阅读说明：本技术 电控式水阀 (Electric control water valve ) 是由 黄瑞 李干明 吴晓飞 于 2019-10-17 设计创作，主要内容包括：本发明涉及一种电控式水阀,该电控式水阀,包括执行器部分和阀体部分,阀体部分包括罩体、阀门和密封件,罩体上的进液口通过阀门上的进液流通口与液流腔保持常通,阀门通过阀杆带动阀门在工作腔内转动,当出液口与对应的出液流通口重合时,液流腔与出液流通口导通,当出液口与对应的出液流通口完全错开时,对应的出液流通口关闭。该水阀结构紧凑,体积小,通过阀门旋转运动,可以对三通阀流通口进行快速切换,切换一次时间不超过10S,而且可以实现无极转角调控,从而能够让高温冷却介质快速进入散热器或热交换器,实现快速降温。从而确保电池和电机在最佳工作温度范围下工作,延长了电池、电机的寿命,增大了电池的续航里程。(The invention relates to an electric control water valve, which comprises an actuator part and a valve body part, wherein the valve body part comprises a cover body, a valve and a sealing piece, a liquid inlet on the cover body is normally communicated with a liquid flow cavity through a liquid inlet circulation port on the valve, the valve drives the valve to rotate in a working cavity through a valve rod, when the liquid outlet is overlapped with a corresponding liquid outlet circulation port, the liquid flow cavity is communicated with the liquid outlet circulation port, and when the liquid outlet is completely staggered with the corresponding liquid outlet circulation port, the corresponding liquid outlet circulation port is closed. The water valve is compact in structure and small in size, the three-way valve flow port can be rapidly switched through the rotary motion of the valve, the switching time is not more than 10S, and stepless corner regulation and control can be realized, so that high-temperature cooling media can rapidly enter a radiator or a heat exchanger, and rapid cooling is realized. Therefore, the battery and the motor are ensured to work in the optimal working temperature range, the service lives of the battery and the motor are prolonged, and the endurance mileage of the battery is increased.)

1. The utility model provides an automatically controlled formula water valve, valve body part is including the cover body (1) and set up valve (2) in the cover body (1), its characterized in that: a working cavity (10) is arranged in the cover body (1), and a liquid inlet (11) and at least one liquid outlet which are communicated with the working cavity (10) are arranged on the side wall of the cover body (1); the valve (2) is sleeved in a working cavity (10) in the cover body (1), a liquid flow cavity (20) is arranged in the valve (2), a liquid inlet opening (21) is formed in the valve (2), the liquid inlet (11) is kept in normal communication with the liquid flow cavity (20) through the liquid inlet opening (21), liquid outlet openings which are matched with the liquid outlets in a one-to-one correspondence mode are formed in the valve (2), and a valve rod (24) communicated with the valve (4) is arranged on the valve (2); the valve (4) drives the valve (2) to rotate in the working cavity (10) through the valve rod (24), when the liquid outlets coincide with the corresponding liquid outlet circulation ports, the liquid flow cavity (20) is communicated with the liquid outlets, and when the liquid outlets are completely staggered with the corresponding liquid outlet circulation ports, the corresponding liquid outlets are closed.

2. An electrically controlled water valve as claimed in claim 1, wherein: the cover body (1) is provided with two liquid outlets, namely a first liquid outlet (12) and a second liquid outlet (13); be equipped with on valve (2) and correspond first liquid outlet circulation mouth (22) of complex with first liquid outlet (12), be equipped with on valve (2) and correspond complex second liquid outlet circulation mouth (23) with second liquid outlet (13).

3. An electrically controlled water valve as claimed in claim 2, wherein: when the first liquid outlet (12) is completely communicated with the first liquid outlet through port (22), the second liquid outlet (13) and the second liquid outlet through port (23) are completely closed; the first liquid outlet (12) and the first liquid outlet port (22) are in the process of being completely communicated to be completely closed, and the second liquid outlet (13) and the second liquid outlet port (23) are in the process of being completely closed to be completely communicated.

4. An electrically controlled water valve as claimed in claim 1, wherein: a sealing gasket (3) is arranged between the inner wall of the cover body (1) and the outer wall of the valve (2), a sealing gasket opening (31) corresponding to the liquid inlet (11) is formed in one side of the sealing gasket (3), and sealing gasket circulation ports which are in one-to-one corresponding fit with the liquid outlets are formed in the sealing gasket (3); a gap is formed between the outer wall of the sealing gasket (3) and the inner wall of the cover body (1), convex outer sealing ring ribs are arranged at the positions of sealing gasket flow openings on the outer wall of the sealing gasket (3), and the outer sealing ring ribs are in close contact with the inner wall of the cover body (1); a gap is arranged between the inner wall of the sealing gasket (3) and the outer wall of the valve (2), inner sealing ring ribs are arranged at the positions of liquid outlet flow openings on the outer wall of the valve (2), and the inner sealing ring ribs are in close contact with the inner wall of the sealing gasket (3).

5. An electrically controlled water valve as claimed in claim 4, wherein: the sealing gasket (3) is installed in the cover body (1) in a cylindrical shape, the inner wall of the cover body (1) protrudes inwards to form a limiting boss, the head end and the tail end of the sealing gasket (3) are respectively abutted to step surfaces on two sides of the limiting boss, and circumferential positioning is formed on the sealing gasket (3).

6. An electrically controlled water valve as claimed in claim 4, wherein: the inner wall of the sealing gasket (3) is a smooth surface.

7. An electrically controlled water valve as claimed in claim 4, wherein: the sealing gasket (3) comprises a rubber outer layer (35) contacted with the cover body (1) and a polytetrafluoroethylene inner layer (36) contacted with the outer wall of the valve (2).

8. An electrically controlled water valve as claimed in claim 6, wherein: the outer rubber layer (35) is thicker (36) than the inner polytetrafluoroethylene layer.

9. An electrically controlled water valve as claimed in claim 4, wherein: the outer wall of the sealing gasket (3) is provided with a positioning convex rib (34) along the axial direction, and the inner wall of the cover body (1) is provided with a positioning groove (14) matched with the positioning convex rib (34).

10. An electrically controlled water valve as claimed in claim 1, wherein: the cover body (1) and the lower end cover (5) are sealed through a sealing ring (6), and the valve rod (24) and the lower end cover (5) are sealed through a B-shaped or double-O-shaped sealing ring (7).

Technical Field

The invention relates to a cooling water valve, in particular to an electric control type water valve.

Background

With the rapid development of new energy automobile technology, people pay more and more attention to the thermal management of new energy automobiles. When the new energy automobile works, a system can generate a large amount of heat, so that the temperature of some parts can reach 120 ℃, the optimal working environment temperature of the motor is 30-60 ℃, the optimal working environment temperature of the battery is 20-30 ℃, and in order to enable the motor and the battery to be in the optimal working temperature environment, an electric control valve is urgently needed to quickly and accurately adjust the temperature of the cooling system.

The temperature regulation is realized through installing mechanical type three-way valve in current new forms of energy motor and the battery cooling system, there is a temperature sensing wax package mechanical type three-way valve inside, open and close of three-way valve is controlled through the temperature of feeling the coolant liquid, because the inherent characteristic of paraffin in the temperature sensing wax package, solid paraffin needs 90S time about in the temperature sensing melting, when cooling medium temperature is on the high side in the cooling system, traditional wax formula three-way valve needs about 90S just can be with valve whole opening, the temperature sensing time is on the long side, can't be better realize the required quick, the accurate regulation of ideal ambient temperature of battery and motor work.

Disclosure of Invention

In order to solve the problems, the invention provides an electric control water valve which can realize stepless corner regulation and control and quickly and accurately regulate the temperature of a cooling system.

The technical scheme adopted by the invention is as follows: an automatically controlled formula water valve, includes executive component and valve body part, valve body part is including the cover body and set up the valve in the cover body, its characterized in that: a working cavity is arranged in the cover body, and a liquid inlet and at least one liquid outlet which are communicated with the working cavity are arranged on the side wall of the cover body; the valve is sleeved in a working cavity in the cover body, a liquid flow cavity is arranged in the valve, a liquid inlet opening is formed in the valve, the liquid inlet opening and the liquid flow cavity are kept normally open through the liquid inlet opening, liquid outlet openings which are matched with the liquid outlets in a one-to-one correspondence mode are formed in the valve, and a valve rod communicated with the valve is arranged on the valve; the valve drives the valve to rotate in the working cavity through the valve rod, when the liquid outlets coincide with the corresponding liquid outlet circulation ports, the liquid flow cavity is communicated with the liquid outlets, and when the liquid outlets are completely staggered with the corresponding liquid outlet circulation ports, the corresponding liquid outlets are closed.

Preferably, the cover body is provided with two liquid outlets, namely a first liquid outlet and a second liquid outlet; the valve is provided with a first liquid outlet circulation port corresponding to and matched with the first liquid outlet, and the valve is provided with a second liquid outlet circulation port corresponding to and matched with the second liquid outlet.

Further, when the first liquid outlet is completely communicated with the first liquid outlet flow port, the second liquid outlet is completely closed with the second liquid outlet flow port; the first liquid outlet and the first liquid outlet flow port are in the process of being completely communicated to be completely closed, and the second liquid outlet flow port are simultaneously in the process of being completely closed to be completely communicated.

Preferably, a sealing gasket is arranged between the inner wall of the cover body and the outer wall of the valve, one side of the sealing gasket is provided with a sealing gasket opening corresponding to the liquid inlet, and the sealing gasket is provided with sealing gasket circulation ports which are matched with the liquid outlets in a one-to-one correspondence manner; a gap is formed between the outer wall of the sealing gasket and the inner wall of the cover body, and the outer wall of the sealing gasket is provided with a convex outer sealing ring rib at the flow opening of the sealing gasket, and the outer sealing ring rib is tightly contacted with the inner wall of the cover body; a gap is formed between the inner wall of the sealing gasket and the outer wall of the valve, inner sealing ring ribs are arranged at the positions of liquid outlet openings on the outer wall of the valve, and the inner sealing ring ribs are in close contact with the inner wall of the sealing gasket.

Furthermore, the sealing gasket is installed in the cover body in a cylindrical shape, the inner wall of the cover body protrudes inwards to form a limiting boss, the head end and the tail end of the sealing gasket are respectively abutted to step surfaces on two sides of the limiting boss, and circumferential positioning is formed on the sealing gasket.

Furthermore, the inner wall of the sealing gasket is a smooth surface.

Further, the sealing gasket comprises a rubber outer layer opposite to the inner wall of the cover body and a polytetrafluoroethylene inner layer opposite to the outer wall of the valve.

Further, the outer rubber layer is thicker than the inner polytetrafluoroethylene layer.

Furthermore, the outer wall of the sealing gasket is axially provided with a positioning convex rib, and the inner wall of the cover body is provided with a positioning groove matched with the positioning convex rib.

Preferably, the cover body and the lower end cover are sealed by a sealing ring, and the valve rod and the lower end cover are sealed by a B-type or double-O-type sealing ring.

The beneficial effects obtained by the invention are as follows: the valve is sleeved in the working cavity of the cover body, the liquid inlet on the cover body and the valve are arranged, the liquid inlet on the cover body is normally communicated with the liquid flow cavity through the liquid inlet circulation port on the valve, the valve drives the valve to rotate in the working cavity through the valve rod, when the liquid outlet is overlapped with the corresponding liquid outlet circulation port, the liquid flow cavity is communicated with the liquid outlet circulation port, and when the liquid outlet is completely staggered with the corresponding liquid outlet circulation port, the corresponding liquid outlet circulation port is closed.

The water valve is compact in structure and small in size, can quickly switch the flow port of the three-way valve through valve control, the switching time is not more than 10S, and stepless corner regulation and control can be realized, so that high-temperature cooling medium can quickly enter a radiator or a heat exchanger, and quick cooling is realized. Therefore, the battery can work in the optimal working temperature range of 20-30 ℃ and the motor can work in the most appropriate working environment temperature of 30-60 ℃, the service lives of the battery and the motor are prolonged, and the endurance mileage of the battery is increased. In addition, this product can popularize and apply warm braw control, realizes quick warm braw, also can popularize and apply gearbox oil cooling system, realizes gearbox oil and cools off fast.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1 with the valve removed;

FIG. 3 is a schematic structural view of the cover;

FIG. 4 is a schematic structural view of the valve;

FIG. 5 is a schematic view of the gasket construction;

FIG. 6 is a cross-sectional view of FIG. 5;

FIG. 7 is a small cycle state diagram (low temperature cycle);

FIG. 8 is a schematic view of the first liquid outlet and the first liquid outlet in a small circulation state;

FIG. 9 is a schematic view of the second liquid outlet and the second liquid outlet in a small circulation state;

FIG. 10 is a diagram of an intermediate cycle state (thermocycling);

FIG. 11 is a schematic view of the first liquid outlet and the first liquid outlet in an intermediate circulation state;

FIG. 12 is a schematic view of the second liquid outlet and the second liquid outlet in an intermediate circulation state;

FIG. 13 is a large cycle state diagram (high temperature cycle);

FIG. 14 is a schematic view of the first liquid outlet and the first liquid outlet in a large circulation state;

FIG. 15 is a schematic view of the second liquid outlet and the second liquid outlet in a large circulation state;

reference numerals: 1. a cover body 10, a working cavity; 11. a liquid inlet; a liquid outlet (12, a first liquid outlet; 13, a second liquid outlet); 14. a positioning groove;

2. a valve; 20. a fluid flow chamber; 21. a liquid inlet flow port; an effluent passage (22, a first effluent passage; 23, a second effluent passage); 24. a valve stem;

3. a gasket; 31. a gasket opening; a gasket flow port (32, a first gasket flow port; 33, a second gasket flow port); 34. positioning the convex ribs; 35. an outer rubber layer; 36. a polytetrafluoroethylene inner layer;

4. an actuator portion; 5. a lower end cover; 6. a seal ring; 7. a type B (or double O type) sealing ring; 8. the valve inner sealing convex rib; 9. the sealing gasket is externally sealed with convex ribs.

Detailed Description

The invention will be further described with reference to the following drawings and specific embodiments.

As shown in fig. 1-2, the electrically controlled water valve of the present invention includes an actuator part 4 and a valve body part, the valve body part includes a cover body 1, a valve 2 and a sealing member, the housing of the electrical connector and the actuator part adopts an integrated structure, a working chamber 10 is arranged in the cover body 1, a liquid inlet 11 and at least one liquid outlet are arranged on the side wall of the cover body 1, and the liquid inlet 11 and all the liquid outlets are communicated with the working chamber 10.

In this embodiment, the upper end of the working chamber 10 is closed, the lower end is open, the valve 2 is installed from the lower end of the opening of the working chamber 10 of the cover body 1, the upper end of the valve 2 is pushed against the upper end of the closed working chamber 10, and the valve 2 is sleeved in the working chamber 10 in the cover body 1. Referring to fig. 3, the valve 2 of the present invention is a cylindrical structure, the middle of the cylindrical structure is a hollow structure to form a liquid flow cavity 20, the sidewall of the cylindrical valve 2 is provided with liquid inlet and outlet openings 21 and liquid outlet openings that are matched with the liquid outlets in a one-to-one correspondence manner, both the liquid inlet and outlet openings 21 and 20 are communicated with the liquid flow cavity, and when the valve 2 rotates in the working cavity 10 in the cover body 1, the liquid inlet 11 on the cover body 1 is kept in a normally open state with the liquid flow cavity 20 through the liquid inlet and outlet openings 21 on the valve 21. The valve 2 is provided with a valve rod 24, the valve rod 24 is connected with the actuator part 4 in a spline mode, and the actuator part 4 drives the valve 2 to rotate in the working cavity 10 through the valve rod 24, so that the corresponding liquid outlet and the liquid outlet circulation port are communicated or closed.

Referring to fig. 3, in this embodiment, two liquid outlets, namely a first liquid outlet 12 and a second liquid outlet 13, are disposed on the side wall of the cover 1, the first liquid outlet 12 is communicated with the large circulation of the cooling system, and the second liquid outlet 13 is communicated with the small circulation of the cooling system. Of course, a plurality of liquid outlets can be arranged for realizing the cooling requirement of other functional parts of the whole vehicle.

Referring to fig. 4, two liquid outlet ports, namely a first liquid outlet port 22 and a second liquid outlet port 23, are correspondingly provided on the valve 2. When the valve 2 rotates in the working cavity 10 of the cover body 1 and the first liquid outlet 12 is completely overlapped with the first liquid outlet port 22, the second liquid outlet 13 is completely staggered with the second liquid outlet port 23, the first liquid outlet port 22 is communicated with the liquid flow cavity 20, the second liquid outlet port 23 is closed with the liquid flow cavity 20, and the cooling liquid only passes through a large circulation; when the first liquid outlet 12 is partially overlapped with the first liquid outlet circulation port 22, the second liquid outlet 13 is partially overlapped with the second liquid outlet circulation port 23, the first liquid outlet circulation port 22 is partially communicated with the liquid flow cavity 20, the second liquid outlet circulation port 23 is partially communicated with the liquid flow cavity 20, one part of the cooling liquid passes through a large circulation, and the other part of the cooling liquid passes through a small circulation; when the first liquid outlet 12 and the first liquid outlet port 22 are completely staggered, the second liquid outlet 13 and the second liquid outlet port 23 completely coincide, the first liquid outlet port 22 and the liquid flow cavity 20 are closed, the second liquid outlet port 23 and the liquid flow cavity 20 are communicated, and the cooling liquid only passes through a small circulation.

Referring to fig. 5-6, a sealing gasket 3 is arranged between the inner wall of the cover body 1 and the outer wall of the valve 2, in this embodiment, the sealing gasket 3 is unfolded to form a rectangular block-shaped structure, when being installed, the end and the end of the sealing gasket are bent inwards to form a cylinder shape, the sealing gasket is inserted into the working cavity 10 from the opening at the lower end of the working cavity 10 of the cover body 1, the inner wall of the cover body 1 protrudes inwards to form a limiting boss, the end and the end of the sealing gasket 3 are respectively abutted against the step surfaces at two sides of the limiting boss, and the; liquid inlet 11 sets up in the spacing boss department of the cover body 1, and sealed 3 head and the tail both ends of filling up break off not closed, form sealed opening 31, sealed opening 31 of filling up corresponds with liquid inlet 11. The outer wall of the sealing gasket 3 is provided with a positioning convex rib 34 along the axial direction, the inner wall of the cover body 1 is provided with a positioning groove 14, and the positioning groove 14 is matched with the positioning convex rib 34 and used for positioning and mounting the sealing gasket 3.

Be equipped with on sealed 3 of filling up with the sealed circulation port of filling up of liquid outlet one-to-one complex, in this embodiment, be equipped with two sealed circulation ports of filling up on sealed 3 of filling up, be first sealed circulation port 32 and the sealed circulation port 33 of filling up of second respectively, first sealed circulation port 32 of filling up corresponds with first inlet 12, and the sealed circulation port 33 of filling up of second corresponds with second inlet 12.

Be equipped with the clearance (the assembly of the sealed pad of being convenient for and the compression runner as sealing material) between sealed 3 outer walls of filling up and the cover body 1 inner wall, combine shown in fig. 5, all be equipped with a plurality of sealed pad external seal protruding ribs 9 with the cover body 1 inner wall in close contact with along circumference and axial on the sealed 3 outer walls of filling up, be equipped with two sealed pad external seal protruding ribs 9 along circumference (vertical) on the sealed 3 outer walls of filling up in this embodiment, be equipped with four sealed pad external seal protruding ribs 9 along axial (horizontal), the sealed pad external seal protruding rib 9 that locates circumference and axial in the sealed pad circulation that corresponds intersects, form convex external seal ring muscle, prevent that the coolant liquid from flowing into in the clearance between sealed 3 outer walls of filling up and the cover body 1.

Be equipped with the clearance (be convenient for the assembly of valve and the compression runner as sealing material) between 3 inner walls of sealed pad and the valve 1 outer wall, combine shown in fig. 4, all be equipped with on the 2 outer walls of valve along circumference and axial with sealed 3 inner walls in close contact with's of sealed pad a plurality of valve internal seal protruding muscle 8, be equipped with two valve internal seal protruding muscle 8 along circumference (vertically) on the 2 outer walls of valve in this embodiment, be equipped with four valve internal seal protruding muscle 8 along axial (horizontal), it intersects with axial valve internal seal protruding muscle 8 to go out liquid flow mouth department circumference and axial at the correspondence, form convex internal seal ring muscle, wherein two sets up both ends about liquid inlet flow mouth 21 along axially arranged valve internal seal protruding muscle 8, form sealedly to liquid inlet flow mouth 21 department. Through above seal structure, guarantee that the coolant liquid does not flow into in the clearance between sealed 3 inner walls of filling up and the valve 1 outer wall.

In order to further guarantee the sealing effect, the setting positions of the sealing gasket outer sealing convex rib 9 and the valve inner sealing convex rib 8 are just corresponding, the width of the sealing gasket outer sealing convex rib 9 is larger than that of the valve inner sealing convex rib 8, and when sealing is formed, the valve inner sealing convex rib 8 can further compress the sealing gasket outer sealing convex rib 9.

In this embodiment, sealed 3 that fills up includes the outer 35 of rubber (EPDM material) relative with the cover body 1 inner wall and the polytetrafluoroethylene inlayer 36 relative with the 2 outer walls of valve, the thickness of the outer 35 of rubber is greater than polytetrafluoroethylene inlayer 36, polytetrafluoroethylene inlayer 36 glues with the outer 35 of rubber through vulcanization process and is stuck together, utilize the glossy characteristic in polytetrafluoroethylene surface, let polytetrafluoroethylene inlayer 36 and valve 2 contact, can reduce the motion friction when valve 2 rotary motion, realize effective sealing simultaneously. The lower end of the sealing gasket 3 is chamfered, so that the valve 2 is convenient to be installed.

During assembly, the sealing gasket 3 is assembled in the working cavity 10 of the cover body 1, and then the valve 2 is assembled in the working cavity 10 formed by the sealing gasket 3, and the first liquid outlet 12 and the liquid flow cavity 20 are in a conducting state by guiding through a guide oblique angle arranged at the lower end opening part of the sealing gasket 3. The outer side wall of the valve 2 is provided with a plurality of valve inner sealing ribs 8, and the valve inner sealing ribs 8 contact with the polytetrafluoroethylene inner layer 36 on the sealing gasket 3 to realize inner side sealing. Referring to fig. 2, after the sealing gasket 3 and the valve 2 are both installed in the working cavity 10 of the cover body 1, the lower end cover 5 is installed, the lower end cover 5 is fixedly connected with the cover body 1 through bolts, the lower end cover 5 and the cover body 1 are sealed through a sealing ring 6, a valve rod 24 of the valve 2 penetrates through the lower end cover 5 to be connected with the valve 4 through a spline, and a shaft seal is realized between the valve rod 24 and the lower end cover 5 through a B-type or double-O-type sealing ring 7.

The working principle of the invention is as follows:

as shown in fig. 7 to 9, in the small circulation state, which is a low temperature state of the cooling system, the cooling medium needs to be heated by the small circulation inside. At the moment, the ECU of the whole vehicle does not output a signal instruction to the valve, the valve does not work, and the electric control water valve does not work correspondingly. The low-temperature cooling medium flows in from the liquid inlet 11 of the cover body 1 and then flows out from the second liquid outlet 13, the first liquid outlet 12 is in a closed state at the moment, and the cooling medium is heated by a small circulation at the moment. In this state, the second outlet port 23 of the valve 2 completely faces the second outlet port 13, the second outlet port 13 is completely opened, the first outlet port 22 is completely staggered from the first outlet port 12, and the first outlet port 12 is completely closed.

As shown in fig. 10-12, the intermediate cycle state is a state in which the cooling system is in a proper temperature state, the temperature is raised to some extent, but the target high temperature is not reached, the cooling medium needs to be properly cooled at this time, but the cooling amplitude does not need to be too fast, and the states are in a large and small cycle. At the moment, the whole ECU outputs a signal instruction to the valve, the valve motor drives the transmission mechanism, the spline groove at the output end of the transmission mechanism rotates by a certain angle, the angle can be 20-100 degrees, the first liquid outlet 12 starts to be opened when the spline groove rotates by 20 degrees, and the second liquid outlet 13 starts to be closed when the spline groove rotates by 105 degrees. When the rotation angle is between 20 ° and 100 °, the media flow of the second liquid outlet 13 and the media flow of the first liquid outlet 12 both flow out, and as the rotation angle increases, the media flow of the second liquid outlet 13 gradually decreases, and the media flow of the first liquid outlet 12 gradually increases, and when the rotation angle reaches 120 °, the flow of the first liquid outlet 12 reaches the maximum. As shown in fig. 11 and 12, when the valve 2 is rotated by 60 °, the second liquid outlet port 23 of the valve 2 is partially offset from the second liquid outlet port 13, and the second liquid outlet port 13 is in a half-open state; the first outlet port 22 is offset from the first outlet port 12, and the first outlet port 12 is in a semi-open state.

As shown in fig. 13-15, the large circulation state is a high temperature state of the cooling system, and the cooling medium needs to go through the external large circulation for rapid cooling. At this time, the entire vehicle ECU outputs a signal instruction to the valve, the valve motor drives the transmission mechanism, the spline groove at the output end of the transmission mechanism rotates by 120 degrees, the valve 2 of the electric control water valve also rotates by 120 degrees correspondingly, and therefore the first liquid outlet 12 is completely opened, and the second liquid outlet 13 is completely closed. The high-temperature cooling medium flows in from the liquid inlet 11 of the cover body 1 and then flows out from the first liquid outlet 12, the second liquid outlet 13 is in a closed state at the moment, and the cooling medium is cooled by a large circulation at the moment. In this state, the second liquid outlet port 23 of the valve 2 is completely deviated from the second liquid outlet 13, and the second liquid outlet 13 is completely closed; the first outlet port 22 is completely opposite to the first outlet port 12, and the first outlet port 12 is fully opened.

The foregoing shows and describes the general principles and principal structural features of the present invention. The present invention is not limited to the above examples, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.