Automobile electronic integrated water pump structure

Abstract

The utility model discloses an automobile electronic integrated water pump structure, which belongs to the technical field of automobile electronic integrated water pumps, and comprises a shell structure, a rotor structure, a winding stator assembly, a heat dissipation bottom plate and a circuit board, the shell structure comprises a water pump shell, a shell waterproof sleeve assembly, a rear cover and a metal lining; the water pump shell and the machine shell waterproof sleeve assembly are pre-fixed through the metal lining; as an integrally injection-molded part, the shell waterproof sleeve assembly changes the structure of a traditional shell and a waterproof sleeve, and simplifies the manufacturing process of a product; the circuit board is cooled through the heat dissipation bottom plate, the water pump is cooled through the water cooling structure, the heat dissipation problem of the water pump is effectively solved, and the power density of the water pump is improved. The rear cover and the machine shell waterproof sleeve assembly are welded, the size of the water pump in the radial direction can be reduced, and client side assembly is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive electronic integrated water pumps, in particular to an automotive electronic integrated water pump structure. Background Art

[0002] At present, automotive thermal management technology is developing towards integration. As an important component in automotive thermal management, the small size of the water pump is a very important requirement. With the compact design of automobile engines and space limitations, the size of automobile parts also needs to be smaller. Therefore, as a key component in the automotive thermal management system, the water pump must have a small size to meet the design requirements of modern automobiles. A small-sized water pump can be better installed in the engine compartment of the vehicle without taking up too much space, improving the compactness of the entire automotive system.

[0003] The electronic integrated water pump is a plug-in installation structure that needs to have the characteristics of small size and high power density. The electronic integrated water pump needs to have high power density. Power density refers to the amount of power that can be transmitted per unit volume. For automotive water pumps, high power density means that a larger flow rate and higher pressure can be provided under limited volume to ensure the normal operation of the cooling system. A water pump with high power density can better cope with the cooling needs of the car engine under high temperature and high load conditions, and improve the cooling performance and working efficiency of the car.

[0004] The electronic integrated water pump also needs to have the characteristics of high reliability and low noise. As part of the automotive thermal management system, the reliability of the water pump plays a vital role in the stability and safety of the entire system. A highly reliable water pump can effectively prevent leakage and failure, ensuring the normal operation of the cooling system. At the same time, a low-noise water pump can provide a quieter and more comfortable driving experience, reducing the noise interference to the driver and passengers. Utility Model Content

[0005] The purpose of the utility model is to provide an automotive electronic integrated water pump structure to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: the electronic integrated water pump structure includes: a shell structure, a rotor structure, a winding stator assembly, a heat dissipation base plate, and a circuit board. The rotor structure is installed at the axial position of the shell structure, and the winding stator assembly is installed inside the shell structure. The winding stator assembly is arranged around the rotor structure. The heat dissipation base plate is installed inside the shell structure, the heat dissipation base plate is located at the bottom end of the rotor structure, and the circuit board is installed on the side of the heat dissipation base plate away from the rotor structure.

[0007] The shell structure includes: a water pump shell, a casing watertight jacket assembly, a back cover, and a metal bushing. One side of the casing watertight jacket assembly is connected to the water pump shell through a metal bushing, and the other side of the casing watertight jacket assembly is connected to the back cover. The casing watertight jacket assembly and the heat dissipation base plate form a closed cabin. The winding stator assembly is installed in the closed cabin. The top of the water pump shell is provided with a water inlet, and the side wall of the water pump shell is provided with a water outlet. The metal bushing pre-fixes the water pump shell and the casing watertight jacket assembly. The closed cabin isolates the external liquid from intrusion while providing a good working space for the winding stator assembly.

[0008] The rotor structure includes a rotor assembly, a rotating shaft, and an impeller. A groove is provided at the center of the heat dissipation base plate. One end of the rotating shaft passes through the rotor assembly and is rotatably connected to the groove. An impeller is installed on the other end of the rotating shaft. The end of the impeller without fan blades is half-embedded in the top of the rotor assembly, and the end of the impeller with fan blades extends to the water inlet of the water pump casing.

[0009] During operation, the circuit board controls the current to pass through the wound stator assembly, and the wound stator assembly generates a rotating magnetic field with a fixed direction and frequency; the rotating magnetic field of the wound stator assembly interacts with the magnetic field of the rotor assembly, and the wound stator assembly applies a torque to the rotor assembly, causing the rotor assembly to start driving the shaft to rotate inside the shell structure. At this time, the impeller installed at one end of the shaft drives the movement of the water flow, thereby sucking the coolant from the water inlet of the water pump housing and then discharging it through the water outlet on the side wall of the water pump housing.

[0010] The circuit board will control the current of the winding stator assembly according to the needs of the cooling system and the feedback signal from the sensor, thereby adjusting the speed and power of the rotor assembly. By adjusting the magnitude and direction of the current of the winding stator assembly, the strength and direction of the rotating magnetic field can be controlled, and then the movement of the rotor assembly can be controlled. In this way, the circuit board can adjust the working state of the electronic integrated water pump according to the real-time cooling needs of the engine to achieve the best cooling effect.

[0011] The connection between the water pump housing and the casing watertight sleeve assembly is provided with a stepped groove, and the connection between the casing watertight sleeve assembly and the water pump housing is provided with a stepped protrusion, the groove and the protrusion match each other, the rear cover and the heat dissipation base plate form a closed cabin, and the circuit board is located in the closed cabin. The closed cabin provides a dry working environment for the internal circuit board. The rear cover is welded to the casing watertight sleeve assembly, which reduces the radial size of the water pump.

[0012] The casing watertight sleeve assembly is an integrated injection molding structure, and the connections of the various components of the electronic integrated water pump structure are all pre-fixed. The integrated injection molding structure eliminates the steps of splicing the traditional casing and watertight sleeve, simplifying the manufacturing process of the structure.

[0013] The heat dissipation base is used to dissipate heat from the circuit board, which is used to control the current of the winding stator assembly. When the circuit board is working, a lot of heat is generated, which is discharged through the heat dissipation base to ensure the stable operation of the circuit board. The circuit board can receive and send information such as instructions, data and fault codes to achieve coordination and interaction with other vehicle systems.

[0014] Compared with the prior art, the beneficial effects achieved by the utility model are as follows: the electronic integrated water pump structure uses a metal bushing to pre-fix the water pump housing and the housing watertight sleeve assembly; the housing watertight sleeve assembly is an integrally-molded part, which changes the traditional structure of the housing plus the watertight sleeve and simplifies the manufacturing process of the product. The heat dissipation of the circuit board is carried out through the heat dissipation base plate, and the water pump is cooled by the water cooling structure, which effectively solves the heat dissipation problem of the water pump and improves the power density of the water pump. The rear cover and the housing watertight sleeve assembly are welded to reduce the radial dimension of the water pump, which is convenient for client assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is an overall cross-sectional view of the electronic integrated water pump structure of the utility model;

[0017] Figure 2 It is a cross-sectional view of the shell structure of the utility model;

[0018] Figure 3 This is a front view of the rotor structure of the utility model;

[0019] Figure 4 It is a vertical view of the electronic integrated water pump structure of the utility model;

[0020] In the figure: 1. Shell structure; 2. Rotor structure; 3. Winding stator assembly; 4. Heat dissipation base plate; 5. Circuit board; 11. Water pump shell; 12. Casing water-proof assembly; 13. Back cover; 14. Metal bushing; 21. Rotor assembly; 22. Rotating shaft; 23. Impeller. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 The utility model provides a technical solution: a shell structure 1, a rotor structure 2, a winding stator assembly 3, a heat dissipation base plate 4, and a circuit board 5. The rotor structure 2 is installed at the axial position of the shell structure 1, the winding stator assembly 3 is installed inside the shell structure 1, the winding stator assembly 3 is arranged around the rotor structure 2, the heat dissipation base plate 4 is installed inside the shell structure 1, the heat dissipation base plate 4 is located at the bottom end of the rotor structure 2, and the circuit board 5 is installed on the side of the heat dissipation base plate 4 away from the rotor structure 2.

[0023] The housing structure 1 includes: a water pump housing 11, a housing watertight jacket assembly 12, a rear cover 13, and a metal bushing 14. One side of the housing watertight jacket assembly 12 is connected to the water pump housing 11 through the metal bushing 14, and the other side of the housing watertight jacket assembly 12 is connected to the rear cover 13. The housing watertight jacket assembly 12 and the heat dissipation base plate 4 form a closed cabin, and the winding stator assembly 3 is installed in the closed cabin. The top of the water pump housing 11 is provided with a water inlet, and the side wall of the water pump housing 11 is provided with a water outlet. The metal bushing 14 pre-fixes the water pump housing 11 and the housing watertight jacket assembly 12. The closed cabin isolates the external liquid from intrusion while providing a good working space for the winding stator assembly 3.

[0024] The rotor structure 2 includes a rotor assembly 21, a rotating shaft 22, and an impeller 23. A groove is provided at the center of the heat dissipation base plate 4. One end of the rotating shaft 22 passes through the rotor assembly 21 and is rotatably connected to the groove. The impeller 23 is installed at the other end of the rotating shaft 22. The end of the impeller 23 without the fan blades is half-embedded in the top of the rotor assembly 21, and the end of the impeller 23 with the fan blades extends to the water inlet of the water pump housing 11.

[0025] During operation, the circuit board 5 controls the current to pass through the wound stator assembly 3, and the wound stator assembly 3 generates a rotating magnetic field with a fixed direction and frequency; the rotating magnetic field of the wound stator assembly 3 interacts with the magnetic field of the rotor assembly 21, and the wound stator assembly 3 applies a torque to the rotor assembly 21, so that the rotor assembly 21 starts to drive the rotating shaft 22 to rotate inside the shell structure 1. At this time, the impeller 23 installed at one end of the rotating shaft 22 drives the movement of the water flow, thereby sucking the coolant from the water inlet of the water pump housing 11, and then discharging it through the water outlet on the side wall of the water pump housing 11.

[0026] The circuit board 5 controls the current of the winding stator assembly 3 according to the requirements of the cooling system and the feedback signal of the sensor, thereby adjusting the speed and power of the rotor assembly 21. By adjusting the magnitude and direction of the current of the winding stator assembly 3, the strength and direction of the rotating magnetic field can be controlled, thereby controlling the movement of the rotor assembly 21. In this way, the circuit board 5 can adjust the working state of the electronic integrated water pump according to the real-time cooling requirements of the engine to achieve the best cooling effect.

[0027] The connection between the water pump housing 11 and the housing water-blocking sleeve assembly 12 is provided with a stepped groove, and the connection between the housing water-blocking sleeve assembly 12 and the water pump housing 11 is provided with a stepped protrusion, the groove and the protrusion match each other, the rear cover 13 and the heat dissipation base plate 4 form a closed cabin, and the circuit board 5 is located in the closed cabin. The closed cabin provides a dry working environment for the internal circuit board 5. The rear cover 13 is welded to the housing water-blocking sleeve assembly 12, which reduces the radial size of the water pump.

[0028] The casing watertight sleeve assembly 12 is an integrated injection molding structure, and the connection of each component of the electronic integrated water pump structure adopts a pre-fixed structure. The integrated injection molding structure eliminates the steps of splicing the traditional casing and watertight sleeve, simplifying the manufacturing process of the structure.

[0029] The heat dissipation base plate 4 is used to dissipate heat from the circuit board 5, and the circuit board 5 is used to control the current of the winding stator assembly 3. When the circuit board 5 is working, a large amount of heat is generated, and this heat is discharged through the heat dissipation base plate 4 to ensure the stable operation of the circuit board 5; the circuit board 5 can receive and send information such as instructions, data and fault codes to achieve coordination and interaction with other vehicle systems.

[0030] The working principle of the utility model is as follows: the circuit board 5 will adjust the magnitude and direction of the current of the winding stator assembly 3 according to the needs of the cooling system and the feedback signal of the sensor, and can control the strength and direction of the rotating magnetic field, thereby controlling the movement of the rotor assembly 21. When working, the circuit board 5 controls the current to pass through the winding stator assembly 3, and the winding stator assembly 3 generates a rotating magnetic field with a fixed direction and frequency; the rotating magnetic field of the winding stator assembly 3 interacts with the magnetic field of the rotor assembly 21, and the winding stator assembly 3 applies a torque to the rotor assembly 21, so that the rotor assembly 21 starts to drive the rotating shaft 22 to rotate inside the shell structure 1. At this time, the impeller 23 installed at one end of the rotating shaft 22 drives the movement of the water flow, thereby sucking the coolant from the water inlet of the water pump housing 11, and then discharging it through the water outlet on the side wall of the water pump housing 11. At the same time, the circuit board 5 can adjust the working state of the electronic integrated water pump according to the real-time cooling needs of the engine to achieve the best cooling effect.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An automotive electronic integrated water pump structure, characterized in that: The electronic integrated water pump structure comprises: a housing structure (1), a rotor structure (2), a winding stator assembly (3), a heat dissipation base plate (4), and a circuit board (5); the housing structure (1) has the rotor structure (2) mounted at the axial center position; the housing structure (1) has the winding stator assembly (3) mounted inside; the winding stator assembly (3) is arranged around the rotor structure (2); the heat dissipation base plate (4) is mounted inside the housing structure (1); the heat dissipation base plate (4) is located at the bottom end of the rotor structure (2); and the circuit board (5) is mounted on a side of the heat dissipation base plate (4) away from the rotor structure (2); A water pump housing (11), a housing watertight jacket assembly (12), a rear cover (13), and a metal bushing (14); one side of the housing watertight jacket assembly (12) is connected to the water pump housing (11) via the metal bushing (14); the other side of the housing watertight jacket assembly (12) is connected to the rear cover (13); the housing watertight jacket assembly (12) and the heat dissipation base plate (4) form a sealed cabin; the winding stator assembly (3) is installed in the sealed cabin; a water inlet is provided on the top of the water pump housing (11); and a water outlet is provided on the side wall of the water pump housing (11); The casing water-isolating sleeve assembly (12) is an integrated injection-molded structure.

2. The automotive electronic integrated water pump structure according to claim 1, characterized in that: The rotor structure (2) comprises a rotor assembly (21), a rotating shaft (22), and an impeller (23); a groove is provided at the center of the heat dissipation base plate (4); one end of the rotating shaft (22) passes through the rotor assembly (21) and is rotatably connected to the groove; the other end of the rotating shaft (22) is mounted with an impeller (23); an end of the impeller (23) not mounted with fan blades is half-embedded in the top of the rotor assembly (21); and an end of the impeller (23) mounted with fan blades extends into the water inlet of the water pump housing (11).

3. The automotive electronic integrated water pump structure according to claim 1, characterized in that: A stepped groove is provided at the connection between the water pump housing (11) and the casing watertight jacket assembly (12), and a stepped protrusion is provided at the connection between the casing watertight jacket assembly (12) and the water pump housing (11), the groove and the protrusion match each other, the rear cover (13) and the heat dissipation base plate (4) form a closed cabin, and the circuit board (5) is located in the closed cabin.

4. The automotive electronic integrated water pump structure according to claim 1, characterized in that: The heat dissipation base plate (4) is used to dissipate heat from the circuit board (5); the circuit board (5) is used to control the current magnitude of the winding stator assembly (3).

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