CN105225794A - A kind of three-phase and five-pole high frequency transformer with ventilation cooling structure - Google Patents
A kind of three-phase and five-pole high frequency transformer with ventilation cooling structure Download PDFInfo
- Publication number
- CN105225794A CN105225794A CN201510543614.9A CN201510543614A CN105225794A CN 105225794 A CN105225794 A CN 105225794A CN 201510543614 A CN201510543614 A CN 201510543614A CN 105225794 A CN105225794 A CN 105225794A
- Authority
- CN
- China
- Prior art keywords
- magnetic core
- winding
- phase
- side guide
- yoke
- 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.)
- Granted
Links
Landscapes
- Transformer Cooling (AREA)
Abstract
The invention provides a kind of three-phase and five-pole high frequency transformer with ventilation cooling structure, comprise: magnetic core, be around in the winding on magnetic core and fan, the Aided Machine structure for ventilating and cooling, described Aided Machine structure comprises upper and lower pressing plate, the cross-over block of side guide and support winding, wherein the upper and lower yoke of magnetic core is fixed in same plane by upper and lower pressing plate, the both sides return yoke of magnetic core is fixed by side guide, and magnetic core uprightly and is not offset; Gap heat-conducting glue between upper and lower pressing plate and magnetic core is filled, one deck heat-conducting glue is also laid in upper and lower pressing plate and side guide and magnetic core contact position, ensure good contact and by upper and lower yoke heat by heat transfer to upper and lower pressing plate and return yoke heat conduction to side guide.The present invention to three-phase core and return yoke ventilating and cooling simultaneously, and utilizes supplementary structure to strengthen cooling to upper and lower yoke, solves the heat dissipation problem that thermal source that planar structure three-phase non complete symmetry brings is different.
Description
Technical field
The present invention relates to a kind of Large Copacity high frequency transformer, particularly, relate to a kind of three-phase and five-pole high frequency transformer with ventilation cooling structure.
Background technology
Three-phase and five-pole transformer is generally applicable to disassembled Large Copacity Industrial Frequency Transformer, adopts line cake winding and silicon steel sheet magnetic core, horizontal fan ventilating and cooling.The non-crystaline amorphous metal magnetic core of high frequency transformer is the critical piece of magnetic circuit, winding is electric critical piece, the structure of magnetic core and winding, size have important impact to the performance of transformer, cost, magnetic core and winding are all thermals source, and under identical capacity, high frequency transformer size is more much smaller than traditional Industrial Frequency Transformer.Non-crystaline amorphous metal magnetic core performance is stressed impact greatly, therefore winding and magnetic core must be separated from each other, add Aided Machine and insulation system, and three-phase magnetic circuit non complete symmetry, winding exciting current is different, therefore there is the situation of three-phase non complete symmetry heating, high frequency transformer stray field be avoided to produce excess loss to metal structure annex, this makes ventilation cooling structure design become difficulty.
Through retrieval, Chinese utility model patent CN203659572U, disclose a kind of air blast cooling medium/high frequency transformer, this transformer comprises under casing, described under casing end face is provided with ventilation hole, side is provided with blower fan, in described under casing, corresponding fan outlet is provided with duct shield, described duct shield lower end is connected with fan outlet, upper end is connected with under casing end face, be provided with core assembly above described under casing, described core assembly comprises the magnetic core that in many group horizontal directions, uniform intervals is placed, and described core assembly is wound with primary coil and secondary winding.A kind of air blast cooling medium/high frequency transformer of this utility model, magnetic core class interval is arranged, air channel is formed in core assembly inside, improve the radiating condition of magnetic core, in under casing side, blower fan is set, by duct shield drainage make cooling air from bottom to top blow over whole voltage changing module, improve the operating efficiency of blower fan, and enhance the maintainability of blower fan.This utility model patent, for segmented magnetic core transformer bottom design air duct, is only suitable for the scheme that transformer weight is little, i.e. medium-high frequency electronic low voltage transformer.Large Copacity high voltage high frequency transformer for nearly one ton and above weight utilizes the bottom blowing mode of a multiple air duct of blower fan to be inappropriate.In order to the ventilation scheme ensureing aeration structure mechanical strength material requested weight this patent in high power density and lightweight application is also inappropriate.
Summary of the invention
For defect of the prior art, the object of this invention is to provide a kind of three-phase and five-pole high frequency transformer with ventilation cooling structure, this structure is to three-phase core and return yoke ventilating and cooling simultaneously, and utilize supplementary structure to strengthen cooling to upper and lower yoke, solve the heat dissipation problem that thermal source that planar structure three-phase non complete symmetry brings is different.
Object of the present invention is achieved through the following technical solutions:
A kind of three-phase and five-pole high frequency transformer with ventilation cooling structure, comprise: magnetic core, be around in the winding on magnetic core and fan, the Aided Machine structure for ventilating and cooling, described Aided Machine structure comprises the cross-over block of upper and lower pressing plate, side guide and support winding; Wherein the upper and lower yoke of magnetic core is fixed in same plane by upper and lower pressing plate, and the both sides return yoke of magnetic core is fixed by side guide, and magnetic core uprightly and is not offset; Upper and lower pressing plate and the gap heat-conducting glue between side guide and magnetic core are filled, one deck heat-conducting glue is also laid in upper and lower pressing plate and side guide and magnetic core contact position, ensure good contact and by upper and lower yoke heat by heat transfer to upper and lower pressing plate and return yoke heat conduction to side guide.
Preferably, described magnetic core, comprise two large two little totally four magnetic cores, two large magnetic cores are positioned at centre, the each little magnetic core in both sides, these four magnetic cores are arranged symmetrically with near plane symmetry plane of arrangement mutually, three stem stem suit windings in the middle of being formed, three-phase four-light five rod structure of upper and lower yoke and two return yoke formation closed magnetic circuits; Described winding comprises low pressure winding and high pressure winding, and wherein three-phase high-voltage winding construction is identical, three-phase low-voltage winding construction is identical, and every phase high pressure winding and low pressure winding are coaxially laid and comprised the stem stem of two adjacent window apertures.
Preferably, described winding and magnetic core are separated from each other, and winding is contacted with upper and lower pressing plate by cross-over block, and top board gravity and the support force to magnetic core are delivered to lower platen by side guide, supported the gravity of magnetic core and winding like this by Aided Machine structure respectively, avoid winding gravity to extrude magnetic core.Described Aided Machine structure is provided with bracing frame further, and this bracing frame lower bands wheel, bracing frame is arranged on Aided Machine structure.Overall weight is born by the bracing frame of lower bands wheel.
Preferably, middle three stem stem two side bottom blower fans are to up-draught, make stem stem and inside and outside winding obtain forced ventilation cooling, the return yoke stem stem side guide of outermost two windows is respectively dried obliquely with a blower fan, makes side guide, stem stem and outside winding obtain forced ventilation cooling.The wind path of each like this blower fan is relatively independent, and reliability is high, easy to maintenance.
Preferably, each phase high and low pressure winding of described transformer and comprise stem stem and have two symmetrical blower fans to up-draught, to ventilating and cooling inside place magnetic core stem stem, low pressure winding and high pressure winding.Outermost two wicket magnetic core stem stems are cooled, simultaneously to ventilating and cooling outside transformer high-voltage winding by a blower fan respectively.
Preferably, described outermost two Fans wind direction is that blower fan length, close to high pressure winding width, makes all to obtain effective cooling outside magnetic core and high pressure winding obliquely facing to magnetic core and high pressure winding.
Preferably, the heat that described magnetic core and winding produce all passes through bottom blower fan forced ventilation cooling, and top yoke is by Aided Machine structure conduction and exit flow heat convection, bottom yoke is by Aided Machine structure conduction and inlet air flow heat convection.
Preferably, each phase magnetic circuit non complete symmetry of described transformer, the ventilating and cooling mode three-phase also non complete symmetry of design.
Magnetic core of the present invention and winding need to bear gravity by Aided Machine and insulation system, hinder the cooling air duct of conventional dry transformer, improve cooling effect by increasing outside two Fans.
The present invention can as required, and high pressure winding automatically connects into single star and bears full voltage, or double star bears a half voltage; Winding all participates in power transmission, even if high pressure winding voltage changes because of external cabling, transmission capacity still can reach rated condition; Due to three-phase windings and magnetic core space non complete symmetry, the ventilating and cooling mode three-phase also non complete symmetry of transformer, to reach optimal ventilation cooling effect.
Compared with prior art, the present invention has following beneficial effect:
The first, for three-phase magnetic circuit non complete symmetry, solve the heat dissipation problem of magnetic core and winding non complete symmetry thermal source, particularly the problem of return yoke heat radiation difficulty, improves cooling effect.
The second, blower fan and air quantity are installed from bottom and are fully used, solve the high-frequency magnetic leakage field impact that horizontal ventilation brings, simplified structure and be convenient to safeguard.
3rd, Aided Machine structure not only secures magnetic core and winding effectively respectively, winding gravity is not applied on magnetic core, and Aided Machine structure provide heat conducting approach between magnetic core by filling and lay heat-conducting glue, is conducive to air outlet and air inlet heat convection.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:
Fig. 1 is the schematic appearance of one embodiment of the invention;
Fig. 2 is one embodiment of the invention three-phase and five-pole high frequency transformer and wind turbine layout structural representation;
In figure: 1-top board, 2-side guide, 3-winding (comprising high pressure winding 10 and low pressure winding 9), 4-blower fan, 5-lower platen, 6-cross-over block, 7-bracing frame, 8-return yoke, 9-low pressure winding, 10-high pressure winding, 11-core post, 12-upper magnet yoke, 13-lower yoke, 14-22 blower fan.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, some distortion and improvement can also be made.These all belong to protection scope of the present invention.
As shown in Figure 1, be one embodiment of the invention schematic appearance, in figure: 1-top board, 2-side guide, 3-winding, 4-blower fan, 5-lower platen, 6-cross-over block, 7-bracing frame;
Fig. 2 is three-phase and five-pole high frequency transformer and wind turbine layout structural representation, in figure: 8-return yoke, 9-low pressure winding, 10-high pressure winding, 11-core post, 12-upper magnet yoke, 13-lower yoke, 14-22 blower fan.
Concrete, a kind of three-phase and five-pole high frequency transformer with ventilation cooling structure, comprising: magnetic core, winding, Aided Machine structure and blower fan.
Described magnetic core, adopt the amorphous alloy material of high permeability, high saturated magnetic induction, low specific loss, middle two large magnetic cores, the each little magnetic core in both sides, four magnetic cores are arranged near plane symmetry mutually, three stem stem suit windings in the middle of being formed, three-phase four-light five rod structure of upper and lower yoke and two return yoke formation closed magnetic circuits; Three-phase high-voltage winding 10 structure is identical, three-phase low-voltage winding 9 structure is identical, and every phase high pressure and low pressure winding are coaxially laid (low pressure winding is near magnetic core), and comprises the core post 11 of two adjacent window apertures.
Described Aided Machine structure comprises top board 1, lower platen 5, side guide 2, supports the cross-over block 6 of winding and the bracing frame 7 of bottom, upper magnet yoke 12, the lower yoke 13 of magnetic core are fixed in same plane by top board 1, lower platen 5, both sides return yoke 8 is fixed by side guide 2, and magnetic core uprightly and is not offset.Side guide 2 and core gaps, top board 1, gap heat-conducting glue between lower platen 5 and magnetic core are filled, as epoxy resin heat-conducting glue, one deck heat-conducting glue is also laid in top board 1, lower platen 5 and side guide 2 and magnetic core contact position, both can ensure good contact, again can by upper lower yoke heat by heat transfer to top board 1, lower platen 5 and by return yoke 8 heat conduction to side guide 2.
Described winding 3, be separated from each other with magnetic core, winding 3 is contacted with top board 1, lower platen 5 by cross-over block 6, cross-over block 6 tightens together with top board 1, lower platen 5, part magnetic core weight is born by upper portion insulating cushion block 6, bottom cross-over block 6 does not contact with magnetic core, and top board 1 weight is delivered to lower platen 5 by side guide 2, and winding 3 weight is born by lower platen 5.The bracing frame 7 of overall weight lower bands wheel is born.
Described magnetic core, wherein three stem stem two side bottoms with blower fan 14-19 to up-draught, stem stem and inside and outside winding 3 is made to obtain forced ventilation cooling, return yoke 8 side guide 2 of outermost two windows is respectively dried obliquely with a blower fan 20,21, makes side guide 2, return yoke 8 and outside winding obtain forced ventilation cooling.The wind path of each like this blower fan is relatively independent, and reliability is high, easy to maintenance.
As a preferred implementation, low pressure winding 9 and high pressure winding 10 all adopt segmental structure, and wherein high pressure winding 10 changes connected mode as required, and cross section is round rectangle, save material and space.
The multistage coil of homophase high pressure winding 10 is divided into symmetrical two groups, and each coil in each group is connected along polarity to improve voltage.Often two groups of coils can along polarity series connection or Same Name of Ends parallel connection according to transmission voltage requirement mutually for high pressure winding 10.Two groups of high pressure windings 10 go between, and automatically can connect into single star as required and bear full voltage, or double star bears a half voltage in outside.Low pressure winding 9 is near magnetic core, and high pressure winding 10 coil is enclosed within low pressure winding 9 coil outer, separates between adjacent windings with insulation board; Above-mentioned coil lead is drawn after adding insulating ceramics pipe successively, and marks Same Name of Ends.
As a preferred implementation, top board 1, side guide 2, lower platen 5 adopt " several " font, upper magnet yoke 12, lower yoke 13 respectively with cross section be the top board 1 of " several " font, lower platen 5 is fixedly clamped at same plane, left and right two return yokes 8 clamp for " several " font side guide 2 with cross section respectively, and magnetic core is vertically arranged.Wherein, all pressing plate inner surfaces lay heat-conducting glue and make pressing plate and magnetic core intimate surface contact.Fill gaps heat-conducting glue between each pressing plate and magnetic core, as epoxy resin heat-conducting glue, make between magnetic core, magnetic core and top board 1, between lower platen 5, and between return yoke and side guide 2, good fixing, be conducive to the heat on magnetic core to be passed to by heat transfer on the pressing plate that contacts.
As a preferred implementation, in the present invention, magnetic core of transformer and winding need to bear gravity by Aided Machine and insulation system, hinder the cooling air duct of conventional dry transformer, improve cooling effect by increasing outside two Fans 20,21.Outermost two Fans 20,21 wind direction is that blower fan length, close to high pressure winding width, makes all to obtain effective cooling outside magnetic core and high pressure winding obliquely facing to magnetic core and high pressure winding.
Use eight blower fan 14-21 to transformer forced ventilation cooling, wherein every phase high-low pressure winding and magnetic core stem stem are by former and later two blower fans 14-19 upwards forced ventilation cooling.Because return yoke magnetic core temperature rise ratio is higher, so both sides respectively need by a blower fan 20,21, forced ventilation obliquely cools.Blower fan is fixed on lower platen 5, each phase winding and the forced ventilation of return yoke independence, improves reliability, is convenient to safeguard.
The heat that described magnetic core and winding produce all passes through bottom blower fan 14-19 forced ventilation cooling, and upper magnet yoke 12 is by Aided Machine structure conduction and exit flow heat convection, and lower yoke 13 is by Aided Machine structure conduction and inlet air flow heat convection.
Transformer of the present invention each phase magnetic circuit non complete symmetry, the ventilating and cooling mode three-phase also non complete symmetry of design.
To sum up, the present invention is directed to three-phase magnetic circuit non complete symmetry, solve the heat dissipation problem of magnetic core and winding non complete symmetry thermal source, improve cooling effect.Blower fan and air quantity are installed from bottom be fully used, solve the high-frequency magnetic leakage field impact that horizontal ventilation brings, simplified structure and be convenient to safeguard.Upper and lower yoke annex not only effectively secures magnetic core and winding but also provides heat conducting approach, is conducive to air outlet and air inlet heat convection.
Above specific embodiments of the invention are described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (10)
1. one kind has the three-phase and five-pole high frequency transformer of ventilation cooling structure, comprise: magnetic core, be around in the winding on magnetic core and the fan for ventilating and cooling, characterized by further comprising Aided Machine structure, described Aided Machine structure comprises the cross-over block of upper and lower pressing plate, side guide and support winding; Wherein the upper and lower yoke of magnetic core is fixed in same plane by upper and lower pressing plate, and the both sides return yoke of magnetic core is fixed by side guide, and magnetic core uprightly and is not offset; Upper and lower pressing plate and the gap heat-conducting glue between side guide and magnetic core are filled, one deck heat-conducting glue is also laid in upper and lower pressing plate and side guide and magnetic core contact position, ensure good contact and by upper and lower yoke heat by heat transfer to upper and lower pressing plate and return yoke heat conduction to side guide.
2. the three-phase and five-pole high frequency transformer with ventilation cooling structure according to claim 1, it is characterized in that, described magnetic core, comprise two large two little totally four magnetic cores, two large magnetic cores are positioned at centre, each little magnetic core in both sides, and these four magnetic cores are arranged symmetrically with near plane symmetry plane of arrangement mutually, three stem stem suit windings in the middle of being formed, three-phase four-light five rod structure of upper and lower yoke and two return yoke formation closed magnetic circuits; Described winding comprises low pressure winding and high pressure winding, and wherein three-phase high-voltage winding construction is identical, three-phase low-voltage winding construction is identical, and every phase high pressure winding and low pressure winding are coaxially laid and comprised the stem stem of two adjacent window apertures.
3. the three-phase and five-pole high frequency transformer with ventilation cooling structure according to claim 2, it is characterized in that, described winding, be separated from each other with magnetic core, winding is contacted with upper and lower pressing plate by cross-over block, top board gravity and be delivered to lower platen by side guide to the support force of magnetic core, is supported the gravity of magnetic core and winding respectively by Aided Machine structure, avoid winding gravity to extrude magnetic core.
4. the three-phase and five-pole high frequency transformer with ventilation cooling structure according to claim 1, is characterized in that, described Aided Machine structure is provided with bracing frame further, and this bracing frame lower bands wheel, bracing frame is arranged on Aided Machine structure.
5. the three-phase and five-pole high frequency transformer with ventilation cooling structure according to claim 1, it is characterized in that, three, described centre stem stem two side bottom blower fan is to up-draught, stem stem and inside and outside winding is made to obtain forced ventilation cooling, the return yoke side guide of outermost two windows is respectively dried obliquely with a blower fan, makes side guide, return yoke and outside winding obtain forced ventilation cooling.
6. the three-phase and five-pole high frequency transformer with ventilation cooling structure according to claim 5, it is characterized in that, each phase high pressure winding of described transformer, low pressure winding and comprise center pinch and have two symmetrical blower fans to up-draught, to ventilating and cooling inside place stem stem, low pressure winding and high pressure winding, outermost two wicket return yokes are cooled, simultaneously to ventilating and cooling outside transformer high-voltage winding by a blower fan respectively.
7. the three-phase and five-pole high frequency transformer with ventilation cooling structure according to claim 5, it is characterized in that, outermost two Fans wind direction is that blower fan length, close to high pressure winding width, makes all to obtain effective cooling outside magnetic core and high pressure winding obliquely facing to magnetic core and high pressure winding; Low pressure winding and high pressure winding all adopt segmental structure, and wherein high pressure winding cross-section is round rectangle.
8. the three-phase and five-pole high frequency transformer with ventilation cooling structure according to any one of claim 1-7, it is characterized in that, the heat that described magnetic core and winding produce all passes through bottom blower fan forced ventilation cooling, and upper magnet yoke is by Aided Machine structure conduction and exit flow heat convection, lower yoke is by Aided Machine structure conduction and inlet air flow heat convection.
9. the three-phase and five-pole high frequency transformer with ventilation cooling structure according to any one of claim 1-7, is characterized in that, described transformer each phase magnetic circuit non complete symmetry, ventilating and cooling mode three-phase also non complete symmetry.
10. the three-phase and five-pole high frequency transformer with ventilation cooling structure according to any one of claim 1-7, it is characterized in that, described upper and lower pressing plate, side guide cross section are " several " font, upper and lower yoke is fixed on same plane with the upper and lower platen clamp that cross section is " several " font respectively, two return yokes use cross section to be the clamping of " several " font side guide respectively, and magnetic core is vertically arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510543614.9A CN105225794B (en) | 2015-08-28 | 2015-08-28 | A kind of three-phase and five-pole high frequency transformer with ventilation cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510543614.9A CN105225794B (en) | 2015-08-28 | 2015-08-28 | A kind of three-phase and five-pole high frequency transformer with ventilation cooling structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105225794A true CN105225794A (en) | 2016-01-06 |
| CN105225794B CN105225794B (en) | 2018-05-22 |
Family
ID=54994687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510543614.9A Active CN105225794B (en) | 2015-08-28 | 2015-08-28 | A kind of three-phase and five-pole high frequency transformer with ventilation cooling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105225794B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108364762A (en) * | 2018-01-12 | 2018-08-03 | 苏州汇川技术有限公司 | Phase-shifting rectifier transformer |
| CN110310799A (en) * | 2019-07-19 | 2019-10-08 | 东莞市大忠电子有限公司 | A kind of integrated three-phase transformer structure of 5G |
| CN110310801A (en) * | 2019-07-19 | 2019-10-08 | 东莞市大忠电子有限公司 | A kind of integrated three-phase common mode inductance of 5G |
| CN111670481A (en) * | 2018-01-31 | 2020-09-15 | 西门子股份公司 | Electrical device having a pressure plate for clamping a magnetizable core |
| CN111899964A (en) * | 2020-08-03 | 2020-11-06 | 上海交通大学 | Multi-winding high-frequency transformer with solid insulation structure |
| CN111933410A (en) * | 2020-08-03 | 2020-11-13 | 上海交通大学 | Multi-module multi-winding high-frequency transformer assembly and system with ventilation cooling structure |
| US11258370B2 (en) | 2018-11-30 | 2022-02-22 | Teco-Westinghouse Motor Company | High frequency medium voltage drive system for high speed machine applications |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201478091U (en) * | 2009-08-13 | 2010-05-19 | 上海置信电气非晶有限公司 | Amorphous alloy 10 kV dry-type transformer for wind power generation |
| CN201611601U (en) * | 2010-02-05 | 2010-10-20 | 上海置信电气股份有限公司 | Amorphous alloy 10kV air-immersed transformer for solar electrical energy generation |
| CN101996755A (en) * | 2009-08-13 | 2011-03-30 | 上海置信电气非晶有限公司 | Amorphous alloy 10kV dry type transformer used for wind power generation |
| KR20140062361A (en) * | 2012-11-14 | 2014-05-23 | 현대중공업 주식회사 | Cast-resin transformer for improving cooling efficiency |
-
2015
- 2015-08-28 CN CN201510543614.9A patent/CN105225794B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201478091U (en) * | 2009-08-13 | 2010-05-19 | 上海置信电气非晶有限公司 | Amorphous alloy 10 kV dry-type transformer for wind power generation |
| CN101996755A (en) * | 2009-08-13 | 2011-03-30 | 上海置信电气非晶有限公司 | Amorphous alloy 10kV dry type transformer used for wind power generation |
| CN201611601U (en) * | 2010-02-05 | 2010-10-20 | 上海置信电气股份有限公司 | Amorphous alloy 10kV air-immersed transformer for solar electrical energy generation |
| KR20140062361A (en) * | 2012-11-14 | 2014-05-23 | 현대중공업 주식회사 | Cast-resin transformer for improving cooling efficiency |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108364762A (en) * | 2018-01-12 | 2018-08-03 | 苏州汇川技术有限公司 | Phase-shifting rectifier transformer |
| CN111670481A (en) * | 2018-01-31 | 2020-09-15 | 西门子股份公司 | Electrical device having a pressure plate for clamping a magnetizable core |
| CN111670481B (en) * | 2018-01-31 | 2023-08-04 | 西门子能源全球有限公司 | Electrical device with a clamping plate for clamping a magnetizable core |
| US11721471B2 (en) | 2018-01-31 | 2023-08-08 | Siemens Energy Global GmbH & Co. KG | Electric device with pressing plates for clamping a magnetizable core |
| US11258370B2 (en) | 2018-11-30 | 2022-02-22 | Teco-Westinghouse Motor Company | High frequency medium voltage drive system for high speed machine applications |
| CN110310799A (en) * | 2019-07-19 | 2019-10-08 | 东莞市大忠电子有限公司 | A kind of integrated three-phase transformer structure of 5G |
| CN110310801A (en) * | 2019-07-19 | 2019-10-08 | 东莞市大忠电子有限公司 | A kind of integrated three-phase common mode inductance of 5G |
| CN110310799B (en) * | 2019-07-19 | 2024-01-23 | 东莞市大忠电子有限公司 | 5G integrated three-phase transformer structure |
| CN111899964A (en) * | 2020-08-03 | 2020-11-06 | 上海交通大学 | Multi-winding high-frequency transformer with solid insulation structure |
| CN111933410A (en) * | 2020-08-03 | 2020-11-13 | 上海交通大学 | Multi-module multi-winding high-frequency transformer assembly and system with ventilation cooling structure |
| CN111899964B (en) * | 2020-08-03 | 2024-04-26 | 上海交通大学 | Multi-winding high-frequency transformer with solid insulation structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105225794B (en) | 2018-05-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105225794A (en) | A kind of three-phase and five-pole high frequency transformer with ventilation cooling structure | |
| CN101548348B (en) | Cooling system for a dry-type air-core reactor | |
| CN105529164B (en) | The adjustable opened hollow reactor of inductance | |
| CN201638633U (en) | Low-voltage high-current high frequency water-cooled transformer | |
| CN103348421B (en) | Cooling system for dry-type transformer | |
| CN108597762A (en) | Novel horizontal type dry power transformer | |
| CN105656289A (en) | Heat dissipation apparatus of reactor cabinet body | |
| CN202221695U (en) | Resin insulating dry type phase shifting rectifier transformer | |
| CN104538152A (en) | Oil type transformer and application thereof | |
| CN201060719Y (en) | Heat radiating structure for phase-shift commutation dry type transformer | |
| CN215680331U (en) | Transformer cooling mechanism | |
| CN101661828A (en) | Radiating device for dry-type transformer | |
| CN204651145U (en) | A kind of novel dry transformer | |
| CN208922844U (en) | A kind of miniature transformer of high efficiency and heat radiation | |
| CN109786072B (en) | Dry-type transformer | |
| CN208189349U (en) | A kind of novel horizontal type dry power transformer | |
| CN201274213Y (en) | Heat radiating device for dry transformer | |
| CN206489953U (en) | A kind of dry-type transformer | |
| CN207938427U (en) | A kind of dry-type transformer increasing heat dissipation effect | |
| CN112397274A (en) | Dry-type wound core transformer | |
| CN212230213U (en) | Novel winding structure of transformer | |
| CN204010966U (en) | One can realize online air cooled dry-type transformer | |
| CN216597251U (en) | Triangular iron core dry-type transformer | |
| CN220962995U (en) | Integrated low-surface heat radiation water-cooled transformer | |
| CN218918587U (en) | Low-energy-consumption transformer coil structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee after: GLOBAL ENERGY INTERCONNECTION RESEARCH INSTITUTE Co.,Ltd. Patentee after: STATE GRID CORPORATION OF CHINA Co-patentee after: SHANGHAI JIAO TONG University Co-patentee after: STATE GRID ZHEJIANG ELECTRIC POWER Co.,Ltd. Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee before: GLOBAL ENERGY INTERCONNECTION Research Institute Patentee before: STATE GRID CORPORATION OF CHINA Co-patentee before: SHANGHAI JIAO TONG University Co-patentee before: STATE GRID ZHEJIANG ELECTRIC POWER Co.,Ltd. Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee after: GLOBAL ENERGY INTERCONNECTION Research Institute Patentee after: STATE GRID CORPORATION OF CHINA Co-patentee after: SHANGHAI JIAO TONG University Co-patentee after: STATE GRID ZHEJIANG ELECTRIC POWER Co.,Ltd. Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee before: STATE GRID SMART GRID Research Institute Patentee before: State Grid Corporation of China Co-patentee before: SHANGHAI JIAO TONG University Co-patentee before: STATE GRID ZHEJIANG ELECTRIC POWER Co. |
|
| CP01 | Change in the name or title of a patent holder |