CN105978361B - Efficient plane transformer switch power supply - Google Patents

Efficient plane transformer switch power supply Download PDF

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Publication number
CN105978361B
CN105978361B CN201610463566.7A CN201610463566A CN105978361B CN 105978361 B CN105978361 B CN 105978361B CN 201610463566 A CN201610463566 A CN 201610463566A CN 105978361 B CN105978361 B CN 105978361B
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CN
China
Prior art keywords
power supply
transformer
receiving terminal
excitation
flat
Prior art date
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Application number
CN201610463566.7A
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Chinese (zh)
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CN105978361A (en
Inventor
王万年
唐慧
王天甜
唐洪珍
李勇
石兆蚌
张兴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Yinhan Mechanical and Electrical Technology Co., Ltd.
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ANHUI KEDA AUTOMATION GROUP Co Ltd
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Priority to CN201610463566.7A priority Critical patent/CN105978361B/en
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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/003Constructional details, e.g. physical layout, assembly, wiring or busbar connections
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/2804Printed windings
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00Conversion of dc power input into dc power output
    • H02M3/22Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/2804Printed windings
    • H01F2027/2819Planar transformers with printed windings, e.g. surrounded by two cores and to be mounted on printed circuit

Abstract

A kind of efficient plane transformer switch power supply; including a Switching Power Supply ontology; the Switching Power Supply ontology is divided into excitation end and receiving terminal; the excitation end and receiving terminal are connected by flat surface transformer; and it closes inside the shell; excitation end is connected with input lead; receiving terminal is connected with output lead; positioning link is also associated between the excitation end and receiving terminal; the effect of the positioning link is overtemperature prote and connection, positioning; it can be flicked to 105 degree of Curie points, the safety of protection power source.The electric vehicle that gas station can be used in charges.

Description

Efficient plane transformer switch power supply
Technical field
The present invention relates to switch power technology fields, and in particular to a kind of for the efficiently flat of industrial production automatic control equipment power supply Face transformer switch power supply.
Background technology
The power supply efficiency of power supply is always pursuing a goal for Power Management Design, and the power supply efficiency of general linear power supply only has 30%~40%, general transformer switch power supply also only has 70%~80%, and many electric energy in this way become thermal energy for no reason Consumption.Flat surface transformer is a kind of new technology developed in recent years, its successful development, makes the volume of power transformer It greatly reduces, is particularly highly effectively reduced, be the primary leap of transformer technology.Compared with conventional transformer, in addition to Other than volume advantage, flat surface transformer also has the advantages of many other uniquenesses, as leakage inductance is small, loss is low, frequency is high, convenient for scattered Heat, consistency are good etc., therefore are widely applied.
The characteristics of flat surface transformer:
(1) electric current distribution is impartial
The line chart that typical flat surface transformer vice-side winding has several in parallel.Each vice-side winding and same primary side Winding is coupled.So the number of ampere turns that secondary current generates is equal with the number of ampere turns that primary side winding generates (ignoring exciting current). This characteristic is particularly useful to shunt rectifier circuit.Winding current distribution is impartial, is not just influenced in shunt rectifier circuit other Element.
(2) very high current density
Flat surface transformer has good temperature characteristic to design.Because of these characteristics, it can be in the encapsulation volume of very little Inside reach very high current density, can reach 20A/mm2.
(3) high efficiency density
Because flat surface transformer element is small-sized, it have good temperature dissipation characteristic, so can and it is related Semiconductor devices and inductance are densely packed together, and the current density of realization reaches 30A/ modules.
(4) high efficiency
Low drain inductance is enabled it to switch time quickly, very low crossover loss, with regard to the effect that it can be made to reach very high Rate.This transformer secondary winding and primary side winding loss are very littles.
(5) low leakage inductance
Good coupling between winding and winding keeps minimum value with regard to the leakage inductance that can make winding inter-turn.Output terminal is to auxiliary It helps the line of component very short and is tight fit, so the leakage inductance on winding is also minimum.
(6) good high frequency characteristics
Before this, it can increase when transformer station high-voltage side bus is in high frequency switching loss and overheat transformer.Plane transformation The appearance of device is addressed these problems.Flat surface transformer can accomplish to provide a kind of not only saved but also good transformer module.It can It is operated between 150kHz~750kHz.
(7) good heat dissipation characteristics
Flat surface transformer has high area-volume ratio, and the small element of the very short passage of heat is conducive to radiate.Primary side and pair Turn-to-turn loss very little between the winding of side.This magnetic core can efficiently reduce core loss, so it can accomplish high magnetic flux density. It can -40 DEG C~~130 DEG C between work.
(8) dielectric strength is high
Flat surface transformer is easy to the insulation number of plies as required, thickness insulate.It can be by client to leakage inductance distance It is required that carry out dielectric insulation.
(9) it is simple in structure
Flat surface transformer is made of a small amount of component and minimum winding, and this module is especially suitable in Automated assembly With.
(10) shape is low
Magnetic core used in flat surface transformer is very little, and can be arranged on the surface of tablet.Outside each magnetic core unit Shape is in the range of 3mm~32mm.
(11) it is inexpensive
Entire transformer is made of a small amount of related cheap component, in addition assembling is again very convenient, so transformer into Originally it is very low.
Flat surface transformer has very big advantage in reduction leakage inductance, AC impedance etc., and because of the small of volume Ingeniously make a kind of extraordinary magnetic element.The method for giving a kind of design plane transformer of standard so that design Flat surface transformer becomes to be more prone to, and cost will also substantially reduce.It is contemplated that flat surface transformer will have fairly good application Prospect.
There are many different concrete methods of realizing in flat surface transformer at present, application it is wider mainly there is matrix form to put down Face transformer, foil flat surface transformer, printed board flat surface transformer etc..Wherein printed board flat surface transformer again there are two types of, it is a kind of It is to be realized using monolithic multi-layer board;Another kind is realized using polylith dual platen.The latter's integrated level is slightly worse, but at low cost, Application range is wider.
Invention content
The technical problems to be solved by the invention are to provide a kind of small product size compact, light-weight, the operation is stable, efficiency High efficient plane transformer switch power supply.
A kind of efficient plane transformer switch power supply, including a Switching Power Supply ontology, the Switching Power Supply ontology is divided into sharp End and receiving terminal are encouraged, the excitation end and receiving terminal are connected by flat surface transformer, and are closed inside the shell, and excitation end is connected with Input lead, receiving terminal are connected with output lead, are also associated with positioning link between the excitation end and receiving terminal, the positioning The effect of connector is overtemperature prote and connection, positioning, can be flicked to 105 degree of Curie points, the peace of protection power source Entirely.The electric vehicle that gas station can be used in charges.
The positioning link includes the fastening shell for being set to excitation end and the ingot iron for being arranged on receiving terminal, described tight Gu being provided with stem in shell, the stem front end sleeve is equipped with retractable guard, is located in stem front end on retractable guard and is connected with magnetic Iron, the ingot iron for same receiving terminal is attracting, is located on stem in the retractable guard rear sleeve and is arranged with spring;Usually work When making normal, magnet is attracting with ingot iron, and holding excitation end connects with receiving terminal, and when temperature over-range, spring retraction is drawn Dynamic retractable guard, magnet and ingot iron are pulled open.
Circuit module in the excitation end includes power input filtering, current foldback circuit, single-phase bridge rectification filtering Circuit, semibridge system primary structure and PWM controller, the circuit module in the receiving terminal include secondary commutation filter circuit and electricity Collector is pressed, the semibridge system primary structure connects through flat surface transformer with secondary commutation filter circuit, the voltage collector Connect with PWM controller signal;
Each layer of PCB versions of the flat surface transformer is ranked sequentially with first left and then right, first up and then down.
The present invention is operated in high frequency environment using flat surface transformer using close coupled system minimizes its power supply designed, High power is possibly realized.It can be utmostly using the close coupled system of multilayer printed circuit board technique using the coil of transformer It improves the efficiency of power supply and the dielectric material of printed circuit board is very good for the dielectric constant of FR4, secondly with printed circuit board work Skill is highly developed therefore the consistency of the product is very good facilitates survey to adjust.
The beneficial effects of the invention are as follows:
1. small product size is compact, light-weight, 40% is reduced than traditional transformer power supply weight.
2. circuit structure is simple;
3. stable efficient operation can be realized, energy conversion efficiency reaches 95%, and traditional transformer Switching Power Supply is imitated Rate only has 70%~80%.
Description of the drawings
Fig. 1 is shape assumption diagram of the present invention;
Fig. 2 is internal structure chart of the present invention;
Fig. 3 is part A amplification assumption diagrams in Fig. 2;
Fig. 4 is principle of the invention block diagram.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below Conjunction is specifically illustrating, and the present invention is further explained.
Referring to Fig. 1, Fig. 2:A kind of efficient plane transformer switch power supply, including a Switching Power Supply ontology 10, the switch Power supply body 10 is divided to encourage end 101 and receiving terminal 102, and the excitation end 101 and receiving terminal 102 pass through 20 phase of flat surface transformer It connecing, and closes off inside the shell, excitation end 101 is connected with input lead 103, and receiving terminal 102 is connected with output lead 104, Positioning link 30 is also associated between the excitation end 101 and receiving terminal 102, the effect of the positioning link is overtemperature prote With connection, positioning, can be flicked to 105 degree of Curie points, the safety of protection power source.
Referring to Fig. 3:The positioning link 30 includes being set to the fastening shell 301 at excitation end 101 and is arranged on receiving terminal 102 ingot iron 302, described fasten are provided with stem 303 in shell 301,303 front end sleeve of stem is equipped with retractable guard 304, it is located in 303 front end of stem on retractable guard 304 and is connected with magnet 305, for the ingot iron 302 of same receiving terminal 102 It is attracting, it is located on stem 301 at 304 rear portion of retractable guard and is arranged with spring 306;When usually working properly, magnet 305 with Ingot iron 302 is attracting, and holding excitation end 101 connects with receiving terminal 102, and when temperature over-range, spring 306 bounces back, and pulls Retractable guard 304 pulls open magnet 305 and ingot iron 302.
Referring to Fig. 4:Circuit module in the excitation end includes power input filtering, current foldback circuit, single-phase bridge Current rectifying and wave filtering circuit, semibridge system primary structure and PWM controller, the circuit module in the receiving terminal include secondary commutation filtering Circuit and voltage collector, the semibridge system primary structure connect through flat surface transformer with secondary commutation filter circuit, the electricity Pressure collector connects with PWM controller signal;Each layer of PCB versions of the flat surface transformer is with first left and then right, first up and then down sequence Arrangement.
The basic principles, main features and the advantages of the invention have been shown and described above.The technology of the industry Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its Equivalent thereof.

Claims (2)

1. a kind of efficient plane transformer switch power supply, including a Switching Power Supply ontology, the Switching Power Supply ontology is divided into excitation End and receiving terminal, the excitation end and receiving terminal are connected by flat surface transformer, and the excitation end is connected with input lead, described Receiving terminal is connected with output lead, which is characterized in that is also associated with positioning link between the excitation end and receiving terminal;It is described Positioning link includes the fastening shell for being set to excitation end and the ingot iron for being arranged on receiving terminal, is provided in the fastening shell Stem, the stem front end sleeve are equipped with retractable guard, are located in stem front end on retractable guard and are connected with magnet, described flexible Sheath rear portion, which is located on stem, is arranged with spring.
2. efficient plane transformer switch power supply according to claim 1, which is characterized in that the excitation end and receiving terminal It closes off inside the shell.
CN201610463566.7A 2016-06-23 2016-06-23 Efficient plane transformer switch power supply Active CN105978361B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610463566.7A CN105978361B (en) 2016-06-23 2016-06-23 Efficient plane transformer switch power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610463566.7A CN105978361B (en) 2016-06-23 2016-06-23 Efficient plane transformer switch power supply

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CN105978361A CN105978361A (en) 2016-09-28
CN105978361B true CN105978361B (en) 2018-07-06

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101728130A (en) * 2008-10-16 2010-06-09 西门子公司 Releasing device of electric installation equipment and electric installation equipment having the releasing device
CN202134461U (en) * 2011-07-05 2012-02-01 佛山市川东热敏磁电有限公司 Novel brake apparatus of magnetically sensitive temperature controller
CN204011275U (en) * 2014-08-07 2014-12-10 金陵科技学院 Temperature-sensitive socket based on heat sensitive ferrite
CN205725483U (en) * 2016-06-23 2016-11-23 上海珩通科技股份有限公司 Efficient plane transformer switch power supply

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9837198B2 (en) * 2012-05-15 2017-12-05 Delta Electronics, Inc. Electronic device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101728130A (en) * 2008-10-16 2010-06-09 西门子公司 Releasing device of electric installation equipment and electric installation equipment having the releasing device
CN202134461U (en) * 2011-07-05 2012-02-01 佛山市川东热敏磁电有限公司 Novel brake apparatus of magnetically sensitive temperature controller
CN204011275U (en) * 2014-08-07 2014-12-10 金陵科技学院 Temperature-sensitive socket based on heat sensitive ferrite
CN205725483U (en) * 2016-06-23 2016-11-23 上海珩通科技股份有限公司 Efficient plane transformer switch power supply

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PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
CB03 Change of inventor or designer information

Inventor after: Wang Wannian

Inventor after: Tang Hui

Inventor after: Wang Tiantian

Inventor after: Tang Hongzhen

Inventor after: Li Yong

Inventor after: Shi Zhaobang

Inventor after: Zhang Xing

Inventor before: Tang Hui

Inventor before: Wang Wannian

Inventor before: Wang Tiantian

Inventor before: Tang Hongzhen

TA01 Transfer of patent application right

Effective date of registration: 20170111

Address after: 233000 Bengbu high tech Development Zone, Anhui Province Road No. 588

Applicant after: Anhui Keda Automation Group Co., Ltd.

Address before: 200032 Shanghai City, Xuhui District Road No. 18 Building 1 room 722

Applicant before: Shanghai Heng Tong Polytron Technologies Inc

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20190717

Address after: 233010 No. 600 Xingwang Road, Bengbu High-tech Zone, Anhui Province

Patentee after: Anhui Yinhan Mechanical and Electrical Technology Co., Ltd.

Address before: 233000 Bengbu high tech Development Zone, Anhui Province Road No. 588

Patentee before: Anhui Keda Automation Group Co., Ltd.

TR01 Transfer of patent right