CN202102828U - High-frequency transformer - Google Patents
High-frequency transformer Download PDFInfo
- Publication number
- CN202102828U CN202102828U CN2011201851879U CN201120185187U CN202102828U CN 202102828 U CN202102828 U CN 202102828U CN 2011201851879 U CN2011201851879 U CN 2011201851879U CN 201120185187 U CN201120185187 U CN 201120185187U CN 202102828 U CN202102828 U CN 202102828U
- Authority
- CN
- China
- Prior art keywords
- coil
- base
- magnetic core
- core
- skeleton
- 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.)
- Expired - Lifetime
Links
Images
Abstract
A high-frequency transformer comprises a magnetic core, a skeleton and a coil and is characterized in that the skeleton comprises a base; the coil and the magnetic core are arranged on the base; an input end pin and an output end pin welded with a circuit board are arranged at the bottom of the base; an electromagnetic wire of a primary winding of the coil is arranged on the base and electrically connected with the input end pin; an electromagnetic wire of a secondary winding of the coil is arranged on the base and electrically connected with the output end pin; and the length of the base between the output end pin and the coil is at least equal to the safety creepage distance of the high-frequency transformer. The length of the skeleton at one side of the secondary winding of the coil is increased, the electromagnetic wires of the primary winding and the secondary winding of the coil are respectively embedded and fixed on the skeleton of the transformer, flexible electromagnetic wire heads are led out from the rigid structure pins, so that the transformer can be directly welded on the circuit board through the pins during installation, the installation is convenient, the installation efficiency is improved, and the disturbance to other electronic elements on the circuit board by the flexible electromagnetic wires can be prevented.
Description
Technical field
The utility model relates to a kind of transformer, particularly a kind of high-frequency output transformer.
Background technology
High frequency transformer is as the topmost part of Switching Power Supply; Usually; Switching Power Supply generally adopts the semibridge system circuit for power conversion; Two switch triodes take turns conducting and produce the high-frequency impulse ripple of 100kHz during work, carry out step-down through high frequency transformer then, the alternating current of output LOW voltage.
In the prior art; The primary input terminal of high frequency transformer and secondary output end are respectively arranged with the electromagnetism lead-out wire, these electromagnetism lead-in wire normally through manual welding to circuit board, when needs assemble in enormous quantities; Not only workload is big; Welding efficiency is lower, and the manual welding operation easier is big, occurs Welding Problems easily.For this reason; At present a lot of transformers are directly made stitch with the electromagnetism lead-in wire and are fixed on the skeleton; Can directly stitch be welded on the circuit board during assembling; Like the patent No. is that the Chinese utility model patent " a kind of high-frequency switch power transformer " of CN201020164344.3 discloses a kind of high-frequency switch power transformer; Comprise enamelled wire, be used for around enamelled wire magnetic core, with the lead-in wire that said enamelled wire electrically connects, said lead-in wire is the insulated wire with insulating outer layer, the outside of said lead-in wire is arranged with insulating sleeve respectively.
Be fixed on the skeleton and can conveniently install though the electromagnetism lead-in wire is made pin structure,, mostly present transformer framework is symmetrical structure; Be that distance between elementary input coil pin and the magnetic core equates with distance between secondary output winding pin and the magnetic core; And when actual installation, the output of transformer need satisfy certain safety creepage distance, and the skeleton of present this symmetrical structure can't satisfy the requirement of transformer at the output stage safety creepage distance; Therefore; Usually only the electromagnetism lead-in wire of input stage coil is made stitch in the prior art and be fixed on the skeleton, and the electromagnetism of output stage coil lead-in wire still can only manually weld, not only troublesome poeration; Welding efficiency is low; And because the electromagnetism lead-in wire after the welding can't be effectively fixing, easily and the electronic devices and components on the circuit board interfere, and then influence the performance of entire circuit plate.
The utility model content
The utility model technical problem to be solved is that a kind of safety creepage distance that can effectively guarantee output stage and integral installation high frequency transformer more easily is provided to above-mentioned prior art present situation.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of high frequency transformer; Include magnetic core, skeleton and coil; It is characterized in that: said skeleton includes a base; Said coil and magnetic core are arranged on this base; The bottom of said base is provided with the input stitch and the output stitch that can weld mutually with circuit board, and the elementary winding magnetic wire of said coil is arranged on the said base and with said input stitch and is electrically connected, and the secondary winding electromagnetic wire of said coil is arranged on the said base and with the output stitch and is electrically connected; And the base length between said output stitch and the said magnetic core equals the safety creepage distance of said high frequency transformer at least.
In order to improve the intensity of coil, make things convenient for the installation of coil and magnetic core, as preferably; Said skeleton also includes coil bone core; Said coil bone core offers through hole, and said coil winding is on this coil bone core, and said magnetic core is inserted in the through hole of said coil bone core.
For the ease of installation and removal; Be convenient to simultaneously the base of coil and skeleton is fixed in one; As preferably; Said magnetic core includes and can dock the last magnetic core and following magnetic core that amalgamation is a rectangle frame, and the said magnetic core of going up has the core bar in the through hole that can be inserted in said coil bone core, and the both sides of said base offer respectively and can block the draw-in groove of joining mutually with the said sidewall width of magnetic core down.
For fail safe and the reliability that guarantees to use; Prevent to disturb; As preferably; Be arranged with insulating sleeve respectively on said elementary winding magnetic wire and the secondary winding electromagnetic wire, offer on the said base and can supply to be arranged with the elementary winding magnetic wire of said insulating sleeve and the slit that the secondary winding electromagnetic wire embeds.
In order to satisfy the requirement of safety, further improve dependability and fail safe, as preferably, the periphery of said coil and magnetic core is coated with insulating tape respectively.
Compared with prior art, the advantage of the utility model is: change the symmetrical structure design of traditional skeleton, increased the length of the skeleton base that is positioned at coil secondary coil winding one side; The elementary winding magnetic wire of coil and secondary winding electromagnetic wire be embedded respectively be fixed on the transformer framework; And soft electromagnetic wire the end of a thread drawn through the stitch of hard structure, make transformer when mounted, can directly be welded on the circuit board through stitch; Not only made things convenient for installation; Improved installation effectiveness, and can prevent of the interference of soft electromagnetic wire, helped improving installation quality other electronic components on the circuit board.
Description of drawings
Fig. 1 is the perspective view of the utility model embodiment.
Fig. 2 is the user mode figure of the utility model embodiment.
Fig. 3 is a three-dimensional exploded view shown in Figure 2.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Like Fig. 1～shown in Figure 3, the transformer that present embodiment relates to is a kind of high frequency transformer, and this high frequency transformer includes magnetic core, skeleton 8 and coil 1; Wherein, Skeleton 8 includes coil bone core 2 and base 3, and coil 1 is arranged on the base 3 with magnetic core, and coil bone core 2 cross sections are T-shaped; And coil bone core 2 offers through hole 21 vertically, and coil 1 winding is on this coil bone core 2;
Magnetic core includes and can dock the last magnetic core 41 and following magnetic core 42 that amalgamation is a rectangle frame; Last magnetic core 41 cross sections are inverted " mountain " shape; The middle part that should go up magnetic core 41 has the core bar 411 in the through hole that can be inserted in coil bone core 2; The cross section of following magnetic core 42 is " U " shape; The both sides of base 3 offer respectively and can block the draw-in groove 31 of joining mutually with the width of the U-shaped sidewall of following magnetic core 42, and last magnetic core 41 forms a rectangle frame with following magnetic core 42 butt joint backs, is arranged with the coil bone core 2 of coil 1 and the base 3 of skeleton 8 and is contained in this rectangle frame;
The bottom of base 3 is provided with the input stitch 32 and output stitch 33 that can weld mutually with circuit board 7; The elementary winding magnetic wire 11 of coil 1 is electrically connected with input stitch 32; The secondary winding electromagnetic wire 12 of coil 1 is electrically connected with output stitch 33, and the distance of magnetic core between input stitch 32 and output stitch 33 is dissymmetrical structure, wherein; Base 3 length between output stitch 33 and the magnetic core equal the safety creepage distance of high frequency transformer at least; In practical application, according to the difference of wiring board design, the position of input stitch 32 can be arranged at the not homonymy of output stitch 33; Also can be arranged at the same side of output stitch 33, as being provided with the stitch of ancillary coil in the same side of output stitch 33;
In order to improve safety in utilization, also be arranged with insulating sleeve 5 respectively on elementary winding magnetic wire 11 and the secondary winding electromagnetic wire 12, offer on the base 3 and can supply to be arranged with the elementary winding magnetic wire 11 of insulating sleeve 5 and the slit 34 of secondary winding electromagnetic wire 12 embeddings;
In order further to improve safety in utilization, also be coated with the insulating tape that agate position adhesive tape 6 requires as safety respectively in the periphery of coil 1 and magnetic core.
Present embodiment is made the plug-in type pin structure with the electromagnetic wire of coil windings, and stitch is fixed on the base 3 of skeleton 8, makes transformer when mounted; Can directly stitch be welded on the circuit board 7; The welding assembling is easily simple more, has both saved installation time, has improved efficiency of assembling again; Because the output stitch 33 of the base 3 of skeleton 8 and the distance between the magnetic core are designed to the length that satisfies the output safety creepage distance; Not only satisfied the requirement of transformer safety; But also can the electromagnetic wire of coil 1 secondary winding be fixed on the base 3; Avoided of the interference of traditional electrical magnet-wire welding back, improved the reliability that circuit uses other electric elements on the circuit board 7.
Claims (5)
1. high frequency transformer; Include magnetic core, skeleton and coil; It is characterized in that: said skeleton includes a base, and said coil and magnetic core are arranged on this base, and the bottom of said base is provided with the input stitch and the output stitch that can weld mutually with circuit board; The elementary winding magnetic wire of said coil is arranged on the said base and with said input stitch and is electrically connected; The secondary winding electromagnetic wire of said coil is arranged on the said base and with the output stitch and is electrically connected, and the base length between said output stitch and the said magnetic core equals the safety creepage distance of said high frequency transformer at least.
2. high frequency transformer according to claim 1 is characterized in that: said skeleton also includes coil bone core, and said coil bone core offers through hole, and said coil winding is on this coil bone core, and said magnetic core is inserted in the through hole of said coil bone core.
3. high frequency transformer according to claim 2; It is characterized in that: said magnetic core includes and can dock the last magnetic core and following magnetic core that amalgamation is a rectangle frame; The said magnetic core of going up has the core bar in the through hole that can be inserted in said coil bone core, and the both sides of said base offer respectively and can block the draw-in groove of joining mutually with the said sidewall width of magnetic core down.
4. according to claim 1 or 2 or 3 described high frequency transformers; It is characterized in that: be arranged with insulating sleeve respectively on said elementary winding magnetic wire and the secondary winding electromagnetic wire, offer on the said base and can supply to be arranged with the elementary winding magnetic wire of said insulating sleeve and the slit that the secondary winding electromagnetic wire embeds.
5. high frequency transformer according to claim 5 is characterized in that: the periphery of said coil and magnetic core is coated with insulating tape respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201851879U CN202102828U (en) | 2011-05-31 | 2011-05-31 | High-frequency transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201851879U CN202102828U (en) | 2011-05-31 | 2011-05-31 | High-frequency transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202102828U true CN202102828U (en) | 2012-01-04 |
Family
ID=45388832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201851879U Expired - Lifetime CN202102828U (en) | 2011-05-31 | 2011-05-31 | High-frequency transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202102828U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102737820A (en) * | 2012-06-08 | 2012-10-17 | 海宁市杰诚电子元件厂 | I-shaped inductance framework |
| CN105140009A (en) * | 2015-09-09 | 2015-12-09 | 浙江矛牌电子科技有限公司 | High frequency switching power supply transformer |
| CN107734904A (en) * | 2017-11-06 | 2018-02-23 | 旭源电子（珠海）有限公司 | The fly line base and its manufacture method of a kind of constant voltage source |
| CN109285655A (en) * | 2018-11-07 | 2019-01-29 | 忠县南泰电子有限公司 | A kind of EE type high frequency transformer with high voltage and filtering property |
| CN109461562A (en) * | 2018-12-20 | 2019-03-12 | 赣州齐畅新材料有限公司 | A kind of water cooling rare earth magnetic core high frequency transformer |
-
2011
- 2011-05-31 CN CN2011201851879U patent/CN202102828U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102737820A (en) * | 2012-06-08 | 2012-10-17 | 海宁市杰诚电子元件厂 | I-shaped inductance framework |
| CN105140009A (en) * | 2015-09-09 | 2015-12-09 | 浙江矛牌电子科技有限公司 | High frequency switching power supply transformer |
| CN107734904A (en) * | 2017-11-06 | 2018-02-23 | 旭源电子（珠海）有限公司 | The fly line base and its manufacture method of a kind of constant voltage source |
| CN107734904B (en) * | 2017-11-06 | 2023-11-14 | 旭源电子（珠海）有限公司 | Flying lead base of constant-voltage power supply and manufacturing method thereof |
| CN109285655A (en) * | 2018-11-07 | 2019-01-29 | 忠县南泰电子有限公司 | A kind of EE type high frequency transformer with high voltage and filtering property |
| CN109285655B (en) * | 2018-11-07 | 2020-08-04 | 忠县南泰电子有限公司 | EE type high-frequency transformer |
| CN109461562A (en) * | 2018-12-20 | 2019-03-12 | 赣州齐畅新材料有限公司 | A kind of water cooling rare earth magnetic core high frequency transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10658101B2 (en) | Transformer and power supply device including the same | |
| CN108777220B (en) | Magnetic element and switching power supply device | |
| CN106998142B (en) | Controlled resonant converter, the inductance of multi-channel parallel integrate magnetic element and transformer integrates magnetic element | |
| CN202102828U (en) | High-frequency transformer | |
| US20120262895A1 (en) | Low-cost transformer assembly | |
| US20120049994A1 (en) | Inductor core for power factor correction circuit | |
| CN107221419B (en) | The skeleton and Switching Power Supply of switch transformer | |
| CN204578339U (en) | A kind of Switching Power Supply | |
| WO2016004745A1 (en) | Integrated copper bar for secondary-side power circuit of power electronic converter | |
| JP5598400B2 (en) | Spacers, coils, coil components, and switching power supplies | |
| CN103093940B (en) | Power transformer plug and assemble method thereof | |
| US9136054B1 (en) | Reduced leakage inductance transformer and winding methods | |
| JP5611170B2 (en) | Switching power supply | |
| CN104051143B (en) | There is the changer of planar primary winding | |
| CN202695100U (en) | Structure of main transformer consisting of multiple transformers in inverse power supply | |
| KR20160042560A (en) | Coil component and manufacturing method thereof | |
| JP6064790B2 (en) | DC-DC converter | |
| CN216054211U (en) | Parallel transformer | |
| CN218568624U (en) | Magnetic element and electronic device | |
| CN210223750U (en) | High-frequency transformer adopting L-shaped needle | |
| CN202871515U (en) | Electronic transformer | |
| CN201430059Y (en) | High-frequency SMD inverter transformer bobbin | |
| CN204304766U (en) | Frequency converter | |
| CN219534262U (en) | Ultrathin high-frequency transformer | |
| JP2666466B2 (en) | High frequency heating equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: SELF ELECTRONICS CO.,LTD. Assignor: Lin Wanjiong Contract record no.: 2012330000180 Denomination of utility model: Winding method for high-frequency transformer winding and high-frequency transformer Granted publication date: 20120104 License type: Exclusive License Record date: 20120416 |
|
| ASS | Succession or assignment of patent right |
Owner name: NINGBO HI. TECH. PARK SELF ELECTRONICS CO., LTD. Free format text: FORMER OWNER: LIN WANJIONG Effective date: 20141219 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20141219 Address after: The national high tech Zone Juxian 315103 Ningbo Road, Zhejiang province No. 1345 Patentee after: SELF ELECTRONICS CO.,LTD. Address before: 315103 Zhejiang city of Ningbo province high tech Zone Juxian Road No. 1345 Ningbo Purcell Electronics Ltd. Patentee before: Lin Wanjiong |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: The national high tech Zone Juxian 315103 Ningbo Road, Zhejiang province No. 1345 Patentee after: SELF ELECTRONICS CO., LTD. Address before: The national high tech Zone Juxian 315103 Ningbo Road, Zhejiang province No. 1345 Patentee before: SELF ELECTRONICS CO.,LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120104 |