JPH0361316U

JPH0361316U -

Info

Publication number: JPH0361316U
Application number: JP12201889U
Authority: JP
Priority date: 1989-10-17
Filing date: 1989-10-17
Publication date: 1991-06-17
Anticipated expiration: 2004-10-05
Also published as: JPH0638410Y2

Description

[Brief explanation of drawings]

第１図は、この考案に係るシールド板の、トラ
ンスへの組付け前の状態を示す斜視図、第２図は
、第１図に示したシールド板によりトランスの入
力用巻線を包み込むための手順を説明するための
斜視図、第３図は、そのシールド板により入力用
巻線を包み込んだ状態を示す斜視図、第４図は、
第３図に示したようにシールド板によつて包み込
まれた入力用巻線を同心配置型のトランスに組み
込んだ構造の１例を示す外観斜視図、第５図は第
４図の−線縦断面図、第６図は、入力用巻線
と出力用巻線とを並列させて鉄心に配置した構造
のトランスに対しこの考案を適用した例を示す斜
視図である。１０……シールド板、１２……襞、１４……入
力用巻線、１６……鉄心挿着孔、１８，１８′…
…入力用巻線の外側縁、２０……鉄心、２２，２
８，３０……絶縁物、２４……出力用巻線、３２
……入力用巻線、３４……出力用巻線、３６……
鉄心。 FIG. 1 is a perspective view showing the state of the shield plate according to the invention before it is assembled to the transformer, and FIG. 2 is a perspective view showing the shield plate shown in FIG. A perspective view for explaining the procedure, FIG. 3 is a perspective view showing the input winding wrapped in the shield plate, and FIG. 4 is a perspective view for explaining the procedure.
As shown in Fig. 3, an external perspective view showing an example of a structure in which the input winding wrapped by a shield plate is incorporated into a concentric type transformer, and Fig. 5 is a vertical cross-section taken along the - line in Fig. 4. The plan view and FIG. 6 are perspective views showing an example in which this invention is applied to a transformer having a structure in which an input winding and an output winding are arranged in parallel on an iron core. 10...Shield plate, 12...Folds, 14...Input winding, 16...Iron core insertion hole, 18, 18'...
...Outer edge of input winding, 20... Iron core, 22,2
8, 30... Insulator, 24... Output winding, 32
...Input winding, 34...Output winding, 36...
Iron core.

Claims

[Scope of Claim for Utility Model Registration] 1. A belt-shaped thin metal sheet material is sequentially folded in the longitudinal direction so that the folds are perpendicular to the longitudinal direction of the material, and pleats are provided over the entire length or partially, and after the pleat processing. , the length is long enough to go around once along the inner circumferential surface of the core insertion hole of the input winding, and the width is long enough to go around once along the surface of the input winding in a direction interlinking with it. A transformer shield plate comprising: 2. In a transformer in which an input winding and an output winding are arranged concentrically with respect to an iron core, a shield plate is interposed between the two windings, and the shield plate is connected to an external ground terminal, a band-shaped metal The thin plate material is sequentially folded in the longitudinal direction so that the creases are perpendicular to the longitudinal direction, and pleats are applied over the entire length or partially. After the pleating process, the core insertion hole of the input winding is formed. A shield plate having a length enough to make one turn along the inner circumferential surface and a width enough to make one turn along the surface of the input winding in a direction interlinked therewith is attached to the input winding. The shield plate is formed into a cylindrical shape along the inner peripheral surface of the wire core insertion hole, and the shield plate formed into the cylindrical shape is inserted into the input winding core insertion hole, at least at the bending part of the input winding. Insert and arrange the shield plate so that the fold forming part is located, and bend the parts of the cylindrical shield plate that protrude from both ends of the input winding core insertion hole at right angles to the outside. The transformer further comprises: a portion of the input winding protruding from the outer edge thereof is bent at right angles along the outer peripheral surface, so that the entire input winding is wrapped in the shield plate. 3. In a transformer in which an input winding and an output winding are arranged in parallel around a common core,
A strip-shaped thin metal plate material is sequentially folded in the longitudinal direction so that the folds are perpendicular to the longitudinal direction, and pleats are applied over the entire length or partially. After the pleating process, the iron core of the input winding is inserted. A shield plate having a length enough to make one turn along the inner circumferential surface of the contact hole and a width enough to make one turn along the surface of the input winding in a direction interlinking therewith, It is formed into a cylindrical shape along the inner peripheral surface of the core insertion hole of the input winding, and the shield plate formed into the cylindrical shape is inserted into the core insertion hole of the input winding. Insert the shield plate so that the fold forming part is located at the bending point, and insert the parts of the cylindrical shield plate that protrude from both ends of the input winding core insertion hole at right angles to the outside. bend,
Furthermore, the transformer is characterized in that the input winding is entirely wrapped in the shield plate by bending a portion projecting from the outer edge of the input winding at a right angle along the outer peripheral surface.