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CN-122009371-A - Damping device for electric vehicle

CN122009371ACN 122009371 ACN122009371 ACN 122009371ACN-122009371-A

Abstract

The invention discloses a damping device of an electric vehicle, which relates to the technical field of damping equipment of the electric vehicle and comprises a damping cylinder and a damping rod, wherein the top of the damping rod is connected with an upper connecting component, the bottom of the damping rod is connected in the damping cylinder, the outer part of the damping cylinder is connected with an adjusting cylinder, a lower connecting component is arranged below the adjusting cylinder, the adjusting cylinder is provided with an adjusting component, the adjusting component is connected with a power driving component, the power driving component is arranged outside the damping cylinder, and a damping spring is arranged between the adjusting component and the upper connecting component. According to the damping device for the electric vehicle, through the power driving assembly and the multi-gear design, the damping device is automatically switched to the highest gear when a rider passes through the speed reducing belt rapidly, the compression amount and the supporting force of the damping spring are increased, the problem of insufficient support is solved, the hydraulic damping and the spring cooperate to fully absorb impact energy, and meanwhile the power storage elastic piece slows down the resetting speed, so that the rider is prevented from being separated from the cushion, and the comfort is improved.

Inventors

  • LI BAILU
  • QU JIANI
  • QU ZEYU

Assignees

  • 浙江宇嘉新能源科技股份有限公司

Dates

Publication Date
20260512
Application Date
20260211

Claims (10)

  1. 1. The damping device for the electric vehicle is characterized by comprising a damping cylinder and a damping rod, wherein the top of the damping rod is connected with an upper connecting component, the bottom of the damping rod is connected in the damping cylinder, the outer part of the damping cylinder is connected with an adjusting cylinder, and a lower connecting component is arranged below the adjusting cylinder; the adjusting cylinder is provided with an adjusting component which is connected with a power driving component, and the power driving component is arranged outside the damping cylinder; And a damping spring is arranged between the adjusting component and the upper connecting component.
  2. 2. The electric vehicle damping device according to claim 1, wherein hydraulic oil is filled in the damping cylinder, a limiting plate is arranged in the damping cylinder, a through hole is formed in the center of the limiting plate, and the through hole is used for the damping rod to move up and down.
  3. 3. The damping device for the electric vehicle according to claim 2, wherein the bottom end of the damping rod is connected with a piston head, and the piston head is arranged below the limiting plate and slides relative to the inner wall of the damping cylinder; The upper portion of shock attenuation pole is provided with the connector, be provided with a plurality of slip buttons on the connector, the slip button with power drive assembly looks adaptation.
  4. 4. The electric vehicle damping device according to claim 3, wherein the upper connecting assembly comprises an upper fixing plate connected to the top of the damping rod, a connecting sleeve is arranged above the upper fixing plate, a connecting rod is connected in the connecting sleeve, and a first hinge block is connected above the connecting rod.
  5. 5. The electric vehicle damping device according to claim 4, wherein the adjusting component comprises sliding grooves and sliding plates, sliding blocks are symmetrically arranged on the inner sides of the sliding plates and are connected in the sliding grooves in a sliding manner, two sliding grooves are formed in the outer wall of the adjusting cylinder in a central symmetry manner; The sliding groove comprises a first curve and a second curve, wherein a first clamping position is arranged at one end of the first curve, a second clamping position is arranged at the tail end of the second curve, and a middle clamping position is arranged between the second curve and the first curve.
  6. 6. The electric vehicle damping device according to claim 5, wherein the power driving assembly comprises a rotating cylinder rotatably connected to the outer wall of the damping cylinder, and the inner wall of the rotating cylinder is provided with wave grooves, and the wave grooves comprise a plurality of groups of vertical grooves and inverted V-shaped grooves which are vertically connected; The inverted V-shaped groove and the vertical groove are matched with the sliding button; The lower part of the rotating cylinder is also provided with a one-way limiting component.
  7. 7. The damping device for the electric vehicle according to claim 6, wherein the unidirectional limiting assembly comprises a unidirectional stop wheel arranged outside the damping cylinder, a ratchet groove is formed in the unidirectional stop wheel, a pawl is arranged in the ratchet groove, an accommodating groove is formed in the outer wall of the damping cylinder, one end of the pawl is rotatably connected to one end of the accommodating groove, the other end of the pawl is connected to the other end of the accommodating groove through an elastic connecting piece, and a reset unit is arranged on the pawl; Two perforations are symmetrically formed in two sides of the unidirectional stop wheel, the two perforations are respectively penetrated by two linkage rods, one ends of the two linkage rods are fixedly connected to the lower portion of the rotating cylinder, and the other ends of the two linkage rods are penetrated through the sliding plate and are in sliding connection with the sliding plate.
  8. 8. The electric vehicle damping device according to claim 7, wherein the reset unit comprises a connecting groove formed in one end of the pawl, a push rod is fixedly connected in the connecting groove, the push rod is of an L-shaped structure, and a push block is arranged at the free end of the push rod.
  9. 9. The electric vehicle damping device according to claim 8, wherein the lower connecting assembly comprises a lower fixing plate connected to the lower end of the adjusting cylinder, and a second hinge block is fixedly connected below the lower fixing plate.
  10. 10. The electric vehicle damping device according to claim 9, wherein an elastic force accumulating part is arranged between the lower fixing plate and the sliding plate, an annular boss is arranged below the sliding plate, an annular step is arranged above the lower fixing plate, the lower end of the elastic force accumulating part is abutted in the annular step, and the upper end of the elastic force accumulating part is abutted in the annular boss.

Description

Damping device for electric vehicle Technical Field The invention relates to the technical field of damping equipment of electric vehicles, in particular to a damping device of an electric vehicle. Background The electric vehicle damping device is a core component for guaranteeing riding comfort and safety, absorbs road surface impact, inhibits rebound vibration, reduces fatigue of a rider and protects vehicle components from being damaged simultaneously through the synergistic effect of elastic deformation of a spring and hydraulic damping. In the current mainstream hydraulic damping device of the electric vehicle, a rider generally changes damping softness by manually adjusting the pretightening force of a spring, but the current hydraulic damping device has obvious technical defects in the actual use process: on one hand, when an electric vehicle passes through a severe bump scene such as a deceleration strip rapidly, the spring of the existing damping device is limited by the movement path of the spring, so that impact energy is difficult to be absorbed rapidly and fully, most of impact force is directly transmitted to a vehicle body, so that a rider feels strong in vibration, on the other hand, when the spring resets after impact, the situation that the buttocks of the rider are separated from a cushion is easily caused by overlong resetting travel and excessively high speed, riding comfort is seriously influenced, and in addition, if the damper is adjusted to be too soft for adapting a balanced road surface, the problem of insufficient supporting force can occur when the electric vehicle passes through the deceleration strip rapidly, so that the vehicle body shakes and is aggravated, even the stability is influenced, and potential safety hazards exist. The existing automatic adjusting type damping device focuses on the gear switching of small jolting, is not specially designed for severe impact scenes such as rapid passing of a deceleration strip, and is difficult to consider the shock absorption effect, the resetting stability and the supporting force requirements. Disclosure of Invention The invention aims to provide an electric vehicle damping device which solves the problems in the background art. In order to achieve the above purpose, the invention provides a damping device of an electric vehicle, which comprises a damping cylinder and a damping rod, wherein the top of the damping rod is connected with an upper connecting component, the bottom of the damping rod is connected in the damping cylinder, the outer part of the damping cylinder is connected with an adjusting cylinder, and a lower connecting component is arranged below the adjusting cylinder; the adjusting cylinder is provided with an adjusting component which is connected with a power driving component, and the power driving component is arranged outside the damping cylinder; And a damping spring is arranged between the adjusting component and the upper connecting component. Preferably, hydraulic oil is filled in the shock absorption cylinder, a limiting plate is arranged in the shock absorption cylinder, a through hole is formed in the center of the limiting plate, and the through hole is used for the shock absorption rod to move up and down. Preferably, the bottom end of the shock absorption rod is connected with a piston head, and the piston head is arranged below the limiting plate and slides relative to the inner wall of the shock absorption cylinder; The upper portion of shock attenuation pole is provided with the connector, be provided with a plurality of slip buttons on the connector, the slip button with power drive assembly looks adaptation. Preferably, the upper connecting assembly comprises an upper fixing plate connected to the top of the shock absorption rod, a connecting sleeve is arranged above the upper fixing plate, a connecting rod is connected in the connecting sleeve, and a first hinging block is connected above the connecting rod. Preferably, the adjusting component comprises sliding grooves and sliding plates, sliding blocks are symmetrically arranged on the inner sides of the sliding plates, the sliding blocks are slidably connected in the sliding grooves, two sliding grooves are formed, and the two sliding grooves are symmetrically arranged on the outer wall of the adjusting cylinder in a central mode; The sliding groove comprises a first curve and a second curve, wherein a first clamping position is arranged at one end of the first curve, a second clamping position is arranged at the tail end of the second curve, and a middle clamping position is arranged between the second curve and the first curve. Preferably, the power driving assembly comprises a rotating cylinder rotationally connected to the outer wall of the damping cylinder, a wave groove is formed in the inner wall of the rotating cylinder, and the wave groove comprises a plurality of groups of vertical grooves and inverted V-shaped grooves which are v