Hydraulic suspension structure and vehicle

Abstract

The hydraulic suspension structure is applied to the field of vehicles, the hydraulic suspension structure comprises a suspension main spring, a runner plate and an outer pipe which are sequentially arranged from inside to outside, the runner plate is connected with the suspension main spring, a first liquid chamber and a second liquid chamber which are independent of each other are formed between the runner plate and the suspension main spring, and the first liquid chamber and the second liquid chamber are communicated with each other. A runner is arranged on the outer wall of the runner plate, a first liquid inlet and outlet and a second liquid inlet and outlet are formed in the runner plate, the first liquid inlet and outlet is communicated with the first liquid chamber and the runner, the second liquid inlet and outlet is communicated with the second liquid chamber and the runner, and the runner comprises a first runner section which is in a step shape or a snake shape in the circumferential direction of the runner plate. By arranging the first flow channel section, the length of the flow channel is prolonged as much as possible in a limited space, the movement distance of damping liquid in the flow channel is longer, more loss is generated, and attenuation of low-frequency vibration is facilitated; when the damping liquid flows through the first flow channel section, buffering can be achieved, the damping liquid cannot strongly impact the outer pipe, and the service life of the suspension structure is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a hydraulic mount structure and a vehicle. Background Art

[0002] The circular bushing mount is generally applied to pure electric or hybrid vehicles and is used to support and isolate vibration of the axle; the circular bushing mount often adopts a pure rubber structure. However, due to the characteristics of the material itself of the pure rubber structure, its damping is very small or even zero, and the attenuation effect on the low-frequency vibration of the chassis and the powertrain is not obvious.

[0003] There is also a mount structure in the prior art, which includes a mount rubber and an outer tube. A flow channel plate is installed on the outside of the mount rubber. Flow channels are provided on the flow channel plate. There are two liquid chambers between the flow channel plate and the mount rubber. Two liquid inlet and outlet ports respectively communicating with the two liquid chambers are also provided on the flow channel plate. When the mount structure is radially squeezed, the damping liquid in the squeezed liquid chamber flows out from one of the liquid inlet and outlet ports into the flow channel and then flows to the other liquid chamber. The damping liquid generates losses during movement in the flow channel to form damping, which is beneficial to attenuate low-frequency vibration. However, in this solution, the flow channel is generally set as a straight flow channel or bent, and the flow channel is set to be short. When the damping liquid flows in this flow channel, the losses generated by the damping liquid during movement are less, and the impact force between the damping liquid and the outer tube is large, affecting the service life of the mount structure. Summary of the Utility Model

[0004] The utility model aims to at least solve one of the technical problems in the prior art that the flow channel is set to be short, the losses generated by the damping liquid during movement in the flow channel are less, and the impact force between the damping liquid and the outer tube is large, affecting the service life of the mount structure.

[0005] To this end, an object of the utility model is to propose a hydraulic mount structure. The hydraulic mount structure includes a mount main spring, a flow channel plate and an outer tube which are arranged in sequence from the inside to the outside. The flow channel plate is connected to the mount main spring. A first liquid chamber and a second liquid chamber which are independent of each other are formed between the flow channel plate and the mount main spring. A flow channel is provided on the outer wall of the flow channel plate. A first liquid inlet and outlet port and a second liquid inlet and outlet port are provided on the flow channel plate. The first liquid inlet and outlet port communicates the first liquid chamber and the flow channel. The second liquid inlet and outlet port communicates the second liquid chamber and the flow channel. The flow channel includes a first flow channel section which is stepped or serpentine along the circumferential direction of the flow channel plate.

[0006] In some embodiments, the first liquid chamber and the second liquid chamber are respectively located on the left and right sides of the main suspension spring along its radial direction. The first liquid inlet / outlet is arranged at the upper part of the flow channel plate, and the second liquid inlet / outlet is arranged at the lower part of the flow channel plate. The flow channel further includes a second flow channel segment connected to the first liquid inlet / outlet and a third flow channel segment connected to the second liquid inlet / outlet. The end of the second flow channel segment is close to the bottom of the flow channel plate and is connected to one end of the first flow channel segment, and the end of the third flow channel segment is close to the top of the flow channel plate and is connected to the other end of the first flow channel segment.

[0007] In some embodiments, a lapping portion connected to the flow channel plate is provided on the outer wall of the main suspension spring.

[0008] In some embodiments, the lapping portion includes a lapping concave platform, and a lapping block cooperating with the lapping concave platform is provided on the flow channel plate.

[0009] In some embodiments, a first limiting portion is provided on the outer wall of the main suspension spring near the lapping portion, and a second limiting portion cooperating with the first limiting portion is provided on the flow channel plate.

[0010] In some embodiments, a longitudinal seal is further provided on the outer wall of the main suspension spring and is hermetically connected to the flow channel plate, and the longitudinal seal is arranged at a position close to the lapping portion.

[0011] In some embodiments, a limiting member for limiting the flow channel plate is provided on the outer wall of the main suspension spring.

[0012] In some embodiments, the limiting member includes a plurality of limiting protrusions.

[0013] In some embodiments, the plurality of limiting protrusions are arranged in an array.

[0014] In some embodiments, the main suspension spring includes an inner skeleton and suspension rubber coated outside the inner skeleton. The inner skeleton includes an inner skeleton body, an annular support member, and a longitudinal support member. The annular support member is arranged on the upper and lower sides of the inner skeleton body, the longitudinal support member is connected between the two annular support members, and the longitudinal support member is recessed toward the inner side of the inner skeleton.

[0015] In some embodiments, the inner skeleton and the suspension rubber are of a vulcanized integral structure.

[0016] In some embodiments, the flow channel plate includes a first flow channel plate and a second flow channel plate located on the left and right sides of the suspension main spring along its radial direction. The first flow channel plate is connected to the suspension main spring to form the first liquid chamber, and the second flow channel plate is connected to the suspension main spring to form the second liquid chamber. A first flow channel is provided on the outer wall of the first flow channel plate, and a second flow channel is provided on the outer wall of the second flow channel plate. One end of the first flow channel is connected to the first liquid inlet / outlet, the other end of the first flow channel is connected to one end of the second flow channel, and the other end of the second flow channel is connected to the second liquid inlet / outlet.

[0017] Another object of the present invention is to provide a vehicle including the above-mentioned hydraulic suspension structure.

[0018] The hydraulic suspension structure and the vehicle provided by the embodiments of the present invention have the following beneficial effects:

[0019] The hydraulic suspension structure includes a suspension main spring, a flow channel plate, and an outer tube arranged in sequence from inside to outside. The flow channel plate is connected to the suspension main spring, and independent first and second liquid chambers are formed between the flow channel plate and the suspension main spring. A flow channel is provided on the outer wall of the flow channel plate, and a first liquid inlet / outlet and a second liquid inlet / outlet are provided on the flow channel plate. The first liquid inlet / outlet communicates the first liquid chamber with the flow channel, and the second liquid inlet / outlet communicates the second liquid chamber with the flow channel. The flow channel includes a first flow channel section that is stepped or serpentine along the circumferential direction of the flow channel plate; the first flow channel section is arranged in a stepped or serpentine shape. On the one hand, within the limited space of the flow channel plate, the length of the flow channel is extended as much as possible, and the damping liquid moves a longer distance in the flow channel, generating more losses, which is beneficial to attenuating low-frequency vibrations. On the other hand, when the damping liquid flows through the first flow channel section, buffering can be achieved, and the damping liquid will not strongly impact the outer tube, extending the service life of the suspension structure. Description of the Drawings

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 is a perspective view of a hydraulic suspension structure in an embodiment of the present invention;

[0022] Figure 2 is a cross-sectional view of a hydraulic suspension structure in an embodiment of the present invention;

[0023] Figure 3It is a schematic structural diagram (excluding the outer tube) of a hydraulic mount structure in an embodiment of the present utility model;

[0024] Figure 4 It is a perspective view of the rubber main spring in an embodiment of the present utility model;

[0025] Figure 5 It is a front view (excluding the outer tube) of a hydraulic mount structure in one embodiment of the present utility model;

[0026] Figure 6 It is a front view (excluding the outer tube) of a hydraulic mount structure in another embodiment of the present utility model;

[0027] Figure 7 It is a schematic structural diagram of the lapping part in an embodiment of the present utility model;

[0028] Figure 8 It is a schematic structural diagram of the inner skeleton in an embodiment of the present utility model.

[0029] Reference signs:

[0030] 1. Mount main spring; 11. First limiting part; 12. Second limiting part; 13. Inner skeleton; 131. Inner skeleton body; 132. Annular support; 133. Longitudinal support; 14. Mount rubber; 15. Reinforcing structure; 16. Positioning part; 2. Flow channel plate; 21. First liquid inlet / outlet; 22. Second liquid inlet / outlet; 23. First flow channel plate; 231. First flow channel; 24. Second flow channel plate; 241. Second flow channel; 3. Outer tube; 4. First liquid chamber; 5. Second liquid chamber; 6. Flow channel; 61. First flow channel section; 62. Second flow channel section; 63. Third flow channel section; 7. Limiting part; 8. Lapping part; 81. Lapping concave; 82. Lapping block; 821. First lapping block; 822. Second lapping block; 9. Longitudinal seal. Detailed implementation manners

[0031] Reference is made herein to the various solutions and features of the present utility model with reference to the drawings.

[0032] It should be understood that various modifications can be made to the embodiments applied herein. Therefore, the above description should not be regarded as a limitation, but only as an example of the embodiments. Those skilled in the art will think of other modifications within the scope and spirit of the present utility model.

[0033] The drawings included in and forming a part of the description show embodiments of the present utility model, and together with the general description of the present utility model given above and the detailed description of the embodiments given below are used to explain the principles of the present utility model.

[0034] These and other features of the present utility model will become apparent from the following description of the preferred forms of the embodiments given as non-limiting examples with reference to the accompanying drawings.

[0035] It should also be understood that although the present utility model has been described with reference to some specific examples, those skilled in the art can surely implement many other equivalent forms of the present utility model, which have the features as described in the claims and thus are all within the protection scope defined hereby.

[0036] When combined with the accompanying drawings, the above and other aspects, features and advantages of the present utility model will become more apparent in view of the following detailed description.

[0037] Hereinafter, specific embodiments of the present utility model will be described with reference to the accompanying drawings; however, it should be understood that the embodiments claimed are only examples of the present utility model, which can be implemented in various ways. Well-known and / or repetitive functions and structures are not described in detail to avoid obscuring the present utility model with unnecessary or redundant details. Therefore, the specific structural and functional details claimed herein are not intended to be limiting, but are merely used as a basis and representative basis for the claims to teach those skilled in the art to use the present utility model in substantially any suitable detailed structure in various ways.

[0038] The first embodiment of the present utility model provides a hydraulic mount structure, as Figures 1 - 8 shown, the hydraulic mount structure includes a mount main spring 1, a flow channel plate 2 and an outer tube 3 which are arranged in sequence from inside to outside, the flow channel plate 2 is connected to the mount main spring 1, a mutually independent first liquid chamber 4 and a second liquid chamber 5 are formed between the flow channel plate 2 and the mount main spring 1, a flow channel 6 is provided on the outer wall of the flow channel plate 2, a first liquid inlet / outlet 21 and a second liquid inlet / outlet 22 are provided on the flow channel plate 2, the first liquid inlet / outlet 21 communicates the first liquid chamber 4 and the flow channel 6, the second liquid inlet / outlet 22 communicates the second liquid chamber 5 and the flow channel 6, and the flow channel 6 includes a first flow channel section 61 which is stepped or serpentine along the circumferential direction of the flow channel plate 2.

[0039] Specifically, as Figure 2 and Figure 3As shown, there is damping liquid in the first liquid chamber 4 and the second liquid chamber 5, and the damping liquid reciprocates between the first liquid chamber 4 and the second liquid chamber 5 through the flow channel 6. Among them, the first liquid inlet / outlet 21 and the second liquid inlet / outlet 22 are both liquid inlets and liquid outlets, that is: when the damping liquid flows from the first liquid chamber 4 to the flow channel 6, the first liquid inlet / outlet 21 is used as a liquid outlet, and when the damping liquid flows from the flow channel 6 to the first liquid chamber 4, the first liquid inlet / outlet 21 is used as a liquid inlet. When the damping liquid flows from the second liquid chamber 5 to the flow channel 6, the second liquid inlet / outlet 22 is used as a liquid outlet, and when the damping liquid flows from the flow channel 6 to the second liquid chamber 5, the second liquid inlet / outlet 22 is used as a liquid inlet. Exemplarily, after the suspension structure is radially squeezed (one side of the outer tube 3 is squeezed), the liquid in the first liquid chamber 4 passes through the first liquid inlet / outlet 21 and the flow channel 6, and then returns to the second liquid chamber 5 through the second liquid inlet / outlet 22. The damping liquid flows through the flow channel 6 and generates losses during the movement to form damping, which plays a role in vibration isolation. Similarly, after the other side of the outer tube 3 is squeezed, the liquid in the second liquid chamber 5 passes through the second liquid inlet / outlet 22 and the flow channel 6, and then returns to the first liquid chamber 4 through the first liquid inlet / outlet 21. The damping liquid flows through the flow channel 6 and generates losses during the movement to form damping, which plays a role in vibration isolation. Among them, the flow channel 6 has a first flow channel section 61 arranged along the circumferential direction of the flow channel plate 2. The first flow channel section 61 is arranged in a stepped shape or a serpentine shape. On the one hand, the length of the flow channel 6 is extended as much as possible within the limited space of the flow channel plate 2, so as to increase the volume of the damping liquid accommodated in the flow channel 6, and the damping liquid moves in the flow channel 6 for a longer time and the vibration isolation time is longer; on the other hand, when the damping liquid flows through the flow channel 6, it can be buffered through the first flow channel section 61, and the damping liquid will not strongly impact the outer tube 3, thus prolonging the service life of the suspension structure.

[0040] In some embodiments, as Figure 4 shown, a limiting member 7 for limiting the flow channel plate 2 is provided on the outer wall of the suspension main spring 1. Exemplarily, the limiting member 7 includes a plurality of limiting protrusions and the plurality of limiting protrusions are arranged in an array. On the one hand, the limiting member 7 limits the flow channel plate 2, which is beneficial to form a hollow chamber between the flow channel plate 2 and the suspension main spring 1 to form the first liquid chamber 4 and the second liquid chamber 5. On the other hand, setting the limiting member 7 on the outer wall of the suspension main spring 1 can improve the buffering effect of the damping liquid flowing in the first liquid chamber 4 and the second liquid chamber 5.

[0041] In some embodiments, as Figure 3 、 Figure 5 and Figure 7As shown, the first liquid chamber 4 and the second liquid chamber 5 are respectively located on the left and right sides of the suspension main spring 1 along its radial direction. The first liquid inlet / outlet 21 is arranged at the upper part of the flow channel plate 2, and the second liquid inlet / outlet 22 is arranged at the lower part of the flow channel plate 2. The positions of the first liquid inlet / outlet 21 and the second liquid inlet / outlet 22 are set away from the limiting member 7 to prevent the limiting member 7 from blocking the first liquid inlet / outlet 21 and the second liquid inlet / outlet 22. Herein, the upper part of the flow channel plate 2 and the lower part of the flow channel plate 2 refer to the positions close to the edges at both ends of the suspension main spring 1 along its axial direction. In addition, the flow channel 6 further includes a second flow channel segment 62 connected to the first liquid inlet / outlet 21 and a third flow channel segment 63 connected to the second liquid inlet / outlet 22. The end of the second flow channel segment 62 is close to the bottom of the flow channel plate 2 and is connected to one end of the first flow channel segment 61, and the end of the third flow channel segment 63 is close to the top of the flow channel plate 2 and is connected to the other end of the first flow channel segment 61. The end of the second flow channel segment 62 and its corresponding first liquid inlet / outlet 21 are respectively located on the upper and lower sides of the flow channel plate 2, and the end of the third flow channel segment 63 and its corresponding second liquid inlet / outlet 22 are respectively located on the upper and lower sides of the flow channel plate 2. That is, both the second flow channel segment 62 and the third flow channel segment 63 include a transverse flow channel segment and a longitudinal flow channel segment, providing a relatively large flow area for the damping liquid.

[0042] In some other embodiments, as Figure 6 shown, the second flow channel segment 62 and the third flow channel segment 63 are arranged in a serpentine shape, and within the limited area of the flow channel plate 2, the layout length of the flow channel 6 is extended as much as possible, which is beneficial to the flow of the damping liquid in the flow channel 6 to form damping.

[0043] In some embodiments, as Figure 5 and Figure 7 shown, a lapping portion 8 connected to the flow channel plate 2 is provided on the outer wall of the suspension main spring 1. Herein, the lapping portion 8 is arranged on the left and right sides of the suspension main spring 1 along its radial direction, and is lapped with different positions of the flow channel plate 2 respectively, providing an installation position for the installation of the flow channel plate 2.

[0044] Specifically, the lapping portion 8 includes a lapping concave platform 81, which can be arranged on both sides of the suspension main spring 1, and a lapping block 82 cooperating with the lapping concave platform 81 is provided on the flow channel plate 2. The number of the lapping blocks 82 can be set to one or more. Exemplarily, as Figure 4 and Figure 8 shown, the lapping block 82 includes a first lapping block 821 and a second lapping block 822. The first lapping block 821 and the second lapping block 822 are respectively lapped with the lapping concave platform 81 on the left and right sides of the suspension main spring 1 along its radial direction, improving the installation stability of the flow channel plate 2.

[0045] In some embodiments, as Figure 3As shown in the figure, a first limiting portion 11 is provided on the outer wall of the main suspension spring 1 near the overlapping portion 8, and a second limiting portion 12 cooperating with the first limiting portion 11 is provided on the flow channel plate 2. The first limiting portion 11 and the second limiting portion 12 cooperate with each other to limit the flow channel plate 2 at the main suspension spring 1, preventing the flow channel plate 2 from moving relative to the main suspension spring 1 and affecting the damping effect of the suspension structure. The first limiting portion 11 is arranged near the overlapping portion 8 and cooperates with the overlapping portion 8 to ensure the installation reliability of the flow channel plate 2. Exemplarily, both the first limiting portion 11 and the second limiting portion 12 are limiting blocks.

[0046] Among them, the flow channel plate 2 can be provided in two, specifically, a first flow channel plate 23 and a second flow channel plate 24 located on the left and right sides of the main suspension spring 1. The first flow channel plate 23 is connected to the main suspension spring 1 to form a first liquid chamber 4, and the second flow channel plate 24 is connected to the main suspension spring 1 to form a second liquid chamber 5. Providing the flow channel plate 2 in two is convenient for installing it on the outside of the main suspension spring 1 and also convenient for disassembly.

[0047] Furthermore, a first flow channel 231 is provided on the outer wall of the first flow channel plate 23, and a second flow channel 241 is provided on the outer wall of the second flow channel plate 24. One end of the first flow channel 231 is connected to the first liquid inlet / outlet 21, the other end of the first flow channel 231 is connected to one end of the second flow channel 241, and the other end of the second flow channel 241 is connected to the second liquid inlet / outlet 22. Specifically, the first flow channel 231 and the second flow channel 241 are connected at the overlapping portion 8 to form a complete flow channel 6. The first flow channel 231 includes a second flow channel section 62 and a part of the structure of the first flow channel section 61, and the second flow channel 241 includes a third flow channel section 63 and another part of the structure of the first flow channel section 61. The layout forms of the first flow channel plate 23 and the second flow channel plate 24 can be set to the same shape (such as semi-circular), or can be set to different shapes. The layout forms of the first flow channel 231 and the second flow channel 241 can be set to the same shape or can be set to different shapes. Exemplarily, the cross-sections of the first flow channel 231 and the second flow channel 241 are rectangular, and the first flow channel 231 is recessed inward along the first flow channel plate 23, and the second flow channel 241 is recessed inward along the second flow channel plate 24.

[0048] The sealing performance near the overlapping portion 8 is relatively poor (for example, when the first flow channel plate 23 and the second flow channel plate 24 are arranged outside the main suspension spring 1, the ends of the first flow channel plate 23 and the second flow channel plate 24 cooperate with the overlapping portion 8, and the overlapping portion 8 is at the splicing position of the first flow channel plate 23 and the second flow channel plate 24). Therefore, as Figure 4 shown in the figure, a longitudinal seal 9 is provided near the overlapping portion 8, and the longitudinal seal 9 is provided on the outer wall of the main suspension spring 1 to improve the sealing performance between the outer tube 3 and the flow channel plate 2, preventing the damping liquid from flowing without passing through the flow channel 6 and preventing the damping liquid from leaking from the suspension structure. Exemplarily, the longitudinal seal 9 is a rubber sealing strip protruding outward.

[0049] The suspension main spring 1 includes an inner skeleton 13 and suspension rubber 14 wrapped around the outer side of the inner skeleton 13. The inner skeleton 13 plays a supporting role for the suspension rubber 14. Exemplarily, the suspension rubber 14 is made of rubber material, and its stiffness in each direction can be freely selected within a certain range. The suspension rubber 14 has the characteristics of a spatial spring, can bear loads in multiple directions, and can better absorb vibration and shock energy.

[0050] As Figure 8 shown, the inner skeleton 13 includes an inner skeleton body 131, an annular support member 132, and a longitudinal support member 133. The inner skeleton body 131 is a tubular structure, and the annular support member 132 is arranged on the upper and lower sides of the inner skeleton body 131. Among them, the diameter of the annular support member 132 is larger than the diameter of the inner skeleton body 131, which ensures the supporting performance of the annular support member 132 and at the same time ensures that the diameters of the upper and lower ends of the suspension rubber 14 outside the inner skeleton 13 are larger than the diameter of the middle part of the suspension rubber 14, which is beneficial to the installation of the flow channel plate 2.

[0051] The longitudinal support member 133 is connected between the two annular support members 132 for supporting the two annular support members 132, and the longitudinal support member 133 is recessed toward the inner side of the inner skeleton 13 to improve the overall strength of the inner skeleton 13 and ensure its supporting performance.

[0052] In some embodiments, the suspension main spring 1 and the inner skeleton 13 are integrally formed by vulcanization. The number of parts of the suspension structure can be reduced, and the assembly efficiency can be improved. During installation, the flow channel plate 2 is installed on the outer side of the suspension main spring 1 through the lapping portion 8 and the first limiting portion 11, and then the whole is pressed into the outer tube 3.

[0053] The upper end and / or the lower end of the suspension main spring 1 along its axial direction has a circumferentially arranged strengthening structure 15. The strengthening structure 15 can be set as a reinforcing rib, which can be integrally formed with the suspension main spring 1 or separately arranged from the suspension main spring 1. The strengthening structure 15 can improve the overall strength of the suspension main spring 1.

[0054] The upper end and / or the lower end of the suspension main spring 1 along its axial direction has a positioning member 16. When installing the suspension structure, the positioning member 16 is first matched with the installation structure at the installation position to improve the positioning accuracy.

[0055] Another object of the present invention is to propose a vehicle, including the above-mentioned hydraulic suspension structure.

[0056] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0057] In the description of the present utility model, the "first feature" and the "second feature" may include one or more of such features.

[0058] In the description of the present utility model, the meaning of "a plurality of" is two or more.

[0059] In the description of the present utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween.

[0060] In the description of the present utility model, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature.

[0061] In the description of the present utility model, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0062] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A hydraulic suspension structure, characterized in that: It includes a suspension main spring, a flow channel plate and an outer tube which are arranged in sequence from the inside to the outside, the flow channel plate is connected to the suspension main spring, and a first liquid chamber and a second liquid chamber which are independent of each other are formed between the flow channel plate and the suspension main spring, a flow channel is provided on the outer wall of the flow channel plate, and a first liquid inlet and outlet and a second liquid inlet and outlet are provided on the flow channel plate, the first liquid inlet and outlet connect the first liquid chamber and the flow channel, the second liquid inlet and outlet connect the second liquid chamber and the flow channel, and the flow channel includes a first flow channel section which is stepped or serpentine along the circumference of the flow channel plate.

2. A hydraulic suspension structure according to claim 1, characterized in that: The first liquid chamber and the second liquid chamber are respectively located on the left and right sides of the suspension main spring along its radial direction, the first liquid inlet and outlet are arranged at the upper part of the flow channel plate, and the second liquid inlet and outlet are arranged at the lower part of the flow channel plate, and the flow channel also includes a second flow channel section connected to the first liquid inlet and outlet and a third flow channel section connected to the second liquid inlet and outlet, an end of the second flow channel section is close to the bottom of the flow channel plate and connected to one end of the first flow channel section, and an end of the third flow channel section is close to the top of the flow channel plate and connected to the other end of the first flow channel section.

3. The hydraulic suspension structure according to claim 1, characterized in that: An overlapping portion connected to the flow channel plate is provided on the outer wall of the suspension main spring.

4. A hydraulic suspension structure according to claim 3, characterized in that: The overlapping portion includes an overlapping concave platform, and the flow channel plate is provided with an overlapping block that cooperates with the overlapping concave platform; and / or A first limiting portion is provided on the outer wall of the suspension main spring near the overlapping portion, and a second limiting portion cooperating with the first limiting portion is provided on the flow channel plate.

5. The hydraulic suspension structure according to claim 3, characterized in that: A longitudinal sealing member sealedly connected to the flow channel plate is also provided on the outer wall of the suspension main spring, and the longitudinal sealing member is arranged at a position close to the overlapping portion.

6. The hydraulic mount structure according to claim 1, characterized in that: A limiting member for limiting the position of the flow channel plate is provided on the outer wall of the suspension main spring; and / or The limiting member includes a plurality of limiting protrusions; and / or The plurality of limiting protrusions are arranged in an array.

7. The hydraulic mount structure according to claim 1, characterized in that: The suspension main spring includes an inner frame and suspension rubber wrapped around the inner frame. The inner frame includes an inner frame body, an annular support member and a longitudinal support member. The annular support member is arranged on the upper and lower sides of the inner frame body. The longitudinal support member is connected between the two annular support members. The longitudinal support member is recessed toward the inner side of the inner frame.

8. The hydraulic mount structure according to claim 7, characterized in that: The inner frame and the suspension rubber are a vulcanized integrated structure.

9. The hydraulic mount structure according to claim 1, characterized in that: The flow channel plate includes a first flow channel plate and a second flow channel plate located on the left and right sides of the suspension main spring along the radial direction. The first flow channel plate is connected to the suspension main spring to form the first liquid chamber, and the second flow channel plate is connected to the suspension main spring to form the second liquid chamber. The outer wall of the first flow channel plate is provided with a first flow channel, and the outer wall of the second flow channel plate is provided with a second flow channel. One end of the first flow channel is connected to the first liquid inlet and outlet, the other end of the first flow channel is connected to one end of the second flow channel, and the other end of the second flow channel is connected to the second liquid inlet and outlet.

10. A vehicle, characterized in that: A hydraulic suspension structure comprising any one of claims 1-9.

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