Split split block stator, split block motor and compressor

Abstract

The invention provides a split type split block stator, a split block type motor and a compressor, and belongs to the technical field of split block type motors. The split type split block stator comprises a stator yoke part which comprises an annular wall and a plurality of limiting bulges arranged on the annular wall at intervals; the stator shell is arranged on the outer side of the stator yoke part in a surrounding manner; the stator cushion blocks are arranged at intervals in the circumferential direction of the stator shell, and grooves are formed in the two sides of the ends, facing the stator yoke part, of the stator cushion blocks; and the stator tooth parts are arranged between the stator yoke part and the stator cushion blocks at intervals, first stator teeth of the stator tooth parts are clamped in the first mounting grooves between the adjacent limiting bulges, second stator teeth of the stator tooth parts are clamped in the second mounting grooves between the grooves of the adjacent stator cushion blocks, and gaps are formed between the second stator teeth and the stator shell. According to the scheme provided by the invention, the structural design is reasonable, and direct contact between the stator tooth part and the stator shell can be avoided, so that the risk of extrusion deformation of the stator tooth part is reduced, the production process is simplified, and the reliability is improved.

Description

Technical Field

[0001] This invention belongs to the field of modular motor technology, specifically relating to a segmented modular stator, a modular motor, and a compressor. Background Technology

[0002] Modular motors are widely used in the motor industry due to their advantages such as convenient winding, high slot fill factor, small stator end winding volume, low copper loss, and small torque ripple. The stator of a modular motor is composed of multiple independent modules. Its manufacturing process typically includes: pre-winding enameled copper wire onto segmented iron core modules to form stator units with windings, and then assembling these stator units into a ring structure according to the design sequence.

[0003] In traditional processes, adjacent modules need to be fixed by laser welding to form a complete annular stator. However, this method has significant drawbacks: on the one hand, the welding process relies on specialized equipment (such as laser welding machines), increasing equipment investment and maintenance costs; on the other hand, the welding operation requires precise alignment and heat control, which is highly complex, and potential defects in the weld quality may affect the long-term reliability of the stator. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of the aforementioned technologies by proposing a segmented modular stator, a modular motor, and a compressor, aiming to solve the problems of complex assembly processes, low assembly accuracy, low slot fill factor, and high processing costs associated with existing segmented modular stators.

[0005] This invention provides a segmented modular stator, comprising: The stator yoke includes an annular wall and a plurality of limiting protrusions spaced circumferentially on the outer circumferential surface of the annular wall, with a first mounting groove formed between adjacent limiting protrusions; The stator housing surrounds the outside of the stator yoke; Stator pads, multiple stator pads are circumferentially spaced along the inner circumferential surface of the stator housing, and the stator pads have grooves on both sides of one end facing the stator yoke, and a second mounting groove corresponding to the first mounting groove is formed between the grooves of adjacent stator pads. The stator teeth are spaced apart between the stator yoke and the stator pad. Each stator tooth includes a first stator tooth and a second stator tooth that are oppositely disposed at their radial ends. The first stator tooth engages with a first mounting groove, the second stator tooth engages with a second mounting groove, and a gap is formed between the second stator tooth and the stator housing.

[0006] Furthermore, the outer circumferential surface of the ring wall protrudes radially outward to form a limiting protrusion, and the two sides of the limiting protrusion are recessed inward to form a first limiting groove; toothed shoes are formed on both sides of the end of the first stator tooth, and the toothed shoes are engaged in the first limiting groove.

[0007] Furthermore, the stator tooth portion also includes a stator slot located between the first stator tooth and the second stator tooth, the stator slot being recessed inward to form a recessed portion for winding the coil winding.

[0008] Furthermore, the stator teeth and stator pads, and the tooth shoe and the first limiting groove are bonded together with adhesive.

[0009] Furthermore, the limiting protrusion is integrally formed on the ring wall; the groove is integrally formed on the stator pad; the first stator tooth, the second stator tooth, and the tooth shoe are integrally formed on the stator tooth portion.

[0010] Furthermore, the stator yoke / stator pad / stator tooth includes a plurality of magnetic conductive sheets stacked along the extending direction of the stator yoke / stator pad / stator tooth; or, the stator yoke / stator pad / stator tooth is die-cast from magnetic material powder.

[0011] Furthermore, the magnetic sheet has an integrally formed iron core fastener, with the iron core fastener protruding on one side of the magnetic sheet to form a raised portion and recessed on the other side of the magnetic sheet to form a recessed portion; the iron core fastener is located at the geometric center of the magnetic sheet, or multiple iron core fasteners are evenly distributed on the magnetic sheet.

[0012] Furthermore, the stator tooth section also includes a modular skeleton, which is fitted to a magnetic sheet on one side of the stator tooth section. The modular skeleton has a protruding structure extending along the stacking direction of the magnetic sheet. The magnetic sheet has a skeleton fastening point adapted to the protruding structure, and the protruding structure passes through the skeleton fastening point.

[0013] Furthermore, a limiting structure is provided at the bottom of the first stator tooth and the bottom of the second stator tooth. The limiting structure is used to cooperate with the stacking tooling of the stacked magnetic sheets.

[0014] Furthermore, the limiting structure at the bottom of the first stator tooth is a splicing groove, and the limiting structure at the bottom of the second stator tooth is a second limiting groove; the splicing groove and the second limiting groove have the same shape and size, and are integrally formed on the stator tooth.

[0015] Furthermore, the bottom of the first mounting groove protrudes radially outward to form a splicing protrusion of the protrusion portion. The splicing protrusion is integrally formed on the ring wall and is adapted to engage with the splicing groove. The splicing protrusion and the limiting protrusion are alternately arranged at intervals.

[0016] Accordingly, the present invention also provides a modular motor, including a rotor and a segmented modular stator provided in the first aspect embodiment, wherein the rotor is disposed within the stator yoke of the segmented modular stator.

[0017] Accordingly, the present invention also provides a compressor, including the modular motor provided in the second aspect embodiment.

[0018] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: A segmented modular stator, comprising: The stator yoke includes an annular wall and a plurality of limiting protrusions spaced circumferentially on the outer circumferential surface of the annular wall, with a first mounting groove formed between adjacent limiting protrusions; The stator housing surrounds the outside of the stator yoke; Stator pads, multiple stator pads are circumferentially spaced along the inner circumferential surface of the stator housing, and the stator pads have grooves on both sides of one end facing the stator yoke, and a second mounting groove corresponding to the first mounting groove is formed between the grooves of adjacent stator pads. The stator teeth are spaced apart between the stator yoke and the stator pad. Each stator tooth includes a first stator tooth and a second stator tooth that are oppositely disposed at their radial ends. The first stator tooth engages with a first mounting groove, and the second stator tooth engages with a second mounting groove. A gap is formed between the second stator tooth and the stator housing to avoid direct contact between the stator teeth and the stator housing, thereby reducing the risk of extrusion deformation of the stator teeth, simplifying the production process of the segmented stator, and improving reliability.

[0019] Among them, the stator yoke, stator housing, stator pad, and stator teeth are all integrated structures. When hot-fitting the modular motor, the compression of the stator housing makes the stator teeth and stator yoke fit more tightly, while avoiding the deformation of the stator teeth caused by direct compression of the stator housing, thus reducing the assembly failure rate.

[0020] Among them, the stator teeth and stator pads, the tooth shoe and the first limiting groove, and the splicing protrusion and splicing groove are bonded with adhesive, which can save the equipment cost when using welding process.

[0021] The first and second stator teeth are equipped with limiting structures at their bottoms. These structures cooperate with the stacking fixtures during the stacking of magnetic conductive sheets and with the assembly fixtures during the assembly of the segmented stator blocks, ensuring the structural stability of the stator teeth. Furthermore, this facilitates the removal of damaged stator teeth along the central axis of the stator housing, avoiding the need to replace the entire unit and reducing silicon steel loss. Attached Figure Description

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0023] The present invention will be further described below with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of a segmented modular stator according to the present invention; Figure 2 This is a schematic diagram of the structure of the stator yoke, stator pad, and stator teeth of the present invention; Figure 3This is a schematic diagram of the stator yoke of the present invention; Figure 4 This is a schematic diagram of the stator teeth of the present invention; Figure 5 This is a schematic diagram of the stator pad block of the present invention.

[0024] In the figure: 1 Stator yoke, 11 Ring wall, 12 Limiting protrusion, 13 Splicing protrusion, 2 Stator shell, 3 Stator pad, 31 Groove, 4 Stator tooth, 41 First stator tooth, 411 Tooth shoe, 412 Splicing groove, 42 Second stator tooth, 421 Second limiting groove, 43 Stator slot, 44 Coil winding, 51 Core fastening point, 52 Skeleton fastening point. Detailed Implementation

[0025] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0026] Throughout the specification and claims, the following terms will have at least the meaning explicitly associated herein, unless the context otherwise requires. The meanings defined below are not intended to limit the terms, but are merely illustrative examples.

[0027] In the description of this invention, the phrase "in one embodiment" does not necessarily refer to the same embodiment, although it may refer to the same embodiment. Similarly, the phrase "in some embodiments," as used herein, does not necessarily refer to the same embodiment when used multiple times, although it may refer to the same embodiment. As used herein, the term "or" is an inclusive "or" operator and is equivalent to the term "and / or," unless the context clearly specifies otherwise. The term "based on" is not exclusive and allows for reliance on additional factors not described, unless the context clearly specifies otherwise. The word "exemplary" herein means "serving as an example, instance, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior to or better than other embodiments. The scope of this invention is limited only by the scope of the appended claims, and any examples set forth in this specification are not intended to be limiting, but merely illustrate some of the many possible embodiments of the claimed invention. The various embodiments provided in this invention should not be construed as limiting the scope of protection of this invention.

[0028] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and 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 this invention.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] This invention addresses the problems of complex assembly process, low assembly accuracy, low slot fill factor, and high processing cost of existing segmented modular stators by providing a segmented modular stator, modular motor, and compressor.

[0033] like Figures 1 to 5As shown, this embodiment of the invention provides a segmented modular stator, including a stator yoke 1, a stator housing 2, stator pads 3, and stator teeth 4. The stator yoke 1 includes an annular wall 11 and a plurality of circumferentially spaced limiting protrusions 12 on the outer circumferential surface of the annular wall 11, with a first mounting groove formed between adjacent limiting protrusions 12. The stator housing 2 surrounds the outer side of the stator yoke 1. A plurality of stator pads 3 are circumferentially spaced along the inner circumferential surface of the stator housing 2. Grooves 31 are provided on both sides of the end of the stator pads 3 facing the stator yoke 1, and a second mounting groove corresponding to the first mounting groove is formed between the grooves 31 of adjacent stator pads 3. Multiple stator teeth 4 are spaced apart between the stator yoke 1 and the stator pad 3. Each stator tooth 4 includes a first stator tooth 41 and a second stator tooth 42 that are oppositely disposed at their radial ends. The first stator tooth 41 is engaged in the first mounting groove, and the second stator tooth 42 is engaged in the second mounting groove. A gap is formed between the second stator tooth 42 and the stator housing 2.

[0034] Specifically, the stator yoke 1 includes an annular wall 11 and a plurality of limiting protrusions 12 spaced circumferentially on the outer circumferential surface of the annular wall 11. A first mounting groove is formed between adjacent limiting protrusions 12 for mounting the first stator tooth 41 at one end of the stator tooth 4. The stator housing 2 surrounds the outside of the stator yoke 1. A plurality of stator pads 3 are spaced circumferentially along the inner circumferential surface of the stator housing 2. The stator pads 3 have grooves 31 on both sides of one end facing the stator yoke 1, so that a second mounting groove corresponding to the first mounting groove is formed between the grooves 31 of adjacent stator pads 3 for mounting the second stator tooth 42 at the other end of the stator tooth 4.

[0035] The first stator tooth 41 is installed in the first mounting groove and engaged with the limiting protrusions 12 on both sides; the second stator tooth 42 is installed in the second mounting groove and engaged with the grooves 31 on the stator pads 3 on both sides. This allows the stator tooth 4 to be installed between the stator yoke 1 and the stator housing 2. This connection method does not require the stator teeth 4 to be spliced ​​together or to be used with welding equipment, thereby simplifying the winding and assembly process of the segmented block stator and reducing costs.

[0036] The shape of the second mounting groove matches the shape of the second stator tooth 42, so that when multiple stator teeth 4 are spaced apart between the stator yoke 1 and the stator pad 3, a gap is formed between the second stator tooth 42 and the stator housing 2, avoiding direct contact between the stator tooth 4 and the stator housing 2, thereby reducing the risk of the stator tooth 4 being squeezed and deformed, simplifying the production process of the segmented block stator, and improving reliability.

[0037] The number of limiting protrusions 12, stator pads 3, first mounting slots, second mounting slots and stator teeth 4 are the same, so that the first stator teeth 41 of each stator tooth 4 are installed in the first mounting slot and the second stator teeth 42 are installed in the second mounting slot. Furthermore, a stator tooth 4 is installed between each corresponding first mounting slot and second mounting slot, forming a complete segmented block stator.

[0038] Preferably, in combination with the above schemes, such as Figure 1 , Figure 2 and Figure 4 As shown, in one embodiment of the present invention, the outer peripheral surface of the ring wall 11 protrudes radially outward to form a limiting protrusion 12, and the two sides of the limiting protrusion 12 are recessed inward to form a first limiting groove; toothed shoes 411 are formed on both sides of the end of the first stator tooth 41, and the toothed shoes 411 are engaged in the first limiting groove.

[0039] Specifically, the outer circumferential surface of the annular wall 11 is integrally formed with multiple outwardly protruding limiting protrusions 12 along the radial direction, and the two sides of the limiting protrusions 12 are recessed inward to form a first limiting groove. Toothed shoes 411 are formed on both sides of the end of the first stator tooth 41. The toothed shoes 411 are engaged in the first limiting groove, thereby connecting the stator tooth 4 to the outside of the annular wall 11 of the stator yoke 1, and engaging and fixing it between adjacent limiting protrusions 12.

[0040] Preferably, in combination with the above schemes, such as Figure 2 and Figure 3 As shown, in one embodiment of the present invention, the stator tooth portion 4 further includes a stator groove 43 located between the first stator tooth 41 and the second stator tooth 42. The stator groove 43 is recessed inward to form a recessed portion for winding the coil winding 44.

[0041] The stator slot 43 located between the first stator tooth 41 and the second stator tooth 42 is recessed inward to form a recessed portion. The coil winding 44 is wound in the recessed portion, which can increase the space for winding the coil winding 44, thereby improving the slot fill factor of the segmented block stator, reducing the copper loss of the block motor, and optimizing the performance of the block motor.

[0042] Preferably, in combination with the above scheme, as an embodiment of the present invention, the stator tooth 4 and the stator pad 3, and the tooth shoe 411 and the first limiting groove are bonded together with adhesive.

[0043] Specifically, adhesive is used to bond the stator teeth 4 and the stator pad 3, and the tooth shoe 411 and the first limiting groove, replacing the welding process. This saves the cost of welding equipment when producing segmented modular stators. Preferably, epoxy resin is used as the adhesive, which has high bonding strength.

[0044] Preferably, in combination with the above schemes, such as Figure 4As shown, in one embodiment of the present invention, the limiting protrusion 12 is integrally formed on the annular wall 11; the groove 31 is integrally formed on the stator pad 3; the first stator tooth 41, the second stator tooth 42 and the tooth shoe 411 are integrally formed on the stator tooth portion 4.

[0045] The stator yoke 1, stator housing 2, stator pad 3, and stator teeth 4 of the present invention are all integral structures. The stator teeth 4 are disposed between the stator yoke 1 and the stator pad 3. When the modular motor is assembled by heat fitting, the compression of the stator housing 2 makes the stator teeth 4 and the stator yoke 1 more tightly connected. At the same time, it avoids the stator housing 2 directly compressing the stator teeth 4 and causing deformation of the stator teeth 4. This ensures that the air gap between the segmented modular stator and the rotor maintains a small tolerance, improves the performance of the modular motor, and reduces the assembly failure rate.

[0046] Specifically, when assembling a modular motor, the stator assembly needs to be heat-fitted into the motor housing. During this process, the housing exerts a radially inward compressive force on the stator assembly. The welds in conventional modular motors are typically located on the outer circumference of the stator assembly. Quality issues with these welds during heat fitting can significantly impact the stability of the modular motor. In this invention, both the stator yoke 1 and the stator housing 2 are integral structures. The stator teeth 4 are positioned between the stator yoke 1 and the stator pad 3, and are connected to both. During the heat fitting process, the compression of the stator housing 2 ensures a tighter connection between the stator teeth 4 and the stator yoke 1.

[0047] Furthermore, the inner diameter of conventional modular motors typically relies on welding fixtures and a fixed shaft to ensure the perpendicularity of the teeth, resulting in extremely high requirements for the precision of the fixtures. This invention can ensure the precision of the inner diameter of the ring wall 11 (i.e., the inner diameter of the segmented modular stator) even without the welding fixtures, avoiding assembly errors in the modular ring wall 11 that could affect the assembly of the rotor.

[0048] The thickness of the stator yoke 1 is not limited here; it can be adjusted according to the inner diameter of the segmented stator. The greater the thickness of the stator yoke 1, the more stable it is, and the more it can reduce the impact of hot-fitting extrusion on the accuracy of the inner diameter of the segmented stator.

[0049] Preferably, in conjunction with the above scheme, as an embodiment of the present invention, the stator yoke 1 / stator pad 3 / stator tooth 4 includes a plurality of magnetic conductive sheets stacked along the extending direction of the stator yoke 1 / stator pad 3 / stator tooth 4; or, the stator yoke 1 / stator pad 3 / stator tooth 4 is die-cast from magnetic material powder.

[0050] Specifically, in some possible embodiments, the stator yoke 1 is formed by stacking a first type of magnetic sheet along the extending direction of the stator yoke 1, the stator pad 3 is formed by stacking a second type of magnetic sheet along the extending direction of the stator yoke 1, and the stator tooth 4 is formed by stacking a third type of magnetic sheet along the extending direction of the stator yoke 1. Furthermore, the different types of magnetic sheets correspond to the shapes of the stator yoke 1, stator pad 3, and stator tooth 4 respectively, avoiding splicing in directions other than the stacking direction. This prevents excessive seams in the magnetic circuit direction, which could lead to increased iron loss, thereby improving utilization and efficiency of the modular motor.

[0051] Preferably, cold-rolled silicon steel sheets are used as magnetic conductive sheets.

[0052] In other embodiments, the stator yoke 1 / stator pad 3 / stator tooth 4 is die-cast from magnetic material powder, and after further processing, it forms the specific structures such as the stator yoke 1 / stator pad 3 / stator tooth 4 in the above embodiments.

[0053] Preferably, in combination with the above schemes, such as Figures 1 to 5 As shown, in one embodiment of the present invention, an iron core fastener 51 is integrally formed on the magnetic sheet. The iron core fastener 51 protrudes on one side of the magnetic sheet to form a protrusion and is recessed on the other side of the magnetic sheet to form a recess.

[0054] Specifically, the iron core fastening point 51 is a commonly used mating method when stacking magnetic sheets. The iron core fastening point 51 is integrally formed on the magnetic sheet. The iron core fastening point 51 has a raised part on one side of the surface facing the magnetic sheet and a recessed part on the other side of the surface facing the magnetic sheet. Adjacent magnetic sheets are positioned and pressed together by the iron core fastening point 51 to achieve a tight connection, forming a complete stator yoke 1 / stator pad 3 / stator tooth 4.

[0055] Among them, the iron core fastening point 51 is located at the geometric center of the magnetic sheet, or multiple iron core fastening points 51 are evenly distributed on the magnetic sheet.

[0056] Specifically, the core fastening points 51 on the magnetic sheet constituting the stator yoke 1 are evenly distributed along the circumference of the stator yoke 1 on the magnetic sheet constituting the stator yoke 1; the core fastening points 51 on the magnetic sheet constituting the stator pad 3 are located at the geometric center of the magnetic sheet constituting the stator pad 3; the core fastening points 51 on the magnetic sheet constituting the stator tooth 4 are located at the geometric center of the magnetic sheet constituting the stator tooth 4, and are located in the coverage area of ​​the coil winding 44 on the stator tooth 4.

[0057] Preferably, in combination with the above schemes, such as Figures 1 to 2As shown, in one embodiment of the present invention, the stator tooth portion 4 further includes a modular skeleton, which is attached to a magnetic sheet on one side of the stator tooth portion 4. The modular skeleton has a protruding structure extending along the stacking direction of the magnetic sheet. The magnetic sheet has a skeleton fastening point 52 adapted to the protruding structure, and the protruding structure passes through the skeleton fastening point 52.

[0058] Specifically, the modular skeleton is provided with a protruding structure extending along the stacking direction of the magnetic sheet, and the magnetic sheet is provided with a skeleton fastening point 52 adapted to the protruding structure. The protruding structure passes through the skeleton fastening point 52, thereby ensuring that the stator tooth 4 formed by the stacking of the magnetic sheet can maintain a stable and complete structure when the coil winding 44 is wound into the stator tooth 4.

[0059] Preferably, in combination with the above schemes, such as Figures 1 to 2 As shown, in one embodiment of the present invention, the bottom of the first stator tooth 41 and the bottom of the second stator tooth 42 are provided with a limiting structure, which is used to cooperate with the stacking tooling of the stacked magnetic sheets.

[0060] Specifically, the bottom of the first stator tooth 41 and the second stator tooth 42 is provided with a limiting structure. When the magnetic conductive sheet is stacked to form the stator tooth 4, the structure of the stator tooth 4 can be kept stable during the stacking process by using the limiting structure at the bottom of the first stator tooth 41 and the second stator tooth 42 with the stacking tooling.

[0061] Understandably, since the stator teeth 4 are bonded to the stator yoke 1 and the stator pad 3 with adhesive, and the bottom of the first stator teeth 41 and the second stator teeth 42 are provided with limiting structures, the assembly process of the segmented modular stator does not require complex special equipment and tooling, making the operation simpler.

[0062] Furthermore, if a portion of the stator teeth 4 of the segmented stator is damaged, since adjacent stator teeth 4 are not interconnected, the segmented stator can be repaired by replacing a single stator tooth 4. Specifically, by using a tooling clamping device at the bottom of the first stator tooth 41 and the second stator tooth 42, the damaged stator tooth 4 can be removed along the central axis of the stator housing 2, thereby avoiding the need to replace the entire machine, reducing silicon steel consumption, and saving costs.

[0063] Preferably, in combination with the above schemes, such as Figures 1 to 2 As shown in the figure, in one embodiment of the present invention, the limiting structure at the bottom of the first stator tooth 41 is a splicing groove 412, and the limiting structure at the bottom of the second stator tooth 42 is a second limiting groove 421, which are used to cooperate with the stacking tooling during the stacking process of the stator tooth portion 4, and to cooperate with the assembly tooling during the assembly process of the segmented block stator. The splicing groove 412 and the second limiting groove 421 have the same shape and size, and are integrally formed on the stator tooth portion 4.

[0064] Preferably, in combination with the above schemes, such as Figures 1 to 2 As shown, in one embodiment of the present invention, the bottom of the first mounting groove protrudes radially outward to form a splicing protrusion 13, which is integrally formed on the annular wall 11 and is adapted to engage with the splicing groove 412.

[0065] Specifically, the bottom of the first mounting groove protrudes radially outward to form a splicing protrusion 13. The splicing protrusion 13 is integrally formed on the annular wall 11 and is adapted to mesh with the splicing groove 412, which can further strengthen the connection between the first stator tooth 41 and the first mounting groove, and ensure the stability of the segmented spliced ​​stator. Preferably, the splicing protrusion 13 and the splicing groove 412 are bonded together with epoxy resin.

[0066] The splicing protrusions 13 and the limiting protrusions 12 are alternately arranged, and the number of splicing protrusions 13 and limiting protrusions 12 is the same as the number of stator teeth 4.

[0067] Accordingly, in conjunction with the above solutions, the present invention also provides a modular motor, including a rotor and a segmented modular stator provided in the first aspect embodiment. The rotor is disposed within the stator yoke 1 of the segmented modular stator. In the processing steps, the modular motor can reduce the risk of extrusion deformation of the stator teeth 4, simplify the production process, and improve reliability.

[0068] Accordingly, in conjunction with the above solutions, the present invention also provides a compressor, including the modular motor provided in the second aspect embodiment. In the processing of the compressor, the risk of extrusion deformation of the stator teeth 4 of the modular motor can be reduced, the production process can be simplified, and the reliability can be improved.

[0069] By setting stator pads 3 in the segmented block stator, a gap is formed between the stator teeth 4 and the stator housing 2, making the segmented block stator applicable to stator housings 2 of different sizes, and thus adapting to compressor housings of different sizes, thereby improving the applicability of the segmented block stator.

[0070] In addition, since there is a gap between the stator teeth 4 and the stator housing 2, the contact area between the oil-gas mixture and the outer surface of the stator housing 2 can be increased during compressor operation, thus optimizing the heat dissipation effect of the modular motor during operation.

[0071] Based on this, the segmented modular stator and the modular motor and compressor with segmented modular stator provided by the present invention can avoid direct contact between the stator teeth 4 and the stator housing 2 during the processing, thereby reducing the risk of extrusion deformation of the stator teeth 4, simplifying the production process and improving reliability.

[0072] Among them, the stator yoke 1, stator housing 2, stator pad 3 and stator teeth 4 are all integral structures. When the stator housing 2 is hot-fitted into the modular motor, the compression of the stator housing 2 makes the stator teeth 4 and the stator yoke 1 fit more tightly. At the same time, it avoids the stator housing 2 directly compressing and causing the stator teeth 4 to deform, thus reducing the assembly failure rate.

[0073] Among them, the stator teeth 4 and stator pad 3, the tooth shoe 411 and the first limiting groove, and the splicing protrusion 13 and splicing groove 412 are bonded with adhesive, which can save the equipment cost when using welding process.

[0074] The bottom of the first stator tooth 41 and the second stator tooth 42 are provided with limiting structures, which are used to cooperate with the stacking tooling when stacking magnetic conductive sheets, and to cooperate with the assembly tooling when assembling the segmented stator, to ensure the structural stability of the stator tooth 4. In addition, it is convenient to remove the damaged stator tooth 4 along the central axis of the stator housing 2, avoiding the need to replace the entire machine and reducing silicon steel loss.

[0075] The sequence numbers or order of description of the embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0076] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0077] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A segmented modular stator, characterized in that, include: The stator yoke (1) includes an annular wall (11) and a plurality of limiting protrusions (12) spaced circumferentially on the outer peripheral surface of the annular wall (11), and a first mounting groove is formed between adjacent limiting protrusions (12). The stator housing (2) surrounds the outside of the stator yoke (1); Stator pad (3), a plurality of stator pads (3) are arranged circumferentially along the inner circumferential surface of the stator housing (2), and the stator pads (3) are provided with grooves (31) on both sides of one end facing the stator yoke (1), and a second mounting groove corresponding to the first mounting groove is formed between the grooves (31) of adjacent stator pads (3); The stator teeth (4) are spaced apart between the stator yoke (1) and the stator pad (3). Each stator tooth (4) includes a first stator tooth (41) and a second stator tooth (42) disposed opposite to each other at its radial ends. The first stator tooth (41) is engaged in the first mounting groove, and the second stator tooth (42) is engaged in the second mounting groove. A gap is formed between the second stator tooth (42) and the stator housing (2).

2. The segmented modular stator according to claim 1, characterized in that, The outer peripheral surface of the ring wall (11) protrudes outward in the radial direction to form the limiting protrusion (12), and the two sides of the limiting protrusion (12) are recessed inward to form the first limiting groove; The first stator tooth (41) has toothed shoes (411) formed on both sides of its end, and the toothed shoes (411) are engaged in the first limiting groove.

3. The segmented modular stator according to any one of claims 1 to 2, characterized in that, The stator tooth portion (4) also includes a stator slot (43) located between the first stator tooth (41) and the second stator tooth (42), the stator slot (43) being recessed inward to form a recessed portion for winding a coil winding (44).

4. The segmented modular stator according to claim 2, characterized in that, The stator teeth (4) and the stator pad (3) are bonded together with adhesive, and the tooth shoe (411) and the first limiting groove are bonded together with adhesive.

5. The segmented modular stator according to claim 2, characterized in that, The limiting protrusion (12) is integrally formed on the annular wall (11); The groove (31) is integrally formed on the stator pad (3); The first stator tooth (41), the second stator tooth (42), and the tooth shoe (411) are integrally formed on the stator tooth portion (4).

6. The segmented modular stator according to claim 5, characterized in that, The stator yoke (1) / the stator pad (3) / the stator tooth (4) includes a plurality of magnetic sheets stacked along the extension direction of the stator yoke (1) / the stator pad (3) / the stator tooth (4); Alternatively, the stator yoke (1), the stator pad (3), and the stator tooth (4) are die-cast from magnetic material powder.

7. The segmented modular stator according to claim 6, characterized in that, The magnetic conductive sheet has an integrally formed iron core fastener (51). The iron core fastener (51) protrudes on one side of the magnetic conductive sheet to form a protrusion and is recessed on the other side of the magnetic conductive sheet to form a recess. The core fastening point (51) is located at the geometric center of the magnetic sheet, or multiple core fastening points (51) are evenly distributed on the magnetic sheet.

8. The segmented modular stator according to claim 6, characterized in that, The stator tooth (4) also includes a modular skeleton, which is attached to the magnetic sheet on one side of the stator tooth (4), and the modular skeleton has a protruding structure extending along the stacking direction of the magnetic sheet. The magnetic conductive sheet has a skeleton fastening point (52) adapted to the protruding structure, and the protruding structure passes through the skeleton fastening point (52).

9. The segmented modular stator according to claim 6, characterized in that, The bottom of the first stator tooth (41) and the bottom of the second stator tooth (42) are provided with a limiting structure, which is used to cooperate with the stacking tooling for stacking the magnetic conductive sheet.

10. The segmented modular stator according to claim 9, characterized in that, The limiting structure located at the bottom of the first stator tooth (41) is a splicing groove (412), and the limiting structure located at the bottom of the second stator tooth (42) is a second limiting groove (421); The splicing groove (412) and the second limiting groove (421) have the same shape and size, and are integrally formed on the stator tooth part (4).

11. The segmented modular stator according to claim 10, characterized in that, The bottom of the first mounting groove protrudes radially outward to form a splicing protrusion (13), which is integrally formed on the annular wall (11) and is adapted to engage with the splicing groove (412). The splicing protrusion (13) and the limiting protrusion (12) are alternately arranged at intervals.

12. A modular motor, characterized in that, include: Rotor; And the segmented block stator according to any one of claims 1 to 11, wherein the rotor passes through the stator yoke (1) of the segmented block stator.

13. A compressor, characterized in that, Including the modular motor as described in claim 12.

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