CN201689765U - Transformer - Google Patents

Transformer Download PDF

Info

Publication number
CN201689765U
CN201689765U CN2009202660797U CN200920266079U CN201689765U CN 201689765 U CN201689765 U CN 201689765U CN 2009202660797 U CN2009202660797 U CN 2009202660797U CN 200920266079 U CN200920266079 U CN 200920266079U CN 201689765 U CN201689765 U CN 201689765U
Authority
CN
China
Prior art keywords
coil
transformer
magnetic core
primary coil
magnetic
Prior art date
Application number
CN2009202660797U
Other languages
Chinese (zh)
Inventor
张文学
Original Assignee
北京动力源科技股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 北京动力源科技股份有限公司 filed Critical 北京动力源科技股份有限公司
Priority to CN2009202660797U priority Critical patent/CN201689765U/en
Application granted granted Critical
Publication of CN201689765U publication Critical patent/CN201689765U/en

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Abstract

The utility model provides a transformer, which can effectively solve the problem of radiation of the magnetic core and the coil and has the advantages of simple process, low power consumption, low price and high practical value. The transformer comprises two U-shaped magnetic cores, the two magnetic cores are arranged face to face so that the two cylinders of one U-shaped magnetic core can be butted with the two cylinders of the other U-shaped magnetic core, and the coil is wound on the butted cylinder; a secondary coil (or a primary coil) is wound outside a primary coil (or a secondary coil), and a shielding layer is arranged between the primary coil and the secondary coil and comprises a copper strip and an insulating film; the primary coil and the secondary coil also comprise a copper strip and an insulating film; the shielding layer is grounded when the transformer is used; and an epoxy resin plate with the thickness identical to the thickness of an air gap is adhered between the butted cylinders of the two U-shaped magnetic cores.

Description

A kind of transformer
Technical field
The utility model relates to the communication power supply field, relates in particular to the transformer of high frequency switch power.
Background technology
In the transformer of existing high frequency switch power, all be to constitute usually by EE or PQ type magnetic core and coil.(is example with EE type transformer) as shown in Figure 1, coil is wrapped on the magnetic core center pillar, the hottest point of magnetic core is positioned on the magnetic core center pillar, also have magnetic core to exist owing to surround the coil outside of magnetic core center pillar, make the heat on magnetic core center pillar and the coil be difficult to come out, the temperature of coil obtains fast rise like this; The magnetic core center pillar also continues to absorb heat from coil, causes magnetic core overheated, and magnetic core had just lost efficacy when the temperature of magnetic core reaches Curie temperature.In powerful components and parts, the heat dissipation problem of magnetic core and coil has become the key factor that influences transformer performance.
The utility model content
The utility model provides a kind of transformer, can effectively solve the heat dissipation problem of magnetic core and coil, and technology is simple, low in energy consumption, low price, has stronger practical value.
The utility model thes contents are as follows:
A kind of transformer that is used for high frequency switch power comprises: two U type magnetic cores are docking together two magnetic posts of a U type magnetic core and two magnetic posts of another U type magnetic core with aspectant direction, and coil is wrapped on the butt joint magnetic post.
Wherein secondary coil (or primary coil) is wrapped in the outside of primary coil (or secondary coil), and a screen is arranged between primary coil and the secondary coil; This screen is made of copper strips and dielectric film; Primary coil and secondary coil also are to be made of copper strips and dielectric film simultaneously; In the use of transformer, shielding layer grounding; Stick on docking between the magnetic post of two U type magnetic cores with air gap with thick epoxy sheet.
Description of drawings
Fig. 1 is the structure chart of EE type transformer;
Fig. 2 is the structure chart of the utility model transformer.
Specific embodiment
Below with reference to view the utility model is elaborated.As shown in Figure 2, transformer of the present utility model comprises two U type magnetic cores, an above coil.Coil is made up of primary coil, separator and secondary coil.This transformer is the formation magnetic core that is docking together of the magnetic post with two U type magnetic cores, and coil is wrapped on the magnetic post of butt joint.Wherein, primary coil, separator and secondary coil all are to add dielectric film by copper strips to constitute.Primary coil, separator and secondary coil also can all adopt the enamelled wire coiling to form simultaneously.Screen for the enamelled wire coiling has the slit unavoidably between circle and the circle, and makes trouble, and technological requirement is also than higher; And, consider approach effect for primary coil and secondary coil, and the loss of enamelled wire is bigger, if will reach the loss of adopting copper strips the time, technology can be complicated.Certainly require also can adopt enamelled wire under the not too harsh situation in efficient.
Transformer of the present utility model in use, screen needs ground connection, just can reduce the electric capacity between primary coil and the secondary coil, helps the common-mode noise that reduces to be coupled like this.
Can be in parallel between the primary coil of the utility model transformer or series connection use, also can be in parallel between the secondary coil and series connection use.In addition, stick on docking between the magnetic post of two U type magnetic cores with air gap with thick epoxy sheet.
In this transformer, coil is wrapped on the butt joint magnetic post, and the coil outside is not surrounded by magnetic core, make magnetic core and the coil can better distribute heat, help reducing the temperature of magnetic core and coil, improve the performance of transformer, and technology is simple, low in energy consumption, low price.
Above explanation just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, above content should not be construed as restriction of the present utility model.

Claims (5)

1. transformer, it is characterized in that: two U type magnetic cores are docking together two magnetic posts of a U type magnetic core and two magnetic posts of another U type magnetic core with aspectant direction, primary coil and secondary coil all are wrapped on the butt joint magnetic post, and one deck screen is arranged between primary coil and the secondary coil.
2. transformer according to claim 1, it is characterized in that: this screen is made of copper strips and dielectric film.
3. transformer according to claim 1 is characterized in that primary coil and secondary coil all are to be made of copper strips and dielectric film.
4. transformer according to claim 1 is characterized in that: in the use of transformer, and shielding layer grounding.
5. transformer according to claim 1 is characterized in that: stick on docking between the magnetic post of two U type magnetic cores with air gap with thick epoxy sheet.
CN2009202660797U 2009-11-04 2009-11-04 Transformer CN201689765U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009202660797U CN201689765U (en) 2009-11-04 2009-11-04 Transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009202660797U CN201689765U (en) 2009-11-04 2009-11-04 Transformer

Publications (1)

Publication Number Publication Date
CN201689765U true CN201689765U (en) 2010-12-29

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009202660797U CN201689765U (en) 2009-11-04 2009-11-04 Transformer

Country Status (1)

Country Link
CN (1) CN201689765U (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102611309A (en) * 2012-02-24 2012-07-25 山东齐林电科电力设备制造有限公司 High-insulation-voltage isolated power supply
CN103050227A (en) * 2012-12-20 2013-04-17 中国科学院电工研究所 High-frequency high-voltage transformer structure
CN103646756A (en) * 2013-12-18 2014-03-19 天津光电惠高电子有限公司 High-power-density switching power supply transformer and processing technology thereof
CN103680867A (en) * 2012-09-04 2014-03-26 振华电脑有限公司 Side-winding type winding transformer and winding method thereof
CN105185510A (en) * 2014-06-16 2015-12-23 胜美达集团株式会社 Coil component
CN106057401A (en) * 2015-04-10 2016-10-26 台达电子工业股份有限公司 Magnetic element and magnetic core thereof
CN107093513A (en) * 2017-06-23 2017-08-25 太仓市变压器有限公司 A kind of magnetic core of transformer component
CN109473265A (en) * 2018-10-15 2019-03-15 珠海市崧源电子企业有限公司 A kind of transformer and assemble method
US10763028B2 (en) 2015-04-10 2020-09-01 Delta Electronics, Inc. Magnetic component and magnetic core of the same

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102611309A (en) * 2012-02-24 2012-07-25 山东齐林电科电力设备制造有限公司 High-insulation-voltage isolated power supply
CN103680867A (en) * 2012-09-04 2014-03-26 振华电脑有限公司 Side-winding type winding transformer and winding method thereof
CN103050227A (en) * 2012-12-20 2013-04-17 中国科学院电工研究所 High-frequency high-voltage transformer structure
CN103646756A (en) * 2013-12-18 2014-03-19 天津光电惠高电子有限公司 High-power-density switching power supply transformer and processing technology thereof
CN105185510A (en) * 2014-06-16 2015-12-23 胜美达集团株式会社 Coil component
CN105185510B (en) * 2014-06-16 2017-06-30 胜美达集团株式会社 Coil component
CN106057401A (en) * 2015-04-10 2016-10-26 台达电子工业股份有限公司 Magnetic element and magnetic core thereof
CN106057401B (en) * 2015-04-10 2018-04-17 台达电子工业股份有限公司 Magnetic element and its magnetic core
US10763028B2 (en) 2015-04-10 2020-09-01 Delta Electronics, Inc. Magnetic component and magnetic core of the same
CN107093513A (en) * 2017-06-23 2017-08-25 太仓市变压器有限公司 A kind of magnetic core of transformer component
CN109473265A (en) * 2018-10-15 2019-03-15 珠海市崧源电子企业有限公司 A kind of transformer and assemble method
CN109473265B (en) * 2018-10-15 2021-03-19 珠海市崧源电子企业有限公司 Transformer and assembling method

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C14 Grant of patent or utility model
CX01 Expiry of patent term

Granted publication date: 20101229

CX01 Expiry of patent term