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31. 发明专利

JPH05166661A MOLDED TRANSFORMER FOR OUTDOOR USE AND ITS MANUFACTURE 失效
公开(公告)号：JPH05166661A
公开(公告)日：1993-07-02
申请号：JP33534391
申请日：1991-12-19
申请人： FUJI ELECTRIC CO LTD
发明人： TOKIMITSU FUJIO , NAGATOMO SUMI , MORIYA HIROSHI
IPC分类号： H01F41/12
摘要： PURPOSE:To maintain the good cooling efficiency of the title transformer and to eliminate that a molding resin, an iron core, a winding and a case for the title transformer are stripped by a method wherein the molding resin formed by mixing inorganic filler particles having a prescribed particle size with a flexible thermoset resin is heated and hardened in the case at a height with which a transformer content is covered. CONSTITUTION:An iron case 1 is composed of a box part 11 and a lid 12; a transformer content 20 which is composed of an iron core 2 and a winding 3 is housed in it. The case is filled with the mixture of siliceous sand 5 having a prescribed particle shape with an epoxy resin 6. In a completion state, the epoxy resin 6 is hardened, and the iron core 2, the winding 3 and the case 1 including the siliceous sand are united. Thereby, a possibility that air bubbles are generated in the transformer content is reduced. In addition, a size change due to the temperature change of the molding resin and the case is reduced, and the molding resin and the case are hard to strip.

32. 发明专利

JPH04223309A 失效
公开(公告)号：JPH04223309A
公开(公告)日：1992-08-13
申请号：JP40646190
申请日：1990-12-26
申请人： FUJI ELECTRIC CO LTD
发明人： OKAMOTO KENJI , TOKIMITSU FUJIO
IPC分类号： H01F27/20 , H01F27/32
摘要： PURPOSE:To improve heat radiating property without lowering dielectric strength by hot and cold stress by a method wherein insulating particles are filled in an outside case until the main body of an electric apparatus is buried therein. CONSTITUTION:Insulative particles 6 are filled up in an outside case so that the main body 100 of an electric apparatus, consisting of a core 2 housed in the outside case 3 and a winding 1, is buried in the particles and the particles come in contact with the cover of the outside case. After the insulative particles have been filled up, the outside case 3 is once evacuated by the evacuation valve 10 which is connected to a vacuum pump. At this time, the gap among the insulative particles 6 is also evacuated. Subsequently, the evacuation valve 10 is closed, and insulating gas is charged to the prescribed pressure from the gas-charging valve 11 which is connected to a gas cylinder. As a result, all gaps in the outside case, including the gaps among the insulating particles 6, are filled up with insulating gas, the gas charging valve 11 is closed, and a completed transformer is obtained.

33. 发明专利

JPH02288309A SUPERCONDUCTING COIL 失效
公开(公告)号：JPH02288309A
公开(公告)日：1990-11-28
申请号：JP10974489
申请日：1989-04-28
申请人： FUJI ELECTRIC CO LTD
发明人： TOKIMITSU FUJIO , ITO IKUO , SAKAKI KIYOSHI , YAMADA MITSURU
IPC分类号： H01F6/06
摘要： PURPOSE:To reduce the thickness of an insulating coating layer of a superconducting coil conductor and to withstand a burden voltage among metallic plates by loading a part of abnormal voltage upon the intervals among said metallic plates. CONSTITUTION:Metallic plates 1A-1C are electrically isolated from and are bonded with one another by an inter-metallic-plate insulating layer 40 composed of the hardened substance of a lamination material 41 composed of plastic films 42 (center layer) interposed on the laminated layer planes of said metallic plates 1A-1C and heat-hardening prepreg sheets 43 (both-side layers 43A and 43B) arranged on both sides of said plastic films 42. Also, either of a pair of metallic plates holding individual layer coils 5A and 5B (double-pancake winding coil), that is 1B, is held at the same potential as that of a bridging part 6 on the outer circumference side, whereas another one 1C is held at the same potential as that of a bridging part 17 on the inner circumference side. Accordingly, a potential difference between the individual layer coils 5A and 5B and the pair of metallic plates 1A-1C is reduced to the equal value to the alloted potential of the individual layer coils 5A and 5B and a substantial reduction of the thickness of an insulating coat of a superconducting coil conductor becomes possible. Also, by forming a composite material comprising heat-hardening prepreg sheet layers on both sides of a plastic molded material, an inter-plate insulating layer having a higher-level insulating performance can be formed.

34. 发明专利

JPH01281606A MANUFACTURE OF PHOTO-SETTING RESIN MOLDED ELECTRICAL APPLIANCE 失效
公开(公告)号：JPH01281606A
公开(公告)日：1989-11-13
申请号：JP11010288
申请日：1988-05-06
申请人： FUJI ELECTRIC CO LTD
发明人： TOKIMITSU FUJIO
IPC分类号： B29C39/38 , B29C33/06 , B29L31/34 , H01B3/30 , H01C17/02
摘要： PURPOSE:To enable quick curing without any thermal effect upon a molded electrical appliance by introducing into the space filled or impregnated with a photo-setting resin a beam via the photoconductive means wherein the tips of photoconductive fabrics are distributed, and cutting off the photoconductive means after the photo-setting of the resin. CONSTITUTION:A photo-setting resin 9 is filled in the case 2 of an electrical appliance 1 and an irradiation beam 20 is irradiated from the side of a liquid level 9A, thereby making the photo-setting of the resin 9. In this case, a bundle 11 comprising a plurality of photoconductive fabrics is used and one end thereof is made a photo-sensitive surface 11A. Also, a photoconductive fabric 12 at the other end is branched into the form of tree branches having random length. Furthermore, the tips of the branched photoconductive fabric 12 are so arranged as to be scattered in a space to be filled with the photo-setting resin 9. Then, an irradiation beam 20 is applied to the resin 9 for the hardening thereof and the bundle 11 of the fabrics is cut off at the position of the liquid level 9A. According to the aforesaid construction, it becomes possible to transmit a beam even to a position behind parts, a space between the layers of a metal conductor and the like. Consequently, a photo-setting resin mold can be formed by the irradiation of light for a short time, without any thermal effect even upon the molded electrical appliance 1.

35. 发明专利

JPH01258247A PRODUCTION AND STRUCTURE OF OPTICAL RECORDING MEDIUM 失效
公开(公告)号：JPH01258247A
公开(公告)日：1989-10-16
申请号：JP8650688
申请日：1988-04-08
申请人： FUJI ELECTRIC CO LTD
发明人： TOKIMITSU FUJIO
IPC分类号： G11B7/26 , G11B7/24 , G11B11/10 , G11B11/105
摘要： PURPOSE:To prevent the generation of detective adhered points and voids by coating a photosetting adhesive agent on the recording part forming surfaces of 1st and 2nd transparent substrates, masking the inside and outside circumferential parts of the substrates and subjecting the substrates to photoirradiation, then superposing the transparent substrates and subjecting the same to photoirradiation. CONSTITUTION:The photosetting adhesive agent 7 is coated over the entire surface of the surfaces formed with the recording parts of the transparent substrates 1A, 1B formed with the recording parts by laminating recording layers 2 and protective layers 3. The inside and outside circumferential parts of the substrates where the recording parts do not exist are masked and the substrates are subjected to the photoirradiation; thereafter, the two transparent substrates 1A, 1B are superposed on each other and are subjected to the photoirradiation over the entire surface. Only the photosetting adhesive agent coated on the recording parts is thereby first cured by the photoirradiation, then the two transparent substrates 1A, 1B are joined via the central part and the peripheral part. The generation of the defective adhered points and voids in the adhered parts is obviated and the moisture resistance is improved.

36. 发明专利

JPH01175710A MANUFACTURE OF RESIN MOLD TYPE INDUCTOR 失效
公开(公告)号：JPH01175710A
公开(公告)日：1989-07-12
申请号：JP33538587
申请日：1987-12-29
申请人： FUJI ELECTRIC CO LTD
发明人： TOKIMITSU FUJIO
IPC分类号： H01F41/12
摘要： PURPOSE:To eliminate an embedded support metal fitting which is a weak point for sealing performance of mold insulation layer and to realize a product which can withstand severe environmental conditions by filling rubber adhesive into the through hole of buffer film of the hole which remains at the mold insulation layer and by filling an adhesive which cures at room temperature into the hole corresponding to the mold insulation layer at the outside. CONSTITUTION:An inductor main unit 1 which mainly consists of a core 2 with a buffer film 4 and a wiring 3 wound around the core is stored in a mold 21, is retained at a specified position by temporary bosses 22 of which the tips are engaged with the core 2 through the buffer film 4 and the other edges are fixed detachably at the mold 21, and a resin composition is injected. Then, after performing curing treatment, the mold is released, and the bosses 22 are pulled out. In the hole 11 left, the portion remaining in the buffer film 4 is filled with a rubber adhesive and the outside portion remaining in the mold insulation layer 5 is filled and sealed with room temperature setting adhesive. It allows a mold insulation layer without local stress concentration to be formed, and a resin mold inductor which can withstand severe conditions is obtained.

37. 发明专利

JPS63234504A MANUFACTURE OF SADDLE-SHAPED COIL 失效
公开(公告)号：JPS63234504A
公开(公告)日：1988-09-29
申请号：JP6986687
申请日：1987-03-24
申请人： FUJI ELECTRIC CO LTD
发明人： TOKIMITSU FUJIO , MOTOYOSHI YUUICHI
IPC分类号： G01R33/381 , A61B5/055 , A61B10/00 , H01F6/06 , H01F7/20 , H01F41/04
摘要： PURPOSE:To prevent the deformation of a coil due to the recoiling force of a winding and to simplify the mounting structure of the title coil by a method wherein an adhesion sheet hardened by heating is fixed to one surface of a square-shaped tabular coil before a wound coil is removed from a coil former. CONSTITUTION:A semihardened adhesion sheet is adhered to a rotating plate, it is hardened by heating, said adhesion sheet 12 and a square tabular coil 11 are fixed with each other, they are removed from a coil former, and a reinforced tabular coil 10 is formed. Accordingly, the size and the winding width (w) of the tabular coil 10 can be maintained in a highly precise manner so that the residual stress of tabular coil, which is becoming to spread to outside by the recoiling force of a winding, is restricted by the tensile strength of the face direction of the adhesion sheet, and also the disorderly winding caused by exfoliation can be prevented. As a result, when a saddle-shaped coil 15 is formed by bending the reinforced tabular coil 10, with the adhesion sheet positioned inside, along th outer circumferential surface of a dielectric tube 2, the saddle-shaped coil 15 can be formed easily without deformation of the coil and disordered winding.

38. 发明专利

JPS62204836A MIXING APPARATUS FOR PREPARING MIXED COMPOSITION 失效
公开(公告)号：JPS62204836A
公开(公告)日：1987-09-09
申请号：JP4707086
申请日：1986-03-04
申请人： FUJI ELECTRIC CO LTD
发明人： TOKIMITSU FUJIO
IPC分类号： B01F7/32 , B01F5/22
摘要： PURPOSE:To obtain the titled apparatus capable of preparing a large quantity of a homogeneous mixed composition, by specifically arranging a variable speed drive means, a mixing basket, an outer tank, a dripping basket provided with a spiral groove, a material injection means and an emitting port provided with a spiral basket. CONSTITUTION:Compositional materials injected in a mixing basket 7a through compositional material injection means 2, 3 are extruded toward an outer peripheral wall 12 by centrifugal force generated by the rotation of the mixing basket 7a. At this time, gases dissolved in the materials are liberated and the materials having specific gravity pass through a large number of fine piercing holes 13 provided to the outer peripheral wall 12 and scattered to the space between the outer peripheral wall 12 and an outer tank 6 as splash to collide with each other to be mixed. Subsequently, a fine mixture collides with the outer tank 6 to fall along the inner surface of the outer tank 6 and moved to a lower mixing basket 7b along the spiral groove 8a of a lower dripping basket 8. The mixture moved is scattered similarly by centrifugal force to be mixed homogeneously still more and emitted from an emitting port 11 along the spiral groove 9a of a bottom tank 9.

39. 发明专利

JPS60173816A MANUFACTURE OF LAMINATED CORE BLOCK 失效
公开(公告)号：JPS60173816A
公开(公告)日：1985-09-07
申请号：JP2986784
申请日：1984-02-20
申请人： FUJI DENKI SOGO KENKYUSHO KK , FUJI ELECTRIC CO LTD
发明人： TOKIMITSU FUJIO , YANAGAWA KATSUHIKO
IPC分类号： H01F41/02
摘要： PURPOSE:To equalize the thickness of adhesive layers, and to obtain film adhesive strength by coating one laminating surface of a ferromagnetic substance plate with a prepreg sheet consisting of a composite body of epoxy resin group adhesives under a semirigid state and a crossed or powdered thickness regulating material, superposing a plurality of layers, applying distribution load and heating the layers. CONSTITUTION:Two ferromagnetic substance plates 1A and 1B are pasted together and mutual positions are maintained because a prepreg sheet 2 under a semirigid state has weak adhesion. Air in voids G is expelled to the outside by applying predetermined distribution load p under the state, and the sheet 2 and the ferromagnetic substance plates 1A, 1B are brought to a mutually stuck state. Flowability is removed at the normal temperature because adhesives 3 are brought to the semirigid state, and adhesives 3 function as a lubricant and a phenomenon of which the ferromagnetic substance plates 1A, 1B are displaced can be eliminated. The ferromagnetic substance plates 1A and 1B are firmly bonded mutually and unified by an adhesive layer in thickness regulated by thick regulating materials 4 in a core block passing a fixed heating curing time.

40. 发明专利

JPS59111318A Method for thermosetting of cast material for molded oil 失效
标题翻译：用于模制油的铸造材料的热成型方法
公开(公告)号：JPS59111318A
公开(公告)日：1984-06-27
申请号：JP22116682
申请日：1982-12-17
申请人： Fuji Electric Co Ltd , Fuji Electric Corp Res & Dev Ltd
发明人： TOKIMITSU FUJIO
IPC分类号： B29B7/00 , B29C39/00 , B29C39/10 , B29C39/26 , B29C39/38 , B29C39/42 , H01F41/12
CPC分类号： H01F41/127
摘要： PURPOSE:To make a cast molding into a product having a good corona characteristics and so on in a short time by the method wherein a coil present inside of a molded current transformer or transformer is conducted D.C. directly to be developed heat which hardens a casting material from periphery of the coil. CONSTITUTION:A coil 2 present inside a die 3 of a molded transformer of 6kV, 500kVA is vacuum-cast its periphery by an epoxy resin casting material 4. After that, periphery of the die 3 is covered with a heat insulator (rock wool) 5 and a coil terminal 10 present inside the die is previously insulated from the die 3 by an insulating plate 8 and a lead 12 fixed by a nut 9 is connected to a power source for the conduction of current. At first, the conduction is started setting a voltage and a current at 65V and 55A and hardening reaction of the casting material 4 is started by heat developed of the coil 2. In case of a molded transformer coil of the capacity, it can be released from the die 3 in 220min.
摘要翻译：目的：通过将模制的电流互感器或变压器内存在的线圈直接进行DC直接进行发热的方法，在短时间内将铸造成型为具有良好电晕特性等的产品，从而使浇铸材料硬化从线圈的周边。构成：存在于6kV，500kVA的模制变压器的模具3内的线圈2通过环氧树脂铸造材料4对其周边进行真空铸造。之后，模具3的周围被绝热体（岩棉）覆盖， 5和存在于管芯内的线圈端子10预先通过绝缘板8与管芯3绝缘，并且由螺母9固定的引线12连接到用于导通电流的电源。首先，开始导通，在65V和55A设定电压和电流，并且通过线圈2的热量展开开始铸造材料4的硬化反应。在容量为模制的变压器线圈的情况下，可以释放从模具3在220分钟。

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