CN218764093U - Fluid control assembly and refrigerating system - Google Patents

Abstract

The utility model discloses a fluid control subassembly and refrigerating system, it belongs to the refrigeration technology field, and the fluid control subassembly includes the valve body and installs respectively in the choke valve device, first valve device and the second valve device of valve body, the axial of first valve device is parallel or perpendicular with the axial of choke valve device, and at least part of first valve device is located the first valve room of valve body, and at least part of second valve device is located the second valve room of valve body, and at least part of choke valve device is located the third valve room of valve body; the valve body is provided with an inlet flow passage, an outlet flow passage, a first flow passage and a second flow passage; the inlet flow passage is communicated with the first valve chamber, the first valve chamber is communicated with the third valve chamber through the first flow passage, and the extending direction of the first flow passage is vertical to the axial direction of the throttle valve device or the included angle is an acute angle; the second valve chamber is communicated with the third valve chamber through a second flow passage. The utility model discloses be favorable to improving fluid control assembly's space utilization.

Description

Fluid control assembly and refrigerating system

Technical Field

The utility model relates to a refrigeration technology field especially relates to a fluid control subassembly and refrigerating system.

Background

The vehicle thermal management system has different requirements on the supercooling degree of the working medium in different working modes, so that a valve and a system pipeline are required to be arranged in the system, and corresponding circulation paths are selectively opened aiming at different working modes so as to meet the requirements on different supercooling degrees of the working medium.

In order to simplify the connection structure, a plurality of components are integrated into one valve body, but how to improve the space utilization rate of integration is still a problem which needs to be solved urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fluid control subassembly and refrigerating system are favorable to improving fluid control subassembly's space utilization.

As the conception, the utility model adopts the technical proposal that:

a fluid control assembly including a valve body, and a throttle valve device, a first valve device and a second valve device respectively mounted to the valve body, an axial direction of the first valve device being parallel to or perpendicular to an axial direction of the throttle valve device, at least a portion of the first valve device being located in a first valve chamber of the valve body, at least a portion of the second valve device being located in a second valve chamber of the valve body, and at least a portion of the throttle valve device being located in a third valve chamber of the valve body;

the valve body is provided with an inlet flow passage, an outlet flow passage, a first flow passage and a second flow passage; the inlet flow passage is communicated with the first valve chamber, the first valve chamber is communicated with the third valve chamber through the first flow passage, and the extending direction of the first flow passage is perpendicular to the axial direction of the throttle valve device or forms an acute angle with the axial direction of the throttle valve device; the second valve device has an axial direction perpendicular to an axial direction of the throttle valve device, and the second valve chamber and the third valve chamber communicate with each other through the second flow passage.

The utility model has the advantages that: the utility model provides a fluid control subassembly and refrigerating system, the axial of first valve gear and choke valve device's axial direction parallel or perpendicular, the axial of second valve gear and choke valve device's axial direction perpendicular, through design the entrance runner in the valve body, the export runner, first runner and second runner, the extending direction of first runner and choke valve device's axial direction perpendicular or have the contained angle, the extending direction of second runner and choke valve device's axial direction perpendicular or have the contained angle, make choke valve device and first valve device, can switch on through first runner and second runner short distance between the second valve device, be favorable to improving fluid control subassembly's space utilization.

Drawings

Fig. 1 is a first perspective view of a fluid control assembly provided by an embodiment of the present invention;

fig. 2 is a second perspective view of a fluid control assembly provided by an embodiment of the present invention;

fig. 3 is a schematic structural view of a fluid control assembly, not shown, of the first valve device according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a longitudinal cross-section of a fluid control assembly provided by an embodiment of the present invention;

fig. 5 is an enlarged schematic view of the utility model at the point B shown in fig. 4;

fig. 6 is a schematic diagram of another longitudinal cross-section of a fluid control assembly provided by an embodiment of the present invention;

fig. 7 is a schematic diagram of yet another longitudinal cross-section of a fluid control assembly provided by an embodiment of the present invention;

figure 8 is a top view of the structure of figure 3 according to the present invention;

fig. 9 is a schematic view of a cross-section of a fluid control assembly provided by an embodiment of the present invention;

figure 10 is an elevational view of the structure of figure 9 in accordance with the present invention;

fig. 11 is a partial cross-sectional view of a valve body provided by an embodiment of the present invention;

fig. 12 is a sectional view of a valve body provided by an embodiment of the present invention;

fig. 13 is a top view of a fluid control assembly provided by an embodiment of the present invention;

figure 14 isbase:Sub>A cross-sectional viewbase:Sub>A-base:Sub>A of figure 13 in accordance with the present invention;

fig. 15 is a schematic view of a fluid control assembly having a third outlet provided by an embodiment of the present invention;

fig. 16 is a front view of a fluid control assembly having a third outlet provided by an embodiment of the present invention;

fig. 17 is a first schematic diagram of a refrigeration system according to an embodiment of the present invention;

fig. 18 is a second schematic diagram of a refrigeration system according to an embodiment of the present invention;

fig. 19 is a schematic diagram of another refrigeration system provided by an embodiment of the present invention.

In the figure:

1. a valve body; 11. a first valve chamber; 1101. a boss; 12. an inlet flow passage; 121. a first flow path; 122. a second flow path; 13. a first inlet; 14. an outlet flow channel; 141. a first sub-outlet flow passage; 142. a second sub-outlet flow passage; 15. a first outlet; 16. a second valve chamber; 17. a third valve chamber; 171. a first sub-chamber; 172. a second sub-chamber; 18. a first flow passage; 19. a second flow passage; 110. a third flow path; 111. a second outlet; 112. a fourth valve chamber; 113. a second inlet; 114. a third outlet; 200. a step portion;

100. a throttle valve device; 2. a power head assembly; 21. an air box head; 22. a first seal ring; 23. a second transmission rod; 24. tabletting; 25. a second seal ring;

3. a valve core assembly; 31. an adjusting seat; 32. an elastic portion; 321. a belleville spring; 322. adjusting the spring; 33. a valve core; 34. a first drive lever; 35. a seal ring;

4. a first valve device; 41. a first coil; 42. a first valve seat assembly; 43. a first screw assembly;

5. a second valve device; 51. a second coil; 52. a second valve seat assembly; 53. a second screw assembly;

10. a heat exchange assembly; 101. a heat exchanger; 102. an evaporator; 20. a cooler; 30. a compressor; 40. a condenser; 50. a gas-liquid separator; 60. a device to be cooled; 70. a first switch; 80. a second switch.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements relevant to the present invention are shown in the drawings.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

Example one

The embodiment provides a fluid control assembly, which is beneficial to improving the space utilization rate of the fluid control assembly.

As shown in fig. 1 to 3, the fluid control assembly includes a valve body 1, and a throttle valve device 100, a first valve device 4, and a second valve device 5 respectively mounted to the valve body 1. The valve body 1 has an inlet flow passage 12, a first inlet 13, an outlet flow passage 14, a first outlet 15, a first flow passage 18, and a second flow passage 19. The valve body 1 further includes a first valve chamber 11, a second valve chamber 16, and a third valve chamber 17. The first inlet 13 is a port of the inlet flow channel 12 on the valve body 1. The first flow passage 18 and the second flow passage 19 are respectively provided inside the valve body 1.

In the present embodiment, the axial direction of the first valve device 4 is parallel to or perpendicular to the axial direction of the throttle valve device 100, and in the present embodiment, as shown in fig. 4, the axial direction of the first valve device 4 is perpendicular to the axial direction of the throttle valve device 100. At least part of the first valve device 4 is located in the first valve chamber 11, and parts of the first valve device 4 where the inlet and outlet are located in the first valve chamber 11. At least part of the second valve device 5 is located in the second valve chamber 16 and the parts of the second valve device 5 where the inlet and outlet are located in the second valve chamber 16. The throttle device 100 includes a power head assembly 2 and a valve core assembly 3, at least a portion of the valve core assembly 3 is located in the third valve chamber 17 of the valve body 1, and the power head assembly 2 is movably abutted against the valve core assembly 3.

The inlet flow passage 12 communicates with the first valve chamber 11 so that the medium can enter the first valve chamber 11 through the inlet flow passage 12. The first valve chamber 11 communicates with the third valve chamber 17 through a first flow passage 18, so that the medium in the first valve chamber 11 can flow into the third valve chamber 17 through the first flow passage 18. In the present embodiment, the extending direction of the first flow passage 18 is perpendicular to the axial direction of the throttle valve device 100 or forms an acute angle with the axial direction of the throttle valve device 100, as shown in fig. 4, in the present embodiment, the extending direction of the first flow passage 18 is perpendicular to the axial direction of the throttle valve device 100. Referring to fig. 9 or 10, the axial direction of the second valve device 5 is perpendicular to the axial direction of the throttle device 100, the second valve chamber 16 is communicated with the third valve chamber 17 through the second flow passage 19, the extending direction of the second flow passage 19 is perpendicular to the axial direction of the throttle device 100 or forms an acute angle with the axial direction of the throttle device 100, and in this embodiment, the extending direction of the second flow passage 19 is perpendicular to the axial direction of the throttle device 100. The second valve chamber 16 can communicate with the outlet flow passage 14, so that the medium flowing into the second valve chamber 16 can flow out of the outlet flow passage 14. In this embodiment, the first valve chamber 11 can communicate with the outlet flow passage 14, so that the medium in the first valve chamber 11 can also flow out through the outlet flow passage 14.

The fluid control assembly provided by the embodiment has two working states, namely a first working state and a second working state.

When the fluid control assembly is in the first operating state, the medium entering the inlet flow channel 12 through the first inlet 13 flows into the first valve chamber 11, is processed by the first valve device 4 located in the first valve chamber 11, enters the outlet flow channel 14 from the first valve chamber 11, and flows out of the first outlet 15 through the outlet flow channel 14. In the first working state, the first valve device 4 is in an energized state, that is, the first valve device 4 is in a working state, and can adjust parameters such as flow rate, flow velocity, flow direction and the like of a medium entering the first valve device, wherein the first valve device 4 is mainly used as a switching element to control the on-off of the medium; the second valve means 5 is in an inactive state. In this embodiment, the first valve device 4 may be a solenoid valve or an expansion valve, which is not limited in this embodiment.

When the fluid control assembly is in the second operating state, the first valve chamber 11 communicates with the third valve chamber 17 via the first flow passage 18, the medium entering the inlet flow passage 12 via the first inlet 13 flows into the first valve chamber 11, the medium in the first valve chamber 11 flows into the third valve chamber 17 via the first flow passage 18, throttled by the throttle device 100, enters the second flow passage 19, is throttled by the second flow passage 19 into the second valve chamber 16, is conditioned by the second valve device 5 located in the second valve chamber 16, enters the outlet flow passage 14, and flows out of the fluid control assembly via the first outlet 15. Wherein the first valve device 4 is in a power-off state, that is, the first valve device 4 is in an inoperative state, and only functions as a passage, and does not regulate fluid flowing through the first valve device, and the second valve device 5 is in a power-on state, that is, the second valve device 5 is in an operative state, and can regulate parameters such as flow, velocity, flow direction and the like of a medium entering the second valve device.

It should be noted that in other embodiments, the first valve device 4 may be a one-way valve or the outlet flow channel 14 may have a one-way valve installed therein to prevent the medium flowing from the second valve chamber 16 into the outlet flow channel 14 from flowing back to the first valve device 4 or the inlet flow channel 12 when the fluid control assembly is in the second operation state.

Optionally, the fluid control assembly may be applied to a refrigeration system of a vehicle, at this time, the fluid control assemblies in different working states may correspond to different application scenarios, for example, when the refrigeration system charges and cools a battery assembly of the vehicle quickly, the fluid control assembly is in a first working state; the fluid control assembly is in a second operating state when the refrigeration system is refrigerating the passenger compartment of the vehicle.

In the fluid control assembly provided by the present embodiment, the axial direction of the first valve device 4 is parallel to or perpendicular to the axial direction of the throttle valve device 100, the axial direction of the second valve device 5 is perpendicular to the axial direction of the throttle valve device 100, and by designing the inlet flow passage 12, the outlet flow passage 14, the first flow passage 18, and the second flow passage 19 in the valve body 1, the extending direction of the first flow passage 18 is perpendicular to or has an included angle with the axial direction of the throttle valve device 100, so that the throttle valve device 100 can be conducted to the first valve device 4 and the second valve device 5 through the first flow passage 18 and the second flow passage 19 in a short distance, which is beneficial to improving the space utilization rate of the fluid control assembly.

In addition, the inlet flow passage 12, the outlet flow passage 14, the first flow passage 18 and the second flow passage 19 are designed in the valve body 1, so that the throttle valve device 100 and the first valve device 4 and the second valve device 5 can be communicated through the internal flow passages of the valve body 1, fewer inlets and outlets and fewer interfaces can be provided, and the leakage risk is reduced.

In addition, the throttle valve device 100 is integrated with the first valve device 4 and the second valve device 5, so that the fluid control assembly has a compact and simple overall structure, fewer parts to be assembled during assembly, and high installation efficiency, and the fluid control assembly requires a small installation space during installation and use, i.e., the fluid control assembly requires a low installation space, and has a wide application range. The first valve device 4, the second valve device 5 and the throttle valve device 100 share one valve body 1, and a valve main body does not need to be additionally designed for the first valve device 4 and the second valve device 5, so that the use of aluminum materials is reduced, and the cost of a fluid control assembly is reduced.

The specific structure and principle of the first valve device 4 can be seen from the prior art, and exemplarily, the present embodiment provides a first valve device 4, as shown in fig. 4, the first valve device 4 includes a first coil 41, a first valve seat assembly 42 and a first screw assembly 43, wherein one end of the first valve seat assembly 42 is sealingly installed in the first valve chamber 11, the first coil 41 is located outside the valve body 1, and the first screw assembly 43 is used for fixing the first coil 41 and the first valve seat assembly 42 on the valve body 1. It should be noted that the first valve device 4 may be a large-diameter solenoid valve, preferably a two-position two-way solenoid valve of 10 mm or 12 mm.

In this embodiment, the specific structure and principle of the second valve device 5 can be seen from the prior art, and for example, the embodiment provides a second valve device 5, as shown in fig. 10, the second valve device 5 includes a second coil 51, a second valve seat assembly 52 and a second screw assembly 53, wherein one end of the second valve seat assembly 52 is hermetically installed in the second valve chamber 16, the second coil 51 is located outside the valve body 1, and the second screw assembly 53 is used for fixing the second coil 51 and the second valve seat assembly 52 on the valve body 1.

In this embodiment, the aperture of the first valve device 4 is larger than the aperture of the second valve device 5. The first valve device 4 operates when the battery pack is rapidly charged and cooled to have a faster cooling speed and a better cooling effect. The second valve device 5 operates when cooling the passenger compartment, to facilitate energy saving. In the present embodiment, the second valve device 5 is a small-bore electromagnetic valve, and preferably, the second valve device 5 is an NC type electromagnetic valve with a bore of 4 mm.

Alternatively, at least a part of the first valve device 4 has a gap with a wall of the first valve chamber 11, the inlet flow passage 12 communicates with the first flow passage 18 through the gap, and the medium flowing from the inlet flow passage 12 enters the gap and flows into the first flow passage 18 through the gap. As shown in fig. 3 and 4, the valve body 1 includes a boss 1101, and the wall forming the first valve chamber 11 includes the wall of the boss 1101, and the first flow passage 18 extends from the boss 1101 to the throttle valve device 100, that is, one port of the first flow passage 18 is located on the boss 1101. In some embodiments, as shown in FIG. 3, boss 1101 is disposed around a perimeter of first valve chamber 11, and the structure of boss 1101 matches the structure of first valve unit 4 to enable support of first seat assembly 42 of first valve unit 4.

Further, as shown in fig. 3 and 5, the fluid control assembly further includes a step 200. The step 200 is formed on the plane of the projection 1101. In this embodiment, the step 200 is specifically an annular groove. In the radial direction of the first valve device 4, the step 200 is located between the wall of the first flow passage 18 and the side wall of the first valve chamber 11, and the chamber of the step 200 communicates the first valve chamber 11 and the first flow passage 18, so that the medium in the first valve chamber 11 can flow into the first flow passage 18 through the cavity of the step 200. Since the boss 1101 supports the first valve device 4 and the first valve device 4 is in contact with the top surface of the boss 1101, by providing the step portion 200, the flow area of the medium flowing from the first valve chamber 11 to the first flow passage 18 is ensured, which is advantageous for improving the space utilization rate of the valve body 1 and realizing the miniaturization of the valve body 1.

Note that the reason why the first flow passage 18 is not provided near the side wall of the first valve chamber 11 is to avoid the connecting structure between the first valve device 4 and the valve body 1. For example, when the first valve device 4 is screwed to the valve body 1, the connection structure is a screw, and in this case, the side wall of the first valve chamber 11 is threaded and needs to be avoided when the first flow passage 18 is opened, and therefore, the first flow passage 18 is spaced apart from the side wall of the first valve chamber 11. The connection structure is not limited to the form of the screw connection, but may be in other forms, which is not limited in this embodiment.

Optionally, the first flow passage 18 includes one or more, preferably a plurality, and when the first flow passage 18 includes a plurality, the first flow passages 18 are spaced around the axis of the first valve device 4. Because first valve gear 4 is the part of heavy-calibre, consequently set up first runner 18 into a plurality of passage areas that can increase, and then can satisfy the requirement of pressure drop and refrigerating capacity, and, because valve body 1 has the intensity demand, the too big wall thickness that can lead to of aperture of first runner 18 diminishes, influence the intensity of valve body 1, and when the aperture of first runner 18 was too little, the pressure drop of medium was great, consequently, need be on the basis of guaranteeing 1 intensity of valve body and less pressure drop, set up a plurality of first runners 18, the space utilization of fluid control subassembly has been improved. In this embodiment, there are two first flow passages 18, and the two first flow passages 18 are arranged at intervals. In the present embodiment, the plurality specifically means two or more.

The cross-sectional shape of the first flow passage 18 is circular, polygonal, elliptical, etc., and this embodiment is not limited thereto. In some embodiments, as shown in FIG. 8, first flow passage 18 is circular in cross-section. In other embodiments, the first flow passage 18 is oval in cross-section.

Alternatively, as shown in fig. 10, the extending direction of the first flow channel 18 is arranged to be staggered with the spool 33 of the spool assembly 3 in the first direction, that is, the first flow channel 18 is not arranged opposite to the spool 33 in the first direction, so that the medium does not directly impact the spool 33 during flowing out of the first flow channel 18, which is beneficial to reducing the flow resistance of the fluid control assembly. Wherein the first direction is perpendicular to the axial direction of the throttle valve arrangement 100.

As shown in fig. 9, the side wall of the valve body 1 further has a fourth valve chamber 112, specifically, the side wall of the third valve chamber 17 is adjacent to the side wall of the second valve chamber 16, and the side wall of the fourth valve chamber 112 is opposite to the side wall of the third valve chamber 17. Third valve chamber 17 communicates with fourth valve chamber 112, and power head assembly 2 is installed in fourth valve chamber 112.

Further, as shown in fig. 9, the third valve chamber 17 includes a first sub-chamber 171 and a second sub-chamber 172 that are provided in this order in the axial direction of the throttle valve device 100 and communicate with each other. The dimension of the first sub-chamber 171 in the direction perpendicular to the axial direction of the throttle valve apparatus 100 is larger than the dimension of the second sub-chamber 172 in the direction perpendicular to the axial direction of the throttle valve apparatus 100, and the second sub-chamber 172 communicates with the fourth valve chamber 112. One part of the valve core assembly 3 is arranged in the second sub-chamber 171, and the other part of the valve core assembly 3 is arranged in the second sub-chamber 172 and movably abutted with the power head assembly 2. The first flow passage 18 is communicated with the first sub-chamber 171, and the second flow passage 19 is communicated with the second sub-chamber 172, so that the medium flows into the first sub-chamber 171 through the first flow passage 18, is throttled by the valve core assembly 3, and then flows into the second flow passage 19 from the second sub-chamber 172.

Specifically, referring to fig. 6, the valve core assembly 3 includes an adjusting seat 31 hermetically connected to the first sub-chamber 171, an elastic portion 32 disposed in the first sub-chamber 171 and having one end abutting against the adjusting seat 31, a valve core 33 disposed in the first sub-chamber 171 and contacting with the elastic portion 32, and a first transmission rod 34 having one end disposed in the second sub-chamber 172 and the other end movably abutting against the power head assembly 2. One end of the first transmission rod 34 abuts on the spool 33. The valve body 1 has a valve port, the valve port is located at the joint of the first sub-chamber 171 and the second sub-chamber 172, the outer diameter of the valve core 33 is larger than the aperture of the valve port, the medium in the first sub-chamber 171 can flow into the second sub-chamber 172 through the valve port, and the first transmission rod 34 can drive the valve core 33 to move so as to adjust the flow area of the valve port.

Further, as shown in fig. 6, the elastic portion 32 includes a belleville spring 321 and an adjusting spring 322, wherein one end of the adjusting spring 322 is sleeved on one end of the adjusting seat 31 located in the first sub-chamber 171, and the belleville spring 321 is installed at the other end of the adjusting spring 322. A sealing ring 35 is disposed between the adjusting seat 31 and the inner wall of the first sub-chamber 171 to ensure the sealing performance between the valve core assembly 3 and the valve body 1.

Alternatively, in order to secure the flow rate into the second valve device 5, as shown in fig. 9 and 10, the second flow passages 19 are provided in one or more number, and when the second flow passages 19 are provided in plural number, the second flow passages 19 are spaced around the axis of the second valve device 5. In some embodiments, a plurality of second flow channels 19 are arranged parallel to each other. The cross-sectional shape of the second flow channel 19 is circular or elliptical to have a large flow area. Because the valve body 1 has the intensity demand, the too big aperture of second runner 19 can lead to the wall thickness to diminish, influences the intensity of valve body 1, and when the aperture of second runner 19 was too little, the pressure drop of medium was great, consequently, need set up a plurality of second runners 19 on the basis of guaranteeing valve body 1 intensity and less pressure drop, has improved fluid control assembly's space utilization.

In some embodiments, the first flow channel 18 is disposed perpendicular to the first sub-chamber 171, the second flow channel 19 is disposed perpendicular to the second sub-chamber 172, and the axes of the first sub-chamber 171 and the second sub-chamber 172 coincide, so that the first flow channel 18 and the second flow channel 19 can be shorter, and further, the flow path of the medium can be shorter, and the required power can be smaller.

With continued reference to fig. 6, the power head assembly 2 includes an air box head 21, a first sealing ring 22, a second transmission rod 23, a pressing plate 24 and a second sealing ring 25. The air box head 21 is hermetically installed at a port of the fourth valve chamber 112 through the first sealing ring 22, one end of the second transmission rod 23 is fixedly connected to the air box head 21, the other end of the second transmission rod 23 abuts against the first transmission rod 34, and the pressing sheet 24 and the second sealing ring 25 are both used for sealing a gap between the inner wall of the fourth valve chamber 112 and the front end of the second transmission rod 23 so as to prevent the medium in the fourth valve chamber 112 from flowing into the second sub-chamber 172. The working principle of the power head assembly 2 is referred to in the prior art, and the detailed description thereof is omitted here.

Further, the valve body 1 further has a second inlet 113 and a third outlet 114, the second inlet 113 and the third outlet 114 are respectively located on the opposite side walls of the valve body 1, and the second inlet 113 and the third outlet 114 are respectively communicated with the fourth valve chamber 112. In this embodiment, the second inlet 113 and the first inlet 13 are located on the same side wall of the valve body 1, and the third outlet 114 and the first outlet 15 are located on the same side wall of the valve body 1. The medium flows into the fourth valve chamber 112 through the second inlet 113, the medium in the fourth valve chamber 112 acts on the power head assembly 2, and according to the working principle of the power head assembly 2, the power head assembly 2 can drive the valve core 33 to move through the first transmission rod 34 to control the flow area of the valve port. It can be seen that in the second operating state, the fluid control assembly has two flow paths, one flow path being formed by the first inlet 13, the inlet flow passage 12, the first valve chamber 11, the first flow passage 18, the first sub-chamber 171, the second sub-chamber 172, the second flow passage 19, the outlet flow passage 14 and the first outlet 15; the other flow path is composed of the second inlet 113, the fourth valve chamber 112, and the third outlet 114, and the two flow paths do not interfere with each other.

Alternatively, as shown in fig. 4, the inlet flow passage 12 includes a first flow path 121 and a second flow path 122 that are perpendicular to and communicate with each other. The axis of the first flow path 121 is parallel to the axis of the outlet flow path 14, the port of the first flow path 121 on the valve body 1 is the first inlet 13, and the second flow path 122 communicates with the first valve chamber 11.

In some embodiments, as shown in fig. 7, the outlet communicating with the first valve chamber 11 and the outlet communicating with the second valve chamber 16 are one outlet, that is, the outlet through which the medium entering the fluid control assembly flows out when the fluid control assembly is in the first working state is the same as the outlet through which the medium entering the fluid control assembly flows out when the fluid control assembly is in the second working state, and is the first outlet 15. In this implementation, as shown in fig. 4 or fig. 6, the valve body 1 is further provided with a third flow passage 110, the third flow passage 110 is arranged in parallel with the second flow passage 19, one end of the third flow passage 110 is communicated with the outlet of the second valve chamber 16, and the other end of the third flow passage 110 is communicated with the outlet flow passage 14, so that the medium processed by the second valve device 5 flows out through the third flow passage 110, the outlet flow passage 14 and the first outlet 15.

In some other embodiments, as shown in fig. 14 to 16, the outlet flow passage 14 includes a first sub-outlet flow passage 141 and a second sub-outlet flow passage 142, the port of the first sub-outlet flow passage 141 on the valve body 1 is the first outlet 15, the port of the second sub-outlet flow passage 142 on the valve body 1 is the second outlet 111, and the first valve device 4 has a first valve outlet which is communicated with the first outlet 15 through the first sub-outlet flow passage 142; the second valve device 5 has a second valve outlet which communicates with the second outlet 111 through a second sub-outlet flow passage 142. When the fluid control assembly is in the first working state, the first valve chamber 11 is communicated with the first sub outlet flow passage 141, so that the medium in the first valve chamber 11 can flow out of the valve body 1 through the first sub outlet flow passage 141 and the first outlet 15. When the fluid control assembly is in the second working state, the second valve chamber 16 is communicated with the second sub-outlet flow passage 142, so that the medium flows through the second valve device 5 and then flows out of the valve body 1 through the second sub-outlet flow passage 142 and the second outlet 111.

In this embodiment, as shown in fig. 14, the centerline of the outlet of the second valve device 5 is collinear with the axis of the second sub-outlet flow passage 142, so that the medium can have a smaller pressure drop without providing an additional pressure drop to drive the medium to flow from the second valve device 5 to the outlet.

Alternatively, as shown in fig. 16, the first outlet 15 and the second outlet 111 are located on the same side wall of the valve body 1, and the first outlet 15 and the port (i.e., the first inlet 13) of the inlet flow passage 12 on the valve body 1 are located on two opposite side walls, so as to facilitate the connection of the pipelines. In this embodiment, the first outlet 15 and the second outlet 111 are communicated with different heat dissipation structures, and since the state of the medium flowing out from the first outlet 15 is different from the state of the medium flowing out from the second outlet 111, the heat dissipation effect of the two communicated with the same heat dissipation structure is not good, and the connected different heat dissipation structures can have a better heat dissipation effect.

Referring to fig. 4 and 6, the port of the first sub outlet flow passage 141 on the valve body 1 and the port of the second sub outlet flow passage 142 on the valve body 1 are located on the same side wall of the valve body 1. Also, the port of the first sub outlet flow passage 141 on the valve body 1 and the port of the inlet flow passage 12 on the valve body 1 are located at opposite sidewalls, so that the path of the medium flow can be short.

When the fluid control assembly provided by this embodiment is assembled, the internal components of the throttle valve device 100 are assembled in a conventional manner, one component is required to be assembled into the valve body 1, the other two solenoid valve devices (i.e., the first valve device 4 and the second valve device 5) can be assembled in advance, after the parts of the throttle valve device 100 are assembled, the first valve device 4 and the second valve device 5 are screwed into corresponding positions in an inserting manner, and sealing depends on the sealing rings (i.e., the sealing ring 35 and the first sealing ring 22) which are assembled in advance.

The fluid control assembly provided by the embodiment has a compact and simple whole structure, requires fewer parts during assembly, has higher assembly efficiency, reduces the use of aluminum materials because the first valve device 4 and the second valve device 5 do not need to additionally design a valve main body, and has the advantages of small required installation space during product installation and use, compact structure and simplified external connecting pipelines; the interface reduces, reduces the refrigerant and lets out leakage quantity, has reduced and has revealed the risk.

Example two

In the present embodiment, a refrigeration system is provided, as shown in fig. 17, the refrigeration system includes a heat exchange assembly 10, a cooler 20, a compressor 30, a condenser 40 and the fluid control assembly according to the first embodiment, which are connected by a pipeline. The cooler 20 is used for heat exchange with the device to be cooled 60, and specifically, absorbs heat of the device to be cooled 60.

As shown in fig. 17, an outlet of the condenser 40 is communicated with the inlet flow passage 12 of the fluid control assembly, and specifically, the condenser 40 is connected to the first inlet 13 through a pipe to be communicated with the inlet flow passage 12. The outlet of the heat exchange assembly 10 is communicated with the outlet flow channel 14 of the fluid control assembly, specifically, the heat exchange assembly 10 is connected to the first outlet 15 through a pipeline, and the first valve device 4 and the second valve device 5 are connected between the condenser 40 and the heat exchange assembly 10 in parallel.

It should be noted that, as shown in fig. 17 and 18, the outlet of the heat exchange assembly 10 is also communicated with the second inlet 113 through a pipeline, and the third outlet 114 is connected and communicated with the outlet of the cooler 20 through a pipeline. The refrigeration system further includes a gas-liquid separator 50, the gas-liquid separator 50 is connected between the cooler 20 and the compressor 30, and both the medium flowing through the cooler 20 and the medium flowing out of the third outlet 114 need to flow through the gas-liquid separator 50, thereby achieving gas-liquid separation. Fig. 17 is a schematic diagram of the fluid control assembly in the first operating state, and a thick solid line in the diagram indicates a flow path of the medium. Fig. 18 is a schematic view of the fluid control assembly in a second operating state, in which the thick solid lines indicate the flow paths of the media.

Alternatively, as shown in fig. 19, the heat exchange assembly 10 includes a heat exchanger 101 and an evaporator 102, and the outlet flow passage 14 includes a first sub-outlet flow passage 141 and a second sub-outlet flow passage 142, that is, the valve body 1 has a first outlet 15 and a second outlet 111. When the fluid control assembly is in the first operating condition, the first valve device 4 is in communication with the first sub-outlet flow passage 141 via the first outlet 15; when the fluid control assembly is in the second operating state, the second valve device 5 is in communication with the second sub-outlet flow passage 142, the first sub-outlet flow passage 141 is in communication with the heat exchanger 101 through the first outlet 15, and the second sub-outlet flow passage 142 is in communication with the evaporator 102 through the second outlet 111.

Further, the refrigeration system has three refrigeration states, namely a first refrigeration state, a second refrigeration state and a third refrigeration state, and as shown in fig. 19, the refrigeration system further includes a first switch 70 and a second switch 80, the first switch 70 is communicated between the third outlet 114 and the outlet of the cooler 20, and the second switch 80 is communicated between the heat exchanger 101 and the inlet of the cooler 20. In the present embodiment, the first switch 70 and the second switch 80 are control valves such as solenoid valves, but the present embodiment is not limited thereto.

When the refrigeration system is in the first refrigeration state, the first switch 70 is closed, the second switch 80 is opened, at this time, a loop formed by the second valve device 5, the evaporator 102, the second inlet 113 and the third outlet 114 is an open circuit, corresponding to the first working state of the fluid control assembly, the medium flowing out of the outlet of the cooler 20 sequentially passes through the compressor 30 and the condenser 40, enters the inlet flow channel 12 from the first inlet 13 and enters the first valve device 4, flows out to the heat exchanger 101 from the outlet flow channel 14 and the first outlet 15, and flows to the cooler 20 after flowing through the second switch 80 from the outlet of the heat exchanger 101. This first cooling state may be applicable to a scenario where only the battery of the vehicle is cooled.

When the refrigeration system is in the second refrigeration state, the first switch 70 is opened, the second switch 80 is closed, at this time, the flow path formed by the second valve device 5, the evaporator 102, the second inlet 113, the third outlet 114 and the first switch 70 is a passage, the flow path in which the heat exchanger 101 and the second switch 80 are located is an open circuit, corresponding to the second operation state of the fluid control module, the medium flowing out of the outlet of the cooler 20 sequentially passes through the compressor 30 and the condenser 40, enters the inlet flow channel 12 from the first inlet 13 and enters the first valve device 4, the medium entering the first valve device 4 enters the third chamber 17 through the first flow channel 18, is throttled and enters the inlet of the second valve device 5 through the second flow channel 19, flows to the outlet flow channel 14 from the outlet of the second valve device 5 after being controlled by the second valve device 5, specifically flows to the second sub-outlet flow channel 142, flows out through the second sub-outlet flow channel 142 and flows into the evaporator 102, flows out of the evaporator 102, flows into the fourth sub-outlet flow channel 112, flows into the fourth valve device 112, and flows out of the fourth valve device 20. This second cooling state may be applicable to a scenario in which only the passenger compartment of the vehicle is cooled.

When the refrigeration system is in the second refrigeration state, the first switch 70 is turned on, the second switch 80 is turned on, at this time, the medium flowing out of the outlet of the cooler 20 sequentially passes through the compressor 30 and the condenser 40, enters the fluid control assembly through the first inlet 13, enters the medium in the fluid control assembly, enters the first valve device 4 through the inlet flow channel 12, a part of the medium entering the first valve device 4 flows out of the first valve device 4 through the first outlet flow channel 141 and the first outlet 15, enters the heat exchanger 101, then flows out of the outlet of the heat exchanger 101, and enters the cooler 20 through the second switch 80, so as to form a loop. Another part of the medium enters the third valve chamber 17 through the first flow passage 18, is throttled and enters the inlet of the second valve device 5 through the second flow passage 19, flows from the outlet of the second valve device 5 to the second sub-outlet flow passage 142 after being controlled by the second valve device 5, flows out to the evaporator 102 through the second sub-outlet flow passage 142 and the second outlet 111, then flows out from the outlet of the evaporator 102, enters the fourth valve chamber 112 through the second inlet 113, acts on the power head assembly, flows out of the fourth valve chamber 112 through the third outlet 114, flows out, passes through the first switch 70, and flows to the outlet of the cooler 20, and the second refrigeration state is suitable for a simultaneous refrigeration scene of the battery and the passenger compartment.

It should be noted that the medium flowing out of the fluid control assembly through the first outlet 15 is a high-temperature liquid medium which is not throttled, while the medium flowing out of the fluid control assembly through the second outlet 111 is a low-temperature gaseous medium which is throttled, and the states of the media flowing out of the two outlets cannot be mixed to share one heat dissipation structure, so that the first outlet 15 is communicated with the heat exchanger 101, and the second outlet 111 is communicated with the evaporator 102, so that the battery refrigeration and the passenger compartment refrigeration can be simultaneously performed, and the application scenarios are wide.

The refrigerating system that this embodiment provided space utilization is higher, has lower leakage risk, and has better refrigeration effect.

The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. The fluid control assembly is characterized by comprising a valve body (1), and a throttle valve device (100), a first valve device (4) and a second valve device (5) which are respectively installed on the valve body (1), wherein the axial direction of the first valve device (4) is parallel to or perpendicular to the axial direction of the throttle valve device (100), at least part of the first valve device (4) is located in a first valve chamber (11) of the valve body (1), at least part of the second valve device (5) is located in a second valve chamber (16) of the valve body (1), the throttle valve device (100) comprises a power head assembly (2) and a spool assembly (3), at least part of the spool assembly (3) is located in a third valve chamber (17) of the valve body (1), and the power head assembly (2) is movably abutted to the spool assembly (3);

the valve body (1) is provided with an inlet flow passage (12), an outlet flow passage (14), a first flow passage (18) and a second flow passage (19); the inlet flow passage (12) is communicated with the first valve chamber (11), the first valve chamber (11) is communicated with the third valve chamber (17) through the first flow passage (18), and the extending direction of the first flow passage (18) is vertical to the axial direction of the throttle valve device (100) or forms an acute angle with the axial direction of the throttle valve device; the axial direction of the second valve device (5) is perpendicular to the axial direction of the throttle valve device (100), the second valve chamber (16) is communicated with the third valve chamber (17) through the second flow passage (19), the extending direction of the second flow passage (19) is perpendicular to the axial direction of the throttle valve device (100) or forms an acute angle with the axial direction, and the second valve chamber (16) can be communicated with the outlet flow passage (14).

2. A fluid control assembly according to claim 1, wherein at least part of the first valve means (4) has a clearance with a wall of the first valve chamber (11) through which the inlet flow passage (12) communicates with the first flow passage (18), the valve body (1) comprising a boss (1101), the wall forming the first valve chamber (11) comprising the wall of the boss (1101), the first flow passage (18) extending from the boss (1101) towards the throttle valve means (100).

3. A fluid control assembly according to claim 2, wherein the first flow passage (18) comprises a plurality, each first flow passage (18) being spaced about the axis of the first valve means (4).

4. A fluid control assembly according to claim 2 or 3, characterized in that it comprises a step (200), said step (200) opening onto the plane of said boss (1101), in the radial direction of said first valve means (4), said step (200) being located between the wall of said first flow channel (18) and the side wall of said first valve chamber (11), the chamber of said step (200) communicating said first valve chamber (11) and said first flow channel (18).

5. The fluid control assembly according to claim 4, wherein the inlet flow passage (12) includes a first flow passage (121) and a second flow passage (122) which are perpendicular and communicate, an axis of the first flow passage (121) is parallel to an axis of the outlet flow passage (14), the second flow passage (122) communicates with the first valve chamber (11), and an extending direction of the first flow passage (18) is offset from a spool (33) of the spool assembly (3) in a first direction which is perpendicular to an axial direction of the throttle valve device (100).

6. A fluid control assembly according to any one of claims 1-3, wherein the outlet flow channel (14) comprises a first sub-outlet flow channel (141) and a second sub-outlet flow channel (142), the first sub-outlet flow channel (141) being a first outlet (15) at the end of the valve body (1), the second sub-outlet flow channel (142) being a second outlet (111) at the end of the valve body (1), the first valve means (4) having a first valve outlet communicating with the first outlet (15) via the first sub-outlet flow channel (141); the second valve device (5) has a second valve outlet which communicates with the second outlet (111) via the second sub-outlet flow channel (142).

7. The fluid control assembly according to claim 6, characterized in that the first outlet (15) and the second outlet (111) are located in the same side wall of the valve body (1), the first outlet (15) and the inlet flow channel (12) being located in opposite side walls at the valve body (1).

8. The fluid control assembly of claim 6 wherein the centre line of the outlet of the second valve device (5) is co-linear with the axis of the second sub-outlet flow passage (142).

9. The fluid control assembly of claim 1, wherein the third valve chamber (17) comprises a first sub-chamber (171) and a second sub-chamber (172) which are sequentially arranged and communicated along an axial direction of the throttle valve device (100), a part of the valve core assembly (3) is arranged in the first sub-chamber (171), another part of the valve core assembly (3) is arranged in the second sub-chamber (172) and movably abutted with the power head assembly (2), the first flow passage (18) is communicated with the first sub-chamber (171), and the second flow passage (19) is communicated with the second sub-chamber (172).

10. Refrigeration system, characterized in that, comprises a heat exchange assembly (10), a cooler (20), a compressor (30), a condenser (40) and a fluid control assembly as claimed in any one of claims 1 to 9, which are connected by a pipeline, wherein the outlet of the condenser (40) is connected to the inlet flow channel (12) of the fluid control assembly, the outlet of the heat exchange assembly (10) is connected to the outlet flow channel (14) of the fluid control assembly, and the first valve device (4) and the second valve device (5) are connected in parallel between the condenser (40) and the heat exchange assembly (10).

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