CN107275042A - A kind of pressure-resistant isolating transformer of high frequency height insulation - Google Patents
A kind of pressure-resistant isolating transformer of high frequency height insulation Download PDFInfo
- Publication number
- CN107275042A CN107275042A CN201710316642.6A CN201710316642A CN107275042A CN 107275042 A CN107275042 A CN 107275042A CN 201710316642 A CN201710316642 A CN 201710316642A CN 107275042 A CN107275042 A CN 107275042A
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- Prior art keywords
- coil winding
- winding
- pressure
- high frequency
- isolating transformer
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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
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
-
- 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
- H01F27/006—Details of transformers or inductances, in general with special arrangement or spacing of turns of the winding(s), e.g. to produce desired self-resonance
-
- 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
- H01F27/02—Casings
- H01F27/022—Encapsulation
-
- 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
- H01F27/28—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
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
- H01F27/2828—Construction of conductive connections, of leads
-
- 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
- H01F27/29—Terminals; Tapping arrangements for signal inductances
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformer Cooling (AREA)
Abstract
The invention discloses a kind of pressure-resistant isolating transformer of high frequency height insulation, including upper mounted plate and bottom plate, core assembly is fixed between upper mounted plate and bottom plate, two or more is arranged with core assembly in spaced apart primary coil winding and secondary coil winding successively, each primary coil winding or secondary coil winding are by single line cable in two layers above and below plane coiling formation, cable elder generation ecto-entad is set around on core assembly in plane during coiling forms lower floor, it is in plane winding from inside to outside after spiral to last layer again so that the cable end of incoming cables and leading-out terminal of primary coil winding or secondary coil winding are drawn by the outside of winding.The present invention has the advantages that reasonable, simple and compact for structure, lightweight design science, small volume, good heat dissipation effect, degree of protection are high.
Description
Technical field
Present invention relates generally to field of railway transportation equipment, a kind of high frequency height insulation for track traffic is refered in particular to pressure-resistant
Isolating transformer.
Background technology
China's trunk railway transport at this stage is based on high-power electric locomotive heavy traction, and diesel locomotive is branch line traction
Important supplement；Particularly the transport of the power grid maintenance area in hardship such as northeast, the Northwest, Qinghai-Tibet and other branch lines is appointed
Business also needs to diesel locomotive to undertake.For railway transport of passengers, diesel locomotive exists between Locomotive Axle Load and speed requirement all the time
Contradictory problems.The adaptable novel internal combustion locomotive platform of a power grade, driving power and transportation demand is built, and is put down herein
The diesel locomotive that suitable Chinese Railway needs at this stage are developed under platform is particularly important.Due to locomotive to row for system weight, volume
It is required that it is very high, so row are accomplished by realizing high frequency reducing its weight, body for the DC/DC power supplys of the 400kW in system
Product, while needing high input voltage to export electrical isolation with low pressure.Realize the part of 400kW DC-DC isolated converter most criticals
It is exactly high pressure, high frequency, powerful isolating transformer.The isolating transformer of prior art mainly has two kinds：One is to use AC/DC
Topological mode, the frequency of transformer is 50Hz, and magnetic core selects silicon steel sheet, and the type of cooling is water cooling.Two be that topology is opened up for DC/DC
Mode is flutterred, transformer is by the way of full embedding, and magnetic core is ferrite, and the type of cooling is forced air cooling.It is respectively present following skill
Art problem：
（1）Transformer uses power frequency 50Hz frequency, and magnetic core silicon steel sheet causes weight weight, volume big, and use water cooling side
Formula, structural manufacturing process is complicated, and cost is high.
（2）Transformer by the way of full embedding, it is necessary to magnetic core, line bag are carried out into embedding with metal shell and heat-conducting glue,
Cause that volume is big, weight weight, high expensive carries out wind-cooling heat dissipating, radiating effect is bad with the mode of heat-conducting glue.
（3）Transformer degree of protection is relatively low.
The content of the invention
The technical problems to be solved by the invention are：The problem of existing for prior art, the present invention provides one kind and set
Count the high height for track traffic of scientific and reasonable, simple and compact for structure, lightweight, small volume, good heat dissipation effect, degree of protection
The high pressure-resistant isolating transformer of insulation of frequency.
In order to solve the above technical problems, the present invention uses following technical scheme：
A kind of pressure-resistant isolating transformer of high frequency height insulation, including upper mounted plate and bottom plate, fixed plate and lower fixation
It is fixed between plate on core assembly, the core assembly and is arranged with two or more in spaced apart primary coil winding successively
With secondary coil winding, each the primary coil winding or secondary coil winding are formed by single line cable in plane coiling
Lower two layers, the first ecto-entad of the cable is set around formation lower floor on core assembly in plane during coiling, spiral is to last layer again
Afterwards from inside to outside be in plane winding so that primary coil winding or secondary coil winding cable end of incoming cables and leading-out terminal by around
Draw in group outside.
As a further improvement on the present invention, the core assembly includes two relative E-type magnetic cores for closing up setting, described
Primary coil winding or secondary coil winding are set around on the center pillar of E-type magnetic core and insulation are left between the lateral column of both sides
Gap.
As a further improvement on the present invention, coiling multilayer insulation successively from the inside to the outside on the center pillar of the E-type magnetic core
After adhesive tape and poly- fragrant paper, further around setting primary coil winding or secondary coil winding.
As a further improvement on the present invention, the every cable by many litz wires it is stranded formed, it is stranded after it is many
Root litz wire is provided with protection outer layer, and the protection outer layer is carried out after parcel winding by high temperature high voltage resistant adhesive tape and glass cloth successively
Formed.
As a further improvement on the present invention, two symmetrically arranged first hole slots and are offered on fixed plate
Two hole slots, the cable end of incoming cables of the primary coil winding and leading-out terminal are protruded upward at the first hole slot, the secondary line
The cable end of incoming cables and leading-out terminal for enclosing winding are protruded upward at the second hole slot.
As a further improvement on the present invention, the fixation spiral shell provided with many settings between fixed plate and bottom plate
Bolt is further fixed on two pieces of sides being symmetrical set so that both to be fixed between fixed plate and bottom plate
Fixed plate, two pieces of side fixed plates at the outer wall of E-type magnetic core both sides lateral column respectively close to fixing, for core assembly
Form side shield.
As a further improvement on the present invention, multiple ventilating heat dissipating holes are offered in every piece of side fixed plate.
As a further improvement on the present invention, offered on the bottom surface of fixed plate and the top surface of bottom plate
Depressed part, the core assembly and side fixed plate, which block to set, to be fixed in depressed part.
As a further improvement on the present invention, be equipped with the depressed part of fixed plate and bottom plate insulation board 8,
For making to form insulating barrier between upper mounted plate, bottom plate and core assembly.
As a further improvement on the present invention, the transformer is provided with integral protection layer to prevent transformer
Shield, the integral protection layer by transformer form after vacuum paint dipping applies leaching underwater paint again on impregnating varnish layer, the impregnating varnish layer.
Compared with prior art, the advantage of the invention is that：
（1）The pressure-resistant isolating transformer of high frequency height insulation of the present invention, one is to coordinate special in flat by special structure design
Face winding coil windings, reduce the space of winding outlet so that transformer compact overall structure, small volume is lightweight, especially
Suitable for the small space mounting of rail traffic vehicles and application.Two be that primary coil winding and secondary coil winding are spaced cloth successively
The form put, enhances the coupling between former secondary coil winding, reduces the leakage inductance of transformer, more meets high pressure, high frequency, big
The need of work of power isolation transformer.
（2）The pressure-resistant isolating transformer of high frequency height insulation of the present invention, provided with integral protection layer, one is due to that degree of protection can
IP54 is reached, winding, the magnetic core of transformer no longer need embedding to ensure its degree of protection, then coordinate above-mentioned special structure shape
Formula so that transformer can directly cool down transformer using air-cooled form, compared to the cooling of embedding mode, cooling wind can
Directly the caloric value of winding, magnetic core is directly blown away so that radiating effect more preferably, extremely meets high pressure, high frequency, high-power isolation
The radiating requirements of transformer.Two be under the cooperation of said structure, to eliminate casting glue, metal shell, further mitigates change
The overall weight of depressor, further such that transformer compact overall structure, small volume.
（3）Coiling successively from the inside to the outside on the pressure-resistant isolating transformer of high frequency height insulation of the present invention, the center pillar of E-type magnetic core
Multilayer insulation adhesive tape is equipped with by high temperature high voltage resistant with poly- fragrant paper, and every cable of primary coil winding or secondary coil winding
Adhesive tape and glass cloth carry out the protection outer layer formed after parcel winding so that isolating transformer height insulation of the invention is pressure-resistant.
Brief description of the drawings
Fig. 1 is the stereochemical structure principle schematic of the pressure-resistant isolating transformer of high frequency height insulation of the present invention.
Fig. 2 is the decomposition texture principle schematic of the pressure-resistant isolating transformer of high frequency height insulation of the present invention.
The primary coil winding that Fig. 3 is the present invention looks up principle schematic diagram.
Fig. 4 is Fig. 3 B-B sectional views.
Fig. 5 is the plan structure principle schematic of the primary coil winding of the present invention.
Fig. 6 is the stereochemical structure principle schematic of the primary coil winding of the present invention.
Marginal data：
1st, upper mounted plate；11st, the first hole slot；12nd, the second hole slot；2nd, bottom plate；3rd, core assembly；31st, E-type magnetic core；4th, it is former
Side coil windings；5th, secondary coil winding；6th, side fixed plate；7th, fixing bolt；8th, insulation board.
Embodiment
The present invention is described in further detail below in conjunction with specific embodiments and the drawings.
As shown in Figures 1 to 6, the present invention provides a kind of high frequency height insulation pressure-resistant isolating transformer, including the He of upper mounted plate 1
Bottom plate 2, is fixed between upper mounted plate 1 and bottom plate 2 and is arranged with two or more on core assembly 3, core assembly 3 and is in
Spaced apart primary coil winding 4 and secondary coil winding 5 successively（As shown in Fig. 2 the present embodiment one has three primary side lines
Winding 4 and three secondary coil windings 5 are enclosed, in arranged for interval successively）, each primary coil winding 4 or secondary coil winding 5 are equal
By single line cable formed in plane coiling above and below two layers, during coiling cable elder generation ecto-entad be set around in plane on core assembly 3
It is in plane winding from inside to outside after formation lower floor, again spiral to last layer so that primary coil winding 4 or secondary coil winding 5
Cable end of incoming cables and leading-out terminal are drawn by the outside of winding.During single winding technique as shown in Figures 3 to 6：Fig. 3, Fig. 6 arrow
C directions are inlet wire direction, the winding lower floor shown in Fig. 3 are formed after winding, Fig. 5, Fig. 6 arrow D directions are final outlet direction,
The winding upper strata shown in Fig. 5 is formed after winding.Special scientific design, has the following advantages that more than：
One is the pressure-resistant isolating transformer of high frequency height insulation of the present invention, by special structure design coordinate it is special in plane around
If coil windings, the space of winding outlet is reduced so that transformer compact overall structure, small volume, lightweight, radiating effect
It is good, it is particularly suitable for use in small space mounting and the application of rail traffic vehicles.Two be the pressure-resistant isolation change of high frequency height insulation of the present invention
Depressor, primary coil winding 4 and secondary coil winding 5 spaced apart form successively, are enhanced between former secondary coil winding
Coupling, reduce the leakage inductance of transformer, more meet high pressure, high frequency, the need of work of high-power isolating transformer.
The transformer of the present embodiment is provided with integral protection layer for protecting transformer, and integral protection layer is by transformation
Device forms impregnating varnish layer after carrying out vacuum paint dipping, then applies leaching underwater paint again on impregnating varnish layer.So that the transformer of the present invention is whole
Body protection effect is good, and degree of protection can reach IP54.Special scientific design, has the following advantages that more than：One is due to
Degree of protection can reach IP54, and winding, the magnetic core of transformer no longer need embedding to ensure its degree of protection, then coordinate above-mentioned spy
Different structure type so that transformer can directly cool down transformer using air-cooled form, cold compared to embedding mode
But, cooling wind directly can directly blow away the caloric value of winding, magnetic core（If with the heat-conducting glue of embedding mode, line bag will first lead to
Cross heat-conducting glue and pass to metal shell, wind, which goes to blow metal shell again, takes away heat, and radiating effect is low）So that radiating effect is more
It is good, extremely meet the radiating requirements of the pressure-resistant isolating transformer of high frequency height insulation.Two be under the cooperation of said structure, to eliminate filling
Sealing, metal shell, further mitigate the overall weight of transformer, further such that transformer compact overall structure, volume
It is small.
As shown in Fig. 2 further, in the preferred embodiment, core assembly 3 includes two relative E-type magnetics for closing up setting
Core 31, primary coil winding 4 or secondary coil winding 5 are set around on the center pillar of E-type magnetic core 31 and between the lateral column of both sides
Leave clearance for insulation.On the center pillar of E-type magnetic core 31 from the inside to the outside successively after coiling multilayer insulation adhesive tape and poly- fragrant paper, further around setting
Every cable of primary coil winding 4 or secondary coil winding 5, primary coil winding 4 or secondary coil winding 5 is by many profits
Hereby line is stranded forms, it is stranded after many litz wires provided with protection outer layer, protection outer layer successively by high temperature high voltage resistant adhesive tape and
Glass cloth formed after parcel winding so that isolating transformer height insulation of the invention is pressure-resistant.It is produced as follows：First will be single
The individual center pillar of E-type magnetic core 31 carries out multi-lay winding with insulating tape, then with poly- fragrant paper winding sizing center pillar, constitutes center pillar skeleton；
Then the winding made is placed according to primary side, secondary, primary side, secondary, primary side, the order of secondary are secondary successively again.Again will be another
An outer E-type magnetic core 31 is relative with the E-type magnetic core 31 for placing winding to close up setting, is combined into complete double EE types magnetic.
As shown in Figure 1 and Figure 2, further, in the preferred embodiment, two symmetrically arranged are offered on upper mounted plate 1
One hole slot 11 and the second hole slot 12, the cable end of incoming cables of primary coil winding 4 and leading-out terminal are stretched upwards at the first hole slot 11
Go out, the cable end of incoming cables of secondary coil winding 5 and leading-out terminal are protruded upward at the second hole slot 12.So that the big work(of the present invention
Convenient install of rate isolating transformer is safeguarded.
As shown in Figure 1 and Figure 2, further, in the preferred embodiment, many are provided between upper mounted plate 1 and bottom plate 2
The fixing bolt 7 of setting so that both to be fixed, be further fixed between upper mounted plate 1 and bottom plate 2 two pieces in pair
Claim the side fixed plate 6 set, two pieces of side fixed plates 6 respectively close to being fixed at the outer wall of the both sides lateral column of E-type magnetic core 31, with
In to the formation side shield of core assembly 3.Multiple ventilating heat dissipating holes are offered in every piece of side fixed plate 6 so that ensured
On the premise of protection effect, additionally it is possible to coordinate the wind-cooling heat dissipating for carrying out excellent.
As shown in Fig. 2 further, in the preferred embodiment, on the bottom surface of upper mounted plate 1 and the top surface of bottom plate 2
Depressed part is offered, core assembly 3 and side fixed plate 6, which block to set, to be fixed in depressed part.Further such that the present invention
The pressure-resistant isolating transformer compact conformation of high frequency height insulation, steadiness are good.It is all provided with the depressed part of upper mounted plate 1 and bottom plate 2
There is insulation board 8, for making to form insulating barrier between upper mounted plate 1, bottom plate 2 and core assembly 3., first will be around during making
The core assembly 3 for making winding is fastened in the depressed part of bottom plate 2, and dispensing is fixed.It is simultaneously that side fixed plate 6 is equal
In the depressed part for inserting bottom plate 2, then cover upper mounted plate 1 and dispensing is fixed, then locked admittedly with many fixing bolts 7
It is fixed, it is easy to make quick.
It the above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
For those of ordinary skill, some improvements and modifications without departing from the principles of the present invention should be regarded as the protection of the present invention
Scope.
Claims (10)
1. the pressure-resistant isolating transformer of a kind of high frequency height insulation, it is characterised in that including upper mounted plate（1）And bottom plate（2）, institute
State upper mounted plate（1）And bottom plate（2）Between be fixed with core assembly（3）, the core assembly（3）On be arranged with two with
Above in spaced apart primary coil winding successively（4）With secondary coil winding（5）, each primary coil winding（4）Or
Secondary coil winding（5）By single line cable in two layers above and below plane coiling formation, the first ecto-entad of the cable is in during coiling
Plane is set around core assembly（3）From inside to outside in plane winding so that primary side line after upper formation lower floor, again spiral to last layer
Enclose winding（4）Or secondary coil winding（5）Cable end of incoming cables and leading-out terminal drawn by the outside of winding.
2. the pressure-resistant isolating transformer of high frequency height insulation according to claim 1, it is characterised in that the core assembly（3）
Including two relative E-type magnetic cores for closing up setting（31）, the primary coil winding（4）Or secondary coil winding（5）Equal winding
In E-type magnetic core（31）Center pillar on and leave between the lateral column of both sides clearance for insulation.
3. the pressure-resistant isolating transformer of high frequency height insulation according to claim 2, it is characterised in that the E-type magnetic core（31）
Center pillar on from the inside to the outside successively after coiling multilayer insulation adhesive tape and poly- fragrant paper, further around setting primary coil winding（4）Or secondary
Coil windings（5）.
4. the pressure-resistant isolating transformer of high frequency according to claim 1 height insulation, it is characterised in that the every cable by
Many litz wires it is stranded formed, it is stranded after many litz wires provided with protection outer layer, the protection outer layer is successively by high temperature resistant
High-pressure glue band and glass cloth formed after parcel winding.
5. the pressure-resistant isolating transformer of high frequency height insulation according to claim 1, it is characterised in that fixed plate（1）
On offer two symmetrically arranged first hole slots（11）With the second hole slot（12）, the primary coil winding（4）Cable enter
Line end and leading-out terminal are from the first hole slot（11）Place is protruded upward, the secondary coil winding（5）Cable end of incoming cables and outlet
End is from the second hole slot（12）Place is protruded upward.
6. the pressure-resistant isolating transformer of high frequency height insulation according to claim 2, it is characterised in that fixed plate（1）
And bottom plate（2）Between provided with many setting fixing bolts（7）So that both to be fixed, fixed plate
（1）And bottom plate（2）Between be further fixed on the two pieces of side being symmetrical set fixed plates（6）, two pieces of side fixed plates
（6）Respectively close to E-type magnetic core（31）Fixed at the outer wall of both sides lateral column, for core assembly（3）Form side shield.
7. the pressure-resistant isolating transformer of high frequency height insulation according to claim 6, it is characterised in that every piece of side is fixed
Plate（6）On offer multiple ventilating heat dissipating holes.
8. the pressure-resistant isolating transformer of high frequency height insulation according to claim 6, it is characterised in that fixed plate（1）
Bottom surface and bottom plate（2）Top surface on offered depressed part, the core assembly（3）With side fixed plate（6）
Card, which is set, to be fixed in depressed part.
9. the pressure-resistant isolating transformer of high frequency height insulation according to claim 8, it is characterised in that fixed plate（1）
And bottom plate（2）Depressed part in be equipped with insulation board（8）, for making upper mounted plate（1）, bottom plate（2）With magnetic core
Component（3）Between form insulating barrier.
10. the pressure-resistant isolating transformer of high frequency height insulation as claimed in any of claims 1 to 9, it is characterised in that institute
Transformer is stated provided with integral protection layer for protecting transformer, the integral protection layer carries out Vaccum Permeating by transformer
Formd after paint and apply leaching underwater paint again on impregnating varnish layer, the impregnating varnish layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710316642.6A CN107275042A (en) | 2017-05-08 | 2017-05-08 | A kind of pressure-resistant isolating transformer of high frequency height insulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710316642.6A CN107275042A (en) | 2017-05-08 | 2017-05-08 | A kind of pressure-resistant isolating transformer of high frequency height insulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107275042A true CN107275042A (en) | 2017-10-20 |
Family
ID=60073738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710316642.6A Pending CN107275042A (en) | 2017-05-08 | 2017-05-08 | A kind of pressure-resistant isolating transformer of high frequency height insulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107275042A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115482991A (en) * | 2021-05-31 | 2022-12-16 | 襄阳中车电机技术有限公司 | Integrated medium-high frequency transformer |
| GB2618373A (en) * | 2022-05-05 | 2023-11-08 | Murata Manufacturing Co | Hybrid construction transformer |
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| JP2003188030A (en) * | 2001-12-18 | 2003-07-04 | Denso Corp | Vehicular step-down transformer using molding coil |
| CN201717026U (en) * | 2010-05-18 | 2011-01-19 | 浙江长城电工科技有限公司 | Stranded three-layer insulated wire |
| CN202996559U (en) * | 2012-02-23 | 2013-06-12 | 丁明 | Large-power high-frequency high-pressure switch transformer |
| CN203377075U (en) * | 2013-07-16 | 2014-01-01 | 河南恩耐基电气有限公司 | Three-phase iron-silicone-aluminum magnetic core harmonic wave electric reactor |
| CN204315361U (en) * | 2015-01-14 | 2015-05-06 | 南京新康达磁业股份有限公司 | A kind of transformer or inductor winding structure |
| CN105140007A (en) * | 2015-10-13 | 2015-12-09 | 东莞市昱懋纳米科技有限公司 | Power transformer |
-
2017
- 2017-05-08 CN CN201710316642.6A patent/CN107275042A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003188030A (en) * | 2001-12-18 | 2003-07-04 | Denso Corp | Vehicular step-down transformer using molding coil |
| CN201717026U (en) * | 2010-05-18 | 2011-01-19 | 浙江长城电工科技有限公司 | Stranded three-layer insulated wire |
| CN202996559U (en) * | 2012-02-23 | 2013-06-12 | 丁明 | Large-power high-frequency high-pressure switch transformer |
| CN203377075U (en) * | 2013-07-16 | 2014-01-01 | 河南恩耐基电气有限公司 | Three-phase iron-silicone-aluminum magnetic core harmonic wave electric reactor |
| CN204315361U (en) * | 2015-01-14 | 2015-05-06 | 南京新康达磁业股份有限公司 | A kind of transformer or inductor winding structure |
| CN105140007A (en) * | 2015-10-13 | 2015-12-09 | 东莞市昱懋纳米科技有限公司 | Power transformer |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115482991A (en) * | 2021-05-31 | 2022-12-16 | 襄阳中车电机技术有限公司 | Integrated medium-high frequency transformer |
| CN115482991B (en) * | 2021-05-31 | 2023-06-27 | 襄阳中车电机技术有限公司 | Integrated medium-high frequency transformer |
| GB2618373A (en) * | 2022-05-05 | 2023-11-08 | Murata Manufacturing Co | Hybrid construction transformer |
| WO2023214141A1 (en) * | 2022-05-05 | 2023-11-09 | Murata Manufacturing Co., Ltd | Hybrid construction transformer |
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Application publication date: 20171020 |
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| RJ01 | Rejection of invention patent application after publication |