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Lead frame for hub motor

A technology of lead frame and wheel hub motor, which is applied in the direction of electrical components, electromechanical devices, electric components, etc., can solve the problems of the influence of electric motor power generation capacity, achieve high torque and power value, and reduce the effect of space envelope

Pending Publication Date: 2021-01-19
ZHEJIANG VIE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to space constraints within the wheel of the vehicle where the electric motor and its associated control system are integrated, this can have an impact on the electric motor's ability to generate electricity

Method used

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  • Lead frame for hub motor
  • Lead frame for hub motor
  • Lead frame for hub motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] This embodiment provides a lead frame for coupling an inverter of a motor or a generator to a DC power supply; the lead frame includes a printed circuit board having a plurality of circuit board layers, each circuit board layer including an insulating substrate; A conductive layer is formed on the insulating substrate; the printed circuit board has at least a first circuit board layer, a second circuit board layer, a third circuit board layer and a fourth circuit board layer; the first circuit board layer includes a first conductive layer, a first The conductive layer is arranged to be electrically coupled to the first coil winding of the first set of coil windings and the first branch of the first inverter; the second circuit board layer includes a second conductive layer arranged to be electrically coupled to the first a second coil winding of one set of coil windings and a second branch of the first inverter; a third circuit board layer comprising a third conductive l...

Embodiment 2

[0082] To allow for increased current, and thus increased torque, one or more circuit board layers may be duplicated. In this embodiment, the printed board also includes a sixth circuit board layer, the sixth circuit board layer includes a ninth conductive layer, and the structure of the sixth circuit board layer is the same as that of the first circuit board layer; it also includes a seventh circuit board layer, the seventh circuit board layer The circuit board layer includes the tenth conductive layer, and the structure of the tenth circuit board layer and the second circuit board layer is the same; it also includes the eighth circuit board layer, and the eighth circuit board layer includes the eleventh conductive layer, the eighth circuit board layer and the The third circuit board layer has the same structure; it also includes the ninth circuit board layer, the ninth circuit board layer includes the twelfth conductive layer, and the ninth circuit board layer and the fourth ...

Embodiment 3

[0084] This embodiment provides a motor, the lead frame of embodiment 1 or embodiment 2 is installed on the circumferential support, and the coil winding is connected to the lead frame to form a star connection; the lead frame is installed on the circumference adjacent to the coil winding onto the support.

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Abstract

The invention relates to the field of lead frames, and discloses a lead frame for a hub motor. The lead frame comprises a printed circuit board having a plurality of circuit board layers, wherein a first circuit board layer is arranged to be electrically coupled to a first coil winding of a first set of coil windings and a first branch of a first inverter; the second circuit board layer is arranged to be electrically coupled to the second coil windings of the first set of coil windings and the second branch of the first inverter; the third circuit board layer is arranged to be electrically coupled to a third coil winding of the first set of coil windings and a third branch of the first inverter; the fourth circuit board layer is arranged to be coupled with the first coil winding, the second coil winding and the third coil winding of the first group of coil windings so as to form a neutral point among the first coil winding, the second coil winding and the third coil winding. The lead frame can provide large current between an inverter and a coil winding of a motor or a generator, so that large torque and power values are generated, and the use of space is saved.

Description

technical field [0001] The invention relates to the field of lead frames for generators or motors, in particular to a lead frame for hub motors. Background technique [0002] An electric motor system generally comprises an electric motor, the control unit of which is arranged to control the power of the electric motor. Known motor types include induction motors, synchronous brushless permanent magnet motors, switched reluctance motors, and linear motors. Because of the high torque required to drive a vehicle, the most commonly used electric motors are three-phase motors. Three-phase electric motors generally comprise three coil windings, where each coil winding is arranged to generate a magnetic field associated with one of the three phases of an alternating voltage. In order to increase the number of magnetic poles formed in the motor, each coil winding usually has some coil subgroups distributed around the motor, and these coil subgroups are driven to generate a rotating...

Claims

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Application Information

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IPC IPC(8): H02K3/52H02K3/28
CPCH02K3/28H02K3/522
Inventor 齐晓刚陈锋马志敏王乾乾
Owner ZHEJIANG VIE SCI & TECH