Fixing structure, acoustic bag mounting structure, electric driving system and vehicle

Abstract

The utility model relates to a fixing structure, an acoustic bag mounting structure, an electric driving system and a vehicle. The fixing structure comprises a mounting boss, a gasket and a connecting piece, and the mounting boss is assembled and fixed with the gasket through the connecting piece; the gasket comprises an outer gasket and an inner gasket arranged on the outer gasket, and a crack used for clamping an acoustic bag is formed between the outer gasket and the inner gasket. The utility model further provides a mounting structure of the acoustic bag. The mounting structure comprises the fixing structure. The utility model further provides an electric driving system which comprises the acoustic bag installation structure. The utility model further provides a vehicle which comprises the electric driving system. According to the utility model, the problem of poor reliability of the fixing structure of the existing acoustic bag is solved, and the manufacturing difficulty of the electric drive and the acoustic bag is also reduced.

Description

Technical Field

[0001] This utility model relates to the field of component assembly technology, specifically to a fixed structure, an acoustic package mounting structure, an electric drive system, and a vehicle. Background Technology

[0002] Given that electric vehicle drive systems often operate in harsh environments characterized by high temperature, high humidity, and high-frequency vibration, the mounting structure of their acoustic packages faces numerous challenges. Without a fixing device between the acoustic package and the drive unit, the package is prone to detachment under high temperature and humidity conditions. Currently, due to material limitations, there are two main methods for mounting acoustic packages: First, bolts are used to tightly press the acoustic package onto the drive unit. However, this method causes the bolts to directly apply pressure to the soft acoustic material, leading to material fatigue and damage, and the bolts are also prone to loosening. Second, plastic clips are used for clamping and fixing. However, this method suffers from the problem of mutual wear between the plastic clips and the acoustic package during vibration, resulting in poor mounting performance. Therefore, under current high temperature, high humidity (moisture absorption increases weight), and high-frequency vibration environments, existing acoustic package mounting methods suffer from poor reliability, making it difficult to meet conventional warranty period requirements.

[0003] Existing technology discloses an acoustic encapsulation fixing device for an electric motor, including a metal clip body and a boss body. The metal clip body is fixedly connected to the vehicle body, and the boss body is connected to the electric drive acoustic encapsulation fixing point on the motor housing. The boss body includes a connecting circular plate fixedly connected to the motor housing, a limiting circular plate that cooperates with the metal clip body, and a connecting post that fixes the connecting circular plate and the limiting circular plate together. The diameters at both ends of the connecting post are smaller than the diameters of the limiting circular plate and the connecting circular plate. Through the cooperation of the metal clip body and the boss body, this fixing device can improve the reliability under high temperature, high humidity, and high frequency vibration and the effectiveness of acoustic encapsulation throughout the vehicle's life cycle to a certain extent. However, this fixing device requires the electric drive body to have a complex-shaped boss, which undoubtedly increases the manufacturing difficulty of the electric drive. At the same time, the assembly of the metal clip relies on manual pressing, which has strict requirements on the thickness of the acoustic encapsulation; otherwise, it is easy to cause assembly problems or the device cannot be tightly pressed. In addition, the dimensions and positional accuracy of the mounting holes for the acoustic package are extremely critical; otherwise, assembly problems or loosening of the acoustic package may occur, further increasing the manufacturing difficulty of the acoustic package. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a fixing structure, an acoustic package mounting structure, an electric drive system, and a vehicle, so as to solve the problem of poor reliability of existing acoustic package fixing structures, and also to reduce the manufacturing difficulty of electric drive and acoustic package.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A fixing structure includes: a mounting boss, a washer, and a connector, wherein the mounting boss is assembled and fixed to the washer via the connector;

[0007] The gasket includes an outer gasket and an inner gasket disposed on the outer gasket, with a gap formed between the outer gasket and the inner gasket for clamping the acoustic package.

[0008] Based on the aforementioned technical methods, by cleverly designing the gasket as a combination of an outer and an inner gasket, a gap is formed between the outer and inner gaskets to hold the acoustic package, effectively securing the acoustic package. This gap design also helps to better fix the acoustic material, reducing vibration and noise transmission, thereby improving the overall sound insulation effect. Simultaneously, the double-layer structure of the outer and inner gaskets increases the contact area between the gasket and the acoustic package, enhancing the reliability and stability of the acoustic package's fixation. This ensures the reliability of the acoustic package under high temperature, high humidity, and high-frequency vibration, effectively guaranteeing the effectiveness of the acoustic package throughout the vehicle's lifespan. This, in turn, effectively improves noise, vibration, and acoustic roughness issues throughout the vehicle's lifespan, further enhancing the user experience. Furthermore, the assembly and fixation of the mounting boss and gasket using connectors simplifies the assembly process, improves installation efficiency, and reduces production costs. This invention effectively solves the reliability problem of existing acoustic package fixing structures. Furthermore, this fixing structure has no special requirements for the electric drive and acoustic package. Compared to existing acoustic package fixing structures, which require adding complex-shaped bosses to the electric drive body and have strict requirements on the thickness of the acoustic package, this fixing structure, through the coordinated use of mounting bosses, washers, and connectors, has lower thickness requirements at the fixing points of the electric drive and acoustic package, effectively reducing the manufacturing difficulty of the electric drive and acoustic package. This fixing structure has the advantages of simple structure, good acoustic performance, and convenient assembly, and can be widely used in applications requiring sound insulation and vibration reduction, such as automobiles, construction, and machinery.

[0009] Preferably, in order to ensure the reliability of the acoustic package held in the gap, the width of the gap is smaller than the thickness of the acoustic package, so that the acoustic package and the gap are interference fit.

[0010] Preferably, the outer washer has a fixed circular plate, a limiting ring disposed on the fixed circular plate, and a limiting claw disposed on the limiting ring.

[0011] A stable base is provided by cleverly designed fixed circular plates, ensuring the stability of the entire structure. The locating ring helps to precisely control the position of the external gasket, preventing displacement during use and ensuring the sound insulation and noise reduction performance of the acoustic package. The locating claw design prevents the gasket from being over-compressed during installation or use, thus protecting the gasket and related components from damage. The combined design of the locating ring and locating claw makes the installation process simpler and faster, improving work efficiency.

[0012] Preferably, the fixing circular plate, the limiting ring, and the limiting claw are integrally formed.

[0013] Preferably, the inner washer has a circular ring structure and includes spaced pressure plates and limiting grooves along the circumference. The assembly and fixing of the outer washer and the inner washer are achieved through the limiting groove and the limiting claw.

[0014] The internal washer features a circular ring structure, offering advantages such as simple design and ease of manufacturing. The spaced pressure plates and limiting grooves ensure a secure fit between the external and internal washers, enhancing the overall structural stability. The limiting groove and limiting claw design makes the assembly process more precise, reducing assembly errors and ensuring correct alignment between components. Furthermore, the precision of the assembly method allows for quick and accurate disassembly and reassembly when maintenance or washer replacement is required, improving maintenance efficiency.

[0015] Preferably, the washer is made of stainless metal, which helps to improve the rust resistance of the metal washer. In use, the bolt is simply passed through the inner hole of the metal washer and tightened with a power tool to the specified torque, which is convenient and quick.

[0016] Preferably, the fixed circular plate has a circular ring structure, and the limiting ring extends from the inner edge of the fixed circular plate to form the limiting ring, and the limiting claws are provided at intervals along the circumferential direction on the limiting ring.

[0017] The fixed circular plate adopts a ring structure, making the overall structure more compact and saving space. The limiting ring effectively restricts the movement range of the components, improving the stability and safety of the fixed structure. The limiting claws are spaced apart along the circumference, allowing for more precise control of the limiting effect and ensuring that the components are stably positioned within a predetermined range. Through the combined design of the limiting rings and limiting claws, components can be positioned quickly and accurately, improving the efficiency of assembly or operation.

[0018] Preferably, the mounting boss includes a connecting circular plate and a connecting post disposed on the connecting circular plate, and the connecting post is provided with mounting holes for assembling the connector.

[0019] The fixing structure, through the design of connecting circular plates and connecting columns, achieves a simple and effective connection method, facilitating production and assembly. The connecting columns are equipped with mounting holes for assembling connectors, making the installation process more convenient and improving assembly efficiency. The combination of the connecting circular plates and connecting columns provides a stable support structure, ensuring the secure installation of connectors and enhancing the overall structural stability. Due to the design of the mounting holes, this fixing structure can be applied to different types of connectors, exhibiting good versatility and adaptability. The simple structure and convenient connection method make daily maintenance and connector replacement easy, reducing maintenance costs.

[0020] Preferably, the connecting circular plate and the connecting column are integrally formed.

[0021] Preferably, the connectors are selected from fasteners such as bolts, screws, rivets, and pins, and their purpose is to reliably secure the acoustic package to the mounting boss. The selection of connectors depends on the size and weight of the acoustic package and the specific requirements of the installation location. In practical applications, appropriate connectors can be selected as needed to ensure structural stability and effective securing of the acoustic package.

[0022] This utility model also provides an installation structure for an acoustic package, including the fixing structure described in this utility model.

[0023] Preferably, the acoustic package has a through hole that mates with the gasket.

[0024] For example, the diameter of the through hole in the acoustic package is slightly larger than the inner diameter of the retaining ring.

[0025] This invention also provides an electric drive system, including an acoustic package mounting structure as described in this invention.

[0026] Preferably, the mounting boss is provided on the motor housing of the electric drive system.

[0027] For example, the connecting circular plate of the mounting boss is fixedly mounted on the motor housing of the electric drive system.

[0028] This utility model also provides a vehicle including the electric drive system as described in this utility model.

[0029] The beneficial effects of this utility model are:

[0030] The fixing structure of this utility model cleverly combines an outer washer and an inner washer, creating a clamping gap between them to secure the acoustic package. This effectively fixes the acoustic package and the gap design helps to better secure the acoustic material, reducing vibration and noise transmission, thereby improving the overall sound insulation effect. Simultaneously, the double-layer structure of the outer and inner washer increases the contact area between the washer and the acoustic package, enhancing the reliability and stability of the acoustic package's fixation. This ensures the reliability of the acoustic package under high temperature, high humidity, and high frequency vibration, effectively guaranteeing the effectiveness of the acoustic package throughout the vehicle's lifespan. This, in turn, effectively improves noise, vibration, and acoustic roughness issues throughout the vehicle's lifespan, further enhancing the user experience. Furthermore, the assembly and fixing of the mounting boss and washer using connectors simplifies the assembly process, improves installation efficiency, and reduces production costs. This invention effectively solves the reliability problem of existing acoustic package fixing structures. Furthermore, this fixing structure has no special requirements for the electric drive and acoustic package. Compared to existing acoustic package fixing structures, which require adding complex-shaped bosses to the electric drive body and have strict requirements on the thickness of the acoustic package, this fixing structure, through the coordinated use of mounting bosses, washers, and connectors, has lower thickness requirements at the fixing points of the electric drive and acoustic package, effectively reducing the manufacturing difficulty of the electric drive and acoustic package. This fixing structure has the advantages of simple structure, good acoustic performance, and convenient assembly, and can be widely used in applications requiring sound insulation and vibration reduction, such as automobiles, construction, and machinery. Attached Figure Description

[0031] Figure 1 This is an exploded view of the installation structure of the acoustic package of this utility model;

[0032] Figure 2 This is a cross-sectional view of the installation structure of the acoustic package of this utility model;

[0033] Figure 3 This is a schematic diagram of the washer structure;

[0034] Figure 4 This is a schematic diagram of the external washer.

[0035] Figure 5 This is a schematic diagram of the internal washer structure;

[0036] Figure 6 A schematic diagram of the structure for installing the boss;

[0037] Figure 7 This is a partial view of the acoustic package;

[0038] Among them, 1-mounting boss, 11-connecting round plate, 12-connecting column, 13-mounting hole; 2-washer, 21-external washer, 211-fixing round plate, 212-limiting ring, 213-limiting claw, 22-internal washer, 221-pressure plate, 222-limiting groove, 23-gap; 3-connector; 4-acoustic package, 41-through hole. Detailed Implementation

[0039] The embodiments of this utility model will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be understood that the preferred embodiments are only for illustrating this utility model and not for limiting the scope of protection of this utility model.

[0040] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0041] Numerous details are explored in the following description to provide a more thorough explanation of embodiments of this application; however, it will be apparent to those skilled in the art that embodiments of this application may be implemented without these specific details.

[0042] This utility model aims to disclose a fixed structure, an acoustic package mounting structure, an electric drive system, and a vehicle, in order to solve the problem of poor reliability of existing acoustic package fixed structures, and also to reduce the manufacturing difficulty of electric drive and acoustic package.

[0043] like Figures 1 to 7 As shown, a fixing structure includes: a mounting boss 1, a washer 2, and a connector 3, wherein the mounting boss 1 is assembled and fixed to the washer 2 through the connector 3;

[0044] The washer 2 includes an outer washer 21 and an inner washer 22 disposed on the outer washer 21, and a slot 23 for clamping the acoustic package 4 is formed between the outer washer 21 and the inner washer 22.

[0045] By cleverly designing the gasket as a combination of an outer and inner gasket, a gap is created between the outer and inner gaskets to hold the acoustic package, effectively securing it. This gap design also helps to better fix the acoustic material, reducing vibration and noise transmission, thereby improving the overall sound insulation effect. Simultaneously, the double-layer structure of the outer and inner gaskets increases the contact area between the gasket and the acoustic package, enhancing the reliability and stability of the acoustic package's fixation. This ensures the reliability of the acoustic package under high temperature, high humidity, and high-frequency vibration, effectively guaranteeing the effectiveness of the acoustic package throughout the vehicle's lifespan. This, in turn, effectively improves noise, vibration, and acoustic roughness issues throughout the vehicle's lifespan, further enhancing the user experience. Furthermore, the assembly and fixation of the mounting boss and gasket using connectors simplifies the assembly process, improves installation efficiency, and reduces production costs. This effectively solves the problem of poor reliability in existing acoustic package fixing structures. Furthermore, this fixing structure has no special requirements for the electric drive and acoustic package. Compared with the existing acoustic package fixing structure, which requires the addition of complex-shaped bosses to the electric drive body and has strict requirements on the thickness of the acoustic package, this fixing structure, through the coordinated use of mounting bosses, washers and connectors, has low thickness requirements at the fixing point of the electric drive and acoustic package, effectively reducing the manufacturing difficulty of the electric drive and acoustic package.

[0046] For example, in order to ensure the reliability of the acoustic package held by the gap, the width of the gap 23 is smaller than the thickness of the acoustic package 4, so that the acoustic package 4 and the gap 23 are interference fit.

[0047] In some embodiments, the outer washer 21 has a fixed circular plate 211, a limiting ring 212 disposed on the fixed circular plate 211, and a limiting claw 213 disposed on the limiting ring 212.

[0048] The design of the fixed circular plate provides a stable base for the external gasket, ensuring the stability of the entire structure. The limiting ring helps to precisely control the position of the external gasket, preventing displacement during use and ensuring the sound insulation and noise reduction performance of the acoustic package. The limiting claw design prevents the gasket from being over-compressed during installation or use, thus protecting the gasket and related components from damage. The combined design of the limiting ring and limiting claw makes the installation process simpler and faster, improving work efficiency.

[0049] For example, the fixed circular plate 211, the limiting ring 212 and the limiting claw 213 are integrally formed structures.

[0050] In some embodiments, the inner washer 22 has a circular ring structure and includes a pressure plate 221 and a limiting groove 222 spaced apart along the circumferential direction. The assembly and fixing of the outer washer 21 and the inner washer 22 are achieved through the limiting groove 222 and the limiting claw 213 limiting cooperation.

[0051] The internal washer features a circular ring structure, offering advantages such as simple design and ease of manufacturing. The spaced pressure plates and limiting grooves ensure a secure fit between the external and internal washers, enhancing the overall structural stability. The limiting groove and limiting claw design makes the assembly process more precise, reducing assembly errors and ensuring correct alignment between components. Furthermore, the precision of the assembly method allows for quick and accurate disassembly and reassembly when maintenance or washer replacement is required, improving maintenance efficiency.

[0052] For example, washer 2 is made of stainless metal, which helps to improve the rust resistance of the metal washer. In use, simply pass the bolt through the inner hole of the metal washer and tighten it with a power tool to the specified torque; it is convenient and quick.

[0053] In some embodiments, the fixed circular plate 211 has a circular ring structure, and the limiting ring 212 is formed extending from the inner edge of the fixed circular plate 211. The limiting ring 212 is provided with limiting claws 213 spaced apart along the circumferential direction.

[0054] The fixed circular plate adopts a ring structure, making the overall structure more compact and saving space. The limiting ring effectively restricts the movement range of the components, improving the stability and safety of the fixed structure. The limiting claws are spaced apart along the circumference, allowing for more precise control of the limiting effect and ensuring that the components are stably positioned within a predetermined range. Through the combined design of the limiting rings and limiting claws, components can be positioned quickly and accurately, improving the efficiency of assembly or operation.

[0055] In some embodiments, the mounting boss 1 includes a connecting circular plate 11 and a connecting post 12 provided on the connecting circular plate 11, and the connecting post 12 is provided with a mounting hole 13 for assembling the connector 3.

[0056] The fixing structure, through the design of connecting circular plates and connecting columns, achieves a simple and effective connection method, facilitating production and assembly. The connecting columns are equipped with mounting holes for assembling connectors, making the installation process more convenient and improving assembly efficiency. The combination of the connecting circular plates and connecting columns provides a stable support structure, ensuring the secure installation of connectors and enhancing the overall structural stability. Due to the design of the mounting holes, this fixing structure can be applied to different types of connectors, exhibiting good versatility and adaptability. The simple structure and convenient connection method make daily maintenance and connector replacement easy, reducing maintenance costs.

[0057] For example, the connecting circular plate 11 and the connecting column 12 are integrally formed structures.

[0058] For example, connector 3 is selected from fasteners such as bolts, screws, rivets, and pins, and its purpose is to reliably fix the acoustic package 4 to the mounting boss 1 using these connectors. The selection of connector 3 depends on the size, weight, and specific requirements of the installation location of the acoustic package 4. In practical applications, appropriate connectors can be selected as needed to ensure the stability of the structure and the fixation effect of the acoustic package.

[0059] In some embodiments, an acoustic package mounting structure is also provided, including the fixing structure in any of the above embodiments.

[0060] For example, the acoustic package 4 has a through hole 41 formed to mate with the gasket 2.

[0061] For example, the diameter of the through hole 41 of the acoustic package 4 is slightly larger than the inner diameter of the limiting ring 212.

[0062] In some embodiments, an electric drive system is also provided, including the mounting structure of the acoustic package in any of the above embodiments.

[0063] For example, mounting boss 1 is provided on the motor housing of the electric drive system.

[0064] For example, the connecting circular plate 11 of the mounting boss 1 is fixedly mounted on the motor housing of the electric drive system.

[0065] In the actual assembly of the above-mentioned electric drive system, the connecting circular plate 11 of the mounting boss 1 is fixed to the motor housing of the electric drive system; the inner washer 22 is placed between the motor housing and the acoustic package 4, and the annular hole of the inner washer 22 corresponds to the through hole 41 of the acoustic package 4; the outer washer 21 is placed outside the acoustic package 4, and the annular hole of the outer washer 21 corresponds to the through hole 41 of the acoustic package 4; the limiting claw 213 on the outer washer 21 passes through the through hole 41 of the acoustic package 4 and cooperates with the limiting groove 222 of the inner washer 22 to achieve limiting and fixing, so that the acoustic package 4 is clamped in the gap between the outer washer 21 and the inner washer 22, and is limited by the limiting ring 212; the connecting piece 3 passes through the washer 2 and the acoustic package 4 and is assembled and fixed with the mounting hole 13 on the connecting post 12, thereby achieving the fixing of the acoustic package 4.

[0066] In some embodiments, a vehicle is also provided, including the electric drive system of any of the above embodiments.

[0067] In summary, the fixing structure of this utility model cleverly combines an outer washer and an inner washer, creating a clamping gap between them to secure the acoustic package. This effectively fixes the acoustic package, and the gap design helps to better secure the acoustic material, reducing vibration and noise transmission, thereby improving the overall sound insulation effect. Simultaneously, the double-layer structure of the outer and inner washer increases the contact area between the washer and the acoustic package, enhancing the reliability and stability of the acoustic package's fixation. This ensures the reliability of the acoustic package under high temperature, high humidity, and high frequency vibration, effectively guaranteeing the effectiveness of the acoustic package throughout the vehicle's lifespan. This, in turn, effectively improves noise, vibration, and acoustic roughness issues throughout the vehicle's lifespan, further enhancing the user experience. Furthermore, the assembly and fixing of the mounting boss and washer using connectors simplifies the assembly process, improves installation efficiency, and reduces production costs. This invention effectively solves the reliability problem of existing acoustic package fixing structures. Furthermore, this fixing structure has no special requirements for the electric drive and acoustic package. Compared to existing acoustic package fixing structures, which require adding complex-shaped bosses to the electric drive body and have strict requirements on the thickness of the acoustic package, this fixing structure, through the coordinated use of mounting bosses, washers, and connectors, has lower thickness requirements at the fixing points of the electric drive and acoustic package, effectively reducing the manufacturing difficulty of the electric drive and acoustic package. This fixing structure has the advantages of simple structure, good acoustic performance, and convenient assembly, and can be widely used in applications requiring sound insulation and vibration reduction, such as automobiles, construction, and mechanical equipment. It has significant practical value in the field of component assembly technology.

[0068] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit this application. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this application. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this application should still be covered by the claims of this application.

Claims

1. A fixed structure, characterized in that, include: Mounting boss (1), washer (2) and connector (3), wherein the mounting boss (1) is assembled and fixed to the washer (2) through the connector (3); The gasket (2) includes an outer gasket (21) and an inner gasket (22) disposed on the outer gasket (21), and a gap (23) for clamping the acoustic package (4) is formed between the outer gasket (21) and the inner gasket (22).

2. The fixing structure according to claim 1, characterized in that, The outer gasket (21) has a fixed circular plate (211), a limiting ring (212) provided on the fixed circular plate (211), and a limiting claw (213) provided on the limiting ring (212).

3. The fixture of claim 2, wherein The inner washer (22) has a circular ring structure and includes a pressure plate (221) and a limiting groove (222) spaced apart along the circumference. The assembly and fixing of the outer washer (21) and the inner washer (22) are achieved through the limiting groove (222) and the limiting claw (213).

4. The fixing structure according to claim 2, characterized by The fixed circular plate (211) has a circular ring structure. The limiting ring (212) extends from the inner edge of the fixed circular plate (211) and the limiting claw (213) is provided at intervals along the circumferential direction on the limiting ring (212).

5. The fixture of claim 1, wherein The mounting boss (1) includes a connecting circular plate (11) and a connecting post (12) provided on the connecting circular plate (11). The connecting post (12) is provided with mounting holes (13) for assembling the connector (3).

6. An installation structure of an acoustic pack, characterized by, Includes the fixing structure as described in any one of claims 1 to 5.

7. The mounting structure of the acoustic package according to claim 6, characterized in that, The acoustic package (4) has a through hole (41) that mates with the gasket (2).

8. An electric drive system, characterized in that, The mounting structure includes the acoustic package as described in claim 6 or claim 7.

9. The electric drive system according to claim 8, characterized in that, The mounting boss (1) is provided on the motor housing of the electric drive system.

10. A vehicle, characterized in that, Includes the electric drive system as described in claim 8 or claim 9.

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