JPH0512973Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Overview of the field] This invention is based on the first core column of the square-shaped magnetic core.
It is an object of the present invention to provide a transformer coil having a structure that can be stably and easily mounted on a substrate when a divided rotating bobbin is used as a built-in winding.

[Contents and problems of the conventional technology] Fig. 4 shows a cross-sectional view of a two-split rotating bobbin for winding windings forming a conventional transformer coil, which is assembled into a core column. The shape of the magnetic core forming the transformer coil is shown.

The magnetic core (hereinafter referred to as core) 11 used in the conventional coil transformer has a square shape, and has a bottom surface 4 of each of the first core column 2 on which the winding is applied and the second core column 33 facing thereto. The bottom surface 55 is on the same plane, and a two-split rotating bobbin 6 is attached to the first core column 2, and a coil transformer is constructed by winding wires around the bobbin.

In this structure, when attaching to the board 7, the core 1
is tilted and the installation is unstable.

[Purpose of the invention] The purpose of the invention is to provide a coil transformer that eliminates the instability of the conventional method without increasing the number of parts, and that can be stably and easily attached to a board.

[Structure of the invention] The present invention is a magnetic core formed into a rectangular shape, in which one core pillar facing parallel to the core pillar on which the winding is applied is made relatively high. The coil transformer is characterized in that the outer diameter of the split rotating bobbin attached to the coil transformer is the same height as the height of one of the core columns.

[Explanation based on Examples] Examples of the present invention will be described below with reference to the drawings of FIGS. 1, 2, and 3.

In FIGS. 1, 2, and 3, the first core column around which the second core column 3 is wound is not wound among the two core columns facing in parallel with each other in the square-shaped core 1. 2, and has a core structure in which the height of the second core column 3 is approximately the same as the collar 62 of the two-split rotating bobbin 6. By winding the two-split rotating bobbin 6 that fits into the first core column 2 of the core 1 of the structure according to the present invention to form a coil transformer, when it is attached to the board 7, the bottom surface 5 of the second core column Winding bottom 8
The coil transformer has a structure in which both sides of the coil are in contact with the substrate 7, and can be stably and easily attached to the substrate 7.

[Effects of the invention] As described above, by configuring a coil transformer using the magnetic core of the invention, coils and
It is possible to provide a coil transformer that can be stably and easily attached to a board without increasing the number of parts when creating a transformer.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a two-split rotating bobbin with a square-shaped magnetic core and a winding wire in the transformer coil of the present invention. FIG. 2 is a perspective view of the square-shaped magnetic core of the present invention. FIG. 3 is a perspective view of a two-part rotating bobbin. FIG. 4 is a perspective view of a coil transformer using a conventional square-shaped magnetic core. FIG. 5 is a perspective view of a conventional square-shaped magnetic core. 1... Magnetic core, 11... Conventional magnetic core, 2...
...First core column, 3... Second core column, 4... Bottom surface of first core column, 5... Bottom surface of second core column, 6... 2-split rotating bobbin, 7... Board, 8... Winding wire Bottom, 9...
... Winding wire, 33 ... Conventional second core column, 55 ... Bottom surface of conventional second core column, 61 ... Center hole, 62 ...
...Bobbin tsuba.

Claims (1)

[Scope of utility model registration request] A two-split rotating bobbin in which one core column facing parallel to the core column on which the wire is wound around a magnetic core formed in a rectangular shape is made relatively high, and the winding wire is assembled into the core column on which the wire is wound. A coil transformer characterized by being formed horizontally so that the height of the core pillar is the same as the height of one core pillar.