Sound insulation pad, motor assembly and vehicle

By adding reinforcements at the installation points of the vehicle-mounted sound insulation pads, the problem of the sound insulation pads being easily detached under conditions such as bumps and vibrations is solved, achieving high structural strength and connection stability at the installation points.

CN222372820UActive Publication Date: 2025-01-21XIAOMI EV TECH CO LTD
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Patent Information

Application Number
CN202421205593.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-29
Publication Date
2025-01-21
Estimated Expiration
2034-05-29

AI Technical Summary

Technical Problem

The existing vehicle sound insulation pads are prone to disengage from the installation point of the motor under conditions such as bumps and vibrations, especially after wading on the water road, the installation point is seriously detached due to weight and repeated bumps.

Method used

Design a sound insulation pad that adds reinforcements at the installation points to enhance the structural strength of the installation points and avoid detachment. The sound insulation pad includes a pad body and a reinforcing member. The pad body is composed of a skin layer and a foam layer. The reinforcing member is fixed on the skin layer or the foam layer to enhance the firmness of the installation point.

Benefits of technology

By enhancing the structural strength of the installation point, it effectively avoids the problem of sound insulation pad detachment due to bumps, vibrations, etc., ensuring the firmness and stability of the connection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sound insulation pad, motor assembly and vehicle, including the pad body and reinforcer, the pad body is equipped with the mounting point that is used for being connected with setting device, the pad body includes the surface layer and the foaming layer, and the surface layer covers the outer side of foaming layer that deviates from the setting device, and the reinforcing member is provided with the mounting point that is used for being connected with the setting device. And the reinforcers are arranged at the mounting points and are fixed on the surface layer or the foaming layer. The sound insulation pad has high structural strength at the mounting point, and the situation that the sound insulation pad is easily separated from a connected device and the like due to bumping, vibration and the like is avoided.
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Description

Technical Field

[0001] The present disclosure relates to the technical field of vehicle accessories, and in particular, to a sound insulation pad, a motor assembly and a vehicle. Background Art

[0002] At present, in order to achieve sound insulation, heat insulation, etc., sound insulation pads and other structures are usually installed around the vehicle-mounted motor. However, in actual use, the sound insulation pads are easily detached and separated from the installation points of the motor, especially after the sound insulation pads have passed through a flooded road and absorbed water. Due to the heavy sound insulation pads and the repeated bumps of the road, the installation points on the upper and lower directions of the sound insulation pads are easily detached. Utility Model Content

[0003] The present disclosure aims to solve one of the technical problems in the related art at least to some extent.

[0004] To this end, an embodiment of the present disclosure proposes a sound insulation pad, which has a high structural strength at the installation point, thereby preventing the sound insulation pad from being easily separated from a connected device due to bumps, vibrations, etc.

[0005] The disclosed embodiment also provides a motor assembly including the above-mentioned sound insulation pad.

[0006] The disclosed embodiment also provides a vehicle including the above motor assembly.

[0007] The sound insulation pad of the embodiment of the present disclosure comprises:

[0008] A pad body, wherein the pad body is provided with a mounting point for connecting with the setting device, the pad body comprises a skin layer and a foam layer, and the skin layer covers the outer side of the foam layer away from the setting device;

[0009] A reinforcement member is arranged at the installation point, and the reinforcement member is fixed to the skin layer or the foaming layer.

[0010] In some embodiments, the reinforcement is fixed to the outside of the skin layer or at least a portion of the reinforcement is embedded in the foaming layer.

[0011] In some embodiments, the reinforcing member is located on the inner side of the skin layer and embedded in the foaming layer, and the reinforcing member is provided with a connecting hole for allowing a portion of the foaming layer to pass through the reinforcing member.

[0012] In some embodiments, the reinforcement is provided with a central hole for a fastener assembled at the mounting point to pass through, and there are multiple communicating holes, which are arranged on the peripheral side of the central hole and spaced apart along the circumference of the central hole.

[0013] In some embodiments, the reinforcement comprises:

[0014] An annular portion and a flange, wherein the center hole is provided in the annular portion, the flange is staggered with the annular portion in the axial direction of the reinforcement, the flange is annular, and the flange surrounds the outer peripheral side of the annular portion;

[0015] The side enclosure is annular and connected between the annular portion and the flange, and at least part of the side enclosure is located on the outer peripheral side of at least part of the epidermis, and the plurality of communicating holes are all provided on the side enclosure.

[0016] In some embodiments, the thickness dimension of the flange is not less than the thickness dimension of the side circumference.

[0017] In some embodiments, the flange is arranged to be inclined toward one side of the annular portion along a direction from inside to outside;

[0018] And / or, the width dimension of each of the communication holes in the circumferential direction of the reinforcement gradually increases along the direction from the inner side to the outer side of the reinforcement.

[0019] In some embodiments, a groove is provided on the outer side of the epidermis, the reinforcing member is disposed in the groove, and at least a portion of the surface of the reinforcing member is fitted and fixed to the groove wall of the groove.

[0020] In some embodiments, the reinforcement includes a folded edge, which is arranged at the outer peripheral edge of the reinforcement and extends along the circumference of the reinforcement to close into a circle, and a gap is reserved between the folded edge and the groove wall of the groove, and the width of the gap gradually increases in the direction away from the foaming layer.

[0021] In some embodiments, the pad body is provided with a first groove and a second groove arranged relatively to each other in the thickness direction of the pad body, the first groove is located on the inner side of the pad body, and the second groove is located on the outer side of the pad body, and the setting device is provided with a protrusion, and at least part of the protrusion is plugged into the first groove.

[0022] The motor assembly of the embodiment of the present disclosure includes a motor and a sound insulation pad as described in any of the above embodiments, and the sound insulation pad is connected and fixed to the motor through the mounting point.

[0023] The vehicle of the disclosed embodiment includes a motor assembly as described in any of the above embodiments.

[0024] Beneficial effects: The sound insulation pad, motor assembly and vehicle of the embodiments of the present invention are provided with reinforcements at the installation points of the sound insulation pads. The reinforcements provide the installation points with higher structural strength, thereby preventing the sound insulation pads from being easily separated from connected devices at the installation points due to bumps, vibrations, etc., thereby ensuring the firmness and stability of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a cross-sectional view of the sound insulation pad at the installation point of the embodiment of the present disclosure. Figure 1 .

[0026] Figure 2 This is a cross-sectional view of the sound insulation pad at the installation point of the embodiment of the present disclosure. Figure 2 .

[0027] Figure 3 yes Figure 1 Schematic top view of the reinforcement of the middle sound insulation pad.

[0028] Figure 4 yes Figure 1 Schematic bottom view of the reinforcement of the middle sound insulation pad.

[0029] Figure 5 yes Figure 2 Schematic top view of the reinforcement of the middle sound insulation pad.

[0030] Figure 6 yes Figure 2 Schematic bottom view of the reinforcement of the middle sound insulation pad.

[0031] Figure 7 yes Figure 1 Schematic diagram of the assembly of the sound insulation pad and the motor.

[0032] Figure 8 yes Figure 2 Schematic diagram of the assembly of the sound insulation pad and the motor.

[0033] Reference numerals:

[0034] 100-sound insulation pad;

[0035] 1-pad body; 11-skin layer; 12-foaming layer; 13-installation point; 14-first groove; 15-second groove;

[0036] 2-reinforcement member; 21-annular portion; 22-side periphery; 23-flange; 24-folded edge; 25-connecting hole; 26-center hole;

[0037] 3- Gap;

[0038] 200-fasteners;

[0039] 300-motor; 301-protrusion. DETAILED DESCRIPTION

[0040] Embodiments of the present disclosure are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure, but should not be understood as limiting the present disclosure.

[0041] like Figure 1 and Figure 2 As shown, the sound insulation pad 100 according to the embodiment of the present disclosure includes a pad body 1 and a reinforcement 2 .

[0042] The pad body 1 is provided with a mounting point 13 for connecting with the setting device. The pad body 1 comprises a skin layer 11 and a foam layer 12 , and the skin layer 11 covers the outer side of the foam layer 12 away from the setting device.

[0043] For example, the pad body 1 may be in the shape of a thin pad, with a thickness direction ( Figure 1 or Figure 2 In the up and down direction in the center, the pad body 1 can be divided into two layers, namely a skin layer 11 and a foaming layer 12, wherein the material of the skin layer 11 can be polyolefin elastomer (POE), and the material of the foaming layer 12 can be polyethylene terephthalate (PET), polyurethane (PU) and other foamable materials.

[0044] The setting device can be a motor 300, an engine, or other devices that need to be installed with the sound insulation pad 100. During assembly, the pad body 1 can be connected and fixed to the setting device through the mounting points 13 arranged on the pad body 1, so as to achieve sound insulation, heat insulation, protection and other effects.

[0045] It should be noted that the mounting points 13 on the pad body 1 can be some hole-like structures arranged on the pad body 1 for fasteners 200 such as bolts to pass through, or can be structural members such as buckles that can achieve connection. The pad body 1 can be provided with only one mounting point 13, and in some other embodiments, the pad body 1 can also be provided with multiple mounting points 13.

[0046] When the sound insulation pad 100 and the setting device are assembled and fixed, the foam layer 12 can be directly in contact with the setting device, and the skin layer 11 is located on the side of the foam layer 12 away from the setting device, that is, the skin layer 11 is located on the outside of the foam layer 12.

[0047] The reinforcement member 2 is provided at the mounting point 13, and the reinforcement member 2 is fixed to the skin layer 11 or the foam layer 12. For example, the reinforcement member 2 may be located in the skin layer 11 or in the foam layer 12, or may be located on the surface of the skin layer 11 or on the surface of the foam layer 12. The reinforcement member 2 can enhance the structural strength at the mounting point 13.

[0048] In some embodiments, the reinforcement member 2 is fixed to the outside of the skin layer 11 or at least part of the reinforcement member 2 is embedded in the foaming layer 12. For example, the reinforcement member 2 can be made of metal, plastic, etc., and the reinforcement member 2 can be integrally formed. Figure 1 As shown, the reinforcement member 2 can be located on the upper side of the skin layer 11 and embedded in the foaming layer 12. Specifically, during processing, the reinforcement member 2 can be first placed on the upper side of the formed skin layer 11, and the position of the reinforcement member 2 corresponds to the installation point 13 on the skin layer 11. Then the reinforcement member 2 can be pressed onto the skin layer 11, and finally the mold is closed for foaming to form the foaming layer 12.

[0049] In other embodiments, Figure 2 As shown, the reinforcement member 2 can also be fixed to the outer side of the skin layer 11 by gluing or bonding. Figure 2 The reinforcement 2 is also located at the mounting point 13 on the skin layer 11 .

[0050] The sound insulation pad 100 of the disclosed embodiment has a reinforcement member 2 added to the outside of the foam layer 12 or the skin layer 11. The reinforcement member 2 can enhance the structural strength at the installation point 13, so that the installation point 13 can withstand stronger impact and pressure, thereby avoiding the situation where the sound insulation pad 100 is easily separated from the setting device at the installation point 13 due to bumps, vibrations, etc., and ensuring the firmness and stability of the connection.

[0051] In some embodiments, the reinforcing member 2 is located inside the skin layer 11 and embedded in the foaming layer 12 , and a connecting hole 25 is provided on the reinforcing member 2 for a portion of the foaming layer 12 to pass through the reinforcing member 2 .

[0052] For example, Figure 4 and Figure 5 As shown, the connecting hole 25 can penetrate the reinforcing member 2 along the thickness direction of the reinforcing member 2, so that during the foaming process, Figure 1 As shown, the foaming materials on the upper and lower sides of the reinforcement 2 can be fused and connected at the connecting hole 25, that is, the foaming layer 12 parts on different sides of the reinforcement 2 can be connected at the connecting hole 25, thereby ensuring the connection strength of the foaming materials on the upper and lower sides of the reinforcement 2, avoiding the foaming layer 12 from being easily cracked or torn at the reinforcement 2, ensuring the stability of the structure, and extending the service life.

[0053] In some embodiments, the reinforcement 2 is provided with a central hole 26 for the fastener 200 assembled at the mounting point 13 to pass through, and there are multiple connecting holes 25, which are arranged around the central hole 26 and spaced apart along the circumference of the central hole 26.

[0054] For example, the mounting point 13 may be a mounting hole arranged on the pad body 1. During assembly, a fastener 200 such as a bolt may pass through the mounting hole on the pad body 1 and be connected and fixed to the setting device. Figure 3 and Figure 4 As shown, the reinforcement member 2 can be a circular ring structure as a whole, and the center hole 26 can be set at the center of the reinforcement member 2, and the center hole 26 can be a circular hole. The center hole 26 can be passed through by the fastener 200, thereby facilitating the assembly and fixation of the fastener 200.

[0055] like Figure 3 and Figure 4 As shown, the reinforcement member 2 may be provided with 8 communication holes 25, and the 8 communication holes 25 may be provided on the outer peripheral side of the central hole 26 and arranged at equal intervals along the circumference of the central hole 26. Thus, each communication hole 25 may fuse and connect the foaming materials on the upper and lower sides of the reinforcement member 2, fully ensuring the connection strength in all directions of the circumferential side of the reinforcement member 2, and ensuring the consistency of the circumferential connection and the balance of force.

[0056] In some other embodiments, the number of the connecting holes 25 may be 3, 4, 5, 6, 7, 9, 10, etc.

[0057] In some embodiments, the reinforcement 2 includes an annular portion 21, a flange 23 and a side enclosure 22, a center hole 26 is provided in the annular portion 21, the flange 23 is staggered with the annular portion 21 in the axial direction of the reinforcement 2, the flange 23 is annular, and the flange 23 surrounds the outer peripheral side of the annular portion 21, the side enclosure 22 is annular and connected between the annular portion 21 and the flange 23, and at least part of the side enclosure 22 is located on the outer peripheral side of at least part of the epidermis 11, and multiple connecting holes 25 are provided in the side enclosure 22.

[0058] For example, Figure 3 and Figure 4 As shown, the reinforcement member 2 as a whole can be a basin-shaped structure or a cap-shaped structure, wherein the annular portion 21 can be generally disc-shaped, the flange 23 can be annular, and the side enclosure 22 can be conical. The annular portion 21, the side enclosure 22, and the flange 23 can be integrally formed, for example, the reinforcement member 2 can be processed into the annular portion 21, the flange 23, and the side enclosure 22 by sheet metal stamping, integral casting, etc.

[0059] In the axial direction of the reinforcement 2 ( Figure 3 In the up-down direction), the flange 23 can be located at the lower side of the annular portion 21, and the flange 23 is arranged concentrically with the annular portion 21 and surrounds the circumference of the annular portion 21, the inner peripheral edge of the side enclosure 22 can be connected to the outer peripheral edge of the annular portion 21, and the outer peripheral edge of the side enclosure 22 can be connected to the inner peripheral edge of the flange 23.

[0060] The above-mentioned multiple connecting holes 25 can be arranged on the side enclosure 22, and the multiple connecting holes 25 can be arranged at equal intervals along the circumference of the side enclosure 22, and the inner side of each connecting hole 25 can extend to the annular portion 21, and the outer side of each connecting hole 25 can extend to the flange 23.

[0061] In some embodiments, the thickness of the flange 23 is not less than the thickness of the side enclosure 22. For example, the thickness of the flange 23 may be greater than the thickness of the side enclosure 22, thereby increasing the contact area between the flange 23 and the foam layer 12 and enhancing the limiting effect in the horizontal plane, and also making the peripheral edge of the reinforcement 2 have a higher structural strength, thereby fully meeting the use requirement of improving the structural strength at the installation point 13.

[0062] In some embodiments, the flange 23 is arranged to be inclined toward one side of the annular portion 21 from the inside to the outside. Figure 1 As shown, along the direction from the inside to the outer peripheral side of the reinforcement 2, the outer peripheral edge of the flange 23 is upwardly tilted compared to the inner peripheral edge of the flange 23, thereby achieving a hooking effect in the radial direction, thereby improving the structural strength of the connection.

[0063] In some embodiments, the width of each communication hole 25 in the circumferential direction of the reinforcement member 2 gradually increases along the direction from the inside to the outside of the reinforcement member 2. Figure 3 and Figure 4 As shown, each connecting hole 25 can be generally a trapezoidal hole, and the width dimension of the connecting hole 25 can be a dimension M. The dimension M can gradually increase along the direction from the annular portion 21 to the flange 23. Thus, the width dimension of the connecting hole 25 can correspond to different parts of the reinforcement 2, thereby improving the connection strength and further avoiding the problem of tearing.

[0064] In some embodiments, Figure 2 As shown, a groove is provided on the outer side of the epidermis 11, the notch of the groove can be arranged downward, and the groove can be a circular groove. The reinforcement 2 is arranged in the groove, and at least part of the surface of the reinforcement 2 is fixedly attached to the groove wall of the groove. For example, the upper surface of the reinforcement 2 can be coated with an adhesive such as glue, so that a part of the upper surface of the reinforcement 2 can be bonded and fixed to the groove wall of the groove, which improves the convenience of processing, and the groove can limit the reinforcement 2 in the horizontal direction, ensuring the stability of the fixation.

[0065] In some embodiments, the reinforcement 2 includes a folded edge 24, which is arranged at the outer peripheral edge of the reinforcement 2 and extends circumferentially along the reinforcement 2 to close into a circle, and a gap 3 is reserved between the folded edge 24 and the groove wall of the groove, and the width dimension of the gap 3 gradually increases in the direction away from the foaming layer 12.

[0066] For example, Figure 5 and Figure 6 As shown, the reinforcement member 2 can be a disk-shaped or basin-shaped structure as a whole, and the folded edge 24 can be provided on the bottom side of the reinforcement member 2. The folded edge 24 is a circular ring as a whole and can extend and close along the contour of the bottom side of the reinforcement member 2. Figure 2 As shown, the curvature or inclination of the reinforcement member 2 at the folded edge 24 may vary. For example, when the axial direction of the reinforcement member 2 is the up-and-down direction, the inclination of the reinforcement member 2 at the folded edge 24 is the largest.

[0067] In this way, a gap 3 can be formed between the folded edge 24 and the groove wall of the groove, thereby preventing the circumferential contour of the folded edge 24 from cutting the skin layer 11 when it directly contacts the skin layer 11, thereby playing a protective role. Secondly, when the sound insulation pad 100 is deformed, the gap 3 can also provide a certain deformation space for the deformation of the sound insulation pad 100.

[0068] In some embodiments, the pad body 1 is provided with a first groove 14 and a second groove 15 which are arranged relatively to each other in the thickness direction of the pad body 1, the first groove 14 is located on the inner side of the pad body 1, and the second groove 15 is located on the outer side of the pad body 1, and a protrusion 301 is provided on the setting device, and at least part of the protrusion 301 is plugged into the first groove 14.

[0069] For example, Figure 1 and Figure 2 As shown, the first groove 14 and the second groove 15 can be arranged relative to each other in the up and down directions, the first groove 14 can be provided on the upper side of the pad body 1, and the notch of the first groove 14 can be arranged upward, and the second groove 15 can be provided on the lower side of the pad body 1, and the notch of the second groove 15 can be arranged downward.

[0070] The setting device can be a motor 300, etc. The motor 300 includes a shell, and the shell can be integrally formed with a protrusion 301. The protrusion 301 protrudes downward and is inserted into the first groove 14, thereby enhancing the restraining and limiting effect between the pad body 1 and the setting device and ensuring the structural stability of the connection.

[0071] The pad body 1 can be connected to the setting device by fasteners 200 such as bolts. During assembly, the end of the fastener 200 and other parts can be hidden in the second groove 15, thereby avoiding the fastener 200 from leaking out and achieving a hidden protection effect.

[0072] The motor assembly of the embodiment of the present disclosure is described below.

[0073] The motor assembly of the embodiment of the present disclosure includes a motor 300 and a sound insulation pad 100 . The sound insulation pad 100 may be the sound insulation pad 100 described in any of the above embodiments. The sound insulation pad 100 is connected and fixed to the motor 300 via a mounting point 13 .

[0074] For example, Figure 7 and Figure 8 As shown, the mounting point 13 may be a mounting hole, and the sound insulation pad 100 may be fixed to the bottom of the motor 300 by fasteners 200 such as bolts, and washers, gaskets, etc. may be provided between the bolt head of the bolt and the sound insulation pad 100. In some other embodiments, the sound insulation pad 100 may also be fixed to the side surface, top surface, etc. of a setting device such as the motor 300.

[0075] It should be noted that when the reinforcement 2 of the sound insulation pad 100 is embedded in the foam layer 12, the force applied by the fastener 200 to the sound insulation pad 100 will be directly transmitted to the reinforcement 2. Since the overall radial dimension of the reinforcement 2 is large, the area where the reinforcement 2 is applied to the foam layer 12 can be regarded as Figure 7 Area A in the middle prevents the sound insulation pad 100 from being separated from the fastener 200 due to the large pressure on the gasket and the washer, which may cause the skin layer 11 and the foam layer 12 to be cracked or cut, thereby ensuring the stability of the connection.

[0076] When the reinforcement member 2 is disposed on the outer side of the skin layer 11, as Figure 8 As shown, the reinforcement member 2 can also increase the effective area between the fastener 200 and the pad body 1, thereby preventing the pad body 1 from falling off and separating from the fastener 200.

[0077] The following describes a vehicle according to an embodiment of the present disclosure.

[0078] The vehicle of the embodiment of the present disclosure includes a motor assembly, which may be a motor assembly as described in any of the above embodiments. The vehicle may be a car, SUV, truck, bus or other vehicle equipped with a motor assembly.

[0079] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present disclosure. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present disclosure.

Claims

1. A sound insulation pad (100), characterized in that: include: A pad body (1), the pad body (1) being provided with a mounting point (13) for connecting with a setting device, the pad body (1) comprising a skin layer (11) and a foam layer (12), and the skin layer (11) covers an outer side of the foam layer (12) away from the setting device; A reinforcing member (2), wherein the reinforcing member (2) is arranged at the mounting point (13), and the reinforcing member (2) is fixed to the skin layer (11) or the foaming layer (12).

2. The sound insulation pad (100) according to claim 1, characterized in that: The reinforcement member is fixed to the outside of the skin layer (11) or at least part of the reinforcement member (2) is embedded in the foaming layer (12).

3. The sound insulation pad (100) according to claim 1, characterized in that: The reinforcing member (2) is located on the inner side of the skin layer (11) and embedded in the foaming layer (12), and the reinforcing member (2) is provided with a connecting hole (25) for allowing part of the foaming layer (12) to pass through the reinforcing member (2).

4. The sound insulation pad (100) according to claim 3, characterized in that: The reinforcement (2) is provided with a central hole (26) for a fastener (200) mounted on the mounting point (13) to pass through, and there are a plurality of connecting holes (25). The plurality of connecting holes (25) are arranged on the peripheral side of the central hole (26) and are spaced apart along the circumference of the central hole (26).

5. The sound insulation pad (100) according to claim 4, characterized in that: The reinforcement member (2) comprises: an annular portion (21) and a flange (23), wherein the central hole (26) is provided in the annular portion (21), the flange (23) is arranged offset from the annular portion (21) in the axial direction of the reinforcement member (2), the flange (23) is annular, and the flange (23) surrounds the outer peripheral side of the annular portion (21); A side enclosure (22) is annular and connected between the annular portion (21) and the flange (23), and at least part of the side enclosure (22) is located on the outer peripheral side of at least part of the epidermis (11), and the plurality of connecting holes (25) are all provided on the side enclosure (22).

6. The sound insulation pad (100) according to claim 5, characterized in that: The thickness of the flange (23) is not less than the thickness of the side periphery (22).

7. The sound insulation pad (100) according to claim 5, characterized in that: The flange (23) is arranged in an inclined manner toward one side of the annular portion (21) from the inside to the outside; And / or, the width dimension of each of the communicating holes (25) in the circumferential direction of the reinforcing member (2) gradually increases along the direction from the inside to the outside of the reinforcing member (2).

8. The sound insulation pad (100) according to claim 1, characterized in that: A groove is provided on the outer side of the skin layer (11), the reinforcing member (2) is arranged in the groove, and at least a part of the surface of the reinforcing member (2) is fitted and fixed to the groove wall of the groove.

9. The sound insulation pad (100) according to claim 8, characterized in that: The reinforcement member (2) comprises a folded edge (24), the folded edge (24) being arranged at the outer peripheral edge of the reinforcement member (2) and extending along the circumference of the reinforcement member (2) to be closed into a circle, and a gap (3) is reserved between the folded edge (24) and the groove wall of the groove, and the width dimension of the gap (3) gradually increases along the direction away from the foaming layer (12).

10. The sound insulation pad (100) according to any one of claims 1 to 9, characterized in that: The pad body (1) is provided with a first groove (14) and a second groove (15) which are arranged opposite to each other in the thickness direction of the pad body (1); the first groove (14) is located on the inner side of the pad body (1), and the second groove (15) is located on the outer side of the pad body (1); the setting device is provided with a protrusion (301), and at least a part of the protrusion (301) is plugged into and fitted in the first groove (14).

11. A motor assembly, characterized in that: It comprises a motor (300) and a sound insulation pad (100) as described in any one of claims 1 to 10, wherein the sound insulation pad (100) is connected and fixed to the motor (300) via the mounting point (13).

12. A vehicle, characterized in that: It comprises the motor assembly as claimed in claim 11 above.