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coil parts

A technology of coil components and coils, applied in transformer/inductor parts, electrical components, transformer/inductor coils/windings/connections, etc., can solve problems such as inability to adjust

Active Publication Date: 2020-05-01
SUMIDA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] However, in the above-mentioned published technology, such as Figure 7 As shown, even if there is a desire to increase the initial inductance value, and increase the inductance value under the specified current value to the specified value (in Figure 7 In the case where the current is 50A, the inductance value is set to 26μH) such that the target characteristic (at Figure 7 In the case of a line connecting square-shaped dots), it cannot be adjusted to satisfy both, and the initial inductance value and the inductance value at a current of 50A are both much lower than The DC superposition characteristic of the value of the target value (at Figure 7 A line connecting the points in a rhombus shape)

Method used

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Embodiment Construction

[0039] Hereinafter, embodiments of the coil component of the present invention will be described in detail with reference to the above-mentioned drawings. In addition, the coil component of this embodiment uses the reactor which is a typical example.

[0040]

[0041] Such as figure 1 As shown, the reactor 1 according to one embodiment of the present invention includes: two coils 14A, 14B arranged side by side to generate a magnetic field, and a closed magnetic coil forming a closed loop through which the magnetic flux generated by the two coils 14A, 14B passes. In addition, the core 10 includes: a pair of I-shaped base cores 11A, 11B arranged to face each other and inserted into the respective coils 14A, 14B, and two base cores 11A, A pair of connection core part 11C (1st connection core part) and 11D (2nd connection core part) arrange|positioned in parallel between them in the form of 11B.

[0042] The above-mentioned coils 14A and 14B are, for example, edge-to-edge coi...

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Abstract

The invention relates to a coil component having a core (10) constituting a closed magnetic field through which a closed loop of magnetic flux generated by two coils (14A, 14B) arranged side by side and generating a magnetic field passes. Road, the core (10) has a pair of I-shaped base cores (11A, 11B) facing each other, and a pair of connecting cores arranged in parallel between them in a manner that connects the two base cores (11A, 11B). (11C, 11D). The connection cores (11C, 11D) are respectively formed by arranging three unit connection cores (12A-F) in a straight line, and each unit connection core (12A-F) is provided with a cylindrical The protrusions ( 122 a ) thereby form gaps of two stages, a small gap and a large gap, between adjacent unit cores ( 11A, 11B, 12A to F).

Description

technical field [0001] The present invention relates to a coil component composed of a reactor mounted on, for example, an electric vehicle or a hybrid vehicle. Specifically, it relates to a coil component provided with an appropriate gap on a magnetic circuit of a closed magnetic circuit. Background technique [0002] Conventionally, this kind of coil component is constituted by winding a winding wire on a magnetic core of a closed magnetic circuit. Generally speaking, in order to prevent the reduction of the inductance value of the winding wire when DC is superimposed, it is implemented by setting appropriate Countermeasures to reduce the influence of magnetic saturation by the gap (gap) part. [0003] For example, the technology described in the following Patent Document 1 relates to a ferrite core for a smoothing choke coil, which is composed of a pair of E-shaped ferrite cores that are combined and abutted so that the tips of three leg parts are abutted against each oth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F27/24H01F27/28
CPCH01F27/24H01F27/2895H01F13/00H01F27/26H01F29/10H01F29/146H01F2029/143
Inventor 川岛浩山口乔之
Owner SUMIDA CORP