High-precision control with a notch embedded wire type direct drive motor stator

Abstract

The utility model discloses a kind of slot embedded wire type direct drive motor stator for high-precision control, including stator core and the stator winding connected by multiple stator coil package;The stator winding is nested on the inner circumference of stator core;The stator core is stacked by multiple stator punching sheet;Circular through-hole is provided in the middle of the stator core, and multiple embedded wire slots are evenly distributed in the inner ring of stator core along circumference, and rectangular tooth part between adjacent embedded wire slots;The stator coil package is nested on corresponding tooth part;Multiple welding grooves are evenly distributed on the outside of the stator core.The utility model is applied to high-precision scene with more uniform magnetic field, lower loss, satisfy the advantages of high-precision control demand.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a slotted direct drive motor stator for high-precision control. Background Technology

[0002] An electric motor is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. An electric motor consists of a main shaft, a stator assembly, and a rotor assembly. The stator assembly is the stationary part of the motor and typically includes a stator core and stator windings wound around the stator core.

[0003] Existing stator windings typically employ a winding process, where enameled wire is wound onto the corresponding stator core using specialized winding equipment. Stator assemblies prepared using the traditional winding process are sufficient for general applications, but significant problems have been found when applied to high-precision control scenarios.

[0004] In practical applications, the following problems were found in traditional wound stator assemblies under high-precision control scenarios: 1. Traditional stator windings have limited flatness and low uniformity during the winding process, resulting in large errors in length and height. This leads to inconsistent motor inductance and uneven output during actual use, failing to meet the requirements of high-precision control. 2. The height of the stator windings in traditional stator assemblies has errors after winding, sometimes too high or too low. Stator windings that are too high will generate more heat and consume more power during use due to their high resistance, resulting in greater losses. Utility Model Content

[0005] The purpose of this invention is to provide a slotted, embedded direct-drive motor stator for high-precision control. This invention offers advantages such as a more uniform magnetic field, lower losses, and better meeting the requirements of high-precision control in high-precision applications.

[0006] The technical solution of this utility model: A high-precision control slotted direct-drive motor stator includes a stator core and a stator winding formed by connecting multiple stator coils; the stator winding is nested on the inner circumference of the stator core; the stator core is formed by stacking multiple stator laminations; a circular through hole is opened in the middle of the stator core, and multiple slots are evenly distributed along the circumference of the inner ring of the stator core, with rectangular teeth between adjacent slots; the stator coils are nested on the corresponding teeth; and multiple welding grooves are evenly distributed on the outside of the stator core.

[0007] In the aforementioned high-precision control slotted direct drive motor stator, there are 2n slots, and the corresponding number is set according to the actual size requirements, such as 24, 48, 72, 96, etc.

[0008] In the aforementioned high-precision control slotted direct drive motor stator, there are 2n welding slots.

[0009] In the aforementioned high-precision control slotted direct drive motor stator, the slot is trapezoidal.

[0010] In the aforementioned high-precision control slotted direct drive motor stator, the stator coil is a uniformly wound, integrally enameled coil; the shape of the stator coil corresponds to the tooth portion.

[0011] Compared with the prior art, this application opens uniformly distributed slots on the stator core, and the teeth between the slots are rectangular. This eliminates the limiting part at the slot opening of the traditional stator core. Combined with the stator winding composed of multiple stator coils, the rectangular teeth can directly nest the stator coils horizontally. Compared with the traditional winding preparation method, the flatness is higher and the error in the height and length of the winding coil is relatively smaller. The motor stator prepared using this application has a simpler manufacturing process, higher winding uniformity, more uniform magnetic field distribution, more uniform output, relatively lower winding height, lower resistance, and relatively lower heat loss.

[0012] Therefore, this invention has the advantages of more uniform magnetic field, lower loss, and meeting the requirements of high-precision control when applied to high-precision scenarios. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the stator coil of this utility model; Figure 3 This is a schematic diagram of the structure of this utility model (after embedding).

[0014] The markings in the attached diagram are: 1-stator core, 2-tooth section, 3-insertion groove, 4-solder joint, 5-stator coil. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0016] Example. A slotted direct-drive motor stator for high-precision control, such as... Figure 1-3As shown, it includes a stator core 1 and a stator winding composed of multiple stator coils 5 connected together; the stator winding is nested on the inner circumference of the stator core 1; the stator core 1 is formed by stacking multiple stator laminations; a circular through hole is opened in the middle of the stator core 1, and multiple winding slots 3 are evenly distributed along the circumference of the inner ring of the stator core 1, with rectangular teeth 2 between adjacent winding slots 3; the stator coils are nested on the corresponding teeth 2; and multiple welding slots 4 are evenly distributed on the outside of the stator core 1.

[0017] The wire embedding groove 3 has 48 slots.

[0018] The welding groove 4 has 12 grooves.

[0019] The inlay groove 3 is trapezoidal.

[0020] The stator coil 5 is a uniformly wound, integrally coated enameled coil. The preparation method involves winding the glued enameled wire onto a mold matching the stator core 1, heating it with electricity to melt the glue, and after the glue has solidified, removing the integrally coated enameled coil from the mold. Compared with traditional winding groups, it is flatter and less prone to deformation. The shape and size of the stator coil 5 correspond to the toothed part 2.

Claims

1. A slotted inset direct-drive motor stator for high-precision control, characterized in that: It includes a stator core (1) and a stator winding composed of multiple stator coils (5); the stator winding is nested on the inner circumference of the stator core (1); the stator core (1) is formed by stacking multiple stator laminations; a circular through hole is opened in the middle of the stator core (1); multiple winding slots (3) are evenly distributed along the circumference of the inner ring of the stator core (1); and there are rectangular teeth (2) between adjacent winding slots (3); the stator coils are nested on the corresponding teeth (2); and multiple welding slots (4) are evenly distributed on the outside of the stator core (1).

2. The high-precision control slotted direct-drive motor stator according to claim 1, characterized in that: The inlay groove (3) has 2n slots, where n is 12, 24, 36 or 48.

3. The high-precision control slotted direct-drive motor stator according to claim 1, characterized in that: The welding groove (4) is provided with 2n, where n is 6.

4. The high-precision control slotted direct-drive motor stator according to claim 1, characterized in that: The inlay groove (3) is trapezoidal.

5. A slotted direct-drive motor stator for high-precision control according to claim 1, characterized in that: The stator coil (5) is a uniformly wound, integrally coated enameled coil; the shape and size of the stator coil (5) correspond to the teeth (2).

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