Water pump and thermal management system integrated structure

Abstract

The invention relates to a water pump and thermal management system integrated structure, and belongs to the technical field of engine cooling. The integrated structure comprises an engine cylinder cover, a cooling water pump arranged on the engine cylinder cover, a water pump cover body covering the cooling water pump in a sealing mode and a radiator, the water pump cover body is provided with a cooling cavity allowing the cooling water pump to be installed, and the cooling cavity is communicated with an inner flow channel of the engine cylinder cover. The water pump cover body is further provided with a leakage water storage cavity, the leakage water storage cavity is communicated with an overflow hole of the cooling water pump, and evaporation holes communicated with the leakage water storage cavity are formed in the water pump cover body. The leaked water storage cavity plays a role in temporarily storing slight leakage generated by the water pump, the probability that cooling liquid leaks to other parts of an engine is reduced, and the service life of the engine is prolonged.

Description

Technical Field

[0001] This application relates to the field of engine cooling technology, and in particular to an integrated structure of a water pump and a thermal management system. Background Technology

[0002] Engines are core components in vehicles and industrial equipment, determining their power, economy, stability, and environmental friendliness. In vehicles, engines provide power for cars, airplanes, and ships; in industrial equipment, engines drive generators, compressors, pumps, and other devices.

[0003] The engine cooling system is a crucial part of a car's powertrain. Its main function is to regulate and control the temperature of the engine during operation, ensuring that all engine components remain at their normal operating temperatures. Existing engine cooling systems include a water pump, radiator, cooling fan, water temperature sensor, and coolant reservoir. The water pump facilitates the flow of coolant between the engine and the radiator.

[0004] Regarding the aforementioned technologies, engines typically have a water pump cover with a sealed water pump. However, it is difficult to achieve a complete seal on the water pump, and slight coolant leakage is normal. However, prolonged coolant leakage can cause corrosion or damage to critical engine components. Summary of the Invention

[0005] To reduce the impact of minor coolant leaks on engine cylinder head components, this application provides an integrated structure for a water pump and a thermal management system.

[0006] The integrated structure of a water pump and a thermal management system provided in this application adopts the following technical solution: An integrated structure for a water pump and thermal management system includes an engine cylinder head, a cooling water pump disposed on the engine cylinder head, a water pump cover that seals the cooling water pump, and a radiator. The water pump cover has a cooling chamber for mounting the cooling water pump, the cooling chamber being connected to a flow channel inside the engine cylinder head. The water pump cover also has a leakage water storage chamber, which is connected to an overflow hole of the cooling water pump. An evaporation hole communicating with the leakage water storage chamber is provided on the water pump cover.

[0007] By adopting the above technical solution, the leakage reservoir can temporarily store minor leaks that occur when the water pump is working, reducing the probability of coolant leaking into other parts of the engine and improving the overall lifespan of the engine. The temperature generated when the engine is working can heat and evaporate the coolant in the leakage reservoir. The evaporated gas can be discharged through the evaporation hole, achieving pressure balance between the leakage reservoir and the outside. At the same time, maintenance personnel can identify the sealing and leakage problems of the cooling system by observing the coolant flowing out of the evaporation hole.

[0008] Optionally, the water pump cover has an inclined connecting hole that connects the cooling water pump and the leakage water storage chamber. One end of the inclined connecting hole is connected to the top of the leakage water storage chamber, and the other end is connected to the overflow hole of the cooling water pump. The height of the cooling water pump is higher than that of the water storage chamber.

[0009] By adopting the above technical solution, the connection method between the leakage water storage chamber and the cooling pump body is specifically disclosed. The two are connected through an inclined connection hole. When the water pump is working, the slight leakage flows out from the overflow hole and then is transported to the top of the leakage water storage chamber along the inclined connection hole. The structure is simple and reduces the impact of leaked coolant on other components of the engine cylinder head.

[0010] Optionally, the water pump cover includes a first cover and a second cover, the first cover and the engine cylinder head are sealed and fixed, the cooling water pump is installed on the first cover, the leakage water storage chamber is disposed on the first cover, the second cover covers the leakage water storage chamber and the cooling water pump, and the evaporation hole is disposed on the second cover.

[0011] By adopting the above technical solution, the water pump cover is composed of a first cover and a second cover, which facilitates the installation of the cooling water pump on the first cover and improves the overall assembly efficiency of the engine. When it is necessary to repair the engine's cooling system, the second cover can be removed to observe the cooling water pump and the leaking water storage chamber.

[0012] Optionally, the second cover is provided with a detection through hole that communicates with the bottom of the leaking water storage chamber, and a detection element is sealed and installed on the second cover at the detection through hole. The detection element and the water pump cover are detachably connected.

[0013] By adopting the above technical solution and setting the test piece, the test personnel can remove the test piece from the test hole during engine factory testing. If there is any leakage of coolant or lubricating oil, it can be detected through the test hole, thus achieving the effect of testing the engine's sealing performance.

[0014] Optionally, the detection component is a bolt, the detection through hole is a threaded hole that mates with the bolt, and the pump cover is provided with a sealing ring at the top of the detection through hole for sealing installation of the bolt.

[0015] By adopting the above technical solution, the fitting method between the test piece and the test through hole is specifically disclosed. The use of bolts and bolt holes makes it convenient for testers to remove the test piece from the test through hole. At the same time, the threaded fitting method can play a certain sealing role, so as to form a double sealing effect with the sealing ring.

[0016] Optionally, the second cover body has a switching port connected to the output end of the radiator and a small circulation channel. The two ends of the small circulation channel are respectively connected to the switching port and the input end of the radiator. The water pump cover body is provided with a thermostat that controls the sealing or opening of the switching port. When the thermostat controls the switching port to be sealed, the small circulation channel is open, and the coolant flows in the engine cylinder head to form a small circulation; when the thermostat controls the switching port to be open, the small circulation channel is closed, and the coolant flows between the engine cylinder head and the radiator to form a large circulation.

[0017] By adopting the above technical solution, the thermostat is designed to create two circulation states between the engine cylinder head and the radiator. When the engine is first started, the engine is at a low temperature. The coolant flows in the engine cylinder head through a small circulation to preheat the engine. When the engine temperature rises, the thermostat is activated, allowing the coolant to flow between the engine and the radiator. The radiator cools down the heated coolant and then delivers it back to the engine to dissipate heat. Integrating the thermostat and cooling water pump into the cooling cover can significantly simplify the structure of the cooling system, reduce the number of parts and connection points, thereby reducing system complexity and failure rate.

[0018] Optionally, the water inlet of the cooling water pump is integrated into the second cover.

[0019] By adopting the above technical solution and integrating the water inlet into the cover, the overall size of the water pump assembly can be reduced, making the water pump structure more compact and improving space utilization. The water inlet is integrated with the cover, reducing additional installation steps and connection points, which helps to reduce installation costs and improve installation efficiency.

[0020] Optionally, the small circulation channel includes a first channel located in the first cover and a second channel located in the second cover. The end of the first channel is provided with an exhaust channel that communicates with the cooling chamber. When the cooling water pump rotates, the coolant is transported from the small circulation channel to the cooling chamber. When coolant is added, air is transported from the cooling chamber to the small circulation channel.

[0021] By adopting the above technical solution, the exhaust channel is set up to directly connect the cooling first cover and the second channel, guiding the fluid to enter the second cover more smoothly and reducing the probability of dead zones when adding coolant.

[0022] Optionally, the engine cylinder head has a third channel communicating with the first channel, and a water temperature sensor is provided at the connection between the third channel and the input end of the radiator. The water temperature sensor is provided with a sealing plug for sealing the third channel.

[0023] By adopting the above technical solution, the water temperature sensor can monitor the temperature of the coolant and control the connection between the engine cylinder head and the radiator input based on the coolant temperature. When the coolant temperature is low, the sealing plug seals the third channel and the radiator input.

[0024] Optionally, the coolant inlet end face, coolant outlet end face, and water pump cover mounting end face on one side of the engine cylinder head are at the same height, and an inclined surface for installing the coolant pump is provided on the other side of the engine cylinder head, so that the adjusting screws of the engine cylinder head are exposed to the outside.

[0025] In summary, this application includes at least one of the following beneficial technical effects: This application, through the setting of a leakage water storage chamber, can temporarily store minor leaks that occur when the water pump is working, reducing the probability of coolant leaking into other parts of the engine. The coolant in the leakage water storage chamber is heated and vaporized, and then discharged from the evaporation hole. At the same time, maintenance personnel can identify the sealing leakage problem of the cooling system by observing the coolant flowing out of the evaporation hole. This application, through the setting of the test piece, allows testers to remove the test piece during engine factory testing to observe engine cooling leakage, thereby improving testing efficiency; This application significantly simplifies the structure of the cooling system by integrating the thermostat and the cooling water pump, reducing the number of parts and connection points, and lowering the complexity and failure rate of the cooling system. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the engine cylinder head after it is assembled into the vehicle body, according to an embodiment of this application.

[0027] Figure 2 This is a schematic diagram of the overall structure of an embodiment of this application.

[0028] Figure 3 This is a schematic diagram of the inclined surface on the engine cylinder head according to an embodiment of this application.

[0029] Figure 4 This is a schematic diagram of the engine cylinder head structure according to an embodiment of this application.

[0030] Figure 5 This is an exploded view of an embodiment of this application.

[0031] Figure 6 This is a schematic diagram of the structure of the front side of the first cover in an embodiment of this application.

[0032] Figure 7 This is a schematic diagram of the structure of the rear side of the second cover in an embodiment of this application.

[0033] Figure 8 This is a cross-sectional schematic diagram of the inclined connecting hole on the first cover of the embodiment of this application.

[0034] Figure 9 This is a cross-sectional schematic diagram of the test piece and the first cover body after they are fitted together according to an embodiment of this application.

[0035] Figure 10 This is a cross-sectional view of the engine cylinder head at the water temperature sensor in an embodiment of this application.

[0036] Figure 11 This is a cross-sectional schematic diagram of the water pump cover according to an embodiment of this application.

[0037] Figure 12 This is an exploded view of the first cover and the second cover in the embodiments of this application.

[0038] Figure 13 This is a schematic diagram of the structure of the second cover body in an embodiment of this application.

[0039] Figure 14 yes Figure 13 A cross-sectional view of the thermostat at point AA with the thermostat in the closed position.

[0040] Figure 15 yes Figure 13 A cross-sectional view of the thermostat at point AA with the thermostat in the open position.

[0041] Explanation of reference numerals in the attached drawings: 1. Engine cylinder head; 11. Locking screw hole; 12. Locking bolt; 13. Third channel; 14. Inclined surface; 15. Adjusting screw; 16. Coolant inlet end face; 17. Coolant outlet end face; 18. Water pump cover mounting end face; 2. Cooling water pump; 3. Water pump cover; 31. First cover; 311. Cooling groove; 312. First through hole; 313. First positioning hole; 314. Leakage water storage chamber; 315. Inclined connecting hole; 316. Exhaust channel; 32. Second cover; 321. Second through hole; 322. First positioning post; 323. Evaporation hole; 324. Detection through hole; 325. Positioning surface; 326. Water inlet; 33. Detection component; 34. Sealing ring; 35. Switching port; 36. Small circulation channel; 361. First channel; 362. Second channel; 4. Radiator; 41. Upper hose; 42. Lower hose; 5. Thermostat; 6. Water temperature sensor; 7. Sealing plug. Detailed Implementation

[0042] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Since the embodiments disclosed in this invention can be arranged in different directions, these terms indicating direction are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0043] The following is in conjunction with the appendix Figure 1-15 This application will be described in further detail.

[0044] This application discloses an integrated structure for a water pump and a thermal management system.

[0045] Reference Figure 1 and Figure 2 The integrated structure of the water pump and thermal management system includes an engine cylinder head 1, a cooling water pump 2, a water pump cover 3 sealed and mounted on the engine cylinder head 1, and a radiator 4. In the figure, the Z direction is the height direction, and the X direction is the front-to-back direction.

[0046] Reference Figure 3 and Figure 4 An inclined surface 14 is provided on one side of the engine cylinder head 1. The inclined surface 14 facilitates the installation of the coolant pump 2, and at the same time exposes the adjusting screw 15 inside the engine cylinder head 1 to the outside, making it convenient for the operator to insert a feeler gauge and rotate the adjusting screw 15.

[0047] The coolant inlet end face 16, coolant outlet end face 17, and water pump cover mounting end face 18 of the engine cylinder head 1 are located at the same height, so that the three end faces can be machined at one time to ensure sealing and reduce manufacturing costs.

[0048] Reference Figure 2 , Figure 5 and Figure 6 The water pump cover 3 includes a first cover 31 fixed to the engine cylinder head 1 and a second cover 32 that seals over the first cover 31. A cooling chamber for mounting the water pump 2 is located between the first cover 31 and the second cover 32. The engine cylinder head 1 has a cooling channel communicating with the cooling chamber. The axes and height of the first cover 31 and the water pump 2 are perpendicular, and the first cover 31 is driven by a camshaft, which in turn is driven by a chain.

[0049] The radiator 4 has an upper hose 41 and a lower hose 42 installed at its input and output ends, respectively. The upper hose 41 is connected to the cooling channel of the engine cylinder head 1, and the end of the lower hose 42 is fixed to the second cover 32 for connecting to the cooling chamber.

[0050] Combination Figure 7 and Figure 8 The front side of the first cover 31 has a cooling groove 311 for coolant flow, and the cooling groove 311 is connected to the coolant inlet of the engine cylinder head 1. The first cover 31 has multiple first through holes 312 penetrating both end faces along the outer edge of the cooling groove 311. The engine cylinder head 1 has locking screw holes 11 corresponding to the first through holes 312, and locking bolts 12 are installed at the locking screw holes 11 on the engine cylinder head 1.

[0051] The second cover 32 covers the front side of the first cover 31. The second cover 32 has a second through hole 321 that corresponds one-to-one with the first through hole 312. The locking bolt 12 passes through the second through hole 321 and the first through hole 312 in sequence, and then cooperates with the locking bolt 12 to fix the water pump cover 3 and the engine cylinder head 1 as a whole. The rear end face of the second cover 32 has a first positioning post 322, and the front end face of the first cover 31 has a first positioning hole 313 that is inserted into the first positioning post 322.

[0052] Reference Figure 7 , Figure 8 and Figure 9 The first cover 31 has a leakage water storage chamber 314 on one side of the cooling tank 311, and the leakage water storage chamber 314 and the cooling tank 311 are sealed apart. The first cover 31 has an inclined connecting hole 315 connecting the cooling water pump 2 and the leakage water storage chamber 314. The inclined connecting hole 315 is inclined in the height direction, with one end connected to the top of the leakage water storage chamber 314 and the other end connected to the overflow hole of the cooling water pump 2. The overflow hole of the cooling water pump 2 is located at a higher height than the leakage water storage chamber 314.

[0053] The second cover 32 has an evaporation hole 323 corresponding to the leakage water storage chamber 314, and the evaporation hole 323 is located in the central area of ​​the leakage water storage chamber 314. A slight leak occurring during normal operation of the cooling water pump 2 is output from the overflow hole, and the coolant flows along the inclined connecting hole 315 to the leakage water storage chamber 314 under gravity. Then, after the engine has been running for a period of time, the temperature of the engine cylinder head 1 rises, causing the coolant in the leakage water storage chamber 314 to evaporate, and the gas is discharged from the evaporation hole 323.

[0054] Reference Figure 9 and Figure 10The second cover 32 also has a detection through hole 324 that connects to the bottom of the leakage water storage chamber 314. The cross-section of the bottom of the leakage water storage chamber 314 is V-shaped with the opening facing upward in the height direction. A detection element 33 is sealed and inserted into the second cover 32 at the detection through hole 324, which abuts against the bottom of the leakage water storage chamber 314. The detection element 33 allows the assembly personnel to detect the leakage of the water pump.

[0055] In this embodiment, the detection element 33 is a bolt, and the detection through hole 324 is a threaded hole, with the detection element 33 and the detection through hole 324 threadedly engaged. In other embodiments, the detection element 33 can be a columnar form such as a pin. The front end face of the second cover 32 has a positioning surface 325 for the bolt head of the detection element 33 to be pressed. The second cover 32 has a sealing hole at the positioning surface 325, which is coaxial with the detection through hole 324. A sealing ring 34 is fixed to the second cover 32 at the sealing hole. The double sealing of the detection element 33 and the detection through hole 324 is achieved through the sealing ring 34 and the threaded engagement.

[0056] The water pump cover 3 has a switching port 35 that connects to the lower hose 42, and a small circulation channel 36 that corresponds to and connects to the switching port 35. The cross-section of the small circulation channel 36 is L-shaped, with one end corresponding to the switching port 35 and the other end directly connected to the end of the upper hose 41. The small circulation channel 36 includes a first channel 361 located on the first cover 31 and a second channel 362 located on the second cover 32. The engine cylinder head 1 also has a third channel 13 that connects to the second channel 362. The first channel 361, the second channel 362, and the third channel 13 are combined to form a Z-shaped channel.

[0057] The second cover 32 has a thermostat 5 sealed and installed at the switching port 35. The structure of the thermostat 5 is consistent with the prior art. The axis of the thermostat 5 is coaxially aligned with one end of the small circulation channel 36.

[0058] The water inlet 326 of the cooling water pump 2 is integrated on the second cover 32, and the water inlet 326 is connected to the chamber where the thermostat 5 is located.

[0059] Reference Figure 11 and Figure 12 The engine cylinder head 1 has a water temperature sensor 6 and a sealing plug 7 at the end of the small circulation channel 36 near the upper hose 41. The water temperature sensor 6 controls the sealing plug 7 and controls the connection between the upper hose 41 and the engine cylinder head 1 through the sealing plug 7.

[0060] Reference Figures 13 to 15When the engine is first started, the thermostat 5 keeps the switching port 35 sealed, meaning the lower hose 42 is sealed, and the sealing plug 7 seals the upper hose 41. At this time, the radiator 4 and the engine cylinder head 1 are not connected. The coolant circulates within the cylinder head, and the cooling flow direction is as follows: when the water pump 2 rotates, the coolant is transported from the cooling chamber to the cooling channel, then from the cooling channel to the small circulation channel 36, and then from the small circulation channel 36 into the impeller of the water pump 2, thus preheating the engine. After the engine has been running for a period of time, the thermostat 5 and the water temperature sensor 6 detect the temperature rise, activate the thermostat 5 and the sealing plug 7, and open the switching port 35 and the upper hose 41 respectively. At this time, the radiator 4 and the cylinder head are connected. The thermostat 5 moves along the axis of the switching port 35, so that the gap between the thermostat 5 and the switching port 35 gradually increases. At this time, the small circulation channel 36 is closed. The flow direction of the coolant is as follows: the coolant pump 2 rotates, and the coolant is transported from the bottom of the cooling chamber to the cooling channel, and then from the cooling channel to the upper hose 41. After being cooled by the radiator 4, the coolant is transported from the lower hose 42 to the switching port 35, and then re-enters the impeller of the coolant pump 2 to achieve engine cooling.

[0061] Reference Figure 12 To reduce the probability of dead zones during coolant addition, the first cover 31 is provided with an exhaust channel 316 at the connection between the second channel 362 and the first channel 361. The exhaust channel 316 connects the small circulation channel 36 and the cooling tank 311. When the cooling water pump 2 is driven, coolant can flow from the small circulation channel 36 to the cooling chamber. When coolant is added, air is exhausted from the exhaust channel 316 into the small circulation channel 36. The implementation principle of the integrated structure of water pump and thermal management system in this application embodiment is as follows: When the cooling water pump 2 is working normally, a slight leak occurs and is output from the overflow hole. Under the action of gravity, the coolant flows along the inclined connection hole 315 to the leakage water storage chamber 314. Then, after the engine has been running for a period of time, the temperature of the engine cylinder head 1 rises, causing the coolant in the leakage water storage chamber 314 to evaporate, and the gas is discharged from the evaporation hole 323. Reference Figures 12 to 14 When the engine is first started, the thermostat 5 seals the switching port 35 and the sealing plug 7 seals the upper rubber hose 41. At this time, the small circulation channel 36 is open. The flow direction of the coolant is as follows: the coolant is discharged from the water pump 2, and the coolant is transported from the bottom of the cooling chamber to the cooling channel, and then from the cooling channel to the small circulation channel 36. From the small circulation channel 36, it enters the impeller of the water pump 2 to achieve engine preheating. After the engine has been running for a period of time, the thermostat 5 and the water temperature sensor 6 detect the temperature rise. The thermostat 5 and the sealing plug 7 are activated, opening the switching port 35 and the upper hose 41 respectively. The thermostat 5 moves along the axis of the switching port 35, gradually increasing the gap between the thermostat 5 and the switching port 35. At this time, the small circulation channel 36 is closed. The flow direction of the coolant is as follows: water is discharged from the water pump 2, and the coolant is transported from the bottom of the cooling chamber to the cooling channel, and then from the cooling channel to the upper hose 41. After being cooled by the radiator 4, the coolant is transported from the lower hose 42 to the switching port 35, and then re-enters the impeller of the water pump 2 to cool the engine.

[0062] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An integrated structure for a water pump and thermal management system, comprising an engine cylinder head (1), a cooling water pump (2) disposed on the engine cylinder head (1), a water pump cover (3) sealingly covering the cooling water pump (2), and a radiator (4), wherein the water pump cover (3) has a cooling chamber for mounting the cooling water pump (2), the cooling chamber being in communication with a cooling flow channel within the engine cylinder head (1), characterized in that, The water pump cover (3) is also provided with a leakage water storage chamber (314), which is connected to the overflow hole of the cooling water pump (2), and the water pump cover (3) is provided with an evaporation hole (323) that connects to the leakage water storage chamber (315).

2. The integrated structure of a water pump and thermal management system according to claim 1, characterized in that, The water pump cover (3) has an inclined connection hole (315) that connects the cooling water pump (2) and the leakage water storage chamber (315). One end of the inclined connection hole (315) is connected to the top of the leakage water storage chamber (315), and the other end is connected to the overflow hole of the cooling water pump (2). The height of the cooling water pump (2) is higher than that of the leakage water storage chamber (314).

3. The integrated structure of a water pump and thermal management system according to claim 1, characterized in that, The water pump cover (3) includes a first cover (31) and a second cover (32). The first cover (31) and the engine cylinder head (1) are sealed and fixed. The cooling water pump (2) is installed on the first cover (31). The leakage water storage chamber (315) is disposed on the first cover (31). The second cover (32) covers the leakage water storage chamber (315) and the cooling water pump (2). The evaporation hole (323) is disposed on the second cover (32).

4. The integrated structure of a water pump and thermal management system according to claim 3, characterized in that, The second cover (32) is provided with a detection through hole (324) that connects to the bottom of the leakage water storage chamber (315). The second cover (32) has a detection element (33) sealed and installed at the detection through hole (324). The detection element (33) and the water pump cover (3) are detachably connected.

5. The integrated structure of a water pump and thermal management system according to claim 4, characterized in that, The detection component (33) is a bolt, the detection through hole (324) is a threaded hole that is threaded to fit the detection component (33), and the water pump cover (3) is provided with a sealing ring (34) on the top of the detection through hole (324) for sealing installation of the bolt.

6. The integrated structure of a water pump and thermal management system according to claim 3, characterized in that, The second cover (32) has a switching port (35) connected to the output end of the radiator (4) and a small circulation channel (36). The two ends of the small circulation channel (36) are connected to the switching port (35) and the input end of the radiator (4) respectively. The pump cover (3) is provided with a thermostat (5) to control the sealing or opening of the switching port (35). When the thermostat (5) controls the switching port (35) to be sealed, the small circulation channel (36) is open, and the coolant flows in the engine cylinder head (1) to form a small circulation; when the thermostat (5) controls the switching port (35) to be open, the small circulation channel (36) is closed, and the coolant flows between the engine cylinder head (1) and the radiator (4) to form a large circulation.

7. The integrated structure of a water pump and thermal management system according to claim 6, characterized in that, The water inlet (326) of the cooling water pump (2) is integrated into the second cover (32), and the water inlet (326) connects the thermostat (5) and the body of the cooling water pump (2).

8. The integrated structure of a water pump and thermal management system according to claim 6, characterized in that, The small circulation channel (36) includes a first channel (361) located on the first cover (31) and a second channel (362) located on the second cover (32). The end of the first channel (361) is provided with an exhaust channel (316) that connects to the cooling chamber. When the cooling water pump (2) rotates, the coolant is transported from the small circulation channel (36) to the cooling chamber. When the coolant is added, air is transported from the cooling chamber to the small circulation channel (36).

9. The integrated structure of a water pump and thermal management system according to claim 8, characterized in that, The engine cylinder head (1) has a third channel (13) that connects to the first channel (361). The engine cylinder head (1) is provided with a water temperature sensor (6) at the connection between the third channel (13) and the input end of the radiator (4). The water temperature sensor (6) is provided with a sealing plug (7) for sealing the third channel (13).

10. The integrated structure of a water pump and thermal management system according to claim 8, characterized in that, The coolant inlet end face (16), coolant outlet end face (17), and water pump cover mounting end face (18) on one side of the engine cylinder head (1) are at the same height. An inclined surface (14) for installing the cooling water pump (2) is provided on the other side of the engine cylinder head (1). The adjusting screw (15) of the engine cylinder head (1) is exposed to the outside through the inclined surface (14).

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