CN108447659A - The magnetically soft alloy formed iron core of low-frequency transformer - Google Patents
The magnetically soft alloy formed iron core of low-frequency transformer Download PDFInfo
- Publication number
- CN108447659A CN108447659A CN201810134493.6A CN201810134493A CN108447659A CN 108447659 A CN108447659 A CN 108447659A CN 201810134493 A CN201810134493 A CN 201810134493A CN 108447659 A CN108447659 A CN 108447659A
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- CN
- China
- Prior art keywords
- iron core
- magnetically soft
- soft alloy
- low
- wrapping post
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The present invention relates to the technical fields of low-frequency transformer,Disclose the magnetically soft alloy formed iron core of low-frequency transformer,It is formed for magnetically soft alloy material by being sintered die casting,The magnetically soft alloy formed iron core of low-frequency transformer is in closed hoop,Form the wrapping post there are three being sequentially arranged side by side and for winding input coil and output winding,And the hollow region of closed form is enclosed between adjacent wrapping post,The magnetically soft alloy formed iron core of low-frequency transformer provided by the invention,Since iron core is that magnetically soft alloy material is formed by being sintered die casting,In this way,Instead of silicon steel sheet in the prior art,After input coil and output winding are wrapped on wrapping post,When iron core is in running order,The magnetic losses of itself can then be reduced,The phenomenon that being not in iron core leakage field,Improve the quality of iron core,It is simple in structure,It is highly practical.
Description
Technical field
The present invention relates to the magnetically soft alloys of the technical field of low-frequency transformer, especially low-frequency transformer to be integrally formed iron
Core.
Background technology
Low-frequency transformer is used for transmitting signal voltage and signal power, the impedance matching between circuit is can also be achieved, to straight
Galvanic electricity has buffer action.High frequency transformer and no difference in low-frequency transformer principle, but not due to the frequency of high and low frequency
Together, the iron core used in transformer is different, and low-frequency transformer generally uses the silicon steel sheet of high permeability.
Currently, by winding different groups of coil on iron core, the coil for passing through wound around coil is different so that input voltage
It is different from output voltage, and then realize the effect of transformation.
In the prior art, the iron core of low-frequency transformer is typically all and is formed by stacking by several silicon steel sheets, in this way, being in
When working condition, iron core is then susceptible to leakage field, to, during iron core use, it is susceptible to serious leakage field phenomenon,
Influence the quality of product.
Invention content
The purpose of the present invention is to provide the magnetically soft alloy formed iron cores of low-frequency transformer, it is intended to solve the prior art
In, the iron core of low-frequency transformer is formed by stacking using silicon steel sheet, is susceptible to leakage field, leads to soft magnetism stator in use,
There is the problem of serious leakage field.
The invention is realized in this way the magnetically soft alloy formed iron core of low-frequency transformer, logical for magnetically soft alloy material
Oversintering die casting forms, and the magnetically soft alloy formed iron core of the low-frequency transformer is in closed hoop, and there are three sequentially for formation
It is arranged side by side and is used to wind the wrapping post of input coil and output winding, and has been enclosed and has closed between adjacent wrapping post
Close the hollow region of shape.
Further, the peripheral surface of the wrapping post is formed with the score groove for winding input coil, the indentation
Slot spirals along the axial direction of the wrapping post in the peripheral surface of the wrapping post.
Further, the peripheral surface of the wrapping post is covered with the oiliness paper of insulation, and the oiliness paper covers winding
Input coil in the score groove.
Further, it is convexly equipped with respectively in two ends of the score groove for the fixed outside being connect with input coil
First locating piece of electric wire.
Further, it is convexly equipped on two ends of the peripheral surface of the wrapping post and is connect with output winding for fixation
External cable the second locating piece, second locating piece pass through the oiliness paper.
Further, the iron core includes two crossbeams, and two crossbeams are arranged in laterally parallel up and down, described in three
Wrapping post is arranged between two crossbeams, is separately arranged in longitudinal；The both ends of the wrapping post are respectively formed with insertion
There is the inner end towards the wrapping post, the inner end of the wrapping post to be equipped with jack for section, the crossbeam, the wrapping post
Correspondence is inserted in the jack of two crossbeams two inserting paragraphs respectively.
Further, the diameter of the inserting paragraph is less than the diameter of the jack, and the periphery of the inserting paragraph is provided with more
A spaced apart convex block, multiple convex blocks arrange that the convex block has outwardly disposed around the periphery of the inserting paragraph
Bearing surface, the bearing surface of the convex block is connected to the madial wall of the jack.
Further, the bearing surface of the inserting paragraph is in arc surfaced.
Further, the opening of the jack is provided with adhesive layer, and the adhesive layer closes the opening of the jack, and
At the cooperation for closing the inserting paragraph and the jack；The adhesive layer is looped around the peripheral surface of the wrapping post, and with institute
It states and is formed with step between the peripheral surface of wrapping post.
Further, the magnetically soft alloy material is that zinc molybdenum-iron or ferrite or iron metal plate aluminium or iron sial etc. are one or more
Nonmetallic materials are mixed.
Compared with prior art, the magnetically soft alloy formed iron core of low-frequency transformer provided by the invention, due to iron core
Be magnetically soft alloy material is formed by being sintered die casting, in this way, instead of silicon steel sheet in the prior art, when input coil and defeated
Go out after coil is wrapped on wrapping post, when iron core is in running order, then can reduce the magnetic losses of itself, be not in iron
The phenomenon that core leakage field, improves the quality of iron core, of simple structure and strong practicability.
Description of the drawings
Fig. 1 is the schematic front view of the magnetically soft alloy formed iron core of low-frequency transformer provided in an embodiment of the present invention；
Fig. 2 is the schematic front view of wrapping post provided in an embodiment of the present invention.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The realization of the present invention is described in detail below in conjunction with specific embodiment.
Referring to Fig.1 shown in -2, preferred embodiment is provided for the present invention.
The magnetically soft alloy formed iron core of low-frequency transformer provided by the invention can be used in various types of low frequencies
In transformer.
The magnetically soft alloy formed iron core of low-frequency transformer is that magnetically soft alloy material is formed by being sintered die casting, in closure
Ring-type, there are three the wrapping posts 11 being sequentially arranged side by side for formation, and are enclosed closed form between adjacent wrapping post 11
Hollow region.In actual use, each phase input coil of input terminal is sequentially wound on three wrapping posts 11 respectively, output end
Each phase output winding is sequentially wrapped in respectively on three wrapping posts 11, in this way, wound by input coil and output winding
The transformation between input voltage and output voltage then may be implemented in the difference of the number of turns.
The magnetically soft alloy formed iron core of the low-frequency transformer of above-mentioned offer, since iron core is that magnetically soft alloy material passes through
Sintering die casting forms, in this way, instead of silicon steel sheet in the prior art, when input coil and output winding are wrapped in wrapping post
After on 11, when iron core is in running order, then the phenomenon that can reducing the magnetic losses of itself, be not in iron core leakage field, carry
The quality of high iron core, of simple structure and strong practicability.
Wherein, magnetically soft alloy material can be zinc molybdenum-iron or ferrite or one or more non-gold such as iron metal plate aluminium or iron sial
Belong to material to be mixed.
In the present embodiment, the peripheral surface of wrapping post 11 is formed with score groove, and score groove is wrapped wrapping post 11, along around
The axial direction of terminal 11 is spiraled arrangement, and in actual use, input coil is wrapped in score groove, along spiraling for score groove
Direction is wound, in this way, by the way that score groove is arranged, then it can be in order to input coil.
It is covered with the oiliness paper of insulation in the peripheral surface of wrapping post 11, which covers the periphery of entire wrapping post 11
Surface, and the input coil being wrapped in score groove is covered, in this way, after covering oiliness paper, then it can be in oiliness paper
It is externally wrapped with output winding, in this way, the insulation between input coil and output winding then may be implemented.
In the present embodiment, it is convexly equipped with the first locating piece in two ends of score groove, in this way, input coil is wrapped in quarter
After in trace slot, after external electric wire is connect with input coil, can position directly be carried out by the first locating piece and fixed so that electricity
Stable connection between line and input coil.
It is convexly equipped with the second locating piece 113 on two ends of the peripheral surface of wrapping post 11, in this way, and the second locating piece
113 pass through oiliness paper, in this way, after output winding is wrapped in the peripheral surface of wrapping post 11, external electric wire and output winding
After connection, can position directly be carried out by the second locating piece 113 and fixed so that stable connection between electric wire and output winding.
In the present embodiment, iron core includes two crossbeams 12, and two crossbeams 12 are arranged in laterally parallel up and down, three wrapping posts
11 are arranged between two crossbeams 12, and in longitudinal separately parallel arrangement.The both ends of wrapping post 11 are respectively formed with inserting paragraph
112, crossbeam 12 has the inner end towards wrapping post 11, and jack is formed in the inner end of crossbeam 12,11 liang of wrapping post
Correspondence is inserted in the jack of two crossbeams 12 inserting paragraph 112 at end respectively, in this way, two crossbeams 12 and three wrapping posts 11
Combination forms " day of falling shape " shape.In this way, assembled again after iron core is divided into module block manufacture, for large-sized iron core,
Convenient for manufacturing and assembling.
In the present embodiment, the diameter of inserting paragraph 112 is less than the diameter of jack, and is convexly equipped in the periphery of inserting paragraph 112 more
A spaced apart convex block 111, multiple convex blocks 111 are arranged around the periphery of inserting paragraph 112, and convex block 111 has cloth outwardly
The bearing surface set；After the inserting paragraph 112 of wrapping post 11 is inserted in the jack of crossbeam 12, the bearing surface of convex block 111 is connected to
On the madial wall of jack, in this way, after inserting paragraph 112 is inserted in jack, in the bearing surface and jack by multiple convex blocks 111
It is abutted between side wall, realizes interval point contact, be inserted in jack in this way, facilitating insertion into section 112, and after insertion, pass through interval
Point abut, avoid stuck state occur in assembling process, furthermore it is possible to so that in the core formed in magnetic circuit the magnetic line of force more
To concentrate in wrapping post 11.
As preferred embodiment, the bearing surface of inserting paragraph 112 is in arc surfaced, in this way so that the bearing surface of convex block 111 with
Contact area is more extensive between the madial wall of jack.
In addition, the opening in the jack of the inner end of crossbeam 12 is provided with adhesive layer, when the inserting paragraph 112 of wrapping post 11
After being inserted into the jack of crossbeam 12, which has covered the opening of jack, will be closed at inserting paragraph 112 and socket cooperation.
In the present embodiment, after adhesive layer is sealed on the opening of jack, be looped around the peripheral surface of wrapping post 11, and with around
It is formed with step between the peripheral surface of terminal 11, opposite arrangement is respectively formed at the both ends of wrapping post 11 in this way, being equivalent to
Step, in this way, can to the winding of input coil and output winding carry out end positioning.
Alternatively, as other embodiment, entire iron core can also be integrally formed.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (10)
1. the magnetically soft alloy formed iron core of low-frequency transformer, which is characterized in that pass through sintering die casting for magnetically soft alloy material
Form, the magnetically soft alloy formed iron core of the low-frequency transformer is in closed hoop, formed there are three being sequentially arranged side by side and
Wrapping post for winding input coil and output winding, and the hollow of closed form is enclosed between adjacent wrapping post
Region.
2. the magnetically soft alloy formed iron core of low-frequency transformer as described in claim 1, which is characterized in that the wrapping post
Peripheral surface be formed with the score groove for winding input coil, the score groove is spiraled along the axial direction of the wrapping post
The peripheral surface of the wrapping post.
3. the magnetically soft alloy formed iron core of low-frequency transformer as claimed in claim 2, which is characterized in that the wrapping post
Peripheral surface be covered with the oiliness paper of insulation, the oiliness paper covers the input coil being wrapped in the score groove.
4. the magnetically soft alloy formed iron core of low-frequency transformer as claimed in claim 3, which is characterized in that the score groove
Two ends in be convexly equipped with the first locating piece for the fixed external cable being connect with input coil respectively.
5. the magnetically soft alloy formed iron core of low-frequency transformer as claimed in claim 4, which is characterized in that the wrapping post
Peripheral surface two ends on be convexly equipped with the second locating piece for the fixed external cable being connect with output winding, it is described
Second locating piece passes through the oiliness paper.
6. such as the magnetically soft alloy formed iron core of low-frequency transformer described in any one of claim 1 to 5, which is characterized in that
The iron core includes two crossbeams, and two crossbeams are in laterally parallel arrangement, three wrapping posts are arranged in two up and down
Between the crossbeam, separately arranged in longitudinal；The both ends of the wrapping post are respectively formed with inserting paragraph, and the crossbeam has court
To the inner end of the wrapping post, the inner end of the wrapping post is equipped with jack, and two inserting paragraphs of the wrapping post are right respectively
It should be inserted in the jack of two crossbeams.
7. the magnetically soft alloy formed iron core of low-frequency transformer as claimed in claim 6, which is characterized in that the inserting paragraph
Diameter be less than the jack diameter, the periphery of the inserting paragraph is provided with multiple spaced apart convex blocks, multiple described convex
Block arranges that there is the convex block outwardly disposed bearing surface, the bearing surface of the convex block to support around the periphery of the inserting paragraph
It is connected on the madial wall of the jack.
8. the magnetically soft alloy formed iron core of low-frequency transformer as claimed in claim 7, which is characterized in that the inserting paragraph
Bearing surface be in arc surfaced.
9. the magnetically soft alloy formed iron core of low-frequency transformer as claimed in claim 6, which is characterized in that the jack
Opening is provided with adhesive layer, and the adhesive layer closes the opening of the jack, and closes the inserting paragraph and the jack
At cooperation；The adhesive layer is looped around the peripheral surface of the wrapping post, and is formed between the peripheral surface of the wrapping post
There is step.
10. such as the magnetically soft alloy formed iron core of low-frequency transformer described in any one of claim 1 to 5, which is characterized in that
The magnetically soft alloy material is zinc molybdenum-iron or ferrite or one or more nonmetallic materials mixing systems such as iron metal plate aluminium or iron sial
At.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810134493.6A CN108447659B (en) | 2018-02-09 | 2018-02-09 | Soft magnetic alloy integrated iron core of low-frequency transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810134493.6A CN108447659B (en) | 2018-02-09 | 2018-02-09 | Soft magnetic alloy integrated iron core of low-frequency transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108447659A true CN108447659A (en) | 2018-08-24 |
| CN108447659B CN108447659B (en) | 2023-06-13 |
Family
ID=63192180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810134493.6A Active CN108447659B (en) | 2018-02-09 | 2018-02-09 | Soft magnetic alloy integrated iron core of low-frequency transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108447659B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05326282A (en) * | 1992-05-21 | 1993-12-10 | Sony Corp | Manufacture of rotating transformer |
| JPH05343234A (en) * | 1992-06-05 | 1993-12-24 | Murata Mfg Co Ltd | Noise filter |
| JPH07130555A (en) * | 1993-10-29 | 1995-05-19 | Sony Corp | Choke coil |
| JPH09329263A (en) * | 1996-06-06 | 1997-12-22 | Koganei Corp | Solenoid for solenoid valve and manufacture thereof |
| JPH10335162A (en) * | 1997-05-27 | 1998-12-18 | Matsushita Electric Works Ltd | High-voltage transformer |
| JP2002170722A (en) * | 2000-12-01 | 2002-06-14 | Murata Mfg Co Ltd | Inductor |
| JP2006032862A (en) * | 2004-07-21 | 2006-02-02 | Tdk Corp | Ferrite core |
| JP2006140527A (en) * | 2006-01-16 | 2006-06-01 | Matsushita Electric Works Ltd | Electromagnetic device |
| CN201075329Y (en) * | 2007-06-21 | 2008-06-18 | 爱普科斯电阻电容(珠海)有限公司 | Magnetic core |
| WO2017047740A1 (en) * | 2015-09-17 | 2017-03-23 | Ntn株式会社 | Magnetic element |
-
2018
- 2018-02-09 CN CN201810134493.6A patent/CN108447659B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05326282A (en) * | 1992-05-21 | 1993-12-10 | Sony Corp | Manufacture of rotating transformer |
| JPH05343234A (en) * | 1992-06-05 | 1993-12-24 | Murata Mfg Co Ltd | Noise filter |
| JPH07130555A (en) * | 1993-10-29 | 1995-05-19 | Sony Corp | Choke coil |
| JPH09329263A (en) * | 1996-06-06 | 1997-12-22 | Koganei Corp | Solenoid for solenoid valve and manufacture thereof |
| JPH10335162A (en) * | 1997-05-27 | 1998-12-18 | Matsushita Electric Works Ltd | High-voltage transformer |
| JP2002170722A (en) * | 2000-12-01 | 2002-06-14 | Murata Mfg Co Ltd | Inductor |
| JP2006032862A (en) * | 2004-07-21 | 2006-02-02 | Tdk Corp | Ferrite core |
| JP2006140527A (en) * | 2006-01-16 | 2006-06-01 | Matsushita Electric Works Ltd | Electromagnetic device |
| CN201075329Y (en) * | 2007-06-21 | 2008-06-18 | 爱普科斯电阻电容(珠海)有限公司 | Magnetic core |
| WO2017047740A1 (en) * | 2015-09-17 | 2017-03-23 | Ntn株式会社 | Magnetic element |
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| Publication number | Publication date |
|---|---|
| CN108447659B (en) | 2023-06-13 |
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