Power assembly mounting structure and vehicle

Abstract

The utility model provides a power assembly installation structure and a vehicle. The power assembly installation structure comprises a suspension arranged on a power assembly shell. A connecting part is arranged on the power assembly shell, the suspension comprises an outer pipe, an inner core and an elastic body arranged between the outer pipe and the inner core, and the inner core is directly connected to the power assembly shell through the connecting part. According to the power assembly installation structure, the connecting part is arranged on the power assembly shell, the suspended inner core can be directly connected to the power assembly shell through the connecting part, a traditional suspension support does not need to be arranged, and therefore the types and the number of parts can be reduced, and the weight and the production cost can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle parts, and in particular to a power assembly installation structure. Meanwhile, the utility model also relates to a vehicle provided with the power assembly installation structure. Background Art

[0002] With the rapid development of automobile technology, the automobile industry has undergone tremendous changes. In order to meet the concept of energy conservation and emission reduction, pure electric vehicles have emerged. The pure electric vehicle powertrain (drive axle) is connected to the frame through suspension components to form a system. The purpose is to absorb the vibration of the powertrain itself and weaken the road excitation force through the suspension, respond to the vibration generated by the powertrain, and ensure that the key parts of the drive axle are protected during the use of the vehicle.

[0003] The existing suspension system is mostly composed of three suspension assemblies and one or three suspension brackets. The suspension assembly and the suspension bracket and the powertrain (drive axle) are mostly designed as independent structures or have at most two integrated designs, which leads to a large number of types and quantities of parts in the system, and further leads to a large number of control factors for the tolerances between the parts, and poor assembly controllability.

[0004] In addition, in the powertrain installation, in order to ensure the connection strength, the connection parts, material physical properties, bolt slip rate and other factors are selected, and there are many types and quantities of standard parts, and the standard parts are heavy and costly. In addition, in order to ensure the performance indicators such as strength, stiffness, and modality between various systems, the connection parts of the drive axle housing have problems such as thick materials and high material consumption, which are heavy and costly. Utility Model Content

[0005] In view of this, the utility model aims to provide a powertrain installation structure to reduce the number of components and production costs.

[0006] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0007] A powertrain mounting structure includes a suspension arranged on a powertrain housing; the powertrain housing is provided with a connecting portion, the suspension includes an outer tube, an inner core, and an elastic body arranged between the outer tube and the inner core, and the inner core is directly connected to the powertrain housing through the connecting portion.

[0008] Furthermore, the powertrain housing includes a motor housing, and the suspension is provided on the motor housing; the connecting portion includes a first threaded hole provided on the motor housing.

[0009] Furthermore, the motor housing is provided with a first outwardly protruding block, and the first threaded hole is provided on the first block; the first block abuts against the inner core and is used to limit the axial displacement of the inner core.

[0010] Furthermore, the powertrain housing includes a reducer housing, on which the suspension is provided; and the connecting portion includes a second threaded hole provided on the reducer housing.

[0011] Furthermore, the reducer housing is provided with a second outwardly protruding block, and the second threaded hole is provided on the second block; the second block abuts against the inner core to limit the axial displacement of the inner core.

[0012] Furthermore, the powertrain housing includes an intermediate housing located in the middle, and the suspension is provided on the intermediate housing; an outwardly extending first mounting block is provided on the intermediate housing, and the connecting portion includes a third threaded hole provided on the first mounting block.

[0013] Furthermore, the intermediate shell is provided with an outwardly extending second mounting block, and the suspension is arranged between the second mounting block and the first mounting block, and the two ends of the inner core are respectively abutted against the first mounting block and the second mounting block; corresponding to the third threaded hole, a through hole is provided on the second mounting block.

[0014] Furthermore, a groove is provided on a side of the first mounting block facing away from the suspension; there are multiple grooves, and multiple first reinforcing ribs that are intertwined and connected are formed on the first mounting block.

[0015] Furthermore, a second reinforcing rib is provided on a side of the second mounting block facing away from the suspension; a plurality of the second reinforcing ribs are radially arranged with the through hole as the center.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] The powertrain mounting structure described in the utility model provides a connecting portion on the powertrain housing so that the suspended inner core is directly connected to the powertrain housing through the connecting portion, without the need to provide a traditional suspension bracket, thereby helping to reduce the types and quantities of parts and components, and helping to reduce weight and production costs.

[0018] In addition, the connecting portion includes a first threaded hole provided on the motor housing, which has the advantages of simple structure and convenient suspension connection. The first threaded hole is provided on the first protrusion, and the first protrusion abuts against the inner core to limit the axial displacement of the inner core, and there is no need to set a separate limiting structure, thereby further reducing the number of parts and components, and helping to reduce the overall weight and production costs. The connecting portion includes a second threaded hole provided on the reducer housing, which is convenient for suspension connection through the second threaded hole, and has a simple structure and good connection effect. The second threaded hole is provided on the second protrusion, and can be abutted against the inner core with the help of the second protrusion, and there is no need to set a separate limiting structure, which is conducive to improving the integration of the reducer housing.

[0019] In addition, by providing a protruding first mounting block on the intermediate housing, the connecting portion includes a third threaded hole provided on the first mounting block, which is conducive to directly installing the suspension on the first mounting block, and the structure of the first mounting block and the third threaded hole is simple and easy to arrange and implement. The provision of the second mounting block and the through hole is conducive to improving the installation stability of the suspension on the intermediate housing. The groove on the first mounting block is conducive to reducing the weight of the first mounting block, and the first reinforcing rib is conducive to ensuring the structural strength of the first mounting block. The provision of the second reinforcing rib on the second mounting block is conducive to improving the connection strength between the second mounting block and the suspension.

[0020] In addition, another object of the present invention is to provide a vehicle, on which the powertrain mounting structure as described above is provided.

[0021] The vehicle described in the utility model, by providing the powertrain mounting structure as described above, is conducive to improving the structural integration of the powertrain housing, reducing the types and quantities of parts, thereby helping to improve assembly efficiency and lightweight vehicles, and helping to reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0023] Figure 1 It is a structural schematic diagram of the power assembly housing and the power assembly mounting structure in an assembled state according to an embodiment of the utility model;

[0024] Figure 2 It is a schematic structural diagram of the power assembly housing according to an embodiment of the utility model at a first viewing angle;

[0025] Figure 3 It is a schematic structural diagram of the powertrain housing according to an embodiment of the utility model at a second viewing angle;

[0026] Figure 4This is a schematic structural diagram of the first protrusion and the first threaded hole according to an embodiment of the utility model;

[0027] Figure 5 It is a schematic structural diagram of the powertrain housing described in an embodiment of the utility model at a third viewing angle.

[0028] Description of reference numerals:

[0029] 1. Intermediate housing; 2. Motor housing; 3. Reducer housing; 4. First suspension; 5. Second suspension; 6. Third suspension;

[0030] 100, powertrain housing; 101, first mounting block; 1011, third threaded hole; 1012, groove; 1013, first reinforcing rib; 102, second mounting block; 1021, through hole; 1022, second reinforcing rib;

[0031] 201, first threaded hole; 202, first protrusion; 203, third reinforcing rib; 204, first connecting column;

[0032] 301. Second threaded hole; 302. Second connecting column; 303. Fourth reinforcing rib. DETAILED DESCRIPTION

[0033] 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.

[0034] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicating the orientation or positional relationship, 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, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0035] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0036] This embodiment relates to a powertrain installation structure, which aims to reduce the number of components by optimizing its own structure, thereby helping to reduce production costs.

[0037] In terms of overall structure, the powertrain mounting structure includes a suspension provided on the powertrain housing 100. The powertrain housing 100 is provided with a connecting portion, and the suspension includes an outer tube, an inner core, and an elastic body provided between the outer tube and the inner core, and the inner core is directly connected to the powertrain housing 100 through the connecting portion.

[0038] The powertrain mounting structure of the present embodiment provides a connecting portion on the powertrain housing 100 so that the suspended inner core can be directly connected to the powertrain housing 100 through the connecting portion, without providing a traditional suspension bracket, thereby helping to reduce the types and quantities of parts and components, and helping to reduce weight and production costs.

[0039] Based on the above overall introduction, Figure 1 As shown in , the power assembly housing 100 in this embodiment includes a motor housing 2, a suspension is provided on the motor housing 2, and the connecting portion includes a first threaded hole 201 provided on the motor housing 2. The motor housing 2 is located on the right side of the power assembly housing 100. To facilitate the distinction from the suspension hereinafter, the suspension provided on the motor housing 2 is referred to as the first suspension 4.

[0040] As a preferred embodiment, Figure 1 and Figure 2 As shown in the figure, the connection portion includes a first threaded hole 201 provided on the motor housing 2, which has the advantages of simple structure and convenient connection of the first suspension 4. The first suspension 4 in this embodiment can be installed on the motor housing 2 by screwing the first bolt passing through its inner core and the first threaded hole 201. Compared with the scheme of providing a first suspension 4 bracket for installing the first suspension 4, the first suspension 4 bracket is installed on the motor housing 2 by multiple bolts.

[0041] In this embodiment, only one first threaded hole 201 is provided on the motor housing 2, and the first suspension 4 can be installed by the cooperation of the first threaded hole 201 and a first bolt. It is not necessary to provide a first suspension bracket and a bolt for installing the first suspension bracket, which is conducive to reducing the types and number of parts, thereby helping to reduce production costs. In addition, the reduction in the number of parts is also conducive to improving the installation efficiency of the first suspension 4 and helping to reduce the weight of the powertrain.

[0042] To facilitate the formation of the first threaded hole 201, a first protruding connecting column 204 is provided on the outer side of the motor housing 2, and the first threaded hole 201 is provided in the first connecting column 204. To further improve the structural strength of the first threaded hole 201, as shown in FIG. Figure 3 As shown in , a plurality of third reinforcing ribs 203 arranged at intervals may be further provided on the outer periphery of the first connecting column 204 , and the plurality of third reinforcing ribs 203 may be extended along the axial direction of the first connecting column 204 .

[0043] As a preferred embodiment, the motor housing 2 is provided with a first protruding block 202, the first threaded hole 201 is provided on the first protruding block 202, the first protruding block 202 abuts against the inner core and is used to limit the axial displacement of the inner core. The first threaded hole 201 is provided on the first protruding block 202, and the first protruding block 202 abuts against the inner core to limit the axial displacement of the inner core, and there is no need to provide a separate limiting structure, thereby further reducing the number of parts and components, and helping to reduce the overall weight and production cost.

[0044] In terms of specific structure, Figure 4 As shown in the figure, the outer side surface of the first protrusion 202 is rectangular, the first connecting column 204 is located inside the first protrusion 202, and the end surface of the first connecting column 204 is corresponding to the outer side surface of the first protrusion 202. With the first bolt and the first threaded hole 201 being tightened, the inner core of the first suspension 4 can abut against the first protrusion 202, which is conducive to improving the installation effect of the first suspension 4. Of course, in addition to the rectangular shape shown in the figure, the outer side surface of the first protrusion 202 can also be other geometric shapes such as square or circle.

[0045] It should be noted that when the first protrusion 202 is provided, the structural strength of the first threaded hole 201 can be improved by the first protrusion 202, and in this case, there is no need to provide the third reinforcing rib 203. In addition, the first connecting column 204 can also be integrated with the first protrusion 202, in which case, there is no need to provide the first connecting column 204 separately, and the first threaded hole 201 can be directly formed in the first protrusion 202.

[0046] like Figure 1 and Figure 5 As shown in , the power assembly housing 100 in this embodiment includes a reducer housing 3, a suspension is provided on the reducer housing 3, and the connecting portion includes a second threaded hole 301 provided on the reducer housing 3. The reducer housing 3 is located on the left side of the power assembly housing 100 relative to the motor housing 2. In order to facilitate the distinction from other suspensions, the suspension provided on the reducer housing 3 is referred to as the second suspension 5.

[0047] The second threaded hole 301 in this embodiment also has the advantages of simple structure and convenient connection of the second suspension 5. The second suspension 5 can be installed on the reducer housing 3 by screwing the second bolt passing through the inner core of the second suspension 5 and the second threaded hole 301. There is no need to set the second suspension bracket in the traditional structure and the bolt for installing the second suspension bracket. It is not only conducive to further reducing the types and number of parts, thereby reducing production, but also conducive to improving the installation efficiency of the second suspension 5 and lightening the powertrain.

[0048] In order to facilitate the formation of the second threaded hole 301, a second protruding connecting column 302 is provided on the outer side of the reducer housing 3, and the second threaded hole 301 is provided in the second connecting column 302. In order to further improve the structural strength of the second threaded hole 301, as shown in FIG. Figure 5 As shown in the figure, a plurality of fourth reinforcing ribs 303 are arranged at intervals on the outer periphery of the second connecting column 302, and the plurality of fourth reinforcing ribs 303 extend radially along the second connecting column 302 and are connected to other mounting points on the reducer housing 3, thereby improving the structural strength of the mounting points on the reducer housing 3.

[0049] As a preferred embodiment, the reducer housing 3 is provided with a second protruding block, the second threaded hole 301 is provided on the second protruding block, and the second protruding block abuts against the inner core to limit the axial displacement of the inner core. Here, the second threaded hole 301 is provided on the second protruding block, and the second protruding block can abut against the inner core without providing a separate limiting structure, which is conducive to improving the integration of the reducer housing 3.

[0050] The structure of the second protrusion in this embodiment and the positional relationship between the second protrusion and the second threaded hole 301 are similar to Figure 4 The first protrusion 202 and the first threaded hole 201 are substantially the same, and are not described in detail herein. In specific implementation, the specification of the second protrusion can be determined according to the use requirements.

[0051] In the above structure, by setting the first threaded hole 201 on the first connecting column 204 and the second threaded hole 301 on the second connecting column 302, the problem of the prior art that the connecting standard part has a long thread and invades the powertrain housing 100 can be avoided, thereby facilitating the arrangement of precision components inside the motor vehicle assembly and the structural design space. At the same time, the torque return, abnormal noise and breakage caused by insufficient slip rate due to shortening or eliminating the connecting standard part can also be avoided.

[0052] As a preferred embodiment, the powertrain housing 100 includes an intermediate housing 1 located in the middle, and a suspension is provided on the intermediate housing 1. An outwardly projecting first mounting block 101 is provided on the intermediate housing 1, and the connecting portion includes a third threaded hole 1011 provided on the first mounting block 101. Here, the suspension provided on the intermediate housing 1 is referred to as the third suspension 6. In this embodiment, by providing an outwardly projecting first mounting block 101 on the intermediate housing 1, and the connecting portion includes a third threaded hole 1011 provided on the first mounting block 101, it is convenient to directly install the suspension on the first mounting block 101, and the structure of the first mounting block 101 and the third threaded hole 1011 is simple and easy to arrange and implement.

[0053] In terms of specific structure, combined Figure 1 , Figure 2 as well as Figure 5As shown in the figure, the intermediate housing 1 is located between the motor housing 2 and the reducer housing 3, and is connected to the motor housing 2 and the reducer housing 3 respectively. The first mounting block 101 is extended to the rear of the intermediate housing 1, and the third threaded hole 1011 is provided at the rear end of the first mounting block 101. In order to facilitate the formation of the third threaded hole 1011, the third threaded hole 1011 is specifically provided through the rear end of the first mounting block 101.

[0054] The third suspension 6 in this embodiment can be installed on the first mounting block 101 by screwing the third bolt passing through the inner core and the third threaded hole 1011. In this case, the third suspension bracket and the bolts used to install the third suspension bracket can also be eliminated, which has the effect of reducing the types and number of parts, further reducing weight and production costs, and further improving assembly efficiency.

[0055] like Figure 5 As shown in the figure, the width of the first mounting block 101 is gradually reduced from the front to the rear, which is conducive to improving the connection strength between the first mounting block 101 and the intermediate housing 1. In addition, a groove 1012 is provided on the side of the first mounting block 101 facing away from the suspension, and there are multiple grooves 1012, and multiple first reinforcing ribs 1013 interwoven and connected are formed on the first mounting block 101. Here, the groove 1012 on the first mounting block 101 is conducive to reducing the weight of the first mounting block 101, and the multiple first reinforcing ribs 1013 are conducive to ensuring the structural strength of the first mounting block 101.

[0056] As a preferred embodiment, Figure 1 , Figure 2 as well as Figure 5 As shown in the figure, the middle housing 1 is provided with an outwardly extending second mounting block 102, and is suspended between the second mounting block 102 and the first mounting block 101, and the two ends of the inner core are respectively in contact with the first mounting block 101 and the second mounting block 102. Corresponding to the third threaded hole 1011, the second mounting block 102 is provided with a through hole 1021. In this embodiment, the provision of the second mounting block 102 and the through hole 1021 is conducive to improving the installation stability of the suspension on the middle housing 1.

[0057] In terms of detailed structure, the second mounting block 102 is spaced apart from the first mounting block 101 and also extends to the rear of the intermediate housing 1. The width of the second mounting block 102 is also gradually reduced from the front to the rear, and the through hole 1021 is specifically located at the free end of the second mounting block 102. The third bolt passes through the through hole 1021 and the inner core of the third suspension 6 and is screwed to the third threaded hole 1011, thereby installing the third suspension 6 between the first mounting block 101 and the second mounting block 102.

[0058] Further, such as Figure 2As shown in FIG, a second reinforcing rib 1022 is provided on the side of the second mounting block 102 facing away from the third suspension 6. The second reinforcing rib 1022 is a plurality of radiatingly arranged centered on the through hole 1021. The arrangement of the plurality of second reinforcing ribs 1022 on the second mounting block 102 is conducive to improving the connection strength between the second mounting block 102 and the third suspension 6.

[0059] The provision of the first reinforcing rib 1013 and the second reinforcing rib 1022 in this embodiment can utilize the characteristics of high reinforcement stability and targeted and concentrated materials to improve the strength, stiffness and modal performance, thereby enhancing the suspension's ability to absorb the powertrain's own vibration and weaken the vibration response of the powertrain to the road excitation force.

[0060] The powertrain mounting structure in this embodiment, by arranging the connection part for mounting the suspension on the powertrain housing 100, is conducive to improving the structural integration of the powertrain housing 100, reducing the types and number of parts, greatly simplifying the assembly process of the suspension, and thus helping to improve the installation efficiency. At the same time, the powertrain mounting structure also has the advantages of simple structure and easy implementation.

[0061] In addition, the present embodiment also relates to a vehicle, on which the powertrain mounting structure as described above is provided.

[0062] Specifically, the bushing in the first suspension 4 is press-fitted to the right longitudinal beam of the subframe, the bushing in the second suspension 5 is press-fitted to the left longitudinal beam of the subframe, and the third suspension 6 is screwed to the cross beam of the subframe and then assembled with the drive axle through a tightening screwing process.

[0063] The vehicle of this embodiment, by providing the powertrain installation structure as described above, is conducive to improving the structural integration of the powertrain housing 100, reducing the types and number of parts, thereby improving assembly efficiency and vehicle weight reduction, and reducing production costs. It is also conducive to improving the assembly convenience among the drive axle, suspension, and subframe by reducing the number of parts.

[0064] 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 powertrain installation structure, characterized in that: It comprises a suspension arranged on a powertrain housing (100); The power assembly housing (100) is provided with a connecting portion, the suspension comprises an outer tube, an inner core, and an elastic body arranged between the outer tube and the inner core, and the inner core is directly connected to the power assembly housing (100) via the connecting portion.

2. The powertrain installation structure according to claim 1, characterized in that: The powertrain housing (100) comprises a motor housing (2), and the motor housing (2) is provided with the suspension; The connecting portion comprises a first threaded hole (201) provided on the motor housing (2).

3. The powertrain installation structure according to claim 2, characterized in that: The motor housing (2) is provided with a first protruding block (202), and the first threaded hole (201) is provided on the first protruding block (202); The first protrusion (202) abuts against the inner core and is used to limit the axial displacement of the inner core.

4. The powertrain installation structure according to claim 1, characterized in that: The powertrain housing (100) comprises a reducer housing (3), and the reducer housing (3) is provided with the suspension; The connecting portion comprises a second threaded hole (301) provided on the reducer housing (3).

5. The powertrain installation structure according to claim 4, characterized in that: The reducer housing (3) is provided with a second protruding block, and the second threaded hole (301) is provided on the second protruding block; The second protrusion abuts against the inner core to limit the axial displacement of the inner core.

6. The powertrain installation structure according to claim 1, characterized in that: The powertrain housing (100) comprises an intermediate housing (1) located in the middle, and the intermediate housing (1) is provided with the suspension; The intermediate housing (1) is provided with a first protruding mounting block (101), and the connecting portion comprises a third threaded hole (1011) provided on the first mounting block (101).

7. The powertrain installation structure according to claim 6, characterized in that: The intermediate shell (1) is provided with an outwardly extending second mounting block (102), and the suspension is arranged between the second mounting block (102) and the first mounting block (101), and two ends of the inner core are respectively in contact with the first mounting block (101) and the second mounting block (102); Corresponding to the third threaded hole (1011), the second mounting block (102) is provided with a through hole (1021).

8. The powertrain installation structure according to claim 6, characterized in that: A groove (1012) is provided on a side of the first mounting block (101) facing away from the suspension; There are a plurality of grooves (1012), and a plurality of first reinforcing ribs (1013) that are interwoven and connected are formed on the first mounting block (101).

9. The powertrain installation structure according to claim 7, characterized in that: A second reinforcing rib (1022) is provided on a side of the second mounting block (102) facing away from the suspension; The second reinforcing ribs (1022) are multiple and radially arranged with the through hole (1021) as the center.

10. A vehicle, characterized in that: The vehicle is provided with a powertrain mounting structure according to any one of claims 1 to 9.

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