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magnetic element

A technology of magnetic components and magnetic cores, applied in electrical components, inductances with magnetic cores, components of transformers/inductors, etc., can solve problems such as difficulty in application

Active Publication Date: 2018-02-09
SUMIDA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In such an inductor, it is difficult to apply the configurations disclosed in the above-mentioned Patent Documents 1 to 6.

Method used

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no. 1 approach

[0070] Hereinafter, an inductor 10 as a magnetic element according to the first embodiment of the present invention will be described with reference to the drawings. In addition, the inductor 10 in this embodiment and the second and third embodiments described later is, for example, a high-voltage-resistant inductor used in an LED drive circuit.

[0071] Also, in the following description, the figure 1 The up-down direction in the figure is referred to as the Z direction, the side where the upper flange portion 21 of the drum core 20 is located when viewed from the base member 50 described later is referred to as the upper side (Z1 side), and the side opposite thereto is referred to as the lower side. (Z2 side). In addition, let the arrangement direction of a pair of mounting terminals 60 be the X direction, and figure 1 The right side in the graph is defined as the X1 side, and the opposite left side is defined as the X2 side. Also, let the direction perpendicular to the X...

no. 2 approach and no. 3 approach

[0112] Hereinafter, a second embodiment and a third embodiment of the present invention will be described. In addition, in the following description, basically the same reference numerals will be used for the same configuration as that described in the above-mentioned first embodiment. However, in the structure of the second embodiment, the letter "B" is added after the symbol, and in the structure of the third embodiment, the letter "C" is added after the symbol.

[0113] Figure 7 It is an exploded perspective view showing the structure of the inductor 10B according to the second embodiment, and shows that the toroidal core 30B is removed (refer to Figure 9 ) and the state after the coil 40B (not shown). Figure 8 It is a side view of the inductor 10B concerning 2nd Embodiment. Figure 9 It is a perspective view which shows the structure of the inductor 10B which concerns on 2nd Embodiment including the ring core 30B.

[0114] Such as Figure 7 As shown, in inductor 10...

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PUM

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Abstract

The invention provides a magnetic element; a winding start side and a winding stop side of a wire of a surface mounted magnetic element can be mutually separated; the magnetic element (10) comprises a drum type magnetic core (20), a coil (40) arranged on a coil rack (24), a pedestal part (50) with a base portion (51) and a carrier platform (54) protruding from the base portion (51) and carrying a lower flange portion (23), and a mounting terminal (60) arranged on the pedestal part (50) and electrically connected with an external substrate. The lower flange portion (23) is provided with a notch (231); the wire (41) extends to the mounting terminal (60) from the notch (231); the pedestal part (50) is provided with a hang portion (57) arranged in the position closer to the base portion when compared with the bottom of the lower flange portion (23).

Description

technical field [0001] The present invention relates to magnetic elements. Background technique [0002] In recent years, LED lighting equipment using LEDs (Light Emitting Diodes, light emitting diodes) as lighting fixtures has become popular as a substitute for incandescent lamps and other lighting fixtures. LED lighting equipment is equipped with an LED driving circuit, and it is necessary to use a high-voltage-resistant inductor for the LED driving circuit. As such an inductor, there exist those shown in patent documents 1-6, for example. [0003] [Prior Art Literature] [0004] 【Patent Literature】 [0005] Patent Document 1: Japanese gazette, Japanese Patent Laid-Open No. 2010-161260 [0006] Patent Document 2: Japanese Gazette, Utility Model Registration No. 3186764 [0007] Patent Document 3: Japanese Gazette, Utility Model Registration No. 3186765 [0008] Patent Document 4: Japanese Gazette, Utility Model Registration No. 3186766 [0009] Patent Document 5: Ja...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F17/04H01F27/30H01F27/29
CPCH01F17/041H01F17/045H01F27/292H01F27/306
Inventor 山口乔之
Owner SUMIDA CORP