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CN-122026643-A - Split type split stator, split motor and compressor

CN122026643ACN 122026643 ACN122026643 ACN 122026643ACN-122026643-A

Abstract

The invention provides a split type split block stator, a split type split block motor and a split type split block compressor, and belongs to the technical field of split type split block motors. The split type split block stator comprises a stator yoke part, a stator shell, stator cushion blocks, a stator tooth part and a plurality of stator tooth parts, wherein the stator yoke part comprises a circular wall and a plurality of limiting protrusions arranged on the circular wall at intervals, the stator shell is arranged on the outer side of the stator yoke part in a surrounding mode, the stator cushion blocks are arranged at intervals along the circumferential direction of the stator shell, grooves are formed in two sides of one end of each stator cushion block, which faces the stator yoke part, 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 first mounting grooves between adjacent limiting protrusions, second stator teeth are clamped in second mounting grooves between grooves of adjacent stator cushion blocks, and gaps are formed between the second stator teeth and the stator shell. The scheme provided by the invention has reasonable structural design, and can avoid direct contact between the stator tooth part and the stator shell, thereby reducing the risk of extrusion deformation of the stator tooth part, simplifying the production process and improving the reliability.

Inventors

  • LI LANWEI
  • CHEN HUAJIE
  • SUN ZONGWEI
  • NIU QUN
  • BAI YUNTIAN

Assignees

  • 珠海凌达压缩机有限公司
  • 珠海格力电器股份有限公司

Dates

Publication Date
20260512
Application Date
20251229

Claims (13)

  1. 1. A split type split block stator, characterized by comprising the following steps: A stator yoke (1) comprising a circumferential wall (11) and a plurality of limit protrusions (12) circumferentially arranged at intervals on the outer circumferential surface of the circumferential wall (11), wherein a first mounting groove is formed between adjacent limit protrusions (12); A stator housing (2) which is provided around the outside of the stator yoke (1); The stator cushion blocks (3) are arranged at intervals along the circumferential direction of the inner circumferential surface of the stator housing (2), grooves (31) are formed in two sides of one end, facing the stator yoke (1), of each stator cushion block (3), and second mounting grooves corresponding to the first mounting grooves are formed between the grooves (31) of adjacent stator cushion blocks (3); stator tooth portion (4), a plurality of stator tooth portion (4) interval sets up stator yoke portion (1) with between stator cushion (3), stator tooth portion (4) are including relative first stator tooth (41) and the second stator tooth (42) that set up at its radial both ends, first stator tooth (41) joint in first mounting groove second stator tooth (42) joint in the second mounting groove, second stator tooth (42) with be formed with the clearance between stator shell (2).
  2. 2. Split type split stator according to claim 1, characterized in that the outer circumferential surface of the annular wall (11) protrudes radially outwards to form the limit protrusion (12), and both sides of the limit protrusion (12) are recessed inwards to form a first limit groove; Tooth shoes (411) are formed on two sides of the end part of the first stator tooth (41), and the tooth shoes (411) are clamped in the first limiting groove.
  3. 3. Split block stator according to any one of claims 1-2, characterized in that the stator tooth (4) further comprises a stator slot (43) between the first stator tooth (41) and the second stator tooth (42), the stator slot (43) being recessed inwards to form a recess for winding a coil winding (44).
  4. 4. Split block stator according to claim 2, characterized in that the stator teeth (4) are bonded with the stator block (3) and the tooth shoes (411) are bonded with the first limit grooves by means of an adhesive.
  5. 5. Split block stator according to claim 2, characterized in that the limit projection (12) is integrally formed on the annular wall (11); the groove (31) is integrally formed on the stator cushion block (3); The first stator teeth (41), the second stator teeth (42) and the tooth shoes (411) are integrally formed on the stator tooth parts (4).
  6. 6. Split block stator according to claim 5, characterized in that the stator yoke (1)/stator block (3)/stator tooth (4) comprises a plurality of magnetically conductive sheets arranged in a stack along the direction of extension of the stator yoke (1)/stator block (3)/stator tooth (4); or the stator yoke part (1)/the stator cushion block (3)/the stator tooth part (4) are formed by magnetic material powder die casting.
  7. 7. The split type split stator according to claim 6, wherein the magnetic conductive sheet is integrally formed with a core fastening point (51), the core fastening point (51) protrudes toward one side surface of the magnetic conductive sheet to form a protruding portion, and recesses toward the other side surface of the magnetic conductive sheet to form a recessed portion; the iron core buckling points (51) are located at the geometric center of the magnetic conduction sheet, or a plurality of iron core buckling points (51) are uniformly distributed on the magnetic conduction sheet.
  8. 8. The split type split stator according to claim 6, wherein the stator tooth (4) further comprises a split skeleton, the split skeleton is attached to the magnetic conductive sheet on one side of the stator tooth (4), and a protruding structure extending along the lamination direction of the magnetic conductive sheet is arranged on the split skeleton; The magnetic conductive sheet is provided with a framework buckling point (52) which is adapted to the protruding structure, and the protruding structure penetrates through the framework buckling point (52).
  9. 9. The split block stator according to claim 6, wherein the bottom of the first stator teeth (41) and the bottom of the second stator teeth (42) are provided with a limiting structure for cooperation with a lamination tool for lamination of the magnetic conductive sheets.
  10. 10. Split block stator according to claim 9, characterized in that the limit structure at the bottom of the first stator tooth (41) is a splice groove (412) and the limit structure at the bottom of the second stator tooth (42) is a second limit groove (421); the splicing groove (412) and the second limiting groove (421) are identical in shape and size, and are integrally formed in the stator tooth part (4).
  11. 11. Split type split stator according to claim 10, characterized in that the bottom of the first mounting groove is raised radially outwards to form a raised splicing protrusion (13), the splicing protrusion (13) being integrally formed in the annular wall (11), the splicing protrusion (13) being adapted to engage with the splicing groove (412); The splicing protrusions (13) and the limiting protrusions (12) are alternately arranged at intervals.
  12. 12. A block-type motor, characterized by comprising the following steps: A rotor; and the split stator of any one of claims 1to 11, the rotor being threaded into a stator yoke (1) of the split stator.
  13. 13. A compressor is characterized in that, comprising the tile motor of claim 12.

Description

Split type split stator, split motor and compressor Technical Field The invention belongs to the technical field of split type motors, and particularly relates to a split type split stator, a split type split motor and a compressor. Background The split motor is widely applied in the motor field by virtue of the advantages of high winding convenience, high slot filling rate, small volume of the stator end winding, low copper loss, small torque fluctuation and the like. The stator of a segment motor is formed by combining a plurality of independent segments, and the manufacturing process generally comprises the steps of winding enamelled copper wires on segmented core segments in advance to form stator units with windings, and splicing the stator units into an annular structure according to a design sequence. In the conventional process, adjacent segments are required to be fixed by laser welding to form a complete annular stator. However, this approach has significant drawbacks, on the one hand, in that the welding process relies on specialized equipment (e.g., laser welder, etc.), increasing equipment investment and maintenance costs, and on the other hand, in that the welding operation requires precise alignment and thermal control, is highly complex, and in that the weld quality hidden danger may affect the long-term reliability of the stator. Disclosure of Invention The invention aims to solve the problems of complex assembly process, low assembly precision, low groove filling rate, high processing cost and the like of the traditional split type stator. The invention provides a split block stator, comprising: The stator yoke comprises a ring wall and a plurality of limit protrusions arranged on the outer peripheral surface of the ring wall at intervals along the circumferential direction, and a first mounting groove is formed between every two adjacent limit protrusions; the stator shell is arranged on the outer side of the stator yoke part in a surrounding mode; the stator cushion blocks are arranged at intervals along the circumferential direction of the inner circumferential surface of the stator shell, grooves are formed in two sides of one end, facing the stator yoke, of each stator cushion block, and second mounting grooves corresponding to the first mounting grooves are formed between the grooves of the adjacent stator cushion blocks; The stator tooth parts are arranged between the stator yoke part and the stator cushion block at intervals, each stator tooth part comprises a first stator tooth and a second stator tooth which are oppositely arranged at the two radial ends of the stator tooth parts, the first stator tooth is clamped in the first mounting groove, the second stator tooth is clamped in the second mounting groove, and a gap is formed between the second stator tooth and the stator shell. Further, the outer peripheral surface of the annular wall is outwards protruded in the radial direction to form a limiting protrusion, two sides of the limiting protrusion are inwards recessed to form a first limiting groove, two sides of the end part of the first stator tooth are provided with tooth shoes, and the tooth shoes are clamped in the first limiting groove. Further, the stator tooth part further comprises a stator groove positioned between the first stator tooth and the second stator tooth, and the stator groove is inwards recessed to form a concave part for winding the coil winding. Further, the stator tooth part and the stator cushion block are bonded by adopting an adhesive between the tooth shoe and the first limit groove. Further, the limiting protrusion is integrally formed on the annular wall, the groove is integrally formed on the stator cushion block, and the first stator tooth, the second stator tooth and the tooth shoe are integrally formed on the stator tooth part. Further, the stator yoke/stator pad/stator tooth comprises a plurality of magnetic conductive sheets laminated along the extending direction of the stator yoke/stator pad/stator tooth, or the stator yoke/stator pad/stator tooth is formed by die casting magnetic material powder. Further, the magnetic conductive sheet is integrally formed with iron core buckling points, wherein the iron core buckling points are protruded towards one side surface of the magnetic conductive sheet to form a protruding part, and are recessed towards the other side surface of the magnetic conductive sheet to form a recessed part, and the iron core buckling points are positioned at the geometric center of the magnetic conductive sheet or uniformly distributed on the magnetic conductive sheet. Further, the stator tooth part further comprises a block framework, the block framework is attached to the magnetic conducting plates on one side of the stator tooth part, the block framework is provided with a protruding structure extending along the lamination direction of the magnetic conducting plates, the magnetic conducting plates are provided with f