CN108922757A - A kind of transformer based on magnetic fluid - Google Patents

A kind of transformer based on magnetic fluid Download PDF

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Publication number
CN108922757A
CN108922757A CN201810562970.9A CN201810562970A CN108922757A CN 108922757 A CN108922757 A CN 108922757A CN 201810562970 A CN201810562970 A CN 201810562970A CN 108922757 A CN108922757 A CN 108922757A
Authority
CN
China
Prior art keywords
magnetic fluid
piston
iron core
shell
guide hole
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.)
Withdrawn
Application number
CN201810562970.9A
Other languages
Chinese (zh)
Inventor
蔡兵
朱丽娟
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.)
Hubei University of Arts and Science
Original Assignee
Hubei University of Arts and Science
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 Hubei University of Arts and Science filed Critical Hubei University of Arts and Science
Priority to CN201810562970.9A priority Critical patent/CN108922757A/en
Priority to CN201811432224.4A priority patent/CN109360725A/en
Priority to CN201821979843.0U priority patent/CN209515425U/en
Publication of CN108922757A publication Critical patent/CN108922757A/en
Priority to CN201811588177.2A priority patent/CN109585145B/en
Withdrawn legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00Variable transformers or inductances not covered by group H01F21/00
    • H01F29/08Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators
    • H01F29/10Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators having movable part of magnetic circuit
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00Variable transformers or inductances not covered by group H01F21/00
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/02Casings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/24Magnetic cores
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/24Magnetic cores
    • H01F27/245Magnetic cores made from sheets, e.g. grain-oriented

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Fluid-Damping Devices (AREA)
  • Handcart (AREA)
  • Road Signs Or Road Markings (AREA)

Abstract

The invention discloses a kind of transformer based on magnetic fluid, primary coil, secondary coil are respectively arranged on the iron core;Cored upper right side, iron core left upper end is respectively set in iron core both ends;The housing bottom both ends are respectively arranged with shell bottom righthand side, shell lower-left end;It is horizontally arranged with piston guide hole in the shell, piston push rod is provided in the piston guide hole, piston is threaded on piston push rod, piston push rod is provided with adjusting pressuring knob on end;Left magnetic fluid is provided in the cavity that the left inside cavity, the piston guide hole on the piston left side, iron core left upper end top are formed, piston guide hole on the right of right inner chamber body, piston is provided with right magnetic fluid in the cavity formed at the top of iron core upper right side, the magnetic permeability ratio of the left magnetic fluid and right magnetic fluid is n:1, n>1.Pressure regulation efficiency of the present invention is high, and waveform and voltage adjustment characteristic are good, easy to use.

Description

A kind of transformer based on magnetic fluid
Technical field
The present invention relates to a kind of transformers based on magnetic fluid, belong to electric power continuous transformer technical field.
Background technique
Currently, transformer is the device for changing alternating voltage using the principle of electromagnetic induction.Major function has:Voltage becomes It changes, current transformation, impedance transformation, isolation, pressure stabilizing etc..
Existing transformer in the market is transformable sometimes for output voltage.Although existing output voltage is variable The transformer of change, but have grade pressure regulation, which limit the use scopes of transformer.For this purpose, market needs one kind can stepless-adjustment The transformer of pressure.
Summary of the invention
Purpose:In order to overcome the deficiencies in the prior art, the present invention provides a kind of transformer based on magnetic fluid.
Technical solution:In order to solve the above technical problems, the technical solution adopted by the present invention is:
A kind of transformer based on magnetic fluid, including:Iron core, primary coil, secondary coil, shell, left magnetic fluid, right magnetic current Body is respectively arranged with primary coil, secondary coil on the iron core;It is left that cored upper right side, iron core is respectively set in iron core both ends Upper end;The housing bottom both ends are respectively arranged with shell bottom righthand side, shell lower-left end;Piston is horizontally arranged in the shell Pilot hole is respectively turned in the shell above the both ends of piston guide hole and is provided with left inside cavity, right inner chamber body, piston guide hole two It is respectively turned in shell bottom righthand side, shell lower-left end below holding and is provided with through slot, through slot in shell bottom righthand side, shell lower-left end It is mutually clamped with iron core upper right side, iron core left upper end respectively;Piston push rod, spiral shell on piston push rod are provided in the piston guide hole Line is connected with piston, and piston push rod is provided with adjusting pressuring knob on end;The left inside cavity, the piston left side piston guide hole, It is provided with left magnetic fluid in the cavity formed at the top of iron core left upper end, the piston guide hole, iron core on the right of right inner chamber body, piston are right It is provided with right magnetic fluid in the cavity formed at the top of upper end, the magnetic permeability ratio of the left magnetic fluid and right magnetic fluid is n:1, n>1.
Preferably, the piston uses magnetic conductive material.
Preferably, the iron core uses silicon sheet core.
Preferably, the shell uses Al-alloy casing.
Preferably, the piston push rod, which has, is provided with sealing ring on adjusting pressuring knob one end.
Preferably, n=2.
Beneficial effect:A kind of transformer based on magnetic fluid provided by the invention is changed by rotating adjusting pressuring knob by a left side The magnetic resistance for the magnetic circuit that magnetic fluid and right magnetic fluid are constituted changes secondary to change the magnetic flux size by secondary coil The output induced voltage of coil.Due to being the continuous magnetic flux size changed through secondary coil, the stepless-adjustment of transformer is realized Pressure.The design pressure regulation efficiency is high, and waveform and voltage adjustment characteristic are good, easy to use.
Detailed description of the invention
Fig. 1 transformer device structure schematic diagram of the present invention.
Fig. 2 transformer section view schematic diagram of internal structure of the present invention.
Fig. 3 Al-alloy casing schematic cross-sectional view.
Fig. 4 silicon sheet core structural schematic diagram.
Fig. 5 piston structure schematic diagram.
In figure, 1 left inside cavity, 2 left magnetic fluids, 3 piston guide holes, 4 piston push rods, 5 right inner chamber bodies, 6 Al-alloy casings, 7 right magnetic fluids, 8 adjusting pressuring knobs, 9 sealing rings, 10 Al-alloy casing bottom righthand sides, 11 silicon sheet core upper right sides, 12 silicon steel sheet iron Core, 13 secondary coils, 14 primary coils, 15 silicon sheet core left upper ends, 16 Al-alloy casing lower-left ends, 17 pistons, 18 pistons Screw thread.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawing.
As shown in Figs. 1-5, a kind of transformer based on magnetic fluid, 6 lower-left end 16 of Al-alloy casing are sleeved on silicon steel sheet iron 12 left upper end 15 of core, 6 bottom righthand side 10 of Al-alloy casing are sleeved on 12 upper right side 11 of silicon sheet core, 12 left upper end of silicon sheet core 15 cross section of 12 upper right side 11 of cross section and silicon sheet core and the bottom surface in piston guide hole 3 are to be in approximately the same plane On, left inside cavity 1 is communicated with the left end in piston guide hole 3, and right inner chamber body 5 is communicated with the right end in piston guide hole 3, non-magnetic 4 surface of piston push rod is that tool is threaded, and piston 17 is the square body piston of magnetic conduction, and 17 inner hole of piston has piston thread 18, Right magnetic fluid 7 and left magnetic fluid 2 are separated by piston 17.Adjusting pressuring knob 8 is rotated, piston 17 rotates left and right straight line with piston push rod 4 Movement.
Working principle of the present invention:
Magnetic fluid is a kind of magnetic conduction liquid, and the magnetic permeability ratio of left magnetic fluid 2 and right magnetic fluid 7 is n:1(n>1), therefore identical Under length, same cross-sectional area, the magnetic resistance of right magnetic fluid 7 is n times of the magnetic resistance of left magnetic fluid 2.
When primary coil 14 connects AC power source, the alternating current flowed through on primary coil 14 just generates an alternation Magnetic flux.A part of magnetic flux of this alternating flux passes through secondary coil 13, and secondary coil 13 generates output induced voltage;Another part Magnetic flux passes through the magnetic circuit that is made of magnetic fluid 2 left in piston guide hole 3 and right magnetic fluid 7.
When rotating clockwise adjusting pressuring knob 8, piston push rod 4 pushes piston 17 in piston guide hole 3 along piston push rod 4 Advance to the left, left magnetic fluid 2 flows into left inside cavity 1 from 3 left end of piston guide hole, and the length of left magnetic fluid 2 is reduced.Meanwhile it is right Magnetic fluid 7 flows into 3 right end of piston guide hole from right inner chamber body 5, and the length of right magnetic fluid 7 increases, makes by left magnetic fluid 2 and right magnetic The magnetic resistance for the magnetic circuit that fluid 7 is constituted increases, to reduce the magnetic flux for the magnetic circuit being made of left magnetic fluid 2 and right magnetic fluid 7, increases The magnetic flux across secondary coil 13 is added, the induced voltage that secondary coil 13 exports increases.When piston 17 is displaced to piston guide When 3 left end of hole, left magnetic fluid 2 all flows into left inside cavity 1, and magnetic resistance is maximum at this time, by magnetic flux it is minimum, cause by secondary The magnetic flux of grade coil 13 is maximum, and the output voltage of secondary coil 13 is maximum.
When rotation adjusting pressuring knob 8 counterclockwise, piston push rod 4 pushes piston 17 in piston guide hole 3 along piston push rod 4 It retreats to the right, left magnetic fluid 2 flows into 3 left end of piston guide hole from left inside cavity 1, and the length of left magnetic fluid 2 increases.Meanwhile it is right Magnetic fluid 7 flows into right inner chamber body 5 from 3 right end of piston guide hole, and the length of right magnetic fluid 7 reduces, makes by left magnetic fluid 2 and right magnetic The magnetic resistance for the magnetic circuit that fluid 7 is constituted is reduced, to increase the magnetic flux for the magnetic circuit being made of left magnetic fluid 2 and right magnetic fluid 7, is subtracted The magnetic flux across secondary coil 13 is lacked, the induced voltage that secondary coil 13 exports is reduced.When piston 17 is displaced to piston guide When 3 right end of hole, right magnetic fluid 7 all flows into right inner chamber body 5, and magnetic resistance is minimum at this time, by magnetic flux it is maximum, cause by secondary The magnetic flux of grade coil 13 is minimum, and the output voltage of secondary coil 13 is minimum.
In this way, the magnetic resistance for the magnetic circuit being made of left magnetic fluid 2 and right magnetic fluid 7 is changed by rotation adjusting pressuring knob 8, from And the magnetic flux size by secondary coil 13 is changed, change the output induced voltage of secondary coil 13.Due to being continuously to change The magnetic flux size of secondary coil 13 is crossed in accommodation, realizes the stepless voltage regulation of transformer.
The above is only a preferred embodiment of the present invention, it should be pointed out that:For the ordinary skill people of the art For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered It is considered as protection scope of the present invention.

Claims (6)

1. a kind of transformer based on magnetic fluid, including:Iron core, primary coil, secondary coil, it is characterised in that:Further include:Shell Body, left magnetic fluid, right magnetic fluid are respectively arranged with primary coil, secondary coil on the iron core;Iron core both ends are respectively arranged with Iron core upper right side, iron core left upper end;The housing bottom both ends are respectively arranged with shell bottom righthand side, shell lower-left end;The shell It is horizontally arranged with piston guide hole in vivo, is respectively turned in the shell above the both ends of piston guide hole and is provided with left inside cavity, the right side Inner chamber body is respectively turned in the shell bottom righthand side, shell lower-left end below the both ends of piston guide hole and is provided with through slot, shell bottom right Through slot is mutually clamped with iron core upper right side, iron core left upper end respectively in end, shell lower-left end;Work is provided in the piston guide hole Push rod is filled in, is threaded with piston on piston push rod, piston push rod is provided with adjusting pressuring knob on end;The left inside cavity, work Left magnetic fluid, right inner chamber body, piston the right are provided in the cavity that piston guide hole, the iron core left upper end top on the plug left side are formed Piston guide hole, be provided with right magnetic fluid, the left magnetic fluid and right magnetic fluid in the cavity that is formed at the top of iron core upper right side Magnetic permeability ratio be n:1, n>1.
2. a kind of transformer based on magnetic fluid according to claim 1, it is characterised in that:The piston uses magnetic conduction material Matter.
3. a kind of transformer based on magnetic fluid according to claim 1, it is characterised in that:The iron core uses silicon steel sheet Iron core.
4. a kind of transformer based on magnetic fluid according to claim 1, it is characterised in that:The shell uses aluminium alloy Shell.
5. a kind of transformer based on magnetic fluid according to claim 1, it is characterised in that:The piston push rod has pressure regulation Knob is provided with sealing ring on one end.
6. a kind of transformer based on magnetic fluid according to claim 1, it is characterised in that:N=2.
CN201810562970.9A 2018-06-04 2018-06-04 A kind of transformer based on magnetic fluid Withdrawn CN108922757A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201810562970.9A CN108922757A (en) 2018-06-04 2018-06-04 A kind of transformer based on magnetic fluid
CN201811432224.4A CN109360725A (en) 2018-06-04 2018-11-28 A kind of transformer based on magnetic fluid
CN201821979843.0U CN209515425U (en) 2018-06-04 2018-11-28 A kind of transformer based on magnetic fluid
CN201811588177.2A CN109585145B (en) 2018-06-04 2018-12-25 Be applied to retracting mechanism of bicycle parking stake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810562970.9A CN108922757A (en) 2018-06-04 2018-06-04 A kind of transformer based on magnetic fluid

Publications (1)

Publication Number Publication Date
CN108922757A true CN108922757A (en) 2018-11-30

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Family Applications (4)

Application Number Title Priority Date Filing Date
CN201810562970.9A Withdrawn CN108922757A (en) 2018-06-04 2018-06-04 A kind of transformer based on magnetic fluid
CN201811432224.4A Pending CN109360725A (en) 2018-06-04 2018-11-28 A kind of transformer based on magnetic fluid
CN201821979843.0U Expired - Fee Related CN209515425U (en) 2018-06-04 2018-11-28 A kind of transformer based on magnetic fluid
CN201811588177.2A Active CN109585145B (en) 2018-06-04 2018-12-25 Be applied to retracting mechanism of bicycle parking stake

Family Applications After (3)

Application Number Title Priority Date Filing Date
CN201811432224.4A Pending CN109360725A (en) 2018-06-04 2018-11-28 A kind of transformer based on magnetic fluid
CN201821979843.0U Expired - Fee Related CN209515425U (en) 2018-06-04 2018-11-28 A kind of transformer based on magnetic fluid
CN201811588177.2A Active CN109585145B (en) 2018-06-04 2018-12-25 Be applied to retracting mechanism of bicycle parking stake

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108922757A (en) * 2018-06-04 2018-11-30 湖北文理学院 A kind of transformer based on magnetic fluid
CN113451024B (en) * 2021-06-24 2022-08-12 江苏新特变科技股份有限公司 Stepless voltage regulating transformer

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JP3263161B2 (en) * 1992-12-17 2002-03-04 ティーディーケイ株式会社 Moving magnet type reciprocating fluid machine
JP3419504B2 (en) * 1993-07-05 2003-06-23 国際技術開発株式会社 Reciprocating pump
CN2728585Y (en) * 2004-04-20 2005-09-28 王斐力 Bicycle starter
RU2273907C1 (en) * 2004-12-27 2006-04-10 Калининградский Пограничный Институт Фсб Рф Transformer
US7413205B2 (en) * 2005-09-27 2008-08-19 Magna International Inc. Retractable sidestep
RU2306627C1 (en) * 2005-12-27 2007-09-20 Федеральное государственное образовательное учреждение высшего профессионального образования "Калининградский государственный технический университет" Transformer
RU2361308C1 (en) * 2008-03-24 2009-07-10 Федеральное государственное образовательное учреждение высшего профессионального образования "Калининградский государственный техническийуниверситет" Arc-welding transformer
US8469413B2 (en) * 2010-10-08 2013-06-25 GM Global Technology Operations LLC Adjustable striker for vehicle door latch
KR101392768B1 (en) * 2012-07-02 2014-05-27 전남대학교산학협력단 Control system of magnetic reluctance and self-inductance using partial flux saturation phenomenon of core
CN207000659U (en) * 2017-07-31 2018-02-13 冉佳朋 A kind of bicycle elevator lock frame
CN107610562A (en) * 2017-10-09 2018-01-19 张延艳 A kind of experimental provision for being used to study uniformly accelerated motion
CN108922757A (en) * 2018-06-04 2018-11-30 湖北文理学院 A kind of transformer based on magnetic fluid

Also Published As

Publication number Publication date
CN209515425U (en) 2019-10-18
CN109585145A (en) 2019-04-05
CN109360725A (en) 2019-02-19
CN109585145B (en) 2023-12-15

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WW01 Invention patent application withdrawn after publication

Application publication date: 20181130

WW01 Invention patent application withdrawn after publication