Electric control damper assembly
By using an adjustment mechanism to control the rotation of the valve core in the electric-controlled shock absorber assembly, the size of the oil channel is accurately adjusted, and the problem of insufficient adjustment accuracy in the prior art is solved, and high-precision control of the damping value is achieved.
Patent Information
- Application Number
- CN202422045095.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-08-22
AI Technical Summary
The existing electric-controlled shock absorber assembly has insufficient adjustment accuracy. With the long-term use of the return spring, the adjustment accuracy will further deteriorate.
The structure includes an outer cylinder, an inner cylinder, a piston valve, a connecting rod and an adjustment cylinder is adopted. The rotation of the valve core is controlled through the adjustment mechanism and the size of the oil channel is accurately adjusted, thereby achieving accurate control of the damping value.
High-precision control of damping values is achieved, and the adjustment accuracy is deteriorated due to long-term use.
Smart Images
Figure CN222910625U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of shock absorbers, in particular to an electronically controlled shock absorber assembly. Background Art
[0002] The electronically controlled shock absorber system is the electronically controlled suspension system. It can, according to road conditions, various driving conditions or the needs of users, control the electronically controlled shock absorber assembly to change the damping value through the electronic control unit ECU, so as to keep the vehicle body in the most comfortable state and improve stability.
[0003] The existing electronically controlled shock absorber assemblies mostly adopt an external solenoid valve structure to adjust the damping. The external solenoid valve connects the inner cylinder and the outer cylinder of the shock absorber, and adjusts the speed of the hydraulic oil flowing from the inner cylinder to the outer cylinder through the external solenoid valve, so as to achieve the purpose of adjusting the damping force. The external solenoid valve generally adjusts the position of the valve core through the action of electromagnetic force and the return spring, changes the relationship between the valve core and the oil passage, and thus controls the size of the oil passage to play a role in adjusting the damping value. However, the general external solenoid valve is slightly lacking in adjustment accuracy. With the long-term use of the return spring, when adjusting the position of the valve core through electromagnetic force, the adjustment accuracy will further deteriorate. Summary of the Utility Model
[0004] The utility model provides an electronically controlled shock absorber assembly with relatively high adjustment accuracy, which solves the above problems existing in the prior art during use.
[0005] The technical solution of the utility model is realized as follows: An electronically controlled shock absorber assembly includes an outer cylinder, an inner cylinder sleeved in the outer cylinder, a piston valve and a connecting rod. The inner cylinder has an inner cavity, and there is an outer cavity between the outer cylinder and the inner cylinder. The piston valve is movably arranged in the inner cavity. The lower end of the connecting rod is connected to the piston valve, and the upper end of the connecting rod penetrates upward through the inner cylinder. It is characterized in that: A lower sleeve is fixedly connected to the lower ends of the inner cylinder and the outer cylinder. One side of the lower sleeve is integrally formed with an adjusting cylinder. The lower sleeve is provided with a lower oil passage communicating from the inner cavity to the inside of the adjusting cylinder and an upper oil passage penetrating from the outer cavity to the inside of the adjusting cylinder. A valve seat is arranged in the adjusting cylinder. The valve seat is provided with an oil passage communicating the upper oil passage and the lower oil passage. A valve core corresponding to the oil passage is threadedly connected to the valve seat. The adjusting cylinder is provided with an adjusting mechanism for controlling the rotation of the valve core.
[0006] Preferably, the adjusting mechanism includes a cover body, a rotating member and a driving member. An adjusting cavity with an upward opening is formed in the adjusting cylinder. The cover body covers the upper end of the adjusting cavity. The upper end of the valve seat is fixedly connected to the cover body. The driving member is located on the cover body and is used to drive the rotating member to rotate. A sliding hole is formed in the upper end of the valve core, and the lower end of the rotating member is slidably inserted into the sliding hole.
[0007] Preferably, one end of the rotating member inserted into the sliding hole cannot rotate relative to the valve core.
[0008] Preferably, the driving member is a motor, and an output shaft of the motor is fixedly connected to the rotating member.
[0009] Preferably, a limiting circular seat is integrally formed on the rotating member, there is a limiting rotating cavity between the cover body and the upper end of the valve seat, and the limiting circular seat is rotationally fitted in the limiting rotating cavity.
[0010] Preferably, a stop block is fixedly connected to the middle position of the adjusting cavity of the valve seat. The stop block is located between the upper oil passage and the lower oil passage, and a secondary oil passage is formed on the stop block.
[0011] Preferably, a seal and a guide are fixedly connected to the upper ends of the outer cylinder and the inner cylinder. The connecting rod is movably fitted in the guide, and an upper oil passage communicating the inner cavity and the outer cavity is formed on the guide.
[0012] In summary, the beneficial effects of the present utility model are as follows:
[0013] 1. The present utility model controls the rotation of the valve core through an adjusting mechanism, so that the valve core threadedly connected to the valve seat changes its position relative to the oil passage as it rotates. This structure can accurately adjust the position of the valve core, thereby achieving the purpose of accurately controlling the damping value, and it is not easy to cause the adjustment accuracy of the valve core to deteriorate due to long-term use. Description of the Drawings
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0015] Figure 1 It is a schematic diagram of the overall structure of the present utility model;
[0016] Figure 2 It is Figure 1 a partial enlarged view of part A in
[0017] Figure 3 It is Figure 2 a partial enlarged view of part B in
[0018] In the figure: 1. Outer cylinder; 11. Outer cavity; 2. Inner cylinder; 21. Inner cavity; 31. Piston valve; 32. Connecting rod; 4. Lower sleeve; 41. Lower oil passage; 42. Upper oil passage; 5. Adjusting cylinder; 51. Adjusting cavity; 61. Valve seat; 611. Oil passage; 62. Valve core; 621. Sliding hole; 63. Cover body; 631. Limited rotation cavity; 64. Rotating part; 641. Limited circular seat; 65. Motor; 7. Stopper; 71. Auxiliary oil passage; 81. Seal; 82. Guide; 821. Upper end oil passage. Detailed implementation mode
[0019] Next, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention. Figures 1-3
[0020] Embodiment:
[0021] Figures 1 to 3 As shown, the present invention discloses an electronically controlled shock absorber assembly, which includes an outer cylinder 1, an inner cylinder 2 sleeved in the outer cylinder 1, a piston valve 31 and a connecting rod 32. An inner cavity 21 is provided in the inner cylinder 2, and an outer cavity 11 is provided between the outer cylinder 1 and the inner cylinder 2. The piston valve 31 is movably arranged in the inner cavity 21. The lower end of the connecting rod 32 is connected to the piston valve 31, and the upper end of the connecting rod 32 penetrates upward through the inner cylinder 2. In the present invention, a lower sleeve 4 is fixedly connected to the lower ends of the inner cylinder 2 and the outer cylinder 1, and an adjusting cylinder 5 is integrally formed on one side of the lower sleeve 4. A lower oil passage 41 communicating from the inner cavity 21 to the inside of the adjusting cylinder 5 and an upper oil passage 42 communicating from the outer cavity 11 to the inside of the adjusting cylinder 5 are provided on the lower sleeve 4. Among them, a valve seat 61 is provided in the adjusting cylinder 5, and an oil passage 611 communicating the upper oil passage 42 and the lower oil passage 41 is provided on the valve seat 61. In addition, a valve core 62 corresponding to the oil passage 611 is also threadedly connected to the valve seat 61, and an adjusting mechanism for controlling the valve core 62 to rotate is provided on the adjusting cylinder 5.
[0022] Specifically, the adjusting mechanism includes a cover body 63, a rotating member 64 and a driving member. The driving member is a motor 65. An adjusting cavity 51 with an upward opening is formed in the adjusting cylinder 5. The cover body 63 covers the upper end of the adjusting cavity 51. Among them, the upper end of the valve seat 61 is fixedly connected to the cover body 63, and the motor 65 is fixedly installed on the cover body 63. The output shaft of the motor 65 is fixedly connected to the rotating member 64 to drive the rotating member 64 to rotate. The upper end of the valve core 62 is provided with a sliding hole 621, and the lower end of the rotating member 64 is slidably inserted into the sliding hole 621. It should be noted that the end of the rotating member 64 inserted into the sliding hole 621 cannot rotate relative to the valve core 62. That is to say, the end of the rotating member 64 inserted into the sliding hole 621 cannot be cylindrical, and the sliding hole 621 cannot be a cylindrical hole. The end of the rotating member 64 inserted into the sliding hole 621 preferably has a columnar shape with an elliptical cross-section, and the sliding hole 621 matches the shape of the rotating member 64, so that the end of the rotating member 64 inserted into the sliding hole 621 can only slide up and down on the sliding hole 621 and cannot rotate. In this way, the rotating member 64 can drive the valve core 62 to rotate when rotating.
[0023] When the present utility model adjusts the damping value, the motor 65 drives the rotating member 64 to rotate, and the rotating member 64 drives the valve core 62 to rotate. Since the valve core 62 is threadedly connected to the valve seat 61, the valve core 62 will move up and down relative to the rotating member 64 when rotating. During the movement of the valve core 62, the position of the oil passage 611 is changed. The closer the valve core 62 is to the oil passage 611, the slower the oil passes through the oil passage 611, and the damping increases at this time. The farther the valve core 62 is from the oil passage 611, the faster the oil passes through the oil passage 611, and the damping decreases at this time. The present utility model can accurately adjust the position of the valve core 62, so as to achieve the purpose of accurately controlling the damping value, and it is not easy to cause the adjustment accuracy of the valve core 62 to deteriorate due to long-term use.
[0024] In the present utility model, a limiting circular seat 641 is integrally formed on the rotating member 64, and there is a limiting rotation cavity 631 between the cover body 63 and the upper end of the valve seat 61. The limiting circular seat 641 is rotatably fitted in the limiting rotation cavity 631. This structure can limit the up and down movement of the rotating member 64 and maintain the stability of the rotating member 64.
[0025] In the present utility model, a stopper 7 is further fixedly connected to the middle position of the valve seat 61 in the adjusting cavity 51. The stopper 7 is located between the upper oil passage 42 and the lower oil passage 41. A secondary oil passage 71 is provided on the stopper 7, and the secondary oil passage 71 can also allow the oil to flow from the lower oil passage 41 to the upper oil passage 42, preventing the oil from being unable to flow between the outer cavity 11 and the inner cavity 21 when the oil passage 611 is blocked.
[0026] As shown Figure 3 in the figure, a seal 81 and a guide 82 are fixedly connected to the upper ends of the outer cylinder 1 and the inner cylinder 2. The connecting rod 32 is movably fitted in the guide 82. The seal 81 prevents oil leakage, and the guide 82 can maintain the smoothness of the up-and-down sliding of the connecting rod 32. In addition, an upper oil passage 821 communicating the inner cavity 21 and the outer cavity 11 is provided on the guide 82. The upper oil passage 821 is used for the oil in the inner cavity 21 and the outer cavity 11 to communicate. When the connecting rod 32 drives the piston valve 31 to move downward, the oil in the inner cavity 21 below the piston valve 31 enters the lower oil passage 41, then passes through the auxiliary oil passage 71 and the oil passage 611, and then enters the outer cavity 11 through the upper oil passage 42, and reaches the inner cavity 21 above the piston valve 31 through the upper oil passage 821. When the connecting rod 32 drives the piston valve 31 to move upward, the oil flow direction is reversed.
[0027] At the same time, it should be pointed out that the terms used in the present invention, such as "front", "rear", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present invention.
[0028] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. An electronically controlled shock absorber assembly, comprising an outer cylinder, an inner cylinder sleeved in the outer cylinder, a piston valve and a connecting rod, wherein the inner cylinder has an inner cavity, an outer cavity is provided between the outer cylinder and the inner cylinder, the piston valve is movably arranged in the inner cavity, the lower end of the connecting rod is connected to the piston valve, and the upper end of the connecting rod penetrates upward out of the inner cylinder, characterized in that: The lower ends of the inner and outer cylinders are fixedly connected with a lower sleeve, an adjusting cylinder is integrally formed on one side of the lower sleeve, a lower oil passage connecting from the inner cavity to the adjusting cylinder and an upper oil passage connecting from the outer cavity to the adjusting cylinder are provided on the lower sleeve, a valve seat is provided in the adjusting cylinder, an oil passage connecting the upper oil passage and the lower oil passage is provided on the valve seat, a valve core corresponding to the oil passage is threadedly connected to the valve seat, and an adjusting mechanism for controlling the rotation of the valve core is provided on the adjusting cylinder.
2. The electronically controlled shock absorber assembly according to claim 1, characterized in that: The regulating mechanism includes a cover body, a rotating part and a driving part. The regulating cylinder is provided with an regulating cavity with an opening facing upward. The cover body is covered on the upper end of the regulating cavity. The upper end of the valve seat is fixedly connected to the cover body. The driving part is located on the cover body and is used to drive the rotating part to rotate. The upper end of the valve core is provided with a sliding hole, and the lower end of the rotating part is slidably inserted in the sliding hole.
3. The electronically controlled shock absorber assembly according to claim 2, characterized in that: The end of the rotating member inserted into the sliding hole cannot rotate relative to the valve core.
4. The electronically controlled shock absorber assembly according to claim 3 is characterized in that: The driving member is a motor, and the output shaft of the motor is fixedly connected to the rotating member.
5. The electronically controlled shock absorber assembly according to claim 3, characterized in that: A limited position round seat is integrally formed on the rotating member, a limited position rotation cavity is provided between the cover body and the upper end of the valve seat, and the limited position round seat is rotatably fitted in the limited position rotation cavity.
6. The electronically controlled shock absorber assembly according to claim 3, characterized in that: The valve seat is fixedly connected with a stopper at the middle position of the regulating cavity. The stopper is located between the upper oil passage and the lower oil passage, and an auxiliary oil passage is opened on the stopper.
7. The electronically controlled shock absorber assembly according to claim 1, characterized in that: The upper ends of the outer cylinder and the inner cylinder are fixedly connected with a seal and a guide, the connecting rod is movably fitted in the guide, and the guide is provided with an upper end oil channel connecting the inner cavity and the outer cavity.