Variable automotive pressure storage device and automobile

Abstract

The invention provides a variable automotive pressure storage device and an automobile, and belongs to the technical field of variable automotive pressure storage devices. The variable pressure storage device for the vehicle 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 present invention relates to the technical field of variable vehicle pressure storage devices, and in particular to a variable vehicle pressure storage device and a vehicle. Background Art

[0002] With people's continuous pursuit of automobile comfort, a pressure storage device is designed in the field of automobile chassis technology, especially in the braking system and chassis control system. The device plays an important role in hydraulics and pneumatics, including energy storage, pulsation absorption, impact mitigation, leakage compensation, smooth shifting, emergency power supply, vibration absorption and balancing. At the same time, the device also plays a certain role in working conditions such as vehicle driving on bumpy roads, emergency braking conditions, special driving, air suspension compensation and chassis parameter optimization, effectively improving driving performance.

[0003] The existing automobile pressure storage devices have three design forms: gas type, elastic part type and piston type, and each form has its own advantages and disadvantages. The gas type pressure storage device is generally designed as a bladder structure, but the pressure storage capacity is low and the pressure storage time is short. It is not suitable for long-term energy storage, and the energy storage is very limited. It cannot be used in working conditions with large fluctuations; the energy stored in the elastic part type pressure storage device 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 a high-pressure chamber and a low-pressure chamber. Although the pressure storage capacity is very good, it cannot be changed and adjusted with pressure fluctuations, and it depends entirely on the size of the compression space. In the existing design, the elastic part type and the gas type are more common, but they are both used for automobile chassis with smaller pressure storage capacity. Therefore, how to provide a variable vehicle pressure storage device and a vehicle with a larger pressure storage capacity, a longer pressure storage time and an adjustable pressure storage capacity is one of the technical problems that need to be solved in this field. Summary of the invention

[0004] The object of the present invention is to provide a variable vehicle pressure storage device and a vehicle, wherein the pressure storage device increases the pressure storage capacity, can adjust the pressure storage capacity according to the situation, and can extend the pressure storage time.

[0005] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

[0006] The present invention provides a variable vehicle pressure storage device, which comprises 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 arranged 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 comprises 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 inside of the housing of the pressure storage device into a sealing chamber and a hydraulic chamber; the piston, the sealing ring and the housing together form a sealing chamber, and the sealing 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 a groove that is recessed away from the flow valve is 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 present invention also provides a vehicle comprising the variable vehicle pressure storage device.

[0018] Beneficial effects of the present invention:

[0019] The patent of the present invention is designed with a compressed inert gas chamber (sealed chamber), a piston, a return elastic member, a compression elastic member, a pressure control flow valve body, a shell and accessory parts, wherein the size of the pressure flow valve body can adjust the size of the pressure storage capacity, and can be adjusted in real time according to actual conditions. The sealed chamber ensures that the pressure storage device has a basic pressure storage capacity, and different sizes of inert gas chambers can be matched according to different vehicle chassis; the return elastic member and the compression elastic member can make the piston return quickly, thereby greatly reducing the response time of the pressure storage device; the pressure flow valve body is designed with a flow slot, and the flow size is related to the depth and length of the slot. The flow valve body can be matched according to different vehicles. In addition, when the flow valve is working, it can be rotated 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. This design can fully adapt to the pressure storage requirements of various vehicle chassis, adjust the pressure storage size in real time, and avoid the problem of poor vehicle comfort or slow chassis response due to the size of energy storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the overall structure of the variable vehicle pressure storage device according to embodiments 1 to 3 of the present invention;

[0021] Figure 2 It is a schematic structural diagram of a flow valve of a variable vehicle pressure storage device according to embodiments 1 to 3 of the present invention;

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

[0023] The present invention provides a variable pressure storage device for a vehicle, the variable pressure storage device for a vehicle comprising a housing 1, a piston 2, a sealing ring 7, a sealing cover plate 5, a flow valve body 4,

[0024] The sealing cover plate 5 is arranged at the upper end of the housing 1, and a sealing cover plate center hole 51 is arranged in the middle of the sealing cover plate 5;

[0025] 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 slot 41 and a hydraulic oil inlet and outlet 42;

[0026] 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 sealing chamber 8 and a hydraulic chamber 10; the piston 2, the sealing ring 7 and the housing 1 together form a sealing chamber 8, and the sealing chamber 8 is filled with inert gas.

[0027] 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.

[0028] In the present invention, the sealed cavity 8 ensures that the pressure storage device has a basic pressure storage capacity, and different sizes of inert gas cavities can be matched according to different vehicle chassis.

[0029] In the present invention, a flow slot 41 is designed in the flow valve body 4. The flow rate is related to the depth and length of the flow slot 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 external pressure. The greater the pressure, the faster the rotation, and the smaller the pressure, the slower the rotation.

[0030] 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.

[0031] In the present invention, the inert gas includes nitrogen, helium, neon, argon, krypton, and xenon.

[0032] 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 height of the center hole 51 of the sealing cover plate and the external oil pressure.

[0033] In the present invention, the flow groove 41 is communicated with the hydraulic chamber 10 .

[0034] 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 .

[0035] In the present invention, the lower end of the flow valve body 4 is sleeved with a compression elastic member 6 , 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 3 .

[0036] 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.

[0037] The invention provides a vehicle comprising the variable vehicle pressure storage device.

[0038] The technical solutions provided by the present invention are described in detail below in conjunction with the embodiments, but they should not be construed as limiting the protection scope of the present invention.

[0039] Example 1

[0040] A variable pressure storage device for a vehicle, the variable pressure storage device for a vehicle comprising a housing 1, a piston 2, a sealing ring 7, a sealing cover plate 5, a flow valve body 4,

[0041] The sealing cover plate 5 is arranged at the upper end of the housing 1, and a sealing cover plate center hole 51 is arranged in the middle of the sealing cover plate 5;

[0042] 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 slot 41 and a hydraulic oil inlet and outlet 42;

[0043] 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.

[0044] A sealing plug 9 is provided at the lower end of the shell 1. The sealing plug 9 is used to seal the inert gas in the sealing chamber 8 and form a certain pressure. The storage pressure varies according to different vehicle models.

[0045] The inert gas package is nitrogen.

[0046] 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 .

[0047] 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 center hole 51 of the sealing cover plate and the external oil pressure.

[0048] 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 .

[0049] A compression elastic member 6 is sleeved on the lower end of the flow valve body 4 , and a return elastic member 3 is sleeved on the upper end of the piston 2 . The compression elastic member 6 and the return elastic member 3 are abutted between the flow valve body 4 and the piston 3 .

[0050] 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.

[0051] A vehicle comprising the above variable vehicle pressure storage device.

[0052] Example 2

[0053] A variable pressure storage device for a vehicle, the variable pressure storage device for a vehicle comprising a housing 1, a piston 2, a sealing ring 7, a sealing cover plate 5, a flow valve body 4,

[0054] The sealing cover plate 5 is arranged at the upper end of the housing 1, and a sealing cover plate center hole 51 is arranged in the middle of the sealing cover plate 5;

[0055] 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 slot 41 and a hydraulic oil inlet and outlet 42;

[0056] 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.

[0057] A sealing plug 9 is provided at the lower end of the shell 1. The sealing plug 9 is used to seal the inert gas in the sealing chamber 8 and form a certain pressure. The storage pressure varies according to different vehicle models.

[0058] The inert gas package is helium.

[0059] 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 .

[0060] 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 center hole 51 of the sealing cover plate and the external oil pressure.

[0061] 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 .

[0062] A compression elastic member 6 is sleeved on the lower end of the flow valve body 4 , and a return elastic member 3 is sleeved on the upper end of the piston 2 . The compression elastic member 6 and the return elastic member 3 are abutted between the flow valve body 4 and the piston 3 .

[0063] The sealing cover plate 5 is threadedly connected to the housing 1 , and the sealing plug 9 is threadedly connected to the housing 1 .

[0064] A vehicle comprising the above variable vehicle pressure storage device.

[0065] Example 3

[0066] A variable pressure storage device for a vehicle, the variable pressure storage device for a vehicle comprising a housing 1, a piston 2, a sealing ring 7, a sealing cover plate 5, a flow valve body 4,

[0067] The sealing cover plate 5 is arranged at the upper end of the housing 1, and a sealing cover plate center hole 51 is arranged in the middle of the sealing cover plate 5;

[0068] 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 slot 41 and a hydraulic oil inlet and outlet 42;

[0069] 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.

[0070] A sealing plug 9 is provided at the lower end of the shell 1. The sealing plug 9 is used to seal the inert gas in the sealing chamber 8 and form a certain pressure. The storage pressure varies according to different vehicle models.

[0071] The inert gas package is argon.

[0072] 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 .

[0073] 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 center hole 51 of the sealing cover plate and the external oil pressure.

[0074] 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 .

[0075] A compression elastic member 6 is sleeved on the lower end of the flow valve body 4 , and a return elastic member 3 is sleeved on the upper end of the piston 2 . The compression elastic member 6 and the return elastic member 3 are abutted between the flow valve body 4 and the piston 3 .

[0076] 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.

[0077] A vehicle comprising the above variable vehicle pressure storage device.

[0078] The variable vehicle pressure storage device and the vehicle include the following features:

[0079] 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. In this process, the greater the pressure, the flow valve body can rotate appropriately according to the pressure. While rotating, the inflow of hydraulic oil can be reduced, and the external pressure and the pressure of the sealing cavity 8 can be balanced;

[0080] 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, and 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 a countercurrent, the flow valve will not rotate significantly, which can well compensate for the insufficient external pressure.

[0081] It can be seen from the above embodiments that the present invention provides a variable vehicle pressure storage device and a vehicle. The sealing cavity of the present invention ensures that the pressure storage device has a basic pressure storage capacity, and can match different sizes of inert gas cavities according to different vehicle chassis; the return elastic member and the compression elastic member ensure that the pressure storage device can return quickly, thereby greatly reducing the response time of the pressure storage device; the flow rate of the flow slot is related to the depth and length of the slot, and the flow valve body can be matched according to different vehicles; when the flow valve is working, it can be rotated under the action of pressure according to the size of the external pressure, and the storage pressure size can be adjusted in real time to avoid the problem of poor vehicle comfort or slow chassis response due to the size of the energy storage.

[0082] 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 principle of the present invention. These improvements and modifications should also be regarded as 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) comprises 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 inside of the housing (1) of the pressure storage device into a sealing chamber (8) and a hydraulic chamber (10); the piston (2), the sealing ring (7) and the housing (1) together form a sealing chamber (8), and the sealing chamber (8) is filled with an inert gas.

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

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

7. The variable vehicle pressure storage device according to claim 6, characterized in that: The flow valve body (4 ) The lower end is provided with a compression elastic member (6 ) , the piston (2 ) The upper end 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 (3).

8. The variable vehicle pressure storage device according to claim 6 or 7, 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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