Integrated magnetic drive rotor water pump

Abstract

The utility model discloses an integrated magnetic drive rotor water pump, which belongs to the technical field of water pumps, and comprises a water pump shell, a rotor gasket, a rotor assembly, a stator assembly, a terminal assembly, a rear cover and a circuit board assembly, the water pump shell is fixedly connected with the rotor gasket, the rotor assembly is rotatably connected with the stator assembly, and the terminal assembly is fixedly connected with the rear cover. The stator assembly is in fastening connection with the terminal assembly, the circuit board assembly is in fastening connection with the stator assembly, the rear cover is in fastening connection with the stator assembly, the installation frame is in fastening connection with the stator assembly, the rotor assembly is driven through magnetic force, mechanical friction is reduced, the conversion efficiency is improved, and the water pump can achieve efficient water flow conveying with low energy consumption; the integrated water pump is designed in an integrated mode, so that the whole water pump is more compact in structure and convenient to install and maintain, the stability and durability of the whole structure are enhanced, the failure rate caused by assembly looseness is reduced, and operation of the water pump is controlled through the circuit board assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of water pumps, in particular to an integrated magnetically driven rotor water pump. Background Art

[0002] The automotive water pump is used to circulate coolant to remove heat and maintain the normal operating temperature of the engine. The automotive electronic water pump drives the rotor through magnetic force, avoiding leakage and friction loss in traditional mechanical drive methods, improving efficiency and reliability. In addition, its compact integrated design helps to reduce installation space and meet the automotive industry's dual needs for high performance and miniaturization.

[0003] However, existing automotive electronic water pump motors mostly use brushless DC motors, in which the rotor assembly is usually composed of a rotor core, a magnetic steel, and an injection molded body, wherein the rotor core and the magnetic steel are embedded structures.

[0004] Regarding the related technologies mentioned above, although the existing electronic water pump structure can achieve certain effects, due to the limitations of the injection molding process and product structure, the requirements of the injection molding body, etc., problems such as cracking of the injection molding body may occur during use, thereby increasing costs and reducing efficiency. Therefore, technical personnel in this field provide an integrated magnetically driven rotor water pump to solve the problems raised in the above background. Utility Model Content

[0005] The purpose of the utility model is to provide an integrated magnetic drive rotor water pump 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:

[0007] An integrated magnetically driven rotor water pump comprises a water pump casing, a rotor gasket, a rotor assembly, a stator assembly, a terminal assembly, a rear cover and a circuit board assembly. The water pump casing and the rotor gasket are fastened together, the rotor assembly and the stator assembly are rotationally connected, the stator assembly and the terminal assembly are fastened together, the circuit board assembly and the stator assembly are fastened together, the rear cover and the stator assembly are fastened together, the mounting frame and the stator assembly are fastened together, and the water pump casing and the stator assembly are fastened together.

[0008] By adopting the above technical scheme, the rotor gasket plays a limiting role. On the other hand, the rotor gasket can effectively withstand water pressure and protect internal components, ensure the sealing and shock absorption inside the water pump, thereby playing a role of shock absorption and noise prevention. The terminal assembly provides power connection and transmits external signals to the circuit board assembly. The circuit board assembly is responsible for controlling the operating status of the water pump, such as starting, stopping, speed adjustment, etc., so that the operation of the water pump is more intelligent. The user can adjust the operating parameters of the water pump according to needs. The rotor assembly and the stator assembly are rotatably connected. After the stator assembly is energized, a magnetic field is formed to drive the rotor assembly to rotate. The rear cover protects the inside of the water pump from external interference, thereby enhancing the sealing and overall structural stability of the water pump. The mounting frame can facilitate the installation of the water pump to the corresponding position of the car, thereby ensuring the overall maintenance convenience of the water pump, ensuring the time for replacement and maintenance, reducing downtime, and providing an efficient and reliable circulating water flow delivery method.

[0009] Furthermore, the rotor assembly includes an upper impeller assembly and a lower impeller assembly, the upper impeller assembly and the lower impeller assembly are tightly connected, and the lower impeller assembly is rotatably connected to the stator assembly.

[0010] By adopting the above technical solution, the upper impeller assembly is used to generate positive pressure inside the water pump to push the liquid upward. The upper impeller assembly is located on the upper part of the rotor assembly and is directly affected by the driving magnetic field. It is responsible for converting electrical energy into mechanical energy and driving the liquid flow. The lower impeller is used to assist the upper impeller to ensure the smooth flow of liquid inside the water pump. The lower impeller can provide additional thrust to help overcome the resistance within the system and optimize the liquid delivery efficiency. Sealing elements and shock-absorbing materials are also included between the upper and lower impellers to prevent liquid leakage and reduce vibration during operation. These elements are essential to maintaining long-term stable operation of the water pump and ensure the stability, durability and ease of maintenance of the connection. The blade design of the upper and lower impellers is based on the principles of fluid dynamics to maximize flow and improve efficiency while reducing energy loss. It can efficiently convert and transfer energy and provide stable and efficient fluid delivery functions.

[0011] Furthermore, the lower impeller assembly includes a bearing, a lower impeller injection-molded body and a rotor overmolded assembly. The bearing and the lower impeller injection-molded body are tightly connected, and the rotor overmolded assembly and the lower impeller injection-molded body are tightly connected. An even number of first planar structures are provided on the bearing, and the planar structures are used to limit the position between the bearing and the rotor overmolded assembly. An even number of second planar structures are provided on the outer side of the rotor assembly, and every two second planar structures are symmetrically arranged. The second planar structures are used to facilitate the identification of the position of the magnetic steel when the rotor is magnetized.

[0012] By adopting the above technical solution, the bearing is a key part supporting the rotation of the rotor assembly, ensuring the smooth rotation of the rotor and reducing friction and wear. The fastening connection between the bearing and the lower impeller injection molding body provides a stable supporting structure. The lower impeller injection molding body is the main part of the lower impeller, which is made by injection molding technology and is fastened to the bearing. The rotor overmolding assembly surrounds the bearing and the rotor, which is fastened to the lower impeller injection molding body, providing additional structural stability and durability. An even number of first planar structures are provided on the bearing. These planar structures are used to limit the bearing and the rotor injection molding body to ensure the accurate position of the bearing during rotation and avoid deviation. The first planar structure is designed A mechanical limit is provided on the bearing to ensure the correct alignment between the bearing and the rotor injection molding, which helps to reduce friction and wear and extend the service life of the bearing. An even number of second plane structures are arranged on the rotor assembly. These plane structures are arranged in a symmetrical manner. Their main function is to facilitate the identification of the magnetic steel position when the rotor is magnetized, ensure the correct distribution of the magnetic field and the efficient operation of the rotor. It not only provides the necessary mechanical support and protection, but also optimizes the magnetic properties and operating efficiency of the rotor through fine structural design. The introduction of the first plane structure and the second plane structure, especially in the consideration of magnetization and rotor positioning, further improves the performance of the water pump.

[0013] Furthermore, the rotor overmolding assembly includes a rotor overmolding body, a rotor core and a magnet. The rotor overmolding body and the rotor core are firmly connected. The rotor core is provided with a radial core positioning groove. The magnet and the rotor core are firmly connected. The magnet and the core radial positioning groove are firmly connected.

[0014] By adopting the above technical solution, the rotor plastic coating is made of corrosion-resistant and high-strength materials, and its main function is to protect the rotor core and magnetic steel from direct contact with liquid or corrosion by the external environment. The rotor core is the main part of the rotor magnetic circuit and is usually made of materials with high magnetic permeability. The core is designed with radial positioning grooves for positioning and fixing the magnetic steel to ensure the accurate position of the magnetic steel, thereby optimizing the magnetic field distribution. The rotor plastic coating and the rotor core are connected by fastening to ensure stability and sealing between the two. The radial positioning grooves of the core are grooves for placing and fixing the magnetic steel. These grooves ensure that the magnetic steel can be accurately positioned on the core, thereby achieving optimal magnetic field distribution and rotor efficiency. The magnetic steel is a key part for generating a magnetic field. By fastening with the rotor core, the stability and safety of the magnetic steel during high-speed rotation are ensured. The fastening connection between the magnetic steel and the radial positioning groove of the core not only ensures the accurate position of the magnetic steel, but also helps to reduce the leakage of the magnetic field and improve the concentration of the magnetic field, thereby enhancing the performance of the water pump. The rotor plastic coating assembly ensures efficient operation and long-term stability of the rotor, thereby improving a longer service life and lower maintenance requirements.

[0015] Furthermore, a groove structure is provided on the lower impeller injection molding body, and a boss structure is provided on the rotor overmolded body, and the groove structure and the undercut boss are fastened together.

[0016] By adopting the above technical solution, the groove structure is specifically used to match the boss structure, and the boss structure cooperates with the groove structure on the lower impeller injection molding body. The design of the boss structure takes into account the force that needs to be borne and the vibration generated during the operation of the rotor to ensure the stability and durability of the connection. The design of the groove structure and the boss structure simplifies the assembly process, making the alignment and fixation of the lower impeller injection molding body and the rotor overmolded body faster and more accurate. This design reduces assembly errors and improves production efficiency. The tight connection between the groove and the boss structure enhances the overall stability of the rotor assembly, ensuring high efficiency and reducing wear during the long-term operation of the water pump, which can effectively reduce vibration and noise during operation, improve the operation quality of the water pump, and ensure that maintenance and replacement of parts can be carried out relatively easily when necessary.

[0017] Furthermore, an undercut boss is provided on the rotor plastic-encapsulated body, and an undercut groove is provided on the rotor core, and the undercut boss and the undercut groove are tightly connected.

[0018] By adopting the above technical solution, the undercut boss is used to form an engagement with the undercut groove on the rotor core to ensure that the two can be tightly engaged. The fastened connection between the undercut boss and the undercut groove provides extremely high structural stability, effectively preventing the loose connection due to vibration or impact, and simplifying the assembly process. Because the engagement of the undercut boss and the undercut groove can be completed manually, no additional fasteners such as screws or glue are required, which reduces assembly time and cost. Moreover, when maintenance or replacement of parts is required, they can be easily separated by appropriate tools, which is convenient for maintenance and replacement, reduces the need for additional fasteners, reduces the number of parts, thereby reducing potential failure points and improving overall reliability.

[0019] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0020] 1. The upper impeller assembly is used to generate positive pressure inside the water pump to push the liquid upward. The upper impeller assembly is located on the upper part of the rotor assembly and is directly affected by the driving magnetic field. It is responsible for converting electrical energy into mechanical energy and driving the liquid flow. The lower impeller is used to assist the upper impeller to ensure the smooth flow of liquid inside the water pump. The lower impeller can provide additional thrust to help overcome the resistance within the system and optimize the liquid delivery efficiency. Sealing elements and shock-absorbing materials are also included between the upper and lower impellers to prevent liquid leakage and reduce vibration during operation. These elements are essential to maintaining the long-term stable operation of the water pump, ensuring the stability, durability and ease of maintenance of the connection. The blade design of the upper and lower impellers is based on the principles of fluid dynamics to maximize flow and improve efficiency while reducing energy loss. It can efficiently convert and transfer energy and provide stable and efficient fluid delivery functions.

[0021] 2. The bearing ensures the smooth rotation of the rotor and reduces friction and wear. The tight connection between the bearing and the lower impeller injection molding body provides a stable support structure. The lower impeller injection molding body is the main part of the lower impeller, which is made by injection molding technology and is tightly connected to the bearing. The rotor overmolding component surrounds the bearing and the rotor. It is tightly connected to the lower impeller injection molding body to provide additional structural stability and durability. An even number of first plane structures are set on the bearing. These plane structures are used to limit the position between the bearing and the rotor injection molding body to ensure the accurate position of the bearing during rotation and avoid deviation. The first plane structure is designed on the bearing to provide a mechanical Limiting ensures the correct alignment between the bearing and the rotor injection molding, which helps to reduce friction and wear and extend the service life of the bearing. An even number of second planar structures are arranged on the outside of the rotor assembly. These planar structures are arranged in a symmetrical manner. Their main function is to facilitate the identification of the magnetic steel position when the rotor is magnetized, ensure the correct distribution of the magnetic field and the efficient operation of the rotor, not only provide the necessary mechanical support and protection, but also optimize the magnetic properties and operating efficiency of the rotor through fine structural design. The introduction of the first planar structure and the second planar structure, especially in the consideration of magnetization and rotor positioning, further improves the performance of the water pump.

[0022] 3. The rotor plastic coating is made of corrosion-resistant and high-strength materials to protect the rotor core and magnets from direct contact with liquid or corrosion from the external environment. The rotor core is the main part of the rotor magnetic circuit and is usually made of materials with high magnetic permeability. The core is designed with radial positioning grooves to locate and fix the magnets to ensure the accurate position of the magnets, thereby optimizing the magnetic field distribution. The rotor plastic coating and the rotor core are connected by fastening to ensure stability and sealing between the two. The radial positioning grooves of the core are used to place and fix the grooves of the magnets. These grooves ensure that the magnets can be accurately positioned on the core, thereby achieving optimal magnetic field distribution and rotor efficiency. The magnets are the key part of generating the magnetic field. By fastening with the rotor core, the stability and safety of the magnets at high-speed rotation are ensured. The fastening connection between the magnets and the radial positioning grooves of the core not only ensures the accurate position of the magnets, but also helps to reduce the leakage of the magnetic field and improve the concentration of the magnetic field, thereby enhancing the performance of the water pump. The rotor plastic coating assembly ensures efficient operation and long-term stability of the rotor, thereby improving longer service life and lower maintenance requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] 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:

[0024] Figure 1 It is an exploded view of the overall structure of the utility model;

[0025] Figure 2 It is a structural schematic diagram of the rotor assembly of the utility model;

[0026] Figure 3 It is a schematic diagram of the lower impeller assembly of the utility model;

[0027] Figure 4 This is a schematic diagram of the injection molded body of the lower impeller of the utility model;

[0028] Figure 5 This is a top view of the rotor plastic-coated assembly of the utility model;

[0029] Figure 6 It is a schematic diagram of the rotor plastic-coated assembly of the utility model.

[0030] In the figure: 1. water pump housing; 2. rotor gasket; 3. rotor assembly; 33. second plane structure; 31. upper impeller; 32. lower impeller assembly; 321. bearing; 3211. first plane structure; 322. lower impeller injection molding body; 3221. groove structure; 323. rotor overmolded assembly; 3231. rotor overmolded body; 32311. boss structure; 3232. rotor core; 3233. magnetic steel; 3234. core radial positioning groove; 3235. undercut boss; 3236. undercut groove; 4. stator assembly; 5. terminal assembly; 6. rear cover; 7. circuit board assembly; 8. mounting bracket. DETAILED DESCRIPTION

[0031] 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.

[0032] See also Figure 1-6 , the utility model provides a technical solution:

[0033] An integrated magnetically driven rotor water pump comprises a water pump housing 1, a rotor gasket 2, a rotor assembly 3, a stator assembly 4, a terminal assembly 5, a rear cover 6 and a circuit board assembly 7. The water pump housing 1 is fastened to the rotor gasket 2, the rotor assembly 3 is rotationally connected to the stator assembly 4, the stator assembly 4 is fastened to the terminal assembly 5, the circuit board assembly 7 is fastened to the stator assembly 4, the rear cover 6 is fastened to the stator assembly 4, the mounting frame 8 is fastened to the stator assembly 4, and the water pump housing 1 is fastened to the stator assembly 4.

[0034] By adopting the above technical scheme, the rotor gasket 2 plays a limiting role. On the other hand, the rotor gasket 2 can effectively withstand the water pressure and protect the internal components to ensure the sealing and shock absorption of the water pump, thereby playing the role of shock absorption and noise prevention. The terminal assembly 5 provides power connection and transmits external signals to the circuit board assembly 7. The circuit board assembly 7 is responsible for controlling the operating status of the water pump, such as starting, stopping, speed adjustment, etc., so that the operation of the water pump is more intelligent. The user can adjust the operating parameters of the water pump according to needs. The rotor assembly 3 and the stator assembly 4 are rotatably connected. After the stator assembly 4 is energized, a magnetic field is formed to drive the rotor assembly 3 to rotate. The rear cover 6 protects the inside of the water pump from external interference, thereby enhancing the sealing and overall structural stability of the water pump. The mounting frame 8 can facilitate the installation of the water pump to the corresponding position of the car, thereby ensuring the overall maintenance convenience of the water pump, ensuring the time for replacement and maintenance, reducing downtime, and providing an efficient and reliable circulating water flow transportation method.

[0035] Furthermore, the rotor assembly 3 includes an upper impeller 31 and a lower impeller assembly 32 , the upper impeller 31 and the lower impeller assembly 32 are fastened together, and the lower impeller assembly 32 is rotatably connected to the stator assembly 4 .

[0036] By adopting the above technical solution, the upper impeller 31 component is used to generate positive pressure inside the water pump to push the liquid upward. The upper impeller 31 component is located on the upper part of the rotor assembly 3 and is directly affected by the driving magnetic field. It is responsible for converting electrical energy into mechanical energy and driving the liquid to flow. The lower impeller is used to assist the upper impeller 31 to ensure the smooth flow of liquid inside the water pump. The lower impeller can provide additional thrust to help overcome the resistance within the system and optimize the liquid delivery efficiency. Sealing elements and shock-absorbing materials are also included between the upper impeller 31 and the lower impeller to prevent liquid leakage and reduce vibration during operation. These elements are essential to maintaining the long-term stable operation of the water pump and ensure the stability, durability and ease of maintenance of the connection. The blade design of the upper impeller 31 and the lower impeller is based on the principles of fluid dynamics to maximize flow and improve efficiency while reducing energy loss. It can efficiently convert and transfer energy and provide stable and efficient fluid delivery functions.

[0037] Furthermore, the lower impeller assembly 32 includes a bearing 321, a lower impeller injection-molded body 322 and a rotor overmolded assembly 323. The bearing 321 and the lower impeller injection-molded body 322 are firmly connected, and the rotor overmolded assembly 323 and the lower impeller injection-molded body 322 are firmly connected. An even number of first planar structures 3211 are provided on the bearing 321, and the planar structure is used for limiting the position between the bearing 321 and the rotor overmolded assembly 323. An even number of second planar structures 33 are provided on the outer side of the rotor assembly 3, and each two of the second planar structures 33 are symmetrically arranged. The second planar structures 33 are used to facilitate identification of the position of the magnetic steel 3233 when the rotor is magnetized.

[0038] By adopting the above technical solution, the bearing 321 is a key part supporting the rotation of the rotor assembly 3, ensuring the smooth rotation of the rotor and reducing friction and wear. The fastening connection between the bearing 321 and the lower impeller injection molding body 322 provides a stable supporting structure. The lower impeller injection molding body 322 is the main part of the lower impeller, which is made by injection molding technology and is fastened to the bearing 321. The rotor overmolding component 323 surrounds the bearing 321 and the rotor, and is fastened to the lower impeller injection molding body 322 to provide additional structural stability and durability. An even number of first planar structures 3211 are provided on the bearing 321. These planar structures are used to limit the bearing 321 and the rotor injection molding body to ensure the accurate position of the bearing 321 during rotation and avoid deviation. The first The planar structure 3211 is designed on the bearing 321, providing a mechanical limit to ensure the correct alignment between the bearing 321 and the rotor injection molding, which helps to reduce friction and wear and extend the service life of the bearing 321. An even number of second planar structures 33 are arranged on the outer side of the rotor assembly 3. These planar structures are arranged in a symmetrical manner. Their main function is to facilitate the identification of the position of the magnetic steel 3233 when the rotor is magnetized, ensuring the correct distribution of the magnetic field and the efficient operation of the rotor. It not only provides the necessary mechanical support and protection, but also optimizes the magnetic properties and operating efficiency of the rotor through fine structural design. The introduction of the first planar structure 3211 and the second planar structure 33, especially in terms of magnetization and rotor positioning, further improves the performance of the water pump.

[0039] Furthermore, the rotor overmolding assembly 323 includes a rotor overmolding body 3231, a rotor core 3232 and a magnet 3233. The rotor overmolding body 3231 and the rotor core 3232 are fastened together. The rotor core 3232 is provided with a core radial positioning groove 3234. The magnet 3233 and the rotor core 3232 are fastened together. The magnet 3233 and the core radial positioning groove 3234 are fastened together.

[0040] By adopting the above technical solution, the rotor plastic package 3231 is made of corrosion-resistant and high-strength materials, and its main function is to protect the rotor core 3232 and the magnetic steel 3233 to prevent direct contact with liquid or corrosion by the external environment. The rotor core 3232 is the main part of the rotor magnetic circuit and is usually made of a material with high magnetic permeability. A radial positioning groove is designed on the core to locate and fix the magnetic steel 3233 to ensure the accurate position of the magnetic steel 3233, thereby optimizing the magnetic field distribution. The rotor plastic package 3231 is connected to the rotor core 3232 by fastening to ensure stability and sealing between the two. The radial positioning groove 3234 of the core is used to place and fix the magnetic steel 3233. 3, these slots ensure that the magnet 3233 can be accurately positioned on the core, so as to achieve the best magnetic field distribution and rotor efficiency. The magnet 3233 is the key part of generating the magnetic field. By fastening with the rotor core 3232, the stability and safety of the magnet 3233 during high-speed rotation are ensured. The fastening connection between the magnet 3233 and the core radial positioning groove 3234 not only ensures the accurate position of the magnet 3233, but also helps to reduce the leakage of the magnetic field and improve the concentration of the magnetic field, thereby enhancing the performance of the water pump. The rotor plastic-coated component 323 ensures the efficient operation and long-term stability of the rotor, thereby increasing the service life and lowering the maintenance requirements.

[0041] Furthermore, a groove structure 3221 is provided on the lower impeller injection molding body 322, and a boss structure 32311 is provided on the rotor overmolded body 3231, and the groove structure 3221 and the boss structure 32311 are fastened together.

[0042] By adopting the above technical scheme, the groove structure 3221 is specifically used to match the boss structure 32311. The boss structure 32311 cooperates with the groove structure 3221 on the lower impeller injection molding body 322. The design of the boss structure 32311 takes into account the force that needs to be borne and the vibration generated during the operation of the rotor to ensure the stability and durability of the connection. The design of the groove structure 3221 and the boss structure 32311 simplifies the assembly process, making the alignment and fixation of the lower impeller injection molding body 322 and the rotor overmolded body 3231 faster and more accurate. This design reduces assembly errors and improves production efficiency. The fastened connection between the groove and the boss structure 32311 enhances the overall stability of the rotor assembly 3, ensures that high efficiency is maintained and wear is reduced during the long-term operation of the water pump, can effectively reduce vibration and noise during operation, improve the operation quality of the water pump, and ensure that maintenance and replacement of parts can be carried out relatively easily when necessary.

[0043] Furthermore, an undercut boss 3235 is provided on the rotor overmolded body 3231 , and an undercut groove 3236 is provided on the rotor core 3232 . The undercut boss 3235 and the undercut groove 3236 are firmly connected.

[0044] By adopting the above technical solution, the undercut boss 3235 is used to form an engagement with the undercut groove 3236 on the rotor core 3232 to ensure that the two can be tightly engaged. The fastened connection between the undercut boss 3235 and the undercut groove 3236 provides extremely high structural stability, effectively preventing the loose connection due to vibration or impact, and simplifying the assembly process. Because the engagement of the undercut boss 3235 and the undercut groove 3236 can be completed manually, no additional fasteners such as screws or glue are required, thereby reducing assembly time and cost. Moreover, when maintenance or replacement of parts is required, they can also be easily separated by appropriate tools, which is convenient for maintenance and replacement, reduces the need for additional fasteners, reduces the number of parts, thereby reducing potential failure points, and improves overall reliability.

[0045] Working principle of the utility model: an integrated magnetically driven rotor water pump realizes efficient liquid transportation through the precise design of its components and the mutually tightened connection mode; the rotor gasket 2 protects the internal components while limiting and bearing the water pressure, reduces shock and prevents noise; the circuit board assembly 7 receives the power supply and external signals provided by the terminal assembly 5, and intelligently controls the start, stop and speed adjustment of the water pump; the rotor assembly 3 is driven by the magnetic field generated by the stator assembly 4, and rotates to promote the flow of liquid; at the same time, various fastening connections and specific designs such as the engagement of the undercut boss 3235 and the undercut groove 3236 ensure the firm connection between the components and the sealing of the overall structure, thereby providing an efficient, reliable and easy-to-maintain circulating water pump system.

[0046] 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.

[0047] 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 integrated magnetic drive rotor water pump, characterized in that: The integrated magnetic force driven rotor water pump comprises a water pump housing (1), a rotor gasket (2), a rotor assembly (3), a stator assembly (4), a terminal assembly (5), a rear cover (6), a circuit board assembly (7) and a mounting frame (8); the water pump housing (1) and the rotor gasket (2) are fastened together, the rotor assembly (3) and the stator assembly (4) are rotatably connected, the stator assembly (4) and the terminal assembly (5) are fastened together, the circuit board assembly (7) and the stator assembly (4) are fastened together, the rear cover (6) and the stator assembly (4) are fastened together, the mounting frame (8) and the stator assembly (4) are fastened together, and the water pump housing (1) and the stator assembly (4) are fastened together.

2. The integrated magnetic drive rotor water pump according to claim 1, characterized in that: The rotor assembly (3) comprises an upper impeller (31) and a lower impeller assembly (32); the upper impeller (31) and the lower impeller assembly (32) are tightly connected, and the lower impeller assembly (32) and the stator assembly (4) are rotatably connected.

3. The integrated magnetic drive rotor water pump according to claim 2, characterized in that: The lower impeller assembly (32) comprises a bearing (321), a lower impeller injection-molded body (322) and a rotor overmolded assembly (323); the bearing (321) and the lower impeller injection-molded body (322) are tightly connected; the rotor overmolded assembly (323) and the lower impeller injection-molded body (322) are tightly connected; an even number of first planar structures (3211) are provided on the bearing (321); the first planar structures (3211) are used for limiting the position between the bearing (321) and the rotor overmolded assembly (323); an even number of second planar structures (33) are provided on the outer side of the rotor assembly (3); every two of the second planar structures (33) are symmetrically arranged; the second planar structures (33) are used for identifying the position of the magnetic steel (3233) when the rotor is magnetized.

4. The integrated magnetic drive rotor water pump according to claim 3, characterized in that: The rotor overmolding assembly (323) comprises a rotor overmolding body (3231), a rotor core (3232) and a magnetic steel (3233); the rotor overmolding body (3231) and the rotor core (3232) are tightly connected; a core radial positioning groove (3234) is provided on the rotor core (3232); the magnetic steel (3233) and the rotor core (3232) are tightly connected; and the magnetic steel (3233) and the core radial positioning groove (3234) are tightly connected.

5. The integrated magnetic drive rotor water pump according to claim 4, characterized in that: The lower impeller injection molding body (322) is provided with a groove structure (3221), and the rotor overmolded body (3231) is provided with a boss structure (32311), and the groove structure (3221) and the boss structure (32311) are firmly connected.

6. The integrated magnetic drive rotor water pump according to claim 4, characterized in that: The rotor plastic-encapsulated body (3231) is provided with an undercut boss (3235), and the rotor iron core (3232) is provided with an undercut groove (3236), and the undercut boss (3235) and the undercut groove (3236) are tightly connected.

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