Auxiliary frame and vehicle

Abstract

The embodiment of the utility model discloses an auxiliary frame and a vehicle. The auxiliary frame comprises an auxiliary frame assembly. The auxiliary frame assembly is provided with an inner cavity, and the inner cavity is divided into a ventilation layer and a water passing layer. The ventilation layer and the water passing layer are both closed cavities; the ventilation layer can be used as a silencer; the water passing layer at least partially wraps the outer side of the ventilation layer and can be used for providing cooling support for the ventilation layer. According to the technical scheme provided by the embodiment of the invention, the problems that an existing auxiliary frame is single in function and lacks cooling and silencing functions are solved.

Description

Technical Field

[0001] The present application belongs to the technical field of automobile manufacturing, and specifically, relates to a subframe and a vehicle. Background Art

[0002] With the rapid advancement of automotive industry technology, vehicle performance and driving comfort have gradually become the focus of consumers. As a key link in the vehicle structure, the design quality of the subframe is directly related to the vehicle's driving stability and riding quietness.

[0003] However, traditional subframe designs often focus too much on structural strength and stability, while ignoring other important functions, such as cooling and noise reduction. This single design concept can no longer meet the pursuit of versatility and efficiency in modern cars. Therefore, how to innovatively design a subframe assembly that has both excellent structural strength and effective cooling and noise reduction functions has become an important issue that needs to be solved in the current automotive design field. Utility Model Content

[0004] The purpose of the present application is to provide a new technical solution for a subframe and a vehicle, aiming to solve the problem that the existing subframe has a single function and lacks cooling and noise reduction functions.

[0005] According to a first aspect of the present application, there is provided a subframe, the subframe comprising a subframe assembly;

[0006] The subframe assembly has an inner cavity, and the inner cavity is divided into an air permeable layer and a water permeable layer;

[0007] The ventilation layer and the water permeable layer are both closed cavities;

[0008] The ventilation layer can act as a muffler;

[0009] The water-permeable layer is at least partially wrapped around the outer side of the ventilation layer, and can be used to provide cooling support for the ventilation layer.

[0010] Optionally, the subframe assembly includes an outer plate and an inner plate;

[0011] The cavity enclosed by the inner panels forms the ventilation layer;

[0012] The outer panel encloses the outer shell of the subframe assembly;

[0013] The cavity formed between the outer plate and the inner plate is the water permeable layer, and the water permeable layer is used to be filled with cooling liquid.

[0014] Optionally, a water inlet and a water outlet are respectively provided on the sub-frame assembly, and the water permeable layer is respectively connected to the water inlet and the water outlet;

[0015] The water inlet and the water outlet are also connected to the heat dissipation pipeline to form a flow loop of the coolant.

[0016] Optionally, the water inlet is connected to a water inlet pipe behind the valve, and the water outlet is connected to a water outlet pipe;

[0017] Wherein, the water inlet pipe after the valve is connected to the water inlet pipe before the valve, and a one-way valve assembly is arranged at the connection position between the water inlet pipe after the valve and the water inlet pipe before the valve.

[0018] Optionally, a ventilation inlet is provided on the sub-frame assembly, and the ventilation inlet is welded and sealed with the outer panel and the inner panel.

[0019] Optionally, the outer panel and the inner panel are connected via reinforcing ribs.

[0020] Optionally, a partition is provided between the water inlet and the water outlet.

[0021] Optionally, the water inlet and the water outlet are integrally connected to the outer panel.

[0022] Optionally, a plurality of sound-absorbing panels are arranged at intervals inside the ventilation layer, and the sound-absorbing panels are partitions or filters.

[0023] According to a second aspect of the present application, a vehicle is provided, the vehicle comprising the subframe as described in the first aspect; and

[0024] a catalyst assembly, arranged on the subframe assembly;

[0025] The subframe assembly is provided with a ventilation inlet, the ventilation inlet is connected to the ventilation layer, and the ventilation inlet is also connected to the catalyst assembly;

[0026] The ventilation inlet is used to receive the combustion exhaust gas transmitted by the catalyst assembly and introduce the combustion exhaust gas into the ventilation layer.

[0027] Optionally, the vehicle comprises an engine assembly, and the engine assembly is arranged on the subframe assembly;

[0028] The catalyst assembly includes an air inlet and an air outlet;

[0029] The air inlet is connected to the engine assembly and is used to receive combustion exhaust gas from the engine assembly;

[0030] The air outlet is connected to the ventilation inlet, and is used to allow the combustion exhaust gas to flow to the ventilation layer so as to perform noise reduction treatment on the combustion exhaust gas.

[0031] Optionally, a ventilation outlet is provided on the sub-frame assembly, and the ventilation outlet is connected to the ventilation layer for discharging the combustion exhaust gas after the sound-absorbing treatment.

[0032] Optionally, the catalyst assembly includes at least one section of bellows, and the bellows is located between the engine assembly and the subframe assembly.

[0033] Optionally, the vehicle includes a dual motor assembly, a steering gear assembly, a stabilizer bar assembly, a transmission shaft assembly and a lower swing arm assembly;

[0034] Wherein, the dual motor assembly, the steering gear assembly, the stabilizer bar assembly and the lower swing arm assembly are all arranged on the subframe assembly;

[0035] The transmission shaft assembly is arranged on the engine assembly and the dual motor assembly.

[0036] One beneficial effect of the embodiments of the present application is:

[0037] The subframe provided in the embodiment of the present application has a specially designed subframe assembly. By setting independent ventilation layers and water-permeable layers in its inner cavity, the subframe assembly not only maintains the original structural strength, but also successfully integrates the noise reduction and cooling functions. This design can greatly improve the operating stability and driving comfort of the vehicle. In other words, the design of the subframe provided in the embodiment of the present application not only carries the basic function of supporting and protecting important components of the vehicle, but also becomes a multifunctional component integrating noise reduction and cooling. Its compact structural design makes the overall layout of the vehicle more reasonable and greatly improves the space utilization rate; and its stable performance ensures that the vehicle can maintain excellent operating conditions in various complex environments.

[0038] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0040] Figure 1 A schematic diagram of the local structure of a vehicle provided in an embodiment of the present application;

[0041] Figure 2 A three-dimensional diagram of a subframe provided in an embodiment of the present application;

[0042] Figure 3 A schematic cross-sectional view of a subframe assembly provided in an embodiment of the present application;

[0043] Figure 4 A cross-sectional view of the water inlet and outlet of the subframe assembly provided in an embodiment of the present application;

[0044] Figure 5 A cross-sectional view of a vent inlet of a subframe assembly provided in an embodiment of the present application;

[0045] Figure 6 A schematic top cross-sectional view of a subframe assembly provided in an embodiment of the present application.

[0046] Description of reference numerals:

[0047] 1. Engine assembly; 2. Dual motor assembly; 3. Steering gear assembly; 4. Stabilizer bar assembly; 5. Drive shaft assembly; 6. Lower arm assembly; 7. Subframe assembly; 8. Water pipe before valve; 9. One-way valve assembly; 10. Water inlet pipe after valve; 11. Water outlet pipe; 12. Catalyst assembly; 13. Clamp;

[0048] 71. Outer panel; 711. Water inlet; 712. Water outlet; 713. Subframe assembly mounting point; 714. Lower arm assembly mounting point; 715. Rear suspension mounting point; 716. Steering gear assembly mounting point; 717. Stabilizer bar assembly mounting point; 72. Inner panel; 721. Ventilation inlet; 73. Ventilation outlet; 74. Muffler. DETAILED DESCRIPTION

[0049] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0050] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.

[0051] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0052] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0053] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0054] The subframe and the vehicle provided in the embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0055] According to an embodiment of the present application, a subframe is provided, see Figure 1 and Figure 2 The sub-frame includes a sub-frame assembly 7; the sub-frame assembly 7 has an inner cavity, which is divided into a ventilation layer and a water-permeable layer; the ventilation layer and the water-permeable layer are both closed cavities; the ventilation layer can be used as a muffler; the water-permeable layer is at least partially wrapped around the outside of the ventilation layer, and can be used to provide cooling support for the ventilation layer.

[0056] The subframe provided in the embodiment of the present application can be applied to a vehicle.

[0057] According to the sub-frame provided in the embodiment of the present application, the most notable feature is the innovative structure of the sub-frame assembly 7. The sub-frame assembly 7 utilizes its internal space to separate its inner cavity into two independent closed cavities to form: a ventilation layer and a water permeable layer. This design not only fully utilizes the internal space of the sub-frame assembly 7, but also realizes the combination of the two major functions of noise reduction and cooling.

[0058] In the subframe provided in the embodiment of the present application, the ventilation layer is designed to be used as a muffler, which can effectively guide and treat the combustion exhaust gas emitted by the engine assembly 1 of the vehicle, for example (see Figure 1 The engine assembly is shown in the figure), reducing its noise, thereby achieving the effect of silencing. This not only greatly improves driving comfort, but also provides passengers with a quieter riding environment.

[0059] In an embodiment of the present application, the water-permeable layer is cleverly designed on the outside of the ventilation layer, and its main function is to provide efficient and continuous cooling support for the ventilation layer to ensure that the exhaust temperature is effectively controlled. Specifically, when a vehicle using the subframe of the present application is started and driven, the coolant will be introduced into the interior of the water-permeable layer, and through a circulating flow mechanism, the heat generated by the exhaust gas in the ventilation layer is quickly and effectively absorbed and taken away. This design not only ensures that the ventilation layer (i.e., the muffler) can operate in a continuous and stable state, but also effectively avoids the degradation or potential damage of the vehicle performance caused by the high temperature environment, providing a guarantee for improving the overall performance of the vehicle.

[0060] According to the sub-frame provided in the embodiment of the present application, the sub-frame assembly 7 is newly designed, and the structural design of the sub-frame assembly 7 can at least bring the following significant advantages:

[0061] (1) In the embodiment of the present application, the inner cavity of the subframe assembly 7 is used as a muffler, and the dual functions of exhaust and muffler can be achieved without adding new parts, thereby significantly saving the layout space of the front cabin. This design not only provides greater layout flexibility for the integration of the front cabin, but also maximizes the use of space, promoting the compactness and efficiency of vehicle design.

[0062] (2) In the embodiment of the present application, the inner cavity of the subframe assembly 7 is used as a muffler, which can effectively reduce the use of traditional exhaust pipes and muffler assemblies, thereby achieving a lightweight design of the entire vehicle and reducing manufacturing costs, thereby improving the economy and competitiveness of the entire vehicle.

[0063] (3) In the embodiment of the present application, the design of the inner cavity of the sub-frame assembly 7 as a muffler does not have any impact on the structure of the original sub-frame assembly. On the contrary, it maintains the original strength and mode of the sub-frame assembly, ensures that the key functions of the sub-frame assembly such as NVH performance and handling stability are not damaged in any way, and achieves a balance between performance and structure.

[0064] (4) In the embodiment of the present application, the muffler is integrated into the inner cavity of the sub-frame assembly 7, making it a part of the sub-frame assembly 7, but this does not affect the sub-frame assembly 7 according to other components such as the engine assembly 1, the dual motor assembly 2, the steering gear assembly 3, the stabilizer bar assembly 4, the transmission shaft assembly 5 and the lower arm assembly 6, see Figure 1 This design not only maintains the original function of the subframe assembly 7, but also further improves the integration and stability of the entire vehicle.

[0065] (5) In the embodiment of the present application, a closed cavity is formed between the ventilation layer of the sub-frame assembly 7 and the outer shell of the sub-frame assembly 7 as a water-permeable layer, which effectively reduces the exhaust temperature and isolates the influence of the exhaust temperature on the sub-frame assembly. This design not only improves the cooling effect of the muffler, but also further enhances the durability and reliability of the sub-frame.

[0066] (6) In the embodiment of the present application, by using the inner cavity of the subframe assembly 7 as a muffler, the arrangement volume of the muffler is significantly increased, thereby effectively solving the problem of insufficient arrangement space for the muffler in the front cabin. This design not only optimizes the front cabin layout, but also provides strong support for further improving vehicle performance.

[0067] The structural design of the subframe assembly 7 provided in the embodiment of the present application can be assembled in the front cabin structure of the vehicle. Its highly integrated characteristics significantly save the front cabin layout space, providing a wider space for front cabin integration, thereby maximizing the use of space. In addition, the design of the subframe assembly 7 in the present application also has good versatility, so that the battery pack of the hybrid vehicle model and the battery pack assembly of the pure electric vehicle model can be universally interchangeable, thereby effectively improving the pure electric range of the hybrid vehicle model. This design also enables hybrid vehicles and pure electric vehicles to be produced on the same platform, further improving production efficiency and cost-effectiveness.

[0068] At the same time, the lightweight characteristics of the subframe assembly 7 in the embodiment of the present application are also worth mentioning, which not only helps to reduce the weight of the vehicle, but also effectively saves costs. The improvement of the vehicle utilization rate makes the arrangement of chassis-related structural parts more convenient, and the chassis layout becomes more simple and beautiful. It is worth mentioning that the high integration of the battery and the chassis not only improves the structural strength of the vehicle, but also significantly improves the torsional strength of the vehicle, providing a safer and more stable driving experience for the driver and passengers.

[0069] In general, the sub-frame proposed in the embodiment of the present application realizes the perfect combination of efficient use of space and function by designing a sub-frame assembly 7 that integrates a muffler and a cooling structure. The inner cavity of the sub-frame assembly 7 is cleverly sealed and serves as a ventilation layer of the muffler, which not only realizes the exhaust function but also has a noise reduction effect. At the same time, the water-permeable layer designed between the inner cavity of the ventilation layer and the outer layer of the sub-frame assembly provides efficient cooling support for the ventilation layer. This compact and reasonable layout not only improves the performance and comfort of the vehicle, but also brings new design ideas and technological breakthroughs to the field of automobile manufacturing.

[0070] In some examples of this application, see Figure 3 The sub-frame assembly 7 includes an outer plate 71 and an inner plate 72; the cavity enclosed by the inner plate 72 forms the ventilation layer; the outer plate 71 encloses the outer shell of the sub-frame assembly 7; and the cavity formed between the outer plate 71 and the inner plate 72 is the water-permeable layer, which is used to fill the coolant.

[0071] The subframe assembly 7 adopts a unique inner and outer plate structure design, see Figure 3 This structure is composed of an outer plate 71 and an inner plate 72. The cavity formed by the inner plate 72 is designed as a ventilation layer, which is mainly responsible for the circulation and noise reduction of exhaust gas. The outer plate 71 encloses the outer shell of the subframe assembly 7, providing solid protection for the entire structure.

[0072] It is worth noting that a special cavity, namely the water-permeable layer, is formed between the outer plate 71 and the inner plate 72. This design utilizes the internal space of the subframe assembly 7 to fill the coolant. The coolant circulates in the water-permeable layer to effectively absorb and remove the heat generated by the ventilation layer and surrounding components, thereby achieving effective cooling of the engine assembly 1 and the ventilation layer.

[0073] According to the example of the present application, the exhaust gas can be effectively circulated and noise-reduced by enclosing the ventilation layer with the inner plate 72. The water-permeable layer design between the outer plate 71 and the inner plate 72 not only fully utilizes the internal space of the subframe assembly 7, but also effectively cools the engine assembly 1 of the vehicle and the ventilation layer, thereby ensuring that the vehicle can operate normally even in a high temperature environment.

[0074] In addition, this inner and outer plate structure also enhances the overall rigidity and strength of the entire subframe assembly 7, thereby improving the safety of the entire vehicle.

[0075] In some examples of this application, see Figure 3 and Figure 4 The sub-frame assembly 7 is provided with a water inlet 711 and a water outlet 712, and the water permeable layer is connected to the water inlet 711 and the water outlet 712 respectively; the water inlet 711 and the water outlet 712 are also connected to the heat dissipation pipeline to form a flow loop of the coolant.

[0076] See also Figure 3 and Figure 4 The sub-frame assembly 7 is also specially provided with a water inlet 711 and a water outlet 712. These two interfaces are connected to the water-permeable layer of the inner cavity of the sub-frame assembly 7, so as to form a coolant circulation system.

[0077] Specifically, the water inlet 711 can be responsible for introducing the external coolant into the water-permeable layer of the sub-frame assembly 7, and the water outlet 712 is responsible for discharging the circulated coolant. In this way, the coolant can form a closed flow loop between the water inlet 711, the water-permeable layer and the water outlet 712, and continuously cool the sub-frame assembly 7 and its surrounding components.

[0078] Furthermore, the water inlet 711 and the water outlet 712 are also connected to the heat dissipation pipeline, which means that the coolant can not only circulate inside the sub-frame assembly 7, but also exchange heat with the heat dissipation pipeline, further improving the cooling effect.

[0079] According to the example provided in the present application, through the cooperation of the water inlet 711, the water outlet 712 and the water permeable layer, the coolant can achieve efficient circulation inside the sub-frame assembly 7, effectively absorb and take away the heat generated by the sub-frame assembly 7 and its surrounding components, and ensure that these components can operate normally even in a high temperature environment.

[0080] In some examples of this application, see Figure 1 and Figure 2 The water inlet 711 is connected to the water inlet pipe 10 behind the valve, and the water outlet 712 is connected to the water outlet pipe 11; wherein, the water inlet pipe 10 behind the valve is connected to the water inlet pipe 8 before the valve, and a one-way valve assembly 9 is provided at the connection position between the water inlet pipe 10 behind the valve and the water inlet pipe 8 before the valve.

[0081] Combination Figure 3 and Figure 4 The water inlet 711 is connected to the water inlet pipe 10 behind the valve, and the water outlet 712 is connected to the water outlet pipe 11. This layout enables the coolant to form a complete cycle between the water-permeable layer of the sub-frame assembly 7 and the heat dissipation pipeline.

[0082] The post-valve water inlet pipe 10 is not directly connected to the cooling system, but is connected to the pre-valve water inlet pipe 8 through the one-way valve assembly 9. The one-way valve assembly 9 plays a vital role in the entire cooling system. For example, see Figure 1 When the electronic control unit of the vehicle detects that the engine assembly 1 is stopped, it controls the one-way valve assembly 9 to close. This design utilizes the characteristics of the one-way valve assembly 9 to cut off the flow of coolant when the engine assembly 1 is stopped.

[0083] According to the examples provided in this application, its technical effects are mainly reflected in the following aspects:

[0084] Firstly, through the control of the one-way valve assembly 9, accurate management of the coolant flow is achieved, which not only ensures the cooling effect of the vehicle's engine assembly 1 during normal operation, but also avoids energy waste when the engine assembly 1 is shut down.

[0085] Secondly, this design helps extend the service life of the entire cooling system and reduce component damage caused by poor coolant flow or excessive circulation.

[0086] In addition, through the intelligent management of the electronic control unit, the operation of the entire cooling system is more stable and reliable, improving the overall performance of the vehicle and user experience.

[0087] In general, the design of the water inlet 711, the water outlet 712, the one-way valve assembly 9 and the electronic control unit in the example of the present application realizes the precise control and management of the coolant flow, improves the efficiency and reliability of the cooling system, and provides a strong guarantee for the normal operation and long-term use of the vehicle.

[0088] In some examples of the present application, a ventilation inlet 721 is provided on the sub-frame assembly 7 , and the ventilation inlet 721 is welded and sealed with the outer plate 71 and the inner plate 72 .

[0089] In the present application, the design of the subframe assembly 7 takes into account the balance between structural strength and sealing.

[0090] Specifically, the sub-frame assembly 7 is provided with a ventilation inlet 721, which is a key passage to ensure that the combustion exhaust gas can flow smoothly from the catalyst assembly 12 to the ventilation layer of the inner cavity of the sub-frame assembly 7. In order to ensure the overall structural strength and good sealing performance of the sub-frame assembly 7, the ventilation inlet 721 and the outer plate 71 and the inner plate 72 are welded and sealed. This design not only ensures the stability of the structure, but also ensures that only airflow can pass smoothly, thereby achieving efficient exhaust gas transmission and excellent sealing effect.

[0091] In the sub-frame assembly 7, the ventilation inlet 721 is tightly connected to the outer plate 71 and the inner plate 72 by welding, which not only ensures that the exhaust gas can smoothly enter the ventilation layer through the ventilation inlet, but also prevents the exhaust gas or other external substances from leaking from the gap, thereby ensuring the sealing of the whole vehicle.

[0092] The ventilation inlet 721 is, for example, tubular.

[0093] In general, the ventilation inlet 721 in the example of the present application adopts a welding sealing design, which not only ensures the structural strength and sealing of the subframe assembly 7, but also optimizes the exhaust gas treatment process, bringing positive effects to the overall performance and user experience of the vehicle.

[0094] In some examples of the present application, the outer panel 71 and the inner panel 72 are connected via reinforcing ribs.

[0095] In order to enhance the overall structural strength and rigidity of the sub-frame assembly 7 , reinforcing ribs are specially designed to connect the outer plate 71 and the inner plate 72 .

[0096] Specifically, the reinforcing ribs are arranged between the outer plate 71 and the inner plate 72, and are tightly connected to the two by appropriate connection methods such as welding, riveting or bolting, etc. This connection method ensures that the reinforcing ribs can effectively disperse and transfer the stress between the outer plate and the inner plate, thereby improving the load-bearing capacity of the entire subframe assembly 7.

[0097] Regarding the design of adding reinforcing ribs between the inner plate 72 and the outer plate 71: firstly, it significantly enhances the structural strength and rigidity of the sub-frame assembly 7, so that the sub-frame assembly 7 can withstand greater impact and load, and improves the safety of the whole vehicle; secondly, the addition of reinforcing ribs also optimizes the stress distribution of the sub-frame assembly 7, reducing the risk of damage caused by stress concentration. In addition, the reinforcing ribs also help to improve the vibration and noise control performance of the sub-frame assembly 7.

[0098] In some examples of the present application, a partition is provided between the water inlet 711 and the water outlet 712 .

[0099] The main function of the partition is to prevent the water flow between the water inlet 711 and the water outlet 712 from mixing directly. During the operation of the cooling system, the water inlet can be responsible for introducing cold water, while the water outlet is responsible for discharging hot water. If there is no partition, cold and hot water may mix directly between the water inlet and the water outlet. By setting the partition, it can be ensured that cold water and hot water remain relatively independent during the flow process.

[0100] In some examples of the present application, the water inlet 711 and the water outlet 712 are integrally connected to the outer plate 71 .

[0101] The water inlet 711 and the water outlet 712 are connected to the outer plate 71 as a whole, and this design reflects a high degree of structural integration. Specifically:

[0102] First, the water inlet 711 and the water outlet 712 are connected to the outer plate 71 as one body, which means that they are manufactured by an integrated molding technology, such as casting or stamping. Such a manufacturing method reduces the number of parts, simplifies the assembly process, thereby improving production efficiency and reducing production costs.

[0103] Secondly, this integrated design can enhance the overall structural strength and rigidity of the sub-frame assembly 7. Since the water inlet 711 and the water outlet 712 are directly connected to the outer plate 71, the connection between them is more secure and less likely to loosen or leak. This not only improves the reliability of the cooling system, but also enhances the overall stability of the sub-frame.

[0104] In addition, this integrated design also helps reduce the risk of coolant leakage. Since the water inlet 711 and the water outlet 712 are connected to the outer plate 71 as a whole, the sealing performance between them is better and it is not easy to have leakage problems caused by poor connection. This is of great significance for ensuring the normal operation of the cooling system and the continuous and stable operation of the vehicle.

[0105] In some examples of the present application, a plurality of sound-absorbing panels 74 are arranged at intervals inside the ventilation layer, and the sound-absorbing panels 74 are partitions or filters.

[0106] The ventilation layer is designed to be provided with a plurality of muffler plates 74 at intervals. These muffler plates 74 can be in the form of baffles or filters, and they play a key role in acoustic treatment inside the ventilation layer.

[0107] From the working principle, the muffler plate 74 can effectively absorb and scatter sound wave energy through its unique structure and material. When sound waves pass through the muffler plate 74, they will encounter the pores or filter structures on the plate, which will cause the sound waves to reflect, refract and scatter, thereby reducing the intensity of the sound waves. In addition, the material used in the muffler plate 74 also has certain sound absorption properties, which can further absorb sound wave energy and reduce the propagation of noise.

[0108] The design of arranging the muffler plate 74 inside the ventilation layer can significantly reduce the noise of the subframe assembly 7 and its surrounding areas. In application scenarios such as transportation, the muffler plate 74 can effectively reduce the noise generated by components such as the engine. In addition, since the muffler plate 74 is arranged inside the ventilation layer, they can also achieve noise control without affecting the ventilation effect.

[0109] It should be noted that the muffler plates 74, as partitions or filters, not only have an acoustic treatment function, but may also have a positive impact on the flow characteristics of the ventilation layer. They can guide the airflow to be more evenly distributed inside the ventilation layer, and also help prevent dust and other impurities from entering the ventilation layer, keeping it clean and unobstructed.

[0110] According to another embodiment of the present application, a vehicle is also provided. Figures 1 to 3 The vehicle includes the subframe and catalyst assembly 12 as described above, and the catalyst assembly 12 is arranged on the subframe assembly 7; the subframe assembly 7 is provided with a ventilation inlet 721, and the ventilation inlet 721 is connected to the ventilation layer, and the ventilation inlet 721 is also connected to the catalyst assembly 12; the ventilation inlet 721 is used to receive the combustion exhaust gas transmitted by the catalyst assembly 12 and introduce the combustion exhaust gas into the ventilation layer.

[0111] For a vehicle, it is equipped with a catalyst assembly 12, see Figure 2 The catalyst assembly 12 is mounted on the subframe assembly 7. Figure 3 A ventilation inlet 721 is specially designed on the sub-frame assembly 7, and the ventilation inlet 721 is not only connected to the ventilation layer inside the sub-frame assembly 7, but also connected to the catalyst assembly 12. Such a design enables the ventilation inlet 721 to receive the combustion exhaust gas (combustion exhaust gas generated by the engine assembly 1) treated by the catalyst assembly 12, and smoothly introduce it into the ventilation layer.

[0112] First, by integrating the catalyst assembly 12 with the subframe assembly 7, the number of pipeline connections and parts can be reduced, thereby simplifying the structure of the entire vehicle. This improvement not only improves the manufacturing efficiency of the entire vehicle, but also reduces maintenance costs.

[0113] Secondly, the exhaust gas is directly introduced into the ventilation layer of the inner cavity of the sub-frame assembly 7 by using the ventilation inlet 721, thereby optimizing the flow path of the exhaust gas. This design reduces the resistance of the exhaust gas in the pipeline, speeds up the flow of the exhaust gas, and thus improves the treatment efficiency of the exhaust gas.

[0114] In addition, the vehicle design provided by the embodiment of the present application also has a significant effect of reducing noise. The ventilation layer is used as a muffler, which can effectively absorb and reduce the noise generated by exhaust gas emissions, creating a quieter and more comfortable riding environment for drivers and passengers.

[0115] In general, the structural design provided in the embodiments of this application is shown in Figure 2 and Figure 3 It not only simplifies the vehicle structure and improves reliability, but also optimizes the treatment efficiency of combustion exhaust gas and reduces noise pollution, bringing significant improvements to the overall performance and user experience of the vehicle.

[0116] In some examples of this application, see Figure 2 and Figure 3 The vehicle includes an engine assembly 1, and the engine assembly 1 is arranged on the subframe assembly 7; the catalyst assembly 12 includes an air inlet and an air outlet; the air inlet is connected to the engine assembly 1, and is used to receive the combustion exhaust gas from the engine assembly 1; the air outlet is connected to the ventilation inlet 721, and is used to allow the combustion exhaust gas to flow to the ventilation layer to perform noise reduction treatment on the combustion exhaust gas.

[0117] See also Figure 2 and Figure 3 The vehicle is also equipped with an engine assembly 1, and this key component is also placed on the subframe assembly 7.

[0118] The catalyst assembly 12 is an important component for treating combustion exhaust gas, and includes two key interfaces: an air inlet and an air outlet. The air inlet is connected to the engine assembly 1 and is responsible for receiving the combustion exhaust gas generated by the engine assembly 1; and the air outlet is connected to the ventilation inlet 721 on the sub-frame assembly 7 to ensure that the combustion exhaust gas can flow smoothly to the ventilation layer in the inner cavity of the sub-frame assembly 7 for noise reduction treatment.

[0119] In one example, see Figure 2 , the air inlet of the catalyst assembly 12 can be tightly connected to the engine assembly 1 through the clamp 13. This design not only ensures the stability of exhaust gas transmission, but also facilitates later disassembly and maintenance. Similarly, the air outlet of the catalyst assembly 12 and the ventilation inlet 721 of the sub-frame assembly 7 can also be tightly docked through the clamp 13, so that the catalytically treated combustion exhaust gas can smoothly enter the ventilation layer of the inner cavity of the sub-frame assembly 7. In the ventilation layer, the exhaust gas is specially designed with a sound-absorbing structure, which effectively reduces the noise level and improves the ride comfort of the vehicle.

[0120] It should be noted that the connection method between the catalyst assembly 12 and the subframe assembly 7 is not fixed. In addition to the clamp connection in the above example, various methods such as flange connection can be selected according to actual needs to meet the needs of different models and scenarios.

[0121] According to the example provided in this application, not only the exhaust gas treatment process is optimized, but also the performance of the whole vehicle is significantly improved. The integration of the catalyst assembly 12 and the subframe assembly 7 simplifies the exhaust gas transmission path and improves the efficiency of exhaust gas treatment. At the same time, the design of using the inner cavity of the subframe assembly 7 as a muffler greatly reduces the noise level during exhaust gas emission. In addition, the highly modular and integrated characteristics of the design also further improve the reliability and maintenance convenience of the whole vehicle.

[0122] In some examples of this application, see Figure 3 The sub-frame assembly 7 is provided with a ventilation outlet 73, and the ventilation outlet 73 is connected to the ventilation layer for discharging the combustion exhaust gas after the sound-absorbing treatment.

[0123] See also Figure 3 A ventilation outlet 73 is also designed on the sub-frame assembly 7. The ventilation outlet 73 is connected to the ventilation layer of the inner cavity of the sub-frame assembly 7, and combined with the ventilation inlet 721, a complete exhaust gas treatment and emission system is formed.

[0124] Specifically, the combustion exhaust gas treated by the catalyst assembly 12 first enters the ventilation layer of the inner cavity of the subframe assembly 7. In the ventilation layer, the combustion exhaust gas passes through a specific muffler structure to effectively reduce the noise level. Subsequently, the combustion exhaust gas treated by muffler is smoothly discharged through the ventilation outlet 73, completing the entire exhaust gas treatment and emission process.

[0125] It should be noted that the vent outlet 73 may be a tail pipe for discharging the exhaust gas after the noise reduction treatment into the atmosphere.

[0126] According to the example design of the present application, the ventilation outlet 73 cleverly arranged on the sub-frame assembly 7 ensures that the combustion exhaust gas treated by the catalyst assembly 12 and silenced by the ventilation layer can be discharged to the outside smoothly and unimpeded. This design effectively avoids the accumulation of exhaust gas inside the sub-frame assembly 7, thereby ensuring the normal driving of the vehicle. At the same time, the ventilation layer in the inner cavity of the sub-frame assembly 7 is used for silencer treatment, which significantly reduces the noise level during exhaust gas emission. In addition, this design also fully reflects the advantages of integration and modularization, which not only simplifies the vehicle structure, but also improves the maintenance convenience of the whole vehicle, providing a strong guarantee for the long-term use of the vehicle.

[0127] In some examples of the present application, the catalyst assembly 12 includes at least one section of bellows, and the bellows is located between the engine assembly 1 and the subframe assembly 7 .

[0128] The catalyst assembly 12 can be designed to include at least one section of bellows, which is located between the engine assembly 1 and the subframe assembly 7. The main purpose of the existence of this section of bellows is to reduce the impact of the vibration generated by the engine assembly 1 on the subframe assembly 7.

[0129] The bellows has a unique corrugated shape and structure, which makes it flexible and elastic. When the engine assembly 1 is working, it will generate certain vibrations. If these vibrations are not controlled, they may be transmitted to the subframe assembly 7, thereby affecting the stability and comfort of the whole vehicle. The bellows is like a "shock absorber" that can effectively absorb and disperse these vibrations and reduce their impact on the subframe assembly 7.

[0130] Specifically, the bellows has a corrugated structure inside, see Figure 1 , the vibration generated by the engine assembly 1 is converted into the deformation of the corrugation, thereby absorbing and dispersing the vibration. This deformation process not only reduces the transmission of vibration, but also reduces the generation of noise, making the operation of the whole vehicle more stable and quiet.

[0131] In addition, the bellows also has the characteristics of high temperature resistance and corrosion resistance, which enables it to work stably for a long time in the catalyst assembly 12 and is not easily affected by the working environment. At the same time, the installation and connection of the bellows are relatively simple, which is convenient for operation during vehicle manufacturing and maintenance.

[0132] In some examples of this application, see Figure 1 and Figure 6 The vehicle includes a dual motor assembly 2, a steering gear assembly 3, a stabilizer bar assembly 4, a transmission shaft assembly 5 and a lower arm assembly 6; wherein the dual motor assembly 2, the steering gear assembly 3, the stabilizer bar assembly 4 and the lower arm assembly 6 are all arranged on the subframe assembly 7; the transmission shaft assembly 5 is arranged on the engine assembly 1 and the dual motor assembly 2.

[0133] The vehicle provided in the example of the present application is designed to include a plurality of key assembly components, which work together to achieve stable operation of the vehicle. Specifically, these assembly components include, for example, a dual motor assembly 2, a steering gear assembly 3, a stabilizer bar assembly 4, a transmission shaft assembly 5, and a lower swing arm assembly 6, wherein the dual motor assembly 2, the steering gear assembly 3, the stabilizer bar assembly 4, and the lower swing arm assembly 6 are all arranged on the subframe assembly 7, and the transmission shaft assembly 5 is arranged on the engine assembly 1 and the dual motor assembly 2.

[0134] It should be noted that the engine assembly 1 and the dual motor assembly 2 serve as the power source of the vehicle, and are used to provide the required driving force for the vehicle, so that the vehicle can achieve more flexible and efficient power output to meet different driving needs.

[0135] The steering gear assembly 3 is responsible for controlling the steering of the vehicle, ensuring that the vehicle can perform steering operations according to the driver's intention during driving, and providing a stable and precise control experience.

[0136] The stabilizer bar assembly 4 is used to enhance the stability of the vehicle, especially when driving at high speed or turning, and can effectively reduce the roll of the vehicle body and improve driving safety.

[0137] The transmission shaft assembly 5 is responsible for transmitting power from the engine assembly 1 and the dual motor assembly 2 to the wheels, ensuring smooth transmission and efficient use of power.

[0138] The lower arm assembly 6 is an important component of the vehicle suspension system. It connects the wheels and the subframe assembly, is responsible for supporting the vehicle body and buffering the impact from the road surface, and provides a comfortable riding experience.

[0139] The above-mentioned assembly components together constitute the power and control system of the vehicle, ensuring the normal driving and excellent performance of the vehicle. Arranging them all on the subframe assembly 7 not only facilitates the assembly and maintenance of the whole vehicle, but also makes the connection between these components tighter and more stable, further improving the overall performance and reliability of the vehicle. In addition, this design also optimizes the weight distribution of the vehicle and improves the controllability and stability of the vehicle.

[0140] See also Figure 3 and Figure 6 As shown, in order to meet the various functional requirements of the sub-frame assembly 7, a plurality of key mounting points are provided on the outer plate 71 of the sub-frame assembly 7, and these mounting points include, for example: a sub-frame assembly mounting point 713, for fixing the sub-frame assembly 7 to the vehicle; a lower control arm assembly mounting point 714, for ensuring that the lower control arm can be firmly connected; a rear suspension mounting point 715, for installing the rear suspension part of the vehicle powertrain; and a steering gear assembly mounting point 716 and a stabilizer bar assembly mounting point 717, which ensure that the steering and stabilization systems can work accurately and stably.

[0141] The subframe assembly with a special integrated design provided by the present application not only optimizes the cooling and silencing performance of the vehicle, but also improves the structural strength and stability of the entire vehicle, bringing a more comfortable and safe driving experience to the driver.

[0142] The subframe assembly design proposed in the embodiment of the present application integrates a muffler and a cooling structure. Specifically, the inner cavity of the subframe assembly 7 is sealed as a ventilation layer of the muffler, and a water-permeable layer wrapped around the outside of the ventilation layer is provided in the inner cavity, and the water-permeable layer is used to cool the ventilation layer. This integrated design not only optimizes the structure of the subframe assembly 7, but also improves the performance and efficiency of the entire vehicle.

[0143] A ventilation inlet 721 is provided on the sub-frame assembly 7 to connect to the catalyst assembly 12, ensuring that the combustion exhaust gas from the engine assembly 1 can smoothly enter the ventilation layer and finally be discharged into the atmosphere through the tail pipe (ventilation outlet 73). A water inlet 711 and a water outlet 712 are provided on the water permeable layer, and are connected to the heat dissipation pipeline (including the pre-valve water pipe 8, the one-way valve assembly 9, the post-valve water inlet pipe 10 and the water outlet pipe 11) to realize the circulation of the coolant.

[0144] It is worth mentioning that in the solution provided in the embodiment of the present application, the subframe assembly 7 includes a crossbeam, and the muffler is directly integrated in the inner cavity of the crossbeam. This innovative design achieves the goal of lightweighting and significantly reduces costs. At the same time, the utilization rate of the entire vehicle is also improved, providing greater flexibility and convenience for the arrangement of chassis-related structural parts, making the chassis layout more concise and beautiful.

[0145] The above embodiments focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0146] Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are only for illustration, not for limiting the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A subframe, characterized in that: It includes a subframe assembly (7); The sub-frame assembly (7) has an inner cavity, and the inner cavity is divided into a ventilation layer and a water permeable layer; The ventilation layer and the water permeable layer are both closed cavities; The ventilation layer can act as a muffler; The water-permeable layer is at least partially wrapped around the outer side of the ventilation layer, and can be used to provide cooling support for the ventilation layer.

2. The subframe according to claim 1, characterized in that: The subframe assembly (7) comprises an outer plate (71) and an inner plate (72); The cavity enclosed by the inner plate (72) forms the ventilation layer; The outer plate (71) encloses the outer shell of the sub-frame assembly (7); The cavity formed between the outer plate (71) and the inner plate (72) is the water permeable layer, and the water permeable layer is used to be filled with cooling liquid.

3. The subframe according to claim 2, characterized in that: The auxiliary frame assembly (7) is provided with a water inlet (711) and a water outlet (712), respectively, and the water permeable layer is connected to the water inlet (711) and the water outlet (712), respectively; The water inlet (711) and the water outlet (712) are also connected to a heat dissipation pipeline to form a flow loop of the cooling liquid.

4. The subframe according to claim 3, characterized in that: The water inlet (711) is connected to the water inlet pipe (10) behind the valve, and the water outlet (712) is connected to the water outlet pipe (11); The post-valve water inlet pipe (10) is connected to the pre-valve water inlet pipe (8), and a one-way valve assembly (9) is provided at the connection position between the post-valve water inlet pipe (10) and the pre-valve water inlet pipe (8).

5. The subframe according to claim 2, characterized in that: The sub-frame assembly (7) is provided with a ventilation inlet (721), and the ventilation inlet (721) is welded and sealed with the outer plate (71) and the inner plate (72).

6. The subframe according to claim 2, characterized in that: The outer plate (71) and the inner plate (72) are connected via reinforcing ribs.

7. The subframe according to claim 3, characterized in that: A partition is provided between the water inlet (711) and the water outlet (712).

8. The subframe according to claim 3, characterized in that: The water inlet (711) and the water outlet (712) are integrally connected to the outer plate (71).

9. The subframe according to claim 1, characterized in that: A plurality of sound-absorbing panels (74) are arranged at intervals inside the ventilation layer, and the sound-absorbing panels (74) are partitions or filter screens.

10. A vehicle, characterized in that: The vehicle comprises: The subframe as claimed in any one of claims 1 to 9; and A catalyst assembly (12) is arranged on the subframe assembly (7); The sub-frame assembly (7) is provided with a ventilation inlet (721), the ventilation inlet (721) is connected to the ventilation layer, and the ventilation inlet (721) is also connected to the catalyst assembly (12); The ventilation inlet (721) is used to receive the combustion exhaust gas transmitted by the catalyst assembly (12) and guide the combustion exhaust gas into the interior of the ventilation layer.

11. The vehicle according to claim 10, characterized in that The vehicle comprises an engine assembly (1), wherein the engine assembly (1) is arranged on the subframe assembly (7); The catalyst assembly (12) includes an air inlet and an air outlet; The air inlet is connected to the engine assembly (1) and is used to receive combustion exhaust gas from the engine assembly (1); The air outlet is connected to the ventilation inlet (721) and is used to allow the combustion exhaust gas to flow to the ventilation layer so as to perform noise reduction treatment on the combustion exhaust gas.

12. The vehicle according to claim 10, characterized in that The auxiliary frame assembly (7) is provided with a ventilation outlet (73), and the ventilation outlet (73) is connected to the ventilation layer and is used to discharge the combustion exhaust gas after the noise reduction treatment.

13. The vehicle according to claim 11, characterized in that The catalyst assembly (12) comprises at least one section of a bellows, and the bellows is located between the engine assembly (1) and the subframe assembly (7).

14. The vehicle according to any one of claims 10 to 13, characterized in that The vehicle comprises a dual motor assembly (2), a steering gear assembly (3), a stabilizer bar assembly (4), a transmission shaft assembly (5) and a lower swing arm assembly (6); Wherein, the dual motor assembly (2), the steering gear assembly (3), the stabilizer bar assembly (4) and the lower swing arm assembly (6) are all arranged on the subframe assembly (7); The transmission shaft assembly (5) is arranged on the engine assembly (1) and the dual motor assembly (2).

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