CN-122026654-A - Motor stator, motor and controller assembling method

CN122026654ACN 122026654 ACN122026654 ACN 122026654ACN-122026654-A

Abstract

The application belongs to the technical field of motors, and relates to a motor stator, a motor and an assembly method of a controller. The motor stator includes a circuit board, at least one conductive output terminal, and a plurality of windings. The circuit board is provided with a plurality of through holes, and is provided with at least one phase of flow guide circuit. The conductive output terminals are mounted on the circuit board, and each conductive output terminal is electrically connected with the diversion circuit corresponding to one phase. The winding has connection ends. The windings are positioned on one side of the circuit board, which is away from the conductive output terminal, and the connecting end of each winding is correspondingly penetrated through one through hole and welded with the circuit board. The motor stator can reduce the volume of the motor stator, reduces the occupation of the internal assembly space of the motor, does not need manual wiring of production and installation personnel, and is favorable for improving the assembly efficiency of the motor.

Inventors

LIU JIAXU
LIN YINGZHU
HUANG YUZHI

Assignees

鸿海精密工业股份有限公司

Dates

Publication Date: 20260512
Application Date: 20251226
Priority Date: 20251121

Claims (12)

1. An electric motor stator configured to mate with an electric motor rotor, the electric motor stator comprising: the circuit board is provided with a plurality of through holes, and the through holes are distributed in an annular shape along the rotation axis of the motor rotor; At least one conductive output terminal mounted on the circuit board, each conductive output terminal being electrically connected with the diversion circuit of a corresponding phase; The windings are respectively positioned at one side of the circuit board, which is away from the conductive output terminal, and the connecting end of each winding is correspondingly arranged through one through hole and welded with the circuit board, so that the windings are electrically connected with the corresponding diversion circuit.
2. The motor stator according to claim 1, wherein a distance between the conductive output terminal and the rotational axis of the motor rotor is L1 in an extending direction of the rotational axis of the motor rotor, and a distance between the through hole and the rotational axis of the motor rotor is L2, L2> L1.
3. The motor stator of claim 1 wherein the circuit board has an inner portion with an over-current copper sheet, the connection ends of all the windings being electrically connected to the over-current copper sheet, the circuit board further including a wire mounted to an outer surface of the circuit board and electrically connected to the over-current copper sheet, the over-current copper sheet and the wire together forming the flow guide circuit.
4. A motor stator according to claim 3, wherein the wire is an enamel wire and is constructed in a flat wire shape or a round wire shape.
5. The motor stator according to any one of claims 1 to 4, wherein the thickness of the circuit board is 5mm to 7mm in the extending direction of the rotational axis of the motor rotor.
6. The motor stator according to claim 1, wherein the number of the current guiding circuits is three, the three current guiding circuits are a U-phase current guiding circuit, a V-phase current guiding circuit and a W-phase current guiding circuit, the number of the conductive output terminals is three, and the three conductive output terminals are respectively and correspondingly connected to the U-phase current guiding circuit, the V-phase current guiding circuit and the W-phase current guiding circuit.
7. The motor stator according to claim 6, wherein three of the conductive output terminals are circumferentially spaced along the rotational axis of the motor rotor, and a center line of the three conductive output terminals is triangular.
8. An electric machine comprising a housing, a motor rotor and the motor stator of any one of claims 1 to 7, the motor stator and the motor rotor being coaxially disposed within the housing, and the motor rotor being configured to be rotatable relative to the motor stator.
9. The motor of claim 8, further comprising a controller mounted within the housing, and wherein a power board in the controller is attached to and electrically connected to the conductive output terminals.
10. The motor of claim 9, further comprising a fastener, wherein the power board and the conductive output terminal in the controller are provided with connection holes, and the fastener is disposed through the corresponding connection hole, so that the conductive output terminal is locked to and electrically connected with the power board.
11. The electric machine of claim 10, further comprising an insulating spacer disposed between the fastener and a power board in the controller.
12. A method of assembling a controller, for assembling the controller and the motor stator according to any one of claims 1 to 7, characterized in that the method of assembling the controller comprises the steps of: Obtaining a target circuit board, wherein the target circuit board comprises at least one phase of flow guide circuit and a plurality of through holes; the connecting end of each winding is penetrated through the corresponding through hole and welded on the circuit board, and a plurality of windings are electrically connected with the diversion circuit of the corresponding phase; the conductive output terminal is arranged on one side of the circuit board, which is away from the winding, and is electrically connected with the diversion circuit of a corresponding phase in the circuit board; and locking and electrically connecting a power board in the controller with the conductive output terminal.

Description

Motor stator, motor and controller assembling method Technical Field The application relates to the technical field of motors, in particular to a motor stator, a motor and an assembly method of a controller. Background The motor stator generally includes a knot assembly and a plurality of windings connected to the knot assembly. In the related art, the wire bonding assembly is generally formed by stacking a plurality of wire bonding rings, and due to the complex structure of the wire bonding rings, a worker is required to manually perform wire bonding assembly between the plurality of windings and the wire bonding assembly. However, the stacked wiring assembly can significantly increase the volume of the motor stator, occupy valuable assembly space inside the motor, and are not beneficial to the miniaturization design of the motor. Meanwhile, the efficiency of manual wire bonding is low, and the manufacturing cost of the motor can be correspondingly increased. Disclosure of Invention In view of the above, it is necessary to provide an assembly method of a motor stator, a motor and a controller, which not only can reduce the volume of the motor stator and facilitate the miniaturization design of the motor, but also does not need manual wiring, thereby being beneficial to improving the assembly efficiency of the motor and reducing the production cost. An embodiment of the application provides a motor stator configured to mate with a motor rotor. The motor stator includes a circuit board, at least one conductive output terminal, and a plurality of windings. The circuit board is provided with a plurality of through holes which are distributed in a ring shape along the rotation axis of the motor rotor. The circuit board is configured with at least one phase of flow guiding circuit. The conductive output terminals are mounted on the circuit board, and each conductive output terminal is electrically connected with the diversion circuit corresponding to one phase. The winding has connection ends. The windings are positioned on one side of the circuit board, which is away from the conductive output terminal, and the connecting end of each winding correspondingly penetrates through one through hole and is welded with the circuit board, so that the windings are electrically connected with the corresponding diversion circuit. In the motor stator, the circuit board is used as a wire connecting main body of the windings, the connecting end of each winding is penetrated into the corresponding through hole and welded with the circuit board, and the windings in the same phase are electrically connected with the conductive output end through the corresponding diversion circuit. On the one hand, production installer can design different circuit boards (namely the knot line main part) in a flexible way according to actual conditions, and compared with the current knot line subassembly, the thickness of circuit board is less, can reduce motor stator's volume to reduce the occupation to motor inside assembly space, help miniaturized design and the design of integrating of motor. On the other hand, production installer can be through outside automation equipment (for example welding equipment, grafting equipment etc.) accurately with a plurality of windings welding in the circuit board fast, need not the manual knot line of production installer, is favorable to improving the packaging efficiency of motor, reduction in production cost. In some embodiments of the present application, in the extending direction of the rotation axis of the motor rotor, the distance between the conductive output terminal and the rotation axis of the motor rotor is L1, and the distance between the through hole and the rotation axis of the motor rotor is L2, where L2> L1. In some embodiments of the present application, the circuit board is internally integrated with an overcurrent copper sheet, and the connection ends of all the windings are electrically connected with the overcurrent copper sheet. The circuit board also comprises a wire which is arranged on the outer surface of the circuit board and is electrically connected with the overcurrent copper sheet. The overcurrent copper sheet and the lead form a diversion circuit together. In some embodiments of the present application, the wire is an enamel wire and is configured in a flat wire shape or a round wire shape. In some embodiments of the application, the circuit board has a thickness of 5mm to 7mm in the direction of extension of the axis of rotation of the motor rotor. In some embodiments of the present application, the number of the diversion circuits is three, and the three diversion circuits are a U-phase diversion circuit, a V-phase diversion circuit and a W-phase diversion circuit respectively. The number of the conductive output terminals is three, and the three conductive output terminals are correspondingly connected with the U-phase diversion circuit, the V-phase diversion circuit and