Suspension structure of power assembly and vehicle

Abstract

The utility model provides a suspension structure of a power assembly and a vehicle. The suspension structure of the power assembly comprises a support arranged at the bottom of the power assembly and a suspension assembly connected between the support and a frame of the vehicle. The suspension assembly is provided with a first inner core used for being connected with the support, a sliding groove is formed in the end of the first inner core and arranged in the vertical direction of the vehicle, and an opening is formed in the top of the sliding groove. The support is provided with a protective shell, and the protective shell is provided with a bearing part located below the support and the suspension assembly. A connecting piece is arranged on the protective shell and arranged in the sliding groove in a sliding mode. According to the suspension structure of the power assembly, the situation that the suspension assembly at the bottom of the power assembly is broken due to underpinning of a vehicle can be improved, so that the use reliability of the suspension assembly is improved, and the safety quality of the whole vehicle is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a suspension structure. Meanwhile, the utility model also relates to a vehicle provided with the suspension structure. Background Art

[0002] In hybrid models, the powertrain layout is mostly in the form of transverse front-wheel drive, and these powertrains mostly adopt a pendulum-type suspension layout structure. The pendulum-type suspension system usually uses the left / right suspension as the suspension point. It can be fixed at the upper end (connected to the body end) and swing at the lower end (connected to the powertrain end) like a pendulum. It has the advantages of simple structure, low cost, good vibration isolation effect and convenient vehicle design and layout, and is increasingly widely used in the field of automotive suspension systems.

[0003] For transverse vehicles that use a pendulum suspension system, the rear suspension assembly should be placed at the bottom of the entire power system. In the specific structure, due to layout restrictions, the rear suspension assembly is usually located at the lowest point in the local position of the vehicle chassis. Therefore, when the vehicle bottoms out, the rear suspension assembly will be bumped and often broken due to bottoming out, which will cause the vehicle to be unable to drive and even cause safety hazards, reducing the safety performance of the entire vehicle. Utility Model Content

[0004] In view of this, the utility model aims to provide a suspension structure of a powertrain to improve the situation where the suspension assembly at the bottom of the powertrain is broken due to the bottoming of the vehicle.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A suspension structure of a powertrain, comprising a bracket arranged at the bottom of the powertrain, and a suspension assembly connected between the bracket and a frame of a vehicle;

[0007] The suspension assembly has a first inner core for connecting the bracket, and a slide groove is provided at the end of the first inner core, the slide groove is arranged along the up and down direction of the vehicle, and the top of the slide groove is provided with an opening;

[0008] The bracket is provided with a protective shell, and the protective shell has a supporting portion located below the bracket and the suspension assembly;

[0009] The protective shell is provided with a connecting piece, and the connecting piece is slidably arranged in the sliding groove.

[0010] Furthermore, the bracket includes an upper bracket and a lower bracket movably arranged on the upper bracket up and down, and the protective shell is arranged on the upper bracket; the lower bracket is suspended on the upper bracket through a first elastic member, and the upper bracket is fixedly connected to the power assembly; a through-hole is provided on the lower bracket, and a part of the connecting member located outside the slide groove is inserted into the through-hole.

[0011] Furthermore, the mounting hole is a long hole arranged along the up-down direction of the vehicle, and the connecting member can move up and down relative to the lower bracket.

[0012] Furthermore, the axis of the first inner core is arranged along the left-right direction of the vehicle, the slide grooves are provided at both ends of the first inner core, and the connecting members are two respectively arranged in the two slide grooves; corresponding to the two connecting members, two penetration holes are provided on the lower bracket.

[0013] Furthermore, a sliding cavity is formed inside the upper bracket, and the lower bracket includes a sliding part slidingly arranged in the sliding cavity, and two connecting arms spaced apart at the bottom of the sliding part; both connecting arms extend downwardly from the upper bracket, the two insertion holes are respectively arranged on the two connecting arms, and the first elastic member is connected between the top of the sliding cavity and the top of the sliding part.

[0014] Furthermore, the axis of the second inner core is arranged parallel to the axis of the first inner core.

[0015] Furthermore, the upper bracket is provided with a connecting ear, and the connecting ear is provided with a connecting hole for connecting to the power assembly.

[0016] Furthermore, the protective shell is connected to the upper bracket via a second elastic member, and can move relative to the upper bracket in the up-down direction of the vehicle, and the connecting member is fixed on the protective shell.

[0017] Furthermore, the protective shell comprises a left protective shell and a right protective shell which are connected by snapping, and the supporting part and the connecting member are both provided on the left protective shell and the right protective shell.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] The suspension structure of the powertrain described in the utility model can protect the end where the first inner core of the suspension assembly and the bottom of the bracket through the supporting part when the powertrain or the bracket is supported, and can drive the connecting piece to move out of the slide groove through the protective shell, so that the connecting piece can be temporarily moved up and out of the slide groove, thereby avoiding strong impact on the suspension assembly caused by the support of the bottom, and then avoiding the suspension assembly from breaking, thereby improving the situation where the suspension assembly at the bottom of the powertrain is broken due to the support of the vehicle.

[0020] In addition, an upper bracket and a lower bracket are provided to move up and down, and the lower bracket is suspended on the upper bracket through a first elastic member. When the power assembly is supported, a buffer can be formed between the upper and lower brackets before the connecting member is released from the slide slot to avoid direct impact on the suspension assembly when supporting the bottom. The insertion hole is set in a long strip shape, and the connecting member moves up and down relative to the lower bracket. When the suspension assembly is supported and swung up, the connecting member is allowed to move up relative to the lower bracket.

[0021] Secondly, the connection piece and the slide groove are both provided in two pieces, which can improve the stability and reliability of the suspension structure under normal working conditions. By providing the sliding cavity and the sliding part, the sliding stability of the lower bracket relative to the upper bracket can be improved, thereby improving the stability and rationality of the overall structure of the bracket. The provision of the connecting ear facilitates the connection and installation between the powertrain and the bracket.

[0022] In addition, the second elastic member can form a buffer between the bracket and the protective shell, reducing the chance of damage to the protective shell. The protective shell is mainly composed of a left protective shell and a right protective shell, and has a simple structure, and is convenient for the construction and assembly of the protective shell.

[0023] Another object of the present invention is to provide a vehicle, wherein the powertrain of the vehicle adopts the suspension structure of the powertrain as described above.

[0024] The vehicle described in the utility model is provided with the above-mentioned suspension structure of the power assembly, which can improve the situation where the suspension assembly at the bottom of the power assembly is broken due to the bottoming of the vehicle, thereby improving the reliability of the suspension assembly and improving the safety quality of the entire vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which constitute part of the present invention, are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention. The directional terms such as front and back, top and bottom involved therein are only used to indicate relative positional relationships and do not constitute improper limitations on the present invention. In the accompanying drawings:

[0026] Figure 1 It is a schematic diagram of the overall structure of the suspension structure of the powertrain according to an embodiment of the utility model;

[0027] Figure 2 It is a structural schematic diagram of the suspension assembly according to an embodiment of the utility model;

[0028] Figure 3 for Figure 1 A schematic diagram of the structure from another perspective of the structure shown in ;

[0029] Figure 4 for Figure 3 Sectional view along AA direction;

[0030] Description of reference numerals:

[0031] 1. Upper bracket; 10. Connecting ear; 100. Connecting hole; 11. Sliding cavity;

[0032] 2. Lower bracket; 20. Sliding portion; 21. Connecting arm; 210. Mounting hole;

[0033] 3. Connecting member; 4. First elastic member; 5. Second elastic member; 6. Protective shell; 60. Supporting portion; 61. Left protective shell; 62. Right protective shell;

[0034] 7. Fastener; 8. Suspension assembly; 80. Suspension rubber; 81. Frame; 82. First inner core; 820. Slide groove; 821. Opening; 83. Second inner core. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0036] In the description of the present invention, it should be noted that if there are terms such as "upper", "lower", "inner", "outer" and the like indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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 cannot be understood as limiting the present invention. In addition, if there are terms such as "first" and "second", they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0037] Taking the vehicle in which the suspension structure of the powertrain described in the utility model is located as an example, the directional words used in the embodiments, such as "up, down, left, right, front, and rear", are defined based on the up and down direction (also known as the height direction, or the Z direction of the whole vehicle), the left and right direction (also known as the width direction, or the Y direction of the whole vehicle), and the front and rear direction (also known as the length direction, or the X direction of the whole vehicle). "Inside and outside" are defined based on the contour of the corresponding parts. For example, "inside" and "outside" are defined based on the contour of the vehicle, and the side of the vehicle contour close to the middle of the vehicle is "inside", and the opposite is "outside".

[0038] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection" and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0039] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0040] Embodiment 1

[0041] The present embodiment relates to a suspension structure of a powertrain, which can improve the situation where the suspension assembly 8 at the bottom of the powertrain is broken due to the bottoming of the vehicle when the powertrain or the bracket is bottomed.

[0042] In terms of overall structure, Figures 1 to 4 As shown, the suspension structure of the powertrain of this embodiment includes a bracket arranged at the bottom of the powertrain, and a suspension assembly 8 connected between the bracket and the frame of the vehicle.

[0043] The suspension assembly 8 has a first inner core 82 for connecting the bracket, and a slide groove 820 is provided at the end of the first inner core 82 . The slide groove 820 is arranged along the up and down direction of the vehicle, and an opening 821 is provided at the top of the slide groove 820 .

[0044] The bracket is provided with a protective shell 6, and the protective shell 6 has a supporting portion 60 located below the bracket and the suspension assembly 8. The protective shell 6 is provided with a connecting member 3, and the connecting member 3 is slidably arranged in the slide groove 820. By providing the supporting portion 60, when the suspension assembly 8 is supported on one side, the end where the first inner core 82 of the suspension assembly 8 is located and the bottom of the bracket can be protected. Figure 2 As shown, the suspension assembly 8 of this embodiment includes a frame 81, a first mounting hole and a second mounting hole provided at both ends of the frame 81, a first inner core 82 provided in the first mounting hole, and a second inner core 83 provided in the second mounting hole.

[0045] Secondly, the first inner core 82 is arranged in the first mounting hole through the suspension rubber 80, and the second inner core 83 is arranged in the second mounting hole through the suspension rubber 80, and the second inner core 83 is used to connect with the vehicle frame. In addition, the related structural parts of the suspension assembly 8 not mentioned can refer to the suspension assembly structure well known to those skilled in the art, especially the rear suspension assembly, and will not be described in detail here.

[0046] At the same time, the powertrain of this embodiment has different structures on different power vehicle models. For example, the powertrain on a fuel vehicle or a hybrid vehicle preferably refers to an engine and a transmission, and the powertrain on an electric vehicle preferably refers to a motor and a reducer, etc.

[0047] Based on the above overall introduction, specifically, in this embodiment, as a preferred implementation form, continue to refer to Figures 1 to 4 As shown, the bracket includes an upper bracket 1 and a lower bracket 2 which is movably arranged on the upper bracket 1 up and down, and a protective shell 6 is arranged on the upper bracket 1.

[0048] The lower bracket 2 is suspended on the upper bracket 1 through the first elastic member 4 , and the upper bracket 1 is fixedly connected to the power assembly. At the same time, a through hole 210 is provided on the lower bracket 2 , and the part of the connecting member 3 located outside the slide groove 820 is penetrated in the through hole 210 .

[0049] It can be understood that an upper bracket 1 and a lower bracket 2 are provided that can move up and down in coordination, and the lower bracket 2 is suspended on the upper bracket 1 by a first elastic member 4. When the power assembly bottoms out, a buffer can be formed between the upper and lower brackets 2 before the connecting member 3 escapes from the slide groove 820, thereby avoiding direct impact on the suspension assembly 8 when bottoming out.

[0050] Furthermore, the lower bracket 2 of this embodiment is maintained in a normal state by the first elastic member 4 and its own weight, that is, the above-mentioned suspension. When the first elastic member 4 is specifically configured, a common spring can be preferably used to improve the suspension stability of the lower bracket 2 and control the cost.

[0051] At the same time, a downwardly recessed inner cavity can be set at the top of the lower bracket 2, and the lower end of the first elastic member 4 is connected to the bottom of the inner cavity, thereby reducing the possibility of the lower bracket 2 sliding out of the sliding cavity 11 by extending the length of the lower bracket 2 in the sliding cavity 11.

[0052] In the specific implementation, in this embodiment, as a preferred implementation form, see Figure 4 As shown, the through hole 210 is a long hole arranged along the up and down direction of the vehicle, and the connecting member 3 can move up and down relative to the lower bracket 2. Therefore, when the suspension assembly 8 is supported and swung up, the connecting member 3 is allowed to move up along the through hole 210 relative to the lower bracket 2, thereby ensuring that the connecting member 3 moves out of the slide groove 820, thereby preventing the suspension assembly 8 from rigidly bearing the impact when supporting the bottom.

[0053] Moreover, in this embodiment, as a preferred implementation form, the axis of the first inner core 82 is arranged along the left-right direction of the vehicle, both ends of the first inner core 82 are provided with a slide groove 820, and the connecting members 3 are two respectively arranged in the two slide grooves 820. At the same time, corresponding to the two connecting members 3, the lower bracket 2 is provided with two through holes 210.

[0054] Here, the number of the connecting member 3 and the number of the slide groove 820 are both two, which can improve the stability and reliability of the suspension structure under normal working conditions, and help ensure the smooth movement and resetting of the connecting member 3 during the upward and downward movement of the connecting member 3.

[0055] In addition, in this embodiment, as a preferred implementation form, see Figure 4 As shown, a sliding cavity 11 is formed inside the upper bracket 1, and the lower bracket 2 includes a sliding portion 20 slidably arranged in the sliding cavity 11, and two connecting arms 21 spaced apart at the bottom of the sliding portion 20.

[0056] The two connecting arms 21 are both extended downward from the upper bracket 1 . The two mounting holes 210 are respectively disposed on the two connecting arms 21 . The first elastic member 4 is connected between the top of the sliding cavity 11 and the top of the sliding portion 20 .

[0057] The advantage of such a setting is that it can improve the sliding stability of the lower bracket 2 relative to the upper bracket 1, thereby improving the stability and rationality of the overall structure of the bracket. Among them, the coordinated use of the connecting arm 21 and the penetration hole 210 can not only ensure the normal movement of the connecting member 3, but also facilitate the weight reduction design.

[0058] Furthermore, in this embodiment, as a preferred implementation form, the axis of the second inner core 83 is arranged parallel to the axis of the first inner core 82 to ensure the connection stability between the suspension assembly 8 and the bracket under normal working conditions.

[0059] Considering the assembly requirements of the bracket and the powertrain, in this embodiment, as a preferred implementation form, still refer to Figure 1 and Figure 4 As shown, the upper bracket 1 is provided with a connecting ear 10, and the connecting ear 10 is provided with a connecting hole 100 for connecting to the power assembly.

[0060] Such an arrangement not only facilitates the connection and installation between the power assembly and the bracket, but also reduces the possibility of the power assembly bottoming out first by arranging the power assembly at the top position of the upper bracket 1 .

[0061] In addition, in this embodiment, as a preferred implementation form, see Figure 1 and Figure 3 As shown, the protective shell 6 is connected to the upper bracket 1 through the second elastic member 5 and can move relative to the upper bracket 1 in the up and down direction of the vehicle, and the connecting member 3 is fixed on the protective shell 6 .

[0062] Here, the second elastic member 5 is provided to form a buffer between the bracket and the protective shell 6, reducing the probability of damage to the protective shell 6. In addition, in a specific implementation, the second elastic member 5 of this embodiment can preferably use the same spring as the first elastic member 4, and corresponding mounting parts can be provided on both the upper bracket 1 and the protective shell 6 during installation, and the two ends of the second elastic member 5 are respectively connected to the two mounting parts.

[0063] Furthermore, in this embodiment, as a preferred implementation form, the protective shell 6 includes a left protective shell 61 and a right protective shell 62 that are connected by buckling, and the left protective shell 61 and the right protective shell 62 are both provided with a supporting portion 60 and a connecting member 3. In combination with the arrangement of the two connecting arms 21 of the above-mentioned lower bracket 2, it can be known that the two supporting portions 60 provided on the left protective shell 61 and the right protective shell 62 can be respectively provided under the two connecting arms 21 to protect them; the two connecting members 3 provided on the left protective shell 61 and the right protective shell 62 are respectively provided in the through holes 210 on the two connecting arms 21. In this way, the structure can be made simple, and the construction and assembly of the protective shell 6 are facilitated.

[0064] It is worth mentioning that the left protective shell 61 and the right protective shell 62 of this embodiment can be connected by fasteners 7, and the two are basically similar in structure and can be regarded as mirror images of each other. The advantage of such a setting is that it is also conducive to reducing mold development costs. The supporting part 60 of this embodiment can be a supporting platform provided at the bottom of the left protective shell 61 and the right protective shell 62.

[0065] In this embodiment, when the vehicle hits an obstacle and drags the bottom, if the obstacle first hits the protective shell 6, the protective shell 6 will move upward, and the connecting member 3 will move upward synchronously with the protective shell 6 until it disengages from the slide groove 820 in the first inner core 82. Then, the protective shell 6 continues to move upward, and drives the end of the suspension assembly 8 provided with the first inner core 82 to deflect upward through the supporting portion 60 (deflecting upward with the second inner core 83 as the turning angle), and the supporting portion 60 can also drive the lower bracket 2 to move upward, thereby realizing the contraction of the overall structure in the Z direction, thereby avoiding damage to the suspension assembly 8.

[0066] If the obstacle hits the power assembly first, the upper bracket 1 will drive the protective shell 6 and the connecting member 3 to move upward through the second elastic member 5. The upward movement of the connecting member 3 will make the end of the suspension assembly 8 with the first inner core 82 have an upward deflection space. At the same time, the first elastic member 4 and the second elastic member 5 will also form a buffering effect to offset the impact. Subsequently, when the power assembly is subjected to a greater impact, the upper bracket 1 will drive the protective shell 6 to move upward through the first elastic member 4 and the second elastic member 5. The supporting portion 60 will drive the end of the suspension assembly 8 with the first inner core 82 to deflect upward (with the second inner core 83 as the corner, deflect upward) and the lower bracket 2 to move upward, thereby realizing the contraction of the overall structure in the Z direction, thereby helping to avoid the impact caused by the suspension assembly 8 rigidly bearing the bottoming.

[0067] When the vehicle passes the obstacle, under the cooperation of the suspension rubber 80, the first elastic member 4, the second elastic member 5, and the gravity of each component, each component returns to its original position and the anti-torsion effect of the suspension assembly 8 is realized again.

[0068] The suspension structure of the powertrain of this embodiment can protect the end where the first inner core 82 of the suspension assembly 8 and the bottom of the bracket through the supporting portion 60 when the powertrain or the bracket is supported, and can drive the connecting member 3 to move out of the slide groove 820 through the protective shell 6, so that the connecting member 3 can be temporarily moved up and out of the slide groove 820, thereby avoiding strong impact on the suspension assembly 8 caused by the support of the bottom, and further avoiding the suspension assembly 8 from breaking, thereby improving the situation where the suspension assembly 8 at the bottom of the powertrain is broken due to the support of the vehicle.

[0069] Embodiment 2

[0070] This embodiment relates to a vehicle, the powertrain of which adopts the suspension structure of the powertrain in the first embodiment.

[0071] The vehicle of this embodiment, by setting the suspension structure of the powertrain in the first embodiment, can avoid the suspension assembly 8 at the bottom of the powertrain from breaking due to the bottoming of the vehicle, thereby improving the safety of the powertrain and the suspension assembly 8, thereby improving the quality and market competitiveness of the entire vehicle.

[0072] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A suspension structure for a powertrain, characterized in that: It comprises a bracket arranged at the bottom of the powertrain, and a suspension assembly (8) connected between the bracket and the frame of the vehicle; The suspension assembly (8) has a first inner core (82) for connecting to the bracket, and a slide groove (820) is provided at the end of the first inner core (82), the slide groove (820) is arranged along the up and down direction of the vehicle, and the top of the slide groove (820) is provided with an opening (821); A protective shell (6) is provided on the bracket, and the protective shell (6) has a supporting portion (60) located below the bracket and the suspension assembly (8); The protective shell (6) is provided with a connecting piece (3), and the connecting piece (3) is slidably arranged in the sliding groove (820).

2. The suspension structure of the powertrain according to claim 1, characterized in that: The bracket comprises an upper bracket (1), and a lower bracket (2) which is arranged on the upper bracket (1) so as to be movable up and down, and the protective shell (6) is arranged on the upper bracket (1); The lower bracket (2) is suspended on the upper bracket (1) via a first elastic member (4), and the upper bracket (1) is fixedly connected to the power assembly; The lower bracket (2) is provided with a through hole (210), and the portion of the connecting member (3) located outside the slide groove (820) is inserted into the through hole (210).

3. The suspension structure of the powertrain according to claim 2, characterized in that: The insertion hole (210) is a long hole arranged along the up and down direction of the vehicle, and the connecting member (3) can move up and down relative to the lower bracket (2).

4. The suspension structure of the powertrain according to claim 3, characterized in that: The axis of the first inner core (82) is arranged along the left-right direction of the vehicle, the two ends of the first inner core (82) are provided with the slide grooves (820), and the connecting members (3) are two respectively arranged in the two slide grooves (820); Corresponding to the two connecting members (3), the lower bracket (2) is provided with two mounting holes (210).

5. The suspension structure of the powertrain according to claim 4, characterized in that: The upper bracket (1) has a sliding cavity (11) formed inside, and the lower bracket (2) comprises a sliding portion (20) slidably arranged in the sliding cavity (11), and two connecting arms (21) arranged at intervals at the bottom of the sliding portion (20); The two connecting arms (21) are both extended downwardly from the upper bracket (1), the two mounting holes (210) are respectively arranged on the two connecting arms (21), and the first elastic member (4) is connected between the top of the sliding cavity (11) and the top of the sliding portion (20).

6. The suspension structure of the powertrain according to claim 4, characterized in that: The suspension assembly (8) comprises a frame (81), a first mounting hole and a second mounting hole provided at two ends of the frame (81), and a second inner core (83) provided in the second mounting hole, the first inner core (82) being provided in the first mounting hole, and the axis of the second inner core (83) being arranged parallel to the axis of the first inner core (82).

7. The suspension structure of a powertrain according to claim 2, characterized in that: The upper bracket (1) is provided with a connecting ear (10), and the connecting ear (10) is provided with a connecting hole (100) for connecting to the power assembly.

8. The suspension structure of a powertrain according to any one of claims 2 to 7, characterized in that: The protective shell (6) is connected to the upper bracket (1) via a second elastic member (5) and is movable relative to the upper bracket (1) in the up and down directions of the vehicle. The connecting member (3) is fixedly mounted on the protective shell (6).

9. The suspension structure of the powertrain according to claim 8, characterized in that: The protective shell (6) comprises a left protective shell (61) and a right protective shell (62) which are connected by buckling, and the left protective shell (61) and the right protective shell (62) are both provided with the supporting portion (60) and the connecting member (3).

10. A vehicle, characterized in that: The powertrain of the vehicle adopts the suspension structure of the powertrain according to any one of claims 1 to 9.

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