Variable automotive pressure storage device and automobile

Abstract

The utility model belongs to the technical field of variable vehicle pressure storage devices, and provides a variable vehicle pressure storage device and an automobile. The utility model discloses a variable pressure storage device for a vehicle. The variable pressure storage device comprises a shell, a piston, a sealing ring, a sealing cover plate and a flow valve body, the sealing cavity guarantees that the pressure storage device has basic pressure storage capacity, and inert gas cavities of different sizes can be matched according to different vehicle chassis; the return elastic piece and the compression elastic piece can enable the piston to quickly return, so that the response time of the pressure storage device is greatly shortened; the flow of the flow groove is related to the depth and length of the groove, and the flow valve body can be matched according to different vehicles; the flow valve can rotate under the action of pressure according to the external pressure during working, the stored pressure is adjusted in real time, and the problem that the whole vehicle is poor in comfort or the chassis is slow in response due to the stored energy is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of variable vehicle pressure storage devices, in particular to a variable vehicle pressure storage device and a vehicle. Background Art

[0002] With the ever-increasing pursuit of automotive comfort, a pressure accumulator device has been designed in the field of automotive chassis technology, particularly in braking systems and chassis control systems. This device plays an important role in hydraulics and pneumatics, including energy storage, pulsation absorption, shock mitigation, leakage compensation, smooth shifting, emergency power supply, vibration absorption, and balancing. Furthermore, this device plays a role in operating conditions such as bumpy road conditions, emergency braking, special driving conditions, air suspension compensation, and chassis parameter optimization, effectively improving driving performance.

[0003] Existing automotive pressure storage devices have three design types: gas type, elastic part type, and piston type, each with its own advantages and disadvantages. Gas-type pressure storage devices are generally designed as a bladder structure, but their pressure storage capacity is low and the pressure storage time is short, making them unsuitable for long-term energy storage. The energy storage is very limited and cannot be used in working conditions with large fluctuations. The energy stored in elastic part-type pressure storage devices depends on the potential energy of the elastic part and cannot be adjusted according to actual conditions. The piston energy storage structure is generally designed with high-pressure and low-pressure chambers. Although the pressure storage capacity is very good, it cannot change and adjust with pressure fluctuations and is completely dependent on the size of the compression space. In existing designs, elastic part and gas types are more common, but both are used for automotive chassis with relatively small pressure storage capacity. Therefore, how to provide a variable automotive pressure storage device and automobile with a large pressure storage capacity, a long pressure storage time, and an adjustable pressure storage capacity is one of the technical problems that urgently need to be solved in this field. Utility Model Content

[0004] The purpose of the utility model is to provide a variable vehicle pressure storage device and a vehicle with large pressure storage capacity, long pressure storage time and adjustable pressure storage capacity.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A variable pressure storage device for a vehicle, comprising a housing, a piston, a sealing ring, a sealing cover plate, and a flow valve body.

[0007] The sealing cover plate is arranged at the upper end of the housing, and a sealing cover plate center hole is provided in the middle of the sealing cover plate;

[0008] The flow valve body is arranged at the lower end of the sealing cover plate, and the flow valve body includes a flow groove and a hydraulic oil inlet and outlet;

[0009] The piston is movably arranged inside the housing of the pressure storage device, and the piston divides the interior of the housing of the pressure storage device into a sealed chamber and a hydraulic chamber; the piston, the sealing ring and the housing together form a sealed chamber, and the sealed chamber is filled with inert gas.

[0010] Furthermore, a sealing plug is provided at the lower end of the shell, and the sealing plug is used to seal the inert gas in the sealing cavity.

[0011] Furthermore, the inert gas includes nitrogen, helium, neon, argon, krypton, and xenon.

[0012] Furthermore, the central hole of the sealing cover plate is connected to an external high-pressure oil pipe, the central hole of the sealing cover plate is communicated with a hydraulic oil inlet and outlet, and the hydraulic oil inlet and outlet are communicated with a flow groove.

[0013] Furthermore, the flow groove is communicated with the hydraulic chamber.

[0014] Furthermore, the flow valve body is a T-shaped structure, and grooves that are recessed away from the flow valve are formed in the middle and on both sides of the upper end of the piston.

[0015] Furthermore, a compression elastic member is sleeved on the lower end of the flow valve body, and a return elastic member is sleeved on the upper end of the piston. The compression elastic member and the return elastic member are abutted between the flow valve body and the piston.

[0016] Furthermore, the sealing cover plate is connected to the housing by threads or welding, and the sealing plug 9 is connected to the housing by threads or welding.

[0017] The utility model also provides a vehicle comprising the variable vehicle pressure storage device.

[0018] Compared with the prior art, the utility model has achieved the following technical effects:

[0019] This utility model patent includes a sealed chamber, a piston, a return elastic member, a compression elastic member, a pressure control flow valve body, a housing, and accessory components. The size of the pressure flow valve body can adjust the pressure storage capacity and can be adjusted in real time according to actual conditions. The inert gas chamber (sealed chamber) ensures the basic pressure storage capacity of the pressure storage device, and different sizes of inert gas chambers can be matched to different vehicle chassis. The return elastic member and the compression elastic member can quickly return the piston, thereby greatly reducing the response time of the pressure storage device. The pressure flow valve body is designed with a flow groove. The flow rate is related to the depth and length of the groove. The flow valve body can be matched to different vehicles. In addition, when the flow valve is in operation, it can rotate under the action of pressure based on the external pressure. The greater the pressure, the faster the rotation, and the lower the pressure, the slower the rotation. This design can fully adapt to the pressure storage requirements of various vehicle chassis, adjust the storage pressure in real time, and avoid problems such as poor vehicle comfort or slow chassis response caused by the storage capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the overall structure of the variable vehicle pressure storage device of Examples 1 to 3 of the present utility model;

[0021] Figure 2 Schematic diagram of the structure of the flow valve of the variable vehicle pressure storage device of Examples 1 to 3 of the present utility model;

[0022] In the figure: 1-housing, 2-piston, 3-return spring, 4-flow valve body, 41-flow groove, 42-hydraulic oil inlet and outlet, 5-sealing cover, 51-sealing cover center hole, 6-compression spring, 7-sealing ring, 8-sealing chamber, 9-sealing plug, 10-hydraulic chamber. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] The utility model provides a variable vehicle pressure storage device, which includes a housing 1, a piston 2, a sealing ring 7, a sealing cover plate 5, and a flow valve body 4.

[0025] The sealing cover plate 5 is arranged at the upper end of the housing 1, and a sealing cover plate center hole 51 is provided in the middle of the sealing cover plate 5;

[0026] The flow valve body 4 is arranged at the lower end of the sealing cover plate 5, and the flow valve body 4 includes a flow groove 41 and a hydraulic oil inlet and outlet 42;

[0027] The piston 2 is movably arranged inside the pressure storage device housing 1, and the piston 2 divides the inside of the pressure storage device housing 1 into a sealed chamber 8 and a hydraulic chamber 10; the piston 2, the sealing ring 7 and the housing 1 together form a sealed chamber 8, and the sealed chamber 8 is filled with inert gas.

[0028] In the present invention, the size of the flow valve body 4 can adjust the size of the pressure storage capacity and can be adjusted in real time according to actual conditions.

[0029] In the present invention, the sealed cavity 8 ensures that the pressure storage device has a basic pressure storage capacity, and can be matched with inert gas cavities of different sizes according to different vehicle chassis.

[0030] In the present utility model, a flow groove 41 is designed in the flow valve body 4. The flow rate is related to the depth and length of the flow groove 41. The flow valve body 4 can be matched according to different vehicles. When working, the flow valve body 4 can rotate under the action of pressure according to the size of the external pressure. The greater the pressure, the faster the rotation, and the smaller the pressure, the slower the rotation.

[0031] In the present invention, a sealing plug 9 is provided at the lower end of the shell 1, and the sealing plug 9 is used to seal the inert gas in the sealing cavity 8 and form a certain pressure. The storage pressure varies according to different vehicle models.

[0032] In the present invention, the inert gas includes nitrogen, helium, neon, argon, krypton, and xenon.

[0033] In the present invention, the center hole 51 of the sealing cover plate is connected to the external high-pressure oil pipe, the center hole 51 of the sealing cover plate is communicated with the hydraulic oil inlet and outlet 42, and the hydraulic oil inlet and outlet 42 is communicated with the flow groove 41; the high-pressure oil enters the hydraulic oil inlet and outlet 42 from the center hole 51 of the sealing cover plate, enters the sealed flow valve body 4 through the hydraulic oil inlet and outlet 42, and flows into the hydraulic chamber 10 through the flow groove 41 of the flow valve body 4. The oil pressure in the hydraulic chamber 10 determines the forward and backward movement of the piston 2, thereby balancing the high and low oil pressures of the center hole 51 of the sealing cover plate and the external oil pressure.

[0034] In the present invention, the flow groove 41 is communicated with the hydraulic chamber 10 .

[0035] In the present invention, the flow valve body 4 is a T-shaped structure, and grooves that are recessed away from the flow valve 4 are formed in the middle and both sides of the upper end of the piston 2 .

[0036] In the present invention, the lower end of the flow valve body 4 is sleeved with a compression elastic member 6, and the upper end of the piston 2 is sleeved with a return elastic member 3. The compression elastic member 6 and the return elastic member 3 are abutted between the flow valve body 4 and the piston 3.

[0037] In the present invention, the sealing cover plate 5 is connected to the housing 1 by threads or welding, and the sealing plug 9 is connected to the housing 1 by threads or welding.

[0038] The utility model provides a vehicle comprising the variable vehicle pressure storage device.

[0039] The technical solutions provided by the present invention are described in detail below in conjunction with the embodiments, but they should not be understood as limiting the scope of protection of the present invention.

[0040] Example 1

[0041] A variable vehicle pressure storage device includes a housing 1, a piston 2, a sealing ring 7, a sealing cover plate 5, and a flow valve body 4.

[0042] The sealing cover plate 5 is arranged at the upper end of the housing 1, and a sealing cover plate center hole 51 is provided in the middle of the sealing cover plate 5;

[0043] The flow valve body 4 is arranged at the lower end of the sealing cover plate 5, and the flow valve body 4 includes a flow groove 41 and a hydraulic oil inlet and outlet 42;

[0044] The piston 2 is movably arranged inside the pressure storage device housing 1, and the piston 2 divides the interior of the pressure storage device housing 1 into a sealed chamber 8 and a hydraulic chamber 10; the piston 2, the sealing ring 7 and the housing 1 together form a sealed chamber 8, and the sealed chamber 8 is filled with inert gas.

[0045] A sealing plug 9 is provided at the lower end of the housing 1 , which is used to seal the inert gas in the sealing chamber 8 and form a certain pressure. The storage pressure varies depending on the vehicle model.

[0046] The inert gas package is nitrogen.

[0047] The central hole 51 of the sealing cover plate is connected to the external high-pressure oil pipe, the central hole 51 of the sealing cover plate is communicated with the hydraulic oil inlet and outlet 42, the hydraulic oil inlet and outlet 42 is communicated with the flow groove 41, and the flow groove 41 is communicated with the hydraulic chamber 10.

[0048] High-pressure oil enters the hydraulic oil inlet and outlet 42 from the center hole 51 of the sealing cover plate, enters the sealed flow valve body 4 through the hydraulic oil inlet and outlet 42, and flows into the hydraulic chamber 10 through the flow groove 41 of the flow valve body 4. The oil pressure in the hydraulic chamber 10 determines the forward and backward movement of the piston 2, thereby balancing the high and low oil pressures in the center hole 51 of the sealing cover plate and the external oil pressure.

[0049] The flow valve body 4 is a T-shaped structure, and grooves that are recessed away from the flow valve 4 are formed in the middle and both sides of the upper end of the piston 2.

[0050] The lower end of the flow valve body 4 is sleeved with a compression elastic member 6 , and the upper end of the piston 2 is sleeved with a return elastic member 3 . The compression elastic member 6 and the return elastic member 3 are abutted between the flow valve body 4 and the piston 3 .

[0051] The sealing cover plate 5 is connected to the housing 1 by welding, and the sealing plug 9 is connected to the housing 1 by threading.

[0052] A vehicle comprising the variable vehicle pressure storage device.

[0053] Example 2

[0054] A variable vehicle pressure storage device includes a housing 1, a piston 2, a sealing ring 7, a sealing cover plate 5, and a flow valve body 4.

[0055] The sealing cover plate 5 is arranged at the upper end of the housing 1, and a sealing cover plate center hole 51 is provided in the middle of the sealing cover plate 5;

[0056] The flow valve body 4 is arranged at the lower end of the sealing cover plate 5, and the flow valve body 4 includes a flow groove 41 and a hydraulic oil inlet and outlet 42;

[0057] The piston 2 is movably arranged inside the pressure storage device housing 1, and the piston 2 divides the interior of the pressure storage device housing 1 into a sealed chamber 8 and a hydraulic chamber 10; the piston 2, the sealing ring 7 and the housing 1 together form a sealed chamber 8, and the sealed chamber 8 is filled with inert gas.

[0058] A sealing plug 9 is provided at the lower end of the housing 1 , which is used to seal the inert gas in the sealing chamber 8 and form a certain pressure. The storage pressure varies depending on the vehicle model.

[0059] The inert gas package is helium.

[0060] The central hole 51 of the sealing cover plate is connected to the external high-pressure oil pipe, the central hole 51 of the sealing cover plate is communicated with the hydraulic oil inlet and outlet 42, the hydraulic oil inlet and outlet 42 is communicated with the flow groove 41, and the flow groove 41 is communicated with the hydraulic chamber 10.

[0061] High-pressure oil enters the hydraulic oil inlet and outlet 42 from the center hole 51 of the sealing cover plate, enters the sealed flow valve body 4 through the hydraulic oil inlet and outlet 42, and flows into the hydraulic chamber 10 through the flow groove 41 of the flow valve body 4. The oil pressure in the hydraulic chamber 10 determines the forward and backward movement of the piston 2, thereby balancing the high and low oil pressures in the center hole 51 of the sealing cover plate and the external oil pressure.

[0062] The flow valve body 4 is a T-shaped structure, and grooves that are recessed away from the flow valve 4 are formed in the middle and both sides of the upper end of the piston 2.

[0063] The lower end of the flow valve body 4 is sleeved with a compression elastic member 6 , and the upper end of the piston 2 is sleeved with a return elastic member 3 . The compression elastic member 6 and the return elastic member 3 are abutted between the flow valve body 4 and the piston 3 .

[0064] The sealing cover plate 5 is threadedly connected to the housing 1 , and the sealing plug 9 is threadedly connected to the housing 1 .

[0065] A vehicle comprising the variable vehicle pressure storage device.

[0066] Example 3

[0067] A variable vehicle pressure storage device includes a housing 1, a piston 2, a sealing ring 7, a sealing cover plate 5, and a flow valve body 4.

[0068] The sealing cover plate 5 is arranged at the upper end of the housing 1, and a sealing cover plate center hole 51 is provided in the middle of the sealing cover plate 5;

[0069] The flow valve body 4 is arranged at the lower end of the sealing cover plate 5, and the flow valve body 4 includes a flow groove 41 and a hydraulic oil inlet and outlet 42;

[0070] The piston 2 is movably arranged inside the pressure storage device housing 1, and the piston 2 divides the interior of the pressure storage device housing 1 into a sealed chamber 8 and a hydraulic chamber 10; the piston 2, the sealing ring 7 and the housing 1 together form a sealed chamber 8, and the sealed chamber 8 is filled with inert gas.

[0071] A sealing plug 9 is provided at the lower end of the housing 1 , which is used to seal the inert gas in the sealing chamber 8 and form a certain pressure. The storage pressure varies depending on the vehicle model.

[0072] The inert gas package is argon.

[0073] The central hole 51 of the sealing cover plate is connected to the external high-pressure oil pipe, the central hole 51 of the sealing cover plate is communicated with the hydraulic oil inlet and outlet 42, the hydraulic oil inlet and outlet 42 is communicated with the flow groove 41, and the flow groove 41 is communicated with the hydraulic chamber 10.

[0074] High-pressure oil enters the hydraulic oil inlet and outlet 42 from the center hole 51 of the sealing cover plate, enters the sealed flow valve body 4 through the hydraulic oil inlet and outlet 42, and flows into the hydraulic chamber 10 through the flow groove 41 of the flow valve body 4. The oil pressure in the hydraulic chamber 10 determines the forward and backward movement of the piston 2, thereby balancing the high and low oil pressures in the center hole 51 of the sealing cover plate and the external oil pressure.

[0075] The flow valve body 4 is a T-shaped structure, and grooves that are recessed away from the flow valve 4 are formed in the middle and both sides of the upper end of the piston 2.

[0076] The lower end of the flow valve body 4 is sleeved with a compression elastic member 6 , and the upper end of the piston 2 is sleeved with a return elastic member 3 . The compression elastic member 6 and the return elastic member 3 are abutted between the flow valve body 4 and the piston 3 .

[0077] The sealing cover plate 5 is connected to the housing 1 by welding, and the sealing plug 9 is connected to the housing 1 by welding.

[0078] A vehicle comprising the variable vehicle pressure storage device.

[0079] The variable vehicle pressure storage device and vehicle include the following features:

[0080] When the external pressure is high, the external pressure needs to be stored in the pressure storage device. The external pressure enters the hydraulic oil inlet and outlet 42 through the central hole 51 of the sealing cover plate and flows into the flow groove 41. During this process, the flow valve body rotates appropriately according to the pressure, and the flow of hydraulic oil is reduced during rotation, thereby balancing the external pressure and the pressure of the sealing cavity 8.

[0081] When the outside world needs to compensate for the pressure, the pressure in the sealed cavity 8 is greater than that in the outside world. The hydraulic oil can pass through the flow groove 41 in the sealed cavity 8, enter the hydraulic oil inlet and outlet 42, and reach the center hole 51 of the sealing cover plate until it is connected to the outside world, thereby replenishing the pressure. However, in the process, since the hydraulic oil is in reverse flow, the flow valve will not rotate significantly, which can well compensate for the lack of external pressure.

[0082] As can be seen from the above embodiments, the present invention provides a variable vehicle pressure storage device and vehicle. The sealed chamber of the present invention ensures the pressure storage device has a basic pressure storage capacity, and can be matched with inert gas chambers of different sizes according to different vehicle chassis. The return elastic member and the compression elastic member ensure that the pressure storage device can quickly return to its original position, thereby greatly reducing the response time of the pressure storage device. The flow rate of the flow groove is related to the depth and length of the groove, and the flow valve body can be matched to different vehicles. During operation, the flow valve can rotate under the action of external pressure, adjusting the storage pressure in real time, avoiding problems such as poor vehicle comfort or slow chassis response caused by the storage capacity.

[0083] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A variable pressure storage device for a vehicle, characterized in that: The variable vehicle pressure storage device comprises a housing (1), a piston (2), a sealing ring (7), a sealing cover plate (5) and a flow valve body (4). The sealing cover plate (5) is arranged at the upper end of the housing (1), and a sealing cover plate center hole (51) is provided in the middle of the sealing cover plate (5); The flow valve body (4) is arranged at the lower end of the sealing cover plate (5), and the flow valve body (4) includes a flow groove (41) and a hydraulic oil inlet and outlet (42); The piston (2) is movably arranged inside the housing (1) of the pressure storage device, and the piston (2) divides the interior of the housing (1) of the pressure storage device into a sealed chamber (8) and a hydraulic chamber (10); the piston (2), the sealing ring (7) and the housing (1) together form a sealed chamber (8), and the sealed chamber (8) is filled with an inert gas.

2. The variable vehicle pressure accumulator device according to claim 1, characterized in that: A sealing plug (9) is provided at the lower end of the shell (1), and the sealing plug (9) is used to seal the inert gas in the sealing cavity (8).

3. The variable vehicle pressure accumulator device according to claim 1 or 2, characterized in that: The inert gas includes nitrogen, helium, neon, argon, krypton and xenon.

4. The variable vehicle pressure accumulator device according to claim 3, characterized in that: The central hole (51) of the sealing cover plate is connected to an external high-pressure oil pipe, the central hole (51) of the sealing cover plate is in communication with a hydraulic oil inlet and outlet (42), and the hydraulic oil inlet and outlet (42) is in communication with a flow groove (41).

5. The variable vehicle pressure accumulator device according to claim 1, characterized in that: The flow groove (41) is communicated with the hydraulic chamber (10).

6. The variable vehicle pressure accumulator device according to claim 1, characterized in that: The flow valve body (4) is a T-shaped structure, and grooves that are recessed away from the flow valve body (4) are formed in the middle and on both sides of the upper end of the piston (2).

7. The variable vehicle pressure accumulator device according to claim 6, characterized in that: The lower end of the flow valve body (4) is sleeved with a compression elastic member (6), and the upper end of the piston (2) is sleeved with a return elastic member (3), and the compression elastic member (6) and the return elastic member (3) are abutted between the flow valve body (4) and the piston (2).

8. The variable vehicle pressure accumulator device according to claim 2, characterized in that: The sealing cover plate (5) is connected to the housing (1) by threads or welding, and the sealing plug (9) is connected to the housing (1) by threads or welding.

9. A vehicle comprising the variable vehicle pressure storage device according to any one of claims 1 to 8.

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