LAMINATED ELECTRICAL STEEL PLATE FOR MOTOR CORE AND PRODUCTION METHOD THEREFOR

• Main Authors: ARAI SATOSHI, OSUGI YASUO, TAKEDA KAZUTOSHI, WAJIMA KIYOSHI, YABUMOTO MASAO
• Format: Patent
• Language: English; Japanese
• Published: 12.01.2017
• Subjects: BASIC ELECTRIC ELEMENTS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION; INDUCTANCES; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MAGNETS; PERFORMING OPERATIONS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TRANSFORMERS; TRANSPORTING

PROBLEM TO BE SOLVED: To provide a laminated electrical steel plate which allows for bonding of extremely thin steel plates without lowering the iron loss, by reducing distortion induced in the steel plate at the time of bonding.SOLUTION: Two non-oriented electrical steel plates 11, 11 of 0.10-0.25 mm thick are laminated via an adhesive layer 12, where the adhesive layer 12 is provided with punctiform bonding parts 21, in zigzag, on the adhesive surface of the non-oriented electrical steel plate 11. Since the non-oriented electrical steel plates 11, 11 can be bonded with appropriate bond strength, distortion induced in the steel plate at the time of bonding is reduced, and the steel plates can be bonded without lowering the iron loss.SELECTED DRAWING: Figure 4 【課題】接着時に鋼板に誘起される歪を低減し、鉄損を低下させずに極薄の鋼板同士を接着できる積層電磁鋼板を提供する。【解決手段】各々厚さ０．１０ｍｍ〜０．２５ｍｍの２枚の無方向性電磁鋼板１１，１１が、接着層１２を介して積層され、接着層１２は、無方向性電磁鋼板１１の接着面に、点状の接着部２１が千鳥配列に設けられている。無方向性電磁鋼板１１同士を適切な接着強度で接着することができるので、接着時に鋼板に誘起される歪を低減し、鉄損を低下させずに鋼板同士を接着することができる。【選択図】図４