Valve element assembly, one-way valve and vehicle

Abstract

The utility model relates to a valve element assembly, a one-way valve and a vehicle, the valve element assembly comprises a valve element, and the valve element comprises a main body part and a flow guide part. The main body part is matched with a valve body of the one-way valve to open or close the one-way valve; the diversion part is connected with the body part. And the flow guide part is configured to guide fluid flowing out when the one-way valve is opened. The flow guide part is arranged in the valve element, the flow guide part can guide the flowing direction of fluid flowing out when the valve is opened, the flowing path of the fluid is optimized, the fluid can pass through the bottom of the valve element more stably, and therefore turbulent flow and vibration formed by the fluid at the bottom of the valve element are reduced, and high-frequency noise generated by fluid disturbance is reduced; the working stability of the one-way valve is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronics, and in particular to a valve core assembly, a one-way valve and a vehicle. BACKGROUND

[0002] The one-way valve in the related art realizes the one-way conduction function of the one-way valve through the cooperation between the valve body and the valve core assembly, and realizes the reset between the valve body and the valve core through the elastic reset member, so as to facilitate the repeated use of the one-way valve. However, when the spring force provided by the elastic reset member cannot overcome the low fluid pressure in the pipeline, the valve core cannot stably remain in the closed or open position and repeatedly switch between opening and closing the valve. In the process of repeatedly opening and closing the valve, the flow state of the fluid changes sharply, causing turbulence and vibration, which easily produces high-frequency noise, resulting in reduced working stability of the one-way valve. CONTENT OF THE UTILITY MODEL

[0003] The valve core assembly, the one-way valve and the vehicle provided by the embodiments of the present application reduce the high-frequency noise produced in the process of repeatedly opening and closing the valve, to at least partially solve the above technical problems.

[0004] In order to achieve the above-mentioned purpose, according to the first aspect of the present application, a valve core assembly is provided, comprising a valve core, the valve core comprising:

[0005] a main body part for cooperating with a valve body of a one-way valve to open or close the one-way valve; and

[0006] a flow guide part connected with the main body part;

[0007] wherein the flow guide part is configured to guide the fluid flowing out when the one-way valve is opened.

[0008] In some embodiments, the flow guide part comprises a flow guide surface, the main body part comprises a first surface connected with the flow guide part, and the flow guide surface is arranged obliquely relative to the first surface to guide the fluid flowing out when the one-way valve is opened.

[0009] In some embodiments, the angle between the flow guide surface and the first surface is an obtuse angle.

[0010] In some embodiments, the flow guide surface comprises:

[0011] a first flow guide sub-surface; and

[0012] a second flow guide sub-surface connected with the first flow guide sub-surface;

[0013] wherein the first surface is smoothly and transitionally connected with the first flow guide sub-surface and the second flow guide sub-surface.

[0014] In some embodiments, the flow guide surface further comprises:

[0015] a third sub-guide surface connected to a side of the second sub-guide surface away from the first sub-guide surface; and

[0016] a second surface connected to a side of the third sub-guide surface away from the first sub-guide surface;

[0017] wherein the second sub-guide surface is smoothly connected to the second surface through the third sub-guide surface.

[0018] In some embodiments, the number of the first sub-guide surface, the second sub-guide surface and the third sub-guide surface is multiple respectively.

[0019] wherein the multiple first sub-guide surfaces are connected to each other to form a circumferential surface, the multiple second sub-guide surfaces are connected to each other to form a circumferential surface, the multiple third sub-guide surfaces are connected to each other to form a circumferential surface, and the multiple circumferential surfaces are connected to form the guide surface.

[0020] In some embodiments, the guide surface is any one or combination of a plane and an arc surface.

[0021] In some embodiments, the guide portion protrudes from the main body portion in a direction away from the main body portion, and the protruding direction of the guide portion is the same as the opening direction of the one-way valve.

[0022] In some embodiments, the valve core assembly further comprises:

[0023] a valve core rod connected to the valve core, for moving the valve core along the axial direction of the valve core rod between a first position and a second position under the action of an external force, so as to open or close the one-way valve;

[0024] when the valve core is located at the first position, there is a gap between the valve body and the valve core, the fluid flows out through the gap, and the one-way valve is opened;

[0025] when the valve core is located at the second position, the valve body and the valve core abut, and the one-way valve is closed.

[0026] In some embodiments, one end of the valve core rod is embedded in the valve core and connected to the valve core.

[0027] In some embodiments, one end of the valve core rod is injection molded with the valve core.

[0028] In some embodiments, the guide portion is provided with an opening for injecting a material for forming the valve core.

[0029] In some embodiments, the valve core rod comprises:

[0030] a first rod portion; and

[0031] a second rod portion located on a side surface of the first rod portion away from the main body portion and connected with the first rod portion, the first rod portion and the second rod portion being embedded in the valve core;

[0032] wherein a dimension of the second rod portion in a direction perpendicular to an axial direction of the valve core rod is greater than a dimension of the first rod portion in the direction perpendicular to the axial direction of the valve core rod.

[0033] In some embodiments, at least a portion of the first rod portion is embedded in the main body portion, and at least a portion of the second rod portion is embedded in the flow guide portion.

[0034] In some embodiments, the first rod portion is provided with a through hole penetrating through an outer circumferential side of the first rod portion, and an inner wall of the through hole is in contact with the valve core.

[0035] In some embodiments, an outer circumferential side of the second rod portion is provided with a texture pattern to increase a contact area between the valve core rod and the valve core.

[0036] In some embodiments, the valve core assembly further comprises:

[0037] a third rod portion connected with the first rod portion;

[0038] wherein a side surface of the main body portion away from the flow guide portion is provided with a groove, and an end of the third rod portion connected with the first rod portion is accommodated in the groove.

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

[0040] a reset member sleeved on the valve core rod, the reset member being configured to provide an external force to the valve core rod to drive the valve core to move along an axial direction of the valve core rod between the first position and the second position.

[0041] In some embodiments, the valve core assembly further comprises:

[0042] a limiting member fixedly connected with an end of the valve core rod away from the valve core, the limiting member being configured to limit a movement stroke of the valve core relative to the valve body in the axial direction of the valve core rod.

[0043] In some embodiments, the limiting member is further threadedly connected with the end of the valve core rod away from the valve core.

[0044] According to a second aspect of the present application, a one-way valve is provided, the one-way valve comprising a valve core assembly as described above.

[0045] In some embodiments, the one-way valve further comprises:

[0046] The valve body, wherein the valve core assembly cooperates with the valve body to open or close the one-way valve.

[0047] In some embodiments, the valve body includes a first sub-valve body;

[0048] When the one-way valve is in the open state, there is a gap between the first sub-valve body and the main body, and fluid flows out from the gap.

[0049] When the one-way valve is in the closed state, the first sub-valve body abuts against the main body.

[0050] In some embodiments, the first sub-valve body includes a fourth sub-guide surface;

[0051] The main body includes a fifth sub-guide surface;

[0052] When the one-way valve is in the closed state, the fourth sub-guide surface and the fifth sub-guide surface abut against each other.

[0053] In some embodiments, the valve body further includes a second sub-valve body located on the side of the first sub-valve body near the valve core and spaced apart from the first sub-valve body, the second sub-valve body being disposed around the valve core rod to guide the valve core rod to move in its axial direction.

[0054] In some embodiments, the end of the reset member near the valve core is located between the second sub-valve body and the valve core rod, and abuts against the second sub-valve body.

[0055] According to a third aspect of this application, a vehicle is provided, including the valve core assembly or one-way valve as described above.

[0056] In the valve core assembly, check valve, and vehicle of this application embodiment, the valve core assembly includes a valve core, which includes a main body and a flow guide. The main body is used to cooperate with the valve body of the check valve to open or close the check valve. The flow guide is connected to the main body and is configured to guide the fluid flowing out when the check valve is opened. By providing a flow guide in the valve core, this application can guide the flow direction of the fluid flowing out when the valve is opened, optimize the flow path of the fluid, and make it pass through the bottom of the valve core more stably, thereby reducing the turbulence and vibration formed by the fluid at the bottom of the valve core, reducing the high-frequency noise caused by fluid disturbance, and improving the working stability of the check valve.

[0057] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0058] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. 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.

[0059] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0060] Figure 1 This is a side view of the valve core assembly provided in an exemplary embodiment of this application;

[0061] Figure 2 yes Figure 1 A cross-sectional view of the valve core assembly along line AA;

[0062] Figure 3 This is a three-dimensional structural schematic diagram of the valve core assembly provided in an exemplary embodiment of this application;

[0063] Figure 4 This is a side view of the valve core provided in an exemplary embodiment of this application;

[0064] Figure 5 This is a side view of the valve core rod provided in an exemplary embodiment of this application;

[0065] Figure 6 This is a three-dimensional structural diagram of the valve core rod provided in an exemplary embodiment of this application;

[0066] Figure 7 This is a side view of the one-way valve provided in an exemplary embodiment of this application;

[0067] Figure 8 yes Figure 7 A cross-sectional view of the check valve along line BB in the image;

[0068] Figure 9 This is a three-dimensional structural diagram of the one-way valve provided in an exemplary embodiment of this application; and

[0069] Figure 10 This is a three-dimensional structural diagram of the valve body provided in an exemplary embodiment of this application.

[0070] Explanation of reference numerals in the attached figures:

[0071] 1. Valve core assembly; 2. Check valve;

[0072] 10. Valve core; 20. Valve core rod; 30. Valve body; 40. Reset component; 50. Limiting component; 60. First seal; 70. Second seal;

[0073] 11. Main body; 110. First surface; 111. Groove; 112. Fourth sub-guide surface; 113. First sealing groove;

[0074] 12. Guide section; 120. Guide surface; 121. First sub-guide surface; 122. Second sub-guide surface; 123. Third sub-guide surface; 124. Second surface; 125. Opening;

[0075] 21. First rod section; 22. Second rod section; 23. Third rod section; 24. Through hole; 25. Textured pattern;

[0076] 31. First sub-valve body; 310. Second sealing groove; 311. Flow passage; 312. Fifth sub-guide surface;

[0077] 32. Second sub-valve body; 320. Mounting groove; 321. Through hole;

[0078] 33. Connecting part. Detailed Implementation

[0079] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0080] Please see Figures 1-10 This application provides a valve core assembly 1, which includes a valve core 10. The valve core 10 includes a main body portion 11 and a conductor portion. The main body portion 11 is used to cooperate with the valve body 30 of a one-way valve 2 to open or close the one-way valve 2. A flow guide portion 12 is connected to the main body portion 11. The flow guide portion 12 is configured to guide the fluid flowing out when the one-way valve 2 is open.

[0081] Through the above technical solution, the guide part 12 in the valve core 10 can guide the flow direction of the fluid flowing out when the one-way valve 2 is opened, optimize the flow path of the fluid, and make it pass through the bottom of the valve core 10 more stably, thereby reducing the turbulence and vibration formed by the fluid at the bottom of the valve core 10, reducing the high-frequency noise caused by fluid disturbance, and improving the working stability of the one-way valve 2.

[0082] Understandably, in this application, the valve core assembly 1 and the valve body 30 define a flow passage 311. Fluid flows into the flow passage 311 from one end of the check valve 2 and flows out from the other end of the check valve 2, thereby opening the check valve 2. Specifically, when fluid flows forward through the check valve 2 from the flow passage 311, the forward pressure of the fluid acts on the valve core 10. When the forward pressure of the fluid is greater than the reset force, the valve core 10 is pushed downward, and there is a gap between the main body 11 of the valve core 10 and the valve body. The check valve 2 opens, and the fluid flows out from the gap and flows along the main body 11 and the guide portion 12. When the forward pressure of the fluid decreases to less than the reset force, the valve core 10 is driven to reset upward, and the main body 11 of the valve core 10 abuts against the valve body 30, closing the check valve 2.

[0083] In other words, the main body 11 of the valve core 10 in this application is used to cooperate with the valve body 30 to form a gap or to abut against the valve body 30, so as to realize the opening and closing of the flow passage 311. The flow guide 12 of the valve core 10 is used to guide the fluid flowing out when the one-way valve 2 is opened.

[0084] In this application, please refer to Figures 1-4 The flow guide 12 is located on the side of the main body 11 away from the flow passage 311, that is, the flow guide 12 is connected to the surface of the main body 11 away from the flow passage 311. In other words, the flow guide 12 protrudes from the main body 11 in a direction away from the main body 11, and the protrusion direction of the flow guide 12 is the same as the opening direction of the one-way valve 2, so that the flow guide 12 is close to the gap between the main body 11 and the valve body 30, thereby facilitating the guidance of the outflowing fluid. Here, the opening direction of the one-way valve 2 refers to the direction in which the fluid is allowed to pass through in one direction, that is, the direction from the fluid inlet of the one-way valve 2 to the fluid outlet.

[0085] In some embodiments, the flow guide 12 includes a flow guide surface 120, and the main body 11 includes a first surface 110 connected to the flow guide 12. The flow guide surface 120 is inclined relative to the first surface 110 to guide the fluid flowing out when the one-way valve 2 is opened. In some embodiments, the first surface 110 is the side surface of the main body 11 away from the flow channel 311, i.e., the bottom surface of the main body 11, and the flow guide surface 120 is the outer surface of the flow guide 12.

[0086] Understandably, in this application, the flow guide 12 adopts an inclined design. When the one-way valve 2 is opened, the fluid flowing out through the flow guide 12 can gradually change direction to flow smoothly in a direction that better conforms to the inclined flow guide surface 120, avoiding direct impact of the fluid on the bottom of the valve core 10, thereby reducing vibration and noise caused by fluid impact. In addition, the inclined flow guide surface 120 increases the flow path length of the fluid at the bottom of the valve core 10, making the pressure change on the valve core 10 more gradual, reducing the vibration of the valve core 10 caused by sudden pressure changes, thereby reducing high-frequency noise.

[0087] In some embodiments, the angle α between the guide surface 120 and the first surface 110 is an obtuse angle so that the guiding direction of the guide surface 120 changes gradually, avoiding large turbulence and vibration of the fluid near the connection between the guide surface 120 and the first surface 110, thereby enabling the fluid to flow smoothly on the guide surface 120, which is beneficial to further reduce high-frequency noise.

[0088] In some embodiments, the angle α between the guide surface 120 and the first surface 110 ranges from 120° to 155°. It is understood that an excessively large angle can drastically change the flow direction of the fluid, easily causing instability and vibration. Conversely, an excessively small angle results in a less than ideal guiding effect of the guide surface 120 and a smaller reduction in high-frequency noise.

[0089] In some embodiments, the included angle α between the guide surface 120 and the first surface 110 can be any one of 120°, 125°, 130°, 135°, 140°, 145°, 150°, and 155°. For example, in this embodiment, the included angle α between the guide surface 120 and the first surface 110 is 120°.

[0090] In some embodiments, the guide surface 120 is any one or a combination of a plane and an arcuate surface. Exemplarily, in some embodiments, the guide surface 120 can be a plane. In another embodiment, the guide surface 120 can be an arcuate surface. In yet another embodiment, the guide surface 120 is formed by connecting a plane and an arcuate surface.

[0091] In some embodiments, the valve core 10 can be a rotating body structure. The valve core 10 can be a centrally symmetrical structure. In some embodiments, both the main body 11 and the guide portion 12 in this application are rotating body structures. In some embodiments, the central axis of the main body 11 and the central axis of the guide portion 12 can coincide, so that the outflowing fluid is evenly distributed near the guide portion 12, achieving uniform flow guidance, avoiding fluid concentration in local areas, thereby effectively reducing the generation of turbulence and eddies, and further reducing high-frequency noise.

[0092] In some embodiments, the guide surface 120 includes a first sub-guide surface 121 and a second sub-guide surface 122. The second sub-guide surface 122 is connected to the first sub-guide surface 121. The first surface 110 is smoothly connected to the second sub-guide surface 122 through the first sub-guide surface 121, so that the fluid flows smoothly from the first surface 110 of the main body 11 through the first sub-guide surface 121 to the second sub-guide surface 122, making the fluid flow more stable, thereby reducing the turbulence and vibration formed by the fluid at the bottom of the valve core 10, which is beneficial to further reduce high-frequency noise.

[0093] Furthermore, in some embodiments, the guide surface 120 further includes a third sub-guide surface 123 and a second surface 124. The third sub-guide surface 123 is connected to the side of the second sub-guide surface 122 away from the first sub-guide surface 121, and the second surface 124 is connected to the side of the third sub-guide surface 123 away from the first sub-guide surface 121. The second sub-guide surface 122 is smoothly connected to the second surface 124 through the third sub-guide surface 123, so that the fluid flows smoothly from the second sub-guide surface 122 through the third sub-guide surface 123 to the second surface 124 of the guide portion 12, making the fluid flow more stable, thereby reducing the turbulence and vibration formed by the fluid at the bottom of the valve core 10, which is beneficial to further reduce high-frequency noise.

[0094] In this embodiment, the area of ​​the first sub-guide surface 121 is smaller than the area of ​​the second sub-guide surface 122, and the area of ​​the third sub-guide surface 123 is smaller than the area of ​​the second sub-guide surface 122. Thus, the first sub-guide surface 121 and the third sub-guide surface 123 mainly play the role of smoothing the transition, while the second sub-guide surface 122 mainly plays the role of guiding the flow.

[0095] In this embodiment, the first surface 110 is the bottom surface of the main body 11, and the second surface 124 is the bottom surface of the guide portion 12. In some embodiments, both the first surface 110 and the second surface 124 are planar, and the first surface 110 and the second surface 124 can be arranged opposite to each other. In some embodiments, the first surface 110 and the second surface 124 are arranged in parallel.

[0096] In some embodiments, a first sub-guide surface 121 and a first surface 110 have a first included angle α1, a second sub-guide surface 122 and a first surface 110 have a second included angle α2, and a third sub-guide surface 123 and a first surface 110 have a third included angle α3. All three included angles α1, α2, and α3 are obtuse angles. The first included angle α1 is greater than the third included angle α3, and the second included angle α2 is greater than the third included angle α3, so that the first surface 110 is smoothly connected to the second sub-guide surface 122 via the first sub-guide surface 121, and the second sub-guide surface 122 is smoothly connected to the second surface 124 via the third sub-guide surface 123.

[0097] In some embodiments, the guide surface 120 has multiple sub-guide surfaces to increase the contact area between the fluid and the guide portion 12, thereby increasing the guide area and further reducing high-frequency noise.

[0098] In some embodiments, the plurality of sub-guide surfaces includes a plurality of first sub-guide surfaces 121, a plurality of second sub-guide surfaces 122, and a plurality of third sub-guide surfaces 123, that is, the number of each of the first sub-guide surfaces 121, second sub-guide surfaces 122, and third sub-guide surfaces 123 is plurality. The plurality of first sub-guide surfaces 121 are interconnected to form a circumferential surface, the plurality of second sub-guide surfaces 122 are interconnected to form a circumferential surface, and the plurality of third sub-guide surfaces 123 are interconnected to form a circumferential surface. The plurality of circumferential surfaces are interconnected to form the guide surface 120 of the main body 11.

[0099] In some embodiments, please refer to Figures 1-3 The valve core assembly 1 also includes a valve core rod 20, which is connected to the valve core 10. Under external force, the valve core 10 is moved axially between a first position and a second position to open or close the check valve 2. When the valve core 10 is in the first position, there is a gap between the valve body 30 and the valve core 10, allowing fluid to flow out through the gap, thus opening the check valve 2. When the valve core 10 is in the second position, the valve body 30 and the valve core 10 abut against each other, closing the check valve 2. In other words, the valve core rod 20 in this application is used to control the opening pressure of the check valve 2 and to realize the reset function of the check valve 2.

[0100] In some embodiments, one end of the valve core 20 is embedded in and connected to the valve core 10. This reduces the overall axial dimension of both the valve core 10 and the valve core 20, meaning the check valve 2 has a smaller axial dimension. Consequently, the check valve 2 exhibits less flow resistance to fluid flowing through it axially, resulting in higher sensitivity and ensuring sufficient and rapid flow.

[0101] Furthermore, in some embodiments, one end of the valve core rod 20 is injection molded to the valve core 10. That is to say, the valve core rod 20 and the valve core 10 are joined together by an in-mold injection molding process. This manufacturing process helps to increase the connection strength between the valve core rod 20 and the valve core 10 and reduce production costs.

[0102] In some embodiments, the valve core 20 can be made of metal, and the valve core 10 can be made of plastic. The specific steps for forming the valve core 20 and the valve core 10 are as follows: First, the valve core 20 is prepared; then, the prepared valve core 20 is placed in a mold, and molten plastic material is injected into the mold using an injection molding machine. After the plastic material cools and solidifies in the mold, it forms the valve core, thereby tightly bonding the valve core 10 and the valve core 20.

[0103] In some embodiments, the material of the valve core rod 20 may include SUS304, and the material of the valve core 10 may include PPS+40%GF, that is, 40% glass fiber (GF) is added to polyphenylene sulfide (PPS) plastic.

[0104] In some embodiments, the flow guide 12 is provided with an opening 125 for injecting material that is injection molded to form the valve core 10. In this application, the opening 125 is provided on the side surface of the flow guide 12 away from the main body 11. In the axial direction of the main body 11, the size of the opening 125 is smaller than the size of the main body 11 to avoid reducing the strength of the flow guide 12.

[0105] In some embodiments, the size of the opening 125 ranges from 1mm to 5mm in the axial direction of the main body 11. The size of the opening 125 also ranges from 1mm to 5mm in the axial direction perpendicular to the main body 11. For example, the size of the opening 125 is 3mm x 3mm.

[0106] In some embodiments, please refer to Figure 2 and Figures 5-6 The valve core rod 20 includes a first rod portion 21 and a second rod portion 22. The second rod portion 22 is located on the surface of the first rod portion 21 near the guide portion 12 and away from the main body portion 11, and is connected to the first rod portion 21. The first rod portion 21 and the second rod portion 22 are embedded in the valve core 10. The dimension of the second rod portion 22 in the axial direction perpendicular to the valve core rod 20 is larger than the dimension of the first rod portion 21 in the same axial direction. Thus, by setting the first rod portion 21 and the second rod portion 22 with different dimensions, the valve core rod 20 does not shift during in-mold injection molding of the valve core 10, which helps to increase the pull-out force. Furthermore, the differentiated dimensions of the first rod portion 21 and the second rod portion 22 prevent the valve core rod 20 from being installed backwards during in-mold injection molding.

[0107] In some embodiments, at least a portion of the first rod portion 21 is embedded in the main body portion 11, and at least a portion of the second rod portion 22 is embedded in the flow guide portion 12. This further reduces the overall size of the valve core 10 and the valve core rod 20 in the axial direction of the valve core rod 20. In other words, the one-way valve 2 has a smaller axial size, resulting in less flow resistance and higher sensitivity for the fluid flowing through it along its axial direction. It also ensures that the one-way valve 2 has sufficient flow and a fast flow rate.

[0108] In some embodiments, the first rod portion 21 is provided with a through hole 24, which penetrates the outer periphery of the first rod portion 21. The inner wall of the through hole 24 contacts the valve core 10 to increase the contact area between the valve core rod 20 and the valve core 10, which helps to increase the connection strength between the valve core rod 20 and the valve core and avoids the valve core rod 20 from being misaligned.

[0109] In some embodiments, the cross-sectional shape of the first rod portion 21 can be either circular or polygonal. For example, see [link to relevant documentation]. Figure 1 The cross-sectional shape of the first rod portion 21 in this application is circular.

[0110] In some embodiments, a textured pattern 25 is provided on the outer periphery of the second rod portion 22. The textured pattern 25 is configured to increase the contact area between the valve core rod 20 and the valve core 10, thereby further increasing the connection strength between the valve core rod 20 and the valve core 10 and preventing the valve core rod 20 from being misaligned. In some embodiments, the textured pattern 25 includes a knurled pattern.

[0111] In some embodiments, the central axis of the valve core rod 20 coincides with the central axis of the valve core 10. In some embodiments, the central axis of the valve core rod 20 coincides with the central axis of the main body 11 and the central axis of the flow guide 12 to achieve uniform flow guidance, avoid fluid concentration in local areas, thereby effectively reducing the generation of turbulence and eddies, and further reducing high-frequency noise.

[0112] In some embodiments, the valve core rod 20 further includes a third rod portion 23, which is connected to the first rod portion 21. A groove 111 is provided on the surface of the main body portion 11 away from the flow guide portion 12, and the end of the third rod portion 23 connected to the first rod portion 21 is received within the groove 111 to compress the overall height of the one-way valve 2. In some embodiments, the inner wall of the groove 111 is designed with a circular bevel.

[0113] In some embodiments, please refer to Figures 7-9 The valve core assembly 1 also includes a reset member 40. The reset member 40 is sleeved on the valve core rod 20 and is used to provide external force to the valve core rod 20 to drive the valve core to move between a first position and a second position along the axial direction of the valve core rod 20.

[0114] In some embodiments, the valve core assembly 1 further includes a limiting member 50. The limiting member 50 is fixedly connected to the end of the valve core rod 20 away from the valve core 10. One end of the limiting member 50 abuts against the valve body 30, and the other end abuts against the valve body 30, thereby limiting the axial movement of the valve core 10 relative to the valve body 30, controlling the opening pressure of the check valve 2 and realizing the reset function of the check valve 2.

[0115] Understandably, the reset member 40 uses its own elasticity to make the main body 11 tend to abut against the valve body 30 through the limiting member 50. The limiting member 50 and the main body 11 can be positioned relative to the valve body 30 from opposite sides of the valve body 30 along the axial direction, ensuring the relative displacement stroke between the limiting member 50, the valve core 10 and the valve body 30.

[0116] In some embodiments, the reset member 40 may be an elastic member. For example, the reset member 40 may be a reset spring. Since the relative position between the limiting member 50 and the valve core 10 is fixed, the relative position between the limiting member 50 and the valve body 30 can be changed by altering the extension length of the elastic member, thereby changing the relative position between the valve core 10 and the valve body 30.

[0117] In some embodiments, the limiting member 50 is also threadedly connected to the end of the valve stem 20 away from the valve core 10. In some embodiments, the limiting member 50 in this application can be a nut.

[0118] Furthermore, in this application, the limiting member 50 is threaded to the valve core rod 20 and then spot-welded to fix it, which can further increase the connection strength between the limiting member 50 and the valve core rod 20 and prevent the upper end of the valve core rod 20 from coming out of the valve and causing failure.

[0119] Furthermore, it is understood that the planar configuration of the guide portion 12 in this application also serves to provide a fixing position for assembling the limiting member 50, facilitating installation.

[0120] According to the second aspect of this application, please refer to Figures 7-10 A one-way valve 2 is provided, which includes the valve core assembly 1 described above. The one-way valve 2 has all the beneficial effects of the valve core assembly 1 described above, which will not be repeated here.

[0121] In some embodiments, the one-way valve 2 further includes a valve body 30, and the valve core assembly 1 cooperates with the valve body 30 to open or close the one-way valve 2. In some embodiments, the valve body 30 may be a rotating structure. In some embodiments, the material of the valve body 30 may include metal.

[0122] In some embodiments, the valve body 30 includes a first sub-valve body 31. When the check valve 2 is in the open state, a gap is formed between the first sub-valve body 31 and the main body 11, and fluid flows out through the gap. When the check valve 2 is in the closed state, the first sub-valve body 31 abuts against the main body 11. It is understood that by providing the first sub-valve body 31, the valve body 30 can be fitted with the main body 11 of the valve core 10 to seal the flow passage 311, and the first sub-valve body 31 can be connected to the structure on which the check valve 2 is mounted for mounting and fixing the check valve 2.

[0123] In some embodiments, the first sub-valve body 31 includes a fourth sub-guide surface 112, and the main body 11 includes a fifth sub-guide surface 312. When the one-way valve 2 is in the closed state, the fourth sub-guide surface 112 and the fifth sub-guide surface 312 abut against each other. In some embodiments, the fourth sub-guide surface 112 is located on the inner side of the first sub-valve body 31, and the fifth sub-guide surface 312 is located on the outer side of the main body 11, with the fourth sub-guide surface 112 and the fifth sub-guide surface 312 being compatible.

[0124] In some embodiments, both the fourth sub-guide surface 112 and the fifth sub-guide surface 312 are configured as arc surfaces, which facilitates smooth fluid flow and further avoids the generation of high-frequency noise.

[0125] In some embodiments, the check valve 2 further includes a first seal 60, which, when the check valve 2 is in the closed state, is sealingly connected to the first sub-valve body 31 and the main body 11. The first seal 60 seals the gap between the main body 11 and the valve body 30, preventing fluid leakage from the flow passage 311 through this gap when the check valve 2 is in the closed state, thus improving the sealing performance of the check valve 2. Furthermore, the first seal 60 reduces noise between the main body 11 and the valve body 30, improving the comfort of using the check valve 2.

[0126] In some embodiments, the fourth sub-guide surface 112 or the fifth sub-guide surface 312 is provided with a first sealing groove 113, and the first sealing member 60 is located within the first sealing groove 113. In some embodiments, the first sealing groove 113 is arranged in an annular shape, and correspondingly, the first sealing member 60 is also arranged in an annular shape.

[0127] In this application, the valve core rod 20, together with the first sealing member 60 and the valve body 30, forms the valve cavity of this one-way valve 2, that is, it forms the flow passage 311 of the one-way valve 2.

[0128] In some embodiments, the one-way valve 2 further includes a second sealing member 70, and a second sealing groove 310 is provided on the outer side of the first sub-valve body 31; wherein, the second sealing member 70 is located within the second sealing groove 310 and is used to cooperate with external components to achieve external sealing of the valve body 30. In some embodiments, the second sealing member 70 cooperates with the body of the heat pump to achieve external sealing of the valve body 30. It is understood that by providing the second sealing groove 310, the embodiments of this application can avoid the outer side of the second sealing member 70 protruding from the outer side of the valve body 30, which is beneficial to reducing the size of the one-way valve 2 in the direction perpendicular to its axial direction and achieving weight reduction of the one-way valve 2. In some embodiments, the second sealing groove 310 is arranged in an annular shape, and correspondingly, the second sealing member 70 is also arranged in an annular shape.

[0129] In some embodiments, the valve body 30 further includes a second sub-valve body 32, which is located on the side of the first sub-valve body 31 near the valve core 10 and spaced apart from the first sub-valve body 31. The second sub-valve body 32 is disposed around the valve core rod 20 to guide the valve core rod 20 to move in its axial direction and to define the direction of movement of the valve core rod 20 of the valve core assembly 1. The inner side of the first sub-valve body 31 and the outer side of the second sub-valve body 32 define a flow passage 311.

[0130] In some embodiments, the second sub-valve body 32 is provided with a through hole 321, and the valve core rod 20 is at least partially located in the through hole 321 and cooperates with the inner wall of the through hole 321 to limit the movement of the valve core rod 20 along its axial direction, thereby ensuring the reliability of the relative movement between the valve body and the valve core 10.

[0131] In some embodiments, the end of the reset member 40 near the valve core 10 is located between the second sub-valve body 32 and the valve core rod 20, and abuts against the second sub-valve body 32.

[0132] In some embodiments, the second sub-valve body 32 is further provided with a mounting groove 320, which is located on the side of the through hole 321 away from the valve core 10. One end of the reset member 40 of the valve core assembly 1 is abutted against the bottom of the mounting groove 320 and the other end is abutted against the limiting member 50 of the valve core assembly 1.

[0133] In some embodiments, the valve body 30 further includes a connecting portion 33, one end of which is connected to the inner circumferential surface of the first sub-valve body 31 and the other end of which is connected to the outer circumferential surface of the second sub-valve body 32. Multiple connecting portions 33 can be provided, spaced apart circumferentially along the second sub-valve body 32. By providing multiple connecting portions 33, a fixed connection between the first sub-valve body 31 and the second sub-valve body 32 can be achieved. Furthermore, the width of the connecting portion 33 gradually increases from the center to both ends radially in the one-way valve 2, and the two sides of the connecting portion 33 in the width direction of the one-way valve 2 are arc-shaped in the cross-section of the one-way valve 2. This results in a larger flow area in the flow passage 311, lower flow resistance in the one-way valve 2, higher sensitivity, and a faster and larger flow rate of the fluid flowing through the one-way valve 2 axially.

[0134] According to a third aspect of this application, a vehicle is provided that includes the aforementioned one-way valve, and the vehicle has all the beneficial effects of the aforementioned one-way valve, which will not be repeated here.

[0135] The vehicle may be a gasoline-powered vehicle, a plug-in hybrid electric vehicle, or a new energy vehicle, etc., and this application does not make any specific restrictions.

[0136] 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 technical features indicated. Therefore, a feature defined as "first" or "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.

[0137] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0138] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0139] 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.

Claims

1. A valve core assembly, characterized in that, The valve core assembly includes a valve core, the valve core comprising: The main body is used to cooperate with the valve body of the one-way valve to open or close the one-way valve; and The flow guide section is connected to the main body section; The flow guide is configured to guide the fluid flowing out when the one-way valve is opened.

2. The valve core assembly according to claim 1, characterized in that, The flow guide includes a flow guide surface, and the main body includes a first surface connected to the flow guide. The flow guide surface is inclined relative to the first surface to guide the fluid flowing out when the one-way valve is opened.

3. The valve core assembly according to claim 2, characterized in that, The angle between the guide surface and the first surface is an obtuse angle.

4. The valve core assembly according to claim 2, characterized in that, The guide surface includes: First sub-guide surface; and The second sub-guide surface is connected to the first sub-guide surface; The first surface is smoothly connected to the second sub-guide surface through the first sub-guide surface.

5. The valve core assembly according to claim 4, characterized in that, The guide surface also includes: The third sub-guide surface is connected to the side of the second sub-guide surface away from the first sub-guide surface; and The second surface is connected to the side of the third sub-guide surface away from the first sub-guide surface; The second sub-guide surface is smoothly connected to the second surface through the third sub-guide surface.

6. The valve core assembly according to claim 5, characterized in that, The number of the first sub-guide surface, the second sub-guide surface, and the third sub-guide surface are all multiple; Among them, multiple first sub-guide surfaces are interconnected to form a circumferential surface, multiple second sub-guide surfaces are interconnected to form a circumferential surface, multiple third sub-guide surfaces are interconnected to form a circumferential surface, and multiple circumferential surfaces are connected to form the guide surface.

7. The valve core assembly according to claim 2, characterized in that, The guiding surface can be any one or a combination of a plane and an arc surface.

8. The valve core assembly according to claim 1, characterized in that, The flow guide protrudes from the main body in a direction away from the main body, and the protrusion direction of the flow guide is the same as the opening direction of the one-way valve.

9. The valve core assembly according to any one of claims 1-8, characterized in that, The valve core assembly also includes: A valve core rod, connected to the valve core, is used to drive the valve core to move along the axial direction of the valve core rod between a first position and a second position under the action of external force, so as to open or close the one-way valve; When the valve core is in the first position, there is a gap between the valve body and the valve core, the fluid flows out through the gap, and the one-way valve opens; When the valve core is in the second position, the valve body and the valve core abut against each other, and the one-way valve is closed.

10. The valve core assembly according to claim 9, characterized in that, One end of the valve core rod is embedded in the valve core and connected to the valve core.

11. The valve core assembly according to claim 10, characterized in that, One end of the valve core rod is injection molded to the valve core.

12. The valve core assembly according to claim 11, characterized in that, The flow guide is provided with an opening for injecting material that will be injection molded to form the valve core.

13. The valve core assembly according to claim 9, characterized in that, The valve core rod includes: First pole section; and The second rod portion is located on the side surface of the first rod portion near the flow guide portion and away from the main body portion and is connected to the first rod portion. The first rod portion and the second rod portion are embedded in the valve core. The second rod portion has a larger dimension in the axial direction perpendicular to the valve core rod than the first rod portion in the axial direction perpendicular to the valve core rod.

14. The valve core assembly according to claim 13, characterized in that, At least a portion of the first rod is embedded in the main body, and at least a portion of the second rod is embedded in the guide portion.

15. The valve core assembly according to claim 13, characterized in that, The first rod portion is provided with a through hole, which penetrates the outer periphery of the first rod portion, and the inner wall of the through hole contacts the valve core.

16. The valve core assembly according to claim 13, characterized in that, The outer periphery of the second rod is provided with a textured pattern to increase the contact area between the valve core rod and the valve core.

17. The valve core assembly according to claim 13, characterized in that, The valve core rod also includes: The third rod is connected to the first rod. The main body has a groove on the side surface away from the guide portion, and the end of the third rod that is connected to the first rod is received in the groove.

18. The valve core assembly according to claim 9, characterized in that, The valve core assembly also includes: A reset element is sleeved on the valve core rod. The reset element is used to provide external force to the valve core rod to drive the valve core to move between the first position and the second position along the axial direction of the valve core rod.

19. The valve core assembly according to claim 18, characterized in that, The valve core assembly also includes: A limiting element is fixedly connected to the end of the valve core rod away from the valve core, and is used to limit the axial movement of the valve core relative to the valve body of the valve core rod.

20. The valve core assembly according to claim 19, characterized in that, The limiting member is also threadedly connected to the end of the valve core rod away from the valve core.

21. A one-way valve, characterized in that, Includes the valve core assembly as described in any one of claims 1-20.

22. The one-way valve according to claim 21, characterized in that, The one-way valve also includes: The valve body, wherein the valve core assembly cooperates with the valve body to open or close the one-way valve.

23. The one-way valve according to claim 22, characterized in that, The valve body includes a first sub-valve body; When the one-way valve is in the open state, there is a gap between the first sub-valve body and the main body, and fluid flows out from the gap. When the one-way valve is in the closed state, the first sub-valve body abuts against the main body.

24. The one-way valve according to claim 23, characterized in that, The first sub-valve body includes a fourth sub-guide surface; The main body includes a fifth sub-guide surface; When the one-way valve is in the closed state, the fourth sub-guide surface and the fifth sub-guide surface abut against each other.

25. The check valve according to any one of claims 23-24, characterized in that, The valve body further includes a second sub-valve body, which is located on the side of the first sub-valve body near the valve core and spaced apart from the first sub-valve body. The second sub-valve body is arranged around the valve core rod to guide the valve core rod to move along its axial direction.

26. The one-way valve according to claim 25, characterized in that, The end of the reset member near the valve core is located between the second sub-valve body and the valve core rod, and abuts against the second sub-valve body.

27. A vehicle, characterized in that, It includes the valve core assembly as described in any one of claims 1-20 or the one-way valve as described in any one of claims 21-26.

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