CN110379602A - A kind of oil-immersed transformer - Google Patents
A kind of oil-immersed transformer Download PDFInfo
- Publication number
- CN110379602A CN110379602A CN201910766105.0A CN201910766105A CN110379602A CN 110379602 A CN110379602 A CN 110379602A CN 201910766105 A CN201910766105 A CN 201910766105A CN 110379602 A CN110379602 A CN 110379602A
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- CN
- China
- Prior art keywords
- iron core
- core frame
- frame
- fracture
- oil
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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
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformer Cooling (AREA)
Abstract
The application proposes a kind of oil-immersed transformer, including immersion cooling oil box, it is characterised in that: can iron iron core include that iron core column winds primary coil thereon；Three iron core frames of same size, the top cross-piece and bottom cross-piece of iron core frame B resists the frame inner surface installation of iron core frame A, the top cross-piece and bottom cross-piece of iron core frame C resists the inner surface installation of iron core frame B, three iron core frames, 120 degree of setting distributions of angle two-by-two, corresponding winding is wound on each iron core frame lateral stand bar, winding A, B, C, which is connected, constitutes secondary coil, there is a fracture on the vertical item of one of them of each iron core frame, the corresponding positions of cooling deep-fried twisted dough sticks inner wall are equipped with the contact block with iron core frame same material corresponding to each fracture, contact block filling fracture is connected to iron core frame, and the cross section of item is stood not less than iron core frame with the contact area of fracture；Iron core column is installed from the middle position of three iron core frames, and is connected with each iron core frame；Three iron core frames can be rotated around iron core column.
Description
Technical field
This application involves a kind of transformers, and in particular to a kind of oil-immersed transformer.
Background technique
Transformer is the device for changing the voltage of alternating current using electromagnetic induction principle, main member be primary coil,
Secondary coil and iron core (also referred to as iron core).The working principle that transformer changes alternating voltage is that primary coil is by one or more
Winding is constituted, and winding is wrapped on iron core, after exchange is electrically accessed in primary coil, makes to generate magnetic flux in iron core, these magnetic fluxs
The winding across the secondary coil being equally wrapped on iron core is measured, makes also to generate alternating current in secondary coil.
With the variation of the alternating current of input, the corresponding magnetic flux generated in iron core is different, but the knot of general battery core
After structure and material determine, the maximum magnetic flux that can be generated be it is fixed, after the alternating current of input is more than a certain range, in iron core
Magnetic flux reach maximum value (the referred to as saturation flux of the iron core) and cannot be further added by, reach the iron core mutual inductance performance of saturation flux
Sharply decline, the logical interior energy for being converted into winding of a part electricity easily burns and causes power supply dangerous.Iron core in the prior art is general
Be it is nonadjustable, its saturation flux can not be varied as desired.
In view of the above technical problems, it has had already appeared such as 107195446 A of CN (a kind of magnetic core of transformer and transformer) note
The adjustable iron core carried, being directed at area and control magnetic core using magnetic sleeve pipe and the wide portion of the toroidal core in the program
Magnetic flux or saturation magnetic flux enhance the adjustability of transformer with this.
But in above scheme, the adjustable range of the alignment area of iron core is lower, and changing is not linear change, is only capable of
Qualitatively change the maximum magnetic flux of iron core, it is difficult to quantitatively calculate magnetic flux size adjusted.
Simultaneously can be changed in iron core scheme in other because being also related to the dismounting of iron core local element, movable part with
The contact surface of fixed part is easy to wear and poor contact, causes to open a way, loses regulatory function.
In addition, transformer mostly uses the mode of oil immersion during operation because magnetostrictive effect makes core vibration and fever
It is cooled down, the main member of entire transformer will be completely immersed in fuel tank, be taken up a large area, space utilization rate is low.
Summary of the invention
(1) the targeted technical problem of the application
For above situation, the main technical problems to be solved of the application are: providing one kind, can to adjust iron core on a large scale full
With the transformer of magnetic flux；
The further technical problems to be solved of the application are: the regulated quantity of above-mentioned saturation flux being made to be easy to calculate；
The application will further solve the problems, such as: overcome the contact surface open circuit that may cause when adjusting variable iron core repeatedly
Risk.
(2) technical solution of the application
In order to solve the above technical problems, the application proposes a kind of oil-immersed transformer, including immersion cooling oil box, immerse
Primary coil, secondary coil, the variable iron core of the cooling oil box, it is characterised in that:
It is described can iron iron core include,
Iron core column winds primary coil thereon；
Three iron core frames (A, B, C) of same size, the top cross-piece and bottom cross-piece of iron core frame B resist iron core frame A's
The installation of frame inner surface, the top cross-piece and bottom cross-piece of iron core frame C resist the inner surface installation of iron core frame B,
Three iron core frames, 120 degree of settings of angle distribution two-by-two, be wound on each iron core frame lateral stand bar corresponding winding (A,
B, C), winding A, B, C, which are connected, constitutes secondary coil,
There is a fracture on the vertical item of one of them of each iron core frame, the corresponding positions of cooling deep-fried twisted dough sticks inner wall are equipped with corresponding to each
The contact block with iron core frame same material of fracture, contact block filling fracture are connected to iron core frame, and not small with the contact area of fracture
The cross section of item is stood in iron core frame；
The iron core column is installed from the middle position of three iron core frames, and is connected with each iron core frame；
Three iron core frames can carry out the rotation of certain angle around iron core column；
Preferably, the iron core frame is silicon steel.
According to an embodiment of the present application, the section up and down of the fracture is parallel surface, and cross sectional shape is rectangle, the contact block
Cross-sectional shape be sector, the length of straight flange of sector is greater than or equal to the width of the vertical item of corresponding iron core frame, fan-shaped circle
The heart is overlapped with the rotation center of iron core frame.
According to an embodiment of the present application, the contact surface fit system of fracture and contact block is the clearance fit or mistake being in close contact
It is full of cooperation.
According to an embodiment of the present application, the stupefied side in the left and right of fracture and contact block is chamfering or fillet.
According to an embodiment of the present application, the cooling oil box is the cylinder coaxial with iron core column.
According to an embodiment of the present application, the contact surface between three iron core frames is insulated contact.
It according to an embodiment of the present application, further include regulating mechanism and master controller, regulating mechanism can pass through according to user
Three iron core frames are turned over the angle of setting by the instruction that master controller issues, and making the practical core section product for accessing circuit is needs
Value or even open circuit, and pass through geometry calculate display current pass the number of windings and adjusting after saturation flux theoretical value.
According to an embodiment of the present application, regulating mechanism includes the key that iron core column is coupled with iron core frame, and iron core column can be by cold
But the mechanism outside fuel tank drives rotation.
(3) beneficial effect
The beneficial effect of the application is:
1. the saturation flux of the iron core (since open circuit) can be adjusted on a large scale, and three iron core frames can be adjusted respectively
Section, regulative mode are flexible；
2. accessing fracture section always a part of its section rectangle and a rectangle for iron core, facilitate theoretical calculation；
3. the cooling oil in oil-immersed type cooler bin has acted in effect as the function of lubricating oil, make living repeatedly for fracture and contact block
Dynamic adjusting not will cause abrasion open circuit；
4. traditional cube shaped transformer global shape is optimized for cylinder, more bodies can be accommodated in unit area
Long-pending cooling oil (with cylindrical volume highest under homalographic).
Detailed description of the invention
Attached drawing is the transformer device structure schematic diagram after eliminating the conventional structures such as fuel tank cap, binding post, distributing box,
In:
Fig. 1 is the assembling schematic diagram of the oil-immersed transformer of the application；
Fig. 2 is the cooperation partial enlarged view of iron core fracture and contact block；
Appended drawing reference:
1. cooling oil box
2. iron core column
3. iron core frame A
4. iron core frame B
5. iron core frame C
6. secondary coil winding
7. primary coil
8. contact block
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, with reference to the accompanying drawing and specific embodiment party
Formula elaborates to the present invention.
Referring to Fig. 1, a kind of oil-immersed transformer, including immersion cooling oil box 1, immerse the primary coil of the cooling oil box
7, secondary coil 6, variable iron core, it is characterised in that:
It is described can iron iron core include,
Iron core column 2 winds primary coil 7 thereon；
Three iron core frames (A, B, C) of same size, the top cross-piece and bottom cross-piece of iron core frame B resist iron core frame A's
The installation of frame inner surface, the top cross-piece and bottom cross-piece of iron core frame C resist the inner surface installation of iron core frame B,
Three iron core frames, 120 degree of settings of angle distribution two-by-two, be wound on each iron core frame lateral stand bar corresponding winding (A,
B, C), winding A, B, C, which are connected, constitutes secondary coil,
There is a fracture on the vertical item of one of them of each iron core frame, the corresponding positions of cooling deep-fried twisted dough sticks inner wall are equipped with corresponding to each
The contact block 8 with iron core frame same material of fracture, contact block filling fracture are connected to iron core frame, and not small with the contact area of fracture
The cross section of item is stood in iron core frame；
The iron core column is installed from the middle position of three iron core frames, and is connected with each iron core frame；
Three iron core frames can carry out the rotation of certain angle around iron core column；
Preferably, the iron core frame is silicon steel.
Primary coil accesses iron core column in above scheme, and the magnetic flux of generation is dispersed into each iron core frame, and secondary coil is
On each iron core frame winding be connected forms, total magnetic flux is identical as in iron core column (in the case where not considering leakage field), iron core frame around
After iron core column rotation, the cross-sectional area of access magnetic circuit changes, that is, achievees the effect that adjust maximum saturation magnetic flux.
Referring to fig. 2, according to an embodiment of the present application, the section up and down of the fracture be parallel surface, the contact block it is transversal
Face shape is sector, and the length of straight flange of the sector is greater than or equal to the width that corresponding iron core frame founds item, the fan-shaped center of circle and iron
The rotation center of core frame is overlapped.
According to an embodiment of the present application, the contact surface fit system of fracture and contact block is the clearance fit or mistake being in close contact
It is full of cooperation.
According to an embodiment of the present application, the stupefied side in the left and right of fracture and contact block is chamfering or fillet.
It (is one of fracture section that the cross section of contact block sector, which makes the cross sectional shape of practical access magnetic circuit always be a rectangle,
Point), it can be according to the electromagnetism design calculation formula of iron core according to the angle calculation turned over theoretical saturation flux adjusted；Together
When the contact block contact surface of clearance fit or interference fit that is in close contact make not will cause open circuit after adjusting, and immerse in fuel tank
Make active face sufficient lubrication, abrasion will not be generated and cause to open a way.
According to an embodiment of the present application, the contact surface between three iron core frames is insulated contact.
It according to an embodiment of the present application, further include regulating mechanism and master controller, regulating mechanism can pass through according to user
Three iron core frames are turned over the angle of setting by the instruction that master controller issues, and making the practical core section product for accessing circuit is needs
Value or even open circuit, and pass through geometry calculate display current pass the number of windings and adjusting after saturation flux theoretical value.
According to an embodiment of the present application, regulating mechanism includes the key that iron core column is coupled with iron core frame, and iron core column can be by cold
But the mechanism outside fuel tank drives rotation.
Insulated contact can prevent the distortion of magnetic circuit between iron core frame；Three iron core frames can be adjusted independently of each other to provide
Maximum accommodative facility can also rotate synchronously adjusting, to provide simplest institution requests.
Above embodiments are only exemplary embodiment of the present invention, are not used in the limitation present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art can within the spirit and scope of the present invention make respectively the present invention
Kind modification or equivalent replacement, this modification or equivalent replacement also should be regarded as being within the scope of the present invention.
Claims (8)
1. a kind of oil-immersed transformer, including immersion cooling oil box, immerse the primary coil of the cooling oil box, secondary coil,
Variable iron core, it is characterised in that:
It is described can iron iron core include,
Iron core column winds primary coil thereon；
Three iron core frames (A, B, C) of same size, the top cross-piece and bottom cross-piece of iron core frame B resist in the frame of iron core frame A
Surface installation, the top cross-piece and bottom cross-piece of iron core frame C resist the inner surface installation of iron core frame B,
Three iron core frames, 120 degree of settings of angle distribution two-by-two, be wound on each iron core frame lateral stand bar corresponding winding (A, B,
C), winding A, B, C, which is connected, constitutes secondary coil,
There is a fracture on the vertical item of one of them of each iron core frame, the corresponding positions of cooling deep-fried twisted dough sticks inner wall are equipped with corresponding to each fracture
The contact block with iron core frame same material, contact block filling fracture make iron core frame be connected to, and with the contact area of fracture be not less than iron
Core frame stands the cross section of item；
The iron core column is installed from the middle position of three iron core frames, and is connected with each iron core frame；
Three iron core frames can carry out the rotation of certain angle around iron core column；
Preferably, the iron core frame is silicon steel.
2. the oil-immersed transformer according to claim 1, which is characterized in that the section up and down of fracture is parallel surface,
Cross sectional shape is rectangle, and the cross-sectional shape of the contact block is sector, and the length of straight flange of the sector is greater than or equal to corresponding iron
Core frame founds the width of item, and the fan-shaped center of circle is overlapped with the rotation center of iron core frame.
3. the oil-immersed transformer according to claim 1, which is characterized in that the contact surface cooperation side of fracture and contact block
Formula is the clearance fit or interference fit being in close contact.
4. the oil-immersed transformer according to claim 1, which is characterized in that the stupefied side in the left and right of fracture and contact block is to fall
Angle or fillet.
5. the oil-immersed transformer according to claim 1, which is characterized in that the cooling oil box is same with iron core column
The cylinder of axis.
6. the oil-immersed transformer according to claim 1, which is characterized in that the contact surface between three iron core frames is
Insulated contact.
7. the oil-immersed transformer according to claim 1, which is characterized in that it further includes regulating mechanism and main control
Three iron core frames can be turned over the angle of setting according to the instruction that user is issued by master controller, make to access by device, regulating mechanism
The practical core section product of circuit is the value or even open circuit needed, and passes through the number of windings and tune that geometry calculates display current pass
The theoretical value of saturation flux after section.
8. the oil-immersed transformer according to claim 1, which is characterized in that its regulating mechanism includes iron core column and iron
The key that core frame is coupled, iron core column can be driven by the mechanism outside cooling oil box and be rotated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910766105.0A CN110379602B (en) | 2019-08-19 | 2019-08-19 | Oil-immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910766105.0A CN110379602B (en) | 2019-08-19 | 2019-08-19 | Oil-immersed transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110379602A true CN110379602A (en) | 2019-10-25 |
| CN110379602B CN110379602B (en) | 2021-03-23 |
Family
ID=68259996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910766105.0A Active CN110379602B (en) | 2019-08-19 | 2019-08-19 | Oil-immersed transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110379602B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2183102A (en) * | 1985-11-16 | 1987-05-28 | Harold Aspden | Alternating current rotary convertors |
| CN1758388A (en) * | 2005-07-28 | 2006-04-12 | 戴文育 | Multi-magnetic power energy transformer (magnetic generator) |
| CN201498321U (en) * | 2009-06-25 | 2010-06-02 | 清流县鑫磁线圈制品有限公司 | U1 type combined magnetic core with finely adjustable air gap |
| WO2013072373A1 (en) * | 2011-11-14 | 2013-05-23 | Igus Gmbh | Inductive rotary transmitter |
| CN107195446A (en) * | 2017-07-26 | 2017-09-22 | 南通壹选工业设计有限公司 | A kind of magnetic core of transformer and transformer |
| CN206991863U (en) * | 2017-07-11 | 2018-02-09 | 山东巨恒电子有限责任公司 | A kind of day font magnetic ferrite magnetic core |
-
2019
- 2019-08-19 CN CN201910766105.0A patent/CN110379602B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2183102A (en) * | 1985-11-16 | 1987-05-28 | Harold Aspden | Alternating current rotary convertors |
| CN1758388A (en) * | 2005-07-28 | 2006-04-12 | 戴文育 | Multi-magnetic power energy transformer (magnetic generator) |
| CN201498321U (en) * | 2009-06-25 | 2010-06-02 | 清流县鑫磁线圈制品有限公司 | U1 type combined magnetic core with finely adjustable air gap |
| WO2013072373A1 (en) * | 2011-11-14 | 2013-05-23 | Igus Gmbh | Inductive rotary transmitter |
| CN206991863U (en) * | 2017-07-11 | 2018-02-09 | 山东巨恒电子有限责任公司 | A kind of day font magnetic ferrite magnetic core |
| CN107195446A (en) * | 2017-07-26 | 2017-09-22 | 南通壹选工业设计有限公司 | A kind of magnetic core of transformer and transformer |
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| Publication number | Publication date |
|---|---|
| CN110379602B (en) | 2021-03-23 |
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Denomination of invention: An oil immersed transformer Effective date of registration: 20220929 Granted publication date: 20210323 Pledgee: Ji'nan finance Company limited by guarantee Pledgor: JINAN QINGHE ELECTRIC Co.,Ltd. Registration number: Y2022980017018 |