Integrated variable channel electric control thermolator

Abstract

The invention relates to an integrated variable channel electric control thermolator which comprises an upper cover body, a lower cover body and a ball valve, the upper cover body is integrated with a large circulation channel, and the lower cover body is integrated with an engine cooling liquid inlet channel, a small circulation channel, a hydraulic retarder water inlet and outlet channel and an internal flow channel for switching the hydraulic retarder channel. When the retarder works and needs to dissipate heat, the communicating port is closed, and cooling liquid forcibly flows through the retarder to dissipate heat; when the retarder does not work, the internal channel structure is changed, the communicating opening is opened, the cooling liquid does not pass through the retarder, direct flow large and small circulation is achieved, and saving and consumption reduction are achieved. The number of parts is reduced, high integration is achieved, control is easy and convenient, meanwhile, opening and closing of the ball valve 4 are electrically controlled, rapidness and sensitivity are achieved, and control is more accurate. The ball valve is high in integration, one ball valve controls multiple channels such as large circulation, small circulation, a retarder inlet and a retarder outlet, the number of parts is small, and control is easy and convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile thermal management, and in particular to an integrated variable-channel electric-controlled thermostat. Background Art

[0002] During the operation of the engine, the temperature of the gas in the cylinder reaches 1800-2000℃ due to the combustion of the combustible mixture. If the cylinder block, cylinder head, piston and other parts that are in direct contact with the high-temperature gas are not cooled in time or are not cooled enough, the parts will wear out faster due to poor lubrication, and the engine power will decrease due to the reduction of cylinder air filling and abnormal combustion; but if the cooling is excessive, the oil will become thinner and affect lubrication, and the thermal efficiency will decrease due to excessive heat loss. Therefore, the engine needs to work in a more suitable temperature range.

[0003] At the same time, for passenger and cargo vehicles that often travel in mountainous areas and are heavy, in order to reduce or release the load on the service brakes when driving down long slopes for a long time and ensure the safety of vehicle driving, it is necessary to install auxiliary braking devices such as retarders. The most commonly used is the hydraulic retarder. When the hydraulic retarder is working, the friction and impact between the rotor and the stator will generate a lot of heat. At this time, the coolant of the engine thermal management system needs to flow to the hydraulic retarder for rapid heat dissipation. When the hydraulic retarder is not working, it is necessary to change the internal channel of the electronically controlled thermostat so that the coolant does not flow through the retarder, thereby reducing energy loss.

[0004] In order to meet the above requirements, a wax thermostat with a large flow rate is usually installed at the water inlet or outlet of the engine thermal management system, so that the coolant flows through the cylinder block, cylinder head and retarder device at the same time to meet the total heat dissipation requirements when the fuel is burned and the hydraulic retarder is working. However, its disadvantage is that the coolant flow channel is too long, and it needs to flow through the retarder when the retarder is not working, which results in a large pressure drop and a slow temperature rise during cold start, which will lead to more energy loss. To solve this problem, in recent years, some manufacturers will add a wax thermostat to the outlet of the coolant flow channel of the hydraulic retarder, or add a pneumatic valve and other measures. However, these measures have the defects of complex structure, difficult installation and maintenance, and high cost. Moreover, the wax thermostat reacts slowly, and it takes a certain time from closing to opening, usually 90 to 120 seconds, which is not conducive to solving the large amount of heat generated quickly when the retarder is working. To deal with this problem, the opening temperature of the wax thermostat is generally set lower. It also leads to low engine operating temperature and increased energy consumption. Summary of the invention

[0005] In order to solve the above problems, the present invention provides an integrated variable channel electric control thermostat, which realizes the switching control of multiple channels such as large circulation, small circulation, retarder inlet and outlet, etc. controlled by one ball valve.

[0006] The technical solution adopted by the present invention is: an integrated variable channel electric control thermostat, characterized in that it includes an upper cover body, a lower cover body and a ball valve, the upper cover body is connected with the lower cover body, a radiator interface connected to the radiator is provided on the upper cover body, and a radiator communication channel connected to the radiator interface is provided in the upper cover body.

[0007] The lower cover body is provided with a retarder flow channel inlet interface, a retarder reflux interface and a small circulation flow channel interface. The interior of the lower cover body is divided into a lower cover upper cavity and a lower cover lower cavity by a lower middle partition. The lower cover upper cavity and the lower cover lower cavity are connected through a connecting port. The lower cover upper cavity is connected with the upper cover body. The lower cover upper cavity is connected with the small circulation flow channel interface through the small circulation connecting port. The lower cover upper cavity is connected with the retarder coolant channel through the retarder reflux interface. The lower cover lower cavity is connected with the engine coolant channel. The lower cover lower cavity is connected with the retarder flow channel inlet interface and the retarder coolant channel through the retarder flow channel inlet interface.

[0008] The ball valve is arranged between the upper cavity of the lower cover and the cavity enclosed by the upper cover body. The ball valve is provided with a third ball valve connecting port, a second ball valve connecting port and a first ball valve connecting port which are connected to the internal cavity of the ball valve. The third ball valve connecting port corresponds to the radiator connecting channel, the second ball valve connecting port corresponds to the small circulation connecting port, and the first ball valve connecting port corresponds to the connecting port.

[0009] Preferably, the ball valve rotates, the third ball valve connecting port on the ball valve is not connected to the radiator connecting channel, the first ball valve connecting port is connected to the connecting port, the second ball valve connecting port is connected to the small circulation connecting port, the engine coolant enters the ball valve from the lower cavity of the lower cover through the connecting port and the first ball valve connecting port, then flows out through the second ball valve connecting port on the ball valve, and enters the small circulation channel through the small circulation connecting port.

[0010] Preferably, the ball valve rotates, the third ball valve connecting port on the ball valve is connected to the radiator connecting channel, the first ball valve connecting port is connected to the connecting port, the second ball valve connecting port is not connected to the small circulation connecting port, and the engine coolant enters the ball valve from the lower cavity of the lower cover through the connecting port and the first ball valve connecting port, then flows out through the third ball valve connecting port on the ball valve, enters the radiator through the radiator connecting channel and the radiator interface, and performs a large circulation.

[0011] Preferably, when the retarder is working and the ball valve rotates, the first ball valve connecting port and the connecting port are not connected, the second ball valve connecting port and the small circulation connecting port are not connected, and the third ball valve connecting port on the ball valve is connected to the radiator connecting channel. The engine coolant enters the retarder from the lower cavity of the lower cover through the retarder flow channel inlet interface, and after heat exchange in the retarder, flows into the ball valve through the retarder reflux interface, flows out through the third ball valve connecting port on the ball valve, and enters the radiator through the radiator connecting channel and the radiator interface to perform a large circulation.

[0012] Preferably, the interior of the upper cover body is divided into an upper inner cavity and a lower inner cavity by an upper middle partition, the upper inner cavity and the lower inner cavity are connected through a first radiator connecting port and a second radiator connecting port, and a radiator connecting channel connected to the radiator interface is provided in the upper inner cavity of the upper cover.

[0013] Preferably, the ball valve comprises a first ball valve and a second ball valve arranged in series, the inner cavities of the first ball valve and the second ball valve are connected to each other, the first ball valve is provided with a third ball valve connecting port and a second ball valve connecting port connected to the inner cavity of the ball valve, and the second ball valve is provided with a third ball valve connecting port and a first ball valve connecting port connected to the inner cavity of the ball valve.

[0014] Preferably, the third ball valve communication port on the first ball valve corresponds to the first radiator communication port, and the third ball valve communication port on the second ball valve corresponds to the second radiator communication port.

[0015] Preferably, the ball valve is connected to the actuator via a rotating shaft, and the actuator drives the ball valve to rotate via the rotating shaft.

[0016] Preferably, the ball valve is provided with a corner limit block, and the lower cover body is provided with a limit step that cooperates with the corner limit block.

[0017] Preferably, a shaft seal is arranged in the inner hole at one end of the lower cover body, the inner lip of the shaft seal cooperates with the outer diameter of the rotating shaft, and the outer rubber of the shaft seal cooperates with the inner hole of the lower cover body to achieve internal and external sealing.

[0018] Preferably, at least one set of ball valve sealing parts is arranged on the outer circle of the ball valve, one set is used to seal the small circulation connecting port, one set is used to seal the connecting port between the upper cavity of the lower cover and the lower cavity of the lower cover, and the other two sets are used to seal the first radiator connecting port and the second radiator connecting port between the upper inner cavity of the upper cover and the lower inner cavity of the upper cover.

[0019] The beneficial effects achieved by the present invention are as follows: the upper cover body integrates the large circulation channel, the lower cover body integrates the engine coolant inlet channel, the small circulation channel and the hydraulic retarder water inlet and outlet channels, as well as the internal flow channel of the switching liquid retarder channel. When the retarder needs to dissipate heat during operation, the connecting port is closed, and the coolant is forced to flow through the retarder for heat dissipation; when the retarder is not working, the internal channel structure is changed, the connecting port is opened, and the coolant does not pass through the retarder, but directly flows into the large and small circulations, thereby achieving savings and consumption reduction. The present invention has a reduced number of parts, is highly integrated, and is easy to control. At the same time, the opening and closing of the ball valve 4 adopts an electric control method, which is fast and sensitive, and the control is more precise. The present invention is highly integrated, and one ball valve controls multiple channels such as the large circulation, small circulation, retarder inlet and outlet, with a small number of parts and easy control; the internal channel can be automatically switched according to the working conditions; the electric control structure is adopted, which has a fast and sensitive response, can increase the engine operating temperature, and achieve savings and consumption reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 for Figure 1 Exploded diagram of

[0022] Figure 3 It is a schematic diagram of the lower cover structure;

[0023] Figure 4 is a cross-sectional view of the lower cover;

[0024] Figure 5 Schematic diagram of the upper cover structure;

[0025] Figure 6 It is a schematic diagram of the ball valve structure of the present invention;

[0026] Figure 7 It is a schematic diagram of the small cycle operation;

[0027] Figure 8 This is a schematic diagram of the large cycle when the retarder is not working;

[0028] Figure 9-10 This is a schematic diagram of the retarder working;

[0029] In the figure: 1. actuator; 2. upper cover; 2a. lower inner cavity of upper cover; 2b. upper inner cavity of upper cover; 21. radiator interface; 22. first radiator connecting port; 23. second radiator connecting port; 3. lower cover; 3a. lower inner cavity of lower cover; 3b. upper inner cavity of lower cover; 31. engine coolant flow channel interface; 32. retarder reflux interface; 33. retarder flow channel inlet interface; 34. small circulation flow channel interface; 35. connecting port; 36. small circulation connecting port; 37. shaft seal mounting hole; 38. limiting step; 4. ball valve; 41. first connecting port of ball valve; 42. second connecting port of ball valve; 43. third connecting port of ball valve; 44. fourth connecting port of ball valve; 45. corner limit block; 5. rotating shaft; 6. shaft seal; 7. ball valve sealing assembly; 8. end face sealing ring. DETAILED DESCRIPTION

[0030] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] like Figure 1-10 As shown, an integrated variable channel electric-controlled thermostat of the present invention comprises an upper cover body 2, a lower cover body 3 and a ball valve 4, and the upper cover body 2 is cooperatively connected with the lower cover body 3.

[0032] Combination Figure 5 As shown, the upper cover body 2 integrates a large circulation channel, the upper cover body 2 is provided with a radiator interface 21 connected to the radiator, and a radiator communication channel connected to the radiator interface 21 is provided inside the upper cover body 2; the interior of the upper cover body 2 is divided into an upper cover upper cavity 2b and an upper cover lower cavity 2a by an upper middle partition, and the upper cover upper cavity 2b and the upper cover lower cavity 2a are connected through a first radiator communication port 22 and a second radiator communication port 23.

[0033] Combination Figure 3-4 As shown, the lower cover 3 integrates the engine coolant inlet channel, the small circulation channel and the hydraulic retarder water inlet and outlet channels, as well as the internal flow channel of the switching liquid retarder channel. The lower cover 3 is provided with a retarder flow channel inlet interface 33, a retarder reflux interface 32 and a small circulation flow channel interface 34. The interior of the lower cover 3 is divided into a lower cover upper cavity 3b and a lower cover lower cavity 3a by a lower middle partition. The lower cover upper cavity 3b and the lower cover lower cavity 3a are connected through a connecting port 35. The lower cover upper cavity 3b is connected to the upper cover 2. The lower cover upper cavity 3b is connected to the small circulation flow channel interface 34 through a small circulation connecting port 36. The lower cover upper cavity 3b is connected to the retarder coolant channel through the retarder reflux interface 32; the lower cover lower cavity 3a is connected to the engine coolant channel, and the lower cover lower cavity 3a is connected to the retarder coolant channel through the retarder flow channel inlet interface 33.

[0034] Combination Figure 6 As shown, the ball valve 4 is arranged between the upper cavity 3b of the lower cover and the cavity enclosed by the upper cover body 2. The interior of the ball valve 4 is a cavity structure. The ball valve 4 is provided with a first ball valve connecting port 41, a second ball valve connecting port 42 and a third ball valve connecting port 43 which are connected to the internal cavity of the ball valve 4. The third ball valve connecting port 43 corresponds to the radiator connecting channel, the second ball valve connecting port 42 corresponds to the small circulation connecting port 36, and the first ball valve connecting port 41 corresponds to the connecting port 35.

[0035] When the retarder needs to dissipate heat during operation, the actuator 1 drives the ball valve 4 to rotate, closes the connecting port 35, and the coolant is forced to flow through the retarder for heat dissipation. When the retarder is not working, the actuator 1 drives the ball valve 4 to rotate, changes the internal channel structure, opens the connecting port 35, and the coolant does not pass through the retarder, but directly flows through the large and small circulations, thereby achieving energy saving and consumption reduction. The present invention has a reduced number of parts, is highly integrated, and is easy to control. At the same time, the opening and closing of the ball valve 4 adopts an electric control method, which is fast and sensitive, and the control is more precise.

[0036] In this embodiment, the ball valve 4 includes a first ball valve and a second ball valve arranged in series, the inner cavities of the first ball valve and the second ball valve are connected to each other, the first ball valve is provided with a third ball valve connecting port 43 and a second ball valve connecting port 42 connected to the inner cavity of the ball valve, and the second ball valve is provided with a fourth ball valve connecting port 44 and the first ball valve connecting port 41 connected to the inner cavity of the ball valve; the first ball valve connecting port 41 corresponds to the connecting port 35, the second ball valve connecting port 42 corresponds to the small circulation connecting port 36, the third ball valve connecting port 43 corresponds to the first radiator connecting port 22, and the fourth ball valve connecting port 44 corresponds to the second radiator connecting port 23.

[0037] The actuator 1 receives the ECU signal and controls the motor inside the actuator 1 to rotate forward and reverse, thereby driving the rotating shaft 5 to rotate synchronously, so that the ball valve 4 also rotates synchronously, automatically changing the flow channel inside the cover.

[0038] Combination Figure 7 As shown, when the engine is cold started, the actuator 1 controls the ball valve 4 to rotate counterclockwise until the end face corner limit block 45 of the ball valve 4 contacts the limit step 38 on one side of the lower cover body 3. At this time, the first radiator connecting port 22 and the second radiator connecting port 23 of the upper cover body 2 are in a closed state (the third ball valve connecting port 43 is not connected to the first radiator connecting port 22, and the fourth ball valve connecting port 44 is not connected to the second radiator connecting port 23), that is, the large circulation is closed; the first ball valve connecting port 41 is connected to the connecting port 35, and the second ball valve connecting port 42 is connected to the small circulation connecting port 36. The engine coolant enters the ball valve 4 from the lower cavity 3a of the lower cover through the connecting port 35 and the first ball valve connecting port 41, and then flows out through the second ball valve connecting port 42 on the ball valve 4, and enters the small circulation channel through the small circulation connecting port 36 and the small circulation flow channel interface 34, thereby realizing the small circulation; thereby the engine is quickly heated to the ideal working temperature range.

[0039] Combination Figure 8 As shown, when the engine coolant temperature reaches a certain temperature range and the retarder is not working, the actuator 1 drives the ball valve 4 to rotate clockwise, and the first radiator connecting port 22 and the second radiator connecting port 23 flowing to the large circulation are gradually opened (the third ball valve connecting port 43 is gradually connected to the first radiator connecting port 22, and the fourth ball valve connecting port 44 is gradually connected to the second radiator connecting port 23), and the small circulation connecting port 36 flowing to the small circulation is closed (the second ball valve connecting port 42 is gradually closed to the small circulation connecting port 36), and the engine coolant enters the ball valve 4 from the lower cavity 3a of the lower cover through the connecting port 35 and the first ball valve connecting port 41, and then flows out through the third ball valve connecting port 43 and the fourth ball valve connecting port 44 on the ball valve 4, and enters the radiator through the first radiator connecting port 22, the second radiator connecting port 23 and the radiator interface 21, so that the large circulation is opened, and the coolant can be cooled through the radiator.

[0040] Combination Figure 9-10 As shown, when the retarder starts to work, a large amount of heat will be generated quickly, and the actuator 1 will quickly drive the ball valve 4 to rotate clockwise to the maximum angle. The first ball valve communication port 41 is not connected to the communication port 35, the second ball valve communication port 42 is not connected to the small circulation communication port 36, and the third ball valve communication port 43 and the fourth ball valve communication port 44 on the ball valve 4 are correspondingly connected to the first radiator communication port 22 and the second radiator communication port 23. The engine coolant enters the retarder from the lower cavity 3a of the lower cover through the retarder flow channel inlet interface 33, and after heat exchange in the retarder, it flows into the ball valve 4 through the retarder reflux interface 32, flows out through the third ball valve communication port 43 on the ball valve 4, and enters the radiator through the radiator communication channel and the radiator interface 21, and performs a large circulation, so that the high-temperature liquid passing through the retarder is quickly cooled through the radiator.

[0041] In this embodiment, the ball valve 4 is connected to the actuator 1 through the rotating shaft 5. The two ends of the rotating shaft 5 are supported on the inner holes at the two ends of the lower cover 3, and the clearance fit allows the ball valve 4 to rotate around the axis. The inner hole of the ball valve 4 is fixed to the outer circumference of the rotating shaft 5 and is connected with a spline, so the ball valve 4 can only rotate with the rotating shaft 5. The ball valve 4 is provided with an angle limit block 45, and the lower cover 3 is provided with a limit step 38 that matches the angle limit block 45.

[0042] The upper cover body 2 and the lower cover body 3 of the present invention are provided with at least five interfaces, namely: an engine coolant flow channel interface 31, a radiator interface 21, a small circulation flow channel interface 34, a retarder reflux interface 32 and a retarder flow channel inlet interface 33. The engine coolant flow channel interface 31 is connected to the engine coolant flow channel outlet, the radiator interface 21 is connected to the engine large circulation passage (i.e., the radiator), the small circulation flow channel interface 34 is connected to the engine small circulation passage (flowing back to the water pump), the retarder flow channel inlet interface 33 is connected to the retarder water inlet, and the retarder reflux interface 32 is connected to the retarder water outlet. Other interfaces can also be added according to demand.

[0043] Holes for supporting the rotating shaft 5 are arranged at both ends of the lower cover 3, one end of which is a through hole through which the rotating shaft can extend out of the cover; the other end is a blind hole. A limiting step 38 for controlling the rotation angle of the ball valve 4 and a shaft seal mounting hole 37 for assembling the shaft seal 6 are arranged on the inner side of one end of the lower cover 3.

[0044] A shaft seal 6 is arranged in the inner hole at one end of the lower cover body 3, the inner lip of the shaft seal 6 matches with the outer diameter of the rotating shaft 5, and the outer rubber of the shaft seal 6 matches with the inner hole of the lower cover body 3 to achieve internal and external sealing.

[0045] At least four sets of ball valve sealing parts 7 are arranged on the outer circle of the ball valve 4, one set is used to seal the small circulation connecting port 36, one set is used to seal the connecting port 35 between the upper cavity 3b of the lower cover and the lower cavity 3a of the lower cover, and the other two sets are used to seal the first radiator connecting port 22 and the second radiator connecting port 23 between the upper inner cavity 2b of the upper cover and the lower inner cavity 2a of the upper cover.

[0046] It should be noted that the description of the above technical solutions is exemplary, and this specification can be embodied in different forms and should not be interpreted as being limited to the technical solutions set forth herein. On the contrary, providing these descriptions will make the disclosure of the present invention thorough and complete, and will fully convey the scope disclosed in this specification to those skilled in the art. In addition, the technical solutions of the present invention are limited only by the scope of the claims.

[0047] Finally, it should be pointed out that the above embodiments are only representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments, and there are many variations. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention should be considered to belong to the protection scope of the present invention.

Claims

1. An integrated variable channel electric thermostat, characterized in that: The upper cover body comprises an upper cover body, a lower cover body and a ball valve, wherein the upper cover body is cooperatively connected with the lower cover body, a radiator interface communicating with the radiator is provided on the upper cover body, a radiator communication channel communicating with the radiator interface is provided in the upper cover body, a retarder flow channel inlet interface, a retarder reflux interface and a small circulation flow channel interface are provided on the lower cover body, and the interior of the lower cover body is divided into a lower cover upper cavity and a lower cover lower cavity by a lower middle partition, the lower cover upper cavity and the lower cover lower cavity are communicated through a communication port, the lower cover upper cavity is communicated with the upper cover body, the lower cover upper cavity is communicated with the small circulation flow channel interface through the small circulation communication port, and the lower cover upper cavity is communicated with the retarder coolant channel through the retarder reflux interface; the lower cover lower cavity is communicated with the engine coolant channel, and the lower cover lower cavity is communicated with the retarder flow channel inlet interface; The ball valve is arranged between the upper cavity of the lower cover and the cavity enclosed by the upper cover body. The ball valve is provided with a third ball valve connecting port, a second ball valve connecting port and a first ball valve connecting port which are connected to the internal cavity of the ball valve. The third ball valve connecting port corresponds to the radiator connecting channel, the second ball valve connecting port corresponds to the small circulation connecting port, and the first ball valve connecting port corresponds to the connecting port.

2. The integrated variable channel electric control thermostat according to claim 1, characterized in that: When the ball valve rotates, the third ball valve connecting port on the ball valve is not connected to the radiator connecting channel, the first ball valve connecting port is connected to the connecting port, the second ball valve connecting port is connected to the small circulation connecting port, and the engine coolant enters the ball valve from the lower cavity of the lower cover through the connecting port and the first ball valve connecting port, then flows out through the second ball valve connecting port on the ball valve, and enters the small circulation channel through the small circulation connecting port.

3. The integrated variable channel electric control thermostat according to claim 1, characterized in that: The ball valve rotates, the third ball valve connecting port on the ball valve is connected to the radiator connecting channel, the first ball valve connecting port is connected to the connecting port, the second ball valve connecting port is not connected to the small circulation connecting port, and the engine coolant enters the ball valve from the lower cavity of the lower cover through the connecting port and the first ball valve connecting port, then flows out through the third ball valve connecting port on the ball valve, enters the radiator through the radiator connecting channel and the radiator interface, and performs a large circulation.

4. The integrated variable channel electric control thermostat according to claim 1, characterized in that: When the retarder works, the ball valve rotates, the first ball valve connecting port and the connecting port are not connected, the second ball valve connecting port and the small circulation connecting port are not connected, the third ball valve connecting port on the ball valve is connected to the radiator connecting channel, and the engine coolant enters the retarder from the lower cavity of the lower cover through the retarder flow channel inlet interface, after heat exchange in the retarder, flows into the ball valve through the retarder reflux interface, flows out through the third ball valve connecting port on the ball valve, enters the radiator through the radiator connecting channel and the radiator interface, and performs a large circulation.

5. The integrated variable channel electric thermostat according to claim 1, characterized in that: The interior of the upper cover body is divided into an upper inner cavity and a lower inner cavity by an upper middle partition. The upper inner cavity and the lower inner cavity are connected through a first radiator connecting port and a second radiator connecting port. A radiator connecting channel connected to the radiator interface is provided in the upper inner cavity of the upper cover.

6. The integrated variable channel electric thermostat according to claim 5, characterized in that: The ball valve comprises a first ball valve and a second ball valve arranged in series, the inner cavities of the first ball valve and the second ball valve are connected to each other, the first ball valve is provided with a third ball valve connecting port and a second ball valve connecting port connected to the inner cavity of the ball valve, and the second ball valve is provided with a third ball valve connecting port and a first ball valve connecting port connected to the inner cavity of the ball valve.

7. The integrated variable channel electric thermostat according to claim 5, characterized in that: The third ball valve communication port on the first ball valve corresponds to the first radiator communication port, and the third ball valve communication port on the second ball valve corresponds to the second radiator communication port.

8. The integrated variable channel electric control thermostat according to claim 1, characterized in that: The ball valve is connected to the actuator via a rotating shaft, and the actuator drives the ball valve to rotate via the rotating shaft.

9. The integrated variable channel electric controlled thermostat according to claim 1, characterized in that: The ball valve is provided with an angle limit block, and the lower cover body is provided with a limit step matched with the angle limit block.

10. The integrated variable channel electric control thermostat according to claim 1, characterized in that: A shaft seal is arranged in the inner hole at one end of the lower cover body, the inner lip of the shaft seal cooperates with the outer diameter of the rotating shaft, and the outer rubber of the shaft seal cooperates with the inner hole of the lower cover body to realize internal and external sealing; at least one set of ball valve sealing parts is arranged on the outer circle of the ball valve, one set is used to seal the small circulation connecting port, one set is used to seal the connecting port between the upper cavity of the lower cover and the lower cavity of the lower cover, and the other two sets are used to seal the first radiator connecting port and the second radiator connecting port between the upper inner cavity of the upper cover and the lower inner cavity of the upper cover.

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