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coil device

A coil device and coil technology, applied in the direction of transformer/inductor coil/winding/connection, transformer/inductor parts, electrical components, etc., can solve the problems of difficulty in miniaturization, increase in insulation distance requirements, etc., and achieve extension Effects of insulation distance and excellent insulation characteristics

Active Publication Date: 2020-03-27
TDK CORPARATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, in a high-power transformer used in the field of large-scale solar photovoltaic power generation, etc., the voltage applied to the coil device becomes high voltage, so the insulation distance represented by creepage distance and clearance The required value also becomes larger, and it is difficult to miniaturize in the existing structure

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0071] figure 1 It is a perspective view of the coil device 10 which concerns on one Embodiment of this invention. The coil device 10 has a first bobbin 20 , a second bobbin 30 , a central cover member 40 , an end cover member 50 , and a core 60 . In addition, the insulating tape 12 is wound on the surface of the core 60 .

[0072] In addition, regarding the coil device 10 according to the embodiment, as figure 1 As shown, the direction perpendicular to the installation surface of the coil device 10 is taken as the Z-axis direction, parallel to the installation surface and as figure 2 The direction connecting the two side leg portions 64ab and 64bb of the core 60 passing through the first frame 20 and the second frame 30 on both sides is taken as the Y-axis direction, and the direction perpendicular to the Z-axis direction and the Y-axis direction is taken as the X-axis direction. Axis directions are described. In addition, the Z-axis positive direction is defined as a firs...

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PUM

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Abstract

Provided is a coil device capable of downsizing and capable of suitably securing insulation characteristics. The coil device comprises: a center cover member having a partition plate on which a through hole is formed and a ring-shaped outer peripheral cover portion extending from an outer peripheral edge of the partition plate in a first direction perpendicular to the partition plate; a first bobbin having a first flange portion opposed to a surface of the partition plate and a hollow cylindrical first hollow cylinder portion protruding in the first direction from the first flange portion and communicating with the through hole, the first flange portion and the outer periphery of the first hollow cylinder portion being surrounded by the outer peripheral cover portion; a second bobbin having a second flange portion opposed to the other surface of the partition plate and a hollow cylindrical second hollow cylindrical portion protruding from the second flange portion in a second direction opposite to the first direction and communicating with the through hole; a first coil; a second coil; and a core.

Description

technical field [0001] The present invention relates to a coil device suitable for use as a power supply transformer or the like. Background technique [0002] In a coil device used as a transformer or the like, it is necessary to properly secure insulation between the primary coil and the secondary coil, and between the primary coil and the secondary coil and the core. On the other hand, from the viewpoint of miniaturization of the power supply equipment, downsizing of the coil device included in the power supply equipment is also required. For example, in a high-power transformer used in the field of large-scale solar photovoltaic power generation, etc., the voltage applied to the coil device becomes a high voltage, so the insulation distance represented by creepage distance and clearance The required value of also becomes large, and it is difficult to miniaturize in the existing structure. [0003] prior art literature [0004] patent documents [0005] Patent Documen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F27/30H01F27/32
CPCH01F27/306H01F27/324
Inventor 前田浩熊谷胜春田克己
Owner TDK CORPARATION