Valve structure and vehicle

Abstract

The invention relates to a valve structure and a vehicle, the valve structure comprises a valve body, a sealing assembly and a driving assembly, the valve body comprises a first channel, the sealing assembly comprises a first sealing piece and a second sealing piece, the first sealing piece is movably arranged in the valve body and comprises a second channel, and the second sealing piece is movably arranged in the valve body and has a first position and a second position; when the second sealing piece is located at the first position, the second sealing piece allows the fluid medium to flow into the first channel from the second channel, and when the second sealing piece is located at the second position, the second sealing piece limits the fluid medium from flowing into the first channel from the second channel. The driving assembly comprises a first driving piece, and the first driving piece is connected with the second sealing piece and used for driving the second sealing piece to be switched from the second position to the first position. The size of the end, close to the first channel, of the second channel in the radial direction of the valve body is larger than that of the end, away from the first channel, of the second channel in the radial direction of the valve body, so that power consumption of the valve body in the using process is reduced.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a valve structure and a vehicle. Background Art

[0002] In the related art, during the opening process of an electrically controlled valve body, since the inlet pressure of the valve body is higher than the outlet pressure of the valve body, the valve body needs to overcome a large back pressure to allow conduction between the inlet and outlet of the valve body, thereby increasing the power consumption of the valve body. Summary of the invention

[0003] The embodiments of the present application provide a valve structure and a vehicle, which reduce the power consumption of the valve body during use, so as to at least partially solve the above-mentioned technical problems.

[0004] In order to achieve the above object, according to a first aspect of the present application, a valve structure is provided, comprising:

[0005] a valve body including a first passage;

[0006] A sealing assembly, comprising a first sealing member and a second sealing member, wherein the first sealing member is movably disposed in the valve body and comprises a second passage, and the second sealing member is movably disposed in the valve body and has a first position and a second position;

[0007] When the second sealing member is in the first position, the second sealing member allows the fluid medium to flow from the second channel into the first channel, and when the second sealing member is in the second position, the second sealing member restricts the fluid medium from flowing from the second channel into the first channel;

[0008] A driving assembly, comprising a first driving member, the first driving member is connected to the second sealing member and is used to drive the second sealing member to switch from the second position to the first position;

[0009] The radial dimension of the valve body at one end of the second channel close to the first channel is greater than the radial dimension of the valve body at one end of the second channel away from the first channel.

[0010] In some embodiments, a radial dimension of the second passage of the valve body gradually increases from an end close to the first passage to an end far away from the first passage.

[0011] In some embodiments, the radial dimension of the second channel at one end close to the first channel in the valve body is L1, and the radial dimension of the second channel at one end away from the first channel in the valve body is L2; ​​wherein L1 and L2 satisfy: 0.4≤L2 / L1≤0.6.

[0012] In some embodiments, in the axial direction of the valve body, a vertical distance from one end to the other end of the first channel is L3; wherein L3 satisfies: 0.6 mm ≤ L3 ≤ 1.0 mm.

[0013] In some embodiments, the valve body includes a valve seat, and the first passage is disposed in the valve seat;

[0014] The first seal has a third position and a fourth position;

[0015] When the first sealing member is in the third position, the first sealing member contacts the valve seat, and there is no gap between the first sealing member and the valve seat;

[0016] When the first sealing member is in the fourth position, the first sealing member is separated from the valve seat, and a gap is provided between the first sealing member and the valve seat to allow the fluid medium to enter the second channel.

[0017] In some embodiments, when the first seal is in the third position and the second seal is in the second position, the first seal abuts against the valve seat, the second seal seals the second channel at one end away from the first driving member 51, and the first seal cooperates with the second seal to seal the first channel.

[0018] In some embodiments, the first driving member is connected to the second sealing member and is used to drive the second sealing member to switch between the first position and the second position.

[0019] In some embodiments, the drive assembly further includes a second drive member connected to the first seal member and configured to drive the first seal member to switch between the third position and the fourth position.

[0020] In some embodiments, the second driving member is an elastic component;

[0021] When the first sealing member is in the third position, the second driving member is in the first compression state;

[0022] When the first sealing member is in the fourth position, the second driving member is in the second compression state;

[0023] Wherein, the compression amount of the second driving member when it is in the first compression state is greater than the compression amount of the second driving member when it is in the second compression state.

[0024] In some embodiments, the second driving member comprises:

[0025] A first elastic member, the first elastic member is sleeved on the outer peripheral wall of the valve seat; and

[0026] A supporting member, one end of which is connected to one end of the first elastic member;

[0027] The supporting member includes a step portion facing away from the first elastic member, and the first sealing member is located in the step portion.

[0028] In some embodiments, the first driving member includes:

[0029] an electromagnetic coil assembly, disposed on the valve body; and

[0030] The magnet is drivingly connected to the electromagnetic coil assembly and connected to the second sealing member.

[0031] In some embodiments, the first driving member further includes a second elastic member, which is disposed between the electromagnetic coil assembly and the magnet to drive the second sealing member to move from the first position to the second position.

[0032] In some embodiments, the first seal further comprises at least one third channel;

[0033] When the second seal is in the second position, at least part of the second seal is located in the first seal and blocks the connection between the second channel and the third channel; when the second seal is in the first position, the second channel and the third channel are connected.

[0034] In some embodiments, the first sealing member further includes a receiving cavity, and the receiving cavity is connected to the third channel and the second channel respectively;

[0035] Wherein, when the second sealing member is in the second position, at least a portion of the second sealing member is located in the receiving cavity.

[0036] In some embodiments, the valve body further comprises an installation cavity, and the first sealing member and the second sealing member are both movably disposed in the installation cavity;

[0037] When the second sealing member is in the first position, the installation cavity is communicated with the second channel.

[0038] In some embodiments, the valve body is further provided with at least one through hole, which communicates with the installation cavity and the external environment.

[0039] In some embodiments, the valve body further comprises:

[0040] A housing, wherein the through hole is disposed on the housing and the mounting cavity is disposed in the housing; and

[0041] The valve seat is connected to the shell, and the first channel is arranged on the valve seat.

[0042] According to a second aspect of the present application, a vehicle is provided, comprising a valve structure.

[0043] In the valve structure of the embodiment of the present application, the valve structure includes a valve body, a sealing assembly and a driving assembly, the valve body includes a first channel, the sealing assembly includes a first sealing member and a second sealing member, the first sealing member is movably arranged in the valve body and includes a second channel, the second sealing member is movably arranged in the valve body and has a first position and a second position, when the second sealing member is in the first position, the second sealing member allows the fluid medium to flow from the second channel into the first channel, and when the second sealing member is in the second position, the second sealing member restricts the fluid medium from flowing from the second channel into the first channel; the driving assembly includes a first driving member, the first driving member is connected to the second sealing member and is used to drive the second sealing member to switch from the second position to the first position; wherein, the radial dimension of the end of the second channel close to the first channel in the valve body is greater than the radial dimension of the end of the second channel away from the first channel in the valve body; in this embodiment, by providing the first sealing member and the second sealing member movably arranged in the valve body, when the valve structure is in a closed state, the second sealing member is in the second position to restrict the flow of fluid medium from the second channel into the first channel. When the control valve structure needs to be switched to the open state, the first driving member drives the second sealing member to switch from the second position to the first position, so that the fluid medium can flow from the second channel into the first channel. When the fluid medium in the high-pressure state enters the low-pressure first channel through the second channel, a certain reverse thrust will be provided to the first sealing member. Since the radial dimension of the end of the second channel close to the first channel is larger than the radial dimension of the end of the second channel away from the first channel, a greater reverse thrust can be provided to the first sealing member when the fluid medium passes through the second channel, so that the first sealing member can move under the reverse thrust of the fluid medium. Therefore, in this embodiment, through the structural design of the second channel, during the valve opening process of the valve structure, the first driving member only needs to drive the second sealing member to move. Under the action of the reverse thrust generated when the fluid medium passes through the second channel, the first sealing member can move until the valve structure is in the open state, thereby reducing the power consumption required for the valve structure to be opened.

[0044] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0046] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same figure numbers represent the same parts in the following description.

[0047] Figure 1 is a cross-sectional schematic diagram of a valve structure provided in an exemplary embodiment of the present application;

[0048] Figure 2 is a cross-sectional schematic diagram of a first sealing member provided in an exemplary embodiment of the present application;

[0049] Figure 3 It is a structural schematic diagram of the valve structure provided in the exemplary embodiment of the present application being assembled on the base;

[0050] Figure 4 is a schematic structural diagram of a supporting member provided in an exemplary embodiment of the present application;

[0051] Figure 5 is a cross-sectional schematic diagram of a supporting member provided in an exemplary embodiment of the present application;

[0052] Figure 6 is a schematic structural diagram of a first sealing member provided in an exemplary embodiment of the present application;

[0053] Figure 7 is a cross-sectional schematic diagram of the valve seat and the housing after being assembled in the exemplary embodiment of the present application;

[0054] Figure 8 Schematic diagram of the valve structure provided in the exemplary embodiment of the present application.

[0055] Description of reference numerals:

[0056] 1. Valve body; 11. Valve seat; 12. Shell; 2. First channel; 3. Sealing assembly; 31. First sealing member; 32. Second sealing member; 41. Second channel; 42. Third channel; 5. Driving assembly; 51. First driving member; 511. Electromagnetic coil assembly; 5111. Electromagnetic coil; 5112. Driving magnet; 512. Magnet; 513. Second elastic member; 52. Second driving member; 521. First elastic member; 522. Supporting member; 6. Accommodating cavity; 7. Step portion; 8. Through hole; 9. Mounting cavity; 10. Through hole; 13. Base; 14. Fourth channel; 15. Fifth channel; 16. Fixed seat. DETAILED DESCRIPTION

[0057] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0058] The present application proposes a valve structure. Figures 1 to 8 These are some embodiments of the present application.

[0059] See also Figure 1 to Figure 2 In some embodiments of the present application, the valve body 1 includes a first channel 2, and the first channel 2 can allow a fluid medium to pass through the valve body 1; the fluid medium can be a gas or a liquid, which is not limited here.

[0060] Among them, the valve structure can be applied to the vehicle's thermal management system, drive system, suspension system, etc., without limitation here.

[0061] In some embodiments of the present application, the valve structure also includes a sealing assembly 3, the sealing assembly 3 includes a first sealing member 31 and a second sealing member 32, the first sealing member 31 is movably disposed in the valve body 1 and includes a second channel 41, and the second sealing member 32 is movably disposed in the valve body 1 and has a first position and a second position; wherein, when the second sealing member 32 is in the first position, the second sealing member 32 allows the fluid medium to flow from the second channel 41 into the first channel 2, and when the second sealing member 32 is in the second position, the second sealing member 32 restricts the fluid medium from flowing from the second channel 41 into the first channel 2; that is, in this embodiment, when the second sealing member 32 is in the first position, the valve structure is in a pre-opening state, the fluid medium can flow from the second channel 41 into the first channel 2, and the valve body 1 is internally conductive; when the second sealing member 32 is in the second position, the valve structure is in a closed state, the fluid medium cannot flow from the second channel 41 into the first channel 2, and the valve body 1 is internally conductive.

[0062] Among them, since the first sealing member 31 can be movably arranged in the valve body 1, when the valve structure is in a pre-opening state, when the fluid medium flows from the second channel 41 into the first channel 2, the fluid medium can also apply a certain reverse thrust to the first sealing member 31, thereby making the first sealing member 31 move in the valve body 1. At this time, the valve structure is in an open state.

[0063] It should be noted that the first channel 2 is connected to the output end of the valve body 1, and the second channel 41 is connected to the input end of the valve body 1, and the input end of the valve body 1 is in a high-pressure environment. When the valve body 1 is in a closed state, the fluid medium at the input end of the valve body 1 is also in a high-pressure state; the output end of the valve body 1 is in a low-pressure environment.

[0064] In some embodiments of the present application, the valve structure also includes a drive assembly 5, the drive assembly 5 includes a first drive member 51, the first drive member 51 is connected to the second seal 32, and the first drive member 51 is used to drive the second seal 32 to switch from the second position to the first position; that is, in the embodiment, the first drive member 51 can control the valve structure to switch from a closed state to a pre-open state, and when the valve structure is in the pre-open state, the fluid medium can also apply a certain reverse thrust to the first seal 31, thereby causing the first seal 31 to move in the valve body 1 until the valve structure is in an open state.

[0065] Among them, the radial dimension of the end of the second channel 41 close to the first channel 2 in the radial direction of the valve body 1 is larger than the radial dimension of the end of the second channel 41 away from the first channel 2 in the radial direction of the valve body 1; such a configuration allows the fluid medium to flow from the second channel 41 toward the first channel 2. Due to the increase in the cross-sectional area of ​​the second channel 41, the fluid medium is accelerated when passing through the second channel 41, and then when the fluid medium enters the first channel 2 from the second channel 41, it can provide a greater reverse thrust for the first seal 31, thereby driving the first seal 31 to move.

[0066] In the technical solution of the present application, a first sealing member 31 and a second sealing member 32 are movably arranged in the valve body 1. When the valve structure is in a closed state, the second sealing member 32 is in a second position to limit the conduction of the internal channel of the valve body 1. When it is necessary to control the valve structure to switch to an open state, the first driving member 51 drives the second sealing member 32 to switch from the second position to the first position, so that the fluid medium can flow from the second channel 41 into the first channel 2. When the fluid medium in a high-pressure state enters the low-pressure first channel 2 through the second channel 41, a certain reverse thrust is provided to the first sealing member 31. Since one end of the second channel 41 close to the first channel 2 is in the valve The structural feature that the radial dimension of the valve body 1 is larger than the radial dimension of the end of the second channel 41 away from the first channel 2 can provide a larger reverse thrust for the first seal 31 when the fluid medium passes through the second channel 41, so that the first seal 31 can move under the reverse thrust of the fluid medium; therefore, in this embodiment, through the structural design of the second channel 41, during the valve opening process of the valve structure, the first driving member 51 only needs to drive the second seal 32 to move, and the first seal 31 can move under the action of the reverse thrust generated when the fluid medium passes through the second channel 41 until the valve structure is in an open state, thereby reducing the power consumption required for the valve structure to be opened.

[0067] It should be noted that, since the valve structure needs to control the first sealing member 31 and the second sealing member 32 to move at the same time and remain in the set position when the valve structure is opened, the valve structure can always be in the open state. If the second sealing member 32 remains in the first position when the valve structure is opened, if the first driving member 51 drives the first sealing member 31 and the second sealing member 32 to move at the same time to adjust the valve structure to the open state, the power consumption of the valve structure when it is in the open state will be significantly increased. In the embodiment of the present application, the first driving member 51 only needs to drive the second sealing member 32 to move when the valve structure is in the open state to reduce the power consumption of the valve structure.

[0068] In some embodiments of the present application, the first driving member 51 drives the second sealing member 32 to move by electric driving.

[0069] In addition, since the second seal 32 limits the flow of the fluid medium from the second channel 41 into the first channel 2 when the second seal 32 is in the second position, at this time, the position of the second seal is not restricted. For example, in one embodiment of the present application, the second seal 32 is located in the second channel 41 to separate the second channel 41; in another embodiment of the present application, the second seal 32 is located between the first channel 2 and the second channel 41; in another embodiment of the present application, the second seal 32 is located at one end of the second channel 41 away from the first channel 2.

[0070] In some embodiments of the present application, the radial dimension of the second channel 41 in the valve body 1 gradually increases from the end close to the first channel 2 to the end away from the first channel 2; that is, in this embodiment, the surface of the second channel 41 is excessively smooth, thereby reducing the resistance of the fluid medium when flowing in the second channel 41, that is, reducing the energy loss of the fluid medium when flowing in the second channel 41, and thus being able to provide a greater reverse thrust for the first seal 31 to ensure that the first seal 31 can move under the action of the reverse thrust of the fluid medium, so that during the valve opening process of the valve structure, the first drive member 51 only needs to drive the second seal 32 to switch from the second position to the first position, so as to reduce the power consumption required for the valve structure to open and maintain the open state.

[0071] See also Figure 2 In some embodiments of the present application, the radial dimension of the second channel 41 at one end close to the first channel 2 in the valve body 1 is L1, and the radial dimension of the second channel 41 at one end away from the first channel 2 in the valve body 1 is L2; ​​wherein, L1 and L2 satisfy: 0.4≤L2 / L1≤0.6; in this embodiment, the ratio of L1 and L2 is set to satisfy this interval range, so that when the medium flows from the second channel 41 into the first channel 2, a greater reverse thrust can be provided to the first sealing member 31, ensuring that the first sealing member 31 can move under the reverse thrust of the fluid medium until the valve is closed. The structure is in an open state, so that during the valve opening process of the valve structure, the first driving member 51 only needs to drive the second sealing member 32 to switch from the second position to the first position, so as to reduce the power consumption required for the valve structure to be opened. At the same time, when the valve structure is kept in an open state, it is only necessary to drive the position of the second sealing member 32 to remain unchanged, thereby further reducing the power consumption required for the valve structure to be kept in an open state; if the interval range of L1 and L2 does not meet this interval range, there may be a situation where the reverse thrust of the fluid medium acting on the first sealing member 31 is insufficient to drive the first sealing member 31 to move.

[0072] In some embodiments of the present application, in the axial direction of the valve body 1, the vertical distance from one end to the other end of the first channel 2 is L3; wherein, L3 satisfies: 0.6mm≤L3≤1.0mm; in this embodiment, the value of L3 is set to satisfy this interval range, so that the fluid medium can have sufficient active stroke in the second channel 41, thereby providing a certain reverse thrust for the first seal 31, while ensuring smooth circulation of the fluid medium and reducing energy loss of the fluid medium.

[0073] It is understandable that in some embodiments of the present application, the size design of L3 is also related to the overall structural size of the valve body 1 to ensure that the first seal 31 having the second channel 41 with a size of L3 can be applied to the valve body 1 in the embodiments of the present application.

[0074] Among them, if the size of L3 is greater than 1.0mm, that is, the size of L3 is too large, it may cause the size of the second channel 41 close to the first channel 2 to be too large, which will cause the flow rate of the fluid medium when flowing out of the first channel 2 to become lower, and thus fail to provide sufficient reverse thrust for the first seal 31; if the size of L3 is less than 0.6mm, the size change of the second channel 41 between the end close to the first channel 2 and the end away from the first channel 2 may not be obvious, and thus fail to utilize the flow channel characteristics of the second channel 41 so that the second fluid medium can provide sufficient reverse thrust for the first seal 31 when flowing out through the second channel 41.

[0075] See also Figure 3 In some embodiments of the present application, the valve body 1 is installed on the base 13, and the fourth channel 14 and the fifth channel 15 are respectively provided on the base 13. The fourth channel 14 is in a high-pressure environment, and the fifth channel 15 is in a low-pressure environment. The fourth channel 14 is connected to the input end of the valve body 1, and the fifth channel 15 is connected to the output end of the valve body 1.

[0076] Please refer again Figures 1 to 3In some embodiments of the present application, the valve body 1 includes a valve seat 11, and the first channel 2 is arranged in the valve seat; the first sealing member 31 has a third position and a fourth position; when the first sealing member 31 is in the third position, the first sealing member 31 contacts the valve seat 11, and there is no gap between the first sealing member 31 and the valve seat 11; when the first sealing member (31) is in the fourth position, the first sealing member 31 is separated from the valve seat 11, and there is a gap between the first sealing member 31 and the valve seat 11 to allow the fluid medium to enter the second channel (41); that is, in this embodiment, when the second sealing member 32 is in the second position and the first sealing member 31 is in the third position, the valve structure is in a closed state; when the second sealing member 32 is in the first position and the first sealing member 31 is in the third position, the valve structure is in a pre-opening state, and the fluid medium can flow from the second channel 41 into the first channel 2, thereby enabling the first sealing member 31 to move from the third position to the fourth position; when the second sealing member 32 is in the first position and the first sealing member 31 is in the fourth position, the valve structure is in an open state.

[0077] That is, in this embodiment, the first driving member 51 is used to drive the second sealing member 32 to move from the second position to the first position, and the reverse thrust provided by the fluid medium when passing through the second channel 41 is used to drive the first sealing member 31 from the third position to the fourth position, so as to realize the opening of the valve structure, and at the same time, the power consumption of the valve structure during the opening process can be reduced.

[0078] It can be understood that when the first sealing member 31 is in the fourth position and the second sealing member 32 is in the first position, the valve structure is always in an open state, and the first driving member 51 only needs to maintain the position of the first sealing member 31 unchanged, that is, the valve structure in the embodiment of the present application can also reduce the power consumption of the valve structure when maintaining the open state.

[0079] In addition, since the fluid medium enters the first channel 2 from the gap between the first sealing member 31 and the valve seat 11 when the valve structure remains in an open state, at this time, the fluid medium no longer needs to flow through the second channel 41 to flow into the first channel 2. Therefore, when the first sealing member 31 is located at the fourth position and the second sealing member 32 is located at the first position, the positional relationship between the first sealing member 31 and the second sealing member 32 is not restricted and they can be separated from each other or in contact with each other.

[0080] In some embodiments of the present application, when the first seal 31 is in the third position and the second seal 32 is in the second position, the first seal 31 abuts against the valve seat 11, and the end of the second seal 32 away from the first drive member 51 seals the second channel 41, and the first seal 31 and the second seal 32 cooperate to seal the first channel 2; that is, in this embodiment, one end of the second seal 32 in the axial direction of the valve body 1 abuts against one end of the second channel 41, thereby limiting the fluid medium from entering the second channel 41, that is, limiting the fluid medium from the second channel 41 to the first channel 2, that is, the first seal 31 and the second seal 32 cooperate with each other to make the valve structure in a closed state.

[0081] It should be noted that when the first driving member 51 drives the second sealing member 32 to move from the second position to the first position, at the moment when the fluid medium flows into the second channel 41, the valve structure in the embodiment of the present application also has a state where the second sealing member 32 is located in the first position and the first sealing member 31 is located in the third position, that is, the fluid medium has not yet formed sufficient reverse thrust to drive the first sealing member 31 to move.

[0082] In some embodiments of the present application, the first driving member 51 is connected to the second sealing member 32 and is used to drive the second sealing member to switch between the first position and the second position. That is, in this embodiment, the first driving member 51 also has the function of switching the second sealing member 32 from the first position to the second position, that is, the reciprocating change of the second sealing member 32 between the first position and the second position can be achieved by using one driving structure.

[0083] In some embodiments of the present application, the first driving member 51, the second sealing member 32, the first sealing member 31 and the valve seat 11 are arranged sequentially in the axial direction of the valve body 1, that is, when the first driving member 51 drives the second sealing member 32 to switch from the first position to the second position, it can also drive the first sealing member 31 to switch from the fourth position to the third position through the second sealing member 32, so that the valve structure is in a closed state.

[0084] In some embodiments of the present application, the drive assembly 5 also includes a second drive member 52, which is connected to the first seal 31 and is used to drive the first seal 31 to switch between the third position and the fourth position; that is, in this embodiment, the second drive member 52 can realize the switching function of the first seal 31 between the third position and the fourth position, and cooperate with the first drive member 51 to drive the second seal 32 to switch between the first position and the second position, thereby realizing the opening and closing of the valve structure.

[0085] It should be noted that the second driving member 52 can also realize the unidirectional movement of the first sealing member 31 from the third position to the fourth position, that is, cooperate with the reverse thrust of the fluid medium to switch the first sealing member 31 from the third position to the fourth position to ensure that the valve structure can be in an open state.

[0086] In some embodiments of the present application, the second driving member 52 is an elastic component; that is, the second driving member 52 can drive the first sealing member 31 to separate from the valve seat 11 through elastic deformation and the reverse thrust formed when the fluid medium enters the first channel 2 from the second channel 41.

[0087] When the first sealing member 31 is in the third position, the second driving member 52 is in the first compression state; when the first sealing member 31 is in the fourth position, the second driving member 52 is in the second compression state; the compression amount of the second driving member 52 when it is in the first compression state is greater than the compression amount of the second driving member 52 when it is in the second compression state; when the second sealing member 32 switches from the second position to the first position, the first sealing member 31 will no longer abut the second sealing member 32, so that the second driving member 52 drives the first sealing member 31 to move from the third position to the fourth position due to elastic deformation, so that the valve structure is in an open state.

[0088] It should be supplemented that, when the second driving member 52 is in the second compression state, the compression amount of the second driving member 52 can be zero.

[0089] See also Figure 1 , Figure 4 and Figure 5 In some embodiments of the present application, the second driving member 52 includes a first elastic member 521 and a supporting member 522, the first elastic member 521 is sleeved on the outer peripheral wall of the valve seat 11; one end of the supporting member 522 is connected to one end of the first elastic member 521; wherein the supporting member 522 includes a step portion 7 facing away from the first elastic member 521, and the first sealing member 31 is located in the step portion 7; wherein at least a portion of the step portion 7 is embedded in the first elastic member 521, so that the stability of the movement of the first sealing member 31 can be improved in the process of the first elastic member 521 driving the first sealing member 31 to move.

[0090] In some embodiments of the present application, the first elastic member 521 is a spring.

[0091] In some embodiments of the present application, the valve body 1 also includes a shell 12, which is connected to the valve seat 11 in the axial direction of the valve body 1. The supporting member 522 moves along the inner wall of the shell under the drive of the first elastic member 521, thereby limiting the movement direction of the supporting member 522 and the first sealing member 31 to ensure the stability of the interaction of the first sealing member 31, thereby avoiding the first sealing member 31 from getting stuck or even stuck during the movement.

[0092] In some embodiments of the present application, the supporting member 522 is provided with a through hole 8 at the step portion 7 , and the through hole 8 is connected to the second channel 41 and the first channel 2 to ensure that the first channel 2 and the second channel 41 can be connected during the movement of the second sealing member 32 .

[0093] Please refer again Figure 1 In some embodiments of the present application, the first driving member 51 includes an electromagnetic coil assembly 511 and a magnet 512, and the electromagnetic coil assembly 511 is arranged on the valve body 1; the magnet 512 is transmission-connected to the electromagnetic coil assembly 511 and connected to the second sealing member 32; in this embodiment, the electromagnetic coil assembly 511 can drive the magnet 512 to move in the axial direction of the valve body 1 by passing current, and the magnet 512 is connected to the second sealing member 32, thereby driving the second sealing member 32 to move in the axial direction of the valve body 1 toward or away from the first sealing member 31, that is, driving the second sealing member 32 to switch between the first position and the second position.

[0094] It is understandable that when positive and negative currents are passed through the electromagnetic coil assembly 511 , the magnet 512 can move in the axial direction of the valve body 1 toward or away from the valve seat 11 , thereby driving the second sealing member 32 to switch between the first position and the second position.

[0095] In some embodiments of the present application, the first driving member 51 also includes a second elastic member 513, which is arranged between the electromagnetic coil assembly 511 and the magnet 512 to drive the second seal 32 to move from the first position to the second position; in this embodiment, when the electromagnetic coil assembly 511 is powered off, the second elastic member 513 can drive the magnet 512 to move away from the electromagnetic coil assembly 511, so that the magnet 512 drives the second seal 32 to move in the axial direction of the valve body 1 close to the first seal 31, thereby driving the second seal 32 to be in the second position and the first seal 31 to be in the third position.

[0096] In some embodiments of the present application, the second elastic member 513 includes a spring.

[0097] In some embodiments of the present application, a groove extending along the axial direction of the valve body 1 is provided in the magnet 512, and at least a portion of the second elastic member 513 is provided in the groove to limit the movement of the second elastic member 513 so that the second elastic member 513 can only elastically expand and contract along the axial direction of the valve body 1.

[0098] The provision of the second elastic member 513 can prevent the electromagnetic coil assembly 511 from being always in a powered-on state, which can not only effectively save energy but also prevent the electromagnetic coil assembly 511 from being damaged due to long-term use.

[0099] When the electromagnetic coil assembly 511 is energized, the electromagnetic coil assembly 511 can attract the magnet 512 to overcome the elastic force of the second elastic member 513 and move away from the valve seat 11 in the axial direction of the valve body 1, thereby causing the second sealing member 32 to move from the second position to the first position.

[0100] Among them, since the first driving member 51 includes the electromagnetic coil assembly 511, when the electromagnetic coil assembly 511 drives the second sealing member 32 to move, it is not necessary to overcome a large pressure, and the power consumption of the electromagnetic coil assembly 511 is relatively small, thereby avoiding the problem of overheating of the electromagnetic coil assembly 511 during use. Similarly, when the valve structure is in an open state, the electromagnetic coil assembly 511 only needs to drive the second sealing member 32 to remain in the first position, thereby avoiding the problem of overheating of the electromagnetic coil assembly 511 during use.

[0101] It is understandable that when the temperature of the electromagnetic coil assembly 511 is too high, the magnetic conductivity of the magnet 512 and the electromagnetic coil assembly 511 will decrease as the temperature rises, thereby making it difficult for the first driving member 51 to control the second sealing member 32 to switch between the first position and the second position.

[0102] In some embodiments of the present application, when the valve structure is in a closed state, the magnet 512 is affected by gravity to abut against the first sealing member 31 in the axial direction of the valve body 1 through the second sealing member 32 .

[0103] In some embodiments of the present application, the valve body 1 also includes a shell 12, which is connected to the valve seat 11, and an installation cavity 9 is provided on the shell 12; the electromagnetic coil assembly 511 is provided on the shell 12, and the magnet 512 and the first seal 31 are both movably provided in the installation cavity 9; in this embodiment, the movement of the magnet 512 and the first seal 31 is limited by the shell 12 to ensure the stability of the movement of the magnet 512 and the first seal 31.

[0104] In some embodiments of the present application, the electromagnetic coil assembly 511 includes an electromagnetic coil 5111 and a driving magnet 5112, at least a portion of the driving magnet 5112 is located in the installation cavity 9 and on the inner side of the electromagnetic coil 5111, so as to attract the magnet 512 to move close to the driving magnet 5112 in the axial direction of the valve body 1 when the electromagnetic coil 5111 is energized.

[0105] See also Figure 1 and Figure 6 In some embodiments of the present application, the first seal 31 also includes at least one third channel 42, wherein when the second seal 32 is in the second position, at least a portion of the second seal 32 is located in the first seal 31 and blocks the communication between the second channel 41 and the third channel 42; when the second seal 32 is in the first position, the second channel 41 and the third channel 42 are connected; that is, in this embodiment, the second seal 32 limits the communication between the third channel 42 and the second channel 41 to limit the flow of the fluid medium from the third channel 42 to the second channel 41, thereby placing the valve structure in a closed state.

[0106] There is no limitation on the number of the second channel 41 and the third channel 42 , and both the second channel 41 and the third channel 42 can be one or more.

[0107] In some embodiments of the present application, the first seal 31 also includes a receiving cavity 6, which is connected to the second channel 41 and the third channel 42 respectively, wherein when the second seal 32 is in the second position, at least a portion of the second seal 32 is located in the receiving cavity 6, that is, in this embodiment, when the second seal 32 is in the second position, one end of the second seal 32 is received in the receiving cavity 6, and the first seal 31 is movably arranged in the receiving cavity 6 so that the second channel 41 is connected or disconnected with the third channel 42.

[0108] In some embodiments of the present application, one second channel 41 is provided, and a plurality of third channels 42 are provided, and the plurality of third channels 42 are connected to the second channel 41 through the accommodating chamber 6; wherein, providing a plurality of third channels 42 in communication with the second channel 41 can increase the unit volume of the fluid medium entering the second channel 41, and thus when the fluid medium flows from the second channel 41 into the first channel 2, it can provide a greater reverse thrust for the first seal 31 and increase the unit volume of the fluid medium passing through the valve body 1.

[0109] The second channel 41 is provided with one, which can also facilitate the first sealing member 31 to separate the second channel 41 and the plurality of third channels 42 or to make the second channel 41 communicate with the plurality of third channels 42 during the movement.

[0110] In some embodiments of the present application, the second channel 41 extends axially along the valve body 1 , so that when the fluid medium flows from the second channel 41 into the first channel 2 , the first sealing member 31 provides an axial reverse thrust of the valve body 1 .

[0111] In addition, there is no limitation on the form in which the first seal 31 separates the second channel 41 and the third channel 42. In one embodiment of the present application, the first seal 31 can block the connection between the third channel 42 and the receiving chamber 6, so that the second channel 41 and the third channel 42 are not connected; in another embodiment of the present application, the first seal 31 can block the connection between the second channel 41 and the receiving chamber 6, so that the second channel 41 and the third channel 42 are not connected; in another embodiment of the present application, the first seal 31 can separate the receiving chamber 6 between the second channel 41 and the third channel 42, so that the second channel 41 and the third channel 42 are not connected.

[0112] In some embodiments of the present application, the first seal 31 seals one end of the second channel 41 at one axial end of the valve body 1, and a sealing rubber is provided on one axial end of the first seal 31 of the valve body 1 to improve the sealing ability of the first seal 31 to the second channel 41.

[0113] In some embodiments of the present application, the valve body 1 also includes an installation cavity 9, and the first seal 31 and the second seal 32 are both movably arranged in the installation cavity 9, wherein when the second seal is in the first position, the installation cavity 9 is connected to the second channel 41; wherein the installation cavity 9 can provide protection for the movement of the first seal 31 and the second seal 32, that is, the first seal 31 and the second seal 32 are movably arranged in a closed environment; in addition, the second channel 41 can be connected to the external environment through the installation cavity 9.

[0114] In some embodiments of the present application, the installation cavity 9 can also limit the movement direction of the supporting member 522 and the magnet 512 , that is, limit the axial movement of the supporting member 522 and the magnet 512 along the valve body 1 .

[0115] See also Figures 7 and 8 In some embodiments of the present application, at least one through hole 10 is further provided on the valve body 1, and the through hole 10 connects the installation cavity 9 and the external environment; that is, when the first sealing member 31 is in the first position, the first channel 2 is connected to the external environment through the second channel 41, the third channel 42, the installation cavity 9 and the through hole 10.

[0116] In some embodiments of the present application, a plurality of through holes 10 are provided on the valve body 1 to increase the unit volume amount of the fluid medium entering into the valve structure.

[0117] In some embodiments of the present application, the valve body 1 includes a shell 12 and a valve seat 11, the through hole 10 is arranged on the shell 12, and the installation cavity 9 is arranged in the shell 12; the valve seat 11 is connected to the shell 12, and the first channel 2 is arranged on the valve seat 11; that is, in this embodiment, the valve seat 11 and the shell 12 constitute the main structure of the valve structure, wherein the first channel 2 penetrates the valve seat 11 in the axial direction of the valve body 1, the first sealing member 31 is located at one end of the valve seat 11 in the axial direction of the valve body 1 and is located in the installation cavity 9, and the second sealing member 32 is located on the side of the first sealing member 31 in the axial direction of the valve body 1 away from the valve seat 11 and is located in the installation cavity 9; wherein both the first sealing member 31 and the second sealing member 32 can move along the axial direction of the valve body 1.

[0118] In some embodiments of the present application, the valve body 1 is installed on a base 13, and a fourth channel 14 and a fifth channel 15 are respectively provided on the base 13. The fourth channel 14 is in a high-pressure environment, and the fifth channel 15 is in a low-pressure environment. The fifth channel 15 is connected to the first channel 2, that is, the valve structure is used to control the opening and closing between the fourth channel 14 and the fifth channel 15.

[0119] In some embodiments of the present application, the valve seat 11 is sealed and connected to the shell 12, a sealing ring is arranged between the valve seat 11 and the base 13, the shell 12 is connected to the base 13 through a fixed seat 16 sleeved on the outside of the shell 12, and a sealing ring is also arranged between the fixed seat 16 and the base 13, so as to prevent the medium flowing from the fourth channel 14 to the fifth channel 15 from leaking from the installation position of the valve body 1.

[0120] In the valve structure of the present application, when the valve structure switches from a closed state to an open state, the electromagnetic coil assembly 511 is energized, driving the magnet 512 to move upward, thereby driving the second sealing member 32 to switch from the second position to the first position. At this time, the through hole 10, the mounting cavity 9, the third channel 42, the second channel 41 and the first channel 2 are connected in sequence, and the high-pressure fluid medium can enter the first channel 2 from the second channel 41. At this time, under the influence of the high-pressure fluid medium, the first sealing member 31 is still in the third position. When the high-pressure fluid medium enters the first channel 2 through the second channel 41, a reverse thrust is generated on the first sealing member 31, and the first elastic member 521 cooperates to move the first sealing member 31 upward and is in the fourth position. At this time, the fluid medium located in the mounting cavity 9 directly enters the first channel 2; at this time, the supporting member 522 is located above the through hole 10 so as not to affect the medium flowing from the through hole 10 into the mounting cavity 9.

[0121] The present application also proposes a vehicle, including a valve structure, the valve structure being as described above. Since the present vehicle adopts all the technical solutions of all the above embodiments, it at least has the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0122] The vehicle may be a fuel vehicle, a plug-in hybrid vehicle or a new energy vehicle, etc., and this application does not make any specific limitation on this.

[0123] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0124] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0125] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0126] The above are only preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A valve structure, characterized in that: include: a valve body including a first passage; A sealing assembly, comprising a first sealing member and a second sealing member, wherein the first sealing member is movably disposed in the valve body and comprises a second channel, and the second sealing member is movably disposed in the valve body and has a first position and a second position; when the second sealing member is in the first position, the second sealing member allows a fluid medium to flow from the second channel into the first channel, and when the second sealing member is in the second position, the second sealing member restricts the fluid medium from flowing from the second channel into the first channel; A driving assembly, comprising a first driving member, the first driving member is connected to the second sealing member and is used to drive the second sealing member to switch from the second position to the first position; The radial dimension of the valve body of one end of the second channel close to the first channel is greater than the radial dimension of the valve body of one end of the second channel far from the first channel.

2. The valve structure according to claim 1, characterized in that: A dimension of the second passage in a radial direction of the valve body gradually increases from an end close to the first passage to an end far away from the first passage.

3. The valve structure according to claim 1, characterized in that: The radial dimension of the second channel at one end close to the first channel in the valve body is L1, and the radial dimension of the second channel at one end away from the first channel in the valve body is L2; ​​wherein L1 and L2 satisfy: 0.4≤L2 / L1≤0.

6.

4. The valve structure according to claim 1, characterized in that: In the axial direction of the valve body, a vertical distance from one end to the other end of the first channel is L3; wherein L3 satisfies: 0.6mm≤L3≤1.0mm.

5. The valve structure according to claim 1, characterized in that: The valve body comprises a valve seat, and the first passage is arranged in the valve seat; The first sealing member has a third position and a fourth position; When the first sealing member is in the third position, the first sealing member contacts the valve seat, and there is no gap between the first sealing member and the valve seat; When the first sealing member is in the fourth position, the first sealing member is separated from the valve seat, and a gap is provided between the first sealing member and the valve seat to allow the fluid medium to enter the second channel.

6. The valve structure according to claim 5, characterized in that: When the first seal is in the third position and the second seal is in the second position, the first seal abuts against the valve seat, and the end of the second seal away from the first driving member 51 seals the second channel, and the first seal cooperates with the second seal to seal the first channel.

7. The valve structure according to any one of claims 1 to 6, characterized in that: The first driving member is connected to the second sealing member and is used for driving the second sealing member to switch between the first position and the second position.

8. The valve structure according to any one of claims 5 to 6, characterized in that: The driving assembly further includes a second driving member, which is connected to the first sealing member and is used to drive the first sealing member to switch between the third position and the fourth position.

9. The valve structure according to claim 8, characterized in that: The second driving member is an elastic component; When the first sealing member is in the third position, the second driving member is in a first compression state; When the first sealing member is in the fourth position, the second driving member is in a second compressed state; Wherein, the compression amount of the second driving member when being in the first compression state is greater than the compression amount of the second driving member when being in the second compression state.

10. The valve structure according to claim 9, characterized in that: The second driving member comprises: A first elastic member, wherein the first elastic member is sleeved on the outer peripheral wall of the valve seat; and a supporting member, one end of which is connected to one end of the first elastic member; Wherein, the supporting member includes a step portion facing away from the first elastic member, and the first sealing member is located in the step portion.

11. The valve structure according to claim 1, characterized in that: The first driving member comprises: an electromagnetic coil assembly, disposed on the valve body; and A magnet is drivingly connected to the electromagnetic coil assembly and connected to the second sealing member.

12. The valve structure according to claim 11, characterized in that: The first driving member further includes a second elastic member, which is disposed between the electromagnetic coil assembly and the magnet and is used to drive the second sealing member to move from the first position to the second position.

13. The valve structure according to claim 1, characterized in that: The first seal also includes at least one third channel; Wherein, when the second seal is in the second position, at least part of the second seal is located in the first seal and blocks the connection between the second channel and the third channel; when the second seal is in the first position, the second channel is connected to the third channel.

14. The valve structure according to claim 13, characterized in that: The first sealing member further comprises a receiving cavity, and the receiving cavity is respectively connected to the third channel and the second channel; Wherein, when the second sealing member is in the second position, at least a portion of the second sealing member is located in the receiving cavity.

15. The valve structure according to claim 1, characterized in that: The valve body further comprises an installation cavity, and the first sealing member and the second sealing member are both movably disposed in the installation cavity; Wherein, when the second sealing member is in the first position, the installation cavity is communicated with the second channel.

16. The valve structure according to claim 15, characterized in that: The valve body is also provided with at least one through hole, and the through hole is connected with the installation cavity and the external environment.

17. The valve structure according to claim 16, characterized in that: The valve body also includes: a housing, wherein the through hole is arranged on the housing, and the mounting cavity is arranged in the housing; and A valve seat is connected to the housing, and the first passage is arranged on the valve seat.

18. A vehicle, characterized in that: Comprising the valve structure according to any one of claims 1 to 17.

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