One-way valve assembly and fluid control assembly

Abstract

According to the technical scheme, the one-way valve assembly and the fluid control assembly are provided, the assembly gap is formed between the first part located on the side, close to the opening of the mounting cavity, of the outer leakage sealing ring and the valve element assembly, the flow guide channel is formed in the first part and communicates with the assembly gap, and the flow guide channel can discharge accumulated liquid accumulated in the assembly gap; after the accumulated liquid is effectively discharged, the influence on the leakage sealing ring can be reduced, and the anti-corrosion performance of the one-way valve assembly can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fluid management, in particular to a one-way valve assembly for vehicles or energy storage and a fluid control assembly. BACKGROUND

[0002] In a vehicle thermal management system, a one-way component is one of the commonly used components, a valve core assembly of the one-way component is installed in a mounting cavity of a valve body, and liquid is easily accumulated in an assembly gap, which can corrode the sealing structure and cause defective products. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the present application is to provide a one-way valve assembly and a fluid control assembly, which can improve the corrosion resistance of the one-way valve assembly and the fluid control assembly.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0005] A one-way valve assembly, comprising a valve body and a valve core assembly, the valve body has a mounting cavity, at least part of the valve core assembly is located in the mounting cavity, the one-way valve assembly comprises an outer leakage sealing ring, the outer leakage sealing ring is located at the outer periphery of the valve core assembly, the outer leakage sealing ring is in sealing connection with the valve body, the one-way valve assembly has an assembly gap, the valve body comprises a first part, the first part is located at one side of the outer leakage sealing ring close to the opening of the mounting cavity, the wall forming the assembly gap comprises the inner wall of the first part, the first part comprises a flow guide channel, the flow guide channel is in communication with the assembly gap, and the flow guide channel can discharge the accumulated liquid in the assembly gap.

[0006] The technical scheme of the present application provides a one-way valve assembly, an assembly gap is included between the first part located at one side of the outer leakage sealing ring close to the opening of the mounting cavity and the valve core assembly, a flow guide channel is arranged on the first part, the flow guide channel is in communication with the assembly gap, the flow guide channel can discharge the accumulated liquid in the assembly gap, after the liquid is effectively discharged, the influence on the outer leakage sealing ring is reduced, which can improve the corrosion resistance of the one-way valve assembly.

[0007] A one-way valve assembly, comprising a valve body and a valve core assembly, the valve body has a mounting cavity, at least part of the valve core assembly is located in the mounting cavity, the one-way valve assembly comprises an outer leakage sealing ring, the outer leakage sealing ring is located at the outer periphery of the valve core assembly, the outer leakage sealing ring is in sealing connection with the valve body, the valve body comprises a second part, the second part is located at one side of the outer leakage sealing ring away from the opening of the mounting cavity, and the valve core assembly is in threaded connection with the second part.

[0008] The technical scheme of the present application provides a one-way valve assembly, a second part located on one side of an outer leakage sealing ring away from an opening of a mounting cavity is threadedly connected with a valve core assembly, the second part is used for fixed connection, and assembly gap is reduced on one side of the first part, thereby reducing the accumulation of accumulated liquid in the assembly gap, and the corrosion resistance of the one-way valve assembly is improved.

[0009] A one-way valve assembly, comprising a valve body, a valve core assembly, the valve body having a mounting cavity, at least part of the valve core assembly being located in the mounting cavity, the one-way valve assembly comprising an outer leakage sealing ring located on the outer periphery of the valve core assembly, the outer leakage sealing ring being sealingly connected with the valve body, the valve body comprising a first part located on one side of the outer leakage sealing ring close to the opening of the mounting cavity, the one-way valve assembly comprising a fastener fixedly connected or positionally connected with the first part, the fastener being positionally connected with the valve core assembly.

[0010] The technical scheme of the present application provides a one-way valve assembly, a fastener fixedly connected or positionally connected with a first part, the fastener being positionally connected with a valve core assembly, by selecting the fastener fixedly connected or positionally connected with the first part, the formation of assembly gap is reduced, thereby reducing the accumulation of accumulated liquid in the assembly gap, and the corrosion resistance of the one-way valve assembly is improved.

[0011] A fluid control assembly comprising the one-way valve assembly of any of the above technical schemes, the fluid control assembly comprising a flow passage part and a thermal management component, the thermal management component being fixedly connected or positionally connected with the flow passage part, the valve body and the flow passage part being an integral structure, the thermal management component comprising at least one of an expansion valve, a solenoid valve, an electric ball valve, a sensor, a heat exchanger, and a liquid storage device.

[0012] The technical scheme of the present application provides a fluid control assembly comprising the one-way valve assembly of any of the above technical schemes, the valve body and the flow passage part being an integral structure, the one-way valve assembly of any of the above technical schemes being beneficial to improve the corrosion resistance thereof, and similarly, the fluid control assembly comprising the one-way valve assembly can also improve the corrosion resistance. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structural schematic diagram of an embodiment of the one-way valve assembly of the present application;

[0014] Figure 2 is Figure 1 is a structural schematic diagram of a second view of the one-way valve assembly in

[0015] Figure 3 is Figure 1 is a structural schematic diagram of a third view of the one-way valve assembly in

[0016] Figure 4 is Figure 3 structure diagram of a one-way valve assembly in another assembly position of a snap ring;

[0017] Figure 5 is Figure 1 structure diagram of a one-way valve assembly in another assembly position of a snap ring;

[0018] Figure 6 is Figure 1 structure diagram of a one-way valve assembly in another assembly position of a snap ring;

[0019] Figure 7 is Figure 1 structure diagram of a one-way valve assembly in another assembly position of a snap ring;

[0020] Figure 8 is Figure 7 structure diagram of a one-way valve assembly in another assembly position of a snap ring;

[0021] Figure 9 is structure diagram of a one-way valve assembly in another assembly position of a snap ring;

[0022] Figure 10 Figure 9 is structure diagram of a one-way valve assembly in another assembly position of a snap ring;

[0023] Figure 11 is

[0024] structure diagram of a one-way valve assembly in another assembly position of a snap ring; Figure 12

[0025] is Figure 13 structure diagram of a one-way valve assembly in another assembly position of a snap ring; Figure 12

[0026] is Figure 14 structure diagram of a one-way valve assembly in another assembly position of a snap ring;

[0027] Figure 15 is Figure 14 structure diagram of a one-way valve assembly in another assembly position of a snap ring.

[0028] Symbol explanation:

[0029] 1, valve body; 10, flow channel; 101, first flow channel; 102, second flow channel; 2, valve core assembly; 21, top side; 22, first connecting part; 11, first part; 111, fixed part; 112, mounting part; 110, mounting cavity; 12, second part; 121, clamping groove; 13, flow guide channel; 130, flow guide bottom wall; 131, first flow guide channel; 132, second flow guide channel; 121, second connecting part; 1120, fourth connecting part; 4, clamping spring; 40, notch; 41, first side; 42, second side; 43, third side; 6, sealing ring; 61, inner leakage sealing ring; 62, outer leakage sealing ring; 3, assembly gap; 31, first assembly gap; 32, second assembly gap; 7, fastener; 71, limiting part; 711, first limiting part; 712, second limiting part; 72, third connecting part; 710, separation part; 8, blocking part; A, first plate; B, second plate. DETAILED DESCRIPTION

[0030] To make the above objectives, features and advantages of the present application more apparent, the specific embodiments of the present application are described in detail below. In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be implemented in many different ways than those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below. In this document, relational terms such as "first" and "second" are used only to distinguish one component from another component having the same name, and do not necessarily require or imply any such actual relationship or order between the components.

[0031] The embodiment of the present application provides a one-way valve assembly which can be used in a vehicle or energy storage thermal management system.

[0032] Figures 1 to 8 An embodiment of a one-way valve assembly is shown, which includes a valve body 1 and a valve core assembly 2, the valve body 1 has a flow channel 10 and a mounting cavity 110, at least part of the valve core assembly 2 is located in the mounting cavity 110, different flow channels 10 are respectively communicated with both ends of the valve core channel of the valve core assembly 2, the other end of the different flow channels 10 is connected to the loop of the thermal management system, and the specific flow channel 10 includes a first flow channel 101 and a second flow channel 102. Along the axial direction of the valve core assembly 2, when the valve core part of the valve core assembly 2 moves away from the valve body 1, the second flow channel 102 is one-way communicated with the first flow channel 101.

[0033] As Figure 7As shown, the spool assembly 2 is in sealing connection with the valve body 1, specifically, the sealing ring 6 is located on the outer circumferential wall of the spool assembly 2 and is in sealing connection with the valve body 1, two sealing rings 6 are arranged along the axial direction of the spool assembly 2, the sealing ring 6 close to the second flow channel 102 is used to separate the communication relationship between the first flow channel 101 and the second flow channel 102, which can also be called an inner leakage sealing ring 61, and the sealing ring 6 close to the first flow channel 101 is used to separate the first flow channel 101 from the space outside the thermal management system, which can also be called an outer leakage sealing ring 62.

[0034] As shown, Figures 1 to 8 As shown, along the axial direction of the spool assembly 2, the valve body 1 includes a first part 11 and a second part 12, the first part 11 is located on the side of the outer leakage sealing ring 62 close to the opening of the mounting cavity 110, and the second part 12 is located on the side of the outer leakage sealing ring 62 away from the opening of the mounting cavity 110, and the spool assembly 2 is mounted on the valve body 1 through the opening of the mounting cavity 110. Specifically, the flow channel 10 of the valve body 1 is located in the second part 12, and the flow channel 10 of the second part 12 changes the communication relationship according to the action of the spool assembly 2. When the spool assembly 2 is assembled on the valve body 1, in order to facilitate assembly, the one-way valve assembly includes an assembly gap 3, which is located on the side of the outer leakage sealing ring 62 away from the flow channel 10, and the assembly gap 3 is in communication with the space outside the thermal management system. When the one-way valve assembly completes the assembly and performs a long-period salt spray test, the assembly gap 3 is easy to accumulate liquid, which can corrode the outer leakage sealing ring 62, causing defective products. Or when there is a temperature change in the working environment where the one-way valve assembly is applied, water vapor containing certain medium may also condense in the assembly gap to form a certain concentration of liquid, which can also corrode the outer leakage sealing ring 62, causing the one-way valve assembly to fail.

[0035] Specifically, in this embodiment, the one-way valve assembly includes a snap spring 4, the first part 11 includes a fixed part 111 for installing the snap spring 4 and a mounting part 112 for mounting the spool assembly 2, the mounting part 112 and the fixed part 111 are an integral structure, the fixed part 111 has a groove cavity, at least part of the snap spring 4 is located in the groove cavity, specifically, the fixed part 111 includes a first ring D and a second ring T, along the axial direction of the spool assembly 2, the first ring D is closer to the outer leakage sealing ring 62 than the second ring T, the inner diameter of the first ring D is smaller than that of the second ring T, the wall forming the groove cavity includes the wall of the first ring D and the wall of the second ring T, and the snap spring 4 can limit the movement of the spool assembly 2 away from the valve body 1 along the axial direction of the spool assembly 2, that is, the spool assembly 2 can be positioned and fixed on the valve body 1.

[0036] Along the axial direction of the valve core assembly 2, the snap spring 4 includes a first side 41 and a second side 42 arranged oppositely, part of the second side 42 is limitedly connected with the top side 21 of the valve core assembly 2, and part of the first side 41 abuts against the wall of the fixed part 111, specifically, the wall of the second ring T of the fixed part 111, so that after the valve core assembly 2 is assembled, the first assembly gap 31 is formed between the groove cavity of the fixed part 111 and the second side 42 of the snap spring 4, and the second assembly gap 32 is formed between the inner wall of the first part 11 and the outer wall of the valve core assembly 2, in a specific embodiment, the first assembly gap 31 is more prone to accumulate liquid when the salt spray test is performed, the first assembly gap 31 and the second assembly gap 32 are communicated, and the accumulated liquid in the first assembly gap 31 flows into the second assembly gap 32, which can increase the risk of corrosion failure of the outer leakage sealing ring 62.

[0037] The first part 11 includes a flow guide channel 13, the flow guide channel 13 is communicated with the assembly gap 3, and the flow guide channel 13 can drain the accumulated liquid in the assembly gap 3, reduce the corrosion of the accumulated liquid to the outer leakage sealing ring 62, and further improve the corrosion resistance of the one-way valve assembly.

[0038] As shown in Figures 1 to 8 , the fixed part 111 includes a flow guide channel 13, the flow guide channel 13 is directly communicated with the first assembly gap 31, and along the radial direction of the valve core assembly 2, the flow guide channel 13 penetrates the groove of the fixed part 111, that is, the groove cavity has an opening in the outer wall of the fixed part 111, and the flow guide channel 13 can drain the accumulated liquid in the first assembly gap 31. Specifically, the flow guide channel 13 penetrates the first ring D and the second ring T, and the flow guide channel 13 divides the integrated fixed part 111 into a split structure. In other embodiments, the flow guide channel 13 can be arranged only in the first ring D, and the flow guide channel 13 can be communicated with the first assembly gap 31. Such a structure may need to drill holes when the valve body 1 is machined, and the size of the first ring D of the fixed part 111 is small, which may be difficult to machine. In the present embodiment, the flow guide channel 13 penetrates the first ring D and the second ring T, and the flow guide channel 13 can be formed more easily by machining and cutting from the outside, which is low in cost.

[0039] In a state of the one-way valve assembly, as shown in Figure 7 and Figure 8 , along the axial direction of the valve core assembly 2, the first assembly gap 31 is located on one side of the second side 42 of the snap spring 4, and the first assembly gap 31 is closer to the outer leakage sealing ring 62 than the snap spring 4, along the axial direction of the valve core assembly 2, the wall forming the flow guide channel 13 includes a flow guide bottom wall 130 close to the outer leakage sealing ring 62, the flow guide bottom wall 130 is farther away from the first side 41 than the second side 42, that is, the flow guide channel 13 is lower than the snap spring 4, so that when the one-way valve assembly is subjected to salt spray tests in different directions, the accumulated liquid in the first assembly gap 31 can flow out more smoothly.

[0040] In other embodiments, the flow guide channel 13 only penetrates the second ring T along the axial direction of the valve core assembly 2, or the flow guide channel 13 penetrates the second ring T and forms a recess in the first ring D, that is, the flow guide bottom wall 130 is closer to the first side 41 than the second side 42. The snap spring 4 includes a third side 43 connecting the first side 41 and the second side 42, and there is also a third assembly gap between the third side 43 and the bottom of the groove of the first fixing portion 111. The accumulated liquid in the first assembly gap 31 can flow out along the third assembly gap, which can effectively reduce the corrosion risk of the outer leakage sealing ring 62.

[0041] In other embodiments, the flow guide channel 13 penetrates the mounting portion 112, which can drain the accumulated liquid in the second assembly gap 32, which is also conducive to reducing the corrosion risk of the outer leakage sealing ring 62.

[0042] In this embodiment, the flow guide channel 13 includes a first flow guide channel 131 and a second flow guide channel 132, the first flow guide channel 131 is located at one end of the fixing portion 111, and the second flow guide channel 132 is located at the opposite end of the fixing portion 111. Figure 4 For another mounting state of the snap spring 4 on the fixing portion 111, the snap spring 4 has a notch 40, along the circumferential direction of the valve core assembly 2, the first end of the snap spring 4 is located on one side of the notch 40, and the second end of the snap spring 4 is located on the other side of the notch 40. The first end of the snap spring 4 is located on one side of the flow guide channel 13, and the second end of the snap spring 4 is located on the other side of the flow guide channel 13, or in other words, along the radial direction of the valve core assembly 2, part of the notch 40 is located in the same direction and opposite to one flow guide channel 13. In this way, the accumulated liquid entering the assembly gap 3 from the notch 40 can be directly drained from the flow guide channel 13. Further, when part of the notch 40 is located in the same direction and opposite to one flow guide channel 13, if the one-way valve assembly is provided with only one flow guide channel 13, the second side 42 of the snap spring and the first assembly gap 31 formed by the groove of the fixing portion 111 only have one opening, and the accumulated liquid in the first assembly gap 31 is not easy to drain. Therefore, two flow guide channels 13 are provided on the fixing portion 111, which can balance the gas pressure and make it easier for the accumulated liquid to flow out. In other embodiments, a larger number of flow guide channels 13 can also be provided, and the flow guide channels 13 are evenly arranged along the circumference of the fixing portion 111, which can ensure that the accumulated liquid can be drained while ensuring the strength of the original fixing portion 111. In other embodiments, the second flow guide channel 132 can also be arranged at other positions of the fixing portion 111 without being arranged opposite to the first flow guide channel 131.

[0043] Figures 9 to 10A specific embodiment of a fluid control assembly is shown, the fluid control assembly comprises a one-way valve assembly, the fluid control assembly comprises a flow channel part, the flow channel part comprises at least two plates, a first plate A comprises a flow channel groove, a second plate B is a flat plate structure, the plates are arranged in an overlapping manner and are welded to seal the opening of the flow channel groove to form a relatively closed flow channel 10, the valve body 1 is integrated with the first plate A in an integrated structure, the first flow channel 101 and the second flow channel 102 are respectively communicated with the corresponding other flow channels 10. The flow channel part comprises an interface part, the opening of the interface part is communicated with the flow channel 10, the interface part is used to connect part of the heat management components of the heat management system, such as an outdoor heat exchanger, an indoor condenser, a compressor, etc., which can be connected through external pipelines. The fluid control assembly comprises a heat management component, which is fixedly connected or positionally connected with the flow channel part. Specifically, the heat management component comprises at least one of an expansion valve, a solenoid valve, an electric ball valve, a sensor, a heat exchanger, and a liquid storage device. The liquid storage device can be a high-pressure liquid accumulator or a low-pressure gas-liquid separator. In this way, the fluid control assembly is compact in structure.

[0044] Figure 11 is a cross-sectional structure schematic diagram of a second embodiment of the one-way valve assembly. Figure 12 is a cross-sectional structure schematic diagram of a third embodiment of the one-way valve assembly. Figure 14 is a cross-sectional structure schematic diagram of a fourth embodiment of the one-way valve assembly.

[0045] Figure 11 In the shown embodiment, the valve core assembly 2 is threadedly connected with the second part 12, and the second part 12 is used to realize the threaded connection, which is equivalent to reducing the assembly gap on the first part 11, thereby reducing the corrosion risk caused by liquid accumulation.

[0046] Figure 12 and Figure 14 In the shown embodiment, the one-way valve assembly comprises a fastener 7, which is fixedly connected with the fixed part 111, such as threaded connection. Along the axial direction of the valve core assembly 2, the fastener 7 can limit the movement of the valve core assembly 2 away from the valve body 1, that is, the fastener 7 limits the valve core assembly 2 from being pulled out of the valve body 1 in the axial direction of the valve core assembly 2, and the fastener 7 is positionally connected with the valve core assembly 2. In a specific embodiment, the limiting part 71 of the fastener 7 can abut against the top side 21 of the valve core assembly 2, and the fastener is used to realize the connection, thereby reducing the formation of assembly gap and reducing the corrosion risk caused by liquid accumulation. In other embodiments, the fastener 7 can be positionally connected with the fixed part 111, such as clamping, riveting, etc.

[0047] Specifically, as Figure 11As shown, the outer peripheral wall of the valve core assembly 2 comprises a first connecting portion 22, the inner peripheral wall of the second portion 12 comprises a second connecting portion 121, and the first connecting portion 22 is threadedly connected with the second connecting portion 121. Specifically, the outer leakage sealing ring 62 is arranged at the opening of the mounting cavity 110, so as to prevent the threads of the second connecting portion 121 from scratching the outer leakage sealing ring 62 when the valve core assembly 2 is mounted. In addition, the arrangement of the outer leakage sealing ring 62 at the opening of the mounting cavity 110 is also conducive to preventing external liquid from entering the gap of the threaded connection. If the outer leakage sealing ring 62 is arranged at the side of the first connecting portion 22 close to the flow passage 10, which is equivalent to that the second connecting portion 121 is arranged at the first portion 11, then the threaded gap is equivalent to the second assembly gap 32, and the entry of liquid into the second assembly gap 32 will cause corrosion to the threaded structure, and further affect the outer leakage sealing ring 62.

[0048] As shown in Figure 12 and Figure 13 , the fastener 7 can be an external nut, which comprises a first limiting portion 711 and a third connecting portion 72. The inner diameter of the first limiting portion 711 is smaller than the outer diameter of the valve core assembly 2, and the inner diameter of the third connecting portion 72 is greater than the outer diameter of the fixing portion 111. The third connecting portion 72 is located at the inner peripheral wall of the fastener 7, and the fourth connecting portion 1120 is located at the outer peripheral wall of the fixing portion 111. The fastener 7 fixes the valve core assembly 2 on the valve body 1 from the periphery of the fixing portion 111. The limiting portion 71 comprises a partition portion 710, which separates the limiting portion 71 into at least two partitioned portions 710 distributed along the circumference of the limiting portion 71. Figure 13 As shown in Figure 13 , the first limiting portion 711 is a hexagonal structure, which facilitates tightening with a tool. Each side of the hexagonal first limiting portion 711 is provided with a partition portion 710, which separates the first limiting portion 711 into six independent parts. In this embodiment, the first limiting portion 711 and the third connecting portion 72 are an integral structure, and the separated first limiting portion 711 is connected with the third connecting portion 72 as an integral structure. In this embodiment, along the axial direction of the valve core assembly 2, the fixing portion 111 is flush with the top side 21 of the valve core assembly 2, the first limiting portion 711 simultaneously presses the fixing portion 111 and the valve core assembly 2, and the partition portion 710 is a flow guide passage 13, which can also discharge the accumulated liquid on the top side of the valve core assembly 2 through the partition portion 710 between adjacent first limiting portions 711.

[0049] As shown in Figure 14 and Figure 15As shown, the fastener 7 can be an inner nut, the inner nut comprising a second limiting portion 712 and a third connecting portion 72, the second limiting portion 712 being a side portion of the fastener 7 close to the valve core assembly 2 along the axial direction of the valve core assembly 2. The inner circumferential wall of the fixing portion 111 and the top side 21 of the valve core assembly 2 jointly form a groove for mounting the fastener 7, at least part of the outer diameter of the fastener 7 is smaller than the inner diameter of the fixing portion 111, at least part of the fastener 7 is located in the corresponding groove, the third connecting portion 72 is located on the outer circumferential wall of the fastener 7, the fourth connecting portion 1120 is located on the inner circumferential wall of the fixing portion 111, and the fastener 7 fixes the valve core assembly 2 on the valve body 1 from the inner side of the fixing portion 111.

[0050] It should be noted that the above examples are only used to illustrate the present application and not to limit the technical solutions described in the present application. Although the present application has been described in detail with reference to the above examples, it should be understood by those skilled in the art that the skilled in the art can still modify or equivalently replace the application, and all technical solutions and improvements which do not deviate from the spirit and scope of the present application should be covered within the scope of the present application.

Claims

1. A check valve assembly characterized by, The one-way valve assembly comprises a valve body (1) and a valve core assembly (2), the valve body (1) has a mounting cavity (110), at least part of the valve core assembly (2) is located in the mounting cavity (110), the one-way valve assembly comprises an outer leakage sealing ring (62), the outer leakage sealing ring (62) is located on the outer periphery of the valve core assembly (2), and the outer leakage sealing ring (62) is in sealing connection with the valve body (1); The one-way valve assembly has an assembly gap (3), the valve body (1) comprises a first part (11), the first part (11) is located on one side of the outer leakage sealing ring (62) close to the opening of the mounting cavity (110), the wall forming the assembly gap (3) comprises the inner wall of the first part (11), the first part (11) comprises a flow guide channel (13), the flow guide channel (13) communicates with the assembly gap (3), and the flow guide channel (13) can discharge accumulated liquid in the assembly gap (3); Or, the valve body (1) comprises a second part (12), the second part is located on one side of the outer leakage sealing ring (62) away from the opening of the mounting cavity (110), and the valve core assembly (2) is in threaded connection with the second part (12).

2. The check valve assembly of claim 1, wherein, The first part (11) comprises a fixed part (111), the one-way valve assembly comprises a snap spring (4), at least part of the snap spring (4) is located in a groove cavity of the fixed part (111), the assembly gap (3) comprises a first assembly gap (31), the wall forming the first assembly gap (31) comprises part of the wall of the snap spring (4) and the wall of the fixed part (111), along the axial direction of the valve core assembly (2), the snap spring (4) comprises a first side (41) and a second side (42) arranged opposite to each other, the valve core assembly (2) comprises a top side (21) close to the snap spring (4), part of the first side (41) abuts against the wall of the fixed part (111), part of the top side (21) abuts against part of the second side (42), along the radial direction of the valve core assembly (2), the flow guide channel (13) penetrates through the fixed part (111), along the axial direction of the valve core assembly (2), the wall forming the flow guide channel (13) comprises a flow guide bottom wall (130) away from the opening of the mounting cavity (110), the flow guide bottom wall (130) is away from the first side (41) compared with the second side (42), or the flow guide bottom wall (130) is close to the first side (41) compared with the second side (42).

3. The check valve assembly of claim 2, wherein, The snap spring (4) has a notch (40), along the circumferential direction of the valve core assembly (2), a first end of the snap spring (4) is located on one side of the notch (40), a second end of the snap spring (4) is located on the other side of the notch (40), the first end of the snap spring (4) is located on one side of the flow guide channel (13), and the second end of the snap spring (4) is located on the other side of the flow guide channel (13).

4. The check valve assembly of claim 3, wherein, The flow guide channel (13) includes a first flow guide channel (131) and a second flow guide channel (132), along the circumference of the valve core assembly (2), the first end of the snap spring (4) is located on one side of the first flow guide channel (131), the second end of the snap spring (4) is located on the other side of the first flow guide channel (131), and the second flow guide channel (132) communicates with the first flow guide channel (131).

5. The check valve assembly of any one of claims 2-4, wherein, The fixed part (111) includes a first ring (D) and a second ring (T), the inner diameter of the first ring (D) is smaller than the inner diameter of the second ring (T), the wall of the groove cavity forming the fixed part (111) includes the wall of the first ring (D) and the wall of the second ring (T), along the axial direction of the valve core assembly (2), the first ring (D) is closer to the outer leakage sealing ring (62) than the second ring (T), and the flow guide channel (13) penetrates the first ring (D) and the second ring (T).

6. The check valve assembly of claim 5, wherein, The number of the flow guide channels (13) can be multiple, and multiple flow guide channels (13) are uniformly distributed along the circumference of the fixed part (111).

7. A check valve assembly characterized by, The one-way valve assembly includes a valve body (1) and a valve core assembly (2), the valve body (1) has a mounting cavity (110), and at least part of the valve core assembly (2) is located in the mounting cavity (110), the one-way valve assembly includes an outer leakage sealing ring (62), the outer leakage sealing ring (62) is located on the outer circumference of the valve core assembly (2), the outer leakage sealing ring (62) is in sealing connection with the valve body (1), the valve body (1) includes a first part (11), the first part is located on the side of the outer leakage sealing ring (62) close to the opening of the mounting cavity (110), the one-way valve assembly includes a fastener (7), the fastener (7) is in fixed connection or position-limiting connection with the first part (11), the fastener (7) is in position-limiting connection with the valve core assembly (2), and the fastener (7) includes a separation part (710).

8. The check valve assembly of claim 7, wherein, The fastener (7) includes a first limiting part (711), the inner diameter of the first limiting part (711) is smaller than the outer diameter of the valve core assembly (2), part of the inner diameter of the fastener (7) is larger than part of the outer diameter of the first part (11), and part of the fastener (7) is located on the outer circumferential side of the first part (11). Or, the fastener (7) includes a second limiting part (712), the outer diameter of the second limiting part (712) is not greater than the outer diameter of the valve core assembly (2), at least part of the outer diameter of the fastener (7) is smaller than the inner diameter of the first part (11), and at least part of the fastener (7) is located on the inner circumferential side of the first part (11).

9. A fluid control assembly comprising: The fluid control assembly includes a flow channel part and a thermal management component, the thermal management component is in fixed connection or position-limiting connection with the flow channel part, the valve body (1) and the flow channel part are in one-piece structure, and the thermal management component includes at least one of an expansion valve, an electromagnetic valve, an electric ball valve, a sensor, a heat exchanger, and a liquid storage device.

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