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CN-120645606-B - New energy automobile electricity drives bracket arm assembly structure

CN120645606BCN 120645606 BCN120645606 BCN 120645606BCN-120645606-B

Abstract

The invention discloses a new energy automobile electric drive bracket assembly structure, which relates to the related field of new energy automobiles and comprises a bracket, wherein two sides of the bracket are connected with a fixing frame through a connecting frame, the top of the fixing frame is sleeved with a bracket, the top of the bracket is symmetrically provided with a piston rod, the top of the piston rod is slidably connected to the top of a cylinder body, the inner sides of the left end and the right end of the bracket are provided with buffer adjusting components, and the inside of the fixing frame is provided with a pretightening force adjusting component. According to the novel energy automobile electric drive bracket arm assembly structure, when the automobile runs and jolts in the use process, the stress sensor of the connecting component and the displacement sensor of the buffer component feed back relevant information to the feedback control unit, and after the feedback control unit judges working conditions and component states, the electric drive is controlled to cooperatively adjust damping force of the piston rod and the cylinder body and pretightening force between the fixing frame and the support, so that the piston rod and the cylinder body cooperatively resist impact force or share force, and anti-jolt and anti-deformation capacity is improved.

Inventors

  • WANG YANG
  • WANG ZHENG
  • XI GUOHUA

Assignees

  • 常州弘敢电器科技有限公司

Dates

Publication Date
20260512
Application Date
20250808

Claims (7)

  1. 1. The utility model provides a new energy automobile electricity drives bracket assembly structure, includes bracket (1), the both sides symmetry of bracket (1) rotates link (2) of connection, be provided with mount (3) on link (2), the top cover of mount (3) is equipped with support (4), the top and the frame bottom of support (4) are connected fixedly, the top symmetry at both ends is provided with piston rod (5) about bracket (1), the top sliding connection of piston rod (5) is in the top of cylinder body (6), the top and the frame bottom fixed connection of cylinder body (6), piston rod (5) and cylinder body (6) outside are provided with coil spring (7); The device is characterized in that a displacement sensor (15) is arranged on the piston rod (5), buffer adjusting components are arranged on the inner sides of the left end and the right end of the bracket (1), and the buffer adjusting components are used for adjusting the using states of the piston rod (5) and the cylinder body (6) through the feedback quantity of the displacement sensor (15) so as to buffer jolt impact; the buffer adjusting component also comprises a first inner cavity (8) which is arranged in the left end and the right end of the bracket (1); A stress sensor (22) is arranged on one side of the fixing frame (3) opposite to the support (4), a pretightening force adjusting component is arranged in the fixing frame (3), and the pretightening force adjusting component cooperates with a buffering adjusting mechanism to improve the whole anti-bump and anti-deformation capacity of the bracket arm, so that the stable running of the vehicle body is ensured; The pretightening force adjusting assembly comprises a second inner cavity (16) arranged in the fixed frame (3), the second inner cavity (16) is communicated with the inner side bottom of the first inner cavity (8) through a connecting pipe, the lower part of the first inner cavity (8) is filled with oil liquid, a movable part (17) is connected in the second inner cavity (16) in a sliding manner, and a second spring (18) is arranged between the movable part (17) and the second inner cavity (16); the outer side end part of the movable piece (17) is connected to the inner side middle part of the screw rod (21), the screw rod (21) is rotationally connected to the outer part of the fixed frame (3), the outer side of the screw rod (21) is in threaded connection with the bracket (4), the fixed frame (3) is of a rectangular structure, and the right outer part of the fixed frame (3) is in sliding connection with the left inner part of the bracket (4); the middle outer side of the movable piece (17) is fixedly provided with a lug (19), the lug (19) is slidably connected in a spiral groove (20), and the spiral groove (20) is formed in the inner wall of the screw (21).
  2. 2. The electric drive bracket arm assembly structure of the new energy automobile according to claim 1, wherein the buffer adjusting assembly comprises magnetic fluid filled between the piston rod (5) and the cylinder body (6), an electromagnetic coil (14) is wound on the outer side of the top of the piston rod (5), the magnetic force of the electromagnetic coil (14) influences the flowing state of the magnetic fluid, the magnetic fluid is liquid in the weak magnetic field, and the magnetic fluid is in a chain structure to block the flowing of the liquid after the magnetic field is enhanced.
  3. 3. The electric drive bracket arm assembly structure of the new energy automobile according to claim 2 is characterized in that electromagnetic valves (9) for feeding and discharging oil are symmetrically arranged at the top of the first inner cavity (8), and the directions of the two electromagnetic valves (9) are opposite.
  4. 4. The electric drive bracket arm assembly structure of the new energy automobile according to claim 3, wherein the top of the inner side of the first inner cavity (8) is slidably connected with a squeezing plate (10), the bottom of the squeezing plate (10) is abutted against a piezoelectric sheet (11), the bottom of the piezoelectric sheet (11) is connected with the bottom of the first inner cavity (8) through a first spring (12), and the piezoelectric sheet (11) is in sealing fit sliding with the inner wall of the first inner cavity (8).
  5. 5. The electric drive bracket arm assembly structure of the new energy automobile according to claim 4, wherein electric quantity generated by the piezoelectric sheet (11) is stored in the storage battery (13), the storage battery (13) is arranged inside the left end and the right end of the bracket (1), feedback control units are arranged inside the left end and the right end of the bracket (1), and the storage battery (13) supplies power to the electromagnetic coil (14) to improve magnetic force.
  6. 6. The electric drive bracket assembly structure of the new energy automobile of claim 1, wherein the movable piece (17) is integrally arranged in a T-shaped structure, the end part of the movable piece (17) is arranged in a rectangular structure, and the middle part of the movable piece (17) is arranged in a cylindrical structure.
  7. 7. The electric drive bracket assembly structure of the new energy automobile of claim 6, wherein the screw (21) drives the screw (21) to form a rotating structure through the spiral groove (20) and the convex block (19), and the screw (21) drives the bracket (4) to move outside the fixing frame (3) to form a pre-tightening structure.

Description

New energy automobile electricity drives bracket arm assembly structure Technical Field The invention relates to the technical field related to new energy automobiles, in particular to a new energy automobile electric drive bracket assembly structure. Background The new energy automobile electric drive bracket arm assembly structure (hanging front bracket) is an important part of an automobile, and the new energy automobile electric drive bracket arm assembly is a core bearing part for connecting a front suspension, an electric drive system and a chassis and is required to bear the weight of the electric drive system, the torque transmitted by power and the impact load of road bump; The traditional steel or aluminum alloy welding structure is easy to generate stress concentration under high-frequency impact, deformation or cracks are caused, the rigid connection design cannot effectively absorb road surface vibration, driving comfort is affected, vibration fatigue of an electric driving system and a battery can be further aggravated, in the using process of the electric driving bracket assembly, a connecting part between a vehicle body and a bracket and a buffer part between the bracket and the vehicle body usually work independently, an effective cooperative feedback mechanism is lacked, when complex road conditions are met, buffer strength and connection rigidity are difficult to accurately adjust, anti-bump and anti-deformation effects are poor, and driving experience and vehicle service life are affected. Disclosure of Invention The invention aims to provide a new energy automobile electric drive bracket assembly structure, which aims to solve the problems that in the prior new energy automobile electric drive bracket assembly structure provided in the background art, in the use process, the rigid connection design cannot effectively absorb road surface vibration, in the electric drive bracket assembly, a connecting part between a vehicle body and a bracket and a buffer part between the bracket and the vehicle body usually work independently, an effective cooperative feedback mechanism is lacked, and when the complex road condition is met, the buffer force and the connection rigidity are difficult to accurately adjust, so that the anti-bump and anti-deformation effects are poor, and the driving experience and the service life of the vehicle are influenced. The invention provides a new energy automobile electric drive bracket arm assembly structure, which comprises a bracket, wherein connecting frames are symmetrically and rotatably connected on two sides of the bracket, a fixing frame is arranged on the connecting frames, a bracket is sleeved at the top of the fixing frame, the top of the bracket is fixedly connected with the bottom of a frame, piston rods are symmetrically arranged at the top of the left end and the right end of the bracket, the top of each piston rod is slidably connected with the top of a cylinder body, the top of the cylinder body is fixedly connected with the bottom of the frame, and a spiral spring is arranged outside each piston rod and each cylinder body; The piston rod is provided with a displacement sensor, the inner sides of the left end and the right end of the bracket are provided with buffer adjusting components, and the buffer adjusting components adjust the use states of the piston rod and the cylinder body through the feedback quantity of the displacement sensor to buffer jolt impact; The support is characterized in that a stress sensor is arranged on one side of the fixing frame opposite to the support, a pretightening force adjusting assembly is arranged in the fixing frame, and the pretightening force adjusting assembly cooperates with a buffering adjusting mechanism to improve the overall anti-jolt and anti-deformation capacity of the supporting arm, so that the stable running of the vehicle body is ensured. Furthermore, the buffer adjusting component comprises magnetic fluid filled between the piston rod and the cylinder body, an electromagnetic coil is wound on the outer side of the top of the piston rod, the magnetic force of the electromagnetic coil influences the flowing state of the magnetic fluid, the magnetic fluid is liquid in a weak magnetic field, and the magnetic fluid is in a chain structure after the magnetic field is enhanced to block the flowing of the liquid. Further, the buffering adjusting component further comprises a first inner cavity formed in the left end and the right end of the bracket, electromagnetic valves for oil inlet and outlet are symmetrically arranged at the top of the first inner cavity, and the flow directions of the two electromagnetic valves are opposite. Further, the inboard top sliding connection of first inner chamber has the stripper plate, the bottom conflict of stripper plate has the piezoelectric plate, the bottom of piezoelectric plate is connected with the bottom of first inner chamber through first spring, the piezoel