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CN-121993536-A - Shock absorber, suspension and vehicle

CN121993536ACN 121993536 ACN121993536 ACN 121993536ACN-121993536-A

Abstract

The invention discloses a shock absorber, a suspension and a vehicle, wherein the shock absorber comprises a cylinder assembly, a valve seat and a hydraulic unit, wherein the cylinder assembly is provided with a working cavity, the valve seat is connected to one end of the cylinder assembly and is provided with a flow passage, the valve seat is provided with an adjusting valve group and the hydraulic unit, and the adjusting valve group and the hydraulic unit are respectively communicated with the working cavity through the flow passage. According to the embodiment of the invention, the shock absorber can adjust the posture of the vehicle body, and the shock absorber utilizes the adjusting valve group to work together with the hydraulic unit, so that the shock absorber has the advantages of quick response, high efficiency and the like.

Inventors

  • ZHU JIHONG
  • YANG WANG
  • YAN TINGHAO

Assignees

  • 比亚迪股份有限公司

Dates

Publication Date
20260508
Application Date
20260313

Claims (15)

  1. 1. A shock absorber (1), characterized by comprising: a barrel assembly (100), the barrel assembly (100) being provided with a working chamber (111); The valve seat (200), the valve seat (200) connect in the one end of barrel subassembly (100), valve seat (200) are constructed and are had the runner, be equipped with adjusting valve group (300) and hydraulic unit (350) on valve seat (200), adjusting valve group (300) and hydraulic unit (350) respectively through the runner with working chamber (111) intercommunication.
  2. 2. The shock absorber (1) according to claim 1, wherein the working chamber (111) includes a first working chamber (112) and a second working chamber (113) arranged in an axial direction of the cylinder assembly (100), the regulator valve block (300) and the hydraulic unit (350) being in communication with the first working chamber (112) and the second working chamber (113), respectively, through the flow passage; When the shock absorber (1) is in a recovery working condition, fluid in the first working cavity (112) flows to the second working cavity (113) through the regulating valve group (300) and the hydraulic unit (350) respectively; When the shock absorber (1) is in a compression working condition, fluid in the second working chamber (113) flows to the first working chamber (112) through the regulating valve group (300) and the hydraulic unit (350) respectively.
  3. 3. The shock absorber (1) according to claim 2, wherein the barrel assembly (100) is further provided with: an intermediate chamber (121), wherein one end of the intermediate chamber (121) is communicated with the first working chamber (112), and the other end of the intermediate chamber (121) is communicated with the flow passage; and the oil storage cavity (131) is communicated with the flow passage.
  4. 4. A shock absorber (1) according to claim 3, wherein the flow passage comprises: A first main flow passage (210), wherein one end of the first main flow passage (210) is communicated with the oil storage cavity (131), and the other end of the first main flow passage (210) is communicated with the regulating valve group (300); A second main flow passage (220), wherein one end of the second main flow passage (220) is communicated with the middle cavity (121), and the other end of the second main flow passage (220) is respectively communicated with the regulating valve group (300) and the hydraulic unit (350); And one end of the third main flow passage (230) is communicated with the second working cavity (113), and the other end of the third main flow passage (230) is respectively communicated with the regulating valve group (300) and the hydraulic unit (350).
  5. 5. The shock absorber (1) according to claim 4, wherein the regulating valve group (300) is adapted to regulate the flow of fluid from the second main flow channel (220) to the first main flow channel (210), and/or, The regulating valve group (300) is used for regulating the flow rate of the fluid flowing to the first main flow passage (210) from the third main flow passage (230).
  6. 6. The shock absorber (1) of claim 5, wherein the regulating valve group (300) comprises: -a first solenoid valve (310), the first solenoid valve (310) being connected to the valve seat (200), the first solenoid valve (310) communicating the first primary flow channel (210) and the second primary flow channel (220), the first solenoid valve (310) being adapted to regulate a flow of fluid from the second primary flow channel (220) to the first primary flow channel (210); -a second solenoid valve (320), said second solenoid valve (320) being connected to said valve seat (200), said second solenoid valve (320) communicating said first primary flow channel (210) and said third primary flow channel (230), said second solenoid valve (320) being adapted to regulate the flow of fluid from said third primary flow channel (230) to said first primary flow channel (210).
  7. 7. The shock absorber (1) of claim 6, wherein the flow passage further comprises: A first sub-runner (240), the first sub-runner (240) communicating the first main runner (210) and the first solenoid valve (310); a second sub-runner (250), the second sub-runner (250) communicating the second main runner (220) with the first solenoid valve (310); A third sub-runner (260), the third sub-runner (260) communicating the first main runner (210) and the second solenoid valve (320); -a fourth sub-runner (270), the fourth sub-runner (270) communicating the third main runner (230) with the second solenoid valve (320).
  8. 8. The shock absorber (1) of claim 4 wherein the flow passage further comprises: a fifth sub-flow passage (280), the fifth sub-flow passage (280) communicating the second main flow passage (220) and the hydraulic unit (350); -a sixth sub-runner (290), the sixth sub-runner (290) communicating the third main runner (230) with the hydraulic unit (350).
  9. 9. The shock absorber (1) according to claim 8, further comprising: A first sensor (351), the first sensor (351) being disposed on the valve seat (200) and being located in the fifth sub-flow passage (280), the first sensor (351) being configured to detect fluid pressure and temperature within the fifth sub-flow passage (280), and/or, And a second sensor (352), wherein the second sensor (352) is arranged on the valve seat (200) and is positioned in the sixth sub-flow passage (290), and the second sensor (352) is used for detecting the fluid pressure and the temperature in the sixth sub-flow passage (290).
  10. 10. The shock absorber (1) according to claim 4, wherein the first main flow passage (210), the second main flow passage (220) and the third main flow passage (230) are arranged at intervals in a radial direction of the valve seat (200), and/or, The first main flow passage (210) and the second main flow passage (220) respectively extend along the circumferential direction of the valve seat (200), and the radial projection of the first main flow passage (210) and the second main flow passage (220) at least partially do not coincide along the valve seat (200).
  11. 11. A shock absorber (1) according to claim 3, wherein the barrel assembly (100) comprises: -a working cylinder (110), said working cylinder (110) being provided with said working chamber (111); An intermediate cylinder (120), the intermediate cylinder (120) being arranged radially outside the working cylinder (110), the intermediate chamber (121) being formed between the intermediate cylinder (120) and the working cylinder (110), and/or, And an outer cylinder (130), wherein the outer cylinder (130) is arranged on the radial outer side of the middle cylinder (120), and the oil storage cavity (131) is formed between the outer cylinder (130) and the middle cylinder (120).
  12. 12. A shock absorber (1) according to claim 3, further comprising: A first piston assembly (600), the first piston assembly (600) being movably disposed within the oil storage chamber (131), the first piston assembly (600) dividing the oil storage chamber (131) into a first chamber (132) and a second chamber (133), the second chamber (133) being in communication with the flow passage; And a limiting piece (134), wherein the limiting piece (134) is arranged at one end of the second cavity (133) close to the valve seat (200), and the limiting piece (134) is suitable for contacting with the first piston assembly (600) to prevent the first piston assembly (600) from moving.
  13. 13. The shock absorber (1) according to claim 1, wherein at least part of the regulator valve group (300) and at least part of the hydraulic unit (350) are arranged at intervals along the circumferential direction of the valve seat (200).
  14. 14. Suspension, characterized in that it comprises a shock absorber (1) according to any one of claims 1-13.
  15. 15. A vehicle comprising a suspension according to claim 14.

Description

Shock absorber, suspension and vehicle Technical Field The invention relates to the technical field of vehicles, in particular to a shock absorber, a suspension and a vehicle. Background The damper in the related art can generally adjust the flow rate of fluid, and thus can adjust the damping force of the damper under a compression condition or a recovery condition. However, the structure of the shock absorber in the related art is unreasonable, so that the damping adjustment response of the shock absorber is slow, the efficiency is low, and the shock absorbing effect is poor. Disclosure of Invention The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide a shock absorber that can work cooperatively with a hydraulic unit using a regulating valve group, and has advantages of quick response and high efficiency. The invention also provides a suspension with the shock absorber. The invention further provides a vehicle with the suspension. In order to achieve the above object, according to a first aspect of the present invention, there is provided a shock absorber including a cylinder assembly provided with a working chamber, a valve seat connected to one end of the cylinder assembly, the valve seat being configured with a flow passage, and a regulating valve group and a hydraulic unit being provided on the valve seat, the regulating valve group and the hydraulic unit being respectively communicated with the working chamber through the flow passage. Therefore, the flow channel is directly formed on the valve seat, the regulating valve group and the hydraulic unit are arranged on the valve seat, the flow channel of the shock absorber can be a hard direct-current channel, the flow channel distance is short, the shock absorber has the capability of quickly building pressure, the damping response of the hydraulic unit can be quick, and the damping response of the hydraulic unit is the basis of the cooperative work of the regulating valve group and the hydraulic unit, so that the shock absorber can utilize the cooperative work of the regulating valve group and the hydraulic unit, and has the advantages of quick response, high efficiency and the like. According to some embodiments of the invention, the working chamber comprises a first working chamber and a second working chamber which are arranged along the axial direction of the cylinder assembly, the regulating valve group and the hydraulic unit are respectively communicated with the first working chamber and the second working chamber through the flow passages, wherein when the shock absorber is in a recovery working condition, fluid in the first working chamber flows to the second working chamber through the regulating valve group and the hydraulic unit respectively, and when the shock absorber is in a compression working condition, fluid in the second working chamber flows to the first working chamber through the regulating valve group and the hydraulic unit respectively. According to some embodiments of the invention, the cylinder assembly is further provided with an intermediate cavity, one end of the intermediate cavity is communicated with the first working cavity, the other end of the intermediate cavity is communicated with the flow passage, and an oil storage cavity is communicated with the flow passage. According to some embodiments of the invention, the flow passage comprises a first main flow passage, a second main flow passage and a third main flow passage, wherein one end of the first main flow passage is communicated with the oil storage cavity, the other end of the first main flow passage is communicated with the regulating valve group, one end of the second main flow passage is communicated with the middle cavity, the other end of the second main flow passage is respectively communicated with the regulating valve group and the hydraulic unit, one end of the third main flow passage is communicated with the second working cavity, and the other end of the third main flow passage is respectively communicated with the regulating valve group and the hydraulic unit. According to some embodiments of the invention, the valve block is used for adjusting the flow rate of the fluid flowing from the second main flow channel to the first main flow channel, and/or the valve block is used for adjusting the flow rate of the fluid flowing from the third main flow channel to the first main flow channel. According to some embodiments of the invention, the regulating valve group comprises a first electromagnetic valve connected to the valve seat, the first electromagnetic valve communicating with the first main flow passage and the second main flow passage, the first electromagnetic valve being used for regulating the flow rate of fluid flowing from the second main flow passage to the first main flow passage, and a second electromagnetic valve connected to the val