Power assembly suspension and vehicle

Abstract

The invention provides a power assembly suspension and a vehicle, the power assembly suspension comprises a shell, a main rubber spring and a hydraulic valve bank, the main rubber spring is arranged in the shell, and a mounting cavity is defined between the main rubber spring and the shell; the hydraulic valve group is arranged in the mounting cavity and at least provided with a first pipeline and a second pipeline, the opening end of the first pipeline is connected with the main rubber spring and defines a first hydraulic cavity, the opening end of the second pipeline is connected with the main rubber spring and defines a second hydraulic cavity, and the first hydraulic cavity and the second hydraulic cavity are both filled with hydraulic oil; the first hydraulic cavity and the second hydraulic cavity are not communicated with each other, the first pipeline can be arranged in an axial shrinkage mode under the extrusion effect of the main rubber spring so as to change the volume of the first hydraulic cavity, and hydraulic oil in the first hydraulic cavity extrudes the cavity wall of the second hydraulic cavity so as to change the volume of the second hydraulic cavity. The technical problem that a power assembly suspension in the prior art cannot meet the requirements of idling vibration isolation and driving support at the same time is solved.

Description

Technical Field

[0001] This invention relates to the technical field of powertrain mounting, and more specifically, to a powertrain mounting and a vehicle. Background Technology

[0002] Powertrain mounts not only support the engine and transmission, but also isolate vibrations transmitted from the powertrain to the vehicle body, ensuring vehicle comfort and stability.

[0003] Under idling conditions, to effectively isolate low-frequency, large-amplitude vibrations, powertrain mounts need to exhibit low stiffness and high damping. Under high-load conditions such as acceleration and braking, to provide sufficient support and prevent large displacement of the powertrain, powertrain mounts need high stiffness and low damping. However, the stiffness and damping characteristics of existing powertrain mounts are fixed, making it impossible to simultaneously meet the requirements of idling vibration isolation and driving support.

[0004] There is currently no effective solution to the technical problem that existing powertrain mounts cannot simultaneously meet the requirements of idling vibration isolation and driving support. Summary of the Invention

[0005] The main objective of this invention is to provide a powertrain mount and vehicle to solve the technical problem that existing powertrain mounts cannot simultaneously meet the requirements of idling vibration isolation and driving support.

[0006] To achieve the above objectives, according to one aspect of the present invention, a powertrain mounting is provided, comprising: a housing, a main rubber spring, and a hydraulic valve assembly. The main rubber spring is disposed within the housing, and a mounting cavity is formed between the main rubber spring and the housing. The hydraulic valve assembly is disposed within the mounting cavity, and the hydraulic valve assembly is provided with at least a first pipe and a second pipe. The open end of the first pipe is connected to the main rubber spring and forms a first hydraulic cavity. The open end of the second pipe is connected to the main rubber spring and forms a second hydraulic cavity. Both the first and second hydraulic cavities are filled with hydraulic oil. The first and second hydraulic cavities are not interconnected. The first pipe is axially contractible under the compression action of the main rubber spring to change the volume of the first hydraulic cavity. The hydraulic oil in the first hydraulic cavity compresses the cavity wall of the second hydraulic cavity to change the volume of the second hydraulic cavity.

[0007] Furthermore, a partition is provided between the first hydraulic chamber and the second hydraulic chamber, and the partition is bendable when squeezed by hydraulic oil.

[0008] Furthermore, the hydraulic valve assembly also includes: a baffle, which is movably disposed within the second pipe, the baffle dividing the second pipe into a first flow segment and a second flow segment, the baffle having a first position for communicating between the first flow segment and the second flow segment, and a second position for cutting off the communication between the first flow segment and the second flow segment; and a valve needle, which is disposed within the second pipe, one end of the valve needle being connected to the baffle, and the other end of the valve needle being connected to the baffle.

[0009] Furthermore, the hydraulic valve assembly also includes: an elastic element disposed in the second pipe, one end of the elastic element being connected to the second pipe, and the other end of the elastic element being connected to the baffle, the elastic element providing a preload force to position the baffle in the second position.

[0010] Furthermore, the main rubber spring includes: a first component segment, which forms an installation cavity with the housing; a second component segment, which is connected to the first end of the first component segment and is arranged at a first angle with the first component segment; and a third component segment, which is connected to the second end of the first component segment and is arranged at a second angle with the first component segment.

[0011] Furthermore, there are two second pipes, with a first pipe located between the two second pipes. The open end of the first pipe is connected to the first component section, the open end of one of the second pipes is connected to the second component section, and the open end of the other second pipe is connected to the third component section.

[0012] Furthermore, the first pipe has a first flexible structure at the end near the main rubber spring, and / or the second pipe has a second flexible structure at the end near the main rubber spring.

[0013] Furthermore, the first flexible structure is a corrugated pipe, and / or the second flexible structure is a corrugated pipe.

[0014] Furthermore, the housing is provided with a first mounting structure, which is arranged opposite to the main rubber spring along the extension and retraction direction of the first pipe.

[0015] According to another aspect of the invention, a vehicle is provided, the vehicle including the powertrain mount described above.

[0016] Applying the technical solution of this invention, the main rubber spring is disposed within the housing, and a mounting cavity is formed between the main rubber spring and the housing. A hydraulic valve assembly is disposed within the mounting cavity. The hydraulic valve assembly has at least a first pipe and a second pipe. The first pipe and the main rubber spring form a first hydraulic cavity, and the second pipe and the main rubber spring form a second hydraulic cavity. Under the compression of the main rubber spring, the first pipe axially contracts, reducing the volume of the first hydraulic cavity, increasing the oil pressure within the first hydraulic cavity, increasing the stiffness of the hydraulic valve assembly, and decreasing the damping of the hydraulic valve assembly. The hydraulic oil within the first hydraulic cavity compresses the cavity wall of the second hydraulic cavity, reducing the volume of the second hydraulic cavity, increasing the oil pressure within the second hydraulic cavity, increasing the stiffness of the hydraulic valve assembly, and decreasing the damping of the hydraulic valve assembly. In other words, the stiffness and damping of the hydraulic valve assembly can be adjusted according to the load size of the powertrain mount, thereby achieving the adjustment of the stiffness and damping of the powertrain mount. The powertrain mount in the above solution can adjust its stiffness and damping according to the load size, so as to realize the functions of idle vibration isolation and driving support, and solve the technical problem that the powertrain mount in the prior art cannot simultaneously meet the needs of idle vibration isolation and driving support. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0018] Figure 1 A schematic diagram of the internal structure of the powertrain mount in this invention is shown;

[0019] Figure 2 A schematic diagram of the hydraulic valve assembly in the first embodiment of the present invention is shown;

[0020] Figure 3 A schematic diagram of the hydraulic valve assembly in the second embodiment of the present invention is shown;

[0021] Figure 4 A schematic diagram of the external structure of the powertrain mount in this invention is shown.

[0022] The above figures include the following reference numerals:

[0023] 1. Shell;

[0024] 11. First mounting structure; 12. Second mounting structure; 13. Shell body; 14. Shell cover;

[0025] 2. Main rubber spring;

[0026] 21. First paragraph; 22. Second paragraph; 23. Third paragraph;

[0027] 3. Hydraulic valve assembly;

[0028] 31. Valve seat; 311. First pipe; 3111. Baffle; 3112. First flexible structure; 312. Second pipe; 3121. First flow section; 3122. Second flow section; 3123. Second flexible structure; 32. Baffle; 33. Valve needle; 34. Elastic element;

[0029] 4. First hydraulic chamber;

[0030] 5. Second hydraulic chamber.

[0031] 6. Install cavity. Detailed Implementation

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0033] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0034] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0035] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0036] Combination Figures 1 to 4 As shown, according to a specific embodiment of this application, a powertrain mount is provided.

[0037] Specifically, the powertrain mounting includes: a housing 1, a main rubber spring 2, and a hydraulic valve assembly 3. The main rubber spring 2 is located inside the housing 1, and a mounting cavity 6 is formed between the main rubber spring 2 and the housing 1. The hydraulic valve assembly 3 is located inside the mounting cavity 6 and has at least a first pipe 311 and a second pipe 312. The open end of the first pipe 311 is connected to the main rubber spring 2 and forms a first hydraulic cavity 4. The open end of the second pipe 312 is connected to the main rubber spring 2 and forms a second hydraulic cavity 5. Both the first hydraulic cavity 4 and the second hydraulic cavity 5 are filled with hydraulic oil. The first hydraulic cavity 4 and the second hydraulic cavity 5 are not interconnected. The first pipe 311 is axially contractible under the compression of the main rubber spring 2 to change the volume of the first hydraulic cavity 4, and the hydraulic oil in the first hydraulic cavity 4 compresses the cavity wall of the second hydraulic cavity 5 to change the volume of the second hydraulic cavity 5.

[0038] In the embodiments of this application, the main rubber spring 2 is disposed within the housing 1, and the main rubber spring 2 and the housing 1 form an installation cavity 6. The hydraulic valve assembly 3 is disposed within the installation cavity 6, and the hydraulic valve assembly 3 is provided with at least a first pipe 311 and a second pipe 312. The first pipe 311 and the main rubber spring 2 form a first hydraulic cavity 4, and the second pipe 312 and the main rubber spring 2 form a second hydraulic cavity 5. Under the compression action of the main rubber spring 2, the first pipe 311 axially contracts, reducing the volume of the first hydraulic cavity 4. When the load on the powertrain mount is small, the increased oil pressure in the first hydraulic chamber 4 increases the stiffness of the hydraulic valve assembly 3 and decreases its damping. Simultaneously, the hydraulic oil in the first hydraulic chamber 4 compresses the wall of the second hydraulic chamber 5, reducing its volume. This increases the oil pressure within the second hydraulic chamber 5, further increasing the stiffness and damping of the hydraulic valve assembly 3. In other words, the stiffness and damping of the hydraulic valve assembly 3 can be adjusted according to the load on the powertrain mount, thereby adjusting the stiffness and damping of the powertrain mount itself. The powertrain mount in this solution can adjust its stiffness and damping according to the load, achieving both idle vibration isolation and driving support functions. This solves the technical problem in existing powertrain mounts that cannot simultaneously meet the requirements of idle vibration isolation and driving support.

[0039] In one exemplary embodiment of this application, when the first pipe 311 is in its initial state, the hydraulic oil in the first hydraulic chamber 4 is not completely filled, and the hydraulic oil in the second hydraulic chamber 5 is not completely filled. Under low load conditions, such as idling, the powertrain load is small, the compression of the main rubber spring 2 is small, the deformation of the first pipe 311 is small, the hydraulic oil in the first hydraulic chamber 4 is still not completely filled, and the second hydraulic chamber 5 is not deformable under the action of the hydraulic oil. At this time, the damping of the powertrain mount is large, which can effectively isolate low-frequency, large-amplitude idling vibrations. Under high load conditions, such as acceleration or braking, the load on the powertrain increases, the compression of the main rubber spring 2 is large, the deformation of the first pipe 311 is large, the volume of the first hydraulic chamber 4 is significantly reduced, and the hydraulic oil in the first hydraulic chamber 4 is in a full state. The second hydraulic chamber 5 is deformed under the action of the hydraulic oil, so that the volume of the second hydraulic chamber 5 is significantly reduced, and the hydraulic oil in the first hydraulic chamber 4 is in a full state. At this time, the stiffness of the powertrain suspension increases, thereby providing strong support for the powertrain and effectively suppressing large displacement of the powertrain.

[0040] Furthermore, a partition 3111 is provided between the first hydraulic chamber 4 and the second hydraulic chamber 5, and the partition 3111 is bendable when squeezed by hydraulic oil.

[0041] In the embodiments of this application, the partition 3111 can bend and deform when squeezed by hydraulic oil to adjust the second hydraulic chamber 5 and its volume. The partition 3111 can return to its initial state after the squeezing force disappears. That is, the partition 3111 can deform rapidly under force, thereby enabling the powertrain mount to respond quickly under different load conditions and improving the dynamic performance of the powertrain mount.

[0042] like Figure 1 , Figure 2 As shown, the first pipe 311 and the second pipe 312 are connected to form the valve seat 31 of the hydraulic valve assembly 3. A partition 3111 is disposed between the first pipe 311 and the second pipe 312 so that the first pipe 311 and the second pipe 312 are not interconnected, that is, the first hydraulic chamber 4 and the second hydraulic chamber 5 are not interconnected. The partition 3111 can be made of a polymer elastomer or a fiber-reinforced rubber composite material to ensure that the partition 3111 can deform rapidly under hydraulic pressure and quickly return to its original state after the pressure is released, thereby improving the powertrain mounting response speed.

[0043] Furthermore, the hydraulic valve assembly 3 also includes a baffle 32 and a valve needle 33. The baffle 32 is movably disposed within the second pipe 312, dividing the second pipe 312 into a first flow section 3121 and a second flow section 3122. The baffle 32 has a first position that connects the first flow section 3121 and the second flow section 3122, and a second position that disconnects the connection between the first flow section 3121 and the second flow section 3122. The valve needle 33 is disposed within the second pipe 312, with one end connected to a partition 3111 and the other end connected to the baffle 32.

[0044] In the embodiments of this application, the baffle 32 divides the second pipe 312 into a first flow section 3121 and a second flow section 3122. The valve needle 33, under the force of the partition 3111, pushes the baffle 32 to connect the first flow section 3121 and the second flow section 3122, allowing hydraulic oil in the first flow section 3121 to flow into the second flow section 3122, thereby filling the second hydraulic chamber 5 and further improving the rigidity of the powertrain mount. After the force on the valve needle 33 disappears, the valve needle 33 pulls the baffle 32 back to the second position, and simultaneously, some of the oil in the second flow section 3122 flows back into the first flow section 3121. The baffle 32 has multiple first positions, and the valve needle 33 can adjust the position of the baffle 32 according to the load size to adapt to different load conditions (such as transient high load and continuous low load), thereby achieving adaptive adjustment of the powertrain mount.

[0045] like Figure 2 , Figure 3 As shown, baffle 32 is rotatably connected to the bottom of the second pipe 312, dividing the second pipe 312 into a first flow segment 3121 and a second flow segment 3122. Baffle 32 has a first position that connects the first flow segment 3121 and the second flow segment 3122, and a second position that cuts off the connection between the first flow segment 3121 and the second flow segment 3122. One end of valve needle 33 is connected to the center of partition 3111, and the other end of valve needle 33 is connected to the center of baffle 32. Under the force of partition 3111, valve needle 33 drives baffle 32 to switch between the first position and the second position.

[0046] Preferably, the hydraulic valve assembly 3 further includes an elastic element 34, which is disposed in the second pipe 312. One end of the elastic element 34 is connected to the second pipe 312, and the other end of the elastic element 34 is connected to the baffle 32. The elastic element 34 provides a preload force to position the baffle 32 in the second position.

[0047] In the embodiments of this application, the elastic element 34 provides a certain self-resetting capability. That is, when the load on the powertrain decreases, the pressure in the hydraulic chamber drops, and the preload of the elastic element 34 will cause the baffle 32 to automatically return to the second position, thereby improving the rapid response performance of the powertrain mount. The elastic element 34 increases the stability of the mount system, prevents the baffle 32 from malfunctioning due to slight external vibrations or pressure fluctuations, and improves the mount's resistance to load changes.

[0048] like Figure 2 , Figure 3 As shown, the elastic element 34 is a spring. The elastic element 34 is located in the second flow section 3122. One end of the elastic element 34 is connected to the bottom of the second pipe 312, and the other end of the elastic element 34 is connected to the baffle 32.

[0049] In an exemplary embodiment of this application, under low load conditions, such as idling, the powertrain load is small, the compression of the main rubber spring 2 is small, the deformation of the first pipe 311 is small, the hydraulic oil in the first hydraulic chamber 4 is still not full, and the pressure on the partition 3111 is insufficient to overcome the preload of the elastic element 34. At this time, the volume of the second hydraulic chamber 5 does not change, the hydraulic oil in the second hydraulic chamber 5 is still not full, and the damping of the powertrain suspension is large, which can effectively isolate low-frequency, large-amplitude idling vibration. Under high load conditions, such as acceleration or braking, the powertrain load increases, the compression of the main rubber spring 2 is large, the deformation of the first pipe 311 is large, the volume of the first hydraulic chamber 4 is significantly reduced, and the hydraulic oil in the first hydraulic chamber 4 is full. The pressure on the baffle 3111 is sufficient to overcome the preload of the elastic element 34, pushing the baffle 32 to move to the second position. At this time, the volume of the second hydraulic chamber 5 is significantly reduced, and the hydraulic oil in the first flow section 3121 flows into the second flow section 3122, thereby filling the second hydraulic chamber 5. At this time, the stiffness of the powertrain suspension increases, thereby providing strong support for the powertrain and effectively suppressing large displacement of the powertrain.

[0050] Furthermore, the main rubber spring 2 includes: a first component segment 21, a second component segment 22, and a third component segment 23. The first component segment 21 forms a mounting cavity 6 with the housing 1. The second component segment 22 is connected to the first end of the first component segment 21 and is arranged at a first angle with the first component segment 21. The third component segment 23 is connected to the second end of the first component segment 21 and is arranged at a second angle with the first component segment 21.

[0051] In the embodiments of this application, the second component segment 22 is set at a first angle to the first component segment 21, and the third component segment 23 is set at a second angle to the first component segment 21, so that the suspension can provide load support and vibration isolation in multiple directions, effectively reducing the multi-dimensional vibration transmission of the powertrain to the vehicle body. At the same time, the segmented design of the main rubber spring 2 allows the suspension system to respond and adjust simultaneously in multiple dimensions, thereby achieving more comprehensive and precise support and vibration isolation for the powertrain under various operating conditions.

[0052] like Figure 1 As shown, the main rubber spring 2 includes a first component segment 21, a second component segment 22, and a third component segment 23. The first component segment 21 is horizontally arranged, forming a mounting cavity 6 between the first component segment 21 and the housing 1. The second component segment 22 is connected to the first end of the first component segment 21 at an obtuse angle to the first component segment 21. The third component segment 23 is connected to the second end of the first component segment 21 at an obtuse angle to the first component segment 21. The first component segment 21, the second component segment 22, and the third component segment 23 are arranged to form a V-shaped structure, so that the main rubber spring 2 can absorb and isolate the vibration of the powertrain from multiple dimensions.

[0053] Furthermore, there are two second pipes 312, and a first pipe 311 is disposed between the two second pipes 312. The open end of the first pipe 311 is connected to the first component section 21, the open end of one of the second pipes 312 is connected to the second component section 22, and the open end of the other second pipe 312 is connected to the third component section 23.

[0054] In the embodiments of this application, each component of the main rubber spring 2 is connected to each pipe of the hydraulic valve group 3 in a corresponding manner to form a corresponding hydraulic chamber below each component of the main rubber spring 2. The oil pressure in each hydraulic chamber can change dynamically under the load, that is, the stiffness performance and vibration absorption performance of the suspension system can be adjusted from multiple dimensions, thereby achieving a more precise load adaptability and vibration isolation effect.

[0055] like Figure 1 , Figure 2 , Figure 3As shown, the valve seat 31 is provided with a second pipe 312 and a first pipe 311. The first pipe 311 is located in the middle of the valve seat 31, with its open end facing upwards and connected to the first component section 21 of the main rubber spring 2. There are two second pipes 312. One second pipe 312 is located on the left side of the valve seat 31, with a portion of it tilted upwards to the left and connected to the second component section 22 of the main rubber spring 2. The other second pipe 312 is located on the right side of the valve seat 31, with a portion of it tilted upwards to the right and connected to the third component section 23 of the main rubber spring 2. Each second pipe 312 is separated from the first pipe 311 by a partition 3111.

[0056] Furthermore, the first pipe 311 has a first flexible structure 3112 near the main rubber spring 2, and / or the second pipe 312 has a second flexible structure 3123 near the main rubber spring 2.

[0057] In the embodiments of this application, the flexible structure prevents the pipe from being damaged due to compression deformation; the flexible structure can provide a certain degree of installation tolerance, making the connection between the pipe and the main rubber spring 2 more flexible, simplifying the installation process and reducing the requirements for precise alignment; at the same time, the flexible structure can act as a vibration isolation element, absorbing and attenuating the vibration energy transmitted from the powertrain to the suspension system, further improving the vibration isolation effect of the system.

[0058] like Figure 2 , Figure 3 As shown, the first pipe 311 has a first flexible structure 3112 near the main rubber spring 2, and the second pipe 312 has a second flexible structure 3123 near the main rubber spring 2.

[0059] Specifically, the first flexible structure 3112 is a bellows, and / or the second flexible structure 3123 is a bellows. The bellows can deform along the axial direction of the pipe to quickly respond to changes in the powertrain load.

[0060] like Figure 2 , Figure 3 As shown, the first flexible structure 3112 formed on the first pipe 311 is a corrugated pipe, and the second flexible structure 3123 formed on the second pipe 312 is a corrugated pipe, with the corrugated pipes extending along the axial direction of each pipe.

[0061] Furthermore, such as Figure 4 As shown, the housing 1 is provided with a first mounting structure 11, which is arranged opposite to the main rubber spring 2 along the extension and retraction direction of the first pipe 311. The first mounting structure 11 is provided with multiple first mounting holes, through which it connects to the powertrain.

[0062] In the embodiments of this application, the first mounting structure 11 is arranged opposite to the main rubber spring 2 along the extension and retraction direction of the first pipe 311, so that the load of the powertrain is transmitted along the extension and retraction direction of the first pipe 311, thereby reducing energy loss and efficiency loss and improving the dynamic response performance of the system.

[0063] Furthermore, such as Figure 4 As shown, the housing 1 is provided with a second mounting structure 12, which is located at the bottom of the housing 1 and is used to connect and fix the powertrain mount. The second mounting structure 12 has multiple second mounting holes, allowing the powertrain mount to be connected to external equipment through the first mounting holes.

[0064] Furthermore, such as Figure 4 As shown, the housing 1 includes a housing body 13 and a housing cover 14. The housing body 13 is provided with a receiving cavity for accommodating the main rubber spring 2, and the housing cover 14 is detachably connected to the opening of the receiving cavity.

[0065] The first mounting structure 11 is positioned opposite the main rubber spring 2 along the extension and retraction direction of the first pipe 311.

[0066] According to another specific embodiment of this application, a vehicle is provided, the vehicle including the powertrain mount of the above embodiment.

[0067] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0068] 1. The powertrain mounts use oil pressure changes as the drive signal, resulting in a rapid and sensitive response.

[0069] 2. The hydraulic valve assembly 3 adopts a linkage structure of baffle 3111, valve needle 33 and baffle 32, without inclined surfaces, sliders and other sliding friction parts, which has high reliability, long service life and low working noise.

[0070] 3. The hydraulic valve assembly 3 has a compact structure and can be fully integrated inside the suspension without changing the external structure, making it easy to install and arrange.

[0071] 4. The powertrain mounting adopts a purely mechanical structure, requiring no electronic control components, resulting in low cost and high reliability.

[0072] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0073] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this invention.

[0074] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0075] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A powertrain mounting, characterized in that, include: Shell (1); The main rubber spring (2) is disposed inside the housing (1), and the main rubber spring (2) and the housing (1) form an installation cavity (6). Hydraulic valve assembly (3) is located in the mounting cavity (6). The hydraulic valve assembly (3) is provided with at least a first pipe (311) and a second pipe (312). The open end of the first pipe (311) is connected to the main rubber spring (2) and forms a first hydraulic cavity (4). The open end of the second pipe (312) is connected to the main rubber spring (2) and forms a second hydraulic cavity (5). Both the first hydraulic cavity (4) and the second hydraulic cavity (5) are filled with hydraulic oil. The first hydraulic cavity (4) and the second hydraulic cavity (5) are not connected to each other. The first pipe (311) can be axially contracted under the squeezing action of the main rubber spring (2) to change the volume of the first hydraulic cavity (4). The hydraulic oil in the first hydraulic cavity (4) squeezes the cavity wall of the second hydraulic cavity (5) to change the volume of the second hydraulic cavity (5).

2. The powertrain mount according to claim 1, characterized in that, A partition (3111) is provided between the first hydraulic chamber (4) and the second hydraulic chamber (5), and the partition (3111) is bendable when squeezed by hydraulic oil.

3. The powertrain mount according to claim 2, characterized in that, The hydraulic valve assembly (3) also includes: A baffle (32) is movably disposed within the second pipe (312), the baffle (32) dividing the second pipe (312) into a first flow segment (3121) and a second flow segment (3122), the baffle (32) having a first position for connecting the first flow segment (3121) and the second flow segment (3122), and a second position for cutting off the connection between the first flow segment (3121) and the second flow segment (3122); A valve needle (33) is located inside the second pipe (312). One end of the valve needle (33) is connected to the partition plate (3111), and the other end of the valve needle (33) is connected to the baffle plate (32).

4. The powertrain mount according to claim 3, characterized in that, The hydraulic valve assembly (3) also includes: An elastic element (34) is disposed inside the second pipe (312), one end of the elastic element (34) is connected to the second pipe (312), and the other end of the elastic element (34) is connected to the baffle (32). The elastic element (34) provides a preload force to position the baffle (32) in the second position.

5. The powertrain mount according to any one of claims 1-4, characterized in that, The main rubber spring (2) includes: The first component segment (21) forms the mounting cavity (6) between the first component segment (21) and the housing (1). The second component segment (22) is connected to the first end of the first component segment (21), and the second component segment (22) and the first component segment (21) are set at a first included angle; The third component segment (23) is connected to the second end of the first component segment (21), and the third component segment (23) is set at a second included angle to the first component segment (21).

6. The powertrain mount according to claim 5, characterized in that, There are two second pipes (312), and the first pipe (311) is located between the two second pipes (312). The open end of the first pipe (311) is connected to the first component section (21). The open end of one of the second pipes (312) is connected to the second component section (22), and the open end of the other second pipe (312) is connected to the third component section (23).

7. The powertrain mount according to claim 1, characterized in that, The first pipe (311) has a first flexible structure (3112) at one end near the main rubber spring (2), and / or the second pipe (312) has a second flexible structure (3123) at one end near the main rubber spring (2).

8. The powertrain mount according to claim 7, characterized in that, The first flexible structure (3112) is a corrugated pipe, and / or the second flexible structure (3123) is a corrugated pipe.

9. The powertrain mount according to claim 1, characterized in that, The housing (1) is provided with a first mounting structure (11), which is arranged opposite to the main rubber spring (2) along the extension and retraction direction of the first pipe (311).

10. A vehicle, characterized in that, The vehicle includes the powertrain mount as described in any one of claims 1-9.

Images