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Motor device and its stator

A stator and stator core technology, applied in the direction of electromechanical devices, electrical components, electric components, etc., can solve the problems of circuit noise, increase the cost of circuit boards, etc., and achieve the effect of reducing noise, realizing electrical isolation, and simplifying the production process

Active Publication Date: 2021-01-05
JOHNSON ELECTRIC SHENZHEN
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In traditional brushless DC motors with three-phase windings using a star connection structure, the three-phase windings need to be connected to a neutral point. Usually, six terminals are set on the circuit board of the motor, which are respectively connected to the phase of each winding. The lead-out terminal and the neutral-point lead-out terminal are connected, and the neutral-point lead-out terminal of each phase winding is electrically merged on the circuit board, which requires the circuit board to provide additional space or an additional wiring layer to realize the neutral point connection The combination of terminals, these will increase the cost of the board, and will also cause noise in the circuit

Method used

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  • Motor device and its stator
  • Motor device and its stator
  • Motor device and its stator

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Embodiment Construction

[0027] The technical solutions and other beneficial effects of the present invention will be apparent through the detailed description of specific embodiments of the present invention below in conjunction with the accompanying drawings. It can be understood that the drawings are provided for reference and illustration only, and are not intended to limit the present invention. The dimensions shown in the drawings are only for the convenience of clear description, and do not limit the proportional relationship.

[0028] Please refer to figure 1 and figure 2 , The motor device 10 provided by the embodiment of the present invention includes a stator 20 and a rotor 50 that can rotate relative to the stator.

[0029] The stator 20 includes a cylindrical shell 21 with an open end, an end cover 23 mounted to the open end of the shell 21, a stator core 30 mounted in the shell 21, an insulating wire frame 40 mounted to the stator core 30, and an insulating wire frame installed on the...

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Abstract

The application provides a stator, the stator has a stator core and a three-phase winding wound on the stator core, the stator is provided with a neutral point terminal, and each phase winding has a phase lead terminal and a neutral point The lead-out terminal, the neutral-point lead-out terminal of each phase winding is fixed and electrically connected to the neutral-point terminal. The present application also provides a motor device with the stator. The neutral point lead-out wire ends of the three-phase windings are electrically connected outside the circuit board, and the circuit board no longer needs to provide additional space or additional wiring layers to realize the merging of the neutral point lead-out wires, which reduces the cost of the circuit board. cost, and simplify the manufacturing process of the circuit board.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a wiring structure of a winding of a three-phase brushless DC motor. Background technique [0002] The three-phase brushless DC motor has the characteristics of small size and simple control because it does not use mechanical brushes and commutators. It is more and more used in various equipment, such as household appliances, medical equipment, vehicles, and electric tools. Wait. In traditional brushless DC motors with three-phase windings using a star connection structure, the three-phase windings need to be connected to a neutral point. Usually, six terminals are set on the circuit board of the motor, which are respectively connected to the phase of each winding. The lead-out terminal and the neutral-point lead-out terminal are connected, and the neutral-point lead-out terminal of each phase winding is electrically merged on the circuit board, which requires the circuit board t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K3/50
CPCH02K3/50H02K3/38H02K11/215H02K11/33H02K5/225H02K3/28
Inventor 罗尼·科尔纲岛大辅潘广业宋永强
Owner JOHNSON ELECTRIC SHENZHEN
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