Suspension

Abstract

The utility model relates to a suspension which is used for supporting a power transmission system and comprises a shell, a main rubber assembly and a hydraulic damping module, an installation space is arranged in the shell, and the shell comprises an opening. A main rubber assembly mounted in the mounting space of the housing and partially protruding from the opening; a hydraulic damping module is attached to an end face of the housing and surrounds a portion of the main rubber assembly protruding from the opening, the hydraulic damping module configured to provide an additional damping effect when movement of the powertrain in a downward and / or lateral direction exceeds a threshold. The suspension can provide an additional damping effect in a large transverse / vertical load driving mode so as to absorb impact energy. In addition, the suspension does not provide additional damping effect in a small transverse / vertical load driving mode, so that the performance of other vehicles is not influenced by the additional damping effect.

Description

Technical Field

[0001] The utility model relates to a mount, and more specifically, to a vehicle mount for supporting a power train. Background Art

[0002] Vehicle mounts are used to support the weight of a power train (PT), isolate vibrations, and control the movement of the power train, etc. The power train includes a power source (such as an engine), a transmission, etc.

[0003] Currently, the commonly used mount types in the market are rubber mounts or two-way hydraulic bushing mounts.

[0004] However, a rubber mount can only control the lateral movement of the power train and cannot provide a damping effect for absorbing shock energy.

[0005] A two-way hydraulic bushing mount can provide lateral damping, but its vertical damping may have greater adverse effects. For example, high dynamic stiffness may reduce the NVH performance under idle / normal driving conditions.

[0006] In addition, the damping effect exists under all driving conditions, even for small displacement movements that do not require damping. And the complex structure and connection directions will greatly increase the difficulty of NVH (noise, vibration, and harshness) / R&H (ride and handling) adjustment of the mount.

[0007] In addition, too many additional sub-components and larger sizes may greatly increase the cost and weight.

[0008] When using a two-way hydraulic bushing mount in different vehicles, due to different requirements for Ks (static stiffness) in different vehicles, such mounts are often not universal.

[0009] In view of this, there is an urgent need for an improved mount structure to solve at least one of the above problems.

[0010] The information disclosed in the background art part of the present utility model is only intended to increase the understanding of the overall background of the present utility model, and should not be regarded as an admission or any form of implication that this information constitutes the prior art already known to those of ordinary skill in the art. Summary of the Utility Model

[0011] The purpose of the present utility model is to provide a mount that can provide an additional damping effect under a large lateral / vertical load driving mode to absorb shock energy, and does not provide an additional damping effect under a small lateral / vertical load driving mode.

[0012] To achieve the above object, the present utility model provides a mount for supporting a powertrain. The mount may include: a housing, a main rubber component, and a hydraulic damping module. The interior of the housing has an installation space, and the housing includes an opening; the main rubber component is installed in the installation space of the housing and partially protrudes from the opening; the hydraulic damping module is attached to an end face of the housing and surrounds a portion of the main rubber component that protrudes from the opening. The hydraulic damping module is configured to provide an additional damping effect when the movement of the powertrain in the downward direction and / or the lateral direction exceeds a threshold value.

[0013] The aforementioned mount, wherein at least one mounting bracket may be provided on an outer peripheral surface of the housing. The hydraulic damping module may include: an upper housing, a lower housing, and a damping unit. The upper housing has an upper chamber that opens downward; the lower housing is provided at the bottom of the upper housing; the damping unit is provided in the lower housing.

[0014] The aforementioned mount, wherein the upper housing may be formed in a ring shape, and the shape of an inner peripheral surface of the ring-shaped upper housing may correspond to the shape of the opening of the housing; a protrusion may be further formed on the inner peripheral surface of the ring-shaped upper housing. The protrusion is located below a portion of the main rubber component that protrudes from the opening and is spaced apart from the portion of the main rubber component that protrudes from the opening by a predetermined distance.

[0015] The aforementioned mount, wherein the damping unit may include: a first damping element, a second damping element, and a bottom film. The first damping element is formed in a plate shape and includes a first opening and a second opening; the first damping element is press-fitted into the second damping element, and the second damping element is provided in the lower housing. Wherein, the second damping element includes a first flow path and a second flow path inside it. The starting positions of the first flow path and the second flow path respectively correspond to the positions of the first opening and the second opening, and the first flow path includes a first through hole at its termination position, and the second flow path includes a second through hole at its termination position; the bottom film has a lower chamber that opens upward, and the bottom film is installed on the lower housing below the second damping element.

[0016] The aforementioned mount, wherein the bottom film may be made of a rubber material and an edge portion at the top is formed with a mounting flange; the damping unit may further include a clamping element; an upper surface of the mounting flange contacts a bottom surface of the second damping element, and a lower surface of the mounting flange contacts the clamping element. The clamping element may be supported by the lower housing.

[0017] The aforementioned mount, wherein the upper housing may be made of a rubber material; the lower housing may be made of a metal material; the upper housing and the lower housing may be formed as one body.

[0018] The foregoing mount, wherein an interference fit may be provided between the first damping element and the second damping element and they may be formed to be sealed against liquid; a seal against liquid is formed between the second damping element and the lower housing; a seal against liquid is formed between the second damping element and the bottom film.

[0019] The foregoing mount, wherein the hydraulic damping module may be filled with liquid; the upper chamber and the lower chamber may be configured to accommodate liquid; the first damping element and the second damping element cooperate such that liquid can flow between the upper chamber and the lower chamber through the first opening and the second opening of the first damping element and the first flow path and the second flow path of the second damping element.

[0020] The foregoing mount, wherein the first flow path and the second flow path may be arranged symmetrically with respect to each other; the first opening and the second opening may be arranged symmetrically with respect to each other; the first flow path and the second flow path may have a cross-sectional shape in the form of a "U"; the bottom film may have a cross-sectional shape in the form of a "W".

[0021] The foregoing mount, wherein the first damping element may be made of a metallic material; the second damping element may be made of a plastic material; the clamping element may be made of a metallic material.

[0022] The beneficial effects of the present utility model are as follows: The mount of the exemplary embodiment of the present utility model can provide an additional damping effect in a large lateral / vertical load driving mode to absorb impact energy. In addition, the mount of the exemplary embodiment of the present utility model does not provide an additional damping effect in a small lateral / vertical load driving mode, so there is no additional damping effect to affect other vehicle performances, such as NVH. In addition, the hydraulic damping module of the mount of the exemplary embodiment of the present utility model is attached to the end face of the housing, so it will not affect the main rubber assembly of the mount. Thus, the hydraulic damping module can be used for various different mounts without considering the requirements of different vehicles, such as requirements for static stiffness, requirements for dynamic stiffness, etc. In addition, compared with a bi-directional hydraulic bushing mount, the mount of the exemplary embodiment of the present utility model has advantages in terms of weight, layout, and cost. Description of the Drawings

[0023] Figure 1 A perspective view of a mount according to an exemplary embodiment of the present utility model.

[0024] Figure 2 A perspective view of a mount according to an exemplary embodiment of the present utility model, wherein the hydraulic damping module is removed.

[0025] Figure 3 Schematic perspective view of a hydraulic damping module according to an exemplary embodiment of the present utility model.

[0026] Figure 4 Schematic view showing the constituent elements of the hydraulic damping module of the present utility model.

[0027] Figure 5 Schematic view showing the cutting plane of the hydraulic damping module of the present utility model.

[0028] Figure 6 Is through Figure 5 The sectional view obtained by the cutting plane in.

[0029] Figure 7 Is along Figure 3 The sectional view obtained by the line A-A in.

[0030] Figure 8 Is Figure 7 The enlarged view of part B in.

[0031] Figure 9 Schematic view of a first damping element and a second damping element according to an exemplary embodiment of the present utility model.

[0032] Figure 10 Top view schematic of the second damping element according to an exemplary embodiment of the present utility model.

[0033] Figure 11 Schematic view exemplarily showing the flow path of the liquid in the upper chamber when the liquid in the upper chamber is squeezed.

[0034] Explanation of reference numerals:

[0035] 1 Housing

[0036] 11 Opening

[0037] 12 Mounting bracket

[0038] 2 Main rubber assembly

[0039] 3 Hydraulic damping module

[0040] 31 Upper housing

[0041] 311 Upper chamber

[0042] 312 Protrusion

[0043] 32 Lower housing

[0044] 321 Support flange

[0045] 33 First damping element

[0046] 331 First opening

[0047] 332 Second opening

[0048] 34 Second damping element

[0049] 341 First flow path

[0050] 342 Second flow path

[0051] 343 First through hole

[0052] 344 Second through hole

[0053] 35 Bottom film

[0054] 351 Lower chamber

[0055] 352 Mounting flange

[0056] 36 Clamping element. Detailed implementation manners

[0057] It should be understood that the drawings are not drawn to scale and show various features presented in a slightly simplified manner to illustrate the basic principles of the present invention. In the drawings of the present invention, the same reference numerals represent the same or equivalent parts of the present invention.

[0058] The following will refer in detail to various embodiments of the present invention, examples of which are shown in the drawings and described as follows. Although the present invention will be described in conjunction with the exemplary embodiments of the present invention, it will be understood that this specification is not intended to limit the present invention to those exemplary embodiments. On the contrary, the present invention is intended to cover not only the exemplary embodiments of the present invention, but also various alternative forms, modified forms, equivalent forms, and other embodiments included within the spirit and scope of the present invention as defined by the appended claims.

[0059] The specific structure and function descriptions of the embodiments of the present invention disclosed herein are only for the purpose of illustrating the embodiments of the present invention. Without departing from the spirit and important features of the present invention, the present invention can be implemented in many different forms. Therefore, the embodiments of the present invention are disclosed only for the purpose of illustration and should not be construed as limiting the present invention.

[0060] Although the terms "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, without departing from the teachings of the present invention, the first element discussed below may be referred to as the second element. Similarly, the second element may also be referred to as the first element.

[0061] Certain terms are used throughout the application documents of the present utility model to refer to specific system components. As those skilled in the art will recognize, different names can often be used to refer to the same component, and thus the application documents of the present utility model are not intended to distinguish between components that differ only in name but not in function. In the documents of the present utility model, the terms "including", "comprising" and "having" are used in an open form and should therefore be interpreted to mean "including but not limited to...".

[0062] Hereinafter, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

[0063] Figure 1 is a three-dimensional schematic diagram of a suspension according to an exemplary embodiment of the present utility model, Figure 2 is a perspective schematic diagram of a suspension according to an exemplary embodiment of the present utility model, wherein the hydraulic damping module is removed. Figure 3 is a three-dimensional schematic diagram of a hydraulic damping module according to an exemplary embodiment of the present utility model, Figure 4 Schematic diagram showing the components of the hydraulic damping module of the utility model, Figure 5 Schematic diagram showing a cut plane of the hydraulic damping module of the utility model, Figure 6 To pass Figure 5 The sectional view obtained by the cutting plane in Figure 7 For along Figure 3 The cross-sectional view obtained by the line AA in FIG. Figure 8 for Figure 7 An enlarged schematic diagram of part B in FIG. Figure 9 is a schematic diagram of a first damping element and a second damping element according to an exemplary embodiment of the present utility model, Figure 10 is a schematic top view of a second damping element according to an exemplary embodiment of the present utility model, Figure 11 The figure is a schematic diagram exemplarily showing the flow path of the liquid in the upper chamber when the liquid in the upper chamber is squeezed.

[0064] Reference Figures 1 to 11 The utility model relates to a suspension which is installed on a vehicle body to support a power transmission system.

[0065] Specifically, the mount of the present utility model includes a housing 1, a main rubber component 2, and a hydraulic damping module 3. Among them, the interior of the housing 1 has an installation space, and the housing 1 may include an opening 11; the main rubber component 2 may be installed in the installation space of the housing 1 and partially protrude from the opening 11; the hydraulic damping module 3 may be attached to the end face of the housing 1 and surround the part of the main rubber component 2 that protrudes from the opening. The hydraulic damping module 3 may be configured to provide an additional damping effect when the movement of the powertrain in the downward direction and / or the lateral direction exceeds a threshold value.

[0066] Here, the downward direction may refer to the downward direction in the vertical direction of the vehicle body, and the lateral direction may refer to the lateral direction of the vehicle body.

[0067] At least one mounting bracket 12 may be provided on the outer peripheral surface of the housing 1, as Figure 1 and Figure 2 shown. An example of having four mounting brackets 12 is illustrated in the figure. The mounting brackets 12 may be respectively fastened to the vehicle body so that the mount can be stably installed on the vehicle body. However, those skilled in the art should understand that the number of mounting brackets should not be limited thereto. According to the actual application situation, any number of mounting brackets may be provided, such as two, three, five, etc., which will not be elaborated herein.

[0068] The main rubber component 2 may be provided with connection bolts (not shown), and the connection bolts may be connected to the mounting housing of the powertrain (such as an engine, etc.).

[0069] According to an exemplary embodiment of the present utility model, the connection bolts and the main rubber component 2 may be integrally formed by vulcanization molding.

[0070] When the engine is in an unstarted state, the main rubber component 2 and the hydraulic damping module 3 do not contact each other and are spaced apart by a predetermined distance. At the same time, the mounting housing of the powertrain (such as an engine, etc.) and the hydraulic damping module 3 also do not contact each other and are spaced apart by a predetermined distance.

[0071] The spacing distance in the lateral direction between the mounting housing of the powertrain and the hydraulic damping module 3 corresponds to the threshold value of the movement of the powertrain in the lateral direction.

[0072] Accordingly, when the power train moves a small distance in the downward direction and / or the lateral direction, that is, the movement of the power train is not sufficient to bring the main rubber component 2 into contact with the hydraulic damping module 3 and / or the mounting housing of the power train into contact with the hydraulic damping module 3, the hydraulic damping module 3 does not provide an additional damping effect at this time. On the contrary, when the power train moves a large distance in the downward direction and / or the lateral direction, that is, the movement of the power train is sufficient to bring the main rubber component 2 into contact with the hydraulic damping module 3 and / or the mounting housing of the power train into contact with the hydraulic damping module 3, the hydraulic damping module 3 can provide an additional damping effect at this time.

[0073] Therefore, when the vehicle is in the large lateral / vertical load driving mode, the PT has a large displacement, and at this time, the hydraulic damping module 3 can provide an additional damping effect, thereby absorbing shock energy. When the vehicle is in the small lateral / vertical load driving mode, the displacement generated by the PT is small, and at this time, the hydraulic damping module 3 does not provide an additional damping effect, so there is no additional damping effect to affect other vehicle performances, such as NVH.

[0074] Furthermore, the hydraulic damping module 3 may include: an upper housing 31, a lower housing 32, and a damping unit. Among them, the upper housing 31 has an upper chamber 311 that opens downward; the lower housing 32 is disposed at the bottom of the upper housing 31; and the damping unit is disposed in the lower housing 32.

[0075] With reference to Figure 6 , the upper chamber 311 has a generally U-shaped configuration.

[0076] According to an exemplary embodiment of the present invention, the upper housing 31 may be formed in a ring shape, and the shape of the inner peripheral surface of the ring-shaped upper housing 31 may correspond to the shape of the opening 11 of the outer housing 1. With reference to Figure 2 , Figure 3 and Figure 4 , the inner peripheral surface of the ring-shaped upper housing 31 and the opening 11 have a generally elliptical shape.

[0077] In addition, the expression "the shape of the inner peripheral surface of the ring-shaped upper housing 31 corresponds to the shape of the opening 11 of the outer housing 1" should be understood not only as the shape of the inner peripheral surface of the ring-shaped upper housing 31 being substantially the same as the shape of the opening 11, but also as their sizes being substantially the same.

[0078] A protrusion 312 may be further formed on the inner peripheral surface of the ring-shaped upper housing 31 (with reference to Figure 6 ), and the protrusion 312 is located below the portion of the main rubber component 2 protruding from the opening 11 and is spaced apart from the portion of the main rubber component 2 protruding from the opening 11 by a predetermined distance.

[0079] Cooperate with reference Figure 1 and Figure 6 , the protrusion 312 extends on the inner circumferential surface of the upper housing 31 toward the portion protruding from the opening 11 of the main rubber component 2, so as to selectively contact the portion protruding from the opening 11 of the main rubber component 2 in response to the magnitude of the displacement generated by the PT.

[0080] In an exemplary embodiment of the present invention, the protrusion 312 may be integrally formed on the inner circumferential surface of the upper housing 31. However, those skilled in the art should understand that the protrusion 312 may also be formed as a separate element and then fixed to the inner circumferential surface of the upper housing 31.

[0081] The spacing distance in the vertical direction between the portion protruding from the opening 11 of the main rubber component 2 and the protrusion 312 corresponds to the threshold of the movement of the powertrain in the downward direction.

[0082] According to an exemplary embodiment of the present invention, the upper housing 31 may be made of a rubber material, the lower housing 32 may be made of a metal material (such as steel), and the upper housing 31 and the lower housing 32 may be formed as one body.

[0083] As an example, the upper housing 31 and the lower housing 32 may be formed as one body by vulcanization molding.

[0084] Furthermore, the damping unit may include: a first damping element 33, a second damping element 34, and a bottom film 35. Among them, the first damping element 33 may be formed in a plate shape and include a first opening 331 and a second opening 332; the first damping element 33 may be press-fitted into the second damping element 34 (cooperate with reference Figure 8 ), and the second damping element 34 is disposed in the lower housing 32. Among them, the second damping element 34 may include a first flow path 341 and a second flow path 342 inside it. The starting position of the first flow path 341 corresponds to the position of the first opening 331, the starting position of the second flow path 342 corresponds to the position of the second opening 332, and the first flow path 341 includes a first through hole 343 at its end position, and the second flow path 342 includes a second through hole 344 at its end position; the bottom film 35 has a lower chamber 351 that opens upward, and the bottom film 35 is installed on the lower housing 32 below the second damping element 34.

[0085] In addition, an interference fit is formed between the first damping element 33 and the second damping element 34 and is formed to be sealed for liquid. A seal for liquid is formed between the second damping element 34 and the lower housing 32, and a seal for liquid is formed between the second damping element 34 and the bottom film 35.

[0086] The hydraulic damping module 3 is filled with a liquid. The upper chamber 311 and the lower chamber 351 can accommodate the liquid. The first damping element 33 and the second damping element 34 are arranged between the upper chamber 311 and the lower chamber 351. Through the cooperation of the first damping element 33 and the second damping element 34, the liquid can flow between the upper chamber 311 and the lower chamber 351 through the first opening 331 and the second opening 332 of the first damping element 33 and the first flow path 341 and the second flow path 342 of the second damping element 34.

[0087] The liquid filled in the hydraulic damping module 3 can be mineral oil, synthetic liquid, etc.

[0088] According to an exemplary embodiment of the present invention, the first damping element 33 can be made of a metal material (such as steel), and the second damping element 34 can be made of a plastic material.

[0089] In the shown example, the first flow path 341 and the second flow path 342 are arranged symmetrically with respect to each other (with reference to Figure 10 ), the first opening 331 and the second opening 332 are arranged symmetrically with respect to each other, the first flow path 341 and the second flow path 342 have a U-shaped cross-sectional shape (with reference to Figure 8 ), and the bottom film 35 has a generally W-shaped cross-sectional shape.

[0090] As shown in the figure, the first opening 331 and the second opening 332 have a generally oval shape, and the first through hole 343 and the second through hole 344 have a generally oval shape. However, those skilled in the art should understand that the shapes of the first opening 331, the second opening 332, the first through hole 343, and the second through hole 344 should not be limited thereto, and any other shape that can achieve the same effect is acceptable, which will not be elaborated herein.

[0091] In addition, according to the actual application situation, the positions and sizes of the first opening 331 and the second opening 332 and the sizes of the first flow path 341 and the second flow path 342 (including the cross-sectional size and the total length) can be adjusted arbitrarily, so as to achieve different damping effects.

[0092] For example, when the movement of the powertrain in the downward direction exceeds a threshold value, the portion of the main rubber component 2 protruding from the opening 11 will press the protrusion 312, whereby the liquid in the upper chamber 311 is squeezed, causing some of the liquid to flow through the first opening 331 and the second opening 332 of the first damping element 33, and then the liquid flowing through the first opening 331 and the second opening 332 flows in the first flow path 341 and the second flow path 342 of the second damping element 34, and then flows out of the second damping element 34 through the first through hole 343 of the first flow path 341 and the second through hole 344 of the second flow path 342, and finally the liquid flowing out of the second damping element 34 is received in the lower chamber 351. With reference to Figure 11 , the flow route of the liquid is schematically shown by arrows in the figure.

[0093] For example, when the movement of the powertrain in the lateral direction exceeds a threshold value, the mounting housing of the powertrain will press the outer surface of the upper housing 31 of the hydraulic damping module 3. More specifically, the mounting housing of the powertrain will press the side surface of the upper housing 31 of the hydraulic damping module 3, whereby the liquid in the upper chamber 311 is squeezed, causing some of the liquid to flow through the first opening 331 and the second opening 332 of the first damping element 33, and then the liquid flowing through the first opening 331 and the second opening 332 flows in the first flow path 341 and the second flow path 342 of the second damping element 34, and then flows out of the second damping element 34 through the first through hole 343 of the first flow path 341 and the second through hole 344 of the second flow path 342, and finally the liquid flowing out of the second damping element 34 is received in the lower chamber 351.

[0094] The flow of the liquid as described above consumes energy, whereby the hydraulic damping module 3 can provide an additional damping effect to absorb shock energy.

[0095] Therefore, under large shock driving conditions, the mount of the present utility model can reduce the vertical and lateral post-shake performance.

[0096] In particular, through the additional damping effect provided by the hydraulic damping module 3, the movement of the powertrain under large shock driving conditions can gradually become gentle. When the movement of the powertrain in the downward direction and / or the lateral direction does not exceed the threshold value, some of the liquid received in the lower chamber 351 can flow back to the upper chamber 311 in the direction opposite to the flow route described above.

[0097] According to an exemplary embodiment of the present utility model, the bottom film 35 can be made of a rubber material and an installation flange 352 is formed at the edge portion of the top. With reference to Figure 4 and Figure 8 .

[0098] Since the bottom film 35 is made of a rubber material, when a part of the liquid in the upper chamber 311 flows into the lower chamber 351, the bottom film 35 can elastically deform. When the extrusion of the upper chamber 311 stops, the bottom film 35 can return to its initial shape by elastic force. During this process, a part of the liquid in the lower chamber 351 can flow back into the upper chamber 311. Moreover, after a part of the liquid in the upper chamber 311 has flowed into the lower chamber 351, the pressure in the upper chamber 311 decreases, and the decreased pressure can promote a part of the liquid in the lower chamber 351 to flow back into the upper chamber 311.

[0099] The damping unit may further include a clamping element 36. The upper surface of the mounting flange 352 contacts the bottom surface of the second damping element 34, and the lower surface of the mounting flange 351 contacts the clamping element 36. The clamping element 36 can be supported by the lower housing 32.

[0100] According to an exemplary embodiment of the present invention, the clamping element 36 can be made of a metal material (such as steel).

[0101] Specifically, a plurality of supporting flanges 321 can be formed at the bottom of the lower housing 32, and the plurality of supporting flanges 321 can support the clamping element 36 below the clamping element 36.

[0102] Although an example of mounting the bottom film 35 to the lower housing 32 through the clamping element 36 is shown in the figure, those skilled in the art should understand that the mounting method of the bottom film 35 is not limited thereto.

[0103] According to another embodiment of the present invention, the upper surface of the mounting flange 352 of the bottom film 35 can be directly fixed to the bottom surface of the second damping element 34 by a structural adhesive or the like, thereby reducing the components and assembly steps.

[0104] According to an exemplary embodiment of the present invention, the hydraulic damping module 3 can be formed through the following assembly steps:

[0105] Step 1: The upper housing 31 and the lower housing 32 can be formed into one body by vulcanization molding. At this time, the supporting flanges 321 of the lower housing 32 are vertically positioned;

[0106] Step 2: The first damping element 33 is press-fitted downward into the second damping element 34;

[0107] Step 3: The second damping element 34 that has been fitted with the first damping element 33 is installed into the interior of the lower housing 32 from bottom to top;

[0108] Step 4: Place the upper surface of the mounting flange 352 of the bottom film 35 against the bottom surface of the second damping element 34, and place the clamping element 36 against the lower surface of the mounting flange 352 of the bottom film 35; and

[0109] Step 5: Bend the supporting flange 321 of the lower housing 32 to be horizontally positioned so as to support the clamping element 36.

[0110] In Step 5, the supporting force provided by the supporting flange 321 of the lower housing 32 can be configured such that a liquid-tight seal is formed between the second damping element 34 and the bottom film 35.

[0111] In addition, the operation of filling the hydraulic damping module with liquid can be carried out after Step 1 or Step 3.

[0112] The suspension of the exemplary embodiment of the present utility model can provide an additional damping effect in a large lateral / vertical load driving mode to absorb shock energy.

[0113] In addition, the suspension of the exemplary embodiment of the present utility model does not provide an additional damping effect in a small lateral / vertical load driving mode, so there is no additional damping effect to affect other vehicle performances, such as NVH.

[0114] In addition, the hydraulic damping module of the suspension of the exemplary embodiment of the present utility model is attached to the end face of the housing, so it will not affect the main rubber component of the suspension. Thus, the hydraulic damping module can be used for various different suspensions without considering the requirements of different vehicles, such as requirements for static stiffness, requirements for dynamic stiffness, etc.

[0115] In addition, compared with a bi-directional hydraulic bushing suspension, the suspension of the exemplary embodiment of the present utility model has advantages in terms of weight, layout, and cost.

[0116] The foregoing description of specific exemplary embodiments of the present utility model has been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the present utility model to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teaching. The selection and description of the exemplary embodiments are intended to explain certain principles of the present utility model and its practical application so that those skilled in the art can make and utilize various exemplary embodiments of the present utility model and their different alternative forms and modifications. The scope of the present utility model is intended to be defined by the appended claims and their equivalents.

[0117] Unless otherwise specifically stated or otherwise understood within the context in which it is used, conditional language such as "can", "could", "might", or "may" generally is intended to convey that certain embodiments can, but need not, include certain features and / or elements. Thus, such conditional language generally is not intended to imply that one or more embodiments are in any way required to include the recited features and / or elements.

Claims

1. A suspension for supporting a powertrain, characterized in that, Comprising: A housing having an installation space therein, the housing including an opening; A main rubber component installed in the installation space of the housing and partially protruding from the opening; And A hydraulic damping module attached to an end face of the housing and surrounding a portion of the main rubber component protruding from the opening, the hydraulic damping module configured to provide an additional damping effect when the movement of the powertrain in the downward direction and / or the lateral direction exceeds a threshold.

2. The suspension according to claim 1, characterized in that, At least one mounting bracket is provided on an outer peripheral surface of the housing, and the hydraulic damping module includes: An upper housing having an upper chamber opening downward; A lower housing provided at a bottom of the upper housing; and A damping unit provided in the lower housing.

3. The mount according to claim 2, wherein: The upper housing is formed in an annular shape, and a shape of an inner peripheral surface of the annular upper housing corresponds to a shape of the opening of the housing; A protrusion is further formed on the inner peripheral surface of the annular upper housing, the protrusion being located below a portion of the main rubber component protruding from the opening and spaced apart from the portion of the main rubber component protruding from the opening by a predetermined distance.

4. The suspension according to claim 3, characterized in that, The damping unit includes: A first damping element formed in a plate shape and including a first opening and a second opening; A second damping element, the first damping element being press-fitted into the second damping element, and the second damping element being provided in the lower housing, wherein the second damping element includes a first flow path and a second flow path therein, starting positions of the first flow path and the second flow path respectively correspond to positions of the first opening and the second opening, and a first through hole is included at a termination position of the first flow path, and a second through hole is included at a termination position of the second flow path; and A bottom film having a lower chamber opening upward, the bottom film being installed in the lower housing below the second damping element.

5. The mount according to claim 4, wherein: The bottom film is made of a rubber material and an edge portion at the top is formed with a mounting flange; The damping unit further includes a clamping element; An upper surface of the mounting flange contacts a bottom surface of the second damping element, and a lower surface of the mounting flange contacts the clamping element, and the clamping element is supported by the lower housing.

6. The mount according to claim 5, wherein: The upper housing is made of a rubber material; The lower housing is made of a metal material; The upper housing and the lower housing are formed integrally.

7. The mount according to claim 6, wherein: An interference fit is formed between the first damping element and the second damping element and is formed to be sealed for liquid; A seal for liquid is formed between the second damping element and the lower housing; A seal for liquid is formed between the second damping element and the bottom film.

8. The mount according to claim 7, wherein: The hydraulic damping module is filled with liquid; The upper chamber and the lower chamber are configured to accommodate liquid; The first damping element and the second damping element cooperate such that liquid can flow between the upper chamber and the lower chamber through the first opening and the second opening of the first damping element and the first flow path and the second flow path of the second damping element.

9. The suspension according to claim 8, wherein: The first flow path and the second flow path are arranged symmetrically with respect to each other; The first opening and the second opening are arranged symmetrically with respect to each other; the first flow path and the second flow path have a "U"-shaped cross-sectional shape; The bottom film has a "W"-shaped cross-sectional shape.

10. The suspension according to claim 5, wherein: The first damping element is made of a metallic material; The second damping element is made of a plastic material; The clamping element is made of a metallic material.

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