Fluid control assembly

Abstract

The embodiment of the invention discloses a fluid control assembly, at least part of a first valve part, at least part of a second valve part and at least part of a third valve part of the fluid control assembly are located on the same plane, and the first valve part, the second valve part and the third valve part are arranged in the axis direction of the first valve part. The projections of the first valve component, the second valve component and the third valve component on the reference surface are staggered, so that the compactness of parts can be improved, and miniaturization of the fluid control assembly is facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of fluid control, and in particular to a fluid control component. Background Art

[0002] In air conditioning thermal management systems, multiple thermal management components are usually integrated to reduce pipe connections. Since there are many integrated components and the flow paths are more complex, how to achieve miniaturization becomes a technical problem that needs to be improved. Summary of the invention

[0003] The purpose of the present application is to provide a fluid control component, which is conducive to improving compactness and realizing miniaturization of the fluid control component.

[0004] To achieve the above-mentioned purpose, an embodiment of the present application adopts the following technical solution: a fluid control component, comprising a first valve component, a second valve component, a third valve component and a base, the base having a first accommodating cavity, a first mounting cavity and a second mounting cavity, at least a portion of the first valve component is located in the first accommodating cavity, at least a portion of the third valve component is located in the first mounting cavity, at least a portion of the second valve component is located in the second mounting cavity, at least a portion of the first valve component, at least a portion of the second valve component and at least a portion of the third valve component are located in the same plane, a plane perpendicular to the axis of the first valve component is defined as a reference plane, and along the axis direction of the first valve component, the projections of the first valve component, the second valve component and the third valve component on the reference plane are staggered.

[0005] In the embodiment of the present application, at least a portion of the first valve component, at least a portion of the second valve component and at least a portion of the third valve component are located in the same plane, and along the axial direction of the first valve component, the projections of the first valve component, the second valve component and the third valve component on the reference plane are staggered, which can improve the compactness of the components and is conducive to the miniaturization of the fluid control assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a three-dimensional structural schematic diagram of one embodiment of a fluid control component;

[0007] Figure 2 is a schematic diagram of a top view of a fluid control assembly in one embodiment;

[0008] Figure 3 is a schematic diagram of a top view of a fluid control assembly in one embodiment;

[0009] Figure 4 yes Figure 2 Schematic diagram of the cross-sectional structure at AA;

[0010] Figure 5 yes Figure 2 Schematic diagram of the cross-sectional structure at BB;

[0011] Figure 6 is a front schematic view of one embodiment of a fluid control assembly;

[0012] Figure 7 yes Figure 6 Schematic diagram of the cross-sectional structure at CC;

[0013] Figure 8 It is a three-dimensional structural schematic diagram of one embodiment of a fluid control component;

[0014] Fig. 9 is a bottom-up structural schematic diagram of an implementation method of a fluid control component;

[0015] Fig.10 yes Figure 5 A local enlarged schematic diagram at D;

[0016] Fig.11 It is a three-dimensional structural schematic diagram of another embodiment of the fluid control component.

[0017] 1. Fluid control assembly; 10. Third valve component; 11. Third control unit; 12. First housing; 13. Third valve seat; 15. Third valve port; 16. Third interface unit; 20. Second valve component; 21. Second control unit; 22. Second housing; 23. Second valve seat; 24. Second valve core; 25. Second interface unit; 30. First valve component; 31. First control unit; 32. Third housing; 33. First valve seat; 35. First valve port; 36. Third interface unit; 4. Base; 40. Mounting unit; 40a. First mounting cavity; 40b. Second mounting cavity; 401. First mounting unit; 402. Second mounting unit; 41. First sub-channel; 41a. First opening; 42. Second sub-channel; 43. Third sub-channel Channel; 431, first branch channel; 432, second branch channel; 433, third branch channel; 50, connecting part; 50a, first accommodating chamber; 50b, inlet channel; 5, channel; 51, first hole portion; 51a, first channel; 51b, opening one; 52, second hole portion; 52a, second channel; 52b, opening two; 53, third hole portion; 53a, third channel; 53b, opening three; 53c, opening four; 54, fourth hole portion; 54a, fourth channel; 55, insulation part; 60, one-way valve assembly; 61, one-way valve; 611, first one-way valve; 612, second one-way valve; 613, third one-way valve; 614, fourth one-way valve; 61a, groove portion; 615, limiter; 616, step portion. DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0019] Reference Figure 1-Figure 5 A fluid control assembly 1 includes a first valve component 30, a second valve component 20, a third valve component 10 and a one-way valve assembly 60. The fluid control assembly 1 includes a base 4, the base 4 includes a mounting portion 40 and a connecting portion 50, the mounting portion 40 has a first mounting cavity 40a and a second mounting cavity 40b, at least a portion of the third valve component 10 is located in the first mounting cavity 40a, at least a portion of the second valve component 20 is located in the second mounting cavity 40b, the mounting portion 40 has a flow channel, the flow channel can connect the first mounting cavity 40a and the second mounting cavity 40b, the flow channel has at least two openings in the mounting portion 40, and the openings can be used as part of an interface to connect an external device. The connecting portion 50 has a first accommodating cavity 50a and a channel 5, at least a portion of the first valve component 30 is located in the first accommodating cavity 50a, and at least a portion of the one-way valve assembly 60 is located in the channel 5.

[0020] Reference Figure 2 and Figure 3 , at least part of the first valve component 30, at least part of the second valve component 20 and at least part of the third valve component 10 are located in the same plane, that is, at least part of the first valve component 30, the second valve component 20 and the third valve component 10 are arranged in one plane, which reduces the longitudinal size of the fluid control component 1. The plane perpendicular to the axis of the first valve component 30 is defined as the reference plane. Along the axis direction of the first valve component 30, in this embodiment, the same plane where at least part of the first valve component 30, the second valve component 20 and the third valve component 10 are located is parallel to or coincides with the reference plane, that is, the first valve component 30, the second valve component 20 and the third valve component 10 are not staggered in the axis direction of the first valve component 30. The projections of the first valve component 30, the second valve component 20 and the third valve component 10 on the reference plane are staggered, that is, the first valve component 30, the second valve component 20 and the third valve component 10 are not in a straight line, which improves the compactness of the valve component layout.

[0021] In some embodiments, the lines connecting the axes of the third valve component 10, the second valve component 20 and the first valve component 30 on the reference plane are arranged in a triangular distribution. The triangular distribution here means that the lines connecting the third valve component 10, the second valve component 20 and the first valve component 30 are not on a straight line. Compared with the straight line arrangement, the triangular distribution of the valve components has a higher space utilization rate and a more compact structure. Optionally, the lines connecting the axes of the third valve component 10, the second valve component 20 and the first valve component 30 on the reference plane are arranged in an acute triangle or a right triangle relative to the obtuse triangle of the three lines, which reduces the length of the longest side of the line and further improves the compactness of the structure of the fluid control component 1.

[0022] In some embodiments, the third valve component 10 has a first axis, the second valve component 20 has a second axis, and the first valve component 30 has a third axis, and the first axis is parallel to the second axis.

[0023] In other embodiments, the third axis, the first axis, and the second axis are parallel to each other.

[0024] In other embodiments, the third axis may also have an angle with the first axis / the second axis. The embodiment includes but is not limited to the above structure.

[0025] Reference Figure 1 , the mounting portion 40 and the connecting portion 50 include metal materials, and the mounting portion 40 and the connecting portion 50 are an integrated structure. In the present embodiment, the mounting portion 40 and the connecting portion 50 include aluminum alloy materials. Aluminum alloy has the strength of metal on the one hand, and is lighter than other metals on the other hand, and has strong formability and machinability, which is conducive to lightweighting. In other embodiments, the mounting portion 40 and the connecting portion 50 may also be other metal materials. The mounting portion 40 and the connecting portion 50 are forged / cast, generally preliminarily formed by forging / casting and other processes, and then further processed by machining and other processes for the channels, etc. Compared with directly machining the connecting portion 50, forging / casting can effectively reduce material waste and reduce costs on the one hand; on the other hand, the external structure of the forged / cast mounting portion 40 and the connecting portion 50 is relatively flexible, which is conducive to reducing unnecessary corner materials, thereby achieving weight reduction, and is conducive to the miniaturization of the connecting portion 50.

[0026] Optionally, the hot forging process can be used to improve the strength of the material. The strength and hardness of the material can be improved by refining the grains and optimizing the grain boundary structure. At the same time, hot forging can also eliminate internal residual stress and defects, further improving the strength and toughness of the material. Improve the wear resistance of the material During the hot forging process, a dense oxide film will form on the surface of the aluminum alloy material, which can prevent oxidation and corrosion, and can improve the wear resistance and corrosion resistance of the material.

[0027] At least part of the one-way valve component 60 is located in the connecting portion 50 . The one-way valve assembly 60 includes at least two one-way valves 61 . At least part of each one-way valve 61 is located in the same plane. The same plane where the one-way valves 61 are located is defined as a first plane.

[0028] In some embodiments, reference Figure 1, the first plane and the reference plane have an included angle. Since at least part of each one-way valve 61 is located in the same plane, i.e., the first plane, and at least part of the connecting portion 50 extends in the first plane, on the one hand, the longitudinal dimension of the connecting portion 50 is reduced, and the compactness of the structure of the connecting portion 50 is improved; on the other hand, the reference plane is perpendicular to the axial direction of the first valve component 30, and the first plane and the reference plane have an included angle, i.e., the axial direction of the first valve component 30 and the extending direction of the connecting portion 50 have an included angle, and the layout of the connecting portion 50 and the components located in the mounting portion 40 is more compact, which is conducive to miniaturization of the fluid control component 1.

[0029] Further, the axis of the first valve component 30, the axis of the second valve component 20, and the axis of the third valve component 10 are located in the first plane or are parallel to the first plane. Since the reference plane is perpendicular to the first valve component 30, when the axis of the first valve component 30 is parallel to the first plane, that is, the first plane and the reference plane are perpendicular, the axis of the second valve component 20 and the axis of the third valve component 10 are also parallel to the first plane, which can further improve the compactness of the components.

[0030] In some other embodiments, reference Fig.11 , the first plane is parallel to or coplanar with the reference plane. Since at least part of each one-way valve 61 is located in the same plane, i.e., the first plane, at least part of the communication portion 50 extends in the first plane, and the reference plane is perpendicular to the axial direction of the first valve component 30, i.e., the axial direction of the first valve component 30 is perpendicular to the extension direction of the communication portion 50, this structure is suitable for installation in a narrow installation space, and in actual use, it can be selected according to the structure of the installation space, which is conducive to improving compactness.

[0031] It should be noted that the first plane here can be one, multiple or countless, and is only used to refer to the angle relationship without limiting the specific structure.

[0032] Reference Figure 4 , the base 4 has a first sub-channel 41, a second sub-channel 42, and a third sub-channel 43. In this embodiment, at least part of the first sub-channel 41, the second sub-channel 42, and the third sub-channel 43 are located in the mounting portion 40. One end of the first sub-channel 41 is connected to the first mounting cavity 40a, and the other end of the first sub-channel 41 has a first opening 41a in the mounting portion 40. One end of the second sub-channel 42 is connected to the first mounting cavity 40a, and the other end of the second sub-channel 42 is connected to the second mounting cavity 40b. At least part of the third valve component 10 is located in the first mounting cavity 40a. In some embodiments, when the first mounting cavity 40a is not connected to the first sub-channel 41 and / or the second sub-channel 42, part of the third valve component 10 can also be located in the first sub-channel 41 or the second sub-channel 42. In this embodiment, the third valve component 10 is an electronic expansion valve, and the first opening 41a can be used as the inlet of the channel.

[0033] The third valve component 10 includes a third control part 11, a first housing 12, a third valve seat 13 and a third valve core (the reference numerals are omitted here), the first housing 12 is connected and fixed to the mounting part 40, the first housing 12 can press the third valve seat 13 to reduce leakage, at least part of the third control part 11 is located in the cavity of the first housing 12, and the third control part 11 can be electrically connected or signal-connected to an external device. The fluid control component 1 has a third valve port 15, at least part of the third valve port 15 is located in the third valve seat 13 and / or the mounting part 40, that is, the third valve port 15 can be located in the third valve seat 13, can be located in the mounting part 40, or can be formed by the third valve seat 13 and the mounting part 40. Under the drive of the third control part 11, the third valve core can open or close the third valve port 15, or adjust the opening of the third valve port 15, so as to adjust the flow rate of the working fluid that can pass through the third valve port 15.

[0034] One of the first sub-channel 41 and the second sub-channel 42 serves as an inlet channel for the working fluid, and the other serves as an outlet channel for the working fluid. The first sub-channel 41 has an opening on the side wall of the first installation cavity 40a, and the second sub-channel 42 has an opening on the bottom wall of the first installation cavity 40a. In this embodiment, the first sub-channel 41 serves as at least part of the inlet channel, and the working fluid can enter from the first sub-channel 41 and be discharged from the second sub-channel 42 after passing through the third valve port 15.

[0035] The second valve component 20 includes a second control part 21, a second housing 22, a second valve seat 23 and a second valve core 24. The second housing 22 is connected and fixed to the mounting part 40. The second valve component 20 also includes a cover, which can press the second valve seat 23. There are at least two second valve seats 23. The second valve seat 23 can press the second valve core 24 to reduce leakage. At least part of the second control part 21 is located in the cavity of the second housing 22. The second control part 21 can be electrically connected or signal-connected to an external device. The fluid control component 1 includes a second valve port group, the second valve port group has a plurality of valve ports, the number of valve ports corresponds to the number of valve seats, the second valve core 24 has one or more channels, the third sub-channel 43 can have one or more channels, at least part of the third sub-channel 43 is located in the second valve seat 23, one end of the third sub-channel 43 is connected to the second mounting cavity 40b, and the other end of the third sub-channel 43 has an opening in the mounting part 40, which can be used as at least part of the interface for connecting an external device. Under the control of the second control unit 21, the second valve core 24 can rotate around its axis to meet the switching of the flow channel under specific working conditions. In this embodiment, the connection method of the valve seat 13 and the mounting portion 40 can be bolt fixing, welding fixing, etc. In other embodiments, the valve seat 13 and the mounting portion 40 can also be other connection methods.

[0036] The second valve component 20 includes a rotary valve. In the present embodiment, the second valve component 20 is a four-way ball valve. The third sub-channel 43 includes a first branch channel 431, a second branch channel 432 and a third branch channel 433, wherein the first branch channel 431 and the third branch channel 433 are arranged opposite to each other, and the first branch channel 431 and the third branch channel 433 are located on opposite sides of the second valve core 24, and the second branch channel 432 is located on the side of the second valve core 24 away from the second sub-channel 42. In the present embodiment, one of the holes of the second valve core 24 can connect the second sub-channel 42 with the first branch channel 431, one of the holes can connect the second sub-channel 42 with the third branch channel 433, one of the holes can connect the first branch channel 431 and the second branch channel 432, or connect the third branch channel 433 and the second branch channel 432. In other embodiments, the second valve component 20 can also be a column valve, a reversing valve, etc., and the channel is not limited to a four-way channel, and the flow path and the channel structure can be adjusted according to actual needs.

[0037] Reference Figure 4-9 , the working fluid entering the third valve component 10 from the first sub-channel 41 is usually high temperature and high pressure, in order to reduce the heat transfer effect between the channels. The wall defining the first sub-channel 41 is spaced apart from the wall defining the third sub-channel 43, the mounting portion 40 includes a first mounting portion 401 and a second mounting portion 402, the second mounting portion 402 is located between the first mounting portion 401 and the connecting portion 50, the third valve component 10 and the second valve component 20 are located in the first mounting portion 401, at least part of the second mounting portion 402 is located on one side of the second valve component 20 or at least part of the second valve component 20 is located in the second mounting portion 402, at least part of the second mounting portion 402 can also be located on one side of the second sub-channel 42, the second mounting portion 402 is set to realize the integration of the mounting portion 40 and the connecting portion 50, which is conducive to improving the convenience of processing and reducing the assembly process of the valve components;

[0038] The second mounting portion 402 is arranged between the connecting portion 50 and the wall defining the second sub-channel 42, which reduces the heat transfer from the inlet side of the third valve component 10 to the connecting portion 50, which is conducive to improving the thermal insulation performance. The fluid control component 1 includes a thermal insulation portion 55, at least part of which is located between the first mounting portion 401 and the connecting portion 50. Specifically, the thermal insulation portion 55 is located between the third valve component 10 and the first sub-channel 41 and the connecting portion 50, and is used to physically separate the third valve component 10 and the connecting portion 50 to reduce the heat transfer between the channels. In this embodiment, the thermal insulation portion 55 includes a thermal insulation groove. The thermal insulation portion 55 is in the form of a thermal insulation groove. On the one hand, it has great convenience in processing technology and can be formed in one step during the forging / casting process; on the other hand, the thermal insulation performance of air is better, and the heat transfer between the channels is directly and effectively reduced by grooving. In other embodiments, the thermal insulation portion 55 can also be other thermal insulation materials with thermal insulation performance, including but not limited to the form of thermal insulation grooves.

[0039] Further, at least part of the third sub-channel 43 is located between the third valve component 10 and the first valve component 30, and at least part of the opening of the third sub-channel 43 faces the heat insulation groove. In this embodiment, the third sub-channel 43 includes a third branch channel 433, at least part of the third branch channel 433 is located in the second mounting portion 402, and the opening of the third branch channel 433 in the second mounting portion 402 faces the heat insulation groove, which is conducive to improving space utilization and improving the compactness of the channel.

[0040] Under normal working conditions, the high-temperature and high-pressure working fluid enters the first installation cavity 40a from the first sub-flow channel 41, and the third valve component 10 can be used for throttling and cooling. The temperature and pressure of the working fluid decrease after passing through the third valve port 15. The working fluid enters the second valve component 20 through the second sub-flow channel 42, and is finally discharged through one of the third sub-flow channels 43.

[0041] The opening of the third sub-channel 43 in the second mounting portion 402 is consistent with the opening side of the first sub-channel 41 in the first mounting portion 401. The third sub-channel 43 is partially arranged in the second mounting portion 402, which is conducive to improving the compactness of the internal channel of the mounting portion 40, thereby improving the space utilization rate, and is conducive to miniaturization of the fluid control component 1. The opening of the third sub-channel 43 in the second mounting portion 402 is consistent with the opening side of the first sub-channel 41 in the first mounting portion 401. When an external device is connected to the third sub-channel 43, the pipeline connection direction is located on the same side of the mounting portion 40, which reduces the space occupied by other sides of the mounting portion 40, and is conducive to improving the compactness of the overall structure.

[0042] In this embodiment, at least part of the third flow channel 433 is located at the second mounting portion 402, the opening sides of the third flow channel 433 and the first sub-flow channel 41 are located on the same side of the mounting portion 40, and the opening sides of the second flow channel 432 and the opening sides of the first sub-flow channel 41 are located on the back side of the mounting portion 40. In other embodiments, this structure is included but not limited to.

[0043] Reference Figure 5 The first valve component 30 includes a first control part 31, a third housing 32, a first valve seat 33 and a first valve core. The third housing 32 is connected and fixed to the communication part 50. The communication part 50 has a first accommodating chamber 50a. At least part of the first valve seat 33 is located in the first accommodating chamber 50a and the third housing 32 can press and fix the first valve seat 33. At least part of the first control part 31 is located in the cavity of the third housing 32. The first control part 31 can be electrically connected or signal-connected to an external device. The fluid control component 1 has a first valve port 35. At least part of the first valve port 35 is located in the first valve seat 33 and / or the mounting part 40, that is, when the first valve port 35 can be located in the first valve seat 33, it can be located in the mounting part 40, and it can also be formed by the first valve seat 33 and the mounting part 40. Under the drive of the first control part 31, the first valve core can open or close the first valve port 35, or adjust the opening of the first valve port 35 to adjust the flow rate of the working fluid that can pass through the first valve port 35.

[0044] The connecting portion 50 has an inlet flow channel 50b, one side of which can be connected to the first accommodating chamber 50a, and the other side of the inlet flow channel 50b has an opening in the connecting portion 50, which can serve as at least part of the interface for connecting an external device. The first sub-flow channel 41, the second sub-flow channel 42, and the third sub-flow channel 43 can connect the third valve component 10 and the second valve component 20 in series. The flow channel formed by the first sub-flow channel 41, the second sub-flow channel 42, and the third sub-flow channel 43 is not connected to the inlet flow channel 50b, and the openings of the first installation chamber 40a, the second installation chamber 40b, and the first accommodating chamber 50a in the base 4 are in the same direction. The installation directions of the various valve components are consistent, which improves the convenience of installation of the fluid control component 1.

[0045] Reference Figure 3The third valve component 10 includes a third interface portion 16, the second valve component 20 includes a second interface portion 25, and the first valve component 30 includes a first interface portion 36. The third interface portion 16 is electrically connected or signal-connected to the third control portion 11, the second interface portion 25 can be electrically connected or signal-connected to the second control portion 21, and the first interface portion 36 can be electrically connected or signal-connected to the first control portion 31. The third interface portion 16, the second interface portion 25, and the first interface portion 36 can be connected to an external device. At least one of the interface portions of the third valve component 10, the second valve component 20, and the first valve component 30 faces another one of the third valve component 10, the second valve component 20, and the first valve component 30, which is conducive to improving the compactness of the components.

[0046] The axis of the third valve component 10, the axis of the second valve component 20 and the axis of the first valve component 30 are connected on the reference plane to form a triangle, and at least part of the third interface portion 16 and / or at least part of the second interface portion 25 and / or at least part of the first interface portion 36 are projected within the triangle. This structure is conducive to improving the compactness of the structure and further conducive to the miniaturization of the fluid control component 1. This embodiment shows a structure in which at least part of the second interface portion 25 and at least part of the first interface portion 36 are projected within the triangle. In fact, at least part of the third interface portion 16 can also be projected within the triangle. In other embodiments, including but not limited to the above structure, it can be adjusted according to actual usage.

[0047] Reference Figure 5 The one-way valve assembly 60 includes a one-way valve 61, the connecting portion 50 has a channel 5, and the wall forming the channel 5 includes a first hole portion 51, a second hole portion 52 and a third hole portion 53. At least parts of the three one-way valves 61 are respectively located in the first hole portion 51, the second hole portion 52 and the third hole portion 53. The channel 5 of the second hole portion 52 is connected to the channel 5 of the first hole portion 51, and the channel 5 of the second hole portion 52 is connected to the channel 5 of the third hole portion 53.

[0048] Specifically, the one-way valve 61 includes a first one-way valve 611, a second one-way valve 612 and a third one-way valve 613. The first hole portion 51 has a first hole 51a, the second hole portion 52 has a second hole 52a, and the third hole portion 53 has a third hole 53a. One end of the first hole 51a can be communicated with the second hole 52a, and the other end of the first hole 51a has an opening 1 51b in the connecting portion 50. At least part of the second hole 52a is located between the first hole 51a and the third hole 53a. The bottom of the first accommodating cavity 50a can be communicated with the first hole 51a and / or the second hole 52a. The second hole 52a has an opening 2 52b in the connecting portion 50 away from the first hole 51a. A plug is installed in the opening 2 52b. The opening 2 52b is used to install the second one-way valve 612 in the hole. One end of the third hole 53a can be communicated with the second hole 52a, and the other end of the third hole 53a has an opening 3 53b in the connecting portion 50, which is opposite to at least a portion of the opening 3 53b, and the connecting portion 50 has an opening 4 53c. In this embodiment, the opening 1 51b and the opening 3 53b are located on the same side of the connecting portion 50, and the opening 4 53c is located on the other side of the connecting portion 50. When the connecting portion 50 is connected to an external device, the pipelines are located on both sides of the connecting portion 50, which is conducive to improving the compactness of the overall structure.

[0049] At least part of the first one-way valve 611 is located in the first hole 51a, at least part of the second one-way valve 612 is located in the second hole 52a, and at least part of the third one-way valve 613 is located in the third hole 53a. The second hole 52a and the first hole 51a can be communicated through the first one-way valve 611, and the second hole 52a and the third hole 53a can be communicated through the second one-way valve 612 and / or the third one-way valve 613, that is, in this embodiment, the working fluid can be unidirectionally communicated from the second hole 52a to the first hole 51a, can be unidirectionally communicated from the side of the second hole 52a close to the first hole 51a to the side close to the third hole 53a, and can be unidirectionally communicated from the second hole 52a to the third hole 53a.

[0050] The axis of the second one-way valve 612 is at an angle to the axis of the first one-way valve 611, and the axis of the second one-way valve 612 is at an angle to the axis of the third one-way valve 613. Since the second hole 52a needs to be connected to both the first hole 51a and the third hole 53a, when the axial direction of the second one-way valve 612 located in the second hole 52a is parallel or co-linear with the first one-way valve 611 and the second one-way valve 612, at least part of the first hole 51a, the second hole 52a and the third hole 53a are located on a straight line, the first one-way valve 611, the second one-way valve 612 and the third one-way valve 613 are arranged in a straight line, and the connecting portion 50 is relatively extended, occupying a larger space. When the axis of the second one-way valve 612 forms an angle with the first one-way valve 611 and the third one-way valve 613, on the one hand, along the axis direction of the second one-way valve 612, at least part of the second one-way valve 612 is located between the first one-way valve 611 and the third one-way valve 613, thereby improving space utilization in this direction.

[0051] The axis of the first one-way valve 611 is parallel to the axis of the third one-way valve 613. In this embodiment, under the premise of ensuring that the first hole 51a and the third hole 53a are not connected, that is, ensuring that the thickness between the wall defining the first hole 51a and the wall defining the third hole 53a is sufficient, the axis of the first one-way valve 611 and the axis of the third one-way valve 613 have an angle, which may cause the spacing between the first one-way valve 611 and the third one-way valve 613 to be too large, and the extension direction of the first hole 51a and the third hole 53a also extends at an angle, which in turn causes the volume of the connecting portion 50 to increase. Compared with the angle between the axis of the first one-way valve 611 and the axis of the third one-way valve 613, the axis of the first one-way valve 611 and the axis of the third one-way valve 613 are parallel, which can maximize the compactness of the components and is conducive to miniaturization of the fluid control component 1.

[0052] At least part of the first one-way valve 611, the second one-way valve 612 and the third one-way valve 613 are located in the same plane. That is, at least part of the first one-way valve 611 is on the same plane as at least part of the second one-way valve 612 and at least part of the third one-way valve 613. In other embodiments, the one-way valve assembly 60 may also include four one-way valves 61 or even more than four one-way valves 61. Compared with the staggered arrangement of the one-way valves 61, at least part of the four one-way valves 61 are located in the same plane, which can reduce the longitudinal dimension of the connecting portion 50 and improve the compactness of the components.

[0053] Further, the axes of the first check valve 611, the second check valve 612, and the third check valve 613 are located in the same plane, and this plane is defined as the first plane. The working fluid passing through each check valve 61 is also in the same plane, which helps to reduce turbulence and pressure drop. The axes of the first check valve 611, the second check valve 612, and the third check valve 613 being located in the same plane is beneficial to reducing the longitudinal dimension of the communication part 50, reducing the space occupied by the communication part 50 in the fluid control assembly 1, and facilitating the miniaturization of the fluid control assembly 1.

[0054] The axis of the check valve 61 located in the second hole part 52 is perpendicular to the axis of the check valve 61 located in the first hole part 51, and / or the axis of the check valve 61 located in the second hole part 52 is perpendicular to the axis of the check valve 61 located in the third hole part 53. Specifically, there are multiple embodiments here. In one embodiment, the axis of the second check valve 612 is perpendicular to the axis of the first check valve 611, or the axis of the second check valve 612 is perpendicular to the axis of the third check valve 613. On the one hand, compared with the orifice forming an acute angle, the right-angle orifice can reduce the flow resistance and pressure drop. On the other hand, the angle between the second check valve 612 and the first check valve 611 / third check valve 613 being a right angle can improve the space utilization rate inside the communication part 50 and is beneficial to improving the compactness of the components.

[0055] In another embodiment, the axis of the second check valve 612 is perpendicular to the axis of the first check valve 611, and the axis of the second check valve 612 is perpendicular to the axis of the third check valve 613. The first orifice 51a, the second orifice 52a, and the third orifice 53a include a "C" or "I" structure. At least part of the first check valve 611 is located in the first orifice 51a, at least part of the second check valve 612 is located in the second orifice 52a, and at least part of the third check valve 613 is located in the third orifice 53a. In other embodiments, the orifice includes, but is not limited to, a "C" or "I" structure.

[0056] In this embodiment, at least part of the second check valve 612 is located between the first check valve 611 and the third check valve 613, and the first check valve 611 and the third check valve 613 are on the same side of the second check valve 612. Therefore, the arrangement of the first check valve 611, the second check valve 612, and the third check valve 613 in the orifice is in a "C" shape, further improving the compactness of the components and facilitating the miniaturization of the fluid control assembly 1. Further, the plane perpendicular to the second check valve 612 is defined as the projection plane. Along the axis direction of the first check valve 611, the projection of the first check valve 611 on the projection plane and the projection of the third check valve 613 on the projection plane at least partially overlap, further improving the space utilization rate in the projection direction, facilitating the miniaturization of the communication part 50, and further realizing the miniaturization of the fluid control assembly 1.

[0057] In some embodiments, the fluid control assembly 1 includes four one-way valves 61, the one-way valve assembly 60 also includes a fourth one-way valve 614, the connecting portion 50 also includes a fourth hole portion 54, the fourth hole portion 54 has a fourth hole 54a, at least part of the fourth one-way valve 614 is located in the fourth hole 54a, the fourth hole 54a can connect the first hole 51a and the third hole 53a, and there is an angle between the axes of adjacent one-way valves 61. Specifically, the axis of the third one-way valve 613 and the axis of the fourth one-way valve 614 have an angle, and the axis of the first one-way valve 611 and the axis of the fourth one-way valve 614 have an angle. Compared with the linear arrangement of the one-way valves 61 of the one-way valve assembly 60, there is an angle between the axes of adjacent one-way valves 61, which can make fuller use of the space inside the connecting portion 50, which is conducive to improving the compactness of the components.

[0058] Optionally, the axis of the fourth one-way valve 614 is perpendicular to the axis of the first one-way valve 611, and / or the axis of the fourth one-way valve 614 is perpendicular to the axis of the third one-way valve 613. Specifically, there are multiple embodiments. In one embodiment, the axis of the fourth one-way valve 614 is perpendicular to the axis of the first one-way valve 611, or the axis of the fourth one-way valve 614 is perpendicular to the axis of the third one-way valve 613. On the one hand, compared with the channel forming an acute angle, the right-angle channel can reduce the flow resistance and pressure drop. On the other hand, the angle between the fourth one-way valve 614 and the first one-way valve 611 / the third one-way valve 613 is a right angle, which can improve the space utilization inside the connecting part 50 and help improve the compactness of the parts. In another embodiment, the axis of the fourth one-way valve 614 is perpendicular to the axis of the first one-way valve 611, and the fourth one-way valve 614 is perpendicular to the axis of the third one-way valve 613, which helps to further improve the compactness of the parts.

[0059] The axes of the four one-way valves 61 located in the connecting portion 50 are located in the same plane. In the present embodiment, the first channel 51a, the second channel 52a and the third channel 53a include a "mouth" or "well" type structure, at least a portion of the first one-way valve 611 is located in the first channel 51a, at least a portion of the second one-way valve 612 is located in the second channel 52a, and at least a portion of the third one-way valve 613 is located in the third channel 53a. In other embodiments, the channels include but are not limited to "mouth" or "well" type structures. At least a portion of the four one-way valves 61 are located in the channel of the connecting portion 50, and the axes of the four one-way valves 61 are located in the same plane, which is conducive to reducing the size of the connecting portion 50 in the thickness direction, reducing the space occupied by the connecting portion 50 in the fluid control component 1, and is conducive to the miniaturization of the fluid control component 1.

[0060] In other embodiments, the one-way valve assembly 60 may also include more than four one-way valves 61 , and there is no limitation or requirement on the number.

[0061] Reference Figure 5 and Fig.10 Specifically, for a single one-way valve 61, the fluid control assembly 1 includes a stopper 615, which is connected and fixed to the connecting portion 50. The connecting portion 50 includes a plurality of step portions 616. The wall forming the first channel 51a includes at least one step portion 616, the wall forming the second channel 52a includes at least one step portion 616, the wall forming the third channel 53a includes at least one step portion 616, and the wall forming the fourth channel 54a includes at least one step portion 616. The one-way valve 61 includes a valve seat 13. Along the axial direction of the valve seat 13, one side of the valve seat 13 abuts against the step portion 616, and the other side of the valve seat 13 abuts against the stopper 615. In this embodiment, the connecting portion 50 includes a groove portion 61a, and the groove portion 61a has a stopper groove, which is recessed relative to the wall of the channel. The stopper 615 includes a retaining spring, one side of the retaining spring abuts against the valve seat 13, and the other side of the retaining spring abuts against the wall defining the stopper groove.

[0062] During installation, taking the installation steps of the first one-way valve 611 in the first channel 51a as an example, the pre-assembled first one-way valve 611 is installed from the first opening 41a side, so that the valve seat 13 of the first one-way valve 611 is against the step portion 616, and the retaining spring is installed from the first opening 41a side. When the retaining spring is loosened, at least part of the retaining spring enters the limiting groove, and the position of the valve seat 13 is limited by the retaining spring and cannot be disengaged. A sealing ring is provided between the valve seat 13 and the wall of the first hole portion 51 to limit the leakage of the working fluid from the valve seat 13 and the wall of the first hole portion 51 when the first one-way valve 611 is reversely cut off. In other embodiments, the limiter 615 can also be other components for fixing the valve seat 13.

[0063] The stopper 615 is located on the side of the valve seat 13 close to the opening direction of the one-way valve 61. Taking the first one-way valve 611 as an example, the direction in which the valve core of the first one-way valve 611 opens the valve port is defined as the first direction, and the stopper 615 is located on the side of the valve seat 13 in the first direction. That is, when the working fluid flows from the second channel 52a to the first channel 51a, under the action of the pressure difference, the valve core component of the first one-way valve 611 opens the valve port, and the working fluid can flow forward in the first direction. When the working fluid acts on the valve seat 13, the valve seat 13 will apply force to the limit member 615. However, since the working fluid flows forward, the force applied by the valve seat 13 to the limit member 615 is limited, and the limit member 615 generally does not fall out; when the working fluid flows from the first channel 51a to the second channel 52a, the valve core component of the first one-way valve 611 cannot open the valve port, and the working fluid is cut off in this direction. When the working fluid acts on the valve seat 13, the valve seat 13 applies force to the step portion 616. In the reverse cut-off state, compared with the valve seat 13 directly applying force to the limit member 615, since the step portion 616 and the connecting portion 50 are integrated, the strength and stability of the force directly applied to the step portion 616 are better. This design is conducive to improving the strength of the fluid control component 1.

[0064] Similarly, the valve seats 13 of the second one-way valve 612 , the third one-way valve 613 , and the fourth one-way valve 614 also abut against the step portion 616 on one side and against the limit member 615 on the other side. The limit member 615 is located on the side of the valve seat 13 close to the opening direction of the one-way valve 61 .

[0065] Reference Figure 1 , Figure 4 , Figure 6 , Figure 7 and Fig.10 The fluid control assembly 1 includes a first valve component 30, at least part of which is located in the first accommodating chamber 50a, and a first valve core of the first valve component 30 can open or adjust the first valve port 35 to connect or cut off the inlet flow channel 50b and the second channel 52a. The one-way valve 61 includes a valve core component and a valve port, from the first accommodating chamber 50a to the first opening 41a, and the valve core component located in the first hole portion 51 can open the valve port located in the first hole portion 51 in one direction. It should be noted that the first accommodating chamber 50a is directly connected to the first channel 51a or the second channel 52a, or is connected to the first channel 51a and the second channel 52a, depending on whether the wall of the channel is defined by the wall of the first channel 51a or the wall of the second channel 52a. In the present embodiment, the second channel 52a is formed by machining the opening 52b into the connecting portion 50, and the bottom wall of the second hole portion 52 extends to one side of the first valve component 30. The first accommodating chamber 50a can be directly connected to the second channel 52a. In other embodiments, including but not limited to the above-mentioned structure, the specific structure is not limited here, and is only used to illustrate the positional relationship and the connection relationship.

[0066] In addition, it should be noted that the connection or disconnection here includes but is not limited to opening and closing the valve port, and also includes adjusting the opening of the valve port.

[0067] Further, the axis of the first valve component 30 is located in the first plane or the axis of the first valve component is parallel to the first plane. In this embodiment, the inlet flow channel 50b is connected to the side wall of the first accommodating chamber 50a, and the second channel 52a can be connected to the bottom wall of the first accommodating chamber 50a. The first valve component 30 is a side-inlet and bottom-out electronic expansion valve. The axis of the first valve component 30 is located in the first plane or is parallel to the first plane. When the first valve component 30 is in the valve-opening state, the working fluid in the first accommodating chamber 50a can be directly led out from the valve port of the first valve component 30 to the second channel 52a, which reduces the resistance caused by the bend and is conducive to reducing the pressure drop. On the other hand, at least part of the first valve component 30 is located in the connecting portion 50. The axis of the first valve component 30 and the axis of each one-way valve 61 are located in the same plane, and the area of ​​the connecting portion 50 close to the mounting portion 40 is larger, which is conducive to improving the compactness of the structure and realizing the miniaturization of the fluid control component 1.

[0068] In other embodiments, the axis of the first valve component 30 is perpendicular to the plane where the axes of the one-way valves 61 are located.

[0069] The first valve component 30 and the third valve component 10 are both electronic expansion valves, and the valve port diameter of the third valve component 10 is larger than the valve port diameter of the first valve component 30. The fluid flow capacity of the third valve component 10 is better than the working fluid flow capacity of the first valve component 30, and while having a throttling function, it is beneficial to reduce the pressure drop of the working fluid.

[0070] The working principle of this scheme is: the working fluid enters the third valve component 10 from the first opening 41 through the external pipeline, enters the second valve component 20 after throttling and depressurization, the second valve core 24 of the second valve component 20 controls the flow channel connected to the orifice, and the working fluid is discharged from the third sub-flow channel 43 connected to the orifice. After surrounding the external heat exchanger, the working fluid enters the first valve component 30 from the inlet flow channel 50a, enters the orifice after throttling and depressurization. Under cooling conditions, the working fluid can be discharged from the fourth opening 53c; under heating conditions, the working fluid can be discharged from the first opening 51b.

[0071] In addition, according to the flow control requirements, the working fluid can selectively connect the fourth opening 53c and the third opening 53b to achieve unidirectional conduction from the fourth opening 53c to the third opening 53b.

[0072] It should be noted that the above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail in this specification with reference to the above embodiments, it should be understood by those skilled in the art that the present invention can still be modified or replaced by equivalents, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A fluid control assembly (1), characterized in that: The invention comprises a first valve component (30), a second valve component (20), a third valve component (10) and a base (4); the base (4) has a first accommodating cavity (50a), a first mounting cavity (40a) and a second mounting cavity (40b); at least a portion of the first valve component (30) is located in the first accommodating cavity (50a); at least a portion of the third valve component (10) is located in the first mounting cavity (40a); at least a portion of the second valve component (20) is located in the second mounting cavity (40b); at least a portion of the first valve component (30), at least a portion of the second valve component (20) and at least a portion of the third valve component (10) are located in the same plane; a plane perpendicular to the axis of the first valve component (30) is defined as a reference plane; along the axis direction of the first valve component (30), projections of the first valve component (30), the second valve component (20) and the third valve component (10) on the reference plane are arranged alternately.

2. The fluid control assembly (1) according to claim 1, characterized in that: The base (4) comprises a first sub-channel (41), a second sub-channel (42), a third sub-channel (43) and an inlet channel (50b); one end of the first sub-channel (41) is connected to the first installation cavity (40a); the other end of the first sub-channel (41) comprises a first opening (41a) at the base (4); one end of the second sub-channel (42) is connected to the first installation cavity (40a); the other end of the second sub-channel (42) is connected to the second installation cavity (40b); the third sub-channel (43) is connected to the inlet channel (50b); The inlet flow channel (50b) is connected to the first accommodating cavity (50a), and the inlet flow channel (50b) is not connected to the first sub-flow channel (41), the second sub-flow channel (42), and the third sub-flow channel (43). The openings of the first installation cavity (40a), the second installation cavity (40b), and the first accommodating cavity (50a) are oriented in the same direction at the base (4); The second valve component (20) comprises a rotary valve; the first valve component (30) comprises a first valve core, the first valve component (30) has a first valve port (35), and the first valve core can be moved to switch or adjust the first valve port (35); the third valve component (10) comprises a third valve core, the third valve component (10) has a third valve port (15), and the third valve core can be moved to switch or adjust the third valve port (15).

3. The fluid control assembly (1) according to claim 2, characterized in that: The fluid control component (10) further comprises a one-way valve component (60), the base (4) has a channel (5), the channel (5) can be connected to the first accommodating chamber (50a), at least part of the one-way valve component (60) is located in the channel (5), the one-way valve component (60) comprises at least two one-way valves (61), at least part of each of the one-way valves (61) is located in the same plane, the same plane where the one-way valves (61) are located is defined as a first plane, and the first plane has an angle with the reference plane.

4. The fluid control assembly (1) according to claim 3, characterized in that: The axis of the first valve component (30), the axis of the second valve component (20), and the axis of the third valve component (10) are located on the first plane or are parallel to the first plane.

5. The fluid control assembly (1) according to claim 2, characterized in that: The fluid control component (1) also includes a one-way valve component (60), the base (4) has a channel (5), the channel (5) can be connected to the first accommodating chamber (50a), at least part of the one-way valve component (60) is located in the channel (5), the one-way valve component (60) includes at least two one-way valves (61), at least part of each of the one-way valves (61) is located in the same plane, and the same plane where the one-way valves (61) are located is defined as a first plane, and the first plane is parallel to or coplanar with the reference plane.

6. The fluid control assembly (1) according to any one of claims 1 to 5, characterized in that: The base (4) comprises a mounting portion (40) and a connecting portion (50), at least a portion of the first valve component (30) is located in the connecting portion (50), at least a portion of the second valve component (20) and at least a portion of the third valve component (10) are located in the mounting portion (40), and the mounting portion (40) and the connecting portion (50) are an integral structure.

7. The fluid control assembly (1) according to claim 6, characterized in that: The connecting portion (50) comprises a metal material, and the connecting portion (50) is formed by forging or casting.

8. The fluid control assembly (1) according to claim 6, characterized in that: The base (4) has a first sub-channel (41), one end of the first sub-channel (41) is connected to the first installation cavity (40a), and the other end of the first sub-channel (41) has a first opening (41a) at the base (4). The fluid control component (1) also includes a heat insulating portion (55), at least a portion of the heat insulating portion (55) is located between a wall defining the first sub-channel (41) and the first valve component (30).

9. The fluid control assembly (1) according to claim 8, characterized in that: The fluid control component (1) further comprises a third sub-channel (43), one end of the third sub-channel (43) being connected to the second mounting cavity (40b), and the other end of the third sub-channel (43) having an opening, the heat insulation portion (55) comprising a heat insulation groove, at least a portion of the third sub-channel (43) being located between the third valve component (10) and the first valve component (30), and at least a portion of the opening of the third sub-channel (43) being directed toward the heat insulation groove.

10. The fluid control assembly (1) according to claim 6 or 9, characterized in that: The first valve component (30) comprises a first control part (31) and a first interface part (36), the first interface part (36) being capable of being electrically connected or signal-connected to the first control part (31); the second valve component (20) comprises a second control part (21) and a second interface part (25), the second interface part (25) being capable of being electrically connected or signal-connected to the second control part (21); the third valve component (10) comprises a third control part (11) and a third interface part (16), the third interface part (16) being capable of being electrically connected or signal-connected to the third control part (11); the axis of the third valve component (10), the axis of the second valve component (20) and the axis of the first valve component (30) are connected on the reference plane to form a triangle, and projections of at least a portion of the third interface part (16) and / or at least a portion of the second interface part (25) and / or at least a portion of the first interface part (36) are located within the triangle.

Images