Electric vehicle motor vibration reduction mount

Abstract

The utility model discloses an electric automobile motor damping frame, including the framework main part, the other side of connecting end is sequentially provided with first reinforcing block, second reinforcing block and third reinforcing block, is provided with the elastic pad in the installation groove, is provided with the fourth mounting hole on the connecting end, the fourth mounting hole is through the cable incoming wire placement groove setting, is provided with the fifth mounting hole that cooperates with the fourth mounting hole on the elastic pad, is provided with the pin shaft in the fourth mounting hole and the fifth mounting hole. Realize the built -in of cable in damping frame, provide the function that cable has order wiring and fixed, avoid the interference of cable and vibrating component, reduce attrition and failure, the elastic pad plays to reduce vibration simultaneously, relative sealing between motor fixed structure, avoid dust, moisture to enter inside cable connection position.

Description

Technical Field

[0001] This utility model relates to the field of motor vibration reduction, and in particular to a vibration damping frame for electric vehicle motors. Background Technology

[0002] The suspension system of an electric vehicle has functions such as isolating vibration, supporting and positioning the drive motor, protecting the drive motor, and overcoming the reaction force generated by the motor torque output. The core purpose of the motor vibration damping bracket is to isolate vibration, prevent vibration from being transmitted to the foundation structure, and avoid noise or damage.

[0003] In the prior art, the utility model patent with application number "CN202411862101.X" discloses a drive motor elastic bracket assembly and suspension system, which discloses a vibration damping structure for connecting the motor and the suspension chassis. In the prior art, cables are usually routed externally inside the frame, such as power cables, temperature sensors, encoders, or speed feedback devices. However, too many detection cables not only generate electromagnetic interference but are also prone to tangling. In order to reduce the external routing of cables and protect them, a new vibration damping frame structure is needed. Utility Model Content

[0004] The purpose of this invention is to provide a vibration damping frame for electric vehicle motors, which, by changing the structure of the vibration damping frame, has the advantages of hiding and protecting cables.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an electric vehicle motor vibration damping frame, comprising a frame body, a connecting arm, a first mounting hole, a second mounting hole, and a third mounting hole. The connecting arm is disposed on one side of the frame body, and a connecting end is disposed on the other side of the frame body. One side of the connecting end is configured as a supporting structural surface, and a first reinforcing block, a second reinforcing block, and a third reinforcing block are sequentially disposed on the other side of the connecting end. The first mounting hole, the second mounting hole, and the third mounting hole are sequentially disposed through the first reinforcing block, the second reinforcing block, and the third reinforcing block in the thickness direction of the connecting end. A structural reinforcing block is formed between the second reinforcing block and the supporting structural surface. The supporting structural surface is recessed inward to form a cable inlet groove, and the structural reinforcing block is recessed inward. A first cable outlet placement groove is formed by recessing the third reinforcing block and the second reinforcing block, and a second cable outlet placement groove is formed between the third reinforcing block and the second reinforcing block. A first inlet hole and a second inlet hole are provided in the cable inlet placement groove. The first inlet hole is connected to the cable inlet placement groove and the first cable outlet placement groove, respectively. The second inlet hole is connected to the cable inlet placement groove and the second cable outlet placement groove, respectively. An installation groove is formed by recessing the cable inlet placement groove. The installation groove is located between the first inlet hole and the second inlet hole. An elastic pad is provided in the installation groove. A fourth installation hole is provided through the connection end. The fourth installation hole is provided through the cable inlet placement groove. A fifth installation hole is provided on the elastic pad to cooperate with the fourth installation hole. A pin is provided in the fourth installation hole and the fifth installation hole.

[0006] Preferably, the structural reinforcing block is further provided with a first weight-reducing groove, and the structural reinforcing block is provided with a first die-casting gate between the first weight-reducing groove and the first cable outlet placement groove.

[0007] By adopting the above technical solution, the first weight-reducing groove reduces the weight of the structural reinforcing block, thereby reducing the weight of the overall vibration damping frame aluminum parts, and at the same time forming a gate for die casting.

[0008] Preferably, the cross-sectional shape of the first reinforcing block, the second reinforcing block and the third reinforcing block is annular, and the first reinforcing block and the third reinforcing block are located at both ends of the length direction of the connection end.

[0009] By adopting the above technical solution, the first reinforcing block, the second reinforcing block and the third reinforcing block are in the shape of a ring, and are respectively provided for the first mounting hole, the second mounting hole and the third mounting hole, so that the rubber sleeve can be embedded in the first mounting hole, the second mounting hole and the third mounting hole.

[0010] Preferably, the mounting groove is located between the first cable inlet hole and the second cable inlet hole, the fourth mounting hole is located inside the mounting groove, the cable inlet placement groove is rectangular, a reinforcing rib is formed between the first cable outlet placement groove and the second cable outlet placement groove, and the mounting groove is recessed into the reinforcing rib.

[0011] By adopting the above technical solution, the mounting groove reduces weight, while the mounting groove provides space for the elastic pad, increasing the contact area between the elastic pad and the mounting groove, thereby improving the connection effect between the elastic pad and the mounting groove. At the same time, the clearance space allows for the connection of the fourth mounting hole and the pin.

[0012] Preferably, the upper surfaces of the first and second inlet holes are provided with guide surfaces, and the bottom of the second cable outlet placement groove is provided with a first connecting strip. The first connecting strip is located between the second reinforcing block and the third reinforcing block. The first connecting strip is provided with a second die-casting gate and a third die-casting gate. The second and third die-casting gates are located at the corners of the second cable outlet placement groove and protrude from the inner surface of the second cable outlet placement groove.

[0013] By adopting the above technical solution, the guide surface is used for inserting cables and wire harnesses, reducing friction with the elastic pad. The first connecting strip serves as a setting for the second and third die-casting gates at the lowest point, used to form the motor vibration damping frame.

[0014] Preferably, the elastic pad includes a first positioning block, a second positioning block, and a third positioning block. The first positioning block circumferentially engages with a first inlet hole, the second positioning block circumferentially engages with a second inlet hole, and the third positioning block engages with a mounting groove. Through holes are respectively provided in the first and second positioning blocks.

[0015] By adopting the above technical solution, the connection effect between the elastic pad and the first inlet hole, the second inlet hole and the mounting groove is improved, and the through hole allows the wire harness and cable to be inserted into the elastic pad and enter the first cable outlet placement groove and the second cable outlet placement groove.

[0016] Preferably, the elastic pad has an arc-shaped strip above the fifth mounting hole, and the sidewall of the through hole has an arc-shaped surface.

[0017] By adopting the above technical solution, the arc-shaped surface allows the pin shaft to be inserted into the through hole, while the arc-shaped strip increases the structural strength of the elastic pad above the through hole.

[0018] Preferably, the longitudinal section of the connecting arm is triangular, and a second weight-reducing groove is provided at the center of the connecting arm. The second weight-reducing groove is triangular and is mirror-shaped inside the connecting arm.

[0019] By adopting the above technical solution, the second weight-reducing groove reduces the overall weight of the connecting arm while ensuring the structural strength of the connecting arm.

[0020] Preferably, the back of the connecting end is provided with a first arc-shaped mounting groove, a second arc-shaped mounting groove and a third arc-shaped mounting groove corresponding to the first reinforcing block, the second reinforcing block and the third reinforcing block, respectively, and the first arc-shaped mounting groove, the second arc-shaped mounting groove and the third arc-shaped mounting groove are arranged to extend outward in the horizontal direction.

[0021] By adopting the above technical solution, the first arc-shaped mounting groove, the second arc-shaped mounting groove, and the third arc-shaped mounting groove are used for connecting bolts and other connecting parts, thereby serving to connect the motor and the suspension.

[0022] In summary, by using the first, second, and third reinforcing blocks and structural reinforcing blocks, a reinforced structure is formed at key locations of the vibration damping frame, improving the overall rigidity and vibration resistance of the frame and ensuring the stability of the motor during operation. Some cables and detection harnesses are housed within the vibration damping frame through cable inlet slots, the first cable outlet slot, and the second cable outlet slot, providing orderly cable routing and fixation, avoiding interference between cables and vibrating components, reducing wear and malfunctions. At the same time, the elastic pads reduce vibration and provide a relative seal between the pads and the motor fixing structure, preventing dust and moisture from entering the internal cable connection points. Attached Figure Description

[0023] Figure 1 This is a structural diagram of an embodiment. Figure 1 ; Figure 2 This is a structural diagram of an embodiment. Figure 2 ; Figure 3 This is a structural schematic diagram of the embodiment at the location of the supporting structure surface; Figure 4 yes Figure 3 An enlarged schematic diagram of part A is shown below; Figure 5 This is a cross-sectional schematic diagram of an embodiment; In the diagram, 1. Main frame; 11. Connecting arm; 12. Second weight-reducing groove; 13. Connecting end; 21. First reinforcing block; 22. Second reinforcing block; 23. Third reinforcing block; 24. First mounting hole; 25. Second mounting hole; 26. Third mounting hole; 27. First arc-shaped mounting groove; 28. Second arc-shaped mounting groove; 29. ​​Third arc-shaped mounting groove; 3. Cable inlet slot; 31. First inlet hole; 32. Second inlet hole; 33. Guide surface; 34. Reinforcing rib. 35. Mounting slot; 4. Structural reinforcing block; 41. First cable outlet placement slot; 42. Second cable outlet placement slot; 43. First weight reduction slot; 44. First die-casting gate; 5. Elastic pad; 51. Fourth mounting hole; 52. Fifth mounting hole; 53. Pin; 54. First positioning block; 55. Second positioning block; 56. Third positioning block; 57. Through hole; 58. Arc-shaped strip; 61. First connecting strip; 62. Second die-casting gate; 63. Third die-casting gate. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings.

[0025] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0026] Example:

[0027] like Figures 1 to 5 As shown, an electric vehicle motor vibration damping frame includes a frame body 1, which is formed by die casting of aluminum alloy. A connecting arm 11 is provided on one side of the frame body 1. The connecting arm 11 is used to insert into the elastic element of the suspension to realize the connection between the frame body 1 and the suspension bracket. The other side of the frame body 1 is used for the connection between the frame body 1 and the motor.

[0028] like Figures 1 to 4As shown, the other side of the main frame 1 is provided with a connecting end 13 for connecting to the motor. In order to fix the soft rubber pad, the other side of the connecting end 13 is provided with a first reinforcing block 21, a second reinforcing block 22 and a third reinforcing block 23 in sequence. The first mounting hole 24, the second mounting hole 25 and the third mounting hole 26 are provided in sequence through the first reinforcing block 21, the second reinforcing block 22 and the third reinforcing block 23 in the thickness direction of the connecting end 13. That is, the first mounting hole 24 corresponds to the first reinforcing block 21, the second mounting hole 25 corresponds to the second reinforcing block 22 and the third mounting hole 26 corresponds to the third reinforcing block 23. The mounting holes are used to install the rubber pad. At the same time, the back of the connecting end 13 is provided with a first arc-shaped mounting groove 27, a second arc-shaped mounting groove 28 and a third arc-shaped mounting groove 29 corresponding to the first reinforcing block 21, the second reinforcing block 22 and the third reinforcing block 23 respectively. The first arc-shaped mounting groove 27, the second arc-shaped mounting groove 28 and the third arc-shaped mounting groove 29 are provided outward in the horizontal direction.

[0029] like Figure 2 and Figure 3 As shown, a structural reinforcing block 4 is formed between the second reinforcing block 22 and the supporting structure surface. The supporting structure surface is recessed inward to form a cable inlet placement groove 3, which is also the location of the elastic pad 5. The structural reinforcing block 4 is recessed inward to form a first cable outlet placement groove 41. A second cable outlet placement groove 42 is formed between the third reinforcing block 23 and the second reinforcing block 22. A first inlet hole 31 and a second inlet hole 32 are provided in the cable inlet placement groove 3. The first inlet hole 31 is connected to the cable inlet placement groove 3 and the first cable outlet placement groove 41 in the height direction, respectively. The second inlet hole 32 is connected to the cable inlet placement groove 3 and the second cable outlet placement groove 42, respectively.

[0030] In order to fix the elastic pad 5, such as Figures 3 to 5 As shown, one side of the connecting end 13 is set as a support structure surface. The cable inlet placement groove 3 is recessed to form an installation groove 35. The cable inlet placement groove 3 and the installation groove 35 are T-shaped as a whole. The installation groove 35 is located between the first inlet hole 31 and the second inlet hole 32. The elastic pad 5 is set in the installation groove 35. In order to fix the elastic pad 5 in the thickness direction, a fourth installation hole 51 is provided through the connecting end 13. The fourth installation hole 51 is set through the cable inlet placement groove 3. The elastic pad 5 is provided with a fifth installation hole 52 that cooperates with the fourth installation hole 51. A pin 53 is provided in the fourth installation hole 51 and the fifth installation hole 52 to prevent the elastic pad 5 from loosening. At the same time, an arc-shaped strip 58 is provided above the fifth installation hole 52 of the elastic pad 5. The side wall of the through hole 57 is provided with an arc-shaped surface.

[0031] like Figure 3As shown, the longitudinal section of the connecting arm 11 is triangular. In order to reduce the overall weight of the vibration damper, a second weight reduction groove 12 is provided in the center of the connecting arm 11. The second weight reduction groove 12 is triangular and is mirrored inside the connecting arm 11.

[0032] like Figures 1 to 3 As shown, in order to reduce the overall weight of the aluminum alloy vibration damping frame and design the gate: the cross-sectional shape of the first reinforcing block 21, the second reinforcing block 22, and the third reinforcing block 23 is annular and protrudes outward. The first reinforcing block 21 and the third reinforcing block 23 are located at the two ends of the length direction of the connecting end 13, respectively. A first weight-reducing groove 43 is also provided in the structural reinforcing block 4. A first die-casting gate 44 is provided between the first weight-reducing groove 43 and the first cable outlet placement groove 41. The mounting groove 35 is located between the first inlet hole 31 and the second inlet hole 32 and is rectangular, used to fix it with the elastic pad 5. The fourth mounting hole 51 is located in the mounting groove 35. The cable outlet placement groove 3 The device is rectangular in shape. A reinforcing rib 34 is formed between the first cable outlet placement groove 41 and the second cable outlet placement groove 42. The mounting groove 35 is recessed into the reinforcing rib 34. A first connecting strip 61 is provided at the bottom of the second cable outlet placement groove 42. A second connecting strip is provided at the bottom of the first reinforcing block 21 and the second reinforcing block 22. The first connecting strip 61 is located between the second reinforcing block 22 and the third reinforcing block 23. A second die-casting gate 62 and a third die-casting gate 63 are provided on the first connecting strip 61. The second die-casting gate 62 and the third die-casting gate 63 are located at the corner of the second cable outlet placement groove 42 and protrude from the inner surface of the second cable outlet placement groove 42.

[0033] like Figure 5 As shown, the elastic pad 5 includes a first positioning block 54, a second positioning block 55, and a third positioning block 56. The first positioning block 54 circumferentially engages with the first inlet hole 31, the second positioning block 55 circumferentially engages with the second inlet hole 32, and the third positioning block 56 engages with the mounting groove 35. Through holes 57 are respectively provided in the first positioning block 54 and the second positioning block 55. The upper surfaces of the first inlet hole 31 and the second inlet hole 32 are provided with guide surfaces 33 to facilitate the embedding of the elastic pad 5.

[0034] Working principle: During use, firstly, part of the detection wire harness is passed through the through holes 57 on the first positioning block 54 and the second positioning block 55. Then, the third positioning block 56 in the middle of the elastic pad 5 is embedded into the mounting groove 35, the first positioning block 54 is embedded into the first inlet hole 31, the second positioning block 55 is embedded into the second inlet hole 32, and at the same time, the cable passes through the first cable outlet placement groove 41 to exit the motor vibration damping frame, and part of the cable passes through the second cable outlet placement groove 42 to exit the motor vibration damping frame and connect to the motor.

Claims

1. A vibration damping frame for an electric vehicle motor, comprising a frame body (1), a connecting arm (11), a first mounting hole (24), a second mounting hole (25), and a third mounting hole (26), characterized in that: The connecting arm (11) is located on one side of the frame body (1), and the other side of the frame body (1) is provided with a connecting end (13). One side of the connecting end (13) is provided as a supporting structural surface. The other side of the connecting end (13) is provided with a first reinforcing block (21), a second reinforcing block (22), and a third reinforcing block (23) in sequence. The first mounting hole (24), the second mounting hole (25), and the third mounting hole (26) are provided in sequence through the first reinforcing block (21), the second reinforcing block (22), and the third reinforcing block (23) in the thickness direction of the connecting end (13). A structural reinforcing block (4) is formed between the second reinforcing block (22) and the supporting structural surface. The supporting structural surface is recessed inward to form a cable inlet placement groove (3). The structural reinforcing block (4) is recessed inward to form a first cable outlet placement groove (41). A second cable outlet placement groove (41) is formed between the third reinforcing block (23) and the second reinforcing block (22). 2) The cable inlet placement groove (3) is provided with a first inlet hole (31) and a second inlet hole (32). The first inlet hole (31) is connected to the cable inlet placement groove (3) and the first cable outlet placement groove (41) respectively. The second inlet hole (32) is connected to the cable inlet placement groove (3) and the second cable outlet placement groove (42) respectively. The cable inlet placement groove (3) is recessed to form an installation groove (35). The installation groove (35) is located between the first inlet hole (31) and the second inlet hole (32). An elastic pad (5) is provided in the installation groove (35). A fourth installation hole (51) is provided through the connection end (13). The fourth installation hole (51) is provided through the cable inlet placement groove (3). A fifth installation hole (52) is provided on the elastic pad (5) to cooperate with the fourth installation hole (51). A pin (53) is provided in the fourth installation hole (51) and the fifth installation hole (52).

2. The electric vehicle motor vibration damping frame according to claim 1, characterized in that: The structural reinforcing block (4) is also provided with a first weight reduction groove (43), and the structural reinforcing block (4) is provided with a first die casting gate (44) between the first weight reduction groove (43) and the first cable outlet placement groove (41).

3. The electric vehicle motor vibration damping frame according to claim 2, characterized in that: The cross-sectional shape of the first reinforcing block (21), the second reinforcing block (22) and the third reinforcing block (23) is annular, and the first reinforcing block (21) and the third reinforcing block (23) are located at the two ends of the length direction of the connecting end (13).

4. The electric vehicle motor vibration damping frame according to claim 3, characterized in that: The mounting groove (35) is located between the first inlet hole (31) and the second inlet hole (32), the fourth mounting hole (51) is located inside the mounting groove (35), the cable inlet placement groove (3) is rectangular, a reinforcing rib (34) is formed between the first cable outlet placement groove (41) and the second cable outlet placement groove (42), and the mounting groove (35) is recessed into the reinforcing rib (34).

5. The electric vehicle motor vibration damping frame according to claim 4, characterized in that: The upper surfaces of the first inlet hole (31) and the second inlet hole (32) are provided with guide surfaces (33), and the bottom of the second cable outlet placement groove (42) is provided with a first connecting strip (61). The first connecting strip (61) is located between the second reinforcing block (22) and the third reinforcing block (23). The first connecting strip (61) is provided with a second die-casting gate (62) and a third die-casting gate (63). The second die-casting gate (62) and the third die-casting gate (63) are located at the corner of the second cable outlet placement groove (42) and protrude from the inner surface of the second cable outlet placement groove (42).

6. The electric vehicle motor vibration damping frame according to claim 5, characterized in that: The elastic pad (5) includes a first positioning block (54), a second positioning block (55) and a third positioning block (56). The first positioning block (54) is circumferentially engaged with the first inlet hole (31), the second positioning block (55) is circumferentially engaged with the second inlet hole (32), and the third positioning block (56) is engaged with the mounting groove (35). The first positioning block (54) and the second positioning block (55) are respectively provided with through holes (57).

7. The electric vehicle motor vibration damping frame according to claim 6, characterized in that: The elastic pad (5) has an arc-shaped strip (58) above the fifth mounting hole (52), and the sidewall of the through hole (57) has an arc-shaped surface.

8. The electric vehicle motor vibration damping frame according to claim 6, characterized in that: The longitudinal section of the connecting arm (11) is triangular, and a second weight-reducing groove (12) is provided at the center of the connecting arm (11). The second weight-reducing groove (12) is triangular and is mirrored inside the connecting arm (11).

9. The electric vehicle motor vibration damping frame according to claim 8, characterized in that: The back of the connecting end (13) is provided with a first arc-shaped mounting groove (27), a second arc-shaped mounting groove (28), and a third arc-shaped mounting groove (29) corresponding to the first reinforcing block (21), the second reinforcing block (22), and the third reinforcing block (23), respectively. The first arc-shaped mounting groove (27), the second arc-shaped mounting groove (28), and the third arc-shaped mounting groove (29) are arranged to extend outward in the horizontal direction.

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