A shielded pump motor arrangement

Abstract

The application provides a shielding pump motor device, a coil winding of a stator assembly adopts a modular design, a plurality of coil winding units are arranged in a circular ring shape, each coil winding unit is slidably connected with a winding support along a radial direction of the motor, under driving action of a stator adjusting mechanism, a radial distance between the coil winding unit and a motor rotor changes, a magnetic flux parameter of the motor coil winding changes, thus under the same electric input parameter, output characteristics of the motor can be changed accordingly, thus the shielding pump equipment can adapt to different working depths, liquid densities and other actual working environments, and effectively solve the technical problems that current shielding pump equipment has poor adaptability to different working environments and high energy consumption cost.

Description

Technical Field

[0001] This invention relates to the field of pump equipment technology, and more specifically, to a canned motor device for a pump. Background Technology

[0002] A canned motor pump connects the pump and motor together. The motor rotor and pump impeller are fixed on the same shaft, and a shielding sleeve separates the motor rotor from the stator. The rotor rotates in the medium being pumped, and its power is transmitted to the rotor through the stator's magnetic field. Furthermore, the manufacture of canned motor pumps is not complex; their hydraulic end can be designed and manufactured according to the structural types and relevant standards commonly used in centrifugal pumps. Due to their characteristics, canned motor pumps have strong structural stability. In practical applications, pump units are often used to transport different liquid media, and the pump's installation depth often varies significantly depending on the application environment. For these two reasons, canned motor pumps need to adapt to significantly different liquid pressures. The same type of canned motor pump often fails to output liquid at the most suitable conditions under different liquid pressure operating environments, frequently resulting in insufficient or excessive pumping capacity, wasting energy. To address this, various canned motor pump units with different operating parameters exist, requiring users to select different types of canned motor pumps based on different actual working environments. However, this makes it difficult to achieve multi-purpose functionality with a single machine, significantly increasing the user's actual equipment costs.

[0003] In summary, existing canned motor pumps suffer from technical problems such as poor adaptability to different working environments and high energy consumption costs. Summary of the Invention

[0004] The technical problem this invention aims to solve is the poor adaptability of existing canned motor pumps to different working environments and their high energy consumption costs.

[0005] To address the aforementioned problems, this invention provides a canned motor device for a pump, comprising a motor housing and a rotor assembly and a stator assembly rotatably coupled within the motor housing. The stator assembly has a hollow cylindrical structure, and the rotor assembly is a shaft-like structure housed within the inner cavity of the stator assembly. The stator assembly includes multiple coil winding units distributed in a circular array. Each coil winding unit is supported and connected to the motor housing via a winding bracket, and the coil winding units and the winding bracket are slidably coupled. The stator assembly further includes a stator adjustment mechanism that drives each coil winding unit to move radially along the winding bracket, thereby adjusting the motor's output parameters by changing the radial distance between each coil winding unit and the rotor assembly.

[0006] The canned motor device provided by this invention further optimizes the stator design based on the traditional pump motor structure. The stator assembly adopts a modular design for the coil windings, with multiple coil winding units arranged in a circular ring. Each coil winding unit is slidably connected to the winding support along the motor's radial direction. Under the driving action of the stator adjustment mechanism, the radial distance between the coil winding unit and the motor rotor changes, resulting in a change in the magnetic flux parameters of the motor coil windings. Therefore, under the same electrical input parameters, the motor's output characteristics can be changed accordingly. Thus, the canned pump device can adapt to different working environments such as different working depths and liquid densities. In environments with large pump immersion depth and high water pressure, shortening the distance between the coil winding and the rotor assembly increases the motor's magnetic flux, thereby enhancing the pump motor's working torque and improving delivery capacity. In environments with lower water pressure, increasing the distance between the coil winding and the rotor assembly allows the motor to operate at a higher speed with lower torque under the same input power parameters, adapting to low-pressure working environments. In summary, this design ensures that the canned motor pump remains highly efficient under different working environments, improving pump efficiency and reducing energy waste. It effectively solves the technical problems of poor adaptability and high energy consumption costs of current canned motor pump equipment in different working environments.

[0007] As a preferred embodiment, the winding support includes a cylindrical frame-shaped support body and multiple radial support groups evenly spaced along the motor axis. Each radial support group includes multiple radial supports distributed radially along the motor axis. The coil winding units are all positioned between two radial supports located at the same radial position and axially adjacent to each other. This design further optimizes the winding support structure. The shape of the support body adapts to the hollow cylindrical structure of the stator assembly, accommodating the distribution and adjustable position characteristics of the coil winding units. Multiple radial support groups are evenly spaced along the axial direction of the support body, and each radial support group includes multiple spoke-shaped radial supports. A sliding space is formed between two radial supports at the same circumferential position in two adjacent radial support groups to accommodate one coil winding unit. This structure can provide a stable lower limit for the coil winding unit and facilitate its radial sliding adjustment. It should be noted that the preferred design in this application is to set three axially adjacent radial support groups, i.e., two groups of coil winding units are distributed at the same circumferential position along the motor axis, resulting in a simple structure and good assembly and implementation performance.

[0008] As a preferred embodiment, the inner surface of the radial support is provided with a groove structure along the length of the radial support. The coil winding unit includes a coil structure and a unit support for supporting the coil structure. Sliding blocks are symmetrically arranged at both ends of the outer wall of the unit support. The sliding blocks are accommodated within the corresponding groove structures, allowing the coil winding unit to slide against the radial support. This design optimizes the fit between the coil winding unit and the radial support based on the above structure. The inner surface of the radial support refers to the side of one radial support that is axially adjacent to another radial support located in the same circumferential position. By providing a groove structure on this side and corresponding sliding blocks at both ends of the unit support, the relative sliding fit between the unit support and the radial support can be made more stable and controllable.

[0009] As a preferred embodiment, the inner sidewall of the slide groove structure is provided with a conductive plate along its length, and the sidewall of the slider structure is provided with a contact structure that is electrically connected to the coil structure. The position of the contact structure corresponds to the position of the conductive plate. During the relative sliding stroke of the slider structure and the slide groove structure, the contact structure maintains contact with the conductive plate.

[0010] To ensure the coil's conductivity during radial sliding adjustment, a radially conductive plate is installed within the sliding groove structure at the sliding engagement position between the coil winding unit and the radial support. A contact structure for connecting the coil is located on the outer wall of the corresponding slider structure. Preferably, the contact structure protrudes from the opposite side walls of the slider structure, and is pushed outwards by an elastic structure, ensuring good contact and conductivity. Furthermore, this design avoids fatigue damage to the connecting wires used for transition during repeated adjustments of the coil winding unit, which is a problem when direct wire connections are used.

[0011] As a preferred embodiment, the radial support and the support body are provided with a hidden wire groove structure that connects to the location of the conductive plate. The hidden wire groove structure is used to run wires to connect and conduct the coil structure of each coil winding unit.

[0012] The main purpose of this design is to ensure that each coil winding unit is always in contact with each other and connected as a whole circuit. A hidden wire groove structure is set inside the bracket to hide the wiring. This wire groove structure is connected to the conductive plate in the sliding groove structure of the radial bracket inside the bracket. The hidden wire groove structure is connected to the outer peripheral wall of the bracket body. The coil structures of each coil winding unit are connected by the wiring on the outer peripheral wall of the bracket body.

[0013] As a preferred embodiment, the stator adjustment mechanism includes an adjustment screw with one end rotatably positioned axially with the motor housing, and an adjustment drive motor for driving the adjustment screw to rotate. The adjustment drive motor is mounted on the motor housing. The adjustment screw is arranged radially along the motor. The unit bracket is provided with an adjustment screw hole arranged radially along the motor. The adjustment screw and the adjustment screw hole cooperate with each other. The adjustment drive motor drives the adjustment screw to rotate, thereby driving the unit bracket to move radially along the motor.

[0014] This design provides a preferred stator adjustment mechanism, which forms a rotary transmission by adjusting the rotational motion output of the drive motor and the adjusting screw that is axially positioned and circumferentially rotatable connected to the motor housing. Through the mutual cooperation between the adjusting screw and the adjusting screw hole on the unit bracket, the circumferential rotational motion of the adjusting screw is converted into the axial feeding motion between units along the adjusting screw, that is, the movement of the unit bracket along the radial direction of the motor. This transmission design has a simple structure, stable motion control, and can relatively accurately control the feed amount of the coil winding unit.

[0015] As a preferred embodiment, the end of the radial support is provided with an elastic strip plate. The end of the elastic strip plate abuts against the unit support, and the elastic strip plate provides elastic force to press the unit support against the adjusting screw, thereby providing frictional force for radial positioning of the unit support. Based on the structure of the aforementioned drive design, this design adapts to the transmission of the screw and the screw hole, providing a corresponding positioning design to avoid loosening that could cause instability in the radial position of the coil winding. Specifically, the structure with the elastic strip plate presses against the unit support, providing an oblique pressing force between the unit support and the adjusting screw. This pressing force increases the frictional force between the adjusting screw and the adjusting screw hole, thereby effectively preventing positional loosening caused by vibration.

[0016] As a preferred embodiment, the output end of the adjusting drive motor is connected to a reduction gear set, and the adjusting lead screw is connected to the adjusting drive motor via the reduction gear set. This design optimizes the transmission between the adjusting drive motor and the adjusting lead screw structure by setting a reduction gear set between them. Through this structure, the rotation output by the motor is reduced and transmitted to the adjusting lead screw. This design makes the feeding action of the coil winding unit more stable and controllable, and can improve the accuracy of the radial position adjustment of the coil winding unit.

[0017] As a preferred embodiment, a central control unit is installed on the motor housing. This central control unit is connected to the adjustable drive motor and outputs control signals to control the rotation direction and angle of the drive motor. This design optimizes the control of the drive motor by providing a dedicated central control unit for automated and intelligent control of the output drive actions.

[0018] As a preferred embodiment, the rotor assembly is equipped with a speed sensor for measuring motor speed and a pressure sensor for measuring water pressure. Both the speed sensor and the pressure sensor are electrically connected to the central controller, which provides feedback adjustment based on the acquired speed and pressure signals. This design, building upon the aforementioned control of the drive motor via a central controller, further incorporates corresponding sensors. The pressure sensor and speed sensor acquire the pump motor's operating parameter signals in real time and transmit these signals to the central controller, which can then perform accurate feedback control based on the acquired data signals. Attached Figure Description

[0019] Figure 1 This is a cross-sectional structural schematic diagram of a canned pump motor device provided by the present invention;

[0020] Figure 2 for Figure 1 A partial sectional exploded view of the motor unit of the shielded pump.

[0021] in, Figures 1-2 middle:

[0022] 1. Rotor assembly; 2. Coil winding unit; 2-1. Coil structure; 2-2. Unit support; 2-3. Slider structure; 2-4. Contact structure; 3. Winding support; 3-1. Support body; 3-2. Radial support; 3-3. Slot structure; 4. Motor housing; 5. Conductive plate; 6. Adjusting screw; 7. Adjusting drive motor; 8. Elastic strip; 9. End gear; 10. Transmission gear; 11. Hidden slot structure. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0024] Before providing a detailed explanation of the working principle of this invention, further clarification is needed regarding the following: In this description, terms such as "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, an indirect connection through an intermediate medium, or a connection of two components welded together. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] refer to Figure 1 , Figure 2 The following examples illustrate this. Figure 1 This is a cross-sectional structural schematic diagram of a canned pump motor device provided by the present invention; Figure 2 for Figure 1 A partial sectional exploded view of the motor unit of the shielded pump is a view obtained by partially cutting along a section perpendicular to the motor axis at the location of the winding support and coil winding unit of the motor stator assembly.

[0027] An embodiment of the present invention provides a canned motor device for a pump, including a motor housing 4 and a rotor assembly 1 and a stator assembly rotatably coupled within the motor housing 4. The stator assembly has a hollow cylindrical structure, and the rotor assembly 1 is a shaft-like structure housed within the cavity of the stator assembly. The stator assembly includes a plurality of coil winding units 2 arranged in a circular array. Each coil winding unit 2 is supported and connected to the motor housing 4 via a winding support 3. The coil winding unit 2 and the winding support 3 are slidably coupled. The stator assembly also includes a stator adjustment mechanism that drives each coil winding unit 2 to move radially along the winding support 3, thereby adjusting the output parameters of the motor by changing the radial distance between each coil winding unit 2 and the rotor assembly 1.

[0028] This canned motor pump unit further optimizes the stator design based on the traditional pump motor structure. The stator assembly's coil windings adopt a modular design, with multiple coil winding units 2 arranged in a ring. Each coil winding unit 2 is slidably connected to the winding support 3 along the motor's radial direction. Under the driving action of the stator adjustment mechanism, the radial distance between the coil winding unit 2 and the motor rotor changes, resulting in a change in the magnetic flux parameters of the motor coil windings. Therefore, under the same electrical input parameters, the motor's output characteristics can be changed accordingly. This allows the canned pump equipment to adapt to different working depths, liquid densities, and other practical working environments. In environments with large pump immersion depth and high water pressure, shortening the distance between the coil winding and rotor assembly 1 increases the motor's magnetic flux, thereby enhancing the pump motor's working torque and improving delivery capacity. In environments with lower water pressure, increasing the distance between the coil winding and rotor assembly 1 allows the motor to operate at a higher speed with lower torque under the same input power parameters, adapting to low-pressure working environments. In summary, this design ensures that the canned motor pump remains highly efficient under different working environments, improving pump efficiency and reducing energy waste. It effectively solves the current technical problems of poor adaptability and high energy consumption of canned motor pumps in different working environments.

[0029] In the technical solution provided in this embodiment, the winding support 3 includes a cylindrical frame-shaped support body 3-1 and multiple radial support groups evenly spaced along the motor axial direction. Each radial support group includes multiple radial supports 3-2 distributed radially along the motor. The coil winding units 2 are all disposed between two radial supports 3-2 located at the same radial position and axially adjacent. This design further optimizes the structure of the winding support 3. The shape and structure of the support body 3-1 adapts to the hollow cylindrical structure of the stator assembly, and is adapted to the distribution and adjustable position characteristics of the coil winding units 2. Multiple radial support groups are evenly spaced axially on the support body 3-1. Each radial support group includes multiple spoke-shaped radial supports 3-2. A sliding space is formed between two radial supports 3-2 at the same circumferential position of two adjacent radial support groups to accommodate a coil winding unit 2. This structure can form a stable lower limit position for the coil winding unit 2 and can easily realize its radial sliding adjustment position. It should be noted that the preferred design in this application is to set up three sets of axially adjacent radial support groups, that is, two sets of the coil winding units 2 are distributed in the same circumferential position along the motor shaft, which has a simple structure and good assembly and implementation performance.

[0030] In the technical solution provided in this embodiment, the inner side of the radial support 3-2 is provided with a groove structure 3-3 along the length direction of the radial support 3-2. The coil winding unit 2 includes a coil structure 2-1 and a unit support 2-2 for supporting the coil structure 2-1. Sliding blocks 2-3 are symmetrically arranged at both ends of the outer side wall of the unit support 2-2. The sliding blocks 2-3 are accommodated within the corresponding groove structure 3-3, allowing the coil winding unit 2 to slide with the radial support 3-2. This design optimizes the fit between the coil winding unit 2 and the radial support 3-2 based on the above structure. The inner side of the radial support 3-2 refers to the side of one radial support 3-2 that is axially adjacent to another radial support 3-2 located in the same circumferential position. By providing a groove structure 3-3 on this side and providing matching sliding blocks 2-3 at both ends of the unit support 2-2, the relative sliding fit between the unit support 2-2 and the radial support 3-2 can be made more stable and controllable.

[0031] In the technical solution provided in this embodiment, the winding support 3 has multiple sets of radial supports 3-2 arranged at equal intervals along the axial direction, and each adjacent radial support 3-2 is connected to a set of coil winding units 2. This design optimizes the structure of the winding support 3 and the arrangement of the coil winding units 2. In addition to the structure in the above design where the coil winding units 2 surround the rotor assembly 1 along a ring, more coil winding units 2 are distributed along the axial direction of the motor. That is, the sum of the axial lengths of multiple sets of coil winding units 2 constitutes the winding flux space that cooperates with the rotor assembly 1. The winding support 3 also adapts to this structure by having multiple radial supports 3-2 distributed along the axial direction at the same circumferential position. By increasing the number of adjustable coil winding units 2, the adjustment of the motor's working flux can be made more precise, and the motor can be more adaptable to the environment.

[0032] In the technical solution provided in this embodiment, the inner sidewall of the slide groove structure 3-3 is provided with a conductive plate 5 along its length direction, and the sidewall of the slider structure 2-3 is provided with a contact structure 2-4 that is electrically connected to the coil structure 2-1. The position of the contact structure corresponds to the position of the conductive plate 5. During the relative sliding stroke of the slider structure 2-3 and the slide groove structure 3-3, the contact structure 2-4 and the conductive plate 5 maintain contact and cooperation.

[0033] To ensure the continuity of the coil during the radial sliding adjustment of the coil winding unit 2, a radially conductive plate 5 is provided within the sliding groove structure 3-3 at the sliding engagement position between the coil winding unit 2 and the radial support 3-2. A contact structure 2-4 for the coil structure 2-1 is provided on the outer wall of the corresponding slider structure 2-3. Preferably, the contact structure 2-4 protrudes from the opposite side walls of the slider structure 2-3, and is connected to an elastic structure that pushes it outward, ensuring good contact and conductivity. Furthermore, this design avoids fatigue damage to the connecting wires used for transition during the repeated movement and adjustment of the coil winding unit 2 when direct wire connection is used.

[0034] In the technical solution provided in this embodiment, a hidden wire groove structure 11 is provided in the radial bracket 3-2 and the bracket body 3-1 to connect the location of the conductive plate 5. The hidden wire groove structure 11 is used to run wires to connect and conduct the coil structure 2-1 of each coil winding unit 2.

[0035] The main purpose of this design is to ensure that each coil winding unit 2 is always in contact with each other and connected as a whole circuit. A hidden wire groove structure 11 is set inside the bracket to hide the wiring. This wire groove structure is connected to the conductive plate 5 in the sliding groove structure 3-3 of the radial bracket 3-2 inside the bracket. The hidden wire groove structure 11 is connected to the outer peripheral wall of the bracket body 3-1. The coil structures 2-1 of each coil winding unit 2 are connected by the wiring on the outer peripheral wall of the bracket body 3-1.

[0036] In the technical solution provided in this embodiment, the stator adjustment mechanism includes an adjustment screw 6 with one end rotatably positioned and engaged with the motor housing 4, and an adjustment drive motor 7 that drives the adjustment screw 6 to rotate. The adjustment drive motor 7 is installed on the motor housing 4. The adjustment screw 6 is arranged radially along the motor. The unit bracket 2-2 is provided with an adjustment screw hole arranged radially along the motor. The adjustment screw 6 and the adjustment screw hole cooperate with each other. The adjustment drive motor 7 drives the adjustment screw 6 to rotate, thereby driving the unit bracket 2-2 to move radially along the motor.

[0037] Based on this, the preferred design is that the adjusting screw 6 is coaxially fixed with an end gear 9 at the end facing the support body 3-1. The output end of the adjusting drive motor 7 meshes with the end gear 9 through a transmission gear 10 such as a reversing gear or a reduction gear to drive the rotation of the adjusting screw 6. The adjusting drive motor 7 is installed and fixed to the support body 3-1 through a mounting base or a snap-fit ​​structure.

[0038] This design provides a preferred stator adjustment mechanism design, which forms a rotary transmission by adjusting the rotational motion output of the drive motor 7 and the adjusting screw 6 which is axially positioned and circumferentially rotatable connected to the motor housing 4. Through the mutual cooperation between the adjusting screw 6 and the adjusting screw hole on the unit bracket 2-2, the circumferential rotational motion of the adjusting screw 6 is converted into the axial feeding motion between units along the adjusting screw 6, that is, the movement of the unit bracket 2-2 along the radial direction of the motor. This transmission design has a simple structure, stable motion control, and can relatively accurately control the feed amount of the coil winding unit 2.

[0039] In the technical solution provided in this embodiment, an elastic strip 8 is provided at the end of the radial support 3-2. The end of the elastic strip 8 abuts against the unit support 2-2. The elastic strip 8 provides elastic force to press the unit support 2-2 against the adjusting screw 6, thereby providing frictional force for radial positioning of the unit support 2-2. Based on the structure of the above-mentioned drive design, this design adapts to the transmission of the screw and the screw hole, providing a corresponding positioning design to avoid loosening of the fit and causing instability in the radial position of the coil winding. Specifically, the structure of the elastic strip 8 presses against the unit support 2-2, providing an oblique pressing force between the unit support 2-2 and the adjusting screw 6. This pressing force increases the frictional force between the adjusting screw 6 and the adjusting screw hole, thereby effectively preventing positional loosening caused by vibration.

[0040] In the technical solution provided in this embodiment, the output end of the adjusting drive motor 7 is connected to a reduction gear set, and the adjusting lead screw 6 is connected to the adjusting drive motor 7 through the reduction gear set. This design optimizes the transmission between the adjusting drive motor 7 and the adjusting lead screw 6 by setting a reduction gear set between them. Through this structure, the rotation output by the motor is reduced and transmitted to the adjusting lead screw 6. This design makes the feeding action of the coil winding unit 2 more stable and controllable, and can improve the accuracy of the radial position adjustment of the coil winding unit 2.

[0041] In the technical solution provided in this embodiment, an adjustment controller is installed on the motor housing 4. The adjustment controller is connected to the adjustment drive motor 7 and is used to output control signals to control the rotation direction and angle of the drive motor. This design optimizes the control of the drive adjustment motor, and a dedicated controller is set up to automatically and intelligently control the output drive action.

[0042] In the technical solution provided in this embodiment, the rotor assembly 1 is equipped with a speed sensor for measuring the motor speed and a pressure sensor for measuring the water pressure. Both the speed sensor and the pressure sensor are electrically connected to the regulating controller. The regulating controller provides feedback adjustment based on the acquired speed and pressure signals. This design, based on the aforementioned control of the drive motor via the central controller, further incorporates corresponding sensors. The pressure sensor and speed sensor acquire the pump motor's operating parameter signals in real time and transmit the acquired signals to the central controller. The central controller can then achieve accurate feedback control based on the acquired data signals.

[0043] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the scope of protection of this invention.

Claims

1. A canned motor device for a pump, comprising a motor housing (4) and a rotor assembly (1) and a stator assembly rotatably fitted within the motor housing (4), wherein the stator assembly has a hollow cylindrical structure, and the rotor assembly (1) is a shaft-like structure housed within the cavity of the stator assembly, characterized in that, The stator assembly includes multiple coil winding units (2) distributed along a circular array. Each coil winding unit (2) is supported and connected to the motor housing (4) through a winding bracket (3). The coil winding unit (2) and the winding bracket (3) are slidably engaged. The stator assembly also includes a stator adjustment mechanism that drives each coil winding unit (2) to move radially along the winding bracket (3). The output parameters of the motor are adjusted by changing the radial distance between each coil winding unit (2) and the rotor assembly (1). The winding support (3) includes a support body (3-1) in the shape of a cylindrical frame and multiple radial support groups that are equally spaced along the motor axis. Each radial support group includes multiple radial supports (3-2) that are distributed along the motor axis. The coil winding unit (2) is located between two radial supports (3-2) that are located in the same radial position and are axially adjacent. The inner side of the radial support (3-2) is provided with a groove structure (3-3) along the length direction of the radial support (3-2). The coil winding unit (2) includes a coil structure (2-1) and a unit support (2-2) for supporting the coil structure (2-1). The two ends of the outer side wall of the unit support (2-2) are symmetrically provided with slider structures (2-3). The slider structures (2-3) are accommodated in the groove structure (3-3) at the corresponding position, so that the coil winding unit (2) slides with the radial support (3-2).

2. The canned pump motor apparatus of claim 1, wherein, The inner sidewall of the slide groove structure (3-3) is provided with a conductive plate (5) along its length direction. The sidewall of the slider structure (2-3) is provided with a contact structure (2-4) that is electrically connected to the coil structure (2-1). The position of the contact structure (2-4) corresponds to the position of the conductive plate (5). During the relative sliding stroke of the slider structure (2-3) and the slide groove structure (3-3), the contact structure (2-4) and the conductive plate (5) maintain contact and cooperation.

3. The canned pump motor apparatus of claim 2, wherein, The radial bracket (3-2) and the bracket body (3-1) are provided with a hidden wire groove structure that connects to the location of the conductive plate (5). The hidden wire groove structure is used to connect and conduct the coil structure (2-1) of each coil winding unit (2).

4. The canned pump motor device according to claim 2, characterized in that, The stator adjustment mechanism includes an adjustment screw (6) with one end rotatably positioned and positioned axially with the motor housing (4), and an adjustment drive motor (7) for driving the adjustment screw (6) to rotate. The adjustment drive motor (7) is mounted on the motor housing (4). The adjustment screw (6) is arranged radially along the motor. The unit bracket (2-2) is provided with an adjustment screw hole arranged radially along the motor. The adjustment screw (6) and the adjustment screw hole cooperate with each other. The adjustment drive motor (7) drives the adjustment screw (6) to rotate, thereby driving the unit bracket (2-2) to move radially along the motor.

5. The canned pump motor apparatus of claim 4, wherein, The radial support (3-2) is provided with an elastic strip (8) at its end. The end of the elastic strip (8) abuts against the unit support (2-2). The elastic strip (8) provides elastic force to press the unit support (2-2) against the adjusting screw (6) to provide frictional force for radial positioning of the unit support (2-2).

6. The canned pump motor device according to claim 5, characterized in that, The output end of the regulating drive motor (7) is connected to a reduction gear set, and the regulating screw (6) is connected to the regulating drive motor (7) through the reduction gear set.

7. The canned pump motor apparatus of claim 6, wherein, An adjustment controller is installed on the motor housing (4). The adjustment controller is connected to the adjustment drive motor (7) and is used to output control signals to control the rotation direction and angle of the drive motor.

8. The canned pump motor apparatus of claim 7, wherein, The rotor assembly (1) is equipped with a speed sensor for measuring motor speed and a pressure sensor for measuring water pressure. Both the speed sensor and the pressure sensor are electrically connected to the regulating controller. The regulating controller adjusts by feedback based on the acquired speed and pressure signals.

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