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Line filter, image forming apparatus, and electronic device

A filter and line technology, applied in the field of image forming devices, electronic equipment, and line filters, can solve the problems of cable noise and cost increase, and achieve the effect of suppressing noise

Inactive Publication Date: 2014-06-04
KYOCERA DOCUMENT SOLUTIONS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When there is current flowing in the cable, the problem is that the unnecessary radiation of the cable will generate noise (Electro magnet Interference, EMI)
[0005] However, Figure 9 The width of the magnetic core 810 of the line filter 800 shown in (b) is smaller than Figure 9 The line filter 800 shown in (a) is about 2 times larger, resulting in an increase in cost

Method used

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  • Line filter, image forming apparatus, and electronic device
  • Line filter, image forming apparatus, and electronic device
  • Line filter, image forming apparatus, and electronic device

Examples

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Embodiment Construction

[0022] Embodiments of the line filter, image forming apparatus, and electronic equipment according to the present invention will be described below with reference to the drawings. However, the present invention is not limited to the following embodiments.

[0023] [Basic Structure: Line Filter]

[0024] refer to figure 1 An embodiment of the line filter 100 according to the present invention will be described. figure 1 It is a schematic diagram showing the line filter 100 according to the embodiment of the present invention. Line filter 100 includes magnetic core 10 and cable 20 . The line filter 100 suppresses noise generated by unnecessary radiation of the cable 20 by passing the cable 20 through the magnetic core 10 .

[0025] The magnetic core 10 is, for example, a ferrite core. An inner hole 11 having a shape corresponding to that of the cable 20 is provided in the magnetic core 10 . The bore 11 defined by the magnetic core extends in the through direction (x dire...

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Abstract

The invention provides a line filter, an image forming apparatus, and an electronic device. The line filter includes a flat plate-shaped cable and a flat magnetic core. A through hole having a shape corresponding to the cable is formed in the magnetic core. The cable includes: a first penetrating portion which enters the through hole in the magnetic core from an inlet of the through hole and is passed through an outlet of the through hole; a second penetrating portion which enters the through hole in the core from the inlet of the through hole and passes through the outlet of the through hole; and a first connecting portion which connects the first penetrating portion on a side of the outlet of the through hole to the second penetrating portion on a side of the inlet of the through hole without passing through the through hole. When viewed in a normal direction of a main surface of the magnetic core, the second penetrating portion overlaps with the first penetrating portion at least partially.

Description

technical field [0001] The present invention relates to a line filter, an image forming device and electronic equipment. Background technique [0002] In an electronic device, a planar flat cable is used to transmit signals from substrate to substrate. When a current flows in the cable, there is a problem that unnecessary radiation of the cable will generate noise (Electro magnet Interference, EMI). In order to suppress the noise generated by the unnecessary radiation of the cable, a line filter is used. [0003] Suppression of noise generated by unwanted radiation from cables is under study. Figure 9 is a schematic diagram showing the line filter 800 . Figure 9 The line filter 800 shown in (a) suppresses noise generated by unnecessary radiation of the cable 820 by passing the cable 820 through the magnetic core 810 . [0004] However, Figure 9 In the line filter 800 of (a), the suppression of the noise generated by the unnecessary radiation of the cable 820 is insuffic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F17/06
CPCG03G15/80H04N1/00H01R13/648H01F2017/065H01P3/10
Inventor 古城秀彦
Owner KYOCERA DOCUMENT SOLUTIONS INC
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