Electric valve with built-in cavity

Abstract

The utility model belongs to the technical field of engines, and particularly relates to a cavity built-in electric valve which comprises a shell, a valve body structure arranged in a containing cavity defined by the shell and a rotary driver arranged outside the shell, and the shell is provided with a mounting hole and a shell outlet. The valve body structure comprises a valve body provided with a fluid channel, a fluid inlet of the fluid channel is formed in the mounting hole, and the portion, at the fluid inlet, of the valve body and the portion, at the mounting hole, of the shell are sealed. The static valve is fixedly installed in the fluid channel, the movable valve is attached to the side, corresponding to the fluid outlet, of the static valve, the elastic compression structure is used for enabling the movable valve to be tightly attached to the static valve, the rotary driver is in transmission connection with the movable valve, the static valve is provided with a static valve outflow channel located on one side of the rotating axis, and the movable valve is correspondingly provided with a movable valve outflow channel. The electrically operated valve with the built-in cavity solves the problem that a cooling pipeline for heat dissipation of an existing hydraulic retarder cannot regulate and control the flow of cooling liquid, and heat efficiency loss of an engine can be reduced.

Description

Technical Field

[0001] This utility model belongs to the field of engine technology, and in particular relates to a cavity-embedded electric valve. Background Technology

[0002] An engine is a thermal engine that converts the heat energy released from fuel combustion into power. It generates a lot of heat when it is working. Existing engines are equipped with cooling systems to dissipate heat. The wax thermostat of the cooling system can control the flow of coolant as needed to ensure that the engine operates within a suitable temperature range.

[0003] With technological advancements and increasing user demands, many vehicles are equipped with hydraulic retarders for braking. During braking, these retarders generate significant heat. To address this, cooling pipes are installed at the front end of the wax-type thermostat. When the vehicle is braking, the hydraulic retarder is active, resulting in high cooling demands. When the vehicle is not braking, these demands decrease significantly. However, regardless of the cooling requirements, the cooling pipes are always supplying coolant, meaning the coolant flow rate cannot be adjusted according to the retarder's cooling needs, severely impacting engine thermal efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a cavity-integrated electric valve, which aims to solve the problem that the cooling pipes of existing hydraulic retarders cannot regulate the coolant flow rate, thereby reducing the thermal efficiency loss of the engine.

[0005] This utility model discloses a cavity-integrated electric valve, comprising a housing, a valve body structure disposed within a cavity enclosed by the housing, and a rotary actuator disposed outside the housing. The housing has a mounting hole communicating with the cavity and a housing outlet. The valve body structure includes a valve body with a fluid channel. The fluid inlet of the fluid channel is located at the mounting hole, and the valve body at the fluid inlet is sealed to the housing at the mounting hole. The fluid outlet of the fluid channel is located within the cavity. The component further includes a stationary valve fixedly installed inside the fluid channel to separate the fluid inlet and the fluid outlet, a moving valve attached to the side of the stationary valve near the fluid outlet, and an elastic compression structure for making the moving valve tightly attached to the stationary valve. The rotary actuator is drivenly connected to the moving valve to drive the moving valve to rotate about a rotation axis perpendicular to the contact surface between the moving valve and the stationary valve. The stationary valve has a stationary valve outlet channel located on one side of the rotation axis of the moving valve, and the moving valve has a corresponding moving valve outlet channel.

[0006] As an improvement, the cavity-integrated electric valve further includes a drive shaft rotatably mounted on the housing along the rotation axis of the moving valve, the drive shaft being inserted into the accommodating cavity and being drivenly connected to the rotary actuator; and an actuating member disposed between the drive shaft and the moving valve, the actuating member being connected to the moving valve and slidably mounted on the drive shaft along the rotation axis of the moving valve, the actuating member being non-rotatable from the drive shaft.

[0007] As an improvement, the valve body includes a pipe structure, the first port of which is the fluid inlet, and a valve cover that is disposed on the second port of the pipe structure. The fluid outlet is disposed on the side wall of the pipe structure at the second port of the pipe structure. The drive shaft passes through the valve cover, and the elastic compression structure is disposed between the valve cover and the actuating element.

[0008] As an improvement, fluid outlets are provided on the side walls of the tube structure on opposite sides at the second port of the tube structure.

[0009] As an improvement, the valve cover is provided with an axial mounting hole; the actuating member includes a small-diameter shaft portion inserted into the axial mounting hole, a large-diameter shaft portion fixed to one end of the small-diameter shaft portion near the moving valve, and at least two connecting arms fixed to the side of the large-diameter shaft portion away from the small-diameter shaft portion. The at least two connecting arms are spaced apart around the circumference of the rotating axis of the moving valve, and the at least two connecting arms are respectively inserted into the moving valve; the elastic compression structure is provided between the valve cover and the large-diameter shaft portion, pushing the at least two connecting arms of the actuating member to be respectively inserted into the moving valve.

[0010] As an improvement, the pipe structure is configured as a bent pipe, with a 90-degree angle between the axial direction of the first port of the bent pipe and the axial direction of the second port of the bent pipe.

[0011] As an improvement, the stationary valve is provided with at least two stationary valve outlet channels, which are evenly distributed circumferentially along the rotation axis of the moving valve. The moving valve is provided with a moving valve outlet channel corresponding to each stationary valve outlet channel, and the shape of the moving valve outlet channel is the same as that of the stationary valve outlet channel.

[0012] As an improvement, the fluid channel is configured as a circular orifice, the stationary valve and the moving valve are configured as discs, and the stationary valve and the moving valve are coaxially arranged.

[0013] As an improvement, the static valve outlet channel is provided in two places, located on opposite sides of the rotation axis of the dynamic valve; the static valve outlet channel is configured as a fan-shaped through hole, the inner and outer arc-shaped sides of the fan-shaped through hole are coaxial with the rotation axis of the dynamic valve, and the included angle between the straight sides on both sides of the fan-shaped through hole is 80 degrees.

[0014] As an improvement, the outer casing is provided with a branch outlet communicating with the accommodating cavity and a detection and installation port.

[0015] The beneficial effects achieved by adopting the above technical solution are as follows:

[0016] The cavity-embedded electric valve of this utility model includes a housing, a valve body structure disposed inside the cavity enclosed by the housing, and a rotary actuator disposed outside the housing. The housing has a mounting hole and a housing outlet respectively communicating with the cavity. The valve body structure includes a valve body with a fluid channel. The fluid inlet of the fluid channel is disposed at the mounting hole, and the valve body at the fluid inlet and the housing at the mounting hole are sealed together. The fluid outlet of the fluid channel is disposed inside the cavity. It also includes a stationary valve fixedly installed inside the fluid channel to separate the fluid inlet and the fluid outlet, a moving valve attached to the side of the stationary valve near the fluid outlet, and an elastic compression structure for making the moving valve tightly attached to the stationary valve. The rotary actuator is drivenly connected to the moving valve to drive the moving valve to rotate around a rotation axis perpendicular to the contact surface between the moving valve and the stationary valve. The stationary valve has a stationary valve outlet channel located on one side of the rotation axis of the moving valve, and the moving valve has a corresponding moving valve outlet channel.

[0017] In use, the built-in electric valve is installed in the cooling pipe of the hydraulic retarder. When the vehicle brakes, the rotary actuator drives the actuating valve to rotate around the rotation axis perpendicular to the stationary valve, so that the actuating valve's outlet channel and the stationary valve's outlet channel are either staggered or directly opposite each other. Coolant flows in from the fluid inlet of the fluid channel, passes through the stationary valve outlet channel and the actuating valve outlet channel, and then flows out through the fluid outlet, flowing into the cavity enclosed by the housing. After passing through the housing outlet, it flows to the hydraulic retarder for heat dissipation. Due to the elastic compression structure, the actuating valve can fit tightly against the stationary valve, forming a seal between the actuating and stationary valve surfaces, preventing coolant leakage from the contact surface. The coolant flow rate is affected by the size of the staggered area between the actuating and stationary valve outlet channels. When the staggered area is larger, the coolant flow rate increases, and when the actuating valve outlet channel and the stationary valve outlet channel are directly opposite each other, the coolant flow rate increases. The flow rate is at its maximum. As the flow rate decreases in the overlapping area, the coolant flow rate decreases and stops flowing when the flow channels of the moving valve and the stationary valve are misaligned. Specifically, when the vehicle is braking, the hydraulic retarder starts to operate, and its heat dissipation demand increases significantly. The overlapping area between the flow channels of the moving valve and the stationary valve needs to be increased to meet the heat dissipation requirements of the hydraulic retarder. When the vehicle is not braking, the heat dissipation demand of the hydraulic retarder decreases significantly. The overlapping area between the flow channels of the moving valve and the stationary valve is reduced until they are misaligned, and the coolant stops flowing. When the coolant pressure is too high, the coolant can push the moving valve and the actuating element connected to the moving valve to slide away from the stationary valve along the drive axis, creating a gap between the moving valve and the stationary valve, and flowing out from the gap to relieve pressure and prevent excessive coolant pressure from damaging the cavity-built electric valve and the coolant supply equipment. The cavity-embedded electric valve of this utility model can be driven by a rotary actuator to rotate the moving valve according to the received control signal to adjust the size of the intersecting area between the moving valve outlet channel and the stationary valve outlet channel, thereby achieving the regulation of coolant flow. This solves the problem that the existing cooling pipes for hydraulic retarder heat dissipation cannot regulate coolant flow, and can reduce the thermal efficiency loss of the engine. Attached Figure Description

[0018] Figure 1 This is a side view of the cavity-embedded electric valve of this utility model.

[0019] Figure 2 This utility model relates to a cavity-embedded electric valve. Figure 1 Schematic diagram of the cross-sectional structure of line AA (closed);

[0020] Figure 3 This is a three-dimensional structural diagram of the static and dynamic valves of the cavity-embedded electric valve in the closed state of this utility model.

[0021] Figure 4This utility model relates to a cavity-embedded electric valve. Figure 1 Schematic diagram of the cross-sectional structure of line AA (open state);

[0022] Figure 5 This is a three-dimensional structural diagram of the static valve and the dynamic valve in the open state of the cavity-embedded electric valve of this utility model.

[0023] Figure 6 This is a three-dimensional structural diagram of the valve body of the cavity-embedded electric valve of this utility model;

[0024] Among them, 10, outer shell; 11, mounting hole; 12, outer shell outlet; 13, branch outlet; 14, detection mounting port; 21, fluid inlet; 22, fluid outlet; 23, static valve; 231, static valve outlet channel; 24, moving valve; 241, moving valve outlet channel; 25, bend body; 26, valve cover; 261, annular groove; 30, rotary actuator; 31, drive shaft; 40, actuating element; 41, small diameter shaft body; 42, large diameter shaft body; 43, connecting arm; 50, elastic compression structure. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] Figures 1 to 6 This is a schematic diagram of the cavity-embedded electric valve of this utility model, wherein, Figure 1 This diagram shows a side view of the cavity-embedded electric valve of this invention. Figure 2 The cavity-embedded electric valve of this utility model is shown. Figure 1 Schematic diagram of the cross-sectional structure of line AA (closed). Figure 3 This diagram shows a three-dimensional structural schematic of the stationary and moving valves of the cavity-embedded electric valve of this invention in the closed state. Figure 4 The cavity-embedded electric valve of this utility model is shown. Figure 1 Cross-sectional view of line AA (open state) Figure 5 This diagram shows a three-dimensional structural schematic of the stationary and moving valves of the cavity-embedded electric valve of this invention in the open state. Figure 6 A three-dimensional structural diagram of the valve body of the cavity-embedded electric valve of this utility model is shown. For ease of description, only the parts relevant to this utility model are shown in the figure.

[0027] It should be noted that if the directional indications (such as up, down, front, back, etc.) involved in this utility model are only used to explain the relative positional relationship between the components in a certain specific posture, the directional indications will change accordingly if the specific posture changes; if the descriptions of "first", "second", etc. involved in this utility model are used for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated.

[0028] Depend on Figures 1 to 6 As can be seen, the cavity-integrated electric valve of this utility model includes a housing 10, a valve body structure disposed inside the accommodating cavity enclosed by the housing 10, and a rotary actuator 30 disposed outside the housing 10. The housing 10 is provided with a mounting hole 11 and a housing outlet 12 respectively communicating with the accommodating cavity; the valve body structure includes a valve body, the valve body is provided with a fluid channel, the fluid inlet 21 of the fluid channel is disposed at the mounting hole 11, and the valve body at the fluid inlet 21 and the housing 10 at the mounting hole 11 are sealed together; the fluid outlet 22 of the fluid channel is disposed inside the accommodating cavity, and a rotary actuator 30 is fixedly installed on... The fluid passage includes a stationary valve 23 for separating the fluid inlet 21 and the fluid outlet 22, a moving valve 24 attached to the side of the stationary valve 23 near the fluid outlet 22, and an elastic compression structure 50 for tightly fitting the moving valve 24 to the stationary valve 23. A rotary actuator 30 is connected to the moving valve 24 for driving the moving valve 24 to rotate around a rotation axis perpendicular to the contact surface between the moving valve 24 and the stationary valve 23. The stationary valve 23 is provided with a stationary valve outlet channel 231 located on one side of the rotation axis of the moving valve 24, and the moving valve 24 is provided with a corresponding moving valve outlet channel 241.

[0029] In use, the built-in electric valve is installed in the cooling pipe of the hydraulic retarder. When the vehicle brakes, the rotary actuator 30 drives the actuating valve 24 to rotate around the rotation axis perpendicular to the stationary valve 23, so that the actuating valve outlet channel 241 of the actuating valve 24 and the stationary valve outlet channel 231 of the stationary valve 23 are either staggered or directly opposite each other. Coolant flows in from the fluid inlet 21 of the fluid channel, passes through the stationary valve outlet channel 231 and the actuating valve outlet channel 241, and then flows out through the fluid outlet 22, and flows into the cavity enclosed by the housing 10, and then through the housing 10. After exiting the outer casing 12, the coolant flows to the hydraulic retarder for heat dissipation. Due to the elastic compression structure 50, the moving valve 24 is tightly fitted to the stationary valve 23, creating a seal between their contact surfaces. This prevents coolant leakage from the contact surfaces. The coolant flow rate is affected by the size of the overlapping area between the moving valve outlet channel 241 and the stationary valve outlet channel 231. A larger overlapping area results in a larger coolant flow rate, which is maximized when the moving valve outlet channel 241 and the stationary valve outlet channel 231 are directly aligned. Figure 5As shown, when the crossover area shrinks, the coolant flow rate decreases and stops flowing when the flow channel 241 of the moving valve and the flow channel 231 of the stationary valve are misaligned. Figure 3 As shown; specifically, when the vehicle is braking, the hydraulic retarder starts to operate, and its heat dissipation demand increases significantly. The area between the moving valve outlet channel 241 and the stationary valve outlet channel 231 needs to be increased to meet the retarder's heat dissipation requirements. When the vehicle is not braking, the retarder's heat dissipation demand decreases significantly. The area between the moving valve outlet channel 241 and the stationary valve outlet channel 231 is reduced until they are misaligned, and the coolant stops flowing. When the coolant pressure is too high, the coolant can push the moving valve 24 and the actuating element 40 connected to the moving valve 24 to slide away from the stationary valve 23 along the drive shaft 31, creating a gap between the moving valve 24 and the stationary valve 23, and the coolant flows out from the gap, thus relieving pressure and preventing excessive coolant pressure from damaging the built-in electric valve and the coolant supply equipment. The cavity-embedded electric valve of this utility model can be driven by the rotary actuator 30 to rotate the moving valve 24 according to the received control signal to adjust the size of the intersecting area between the moving valve outlet channel 241 and the stationary valve outlet channel 231 to achieve the regulation of coolant flow rate. This solves the problem that the existing cooling pipes for hydraulic retarder heat dissipation cannot regulate coolant flow rate and can reduce the thermal efficiency loss of the engine.

[0030] In this utility model, such as Figure 2 and Figure 4 As shown, in order to facilitate the rotation of the actuator 24, the cavity-integrated electric valve also includes a drive shaft 31 rotatably mounted on the housing 10 along the rotation axis of the actuator 24. The drive shaft 31 is inserted into the accommodating cavity and is connected to the rotary actuator 30. An actuating member 40 is provided between the drive shaft 31 and the actuator 24. The actuating member 40 is connected to the actuator 24 and is slidably mounted on the drive shaft 31 along the rotation axis of the actuator 24. The actuating member 40 and the drive shaft 31 cannot rotate.

[0031] Specifically, the valve body includes a pipe structure, the first port of which is a fluid inlet 21, and a valve cover 26 covering the second port of the pipe structure. The fluid outlet 22 is located on the side wall of the pipe structure at the second port. Typically, fluid outlets 22 are provided on opposite side walls at the second port of the pipe structure to balance the outflow pressure. Specifically, the valve cover 26 is fixedly installed at the second port of the pipe structure by bolt connection. The drive shaft 31 passes through the valve cover 26, and the elastic compression structure 50 is located between the valve cover 26 and the actuating member 40.

[0032] For ease of installation, a rectangular connecting hole is provided on the actuating component 40, and a rectangular insertion rod adapted to the rectangular connecting hole is provided at the end of the drive shaft 31. After the rectangular insertion rod is inserted into the rectangular connecting hole, the rotation of the drive shaft 31 can drive the actuating component 40 to rotate. At the same time, since the rectangular insertion rod and the rectangular connecting hole are in an insertion relationship, axial relative sliding can occur. In some other embodiments, the connection between the drive shaft 31 and the actuating component 40 can also be configured as follows: an axial circular hole is provided on the actuating component 40, and grooves are provided on opposite sides of the axial circular hole. Guide protrusions for insertion into the grooves are provided on opposite sides of the end of the drive shaft 31 that inserts into the axial circular hole.

[0033] like Figure 2 and Figure 4 As shown, the valve cover 26 is provided with an axial mounting hole; the actuating member 40 includes a small-diameter shaft portion 41 inserted into the axial mounting hole, a large-diameter shaft portion 42 fixed to one end of the small-diameter shaft portion 41 near the moving valve 24, and at least two connecting arms 43 fixed to the side of the large-diameter shaft portion 42 away from the small-diameter shaft portion 41. The at least two connecting arms 43 are spaced apart around the circumference of the rotation axis of the moving valve 24, and the at least two connecting arms 43 are respectively inserted into the moving valve 24; the elastic compression structure 50 is provided between the valve cover 26 and the large-diameter shaft portion 42, pushing the at least two connecting arms 43 of the actuating member 40 to be inserted into the moving valve 24 respectively. Specifically, each connecting arm 43 is provided with an insertion groove on the moving valve 24, and the at least two connecting arms 43 are respectively inserted into the corresponding insertion groove. Usually, there are two connecting arms 43, which are respectively located on opposite sides of the rotation axis of the moving valve 24. To facilitate manufacturing, the small-diameter shaft body 41, the large-diameter shaft body 42, and at least two connecting arm parts 43 are connected as an integral structure and integrally formed by machining or casting.

[0034] Correspondingly, an annular groove 261 is provided on the side of the valve cover 26 near the moving valve 24, surrounding the axial mounting hole. The elastic compression structure 50 is provided inside the annular groove 261 and abuts against the large-diameter shaft body 42. Usually, the elastic compression structure 50 is set as a spring, but it can also be set as an elastic sleeve.

[0035] Furthermore, the pipe structure is configured as a bent pipe 25, with a 90-degree angle between the axial direction of the first port and the axial direction of the second port of the bent pipe 25. Of course, the pipe structure can also be configured as a straight pipe.

[0036] In this utility model, such as Figure 3 , Figure 4 and Figure 5As shown, the stationary valve 23 has at least two stationary valve outlet channels 231, which are evenly distributed circumferentially along the rotation axis of the moving valve 24. Corresponding to each stationary valve outlet channel 231, the moving valve 24 has a corresponding moving valve outlet channel 241, the shape of which is the same as that of the stationary valve outlet channel 231. Because the at least two stationary valve outlet channels 231 on the stationary valve 23 are evenly distributed circumferentially along the rotation axis of the moving valve 24, the pressure on the moving valve 24 can be balanced, preventing the stationary valve 23 from becoming skewed.

[0037] Specifically, there are two static valve outlet channels 231, located on opposite sides of the rotation axis of the dynamic valve 24, and correspondingly, there are two dynamic valve outlet channels 241.

[0038] To facilitate more accurate control of coolant flow, the static valve outlet channel 231 is configured as a fan-shaped through-hole, with the inner and outer arc-shaped sides of the fan-shaped through-hole coaxial with the rotation axis of the moving valve 24. Furthermore, the included angle between the straight sides of the fan-shaped through-hole is 80 degrees. This ensures that when the moving valve outlet channel 241 and the static valve outlet channel 231 are misaligned, there is a 10-degree overlap between the moving valve 24 portion on the side of the moving valve outlet channel 241 and the static valve 23 portion on the side of the static valve outlet channel 231. This maximizes the coolant flow between the moving valve 24 and the static valve 23 while maintaining a good seal between them.

[0039] Typically, the fluid passage is configured as a circular orifice, and correspondingly, the stationary valve 23 and the moving valve 24 are configured as discs, with the stationary valve 23 and the moving valve 24 arranged coaxially.

[0040] In this invention, the outer shell 10 is also provided with a branch outlet 13 that communicates with the accommodating cavity, which can cool different positions.

[0041] Furthermore, the outer casing 10 is also provided with a detection mounting port 14 that communicates with the accommodating cavity, for installing pressure detection sensors, temperature detection sensors, etc., to facilitate real-time monitoring of the state of the coolant inside the accommodating cavity.

[0042] In this utility model, in order to facilitate installation and to facilitate the sealing between the valve body at the fluid inlet 21 and the outer shell 10 at the mounting hole 11, a flange is fixedly installed on the valve body at the fluid inlet 21, and the installation and sealing are achieved through the flange.

[0043] In some other embodiments, a connecting ring is provided at the fluid inlet 21 corresponding to the valve body, and the mounting ring is integrated with the valve body to achieve installation and sealing.

[0044] In this invention, the rotary driver 30 is fixedly mounted on the housing 10.

[0045] Specifically, the rotary actuator 30 includes an actuator housing fixedly mounted to the housing 10, a motor fixedly mounted inside the actuator housing, and a drive gear fixedly mounted to the output shaft of the motor. The drive shaft 31 is rotatably mounted to the actuator housing, and a driven gear meshing with the drive gear is fixedly mounted at one end of the drive shaft 31 that inserts into the actuator housing. This gear transmission reduces the rotation of the drive shaft 31, further improving control precision. Typically, the motor is a servo motor, capable of precisely controlling the rotation angle of its output shaft, thereby enabling precise control of the rotation angle of the rotary valve 24.

[0046] In some other embodiments, the drive shaft 31 may also be the output shaft of a motor, with the motor directly fixed to the housing 10.

[0047] The above description is only some embodiments of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cavity-embedded electric valve, characterized in that, The device includes a housing, a valve body structure disposed inside a cavity enclosed by the housing, and a rotary actuator disposed outside the housing. The housing has a mounting hole and a housing outlet respectively communicating with the cavity. The valve body structure includes a valve body with a fluid channel. The fluid inlet of the fluid channel is located at the mounting hole, and the valve body at the fluid inlet and the housing at the mounting hole are sealed together. The fluid outlet of the fluid channel is located inside the cavity. The device also includes a stationary valve fixedly installed inside the fluid channel to separate the fluid inlet and the fluid outlet, a movable valve attached to the side of the stationary valve near the fluid outlet, and an elastic compression structure for tightly fitting the movable valve to the stationary valve. The rotary actuator is drivenly connected to the movable valve to drive the movable valve to rotate about a rotation axis perpendicular to the contact surface between the movable valve and the stationary valve. The stationary valve has a stationary valve outlet channel located on one side of the rotation axis of the movable valve, and the movable valve has a corresponding movable valve outlet channel.

2. The cavity-embedded electric valve according to claim 1, characterized in that, The cavity-embedded electric valve further includes a drive shaft rotatably mounted on the housing along the rotation axis of the moving valve. The drive shaft is inserted into the accommodating cavity and is connected to the rotary actuator. An actuating element is disposed between the drive shaft and the moving valve. The actuating element is connected to the moving valve and is slidably mounted on the drive shaft along the rotation axis of the moving valve. The actuating element and the drive shaft cannot rotate with each other.

3. The cavity-embedded electric valve according to claim 2, characterized in that, The valve body includes a pipe structure, the first port of which is the fluid inlet, and a valve cover that is disposed on the second port of the pipe structure. The fluid outlet is disposed on the side wall of the pipe structure at the second port of the pipe structure. The drive shaft passes through the valve cover, and the elastic compression structure is disposed between the valve cover and the actuating element.

4. The cavity-embedded electric valve according to claim 3, characterized in that, The fluid outlets are respectively provided on the side walls of the tube structure on both sides of the second port of the tube structure.

5. The cavity-embedded electric valve according to claim 3, characterized in that, The valve cover is provided with an axial mounting hole; the actuating member includes a small-diameter shaft portion inserted into the axial mounting hole, a large-diameter shaft portion fixed to one end of the small-diameter shaft portion near the moving valve, and at least two connecting arms fixed to the side of the large-diameter shaft portion away from the small-diameter shaft portion. The at least two connecting arms portions are arranged circumferentially along the rotation axis of the moving valve, and the at least two connecting arms portions are respectively inserted into the moving valve; the elastic compression structure is provided between the valve cover and the large-diameter shaft portion, pushing the at least two connecting arms portions of the actuating member to be respectively inserted into the moving valve.

6. The cavity-embedded electric valve according to claim 3, characterized in that, The tube structure is configured as a bent tube, with a 90-degree angle between the axial direction of the first port and the axial direction of the second port.

7. The cavity-embedded electric valve according to any one of claims 1 to 6, characterized in that, The stationary valve is provided with at least two stationary valve outlet channels, which are evenly distributed circumferentially along the rotation axis of the moving valve. The moving valve is provided with a moving valve outlet channel corresponding to each stationary valve outlet channel, and the shape of the moving valve outlet channel is the same as that of the stationary valve outlet channel.

8. The cavity-embedded electric valve according to claim 7, characterized in that, The fluid channel is configured as a circular orifice, and the stationary valve and the moving valve are configured as discs, with the stationary valve and the moving valve arranged coaxially.

9. The cavity-embedded electric valve according to claim 8, characterized in that, The static valve has two outlet channels, located on opposite sides of the rotation axis of the dynamic valve. The static valve outlet channel is configured as a fan-shaped through hole, with the inner and outer arc-shaped sides of the fan-shaped through hole coaxial with the rotation axis of the dynamic valve. The included angle between the straight sides of the two sides of the fan-shaped through hole is 80 degrees.

10. The cavity-embedded electric valve according to claim 1, characterized in that, The outer casing is provided with a branch outlet communicating with the accommodating cavity and a detection and installation port.

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