Suspension assembly and vehicle

By utilizing the relative movement of the oil pump assembly and the lifting components in the mechanical suspension assembly, the height of the suspension assembly can be automatically adjusted, which solves the problems of complex adjustment, high cost and limited range of existing suspension assemblies, and provides stability and passability under different road conditions.

CN117656740BActive Publication Date: 2026-08-04BYD CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BYD CO LTD
Filing Date
2023-07-07
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing suspension height adjustment methods are complex, costly, energy-intensive, and affect vehicle range. Active adjustment methods require a power source and software control, while passive adjustment methods are complex and labor-intensive to operate.

Method used

The suspension assembly, which adopts a mechanical structure, automatically adjusts the height of the suspension assembly by pumping in and out oil through the relative movement of the oil pumping component and the lifting component. It includes the oil pumping component, the lifting component, the support component, and the control component, so as to realize the height adjustment of the suspension assembly under different road conditions.

Benefits of technology

It is easy to operate, highly reliable, and low in cost. It does not affect the vehicle's range and can maintain a low height under normal road conditions to improve stability and economy, while raising the height under off-road conditions to improve passability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a kind of suspension assembly and vehicle, suspension assembly includes: suspension component;Lifting component, lifting component includes: support and lifting piece, oil liquid is arranged in lifting piece, lifting piece is connected to vehicle body, and lifting piece is movably arranged in support;Pump oil component, pump oil component is set on suspension component, and pump oil component is communicated with lifting piece, pump oil component moves relatively with the vibration of suspension component, to pump into the oil liquid in lifting piece into pump oil component, and the oil liquid that is pumped into pump oil component is selectively introduced into support, to promote lifting piece to move upward.User can control the lifting of lifting piece, so that the height of suspension component can be adjusted, and operation is completed by mechanical structure, simple and convenient to operate, does not involve software control, high reliability, low cost, while maintenance is relatively convenient, in addition, vehicle does not need to power supply, does not affect the endurance of whole vehicle.
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Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to a suspension assembly and a vehicle. Background Technology

[0002] In related technologies, suspension component height adjustment methods are mainly active and passive. Active adjustment requires a power source, wiring harness / pipeline, sensors, controllers, etc. Different operating conditions are pre-matched through software. During vehicle use, the vehicle controller automatically adjusts the overall vehicle height according to the actual operating conditions, or the driver controls the overall vehicle height from inside the vehicle via a knob. This system has a complex structure, high cost, high vehicle energy consumption, and affects the vehicle's range. Passive adjustment mainly uses threaded or shim structures for adjustment. It requires the driver to manually pre-adjust according to the vehicle load or operating conditions before driving, and requires tire removal and installation, etc., making the operation complex and laborious. Summary of the Invention

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a suspension assembly that can adjust the height of the suspension components, is simple and convenient to operate, does not involve software control, has high reliability, low cost, and is also relatively easy to maintain. In addition, it does not require power supply from the vehicle and does not affect the vehicle's range.

[0004] The present invention further proposes a vehicle.

[0005] According to the present invention, a suspension assembly includes: a suspension assembly; a lifting assembly, the lifting assembly including: a support member and a lifting member, the lifting member containing oil, the lifting member being connected to the vehicle body and movably disposed on the support member; and an oil pumping assembly disposed on the suspension assembly and communicating with the lifting member, the oil pumping assembly moving relative to the suspension assembly with vibration to pump the oil in the lifting member into the oil pumping assembly, and the oil pumped into the oil pumping assembly selectively flowing into the support member to push the lifting member upward.

[0006] According to the suspension assembly of the present invention, the user can control the lifting of the lifting component, thereby adjusting the height of the suspension assembly. Under normal road conditions, the suspension assembly is lower, giving the vehicle better high-speed stability and power economy. Under off-road conditions, the height of the raised suspension assembly gives the vehicle better passability. Moreover, the operation is completed through a mechanical structure, which is simple and convenient to operate, does not involve software control, has high reliability, low cost, and is also relatively easy to maintain. In addition, it does not require the vehicle to supply power, so it does not affect the vehicle's range.

[0007] In some examples of the present invention, the oil pump assembly includes: a housing and an oil pumping element, wherein an oil pumping chamber is formed in the housing, the oil pumping chamber is connected to the lifting element, the oil pumping element is movably disposed in the oil pumping chamber, and the oil pumping element is connected to the suspension assembly.

[0008] In some examples of the present invention, the housing is provided with a liquid inlet and a first liquid outlet, the pump oil component is provided with a second liquid outlet, the first liquid outlet is located above the second liquid outlet, the liquid inlet, the first liquid outlet and the second liquid outlet are respectively connected to the pump oil chamber, and the liquid inlet is connected to the lifting component, the first liquid outlet is selectively connected to the support component, and the second liquid outlet is connected to the liquid inlet.

[0009] In some examples of the present invention, the support member is provided with a first through hole, the lifting member is provided with a second through hole, the first through hole is selectively connected to the first liquid outlet and the second through hole, and the second through hole is also connected to the liquid inlet.

[0010] In some examples of the present invention, a first cavity is formed in the support member, the first cavity is connected to the first through hole, a second cavity is formed in the lifting member, the second cavity is connected to the second through hole, and a connecting channel is provided on the support member, the connecting channel is connected to the second cavity, and a third through hole is provided on the connecting channel, the third through hole is connected to the first cavity.

[0011] In some examples of the present invention, the suspension assembly further includes a control component comprising a first valve port, a second valve port, and a third valve port, wherein the first valve port is connected to a first through hole, the second valve port is connected to a second through hole, the third valve port is connected to a first liquid outlet, and the first valve port is selectively connected to the second valve port and the third valve port.

[0012] In some examples of the present invention, the lifting assembly further includes a limiting member disposed within the support member, so as to limit the lifting member after it descends relative to the support member.

[0013] In some examples of the present invention, the suspension assembly further includes: a shock absorber connected to the wheel, and the lower end of the support member connected to the shock absorber.

[0014] In some examples of the present invention, the suspension assembly further includes a universal joint, the suspension assembly includes a connecting arm, the universal joint is connected to the connecting arm, and the oil pump assembly is connected to the universal joint.

[0015] The vehicle according to the present invention includes: the suspension assembly described above.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a schematic diagram of a first type of connection of a suspension assembly according to an embodiment of the present invention;

[0019] Figure 2 This is a second connection diagram of the suspension assembly according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the installation structure of the lifting assembly;

[0021] Figure 4 This is a schematic diagram of the installation structure of the oil pump assembly.

[0022] Figure label:

[0023] 1. Suspension assembly;

[0024] 10. Suspension assembly; 11. Connecting arm; 20. Lifting assembly; 21. Support member; 210. First through hole; 211. First cavity; 22. Lifting member; 220. Second through hole; 221. Second cavity; 23. Connecting channel; 230. Third through hole; 24. Limiting member; 30. Oil pump assembly; 31. Housing; 310. Liquid inlet; 311. First liquid outlet; 32. Oil pump component; 320. Second liquid outlet; 33. Oil pump chamber; 40. Control assembly; 41. First valve port; 42. Second valve port; 43. Third valve port; 50. Vibration damping member; 60. Universal connector. Detailed Implementation

[0025] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0026] The following is for reference. Figures 1-4 A suspension assembly 1 according to an embodiment of the present invention is described.

[0027] like Figure 1 and Figure 2As shown, the suspension assembly 1 according to an embodiment of the present invention includes: a suspension component 10, a lifting component 20, and a pumping component 30. The suspension component 10 is the main body of the suspension assembly 1 and can transmit force between the vehicle body and the wheels. The lifting component 20 can perform a lifting operation to raise the height of the suspension component 10, thereby making the suspension component 10 suitable for off-road conditions. The pumping component 30 can pump oil.

[0028] like Figures 1-3 As shown, the lifting assembly 20 includes a support member 21 and a lifting member 22. The lifting member 22 contains hydraulic fluid and is connected to the vehicle body. The lifting member 22 is vertically movable and positioned on the support member 21. The support member 21 is generally fixed and provides support, while the lifting member 22 provides lifting and lowering. The hydraulic fluid within the lifting member 22 can be pumped out by the hydraulic pump assembly 30. Since the lifting member 22 is connected to the vehicle body and is vertically movable on the support member 21, it can be understood that when the lifting member 22 rises relative to the support member 21, it can lift the vehicle body along with it. The suspension assembly 10 is mounted on the vehicle body, allowing it to rise with the vehicle body, thereby increasing the height of the suspension assembly 10 and making it suitable for off-road conditions.

[0029] like Figure 1 , Figure 2 and Figure 4 As shown, the oil pump assembly 30 is disposed on the suspension assembly 10 and is connected to the lifting member 22. The oil pump assembly 30 moves relative to the suspension assembly 10 with the vibration, so as to pump the oil in the lifting member 22 into the oil pump assembly 30. The oil pumped into the oil pump assembly 30 is selectively introduced into the support member 21 to push the lifting member 22 to move upward.

[0030] Specifically, when the vehicle is in motion, the suspension assembly 10 vibrates up and down. Since the oil pump assembly 30 is mounted on the suspension assembly 10, it also moves up and down accordingly. When the oil pump assembly 30 moves downward, it draws oil inward; when it moves upward, it pumps oil outward. The oil pump assembly 30 is connected to the lifting member 22. When the oil pump assembly 30 moves downward, it can draw oil from the lifting member 22 into itself. The oil pumped into the oil pump assembly 30 selectively flows into the support member 21. In other words, when the vehicle is traveling on normal highway conditions, it is not necessary to raise the suspension assembly 10. When the oil pump assembly 30 moves upward, the oil inside the oil pump assembly 30 will not be pumped into the support member 21. The lifting member 22 remains on the support member 21 due to its own gravity, keeping its position unchanged. This allows the suspension assembly 10 to remain stationary. When the vehicle is traveling on an off-road surface, the suspension assembly 10 needs to be raised. When the oil pump assembly 30 moves upward, the oil inside the oil pump assembly 30 is pumped into the support member 21. As the oil in the lifting member 22 gradually decreases while the oil in the support member 21 gradually increases, the oil in the support member 21 will gradually push the lifting member 22 upward, thereby driving the suspension assembly 10 upward and raising the height of the suspension assembly 10.

[0031] Therefore, the user can control the lifting of the lifting component 22 to adjust the height of the suspension assembly 10. Under normal road conditions, the suspension assembly 10 is lower, giving the vehicle better high-speed stability and power economy. Under off-road conditions, the height of the raised suspension assembly 10 gives the vehicle better passability. Moreover, the operation is completed through a mechanical structure, which is simple and convenient, does not involve software control, has high reliability, low cost, and is also relatively easy to maintain. In addition, it does not require the vehicle to supply power, so it does not affect the vehicle's range.

[0032] Among them, such as Figure 1 , Figure 2 and Figure 4As shown, the oil pump assembly 30 includes a housing 31 and an oil pump component 32. An oil pump chamber 33 is formed within the housing 31 and is connected to the lifting component 22. The oil pump component 32 is movably disposed within the oil pump chamber 33 and is connected to the suspension assembly 10. The housing 31 is generally fixed to the vehicle body or frame and is a stationary structural component, while the oil pump component 32 is movable. An oil pump chamber 33 is formed within the housing 31, allowing oil to enter. An oil pump component 32 is connected to the suspension assembly 10 and is movably disposed within the oil pump chamber 33. Specifically, when the oil pump component 32 moves downwards, suction is generated within the oil pump chamber 33. The oil pump chamber 33 is connected to the lifting component 22, allowing oil from the lifting component 22 to be drawn into the oil pump chamber 33. When the vehicle is traveling on normal highway conditions, there is no need to raise the suspension assembly 10. In this case, when the oil pump component 32 moves upwards, pressure is generated within the oil pump chamber 33, causing the oil in the oil pump chamber 33 to be pumped out, but the oil will not be pumped into the suspension assembly 10. In the support member 21, the lifting member 22 remains stationary due to its own weight, thus keeping the suspension assembly 10 stationary. When the vehicle is traveling on an off-road surface, the suspension assembly 10 needs to be raised. When the oil pump 32 moves upward, pressure is generated in the oil pump chamber 33. This pressure causes the oil in the oil pump chamber 33 to be pumped out, and the oil can be pumped into the support member 21. As the oil in the lifting member 22 gradually decreases while the oil in the support member 21 gradually increases, the oil in the support member 21 will gradually push the lifting member 22 upward, thereby driving the suspension assembly 10 upward and increasing the height of the suspension assembly 10.

[0033] Specifically, such as Figure 1 and Figure 2 As shown, the housing 31 is provided with a liquid inlet 310 and a first liquid outlet 311, and the pump oil component 32 is provided with a second liquid outlet 320. The first liquid outlet 311 is located above the second liquid outlet 320. The liquid inlet 310, the first liquid outlet 311 and the second liquid outlet 320 are respectively connected to the pump oil chamber 33. Moreover, the liquid inlet 310 is connected to the lifting component 22. The first liquid outlet 311 is selectively connected to the support component 21, and the second liquid outlet 320 is connected to the liquid inlet 310.

[0034] In other words, when the pumping component 32 moves downward, suction is generated in the pumping chamber 33. The inlet 310 is connected to the lifting component 22, so the oil in the lifting component 22 can be sucked into the pumping chamber 33 through the inlet 310. When the vehicle is traveling on a normal highway, there is no need to raise the suspension assembly 10. When the pumping component 32 moves upward, pressure is generated in the pumping chamber 33. The pressure causes the oil in the pumping chamber 33 to be pumped out. At this time, the first outlet 311 is not connected to the support component 21, and the oil will be discharged through the second outlet 320 and enter the inlet 310, and then re-enter the pumping chamber 33, forming a pumping oil circulation. The lifting component 22 remains in place due to its own gravity. The suspension assembly 10 is placed on the support member 21 and kept in a fixed position. When the vehicle is traveling on off-road terrain, the suspension assembly 10 needs to be raised. When the pumping member 32 moves upward, pressure is generated in the pumping chamber 33, causing the oil in the pumping chamber 33 to be pumped out. At this time, the first outlet 311 connects to the support member 21, and the oil is discharged through the first outlet 311 and enters the support member 21. As the oil in the lifting member 22 gradually decreases while the oil in the support member 21 gradually increases, the oil in the support member 21 gradually pushes the lifting member 22 upward, thereby driving the suspension assembly 10 upward and raising its height. It should be noted that the first outlet 311 is located above the second outlet 320; the second outlet 320 will only open when the first outlet 311 is closed to the oil passage.

[0035] In addition, such as Figure 1 and Figure 2 As shown, the support member 21 is provided with a first through hole 210, and the lifting member 22 is provided with a second through hole 220. The first through hole 210 is selectively connected to the first liquid outlet 311 and the second through hole 220, and the second through hole 220 is also connected to the liquid inlet 310. The first through hole 210 on the support member 21 allows oil to enter and exit the support member 21 through the first through hole 210. Similarly, the second through hole 220 on the lifting member 22 allows oil to enter and exit the lifting member 22 through the second through hole 220.

[0036] The second through hole 220 is connected to the liquid inlet 310, so that the oil can be discharged through the second through hole 220 and can be introduced into the liquid inlet 310, thereby entering the pump oil chamber 33. The first through hole 210 is selectively connected to the first liquid outlet 311 and the second through hole 220. When the first through hole 210 is connected to the first liquid outlet 311, the oil in the pump oil chamber 33 can be introduced into the support member 21 through the first liquid outlet 311 and the first through hole 210, thereby raising the height of the suspension assembly 10 and enabling the vehicle to operate under off-road conditions. When the first through hole 210 is connected to the second through hole 220, the support member 21 and the lifting member 22 are kept in balance when maintaining the road condition. When switching from off-road conditions to road conditions, since there is more oil in the support member 21, the oil in the support member 21 can be discharged through the first through hole 210 and then flow back to the lifting member 22 through the second through hole 220, thereby lowering the height of the lifting member 22 and thus lowering the height of the suspension assembly 10, making the vehicle suitable for road conditions.

[0037] According to an optional embodiment of the present invention, such as Figure 1 and Figure 2 As shown, a first cavity 211 is formed inside the support member 21, and the first cavity 211 is connected to the first through hole 210. A second cavity 221 is formed inside the lifting member 22, and the second cavity 221 is connected to the second through hole 220. Moreover, a connecting channel 23 is provided on the support member 21, and the connecting channel 23 is connected to the second cavity 221. Furthermore, a third through hole 230 is opened on the connecting channel 23, and the third through hole 230 is connected to the first cavity 211.

[0038] A first cavity 211 is formed in the support member 21, and a second cavity 221 is formed in the lifting member 22. Both the first cavity 211 and the second cavity 221 can store oil. The first cavity 211 is connected to the first through hole 210, so that the oil can enter and exit the first cavity 211 through the first through hole 210. Similarly, the second cavity 221 is connected to the second through hole 220, so that the oil can enter and exit the second cavity 221 through the second through hole 220. The support member 21 is provided with a connecting channel 23, which serves as an intermediate connection. The connecting channel 23 is connected to the second cavity 221, and a third through hole 230 is provided on the connecting channel 23, which is connected to the first cavity 211. Thus, when the lifting member 22 rises to a certain height, the oil in the first cavity 211 can enter the connecting channel 23 through the third through hole 230, and then enter the second cavity 221. At this time, the oil added in the support member 21 will enter the second cavity 221, thereby preventing the lifting member 22 from rising further and maintaining its height. This allows the suspension assembly 10 to remain stable after rising to a certain height.

[0039] It should be noted that before the lifting component 22 rises to a certain height, it will block the third through hole 230 to prevent the oil in the first cavity 211 from flowing into the second cavity 221 through the connecting channel 23. After the lifting component 22 rises to a certain height, it will open the third through hole 230, allowing the oil in the first cavity 211 to enter the connecting channel 23 through the third through hole 230, and then into the second cavity 221. Furthermore, when the oil is pumped into the first cavity 211 by the oil pump assembly 30, a certain pressure is generated. When the oil enters the connecting channel 23, this pressure can push the oil upwards, thereby allowing the oil to flow into the second cavity 221.

[0040] Furthermore, such as Figure 1 and Figure 2 As shown, the suspension assembly 1 also includes a control component 40, which includes a first valve port 41, a second valve port 42, and a third valve port 43. The first valve port 41 is connected to a first through hole 210, the second valve port 42 is connected to a second through hole 220, and the third valve port 43 is connected to a first liquid outlet 311. The first valve port 41 is selectively connected to the second valve port 42 and the third valve port 43.

[0041] The control component 40 can play a control role. When the vehicle is traveling on a normal highway, it can switch the first valve port 41 to connect the first valve port 41 with the second valve port 42. Since the first valve port 41 is connected to the first through hole 210 and the second valve port 42 is connected to the second through hole 220, the first through hole 210 and the second through hole 220 are connected, maintaining the balance between the support member 21 and the lifting member 22. The height of the suspension assembly 10 remains unchanged, and the vehicle is suitable for highway conditions. When the vehicle is traveling on a normal highway, the control component 40 can switch the first valve port 41 to connect the second through hole 220 with the second through hole 220. This maintains the balance between the support member 21 and the lifting member 22, and the height of the suspension assembly 10 remains unchanged. In off-road conditions, the first valve port 41 can be switched to connect the first valve port 41 with the third valve port 43. Since the first valve port 41 is connected to the first through hole 210 and the third valve port 43 is connected to the first liquid outlet 311, the first through hole 210 and the first liquid outlet 311 are connected. The oil in the pump oil chamber 33 can enter the first cavity 211 through the first liquid outlet 311 and the first through hole 210, thereby raising the lifting component 22 and increasing the height of the suspension assembly 10. The vehicle is suitable for off-road conditions.

[0042] In addition, such as Figure 1 and Figure 2As shown, the lifting assembly 20 also includes a limiting member 24, which is disposed within the support member 21. The limiting member 24 limits the lifting member 22 after it descends relative to the support member 21. The limiting member 24 serves a limiting function; by being disposed within the support member 21, the limiting member 24 can be fixed, allowing it to better fulfill its limiting function. Furthermore, after the lifting member 22 descends relative to the support member 21, the limiting member 24 can stop the lifting member 22 from descending further, maintaining a constant height, thereby ensuring the suspension assembly 10 maintains a stable height under highway conditions. The limiting member 24 can be a limiting ring.

[0043] Optionally, such as Figure 3 As shown, the suspension assembly 1 also includes a shock absorber 50, which is connected to the wheel, and the lower end of the support member 21 is connected to the shock absorber 50. The shock absorber 50 can buffer and dampen vibrations. Connecting the shock absorber 50 to the wheel reduces the transmission of wheel vibrations to the vehicle body, thereby improving passenger comfort. The lower end of the support member 21 is connected to the shock absorber 50, so that when the wheel is moving on off-road terrain, the support member can move upward relative to the wheel, thereby increasing the height between the suspension assembly 10 and the wheel, allowing the vehicle to better traverse off-road conditions.

[0044] It should be noted that the lifting assembly 20 can also be arranged at the connection between the spring and the vehicle body, or between the upper bracket of the shock absorber and the vehicle body, thus allowing for flexible application in different types of suspension assemblies 10. Furthermore, by controlling the lifting assembly 20 separately, single-axle raising / lowering or simultaneous raising / lowering of both axles can be achieved. Additionally, the maximum raising / lowering height can be adjusted by adjusting the position of the third through hole 230 on the connecting channel 23.

[0045] In addition, such as Figure 4 As shown, the suspension assembly 1 also includes a universal joint 60, and the suspension component 10 includes a connecting arm 11. The universal joint 60 is connected to the connecting arm 11, and the oil pump assembly 30 is connected to the universal joint 60. Connecting the universal joint 60 to the connecting arm 11 provides relative fixation for the universal joint 60. Connecting the oil pump assembly 30 to the universal joint 60 allows the oil pump assembly 30 to move relative to the vibration of the connecting arm 11, thereby absorbing and pumping oil to adjust the height of the suspension component 10. Furthermore, the universal joint 60 adapts to the angle changes during the swing of the connecting arm 11, preventing excessive friction between the oil pump assembly 30 and the connecting arm 11. The connecting arm 11 can be a swing arm or a trailing arm.

[0046] The vehicle according to an embodiment of the present invention includes: the suspension assembly 1 described in the above embodiments.

[0047] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0048] In the description of this invention, "first feature" and "second feature" may include one or more of the features. In the description of this invention, "a plurality of" means two or more. In the description of this invention, "above" or "below" the second feature may include direct contact between the first and second features, or it may include contact between the first and second features not being in direct contact but through another feature between them. In the description of this invention, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature.

[0049] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0050] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A suspension assembly, characterized in that, include: Suspension assembly (10); The lifting assembly (20) includes a support member (21) and a lifting member (22). The lifting member (22) is filled with oil and is connected to the vehicle body. The lifting member (22) is movable up and down on the support member (21). An oil pump assembly (30) is disposed on the suspension assembly (10) and is connected to the lifting member (22). The oil pump assembly (30) moves relative to the suspension assembly (10) with the vibration of the suspension assembly (10) to pump the oil in the lifting member (22) into the oil pump assembly (30). The oil pumped into the oil pump assembly (30) is selectively introduced into the support member (21) to push the lifting member (22) to move upward. The oil pump assembly (30) includes: a housing (31) and an oil pump component (32). An oil pump chamber (33) is formed inside the housing (31). The oil pump chamber (33) is connected to the lifting component (22). The oil pump component (32) is movably disposed in the oil pump chamber (33) and is connected to the suspension assembly (10). The housing (31) is provided with an inlet (310) and a first outlet (311), and the pump oil component (32) is provided with a second outlet (320). The first outlet (311) is located above the second outlet (320). The inlet (310), the first outlet (311) and the second outlet (320) are respectively connected to the pump oil chamber (33), and the inlet (310) is connected to the lifting component (22). The first outlet (311) is selectively connected to the support component (21), and the second outlet (320) is connected to the inlet (310).

2. The suspension assembly according to claim 1, characterized in that, The support member (21) is provided with a first through hole (210), and the lifting member (22) is provided with a second through hole (220). The first through hole (210) is selectively connected to the first liquid outlet (311) and the second through hole (220), and the second through hole (220) is also connected to the liquid inlet (310).

3. The suspension assembly according to claim 2, characterized in that, The support member (21) has a first cavity (211) formed inside, which is connected to the first through hole (210). The lifting member (22) has a second cavity (221) formed inside, which is connected to the second through hole (220). The support member (21) is provided with a connecting channel (23), which is connected to the second cavity (221). The connecting channel (23) is provided with a third through hole (230), which is connected to the first cavity (211).

4. The suspension assembly according to claim 2, characterized in that, Also includes: The control component (40) includes a first valve port (41), a second valve port (42), and a third valve port (43). The first valve port (41) is connected to the first through hole (210), the second valve port (42) is connected to the second through hole (220), and the third valve port (43) is connected to the first liquid outlet (311). The first valve port (41) is selectively connected to the second valve port (42) and the third valve port (43).

5. The suspension assembly according to claim 1, characterized in that, The lifting assembly (20) further includes a limiting member (24), which is disposed within the support member (21) so that after the lifting member (22) descends relative to the support member (21), the limiting member (24) limits the lifting member (22).

6. The suspension assembly according to claim 1, characterized in that, Also includes: The shock absorber (50) is connected to the wheel, and the lower end of the support (21) is connected to the shock absorber (50).

7. The suspension assembly according to claim 1, characterized in that, Also includes: Universal connector (60), the suspension assembly (10) includes: connecting arm (11), the universal connector (60) is connected to the connecting arm (11), and the oil pump assembly (30) is connected to the universal connector (60).

8. A vehicle, characterized in that, include: The suspension assembly according to any one of claims 1-7.