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Filtering device for motor, and motor

A filter device and filter circuit technology, which can be used in motors, printed circuits, electric vehicles, etc., can solve the problems of high cost and poor applicability, and achieve the effects of simple structure, high reliability and small size.

Pending Publication Date: 2021-12-10
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] - If some parts of the PCB hard board are damaged, the whole PCB hard board needs to be replaced, which is costly and poor in applicability

Method used

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  • Filtering device for motor, and motor
  • Filtering device for motor, and motor
  • Filtering device for motor, and motor

Examples

Experimental program
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Embodiment Construction

[0051] Exemplary embodiments of the present application are described below with reference to the accompanying drawings. It should be understood that these specific descriptions are only used to teach those skilled in the art how to implement the present application, but are not intended to exhaust all possible ways of the present application, nor are they used to limit the scope of the present application.

[0052] refer to Figure 1 to Figure 6B , the present application provides a filter device for a motor, which includes a flexible circuit board 10 , an insulating tube 20 , a first connecting wire 30 , a second connecting wire 40 and a potting material 60 .

[0053] The flexible circuit board 10 has a filter circuit 11 and a ground layer 12 , the ground layer 12 is wound into a cylindrical shape, and the filter circuit 11 is located on the inner surface side and / or the outer surface side of the ground layer 12 . The flexible circuit board 10 is wound into a cylindrical sh...

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PUM

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Abstract

The invention provides a filtering device for a motor, and the motor. The filtering device for the motor comprises: a flexible circuit board (10) which is provided with a filtering circuit (11) and a grounding layer (12), wherein the grounding layer (12) is wound into a cylindrical shape, and the filtering circuit (11) is located on the inner surface side and / or the outer surface side of the grounding layer (12); an insulating tube (20), wherein the flexible circuit board (10) is wound into a cylindrical shape and is accommodated in the insulating tube (20); a first connection line (30) connected to the filter circuit (11) and used for connecting the filter circuit (11) to a device (50) to be filtered; a second connection line (40) connected to the filter circuit (11) and used for connecting the filter circuit (11) to a control unit; and a potting material (60) which is located inside the insulating tube (20) and which insulates and seals at least the filter circuit (11).

Description

technical field [0001] The application relates to the field of motors, and in particular to a filter device for motors and a motor. Background technique [0002] In pure electric vehicles, some companies use PCB hard boards to filter the high-frequency harmonics of NTC (Negative Temperature Coefficient, negative temperature coefficient) sensors to improve the EMC (Electromagnetic Compatibility, electromagnetic compatibility) performance of the vehicle. One side of the hard PCB is connected to the NTC sensor, and the other side is connected to the motor control unit (PEU) through a low-voltage plug connector. The high-frequency harmonics of the NTC sensor are caused by the motor. There is a filter circuit on the PCB hard board, and the PCB hard board will filter the high-frequency harmonics of the NTC sensor, which will improve the EMC performance of the vehicle. [0003] There are following problems in above-mentioned technology: [0004] -NTC sensor and PCB hard board ar...

Claims

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Application Information

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IPC IPC(8): H02K11/02H05K1/02
CPCH05K1/0224H05K1/028H02K11/02Y02T10/64
Inventor 欧阳鹏李南刘磊
Owner SCHAEFFLER TECH AG & CO KG