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transformer

A technology for transformers and reels, applied in the field of transformers, can solve the problems of poor coupling, smaller magnetic flux link area, and insulation damage, etc., and achieve the effect of good magnetic coupling and ensuring voltage resistance.

Active Publication Date: 2018-04-03
SUMIDA CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, when the potential difference between the primary winding and the secondary winding becomes large, corona discharge or the like may occur, and there is a possibility of insulation breakdown due to the corona discharge
[0009] On the other hand, in split-wound transformers, problems such as corona discharge are less likely to occur, but there is a problem that the interlinkage area of ​​magnetic flux becomes smaller and the coupling is not good.
[0010] In addition, in the configuration shown in Patent Document 1, there is a problem that the number of turns of the primary winding is reduced.
Furthermore, in the structure shown in Patent Document 1, after winding the electric wire around the winding core on the inner peripheral side to form the secondary winding, the electric wire must be wound in the slot on the outer peripheral side to form the primary winding. The more restrictive problem

Method used

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Embodiment Construction

[0050] Hereinafter, the fitting type bobbin 10 used for the transformer 1 which concerns on one Embodiment of this invention is demonstrated based on drawing. In addition, in the following description, the first to third configuration examples of the fitting-type bobbin 10 will be described first, and then the transformer 1 using the fitting-type bobbin 10 will be described.

[0051] In addition, in the following description, the XYZ Cartesian coordinate system may be used for description, and the figure 1 The up-and-down direction in the diagram is referred to as the Z direction, and the protruding side of the connecting terminal 50 is referred to as the lower side (Z2 side), and the opposite side of the upper locking portion 24 is referred to as the upper side (Z1 side). In addition, let the axial direction of the fitted bobbin 10 be the X direction, and figure 1 The right side is defined as the X1 side, and the opposite left side is defined as the X2 side. Also, let the d...

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Abstract

The divided winding type transformer provided by the present invention can ensure the withstand voltage between the primary winding and the secondary winding, and can make the magnetic coupling become good; the primary winding (30) and the secondary winding ( 40) Arranged in an opposing state in the axial direction; the transformer (1) has a first split coil former (20A) and a second split coil former (20B), and the first split coil former (20A) is arranged in the axial direction There are a plurality of first split reel parts (21) having a reel part (213), and a first fitting recess (25) is provided between adjacent first split reel parts (21). The two-split bobbin (20B) is provided with a plurality of second split reel parts (21) provided with reel parts (213) in the axial direction, and between adjacent second split reel parts (21) A second fitting recess (25) is provided.

Description

technical field [0001] The present invention relates to transformers. Background technique [0002] There are various types of transformers that are one type of magnetic elements, and among them, there is a type (laminated type) in which a primary winding and a secondary winding are stacked on the same bobbin portion. In this laminated transformer, since the primary winding and the secondary winding are laminated, the leakage magnetic flux is reduced, and the magnetic coupling between the primary winding and the secondary winding is improved. [0003] On the other hand, as a type different from the above-mentioned type, there is also a divided winding type transformer in which the primary winding and the secondary winding are wound on different bobbins and arranged on the same axis. In this split winding type transformer, since the primary winding and the secondary winding are separated by the flange of the bobbin, a creepage distance can be ensured and high insulation can ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F27/30
Inventor 畠山刚
Owner SUMIDA CORP
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