CN102074341A - Transformer structure - Google Patents
Transformer structure Download PDFInfo
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- CN102074341A CN102074341A CN 200910225925 CN200910225925A CN102074341A CN 102074341 A CN102074341 A CN 102074341A CN 200910225925 CN200910225925 CN 200910225925 CN 200910225925 A CN200910225925 A CN 200910225925A CN 102074341 A CN102074341 A CN 102074341A
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Abstract
The present invention relates to a transformer structure comprising a cover, a bobbin, a channel, a primary winding coil, a plurality of secondary winding coils and a magnetic core assembly, wherein the cover is provided with a plurality of conductive connecting pins; the bobbin connected with the cover includes a body, a first winding coil area and a plurality of single groove second winding coil areas, and the plurality of single groove second winding coil areas are arranged in the two sides of the first winding coil area; the channel is penetrated through the body; the primary winding coil is winded around the first winding coil area of the bobbin, and is connected with the plurality of conductive connecting pins of the cover; the plurality of secondary winding coils are respectively winded around the plurality of single groove second winding coil areas of the bobbin; and part of the magnetic core assembly is arranged in the channel of the bobbin. By means of arranging a plurality of single groove second winding coil areas on the bobbin, the transformer structure can improve the current switching power and increase the winding coil space of the first winding coil area, and can reduce the heat energy generated during the operation of the transformer.
Description
Technical field
The present invention relates to a kind of transformer device structure, refer to a kind of transformer device structure especially with a plurality of single groove second winding regions.
Background technology
Transformer is the magnetic element that often uses in the various electric equipment, and it utilizes the principle of electric energy, magnetic energy transformation induction to adjust different voltage, and making it reach electric equipment can applicable scope.
Generally speaking, the control of transformer leakage inductance (1eaking inductance) is very important to power supply changeover device, because it has influence on the power conversion efficiency of power supply changeover device.And at for example LCD (Liquid Crystal Display, LCD) etc. in the power system of electronic product of new generation, transformer is a main flow with the transformer of tool leakage inductance type then, for example: resonance transformer (LLC transformer), in this class is used, the LC resonant circuit that the electric current of power system can be earlier constituted through the intrinsic magnetic leakage sense L of a transformer primary and a capacity cell C, simultaneously, the electric current that is similar to half sine wave can pass through power field effect transistor switch.When electric current was zero, switch was conducting, and when returning zero through half sinusoidal wave after-current, switch will cut out.Adopt the soft switch designs of this tool resonant circuit, can reduce switching loss, the reduction noise of switch element and promote usefulness.And increase in order to adapt to slimming of LCD panel and panel size, magnetic element and the inner conductive winding of using also must be towards slimming and the trend developments that improves current conversion power.
See also Fig. 1, it is existing structural representation with transformer of leakage inductance type.As shown in the figure, transformer 1 comprises winding base 11 (bobbin), lid 12 (cover) and magnetic core set 13 (magnetic core assembly), wherein elementary coiling 111 (primary winding coil) and secondary rolling thread 112 (secondary winding coil) are wound on the winding base 11, as for its leading-out terminal 113,114 directly twine and are welded on the pin 115 that is extended by winding base 11 bottom vertical, 12 top covers by winding base 11 of lid are covered line pedestal 11, in order to increase elementary coiling 111, creepage distance between secondary rolling thread 112 and the magnetic core set 13, the first magnetic core portion 131 as for magnetic core set 13 is placed in the passage 116 of winding base 11,132 in the second magnetic core portion is sheathed on winding base 11 peripheries, to be assembled into transformer 1.
After yet existing transformer 1 assembling is finished, contact area between the second magnetic core portion 132 of its two correspondence can form an air gap (not shown), this air gap is formed between elementary coiling 111 and the secondary rolling thread 112, if by after secondary rolling thread 112 short circuits, therefore magnetic circuit can produce indivedual loops, this leakage inductance can be bigger, just is difficult to the leakage inductance value of control transformer 1 stably thus.In addition; leading-out terminal 113 when elementary coiling 111 and secondary rolling thread 112; 114 twine and when being welded on the pin 115; because the trunking 117 of existing winding base 11 is too short; be that distance between the winding region of pin 115 and winding base 11 is too short; can make scolding tin be infected with to be wound in elementary coiling 111 and secondary rolling thread 112 in the winding base 11; therefore existing meeting usually is at the leading-out terminal 113 of elementary coiling 111 with secondary rolling thread 112; sheathed sleeve pipe 14 around 114; though sheathed sleeve pipe 14 can reach the purpose that protection is wound in elementary coiling 111 and secondary rolling thread 112 in the winding base 11, derives the sleeve pipe melting loss; expend problems such as man-hour and material cost rising.
Therefore, how to develop a kind of transformer device structure that improves above-mentioned prior art defective, real in pressing for the problem of solution at present.
Summary of the invention
Main purpose of the present invention is to provide a kind of transformer device structure, it has the winding base of a plurality of single groove second winding regions, twine a plurality of secondary rolling threads respectively by a plurality of single groove second winding regions, to change coiling and magnetic circuit mode, thereby air gap is formed at and causes being difficult to the leakage inductance value of control transformer stably between elementary coiling and the secondary rolling thread during magnetic core set combination that solves existing transformer, and needs in the leading-out terminal of elementary coiling and secondary rolling thread shortcoming such as sheathed sleeve pipe on every side.
Another object of the present invention is to provide a kind of transformer device structure, its lid has a plurality of pin that connect makes the leading-out terminal of elementary coiling can be wound in described a plurality of connecting on the pin, the winding region space of winning is increased, to improve current conversion power and to reduce the heat energy that transformer was produced.
For reaching above-mentioned purpose, of the present invention one than the broad sense form of implementation for a kind of transformer device structure is provided, it comprises: lid has a plurality of pin that connect; Winding base, itself and lid are connected with group, and comprising: body have first winding region and a plurality of single groove second winding region, and a plurality of single groove second winding region is arranged at the both sides of first winding region; And passage, it runs through body; Elementary coiling, it is wound on first winding region of winding base, and is connected with a plurality of pin that connect of lid; A plurality of secondary rolling threads, it is wound in respectively on a plurality of single groove second winding region of winding base; And magnetic core set, its part is arranged in the passage of winding base.
According to conception of the present invention, wherein this lid also comprises body and holding part, and wherein body has hollow bulb, and hollow bulb is in order to ccontaining part body and elementary coiling, and holding part is in order to ccontaining part magnetic core set, and a plurality of pin that connects is connected with holding part.
According to conception of the present invention, wherein this winding base also comprises a plurality of dividing plates, the two opposite sides of body have sidewall respectively and extend base in sidewall, and a plurality of dividing plates are arranged on the body and with sidewall and define first winding region and a plurality of single groove second winding region jointly.
According to conception of the present invention, wherein this winding base also comprises a plurality of pin that connect, and it is extended by base, to be connected with the leading-out terminal of a plurality of secondary rolling threads.
According to conception of the present invention, wherein first winding region of this winding base is single-channel type structure or multi-groove type structure.
According to conception of the present invention, wherein this winding base has central baffle, and it is arranged in first winding region, in order to first winding region is divided into the multi-groove type structure.
According to conception of the present invention, wherein this central baffle has the gap, so that elementary coiling is passed through.
According to conception of the present invention, wherein this magnetic core set comprises the first magnetic core portion and the second magnetic core portion.
According to conception of the present invention, wherein this first magnetic core portion and the second magnetic core portion also have axle center part and a plurality of lateral column respectively.
According to conception of the present invention, wherein this magnetic core set is EE type magnetic core, UI type magnetic core or EI type magnetic core.
According to conception of the present invention, wherein this transformer is a resonance transformer.
Description of drawings
Fig. 1: it is the structural representation of the transformer of existing tool leakage inductance type.
Fig. 2 A: it is the decomposition texture schematic diagram of the transformer device structure of the present invention's first preferred embodiment.
Fig. 2 B: the schematic diagram that it is finished for the transformer coiling shown in Fig. 2 A of the present invention.
Fig. 2 C: the schematic diagram that it is finished for the assembling of the transformer shown in Fig. 2 A of the present invention.
Fig. 2 D: the ground plan that it is finished for the assembling of the transformer shown in Fig. 2 A of the present invention.
Fig. 3: it is for the decomposition texture schematic diagram of the present invention's second preferred embodiment.
Wherein, description of reference numerals is as follows:
Transformer: 1,2,3 winding base: 11,22,31
Elementary coiling: 111,24 secondary rolling threads: 112,25
113,114,24a, 24b, 251 pins leading-out terminal:: 115
Passage: 116,224 trunkings: 117,2271
Lid: 12,21 magnetic core set: 13,23
The first magnetic core portion: 131,231 second magnetic core portions: 132,232
Sleeve pipe: 14 first winding regions: 222
Single groove second winding region: 223,312 first areas: 222a, 312a
Second area: 222b, 312b the 3rd zone: 312c
The 4th zone: 312d connects pin: 213,228
First connects pin: 213a second connects pin: 213b
Holding part: 212 hollow bulbs: 214
Dividing plate: 225 sidewalls: 226
Base: 227 trunkings: 2271
Central baffle: 229 gaps: 2291
Axle center part: 231a, 232a lateral column: 231b, 232b
Body: 211,221,311
Embodiment
Some exemplary embodiments that embody feature of the present invention and advantage will be described in detail in the explanation of back segment.Be understood that the present invention can have various variations different in form, its neither departing from the scope of the present invention, and explanation wherein and accompanying drawing are in itself as an illustration, but not in order to restriction the present invention.
See also Fig. 2 A, it is the decomposition texture schematic diagram of the transformer device structure of the present invention's first preferred embodiment.As shown in the figure, transformer 2 of the present invention mainly comprises lid 21, winding base 22, magnetic core set 23, elementary coiling 24 and a plurality of secondary rolling thread 25 (shown in Fig. 2 B).Wherein, lid 21 is connected with group with winding base 22 and has body 211, holding part 212 and a plurality of pin 213 that connects, and body 211 inside have hollow bulb 214, and in this holding part 212 of the both sides of body 211 vertical extent, a plurality ofly connect the outboard end that pin 213 then is arranged at holding part 212.Winding base 22 of the present invention mainly comprises body 221, passage 224, a plurality of dividing plates 225, a plurality of sidewalls 226 and base 227, wherein passage 224 runs through body 221, and body 221 can be a column structure, sidewall 226 is arranged at the two opposite sides of body 221 respectively, dividing plate 225 is arranged on the body 221 and between two side 226, and dividing plate 225 is parallel to sidewall 226 in fact, the number of the dividing plate 225 of present embodiment is good with two, but not as limit, the surface separation of body 221 can be defined first winding region 222 and two single groove second winding regions 223 by sidewall 226 and dividing plate 225, and first winding region 222 is positioned at the middle section of body 221, and two single groove second winding regions 223 then are located at the dual-side of first winding region 222 respectively.In addition, the outer side edges of sidewall 226 vertical extent respectively is provided with base 227, and the outer side edges of base 227 can be provided with a plurality of pin 228 that connect in order to electrically connect with circuit board (not shown) and secondary rolling thread 25.In addition, in some embodiment, winding base 22 also can comprise central baffle 229, this central baffle 229 can be arranged in first winding region 222, in order to first winding region 222 is separated into multi-groove type structure with first area 222a and second area 222b, in addition, on central baffle 229, also has a gap 2291, use to stride by first area 222a and establish to second area 222b for elementary coiling 24, certainly, in other embodiment, first winding region 222 also can be a single-channel type structure, and central baffle promptly is not set.
Certainly, the quantity of single groove second winding region 223 that transformer 2 of the present invention is comprised is not limited to two shown in Fig. 2 A, in some embodiment, see also Fig. 3, it is the decomposing schematic representation of the transformer device structure of the present invention's second preferred embodiment, as shown in the figure, can define four zones jointly by four dividing plates 225 and sidewall 226 on the body 311 of the winding base 31 of transformer 3 for secondary rolling thread 25 windings, promptly by first area 312a, second area 312b, single groove second winding region 312 that the 3rd regional 312c and the 4th regional 312d are formed, each zone can be for twining a level coiling, can increase the current conversion power of transformer 3, but the quantity of single groove second winding region that the present invention comprised can change project organization on demand not as limit.
Please consult Fig. 2 A again, magnetic core set 23 of the present invention can comprise the first magnetic core portion 231 and the second magnetic core portion 232, and the first magnetic core portion 231 and the second magnetic core portion 232 have axle center part 231a, 232a and two side columns 231b, 232b respectively, make the magnetic core portion 231 that wins be connected with group into transformer 2 with the second magnetic core portion 232 with lid 21 and winding base 22.Certainly, magnetic core set 23 of the present invention is not limited to the EE type magnetic core set shown in Fig. 2 A, also can select magnetic core set such as UI type and EI type for use.
See also Fig. 2 B and cooperate Fig. 2 A, wherein Fig. 2 B is the schematic diagram that the transformer coiling shown in Fig. 2 A of the present invention is finished, as shown in the figure, elementary coiling 24 of the present invention can be a lead and is wound in first winding region 222 of body 221, the two ends of elementary coiling 24 comprise leading-out terminal 24a, 24b, wherein, the winding mode of elementary coiling 24 can be taked to be wound among the 222a of first area by leading-out terminal 24a earlier, and via the gap 2291 of central baffle 229, be across to second area 222b, to continue to be wound among the regional 222b of second coiling, after lid 21 and winding base 22 windings, the leading-out terminal 24a of elementary coiling 24 can be fastened at last and connect on the pin 213a in first of lid 21, leading-out terminal 24b then is fastened and connects pin 213b upward (shown in Fig. 2 C) in second of lid 21, because the leading-out terminal 24a of elementary coiling 24,24b is set around a plurality of pins 213 of lid 21 respectively, the winding space of the winding region 222 of winning is increased, can increase the winding turns of first winding region 222, with the current conversion power of raising transformer 2 of the present invention, and can reduce the heat energy that is produced when transformer 2 moves.
Certainly, the direction of winding of elementary coiling 24 is as limit, also can be by the second area 222b of first winding region 222 around to first area 222a.The a plurality of secondary rolling threads 25 of the present invention then are wound in respectively in a plurality of single groove second winding regions 223, be that each bar secondary rolling thread 25 only is wound in single groove second winding region 223, then be set around connect (shown in Fig. 2 D) on the pin 228 of base 227 as for two leading-out terminals of each bar secondary rolling thread 25 respectively.
Please consult Fig. 2 B again and cooperate Fig. 2 C and Fig. 2 D, the assembling mode of transformer 2 of the present invention is: earlier elementary coiling 24 is wound in first winding region 222 of body 21, and a plurality of secondary rolling threads 25 are wound in respectively in single groove second winding region 223 of correspondence, and the leading-out terminal of each secondary rolling thread 25 is fixed in connecting on the pin 228 of base 227, then lid 21 is assembled on the winding base 22, make in the hollow bulb 214 of the part body 221 of winding base 22 and the body 211 that elementary coiling 24 is placed in lid 21, follow leading-out terminal 24a with elementary coiling 24,24b connects pin 213a with first of lid 21 respectively, second connects pin 213b connects, follow-up then with the axle center part 231a of the first magnetic core portion 231 and the second magnetic core portion 232 of magnetic core set 23, the 232a appearance closes in the passage 224 of winding base 22, and its two side columns 231b, 232b then is arranged at the periphery of winding base 22, and part is placed in the holding part 212 of lid 21, to be assembled into transformer 2 of the present invention.Because the formed air gap of contact area (not shown) of two side columns 231b, the 232b of magnetic core set 23 after transformer 2 assemblings of the present invention are finished, be positioned on the elementary coiling 24, the leakage inductance value can not changed to some extent because of size of gaps, can adjust the leakage inductance value by changing the distance between elementary coiling 24 and the secondary rolling thread 25 or increasing winding turns, can reach the purpose of stable control leakage inductance value.
Please consult Fig. 2 D again, transformer 2 of the present invention can be by increasing trunking 2271 length of winding base 227, make to connect between pin 228 and single groove second winding region 223 and keep enough safe distances, the leading-out terminal 251 of secondary rolling thread 25 is welded on when connecting on the pin 28, scolding tin can be infected with the secondary rolling thread 25 that is wound in single groove second winding region 223, to solve the existing problem that needs sheathed sleeve pipe around the leading-out terminal of elementary coiling and secondary rolling thread.
In sum, transformer device structure of the present invention is by being provided with a plurality of single groove second winding regions on winding base, make and twine a level coiling in each single groove second winding region separately, can promote current conversion power, and lid of the present invention has a plurality of pin that connect, in order to be connected with the leading-out terminal of elementary coiling, make the winding space of first winding region increase and can reduce the heat energy that is produced when transformer moves, and by a plurality of single groove second winding regions being arranged at the dual-side of first winding region, after the transformer assembling is finished, the formed air gap of magnetic core set is positioned at elementary coiling, can reach the advantage of stable control leakage inductance value.
The present invention can be modified arbitrarily by the personnel that know this technology, however the scope of neither disengaging appended claims institute desire protection.
Claims (11)
1. transformer device structure, it comprises:
One lid has a plurality of pin that connect;
One winding base, itself and this lid is connected with group, and comprising:
One body has one first winding region and a plurality of single groove second winding region, and described a plurality of single groove second winding region is arranged at the both sides of this first winding region; And
One passage, it runs through this body;
One elementary coiling, it is wound on this first winding region of this winding base, and is connected with a plurality of pin that connect of this lid;
A plurality of secondary rolling threads, it is wound in respectively on described a plurality of single groove second winding region of this winding base; And
One magnetic core set, its part are arranged in this passage of this winding base.
2. transformer device structure as claimed in claim 1, wherein this lid also comprises a body and a holding part, wherein this body has a hollow bulb, this hollow bulb is in order to this body of ccontaining part and this elementary coiling, this holding part is in order to this magnetic core set of ccontaining part, and described a plurality of pin that connects is connected with this holding part.
3. transformer device structure as claimed in claim 1, wherein this winding base also comprises a plurality of dividing plates, the two opposite sides of this body have a sidewall respectively, and extend a base in this sidewall, described a plurality of dividing plates are arranged on this body and with this sidewall and define this first winding region and described a plurality of single groove second winding region jointly.
4. transformer device structure as claimed in claim 3, wherein this winding base also comprises a plurality of pin that connect, and described a plurality of pin that connect are extended by this base, to be connected with the leading-out terminal of described a plurality of secondary rolling threads.
5. transformer device structure as claimed in claim 1, wherein this of this winding base first winding region is single-channel type structure or multi-groove type structure.
6. transformer device structure as claimed in claim 5, wherein this winding base has a central baffle, and this central baffle is arranged in this first winding region, in order to this first winding region is divided into the multi-groove type structure.
7. transformer device structure as claimed in claim 6, wherein this central baffle has a gap, so that this elementary coiling is passed through.
8. transformer device structure as claimed in claim 1, wherein this magnetic core set comprises one first magnetic core portion and one second magnetic core portion.
9. transformer device structure as claimed in claim 8, wherein this first magnetic core portion and the second magnetic core portion also have an axle center part and a plurality of lateral column respectively.
10. transformer device structure as claimed in claim 8, wherein this magnetic core set is EE type magnetic core, UI type magnetic core or EI type magnetic core.
11. transformer device structure as claimed in claim 1, wherein this transformer device structure is a resonance transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910225925 CN102074341B (en) | 2009-11-23 | 2009-11-23 | Transformer structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910225925 CN102074341B (en) | 2009-11-23 | 2009-11-23 | Transformer structure |
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| Publication Number | Publication Date |
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| CN102074341A true CN102074341A (en) | 2011-05-25 |
| CN102074341B CN102074341B (en) | 2012-12-26 |
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| CN 200910225925 Active CN102074341B (en) | 2009-11-23 | 2009-11-23 | Transformer structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103023278A (en) * | 2011-09-23 | 2013-04-03 | 雅达电子国际有限公司 | Compact isolated switching power converters |
| CN103208922A (en) * | 2012-01-11 | 2013-07-17 | 台达电子工业股份有限公司 | Resonant converter with resonant transformer |
| CN106205978A (en) * | 2016-08-28 | 2016-12-07 | 天津光电惠高电子有限公司 | A kind of LLC transformator and processing technique thereof |
| CN106298195A (en) * | 2015-05-12 | 2017-01-04 | 光宝电子(广州)有限公司 | Magnetics |
| CN113496804A (en) * | 2020-04-08 | 2021-10-12 | 明纬(广州)电子有限公司 | Resonance transformer structure |
-
2009
- 2009-11-23 CN CN 200910225925 patent/CN102074341B/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103023278A (en) * | 2011-09-23 | 2013-04-03 | 雅达电子国际有限公司 | Compact isolated switching power converters |
| CN103023278B (en) * | 2011-09-23 | 2017-05-24 | 雅达电子国际有限公司 | Compact isolated switching power converters |
| CN103208922A (en) * | 2012-01-11 | 2013-07-17 | 台达电子工业股份有限公司 | Resonant converter with resonant transformer |
| CN106298195A (en) * | 2015-05-12 | 2017-01-04 | 光宝电子(广州)有限公司 | Magnetics |
| CN106298195B (en) * | 2015-05-12 | 2018-11-02 | 光宝电子(广州)有限公司 | Magnetic element |
| CN106205978A (en) * | 2016-08-28 | 2016-12-07 | 天津光电惠高电子有限公司 | A kind of LLC transformator and processing technique thereof |
| CN106205978B (en) * | 2016-08-28 | 2018-01-19 | 天津光电惠高电子有限公司 | A kind of LLC transformers and its processing technology |
| CN113496804A (en) * | 2020-04-08 | 2021-10-12 | 明纬(广州)电子有限公司 | Resonance transformer structure |
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| Publication number | Publication date |
|---|---|
| CN102074341B (en) | 2012-12-26 |
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