Energy accumulator assembly, hydraulic system, hydraulic damping system and vehicle

Abstract

This application relates to an accumulator assembly, a hydraulic system, a hydraulic damping system, and a vehicle. The accumulator assembly includes: an accumulator body having a connection port that communicates with a hydraulic chamber inside the accumulator body; when the pressure at the connection port changes, the accumulator body can draw in or discharge liquid through the connection port under pressure differential; and a connector component including a first interface, a second interface, and a third interface, all of which are interconnected, with the first and third interfaces coaxially arranged; wherein the third interface is connected to the connection port of the accumulator body, and the third interface is coaxially arranged with the connection port. The accumulator assembly of this application solves the technical problem in related technologies where large pressure loss during accumulator operation leads to poor performance.

Description

Technical Field

[0001] This application relates to the field of hydraulic system components technology, and in particular to an accumulator assembly, a hydraulic system, a hydraulic damping system, and a vehicle. Background Technology

[0002] Accumulators are an important component of hydraulic systems. They optimize system performance by storing and releasing hydraulic energy, serving functions such as energy storage, pressure regulation, and system protection. Specifically, they can convert pressure energy in the hydraulic system into a storable form using media such as compressed gas, springs, or weights, and release it rapidly when needed to compensate for pressure fluctuations in the hydraulic system and improve the smoothness of its operation.

[0003] When compensating for pressure fluctuations in a hydraulic system, the accumulator components in related technologies generate significant pressure losses, which reduces the fluidity of the liquid in the hydraulic system and affects the performance of the accumulator.

[0004] It is evident that the relevant technologies suffer from a significant pressure loss during energy storage operation, leading to poor performance. Currently, no effective solution has been proposed to address this issue.

[0005] The information disclosed in the background section is only intended to enhance the understanding of the background art described herein. Therefore, the background art may contain information that would not be considered part of the prior art by those skilled in the art. Utility Model Content

[0006] This application provides an accumulator assembly, a hydraulic system, a hydraulic damping system, and a vehicle to solve the technical problem in the related art where the accumulator experiences large pressure loss during operation, resulting in poor performance.

[0007] To achieve the above objectives, according to a first aspect of this application, this application provides an accumulator assembly comprising: an accumulator body having a connection port communicating with a hydraulic chamber inside the accumulator body; when the pressure at the connection port changes, the accumulator body can draw in or discharge liquid through the connection port under pressure differential; and a connector component including a first interface, a second interface, and a third interface, all of which are interconnected, with the first and third interfaces coaxially arranged; wherein the third interface is connected to the connection port of the accumulator body, and the third interface is coaxially arranged with the connection port.

[0008] Optionally, the connector component has a flow channel inside, the first interface and the third interface are connected through the flow channel, and the second interface extends to the side wall of the flow channel.

[0009] Optionally, the diameter of the first interface is larger than the diameter of the second interface.

[0010] Optionally, the end of the connector component away from the accumulator body has a mating surface for mating with an external structure, and the first interface is disposed on the mating surface; the connector component is also provided with multiple connecting parts, which are arranged circumferentially along the first interface, so as to connect the first interface to the hydraulic pipeline of the external structure through the multiple connecting parts.

[0011] Optionally, the accumulator assembly further includes a mounting portion for mounting the accumulator assembly in a mounting position, wherein the structure of the accumulator assembly satisfies at least one of the following: the mounting portion is disposed on the connector component; the mounting portion is located on the side of the connector component away from the second interface; there are three mounting portions, which are arranged in a triangular manner, and at least two mounting portions are located on opposite sides of the central axis of the first interface.

[0012] According to a second aspect of this application, a hydraulic system is also provided, the hydraulic system including an accumulator assembly, the accumulator assembly being the aforementioned accumulator assembly, and a first interface of the accumulator assembly being connected to the main pipeline of the hydraulic system.

[0013] According to a third aspect of this application, a hydraulic vibration damping system is also provided, comprising: an accumulator assembly, the accumulator assembly being the aforementioned accumulator assembly; and a vibration damper having a piston and two chambers, wherein hydraulic oil flows between the two chambers when the piston moves; wherein a first interface of the accumulator assembly is in communication with one chamber of the vibration damper.

[0014] Optionally, the hydraulic vibration damping system includes: a first valve structure disposed at the inlet of the first interface, so as to control the connection or disconnection between the first interface and the chamber.

[0015] Optionally, the hydraulic damping system includes: an oil supply unit; a second valve structure, one end of which is connected to the oil supply unit, and the other end of which is connected to the second interface of the accumulator assembly, so as to control the connection or disconnection between the second interface and the oil supply unit through the second valve structure; wherein, when the second valve structure connects the second interface and the oil supply unit, the oil supply unit can supply hydraulic oil to the accumulator assembly through the second interface.

[0016] According to a fourth aspect of this application, a vehicle is also provided, the vehicle including the aforementioned hydraulic damping system.

[0017] The accumulator assembly of this application embodiment includes: an accumulator body having a connection port communicating with a hydraulic chamber inside the accumulator body; when the pressure at the connection port changes, the accumulator body can draw in or discharge liquid through the connection port under pressure differential; and a connector component including a first interface, a second interface, and a third interface, all of which are interconnected, with the first and third interfaces coaxially arranged; wherein the third interface is connected to the connection port of the accumulator body, and the third interface is coaxially arranged with the connection port. The accumulator assembly with the above-described structure, in which the connector component is designed with a first interface, a second interface, and a third interface, uses the first interface as the main interface and the second interface as the secondary interface, through which liquid can be added to or discharged. The first and third interfaces, serving as the main interfaces, are coaxially arranged. The third interface is further coaxially arranged with the connection port of the accumulator body. In this way, the first interface, the third interface, and the connection port of the accumulator body are all coaxially arranged, which prevents excessive local pressure loss due to turning impacts or other reasons when the liquid flows into or out of the hydraulic chamber of the accumulator body through the first interface. This makes the process of liquid flowing into or out of the hydraulic chamber of the accumulator body smoother, which is conducive to improving the compensation effect of the accumulator on the pressure fluctuation of the hydraulic system it is in. This solves the technical problem in related technologies where the pressure loss during the operation of the accumulator is large, resulting in poor performance.

[0018] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0020] Figure 1 This is a schematic diagram of the energy storage assembly according to an embodiment of this application from a first-view perspective; Figure 2 This is a schematic diagram of the energy storage assembly according to an embodiment of this application from a second perspective; Figure 3 This is a schematic diagram of a hydraulic vibration damping system according to an embodiment of this application.

[0021] Explanation of reference numerals in the attached figures: 1. Accumulator body; 2. Connector component; 21. First interface; 22. Second interface; 23. Mating surface; 24. Connecting part; 25. Mounting part; 10. Energy accumulator assembly; 20. Shock absorber; 201. Piston; 202. Chamber; 30. Integrated control module; 301. First valve structure; 40. Oil supply unit. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0023] The structure of this application will be described in detail below with reference to the accompanying drawings.

[0024] See Figures 1 to 3 As shown, according to embodiments of this application, an energy storage assembly, a hydraulic system, a hydraulic damping system, and a vehicle are provided.

[0025] The accumulator assembly of this application embodiment includes: an accumulator body 1, which has a connection port that communicates with a hydraulic chamber inside the accumulator body 1. When the pressure at the connection port changes, the accumulator body 1 can draw in or discharge liquid through the connection port under the action of pressure difference; and a connector component 2, which includes a first interface 21, a second interface 22, and a third interface. The first interface 21, the second interface 22, and the third interface are all interconnected, and the first interface 21 and the third interface are coaxially arranged. The third interface is connected to the connection port of the accumulator body 1, and the third interface is coaxially arranged with the connection port.

[0026] The accumulator assembly with the above-described structure has a connector 2 with a first interface 21, a second interface 22, and a third interface. In use, the first interface 21 serves as the main interface, and the second interface 22 serves as the secondary interface, through which liquid can be added or discharged. The first interface 21 and the third interface, serving as the main interfaces, are coaxially arranged. Furthermore, the third interface is also coaxially arranged with the connection port of the accumulator body 1. This coaxial arrangement of the first interface 21, the third interface, and the connection port of the accumulator body 1 prevents excessive local pressure loss due to turning or impact when liquid flows into or out of the hydraulic chamber of the accumulator body 1 through the first interface 21. This ensures smoother flow of liquid into or out of the hydraulic chamber of the accumulator body 1, improving the accumulator's compensation effect for pressure fluctuations in its hydraulic system. This solves the technical problem in related technologies where large pressure losses during accumulator operation lead to poor performance.

[0027] In this embodiment, the connector component 2 has a flow channel inside, through which the first interface 21 and the third interface are connected, and the second interface 22 extends to the side wall of the flow channel. In this way, the second interface 22 does not affect the coaxial arrangement of the first interface 21 and the third interface, and can be connected to both through the second interface 22. In actual use, liquid can be added or discharged through the second interface 22, which is beneficial to expand the function of the accumulator component and enrich its application scenarios.

[0028] In some optional embodiments, the diameter of the first interface 21 is larger than the diameter of the second interface 22. Because the diameter of the first interface 21 is larger than that of the second interface 22, under the same pressure differential, the first interface 21 can achieve a larger liquid flow rate. When used as the main interface of the accumulator assembly, it can supply more liquid to flow through in a short time, thereby achieving a greater compensation effect. This is beneficial for improving the response speed of the accumulator assembly and its ability to compensate for pressure fluctuations in the hydraulic system.

[0029] like Figure 1 and Figure 2As shown, the end of the connector component 2 furthest from the accumulator body 1 has a mating surface 23 for mating with an external structure, and a first interface 21 is disposed on the mating surface 23. The connector component 2 also has multiple connecting parts 24 arranged circumferentially along the first interface 21 to connect the first interface 21 to the hydraulic lines of the external structure. When in use, the accumulator assembly with this structural design aligns the mating surface 23 with the external mounting structure, thereby connecting the first interface 21 to the interface on the mounting structure. The connector component 2 is then connected to the external structure via the multiple connecting parts 24 on the mating surface 23, providing a reliable axial connection and ensuring effective connection between the accumulator assembly and the external structure. In practical implementation, the connecting parts 24 can be flexibly selected according to actual needs; they can be any structure capable of achieving the connection function. For example, the connecting part 24 can be a threaded hole, and the connector component 2 can be connected to the external structure via bolts installed in the threaded hole.

[0030] In addition, in this embodiment, the accumulator assembly further includes a mounting portion 25, which is used to install the accumulator assembly at the installation position. The structure of the accumulator assembly satisfies the following condition: the mounting portion 25 is disposed on the connector component 2, so that the connector component 2 can be connected to the installation position during use without operating the accumulator body 1, which facilitates the replacement or maintenance of the accumulator body 1. The mounting portion 25 is located on the side of the connector component 2 away from the second interface 22. This effectively separates the mounting portion 25 from the second interface 22, avoiding interference of the mounting portion 25 with the second interface 22 or its connection structure, and also preventing interference from the second interface 22 with the mounting portion 25, thereby ensuring smoother installation of the accumulator assembly. In this embodiment, there are three mounting portions 25, arranged in a triangular pattern, with at least two mounting portions 25 located on opposite sides of the central axis of the first interface 21. By providing three mounting portions 25, a stable fixing effect can be achieved for the accumulator assembly. If the number of mounting portions 25 is too small, the accumulator assembly may rotate or sway under external forces after installation, resulting in poor installation stability. If the number of mounting portions 25 is too large, it may lead to over-positioning of the accumulator assembly. If the positional relationship between these mounting portions 25 is inaccurate, it may also cause internal stress on the accumulator assembly, which may affect the connection and / or sealing effect of its components. In this embodiment, three mounting portions 25 are designed and arranged in a triangular manner, with at least two mounting portions 25 located on opposite sides of the central axis of the first interface 21, which can effectively avoid the above two problems. In actual implementation, the mounting portions 25 can be flexibly selected according to actual needs. They can be any structure that can achieve the connection function. For example, the mounting portion 25 is a threaded hole, and the connector component 2 can be fixed in the installation position by bolts installed in the threaded hole.

[0031] In addition, such as Figure 3 As shown, an embodiment of this application also provides a hydraulic system, which includes an accumulator assembly, the accumulator assembly described above, and a first interface 21 of the accumulator assembly connected to the main pipeline of the hydraulic system. Because this hydraulic system uses the aforementioned accumulator assembly, when the liquid in the main pipeline of the hydraulic system flows into or out of the hydraulic chamber of the accumulator body 1 through the first interface 21, it will not experience excessive local pressure loss due to turning impacts or other reasons. This makes the process of the liquid flowing into or out of the hydraulic chamber of the accumulator body 1 smoother, which is beneficial to improving the accumulator's compensation effect for hydraulic system pressure fluctuations and solves the technical problem of poor compensation effect for liquid pressure fluctuations in related technologies.

[0032] Furthermore, embodiments of this application also provide a hydraulic vibration damping system, comprising: an accumulator assembly 10, the accumulator assembly 10 being the aforementioned accumulator assembly; and a vibration damper 20, the vibration damper 20 having a piston 201 and two chambers 202, wherein hydraulic oil flows between the two chambers 202 when the piston 201 moves; wherein a first interface 21 of the accumulator assembly 10 is connected to one chamber 202 of the vibration damper 20. In this embodiment, the above-mentioned accumulator assembly is applied to a hydraulic vibration damping system. The first interface 21 of the accumulator assembly 10 can be connected to one chamber 202 of the vibration damper 20. In this way, when the vibration damper 20 is in action, its piston 201 moves, one of the two chambers 202 is compressed and the other expands. During this process, hydraulic oil will flow between the two chambers 202. Since the accumulator assembly 10 is connected to one chamber, the hydraulic oil stored in the accumulator assembly 10 will flow in or out with pressure fluctuations. This is beneficial to reduce the stiffness of the vibration damper 20 and improve the vibration damping effect of the vibration damping system.

[0033] In some optional embodiments, the hydraulic vibration damping system includes a first valve structure 301, which is disposed at the inlet of the first interface 21 to control the connection or disconnection between the first interface 21 and the chamber 202. After the first valve structure 301 is set, the connection or disconnection between the first interface 21 and the chamber 202 can be controlled by opening and closing the first valve structure 301, thereby selecting whether to connect the accumulator assembly 10 to the vibration damper 20. When the first valve structure 301 is open, the accumulator assembly 10 is connected to the vibration damper 20, thereby reducing the stiffness of the vibration damper 20. When the first valve structure 301 is closed, the accumulator assembly 10 is not connected to the vibration damper 20, thereby increasing the stiffness of the vibration damper 20. This achieves the purpose of adjusting the stiffness of the vibration damper according to actual needs.

[0034] In this embodiment, the hydraulic damping system includes: an oil supply unit 40; and a second valve structure (omitted in the figure), one end of which is connected to the oil supply unit 40, and the other end of which is connected to the second interface 22 of the accumulator assembly 10, so as to control the connection or disconnection between the second interface 22 and the oil supply unit 40 through the second valve structure; wherein, when the second valve structure connects the second interface 22 and the oil supply unit 40, the oil supply unit 40 can supply hydraulic oil to the accumulator assembly 10 through the second interface 22. When the second valve structure is open, the oil supply unit 40 can supply hydraulic oil to the accumulator assembly 10 through the second interface 22. When the first valve structure 301 is not provided or the first valve structure 301 is open, the hydraulic oil supplied by the oil supply unit 40 will eventually flow to one chamber of the shock absorber 20, thereby adjusting the position of the piston 201 of the shock absorber 20. For example, when the shock absorber is used in a vehicle, the position of the piston 201 is adjusted by the hydraulic oil supplied by the oil supply unit 40. The final effect on the vehicle is that the height of the vehicle changes, realizing the raising or lowering of the vehicle body, thus enriching the function of the hydraulic shock absorption system.

[0035] like Figure 3 As shown, in some optional embodiments, the hydraulic damping system includes an integrated control module 30. The integrated control module 30 is connected to the pipeline between the shock absorber 20 and the accumulator assembly 10. The first valve structure 301 is part of the integrated control module 30. Specifically, the integrated control module 30 may include structures such as a pressure-reducing accumulator, a damping accumulator, and a damping regulating valve group. The pressure-reducing accumulator can store low-pressure oil and buffer pressure fluctuations. The damping regulating valve group controls the rate of flow change by adjusting the oil damping (such as the throttling area). The damping accumulator can release or absorb oil instantaneously during pressure fluctuations, avoiding sudden increases or decreases in oil circuit pressure and reducing residual vibrations of the vehicle body. The shock absorber 20 also includes a damping regulating valve group to adjust the shock absorber damping. Specifically, the damping regulating valve group includes a one-way valve and a damping regulating solenoid valve arranged in parallel. The overall damping of the damping regulating valve group can be adjusted by the damping regulating solenoid valve. In some preferred embodiments, the oil supply unit 40 can also be connected to another chamber 202 of the shock absorber 20 (i.e., one chamber 202 of the shock absorber 20 can be connected to the first interface 21 of the aforementioned energy storage assembly 10, and the other chamber 202 of the shock absorber 20 can be connected to the oil supply unit 40). This allows the oil supply unit 40 to directly supply oil to the other chamber 202, thereby further expanding the functionality of the hydraulic damping system and improving its flexibility of use. Preferably, a third valve structure is provided between the oil supply unit 40 and the other chamber 202, allowing selection of whether to connect the oil supply unit 40 to the other chamber 202.

[0036] Finally, embodiments of this application also provide a vehicle that includes the aforementioned hydraulic damping system.

[0037] Since the vehicle described above includes all the technical features of the hydraulic damping system in the above embodiments, it also has all the technical effects corresponding to the hydraulic damping system. Since the technical effects of the hydraulic damping system have been described in detail above, they will not be repeated here.

[0038] Based on the above embodiments, it can be seen that the energy storage assembly of this application embodiment has at least the following technical effects: The accumulator assembly of this application embodiment includes: an accumulator body 1, which has a connection port communicating with a hydraulic chamber inside the accumulator body 1. When the pressure at the connection port changes, the accumulator body 1 can draw in or discharge liquid through the connection port under the action of pressure difference; and a connector component 2, which includes a first interface 21, a second interface 22, and a third interface. The first interface 21, the second interface 22, and the third interface are all interconnected, and the first interface 21 and the third interface are coaxially arranged. The third interface is connected to the connection port of the accumulator body 1, and the third interface is coaxially arranged with the connection port. In the accumulator assembly with the above-described structure, the connector component 2 is designed with a first interface 21, a second interface 22, and a third interface. In use, the first interface 21 is used as the main interface, and the second interface 22 is used as the secondary interface, through which liquid can be added or discharged. The first interface 21 and the third interface, which serve as the main interfaces, are coaxially arranged. The third interface is further coaxially arranged with the connection port of the accumulator body 1. In this way, the first interface 21, the third interface, and the connection port of the accumulator body 1 are all coaxially arranged. This prevents excessive local pressure loss due to turning impacts or other reasons when the liquid flows into or out of the hydraulic chamber of the accumulator body 1 through the first interface 21. As a result, the process of liquid flowing into or out of the hydraulic chamber of the accumulator body 1 is smoother, which helps to improve the compensation effect of the accumulator on the pressure fluctuation of the hydraulic system in which it is located. This solves the technical problem in related technologies where the pressure loss of the accumulator during operation leads to poor performance.

[0039] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0040] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0041] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0042] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. An energy storage assembly, characterized in that, include: The accumulator body (1) has a connection port, which is connected to the hydraulic chamber inside the accumulator body (1). When the pressure at the connection port changes, the accumulator body (1) can draw in or discharge liquid through the connection port under the action of pressure difference. The connector component (2) includes a first interface (21), a second interface (22) and a third interface. The first interface (21), the second interface (22) and the third interface are all interconnected. The first interface (21) and the third interface are coaxially arranged. The third interface is connected to the connection port of the energy storage body (1), and the third interface and the connection port are coaxially arranged.

2. The energy storage assembly according to claim 1, characterized in that, The connector component (2) has a flow channel inside, the first interface (21) and the third interface are connected through the flow channel, and the second interface (22) extends to the side wall of the flow channel.

3. The energy storage assembly according to claim 1, characterized in that, The diameter of the first interface (21) is greater than the diameter of the second interface (22).

4. The energy storage assembly according to any one of claims 1 to 3, characterized in that, The connector component (2) has a mating surface (23) for mating with an external structure at one end away from the accumulator body (1), and the first interface (21) is disposed on the mating surface (23); the connector component (2) is also provided with a plurality of connecting parts (24), and the plurality of connecting parts (24) are disposed circumferentially along the first interface (21) so as to connect the first interface (21) to the hydraulic pipeline of the external structure through the plurality of connecting parts (24).

5. The energy storage assembly according to any one of claims 1 to 3, characterized in that, The energy storage assembly further includes a mounting portion (25) for mounting the energy storage assembly in a mounting position, wherein the structure of the energy storage assembly satisfies at least one of the following: The mounting part (25) is disposed on the connector component (2); The mounting part (25) is located on the side of the connector component (2) away from the second interface (22); There are three mounting parts (25), which are arranged in a triangular manner, with at least two of the mounting parts (25) located on opposite sides of the central axis of the first interface (21).

6. A hydraulic system, characterized in that, The hydraulic system includes an accumulator assembly, which is the accumulator assembly according to any one of claims 1 to 5, wherein the first interface (21) of the accumulator assembly is connected to the main pipeline of the hydraulic system.

7. A hydraulic vibration damping system, characterized in that, The hydraulic vibration damping system includes: Energy storage assembly (10), wherein the energy storage assembly (10) is the energy storage assembly according to any one of claims 1 to 5; A shock absorber (20) having a piston (201) and two chambers (202) whereby hydraulic oil flows between the two chambers (202) when the piston (201) moves. The first interface (21) of the accumulator assembly (10) may be connected to one of the chambers (202) of the damper (20).

8. The hydraulic vibration damping system according to claim 7, characterized in that, The hydraulic vibration damping system includes: A first valve structure (301) is disposed at the entrance of the first interface (21) to control the connection or disconnection between the first interface (21) and the chamber (202).

9. The hydraulic vibration damping system according to claim 7, characterized in that, The hydraulic vibration damping system includes: Oil supply unit (40); The second valve structure has one end connected to the oil supply unit (40) and the other end connected to the second interface (22) of the accumulator assembly (10) so as to control the connection or disconnection between the second interface (22) and the oil supply unit (40) through the second valve structure. When the second valve structure connects the second interface (22) to the oil supply unit (40), the oil supply unit (40) can supply hydraulic oil to the accumulator assembly (10) through the second interface (22).

10. A vehicle, characterized in that, The vehicle includes the hydraulic damping system as described in any one of claims 7 to 9.

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