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Two semi-circular lead frames used for different sub-motors

A lead frame and semi-circular technology, applied in the field of semi-circular lead frames, can solve problems such as the influence of motor power generation capacity, and achieve the effects of reducing PCB cost, convenient processing and reducing waste.

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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  • Two semi-circular lead frames used for different sub-motors
  • Two semi-circular lead frames used for different sub-motors
  • Two semi-circular lead frames used for different sub-motors

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] This embodiment provides a lead frame 255 for coupling the inverter of a motor or generator to a DC power supply; the motor in this embodiment is an in-wheel motor for vehicle wheels. Such as figure 2 As shown, the in-wheel motor includes a stator 252 including a circumferential support as a heat sink 253, a plurality of coils 254, two control devices 300 not shown, which are mounted circumferentially at the rear of the stator. On the bracket 253, it is used to drive the coil. A capacitor and a lead frame 255 are mounted between the axial edge of the coil 254 and an axial flange formed on the circumferential support 253 for connecting the control device to the coil 254 . The coil 254 is embedded on the stator teeth 800 to form a coil winding; the stator cover is installed at the rear of the stator 252 to surround the control device and the annular capacitor to form the stator 252, which is then fixed to the vehicle and will not be opposed to each other during use. ro...

Embodiment 2

[0087] This embodiment provides a generator or motor with the stator described in Embodiment 1. The lead frame 255 of embodiment 1 or embodiment 2 is installed on the circumferential support 550, and the coil winding is connected to the lead frame 255 to form a star connection; the lead frame 255 is installed on the circumferential support adjacent to the coil winding.

Embodiment 3

[0089] To allow for increased current, and thus increased torque, one or more circuit board layers may be duplicated. In this embodiment, the printed board of the first lead frame also includes a sixth circuit board layer, the sixth circuit board layer includes a ninth conductive layer, and the sixth circuit board layer has the same function as the first circuit board layer; it also includes a seventh circuit Board layer, the seventh circuit board layer includes the tenth conductive layer, the effect of the ground circuit board layer and the second circuit board layer is the same; also includes the eighth circuit board layer, the eighth circuit board layer includes the eleventh conductive layer, the eighth circuit board layer The functions of the circuit board layer and the third circuit board layer are the same; a ninth circuit board layer is also included, the ninth circuit board layer includes the twelfth conductive layer, and the functions of the ninth circuit board layer a...

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Abstract

The invention relates to the field of motors, and discloses two semi-circular lead frames for different sub-motors, which comprise two semi-circular lead frames, wherein each lead frame comprises a printed circuit board with a plurality of circuit board layers, the first circuit board layer is arranged to be electrically coupled to a first coil winding of the first set of coil windings and a firstbranch of the 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 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 a large current between the inverter and the coil winding of the motor, thereby generating a large torque and a large power value, and saving space.

Description

technical field [0001] The invention relates to the field of lead frames, in particular to two semicircular lead frames used for different sub-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 ro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K11/33H02K3/50H02K3/28H02P25/16
CPCH02K3/28H02K3/50H02P25/16H02K11/33
Inventor 陈锋马志敏齐晓刚王乾乾
Owner ZHEJIANG VIE SCI & TECH