Driving motor shell with split type connecting support

Abstract

The utility model discloses a driving motor shell with a split type connecting support, and solves the problems that when an existing driving motor shell is assembled, due to the fact that an integrated connecting structure needs to be adopted for connecting a whole vehicle frame, additional stress is prone to being generated, and when an assembled new energy vehicle is under complex road conditions, the risk that a suspension is broken is increased, and the service life of the new energy vehicle is prolonged. The problems of high installation requirement and limited flexibility exist; through the left side connecting support, the right side connecting support, the transmission right side connecting support and the transmission left side connecting support, the transmission, the whole frame and the driving motor shell body are assembled together, the problem that an integrated support is not installed in place due to the location degree is solved, and the split type structure is more convenient to install and more reliable in installation. No additional stress is generated in the support under complex road conditions, and the reliability is higher.

Description

Technical Field

[0001] This utility model relates to a motor housing, specifically a drive motor housing with a split-type connecting bracket. Background Technology

[0002] New energy vehicles use batteries to power the motor, which is then paired with a transmission to transmit power to the chassis. Traditional transmissions are assembled with the engine at the OEM and then fixed to the vehicle frame using connecting brackets. Most existing vehicle frames use the engine as the primary suspension point, with the transmission serving as an auxiliary suspension mounting hole, and the entire vehicle is fixed using an integrated crossbeam bracket. This method is prone to stress under dynamic loads, has strict requirements on bracket positional and dimensional tolerances, and limits adaptability and flexibility. In actual use, new energy vehicles often encounter complex road conditions, increasing the risk of suspension breakage.

[0003] In the new energy vehicle sector, OEMs offer a wide variety of supplier products. The transmission and motor designs are often compact, lacking auxiliary suspension points. To address this, powertrains with the motor and transmission bundled together are frequently supplied as a single unit. There are even integrated two-in-one powertrain products like the FS4E200-2, whose housing suspension holes are vertical. OEMs need to pre-determine suspension hole positions based on the 3D models of the motor and transmission, and then design a connection structure to convert the vertical orientation to a horizontal installation. The suspension brackets are then designed according to the actual vehicle frame space. The design verification process is complex, and the manufacturing process is also relatively complicated.

[0004] Chinese patent CN114194012A discloses a suspension structure for a drive motor in a new energy vehicle, including a left frame longitudinal beam, a right frame longitudinal beam, and a drive motor and a gearbox located between the left and right frame longitudinal beams. The bottom of the drive motor is connected to a U-shaped bracket via a front suspension pad, and the two ends of the U-shaped bracket are fixedly connected to the left and right frame longitudinal beams, respectively. One side of the gearbox is connected to the left frame longitudinal beam via a first suspension pad and a left rear suspension bracket, and the other side of the gearbox is connected to the right frame longitudinal beam via a second suspension pad and a right rear suspension bracket. A circular tube beam is provided at the rear of the gearbox, and the two ends of the circular tube beam are fixedly connected to the left and right rear suspension brackets, respectively. In this patent, the left and right frame longitudinal beams are connected by a U-shaped bracket, which is equivalent to an integrated connection structure. When the drive motor is subjected to vibration, additional stress will be generated between the suspension structure formed by the left and right frame longitudinal beams and the U-shaped bracket.

[0005] Chinese patent CN102745052A discloses a powertrain mounting device, including a well-shaped bracket. The well-shaped bracket includes a front crossbeam and a rear crossbeam arranged side-by-side, and a left longitudinal beam and a right longitudinal beam arranged side-by-side and intersecting the front and rear crossbeams. It also includes a first mounting bracket suspended below the well-shaped bracket for connecting to the outer end face of the transmission and a second mounting bracket for connecting to the outer end face of the drive motor. Furthermore, it includes a front suspension bracket suspended on the front crossbeam for connecting to the side end face of the drive motor and a rear suspension bracket suspended on the rear crossbeam for connecting to the side end face of the transmission. This mounting device's structural design effectively solves problems such as large distances between components in the powertrain, a large number of wires, and a long transmission distance and low transmission efficiency between the drive motor and the transmission shaft. However, this patent uses an integrated structure, which has drawbacks such as complex design and manufacturing, difficult maintenance and replacement, limited adaptability and flexibility, potential safety risks, and limited cross-domain application. Utility Model Content

[0006] The purpose of this utility model is to solve the problem that existing drive motor housings, due to the need to use an integrated connection structure to connect to the vehicle frame during assembly, are prone to generating additional stress, which increases the risk of suspension breakage in new energy vehicles under complex road conditions after assembly. In addition, they have problems such as high installation requirements and limited flexibility. Therefore, this utility model provides a drive motor housing with a split connection bracket.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A drive motor housing with split-type connecting brackets includes a motor housing body, which is special in that it also includes a left connecting bracket, a right connecting bracket, a right connecting bracket of the transmission, and a left connecting bracket of the transmission; that is, it is in the form of four split-type structures.

[0009] One end of the outer wall of the motor housing body is connected to an upwardly extending left connecting bracket and a right connecting bracket. The top of the left connecting bracket and the top of the right connecting bracket are respectively connected to a frame fixing plate. The left connecting bracket and the right connecting bracket are arranged in a mirror symmetrical manner. In use, the frame fixing plate is fixedly connected to the overall frame.

[0010] The outer wall of the other end of the motor housing is connected to the right-side connecting bracket and the left-side connecting bracket of the transmission. A transmission connecting plate is connected to the outer side of the right-side connecting bracket and the left-side connecting bracket of the transmission. The right-side connecting bracket and the left-side connecting bracket of the transmission are arranged in a mirror symmetrical manner. In use, the transmission connecting plate is connected to the transmission.

[0011] By using the aforementioned left-side connecting bracket, right-side connecting bracket, right-side connecting bracket of the transmission, and left-side connecting bracket of the transmission, the transmission, the overall frame, and the drive motor housing are assembled together. This overcomes the problem of additional stress that is easily generated when using an integrated connecting structure, and also has the advantages of easy installation and high flexibility.

[0012] The left-side connecting bracket, right-side connecting bracket, right-side connecting bracket of the gearbox, and left-side connecting bracket of the gearbox are not directly connected to each other; instead, they are independently connected to the drive motor housing. In complex road conditions, no additional stress is generated between the four brackets, ensuring high reliability. Furthermore, the four brackets are arranged in a mirror-symmetrical configuration in pairs, preventing incorrect installation. They are bolted to the frame mounting plate and gearbox connecting plate, facilitating disassembly and installation, enhancing structural stability and load-bearing capacity, optimizing weight distribution, reducing manufacturing costs, and improving maintenance convenience.

[0013] Furthermore, the left and right connecting brackets have the same structure, both being L-shaped structures formed by connecting long and short arms. The end of the long arm away from the short arm is connected to the motor housing body by bolts, and the outer end of the short arm is connected to the frame fixing plate by bolts. The frame fixing plate connects to the overall frame. The left and right connecting brackets located on both sides of the drive motor housing body can enhance the stability of the connection.

[0014] Furthermore, multiple parallel first reinforcing ribs are welded at the connection between the long arm and the short arm to strengthen the connection between them.

[0015] Furthermore, multiple second reinforcing ribs are welded onto the long arm.

[0016] Furthermore, the frame mounting plate includes a vertical frame connecting plate. A lug plate is vertically connected to the back edge of the frame connecting plate, and the lug plate is located directly below the short arm. The short arm can limit the movement of the frame connecting plate. Multiple connecting holes are provided on the lug plate, each corresponding to a bracket connecting hole on the outer end of the short arm. A vibration damping pad is also provided between the short arm and the lug plate, with one side of the vibration damping pad fitting against the back of the frame connecting plate. The short arms of the left and right connecting brackets are connected to the vibration damping pad and the lug plate respectively by fixing bolts passing through the bracket connecting holes. When the new energy vehicle is on bumpy roads, the vibration damping pad buffers the vertical stress impact on the frame connecting plate, preventing the frame connecting plate from being squeezed and deformed. This ensures that the drive motor and transmission receive dynamic loads during operation, which can be converted into elastic potential energy, thus ensuring operational stability.

[0017] Furthermore, both the right-side connecting bracket and the left-side connecting bracket of the transmission are L-shaped connecting plates. One end of the L-shaped connecting plate is connected to the outer wall of the other end of the motor housing body, and the other end of the L-shaped connecting plate is connected to the transmission connecting plate.

[0018] Furthermore, multiple rows of bolt holes are provided on the transmission connecting plate;

[0019] The right-side connecting bracket and the left-side connecting bracket of the transmission are respectively connected to the corresponding transmission connecting plate by bolts passing through one row of bolt holes.

[0020] Furthermore, circular grooves are provided on the left connecting bracket, the right connecting bracket, the right connecting bracket of the transmission, and the left connecting bracket of the transmission. The size of the circular grooves is determined according to the strength of the brackets, which can reduce excess material while ensuring the strength of the brackets, resulting in better economic efficiency.

[0021] Furthermore, the long arm is connected to one end of the motor housing body near the upper side and is tangentially arranged along the outer periphery of the motor housing body.

[0022] The beneficial effects of this utility model are:

[0023] 1. This utility model provides a drive motor housing with a split connecting bracket. The motor housing body is connected to the vehicle frame using a split connecting bracket, which avoids the installation problems caused by the position of the integrated bracket. The split structure is more convenient to install, and the bracket is less likely to generate additional stress when facing complex road conditions, thus improving reliability.

[0024] 2. This utility model provides a drive motor housing with a split connecting bracket, wherein the left connecting bracket and the left connecting bracket of the gearbox are mirror-symmetrically arranged with the right connecting bracket and the right connecting bracket of the gearbox; this serves to prevent incorrect installation and improves the stability of the drive motor housing body during installation.

[0025] 3. The present invention provides a drive motor housing with a split connecting bracket, which is equipped with anti-vibration soft pads to prevent the frame fixing plate from being squeezed and deformed, and to ensure that the dynamic load of the drive motor and transmission during operation is converted into elastic potential energy.

[0026] 4. The present invention provides a drive motor housing with a split connecting bracket, wherein the left connecting bracket and the right connecting bracket are provided with a first reinforcing rib and a second reinforcing rib, which can improve the support strength of the left connecting bracket and the right connecting bracket. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of a drive motor housing with a split-type connecting bracket according to the present invention;

[0028] Figure 2 This is a top view of the right connecting bracket connected to the frame fixing plate in an embodiment of the drive motor housing with a split connecting bracket of this utility model.

[0029] Figure 3 This is a three-dimensional schematic diagram of the connection between the left connecting bracket and the frame fixing plate in an embodiment of a drive motor housing with a split connecting bracket according to this utility model.

[0030] In the diagram, 1-left connecting bracket, 2-right connecting bracket, 3-right connecting bracket of the gearbox, 4-left connecting bracket of the gearbox, 5-motor housing body, 6-gearbox connecting plate, 7-circular groove, 8-first reinforcing rib, 9-fixing bolt, 10-anti-vibration pad, 11-frame fixing plate, 12-bracket connecting hole, 13-second reinforcing rib. Detailed Implementation

[0031] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] This embodiment describes a drive motor housing with a split-type connecting bracket, such as... Figure 1 As shown, the device includes a motor housing body 5, a left connecting bracket 1, a right connecting bracket 2, a right connecting bracket 3 for the gearbox, and a left connecting bracket 4 for the gearbox. The left connecting bracket 1 and the right connecting bracket 2 have the same structure and their bottom ends are connected to the outer wall of one end of the motor housing body 5. The right connecting bracket 3 and the right connecting bracket 4 for the gearbox have the same structure and are connected to the outer wall of the other end of the motor housing body 5.

[0033] In use, the transmission, drive motor, and vehicle frame are connected together via the aforementioned left connecting bracket 1, right connecting bracket 2, right transmission connecting bracket 3, and right transmission connecting bracket 4. The four brackets are independently designed, which optimizes load impact during actual application, reduces additional stress caused by the integrated connection structure, and increases service life. Furthermore, the drive motor housing with separate connecting brackets offers greater installation convenience, allowing for a horizontal connection with the vehicle frame. This effectively overcomes the problem of additional stress easily generated by integrated connection structures. Assembly, disassembly, and maintenance can be performed on each of the four brackets separately, improving the ease of installation and maintenance.

[0034] The left connecting bracket 1 and the right connecting bracket 2 are arranged in a mirror symmetrical manner; the right connecting bracket 3 of the gearbox and the left connecting bracket 4 of the gearbox are arranged in a mirror symmetrical manner; this makes the connection of the drive motor housing body 5 more stable and also prevents incorrect installation.

[0035] The left connecting bracket 1 and the right connecting bracket 2 have the same structure, both being L-shaped structures formed by the connection of a long arm and a short arm. The long arm is connected to one end of the motor housing body 5 near the upper side and is tangentially set along the outer periphery of the motor housing body 5. Its end away from the short arm is bolted to the motor housing body 5. The outer end of the short arm is bolted to the vertical frame fixing plate 11. Multiple parallel first reinforcing ribs 8 are welded at the connection between the long arm and the short arm to strengthen the connection. Multiple second reinforcing ribs 13 are welded to the long arm, such as... Figure 2 and Figure 3 As shown, both the first reinforcing rib 8 and the second reinforcing rib 13 can increase the support strength of the left connecting bracket 1 and the right connecting bracket 2.

[0036] like Figure 2 As shown, the top ends of the left connecting bracket 1 and the right connecting bracket 2 are respectively bolted to the frame fixing plate 11; these are used to fix the connection to the side plate of the vehicle frame. The frame fixing plate 11 includes a frame connecting plate, and a lug plate is vertically connected to the bottom edge of the back of the frame connecting plate, with the lug plate located directly below the short arm. Multiple connecting holes are provided on the lug plate, corresponding one-to-one with the bracket connecting holes 12 on the outer end of the short arm. An anti-vibration pad 10 is also provided between the short arm and the lug plate, with one side of the anti-vibration pad 10 fitting against the back of the frame connecting plate. The upper parts of the left connecting bracket 1 and the right connecting bracket 2 are respectively connected to the anti-vibration pad 10 and the lug plate via fixing bolts 9 passing through the bracket connecting holes 12. The anti-vibration pad 10 can reduce the stress impact on the vertical frame fixing plate 11, ensuring stability during operation on bumpy roads.

[0037] The thickness of the frame connecting plate is determined according to the spacing of the OEM, which has the advantages of high flexibility and good versatility.

[0038] The transmission connecting plate 6 has multiple rows of bolt holes; the top of the right-side connecting bracket 3 and the top of the left-side connecting bracket 4 are respectively bolted into one row of bolt holes in the transmission connecting plate 6. The connection position of the transmission connecting plate 6 can be adjusted.

[0039] The left connecting bracket 1, the right connecting bracket 2, the right connecting bracket 3 of the transmission, and the left connecting bracket 4 of the transmission all have circular grooves 7, which can optimize the weight distribution and reduce manufacturing costs.

[0040] The above description is merely a specific embodiment of this utility model and a comparison of the effects of the specific embodiments with relevant comparative examples. However, the protection scope of this utility model is not limited thereto. Any changes or substitutions within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A drive motor housing with a split-type connecting bracket, comprising a motor housing body (5), characterized in that: It also includes a left connecting bracket (1), a right connecting bracket (2), a right connecting bracket for the transmission (3), and a left connecting bracket for the transmission (4); One end of the outer wall of the motor housing body (5) is connected to an upwardly extending left connecting bracket (1) and right connecting bracket (2). The upper part of the left connecting bracket (1) and the upper part of the right connecting bracket (2) are respectively connected to a vertical frame fixing plate (11). The left connecting bracket (1) and the right connecting bracket (2) are arranged in a mirror symmetrical manner. The outer wall of the other end of the motor housing body (5) is connected to the right side connecting bracket (3) and the left side connecting bracket (4) of the transmission. A transmission connecting plate (6) is connected to the outer side of the right side connecting bracket (3) and the left side connecting bracket (4) of the transmission respectively. The right side connecting bracket (3) and the left side connecting bracket (4) of the transmission are arranged in a mirror symmetrical manner.

2. The drive motor housing with a split-type connecting bracket according to claim 1, characterized in that: The left connecting bracket (1) and the right connecting bracket (2) have the same structure. They are both L-shaped structures formed by connecting long arms and short arms. The end of the long arm away from the short arm is connected to the motor housing body (5) by bolts, and the outer end of the short arm is connected to the vertical frame fixing plate (11) by bolts.

3. The drive motor housing with a split-type connecting bracket according to claim 2, characterized in that: Multiple parallel first reinforcing ribs (8) are welded at the connection between the long arm and the short arm to strengthen the connection between the long arm and the short arm.

4. The drive motor housing with a split-type connecting bracket according to claim 2, characterized in that: Multiple second reinforcing ribs (13) are welded onto the long arm.

5. A drive motor housing with a split-type connecting bracket according to claim 2, characterized in that: The frame mounting plate (11) includes a vertical frame connecting plate. A lug is vertically connected to the bottom edge of the back of the frame connecting plate, and the lug is located directly below the short arm. Multiple connecting holes are opened on the lug, and the multiple connecting holes correspond one-to-one with the bracket connecting holes (12) opened on the outer end of the short arm. A vibration damping pad (10) is also provided between the short arm and the lug. One side of the vibration damping pad (10) is attached to the back of the frame connecting plate. The short arm of the left connecting bracket (1) and the short arm of the right connecting bracket (2) are respectively connected to the vibration damping pad (10) and the lug by fixing bolts (9) passing through the bracket connecting holes (12).

6. The drive motor housing with a split-type connecting bracket according to claim 1, characterized in that: The right-side connecting bracket (3) and the left-side connecting bracket (4) of the transmission are both L-shaped connecting plates. One end of the L-shaped connecting plate is connected to the outer wall of the other end of the motor housing body (5), and the other end of the L-shaped connecting plate is connected to the transmission connecting plate (6).

7. The drive motor housing with a split-type connecting bracket according to claim 1, characterized in that, Multiple rows of bolt holes are provided on the transmission connecting plate (6); The right-side connecting bracket (3) and the left-side connecting bracket (4) of the transmission are respectively connected to the corresponding transmission connecting plate (6) by bolts passing through one row of bolt holes.

8. The drive motor housing with a split-type connecting bracket according to claim 1, characterized in that, The left connecting bracket (1), right connecting bracket (2), right connecting bracket of the transmission (3), and left connecting bracket of the transmission (4) are all provided with circular grooves (7) to reduce weight.

9. A drive motor housing with a split-type connecting bracket according to claim 2, characterized in that, The long arm is connected to one end of the motor housing body (5) near the upper side and is arranged tangentially along the outer periphery of the motor housing body (5).

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