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CN-224233405-U - Straight bar type split stator, motor, electric vehicle and electric tool

CN224233405UCN 224233405 UCN224233405 UCN 224233405UCN-224233405-U

Abstract

The utility model provides a straight piece type block stator, a motor, an electric vehicle and an electric tool, which comprise pins, silicon steel sheet groups and coils, wherein a plurality of silicon steel sheet groups are sequentially connected end to end through the pins to form a circular ring shape, and the coils are respectively wound on each silicon steel sheet group. Not only simplifying the manufacturing process, but also effectively avoiding the problems of short circuit and thermal effect among sheets possibly occurring in the welding process and improving the electromagnetic performance. The pin connection also has higher connection strength and stability, and can be better suitable for mechanical stress in motor operation.

Inventors

  • HUANG HONGYUE
  • SHU WEIFANG
  • SUN YANG

Assignees

  • 安乃达科技(天津)有限公司

Dates

Publication Date
20260512
Application Date
20250418

Claims (10)

  1. 1. The straight bar type split stator is characterized by comprising a pin (1), a silicon steel sheet group (2) and a coil (3); The silicon steel sheet groups (2) are sequentially connected end to end through the pins (1) to form a circular ring shape, and the coils (3) are respectively wound on each silicon steel sheet group (2).
  2. 2. The bar segment stator according to claim 1, characterized in that the silicon steel sheet group (2) comprises a plurality of layers of silicon steel sheets stacked on each other.
  3. 3. The bar type split stator as claimed in claim 2, wherein an insulating layer is provided between two adjacent layers of the silicon steel sheets.
  4. 4. The bar type split stator as claimed in claim 2, wherein the plurality of layers of silicon steel sheets stacked on each other are divided into an upper half and a lower half; the upper half silicon steel sheet is provided with a first extension part (4) extending to one side, and the lower half silicon steel sheet is provided with a second extension part (5) extending to the opposite side; the first extension part (4) of one silicon steel sheet group (2) and the second extension part (5) of the other adjacent silicon steel sheet group (2) are arranged in an up-down overlapping mode.
  5. 5. The straight bar type split stator as claimed in claim 4, wherein a first pin hole (401) is formed in the first extension portion (4) along the stacking direction, and a second pin hole (501) is formed in the second extension portion (5) along the stacking direction; A first pin hole (401) of the first extension part (4) and a second pin hole (501) of the second extension part (5) which are overlapped with each other are jointly penetrated with one pin (1).
  6. 6. The bar type split stator as claimed in claim 1, wherein the silicon steel sheet group (2) includes a winding portion (201), and the coil (3) is wound around the winding portion (201).
  7. 7. The bar type split stator according to claim 6, characterized in that an end of the winding part (201) has a limit part (202) for limiting the coil (3).
  8. 8. An electric machine comprising a bar-type split stator as claimed in any one of claims 1 to 7.
  9. 9. An electric vehicle comprising the motor of claim 8.
  10. 10. A power tool comprising the motor of claim 8.

Description

Straight bar type split stator, motor, electric vehicle and electric tool Technical Field The utility model relates to the field of motors, in particular to a straight bar type split stator, a motor, an electric vehicle and an electric tool. Background The stator and the rotor of the motor are the core components of the motor and respectively play the key roles of generating a magnetic field and converting energy. The stator is a static part of the motor and mainly comprises an iron core and a winding, wherein the iron core is formed by laminating silicon steel sheets, so that eddy current loss is reduced, a magnetic circuit is provided, the winding is embedded into an iron core slot, and a magnetic field is generated after the winding is electrified, so that the rotor is driven to rotate. Therefore, the stator core structural design directly affects the performance and production efficiency of the motor. Patent document CN220190542U discloses a split stator core, a motor, and a vehicle, and in an embodiment thereof, specifically discloses that "the core structure 100 is configured with a welding groove 102 for welding between two adjacent core structures 100. Illustratively, the weld slot 102 is located at an outer edge of the core structure 100, and a tab may be provided within the weld slot 102 to facilitate welding between the core structures 100. The connection mode is complex in process, and the electromagnetic performance of the stator can be reduced due to the problems of inter-sheet short circuit and thermal effect possibly occurring in the welding process. Disclosure of utility model Aiming at the defects in the prior art, the utility model aims to provide a straight bar type split stator, a motor, an electric vehicle and an electric tool. The utility model provides a straight bar type split stator, which comprises pins, a silicon steel sheet group and coils, wherein the pins are arranged on the silicon steel sheet group; The silicon steel sheet groups are sequentially connected end to end into a ring shape through the pins, and the coils are respectively wound on each silicon steel sheet group. Further, the silicon steel sheet group includes a plurality of silicon steel sheets stacked one on another. Further, an insulating layer is arranged between two adjacent layers of silicon steel sheets. Further, the multi-layer silicon steel sheets stacked on each other are divided into an upper half part and a lower half part; The upper half silicon steel sheet is provided with a first extension part extending to one side, and the lower half silicon steel sheet is provided with a second extension part extending to the opposite side; The first extension part of one silicon steel sheet group and the second extension part of the other adjacent silicon steel sheet group are arranged in an up-down overlapping mode. Further, a first pin hole is formed in the first extension portion along the stacking direction, and a second pin hole is formed in the second extension portion along the stacking direction; The first pin hole of the first extension part and the second pin hole of the second extension part which are overlapped with each other are internally penetrated with one pin together. Further, the silicon steel sheet group comprises a winding part, and the coil is wound on the winding part. Further, the end of the winding part is provided with a limiting part for limiting the coil. The motor provided by the utility model comprises the straight bar type split stator. The electric vehicle provided by the utility model comprises the motor. According to the utility model, the electric tool comprises the motor. Compared with the prior art, the utility model has the following beneficial effects: According to the straight strip type split stator, the single silicon steel punched sheets are closely attached to each other by the punching sheet units for layout, so that waste is further reduced between the two punched sheets of the power strip, material waste is reduced, and production cost is reduced. The produced punching sheet is integrally formed by lamination, and the joint is connected by pins, so that the traditional welding process is replaced, and the processing difficulty and the labor cost are greatly reduced. Meanwhile, the pin connection mode effectively reduces the reject ratio caused by poor welding, and improves the overall quality and consistency of products. The pin connection structure is relatively simple and easy to detach and replace. When faults or damages occur, the stator can be quickly replaced or repaired, and the stator can bear vibration and variable load by adopting pin connection, so that the stability of the stator in the running process is ensured. Drawings Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which: FIG. 1 is a