Valve core, valve structure and vehicle

Abstract

This application relates to a valve core (1), a valve structure, and a vehicle. The valve core (1) is disposed within the valve structure and includes a connecting part (101) and a pressurizing part (102) connected to each other and configured to open or close the valve structure. At least a portion of the outer contour of the pressurizing part (102) protrudes from the outer contour of the connecting part (101). In this embodiment, since at least a portion of the outer contour of the pressurizing part (102) of the valve core (1) protrudes from the outer contour of the connecting part (101), when the valve structure is closed, the high pressure inside the valve structure will apply a certain pressure to the surface of the outer contour of the pressurizing part (102) protruding from the outer contour of the connecting part (101), thereby ensuring the sealing effect of the valve core (1) when the valve structure is closed.

Description

1. Description of Valve Core, Valve Structure, and Vehicle Technical Field This application relates to the field of vehicle technology, and more particularly to a valve core, valve structure, and vehicle. Background Art In related technologies, a valve needle is driven by a screw to block or open the valve port within a throttle valve. However, since the screw and valve needle are connected by a spring, if the spring's performance deteriorates during long-term use, it can easily lead to unreliable sealing of the throttle valve, resulting in poor sealing performance. Summary of the Invention Embodiments of this application provide a valve core, valve structure, and vehicle, improving the sealing performance of the throttle valve to at least partially solve the above-mentioned technical problems. To achieve the above objective, according to a first aspect of this application, a valve core is provided, which is disposed within a valve structure. The valve core includes a connecting portion and a pressurizing portion connected to each other and is configured to open or close the valve structure; wherein at least a portion of the outer contour of the pressurizing portion protrudes from the outer contour of the connecting portion. In some embodiments, the connecting portion and the pressurizing portion are connected in a first direction; in a second direction perpendicular to the first direction, the maximum distance between the outer contour of the connecting portion and the outer contour of the pressurizing portion is L1; wherein L1 satisfies: 0.1mm ≤ L1 ≤ 0.5mm. In some embodiments, the connecting portion has a first outer surface, which is at least a portion of the outer contour of the connecting portion; the pressurizing portion has a pressure-bearing surface, which is at least a portion of the outer contour of the pressurizing portion; the pressure-bearing surface is completely protruding from the first outer surface. In some embodiments, at least a portion of the pressure-bearing surface is inclined relative to the first outer surface. In some embodiments, the angle of inclination of the pressure-bearing surface relative to the first outer surface is an obtuse angle. In some embodiments, one end of the pressure-bearing surface is connected to one end of the first outer surface. In some embodiments, at least a portion of the end of the pressure-bearing surface connected to the first outer surface is an arc surface. In some embodiments, the connecting portion has a groove; wherein the groove extends from the first outer surface to the interior of the connecting portion. In some embodiments, the groove wall is also connected to the pressure-bearing surface. In some embodiments, the pressurizing portion has a second outer surface, which is connected to the end of the pressure-bearing surface away from the first outer surface; wherein the second outer surface extends from the pressure-bearing surface in a direction away from the pressure-bearing surface. In some embodiments, the pressurizing portion further has an end face; wherein the end face is located at the end of the pressurizing portion away from the connecting portion and is connected to the second outer surface. In some embodiments, the end face includes a plane and an arc surface connected to each other; wherein the plane is connected to the second outer surface through the arc surface. In some embodiments, the connecting portion and the pressurizing portion are connected in a first direction; in a second direction perpendicular to the first direction, the maximum distance between the outer contour of the connecting portion and the outer contour of the pressurizing portion is L1; the radius of the circle containing the arc surface is R1; wherein L1 and R1 satisfy: 0.03mm≤R1≤L. In some embodiments, the pressurizing portion has a cavity; wherein the thickness of the end of the pressurizing portion near the connecting portion is greater than the thickness of the end of the pressurizing portion away from the connecting portion.In some embodiments, the thickness of the pressurizing portion gradually decreases in the direction away from the connection portion. In some embodiments, the pressurizing portion has an inner surface forming a cavity; wherein the extending direction of the inner surface is inclined relative to the first direction. According to a second aspect of this application, a valve structure is provided, the valve structure comprising: a valve body having a valve cavity and a valve port communicating with the valve cavity; and a valve core movably disposed within the valve cavity to open or close the valve port. In some embodiments, the valve body comprises: a valve seat assembly having a valve port formed on the valve seat assembly, and a valve core disposed on one side of the valve seat assembly in a first direction; wherein the valve core is movable in the first direction and can separate from or abut against the valve seat assembly to open or close the valve port. In some embodiments, the valve seat assembly comprises: a valve seat having a valve port formed on the valve seat; and a seal disposed on the valve seat; wherein the valve core is disposed on one side of the valve seat or the seal in the first direction. In some embodiments, at least one of the valve core and the seal is an elastic element. In some embodiments, the valve structure further comprises: a drive assembly configured to drive the valve core to move in the first direction such that the valve core separates from or abuts against the valve seat assembly. HK 20134899 A 3 In some embodiments, the valve core has a first position and a second position. When the valve core is in the first position, it abuts against the valve seat assembly; when the valve core is in the second position, the valve body is separated from the valve seat assembly. The drive assembly includes: an output section, movably disposed within the valve body along a first direction and linked with the valve core, to drive the valve core to switch between the first and second positions. In some embodiments, the valve core is connected to the output section and is movable relative to the output section in the first direction. The drive assembly includes: a first elastic member, disposed between the output section and the valve core. The first elastic member has a first compression state and a second compression state. The compression amount of the first elastic member in the first compression state is less than the compression amount of the first elastic member in the second compression state. Wherein, when the first elastic member is in the first compression state, the output section and the valve core are relatively fixed, and the output section can drive the valve core to move between the first and second positions. When the valve core is in the first position and the output section moves relative to the valve core, the first elastic member is in the second compression state. In some embodiments, the output portion has a mounting cavity on the side near the valve core, and at least a portion of the valve core is located within the mounting cavity. The drive assembly further includes: a limiting member located within the mounting cavity and movable in a first direction, the limiting member being fixed to the valve core to limit separation between the valve core and the output portion; wherein a first elastic member is disposed between the limiting member and the cavity wall of the mounting cavity. In some embodiments, the drive assembly further includes: a mounting base fixedly disposed within the valve body, the output portion being screwed to the mounting base; and a rotating member rotatably disposed within the valve body and linked with the output portion; wherein the output portion rotates with the rotating member and is movable in the first direction. In some embodiments, the limiting member includes a bearing, the inner ring of the bearing being fixed to the valve core, and the outer ring of the bearing being connected to the first elastic member.In some embodiments, the drive assembly further includes: a connector, fixedly connected to a limiting member; wherein the connector abuts against a first elastic member, and at least a portion of the connector is located inside the first elastic member. In some embodiments, the drive assembly further includes: a second elastic member, disposed within the valve body and abutting against the valve core, configured to drive the valve core to move from a second position to a first position. According to a third aspect of this application, a vehicle is provided, the vehicle including a valve core or a valve structure. In the embodiments of this application, the valve core is disposed within the valve structure, the valve core including a connecting portion and a pressurizing portion connected to each other and configured to open or close the valve structure; wherein at least a portion of the outer contour of the pressurizing portion protrudes from the outer contour of the connecting portion; in the embodiments of this application, since at least a portion of the outer contour of the pressurizing portion of the valve core protrudes from the outer contour of the connecting portion, when the valve structure is in the closed state, the high pressure within the valve structure will apply a certain pressure to the surface of the outer contour of the pressurizing portion protruding from the outer contour of the connecting portion, thereby ensuring the sealing effect of the valve core when the valve structure is in the closed state, and avoiding the problem of poor sealing of the valve structure caused by the movement of the valve core. Other features and advantages of this application will be described in detail in the following detailed description section. Brief Description of the Drawings To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. To more completely understand this application and its beneficial effects, the following description will be made in conjunction with the accompanying drawings, wherein the same reference numerals in the following description indicate the same parts. Figure 1 is a cross-sectional schematic diagram of the valve structure provided in an exemplary embodiment of this application; Figure 2 is a partial cross-sectional schematic diagram of the valve structure provided in an exemplary embodiment of this application; Figure 3 is a cross-sectional schematic diagram of the valve core provided in an exemplary embodiment of this application; Figure 4 is an enlarged schematic diagram of point A in Figure 2; Figure 5 is an enlarged schematic diagram of point B in Figure 2; Figure 6 is an enlarged schematic diagram of point C in Figure 1; Figure 7 is a partial cross-sectional schematic diagram of the valve structure provided in an exemplary embodiment of this application in the open state; Figure 8 is an assembly schematic diagram of the valve seat and valve shell in this application; Figure 9 is a cross-sectional schematic diagram of the valve shell in this application; Figure 10 is a cross-sectional schematic diagram of the valve structure provided in an exemplary embodiment of this application; Figure 11 is an assembly schematic diagram of the valve seat and valve shell in an exemplary embodiment of this application; Figure 12 is a cross-sectional schematic diagram of the valve seat in an exemplary embodiment of this application; Figure 13 is a cross-sectional schematic diagram of the seal in an exemplary embodiment of this application.HK 20134899 A 5 Reference numerals: 1. Valve core; 101. Connecting part; 101A. First outer surface; 102. Pressurizing part; 102A. Pressure bearing surface; 102B. Second outer surface; 102C. End face; 1021. Plane; 1022. Arc surface; 102D. Inner surface; 2. Groove; 3. Cavity; 4. Valve body; 41. Valve seat assembly; 411. Valve seat; 412. Seal; 5. Valve cavity; 6. Valve port; 7. Drive assembly; 71. Output part; 72. First elastic element; 73. Limiting element; 74. Mounting seat; 75. Rotating element; 76. Connecting element; 77. Second elastic element; 8. Mounting cavity; 42. Valve shell; 9. Throttling part; 91. First guide surface; 10. First channel; 11. Second channel; 12. Flow guide; 121. Second flow guide surface; 13. Protrusion; 14. Top surface; 15. Bottom surface; 16. Outer surface; 17. Inner surface; 18. Mounting groove; 4111. First sub-segment; 4112. Second sub-segment; 19. Anti-fooling part; 20. Avoidance groove; 43. Valve body; 44. Valve cover; 21. Connecting ring; 22. Inlet. Detailed Description of Embodiments The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this application. This application proposes a valve core, and Figures 1 to 13 are some embodiments of this application. Please refer to Figures 1 and 2. In some embodiments of this application, the valve core 1 is disposed within the valve structure. The valve core 1 includes a connecting portion 101 and a pressurizing portion 102 connected to each other and is configured to open or close the valve structure. At least a portion of the outer contour of the pressurizing portion 102 protrudes from the outer contour of the connecting portion 101. It should be further noted that when the valve structure is in the open state, the medium flows from the valve cavity 5 of the valve structure to the valve port 6, and then flows out of the valve structure from the valve port 6. When the valve structure is in the closed state, due to the obstruction of the valve core 1, the medium cannot flow from the valve cavity 5 to the valve port 6. At this time, the valve cavity 5 is a high-pressure environment, and the valve port 6 is a low-pressure environment, that is, the valve cavity 5 will exert a certain pressure on the valve body 4. In the technical solution of this application, since at least a portion of the outer contour of the pressure part 102 of the valve core 1 protrudes beyond the outer contour of the connecting part 101, when the valve structure is in the closed state, the high pressure inside the valve structure will apply a certain pressure to the surface of the outer contour of the pressure part 102 that protrudes beyond the outer contour of the connecting part 101, thereby ensuring the sealing effect of the valve core 1 when the valve structure is in the closed state, and avoiding the problem of poor sealing of the valve structure caused by the valve core 1 moving.When the high pressure within the valve structure applies pressure to the surface of the outer contour of the pressurizing part 102 that protrudes beyond the outer contour of the connecting part 101, it makes it more difficult for the valve core 1 to separate from the part that abuts against the valve core 1, thereby ensuring the sealing performance of the valve structure in the closed state. Referring to Figures 3 and 4, in some embodiments of this application, the connecting part 101 and the pressurizing part 102 are connected in the first direction Y; and at least a portion of the outer contour of the pressurizing part 102 protrudes beyond the outer contour of the connecting part 101 in the second direction X, perpendicular to the first direction Y. That is, in this embodiment, the valve core 1 is movably disposed within the valve structure along the first direction Y, and at least a portion of the outer contour of the pressurizing part 102 protrudes beyond the outer contour of the connecting part 101 in the second direction X, thereby allowing the high pressure within the valve body 4 to apply pressure to the valve body 4 in the first direction Y, thus ensuring that the valve body 4 does not move when the valve structure is in the closed state. In some embodiments of this application, the maximum distance between the outer contour of the connecting portion 101 and the outer contour of the pressurizing portion 102 in the second direction X, perpendicular to the first direction Y, is L1; wherein L1 satisfies: 0.1mm≤L1≤0.5mm; in this embodiment, L1 is designed to satisfy this range, thereby ensuring that the valve core 1 can provide sufficient sealing effect within the valve structure when subjected to high pressure, and also avoiding the problem that the outer contour of the connecting portion 101 protrudes too much beyond the outer contour of the pressurizing portion 102 in the second direction X, resulting in excessive pressure applied to the valve body 4, which in turn affects the sensitivity of the valve structure during normal operation. If L1 is less than 0.1mm, the high-pressure environment within the valve structure may apply too little pressure to the valve core 1, failing to provide a good sealing effect. If L1 is greater than 0.5mm, the high-pressure area within the valve structure may apply too much pressure to the valve core 1, affecting the sensitivity of the valve structure during normal operation. In some embodiments of this application, at least a portion of the connecting portion 101 and the pressurizing portion 102 are cylindrical; therefore, the first direction Y is the axial direction of the valve core 1, and the second direction X is the radial direction of the valve core 1; in this embodiment, the value of L1 is also the difference between the radius of the outer contour of the pressurizing portion 102 and the radius of the outer contour of the connecting portion 101.In some embodiments of this application, the dimension of the pressurizing part 102 in the radial plane 1021 of the valve core 1 is S1, and the dimension of the connecting part 101 in the radial plane 1021 of the valve core 1 is S2; when the pressure of the high-pressure environment inside the valve structure is P1, the pressure F2 provided by the pressurizing part 102 to the valve core 1 is F2 = P1 × (S1 - S2); in addition, when the valve structure is switched, the driving force on the valve core 1 is F1, the elastic force provided by the spring when it abuts against the valve core 1 is F3, and the maximum resistance in the first direction Y that the valve core 1 experiences when it switches from the closed state to the open state is F4; wherein, when F1 > F2 + F3 + F4 is satisfied, it is possible to ensure that the valve core 1 is sealed securely when the valve structure is in the closed state while avoiding affecting the normal driving sensitivity of the valve structure. The value of L1 can be 0.1mm, 0.12mm, 0.14mm, 0.16mm, 0.18mm, 0.2mm, 0.22mm, 0.24mm, 0.26mm, 0.28mm, 0.3mm, 0.32mm, 0.34mm, 0.36mm, 0.38mm, 0.4mm, 0.42mm, 0.44mm, 0.46mm, 0.48mm, or 0.5mm. The value of L1 is not limited to the listed values; other unlisted values ​​within this range also apply. In some embodiments of this application, the connecting portion 101 has a first outer surface 101A, which is at least a part of the outer contour of the connecting portion 101; the pressurizing portion 102 has a pressure-bearing surface 102A, which is at least a part of the outer contour of the pressurizing portion 102; the pressure-bearing surface 102A completely protrudes from the first outer surface 101A; wherein, according to the pressure and pressure calculation formula: F=PS, when the pressure-bearing surface 102A completely protrudes from the first outer surface 101A, the pressure value applied to the valve core 1 for sealing in the high-pressure environment is the maximum, thereby ensuring the sealing effect of the valve core 1 when the valve structure is in a sealed state. It should be further noted that the first outer surface 101A is at least a part of the outer contour of the connecting part 101. That is, the outer contour of the connecting part 101 can be formed by the first outer surface 101A, or it can be formed by the first outer surface 101A together with other surfaces; no limitation is made here. Similarly, the pressure-bearing surface 102A is at least a part of the outer contour of the pressurizing part 102. That is, the outer contour of the pressure-bearing surface 102A can be formed by the pressure-bearing surface 102A, or it can be formed by the pressure-bearing surface 102A together with other surfaces; no limitation is made here.In some embodiments of this application, at least a portion of the pressure-bearing surface 102A is inclined relative to the first outer surface 101A. This arrangement reduces the resistance encountered by the medium flowing through the valve structure, thereby ensuring smooth flow of the medium within the valve structure. If the pressure-bearing surface 102A has a stepped or uneven surface, turbulence or flow resistance can easily occur when the medium flows through the valve structure. Furthermore, since at least a portion of the pressure-bearing surface 102A is inclined relative to the first outer surface 101A, the surface of the pressure-bearing surface 102A is flat and easy to process. In some embodiments of this application, the angle of inclination of the pressure-bearing surface 102A relative to the first outer surface 101A is α, where α is an obtuse angle; that is, in this embodiment, α satisfies 90° < α < 180°. Designing α to satisfy this range ensures that the high-pressure environment provides sufficient sealing pressure to the valve core 1 in the valve closing direction while reducing the flow resistance of the medium flowing through the valve structure, thereby ensuring the operational stability of the valve structure. If α is less than 90°, a recessed area is formed between the pressure-bearing surface 102A and the first outer surface 101A. This recessed area will affect the smooth flow of the medium within the valve structure and is prone to turbulence or flow resistance. Furthermore, this recessed area is prone to accumulating impurities during the valve structure's operation, thus affecting its normal operation. If α is greater than 180°, the high-pressure environment will apply a certain pressure to the valve core 1 in the opening direction, thus failing to ensure the sealing effect of the valve core 1. In some embodiments of this application, the valve core 1 moves in the first direction Y and abuts against or separates from the seal 412 to close or open the valve structure; if α is greater than 180°, the high-pressure environment will apply a certain pressure to the valve core 1 in the first direction Y and in the direction separated from the seal 412, thus failing to ensure the sealing effect of the valve core 1. The values ​​of α can be 90.1°, 90.2°, 90.3°, 90.4°, 90.5°, 92°, 94°, 96°, 98°, 100°, 102°, 104°, 106°, 108°, 110°, 102°, 104°, 106°, 108°, 120°, 122°, 124°, 126°, 128°, 130°, 132°, 133°, 134°, 135°, 136°, 138°, 140°, 142°, 144°, 146°, 148°, 150°, 152°, 154°, 156°, 158°, 160°, etc. 162°, 164°, 166°, 168°, 170°, 172°, 174°, 176°, 178°, 179.5°, 179.6°, 179.7°, 179.8°, 179.9°.The value of α is not limited to the listed values; other unlisted values ​​within this range also apply. In some embodiments of this application, one end of the pressure-bearing surface 102A is connected to one end of the first outer surface 101A. This arrangement ensures that the pressure applied to the valve core 1 in the closing direction by the high-pressure environment is located on the pressure-bearing surface 102A, thereby ensuring the sealing effect of the valve core 1. Furthermore, the pressure-bearing surface 102A is also an inclined surface, which can reduce turbulence or flow resistance of the medium flowing in the valve structure. In some embodiments of this application, at least a portion of the end where the pressure-bearing surface 102A is connected to the first outer surface 101A is an arc surface. By setting the end where the pressure-bearing surface 102A is connected to the first outer surface 101A to be an arc surface, stress concentration on the valve core 1 can be reduced, and the strength of the valve core 1 can be improved. At the same time, the arc surface design can also simplify the processing technology, thereby reducing the production cost of the valve core 1. In some embodiments of this application, the connecting portion 101 has a groove 2; wherein, the groove 2 extends from the first outer surface 101A into the interior of the connecting portion 101; by providing the groove 2, the groove 2 has a groove wall facing the pressurizing portion 102, and the high-pressure environment applies a certain pressure to the groove wall of the groove 2 facing the pressurizing portion 102, thereby providing pressure to the valve core 1 in the closing direction, thereby improving the sealing effect of the valve core 1. It should be further noted that the closing direction is the direction in which the valve core 1 moves towards the sealing element 412 in the first direction Y, and the opening direction is the direction in which the valve core 1 moves away from the sealing element 412 in the first direction Y. In some embodiments of this application, the groove wall of the groove 2 is also connected to the pressure-bearing surface 102A; wherein, since the materials and roughness of the connecting portion 101 and the pressurizing portion 102 of the valve core 1 are different, the groove 2 is provided on the side of the connecting portion 101 near the pressurizing portion 102 to facilitate the manufacturing and processing of the valve core 1. In some embodiments of this application, the pressurizing part 102 has a second outer surface 102B, which is connected to the end of the pressure-bearing surface 102A away from the first outer surface 101A. By further providing the second outer surface 102B on the pressurizing part 102, it is convenient to process the valve core 1. At the same time, since the inlet 22 of the valve structure is located on the side of the valve core 1 in the second direction X and communicates with the valve cavity 5, the second outer surface 102B can also provide a certain buffering effect when the fluid enters the valve structure from the inlet 22 of the valve structure.HK 20134899 A 9 Furthermore, if the valve core 1 does not have a second outer surface 102B, the pressure-bearing surface 102A is located close to the seal 412 in the first direction Y. When the valve structure switches from the closed state to the open state, the pressure-bearing surface 102A is close to the valve port 6 and allows the medium to pass through. Since the pressure-bearing surface 102A is a slope, when the medium flows from the pressure-bearing surface 102A and the gap between the valve core 1 and the seal 412 to the valve port 6, turbulence and flow resistance are easily generated, thereby affecting the working stability of the valve structure. In some embodiments of this application, the pressurizing part 102 also has an end face 102C; wherein, the end face 102C is located at the end of the pressurizing part 102 away from the connecting part 101 and is connected to the second outer surface 102B; wherein, the end face 102C is used to abut against the seal 412, thereby causing the valve structure to be in the closed state. The end face 102C has a certain area, thereby increasing the contact area between the valve core 1 and the seal 412, and thus improving the sealing performance of the valve core 1. Referring to Figure 5, in some embodiments of this application, the end face 102C includes a plane 1021 and an arc surface 1022 connected to each other; the plane 1021 is connected to the second outer surface 102B through the arc surface 1022; wherein, the plane 1021 of the end face 102C is used to abut against the seal 412 to close the valve structure, and the plane 1021 is connected to the second outer surface 102B through the arc surface 1022, so as to facilitate deburring and other processing operations at the connection between the end face 102C and the second outer surface 102B. In some embodiments of this application, the connecting part 101 and the pressurizing part 102 are connected in the first direction Y; in the second direction X perpendicular to the first direction Y, the maximum distance between the outer contour of the connecting part 101 and the outer contour of the pressurizing part 102 is L1; the radius of the circle containing the arc surface 1022 is R1; wherein, L1 and R1 satisfy: 0.03mm≤R1≤L1; in this embodiment, by setting R1 to satisfy this range, it is convenient to perform rounding processing between the end face 102C and the second outer surface 102B, while avoiding excessive pressure on the valve core 1 in the valve opening direction due to excessive R1 size, thus affecting the sealing performance of the valve core 1. Understandably, since the arc surface 1022 is curved, at least a portion of the arc surface 1022 will be spaced from the seal 412, and the high-pressure environment will apply pressure in the valve opening direction to the portion of the arc surface 1022 that is spaced from the seal 412. If R1 is less than 0.03mm, it is not easy to perform chamfering between the end face 102C and the second outer surface 102B.If R1 is greater than L1, there is a problem that the pressure applied to the valve core 1 by the high-pressure environment in the valve opening direction is too large due to the excessive size of R1, which in turn affects the sealing performance of the valve core 1. The pressure applied to the valve core 1 in the valve closing direction by the high-pressure environment provided by the arc surface 1022 is all located on the pressure bearing surface 102A, thereby ensuring the sealing effect of the valve core 1. In some embodiments of this application, the pressure part 102 has a cavity 3; wherein, the thickness of the end of the pressure part 102 HK 20134899 A 10 near the connecting part 101 is greater than the thickness of the end of the pressure part 102 away from the connecting part 101; this setting reduces the weight of the valve core 1, thereby saving the manufacturing cost of the valve core 1. Meanwhile, since the end of the pressure-applying part 102 near the connecting part 101 mainly serves to connect the connecting part 101, and the end of the pressure-applying part 102 away from the connecting part 101 mainly serves to seal, this arrangement increases the contact area between the pressure-applying part 102 and the connecting part 101, thus providing strength to the valve core 1 while reducing its weight. In some embodiments of this application, the thickness of the pressure-applying part 102 gradually decreases in the direction away from the connecting part 101. This arrangement makes the thickness dimension of the valve core 1 in the pressure-applying part 102 in the second direction X transition smoothly in the first direction Y, facilitating the manufacturing process of the valve core 1 using tooling. Similarly, this arrangement also reduces the weight of the valve core 1, thereby saving manufacturing costs. In some embodiments of this application, the pressurizing part 102 has an inner surface 102D forming a cavity 3; wherein the extending direction of the inner surface 102D is inclined relative to the first direction Y; this is configured such that the cavity 3 of the pressurizing part 102 is for the insertion of assembly tooling, thereby enabling the valve core 1 to be assembled in the valve structure. By providing an inclined inner surface 102D, collision interference between the assembly tooling and the valve core 1 when inserted into the cavity 3 is avoided, thus preventing damage to the product. In some embodiments of this application, the interior of the connecting part 101 is also hollow and communicates with the cavity 3, to further reduce the weight of the valve core 1, thereby saving the manufacturing cost of the valve core 1. This application also proposes a valve structure, which includes a valve body 4 and a valve core 1. The valve body 4 has a valve cavity 5 and a valve port 6 communicating with the valve cavity 5. The valve core 1 is movably disposed in the valve cavity 5 to open or close the valve port 6. As described above, since this valve structure adopts all the technical solutions of all the above embodiments, it has at least the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.In this embodiment, when valve port 6 is closed by valve core 1, valve cavity 5 is in a high-pressure environment, and valve port 6 is in a low-pressure environment. In some embodiments of this application, valve body 4 includes valve seat assembly 41, valve port 6 is formed on valve seat assembly 41, and valve core 1 is disposed on one side of valve seat assembly 41 in the first direction Y. Valve core 1 can move in the first direction Y and separate from or abut against valve seat assembly 41 to open or close valve port 6. That is, in this embodiment, the cooperation between valve core 1 and valve seat assembly 41 allows valve cavity 5 to communicate with valve port 6 or valve cavity 5 to be spaced from valve port 6, thereby realizing the opening and closing of the valve structure. Valve core 1 can abut against valve seat assembly 41 in the first direction Y, meaning the contact position between valve core 1 and valve seat assembly 41 is also subject to the abutment force of valve core 1, thereby ensuring the reliability of the seal between valve core 1 and valve seat assembly 41. In some embodiments of this application, the valve seat assembly 41 includes a valve seat 411 and a seal 412. A valve port 6 is formed on the valve seat 411; the seal 412 is disposed on the valve seat 411. A valve core 1 is disposed on one side of the valve seat 411 or the seal 412 in the first direction Y. That is, in this embodiment, the valve core 1 opens or closes the valve port 6 by separating from or abutting against the valve seat 411 or the seal 412 in the first direction Y, thereby realizing the opening and closing of the valve structure. In some embodiments of this application, the valve core 1 is disposed on one side of the valve seat 411 in the first direction Y and can abut against the valve seat 411. The seal 412 is disposed on the valve seat 411 and located inside the valve core 1, thereby improving the sealing performance between the valve core 1 and the valve seat assembly 41. In some embodiments of this application, at least one of the valve core 1 and the seal 412 is an elastic element. By providing that at least one of the valve core 1 and the seal 412 is an elastic element, when the valve core 1 and the seal 412 abut, at least one of the valve core 1 and the seal 412 can undergo elastic deformation, thereby increasing the contact area between the valve core 1 and the seal 412, and thus improving the sealing performance between the valve core 1 and the valve seat assembly 41. In some embodiments of this application, the valve structure also includes a drive assembly 7, which is configured to drive the valve core 1 to move in a first direction Y, so that the valve core 1 separates from or abuts against the valve seat assembly 41; that is, in this embodiment, by providing a drive assembly 7 in the valve structure, the valve core 1 is driven to move within the valve body 4.The form in which the drive assembly 7 drives the valve core 1 is not limited; it can be mechanically driven, electromagnetically driven, etc. In some embodiments of this application, the valve core 1 has a first position and a second position. When the valve core 1 is in the first position, it abuts against the valve seat assembly 41; when the valve core 1 is in the second position, the valve body 4 is separated from the valve seat assembly 41. The drive assembly 7 includes an output part 71, which is movably disposed within the valve body 4 along the first direction Y and is linked with the valve core 1 to drive the valve core 1 to switch between the first position and the second position. That is, in this embodiment, the movement of the output part 71 in the first direction Y enables the valve core 1 to move in the first direction Y, i.e., the valve core 1 can move along the first direction Y with the output part 71. In some embodiments of this application, the valve core 1 is connected to the output section 71 and is movable relative to the output section 71 in a first direction Y; the drive assembly 7 includes a first elastic member 72 disposed between the output section 71 and the valve core 1. The first elastic member 72 has a first compression state and a second compression state. The compression amount of the first elastic member 72 in the first compression state is less than the compression amount of the first elastic member 72 in the second compression state. When the first elastic member 72 is in the first compression state, the output section 71 and the valve core 1 are relatively fixed, and the output section 71 can drive the valve core 1 to move between a first position and a second position. When the valve core 1 is in the first position and the output section 71 moves relative to the valve core 1, the first elastic member 72 is in the second compression state. HK 20134899 A 12 In the above embodiment, the valve core 1 and the output part 71 are elastically connected by a first elastic member 72. When the external force on the first elastic member 72 is less than the minimum compressive force of the first elastic member 72 or when the first elastic member 72 is not subjected to external force, the first elastic member 72 will not compress. At this time, the valve core 1 and the output part 71 maintain a relatively fixed relationship. Therefore, the movement of the output part 71 in the first direction Y can synchronously drive the valve core 1 to move in the first direction Y, thereby realizing the opening and closing of the valve structure. When the valve core 1 is in the first position, if the output part 71 continues to move in the valve closing direction, the first elastic member 72 will be compressed, that is, it will switch from the first compression state to the second compression state. At this time, the position of the valve core 1 is fixed, but the valve core 1 will not interfere with the movement of the output part 71, thereby maintaining a safety margin between the valve core 1 and the output part 71, and avoiding the output part 71 from being in the first position when the valve core 1 is in the first position. The continuous movement caused damage to the internal structure of the valve.Meanwhile, in the above embodiments, if the pressure applied to the valve core 1 by the high-pressure environment is too large, causing the valve core 1 to move relative to the output part 71, under the action of the first elastic member 72, the output part 71 will not be affected by the movement of the valve core 1, thus maintaining its original position; in this way, the accuracy of valve structure adjustment is ensured. In some embodiments of this application, the output part 71 has a mounting cavity 8 on the side near the valve core 1, and at least a portion of the valve core 1 is located in the mounting cavity 8; the drive assembly 7 also includes a limiting member 73, which is located in the mounting cavity 8 and can move along the first direction Y. The limiting member 73 is fixed to the valve core 1 to restrict the separation of the valve core 1 from the output part 71; wherein, the first elastic member 72 is disposed between the limiting member 73 and the cavity wall of the mounting cavity 8. In this embodiment, the valve core 1 and the limiting member 73 are riveted together to ensure a secure fixation between them. Furthermore, by extending a portion of the valve core 1 into the mounting cavity 8 of the output section 71, the internal components of the valve structure are assembled compactly, thereby effectively improving the space utilization within the valve structure. It is understood that because the limiting member 73 can move within the mounting cavity 8, the valve core 1 connected to the limiting member 73 can move relative to the output section 71. In some embodiments of this application, the drive assembly 7 further includes a mounting base 74 and a rotating member 75. The mounting base 74 is fixedly disposed within the valve body 4, and the output portion 71 is screwed to the mounting base 74. The rotating member 75 is rotatably disposed within the valve body 4 and is linked with the output portion 71. The output portion 71 rotates with the rotating member 75 and is movable in the first direction Y. That is, in this embodiment, by driving the output portion 71 to rotate, the threaded guide between the output portion 71 and the mounting base allows the output portion 71 to move in the first direction Y while rotating. In one embodiment of this application, the rotating member 75 is relatively fixed to the output portion 71, and the rotating member 75 is movable in the first direction Y while rotating. In another embodiment of this application, the output portion 71 can rotate with the rotating member 75 and is movable relative to the rotating member 75 in the first direction Y. In some embodiments of this application, the limiting member 73 includes a bearing, the inner ring of which is fixed to the valve core 1, and the outer ring of which is connected to the first elastic member 72. In this embodiment, by providing a bearing to connect the valve core 1, the performance of the valve core 1 is utilized so that the valve core 1 does not rotate with the output part 71 when it moves along the first direction Y, thereby reducing the friction between the valve core 1 and the valve body 4 and improving the service life of the valve structure.In some embodiments of this application, the drive assembly 7 further includes a connector 76, which is fixedly connected to the limiting member 73. The connector 76 abuts against the first elastic member 72, and at least a portion of the connector 76 is located inside the first elastic member 72. By providing a connection between the first elastic member 72 and the connector 76, with at least a portion of the connector 76 located inside the first elastic member 72, the connector 76 limits the position of the first elastic member 72, preventing displacement of the first elastic member 72 within the mounting cavity 8. In some embodiments of this application, the first elastic member 72 extends along a first direction Y and is disposed within the mounting cavity 8. In some embodiments of this application, the drive assembly 7 further includes a second elastic member 77 disposed within the valve body 4 and abutting against the valve core 1, configured to drive the valve core 1 to move from a second position to a first position. In this embodiment, through the action of the second elastic member 77, when the output portion 71 moves in the valve closing direction, the second elastic member 77 can simultaneously abut against the valve core 1 moving in the valve closing direction, thereby reducing the drive power consumption of the valve structure. Simultaneously, when the valve core 1 is in the first position, the second elastic member 77 applies a certain pressure to the valve core 1, thereby preventing separation between the valve core 1 and the seal 412. Furthermore, the arrangement of the second elastic member 77 allows the first elastic member 72 to abut against the valve core 1 when the external force applied to it exceeds its minimum compression and it has a tendency to deform, thus preventing relative movement between the valve core 1 and the output portion 71. In some embodiments of this application, the second elastic member 77 is in a compressed state when the valve core 1 is in both the first and second positions. In some embodiments of this application, the types of the first elastic element 72 and the second elastic element 77 are not limited; they can be elastic washers or springs, etc. In some embodiments of this application, both the first elastic element 72 and the second elastic element 77 are springs.Please refer to Figures 6 and 7. In some embodiments of this application, the valve structure includes a valve seat assembly 41, a valve housing 42, a throttling section 9, and a valve core 1. The valve seat assembly 41 has a valve port 6. The valve housing 42 is connected to the valve seat assembly 41 and has a valve cavity 5 communicating with the valve port 6. The throttling section 9 is located in the valve cavity 5 and fixed relative to the valve seat assembly 41. The valve core 1 is movably disposed in the valve cavity 5. The valve core 1 has a third position and a fourth position. When the valve core 1 is in the third position and the fourth position, the valve core 1 is separated from the valve seat assembly 41 to open the valve port. A first channel 10 is formed between the valve core 1 and the valve seat assembly 41 at a distance. A second channel 11 is formed between the valve core 1 and the throttling section 9 at a distance. The valve cavity 5, the second channel 11, the first channel 10, and the valve port 6 are sequentially connected. When in the third position, the flow area of ​​the first channel is equal to that of the second channel. During the movement of the valve core 1 from the third position to the fourth position, the flow area of ​​the second channel 11 is smaller than that of the first channel 10. Specifically, when the valve core is in the third and fourth positions, the valve structure is in the open state, allowing the medium to flow from the inlet 22 of the valve structure into the valve chamber 5, and then sequentially through the second channel 11 and the first channel 10 before exiting the valve structure from the valve port 6. During the valve opening process, a first channel 10 is formed between the valve core 1 and the valve seat assembly 41, and a second channel is formed between the valve core 1 and the throttling part 9. Since the medium needs to pass through the second channel 11 before flowing out from the first channel 10, the flow area of ​​the second channel 11 can control the flow rate of the medium. Therefore, when the valve core 1 moves from the first position to the second position, the flow area of ​​the second channel 11 is smaller than the flow area of ​​the first channel 10. Compared with the related technology, where the flow rate of the valve structure is directly controlled by the gap size between the valve core 1 and the valve seat 411, the valve structure in this embodiment can control the flow rate of the medium through the valve core 1 and the throttling part 9 when the valve structure is in the open state, so as to avoid sudden changes in the flow rate of the medium through the valve structure, making the flow rate through the valve structure easier to control, thereby ensuring the adjustment accuracy of the valve structure.In some embodiments of this application, the valve core 1 also has a first position. When the valve core is in the first position, the valve core 1 abuts against the valve seat assembly 41 to close the valve port 6. During the movement of the valve core 1 from the first position to the third position, the flow area of ​​the second channel 11 is greater than the flow area of ​​the first channel 10. That is, in this embodiment, due to the influence of assembly clearance and internal valve structure dimensions when the valve structure switches from the closed state to the open state, when the opening degree of the valve core 1 is small, the flow area of ​​the second channel 11 will be greater than the flow area of ​​the first channel 10, thus making the second channel 11 unable to play a flow regulation role. However, since the opening degree of the valve core 1 is small at this time, there will be no sudden change in flow. It is understood that after the valve core 1 moves from the first position to the third position, when the valve core 1 moves from the third position to the fourth position, it can still control the flow of the valve structure, and the flow area of ​​the second channel 11 when the valve core 1 moves from the third position to the fourth position is greater than the flow area of ​​the second channel 11 when the valve core 1 moves from the first position to the third position. In some embodiments of this application, when the valve core 1 is in the first position, the minimum distance between the throttling part 9 and the valve core 1 is L2; ​​wherein L2 satisfies: 0.01mm≤L2≤1mm; by setting L2 to satisfy this range, the throttling part 9 can perform a throttling function, thereby enabling the valve structure to perform a flow regulation function. However, due to the gap between the valve core 1 and the valve housing 42, the valve core 1 may experience shaking during operation. If L2 is less than 0.01mm, the valve core 1 may easily interfere with the throttling part 9 during its movement, potentially causing valve structure failure or damage to internal components. If L2 is greater than 1mm, the distance between the throttling part 9 and the valve core 1 is too large, and during valve opening, the flow area of ​​the second channel 11 cannot be less than the flow area of ​​the first channel 10, thus preventing the valve structure from having a flow regulation function.The values ​​of L2 can be 0.01mm, 0.02mm, 0.03mm, 0.04mm, 0.05mm, 0.07mm, 0.09mm, 0.11mm, 0.13mm, 0.15mm, 0.17mm, 0.19mm, 0.21mm, 0.23mm, 0.25mm, 0.27mm, 0.29mm, 0.31mm, 0.33mm, 0.35mm, 0.37mm, 0.39mm, 0.41mm, 0.43mm, 0.45mm, 0.47mm, 0.49mm, 0.51mm, 0.53mm, 0.55mm, 0.57mm, 0.59mm, 0.61mm, 0.63mm, 0.65mm, 0.67mm, and 0.69mm. 0.71mm, 0.73mm, 0.75mm, 0.77mm, 0.79mm, 0.81mm, 0.83mm, 0.85mm, 0.87mm, 0.89mm, 0.91mm, 0.93mm, 0.95mm, 0.96mm, 0.97mm, 0.98mm, 0.99mm, 1mm. The value of L2 is not limited to the listed values; other unlisted values ​​within this range also apply. In some embodiments of this application, during the movement of the valve core 1 from the third position to the fourth position, the flow area of ​​the second channel 11 gradually increases. That is, in this embodiment, as the valve core 1 moves away from the valve seat assembly 41, the flow area of ​​the first channel 10 between the valve core 1 and the valve seat assembly 41 increases, and the second flow area between the valve core 1 and the throttling part 9 also gradually increases, but remains smaller than the flow area of ​​the first channel 10. This allows the valve core 1 to correspond to different flow areas of the second channel 11 at different opening degrees, thereby making it easier to control the flow rate of the valve structure during the valve opening process and ensuring the adjustment accuracy of the valve structure. In some embodiments of this application, the valve core 1 moves along the first direction Y; that is, when the valve core 1 moves away from the valve seat assembly 41 in the first direction Y, the medium flow rate within the valve structure increases; while when the valve core 1 moves closer to the valve seat assembly 41 in the first direction Y, the medium flow rate within the valve structure gradually decreases.In some embodiments of this application, the throttling section 9 has a first guide surface 91 facing the valve core 1, and the extension direction of the first guide surface 91 is inclined relative to the first direction Y. With this configuration, the distance between the first guide surface 91 and the valve core 1 gradually increases in the first direction Y, away from the valve seat assembly 41. Consequently, when the valve core 1 moves from the third position to the fourth position, the flow area of ​​the second channel 11 between the valve core 1 and the first guide surface 91 gradually increases. This means that the flow rate of the valve structure during the valve opening process is easily controlled, ensuring the adjustment accuracy of the valve structure. It is understood that since the first guide surface 91 is a flat surface, the flow area of ​​the second channel 11 changes gradually when the valve core 1 switches between the third and fourth positions, without any abrupt changes. Please refer to Figures 3, 7, and 8. In some embodiments of this application, the valve core 1 has a circular cross-section, and the throttling section 9 is arranged around the valve core 1. The first direction Y is the axial direction of the valve core 1, and the second direction X is the radial direction of the valve core 1. The minimum radial dimension of the valve core 1 in the sealing position with the valve seat assembly 41 is L3. Wherein, when the opening degree of the valve core 1 is H, the flow area of ​​the first channel 10 is S3 = 2πL3 × H. When the valve structure is in the closed state, that is, when the valve core 1 is in the first position, the maximum radial dimension of the valve core 1 in the sealing position with the valve seat assembly 41 is L4, the minimum radial dimension of the throttling section 9 is L5, and the minimum distance between the throttling section and the valve core 1 is L6 = L5 - L4. The angle between the first guide surface and the radial line of the valve core 1 is β. When the opening degree of valve core 1 is H, the minimum distance between the throttling section 9 and valve core 1 is L7 = L6sinβ + Hcosβ; at this time, the flow area of ​​the second channel 11 is: S4 = πL7 × (2 × L4 + (L6 - L6cos2β + H × L7sin2β) / 2. When the opening degree of valve core 1 is any value, S4 < S3 is always satisfied. This allows the valve structure to have flow regulation function under the action of the flow regulating section, making the flow of the valve structure easy to control and ensuring the regulation accuracy of the valve structure.Please refer to Figures 7 to 9. In some embodiments of this application, the valve structure further includes a flow guide 12, which is located inside the valve body 4 and connected to the end of the throttling section 9 away from the valve core 1. The dimension of the flow guide 12 in the first direction Y is greater than the dimension of the throttling section 9 in the first direction Y. In this embodiment, since the flow guide 12 is connected to the end of the throttling section 9 away from the valve core 1, the distance between the flow guide 12 and the valve core 1 in the second direction X is greater than or equal to the distance between the throttling section 9 and the valve core 1 in the second direction X. When the valve core 1 moves along the first direction Y and is opposite to the throttling section 9 in the second direction X, the valve structure has a small flow rate regulation function. However, when the valve core 1 moves along the first direction Y and is opposite to the flow guide 12 in the second direction X, the gap between the valve core 1 and the flow guide 12 is larger, thus the valve core 1 and the flow guide 12... The flow area between them allows for a large amount of medium to pass through, thus meeting the flow requirements of the valve structure under high flow conditions. Furthermore, the guide portion 12 also plays a role in regulating the flow of the valve structure when the valve core 1 and the guide portion 12 are positioned opposite each other in the second direction X. In some embodiments of this application, in the second direction X perpendicular to the first direction Y, the distance between the guide portion 12 and the valve core 1 is greater than the distance between the throttling portion 9 and the valve core 1; that is, in this embodiment, when the valve core 1 moves along the first direction Y and is opposite the guide portion 12 in the second direction X, the flow area between the valve core 1 and the guide portion 12 is greater than the maximum value of the flow area of ​​the second channel 11, thus ensuring that when the valve core 1 moves to be opposite the guide portion 12 in the second direction X, it can meet the flow requirements of the valve structure under high flow conditions. In some embodiments of this application, the flow guide surface has a second flow guide surface 121, which faces the valve core 1 and is located on the side of the first flow guide surface 91 away from the first channel 10. The extension direction of the second flow guide surface 121 is inclined relative to the first direction Y. This arrangement ensures that when the valve core 1 moves in the first direction Y away from the valve seat assembly 41, the distance between the second flow guide surface 121 and the valve core 1 gradually increases, thereby gradually increasing the flow area between the second flow guide surface 121 and the valve core 1, thus enabling the valve structure to meet the high flow rate requirements under different operating conditions. It is understood that since the second flow guide surface 121 is a flat surface, the flow area between the valve core 1 and the second flow guide surface 121 changes gradually when the valve core 1 moves in the first direction Y away from the valve seat assembly 41, without any abrupt change.In some embodiments of this application, when the valve core 1 moves in the first direction Y away from the valve seat assembly 41 and is opposite to the flow guide 12 in the second direction X, the flow area between the second flow guide surface 121 and the valve core 1 is greater than or equal to the flow area of ​​the first channel 10, thereby meeting the flow requirements of the valve structure under high flow conditions. In some embodiments of this application, the slope of the second flow guide surface 121 is less than the slope of the first flow guide surface 91; with this configuration, when the valve core 1 moves the same distance in the first direction Y, the change in the flow area of ​​the second channel 11 is less than the change in the flow area between the second flow guide surface 121 and the valve core 1, thereby enabling the flow guide 12 to meet the flow requirements of the valve structure under high flow conditions. In some embodiments of this application, the throttling part 9, the flow guide 12, and the valve shell 42 are integrally formed to facilitate the assembly of the valve structure. In some embodiments of this application, the throttling section 9 is arranged around the valve core 1; this arrangement ensures that the medium flowing from the valve cavity 5 to the valve port 6 must pass through the second flow channel, thereby ensuring that the flow regulation of the valve structure is easily controlled and ensuring the sealing performance between the valve core 1 and the valve seat assembly 41. In some embodiments of this application, the valve seat assembly 41 includes a valve seat 411 and a seal 412. The valve seat 411 is connected to the valve body 4, and the valve port 6 is formed on the valve seat 411; the seal 412 is disposed on the valve seat 411; wherein, when the valve core 1 is in the first position, the valve core 1 abuts against the seal 412; that is, in this embodiment, the sealing performance of the valve structure is ensured by the mutual abutment between the valve core 1 and the seal 412. In some embodiments of this application, when the valve core 1 is in the third position, the valve core 1 and the seal 412 abut against each other in the first direction Y. In some embodiments of this application, at least a portion of the valve seat 411 is spaced apart from at least a portion of the throttling portion 9; wherein, the seal 412 is located between the valve seat 411 and the throttling portion 9; that is, in this embodiment, during valve structure assembly, the seal 412 is fixed within the valve structure through the cooperation between the throttling portion 9 and the valve seat 411. In some embodiments of this application, the throttling portion 9 and the valve seat 411 are respectively located on both sides of the seal 412 in the first direction Y; the throttling portion 9 is located on one side of the valve core 1 in the second direction X, thereby avoiding interference between the throttling portion 9 and the contact cooperation between the valve core 1 and the seal 412. In some embodiments of this application, the outer surface 16 of the seal 412 is also limited by the valve seat 411.In some embodiments of this application, the flow guide 12 is connected to the throttling part 9 and is also located on one side of the seal 412 in the first direction Y, so as to cooperate with the throttling part 9 to limit the seal 412. In some embodiments of this application, at least one of the valve seat 411 and the throttling part 9 is provided with at least one locking protrusion 13; wherein, the locking protrusion 13 abuts against the seal 412; that is, in this embodiment, by providing the locking protrusion 13, at least a portion of the locking protrusion 13 is embedded in the seal 412 to prevent the seal 412 from falling out between the throttling part 9 and the valve seat 411. In some embodiments of this application, at least one locking protrusion 13 is also provided on the flow guide 12. It should be further noted that when the valve core 1 is in the second position, the third position, or the fourth position, the valve structure is in the open state. Please refer to Figures 10 and 11. In some embodiments of this application, the valve structure includes a valve body 4, a valve core 1, and a seal 412. The valve body 4 has a valve port 6. The valve core 1 is movably disposed within the valve body 4. The seal 412 is disposed on the valve body 4 and surrounds the valve port 6. The seal 412 has a top surface 14 facing the valve core 1, a bottom surface 15 away from the valve core 1, and an outer surface 16 and an inner surface 17 connecting the top surface 14 and the bottom surface 15. The top surface 14 is used to abut against the valve core 1 to close the valve port 6, and the bottom surface 15, the outer surface 16, and the inner surface 17 all abut against the valve body 4. When the valve structure is in the closed state, the valve core 1 abuts against the top surface 14 of the seal 412. Besides the top surface 14 of the seal 412 that contacts the valve core 1, the bottom surface 15, outer surface 16, and inner surface 17 of the seal 412 are all abutted against by the valve body 4. That is, when the valve core 1 abuts against the top surface 14 of the seal 412, the seal 412 is less prone to creep due to the space constraint within the valve body 4, thereby improving the service life and stability of the valve structure. It should be further noted that because the seal 412 is arranged around the valve port 6, when the valve core 1 abuts against the seal 412, the sealing performance of the valve core 1 and the seal 412 on the valve structure is ensured.In some embodiments of this application, the valve body 4 includes a valve seat 411, and a valve port 6 is formed on the valve seat 411. At least a portion of the valve seat 411 is opposite to the valve core 1 in the direction of movement of the valve core 1 and is provided with a mounting groove 18. The sealing element 412 is located in the mounting groove 18, and the groove wall of the mounting groove 18 abuts against the bottom surface 15, the outer side surface 16, and the inner side surface 17. That is, in this embodiment, the sealing element 412 is disposed in the mounting groove 18 on the valve seat 411, and the groove wall of the mounting groove 18 abuts against the bottom surface 15, the outer side surface 16, and the inner side surface 17 of the sealing element 412. Therefore, when the valve core 1 abuts against the top surface 14 of the sealing element 412, the sealing element 412 is less prone to creep due to the space limitation of the mounting groove 18, thereby improving the service life and stability of the valve structure. In some embodiments of this application, the valve body 4 includes a valve seat 411 and a valve housing 42, with a valve port 6 formed on the valve seat 411; the valve housing 42 is connected to the valve seat 411, and has a valve cavity 5 communicating with the valve port 6; a valve core 1 is movably disposed within the valve cavity 5; at least a portion of the valve housing 42 is opposite to the valve core 1 in the direction of movement of the valve core 1 and is provided with a mounting groove 18; wherein, the sealing member 412 is located within the mounting groove 18, and the groove wall of the mounting groove 18 abuts against the bottom surface 15, the outer side surface 16, and the inner side surface 17; that is, in this embodiment, the sealing member 412 is disposed within the mounting groove 18 on the valve housing 42, and the groove wall of the mounting groove 18 abuts against the bottom surface 15, the outer side surface 16, and the inner side surface 17 of the sealing member 412, so that when the valve core 1 abuts against the top surface 14 of the sealing member 412, the sealing member 412... Creep is less likely to occur due to the space limitation of the mounting slot 18, thereby improving the service life and stability of the valve structure.In some embodiments of this application, the valve body 4 includes a valve seat 411 and a valve housing 42, with a valve port 6 formed on the valve seat 411; the valve housing 42 is connected to the valve seat 411, and the valve housing 42 has a valve cavity 5, which communicates with the valve port 6; the valve core 1 is movably disposed within the valve cavity 5; wherein at least a portion of the valve seat 411 and at least a portion of the valve housing 42 enclose a mounting groove 18, the opening of the mounting groove 18 being opposite to the valve core 1 in the direction of movement of the valve core 1; the sealing element 412 is located within the mounting groove 18, and the groove wall of the mounting groove 18 abuts against the bottom surface 15, the outer surface 16, and the inner surface 17; that is, in this embodiment, the valve seat 411 can form a mounting groove 18 when assembled with the valve housing 42, and the sealing element 412 is disposed within the mounting groove 18 formed when the valve seat 411 and the valve housing 42 are assembled, with the groove wall of the mounting groove 18 and the sealing element 412 being disposed within the mounting groove 18 formed when the valve seat 411 and the valve housing 42 are assembled. The bottom surface 15, outer surface 16, and inner surface 17 of the valve core 1 abut against each other, so that when the valve core 1 abuts against the top surface 14 of the seal 412, the seal 412 is less prone to creep due to the space limitation of the mounting groove 18, thereby improving the service life and stability of the valve structure. The form in which the valve seat 411 and the valve body 42 combine to form the mounting groove 18 is not limited. Please refer to Figures 11 and 12. In some embodiments of this application, the valve seat 411 includes a first segment 4111 and a second segment 4112. At least a portion of the first segment 4111 is located within the valve cavity 5 and connected to the valve housing 42. The second segment 4112 is connected to the portion of the first segment 4111 located within the valve cavity 5 and is also located within the valve cavity 5. At least a portion of the second segment 4112 is spaced apart from the cavity wall of the valve cavity 5. The first segment 4111, the second segment 4112, and the cavity wall of the valve cavity 5 enclose and form a mounting groove 18. That is, in this embodiment, the second segment 4112 of the valve seat 411 abuts against the inner surface 17 of the seal 412, the first segment 4111 of the valve seat 411 abuts against the bottom surface 15 of the seal 412, and the outer surface 16 of the valve seat 411 abuts against the valve housing 42. The valve seat 411 and the valve body 42 cooperate with each other, so that when the valve core 1 abuts against the top surface 14 of the seal 412, the seal 412 is less prone to creep due to the space limitation of the mounting groove 18, thereby improving the service life and stability of the HK 20134899 A 20 valve structure.In some embodiments of this application, the valve structure further includes a throttling section 9, which is connected to the valve housing 42 and abuts against the top surface 14 of the seal 412. The throttling section 9 further reduces the exposed area of ​​the seal 412, making the seal 412 less prone to creep, thereby improving the service life and stability of the valve structure. In some embodiments of this application, the valve structure also includes a flow guide section 12 connecting the throttling section 9 and the valve housing 42, which also abuts against the top surface 14 of the seal 412. The flow guide section 12 further reduces the exposed area of ​​the seal 412, making the seal 412 less prone to creep, thereby improving the service life and stability of the valve structure. In some embodiments of this application, the throttling portion 9 and the guiding portion 12 are both located on one side of the valve core 1 in the second direction X, thereby avoiding interference between the throttling portion 9 and the guiding portion 12 and the contact between the valve core 1 and the seal 412. Referring to Figures 11 to 13, in some embodiments of this application, one of the valve body 4 and the seal 412 is provided with a foolproof part 19, and the other is provided with a relief groove 20 that matches the shape of the foolproof part 19. By providing the foolproof part 19 and the relief groove 20 on the valve body 4 and the seal 412 respectively, the seal 412 can be easily assembled to the set position, avoiding the problem of incorrect installation of the seal 412 within the valve structure. In some embodiments of this application, the foolproof part 19 is provided on the valve shell 42, and the relief groove 20 is formed on the seal 412. In some embodiments of this application, the rotating component 75 is a rotor assembly, which is disposed inside the valve cover 44. A stator (not shown in the figure) is disposed outside the valve cover 44. The stator can generate a rotating magnetic field. The main body of the rotor assembly is made of magnetic material. Under the traction of the rotating magnetic field of the stator, the rotor assembly rotates. The rotor assembly is fixedly connected to the output part 71. When the rotor assembly rotates, it can drive the output part 71 to rotate together. In some embodiments of this application, the valve structure includes a stop assembly, which is fixedly connected to the valve body 4. The rotor assembly is provided with a stop lever, which cooperates with the stop assembly to limit the number of rotations of the rotor assembly. In some embodiments of this application, the mounting base 74 is provided with an internal thread, and the output part 71 is provided with an external thread. The output part 71 is screwed onto the mounting base 74 and fixedly connected to the rotating member 75, thereby switching the rotational motion of the rotating member 75 into the linear motion of the output part 71. That is, the output part 71 can move in the first direction Y to drive the piston to move in the first direction Y, thereby switching the valve structure between the open state and the closed state.In some embodiments of this application, the valve housing 42 is connected to the valve cover 44 via the valve body 43. A portion of the valve core 1 HK 20134899 A 21 is located inside the valve body 43, and another portion is located inside the valve housing 42. The valve housing 42, valve body 43, valve cover 44, and valve seat 411 constitute the main housing portion of the valve structure. Disassembling the valve body 4 into the valve housing 42, valve body 43, valve cover 44, and valve seat 411 also facilitates the assembly of components within the valve structure. In some embodiments of this application, a sealing ring is also provided between the sealing element 412 and the valve seat 411 to prevent leakage of the medium from the gap between the sealing element 412 and the valve seat 411. In some embodiments of this application, a connecting ring 21 is also fixedly fitted onto the valve body 43. The connecting ring 21 has external threads on its circumference to facilitate connection between the valve structure and other components. This application also proposes a vehicle, including a valve core 1 and a valve structure, as described above. Since this vehicle adopts all the technical solutions of the above embodiments, it at least possesses the beneficial effects brought about by the technical solutions of the above embodiments, and will not be elaborated further here. The vehicle can be a gasoline-powered vehicle, a plug-in hybrid electric vehicle, or a new energy vehicle, etc., and this application does not specifically limit it. In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified. In the above embodiments, the descriptions of each embodiment have different focuses; parts not detailed in a certain embodiment can be referred to in the relevant descriptions of other embodiments. The embodiments, implementation methods, and related technical features of this application can be combined and substituted with each other without conflict. The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application. HK 20134899 A 1 Claim 1: A valve core disposed within a valve structure, characterized in that the valve core includes a connecting portion and a pressurizing portion connected to each other and is configured to open or close the valve structure; wherein at least a portion of the outer contour of the pressurizing portion protrudes beyond the outer contour of the connecting portion.2. The valve core according to claim 1, wherein the connecting portion and the pressurizing portion are connected in a first direction; in a second direction perpendicular to the first direction, the maximum distance between the outer contour of the connecting portion and the outer contour of the pressurizing portion is L1; wherein L1 satisfies: 0.1mm≤L1≤0.5mm. 3. The valve core according to claim 1, wherein the connecting portion has a first outer surface, the first outer surface being at least a portion of the outer contour of the connecting portion; the pressurizing portion has a pressure-bearing surface, the pressure-bearing surface being at least a portion of the outer contour of the pressurizing portion; the pressure-bearing surface completely protrudes from the first outer surface. 4. The valve core according to claim 3, wherein at least a portion of the pressure-bearing surface is inclined relative to the first outer surface. 5. The valve core according to claim 4, wherein the angle of inclination of the pressure-bearing surface relative to the first outer surface is an obtuse angle. 6. The valve core according to claim 4, wherein one end of the pressure-bearing surface is connected to one end of the first outer surface. 7. The valve core according to claim 6, wherein at least a portion of the end of the pressure-bearing surface connected to the first outer surface is an arc surface. 8. The valve core according to claim 3, wherein the connecting portion has a groove; wherein the groove extends from the first outer surface to the interior of the connecting portion. 9. The valve core according to claim 8, wherein the groove wall is further connected to the pressure-bearing surface. 10. The valve core according to claim 3, wherein the pressurizing portion has a second outer surface, the second outer surface being connected to the end of the pressure-bearing surface away from the first outer surface; wherein the second outer surface extends from the pressure-bearing surface in a direction away from the pressure-bearing surface. 11. The valve core according to claim 10, wherein the pressurizing portion further has an end face; wherein the end face is located at the end of the pressurizing portion away from the connecting portion and is connected to the second outer surface. 12. The valve core according to claim 11, wherein the end face comprises a plane and an arc surface connected to each other; wherein the plane is connected to the second outer surface through the arc surface. 13. The valve core according to claim 12, characterized in that the connecting part is connected to the pressurizing part in a first direction; in a second direction perpendicular to the first direction, the maximum distance between the outer contour of the connecting part and the outer contour of the pressurizing part is L1; the radius of the circle containing the arc surface is R1; wherein, L1 and R1 satisfy: 0.03mm≤R1≤L.14. The valve core according to any one of claims 1 to 13, wherein the pressurizing portion has a cavity; wherein the thickness of the pressurizing portion at the end near the connecting portion is greater than the thickness of the pressurizing portion at the end away from the connecting portion. 15. The valve core according to claim 14, wherein the thickness of the pressurizing portion gradually decreases in the direction away from the connecting portion. 16. The valve core according to claim 14, wherein the pressurizing portion has an inner surface forming the cavity; wherein the extending direction of the inner surface is inclined relative to a first direction. 17. A valve structure, comprising: a valve body having a valve cavity and a valve port communicating with the valve cavity; and a valve core according to any one of claims 1 to 16, movably disposed within the valve cavity to open or close the valve port. 18. The valve structure according to claim 17, wherein the valve body comprises: a valve seat assembly, the valve port being formed in the valve seat assembly, and the valve core being disposed on one side of the valve seat assembly in a first direction; wherein the valve core is movable in the first direction and can separate from or abut against the valve seat assembly to open or close the valve port. 19. The valve structure according to claim 18, wherein the valve seat assembly comprises: a valve seat, the valve port being formed in the valve seat; and a sealing element disposed on the valve seat; wherein the valve core is disposed on one side of the valve seat or the sealing element in the first direction. 20. The valve structure according to claim 19, wherein at least one of the valve core and the sealing element is an elastic element. HK 20134899 A 3 21. The valve structure according to any one of claims 18 to 20, wherein the valve structure further comprises: a drive assembly configured to drive the valve core to move in the first direction, such that the valve core separates from or abuts against the valve seat assembly. 22. The valve structure according to claim 21, characterized in that the valve core has a first position and a second position; when the valve core is in the first position, the valve core abuts against the valve seat assembly; when the valve core is in the second position, the valve body is separated from the valve seat assembly; the driving assembly includes: an output section, movably disposed in the valve body along the first direction and linked with the valve core, to drive the valve core to switch between the first position and the second position.23. The valve structure according to claim 22, characterized in that the valve core is connected to the output portion and is movable relative to the output portion in the first direction; the driving assembly includes: a first elastic member disposed between the output portion and the valve core, the first elastic member having a first compression state and a second compression state, the compression amount of the first elastic member in the first compression state being less than the compression amount of the first elastic member in the second compression state; wherein, when the first elastic member is in the first compression state, the output portion and the valve core are relatively fixed, and the output portion is capable of driving the valve core to move between the first position and the second position; when the valve core is in the first position and the output portion moves relative to the valve core, the first elastic member is in the second compression state. 24. The valve structure according to claim 23, characterized in that the output portion has a mounting cavity on the side near the valve core, and at least a portion of the valve core is located within the mounting cavity; the driving assembly further includes: a limiting member located within the mounting cavity and movable along the first direction, the limiting member being fixed to the valve core to restrict the valve core from separating from the output portion; wherein the first elastic member is disposed between the limiting member and the cavity wall of the mounting cavity. 25. The valve structure according to claim 24, characterized in that the driving assembly further includes: a mounting seat fixedly disposed within the valve body, the output portion being screwed to the mounting seat; and a rotating member rotatably disposed within the valve body and linked with the output portion; wherein the output portion rotates with the rotating member and is movable in the first direction. 26. The valve structure according to claim 25, characterized in that the limiting member includes a bearing, the inner ring of the bearing being fixed to the valve core, and the outer ring of the bearing being connected to the first elastic member. 27. The valve structure according to claim 24, wherein the drive assembly further comprises: a connecting member fixedly connected to the limiting member; wherein the connecting member abuts against the first elastic member, and at least a portion of the connecting member is located inside the first elastic member. 28. The valve structure according to any one of claims 22 to 27, wherein the drive assembly further comprises: a second elastic member disposed within the valve body and abutting against the valve core, configured to drive the valve core to move from the second position to the first position. 29. A vehicle, comprising a valve core as described in any one of claims 1 to 16 or a valve structure as described in any one of claims 17 to 28.HK 20134899 A 1 Instruction Manual Figure 41(4) 411 412 5 6 71 72 73 74 75 76 77 8 7 1 42(4) C 43(4) 44(4) 21 22 XY Figure 1 HK 20134899 A 2 AB 71 8 72 76 73 1 3 77 43 XY Figure 2 HK 20134899 A 3 1 101 101A 102 102A 102B 102C 102D 2 3 L3 L4 XY Figure 3 HK 20134899 A 4 A 101 102 1 3 101A 2 α 102A 102B 102C Figure 4 102D L1 1021 1022 102C R1 102 102B 102D B Figure 5 HK 20134899 A 5 9 91 12 121 1 412 411 42 L2 C 13 Figure 6 HK 20134899 A 6 11 10 H 91 121 9 12 412 411 42 β Figure 7 HK 20134899 A 7 22 22 22 542 9 12 412 411 6 XY L5 Figure 8 HK 20134899 A 8 22 542 22 22 9 12 XY Figure 9 HK 20134899 A 9 41(4) 411 412 6 5 1 42(4) 43(4) 8 44(4) 21 22 71 72 73 74 75 76 77 7 XY Figure 10 HK 20134899 A 10 18 19 5 42(4) 6 4111 4112 411 412 41 XY Figure 11 411 4111 4112 6 XY Figure 12 HK 20134899 A 11 14 1516 17 20 412 Figure 13 HK 20134899 A.

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