JPS59181510A - Iron core of induction electric apparatus - Google Patents

Abstract

PURPOSE:To obtain iron core which does not result in deterioration of characteristic by distortion during use and has excellent characteristics by providing a bonding area at least to one of the internal and external circumferencial areas and setting a total volume of such bonding area to a particular percentage or less of total volume of core. CONSTITUTION:A bonding layer 4 of a normal temperature setting type bonding agent is formed, for example, at the winding start and winding end portions of a wound amorphous magnetic alloy 1. Manufacturing steps are as follow: the winding start and end portions of iron core are impregnated with the bonding agent after completing the heat processing in order to form a bonding layer 4. Thereafter, winding cores 2 and 3 are splitted and removed. The iron core is not deformed and supports its own weight because of rigidity of these bonding layers 4. The bonding layer 4 is selected to either of internal and external circumferencial portions in case the iron core is small in size. When a volume of bonding portions is set to 50% or more of total volume of core, low loss characteristic of amorphous magnetic alloy may be deteriorated.

Description

[Detailed description of the invention] [Technical portion of the invention! f] This article relates to an induction electric core using an amorphous magnetic alloy, and relates to an electric iron core that can prevent deformation due to external forces and deterioration of the magnetic core due to this. .

[Technical background of digits and Ming and its problems]

Amorphous magnetic alloys made of 6-transferable metals such as iron and metalloid elements such as boron, silicon, and carbon have very unreasonable iron loss 1p1 and relatively high saturation magnetic flux density.
Many applications are being considered for the iron core of energy-saving equipment. However, this amorphous magnetic alloy
One major practical drawback was that the magnetostriction constant was too high, and even the slightest deformation significantly degraded the magnetic properties. .

The shape of the amorphous magnetic alloy is a very wide tape,
The entire winding can be used as a viscous core for a transformer, or punched into a predetermined shape and laminated to form a laminated core for a transformer. It was necessary to prevent this from occurring, and methods such as enclosing it in a case or molding it were adopted.1 However, since the material is very thin, the core made of this material was housed in a case. Even if it is used for a few seconds, it will deform during handling due to lack of rigidity. Figure 1 shows the conventional method used for silicon steel strips applied to an amorphous alloy.
and 3 are wound with amorphous magnetic alloy 1.

After putting it in a furnace and heat-treating it to relieve stress, the winding core 2.3 is divided and removed. Due to the lack of rigidity of the core, it becomes as shown in 2 j71 [modified by 1++ * However, it is difficult to handle it. Deterioration is Sahara〕1
．． y (I.

- Even when molding a 4-dimensional iron core, it is difficult to mold the iron core with a large amount of hardening.
, ■ 9 has 0 force, ・“Set effect 1 has deteriorated. A 1% iron core of amorphous trade 141 alloy is impregnated with Eboki/(6O fat) (
7. Hardened.

Go, J, 41f I It r,! (1,18w/k
l or C 0.33 w/kQ Heto thick [1] power increase [)
4゛ small (7 and 2).

Sharpening characteristics when subjected to -1 strain Deterioration or deterioration (-Itoto had the disadvantage that stable special quality products were not as good as I1, fq, and 2).

[Invention σ] Purpose] ``Unexploded ll1i lJ'', to eliminate the above-mentioned drawbacks of amorphous magnetic alloys, and to achieve stable reading % of +rh +・'i.
The 1.1 goal is to obtain the Iron Heart.-C.

[A1゛, Approximate number of lights] At the end of the iron core, insert it into the case and insert the reinforcing part A.
) Since it is reinforced by J etc., the heat spreads.
kl, ka1i: + A little ゛I' during handling at s't1
t L lz 4) Man l-σ) 1041st d) 4-
, hep ζ (key is enough 3, present invention,'', and 1h111j1・'4i■1) heart C1-) small for l proportion only (with vc t-7 ; 4).

[U6 Ming implementation flI1. l'1 An example of the present invention will be explained below using Fig. 3 and Fig. 4. Fig. 3 is a wound iron core made of a magnetic base metal, and is a rolled iron core made of a magnetic base metal. The adhesive layer 4 made of adhesive is applied to the shaped sand L-C.

The manufacturer +111j of the main iron core has a thermal QL as shown in Figure 4.
↓(After completing 1), impregnate the winding start part of the iron core and the width end part S of the can with adhesive agent to create an adhesive layer 42. After that, separate the winding cores 2 and 3 and remove them. figure.

Due to the rigidity of these N-layers 4, the iron core supports the steel core without losing its shape.

Instant adhesive is used as a room temperature curing adhesive, of which 1. !
r! The core of the wound core of amorphous magnetic alloy, which is in contact with the liquid in a layer of 10% of the total winding thickness on the outer periphery, has a ratio of Ipe 12 (from 1.18 w/kq to 0.19 w/Irq) before grafting. I decided to join the JFI.

12 no, 1- shield, in Ming, 1^1+ of the wound iron core
′ < IX and outer periphery) (:). However, if the iron core is small, 1f is fine, and if the core is large, 1f is fine. Shikaku('', 5th +:nl
1] An additional adhesive layer 5 or an additional contact-lateral portion 6 shown in FIG. 6 may be provided. However, the increase rate of Pk due to the addition of more than 50% of the total core volume exceeds 10%, so it is not easy.
l direction (1゛j, (the special r modification of low 16 loss of sex alloy is very high).

[Ka+lli's ・λ1. ．． ．． 11. 11J, 10th Statement/I-The VC misfire 11j1 is constructed using an amorphous magnetic alloy hν By providing uniformity by providing a 111-circle area that does not exceed I% of the entire core body, deterioration of characteristics due to strain does not occur during one turn of the core, and tr='?ft- 1111 comes to obtain excellent induction cores.

4 Figure rrtr] 11) Single “l r, +), +4+
H Figures 1 and 2 are perspective views explaining the state of conventional induction electric iron cores (S1, Machi, misfire 11J1 and 1 in Figure 1) - Visits to Shizu (11, Kitetsushin (H)) by major examples. 1 side 1 side 1
, I, 4th figure is the visit of non-invention, 4-111i: Mn, 111i: Mn, 5th P and 61st! 1 is a side view showing an example of Mli of the present invention.

]... Amorphous magnetic alloy 2, :3... Winding core 4, 5
... 4 concubine, agent, patent attorney Nori Chika is f! 41 (1 other person)
Figure 1 Figure 2 Figure 3 Figure 4・2 3 2

Claims (1)

[Claims] In a 2# military iron core made by rolling an amorphous magnetic alloy and heat treating it, an adhesive part is provided on at least one of the inner peripheral surface and the outer peripheral surface, and the total volume of this adhesive part is equal to the total core volume. 50% or less.