Shock absorbers and shock absorber hydraulic system
By adopting an independent component and staggered layout for the oil pipe interface on the shock absorber, the interference problem of the oil pipe interface in a confined space is solved, achieving more flexible assembly and better hydraulic performance, thereby improving vehicle safety and component commonality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 采埃孚汽车系统(张家港)有限公司
- Filing Date
- 2025-08-05
- Publication Date
- 2026-07-03
AI Technical Summary
The existing shock absorber oil pipe interface design is prone to interference in the confined space of the car chassis, resulting in installation difficulties and inflexible layout, which affects the installation of parts and vehicle safety.
Two oil pipe interfaces, each formed as an independent component and staggered in layout, are used to create a split interface design. They are arranged in appropriate positions on the shock absorber body to avoid interference and improve assembly convenience and versatility.
It solves the problem of difficult layout of oil pipe interfaces in confined spaces, improves assembly convenience and flow channel design, optimizes hydraulic performance, and enhances vehicle safety and parts commonality.
Smart Images
Figure CN224453500U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of automotive suspension technology, and more specifically, to shock absorbers and shock absorber hydraulic systems. Background Technology
[0002] The fully active shock absorber uses a hydraulic pump to adjust the oil in the compression chamber and the recovery chamber of the shock absorber, thereby adjusting the piston rod of the shock absorber and achieving the purpose of adjusting the vehicle height.
[0003] To connect the hydraulic pump to the compression and recovery chambers of the shock absorber, the current approach involves integrating two oil pipe interfaces into an interface assembly on the shock absorber. These two interfaces are typically arranged side-by-side on the assembly, each connecting to one end of the hydraulic pump via an oil pipe. However, this approach has a problem: with the continuous development of automotive chassis technology, more and more electronic control components are being placed on the chassis, resulting in extremely limited installation space. This often leads to situations where parts cannot be installed due to interference or insufficient clearance. The design of integrating the two oil pipe interfaces side-by-side on the interface assembly also faces the challenge of interference during placement and installation in the suspension system.
[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content
[0005] This application provides a shock absorber and a shock absorber oil circuit system, which utilizes two oil pipe interfaces that are formed as independent components and are staggered to form a split interface design, providing layout flexibility, assembly convenience and universality across all vehicle models.
[0006] According to one aspect of this application, a vibration damper is provided, comprising: a vibration damper body including a compression chamber and a recovery chamber; a first oil pipe interface mounted on the vibration damper body and connected to an oil passage of the compression chamber; and a second oil pipe interface mounted on the vibration damper body and connected to an oil passage of the recovery chamber; wherein the first oil pipe interface and the second oil pipe interface are each formed as independent components, and the first oil pipe interface and the second oil pipe interface are staggered in arrangement.
[0007] In some embodiments, the first tubing interface and the second tubing interface are arranged asymmetrically and not side by side.
[0008] In some embodiments, the installation positions and / or orientations of the first oil pipe interface and the second oil pipe interface are misaligned.
[0009] In some embodiments, the installation positions and orientations of the first tubing interface and the second tubing interface are misaligned radially and / or axially and / or circumferentially.
[0010] In some embodiments, the shock absorber further includes: an interface assembly housing mounted on the shock absorber body, wherein the first oil pipe interface and the second oil pipe interface are respectively mounted on the interface assembly housing.
[0011] In some embodiments, the interface assembly housing and the shock absorber body, and the first oil pipe interface and the second oil pipe interface and the interface assembly housing are respectively connected by screws.
[0012] In some embodiments, the interface assembly housing is formed into an irregular shape, and the interface assembly housing is provided with reinforcing ribs.
[0013] According to another aspect of this application, a shock absorber hydraulic circuit system is provided, the shock absorber hydraulic circuit system being configured with a shock absorber as described in any of the above embodiments, wherein the first oil pipe interface and the second oil pipe interface are respectively connected to both ends of a hydraulic pump via corresponding hydraulic oil pipes, so that the hydraulic pump, the compression chamber and the recovery chamber form a series circuit.
[0014] The beneficial effects of this application compared to the prior art include at least the following:
[0015] This application utilizes two oil pipe interfaces, each formed as an independent component and staggered in layout, to create a split interface design. This solves the spatial interference and layout difficulties caused by fixed positions (side-by-side, integrated, etc.) of the two oil pipe interfaces and their connected oil pipes. The first and second oil pipe interfaces can be arranged in suitable positions on the shock absorber body as needed, simplifying assembly operations in confined spaces, greatly improving the flexibility of interface layout and assembly convenience, and effectively avoiding interference with other components, thus optimizing the shock absorber's oil circuit and hydraulic performance. Thanks to the split and independent design of the first and second oil pipe interfaces, each oil pipe can have a better layout, thereby optimizing the flow channel design and further improving the shock absorber's oil circuit and hydraulic performance. The design of the first and second oil pipe interfaces as independent components and staggered in layout also allows for more safety clearance between chassis parts, preventing collisions during vehicle operation and improving vehicle safety. Furthermore, the design of the first and second oil pipe interfaces as independent components and staggered in layout makes it easier to arrange them in suspensions of different vehicle models, improving component commonality.
[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description
[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the specification, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.
[0018] Figure 1 This document shows a partial structural schematic diagram of the vibration damper in an embodiment of this application;
[0019] Figure 2 This diagram illustrates the oil circuit connection between the first oil pipe interface and the compression chamber of the shock absorber in an embodiment of this application. Detailed Implementation
[0020] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to those described herein. Rather, these embodiments are provided to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.
[0021] The accompanying drawings are merely illustrative of this application and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore, repeated descriptions of them will be omitted.
[0022] The use of terms such as "first," "second," and similar words in the specific description does not indicate any order, quantity, or importance, but is merely used to distinguish different components. The terms "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, in the description of this application, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection within two components.
[0023] It should be noted that, unless otherwise specified, the embodiments of this application and the features in different embodiments can be combined with each other.
[0024] Figure 1 The diagram illustrates a portion of the shock absorber's structure, including the oil passage connection between the second oil pipe interface and the shock absorber's recovery chamber. Figure 2 The diagram illustrates the oil circuit connection structure between the first oil pipe interface and the compression chamber of the shock absorber, combined with... Figure 1 and Figure 2 As shown, the vibration damper provided in this application embodiment includes:
[0025] The shock absorber body 100 includes a compression chamber (usually a lower chamber) and a recovery chamber (usually an upper chamber);
[0026] The first oil pipe interface 200 is installed on the shock absorber body 100 and connected to the oil passage 110 of the compression chamber;
[0027] The second oil pipe interface 300 is installed on the shock absorber body 100 and connected to the oil passage 120 of the recovery chamber;
[0028] The first oil pipe interface 200 and the second oil pipe interface 300 are each formed as independent components, and the first oil pipe interface 200 and the second oil pipe interface 300 are arranged in a staggered manner.
[0029] This application utilizes two oil pipe interfaces, each formed as an independent component and staggered in layout, to create a split interface design. This solves the spatial interference and layout difficulties caused by fixed positions (side-by-side, integrated, etc.) of the two oil pipe interfaces and their connected oil pipes. The first oil pipe interface 200 and the second oil pipe interface 300 can be arranged in suitable positions on the shock absorber body 100 as needed, simplifying assembly operations in narrow spaces, greatly improving the flexibility of interface layout and assembly convenience, and effectively avoiding interference with other components, thus optimizing the shock absorber's oil circuit and hydraulic performance. Thanks to the split and independent design of the first oil pipe interface 200 and the second oil pipe interface 300, the two oil pipes (210, 310) can each have a better layout, avoiding interference and entanglement, thereby optimizing the flow channel design and further improving the shock absorber's oil circuit and hydraulic performance. The design of the first oil pipe interface 200 and the second oil pipe interface 300 as independent components with a staggered layout also allows for more safety clearance between chassis parts, preventing collisions during vehicle operation and improving the vehicle's safety factor. Furthermore, the design of the first oil pipe interface 200 and the second oil pipe interface 300 as independent components with staggered layouts makes it easier to arrange them in the suspensions of different vehicle models, thereby improving the commonality of parts.
[0030] The term "misalignment" refers to the first oil pipe interface 200 and the second oil pipe interface 300 deviating from the traditional symmetrical or side-by-side relationship, and achieving a misaligned layout through differentiated arrangement. Specifically, in some embodiments, the first oil pipe interface 200 and the second oil pipe interface 300 are arranged asymmetrically and non-side-by-side. That is, the first oil pipe interface 200 and the second oil pipe interface 300 are not arranged symmetrically, at the same height, side-by-side, aligned, or at a fixed angle on the same side of the shock absorber body 100. Instead, based on the actual constraints and optimization goals of the chassis space, they are independently and flexibly assembled in different, most suitable spatial positions on the shock absorber body 100, breaking the inherent symmetrical / side-by-side constraints of the traditional integrated dual-interface assembly.
[0031] In some embodiments, the installation positions and / or orientations of the first oil pipe interface 200 and the second oil pipe interface 300 are staggered, thus achieving an asymmetrical layout of the first oil pipe interface 200 and the second oil pipe interface 300. Further, in some embodiments, the installation positions and orientations of the first oil pipe interface 200 and the second oil pipe interface 300 are staggered radially and / or axially and / or circumferentially. Based on the three-dimensional spatial constraints of the vehicle chassis, the optimal installation positions and orientation angles of the first oil pipe interface 200 and the second oil pipe interface 300 can be determined respectively, enabling flexible arrangement, resolving spatial conflicts and interference problems, optimizing the shock absorber piping layout, and improving assemblability and reliability.
[0032] For a specific example, see [link to example]. Figure 1 As shown, the installation positions and orientations of the first oil pipe interface 200 and the second oil pipe interface 300 are staggered, and the first oil pipe interface 200 and the second oil pipe interface 300 are axially ( Figure 1 (up and down direction), radial direction ( Figure 1 There is a certain misalignment relationship between the first oil pipe interface 200 and the second oil pipe interface 300 in the left and right directions and in the circumferential direction, so that the first oil pipe interface 200 and the second oil pipe interface 300 can respectively adapt to the three-dimensional spatial constraint conditions of the vehicle chassis to be assembled, avoid interference, and optimize the oil circuit layout of the shock absorber.
[0033] Continue to combine Figure 1 and Figure 2As shown, in some embodiments, the shock absorber further includes: an interface assembly housing 400, mounted on the shock absorber body 100, with the first oil pipe interface 200 and the second oil pipe interface 300 respectively mounted on the interface assembly housing 400. The interface assembly housing 400 facilitates the connection between the first oil pipe interface 200 and the second oil pipe interface 300 and the shock absorber body 100. The interface assembly housing 400 and the shock absorber body 100, and the first oil pipe interface 200 and the second oil pipe interface 300 and the interface assembly housing 400, can be screwed together by bolts, but are not limited thereto. Inside the interface assembly housing 400, dual independent flow channels are provided so that the first oil pipe interface 200 and the second oil pipe interface 300 can respectively connect to the oil passage 110 of the compression chamber and the oil passage 120 of the recovery chamber of the shock absorber.
[0034] In some embodiments, the interface assembly housing 400 is formed into an irregular shape to accommodate the staggered layout of the first oil pipe interface 200 and the second oil pipe interface 300. Furthermore, the interface assembly housing 400 is provided with reinforcing ribs (not shown) to enhance its structural strength and support its irregular shape.
[0035] This application embodiment also provides a shock absorber oil circuit system, which is equipped with the shock absorber described in any of the above embodiments, wherein the first oil pipe interface 200 and the second oil pipe interface 300 are respectively connected to the two ends of the hydraulic pump via corresponding hydraulic oil pipes, so that the hydraulic pump and the compression chamber and the recovery chamber of the shock absorber form a series circuit, thereby realizing active and precise control of the oil flow inside the shock absorber.
[0036] Specifically, during the compression stroke, the piston rod of the shock absorber moves downward, reducing the size of the shock absorber's compression chamber. Oil in the compression chamber flows to the hydraulic pump through the oil passage 110 of the compression chamber, the first oil pipe interface 200, and its connected oil pipe 210. The oil pumped by the hydraulic pump further flows into the shock absorber's recovery chamber through the oil pipe 310 connected to the second oil pipe interface 300, the second oil pipe interface 300, and the oil passage 120 of the recovery chamber. During the recovery stroke, the piston rod of the shock absorber moves upward, reducing the size of the shock absorber's recovery chamber. Oil in the recovery chamber flows to the hydraulic pump through the oil passage 120 of the recovery chamber, the second oil pipe interface 300, and its connected oil pipe 310. The oil pumped by the hydraulic pump further flows into the shock absorber's compression chamber through the oil pipe 210 connected to the first oil pipe interface 200, the first oil pipe interface 200, and the oil passage 110 of the compression chamber. This cycle repeats, achieving control of the piston rod's movement. By controlling the speed, flow rate, and pressure of the hydraulic pump, the flow rate, direction, and pressure of the oil can be precisely adjusted to meet the needs of vehicle vibration control and vehicle height adjustment under different driving conditions.
[0037] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of this application and should not be construed as limiting the specific implementation of this application to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of this application, and all such modifications or substitutions should be considered within the scope of protection of this application.
Claims
1. A damper characterized by, include: The damper body includes a compression chamber and a recovery chamber; The first oil pipe interface is installed on the shock absorber body and connected to the oil passage of the compression chamber; The second oil pipe interface is installed on the shock absorber body and connected to the oil passage of the recovery chamber; The first oil pipe interface and the second oil pipe interface are each formed as independent components, and the first oil pipe interface and the second oil pipe interface are arranged in a staggered manner.
2. The damper of claim 1, wherein The first oil pipe interface and the second oil pipe interface are asymmetrically and not side by side.
3. The damper of claim 1, wherein The installation positions and / or orientations of the first oil pipe interface and the second oil pipe interface are misaligned.
4. The damper of claim 3, wherein The installation positions and orientations of the first oil pipe interface and the second oil pipe interface are misaligned in the radial and / or axial and / or circumferential directions.
5. The damper of claim 1, wherein Also includes: An interface assembly housing is mounted on the shock absorber body, and the first oil pipe interface and the second oil pipe interface are respectively mounted on the interface assembly housing.
6. The damper of claim 5, wherein The interface assembly housing and the shock absorber body, as well as the first oil pipe interface and the second oil pipe interface and the interface assembly housing, are respectively connected by screws.
7. The damper of claim 5, wherein The interface assembly housing is formed into an irregular shape, and reinforcing ribs are provided on the interface assembly housing.
8. A shock absorber oil passage system characterized by comprising: The device is equipped with a shock absorber as described in any one of claims 1 to 7, wherein the first oil pipe interface and the second oil pipe interface are respectively connected to the two ends of the hydraulic pump via corresponding hydraulic oil pipes, so that the hydraulic pump, the compression chamber and the recovery chamber form a series circuit.