DESC:MODULAR STATOR ASSEMBLY
CROSS REFERENCE TO RELATED APPLICATIONS
The present application claims priority from Indian Provisional Patent Application No. 202421020629 filed on 19/03/2024, the entirety of which is incorporated herein by a reference.
TECHNICAL FIELD
Generally, the present disclosure relates to a motor assembly. Particularly, the present disclosure relates to a modular stator assembly for a motor.
BACKGROUND
A robust stator assembly is crucial in today's world, as reliability, efficiency, and durability are paramount in motor-driven applications. With the growing demand for high-efficiency motors, a well-designed stator assembly ensures optimal energy conversion and minimal downtime. Such assemblies are essential for meeting the high-performance standards required by modern technologies, making them indispensable for today’s manufacturers.
Conventionally, the stator is constructed from stacked layers of thin, laminated sheets of steel, often silicon steel, to reduce energy losses caused by eddy currents. The laminations are pressed and wound into a cylindrical shape to form the stator core. Subsequently, the windings are manually or mechanically wound into the slots of the stator core. The construction of the core and windings enables the entire stator assembly to be mounted in a rigid frame or casing. The stator assembly’s frame is welded or bolted to secure the core and windings, ensuring that the components remain stationary during the motor operation. Consequently, the entire stator core acts as a single complete unit that performs the magnetic flux function for the rotor to rotate thereby producing the required mechanical energy.
However, there are certain problems associated with the existing or above-mentioned mechanism for the assembly of the stator in terms of manufacturing flexibility, maintenance, and customization. For instance, a rigid, one-piece construction of the stator makes it difficult to adjust or replace individual components without disassembling the entire motor, leading to longer repair times and higher maintenance costs. Additionally, as the stator is often custom-built for each motor design, modifications or upgrades require significant rework, which slows down production and reduces scalability. Further, the lack of modularity is not able to meet varying operational requirements, as changes in power output or design specifications necessitate the construction of an entirely new stator. Furthermore, the complex assembly process that involves multiple steps such as winding, curing, and mounting, increases the risk of human error, resulting in longer manufacturing times and quality control issues.
Therefore, there exists a need for a mechanism for the assembly of the stator that is flexible, safe, and overcomes one or more problems as mentioned above.
SUMMARY
An object of the present disclosure is to provide a retractable modular stator assembly for a motor with enhanced flexibility, adaptability, and easy maintainability that allows for customizable stator stack size and a simplified assembly process.
In accordance with an aspect of the present disclosure, there is provided a retractable modular stator assembly for a motor, the motor stator assembly comprises:
- a plurality of stator modules arranged, wherein each stator module from the plurality of stator modules comprises:
- a stator tooth; and
- a stator yoke, wherein the stator tooth and the stator yoke are configured to form a distorted L-shaped stator module,
wherein two consecutive stator modules from the plurality of stator modules are removably attached and configured to form a variable size stator assembly.
The retractable modular stator assembly for a motor, as described in the present disclosure, is advantageous in terms of providing a stator assembly with increased flexibility, faster assembly, and easier maintenance. Specifically, the modular design allows for the customization of stator stack size to meet specific motor requirements, making the stator assembly adaptable to various applications without the need for entirely new stators. Further, the removable connection between the stator modules simplifies repair and replacement, reducing downtime and maintenance costs. Additionally, the ability to adjust the stator configuration helps in optimizing motor performance, improving energy efficiency and thermal management.
Additional aspects, advantages, features, and objects of the present disclosure would be made apparent from the drawings and the detailed description of the illustrative embodiments constructed in conjunction with the appended claims that follow.
It will be appreciated that features of the present disclosure are susceptible to being combined in various combinations without departing from the scope of the present disclosure as defined by the appended claims.
BRIEF DESCRIPTION OF DRAWINGS
The summary above, as well as the following detailed description of illustrative embodiments, is better understood when read in conjunction with the appended drawings. For the purpose of illustrating the present disclosure, exemplary constructions of the disclosure are shown in the drawings. However, the present disclosure is not limited to specific methods and instrumentalities disclosed herein. Moreover, those in the art will understand that the drawings are not to scale. Wherever possible, like elements have been indicated by identical numbers.
Embodiments of the present disclosure will now be described, by way of example only, with reference to the following diagrams wherein:
Figure 1 illustrates a retractable modular stator assembly for a motor, in accordance with an embodiment of the present disclosure.
Figure 2 illustrates an exploded view of a stator module, in accordance with an embodiment of the present disclosure.
In the accompanying drawings, an underlined number is employed to represent an item over which the underlined number is positioned or an item to which the underlined number is adjacent. A non-underlined number relates to an item identified by a line linking the non-underlined number to the item. When a number is non-underlined and accompanied by an associated arrow, the non-underlined number is used to identify a general item at which the arrow is pointing.
DETAILED DESCRIPTION
The following detailed description illustrates embodiments of the present disclosure and ways in which they can be implemented. Although some modes of carrying out the present disclosure have been disclosed, those skilled in the art would recognize that other embodiments for carrying out or practicing the present disclosure are also possible.
As used herein, the terms “retractable modular stator assembly” and “stator assembly” are used interchangeably and refer to a stator configuration that allows the stator components to be extended or retracted. The modular design consists of multiple stator sections or modules that are connected or disconnected to form a complete stator. The retractable feature enables easier assembly, maintenance, and transportation by allowing parts of the stator to be adjusted or retracted. The design of the retractable modular stator assembly focuses on improving the efficiency and flexibility of the motor. Further, by allowing individual modules to be swapped, repaired, or upgraded without dismantling the entire stator, the modular assembly reduces downtime and operational interruptions. Additionally, the modularity enables customization in terms of the stator's physical and electrical properties, allowing the assembly to be optimized for various operational requirements.
As used herein, the term “motor” refers to any device or a machine that uses electrical energy to produce rotating motion or mechanical energy. The motor consists of a stator and a rotor. The flow of electrical current through the motor generates a magnetic field that turns the rotor, producing a mechanical movement. Various types of motors may include (but not limited to) DC shunt motors, DC series motors, AC induction motors, AC synchronous motors, and switched reluctance motors.
As used herein, the terms “stator module”, and “module” are used interchangeably and refer to an individual unit of the stator that is independently installed, removed, or replaced within a larger electrical machine, such as a motor. Each stator module includes components such as coils, windings, insulation, and the core material pre-assembled into a compact, standardized unit. The modules are designed to fit seamlessly together with other modules to form the complete stator structure. The modular approach allows for flexibility in design, easier maintenance, and cost-effective scaling of stator assemblies for different machine sizes or configurations.
As used herein, the terms “stator tooth” and “tooth” are used interchangeably and refer to individual magnetic poles or segments within the stator that interact with the rotor to generate rotational motion. In an electric motor, the stator is the stationary part that houses coils of wire, and the stator teeth are the protruding sections that hold the windings in place. The teeth are arranged around the inner circumference of the stator and are designed to form a precise pattern, allowing for an effective magnetic field to be generated. The design of the stator teeth is critical in determining the motor’s efficiency, torque, and overall performance. In a modular stator assembly, the modularity of the assembly allows for different configurations of stator teeth to be used depending on the desired performance characteristics, such as increased power output or reduced noise. The spacing, shape, and material of the stator teeth contribute to the motor performance.
As used herein, the term “stator yoke” refers to a structural component that forms the outer frame or housing of the stator, providing mechanical support for the stator's windings and core. The stator core is made from a high-strength, magnetic material such as, but not limited to steel or iron and serves to hold the stator windings in place and provide a path for the magnetic flux generated during operation. In a modular stator system, the yoke is designed to be part of the modular architecture, allowing for easy assembly and disassembly of individual stator modules while maintaining the integrity of the overall structure. The stator yoke helps to reduce the resistance to magnetic flux by offering low reluctance, which is essential for the effective functioning of electric motors. In modular systems, the stator yoke is designed to accommodate multiple stator modules, allowing for scalability and versatility in different applications.
As used herein, the term “L-shaped stator module” refers to a stator segment that is designed in the form of an "L," with two perpendicular arms that create a right-angle structure. The design is intended to optimize the use of space and facilitate the integration of stator windings within a compact motor assembly. The L-shaped configuration allows for efficient electromagnetic field generation, as the windings are more effectively arranged around the stator’s arms, maximizing the area in contact with the rotor. In a modular stator assembly, the L-shaped stator module offers the flexibility to combine multiple modules in different configurations, enabling customization for specific motor requirements.
As used herein, the term “front end” refers to a portion of the stator yoke that faces the external side of the yoke to engage with the subsequent stator yoke. The front end of the stator yoke comprises specific cutouts, flanges, or alignments that ensure the stator and rotor work efficiently together. In modular stator systems, the front end is crucial for maintaining the structural integrity of the assembly while providing easy access for installation or maintenance of the connected components. Further, as the modular stator assembly consists of multiple interchangeable modules, the front end is typically standardized to allow easy connection of the modules and smooth integration into the overall system. The modularity also allows for more streamlined maintenance and repair processes, as any module is replaced or serviced without disrupting the entire assembly.
As used herein, the term “central end” refers to a portion of the stator yoke that is located at the core or centre of the stator structure. The central end of the stator yoke plays a crucial role in the overall function of the motor, as it provides structural support and helps to focus the magnetic flux toward the rotor. In modular stator assemblies, the central end is designed for easy integration with other modular components, ensuring the stator maintains magnetic integrity while facilitating efficient motor operation. In a modular stator assembly, the central end of the stator yoke is designed to be interchangeable or adjustable, allowing for customization based on specific motor requirements. This modular design ensures that the central portion can be easily connected to other stator parts or components, such as the stator teeth or windings. The central end typically has features that enable it to securely hold these parts in place, helping to ensure optimal alignment and functionality.
As used herein, the term “tooth end” refers to a portion of the stator yoke that features the teeth or slots for the stator windings to be inserted. The teeth of the stator yoke are arranged in a circular pattern around the stator core to support the winding coils that generate the electromagnetic field when current flows through them. In modular stator assemblies, the tooth end of the yoke is designed to accommodate multiple modular stator modules, ensuring that each module aligns correctly within the assembly, allowing the machine to function optimally. The tooth end of the stator yoke is essential for maintaining the efficiency and performance of the electrical machine. In a modular system, the tooth end is specifically engineered for easy integration with other modules, offering flexibility and scalability.
As used herein, the term “circular configuration” refers to an arrangement of the stator’s magnetic core in a circular shape, as the stator module forms a ring-like structure around the motor's central axis. The circular design is integral in most electric motors, as it provides a uniform path for the magnetic flux, allowing it to be efficiently directed through the stator windings and toward the rotor. The circular yoke configuration ensures that the stator teeth holding the windings are evenly distributed around the perimeter, maximizing the effectiveness of the electromagnetic interaction between the stator and rotor. In a modular stator assembly, the circular configuration of the stator yoke allows for easy scalability and customization. The modular system incorporates multiple circular stator yokes, each designed to interlock or connect with others, enabling the assembly of motors with various power ratings or performance characteristics. The modular approach facilitates easier repairs, upgrades, and design flexibility, as individual yokes are swappable and adjustable to meet specific operational needs.
As used herein, the terms “removable interlocking mechanism” and “locking” are used interchangeably and refer to a mechanism designed to securely connect and detach the stator modules within the yoke while maintaining their alignment and mechanical integrity. The mechanism typically involves specialized interlocking features, such as clips, pins, or locking bolts, which allow each module to be easily attached or removed from the stator yoke. The removable nature of the interlocking system facilitates quick assembly, disassembly, and replacement of individual stator modules without disrupting the entire stator structure. In a modular stator design, the interlocking feature enhances flexibility, enabling the system to be customized or adapted to different operational needs. Furthermore, the interlocking feature ensures that the stator modules remain securely in place during operation, preventing misalignment or mechanical failure.
As used herein, the term “left protrusion” refers to an extension or outward projection that is positioned on the left side of the stator yoke structure. The protrusion typically serves as a mounting or alignment feature, helping to secure the stator yoke in place within the motor assembly. The left protrusion is designed to fit into corresponding components within the modular system, ensuring that the stator yoke is properly positioned for optimal performance. In some cases, the left protrusion is used to facilitate the connection of other modular parts, such as rotor shafts or other stator elements, contributing to the ease of assembly and maintenance. In the modular stator assembly, the left protrusion offers design flexibility, allowing for customization and easy integration of various motor components. The modular nature of the assembly ensures that the left protrusion is used across different motor sizes or designs, promoting both scalability and efficiency.
As used herein, the term “right protrusion” refers to a physical extension or outward projection located on the right side of the stator yoke structure. The protrusion is typically designed to provide a specific functional purpose, such as aligning with other components, accommodating mounting features, or facilitating the secure attachment of modules or external parts. In a modular stator system, the right protrusion might serve as a key feature for modular assembly, helping to ensure proper orientation and positioning of the stator components within the overall assembly. The design allows the stator to seamlessly integrate with other machinery or components, ensuring efficient performance and ease of maintenance. By providing a stable mounting point or interlocking feature, the protrusion ensures that the stator modules remain securely fixed during operation, even under high stresses. The design element helps to distribute mechanical loads evenly, minimizing the risk of misalignment or damage.
As used herein, the term “flexible snap-fit mechanism” refers to a feature that enables components of the stator yoke to be securely connected without the need for additional fasteners or tools. The mechanism typically involves interlocking features, such as, but not limited to, flexible tabs, clips, or ridges, that allow one part of the stator yoke to snap into place with another component. The flexibility of the snap-fit elements allows for easy assembly, as the parts can be pressed together, and the mechanism will hold them in place, providing a strong yet removable connection. The design minimizes the need for screws, bolts, or welding, streamlining the manufacturing and assembly process. The snap-fit connection is also tailored to accommodate varying loads and operational conditions, providing a reliable method to hold the stator yoke in position during motor operation.
As used herein, the term “opening position” refers to a specific configuration or alignment of the stator yoke that provides access to the internal components, such as the stator modules, windings, or core elements. The opening is designed to facilitate the insertion, removal, or adjustment of individual stator modules with the stator windings within the assembly. In a modular system, the opening position is crucial for ensuring that the stator is easily assembled or disassembled, enabling quick maintenance or module replacement without disturbing the entire system. The placement and size of the opening are designed to optimize accessibility while maintaining the structural integrity and efficiency of the stator yoke. Further, depending on the application, the opening position allows for better airflow or heat dissipation around the stator modules, which is essential for maintaining optimal performance during operation. The design of the opening also ensures that the modular stator components fit together precisely, maintaining the alignment necessary for generating effective magnetic fields.
As used herein, the term “closing position” refers a final position of the stator yoke to firmly secure the stator windings. The closing position is achieved through a mechanism such as, but not limited to, a snap-fit, bolts, or other fastening systems, ensuring that all parts of the stator are held in place and maintain proper alignment. The closing position is essential for ensuring that the stator yoke functions efficiently, as it provides a stable foundation for the stator windings and helps direct the magnetic flux correctly to interact with the rotor. In a modular stator assembly, the closing position of the stator yoke ensures the entire system remains modular and easily serviceable. The modular approach provides ease of maintenance, repair, and upgrading.
In accordance with an aspect of the present disclosure, there is provided a retractable modular stator assembly for a motor, the motor stator assembly comprises:
- a plurality of stator modules, wherein each stator module from the plurality of stator modules comprises:
- a stator tooth; and
- a stator yoke, wherein the stator tooth and the stator yoke are configured to form a distorted L-shaped stator module, and
wherein two consecutive stator modules from the plurality of stator modules are removably attached and configured to form a variable size stator assembly.
Referring to figure 1, in accordance with an embodiment, there is described a retractable modular stator assembly 100 for a motor. The motor stator assembly 100 comprises a plurality of stator modules 102. Each stator module 102A comprises a stator tooth 104 and a stator yoke 106, wherein the stator tooth 104 and the stator yoke 106 are configured to form a distorted L-shaped stator module. Further, two consecutive stator modules (102A, 120B) are removably attached and configured to form a variable size stator assembly.
The retractable modular stator assembly 100 for a motor provides flexibility in motor construction and maintenance. Specifically, each stator module 102A in the assembly 100 comprises a stator tooth 104 and a stator yoke 106, with the stator tooth 104 and yoke 106 configured in a distorted L-shape. The configuration allows for a compact and efficient layout of the stator components. The modular nature of the design ensures that each stator module 102A is individually replaced or adjusted, enabling ease of maintenance or customization based on the motor's specific requirements. The interconnection between consecutive stator modules 102A, 102B is designed to be removable, allowing the user to modify the stack height or configuration to meet different motor specifications. Further, the method for assembling and adjusting the stator stack involves aligning the stator modules 102A in a series, as two consecutive modules 102A, 102B are removably attached to form a variable-size stator assembly. The removable attachment is achieved through interlocking mechanisms, such as (but not limited to) snap-fit features, that securely hold the stator module 102A in place and still allow easy separation or reconfiguration. The flexibility in stack size adjustment ensures that the motor is tailored to various operational conditions or design requirements, providing a significant advantage in applications needing space or power output. Furthermore, the ability to adjust the stator stack size allows for the optimization of the magnetic field and the accommodation of varying numbers of windings or different cooling configurations, depending on the specific motor application. The above-mentioned adaptability leads to improved power efficiency, reduced size, and better heat dissipation, making the stator assembly more versatile and cost-effective. Advantageously, the modularity provides easier maintenance, as individual modules swapping out for repair or upgrades is simpler.
Referring to figure 2, in accordance with an embodiment, there is described the stator yoke 106 comprising a front end 108, a central end 110, and a tooth end 112. Further, the stator tooth 104 comprises, at the tooth end 112, a left protrusion 114 and a right protrusion 116. Furthermore, the stator yoke 108, at the tooth end 112, forms an opening position 118 and a closing position 120 in combination with the left protrusion 114 and the right protrusion 116. The stator yoke 106 serves as the magnetic core that supports the stator windings 122 and helps in the formation of the magnetic field required for the stator’s operation. The front end 108 of the yoke 106 typically connects to motor housing and provides structural integrity, and the central end serves as the core connecting the rotor and the subsequent stator. The tooth end 112 comprises projections (teeth) that are evenly spaced around the yoke and house the stator windings 122. The windings, when energized, create a rotating magnetic field that induces current in the rotor, enabling the motor to function. The construction of the yoke 106 and the arrangement of the teeth play a significant role in the motor's performance, influencing magnetic flux distribution, efficiency, and cooling characteristics. The L-shaped design of the stator yoke 106 improves the magnetic flux and minimizes losses due to eddy currents, enhancing the overall efficiency of the motor. Further, methods for optimizing the stator yoke 106 include selecting high-quality materials such as silicon steel to reduce core losses, and advanced manufacturing techniques such as lamination to mitigate eddy current formation. The advantages include better power output, reduced operational heat, increased lifespan, and lower overall energy consumption, leading to a more sustainable and cost-effective motor.
In an embodiment, the front end 108 of each stator yoke 106 is joined to the central end 110 of a subsequent stator yoke 106 to form a circular configuration. In a modular stator design, the front end 108 of each stator yoke 106 is joined to the central end 110 of a subsequent stator yoke 106 to form a continuous, circular configuration. The arrangement ensures a stable, cohesive structure that helps distribute the magnetic field evenly around the entire motor. Further, the connection between each stator yoke's 106 front end 108 and the central end 110 of the next is made through precise joining techniques such as welding, bolting, or using mechanical interlocking systems. The circular configuration allows the stator yokes 106 to form a complete magnetic path, as it enhances the efficiency of the magnetic flux flow between the rotor and the stator. The seamless connection between yokes 106 reduces gaps in the magnetic circuit, improving the overall performance of the motor by minimizing losses due to leakage flux and providing consistent magnetic interaction throughout the rotation cycle. Furthermore, the arrangement also allows for better heat distribution throughout the motor, as the uniform structure helps in effective cooling. The advantages of the modular circular stator yoke 106 configuration include enhanced mechanical stability, reduced vibration, and improved electromagnetic efficiency. Moreover, the modular approach leads to easier maintenance and replacement of individual yokes, reducing downtime and costs.
In an embodiment, the front end 108 of each stator yoke 106 is joined to the central end 110 of the subsequent stator yoke 106 via a removable interlocking mechanism. In the stator design featuring the removable interlocking mechanism, the front end 108 of each stator yoke 106 is securely joined to the central end 110 of a subsequent stator yoke 106. The interlocking mechanism typically involves features, such as grooves, pins, or clips, that allow each yoke 106 to lock into the next one, ensuring a firm, stable connection and still allowing for disassembly when needed. The connection is particularly advantageous for ease of maintenance and assembly, as it allows each stator yoke 106 to be independently replaced or serviced without the need for complex disassembly of the entire stator core. The removable interlocking mechanism also enables the yokes 106 to be aligned precisely, ensuring a uniform magnetic circuit and reducing the risk of misalignment or excessive mechanical strain. The interlocks are designed to hold the yokes 106 securely in place while preventing unwanted movement or vibration during operation.
In an embodiment, the stator tooth 104 comprises, at the tooth end 112, a left protrusion 114 and a right protrusion 116. The left 114 and right protrusions 116 form interlock with adjacent components, such as the stator core or yoke 106, ensuring a secure and stable structure. The design helps in precisely aligning the stator tooth 104 within the stator assembly 100 and maintains the correct spacing and angular alignment between the stator windings 122 and the rotor. The protrusions at the tooth end 104 also provide mechanical stability, preventing any unwanted displacement or misalignment during motor operation. By interlocking the stator tooth 104 with the yoke 106 or other stator components, the design reduces mechanical stress and vibration during operation, which contributes to quieter and more reliable performance. The protrusions are achieved via various processes including (but not limited to) precision casting, machining, or molding, ensuring that each tooth is shaped with accuracy and consistency. The advantages of the design include improved magnetic flux distribution, as the teeth are positioned relative to one another, reducing losses and improving the motor's overall efficiency. Additionally, the interlocking protrusions make the assembly process easier and ensure that the stator remains intact and reliable over the long term, with a reduced risk of misalignment and mechanical failure.
In an embodiment, a left protrusion 114 and a right protrusion 116 are configured to form a flexible snap-fit mechanism. The left 114 and right protrusions 116 of the stator tooth 104, configured to form a flexible snap-fit mechanism, work together to create a secure and easily detachable connection between the stator components. The flexible snap-fit mechanism involves the precise design of the protrusions, allowing the tooth 104 to flex and interlock with the corresponding central end 110 of the stator module 102. Specifically, when the protrusions are brought together, the left 114 and right protrusions 116 engage with one another, causing the material to slightly deform and lock into place. The snap-fit engagement ensures a tight and stable connection without the need for additional fasteners, such as bolts or screws, which streamlines the assembly process and reduces additional part count. The flexibility of the mechanism also allows for easy disassembly or reassembly when maintenance or repairs are required, as the protrusions are disengaged by applying a controlled force, which returns them to their original position without damage. The method of producing the snap fit mechanism involves materials with inherent flexibility and durability, which deform under pressure and return to their original form without losing integrity. The snap-fit system reduces assembly time by eliminating the need for separate fasteners or tools, lowers manufacturing costs, and simplifies the design of the stator. Additionally, the snap-fit mechanism ensures a strong, reliable connection that resists vibration and mechanical stress during operation.
In an embodiment, the stator yoke 106, at the tooth end 112, forms an opening position 118 and a closing position 120 in combination with the left protrusion 114 and the right protrusion 116. In the opening position 118, the left 114 and right protrusions 116 are aligned with the respective openings or slots in the stator yoke 106, allowing the two components to be easily connected or disconnected. Further, during assembling, the protrusions are positioned in the opening position 118, and as the parts are brought together, the protrusions flex and slide into the closing position 120. Consequently, the protrusions snap into place, locking the stator yoke 106 securely with the stator tooth 104. The closing position 120 ensures a stable, tight connection between the yoke 106 and the tooth 104 while minimizing the risk of misalignment. As the protrusions are engaged, the snap-fit mechanism holds the parts firmly in place, providing structural integrity without the need for additional fasteners. The opening 118 and closing positions 120 ensure that the components are aligned with minimal effort and are securely locked into place, reducing the possibility of mechanical failure due to loose connections. The advantages of the above-mentioned mechanism include faster assembly times, lower production costs, and fewer parts required, as the snap-fit design eliminates the need for bolts, screws, or welding.
In an embodiment, the left protrusion 114 and right protrusion 116 are configured to move from the opening position 118 to the closed position 120 to adjust the spacing of the stator module 102 to accommodate a stator winding 122. In the stator design, the left 114 and right protrusions 116 are configured to move from an opening position 118 to a closing position 120, allowing for precise adjustment of the spacing between stator components to accommodate the stator winding 122. In the opening position 118, the protrusions are aligned to form a wider gap between the stator tooth 104 and the stator yoke 106, allowing for easier insertion or adjustment of the stator winding 122. Subsequently, as the winding 122 is properly placed, the left 114 and right protrusions 116 are moved to the closing position 118 and locked into place, reducing the gap and securing the stator tooth 104 and yoke 106 tightly together. The movement from the opening 118 to closing position 120 enables the stator module 102A to adapt to different winding configurations, ensuring that the winding fits precisely and is held in place, which is crucial for maintaining consistent electrical performance and reducing potential mechanical stresses. The method involves the use of flexible materials for the protrusions, allowing them to move smoothly between positions, and mechanical features such as grooves or slots to guide and lock them into the closed position. The advantages of the above-mentioned approach include enhanced efficiency in the assembly process, as the stator winding is easily adjusted to the optimal position, improving the overall motor performance. Additionally, this adjustable spacing minimizes the risk of misalignment during winding placement, ensuring a more uniform and consistent magnetic field.
Based on the above-mentioned embodiments, the present disclosure provides significant advantages such as (but not limited to) increased flexibility, faster assembly, and easier maintenance. Further, the present disclosure provides the modular design allowing for the customization of stator stack size to meet specific motor requirements, simplifying repair and replacement, and reducing downtime and maintenance costs.
In the description of the present invention, it is also to be noted that, unless otherwise explicitly specified or limited, the terms “disposed,” “mounted,” and “connected” are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected, either mechanically or electrically. They may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Modifications to embodiments and combinations of different embodiments of the present disclosure described in the foregoing are possible without departing from the scope of the present disclosure as defined by the accompanying claims. Expressions such as “including”, “comprising”, “incorporating”, “have”, and “is” used to describe and claim the present disclosure are intended to be construed in a non-exclusive manner, namely allowing for items, components or elements not explicitly described also to be present. Reference to the singular is also to be construed to relate to the plural where appropriate.
Although embodiments have been described with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More particularly, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the present disclosure, the drawings, and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, alternative uses will also be apparent to those skilled in the art.
,CLAIMS:WE CLAIM:
1. A retractable modular stator assembly (100) for a motor, the motor stator assembly (100) comprises:
- a plurality of stator modules (102), wherein each stator module (102A) from the plurality of stator modules (102) comprises:
- a stator tooth (104); and
- a stator yoke (106), wherein the stator tooth (104) and the stator yoke (106) are configured to form a distorted L-shaped stator module,
wherein two consecutive stator modules (102A, 102B) are removably attached and configured to form a variable size stator stack.

2. The motor stator assembly (100) as claimed in claim 1, wherein the stator yoke (106) comprises a front end (108), a central end (110), and a tooth end (112).

3. The motor stator assembly (100) as claimed in claim 1, wherein the front end (108) of each stator yoke (106) is joined to the central end (110) of a subsequent stator yoke (106) to form a circular configuration.

4. The motor stator assembly (100) as claimed in claim 1, wherein the front end (108) of each stator yoke (106) is joined to the central end (110) of the subsequent stator yoke (106) via a removable interlocking mechanism.

5. The motor stator assembly (100) as claimed in claim 1, wherein the stator tooth (104) comprises, at the tooth end (112), a left protrusion (114) and a right protrusion (116).

6. The motor stator assembly (100) as claimed in claim 5, wherein a left protrusion (114) and a right protrusion (116) are configured to form a flexible snap-fit mechanism.

7. The motor stator assembly (100) as claimed in claim 1, wherein the stator yoke (108), at the tooth end (112), forms an opening position (118) and a closing position (120) in combination with the left protrusion (114) and the right protrusion (116).

8. The motor stator assembly (100) as claimed in claim 1, wherein the left protrusion (114) and right protrusion (116) are configured to move from the opening position (118) to the closed position (120) to adjust the spacing of the stator module (102) to accommodate a stator winding (122).