Electronic water pump device with installation and operation balance self-adaption function

Abstract

The utility model relates to an electronic water pump device with installation and operation balance self-adaption, which comprises a pump head, a split embedded pump body, a rear cover, an I-shaped clamping ring, a salient point sealing ring, a stator, a rotor and a rotor eccentric balance self-adaption control system arranged in the split embedded pump body, the rotor eccentricity balance self-adaptive control system is composed of a pressure change sensor, a controller, a flow control device, a discharge control mechanism and the like, a complete closed-loop feedback is formed from rotor eccentricity detection, recognition, control, execution and final feedback, eccentricity correction can be completed no matter whether the rotor eccentricity faces any side, and the service life of the rotor is prolonged. The inner pump body is connected with the pump head in an embedded mode through an I-shaped clamping ring, and the bottom of the outer pump body is connected with the rear cover through a clamping column. According to the utility model, the problems of poor operation stability, high noise, poor heat dissipation and insufficient reliability of the electronic water pump caused by rotor eccentricity are thoroughly solved, and meanwhile, the operation stability, the assembly reliability, the heat dissipation efficiency and the NVH comfort of the electronic water pump are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic water pumps, in particular to an electronic water pump device with installation and operation balance self-adaptation. Background Art

[0002] Whether the electronic water pump is used as a key cooling device in the automotive thermal management system or as a core cooling device in the energy storage system, with the rapid iteration and update of the thermal management system and the energy storage system, the installation adaptability, heat dissipation, operation control stability, cooling performance and NVH performance of the electronic water pump are also facing increasingly severe challenges.

[0003] First, as the application environment of the cooling system becomes more and more complex and changeable, the performance and stability requirements of the electronic water pump are getting higher and higher. As the power, performance requirements and size of the traditional electronic water pump change, the heat dissipation, stability and NVH performance problems of the electronic water pump become more and more prominent. From the published patents CN220566300U, CN106151054A, CN114352534A and CN219220566U, although the direct connection of the impeller chamber, the motor chamber and the pump body chamber can achieve a certain heat dissipation purpose, this diversion method seriously reduces the performance and efficiency of the water pump, thereby affecting the cooling and heat dissipation of the entire cooling system, and from the perspective of fluid mechanics, this diversion method will also seriously cause shaft eccentricity, thereby affecting the operating stability of the entire electronic water pump.

[0004] Secondly, in the face of various thermal management systems and energy storage systems that are rapidly iterating and upgrading, the installation position, angle and environment of the electronic water pump are no longer single, but have become more complex and changeable. The existing electronic water pumps either use bolts to connect the pump head, pump body, end cover, back cover and other parts, such as the disclosed patents CN117231518A, CN116538100A and CN107514390B, which use bolts to connect the electronic water pump housing parts, or use laser or ultrasonic welding to connect the electronic water pump housing parts, such as the disclosed patents CN211116646U, CN114483598A, etc., which use welding to connect the electronic water pump housing parts. Connect the pump head and the pump body. Although bolt connection or welding can meet the connection and installation methods of a single cooling system, there is a risk of bolt falling off, thread slipping and failure after the electronic water pump has been running for a long time. On the other hand, the corresponding adapter screw hole must be designed for bolt installation. The overall size of the pump body structure will become larger, and the hole position after the design is finalized is difficult to adjust the installation angle of the pump head, and it cannot be installed to adapt to different cooling systems. The installation adaptability is extremely poor. When faced with complex and changeable thermal management and energy storage cooling systems, the installation position, installation angle and materials of the various components of the electronic water pump are different. At this time, the electronic water pump can no longer meet the requirements by bolt installation and welding.

[0005] Finally, on the one hand, the centroids of the components of the internal rotor of the electronic water pump are inconsistent, which will cause the rotor to run out of center after wear. On the other hand, due to the processing and manufacturing or assembly matching size chain, the bearing and the shaft match the inner cavity wall, and the roundness of the inner wall inevitably has certain design and manufacturing tolerances. After the water pump has been running for a period of time, wear will inevitably occur between the shaft and the bearing, which will lead to poor operating stability of the entire water pump, increased noise, and reduced NVH performance. From the perspective of existing technology, there is currently no solution to this problem. Therefore, it is urgent to design an innovative electronic water pump structure that can not only solve the problem of installation adaptability, but also solve the problem of self-heating and ensure that the system cooling is met, and can also solve the problem of electronic water pump operation stability and NVH performance. Utility Model Content

[0006] In view of the above problems, the utility model provides an electronic water pump device which solves the problem of poor operating stability of the electronic water pump due to rotor eccentricity, reduces noise, improves NVH performance, and is easy to assemble and has installation and operation balance self-adaptation.

[0007] The technical solution adopted by the utility model to solve the above technical problems is: an electronic water pump device with installation and operation balance self-adaptation, including a pump head, a split embedded pump body, a rear cover, a rotor eccentric balance self-adaptive control system arranged in the split embedded pump body, and a lower bearing and an upper bearing arranged in the central position of the split embedded pump body, the split embedded pump body includes an inner pump body and an outer pump body nested from the inside to the outside, the bottom of the upper bearing and the top of the lower bearing are connected to each other and fixed by the rotor, the rotor is sleeved in the stator, the impeller is interference-fitted on the top of the rotor to realize the integration of the rotor and the impeller, and the impeller is interference-fitted with the upper bearing, and the inner pump body and the pump head are connected by a cross section. The I-shaped clamping ring is embedded and connected, the bottom of the outer pump body is embedded and connected with the rear cover, the protruding positions at the upper and lower ends of the clamping ring are respectively inserted into the grooves of the pump head and the inner pump body, and the grooves on both sides of the clamping ring are respectively engaged with the protruding positions of the inner pump body and the pump head, and the two sides of the I-shaped clamping ring are symmetrical in shape, the end of the lower bearing away from the upper bearing is interference fit in the rotating shaft cavity inside the outer pump body, and the end of the upper bearing away from the lower bearing is interference fit in the inner pump body, and at the same time, the clamping ring is provided with an opening with an angle of 10° to 15°, and two assembly positioning grooves are provided at the matching position of the pump head and the clamping ring, and the rotor eccentric balance adaptive control system is used to control the eccentricity correction and operation of the electronic water pump rotor.

[0008] Preferably, the rotor eccentric balance adaptive control system includes a pressure sensor, a controller, a flow control device, and an emission control mechanism. The pressure sensor is disposed on the inner wall of the rotating shaft cavity and on the side of the lower bearing. The flow control device is disposed at the lower gap of the stator, and the flow control device includes a housing and a flow sensor and an actuator disposed in the housing. At the same time, the flow sensor is disposed above the actuator, and the controller is disposed at the bottom end of the outer pump body.

[0009] Preferably, at least six flow control devices are provided and are circumferentially distributed uniformly along the inner circumference of the rotating shaft cavity of the outer pump body. At the same time, the pressure sensor and the emission control mechanism correspond to the number and position of the flow control devices.

[0010] Preferably, the flow control device includes an eccentric side flow control device, an opposite side flow control device, and at least four other side flow control devices. The pressure sensor includes an eccentric side pressure sensor, an opposite side pressure sensor, and at least four other side pressure sensors.

[0011] Preferably, several guide posts are circumferentially distributed uniformly along the circumference of the outer pump body inner wall. At the same time, several cylindrical ribbed heat dissipation posts are circumferentially distributed uniformly along the circumference of the outer pump body outer wall. Several clamping posts corresponding to the number of guide posts for connecting the pump body and the rear cover are circumferentially distributed uniformly on the installation surface of the outer pump body end cover and the rear cover. The inner pump body is provided with several assembly grooves matching the guide posts.

[0012] Preferably, the clamping post is mushroom-shaped and has a slit in the middle. The size of the slit of the clamping portion is between one-fifth and one-fourth of the diameter of the mating hole on the split embedded pump body.

[0013] Preferably, the snap ring is made of spring steel, and the outer diameter dimension of the snap ring is larger than the inner diameter dimension of the pump head groove.

[0014] Preferably, the connection between the pump head and the inner pump body is sealed by a bump seal ring (7). The material of the bump seal ring is rubber, and the cross-sectional shape of the bump seal ring is square. Bumps are respectively provided at the central positions of the upper end and the inner end face. The inner bump is engaged with the inner pump body, and the upper bump is engaged with the pump head.

[0015] Preferably, a vibration damping pad is provided between the upper bearing and the rotor.

[0016] Preferably, a sealing groove is provided on the end face of the outer pump body, and the inner pump body and the outer pump body are fixed by injecting glue into the sealing groove.

[0017] Compared with the prior art, the present utility model has the following beneficial effects:

[0018] 1. The self - adaptive control system for rotor eccentricity balance of the present utility model includes a pressure - variable sensor, a controller, a flow control device, and an emission control mechanism. From the detection, identification, control, execution, to the final feedback of rotor eccentricity, a complete closed - loop feedback is formed. No matter which side the rotor eccentricity is towards, the eccentricity correction can be completed, solving the problems of poor running stability, large noise, and low NVH performance caused by rotor eccentricity in the electronic water pump. At the same time, to reduce the running stability problems of the electronic water pump, the inner pump body, waterproof chamber, and bearing are designed into an integrally plastic - coated structure, which can maximize the avoidance of dimensional deviations caused by processing and assembly, thereby improving the stability of the electronic water pump, enhancing the running stability, NVH comfort, and reliability of the entire water pump.

[0019] 2. The pump body of the present utility model is an embedded split - type pump body structure, which is convenient for assembly, has a compact structure, occupies a small space size. At the same time, a large number of cylindrical rib - type heat - dissipation columns are designed on the outer surface, with small fluid resistance and better heat - dissipation performance. At the same time, a bolt - free connection structure between the pump body and the rear cover is designed, which is convenient for assembly, has uniform stress, high structural strength, and good stability, solving the problems of poor self - structure adaptability, heat - dissipation performance, stability, and NVH performance of the electronic water pump after the improvement of power, performance, and change of size.

[0020] 3. The structure of the electronic water pump of the present utility model is simple, convenient for assembly, and has high reliability. Moreover, the designed I - shaped retaining ring has a symmetrical shape on both sides, making its stress non - eccentric, with strong load - bearing capacity, simple forming process, low price, low cost, easy to assemble and disassemble for maintenance, and high adaptability. Moreover, the pump head can be installed in a 360 - degree non - dead - angle adaptation manner. No matter what complex and changeable installation environment and installation angle it faces, it can meet the requirements. Further, a convex - point sealing ring with a square cross - section is designed, which can prevent the coolant in the pump head from flowing out from any angle and position, thereby ensuring the sealing reliability, running stability, and reliability of the water pump. It solves the deficiencies of poor installation adaptability, inflexible structural position variability, large installation space size, and poor adaptability of installation angle of the electronic water pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the three - dimensional structure schematic diagram of the present utility model;

[0022] Figure 2 is Figure 1 the sectional view along A - A in

[0023] Figure 3 is the three - dimensional structure schematic diagram of the split - type embedded pump body in the present utility model;

[0024] Figure 4 is Figure 3 the sectional view along B - B in

[0025] Figure 5 yes Figure 3 Cross-sectional view along CC;

[0026] Figure 6 It is a schematic diagram of the structure of the Chinese and foreign pump bodies of the utility model;

[0027] Figure 7 This is a schematic diagram of the inner pump body structure in the utility model;

[0028] Figure 8 It is a partial schematic diagram of the flow control device in the utility model;

[0029] Figure 9 yes Figure 8 Sectional view along DD;

[0030] Figure 10 This is a schematic diagram of the installation of the clamp ring of the utility model;

[0031] Figure 11 This is a schematic diagram of the structure of the clamping ring in the utility model;

[0032] Figure 12 It is a schematic diagram of the flow of the rotor eccentric balance adaptive control system in the utility model. DETAILED DESCRIPTION

[0033] The following will be combined Figure 1-12 The present invention is described in detail. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

[0034] An electronic water pump device with installation and operation balance self-adaptation, comprising a pump head 6, a split embedded pump body, a rear cover 15, a rotor eccentric balance self-adaptive control system arranged in the split embedded pump body, and a lower bearing 1 and an upper bearing 4 arranged at the center of the split embedded pump body, the split embedded pump body comprising an inner pump body 9 and an outer pump body 10 mutually nested from the inside to the outside, the bottom of the upper bearing and the top of the lower bearing are connected to each other and fixed by a rotor 2, the rotor is sleeved in a stator 31, a vibration damping pad 3 is arranged between the upper bearing and the rotor, and an impeller 5 is interference-fitted above the rotor 2 to realize the integration of the rotor and the impeller At the same time, the impeller is interference fit with the upper bearing, the inner pump body and the pump head are connected by an I-shaped clamping ring 8, the bottom of the outer pump body is connected by a back cover, the protruding positions at the upper and lower ends of the clamping ring are respectively inserted into the grooves of the pump head and the inner pump body, and the grooves on both sides of the clamping ring are respectively engaged with the protruding positions of the inner pump body and the pump head, the end of the lower bearing away from the upper bearing is interference fit in the rotating shaft cavity inside the outer pump body, and the end of the upper bearing away from the lower bearing is interference fit in the inner pump body, and the opening with an angle of 10° to 15° is opened on the clamping ring, and two assembly positioning grooves 16 are provided at the matching position of the pump head and the clamping ring.

[0035] The rotor eccentricity balance adaptive control system includes a pressure sensor 11, a controller 14, a flow control device 13 and an emission control mechanism 17. The pressure sensor is arranged on the inner wall of the rotating shaft cavity and on the side of the lower bearing. The flow control device is arranged at the lower gap of the stator. The flow control device includes a housing 18 and a flow sensor 12 and an actuator 19 arranged inside the housing. At the same time, the flow sensor is arranged above the actuator, and the controller is arranged at the bottom end of the outer pump body.

[0036] There are at least six flow control devices, which are evenly distributed circumferentially along the inner circumference of the rotating shaft cavity of the outer pump body. At the same time, the pressure sensor and the emission control mechanism correspond to the quantity and position of the flow control device. Specifically, the flow control device includes an eccentric side flow control device 23, a opposite side flow control device 24 and at least four other side flow control devices 26. The pressure sensor includes an eccentric side pressure sensor 27, a opposite side pressure sensor 28 and at least four other side pressure sensors 29.

[0037] Specifically, in order to reduce or eliminate the rotor eccentricity problem caused by the inconsistent structural mass centers of the components of the rotor, bearing wear and design and assembly dimensional tolerances of the electronic water pump, and to address the deficiencies such as poor self-stability and NVH performance of the electronic water pump, the balance adaptive electronic water pump control device and the closed-loop rotor eccentricity balance adaptive control system designed by the present invention have a control logic diagram as shown in Figure 12As shown, when the pressure sensor detects that the rotor is not eccentric, no adjustment is required. When the pressure sensor detects the eccentric position of the rotor, a command is sent from the controller to the flow sensors on the corresponding sides of the eccentric side flow control device 23 and its opposite side flow control device 24. The flow sensors send signals, and then the opening degree of the emission control mechanism is changed through the actuator, immediately closing the eccentric side flow sensor and simultaneously fully opening the flow sensor on its opposite side, increasing the fluid pressure on the eccentric side and reducing the eccentric pressure on the opposite side. According to Pascal's principle in fluid mechanics, a reverse thrust will be generated at the eccentric position of the rotor due to the change in flow rate, initially correcting the eccentric position of the rotor. However, during the rotation of the rotor, there will be certain errors in the eccentric correction process. Since this rotor eccentric balance adaptive control system is designed as a closed-loop rotor eccentric balance adaptive control system, further, during the initial correction process, the eccentric errors at other positions are fed back to the pressure sensors on the other sides through the flow sensors on the other sides. At this time, these pressure sensors will also send signals to the controller, and the controller sends corresponding commands to adjust the flow rate at the corresponding end of this position, and then corrects the corresponding flow rate according to the commands to achieve the rotor balance state. In this way, the flow control devices are circumferentially evenly distributed in the inner circumference of the rotating shaft cavity of the outer pump body. Through the adaptive rotor eccentric balance adaptive control system, a closed-loop feedback is formed. No matter which side the rotor is eccentric to, the eccentric correction can be completed, thus thoroughly solving the problems of poor stability and poor NVH comfort of the electric water pump.

[0038] Specifically, in order to solve the deficiencies of the electronic water pump, such as poor self-structural adaptability, heat dissipation, stability, and NVH performance after increasing power, performance, and changing dimensions, the present invention designs the pump body into an internally and externally embedded split structure. There are several guide posts 20 evenly distributed along the circumferential direction of the inner wall of the outer pump body. In this application, the number of guide posts is six. The inner pump body is provided with several assembly grooves matching the guide posts, which is convenient for assembly, has a compact structure, and occupies a small space dimension. At the same time, there are several cylindrical ribbed heat dissipation posts 21 evenly distributed along the circumferential direction of the outer wall of the outer pump body. The advantage of this structure compared with the traditional strip-shaped rib structure that can only guide unidirectional wind is that no matter from which arbitrary direction the external heat dissipation wind blows from all around, it can take away heat, has a small fluid resistance, and better heat dissipation performance; on the installation surface of the end cover and the rear cover of the outer pump body, there are several clamping posts 22 corresponding to the number of guide posts for connecting the pump body and the rear cover. Through the clamping structure, the pump body and the rear cover can be connected without bolts. The clamping post is in the shape of a mushroom, with a smaller upper part for guiding and a larger lower part for being clamped into the mating hole of the pump body after assembly. And there is a slit in the middle, and the size of the slit is between one-fifth and one-quarter of the diameter of the mating hole on the split-embedded pump body. In this way, on the basis of meeting the structural strength, it can ensure that both sides of the clamping post will shrink towards the middle during the assembly process, with an appropriate shrinkage gap, which is convenient for assembly. After the assembly is in place, both sides of the clamping post will spring open and be firmly installed in the mating hole of the pump body. The designed 6 clamping post structures are evenly distributed along the circumferential direction of the outer pump body on the installation surface of the end cover and the rear cover, so that the installation force of the water pump is evenly distributed and the stability is good; finally, in order to reduce the operation stability problem of the electronic water pump, a sealing groove 30 is provided on the end face of the outer pump body. The sealing groove realizes the integral plastic coating of the inner pump body, the waterproof chamber, and the bearing through injection molding. In this way, it can avoid the dimensional deviation caused by processing and assembly to the greatest extent, thereby improving the stability of the electronic water pump.

[0039] Specifically as Figure 10 , Figure 11As shown in the figure, first, a snap ring structure with an I-shaped cross-section is designed. The protruding positions at the upper and lower ends of this structure are respectively snapped into the grooves of the pump head and the inner pump body. The two grooves on both sides in the middle also respectively engage with the protruding positions of the inner pump body and the pump head. The three-layer design has high structural strength and a stable connection and matching method. The snap ring structure has a small opening. The size design requirement of the small opening structure is between 10° and 15°. If the angle is too small, it is inconvenient for assembly. If the angle is too large, the force will be small and uneven, which will lead to unreliable assembly and a risk of falling off and failure. Through simulation analysis and test verification, when the angle is between 10° and 15°, the force is uniform and the reliability is high. Further, the two sides of the designed I-shaped snap ring are symmetrically shaped, ensuring that the force is not eccentric, with strong load-bearing capacity, simple forming process, low price, low cost, and compact structure, which can solve the problems of space occupation and inflexibility in the design of the traditional fixed hole positions of the screw holes of the electronic water pump. The material of the snap ring structure is spring steel. Materials such as 70, SUS301, and 65Mn can all meet the requirements. At the same time, the design requirement for the outer diameter size of the snap ring structure is slightly larger than the inner diameter size of the pump head groove, so as to ensure that the snap ring structure has a certain elastic force to hold the pump head, making the connection between the pump head and the pump body reliable. Further, to ensure assembly, two assembly positioning grooves are designed at the mating part of the pump head and the snap ring. During assembly, the snap ring is pressed by a tooling, and the pump head is installed. After the assembly is completed, the tooling is released. Due to its own elasticity, the snap ring will spring open and be clamped between the pump head and the inner pump body. This design structure is simple, easy to assemble, disassemble, and repair, with high adaptability, and the pump head can be installed in a 360-degree non-blind spot manner, meeting the requirements regardless of any complex and changeable installation environment and installation angle. On the other hand, to ensure the sealing performance of the water pump, a square convex point sealing ring with a square cross-section is designed. In the designed square convex point sealing ring 7 structure, two convex point structures are respectively designed at its upper end and inner side. The inner convex point is used to connect to the pump body and engage with the inner pump body, and the upper convex point is used to connect to the pump head and thus engage with the pump head. This design not only facilitates positioning to the corresponding groove through the convex points during installation, with reliable assembly positioning, but also the upper end and inner side convex point structures of the sealing ring can withstand radial and axial forces during the operation of the water pump, preventing the coolant in the pump head from flowing out from any angle and position, thereby ensuring the sealing reliability, operation stability, and reliability of the water pump. The material of the convex point sealing ring is rubber, such as EPDM. At the same time, the design requirement for the convex point position is located in the middle of the end face of the square convex point sealing ring, so that the convex point sealing ring bears the force better.

[0040] The above has introduced in detail the technical solutions provided by the embodiments of the present utility model. Specific examples are used herein to elaborate on the principles and implementation manners of the embodiments of the present utility model. The descriptions of the above embodiments are only applicable to help understand the principles of the embodiments of the present utility model. At the same time, for those of ordinary skill in the art, according to the embodiments of the present utility model, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. An electronic water pump device with balanced adaptability for installation and operation, characterized in that: The invention comprises a pump head (6), a split embedded pump body, a rear cover (15), a rotor eccentric balance adaptive control system arranged in the split embedded pump body, and a lower bearing (1) and an upper bearing (4) arranged at the center of the split embedded pump body. The split embedded pump body comprises an inner pump body (9) and an outer pump body (10) which are mutually nested from the inside to the outside. The bottom of the upper bearing and the top of the lower bearing are connected to each other and fixed by a rotor (2). The rotor is sleeved in a stator (31). An impeller (5) is interference-fitted on the top of the rotor (2) to realize the integration of the rotor and the impeller. At the same time, the impeller and the upper bearing are interference-fitted. The inner pump body and the pump head are connected by a clamping ring (8) with an I-shaped cross section, the bottom of the outer pump body is connected by a clamping ring, the protruding positions at the upper and lower ends of the clamping ring are respectively clamped into the grooves of the pump head and the inner pump body, and the grooves on both sides of the clamping ring are respectively clamped into the protruding positions of the inner pump body and the pump head, the end of the lower bearing away from the upper bearing is interference-fitted in the rotating shaft cavity inside the outer pump body, and the end of the upper bearing away from the lower bearing is interference-fitted in the inner pump body, and the clamping ring is provided with an opening with an angle of 10° to 15°, and two assembly positioning grooves (16) are provided at the matching position of the pump head and the clamping ring.

2. The electronic water pump device with installation and operation balance adaptability according to claim 1, wherein: The rotor eccentric balance adaptive control system comprises a pressure sensor (11), a controller (14), a flow control device (13) and an emission control mechanism (17), wherein the pressure sensor is arranged on the inner wall of the rotating shaft cavity and is located on the side of the lower bearing, the flow control device is arranged in the gap at the bottom of the stator and comprises a housing (18) and a flow sensor (12) and an actuator (19) arranged in the housing, and the flow sensor is arranged above the actuator, and the controller is arranged at the bottom end of the outer pump body.

3. The electronically pumped water device with balanced installation and operation adaptation according to claim 2, characterized in that: There are at least six flow control devices and they are evenly distributed along the circumference of the rotating shaft cavity inside the outer pump body. At the same time, the pressure change sensor and the emission control mechanism correspond to the number and position of the flow control devices.

4. The electronically controlled water pump device with installation and operation balance adaptability according to claim 3, characterized in that: The flow control device comprises an eccentric side flow control device (23), an opposite side flow control device (24) and at least four other side flow control devices (26); the pressure variable sensor comprises an eccentric side pressure variable sensor (27), an opposite side pressure variable sensor (28) and at least four other side pressure variable sensors (29).

5. The electronic water pump device with self - adapting balance in installation and operation according to claim 1, characterized in that: A plurality of guide columns (20) are evenly distributed on the inner wall of the outer pump body along the circumference of the pump body, and a plurality of cylindrical convex rib heat dissipation columns (21) are evenly distributed on the outer wall of the outer pump body along the circumference of the pump body. A plurality of clamping columns (22) for connecting the pump body and the rear cover corresponding to the number of the guide columns are evenly distributed on the mounting surface of the outer pump body end cover and the rear cover along the circumference of the pump body, and the inner pump body is provided with a plurality of assembly grooves (31) matching the guide columns.

6. The electronically controlled water pump device with balanced installation and operation adaptability according to claim 5, characterized in that: The clamping column is mushroom-shaped and has a slit in the middle. The size of the slit in the clamping portion is between one fifth and one quarter of the diameter of the matching hole on the split embedded pump body.

7. The electronic water pump device with balanced installation and operation adaptability according to claim 1, characterized in that: The clamping ring is made of spring steel, and the outer diameter of the clamping ring is larger than the inner diameter of the pump head groove.

8. The electronic water pump device with installation and operation balance adaptability according to claim 1, characterized in that: The connection between the pump head and the inner pump body is sealed by a bump seal ring (7). The material of the bump seal ring is rubber, and the cross-sectional shape of the bump seal ring is square. Bumps are respectively provided at the central positions of the upper end and the inner end face of the bump seal ring. The inner bump is engaged with the inner pump body, and the upper bump is engaged with the pump head.

9. The electronic water pump device with balanced adaptability in installation and operation according to claim 1, characterized in that: A vibration damping pad (3) is provided between the upper bearing and the rotor.

10. The electronic water pump device with installation and operation balance adaptability according to claim 1, characterized in that: A sealing groove (30) is provided on the end face of the outer pump body, and the inner pump body and the outer pump body are fixed by injecting glue into the sealing groove.

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