CN101699584B - Electronic transformer - Google Patents
Electronic transformer Download PDFInfo
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- CN101699584B CN101699584B CN2009101104312A CN200910110431A CN101699584B CN 101699584 B CN101699584 B CN 101699584B CN 2009101104312 A CN2009101104312 A CN 2009101104312A CN 200910110431 A CN200910110431 A CN 200910110431A CN 101699584 B CN101699584 B CN 101699584B
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- skeleton
- magnetic core
- transformer
- electronic transformer
- coil
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- 230000003044 adaptive effect Effects 0.000 claims abstract description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000004804 winding Methods 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract 3
- 230000005389 magnetism Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 239000011469 building brick Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004079 fireproofing Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses an electronic transformer, comprising a framework, a coil and a magnetic core group; wherein the framework is in a horizontal H shape, and a run-through hole is arranged at the center of the top surface of the framework; the framework is provided with a ring-shaped groove for winding the coil; symmetrical separation blades are arranged at the top and bottom surfaces of the framework; the magnetic core group comprises two magnetic cores which are buckled together in a dome shape, and a space for containing the framework and the coil is arranged between the magnetic cores; a V-shaped cut, corresponding to the separation blades, is arranged on the magnetic core for mutual location with the separation blades; a column part adaptive to the run-through hole is arranged at the center of the magnetic core. The electronic transformer provided by the invention adopts the horizontal H shaped framework, so as to reduce the volume of the transformer and realize microminiaturization of the electronic transformer; in addition, the dome-shaped magnetic core of a cylinder is arranged at the center, the opening of the magnetic core is small, so as to lead the leakage inductance of the transformer to be small and reduce the magnetism loss of the transformer.
Description
Technical field
The present invention relates to a kind of transformer, be specifically related to improvement the electronic transformer structure.
Background technology
Transformer is a kind of electronic building brick commonly used, is mainly used in lifting or reduces the voltage on the circuit.Traditional electronic transformer, shown in Figure 2 like Fig. 1, comprise skeleton 110, coil 120, magnetic core set 130 and pin 140.Skeleton 110 is generally cuboid, and its central authorities are provided with through hole 150.Magnetic core set 130 generally is made up of the multi-disc magnetic core, and inserts in the through hole 150.The lead-in wire of coil 120 can be electrically connected with circuit board after welding well with corresponding pin 140.
Magnetic core set of the prior art generally is the E font, and is shown in Figure 3 like Fig. 2, when magnetic core set 130 is inserted skeleton 110, is prone to the phenomenon of damaging magnetic core, reduced the yield of product.The pin 150 of transformer is generally two rows, is separately positioned on the both sides of skeleton 110 end faces.Because skeleton 110 end faces are generally rectangle, this makes the volume of transformer big, and when transformer and circuit board grafting, the area that makes it take circuit board is big, the unfavorable miniaturization of electronic products of using.Simultaneously, in the prior art, the opening of magnetic core set 130 is bigger, and this makes the leakage inductance of transformer big, and skin effect, proximity effect are serious, and magnetic core has problems such as local overheating, has shortened the useful life of transformer.
Thereby the structure of existing transformer is still waiting to improve and improve.
Summary of the invention
The object of the present invention is to provide a kind of electronic transformer, when reducing volume of transformer, can also reduce the magnetic loss of transformer.
In order to achieve the above object, the present invention has taked following technical scheme:
A kind of electronic transformer comprises skeleton, coil and magnetic core set, and wherein, said skeleton is I shape, and the end face central authorities of skeleton are provided with through hole; One annular groove is arranged on the sidewall of said skeleton, be used for coiling; The end face and the bottom surface of said skeleton are provided with catch, are used for magnetic core set is located; The end face of said skeleton is provided with a grafting piece, the pin of the transformer that is used to peg graft, and the catch of said grafting piece and its place face is symmetrical set; Said pin is arranged to a row, and the end face of pin and skeleton laterally arranges, and stretches out the sidewall of skeleton; Said coil is at least two, and is fixed in the annular groove of said skeleton; Said magnetic core set comprises two magnetic cores, is the dome shape and snaps together, and formation one installs the space of said skeleton and coil between said magnetic core; Said magnetic core is provided with the otch of corresponding said catch, is used for locating mutually with said catch; Central authorities at said magnetic core also are provided with the post portion adaptive with said through hole; Said electronic transformer is round pie.
Described electronic transformer, wherein, said grafting piece is triangular in shape, and the outside of said skeleton sidewall is stretched out in the bottom of grafting piece.
Described electronic transformer, wherein, said pin is four, is used for being electrically connected with the elementary line group and the secondary wire set of coil.
Described electronic transformer, wherein, said catch is V-shape, and the openend of catch stretches out the outside of said skeleton sidewall.
Described electronic transformer, wherein, the end face of said skeleton and bottom surface are provided with the breach corresponding with said catch.
Described electronic transformer, wherein, the otch of said magnetic core comprises two, and is set to V-shape.
Described electronic transformer wherein, is provided with a circular hole at least on the said skeleton, be used to draw the lead-in wire of coil.
Described electronic transformer wherein, also comprises shell, is used for fixing said magnetic core set.
Electronic transformer provided by the invention owing to adopted the skeleton of I shape, has reduced the volume of transformer; Realized that electronic transformer is microminiaturized, also adopted central authorities to be provided with the dome shape magnetic core of columnar portion simultaneously, the opening of magnetic core is little; Make transformer leakage inductance little; Reduce the magnetic loss of transformer, reduced the electromagnetic interference of transformer, increased the useful life of product.
Description of drawings
Fig. 1 is the skeleton structure sketch map of electronic transformer in the prior art;
Fig. 2 is the structural representation of electronic transformer in the prior art;
Fig. 3 is the structural representation of magnetic core set in the prior art;
Fig. 4 is the structural representation of electronic transformer provided by the invention;
Fig. 5 looks sketch map for the mansion of electronic transformer skeleton provided by the invention;
Fig. 6 is the bottom surface structural representation of electronic transformer skeleton provided by the invention;
Fig. 7 is the top surface structure sketch map of electronic transformer skeleton provided by the invention;
Fig. 8 is the structural representation of electronic transformer finished product provided by the invention.
Embodiment
For making the object of the invention, technical scheme and effect clearer, clear and definite, below with reference to accompanying drawing and give an actual example to further explain of the present invention.
Electronic transformer provided by the invention, like Fig. 4, Fig. 5, Fig. 6, shown in Figure 7, transformer comprises, skeleton 310, coil 320, magnetic core set 330 and pin 340.Said skeleton 310 is processed by fire proofing, and skeleton is made as I shape.On the end face of said skeleton 310 and bottom surface, be symmetrically arranged with catch 312, said catch 312 is used for locating mutually with magnetic core set.End face central authorities at skeleton 310 also are provided with through hole 311, and said through hole 311 can be set to circle.
In the present embodiment; The height of skeleton is for being no more than 10MM, and integral body is round pie, and the side of skeleton 310 is provided with an annular groove 315; Transformer is when production and processing; Earlier on said annular groove 315, twine one deck insulating tape or insulating paper (indicating goes out among the figure) at least, through coil winding machine lead-in wire is wound in the said annular groove then, form coil 320.Said coil 320 is at least two, and it comprises primary coil and secondary coil, also is provided with one deck insulating tape at least at the lateral surface of said coil 320.When transformer assembled, said insulating tape can prevent that coil is damaged, improves the yield of product.
As shown in Figure 4, said magnetic core set 330 comprises two magnetic cores, and magnetic core 330 is the dome shape, and two magnetic cores can snap together, between two magnetic cores, form one install said skeleton 310 and coil 320 the space.On the end face of magnetic core 330, be provided with the otch 331 with said catch 312 symmetries, said otch 331 is used for locating mutually with said catch 312.In the preferred embodiment, each said magnetic core comprises two otch, and in the central authorities of said magnetic core the post portion 332 adaptive with said through hole 311 is set also, and post portion 332 can be set to cylinder, and inserts in the said through hole 311.When production and processing, can be at the contact-making surface of magnetic core and magnetic core, and be coated with a small amount of grey glue on the contact-making surface of magnetic core and coil, make the magnetic core bonding firmly.
In this enforcement, be round pie after the electronic transformer assembling is accomplished, as shown in Figure 8, the diameter of transformer is not more than 35MM, highly is not more than 11MM, so the volume of transformer is little, in light weight, has realized that electronic transformer is microminiaturized.And the magnetic core set of transformer is that central authorities are provided with cylindrical dome shape magnetic core, and the opening of its magnetic core set is little, makes the magnetic resistance of transformer little, loss is low, leakage field is little, has also solved the local overheated problem of transformer simultaneously.
Electronic transformer provided by the invention, like Fig. 5, Fig. 6, shown in Figure 7, in a preferred embodiment, the end face of skeleton 310 or bottom surface are provided with a grafting piece 313, and said grafting piece is triangular in shape.Said grafting piece 313 extends to the round pie periphery direction of said skeleton from the external diameter edge of through hole and is provided with, and the top of grafting piece (being leg-of-mutton top) be arranged on the edge of said through hole, and the said skeleton outside is slightly stretched out in the bottom of grafting piece.
In a further embodiment, said grafting piece 313 is symmetrical set with the catch 312 of its place face, is used for and said magnetic core location.Should be noted that said grafting piece can also be set to other shape, like rectangle, trapezoidal etc.
For transformer is fixed on the circuit board, the pin 340 of transformer is processed by the metal material that conducts electricity very well.One end of said pin 340 inserts in the said grafting piece 313, and the other end of pin stretches out the sidewall of said skeleton.The lead-in wire of transformer and secondary coil can be electrically connected the back with corresponding pin and circuit board is electrically connected.
In a preferred embodiment, transformer comprises 4 pins, and said pin 340 is arranged to a row, and the end face of pin and said skeleton laterally arranges.When transformer is electrically connected with circuit board, need transformer vertically is plugged on the circuit board, so just significantly reduced the wiring area of circuit board, help miniaturization of electronic products.And, only on the end face of skeleton or bottom surface, a grafting piece is set, make the two sides of transformer asymmetric, when transformer is electrically connected with circuit board, also is convenient to the staff and operates, reduced the defect rate of electronic product in process of manufacture.
In a further embodiment, like Fig. 5, Fig. 6, shown in Figure 7, said catch 312 is set to V-shape, and the openend of catch stretches out the side of said skeleton.The otch 331 of said magnetic core also is set to the V-shape corresponding with said catch 312, so that magnetic core is installed in the outside of said catch.At the end face of skeleton 310 with at the end, also be provided with the breach corresponding 314 with catch, said breach 314 is V-shape.When production and processing, the staff can confirm whether the dipping lacquer of transformer is qualified through otch, and the design of v-notch has simultaneously reduced the raw material of skeleton, can reduce the cost of product, but also can increase the overall appearance of skeleton.Certainly, in other embodiments, the breach of said catch, skeleton and the otch of magnetic core can also be provided with other shape.
In a further embodiment, on said skeleton, also be provided with a circular hole (not marking among the figure) at least, the lead-in wire of coil is drawn from circular hole, be electrically connected with the pin of transformer then.Certainly, the hole that is used to draw lead-in wire can also be other shape, such as: rectangle, triangle, perhaps other is irregularly shaped.
In embodiment further, transformer also comprises shell 350, and is as shown in Figure 4, and said shell can be made as the dome type, is used for fixing the magnetic core of transformer.When producing assembling, can on the contact-making surface of shell and magnetic core, put some glue fixing shell and magnetic cores.
Electronic transformer provided by the invention, whole employing round pie designs, and has reduced the volume of transformer; Simultaneously the pin of transformer is stretched out the design of the sidewall of skeleton, and pin is made as a row, when transformer is electrically connected with circuit board; Transformer is vertically inserted, so just significantly reduced the wiring area of circuit board, and the pin of transformer is few; Plug-in unit is convenient, and the probability that occurs leakage weldering, rosin joint during welding is little, has improved the yield of electronic product.The present invention has also adopted the magnetic core of the little dome shape of opening, makes the magnetic resistance of transformer little, iron loss is low, also increased the useful life of transformer simultaneously.
It is understandable that, concerning those of ordinary skills, can be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, and all these changes or replacement all should belong to the protection range of the appended claim of the present invention.
Claims (8)
1. an electronic transformer comprises skeleton, coil and magnetic core set, it is characterized in that,
Said skeleton is I shape, and the end face central authorities of skeleton are provided with through hole; The sidewall of said skeleton is provided with an annular groove, is used for coiling; The end face and the bottom surface of said skeleton are provided with catch, are used for magnetic core set is located; The end face of said skeleton is provided with a grafting piece, the pin of the transformer that is used to peg graft, and the catch of said grafting piece and its place face is symmetrical set; Said pin is arranged to a row, and the end face of pin and skeleton laterally arranges, and stretches out the sidewall of skeleton;
Said coil is at least two, and is fixed in the annular groove of said skeleton;
Said magnetic core set comprises two magnetic cores, is the dome shape and snaps together, and formation one installs the space of said skeleton and coil between said magnetic core; Said magnetic core is provided with the otch of corresponding said catch, is used for locating mutually with said catch; Central authorities at said magnetic core also are provided with the post portion adaptive with said through hole;
Said electronic transformer is round pie.
2. electronic transformer according to claim 1 is characterized in that, said grafting piece is triangular in shape, and the outside of said skeleton sidewall is stretched out in the bottom of grafting piece.
3. electronic transformer according to claim 1 is characterized in that said pin is four, is used for being electrically connected with the elementary line group and the secondary wire set of coil.
4. electronic transformer according to claim 1 is characterized in that said catch is V-shape, and the openend of catch stretches out the outside of said skeleton sidewall.
5. electronic transformer according to claim 4 is characterized in that, the end face of said skeleton and bottom surface are provided with the breach corresponding with said catch.
6. electronic transformer according to claim 4 is characterized in that the otch of each said magnetic core comprises two, and is set to V-shape.
7. electronic transformer according to claim 1 is characterized in that, is provided with a circular hole on the said skeleton at least, is used to draw the lead-in wire of coil.
8. electronic transformer according to claim 1 is characterized in that, also comprises shell, is used for fixing said magnetic core set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101104312A CN101699584B (en) | 2009-10-27 | 2009-10-27 | Electronic transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101104312A CN101699584B (en) | 2009-10-27 | 2009-10-27 | Electronic transformer |
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| Publication Number | Publication Date |
|---|---|
| CN101699584A CN101699584A (en) | 2010-04-28 |
| CN101699584B true CN101699584B (en) | 2012-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101104312A Active CN101699584B (en) | 2009-10-27 | 2009-10-27 | Electronic transformer |
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| CN (1) | CN101699584B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6273023B2 (en) * | 2013-09-10 | 2018-01-31 | モレックス エルエルシー | Connector with sensor |
| CN104505223B (en) * | 2014-08-27 | 2017-06-20 | 江门市尚品科技研发电子有限公司 | A kind of improved structure of magnetic core and bobbin |
| JP6380753B2 (en) * | 2014-12-25 | 2018-08-29 | 株式会社オートネットワーク技術研究所 | Reactor |
| CN109192441A (en) * | 2018-08-15 | 2019-01-11 | 湖州同立光电材料有限公司 | Combine inductor |
| CN113571312A (en) * | 2021-07-28 | 2021-10-29 | 东莞市大忠电子有限公司 | Four-side pin outlet power transformer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1862722A (en) * | 2005-05-12 | 2006-11-15 | 台湾东电化股份有限公司 | Transformer structure |
| CN200969267Y (en) * | 2006-11-06 | 2007-10-31 | 台湾东电化股份有限公司 | Insulation casing structure for transformer |
| CN101521095A (en) * | 2008-11-20 | 2009-09-02 | 武汉长江通信产业集团股份有限公司 | High frequency switching mode power supply transformer |
-
2009
- 2009-10-27 CN CN2009101104312A patent/CN101699584B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1862722A (en) * | 2005-05-12 | 2006-11-15 | 台湾东电化股份有限公司 | Transformer structure |
| CN200969267Y (en) * | 2006-11-06 | 2007-10-31 | 台湾东电化股份有限公司 | Insulation casing structure for transformer |
| CN101521095A (en) * | 2008-11-20 | 2009-09-02 | 武汉长江通信产业集团股份有限公司 | High frequency switching mode power supply transformer |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2002-231538A 2002.08.16 |
| JP特开A 2007.10.18 |
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| Publication number | Publication date |
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| CN101699584A (en) | 2010-04-28 |
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Owner name: SHENZHEN JINGQUANHUA ELECTRONICS CO., LTD. Free format text: FORMER OWNER: JU WANJIN Effective date: 20111124 |
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Effective date of registration: 20111124 Address after: Jingquan Industrial Park No. 1 518110 Guangdong city of Shenzhen province Baoan District Guanlan Street Library Keng Xin Wei long Applicant after: Shenzhen Jingquanhua Electronics Co., Ltd. Address before: 9 C1204 room, Great Wall Building, Baihua five road, Shenzhen, Guangdong, Futian District 518000, China Applicant before: Ju Wanjin |
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Owner name: SHENZHEN JINGQUANHUA TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHENZHEN JINGQUANHUA ELECTRONICS CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: Jingquan Industrial Park No. 1 518110 Guangdong city of Shenzhen province Baoan District Guanlan Street Library Keng Xin Wei long Patentee after: Shenzhen JingQuanHua Electronics Co., Ltd. Address before: Jingquan Industrial Park No. 1 518110 Guangdong city of Shenzhen province Baoan District Guanlan Street Library Keng Xin Wei long Patentee before: Shenzhen Jingquanhua Electronics Co., Ltd. |
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Effective date of registration: 20181211 Address after: 438300 North Ring West Road, Macheng City, Hubei Province (10-11 factories in Xiding Industrial Park) Patentee after: Hubei Runsheng Electronic Industry Co., Ltd. Address before: 518110 Jingquanhua Industrial Park, Kukeng, Guanlan Street, Baoan District, Shenzhen City, Guangdong Province Patentee before: Shenzhen JingQuanHua Electronics Co., Ltd. |