Suspension device and vehicle

Abstract

The utility model discloses a kind of suspension device and vehicle, suspension device includes shell, inner core, first elastic element and second elastic element, first elastic element and second elastic element are symmetrically installed in elastic element installation cavity along first axis, first elastic element is relatively first plane inclined arrangement, and the extension direction of the lower edge of second contact surface forms first inclination angle with second axis, second elastic element is relatively first plane inclined arrangement, and the extension direction of the lower edge of fourth contact surface forms second inclination angle with second axis, the angle range of first inclination angle is 20~30 °, the angle range of second inclination angle is 20~30 °, the utility model can promote the rigidity of suspension device in car width direction.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to suspension devices and vehicles. Background Technology

[0002] With the development of automotive technology and the increasing demands of users for overall vehicle performance, the driving comfort of heavy-duty trucks is constantly evolving towards that of passenger cars. The suspension system is a key component connecting vibrating elements (such as the engine and transmission) to the vehicle. A good suspension system can effectively balance and isolate vibrations, which not only helps reduce vehicle vibration and improve comfort but also enhances the reliability of related system components throughout the vehicle.

[0003] Suspension systems require excellent vibration damping performance as well as sufficient rigidity. Currently, suspension products on the market typically use rubber designs to enhance rigidity in the height and length directions of the vehicle body. However, this approach results in lower rigidity in the width direction. During vehicle start-up, engine shutdown, and idling, the powertrain vibrates significantly in this direction, leading to excessive powertrain displacement and a poor user experience. Utility Model Content

[0004] The purpose of this invention is to solve the problems of low stiffness and excessive vibration in the powertrain along the vehicle body width direction. This invention provides a suspension device that can improve the stiffness of the suspension device along the vehicle body width direction.

[0005] To solve the above-mentioned technical problems, the present invention discloses a suspension device, which includes a housing, the housing including an elastic element mounting cavity, the elastic element mounting cavity including a first wall and a second wall disposed opposite to each other;

[0006] A first elastic element and a second elastic element are symmetrically mounted in the elastic element mounting cavity along a first axis, the extension direction of the first axis being the vehicle height direction;

[0007] The first elastic element includes a first contact surface and a second contact surface. The first contact surface abuts against the first wall, and the second contact surface abuts against the second wall. The first elastic element is inclined relative to the first plane, and the extension direction of the lower edge of the second contact surface forms a first angle with the second axis. The second axis is perpendicular to both the third axis and the first axis. Both the second axis and the third axis are located in the first plane. The extension direction of the second axis is the vehicle width direction, and the extension direction of the third axis is the vehicle length direction.

[0008] The second elastic element includes a third contact surface and a fourth contact surface. The third contact surface abuts against the first wall, and the fourth contact surface abuts against the second wall. The second elastic element is inclined relative to the first plane, and the extending direction of the lower edge of the fourth contact surface forms a second inclination angle with the second axis.

[0009] The first tilt angle has an angle range of 20° to 30°, and the second tilt angle has an angle range of 20° to 30°.

[0010] Using the above technical solution, the first elastic element has an inclination angle of 20° to 30° with the first plane (e.g., the horizontal plane) in the vehicle width direction. That is, the first elastic element rotates around the third axis by an angle of 20° to 30°. Therefore, when the product is subjected to a downward pressure generated by the vibration element in the first axis direction, that is, when the product is subjected to an external load and the product vibrates in the vehicle width direction, the first elastic element generates a compression component in the vehicle width direction because of the inclination angle in the vehicle width direction, which can effectively improve the stiffness in the vehicle width direction.

[0011] Similarly, the second elastic element has an inclination angle of 20° to 30° with the first plane (e.g., the horizontal plane) in the vehicle width direction. That is, the second elastic element rotates around the third axis by an angle of 20° to 30°. Therefore, when the product is subjected to a downward pressure generated by the vibration element in the first axis direction, that is, when the product is subjected to an external load and the product vibrates in the vehicle width direction, the second elastic element generates a compression component in the vehicle width direction due to the inclination angle in the vehicle width direction, which can effectively improve the stiffness in the vehicle width direction.

[0012] According to another specific embodiment of the present invention, the first tilt angle is the same as the second tilt angle.

[0013] By adopting the above scheme, since the first tilt angle and the second tilt angle are the same, the resistance generated by the first elastic element and the second elastic element when subjected to vibration in the same direction is consistent in magnitude and direction, which can ensure the balance of the vibration element.

[0014] According to another specific embodiment of the present invention, the second wall includes a first support portion and a second support portion. The first support portion and the second support portion are symmetrically arranged along the first axis. The first support portion abuts against the second contact surface, and the second support portion abuts against the fourth contact surface. The first support portion and the second support portion are respectively inclined relative to the first plane. The extension direction of the lower edge of the first support portion forms a third inclination angle relative to the second axis, and the extension direction of the lower edge of the second support portion forms a fourth inclination angle relative to the second axis. The third inclination angle and the fourth inclination angle are consistent with the first inclination angle.

[0015] Using the above technical solution, the first elastic element and the second elastic element can form an active space by surrounding the first support part, the second support part and the first wall. The active space provides a certain buffer area. When subjected to external vibration and impact, the first elastic element and the second elastic element can undergo elastic deformation along the first axis, the second axis and the third axis in this active space to absorb and dissipate vibration energy, thereby effectively reducing the vibration amplitude transmitted by the vibration element to the shell and the connected parts, and improving the overall shock absorption effect.

[0016] According to another specific embodiment of the present invention, the first elastic element and the second elastic element are rectangular structures, the first contact surface and the second contact surface are arranged parallel to each other, and the third contact surface and the fourth contact surface are arranged parallel to each other.

[0017] Using the above technical solution, when the vibration element generates a downward pressure in the first axial direction and vibrates in the vehicle width direction, the first elastic element and the second elastic element generate resistance in the first axial direction, the second axial direction, and the third axial direction by being tilted relative to the first plane and forming an angle with the second axial direction, thereby making the suspension device have a certain stiffness in different directions of the vehicle.

[0018] According to another specific embodiment of the present invention, the first elastic element and the second elastic element are respectively provided with a first steel plate and a second steel plate, the outer contour of the first steel plate protruding from the first elastic element, and the outer contour of the second steel plate protruding from the outer contour of the second elastic element.

[0019] By adopting the above technical solution, the steel plate can increase the rigidity of the first elastic element and the second elastic element, so that when the first elastic element and the second elastic element are subjected to external vibration and impact, the free deformation of the first elastic element and the second elastic element is restricted, the rigidity of the first elastic element and the second elastic element is increased, thereby reducing the vibration amplitude transmitted by the vibration element to the housing and the connected parts (such as the vehicle frame), and improving the overall shock absorption effect.

[0020] According to another specific embodiment of the present invention, it further includes a first metal plate and a second metal plate, wherein the first metal plate is disposed on the second contact surface and abuts against the first supporting portion, and the second metal plate is disposed on the fourth contact surface and abuts against the second supporting portion.

[0021] According to another specific embodiment of the present invention, the first metal plate and the second metal plate extend along the second axis respectively, and the ends are respectively provided with a first bendable straight plate and a second bendable straight plate;

[0022] The housing is provided with a back plate, the back plate is provided with a first through groove and a second through groove, the first bendable straight plate passes through the first through groove and bends towards the back plate and fits against the back plate, the second bendable straight plate passes through the second through groove and bends towards the back plate and fits against the back plate.

[0023] By adopting the above technical solution, the first elastic element is attached to the first support part through the first metal plate, and the second elastic element is attached to the second support part through the second metal plate. This solves the problem that the elastic element may fall off due to insufficient friction when it directly contacts the support part. The first bendable straight plate passes through the first through groove and bends towards the back plate, attaching to the back plate. The second bendable straight plate passes through the second through groove and bends towards the back plate, attaching to the back plate. This effectively fixes the positions of the first and second elastic elements and reduces the possibility of them falling off due to external vibration.

[0024] According to another specific embodiment of the present invention, it further includes an inner core and an inner core mounting cavity; the inner core mounting cavity is disposed above the elastic element mounting cavity, the first wall is the cavity wall of the inner core mounting cavity, the inner core mounting cavity has a rear wall, the rear wall has a protrusion, the inner core mounting cavity also has a first opening in the second axial direction, the first opening is disposed opposite to the rear wall, and the inner core mounting cavity has a second opening in the first axial direction; the inner core enters the inner core mounting cavity through the first opening, the inner core has a support platform, the support platform is used to connect with the vibration element, the support platform is located at the second opening, the inner core has a recess along the second axial direction, the recess and the protrusion are in concave-convex fit.

[0025] Using the above technical solution, the inner core is assembled into the inner core mounting cavity through the first opening, and the inner core has a concave part that cooperates with the convex part of the inner core mounting cavity for fixation, which enhances the stability of the inner core and prevents the inner core from undergoing relative displacement along the first axis, second axis, or third axis relative to the inner core mounting cavity when subjected to external loads. Moreover, the assembly through the concave-convex fit can reduce space occupation compared with traditional fastening methods, such as bolt fastening. The inner core fixes the vibration element to the support platform at the second opening. The support platform is used to provide a reference surface to ensure that the vibration element is correctly positioned during assembly. When subjected to external loads, the support platform can withstand all loads, reducing the vibration amplitude transmitted by the vibration element to the elastic element.

[0026] According to another specific embodiment of the present invention, along the first axis direction, the top of the back plate is provided with a plurality of first mounting points, and the bottom of the back plate is provided with a plurality of second mounting points; the plurality of first mounting points and the plurality of second mounting points are respectively spaced apart along the third axis direction, and along the first axis direction, the plurality of first mounting points are higher than the inner core mounting cavity, and the plurality of first mounting points and the plurality of second mounting points are respectively used to connect with the vehicle frame.

[0027] By adopting the above technical solution, compared with fixed connection through connectors, setting multiple mounting points directly on the back plate can optimize space utilization. Furthermore, the spaced arrangement of multiple mounting points enhances the load-bearing capacity of the shell. The multiple mounting points are rigidly connected to the vehicle frame, thereby increasing the stability of the vibration element.

[0028] The present invention also discloses a vehicle, which includes at least the suspension device in any of the above embodiments, comprising a vehicle frame and a vibration element, wherein the vehicle frame is connected to a first mounting point and a second mounting point of the suspension device, and the vibration element is connected to the inner core of the suspension device.

[0029] By adopting the above technical solution, the vibration element is connected to the vehicle frame through the suspension device, and the vibration element is fixed on the vehicle frame. Furthermore, under the conditions of vehicle start-up, engine shutdown and idling, the vibration damping effect of the elastic element in the vehicle width direction is enhanced, effectively reducing the vibration intensity of the vehicle body and enhancing the user experience. Attached Figure Description

[0030] Figure 1 This illustration shows a schematic diagram of the arrangement of the elastic element in a suspension device according to the present application, viewed from the Y-direction along the vehicle length.

[0031] Figure 2 This paper shows a schematic diagram of the arrangement of the elastic element in a suspension device according to the present application, viewed from the perspective of the vehicle length X direction;

[0032] Figure 3A three-dimensional view of the suspension device of this utility model is shown. Figure 1 ;

[0033] Figure 4 A three-dimensional view of the suspension device of this utility model is shown. Figure 2 ;

[0034] Figure 5 An exploded view of the suspension device of this utility model is shown;

[0035] Figure 6 The front view of the suspension device according to an embodiment of this application is shown along the Y direction of the vehicle width. Figure 1 ;

[0036] Figure 7 The front view of the suspension device according to an embodiment of this application is shown along the Y direction of the vehicle width. Figure 2 ;

[0037] Figure 8 A schematic diagram of the first axis, the second axis, and the third axis is shown;

[0038] Figure 9 A side view of the suspension device of this utility model is shown. Figure 1 ;

[0039] Figure 10 A side view of the suspension device of this utility model is shown. Figure 2 ;

[0040] Figure 11 Show Figure 7 A cross-sectional view of the suspension device shown along the AA direction;

[0041] Figure 12 Show Figure 7 The suspension device shown is a cross-sectional view along the BB direction. Detailed Implementation

[0042] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0043] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0044] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0045] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0046] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0047] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0048] Suspension devices are used to fix vibrating elements to the vehicle frame and absorb the vibrations generated by the vibrating elements during operation, thereby reducing the vibrations and noise transmitted into the vehicle and improving the overall vehicle safety. Suspension devices typically consist of a housing, an inner core, and an elastic element. The housing is fixed to the vehicle frame, and the inner core and elastic element are installed within the housing. The inner core is used to fix the vibrating element, and the elastic element is used to achieve the damping effect. However, in some existing embodiments, the arrangement of the elastic element results in poor damping performance in the vehicle width direction.

[0049] In some implementations, reference Figure 1 , Figure 1 The diagram shows the arrangement of the elastic element from the perspective of viewing along the vehicle width Y direction. The elastic element 1 is placed at an angle on the first plane W1. When the suspension device is subjected to downward pressure along the vehicle height Z direction, the compression of the elastic element is only distributed in the vehicle length X direction and the vehicle height Z direction.

[0050] refer to Figure 2 , Figure 2 The diagram shows the arrangement of the elastic element from the perspective of the vehicle length X direction. The elastic element 1 has no tilt angle along the vehicle width Y direction. That is to say, the lower edge 11 of the elastic element 1 is parallel to the first plane W1. When the suspension device is subjected to downward pressure along the vehicle height Z direction, there is no compression in the vehicle width Y direction, which results in the elastic element 1 having low stiffness and poor vibration reduction effect.

[0051] Therefore, this application provides a suspension device for use in vehicles, such as heavy trucks, commercial vehicles, and passenger cars. The elastic element of the suspension device has an angle around the vehicle length X direction, which enhances the rigidity of the elastic element in the vehicle width Y direction, thereby enhancing the vibration reduction effect in the vehicle width Y direction.

[0052] Specifically, refer to Figure 3 , Figure 3 A three-dimensional representation of the suspension device of this application is shown. Figure 1 The suspension device 100 of this application embodiment includes a housing 200, an inner core 300, a first elastic element 400 and a second elastic element 500, wherein the housing 200 includes an inner core mounting cavity 210 and an elastic element mounting cavity 220.

[0053] The suspension device 100 is connected to the vehicle frame via the housing 200, the inner core 300 is fixed in the inner core mounting cavity 210, the first elastic element 400 and the second elastic element 500 are fixed in the elastic element mounting cavity 220, and the vibration element is connected to the inner core 300. It can be understood that the above-mentioned vibration element can be an engine for providing power, or a transmission for changing the speed and torque from the engine, etc. This application embodiment does not limit this.

[0054] In this embodiment, the housing 200 is an aluminum casting. However, those skilled in the art will understand that in other embodiments, the housing 200 may also be made of other metals, such as aluminum or cast iron.

[0055] Further reference Figure 3 and Figure 4 , Figure 4 A three-dimensional view of the suspension device 100 of this application is shown. Figure 2 The housing also has a back plate 230, and along the first axis A, the top of the back plate 230 has a plurality of first mounting points 231. Figure 4 The diagram shows four first mounting points 231, and the bottom of the back panel 230 has multiple second mounting points 232. Figure 4Two second mounting points 232 are shown; a plurality of first mounting points 231 and a plurality of second mounting points 232 are respectively spaced along the third axis C; and along the first axis A, the plurality of first mounting points 231 are higher than the inner core mounting cavity 210.

[0056] Specifically, compared to fixed connections via connectors, directly setting multiple mounting points on the back plate 230 optimizes space utilization. Furthermore, the spaced-apart mounting points with reinforcing ribs enhance the load-bearing capacity of the housing 200. Each mounting point has bolt holes 2311 for bolts to pass through, thus rigidly connecting the housing 200 to the vehicle frame and increasing the stability of the vibration element. Those skilled in the art will understand that in other embodiments, the number of mounting points can be any number, such as one, two, or three.

[0057] refer to Figure 5 , Figure 5 An exploded view of the suspension device 100 of this application is shown. The inner core mounting cavity 210 is further provided with a rear wall 211 and a first opening 212 in the direction of the second axis B. The first opening 212 is disposed opposite to the rear wall 211, and the inner core mounting cavity 210 is provided with a second opening 213 in the direction of the first axis A.

[0058] Furthermore, the inner core 300 is provided with a support platform 310, which is located at the second opening 213.

[0059] Specifically, the inner core 300 enters the inner core mounting cavity 210 through the first opening 212, and the support platform 310 is used to connect with the vibration element; the inner core 300 fixes the vibration element on the support platform 310 at the second opening 213. The support platform 310 is used to provide a reference surface to ensure that the vibration element is correctly positioned during assembly, and when the suspension device 100 is subjected to downward pressure from the vibration element along the vehicle height direction, that is, when the inner core 300 is subjected to external load, the support platform 310 can bear all the load and reduce the vibration amplitude transmitted from the vibration element to the elastic element.

[0060] For example, the support platform 310 is provided with a threaded sleeve 311, and the vibrating element is connected and fixed to the threaded sleeve 311 by bolts.

[0061] refer to Figure 5 The rear wall 211 is provided with a protrusion 214; the inner core 300 is provided with a concave portion 320 along the second axis B direction, the shape of the protrusion 214 is adapted to the shape of the concave portion 320, and the concave portion 320 and the protrusion 214 are in a concave-convex fit.

[0062] Specifically, the inner core 300 has a recess 320 that cooperates with the protrusion 214 of the inner core mounting cavity for fixation. The inner core 300 and the inner core mounting cavity 210 are vulcanized together to enhance the stability of the inner core 300 and prevent the inner core 300 from being displaced relative to the inner core mounting cavity 210 along the first axis A, the second axis B, or the third axis C when subjected to external loads. Moreover, the vulcanized connection method can reduce space occupation compared to traditional fastening methods, such as bolt fastening.

[0063] In this embodiment, the inner core 300 is made of metal and has a certain degree of hardness. However, those skilled in the art will understand that in other embodiments, the inner core 300 may also be made of other metals, such as aluminum, cast iron, or steel.

[0064] refer to Figure 6 , Figure 6 The front view of the suspension device 100 according to an embodiment of this application is shown along the Y direction of the vehicle width. Figure 1 ,like Figure 6 As shown, the elastic element mounting cavity 220 includes a first wall 240 and a second wall 250 disposed opposite to each other, and the inner core mounting cavity 210 is disposed above the elastic element mounting cavity 220. The first wall 240 is the cavity wall of the inner core mounting cavity 210 and is a common wall of the elastic element mounting cavity 220 and the inner core mounting cavity 210.

[0065] In this embodiment, the first wall 240 and the second wall 250 are made of metal, specifically aluminum, steel, etc. However, those skilled in the art will understand that in other embodiments, the first wall 240 and the second wall 250 can also be made of other materials, such as plastics that can achieve the same function.

[0066] Further reference Figure 6 The first wall 240 includes a first pressing portion 241 and a second pressing portion 242, which are symmetrically arranged along the first axis A. The first pressing portion 241 and the second pressing portion 242 are respectively inclined relative to the first plane W1. The second wall 250 includes a first support portion 251 and a second support portion 252, which are symmetrically arranged along the first axis A. The first support portion 251 and the second support portion 252 are respectively inclined relative to the first plane W1. The first pressing portion 241 and the first support portion 251 are arranged in parallel, and the second pressing portion 242 and the second support portion 252 are arranged in parallel.

[0067] Further reference Figure 7 , Figure 7 The front view of the suspension device 100 according to an embodiment of this application is shown along the Y direction of the vehicle width. Figure 2The first elastic element 400 and the second elastic element 500 are symmetrically mounted in the elastic element mounting cavity 220 along the first axis A. The first elastic element 400 includes a first contact surface 410 and a second contact surface 420. The first contact surface 410 abuts against the first pressing portion 241, and the second contact surface 420 abuts against the first supporting portion 251. The second elastic element 500 includes a third contact surface 510 and a fourth contact surface 520. The third contact surface 510 abuts against the second pressing portion 242, and the fourth contact surface 520 abuts against the second supporting portion 252.

[0068] Specifically, the first pressing part 241, the second pressing part 242, the first supporting part 251 and the second supporting part 252 support the first elastic element 400 and the second elastic element 500 while also limiting their position, ensuring that the first elastic element 400 and the second elastic element 500 have an inclined angle.

[0069] In this embodiment, the first elastic element 400 and the second elastic element 500 have the same structure, and are arranged symmetrically along the first axis A. For example, the first elastic element 400 and the second elastic element 500 are made of rubber. For example, the first wall 240, the second wall 250 and the housing 200 form an elastic element mounting cavity 220. The first contact surface 410 is vulcanized and connected to the first wall 240, and the third contact surface 510 is vulcanized and connected to the first wall 240. That is, the first elastic element 400 and the second elastic element 500 are respectively fixed on the first wall 240, thereby restricting the free deformation of the first elastic element 400 and the second elastic element 500 and enhancing the rigidity of the first elastic element 400 and the second elastic element 500.

[0070] Further reference Figure 7 The first contact surface 410 and the second contact surface 420 are arranged in parallel, and the third contact surface 510 and the fourth contact surface 520 are arranged in parallel.

[0071] For example, the first contact surface 410 and the second contact surface 420, and the third contact surface 510 and the fourth contact surface 520 are parallel. The contact surfaces can be smooth planes or curved surfaces, or they can be uneven planes or curved surfaces. Specifically, in this embodiment, the first elastic element 400 and the second elastic element 500 are rectangular structures, and the first contact surface 410, the second contact surface 420, the third contact surface 510, and the fourth contact surface 520 are planes.

[0072] For example, refer to Figure 8 , Figure 8The positional relationship of the first axis, the second axis, and the third axis is shown. The second axis B is perpendicular to both the third axis C and the first axis A. The second axis B and the third axis C are both located in the first plane W1. The extension direction of the first axis A is the vehicle height Z direction, the extension direction of the second axis B is the vehicle width Y direction, and the extension direction of the third axis C is the vehicle length X direction.

[0073] refer to Figure 7 and Figure 9 , Figure 9 A side view of the suspension device 100 of this utility model is shown. Figure 1 The first elastic element 400 is inclined relative to the first plane W1, and the extension direction of the lower edge 421 of the second contact surface 420 forms a first tilt angle α1 with the second axis B. The angle range of the first tilt angle α1 is 20° to 30°, for example, 20°, 22°, 26°, 30°.

[0074] refer to Figure 7 and Figure 10 , Figure 10 A side view of the suspension device 100 of this utility model is shown. Figure 2 The second elastic element 500 is inclined relative to the first plane W1, and the extension direction of the lower edge 521 of the fourth contact surface 520 forms a second tilt angle α2 with the second axis B. The angle range of the second tilt angle α2 is 20° to 30°, for example, 20°, 22°, 26°, 30°.

[0075] By adopting the above scheme, the first elastic element 400 and the second elastic element 500 are inclined relative to the first plane W1, thereby improving the rigidity in the direction of the first axis A and the direction of the third axis C. The first elastic element 400 forms a first tilt angle α1 relative to the direction of the second axis B, and the second elastic element 500 forms a second tilt angle α2 relative to the direction of the second axis B, thereby improving the rigidity in the direction of the second axis B.

[0076] In this embodiment, since the first elastic element 400 and the second elastic element 500 are rectangular structures, when the lower edge 421 of the second contact surface 420 has a first tilt angle α1 relative to the second axis B and the lower edge 521 of the fourth contact surface 520 has a second tilt angle α2 relative to the second axis B, it is equivalent to the entire first elastic element 400 and the entire second elastic element 500 having tilt angles relative to the second axis B.

[0077] It should be noted that the first elastic element 400 and the second elastic element 500 have the same tilt angle relative to the first plane W1, but opposite directions, and the first tilt angle α1 and the second tilt angle α2 have the same angle and the same direction. However, those skilled in the art will understand that in other embodiments, the angles of the first tilt angle α1 and the second tilt angle α2 can be any intermediate value within the range of 20° to 30°, such as 21.5°, 25.7°, etc.

[0078] refer to Figure 11 , Figure 11 A cross-sectional view of the suspension device 100 of this application along the AA direction is shown, wherein the extension direction of the lower edge 2511 of the first support portion 251 forms a third tilt angle α3 relative to the second axis B.

[0079] refer to Figure 12 , Figure 12 A cross-sectional view of the suspension device 100 of this application along the BB direction is shown. The extension direction of the lower edge 2521 of the second support portion 252 forms a fourth tilt angle α4 relative to the second axis B. The third tilt angle α3 and the fourth tilt angle α4 are consistent with the first tilt angle α1.

[0080] Specifically, the tilt angle and direction of the first support portion 251 are consistent with those of the first elastic element 400, and the tilt angle and direction of the second support portion 252 are consistent with those of the second elastic element 500.

[0081] Furthermore, returning to Figure 6 The first elastic element 400 and the second elastic element 500 can surround each other between the first support portion 251, the second support portion 252 and the first wall 240 to form an active space 260.

[0082] In other words, the first support portion 251 and the second support portion 252 are used to define the activity space 260 of the first elastic element 400 and the second elastic element 500, respectively. The activity space 260 provides a certain buffer area. When subjected to external vibration and impact, the first elastic element 400 and the second elastic element 500 can undergo elastic deformation within the activity space 260 to absorb and dissipate vibration energy, thereby effectively reducing the vibration amplitude transmitted to the housing 200 and its connected components, and improving the overall shock absorption effect.

[0083] refer to Figure 5 , Figure 8 and Figure 9 The first elastic element 400 and the second elastic element 500 are respectively provided with a first steel plate 430 and a second steel plate 530. The outer contour of the first steel plate 430 protrudes from the first elastic element 400, and the outer contour of the second steel plate 530 protrudes from the outer contour of the second elastic element 500.

[0084] Specifically, the first steel plate 430 and the second steel plate 530 can increase the rigidity of the first elastic element 400 and the second elastic element 500, so that when the first elastic element 400 and the second elastic element 500 are subjected to external vibration and impact, the free deformation of the first elastic element 400 and the second elastic element 500 can be restricted, a certain resistance can be increased, the rigidity can be improved, and thus the propagation of vibration amplitude can be reduced.

[0085] For example, the first steel plate 430 is vulcanized to the first elastic element 400, and the second steel plate 530 is vulcanized to the second elastic element 500.

[0086] refer to Figure 8 and Figure 9 The first metal plate 440 and the second metal plate 540 are provided on the second contact surface 420 and abut against the first support portion 251. The second metal plate 540 is provided on the fourth contact surface 520 and abuts against the second support portion 252.

[0087] Specifically, the first elastic element 400 abuts against the first support portion 251 via the first metal plate 440, and the second elastic element 500 abuts against the second support portion 252 via the second metal plate 540. The first metal plate 440 and the first support portion 251 are in an interference fit, and the second metal plate 540 and the second support portion 252 are in an interference fit, thereby solving the problem that the elastic element will fall off due to insufficient friction when it directly abuts against the support portion.

[0088] refer to Figure 11 and Figure 12 The first metal plate 440 and the second metal plate 540 extend along the second axis, and the ends are respectively provided with a first bendable straight plate 441 and a second bendable straight plate 541.

[0089] Back Figure 4 The shell is provided with a back plate 230, and the back plate 230 is provided with a first through groove 233 and a second through groove 234. A first bendable straight plate 441 passes through the first through groove 233 and bends towards the back plate 230 and fits against the back plate 230; a second bendable straight plate 541 passes through the second through groove 234 and bends towards the back plate 230 and fits against the back plate 230.

[0090] Specifically, the first bendable straight plate 441, in its straight state, passes through the first through slot 233 and then bends towards the back plate 230, fitting against the back plate 230. The second bendable straight plate 541, in its straight state, passes through the second through slot 234 and then bends towards the back plate 230, fitting against the back plate 230. This effectively fixes the positions of the first elastic element 400 and the second elastic element 500, preventing them from falling off due to external vibration.

[0091] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A suspension device, characterized in that, include: The housing includes an elastic element mounting cavity, the elastic element mounting cavity including a first wall and a second wall disposed opposite to each other; A first elastic element and a second elastic element are symmetrically mounted in the elastic element mounting cavity along a first axis, the extension direction of the first axis being the vehicle height direction; The first elastic element includes a first contact surface and a second contact surface. The first contact surface abuts against the first wall, and the second contact surface abuts against the second wall. The first elastic element is inclined relative to the first plane, and the extension direction of the lower edge of the second contact surface forms a first angle with the second axis. The second axis is perpendicular to both the third axis and the first axis. Both the second axis and the third axis are located in the first plane. The extension direction of the second axis is the vehicle width direction, and the extension direction of the third axis is the vehicle length direction. The second elastic element includes a third contact surface and a fourth contact surface. The third contact surface abuts against the first wall, and the fourth contact surface abuts against the second wall. The second elastic element is inclined relative to the first plane, and the extending direction of the lower edge of the fourth contact surface forms a second inclination angle with the second axis. The first tilt angle has an angle range of 20° to 30°, and the second tilt angle has an angle range of 20° to 30°.

2. The suspension device as described in claim 1, characterized in that, The first tilt angle is the same as the second tilt angle.

3. The suspension device as described in claim 1, characterized in that, The second wall includes a first support portion and a second support portion, which are symmetrically arranged along the first axis. The first support portion abuts against the second contact surface, and the second support portion abuts against the fourth contact surface. The first support portion and the second support portion are respectively inclined relative to the first plane. The extension direction of the lower edge of the first support portion forms a third inclination angle relative to the second axis, and the extension direction of the lower edge of the second support portion forms a fourth inclination angle relative to the second axis. The third inclination angle and the fourth inclination angle are consistent with the first inclination angle.

4. The suspension device as described in claim 1, characterized in that, The first elastic element and the second elastic element are rectangular structures, the first contact surface and the second contact surface are arranged parallel to each other, and the third contact surface and the fourth contact surface are arranged parallel to each other.

5. The suspension device as described in claim 1, characterized in that, The first elastic element and the second elastic element are respectively provided with a first steel plate and a second steel plate, the outer contour of the first steel plate protruding from the first elastic element, and the outer contour of the second steel plate protruding from the outer contour of the second elastic element.

6. The suspension device as described in claim 3, characterized in that, It also includes a first metal plate and a second metal plate, the first metal plate being disposed on the second contact surface and abutting against the first support portion, and the second metal plate being disposed on the fourth contact surface and abutting against the second support portion.

7. The suspension device as described in claim 6, characterized in that, The first metal plate and the second metal plate extend along the second axis, and the ends are respectively provided with a first bendable straight plate and a second bendable straight plate; The housing is provided with a back plate, the back plate is provided with a first through groove and a second through groove, the first bendable straight plate passes through the first through groove and bends towards the back plate and fits against the back plate; the second bendable straight plate passes through the second through groove and bends towards the back plate and fits against the back plate.

8. The suspension device as described in claim 7, characterized in that, It also includes an inner core and an inner core mounting cavity; the inner core mounting cavity is disposed above the elastic element mounting cavity, the first wall is the cavity wall of the inner core mounting cavity, the inner core mounting cavity has a rear wall, the rear wall has a protrusion, the inner core mounting cavity also has a first opening in the second axial direction, the first opening is disposed opposite to the rear wall, and the inner core mounting cavity has a second opening in the first axial direction; the inner core enters the inner core mounting cavity through the first opening, the inner core has a support platform, the support platform is used to connect with the vibration element, the support platform is located at the second opening, the inner core has a recess along the second axial direction, the recess and the protrusion are in concave-convex fit.

9. The suspension device as described in claim 8, characterized in that, Along the first axis, the top of the back plate is provided with a plurality of first mounting points, and the bottom of the back plate is provided with a plurality of second mounting points; the plurality of first mounting points and the plurality of second mounting points are respectively spaced apart along the third axis, and along the first axis, the plurality of first mounting points are higher than the inner core mounting cavity, and the plurality of first mounting points and the plurality of second mounting points are respectively used to connect with the vehicle frame.

10. A vehicle, characterized in that, include: The suspension device according to any one of claims 1-9; The vehicle frame is connected to the first mounting point and the second mounting point of the suspension device; A vibrating element, which is connected to the inner core of the suspension device.

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