CN117922211A - Hydro-pneumatic suspension device and vehicle - Google Patents

Abstract

The invention provides an oil-gas suspension device and a vehicle, and relates to the technical field of vehicles. The tank body is provided with a sliding rod which can move relative to the tank body under the action of external force so as to be close to or far away from the installation area in the first direction. The canister may generate a damping force to dampen vibration or shock feedback received from the frame in the first direction. The valve body is used for controlling the movement of the sliding rod in a first direction. The tank body and the valve body are arranged in a staggered manner in the horizontal direction and at least partially coincide in the vertical direction, so that the operating space in each direction of the frame is fully utilized. The damping component is respectively provided with the tank body and the valve body, so that the structures of the tank body and the valve body are simplified, and the tank body and the valve body are convenient to process and mold.

Description

Hydro-pneumatic suspension device and vehicle

Technical Field

The invention belongs to the technical field of vehicles, and particularly relates to a hydro-pneumatic suspension device and a vehicle.

Background

The hydro-pneumatic suspension is a device capable of buffering impact force fed back to a frame or a vehicle body from a bumpy road surface, and attenuating vibration caused by the impact force, so that a vehicle can run smoothly. The hydro-pneumatic suspension has the variable stiffness characteristic, so that the running stability of the vehicle on a common road surface can be improved, the risk of breakdown of the suspension due to impact on a bumpy road surface can be reduced, and the driving comfort of a driver and the running safety of the vehicle are improved. However, the structure in the related hydro-pneumatic suspension is complex, and the layout of parts is complicated, so that the processing and the assembly forming are inconvenient, and the overhaul and the later maintenance of the hydro-pneumatic suspension are inconvenient.

Disclosure of Invention

In view of the above, the present invention provides an oil-gas suspension device and a vehicle, so as to solve the technical problems of simplifying the structure of the oil-gas suspension and facilitating layout.

The technical scheme provided by the embodiment of the invention is realized as follows:

the embodiment of the invention provides an oil-gas suspension device, which comprises:

The power assembly is used for controlling the power assembly,

A frame provided with a mounting area for mounting at least a part of the power assembly;

The damping assembly comprises a tank body and a valve body; the valve body is positioned in the installation area, the tank body is provided with a sliding rod, one end of the sliding rod protrudes out of the frame in a first direction, and the sliding rod is used for moving relative to the tank body under the action of external force so as to be close to or far from the installation area in the first direction; the pressure of the tank body is used for gradually reducing the movement of the sliding rod in the direction of approaching the installation area, and the valve body is used for controlling the movement of the sliding rod in the first direction; the tank body and the valve body are arranged in a staggered manner in the horizontal direction and at least partially coincide in the vertical direction, and the first direction is in the horizontal direction.

In some embodiments, the mounting region extends in a second direction, the second direction being in the horizontal direction and perpendicular to the first direction; the damping components are arranged in a plurality, and the damping components are arranged at intervals in the second direction.

In some embodiments, the damping assembly includes a first conduit communicating the canister and the valve body, the hydro-pneumatic suspension assembly further comprising:

The pump body is provided with a second pipeline which is communicated with a plurality of valve bodies, the pump body is at least electrically connected with the valve bodies on the same side in the first direction, and the valve bodies control the first pipeline to be communicated with or separated from the second pipeline.

In some embodiments, the frame comprises:

a first stringer extending in the second direction;

The second longitudinal beam is opposite to the first longitudinal beam in the first direction and is arranged at intervals, and the mounting area is formed between the first longitudinal beam and the second longitudinal beam;

Wherein the canister extends in the first direction; one end of the tank body in the first direction is connected with the first longitudinal beam, and the valve body is arranged on one side of the first longitudinal beam, close to the installation area, in the first direction; and/or one end of the tank body in the first direction is connected with the second longitudinal beam, and the valve body is arranged on one side, close to the installation area, of the second longitudinal beam in the first direction.

In some embodiments, the first stringer is provided with a limiting hole penetrating in the first direction, and/or the second stringer is provided with a limiting hole penetrating in the first direction; the tank body is inserted into the limiting hole.

In some embodiments, the valve body extends in the second direction, and the valve body is located between two end faces of the first longitudinal beam in the vertical direction.

In some embodiments, the power assembly includes a battery pack having at least two sets of the damping components disposed between two sides in the second direction.

In some embodiments, the frame is provided with:

the connecting plate is connected with the battery pack at one side in the first direction, and the other side is arranged at intervals of the frame; the connecting plate is provided with a plurality of mounting positions which are arranged at intervals in the second direction and used for connecting the battery pack and the frame; the tank body is arranged at intervals on the connecting plate in the first direction and is inserted between two adjacent installation positions, and the valve body is connected with one end of the connecting plate in the vertical direction.

In some embodiments, the connection plate is further provided with:

Slotting, penetrating through two end faces of the connecting plate in the vertical direction; in the second direction, a slot is formed between every two adjacent mounting positions, a valve body is arranged between every two adjacent slots, and one end, far away from the sliding rod, of the tank body in the first direction extends into the slot.

In some embodiments, the side of the frame away from the mounting area in the first direction is provided with:

A plurality of dampers extending in the vertical direction; the dampers are arranged at least on two sides of the power assembly in the first direction, and are arranged at least on two sides of the power assembly in the second direction.

The invention provides a vehicle, which comprises the oil-gas suspension device.

The embodiment of the invention provides a hydro-pneumatic suspension device and a vehicle, wherein the vehicle comprises the hydro-pneumatic suspension device. The hydro-pneumatic suspension device comprises a power assembly, a frame and a damping assembly, wherein a mounting area is arranged on the inner side of the frame, and the power assembly is at least partially arranged in the mounting area. The damping component comprises a tank body and a valve body, the valve body is arranged in the installation area, and the frame can utilize the structural strength of the frame to protect the valve body and the power assembly in the horizontal direction. The horizontal direction includes first direction, is equipped with movable slide bar in the jar body, and the one end of slide bar is protruding the frame outside setting in first direction, and the slide bar can be under the exogenic action relative jar body motion to be close to or keep away from the installation zone in first direction. The canister may generate a damping force to dampen vibration or shock feedback received from the frame in the first direction. The valve body is used for controlling the movement of the sliding rod in the first direction, so that the vehicle can run safely and comfortably under various road conditions and various scenes. The tank body and the valve body are arranged in a staggered manner in the horizontal direction so as to keep the tank body and the valve body to have independent installation spaces, and the tank body and the valve body can be overhauled and maintained conveniently. The tank body and the valve body are at least partially overlapped in the vertical direction, so that the tank body and the valve body are assembled by fully utilizing the height space of the frame, and the longitudinal volume of the damping assembly is reduced. The damping component fully utilizes the operation space in all directions of the frame, improves the space utilization rate of the oil-gas suspension device, has smaller volume and does not influence the arrangement of other parts. Compared with the embodiment of arranging the valve body in the tank body, the damping component in the embodiment of the invention is used for arranging the working part and the control part in a split manner, and arranging the tank body and the valve body respectively, so that a sealing structure of the valve body is not required to be reserved in the tank body, the valve body is not required to be formed into a microstructure with high processing difficulty, the structures of the tank body and the valve body are simplified, and the tank body and the valve body are convenient to process and form. On the other hand, the valve body is arranged in the installation area, so that even if the sliding rod breaks through the tank body due to larger external force, the valve body can not fail, and the valve body can still control the pump body and the pipeline to be closed so as to reduce the risk of air leakage, so that the vehicle has both driving comfort and driving safety.

Drawings

FIG. 1 is a perspective view of a hydro-pneumatic suspension assembly at an angle according to an embodiment of the present application;

Fig. 2 is an enlarged view of a portion a in fig. 1;

FIG. 3 is a front view of a hydro-pneumatic suspension assembly according to an embodiment of the application;

FIG. 4 is a partial cross-sectional view taken along the direction B-B in FIG. 3;

FIG. 5 is a perspective view of a hydro-pneumatic suspension assembly at another angle according to an embodiment of the application;

Fig. 6 is an enlarged view of a portion C in fig. 5.

Reference numerals illustrate:

1. A power assembly; 11. a battery pack; 2. a frame; 21. an installation area; 22. a first stringer; 23. a second stringer; 24. a limiting hole; 25. a connecting plate; 251. a mounting position; 252. slotting; 3. a damping assembly; 31. a tank body; 311. a working piston; 312. a compensation piston; 313. a first damping chamber; 314. a second damping chamber; 315. a compensation chamber; 316. a damping hole; 32. a valve body; 33. a slide bar; 331. a first end; 332. a second end; 34. a first pipeline; 35. a second pipeline; 4. a shock absorber.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

The individual features described in the specific embodiments can be combined in any suitable manner, without contradiction, for example by combination of different specific features, to form different embodiments and solutions. Various combinations of the specific features of the invention are not described in detail in order to avoid unnecessary repetition.

In the following description, references to the terms "first\second\etc. are merely to distinguish between different objects and do not indicate that the objects have the same or a relationship therebetween. It should be understood that references to orientations of "above", "below", "outside" and "inside" are all orientations in normal use, and "left" and "right" directions refer to left and right directions illustrated in the specific corresponding schematic drawings, and may or may not be left and right directions in normal use.

It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. "plurality" means greater than or equal to two.

Embodiments of the present invention provide a vehicle including a hydro-pneumatic suspension device so that the vehicle can maintain running smoothness on a general road surface and also can cushion impact force transmitted from a bumpy road surface to a frame or a vehicle body. It should be noted that the vehicle may be a plurality of types of cars, commercial vehicles, trucks, buses, off-road vehicles, etc., and it is to be understood that the type of the vehicle according to the embodiments of the present invention is not limited to the structure of the hydro-pneumatic suspension device according to the embodiments of the present invention. It is explained that the impact force in the foregoing "impact feedback" is limited to a certain range, and the impact force is not sufficient to crush and deform the vehicle, and only the vehicle is suddenly crashed and shaken, but the running of the vehicle is not affected. The aforementioned "bumpy road" means that the road surface has irregularities in a large portion thereof and has large undulations in the vertical direction with respect to the horizontal plane.

An embodiment of the present application provides a hydro-pneumatic suspension device, fig. 1 is a perspective view of the hydro-pneumatic suspension device at an angle, referring to fig. 1, the hydro-pneumatic suspension device includes a power assembly 1, a frame 2 and a damping component 3, and the hydro-pneumatic suspension device has an independent frame 2, so that a vehicle has a non-load-bearing body. In short, "load bearing" means that the vehicle in the embodiment of the present application is a non-load-bearing vehicle type and is different from a load-bearing vehicle type, that is, the load-bearing body in the vehicle is the frame 2, and the vehicle body only bears the weight of the loaded person and the load. The connection surface of the frame 2 and the vehicle body is provided with flexible parts such as a flexible rubber pad, so that vibration feedback from a bumpy road surface to the inside of the vehicle body can be reduced, and the driving comfort level is improved.

The frame 2 is provided with a mounting area 21, and the powertrain 1 is at least partially arranged in the mounting area 21. The powertrain 1 is a device capable of outputting power to a vehicle, driving the vehicle to travel, and the powertrain 1 includes an engine, and/or an electric motor. That is, the vehicle may be a fuel-powered vehicle, a new energy pure electric vehicle, or a hybrid vehicle. Regardless of the type of powertrain 1 provided, powertrain 1 is at least partially (e.g., battery pack 11 in an embodiment of the present invention) mounted within mounting area 21.

Fig. 2 is an enlarged view of a portion a in fig. 1, and referring to fig. 2, the damping assembly 3 includes a can 31 and a valve body 32, and a slide rod 33 is disposed in the can 31. One end of the slide bar 33 protrudes outside the frame 2 in the first direction, and the other end is disposed in the can 31. The first direction is in the direction N1 shown in fig. 2, and the first direction is the width direction of the frame. The "frame outside" mentioned above means the side of the contour boundary of the frame 2 away from the mounting area 21, and correspondingly, the side of the contour boundary of the frame 2 near the mounting area 21 may be defined as the frame inside. The sliding rod 33 can move along the first direction N1 towards the direction approaching the installation area 21 under the action of external force, and the external force for driving the sliding rod 33 to move along the first direction N1 towards the direction approaching the installation area 21 can be collision of a vehicle with other vehicles or road piles in the first direction or impact and vibration fed back to the first direction by a bumpy road surface. The pressure in the can 31 gradually reduces the movement of the slide bar 33 in a direction approaching the mounting area 21, that is, a damping force can be generated inside the can 31, which damping force can attenuate vibration or impact feedback received by the vehicle in the first direction.

Referring to fig. 2, the can 31 and the valve body 32 are disposed in a staggered manner in the horizontal direction and at least partially overlap in the vertical direction. The horizontal direction is an extending plane direction formed by a first direction and a second direction, wherein the second direction is perpendicular to the first direction, the second direction is in the N2 direction shown in fig. 2, and the second direction is the length direction of the frame 2. The first direction is also in the horizontal direction, so the damping assembly 3 can attenuate vibration and impact feedback received by the vehicle in the horizontal direction. When the vehicle runs on a bumpy road, the side of the powertrain 1 is easily worn or impacted by the large bump, which is likely to cause collision and vibration in the horizontal direction between the side of the frame 2 and the side of the vehicle body. The tank 31 dampens the vibration and impact feedback in the first direction, thereby protecting the powertrain 1 in the horizontal direction, reducing the risk of the powertrain 1 being worn out and aged or even exploded by horizontal impact. The damping component 3 can flexibly buffer vibration and impact feedback of the vehicle in the first direction while prolonging the service life of the power assembly 1, so that the vehicle can take account of running safety and comfort.

Fig. 3 is a front view of the hydro-pneumatic suspension device according to the embodiment of the invention, referring to fig. 2 and 3, the vertical direction is perpendicular to the horizontal direction, and the vertical direction is in the direction N3 shown in fig. 3, and the vertical direction N3 is the height direction of the frame 2. It is simply understood that the horizontal direction is a direction parallel to the horizontal ground and the vertical direction is a direction perpendicular to the horizontal ground, and it is understood that there may be irregularities in a partial area of the ground, i.e., the horizontal ground is not required to be absolutely horizontal, and then the corresponding vertical direction is not required to be absolutely vertical, allowing for the existence of a ground levelness error, as long as it is substantially horizontal and vertical. The fact that the tank body 31 and the valve body 32 are staggered in the horizontal direction means that orthographic projections of the tank body 31 and the valve body 32 in the vertical direction can be arranged at intervals in the N1 direction, can be arranged at intervals in the N2 direction, and can be arranged at intervals in both the N1 and N2 directions. No matter where the tank 31 and the valve body 32 are arranged in the horizontal direction, the tank 31 and the valve body 32 are staggered in the horizontal direction as shown in fig. 2, so that the tank 31 and the valve body 32 have independent installation spaces, and the tank 31 and the valve body 32 are conveniently arranged. At least partial overlapping of the tank 31 and the valve body 32 in the vertical direction means that the orthographic projection of the tank 31 and the valve body 32 in the horizontal direction is at least partially overlapped, so as to fully utilize the height space of the frame 2 to assemble the tank 31 and the valve body 32 and reduce the longitudinal volume of the damping assembly 3. The damping component 3 in the embodiment of the invention has a simple structure, is convenient for respectively realizing the processing and forming of the tank body 31 and the valve body 32, is convenient for respectively assembling the tank body 31 and the valve body 32 to the frame 2, and improves the assembly efficiency of the damping component 3. And the damping component 3 fully utilizes the operation space in all directions of the frame 2, improves the space utilization rate of the oil-gas suspension device, and is convenient for laying other parts.

For convenience of explanation, the working principle of the damping assembly 3 is explained below. Fig. 4 is a partial sectional view of fig. 3 in the direction B-B, and referring to fig. 4, an end of the slide bar 33 protruding outside the frame 2 is defined as a first end 331, and an end of the slide bar 33 inside the can 31 is defined as a second end 332. Under the impact or vibration, the first end 331 receives the external force, the slide bar 33 moves toward the mounting area 21, and the pressure of the can 31 gradually cuts down the movement of the slide bar 33 toward the mounting area 21, that is, the can 31 may generate a damping force to attenuate the vibration or impact feedback from the first end 331 to the second end 332.

The present application is not limited to the specific structure of the can 31, as long as the can 31 can generate a damping force. For example, canister 31 may be configured as a hydro-pneumatic spring structure as shown in the present schematic. In some embodiments of the present application, referring to fig. 4, a working piston 311 and a compensating piston 312 are disposed in the tank 31, and the working piston 311 is connected to the second end 332 of the slide rod 33. The working piston 311 and the compensating piston 312 can reciprocally slide along the first direction N1, and the working piston 311 and the compensating piston 312 divide the internal cavity of the tank 31 into a first damping cavity 313, a second damping cavity 314 and a compensating cavity 315, wherein the first damping cavity 313 and the second damping cavity 314 are filled with oil, and the compensating cavity 315 is filled with inert gas (such as nitrogen). The first damping cavity 313 and the second damping cavity 314 are distributed on two sides of the working piston 311 in the first direction, and the working piston 311 is provided with a damping hole 316 along the first direction. The first end 331 is moved by an external force in a direction approaching the mounting area 21, so that the working piston 311 moves in a direction approaching the compensating piston 312, and the volume of the second damping cavity 314 is compressed, so that part of oil in the second damping cavity 314 enters the first damping cavity 313 through the damping hole 316, and the oil flowing resistance at the damping hole 316 resists the movement of the working piston 311, thereby generating a damping and buffering effect. Then, under the action of the valve body 32, the volume in the compensation chamber 315 gradually goes to equilibrium from compression, and the working piston 311 is restored under the action of the pressure difference, that is, the slide rod 33 is moved away from the mounting region 21 to restore.

It should be noted that, the hydro-pneumatic spring structure shown in the schematic diagram of the present invention is a single-air-chamber separated hydro-pneumatic spring structure, and under actual working conditions, a user may select other types of hydro-pneumatic springs according to actual requirements, for example, a single-air-chamber separated type, a double-air-chamber separated type, etc. The damping hole 316 is micro-porous under actual conditions, and for convenience of reference, the damping hole 316 is exaggerated in the schematic diagram of the present invention.

Valve body 32 may control movement of slide bar 33 in a first direction, e.g., valve body 32 may drive slide bar 33 in a direction toward mounting region 21, may drive slide bar 33 in a direction away from mounting region 21, and may also hold slide bar 33 stationary. For ease of explanation, the term "sliding bar 33 moves in a direction approaching the mounting region 21" may be understood as the sliding bar 33 moves inward; correspondingly, the term "the sliding rod 33 moves away from the installation area 21" means that the sliding rod 33 moves outwards, and after the sliding rod 33 moves inwards by external force, the valve body 32 can control other components (such as a pump body) to press the compensation cavity 315, and the pressure drives the sliding rod 33 to move outwards to reset; in a state that the vehicle runs in a narrow lane, the valve body 32 electrically controls the pressure in the compensation cavity 315 so as to adjust the length of the first end 331 extending out of the frame 2, thereby reducing the risk of scratch of the vehicle; in the state that the vehicle runs on a curve, the valve body 32 can control the sliding rod 33 to move inwards so as to reduce the inclination angle of the frame 2 and reduce the risk of overlarge deviation angle and even inclined rollover of the vehicle; in the state that the vehicle is in a suspended state or in a cargo loading and unloading state, the valve body 32 can control the sliding rod 33 to keep static, and the damping component 3 is switched from flexibility to rigidity so as to keep the vehicle to stably run at a low speed; when the vehicle is going to run to the bumpy road, the valve body 32 can control the sliding rod 33 to move outwards so as to increase the displacement for sliding the sliding rod 33, so that the sliding rod 33 can greatly attenuate the impact and vibration feedback transmitted to the frame 2 by the bumpy road in the horizontal direction, and the risk of breakdown of the hydro-pneumatic suspension caused by the larger impact is reduced. That is, the valve body 32 can adjust the position of the slide rod 33, so that the vehicle can travel under various road conditions and various scenes.

It will be appreciated that referring to fig. 2, the valve body 32 has a plurality of control valves integrated therein, each of which adjusts the air pressure in common, thereby adjusting the movement of the slide rod 33 in the first direction, and the inside of the can body 31 is not provided with a control valve, but only serves as a damping driving source, that is, the can body 31 is a working member, and the valve body 32 is a control member. Compared with the embodiment of arranging the valve body 32 inside the tank body 31, the damping component 3 in the embodiment of the invention is characterized in that the working component and the control component are arranged in a split mode, the installation space of the tank body 31 and the installation space of the valve body 32 are mutually independent, workers can realize the assembly of the tank body 31 and the valve body 32 in a partitioned and segmented mode, and then the tank body 31 and the valve body 32 can be assembled to the frame respectively, so that the assembly efficiency of the damping component 3 is improved. The sealing structure of the valve body 32 is not required to be reserved in the tank body 31, the valve body 32 is not required to be formed into a microstructure with high processing difficulty, the structures of the tank body 31 and the valve body 32 are simplified, the tank body 31 and the valve body 32 are convenient to process and form, and the tank body 31 and the valve body 32 are also convenient to overhaul and replace damaged parts respectively.

Referring to fig. 2, the valve body 32 is disposed within the mounting region 21, that is, the valve body 32 is protected by the frame 2. Even if the vehicle runs on or is impacted on a relatively bumpy road, the frame 2 and the tank 31 can both protect the valve body 32 in the horizontal direction, and the frame 2 can absorb part of impact and vibration energy by utilizing the structure of the tank 31 while the tank 31 absorbs part of impact and vibration energy through the movement of the sliding rod 33, so that the risk of failure or explosion caused by the damage of the valve body 32 is reduced. Even if the sliding rod 33 breaks through the tank 31 due to larger external force, the valve body 32 cannot fail, so that the maintenance cost of parts of the damping assembly 3 is reduced. And after the tank body 31 is broken down, the valve body 32 can be closed in a power-off way, so that the risk of air leakage between the pump body and the pipeline can be reduced, the energy is saved, and the risk of explosion of the oil-gas suspension device is reduced.

In summary, the embodiment of the invention provides a hydro-pneumatic suspension device, which comprises a power assembly 1, a frame 2 and a damping component 3, wherein a mounting area 21 is arranged on the inner side of the frame 2, and the power assembly 1 is at least partially arranged in the mounting area 21. The damping assembly 3 includes a tank 31 and a valve body 32, and the valve body 32 is disposed in the mounting area 21, so that the frame 2 can protect the valve body 32 and the power assembly 1 in the horizontal direction by utilizing its structural strength. The horizontal direction includes a first direction, a movable slide bar 33 is disposed in the tank 31, one end of the slide bar 33 protrudes out of the frame 2 in the first direction, and the slide bar 33 can move relative to the tank 31 under the action of external force so as to approach or separate from the mounting area 21 in the first direction. The pressure of the can 31 can gradually cut down the movement of the slide bar 33 in the direction approaching the mounting area 21, i.e., the can 31 can generate a damping force to attenuate vibration or impact feedback received from the frame 2 in the first direction. Valve body 32 is used to control movement of slide bar 33 in a first direction including, but not limited to, movement of control slide bar 33 away from mounting region 21, movement of control slide bar 33 toward mounting region 21, and control slide bar 33 remaining stationary. The valve body 32 can adjust the position of the slide rod 33, so that the vehicle can run safely under various road conditions and various scenes.

Wherein, the tank 31 and the valve 32 are arranged in a dislocation manner in the horizontal direction, so that the tank 31 and the valve 32 have independent installation spaces, and the tank 31 and the valve 32 are convenient to overhaul and replace damaged parts respectively. The tank 31 and the valve body 32 are at least partially overlapped in the vertical direction so as to fully utilize the height space of the frame 2 to assemble the tank 31 and the valve body 32 and reduce the longitudinal volume of the damping assembly 3. The damping component 3 fully utilizes the operation space in all directions of the frame 2, improves the space utilization rate of the oil-gas suspension device, has smaller volume and does not influence the arrangement of other parts. Compared with the embodiment of arranging the valve body 32 inside the tank body 31, the damping component 3 in the embodiment of the invention separately arranges the working component and the control component, and respectively arranges the tank body 31 and the valve body 32, so that a sealing structure of the valve body 32 does not need to be reserved inside the tank body 31, and the valve body 32 does not need to be formed into a microstructure with higher processing difficulty, thereby simplifying the structures of the tank body 31 and the valve body 32 and facilitating the processing and forming of the tank body 31 and the valve body 32. On the other hand, the valve body 32 is disposed in the mounting area 21, so that even if the sliding rod 33 breaks through the tank 31 due to a large external force, the valve body 32 will not fail, which is beneficial to reducing the maintenance cost of the components of the damping assembly 3 and reducing the risk of air leakage between the pump body and the pipeline, so that the vehicle can take driving comfort and driving safety into consideration.

In some embodiments, referring to fig. 1, the mounting region 21 extends in the second direction N2. The extending direction of the mounting region 21 indicates the maximum dimension direction of the mounting region 21, and in the embodiment of the present invention, the maximum dimension direction of the mounting region 21 is the length direction of the mounting region 21, that is, the length direction of the mounting region 21 is in the second direction N2. Referring to fig. 2, the damping assemblies 3 are provided in plurality, the plurality of damping assemblies 3 are disposed at intervals in the second direction N2, and the plurality of damping assemblies 3 jointly cover the length direction of the installation area 21, so that the coverage area of the damping action point of the hydro-pneumatic suspension device on the side of the installation area 21 is increased, the protection effect of the hydro-pneumatic suspension device on the installation area 21 in the horizontal direction is improved, and the safety of the power assembly 1 and the valve body 32 is improved.

In some embodiments, referring to fig. 2, the damping assembly 3 includes a first conduit 34 that communicates the canister 31 with the valve body 32. The hydro-pneumatic suspension assembly further comprises a pump body (not shown) provided with a second conduit 35 communicating the valve body 32 with the pump body. It can be understood from the above embodiments that the first pipeline 34 connects the tank 31 and the valve 32 inside the frame 2, and the second pipeline 35 connects the valve 32 and the pump body inside the frame 2, that is, the first pipeline 34 and the second pipeline 35 are both disposed in the mounting area 21, the damping force of the tank 31 and the structure of the frame 2 can both protect the first pipeline 34 and the second pipeline 35 in the horizontal direction, and the risk of breakage of the first pipeline 34 and the second pipeline 35 due to vibration or impact is reduced. The valve body 32 controls the first pipeline 34 to be communicated with or separated from the second pipeline 35, and in a state of damping impact and vibration feedback in a first direction, the valve body 32 controls the first pipeline 34 to be communicated with the second pipeline 35 so as to buffer movement of the sliding rod 33 in the first direction and adjust the position of the sliding rod 33; in the state of the vehicle hanging or loading and unloading cargoes, the valve body 32 controls the first pipeline 34 to be separated from the second pipeline 35, and the acting force of the tank body 31 on the sliding rod 33 is switched from flexibility to rigidity so as to keep the cargoes stable.

The pump body is electrically connected to at least the plurality of valve bodies 32 on the same side in the first direction. In the case where the plurality of valve bodies 32 are disposed on the same side of the frame 2, one pump body is disposed, and one pump body is electrically connected to the plurality of valve bodies 32. In the case that the plurality of valve bodies 32 are respectively disposed at both sides of the frame 2 in the first direction, two pump bodies are provided, the plurality of valve bodies 32 at one side of the frame 2 are electrically connected to one pump body, and the plurality of valve bodies 32 at the other side of the frame 2 are electrically connected to the other pump body. No matter where the valve bodies 32 are arranged on the frame 2, at least one pump body is electrically connected with the valve bodies 32, and one pump body can simultaneously supply pressure to the plurality of groups of damping assemblies 3, so that the energy consumption is saved, and the layout and the assembly of the pump bodies are also convenient.

In some embodiments, referring to fig. 1, the frame 2 includes a first side member 22 and a second side member 23, each of the first side member 22 and the second side member 23 extending along a second direction N2, the second side member 23 being disposed opposite to and spaced apart from the first side member 22 in the first direction N1, that is, the first side member 22 and the second side member 23 are disposed parallel and spaced apart in the first direction N1, ignoring the thickness of the first side member 22 and the second side member 23. The spacing between the first and second stringers 22, 23 forms the mounting region 21, that is, the inner sides of the first and second stringers 22, 23 enclose the lateral boundaries of the mounting region 21. The can 31 extends along the first direction, so the slide bars 33 and the can 31 are perpendicular to the first longitudinal beam 22 and the second longitudinal beam 23, so that the first longitudinal beam 22 and the second longitudinal beam 23 are uniformly stressed.

In some embodiments, referring to fig. 1, the tank 31 is connected to the first longitudinal beam 22 at one end in the first direction, the valve body 32 is disposed on a side of the first longitudinal beam 22 in the first direction near the mounting area 21, and in this embodiment, the damping assembly 3 is disposed on a side of the powertrain 1 in the first direction (left side of the powertrain 1 in fig. 1), and the damping assembly 3 dampens vibration or shock feedback at the first longitudinal beam 22.

Of course, in some embodiments, the tank 31 may be connected to the second longitudinal beam 23 at one end of the first direction, and the valve body 32 is disposed on one side of the second longitudinal beam 23 adjacent to the mounting area 21 in the second direction, and in this embodiment, the damping component 3 is disposed on the other side of the powertrain 1 in the first direction (the right side of the powertrain 1 in fig. 1), and the damping component 3 dampens vibration or impact feedback at the second longitudinal beam 23. In some embodiments, one ends of the plurality of tanks 31 in the first direction may be connected to the first longitudinal beam 22 and the second longitudinal beam 23, and the plurality of valve bodies 32 may be disposed inside the first longitudinal beam 22 and the second longitudinal beam 23, respectively, where in this embodiment, the damping component 3 dampens vibration or impact feedback on both sides of the power assembly 1 in the first direction, and the damping component 3 bi-directionally protects the power assembly 1 in the first direction. However, the damper assembly 3 can protect the power assembly 1 in the horizontal direction regardless of the embodiment in which the damper assembly 3 is provided.

In some embodiments, referring to fig. 2, the first stringer 22 is provided with a limiting aperture 24 therethrough in a first direction, and the canister 31 is inserted within the limiting aperture 24 at the first stringer 22. Of course, in some embodiments, the second longitudinal beam 23 may be provided with a limiting hole 24 along the first direction, and in this embodiment, the tank 31 is inserted into the limiting hole 24 at the second longitudinal beam 23; the first longitudinal beam 22 and the second longitudinal beam 23 may be provided with limiting holes 24 along the first direction, and the plurality of cans 31 may be inserted into the limiting holes 24 of the first longitudinal beam 22 and the second longitudinal beam 23 respectively. Regardless of the above embodiments of the can 31, the can 31 is located between two end surfaces of the first longitudinal beam 22 (or the second longitudinal beam 23) in the vertical direction, that is, the height of the first longitudinal beam 22 and the second longitudinal beam 23 is not affected by the volume of the can 31, and the height of the first longitudinal beam 22 and the second longitudinal beam 23 is not increased. The tank body 31 can be assembled only by penetrating and arranging the limiting holes 24 on the first longitudinal beam 22 (and/or the second longitudinal beam 23) without additionally arranging a structure for installing the tank body 31 at the top end and the bottom end of the first longitudinal beam 22 and the second longitudinal beam 23, so that the first longitudinal beam 22 and the second longitudinal beam 23 can be conveniently processed, and the tank body is simple in structure and convenient to implement. For ease of explanation, all embodiments below will be explained taking the case where the can 31 is inserted into the limiting hole 24 in the first side member 22.

In some embodiments, referring to fig. 2, the valve body 32 extends along the second direction, that is, the length direction of the valve body 32 is in the second direction, and the length direction of the valve body 32 and the length direction of the mounting area 21 are both in the second direction, so as to make full use of the length space of the mounting area 21 to arrange the valve body 32. The valve body 32 is located between both end faces of the first longitudinal beam 22 in the vertical direction, and it is understood that the valve body 32 is placed laterally differently from the longitudinal direction, so that a larger-sized valve body 32 is conveniently provided, so that a plurality of control valves are integrally provided in the valve body 32. The volume of the valve body 32 does not occupy the height space of the two longitudinal beams, and in combination with the above, the volume of the tank 31 does not occupy the height space of the two longitudinal beams, so that the damping assembly 3 keeps a smaller longitudinal volume while the damping assembly 3 is distributed by fully utilizing the height space of the frame 2, the distribution of other parts is not interfered, and the connection of the frame 2 and the vehicle body is not interfered.

In some embodiments, referring to fig. 1, the powertrain 1 includes a battery pack 11, that is, the vehicle in the embodiment of the present application is a hybrid vehicle or an electric vehicle. The battery pack 11 is equipped with two sets of damping subassembly 3 between the both sides face in the second direction, and two sets of damping subassembly 3 cover battery pack 11 along the second direction to fully protect battery pack 11 in the horizontal direction, reduce the impaired risk of battery pack 11. Of course, three or four groups of damping assemblies 3 may be disposed between two sides of the battery pack 11 in the second direction, and the present application does not limit the number of damping assemblies 3, but at least two groups of damping assemblies 3 can cover the side of the battery pack 11 in the second direction, so as to increase the damping buffer position of the oil-gas suspension device in the second direction, and the groups of damping assemblies 3 are loaded together in the second direction, thereby improving the safety of the battery pack 11.

Fig. 5 is a perspective view of an oil and gas suspension apparatus according to an embodiment of the present application at another angle, and fig. 6 is an enlarged view of a portion C in fig. 5. In some embodiments, referring to fig. 5 and 6, the frame 2 is provided with a connection plate 25, one side of the connection plate 25 in a first direction is connected to the battery pack 11, and the other side is spaced from the frame 2. The connection plate 25 is provided with a plurality of mounting locations 251 arranged at intervals in the second direction, the mounting locations 251 can be connected by connecting members such as screws, bolts and the like as shown in the schematic view of fig. 5, and of course, the mounting locations 251 can also be connected by rivets or welding spots, and the battery pack 11 is connected with the frame 2 through the connection plate 25.

Referring to fig. 6, the tank 31 is disposed at intervals along the connecting plate 25 in the first direction, and the first pipeline 34 is connected to the tank 31 by the interval space between the tank 31 and the connecting plate 25 in the first direction, and in case of breakdown of the tank 31, the interval space can absorb part of collision energy, so as to reduce the risk of the broken tank 31 collapsing the connecting plate 25. The tank body 31 is inserted between two adjacent installation positions 251, and the tank body 31 is connected with the frame 2 by avoiding the installation positions 251, so that the battery pack 11 is uniformly loaded, and the connection stability of the battery pack 11 and the frame 2 is maintained. And the mounting positions 251 are distributed on two sides of the tank body 31 in the second direction, and even if the tank body 31 breaks down, the connecting plate 25 is still uniformly loaded, so that the connection stability of the connecting plate 25 and the frame 2 can be maintained, and the risk that the connecting plate 25 is crushed by the tank body 31 is reduced. Referring to fig. 2, the valve body 32 is disposed at one end of the connection plate 25 in the vertical direction, and the connection plate 25 provides a support position for the valve body 32, facilitating the assembly of the valve body 32.

In some embodiments, referring to fig. 6, the connection plate is provided with a plurality of slots 252, the slots 252 penetrating both end surfaces of the connection plate 25 in the vertical direction, i.e., the slots 252 penetrating both upper and lower end surfaces of the connection plate 25. In the second direction, a slot 252 is disposed between each adjacent mounting position 251, and a valve body 32 is disposed between each adjacent slot 252, which can be understood that the valve body 32 and the tank 31 are disposed in a staggered manner in the first direction and the second direction, so that the interval between the valve body 32 and the tank 31 in the horizontal direction is increased, and the connection of the first pipeline 34 is facilitated. At the same time, the can 31 is displaced from the valve body 32 in the second direction, which also reduces the risk of the can 31 being broken down in the first direction collapsing into the valve body 32.

One end of the tank body 31, which is close to the mounting area 21 in the first direction, extends into the slot 252, the volume of the tank body 31 in the first direction can be used for sliding the sliding rod 33, and one end of the tank body 31 in the first direction extends into the slot 252, so that the volume of the tank body 31 in the first direction is larger, the sliding rod 33 can move in the first direction conveniently, and the flexible buffering effect of the damping assembly 3 is improved.

In some embodiments, referring to fig. 1, the side of the frame 2 remote from the mounting area 21 in the first direction is provided with a plurality of shock absorbers 4, and extends in the vertical direction, that is, the plurality of shock absorbers 4 are each disposed longitudinally outside the frame 2. The shock absorber 4 can buffer and adjust vibration and impact feedback received by the frame 2 in the vertical direction, and meanwhile, the shock absorber 4 can also adjust the height of the vehicle body, so that the vehicle can be compatible with various pavements. It should be noted that the present application is not limited to a specific number of shock absorbers 4, and for example, shock absorbers 4 may be four, five, six, or the like. At least, however, the power assembly 1 is provided with one damper 4 on each side of the first direction, and one damper 4 is also provided on each side of the power assembly 1 in the second direction, that is, at least four dampers 4 are provided and are arranged around the power assembly 1, and the plurality of dampers 4 support the frame 2 in a plurality of positions in the circumferential direction of the power assembly 1 so as to jointly protect the power assembly 1 in the vertical direction, reduce the risk of damage to the power assembly 1, and improve the running stability and safety of the vehicle.

The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention.

Claims (11)

1. A hydro-pneumatic suspension assembly comprising:

The power assembly is used for controlling the power assembly,

A frame provided with a mounting area for mounting at least a part of the power assembly;

The damping assembly comprises a tank body and a valve body; the valve body is positioned in the installation area, the tank body is provided with a sliding rod, one end of the sliding rod protrudes out of the frame in a first direction, and the sliding rod is used for moving relative to the tank body under the action of external force so as to be close to or far from the installation area in the first direction; the pressure of the tank body is used for gradually reducing the movement of the sliding rod in the direction of approaching the installation area, and the valve body is used for controlling the movement of the sliding rod in the first direction; the tank body and the valve body are arranged in a staggered manner in the horizontal direction and at least partially coincide in the vertical direction, and the first direction is in the horizontal direction.

2. The hydro-pneumatic suspension device of claim 1 wherein the mounting region extends in a second direction, the second direction being in the horizontal direction and perpendicular to the first direction; the damping components are arranged in a plurality, and the damping components are arranged at intervals in the second direction.

3. The hydro-pneumatic suspension device of claim 2 wherein the damping assembly comprises a first conduit communicating the canister and the valve body, the hydro-pneumatic suspension device further comprising:

The pump body is provided with a second pipeline which is communicated with a plurality of valve bodies, the pump body is at least electrically connected with the valve bodies on the same side in the first direction, and the valve bodies control the first pipeline to be communicated with or separated from the second pipeline.

4. The hydro-pneumatic suspension device of claim 2 wherein the frame comprises:

a first stringer extending in the second direction;

The second longitudinal beam is opposite to the first longitudinal beam in the first direction and is arranged at intervals, and the mounting area is formed between the first longitudinal beam and the second longitudinal beam;

Wherein the canister extends in the first direction; one end of the tank body in the first direction is connected with the first longitudinal beam, and the valve body is arranged on one side of the first longitudinal beam, close to the installation area, in the first direction; and/or one end of the tank body in the first direction is connected with the second longitudinal beam, and the valve body is arranged on one side, close to the installation area, of the second longitudinal beam in the first direction.

5. The hydro-pneumatic suspension device of claim 4, wherein the first longitudinal beam is provided with a limiting hole therethrough in the first direction and/or the second longitudinal beam is provided with a limiting hole therethrough in the first direction; the tank body is inserted into the limiting hole.

6. The hydro-pneumatic suspension device of claim 4 wherein the valve body extends in the second direction and the valve body is located between two end faces of the first rail in the vertical direction.

7. The hydro-pneumatic suspension device of claim 2 wherein the power assembly comprises a battery pack having at least two sets of the damping assemblies disposed between two sides in the second direction.

8. The hydro-pneumatic suspension device of claim 7 wherein the frame is provided with:

the connecting plate is connected with the battery pack at one side in the first direction, and the other side is arranged at intervals of the frame; the connecting plate is provided with a plurality of mounting positions which are arranged at intervals in the second direction and used for connecting the battery pack and the frame; the tank body is arranged at intervals on the connecting plate in the first direction and is inserted between two adjacent installation positions, and the valve body is connected with one end of the connecting plate in the vertical direction.

9. The hydro-pneumatic suspension device of claim 8 wherein the web is further provided with:

Slotting, penetrating through two end faces of the connecting plate in the vertical direction; in the second direction, a slot is formed between every two adjacent mounting positions, a valve body is arranged between every two adjacent slots, and one end, far away from the sliding rod, of the tank body in the first direction extends into the slot.

10. The hydro-pneumatic suspension device of claim 2 wherein a side of the frame in the first direction away from the mounting area is provided with:

A plurality of dampers extending in the vertical direction; the dampers are arranged at least on two sides of the power assembly in the first direction, and are arranged at least on two sides of the power assembly in the second direction.

11. A vehicle comprising a hydro-pneumatic suspension device according to any one of claims 1 to 10.