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Electronic equipment and its filter inductors

A technology for filtering inductors and electronic equipment, which is applied to transformer/inductor cores, measuring current/voltage, transformer/inductor components, etc. Issues such as size, lack of effectiveness, etc.

Active Publication Date: 2021-09-07
SIEMENS AUTOMOTIVE EPOWERTRAIN SYST SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Therefore, in the prior art, in order to filter out common mode / differential mode noise and electromagnetic interference, and measure the input current, the high-power power supply module must have two filter inductors 100 and a DC sensor module 150, but these two modules respectively occupy a certain space inside the high-power power supply module, so that in product design planning, the overall volume of the high-power power supply module cannot be reduced; in addition, as mentioned above As mentioned, due to the difficulty in controlling the thickness of the adhesive layer 33, the effect of the filter inductor 100 on the attenuation of common mode and differential mode noise is not good.

Method used

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  • Electronic equipment and its filter inductors
  • Electronic equipment and its filter inductors
  • Electronic equipment and its filter inductors

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Embodiment Construction

[0032] The substantive features and advantages of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments, but the present invention is not limited to the listed embodiments.

[0033] Figure 3a is a cross-sectional schematic view of the first embodiment of a filter inductor 200 of the present invention, and Figures 3b to 3d is a step-by-step schematic diagram of the assembly process of filter inductor 200 . The filter inductor 200 is disposed at an input end of an electronic device, such as a high-power power supply module of a high-power power system. The filter inductor 200 includes a magnetic core 22 , a housing 44 , at least one conductor channel, at least one conductor 11 , a central post 202 , side posts 201 , at least one central gap 65 , and a sensor 77 . Preferably, the electronic device is an inverter.

[0034] The magnetic core 22 is used to eliminate common mode (CM) and differential mode (DM) noise...

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Abstract

The present invention relates to a filter inductor (filter inductor) (200), which can be installed at an input end of an electronic device; the filter inductor (200) includes an integrally formed magnetic core (22), at least one Conductor (11), at least one central void (65), and a sensor (77); the at least one conductor (11) is disposed within the magnetic core (22); at least one central void (65), formed in the magnetic core (22); the sensor (77) is placed in the at least one central space (65) for measuring an input current.

Description

technical field [0001] The present invention relates to an electronic device, in particular to a filter inductor of an electronic device. Background technique [0002] A high power power system usually has a high power power module, such as a converter module or an inverter module. The high-power power supply module has a filter inductor for filtering common-mode (CM for short) and differential-mode (DM for short) noise within a frequency range to eliminate electromagnetic interference. However, this type of high-power power supply module usually cannot meet the requirements of the International Special Committee on Radio Interference (CISPR, formerly known as Comité International Spécial des Perturbations Radioélectriques) in the full frequency range or at least in some frequency ranges. EMI) regulatory standards and other standards, especially in the frequency range required by the drive system of an electric vehicle (EV) or a hybrid electric vehicle (HEV) or / and a high f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F27/24H01F27/40G01R19/00
CPCG01R19/0092H01F27/24H01F27/402
Inventor 沈唐兵李双佳单亮
Owner SIEMENS AUTOMOTIVE EPOWERTRAIN SYST SHANGHAI CO LTD