Fluid valve assembly of parallel lift valve integrated cooling shell

Abstract

The invention belongs to the field of fluid control valves, and provides a fluid valve assembly of a parallel lift valve integrated cooling shell, which comprises a cooling shell, an inner valve body and an adjusting sealing piece. Wherein a main cooling water channel and parallel airflow channels are formed in the cooling shell; the inner valve body is connected to the cooling shell and can control the opening degree of the airflow channel. The inner valve body is further matched with the cooling shell to form a side cooling water channel with the two ends communicating with the main cooling water channel. The base part is connected to the cooling shell, the expansion part is connected to the base part and can expand when heated, and the base part is used for being matched to form a side cooling water channel and located between two side ports, used for being communicated with the main cooling water channel, of the side cooling water channel. The expansion part extends into the main cooling water channel and can adjust the opening degree of the main cooling water channel through thermal expansion deformation.

Description

Technical Field

[0001] The present application belongs to the field of fluid control valves, and in particular, relates to a fluid valve assembly with a parallel poppet valve and an integrated cooling housing. Background Art

[0002] The automobile exhaust gas recirculation valve is one of the most important components in today's automobile engines. It is widely used in various diesel engines and gasoline engines and can effectively reduce NOx emissions. Traditional fluid valves, also known as conventional EGR valves, are prone to seal failure or reduced flow control accuracy due to thermal expansion under high temperature or high flow conditions. Although the parallel valve body design can improve the flow regulation capability, it lacks adaptive adjustment of the valve body temperature, resulting in insufficient sealing and reliability of the fluid valve during operation, which has always been a technical pain point that needs to be solved in this field. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a fluid valve assembly with a parallel poppet valve integrated with a cooling housing, so as to solve the technical problems of poor sealing and reliability of the fluid valve in the prior art during operation.

[0004] To achieve the above-mentioned purpose, the technical solution adopted in the present application is: to provide a fluid valve assembly with a parallel poppet valve integrated with a cooling housing, comprising: Cooling the shell to form a main cooling water channel and a parallel air flow channel; An inner valve body connected to the cooling shell and capable of controlling the opening of the airflow channel, the inner valve body also cooperates with the cooling shell to form a side cooling water channel with both ends connected to the main cooling water channel; An adjusting seal is formed to form a base portion connected to the cooling shell and an expansion portion connected to the base portion and capable of thermal expansion, the base portion is used to cooperate in forming the side cooling water channel and is located between two side ports of the side cooling water channel for communicating with the main cooling water channel, the expansion portion extends into the main cooling water channel and can adjust the opening of the main cooling water channel by thermal expansion deformation to adjust the amount of cooling water entering the side cooling water channel from the front end of the expansion portion.

[0005] Optionally, the main cooling water channel is a channel with a circular cross section; The expansion portion forms a cylindrical structure whose axial direction is perpendicular to the main cooling water channel.

[0006] Optionally, the regulating seal further comprises a rib connected to the expansion portion; The retaining edge forms an arc-shaped edge which is adapted to the main cooling water channel and is coaxially arranged with the main cooling water channel.

[0007] Optionally, the regulating seal further comprises a skeleton made of metal material and arranged inside the expansion portion, the skeleton is a U-shaped bending structure and the free ends have extensions that are away from each other, the center line of the U-shape is parallel to and not higher than the axis of the main cooling water channel, and the extension direction of the extension is perpendicular to the extension direction of the main cooling water channel; A plurality of heat-conducting holes communicating with the side cooling water channel are formed on the base portion, and at least a portion of the extension portion is disposed in the heat-conducting holes.

[0008] Optionally, the regulating seal further comprises an annular sealing ring and a connecting portion for connecting the annular sealing ring to the base portion; The annular sealing ring is arranged between the inner valve body and the cooling shell, and the side cooling water channel is located inside the annular sealing ring. The thickness of the base part and the connecting part are both smaller than the thickness of the annular sealing ring.

[0009] Optionally, a groove for accommodating the annular sealing ring and a first boss and a second boss spaced apart inside the groove are formed on the cooling shell; Through holes for connecting the main cooling water channel to the side cooling water channel are respectively formed on the first boss and the second boss. The base portion is clamped between the first boss and the second boss, and a through hole for the expansion portion to pass through is also formed on the cooling shell.

[0010] Optionally, a plurality of spherical protrusions are formed on the annular sealing ring; The spherical protrusions are evenly distributed around the axial direction of the annular sealing ring, and the first boss, the second boss, and the side wall of the cooling shell used to form the slot are all in contact with the annular sealing ring through the spherical protrusions.

[0011] Optionally, a plurality of reinforcing rib plates arranged side by side and spaced apart are formed on the inner valve body.

[0012] Optionally, the inner valve body is provided with a valve stem capable of controlling the opening of the airflow channel, and a guide sleeve coaxially sleeved on the valve stem; The guide sleeve is connected to the cooling shell and is slidably connected to the valve stem. The guide sleeve is used to form an annular carbon deposition groove coaxially arranged with the valve stem on the side wall in contact with the valve stem.

[0013] Optionally, the inner valve body is further provided with a driving assembly drivingly connected to the valve stem; The driving assembly includes a power output shaft and a permanent magnet and a turntable coaxially connected to the power output shaft. The permanent magnet is glued to the turntable, and a surface of the turntable for bonding with the permanent magnet forms a plurality of annular grooves coaxial with the power output shaft.

[0014] The beneficial effect of the fluid valve assembly of the parallel lifting valve integrated cooling shell in the present application is that: compared with the prior art, in the fluid valve assembly provided in the present application, the base part connected to the cooling shell and used to cooperate in forming the side cooling water channel can transfer the heat in the side cooling water channel to the expansion part connected to the base part. Since the base part is located between the two side ports of the side cooling water channel for communicating with the main cooling water channel, and since the expansion part extends into the main cooling water channel and can adjust the opening of the main cooling water channel by thermal expansion and deformation, when the temperature of the inner valve body rises and causes the water temperature in the side cooling water channel to rise, the expansion part will also automatically expand due to heat and reduce the opening of the main cooling water channel. In this way, a part of the water flow in the main cooling water channel affected by this will enter the side cooling water channel to cool the inner valve body. Therefore, in this embodiment, the inner valve body can always be maintained within the preset temperature range, so that the fluid valve assembly of the parallel lifting valve integrated cooling shell in the present application can also form good sealing and reliability under high temperature conditions, which is far superior to the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 This is a schematic diagram of the exploded structure of the fluid valve assembly in the embodiment of the present application; Figure 2 The cross-sectional structure of the fluid valve assembly in the embodiment of the present application is shown in FIG. Figure 1 ; Figure 3 The cross-sectional structure of the fluid valve assembly in the embodiment of the present application is shown in FIG. Figure 2 ; Figure 4 The cross-sectional structure of the fluid valve assembly in the embodiment of the present application is shown in FIG. Figure 3 ; Figure 5 This is a schematic diagram of the overall structure of the adjustable seal in the embodiment of the present application; Figure 6 for Figure 3 A partial enlarged view of the middle part; Figure 7 for Figure 4 A partial enlarged view of point B in the middle; Figure 8 for Figure 4 A partial enlarged view of point C in the middle; Fig. 9 It is a schematic diagram of the three-dimensional structure of the fluid valve assembly in the embodiment of the present application.

[0017] Among them, the reference numerals in the figure are: 100, cooling shell; 101, main cooling water channel; 102, air flow channel; 200, inner valve body; 201, side cooling water channel; 202, reinforcing rib plate; 203, valve stem; 204, guide sleeve; 205, annular carbon deposition groove; 2051, conical protrusion; 206, drive assembly; 261, power output shaft; 262, permanent magnet; 263, turntable; 264, annular groove; 265, coil ; 266, grooved cam plate; 267, roller; 268, valve core; 300, adjusting seal; 301, base; 302, expansion portion; 303, rib; 304, skeleton; 3041, extension portion; 305, heat conduction hole; 306, sealing ring; 307, connecting portion; 308, slot; 309, first boss; 310, second boss; 311, through hole; 312, through hole; 313, spherical protrusion. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0019] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0020] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0022] Please also read Figures 1 to 9Now, a fluid valve assembly with a parallel poppet valve integrated with a cooling housing 100 provided in an embodiment of the present application is described. The fluid valve assembly includes a cooling housing 100, an inner valve body 200, and an adjusting seal 300. Among them: The cooling shell 100 forms a main cooling water channel 101 and a parallel air flow channel 102; the inner valve body 200 is connected to the cooling shell 100 and can control the opening of the air flow channel 102. The inner valve body 200 also cooperates with the cooling shell 100 to form a side cooling water channel 201 whose two ends are connected to the main cooling water channel 101; the adjusting seal 300 forms a base portion 301 connected to the cooling shell 100 and an expansion portion 302 connected to the base portion 301 and capable of thermal expansion. The base portion 301 is used to cooperate in forming the side cooling water channel 201 and is located between the two side ports of the side cooling water channel 201 for communicating with the main cooling water channel 101. The expansion portion 302 extends into the main cooling water channel 101 and can adjust the opening of the main cooling water channel 101 by thermal expansion and deformation to adjust the amount of cooling water entering the side cooling water channel 201 from the front end of the expansion portion 302. In this embodiment, the airflow channel 102 is used to recycle the exhaust gas of the engine. The inner valve body 200 can adopt a valve body structure commonly used in the art to meet the purpose of adjusting the opening of the airflow channel 102. No further details are given here. In addition, in this embodiment, the expansion part 302 can be made of an expandable material commonly used in the art. For example, in this embodiment, the expansion part 302 can be made of a rubber material.

[0023] According to the above structure provided in the present embodiment, in the fluid valve assembly provided in the present embodiment, the base portion 301 connected to the cooling shell 100 and used to cooperate in forming the side cooling water channel 201 can conduct the heat in the side cooling water channel 201 to the expansion portion 302 connected to the base portion 301. Since the base portion 301 is located between the two side ports of the side cooling water channel 201 for communicating with the main cooling water channel 101, and since the expansion portion 302 extends into the main cooling water channel 101 and can adjust the opening of the main cooling water channel 101 by thermal expansion deformation, when the temperature of the inner valve body 200 rises and conducts When the water temperature in the side cooling water channel 201 rises, the expansion part 302 will automatically expand due to the heat and reduce the opening of the main cooling water channel 101, so that a part of the water flow in the main cooling water channel 101 affected by this will enter the side cooling water channel 201, increasing the amount of cooling water flowing into the side cooling water channel 201, thereby enhancing the ability to cool the inner valve body 200. Therefore, in this embodiment, the inner valve body 200 can always be maintained within the preset temperature range, so that the fluid valve assembly of the parallel lifting valve integrated cooling shell 100 in this application can also form good sealing and reliability under high temperature conditions, which is far superior to the prior art.

[0024] In another embodiment of the present application, please refer to Figures 1 to 9, the main cooling water channel 101 is a channel with a circular cross section; the expansion part 302 forms a cylindrical structure with an axial direction perpendicular to the main cooling water channel 101. According to the above structure provided in this embodiment, the expansion part 302 with a cylindrical structure is set to be axially perpendicular to the main cooling water channel 101 with a circular cross section, that is, it can satisfy the cooling water flowing through the expansion part 302 in the main cooling water channel 101. On the one hand, the water flow can fully contact the inner wall of the main cooling water channel 101 and promptly take away the heat transferred to the cooling shell 100 by the air flow channel 102 for effective cooling. On the other hand, it also makes the expansion part 302 have sufficient strength, and the cooling water flow can smoothly flow along the surface of the expansion part 302. The combined effect of the two effectively prevents the cooling water in the main cooling water channel 101 from vibrating the expansion part 302, thereby extending the connection life of the expansion part 302 and the base part 301, ensuring the reliability of the entire valve assembly, and the expansion part 302 can achieve a more precise adjustment of the diversion cooling water when the expansion part 302 expands or shrinks.

[0025] In another embodiment of the present application, please refer to Figures 1 to 9 The regulating seal 300 further includes a rib 303 connected to the expansion portion 302; the rib 303 forms an arc edge whose shape is adapted to the main cooling water channel 101 and is coaxially arranged with the main cooling water channel 101. According to the above structure provided in this embodiment, the rib 303 whose shape is adapted to the main cooling water channel 101 can form a more precise regulating effect on the opening of the main cooling water channel 101, which is conducive to further improving the sealing reliability of the fluid valve assembly in this embodiment under high temperature conditions.

[0026] In another embodiment of the present application, please refer to Figures 1 to 9The regulating seal 300 also includes a skeleton 304 made of metal material and arranged inside the expansion part 302. The skeleton 304 is a U-shaped bending structure and has extensions 3041 that are far away from each other at the free ends. The center line of the U-shape is parallel to and not higher than the axis of the main cooling water channel 101. The extension direction of the extension 3041 is perpendicular to the extension direction of the main cooling water channel 101. Here, the skeleton 304 is made of a metal material with a high thermal expansion coefficient such as pure copper, brass, beryllium bronze, aluminum alloy, etc., and is wrapped inside the base part 301 and the expansion part 302 during the compression molding or injection molding process of the regulating seal 300; a plurality of heat conduction holes 305 connected to the side cooling water channel 201 are formed on the base part 301, and at least a portion of the extension 3041 is arranged in the heat conduction hole 305. According to the above structure provided in this embodiment, the skeleton 304 disposed inside the expansion part 302 can, on the one hand, strengthen the structural strength of the expansion part 302 and prevent it from vibrating under the impact of the water flow in the main cooling water channel 101. On the other hand, since the heat conduction hole 305 is connected with the side cooling water channel 201 and since at least a part of the extension part 3041 is disposed in the heat conduction hole 305, the heat in the side cooling water channel 201 can be quickly transferred to the skeleton 304. After being heated, the skeleton 304 expands and props up the expansion part 302 from the inside to reduce the effective path between the expansion part 302 and the main cooling water channel 101. In this way, more cooling water can enter the side cooling water channel 201 to enhance the cooling effect on the inner valve body 200. In this way, the expansion part 302 can form a precise adjustment effect on the opening of the main cooling water channel 101, which is also conducive to further improving the sealing performance and reliability of the fluid valve assembly in this embodiment under high temperature conditions.

[0027] According to the above structure provided in this embodiment, the skeleton 304 is designed as a U-shaped bending structure, which can more easily propel the expansion part 302 to a longer length after being heated, and the lateral size of the main cooling water channel 101 becomes larger, with a large adjustment range and high sensitivity, which is also beneficial to improving the fatigue life of the skeleton 304.

[0028] In another embodiment of the present application, please refer to Figures 1 to 9The regulating seal 300 also includes an annular sealing ring 306 and a connecting portion 307 that connects the annular sealing ring 306 to the base portion 301; the annular sealing ring 306 is padded between the inner valve body 200 and the cooling shell 100 and the side cooling water channel 201 is located inside the annular sealing ring 306, and the thickness of the base portion 301 and the connecting portion 307 are both smaller than the thickness of the annular sealing ring 306, wherein the connecting portion 307 is also smaller than the thickness of the base portion 301. According to the above structure provided in the present embodiment, the thickness of the annular sealing ring 306 is the thickest, so that the annular sealing ring 306 can form an interference fit with the inner valve body 200 and the cooling shell 100 respectively, thereby forming a better sealing effect between the inner valve body 200 and the cooling shell 100. Since the thickness of the base portion 301 is less than the thickness of the annular sealing ring 306 (which is also the cross-sectional diameter of the annular sealing ring 306), the base portion 301 can have a good buffering capacity when the expansion portion 302 increases, and the connecting portion 307 is the thinnest among the three. In this way, when the expansion portion 302 increases, the connecting portion 307 has better flexibility, so that the expansion or contraction deformation of the expansion portion 302 is smoother, which is also conducive to further improving the sealing and reliability of the fluid valve assembly in the present embodiment under high temperature conditions.

[0029] In another embodiment of the present application, please refer to Figures 1 to 9 The cooling housing 100 is formed with a slot 308 for accommodating the annular sealing ring 306 and a first boss 309 and a second boss 310 arranged at intervals inside the slot 308; the first boss 309 and the second boss 310 are respectively formed with through holes 311 for connecting the main cooling water channel 101 to the side cooling water channel 201, the base 301 is clamped between the first boss 309 and the second boss 310, and the cooling housing 100 is also formed with a through hole 312 for the expansion part 302 to pass through. According to the above structure provided in this embodiment, the slot 308 and the first boss 309 and the second boss 310 arranged on the cooling housing 100 can make the annular sealing ring 306 and the base 301 form better position stability, which is also conducive to further improving the sealing reliability of the fluid valve assembly in this embodiment under high temperature conditions.

[0030] In another embodiment of the present application, please refer to Figures 1 to 9A plurality of spherical protrusions 313 are formed on the annular sealing ring 306 ; the spherical protrusions 313 are evenly distributed around the axial direction of the annular sealing ring 306 , and the first boss 309 , the second boss 310 and the side wall of the cooling shell 100 used to form the slot 308 are all in contact with the annular sealing ring 306 through the spherical protrusions 313 . According to the above structure provided in the present embodiment, the several spherical protrusions 313 formed on the annular sealing ring 306 can, on the one hand, make the annular sealing ring 306 stably positioned in the groove 308, and on the other hand, the interference fit of the annular sealing ring 306 can be designed to be larger, so that when the annular sealing ring 306 is closed and pressed by the inner valve body 200 and the cooling shell 100 during assembly, the deformed portion of the annular sealing ring 306 can be absorbed by the gap formed by the spherical protrusions 313, so that when the temperature changes, the annular sealing ring 306 is always pressed against the inner valve body 200 and the cooling shell 100 due to sufficient interference fit, thereby forming a better sealing effect on the side cooling water channel 201, which is also conducive to further improving the sealing and reliability of the fluid valve assembly in the present embodiment under high temperature conditions.

[0031] In another embodiment of the present application, please refer to Figures 1 to 9 A plurality of reinforcing ribs 202 arranged side by side and spaced apart are also formed on the inner valve body 200. According to the above structure provided in this embodiment, the reinforcing ribs 202 formed on the inner valve body 200 can not only improve the structural strength of the inner valve body 200, but also improve its heat dissipation effect, which is also conducive to further improving the sealing performance and reliability of the fluid valve assembly in this embodiment.

[0032] In another embodiment of the present application, please refer to Figures 1 to 9 The inner valve body 200 is provided with a valve stem 203 capable of controlling the opening of the air flow channel 102, and a guide sleeve 204 coaxially sleeved on the valve stem 203; the guide sleeve 204 is connected to the cooling shell 100 and is slidably connected to the valve stem 203, and the guide sleeve 204 is used to form an annular carbon deposition groove 205 coaxially arranged with the valve stem 203 on the side wall in contact with the valve stem 203. As a preferred embodiment, at least one end face of the annular carbon deposition groove 205 also has a conical protrusion 2051 extending axially toward the valve stem 203, wherein the edge of the conical protrusion 2051 that slides with the valve stem 203 is a sharp edge. According to the above structure provided in the present embodiment, in addition to providing a sliding guide for the movement of the valve stem 203, the guide sleeve 204 can also collect tiny carbon particles that enter the gap between the valve stem 203 and the guide sleeve 204 through the annular carbon deposit groove 205 formed thereon. At the same time, due to the sharp edge of the conical protrusion 2051, it is easier to scrape off the carbon deposits on the valve stem 203 and guide them into the annular carbon deposit groove 205. This can effectively prevent the carbon deposits from moving upward along the valve stem 203 to protect the drive assembly 206, and reduce the wear and vibration of the valve stem 203, which is also beneficial to further improve the sealing and reliability of the fluid valve assembly in the present embodiment.

[0033] In another embodiment of the present application, please refer to Figures 1 to 9 , the inner valve body 200 is also equipped with a driving assembly 206 that is transmission-connected to the valve stem 203; the driving assembly 206 includes a power output shaft 261 and a permanent magnet 262 and a turntable 263 that are coaxially connected to the power output shaft 261, the permanent magnet 262 is glued to the turntable 263, and the surface of the turntable 263 for bonding with the permanent magnet 262 forms a plurality of annular grooves 264 that are coaxial with the power output shaft 261. According to the above structure provided in this embodiment, the annular grooves 264 formed on the turntable 263 can be used to accommodate more glue and increase the bonding area, so that the permanent magnet 262 and the turntable 263 can form a better stable connection relationship so as to more accurately control the movement of the valve stem 203, which is also conducive to further improving the sealing reliability of the fluid valve assembly in this embodiment under high temperature conditions. In the specific implementation process, the annular groove 264 can be set to a circular cross-section with a diameter of 0.1 to 0.5 mm, and can also be set to an elliptical cross-section with a width of 0.2-1 mm and a depth of 0.2-0.6 mm. For the convenience of description, the cross-sectional shape of the annular groove 264 is a circle as an example for description in this embodiment.

[0034] In the above structure provided in this embodiment, it can be understood that the drive assembly 206 generally also includes a coil 265 for outputting a controlled variable magnetic flux to interact with the permanent magnet 262 and thereby drive the permanent magnet 262 and the turntable 263 to drive the output shaft 261 to rotate, a grooved cam plate 266 installed at the end of the output shaft 261 away from the permanent magnet 262, and a roller 267 installed at the upper end of the valve stem 203, a grooved cam with a preset track is opened on the grooved cam plate 266, and the outer circumferential surface of the roller 267 is in contact with the grooved cam Rolling fit, so that the coil 265 drives the output shaft 261 to drive the grooved cam plate 266 to rotate a set angle, so that the valve stem 203 can be moved along its own axial direction by a set distance, and then the valve core 268 installed at the lower end of the valve stem 203 controls the opening of the air flow channel 102. Here, the installation method of the coil 265, its cooperation with the permanent magnet 262, the detection of the angle of rotation of the turntable 263, and the cooperation between the valve core 268 and the air flow channel 102, etc., which are not described in detail, can adopt the existing EGR valve technology.

[0035] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A fluid valve assembly with parallel poppet valve integrated cooling housing, characterized in that: include: A cooling shell (100) is formed to form a main cooling water channel (101) and a parallel air flow channel (102); an inner valve body (200) connected to the cooling housing (100) and capable of controlling the opening of the airflow channel (102); the inner valve body (200) also cooperates with the cooling housing (100) to form a side cooling water channel (201) whose two ends are connected to the main cooling water channel (101); An adjusting seal (300) is formed with a base portion (301) connected to the cooling shell (100) and an expansion portion (302) connected to the base portion (301) and capable of thermal expansion, wherein the base portion (301) is used to cooperate with the side cooling water channel (201) and is located between two side ports of the side cooling water channel (201) for communicating with the main cooling water channel (101), and the expansion portion (302) extends into the main cooling water channel (101) and is capable of adjusting the opening of the main cooling water channel (101) by thermal expansion deformation to adjust the amount of cooling water entering the side cooling water channel (201) from the front end of the expansion portion (302).

2. The fluid valve assembly according to claim 1, characterized in that: The main cooling water channel (101) is a channel with a circular cross section; The expansion portion (302) forms a cylindrical structure axially perpendicular to the main cooling water channel (101).

3. The fluid valve assembly according to claim 2, characterized in that: The regulating seal (300) further comprises a retaining edge (303) connected to the expansion portion (302); The retaining edge (303) is formed into an arc-shaped edge whose shape is adapted to the main cooling water channel (101) and is coaxially arranged with the main cooling water channel (101).

4. The fluid valve assembly according to claim 1, characterized in that: The regulating seal (300) further comprises a skeleton (304) made of a metal material and arranged inside the expansion portion (302); the skeleton (304) is a U-shaped bending structure and has extension portions (3041) at free ends that are separated from each other; the center line of the U-shape is parallel to and not higher than the axis of the main cooling water channel (101); and the extension direction of the extension portion (3041) is perpendicular to the extension direction of the main cooling water channel (101); A plurality of heat-conducting holes (305) in communication with the side cooling water channel (201) are formed on the base portion (301), and at least a portion of the extension portion (3041) is disposed in the heat-conducting holes (305).

5. The fluid valve assembly according to claim 1, characterized in that: The regulating seal (300) further comprises an annular sealing ring (306) and a connecting portion (307) for connecting the annular sealing ring (306) to the base portion (301); The annular sealing ring (306) is cushioned between the inner valve body (200) and the cooling shell (100), and the side cooling water channel (201) is located inside the annular sealing ring (306), and the thickness of the base portion (301) and the connecting portion (307) are both smaller than the thickness of the annular sealing ring (306).

6. The fluid valve assembly according to claim 5, characterized in that: The cooling housing (100) is formed with a groove (308) for accommodating the annular sealing ring (306), and a first boss (309) and a second boss (310) arranged at intervals inside the groove (308); Through holes (311) are respectively formed on the first boss (309) and the second boss (310) for connecting the main cooling water channel (101) to the side cooling water channel (201); the base portion (301) is clamped between the first boss (309) and the second boss (310), and a through hole (312) is also formed on the cooling shell (100) for the expansion portion (302) to pass through.

7. The fluid valve assembly according to claim 6, characterized in that: A plurality of spherical protrusions (313) are formed on the annular sealing ring (306); The spherical protrusions (313) are evenly distributed around the axial direction of the annular sealing ring (306), and the first boss (309), the second boss (310) and the side wall of the cooling shell (100) used to form the slot (308) are all in contact with the annular sealing ring (306) through the spherical protrusions (313).

8. The fluid valve assembly according to claim 1, characterized in that: The inner valve body (200) is also formed with a plurality of reinforcing rib plates (202) arranged side by side and at intervals.

9. The fluid valve assembly according to claim 1, characterized in that: The inner valve body (200) is provided with a valve stem (203) capable of controlling the opening of the airflow channel (102), and a guide sleeve (204) coaxially sleeved on the valve stem (203); The guide sleeve (204) is connected to the cooling shell (100) and is slidably connected to the valve stem (203); the guide sleeve (204) is used to form an annular carbon deposition groove (205) coaxially arranged with the valve stem (203) on a side wall in contact with the valve stem (203).

10. The fluid valve assembly according to claim 1, characterized in that: The inner valve body (200) is further provided with a drive assembly (206) drivingly connected to the valve stem (203); The drive assembly (206) comprises a power output shaft (261), and a permanent magnet (262) and a turntable (263) coaxially connected to the power output shaft (261); the permanent magnet (262) is glued to the turntable (263); and a surface of the turntable (263) for bonding with the permanent magnet (262) forms a plurality of annular grooves (264) coaxial with the power output shaft (261).

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