Motor rear suspension support mounting structure and electric vehicle

Abstract

The utility model relates to a motor rear suspension support mounting structure and an electric vehicle, the motor rear suspension support mounting structure comprises a driving motor and a frame longitudinal beam, and further comprises a rear suspension support, the rear suspension support comprises a supporting bottom plate and side plates located on the two sides of the supporting bottom plate, and the supporting bottom plate and the side plates are integrally formed; each side plate comprises an inclined plate connected with the end of the supporting bottom plate and a vertical plate connected with the other end of the inclined plate, and the two inclined plates incline in the direction away from the driving motor so that a containing groove can be formed between the two inclined plates and the supporting bottom plate to install the driving motor. And the rear suspension cushion is installed between the driving motor and the supporting bottom plate, and the two vertical plates are connected with the two frame longitudinal beams respectively. The mounting structure is convenient to assemble and high in reliability.

Description

Technical Field

[0001] The present disclosure relates to the field of vehicle component installation, and in particular, to a motor rear suspension bracket installation structure and an electric vehicle. Background Art

[0002] In recent years, as the country's requirements for automobile energy conservation and emission reduction have become increasingly stringent, new energy vehicles have rapidly emerged. Among them, heavy-duty trucks, as high-energy consumption, high-emission logistics equipment, have also seen their electrification process accelerate significantly. The drive motor, as one of the core elements of electric heavy-duty trucks, determines the core performance indicators of electric heavy-duty trucks, such as acceleration, climbing and maximum speed. Whether it can be properly installed is one of the important guarantees for bringing out these excellent performances.

[0003] At present, the motor rear suspension bracket installation structure of electric heavy trucks is mainly composed of multi-section parts. Due to the need for manual assembly, there are certain errors, which leads to reduced installation accuracy of parts, which is very unfavorable for overall production and assembly. At the same time, the large number of parts also leads to high costs, which is not conducive to lightweighting. Utility Model Content

[0004] An object of the present disclosure is to provide a motor rear suspension bracket mounting structure, which is easy to assemble and has high reliability.

[0005] In order to achieve the above-mentioned object, the present disclosure provides a motor rear suspension bracket mounting structure, including a drive motor and a frame longitudinal beam, and also includes:

[0006] A rear suspension bracket, comprising a support bottom plate and two side plates located on both sides of the support bottom plate, wherein the support bottom plate and the side plates are integrally formed, wherein the side plates comprise an inclined plate connected to an end of the support bottom plate and a vertical plate connected to the other end of the inclined plate, and the two inclined plates are respectively inclined in a direction away from the drive motor to form a receiving groove with the support bottom plate to install the drive motor;

[0007] and a rear suspension cushion, which is installed between the driving motor and the supporting bottom plate, and the two vertical plates are respectively connected to the two frame longitudinal beams.

[0008] Optionally, the side plate and the supporting bottom plate are both constructed as U-shaped plates with openings facing away from the driving motor.

[0009] Optionally, a reinforcing plate is further provided on a side of the rear suspension bracket facing away from the drive motor, and both ends of the reinforcing plate extend to the vertical plate and the supporting bottom plate respectively to have a vertical plate section, an inclined plate section and a bottom plate section respectively, and the reinforcing plate is respectively fitted with the side plate and the supporting bottom plate.

[0010] Optionally, a plurality of shock-absorbing holes are evenly spaced along the extending direction of the inclined plate section.

[0011] Optionally, the bottom plate section is provided with an avoidance hole.

[0012] Optionally, the side panels are mounted on the outside of the frame rails.

[0013] Optionally, the vertical plate is provided with a plurality of fixing holes spaced apart in a vertical direction thereof, so as to be mounted to the frame longitudinal rail by passing a first fastener through the fixing holes.

[0014] Optionally, two rear suspension pads are provided between the drive motor and the support base plate, and two groups of mounting holes are symmetrically arranged on the support base plate. The top of each rear suspension pad is connected to the transition connecting plate of the drive motor, and the bottom is respectively installed in the two groups of mounting holes through second fasteners to connect to the support base plate.

[0015] Optionally, at least one weight-reducing sewage discharge hole is further provided on the supporting base plate, and the weight-reducing sewage discharge hole is arranged between the two groups of mounting holes.

[0016] According to another aspect of the present disclosure, an electric vehicle is further provided, comprising the motor rear suspension bracket mounting structure disclosed above.

[0017] Through the above technical solution, the main body of the rear suspension bracket is formed by integral bending, which is easy to process and can improve the overall structural strength and rigidity, and is convenient for later pre-installation. Among them, the accommodating groove provides sufficient installation space for the drive motor; the support base plate is firmly connected to the drive motor through the rear suspension cushion; the vertical plate is arranged parallel to the frame longitudinal beam to achieve surface installation with the frame longitudinal beam without the need for additional parts for transition connection, which not only improves the convenience of assembly, but also the rear suspension bracket disclosed in the present invention can realize the surrounding installation of the drive motor, and the shock-absorbing effect of the rear suspension cushion can further ensure the reliability and stability of assembly.

[0018] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0020] Figure 1 is a structural schematic diagram of a rear suspension bracket provided according to a specific embodiment of the present disclosure;

[0021] Figure 2 It is a schematic diagram of the motor rear suspension bracket installation structure provided according to a specific embodiment of the present disclosure.

[0022] Description of Reference Numerals

[0023] 1-rear suspension bracket, 11-support base plate, 111-mounting hole, 112-weight reduction and sewage discharge hole, 12-side plate, 121-inclined plate, 122-vertical plate, 1221-fixing hole, 2-rear suspension cushion, 3-drive motor, 31-transition connecting plate, 4-frame longitudinal beam, 5-reinforcement plate, 51-vertical plate section, 52-inclined plate section, 521-shock absorption hole, 53-bottom plate section, 531-avoidance hole, 6-first fastener, 7-second fastener. DETAILED DESCRIPTION

[0024] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0025] In this disclosure, unless otherwise stated, directional words such as "upper" and "lower" generally refer to Figure 2 The upper and lower parts shown in the drawings. In addition, the terms "first", "second", etc. used in the present disclosure are intended to distinguish one element from another element and do not represent order and importance. In addition, in the following description, when referring to the drawings, unless otherwise explained, the same reference numerals in different drawings represent the same or similar elements. It will be understood by those skilled in the art that the above definitions are only used to explain and illustrate the present disclosure and are not intended to be limiting.

[0026] According to a specific embodiment of the present disclosure, a motor rear suspension bracket mounting structure is provided. Figure 1 to Figure 2 One embodiment is shown. Figure 1 and Figure 2 As shown, the motor rear suspension bracket mounting structure includes a rear suspension bracket 1, a rear suspension cushion 2, a drive motor 3 and a frame longitudinal beam 4, wherein the rear suspension bracket 1 includes a support base plate 11 and two side plates 12 located on both sides of the support base plate 11, the support base plate 11 and the side plates 12 are integrally formed, wherein the side plates 12 include an inclined plate 121 connected to the end of the support base plate 11 and a vertical plate 122 connected to the other end of the inclined plate 121, the two inclined plates 121 are respectively inclined in a direction away from the drive motor 3 to form a receiving groove between the support base plate 11 to install the drive motor 3; the rear suspension cushion 2 is installed between the drive motor 3 and the support base plate 11, and the two vertical plates 122 are respectively connected to the two frame longitudinal beams 4.

[0027] Through the above technical solution, the main body of the rear suspension bracket 1 is formed by integral bending, which is easy to process and can improve the overall structural strength and rigidity, and is convenient for later pre-installation. Among them, the accommodating groove provides sufficient installation space for the drive motor 3; the support base plate 11 is firmly connected to the drive motor 3 through the rear suspension cushion 2; the vertical plate 122 is arranged parallel to the frame longitudinal beam 4 to achieve surface installation with the frame longitudinal beam 4 and does not require additional parts for transition connection, which not only improves the convenience of assembly, but also the rear suspension bracket 1 disclosed in the present invention can realize the surrounding installation of the drive motor 3, and the shock-absorbing effect of the rear suspension cushion 2 can further ensure the reliability and stability of the assembly.

[0028] During the motor assembly process, the two vertical plates 122 of the rear suspension bracket 1 are first fixed to the frame longitudinal beams 4 on both sides, and then the rear suspension pad 2 and the drive motor 3 are assembled from top to bottom. During the process, the rear suspension bracket 1 plays an installation support role, which fully guarantees the reliability and safety of production assembly.

[0029] refer to Figure 1 As shown, in order to further ensure that the rear suspension bracket 1 has sufficient rigidity and strength, in the specific embodiment of the present disclosure, the side plate 12 and the support bottom plate 11 are both constructed as U-shaped plates with openings facing away from the drive motor 3. Optionally, the height of the flanges on both sides of the U-shaped plate can be between 30mm and 35mm to meet the lightweight design under the premise of meeting the processing technology. In addition, refer to Figure 1 As shown, the uppermost end of the U-shaped plate is chamfered, and rounded transitions are also used between the flanges on both sides of the U-shaped plate and the bottom wall to ensure assembly safety.

[0030] refer to Figure 1 and Figure 2 As shown, in order to ensure the structural strength of the rear suspension bracket 1 at the bend and avoid stress concentration, in the specific embodiment of the present disclosure, the side of the rear suspension bracket 1 away from the drive motor 3 is further provided with a reinforcing plate 5, referring to Figure 2 As shown, a reinforcing plate 5 can be correspondingly provided on each side plate 12, and both ends of the reinforcing plate 5 extend to the vertical plate 122 and the supporting bottom plate 11 respectively, so as to respectively have a vertical plate section 51, an inclined plate section 52 and a bottom plate section 53, and the reinforcing plate 5 is respectively fitted with the side plate 12 and the supporting bottom plate 11.

[0031] refer to Figure 1As shown, the reinforcing plate 5 fits the bottom wall of the U-shaped plate and can be welded to the side plate 12 and the supporting bottom plate 11, wherein the reinforcing plate 5 can be constructed of a steel plate with a thickness of 4mm-6mm. As an embodiment, the vertical plate segment 51 can extend below the installation position of the vertical plate 122 so as not to affect the installation of the vertical plate 122 and the frame longitudinal beam 4, while taking into account both lightweight and overall structural strength. Of course, in other embodiments, the length of the vertical plate segment 51 can be set according to actual conditions, as long as it can ensure that it exceeds the inflection point between the vertical plate 122 and the inclined plate 121.

[0032] Accordingly, refer to Figure 2 As shown, considering the lightweight design, the extension length of the bottom plate section 53 on the support bottom plate 11 does not exceed the connection position between the support bottom plate 11 and the rear suspension cushion 2. Therefore, in order to avoid affecting the installation of the support bottom plate 11 and the rear suspension cushion 2, in the specific embodiment of the present disclosure, the bottom plate section 53 is provided with an avoidance hole 531 to avoid the installation point of the support bottom plate 11. Similarly, in other embodiments, the length of the bottom plate section 53 can be set according to actual conditions, as long as it can ensure that it exceeds the inflection point between the inclined plate 121 and the support bottom plate 11.

[0033] refer to Figure 1 and Figure 2 As shown, in the specific embodiment of the present disclosure, a plurality of shock-absorbing holes 521 are evenly spaced along the extension direction of the inclined plate segment 52. The stress is released through the shock-absorbing holes 521, which can significantly reduce the vibration value; and the inclined plate 121 itself has no holes, which makes the shock-absorbing holes 521 equivalent to a blind hole structure, which can effectively prevent the shock-absorbing holes 521 from cracking. At the same time, the shock-absorbing holes 521 can further achieve the purpose of lightweighting.

[0034] Considering the installation convenience and stability of the side plate 12 and the frame longitudinal beam 4, in the specific embodiment of the present disclosure, reference is made to Figure 2 As shown, the side panel 12 is installed on the outside of the frame longitudinal beam 4. In this way, the side panel 12 constructed as a U-shaped panel will not occupy the installation space during installation. It is only necessary to connect the bottom wall of the U-shaped panel to the frame longitudinal beam 4 to achieve surface-to-surface installation and ensure the stability of the connection.

[0035] In the specific embodiments of the present disclosure, reference is made to Figure 1 and Figure 2 As shown, the vertical plate 122 is provided with a plurality of fixing holes 1221 spaced apart along its vertical direction, so that the first fastener 6 can be passed through the fixing holes 1221 to be mounted to the frame longitudinal beam 4. Optionally, the fixing holes 1221 are threaded holes, referring to Figure 1As shown, threaded holes distributed in a 3×2 array can be used for installation, and the first fastener 6 can be a fastening bolt, which can detachably install the vertical plate 122 on the frame longitudinal beam 4, which is convenient for later maintenance and replacement, and also ensures the stability of the assembly.

[0036] refer to Figure 1 and Figure 2 As shown, in a specific embodiment of the present disclosure, two rear suspension cushions 2 are arranged between the drive motor 3 and the support base plate 11, and two groups of mounting holes 111 are symmetrically arranged on the support base plate 11. The upper part of each rear suspension cushion 2 is connected to the transition connecting plate 31 of the drive motor 3, and the lower part is respectively installed in the two groups of mounting holes 111 through the second fastener 7 to connect with the support base plate 11. Figure 2 As shown, the mounting holes 111 can be constructed as threaded holes, and each group of mounting holes 111 can be set to two. The second fastener 7 is constructed as a fastening bolt, and the rear suspension cushion 2 and the support base plate 11 are fixed together by the fastening bolt, wherein the rear suspension cushion 2 and the transition connecting plate 31 can also be connected by a threaded connection to facilitate the disassembly and assembly of various components.

[0037] In addition, in the specific embodiment of the present disclosure, at least one weight-reducing drainage hole 112 is further provided on the support base plate 11, and the weight-reducing drainage hole 112 is arranged between the two groups of the mounting holes 111, wherein a corresponding number of weight-reducing drainage holes 112 can be opened according to actual needs, Figure 1 As shown, three weight-reducing drainage holes 112 may be evenly spaced to ensure the structural stability of the support base plate 11 while avoiding long-term accumulation of mud and dirt and taking into account lightweight design.

[0038] According to another aspect of the present disclosure, an electric vehicle is also provided, comprising the motor rear suspension bracket mounting structure disclosed above. The electric vehicle may be an electric heavy truck. When assembling the drive motor, the rear suspension bracket 1 is first pre-fixed on the frame longitudinal beam 4; then the assembled drive motor and rear suspension cushion are installed on the rear suspension bracket 1 through a lifting process, and each component is locked to complete the installation. The entire installation process is simple and can meet the reliability and safety of production assembly.

[0039] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0040] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0041] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A motor rear suspension bracket mounting structure, comprising a drive motor and a frame longitudinal beam, characterized in that: Also includes: A rear suspension bracket, comprising a support bottom plate and two side plates located on both sides of the support bottom plate, wherein the support bottom plate and the side plates are integrally formed, wherein the side plates comprise an inclined plate connected to an end of the support bottom plate and a vertical plate connected to the other end of the inclined plate, and the two inclined plates are respectively inclined in a direction away from the drive motor to form a receiving groove with the support bottom plate to install the drive motor; and a rear suspension cushion, which is installed between the driving motor and the supporting bottom plate, and the two vertical plates are respectively connected to the two frame longitudinal beams.

2. The motor rear suspension bracket mounting structure according to claim 1, characterized in that: The side plate and the support bottom plate are both configured as U-shaped plates with openings facing away from the drive motor.

3. The motor rear suspension bracket mounting structure according to claim 1 or 2, characterized in that: A reinforcing plate is also provided on a side of the rear suspension bracket facing away from the drive motor, and both ends of the reinforcing plate extend to the vertical plate and the supporting bottom plate respectively to have a vertical plate section, an inclined plate section and a bottom plate section respectively, and the reinforcing plate is respectively fitted with the side plate and the supporting bottom plate.

4. The motor rear suspension bracket mounting structure according to claim 3, characterized in that: The inclined plate section is provided with a plurality of shock-absorbing holes spaced evenly along its extending direction.

5. The motor rear suspension bracket mounting structure according to claim 3, characterized in that: The bottom plate section is provided with an avoidance hole.

6. The motor rear suspension bracket mounting structure according to claim 1 or 2, characterized in that: The side panels are mounted on the outer sides of the frame rails.

7. The motor rear suspension bracket mounting structure according to claim 6, characterized in that: The vertical plate is provided with a plurality of fixing holes spaced apart in a vertical direction thereof so as to be mounted to the frame longitudinal rail by passing a first fastener through the fixing holes.

8. The motor rear suspension bracket mounting structure according to claim 1, characterized in that: Two rear suspension pads are arranged between the drive motor and the support base plate, and two groups of mounting holes are symmetrically arranged on the support base plate. The top of each rear suspension pad is connected to the transition connecting plate of the drive motor, and the bottom is respectively installed in the two groups of mounting holes through second fasteners to connect to the support base plate.

9. The motor rear suspension bracket mounting structure according to claim 8, characterized in that: The support base plate is also provided with at least one weight-reducing sewage discharge hole, and the weight-reducing sewage discharge hole is arranged between the two groups of the mounting holes.

10. An electric vehicle, characterized in that: It comprises a motor rear suspension bracket mounting structure according to any one of claims 1-9.

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