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CN-224197575-U - Motor suspension structure

CN224197575UCN 224197575 UCN224197575 UCN 224197575UCN-224197575-U

Abstract

The utility model relates to the technical field of motor suspension, in particular to a motor suspension structure, which comprises a suspension framework (1), wherein a support connection structure is arranged on the suspension framework (1), a buffer structure is arranged in the support connection structure and is connected with a wire harness support, the suspension framework (1) is respectively connected with an auxiliary frame and a motor, the support connection structure can provide an installation position for the wire harness support and can realize stable connection of the wire harness support and the suspension framework, the buffer structure can provide effective buffer for the wire harness support, compared with the existing motor suspension performance, vibration transmitted by a high-voltage wire harness or a water pipe is subjected to primary attenuation through a press-fit rubber bushing and then transmitted to a motor suspension main spring for secondary attenuation, and the suspension NVH performance of the whole vehicle is better.

Inventors

  • Chai kangjie
  • LIU HUIJIAN
  • QI LINXING
  • WANG RENKUN

Assignees

  • 奇瑞汽车股份有限公司

Dates

Publication Date
20260505
Application Date
20250609

Claims (10)

  1. 1. A motor suspension structure is characterized by comprising a suspension framework (1), wherein a support connecting structure is arranged on the suspension framework (1), a buffer structure is arranged in the support connecting structure and is connected with a wire harness support, and the suspension framework (1) is respectively connected with an auxiliary frame and a motor.
  2. 2. The motor suspension structure according to claim 1, wherein the bracket connection structure comprises a connection sleeve (2), the connection sleeve (2) is arranged at the top of the suspension framework (1), the buffer structure is arranged in the connection sleeve (2), the wire harness bracket is provided with a connecting rod, and the connecting rod extends into the connection sleeve (2) and is connected with the suspension framework (1).
  3. 3. A motor suspension according to claim 2, characterized in that the buffer structure comprises a bushing (3), the bushing (3) being arranged in the connecting sleeve (2), the connecting rod being sleeved in the bushing (3).
  4. 4. A motor suspension according to claim 3, characterized in that the bushing (3) comprises an inner tube (301) and an outer tube (302), a rubber layer (303) is arranged between the inner tube (301) and the outer tube (302), the inner tube (301) is sleeved on the connecting rod, and the outer tube (302) is abutted against the inner wall of the connecting sleeve (2).
  5. 5. A motor suspension structure according to claim 4, wherein the suspension skeleton (1) is provided with a threaded hole (101), the threaded hole (101) is formed in the top of the suspension skeleton (1) and is communicated with the inner tube (301), the end portion of the connecting rod is provided with external threads, and the threaded hole (101) is internally provided with internal threads matched with the external threads.
  6. 6. A motor suspension structure according to any one of claims 4 to 5, characterized in that a mounting hole (102) is formed in the suspension frame (1), a suspension main spring (4) is arranged in the mounting hole (102), and the suspension main spring (4) is connected with the auxiliary frame.
  7. 7. A motor suspension structure according to claim 6, wherein the suspension main spring (4) is provided with a first bolt hole (401), a first bolt is arranged in the first bolt hole (401), and the first bolt is connected with the auxiliary frame.
  8. 8. A motor suspension structure according to claim 7, wherein a second bolt hole (103) is formed in the suspension frame (1), and a second bolt is arranged in the second bolt hole (103) and is connected with the motor.
  9. 9. A motor suspension structure according to claim 8, wherein said suspension frame (1) includes a larger end portion (5) and a smaller end portion (501), said larger end portion (5) is provided with said mounting hole (102) and said connecting sleeve (2), respectively, and said plurality of second bolt holes (103) are provided on said smaller end portion (501).
  10. 10. A motor suspension according to any one of claims 7 to 9, characterized in that the rubber layer (303) is vulcanized rubber.

Description

Motor suspension structure Technical Field The utility model relates to the technical field of motor suspension, in particular to a motor suspension structure. Background In recent years, the electric automobile is supported with great force in China, the market share is improved year by year, meanwhile, the performance requirements of consumers on the electric automobile are improved increasingly, particularly in the aspect of riding comfort, compared with a traditional engine, a plurality of high-voltage wire harnesses or pipelines are usually arranged on a motor, the high-voltage wire harnesses or pipelines are required to be hung on a bracket of the motor to provide mounting points due to arrangement space limitation, the high-voltage wire harnesses or pipelines are heavier than the traditional fuel automobile, the influence of the mounting points of the bracket on the hanging performance is obvious due to the fact that the high-voltage wire harnesses or pipelines are heavier than the traditional fuel automobile, meanwhile, the traditional bracket and the motor hanging are directly connected in a hard mode, NVH performance (Noise, vibration (Vi brati on) and sound vibration roughness (HARSHNESS)) is difficult to be qualified, and the user experience is poor. The applicant has found through search that China patent document with the publication number 216231641U discloses a motor suspension assembly and a motor suspension structure of an ore vehicle on the day of 04 and 08 in 2022, the motor suspension structure of the ore vehicle comprises a frame, wherein the motor suspension assembly is arranged on the frame, a mounting seat is arranged on the frame and is assembled with the motor suspension assembly through bolts, the motor assembly comprises two suspension brackets, the two suspension brackets are divided into a left suspension bracket and a right suspension bracket, the left suspension bracket and the right suspension bracket are arranged at intervals left and right, each suspension bracket is detachably assembled with the motor, a reinforcing plate is respectively connected with the two suspension brackets, and the reinforcing plate is detachably assembled with at least one of the two suspension brackets, and the device cannot solve the technical problems. There is a need to optimize existing motor suspension arrangements in order to ameliorate or solve at least one of the above problems. Disclosure of utility model The utility model aims to provide a motor suspension structure which can provide an installation position for a wire harness bracket and can improve NVH performance. In order to solve the technical problems, the motor suspension structure comprises a suspension framework, wherein a support connecting structure is arranged on the suspension framework, a buffer structure is arranged in the support connecting structure and is connected with a wire harness support, and the suspension framework is respectively connected with an auxiliary frame and a motor. The support connecting structure comprises a connecting sleeve, the connecting sleeve is arranged at the top of the suspension framework, the buffer structure is arranged in the connecting sleeve, the wire harness support is provided with a connecting rod, and the connecting rod extends into the connecting sleeve and is connected with the suspension framework. The buffer structure comprises a bushing, the bushing is arranged in the connecting sleeve, and the connecting rod is sleeved in the bushing. The bushing comprises an inner pipe and an outer pipe, a rubber layer is arranged between the inner pipe and the outer pipe, the inner pipe is sleeved on the connecting rod, and the outer pipe is abutted against the inner wall of the connecting sleeve. The connecting rod is characterized in that a threaded hole is formed in the suspension framework, the threaded hole is formed in the top of the suspension framework and is communicated with the inner tube, an external thread is formed in the end portion of the connecting rod, and an internal thread matched with the external thread is arranged in the threaded hole. The suspension framework is provided with a mounting hole, a suspension main spring is arranged in the mounting hole, and the suspension main spring is connected with the auxiliary frame. The suspension main spring is provided with a first bolt hole, a first bolt is arranged in the first bolt hole, and the first bolt is connected with the auxiliary frame. The suspension framework is provided with a second bolt hole, a second bolt is arranged in the second bolt hole, and the second bolt is connected with the motor. The suspension framework comprises a larger end part and a smaller end part, the larger end part is respectively provided with the mounting hole and the connecting sleeve, and a plurality of second bolt holes are formed in the smaller end part. The rubber layer is vulcanized rubber. The beneficial effects of the application