CN110299242A - A kind of single-phase dry type high frequency transformer - Google Patents
A kind of single-phase dry type high frequency transformer Download PDFInfo
- Publication number
- CN110299242A CN110299242A CN201910605270.8A CN201910605270A CN110299242A CN 110299242 A CN110299242 A CN 110299242A CN 201910605270 A CN201910605270 A CN 201910605270A CN 110299242 A CN110299242 A CN 110299242A
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- China
- Prior art keywords
- magnetic core
- low pressure
- winding
- pressure winding
- high frequency
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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
- H01F27/085—Cooling by ambient air
-
- 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
- H01F27/22—Cooling by heat conduction through solid or powdered fillings
-
- 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
- H01F27/25—Magnetic cores made from strips or ribbons
-
- 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
- H01F27/2823—Wires
-
- 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
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformer Cooling (AREA)
Abstract
The invention discloses a kind of single-phase dry type high frequency transformers.The transformer includes upper mounted plate, bottom plate and support rod, and transformer body is set between upper and lower fixing plate；The transformer body includes magnetic core, heat-conducting resin item, low pressure winding, high-voltage winding and insulating resin；Heat-conducting resin item is mounted on magnetic core two sides outer wall；Low pressure winding is wound on the outside of magnetic core and heat-conducting resin item；High-voltage winding is wound on the outside of low pressure winding；Insulating resin wraps magnetic core, low pressure winding and high-voltage winding；At the upper surface center of upper mounted plate and side offers cavity, and rib wing radiator, the total binding post of high-low pressure winding that setting is electrically connected with transformer body in the cavity of side are arranged in the cavity at upper surface center；Two cavitys are opened up on bottom plate, which is located at the lower section of magnetic core column, and an air-cooled radiator is arranged in each cavity.The present invention has the advantages that structure is simple, thermal diffusivity is strong, stability is good, long service life.
Description
Technical field
The invention belongs to electrical energy changer technical field, especially a kind of single-phase dry type high frequency transformer.
Background technique
Electric power electric transformer is a kind of novel transformer, by power electronic devices and Technics of Power Electronic Conversion technology into
The conversion and control of row energy.For traditional transformer, electric power electric transformer volume is smaller, and weight is lighter, has
Section material and energy-efficient advantage, electric power electric transformer have broad application prospects in future electrical energy field, not only can be with
The scheme of flexible access is provided for renewable energy, it can also be ensured that the power quality of field of power system sufficiently meets electric power
Demand of the user to power supply reliability, safety, flexibility and economy.
High frequency transformer is the core of electric power electric transformer device, mainly plays isolation, transformation and transimission power.
High frequency transformer is made of magnetic core and the armature winding being wound on magnetic core with secondary windings, using electromagnetic induction principle, according to
The armature winding voltage different from secondary windings, to realize the conversion of voltage.But common material can produce in high frequency magnetic field
Raw a large amount of losses, so that the operating temperature of transformer is excessively high, influence the working efficiency of transformer, reduce the work longevity of transformer
Life.Lack in existing literature for the design of the single-phase dry type high frequency transformer of nanocrystalline material production magnetic core, ignores simultaneously
Optimization to transformer radiator structure, this has a very big impact the reasonable working temperature of transformer.
Summary of the invention
That the object of the present invention is to provide a kind of structures is simple, thermal diffusivity is strong, stability is good, single-phase dry type with long service life
High frequency transformer.
The technical solution for realizing the aim of the invention is as follows: a kind of single-phase dry type high frequency transformer, including upper mounted plate, under
Fixed plate, the quadrangle of bottom plate are respectively arranged a support rod and are used to support upper mounted plate, and transformer body is set to fixation
Between plate, bottom plate；
The transformer body includes magnetic core, heat-conducting resin item, low pressure winding, high-voltage winding and insulating resin；It is described to lead
Hot resin item is mounted on magnetic core two sides outer wall；The low pressure winding is wound on the outside of magnetic core and heat-conducting resin item；The high voltage winding
Group is wound on the outside of low pressure winding；The insulating resin wraps magnetic core, low pressure winding and high-voltage winding；
At the upper surface center of fixed plate and side offers cavity, and rib is arranged in the cavity at upper surface center
Wing radiator, the cavity of side is interior to be arranged the total binding post of high-low pressure winding, the total binding post of high-low pressure winding and transformer body electricity
Property connection；
Two cavitys are opened up on the bottom plate, which is located at the lower section of magnetic core column, and each sky
One air-cooled radiator of intracavitary setting.
Further, anti-skidding base angle is respectively set in the bottom four corners of the fixed plate.
Further, fixed plate, bottom plate and support rod are all made of non-magnetic stainless steel material and are made.
Further, the magnetic core is made of nanocrystalline material.
Further, the high-voltage winding and low pressure winding are made of litz wire.
Further, the high-voltage winding is identical with the number of turns of low pressure winding.
Further, the rib wing radiator is fixed by heat conductive silica gel and magnetic core upper yoke portion, and heat-conducting resin item is by leading
Hot silica gel is fixed with magnetic core side.
Compared with prior art, the present invention its remarkable advantage are as follows: (1) magnetic core using nanocrystalline strip be made, so that
Transformer can work in higher working frequency, while reduce the core loss of high frequency transformer；(2) high-voltage winding and low
It presses winding to carry out coiling using litz wire, reduces the winding loss of high frequency transformer；(3) efficient radiator structure, drop are used
The low operating temperature of transformer, improves the job security of transformer, extends working life.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of single-phase dry type high frequency transformer of the present invention.
In figure: 1 is upper mounted plate, and 2 be bottom plate, and 3 be support rod, and 4 be transformer body, and 5 is total for high-low pressure winding
Binding post, 6 be rib wing radiator, and 7 be magnetic core, and 8 be air-cooled radiator, and 9 be anti-skidding base angle, and 10 be heat-conducting resin item, and 11 be low
Winding is pressed, 12 be high-voltage winding, and 13 be insulating resin.
Specific embodiment
In conjunction with Fig. 1, single-phase dry type high frequency transformer of the present invention, including upper mounted plate 1, bottom plate 2, bottom plate 2
Quadrangle is respectively arranged a support rod 3 and is used to support upper mounted plate 1, transformer body 4 be set to upper mounted plate 1, bottom plate 2 it
Between；
The transformer body 4 includes magnetic core 7, heat-conducting resin item 10, low pressure winding 11, high-voltage winding 12 and insulating resin
13；The heat-conducting resin item 10 is mounted on 7 two sides outer wall of magnetic core；The low pressure winding 11 is wound on magnetic core 7 and heat-conducting resin item
10 outsides；The high-voltage winding 12 is wound on 11 outside of low pressure winding；The insulating resin 13 wraps magnetic core 7, low pressure winding
11 and high-voltage winding 12；
At the upper surface center of fixed plate 1 and side offers cavity, setting in the cavity at upper surface center
Rib wing radiator 6, the cavity of side is interior to be arranged the total binding post 5 of high-low pressure winding, the total binding post 5 of high-low pressure winding and transformer master
Body 4 is electrically connected；
Two cavitys are opened up on the bottom plate 2, which is located at the lower section of 7 column of magnetic core, and each
One air-cooled radiator 8 is set in cavity.
Further, anti-skidding base angle 9 is respectively set in the bottom four corners of the fixed plate 2.
Further, fixed plate 1, bottom plate 2 are all made of non-magnetic stainless steel material with support rod 3 and are made.
Further, the magnetic core 7 is made of nanocrystalline material.
Further, the high-voltage winding 11 and low pressure winding 12 are made of litz wire.
Further, the high-voltage winding 11 is identical with the number of turns of low pressure winding 12.
Further, the rib wing radiator 6 is fixed by heat conductive silica gel and 7 upper yoke portion of magnetic core, and heat-conducting resin item 10 is logical
Heat conductive silica gel is crossed to fix with 7 side of magnetic core.
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Embodiment
In conjunction with Fig. 1, the present invention plants single-phase dry type high frequency transformer, including upper mounted plate 1, bottom plate 2, support rod 3, change
The total binding post 5 of depressor main body 4, high-low pressure winding, rib wing radiator 6, air-cooled radiator 8 and anti-skidding base angle 9；
The transformer body 4 includes magnetic core 7, heat-conducting resin item 10, low pressure winding 11, high-voltage winding 12 and insulating resin
13；The magnetic core 7 is rolled by nanocrystalline strip, and the heat-conducting resin item 10 is made of high thermal conductivity resin, using leading
Hot silica gel is fixed on 7 side of magnetic core；The high-voltage winding 12 is made of customization litz wire, low pressure winding 11 be wound on magnetic core 7 with
10 outside of heat-conducting resin item, apart from magnetic core column 15mm；The high-voltage winding 12 is made of customization litz wire, be wound on low pressure around
11 outside of group, apart from low pressure winding 11 apart from for 10mm, high-low pressure umber of turn is identical, the coiling 5 on each magnetic core column
Circle makes mutually be punctured between column there are a fixed gap between two windings；The insulating resin 13 wraps magnetic core
7, low pressure winding 11 and high-voltage winding 12,13 outermost of insulating resin are more than low pressure winding 3mm, and insulating resin 13 carries out piecemeal and pours
It builds, reserves air flue among transformer window.
Fixed plate 1 is made of non-magnetic stainless steel material, is provided with sky at the side and center of upper mounted plate
Chamber, the total binding post 5 of high-low pressure winding are mounted in 1 side cavities of upper mounted plate, are electrically connected with the transformer body 4
It connects；The rib wing radiator 6 is mounted in the center cavity of upper mounted plate 1, by heat conductive silica gel by radiator and 7 upper yoke of magnetic core
Portion is fixed.
The bottom plate 2 is made of non-magnetic stainless steel material, the underface of 2 inner core of bottom plate, 7 column
It is provided with cavity, the air-cooled radiator 8 is mounted in the cavity of bottom plate 2, and air-cooled radiator 8 will rouse from bottom to top
Wind.The anti-skidding base angle 9 is mounted on 2 lower section of bottom plate, and anti-slip layer is installed in the bottom at anti-skidding base angle 9；The support rod 3 is not by
The stainless steel material of magnetic conduction is made, and is mounted on upper mounted plate 1 and 2 surrounding of bottom plate, is connected and fixed bottom plate, makes it not
It shifts.
Magnetic core of transformer of the present invention is made using nanocrystalline strip, and transformer is worked in higher work
Frequency, while reducing the core loss of high frequency transformer；High-voltage winding and low pressure winding are reduced using litz wire progress coiling
The winding loss of high frequency transformer；Using efficient radiator structure, the operating temperature of transformer is reduced, transformer is improved
Job security, extend the working life of transformer.
Claims (7)
1. a kind of single-phase dry type high frequency transformer, which is characterized in that including upper mounted plate (1), bottom plate (2), bottom plate
(2) quadrangle is respectively arranged a support rod (3) and is used to support upper mounted plate (1), and transformer body (4) is set to upper mounted plate
(1), between bottom plate (2)；
The transformer body (4) include magnetic core (7), heat-conducting resin item (10), low pressure winding (11), high-voltage winding (12) and absolutely
Edge resin (13)；The heat-conducting resin item (10) is mounted on magnetic core (7) two sides outer wall；The low pressure winding (11) is wound on magnetic core
(7) and on the outside of heat-conducting resin item (10)；The high-voltage winding (12) is wound on the outside of low pressure winding (11)；The insulating resin
(13) magnetic core (7), low pressure winding (11) and high-voltage winding (12) are wrapped；
At the upper surface center of fixed plate (1) and side offers cavity, and rib is arranged in the cavity at upper surface center
Wing radiator (6), the cavity of side is interior to be arranged the total binding post of high-low pressure winding (5), the total binding post of high-low pressure winding (5) and transformation
Device main body (4) is electrically connected；
Two cavitys are opened up on the bottom plate (2), which is located at the lower section of magnetic core (7) column, and each
One air-cooled radiator (8) is set in cavity.
2. single-phase dry type high frequency transformer according to claim 1, which is characterized in that the bottom four of the fixed plate (2)
Anti-skidding base angle (9) are respectively set in angle.
3. single-phase dry type high frequency transformer according to claim 1, which is characterized in that fixed plate (1), lower fixation
Plate (2) is all made of non-magnetic stainless steel material with support rod (3) and is made.
4. single-phase dry type high frequency transformer according to claim 1, which is characterized in that the magnetic core (7) is using nanocrystalline
Material is made.
5. single-phase dry type high frequency transformer according to claim 1, which is characterized in that the high-voltage winding (11) and low pressure
Winding (12) is made of litz wire.
6. single-phase dry type high frequency transformer according to claim 1, which is characterized in that the high-voltage winding (11) and low pressure
The number of turns of winding (12) is identical.
7. single-phase dry type high frequency transformer according to claim 1, which is characterized in that the rib wing radiator (6) passes through
Heat conductive silica gel is fixed with magnetic core (7) upper yoke portion, and heat-conducting resin item (10) is fixed by heat conductive silica gel and magnetic core (7) side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910605270.8A CN110299242A (en) | 2019-07-05 | 2019-07-05 | A kind of single-phase dry type high frequency transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910605270.8A CN110299242A (en) | 2019-07-05 | 2019-07-05 | A kind of single-phase dry type high frequency transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110299242A true CN110299242A (en) | 2019-10-01 |
Family
ID=68030481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910605270.8A Pending CN110299242A (en) | 2019-07-05 | 2019-07-05 | A kind of single-phase dry type high frequency transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110299242A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112382476A (en) * | 2020-10-19 | 2021-02-19 | 上海置信智能电气有限公司 | Transformer coil, transformer and transformer manufacturing method |
| CN113077964A (en) * | 2021-03-03 | 2021-07-06 | 南京南瑞继保电气有限公司 | Dry-type high-frequency transformer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998034250A1 (en) * | 1997-02-03 | 1998-08-06 | Asea Brown Boveri Ab | A winding in an electric machine with stationary parts |
| CN202551603U (en) * | 2012-04-23 | 2012-11-21 | 深圳市晶福源电子技术有限公司 | Device provided with radiator |
| CN107204233A (en) * | 2016-03-18 | 2017-09-26 | 福建新大陆环保科技有限公司 | A kind of Large Copacity dry type high frequency high voltage transformer |
-
2019
- 2019-07-05 CN CN201910605270.8A patent/CN110299242A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998034250A1 (en) * | 1997-02-03 | 1998-08-06 | Asea Brown Boveri Ab | A winding in an electric machine with stationary parts |
| CN202551603U (en) * | 2012-04-23 | 2012-11-21 | 深圳市晶福源电子技术有限公司 | Device provided with radiator |
| CN107204233A (en) * | 2016-03-18 | 2017-09-26 | 福建新大陆环保科技有限公司 | A kind of Large Copacity dry type high frequency high voltage transformer |
Non-Patent Citations (1)
| Title |
|---|
| 王全保: "《新编电子变压器手》", 30 June 2007, 辽宁科学技术出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112382476A (en) * | 2020-10-19 | 2021-02-19 | 上海置信智能电气有限公司 | Transformer coil, transformer and transformer manufacturing method |
| CN113077964A (en) * | 2021-03-03 | 2021-07-06 | 南京南瑞继保电气有限公司 | Dry-type high-frequency transformer |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191001 |