Acoustic bag mounted on automobile motor

Abstract

An acoustic bag mounted on an automobile motor comprises a protective cover and a sound absorbing layer. The sound absorption layer is attached to the outer side of the automobile motor. The protective cover comprises a side cover part and a wrapping part. The side cover part comprises a first receding hole, a positioning part and a connecting hole. The first function protrusion is sleeved with the first receding hole. And the positioning part is propped against the side cover plate. The wrapping part extends out of the side cover part and is integrally formed with the side cover part. The wrapping part extends from the side cover part along the outer side wall of the protective cover and is attached to the outer side wall of the protective cover. The sound absorption layer comprises a second receding hole and a welding hole. The edge of the first receding hole and the edge of the second receding hole are fixed together. And the welding holes and the connecting holes are fixed together. According to the acoustic bag, the sound absorption layer cannot be tightly attached to the automobile motor, the sound attenuation effect can be achieved, and meanwhile the heat dissipation effect can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing, and in particular to an acoustic package mounted on an automobile motor. Background Technology

[0002] The noise generated by the motors of automobiles, especially new energy vehicles such as electric vehicles, is one of the most pressing issues to be addressed in the automotive industry. Without noise reduction and silencing, the noise generated by mechanical movement and vibration is enormous, affecting both the driver and the surrounding residents.

[0003] A sound-dampening package is a device used to reduce the noise of a car's electric motor. Most are integrated with the motor and suspended within the vehicle body, significantly reducing noise. Existing sound-dampening packages come in two types: one is made of soft sound-dampening material, which adheres tightly to the motor, thus improving noise reduction but hindering heat dissipation; the other type is made of plastic, which, while not adhering tightly to the motor and allowing for better heat dissipation, still offers less effective noise reduction. Utility Model Content

[0004] In view of this, the present invention provides an acoustic package mounted on an automotive motor that can solve the above-mentioned problems.

[0005] An acoustic package for mounting on an automotive motor includes a side assembly plate, a side cover plate disposed on one side of the side assembly plate, and a bearing cover disposed on the other side of the side assembly plate. The side assembly plate has at least one first functional protrusion. The protective cover has at least one second functional protrusion. The acoustic package for the automotive motor includes a protective cover and a sound-absorbing layer disposed within the protective cover. The sound-absorbing layer is attached to the outer side of the automotive motor. The protective cover includes a side cover portion covering the outer sides of the side assembly plate and the side cover plate, and a wrapping portion wrapping around the bearing cover. The side cover portion includes at least one first clearance hole corresponding to the side assembly plate, at least one positioning portion corresponding to the side cover plate, and a connecting hole disposed on the positioning portion. The first clearance hole is fitted onto the first functional protrusion. The positioning portion abuts against the side cover plate. The wrapping portion extends from the side cover portion and is integrally formed with the side cover portion. The covering portion extends from the side cover portion and is attached to the outer side wall of the bearing cover. The sound-absorbing layer is made of sound-absorbing material and is attached to the inner side wall of the protective cover, including at least one second clearance hole corresponding to the first clearance hole, and at least one welding hole corresponding to the connecting hole. The edge of the first clearance hole is fixed together with the edge of the second clearance hole. The welding hole is fixed together with the connecting hole.

[0006] Furthermore, the protective cover is made of plastic or rubber.

[0007] Furthermore, the edges of the first clearance hole and the second clearance hole are bonded together by ultrasonic welding or by thermoforming.

[0008] Furthermore, the welding holes are bonded together by ultrasonic welding or by thermal fusion.

[0009] Furthermore, the sound-absorbing layer is made of single-component or multi-component sound-absorbing cotton through punching, hot pressing, and laser cutting processes.

[0010] Furthermore, the first functional protrusion is provided with a mounting hole, and the first clearance hole abuts against the first functional protrusion.

[0011] Furthermore, the edge of the connecting hole abuts against the side cover plate, and the sound-absorbing layer is sandwiched between the side cover plate and the protective cover.

[0012] Furthermore, the second functional protrusion is a wiring socket or a cooling water pipe, and the wrapping portion bypasses the second functional protrusion.

[0013] Furthermore, the sound-absorbing layer is sandwiched between the second functional protrusion and the protective cover.

[0014] Compared with the prior art, the acoustic package for mounting on a car motor provided by this utility model consists of a protective cover and a sound-absorbing layer. The sound-absorbing layer is fixed to the protective cover, so that the sound-absorbing layer is not in close contact with the car motor. It can not only play a role in noise reduction, but also play a role in heat dissipation. At the same time, because the protective cover has a certain strength, its shape can be fixed during injection molding, which makes the assembly of the acoustic package for the illiterate simple and convenient, and facilitates assembly line operation. Attached Figure Description

[0015] Figure 1 An exploded view of the acoustic package mounted on an automotive motor, as provided by this utility model.

[0016] Figure 2 for Figure 1 A schematic diagram of the acoustic package mounted on the car's motor.

[0017] Figure 3 for Figure 2 An exploded view of the acoustic package mounted on the car's motor. Detailed Implementation

[0018] The specific embodiments of this utility model are described in further detail below. It should be understood that the description of the embodiments of this utility model herein is not intended to limit the scope of protection of this utility model.

[0019] like Figures 1 to 3 The diagram shows a schematic of the acoustic package mounted on an automotive motor according to this invention. The acoustic package is mounted on the automotive motor. The automotive motor itself is a prior art technology, comprising a side assembly plate 10, a side cover plate 11 disposed on one side of the side assembly plate 10, and a bearing cover 12 disposed on the other side of the side assembly plate 10. The side assembly plate 10, the side cover plate 11, and the bearing cover 12 are all the outer casing of the automotive motor. It is conceivable that various components, such as bearings, cooling systems, etc., are assembled inside this casing. The side assembly plate 10 is provided with at least one first functional protrusion 101. This first functional protrusion 101 protrudes from the side wall of the side assembly plate 10 and can be provided with mounting holes, connection holes, etc. The side assembly plate 10 is also provided with at least one second functional protrusion 102. This second functional protrusion 102 also protrudes from the side wall of the bearing cover 12 and can be a wiring socket or a cooling water pipe, etc. The acoustic package mounted on the automotive motor includes a protective cover 20 and a sound-absorbing layer 21 disposed inside the protective cover 20. It is understood that the acoustic package also includes other functional structures, such as water outlets, connection structures, etc., which are technologies well known to those skilled in the art and will not be described in detail here.

[0020] The protective cover 20 includes a side cover portion 201 covering the outside of the side assembly plate 10 and the side cover plate 11, and a wrapping portion 202 wrapping around the bearing cover 12. The protective cover 20 can be made of plastic or rubber and can be injection molded into the desired shape. The side cover portion 201 includes at least one first clearance hole 203 corresponding to the side assembly plate 10, at least one positioning portion 204 corresponding to the side cover plate 11, and a connecting hole 205 provided on the positioning portion 204. The first clearance hole 203 is fitted onto the first functional protrusion 101 so that the first functional protrusion 101 can perform its function. The positioning portion 204 abuts against the side cover plate 11 to position the protective cover 20 and the side cover plate 201 of the automotive motor. The connecting hole 205 is provided on the positioning portion 204 and is used to connect and fix with the sound-absorbing layer 21. The shape of the connecting hole 205 can be square or circular, which can be set according to actual needs. The wrapping portion 202 extends from the side cover portion 201 and is attached to the outer side wall of the bearing cover 12. Therefore, the shape of the wrapping portion 202 should be the same as the shape of the bearing cover 12. The wrapping portion 202 extends from the side cover portion 201 and is integrally formed with the side cover portion 201.

[0021] The sound-absorbing layer 21 is attached to the outer side of the automotive motor and is made of sound-absorbing material, and is attached to the inner sidewall of the protective cover 20. The sound-absorbing layer 21 is made of single-component or multi-component sound-absorbing cotton through punching, hot pressing, and laser cutting processes, and the shape of the sound-absorbing layer 21 should be similar to the shape of the protective cover 20. The sound-absorbing layer 21 includes at least one second clearance hole 211 corresponding to the first clearance hole 203, and at least one welding hole 212 corresponding to the connecting hole 205. The second clearance hole 211 is correspondingly provided to the first clearance hole 203, and the edge of the second clearance hole 211 is fixed to the edge of the first clearance hole 203. The fixing method can be ultrasonic welding or hot-melt bonding. The first clearance hole 203 abuts against the first functional protrusion 101, thereby sandwiching the corresponding sound-absorbing layer 21 between the protective cover 20 and the side assembly plate 10. The welding hole 212 corresponds to the connecting hole 205, and because the edge of the connecting hole 205 abuts against the side cover plate 11, the sound-absorbing layer 21 is sandwiched between the side cover plate 11 and the protective cover 20. Due to the presence of the second functional protrusion 102, the wrapping part 202 needs to bypass the second functional protrusion 102, and at the same time, the corresponding second clearance hole 211 of the sound-absorbing layer 21 is sandwiched between the second functional protrusion 102 and the protective cover 20.

[0022] Compared with the prior art, the acoustic package for mounting on a car motor provided by this utility model consists of a protective cover 20 and a sound-absorbing layer 21. The sound-absorbing layer 21 is fixed to the protective cover 20, so that the sound-absorbing layer 21 will not be in close contact with the car motor. It can not only play a role in noise reduction, but also play a role in heat dissipation. At the same time, since the protective cover 20 has a certain strength, its shape can be fixed during injection molding, which makes the assembly method of the acoustic package for the illiterate simple and convenient, and facilitates the assembly line operation.

[0023] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Any modifications, equivalent substitutions or improvements within the spirit of the present utility model are covered within the scope of the claims of the present utility model.

Claims

1. An acoustic package for an automotive electrical machine, said automotive electrical machine comprising a side assembly plate, a side cover plate arranged on one side of said side assembly plate, and a bearing cover arranged on the other side of said side assembly plate, said side assembly plate being provided with at least one first functional protrusion, said bearing cover being provided with at least one second functional protrusion, characterized in that The acoustic package mounted on the automobile motor comprises a protective cover and an acoustic absorption layer arranged on the inner layer of the protective cover, the acoustic absorption layer is arranged on the outer side of the automobile motor, the protective cover comprises a side cover part arranged on the outer side of the side assembly plate and the side cover plate, and a wrapping part wrapped on the bearing cover, the side cover part comprises at least one first avoiding hole corresponding to the side assembly plate, at least one positioning part corresponding to the side cover plate, and a connecting hole arranged on the positioning part, the first avoiding hole is sleeved on the first functional protrusion, the positioning part abuts against the side cover plate, the wrapping part is extended from the side cover part and is integrally formed with the side cover part, the wrapping part is arranged on the outer side wall of the bearing cover from the outer side wall of the side cover part, the acoustic absorption layer is made of acoustic absorption material and is arranged on the inner side wall of the protective cover and comprises at least one second avoiding hole corresponding to the first avoiding hole and at least one welding hole corresponding to the connecting hole, the edges of the first avoiding hole and the second avoiding hole are fixed together, and the welding hole and the connecting hole are fixed together.

2. The acoustic pack for mounting on an automotive electrical machine of claim 1, wherein: The protective cover is made of plastic or rubber.

3. The acoustic pack for mounting on an automotive electrical machine of claim 1 wherein: The edges of the first avoiding hole and the second avoiding hole are bonded together by ultrasonic welding or hot melting.

4. The acoustic package for an automotive electrical machine of claim 1, wherein: The welding hole and the connecting hole are bonded together by ultrasonic welding or hot melting.

5. The acoustic package for an automotive electrical machine of claim 1, wherein: The acoustic absorption layer is made of single-component or multi-component acoustic absorption cotton through punching, hot pressing and laser cutting processes.

6. The acoustic pack for mounting on an automotive electrical machine of claim 1 wherein: Mounting holes are arranged on the first functional protrusion, and the first avoiding hole abuts against the first functional protrusion.

7. The acoustic pack for mounting on an automotive electrical machine of claim 1 wherein: The edges of the connecting hole abut against the side cover plate, and the acoustic absorption layer is clamped between the side cover plate and the protective cover.

8. The acoustic pack for mounting on an automotive electrical machine of claim 1 wherein: The second functional protrusion is a wiring socket or a cooling water pipe, and the wrapping part bypasses the second functional protrusion.

9. The acoustic pack mounted on an automotive electrical machine according to claim 8, characterized in that: The acoustic absorption layer is clamped between the second functional protrusion and the protective cover.

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