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Common mode or differential mode inductor, manufacturing method thereof and circuit system

A differential-mode inductor, common-mode technology, used in the field of manufacturing common-mode or differential-mode inductors, can solve problems such as reducing system reliability, difficult to wrap magnetic cores, and high-tolerance dimensional changes

Pending Publication Date: 2022-01-04
易达有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cooling system has several disadvantages: it reduces overall power efficiency, increases cabinet size, increases overall power system cost, and reduces overall system reliability
Therefore, the wire is relatively stiff, making it difficult to wrap around the core
Manual production methods result in high tolerances (i.e., large variations in the size of each CM inductor), which makes the mounting and soldering process of CM inductors to the printed circuit board difficult to mechanize

Method used

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  • Common mode or differential mode inductor, manufacturing method thereof and circuit system
  • Common mode or differential mode inductor, manufacturing method thereof and circuit system
  • Common mode or differential mode inductor, manufacturing method thereof and circuit system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0116] first reference Figures 5a-5d , the inductor 100 has three main parts: the magnetic core 102 , the coil 104 and the support device 110 . These parts will be described in detail below.

[0117] Core 102 as Figure 5d As shown, it is cylindrical, having a first end face 102a, a second opposing end face 102b, and a longitudinal central axis I1 defined by an opening 102d passing through the magnetic core 102. The outer side between the first end face and the second end face is designated 102c.

[0118] Figure 5e Another magnetic core 102 is shown, which is annular and has an elliptical cross-section. End faces 102a, 102b, opening 102d, outer side 102c are also Figure 5e Instructions.

[0119] Additionally, the magnetic core 102 may be a cylinder with chamfered edges, or it may even be annular.

[0120] The coil 104 includes an insulated wire 105 wound around a magnetic core 102 with a plurality of turns a1, a2, . . . , aN. The insulated wire 105 has two ends 105a...

Embodiment 2

[0151] now refer to Figures 7a-7d . Only the supporting device 110 and the magnetic core 102 are shown here, and the coil is not shown.

[0152] The support device 110 here comprises a base element 112 and a PCB contact surface 113 . However, the support means 110 here only comprises a single alignment element 120 . A single alignment element 120 must here have distal ends 120a extending in two different directions, ie the distal ends 120a themselves must define an alignment plane AP.

[0153] Here the single alignment element 120 is disposed through the opening 102d of the magnetic core 102 . The end face 121 defining the alignment plane AP is substantially circular. Also shown, the alignment element 120 includes a slit 122 at its end for receiving the spacer element 140 .

[0154] The coil spacer 140 includes an alignment surface 142 which will be aligned with the alignment plane AP during the manufacturing step of pushing the coil (together with the magnetic core) int...

Embodiment 3

[0156] now refer to Figure 9a and Figure 9b . Here, the supporting device 110 further includes a third alignment element 128, the proximal end 128b of which is connected to the base element 112, and the distal end 128a is disposed at a third distance from the PCB contact surface 113, wherein the distal end of the first alignment element 120 120a, distal end 125a of second alignment element 125, and distal end 128a of third alignment element 128 collectively define an alignment plane AP.

[0157] The third alignment element 128 is disposed here to pass through the opening 102d of the magnetic core 102 , which is similar to the second embodiment above. Therefore, this third embodiment can be regarded as a combination of the above-mentioned first and second embodiments.

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Abstract

The present invention provides to a common mode or differential mode inductor, a manufacturing method thereof and a circuit system. The common mode or differential mode inductor includes a core, a first coil including a first insulated wire wound with a number of turns around the core, and a supporting device for supporting the core and the first coil. The supporting device includes a base element having a PCB contacting surface; and an first alignment element having a proximal end connected to the base element and a distal end provided at a distance from the PCB contacting surface, wherein the distal end is defining an alignment plane. The core has a first end plane and a second end plane, wherein the first end plane is facing the alignment plane. The second end plane is facing the base element.

Description

technical field [0001] The present invention relates to a method of manufacturing common-mode or differential-mode inductors. The invention also relates to such common-mode or differential-mode inductors. The invention further relates to circuitry having such common or differential mode inductors. Background technique [0002] The outdoor power supply system (power supply system) is usually used to supply power to the outdoor power system. An example of such an outdoor power system is telecommunications equipment, such as a telecommunications base station. Such telecommunication base stations are usually supplied with a 48V direct current (DC) voltage, which is provided from a power supply system adjacent or close to the base station. [0003] The power supply system may include an alternating current (AC) / DC converter for converting the AC voltage from the AC mains (or AC generators using fossil fuels, etc.). [0004] Alternatively, the power supply system may also incl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F17/04H01F17/06H01F27/30H05K1/18
CPCH01F17/045H01F17/06H01F27/306H05K1/181H01F27/266H01F17/062H01F27/2895H01F27/292H01F27/06H01F27/2828H01F37/00H01F2017/0093H01F2027/065H01F27/027H01F27/324H01F41/08
Inventor C·阿梅尔H·哈夫诺J·T·布拉斯塔德K·哈根
Owner 易达有限公司