CN112927909A - Preparation method of magnetic core of open-type mutual inductor and shaping external mold structure applied by same - Google Patents

Preparation method of magnetic core of open-type mutual inductor and shaping external mold structure applied by same Download PDF

Info

Publication number
CN112927909A
CN112927909A CN202110102647.5A CN202110102647A CN112927909A CN 112927909 A CN112927909 A CN 112927909A CN 202110102647 A CN202110102647 A CN 202110102647A CN 112927909 A CN112927909 A CN 112927909A
Authority
CN
China
Prior art keywords
magnetic core
clamping
base block
core base
outer peripheral
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202110102647.5A
Other languages
Chinese (zh)
Other versions
CN112927909B (en
Inventor
马华许
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foshan Zhongyan Magnetoelectric Technology Co ltd
Original Assignee
Foshan Zhongyan Amorphous Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Foshan Zhongyan Amorphous Technology Co ltd filed Critical Foshan Zhongyan Amorphous Technology Co ltd
Priority to CN202110102647.5A priority Critical patent/CN112927909B/en
Publication of CN112927909A publication Critical patent/CN112927909A/en
Application granted granted Critical
Publication of CN112927909B publication Critical patent/CN112927909B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206Manufacturing of magnetic cores by mechanical means
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206Manufacturing of magnetic cores by mechanical means
    • H01F41/0246Manufacturing of magnetic circuits by moulding or by pressing powder

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Abstract

The invention provides a preparation method of a magnetic core of an open-type mutual inductor, which comprises the following steps: s1, carrying out heat treatment on the prepared magnetic core base block; s2, performing paint dipping treatment on the magnetic core base block obtained by the heat treatment; s3, baking and curing the magnetic core base block obtained by the paint dipping treatment; s4, cutting the magnetic core base block obtained by baking and curing to obtain two semi-annular mutual inductor magnetic core blocks; in the baking process of step S3, the core substrate obtained by the paint dipping process is subjected to a molding process, where the molding process includes: continuously applying molding pressure in the radial direction inwards to the outer periphery side of the magnetic core base block; through the arrangement of the preparation method of the magnetic core of the open-type mutual inductor, based on the molding application of the magnetic core of the mutual inductor, the end surface of the magnetic core can be ensured to be smooth, so that the open-type mutual inductor prepared by the preparation method has the beneficial effect of stable assembly.

Description

Preparation method of magnetic core of open-type mutual inductor and shaping external mold structure applied by same
Technical Field
The invention relates to the technical field of processing and manufacturing of transformers, in particular to a preparation method of a magnetic core of an open-type transformer and a shaping external mold structure applied by the same.
Background
The former open-type mutual inductor magnetic core is manufactured in an internal mold shaping mode, the outer circle size of the magnetic core cannot be effectively guaranteed in the manufacturing mode, the problem of end face cracks of the magnetic core cannot be solved (as shown in figure 5), the magnetic core is difficult to match with a protective box or other jigs in subsequent assembly, and the material characteristics of the open-type mutual inductor are affected.
Disclosure of Invention
The invention aims to provide a preparation method of a magnetic core of an open-type mutual inductor and a shaping external mold structure applied by the same, aiming at overcoming the defects of the prior art.
The preparation method of the magnetic core of the open-type mutual inductor comprises the following steps:
s1, carrying out heat treatment on the prepared magnetic core base block;
s2, performing paint dipping treatment on the magnetic core base block obtained by the heat treatment;
s3, baking and curing the magnetic core base block obtained by the paint dipping treatment;
s4, cutting the magnetic core base block obtained by baking and curing to obtain two semi-annular mutual inductor magnetic core blocks;
in the baking process of step S3, the core substrate obtained by the paint dipping process is subjected to a molding process, where the molding process includes: and continuously applying molding pressure in the radial direction inwards to the outer periphery side of the magnetic core base block.
Further, in step S3, the molding process includes the following steps:
s3-1, clamping the outer periphery of the magnetic core base block obtained by the dip coating treatment by a shaping external mold, and enabling the clamping side of the shaping external mold to form shape matching with the outer periphery of the magnetic core base block;
s3-2, connecting the shaping outer die with an elastic piece, and applying uniform shaping pressure to the outer periphery of the magnetic core base block by the clamping side of the shaping outer die under the elastic force of the elastic piece;
s3-3, baking and solidifying the magnetic core base block of the sizing external mold.
Further, in step S4, the cutting process includes the following steps:
s4-1, cutting marks are carried out on the magnetic core base block after baking and curing treatment, and the cutting marks are located at the clamping joint end position of the shaping outer die;
and S4-2, taking out the magnetic core base block and carrying out cutting treatment corresponding to the cutting mark.
Further, when the molding outer die is used for clamping, a release agent is coated between the clamping side of the molding outer die and the magnetic core base block.
Further, the magnetic core base block is annular as a whole, and the molding treatment process comprises the following steps: an inner die matched with the inner ring side of the magnetic core base block in shape is arranged at the position of the inner ring side of the magnetic core base block; the pressure range of the molding pressure is 5-10N.
The shaping outer die structure applied to the preparation method of the magnetic core of the open-type mutual inductor comprises at least two clamping pieces, wherein each clamping piece is connected with an elastic piece, a clamping space is formed by each clamping piece in a surrounding mode, and the elastic pieces are linked with the clamping pieces to be close to each other so that the clamping space has a narrowing trend.
Furthermore, the clamping piece block comprises a first clamping piece and a second clamping piece which are arranged on two sides, the first clamping piece and the second clamping piece are arranged in a semi-annular shape, and the clamping space is formed between the first clamping piece and the second clamping piece in a reliable connection mode; under the action of the elastic force of the elastic piece, the first clamping piece and the second clamping piece are mutually close to each other to clamp.
Further, the elastic piece comprises a plurality of springs, the outer periphery sides of the first clamping piece and/or the second clamping piece are/is provided with connecting pieces in an attaching mode, and the springs are connected to the connecting pieces and form a surrounding arrangement for the outer periphery sides of the first clamping piece and the second clamping piece; the outer peripheries of the first clamping piece and the second clamping piece are provided with a tendency of mutually approaching and clamping due to the reset elasticity of the spring.
Further, the first clamping piece outer periphery side is provided with a first positioning groove, the second clamping piece outer periphery side is provided with a second positioning groove, and the first positioning groove and the second positioning groove are in abutting fit to form an attaching groove for spring positioning attachment.
Furthermore, a screw hole is formed in the outer peripheral side of the first clamping piece or the second clamping piece in the radial direction in an extending mode, the connecting piece comprises a bolt, the bolt is in threaded connection with the screw hole, the number of the springs is one, one end of each spring is positioned and connected to one side, away from the screw hole, of the bolt, and each spring surrounds the outer peripheral sides of the first clamping piece and the second clamping piece and enables the other end of each spring to be positioned and connected to the other side, away from the screw hole, of the bolt.
The invention has the beneficial effects that:
through the arrangement of the preparation method of the magnetic core of the open-type mutual inductor, based on the molding application of the magnetic core of the mutual inductor, the end surface of the magnetic core can be ensured to be smooth, so that the open-type mutual inductor prepared by the preparation method has the beneficial effect of stable assembly.
Drawings
FIG. 1 is a schematic structural view of a sizing external mold structure of the present invention;
FIG. 2 is a first assembled schematic view of the inventive modular overmold structure;
FIG. 3 is a second assembled schematic view of the inventive modular overmold structure;
FIG. 4 is a schematic perspective view of a sizing die structure of the present invention;
FIG. 5 illustrates a prior art magnetic core end face crack problem;
fig. 6 shows the end surface condition of the magnetic core manufactured by the method for manufacturing a magnetic core according to the present invention.
Description of reference numerals:
the clamping device comprises a first clamping piece 1, a first positioning groove 11, a second clamping piece 2, a second positioning groove 21, a spring 3, a screw hole 4, a bolt 5, a clamping side 61, a clamping joint end 62 and a clamping space 7.
Detailed Description
In order to make the technical solution, the purpose and the advantages of the present invention more apparent, the present invention will be further explained with reference to the accompanying drawings and embodiments.
As shown in fig. 1 to 4, the method for preparing a magnetic core of an open-type transformer of the present invention includes the following steps:
s1, selecting a proper magnetic core material, and winding to obtain a circular magnetic core base block;
s2, carrying out heat treatment on the prepared magnetic core base block;
s3, performing paint dipping treatment on the magnetic core base block obtained by the heat treatment;
s4, baking and curing the magnetic core base block obtained by the dip coating treatment, and performing molding treatment on the magnetic core base block in the baking treatment process;
and S5, cutting the magnetic core base block obtained by the molding and baking curing treatment to obtain two semi-annular mutual inductor magnetic core blocks.
The molding treatment process comprises the following steps:
(1) an inner die matched with the inner ring side of the magnetic core base block in shape is arranged at the position of the inner ring side of the magnetic core base block, and the inner die can be selected to be applied to a cylindrical module; so that the inner ring side of the magnetic core base block and the cylindrical module form a close contact fit.
(2) And uniformly and continuously applying radially inward molding pressure to the outer periphery of the magnetic core base block by using a certain molding outer die, wherein the pressure range of the molding pressure is 5-10N.
The setting application of the shaping external mold is as follows: the magnetic core clamping device comprises at least two clamping pieces, wherein each clamping piece is encircled to form a ring shape, and a clamping side 61 of each clamping piece is combined to encircle a circular clamping space 7 for placing the magnetic core base block; each clamping piece block is connected with an elastic piece, and under the action of the elastic force of the elastic piece, the clamping piece blocks have mutually close clamping matching actions to form a tendency of narrowing the clamping space 7; when the shaping outer die stably clamps the magnetic core base block, the inner ring side surface of each clamping piece is tightly attached and contacted with the outer peripheral side surface of the magnetic core base block.
The outer periphery of each clamping piece block can be connected and extended with a connecting piece, the elastic piece can be applied to a spring 3, so that the spring 3 is provided with a plurality of sections, the tail ends of the plurality of sections of springs 3 are connected to the connecting pieces to form a ring shape, and under the action of the reset elastic force of each spring 3, the clamping pieces have corresponding tendency of approaching each other.
In the actual production process, or due to the problems of cost control and processing precision, transition or not enough flatness exists between the clamping sides 61 of the clamping blocks, the enclosing combination is difficult to arrange in a perfect circle shape, so the combination of the clamping blocks and the spring 3 with more quantity or the shape deformation of the clamping space 7 in the clamping blocks is easily caused; as a preferred embodiment, in the sizing external mold, the clamping piece block is applied as two pieces, namely a first clamping piece 1 and a second clamping piece 2 which are symmetrically arranged at two opposite sides; the first clamping piece 1 and the second clamping piece 2 are arranged in a semi-annular shape, and the clamping space 7 is formed between the opposite sides of the first clamping piece 1 and the second clamping piece 2.
The outer periphery of the first clamping piece 1 is provided with a first positioning groove 11, the outer periphery of the second clamping piece 2 is provided with a second positioning groove 21, and the first positioning groove 11 and the second positioning groove 21 are in abutting fit to form an attaching groove for positioning and attaching the spring 3.
The connecting member can be selectively applied as a bolt 5, such that a screw hole 4 is formed in the outer peripheral side of the first clamping member 1 at the central position thereof and extends in the radial direction thereof, and the bolt 5 is screwed into the screw hole 4 to form a fixing.
The spring 3 is applied as a strip, the head end of the spring 3 is positioned and connected to one side of the bolt 5 away from the position of the screw hole 4, the spring 3 is arranged around the outer peripheral sides of the first and second clip members 1 and 2 under the limitation of the attaching groove, and the tail end of the spring 3 is positioned and connected to the other side of the bolt 5 away from the position of the screw hole 4.
The molding outer die on the outer peripheral side is matched with the inner die on the inner ring side, so that the magnetic core base block in the baking and curing process can be continuously stressed, and the molding requirement of the magnetic core base block can be met. After the molding treatment, as shown in fig. 6, the end surface cracks of the magnetic core can be effectively subjected to the matching treatment, and the production application requirements of the high-quality magnetic core can be met.
When the shaping external mold is used for clamping, a release agent can be coated between the clamping side 61 of the shaping external mold and the magnetic core base block so as to facilitate the subsequent demolding treatment of the magnetic core base block.
Due to the structural form of the shaping outer die or the process problems, the connection transition positions of the first clamping piece 1 and the second clamping piece 2 are not smooth, and the clamping joint ends 62 of the magnetic core base block with the shaped magnetic core at the connection transition positions on the two sides are deformed to a certain degree.
Cutting marks corresponding to the clamping joint ends 62 at the two ends can be made in the cutting treatment process of the molded magnetic core base block; and the cutting mark is used for half-open cutting treatment, so that the deformed parts of the clamping joint ends 62 at two sides are treated along with the cutting loss, thereby obtaining two standard half-ring-shaped transformer magnetic core blocks, and meeting the subsequent assembly application requirements of the open-type transformer.
The above description is only a preferred embodiment of the present invention, and those skilled in the art may still modify the described embodiment without departing from the implementation principle of the present invention, and the corresponding modifications should also be regarded as the protection scope of the present invention.

Claims (10)

1.开启式互感器的磁芯制备方法,其特征在于,包括以下步骤:1. The magnetic core preparation method of open-type transformer is characterized in that, comprises the following steps: S1、对制备所得的磁芯基块进行热处理;S1, heat-treating the prepared magnetic core base block; S2、对热处理所得磁芯基块进行浸漆处理;S2, dipping the magnetic core base block obtained by heat treatment; S3、对浸漆处理所得磁芯基块进行烘烤固化处理;S3, baking and curing the magnetic core base block obtained by the dipping treatment; S4、对烘烤固化处理所得磁芯基块进行切割处理,得到两块呈半环状的互感器磁芯块;S4, cutting the magnetic core base blocks obtained by the baking and curing treatment to obtain two semi-annular transformer magnetic core blocks; 其中,于所述步骤S3的烘烤处理过程中,对该浸漆处理所得磁芯基块进行塑型处理,所述塑型处理过程包括:对所述磁芯基块外周侧持续施加有径向朝内的塑型压力。Wherein, during the baking process of the step S3, a molding process is performed on the magnetic core base block obtained by the dipping process. The molding process includes: continuously applying a diameter to the outer peripheral side of the magnetic core base block. Inward molding pressure. 2.如权利要求1所述的磁芯制备方法,其特征在于,所述步骤S3中,该塑型处理过程包括以下步骤:2. The magnetic core preparation method according to claim 1, wherein in the step S3, the molding process comprises the following steps: S3-1、对浸漆处理所得磁芯基块的外周侧以定型外模进行夹持,使所述定型外模的夹持侧与所述磁芯基块的外周侧形成有形状配合;S3-1, clamping the outer peripheral side of the magnetic core base block obtained by the dipping treatment with a shaping outer mold, so that the clamping side of the shaping outer mold and the outer peripheral side of the magnetic core base block form a shape fit; S3-2、使所述定型外模连接有弹性件,在弹性件的弹力作用下,所述定型外模的夹持侧对所述磁芯基块的外周侧施加有均匀的所述塑型压力;S3-2. Connect the outer sizing mold with an elastic member. Under the action of the elastic force of the elastic member, the clamping side of the outer sizing mold applies the uniform molding to the outer peripheral side of the magnetic core base block. pressure; S3-3、使该定型外模的磁芯基块作烘烤固化处理。S3-3, baking and curing the magnetic core base block of the shaping outer mold. 3.如权利要求2所述的磁芯制备方法,其特征在于,于步骤S4中,所述切割处理过程包括以下步骤:3. The magnetic core preparation method according to claim 2, wherein in step S4, the cutting process comprises the following steps: S4-1、对烘烤固化处理后的磁芯基块进行切割标记,所述切割标记位于所述定型外模的夹持接合端位置;S4-1, cutting and marking the magnetic core base block after baking and curing, and the cutting mark is located at the position of the clamping joint end of the shaping outer mold; S4-2、取出该磁芯基块,并对应该切割标记进行切割处理。S4-2, take out the magnetic core base block, and perform cutting processing on the mark that should be cut. 4.如权利要求2所述的磁芯制备方法,其特征在于,以所述定型外模进行夹持时,使所述定型外模的夹持侧与磁芯基块之间涂抹有脱模剂。4 . The magnetic core preparation method according to claim 2 , wherein when clamping with the outer sizing mold, a mold release is smeared between the clamping side of the outer sizing mold and the base block of the magnetic core. 5 . agent. 5.如权利要求1至4任一所述的磁芯制备方法,其特征在于,所述磁芯基块整体呈环状,所述塑型处理过程包括:向所述磁芯基块的内环侧位置置入有与该磁芯基块内环侧形状配合的内模具;所述塑型压力的压力范围为5~10N。5. The magnetic core preparation method according to any one of claims 1 to 4, wherein the magnetic core base block is annular as a whole, and the molding process comprises: inserting an inner part of the magnetic core base block An inner mold which is shape-fitted with the inner ring side of the magnetic core base block is placed at the position of the ring side; the pressure range of the molding pressure is 5-10N. 6.应用于权利要求1至5任一所述的磁芯制备方法的定型外模结构,其特征在于,包括至少两个夹件块,各所述夹件块与弹性件连接,各所述夹件块围合设置有夹持空间,所述弹性件联动各所述夹件块相互靠近而令该夹持空间具有收窄的趋势。6. The shaping outer mold structure applied to the magnetic core manufacturing method according to any one of claims 1 to 5, characterized in that it comprises at least two clip blocks, each of which is connected to an elastic member, and each of the clip blocks is connected to an elastic member. A clamping space is encircled by the clamping block, and the elastic member moves each of the clamping blocks to approach each other, so that the clamping space tends to be narrowed. 7.如权利要求6所述定型外模结构,其特征在于,所述夹件块包括两侧设置的第一夹件与第二夹件,所述第一夹件与第二夹件均呈半环状设置,所述第一夹件与第二夹件之间可靠接形成有所述夹持空间;在所述弹性件的弹力作用下,所述第一夹件与第二夹件作相互靠近的夹持动作。7 . The shaping outer mold structure according to claim 6 , wherein the clamping piece block comprises a first clamping piece and a second clamping piece arranged on both sides, and the first clamping piece and the second clamping piece are both in the shape of the first and second clamping pieces. 8 . The semi-circular arrangement, the clamping space is formed between the first clip and the second clip; under the action of the elastic force of the elastic member, the first clip and the second clip Clamping action close to each other. 8.如权利要求7所述的定型外模结构,其特征在于,所述弹性件包括若干弹簧,所述第一夹件和/或所述第二夹件的外周侧装接设置有连接件,弹簧连接于所述连接件上并形成对所述第一夹件与第二夹件外周侧的环绕设置;所述第一夹件与第二夹件外周侧受弹簧的复位弹力而具有相互靠近夹持的趋势。8 . The shaping outer mold structure according to claim 7 , wherein the elastic member comprises a plurality of springs, and the outer peripheral side of the first clamping member and/or the second clamping member is attached and provided with a connecting member. 9 . , the spring is connected to the connecting piece and forms a surrounding arrangement on the outer peripheral sides of the first clip and the second clip; The tendency to approach clamping. 9.如权利要求8所述的定型外模结构,其特征在于,所述第一夹件外周侧设置有第一定位槽,所述第二夹件外周侧设置有第二定位槽,所述第一定位槽与第二定位槽靠接配合形成为用于弹簧定位装接的装接槽。9 . The shaping outer mold structure according to claim 8 , wherein a first positioning groove is provided on the outer peripheral side of the first clamping member, a second positioning groove is provided on the outer peripheral side of the second clamping member, and the The first locating groove and the second locating groove abuttingly cooperate to form an attaching groove for spring positioning and attaching. 10.如权利要求8所述的定型外模结构,其特征在于,所述第一夹件或所述第二夹件的外周侧径向内延伸设置有螺孔,所述连接件包括螺栓,所述螺栓与所述螺孔螺接连接,所述弹簧设置为一条,该弹簧一端定位连接于所述螺栓远离所述螺孔位置的一侧,该弹簧围绕所述第一夹件与第二夹件外周侧设置并使其另一端定位连接于所述螺栓远离所述螺孔位置的另一侧。10 . The shaping outer mold structure according to claim 8 , wherein the outer peripheral side of the first clamping member or the second clamping member is provided with a screw hole extending radially inward, and the connecting member comprises a bolt, 11 . The bolt is threadedly connected to the screw hole, the spring is arranged in one strip, one end of the spring is positioned and connected to the side of the bolt away from the screw hole, and the spring surrounds the first clamp and the second The outer peripheral side of the clamp is arranged and the other end of the clamp is positioned and connected to the other side of the bolt away from the position of the screw hole.
CN202110102647.5A 2021-01-26 2021-01-26 Preparation method of magnetic core of open-type transformer and fixed outer mold structure of its application Active CN112927909B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110102647.5A CN112927909B (en) 2021-01-26 2021-01-26 Preparation method of magnetic core of open-type transformer and fixed outer mold structure of its application

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110102647.5A CN112927909B (en) 2021-01-26 2021-01-26 Preparation method of magnetic core of open-type transformer and fixed outer mold structure of its application

Publications (2)

Publication Number Publication Date
CN112927909A true CN112927909A (en) 2021-06-08
CN112927909B CN112927909B (en) 2022-06-21

Family

ID=76166174

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110102647.5A Active CN112927909B (en) 2021-01-26 2021-01-26 Preparation method of magnetic core of open-type transformer and fixed outer mold structure of its application

Country Status (1)

Country Link
CN (1) CN112927909B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101572182A (en) * 2009-02-27 2009-11-04 国电环境保护研究院 Ultracrystalline transformer core manufacturing method and special mould therefor
KR20160061109A (en) * 2014-11-21 2016-05-31 (주)창성 A manufacturing method of a magnetic core and an inductor with an embedded coil by molding process under a room temperature condition and a magnetic core and a molded inductor manufactured thereby.
CN109983552A (en) * 2016-10-27 2019-07-05 阿莫善斯有限公司 Manufacturing method for the core of current transformer and the core
CN110246678A (en) * 2019-07-23 2019-09-17 北流市柯顺电子有限公司 A kind of amorphous, nanocrystalline magnet core annealing fixture
CN112117116A (en) * 2020-10-12 2020-12-22 深圳市新核瑞科技有限公司 Method for manufacturing iron-based or nickel-based annular magnetic core

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101572182A (en) * 2009-02-27 2009-11-04 国电环境保护研究院 Ultracrystalline transformer core manufacturing method and special mould therefor
KR20160061109A (en) * 2014-11-21 2016-05-31 (주)창성 A manufacturing method of a magnetic core and an inductor with an embedded coil by molding process under a room temperature condition and a magnetic core and a molded inductor manufactured thereby.
CN109983552A (en) * 2016-10-27 2019-07-05 阿莫善斯有限公司 Manufacturing method for the core of current transformer and the core
CN110246678A (en) * 2019-07-23 2019-09-17 北流市柯顺电子有限公司 A kind of amorphous, nanocrystalline magnet core annealing fixture
CN112117116A (en) * 2020-10-12 2020-12-22 深圳市新核瑞科技有限公司 Method for manufacturing iron-based or nickel-based annular magnetic core

Also Published As

Publication number Publication date
CN112927909B (en) 2022-06-21

Similar Documents

Publication Publication Date Title
JP6638586B2 (en) Reactor manufacturing method
JP6256612B2 (en) Method for manufacturing wire-wound coil component
WO2017099048A1 (en) Laminated core manufacturing method, inner core, and outer core
CN112951578B (en) Shaping external mold structure
CN112927909A (en) Preparation method of magnetic core of open-type mutual inductor and shaping external mold structure applied by same
US20160161449A1 (en) Device for inspecting a surface of an electrically conductive part
CN108246906B (en) A shape memory alloy pipe joint diameter expansion device and method
CN111136143B (en) Device and method for robotic flexible flanging half-mold forming for rapid springback compensation
KR20160060663A (en) Holder for fastening a component to an internal combustion engine
JP2004225703A (en) Assembled camshaft equipped with depression
CN113843927A (en) A molding die for UAV composite parts
CN210999781U (en) Fireproof Silicone Sleeve Forming Mould
CN221812350U (en) A molding tool for facilitating coil forming and demoulding
CN206244847U (en) The flat heat-treating profiled device of paper tinsel
CN203607245U (en) Winding mold for oval coil
US3474531A (en) Encapsulated electrical component and method for making the same
JP7290486B2 (en) Cylindrical heater and manufacturing method thereof
CN111688166B (en) Injection rubber elastic handle adaptive molding device and one-step molding method thereof
CN223039850U (en) Auxiliary toroidal coil molding tool assembly
CN222079898U (en) Device to prevent bushing from being installed improperly
JP7388572B2 (en) Stator manufacturing method
CN210839262U (en) Disc type motor stator core production line and insulation processing equipment thereof
CN117962371B (en) Forming die and method for co-curing transmission shaft of composite material and metal joint
CN221966691U (en) Protection device for die forging processing
KR20190123415A (en) Manufacturing method of plate coil element for transformer

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CP01 Change in the name or title of a patent holder

Address after: No.15, Shunjing Avenue, B District, Lishui and GUI Industrial Park, Nanhai District, Foshan City, Guangdong Province

Patentee after: Foshan Zhongyan Magnetoelectric Technology Co.,Ltd.

Address before: No.15, Shunjing Avenue, B District, Lishui and GUI Industrial Park, Nanhai District, Foshan City, Guangdong Province

Patentee before: FOSHAN ZHONGYAN AMORPHOUS TECHNOLOGY Co.,Ltd.

CP01 Change in the name or title of a patent holder
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: Preparation method of magnetic core for open type transformer and its standardized external mold structure for application

Granted publication date: 20220621

Pledgee: Agricultural Bank of China Limited by Share Ltd. Nanhai Lishui branch

Pledgor: Foshan Zhongyan Magnetoelectric Technology Co.,Ltd.

Registration number: Y2024980051844

PE01 Entry into force of the registration of the contract for pledge of patent right