JPH0217816U

JPH0217816U -

Info

Publication number: JPH0217816U
Application number: JP9711288U
Authority: JP
Priority date: 1988-07-22
Filing date: 1988-07-22
Publication date: 1990-02-06

Description

[Brief explanation of drawings]

第１図から第１６図まではいずれもこの考案の
１実施例を示すもので、第１図は内鉄形コア素材
の斜視図、第２図は同じく内鉄形コア素材を組合
せた斜視図、第３図は同じく内鉄形コア素材を用
いたトランスの１例を示す斜視図、第４図は上型
と下型との打ち抜き代を示す要部の拡大平面図、
第５図は弧状対接部のギヤツプの状態を示す拡大
平面図、第６図はＬ形鉄心素材の対接状態の平面
図、第７図および第８図はそれぞれ弧状対接部の
形成個所を異ならせたコアの対接状態を示す平面
図、第９図および第１０図はそれぞれ―Ｉ形お
よびＥ―Ｉ形コアの同じく平面図、第１１図、第
１２図および第１３図はそれぞれ外鉄型コアであ
るＥ―Ｅ形およびＦ―Ｆ形鉄心素材の対接状態を
示す平面図、第１４図および第１５図はそれぞれ
この考案のさらに他の例である対をなすフエライ
トコアブロツクの斜視図、第１６図および第１７
図は弧状対接部の曲率半径が小さい例を示す平面
図、第１８図および第１９図はそれぞれ閉磁路コ
アの不適切の理由を示す説明図である。１…対をなすコア、２，３…弧状対接部、Ｆ…
フエライトコアブロツク。 Figures 1 to 16 all show one embodiment of this invention; Figure 1 is a perspective view of a core material, and Figure 2 is a perspective view of a combination of core materials. , FIG. 3 is a perspective view showing an example of a transformer using the inner core material, FIG. 4 is an enlarged plan view of the main parts showing the punching allowance between the upper mold and the lower mold,
Fig. 5 is an enlarged plan view showing the gap state of the arcuate contact portion, Fig. 6 is a plan view of the L-shaped core material in the contact state, and Figs. 7 and 8 are the formation points of the arcuate contact portion, respectively. FIGS. 9 and 10 are plan views showing the contact states of the cores with different cores, respectively. 14 and 15 are plan views showing the state of contact between E-E type and F-F type core materials, which are outer iron type cores, and FIGS. 14 and 15 respectively show a pair of ferrite core blocks which are still other examples of this invention. Perspective views of FIGS. 16 and 17
The figure is a plan view showing an example in which the radius of curvature of the arcuate contact portion is small, and FIGS. 18 and 19 are explanatory diagrams each showing the reason why the closed magnetic circuit core is inappropriate. 1... Paired cores, 2, 3... Arc-shaped opposing parts, F...
Ferrite core block.

Claims

[Claims for Utility Model Registration] 1. In the core to be inserted into the coil, a pair of cores 1, 1, an arcuate contact portion 2 of substantially the same shape formed at a location where these pair of cores 1, 1 are in contact with each other, 3
A closed magnetic circuit core consisting of. 2. The closed magnetic circuit core according to claim 1, wherein the planar shapes of the arcuate contact portions 2 and 3 are substantially the same circular arc shapes. 3. The closed magnetic circuit core according to claim 1 or 2, wherein the pair of cores 1, 1 are punched and formed using the same punching die. 4. A closed magnetic circuit core according to claim 1, 2 or 3, wherein the pair of cores 1, 1 are made of ferrite core block F. 5. The closed magnetic circuit core according to claim 1, wherein a partial gap is formed in each of the arcuate contact portions 2 and 3 by abutting the arcuate contact portions 2 and 3 against each other.