CN202650818U - Transformer structure capable of increasing leakage inductance - Google Patents
Transformer structure capable of increasing leakage inductance Download PDFInfo
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- CN202650818U CN202650818U CN 201220115023 CN201220115023U CN202650818U CN 202650818 U CN202650818 U CN 202650818U CN 201220115023 CN201220115023 CN 201220115023 CN 201220115023 U CN201220115023 U CN 201220115023U CN 202650818 U CN202650818 U CN 202650818U
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- leakage inductance
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Abstract
The utility model relates to a transformer structure capable of increasing the leakage inductance. The transformer structure comprises a winding frame, a horizontal magnetic core and at least one vertical magnetic core, wherein the winding frame comprises a first winding part, a second winding part and an interval section, the second winding part is in coaxial arrangement with the first winding part, and the interval section is arranged between the first winding part and the second winding part. The horizontal magnetic core penetrates in the first winding part and the second winding part, and in addition, a first magnetic force path passing through the interval section is formed between the first winding part and the second winding part. The vertical magnetic core is vertically arranged in the interval section in the axial direction of the first winding part and the second winding part so that a magnetic core line on the first magnetic force path is guided to one end of the horizontal magnetic core group near the first winding part, and a second magnetic force path is formed. Therefore, the leakage inductance value of a transformer is increased or regulated.
Description
Technical field
The utility model relates to a kind of transformer device structure, relates in particular to a kind of transformer device structure that increases leakage inductance.
Background technology
So-called leakage inductance, or steelyard slepsydra inductance (Leakage inductance), refer to when in the transformer once the coupling coefficient of coiling and secondary coiling less than 1 the time, the transformer portion coiling can not played transformer action, only produce the effect of similar suppression inductance, the inductance that does not play the transformation effect in this part namely is called leakage inductance.
The leakage inductance of general transformer can cause the transformer output voltage to reduce, and because power can't reach completely conversion, and cause scattering and disappearing of energy, so early stage transformer is not seen for the generation of leakage inductance is mostly happy.Yet the characteristic of voltage drop in the time of can utilizing electric current to pass through makes transformer produce larger leakage inductance, can be applicable to have the fluorescent lamp of negativity impedance operator, neon light, and the stabilizer that connects of the current stability device Hu Xing Rong of other discharge lamp, the stabilizer of the microwave vacuum pipe of microwave oven etc.
In addition, secondary coiling is in parallel with resonant capacitance, and the leakage inductance by secondary side and this resonant capacitance generation resonance are as resonance transformer, and this resonance transformer can be applicable to fluorescent lamp electronic ballast, the neon-light electronic stabilizer is in cold cathode fluorescent lamp inverter or the Tesla coil.
On the other hand, in the power system of electronic product of new generation, transformer is then take the transformer of tool leakage inductance type as main flow.The LC resonant circuit that the electric current of input power supply system can be first consists of through the intrinsic leakage inductance 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 the loss and reduction noise of switch.
So, how to increase the transformer leakage inductance value, want the actively target of research and development for each dealer.
In view of the foregoing, TaiWan, China I291183 patent discloses a kind of transformer device structure, comprises main coiling, a level coiling, a Winder bracket module and a group unshakable in one's determination.This iron core group is arranged in the Winder bracket module, and Winder bracket module then comprises one first winding part and one second winding part, and this first winding part is used for twining this main coiling, and this second winding part is used for twining this secondary rolling thread.Wherein, have one first side plate between this first winding part and this second winding part, separate mutually with this secondary rolling thread so that this main winds the line, to increase leakage inductance and electrical safety distance.Yet adjust the technology that institute's wish increases leakage inductance by intercepting distance, will certainly increase the volume of integrated transformers, and disagree with the demand of electronic installation microminiaturization.
For addressing the above problem, TaiWan, China I304674 patent discloses a kind of transformer and utilizes the lamp tube structure of this transformer, includes a drum stand, a primary side coiling group, a secondary side coiling group, one first magnetic core, one second magnetic core.Drum stand has a through hole.Primary side coiling group and secondary side coiling group are curled up on drum stand respectively.The first magnetic core embeds through hole.The second magnetic core has first end and the second end, couples respectively the first magnetic core.The second magnetic core has more the first protuberance, and between first end and the second end, the first protuberance is disposed between primary side coiling group and the secondary side coiling group, guides magnetic line of force to a side by this first protuberance.Yet said structure is arranged at the side in the middle of primary side coiling group and the secondary side coiling group, and the magnetic force of its guiding is limited, and the leakage inductance value that increases is also limited, and its structure can not adjust suitable leakage inductance value, and still it is enough on application.
According to this, TaiWan, China M300858 patent discloses a kind of transformer of capable of regulating leakage inductance, includes one first iron core, a drum stand and one second iron core.Wherein the first iron core is positioned among the drum stand.The second iron core includes a magnetic conductive component and a leakage inductance element, and magnetic conductive component is covered in a side of drum stand, and forms a closed magnetic path with the first iron core.The leakage inductance element is located on the magnetic conductive component, can be with respect to the magnetic conductive component displacement, and change the spacing distance of leakage inductance element and drum stand, in order to adjust the leakage inductance element to the leakage inductance of drum stand.Yet above-mentioned leakage inductance element still is arranged at a side of drum stand, and is identical with the I304674 patent, and for fear of structural restriction, the leakage inductance value that increases is limited, can not reach the effect of effective increase leakage inductance.
In view of above-mentioned reason, TaiWan, China M336515 patent discloses a kind of transformer.This transformer comprises at least one high-tension coil, at least one low-voltage coil and at least one soft magnetism gel.The soft magnetism gel is arranged between high-tension coil and the low-voltage coil, uses the increase leakage inductance value.Yet, must a die sinking moulding when above-mentioned soft magnetism gel is made on technique, the leakage inductance values design different such as the need collocation namely needs out different moulds to go design, therefore, is that an economic benefit is not had in suitable inconvenience yet on production process.
The utility model content
Main purpose of the present utility model, be to provide a kind of high leakage inductance, relative volume less, and can adjust on demand the transformer device structure of required leakage inductance value, use the practicality that promotes leakage inductance transformer.
For reaching above-mentioned purpose, the utility model provides a kind of transformer device structure that increases leakage inductance, includes:
One drum stand includes one first winding section, one with the second winding section of this coaxial setting in the first winding section, an and spacer segment that is arranged between this first winding section and this second winding section;
One horizontal magnetic core group is arranged in this first winding section and this second winding section and forms first a magnetic force path by this spacer segment between this first winding section and this second winding section; And
At least one vertical magnetic core, with axially being vertically installed in this spacer segment of this first winding section and this second winding section, the magnetic line of force on this first magnetic force path of this vertical core directs to this horizontal magnetic core group near an end of this first winding section and form one second magnetic force path, guide to this second magnetic force path by the magnetic line of force with this first magnetic force path and promote leakage inductance value.
Further, this spacer segment includes at least one magnetic core setting area that axial each vertical magnetic core of also corresponding confession arranges around this first winding section and this second winding section in this first magnetic force path one side.
Further, transformer device structure includes a plurality of vertical magnetic cores, and this vertical magnetic core is curved structure respectively, connects each other to place this spacer segment to be surrounded between this first winding section and this second winding section.
Further, this vertical magnetic core includes respectively a junction, and the connecting portion of different this vertical magnetic core is engaged with each other and makes this two vertical magnetic core form a ring type structure.
Further, this spacer segment includes at least one magnetic force penetrating region that this vertical magnetic core arranges that lacks in this first magnetic force path one side.
Further, corresponding each the vertical magnetic core of this interval region includes the encapsulation of this vertical magnetic core of at least one embedding in this interval region.
Further, also further include another and axially be vertically installed in vertical magnetic core in this spacer segment, an and insulation division of being located in the middle of this two vertical magnetic core with this first winding section and this second winding section.
Further, also further include one by this horizontal magnetic core group extension and center on this first winding section and the magnetic conduction framework of all sides in this second winding section.
Further, the material of this horizontal magnetic core group and this magnetic conduction framework is ferrous salt.
Further, the material of this vertical magnetic core is ferrous salt.
Therefore, the utility model is with respect to the beneficial effect of prior art:
1. the utility model is located at the vertical magnetic core of this horizontal magnetic core group by being arranged at this spacer segment and perpendicular rings, and this first winding section is outwards led back to by the side periphery of spacer segment in the magnetic force path, increases by this leakage inductance value of transformer.
2. vertical magnetic core of the present utility model can be the material of ferrous salt, can reduce by this high fever reaction that causes because of the eddy current damage.
The utility model can be by the quantity of adjusting magnetic core and then the effect that reaches the adjustment leakage inductance value.
Below in conjunction with the drawings and specific embodiments the utility model is described in detail, but not as to restriction of the present utility model.
Description of drawings
Fig. 1, the STRUCTURE DECOMPOSITION schematic diagram of the utility model the first embodiment;
Fig. 2, the structure cross-sectional schematic of the utility model the first embodiment;
Fig. 3, the magnetic force path schematic diagram of the utility model the first embodiment;
Fig. 4, the cross-sectional schematic of the utility model the second embodiment;
Fig. 5, the cross-sectional schematic of the utility model the 3rd embodiment;
Fig. 6, the cross-sectional schematic of the utility model the 4th embodiment.
Embodiment
Detailed description of the present utility model and technology contents now just cooperate graphic being described as follows:
See also Fig. 1 and Fig. 2, be STRUCTURE DECOMPOSITION of the present utility model and structure cross-sectional schematic, as shown in the figure: the utility model is a kind of transformer device structure that increases leakage inductance, include a drum stand 10, one passes the horizontal magnetic core group 30 of this drum stand 10, and two are arranged at the vertical magnetic core 20 that this drum stand 10 and perpendicular rings are located at this horizontal magnetic core group 30.This drum stand 10 has first winding section 11 that is formed with the first magnetic force path L1 (as shown in Figure 3), one second winding sections 12 that arrange in pairs with this first winding section 11 and pass for this first magnetic force path L1, and one be located at the spacer segment R that supplies the first magnetic force path L1 process between this first winding section 11 and this second winding section 12.This spacer segment R includes a magnetic core setting area R1 who is located on this first magnetic force path L1.The mode that this two vertical magnetic core 20 is pulled with upper and lower folder is assembled in this magnetic core setting area R1 and the magnetic line of force on this first magnetic force path L1 is guided to this horizontal magnetic core group 30 near an end of this first winding section 11, this two vertical magnetic core 20 is curved structure respectively, connects each other to place this spacer segment R to be surrounded between this first winding section 11 and this second winding section 12.On technique, the utility model can by increasing or reduce the quantity of this vertical magnetic core 20, be adjusted required leakage inductance value.
For being mutually combined to use, this two vertical magnetic core 20 is fixed on this drum stand 10, this vertical magnetic core 20 includes respectively a junction 21, the connecting portion 21 of different this vertical magnetic core 20 can mutually be engaged with each other and make this two vertical magnetic core 20 form a ring type structure, and must make this two vertical magnetic core 20 respectively upper and lower folder pull and be located on this first, second winding section 11, first, second fixed part 111,121 (as shown in Figure 3) of 12.Wherein this connecting portion 21 mode of being glued together mutually combines, or to fasten, chimeric etc. on any application machine association of ideas mode, is not limited in present embodiment, is chatted first bright at this.The material of this vertical magnetic core 20 can be silicon steel sheet, iron plate and ferrocart core or the higher metal of other permeabilities.This vertical magnetic core 20 adopts the ferrocart core that mixes ferrous salt is arranged (Ferrate) material in present embodiment, reduces by this because of eddy current and decreases the high thermal effect that produces.
For increasing the permeability of the utility model transformer, the utility model adopts the sheet metal of two E types to make up this drum stand 10, and it includes this horizontal magnetic core group 30 of passing this first winding section 11 and this second winding section 12 and and is extended and around this first winding section 11 and the magnetic conduction framework 40 of these the second winding section 12 all sides by this horizontal magnetic core group 30.The material of this horizontal magnetic core group 30 and this magnetic conduction framework 40 can be silicon steel sheet or iron plate, also can be and first, second ring-like magnetic conduction sheet 21, the 22 identical ferrocart cores that ferrous salt is arranged that mix, and avoids by this eddy current to decrease the high thermal effect that causes.
See also shown in Figure 3, magnetic force path schematic diagram for the utility model the first embodiment, as shown in the figure: this first winding section 11 is after receiving an alternating-current voltage source, be formed with many first magnetic force path L1, and by passing this horizontal magnetic core group 30 of the first winding section 11 and this second winding section 12, the generation induced current is used in the induction of generation electromagnetic coupled.Wherein all side rings in this first magnetic force path L1 are provided with this two vertical magnetic core 20, this two vertical magnetic core 20 guides the magnetic line of force in the first magnetic force path L1 on the horizontal magnetic core group 30 respectively to the direction of this horizontal magnetic core group near an end of this first winding section 11, to form one second magnetic force path L2, by this, make the part magnetic line of force can be through the second winding section 12, and then generation leakage flux, and further increase leakage inductance, so that transformer device structure of the present utility model need not increase the distance of 12 of the first winding section 11 and the second winding sections, can significantly promote leakage inductance value, thereby possess small size, the characteristic of high leakage inductance.
See also shown in Figure 4ly, be the cross-sectional schematic of the utility model the second embodiment, as shown in the figure: the transformer of the present embodiment place different from the transformer of the first embodiment is the design of vertical magnetic core, and all the other identical parts namely repeat no more.
In present embodiment, this vertical magnetic core 20a includes the two vertical magnetic core 20a that are arranged at respectively on this first fixed part 111 and the second fixed part 121.This vertical magnetic core 20a all can be divided into upper and lower two, and respectively by up and down this first fixed part 111 of both sides clipping and this second fixed part 121, uses that this two vertical magnetic core 20a is individually fixed on this first, second fixed part 111,121.Be folded with an insulation division 50 between this two vertical magnetic core 20a, by replacing this different insulation division 50 of thickness, adjust required leakage inductance value.
See also shown in Figure 5ly, be the cross-sectional schematic of the utility model the 3rd embodiment, as shown in the figure: the transformer of the present embodiment place different from the transformer of the first embodiment is the design of vertical magnetic core, and all the other identical parts namely repeat no more.
In present embodiment, the external diameter of these two vertical magnetic core 20b is slightly less than first, second winding section 11 of both sides, the external diameter of 12 dividing plates, therefore being formed with one can be for the embedding district of plastic ejection moulding, the mode by ejection formation used be surrounded on plastics between this first, second winding section 11,12 dividing plates and all sides of this vertical magnetic core 20b to form the encapsulation R2 of this vertical magnetic core 20b of an embedding, use fixing this vertical magnetic core 20b.
See also shown in Figure 6ly, be the cross-sectional schematic of the utility model the 4th embodiment, as shown in the figure: the transformer of the present embodiment place different from the transformer of the first embodiment is the design of vertical magnetic core, and all the other identical parts namely repeat no more.
In present embodiment, include three vertical magnetic core 20c, this vertical magnetic core 20c all includes a junction 21c and mutually combines by this connecting portion 21c and forms a circulus, and this spacer segment R includes at least one magnetic force penetrating region R3 that this vertical magnetic core 20c arranges that lacks in this first magnetic force path L1 one side, uses the magnetic line of force of adjusting by the second coiling group 12.So present embodiment can cooperate technologic demand, adjust the quantity of vertical magnetic core 20c, use the required leakage inductance value of control.
In sum, the utility model is located at the vertical magnetic core of this horizontal magnetic core group by being arranged at this spacer segment and perpendicular rings, this first winding section is outwards led back to by the side periphery of spacer segment in the magnetic force path, increases by this leakage inductance value of transformer.In addition, the utility model can by adjust the quantity of vertical magnetic core, make to produce the magnetic force penetrating region that penetrates for the magnetic line of force between vertical magnetic core, or by adjusting the thickness of this vertical magnetic core, adjust required leakage inductance value.On the other hand, vertical magnetic core of the present utility model can be the material of ferrous salt, can reduce by this high fever reaction that causes because of the eddy current damage.
Certainly; the utility model also can have other various embodiments; in the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the utility model.
Claims (10)
1. the transformer device structure that can increase leakage inductance is characterized in that, includes:
One drum stand includes one first winding section, one with the second winding section of this coaxial setting in the first winding section, an and spacer segment that is arranged between this first winding section and this second winding section;
One horizontal magnetic core group is arranged in this first winding section and this second winding section and forms first a magnetic force path by this spacer segment between this first winding section and this second winding section; And
At least one vertical magnetic core, with axially being vertically installed in this spacer segment of this first winding section and this second winding section, the magnetic line of force on this first magnetic force path of this vertical core directs to this horizontal magnetic core group near an end of this first winding section and form one second magnetic force path, guide to this second magnetic force path by the magnetic line of force with this first magnetic force path and promote leakage inductance value.
2. the transformer device structure that increases leakage inductance as claimed in claim 1, it is characterized in that this spacer segment includes at least one magnetic core setting area that axial each vertical magnetic core of also corresponding confession arranges around this first winding section and this second winding section in this first magnetic force path one side.
3. the transformer device structure that increases leakage inductance as claimed in claim 2, it is characterized in that, transformer device structure includes a plurality of vertical magnetic cores, and this vertical magnetic core is curved structure respectively, connects each other to place this spacer segment to be surrounded between this first winding section and this second winding section.
4. the transformer device structure that increases leakage inductance as claimed in claim 3 is characterized in that, this vertical magnetic core includes respectively a junction, and the connecting portion of different this vertical magnetic core is engaged with each other and makes this two vertical magnetic core form a ring type structure.
5. the transformer device structure that increases leakage inductance as claimed in claim 3 is characterized in that, this spacer segment includes at least one magnetic force penetrating region that this vertical magnetic core arranges that lacks in this first magnetic force path one side.
6. the transformer device structure that increases leakage inductance as claimed in claim 1 is characterized in that, corresponding each the vertical magnetic core of this interval region includes the encapsulation of this vertical magnetic core of at least one embedding in this interval region.
7. the transformer device structure that increases leakage inductance as claimed in claim 1, it is characterized in that, also further include another and axially be vertically installed in vertical magnetic core in this spacer segment, an and insulation division of being located in the middle of this two vertical magnetic core with this first winding section and this second winding section.
8. the transformer device structure that increases leakage inductance as claimed in claim 1 is characterized in that, also further includes one by this horizontal magnetic core group extension and centers on this first winding section and the magnetic conduction framework of all sides in this second winding section.
9. the transformer device structure that increases leakage inductance as claimed in claim 8 is characterized in that, the material of this horizontal magnetic core group and this magnetic conduction framework is ferrous salt.
10. the transformer device structure that increases leakage inductance as claimed in claim 1 is characterized in that, the material of this vertical magnetic core is ferrous salt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220115023 CN202650818U (en) | 2012-03-22 | 2012-03-22 | Transformer structure capable of increasing leakage inductance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220115023 CN202650818U (en) | 2012-03-22 | 2012-03-22 | Transformer structure capable of increasing leakage inductance |
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| Publication Number | Publication Date |
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| CN202650818U true CN202650818U (en) | 2013-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220115023 Expired - Lifetime CN202650818U (en) | 2012-03-22 | 2012-03-22 | Transformer structure capable of increasing leakage inductance |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105575646A (en) * | 2014-11-10 | 2016-05-11 | 天津市鲲鹏电子有限公司 | Method for improving leakage inductance of variable-frequency transformer |
| CN105826046A (en) * | 2015-01-27 | 2016-08-03 | 三星电机株式会社 | Coil component |
| CN106449053A (en) * | 2016-11-11 | 2017-02-22 | 深圳市莱福德光电有限公司 | High-frequency transformer |
| CN106997806A (en) * | 2016-01-26 | 2017-08-01 | Tdk株式会社 | Coil component |
| CN107195448A (en) * | 2017-04-26 | 2017-09-22 | 昱京科技股份有限公司 | Has the resonance transformer of leakage inductance adjustment |
| CN112185655A (en) * | 2020-09-30 | 2021-01-05 | 昱京科技股份有限公司 | Leakage inductance adjusting structure of thin resonant transformer |
-
2012
- 2012-03-22 CN CN 201220115023 patent/CN202650818U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105575646A (en) * | 2014-11-10 | 2016-05-11 | 天津市鲲鹏电子有限公司 | Method for improving leakage inductance of variable-frequency transformer |
| CN105575646B (en) * | 2014-11-10 | 2017-11-17 | 天津市鲲鹏电子有限公司 | A kind of method for improving variable-frequency transformer leakage inductance |
| CN105826046A (en) * | 2015-01-27 | 2016-08-03 | 三星电机株式会社 | Coil component |
| US9984804B2 (en) | 2015-01-27 | 2018-05-29 | Samsung Electro-Mechanics Co., Ltd. | Coil component |
| CN106997806A (en) * | 2016-01-26 | 2017-08-01 | Tdk株式会社 | Coil component |
| CN106997806B (en) * | 2016-01-26 | 2018-07-03 | Tdk株式会社 | Coil component |
| CN106449053A (en) * | 2016-11-11 | 2017-02-22 | 深圳市莱福德光电有限公司 | High-frequency transformer |
| CN106449053B (en) * | 2016-11-11 | 2018-06-26 | 深圳莱福德科技股份有限公司 | High frequency transformer |
| CN107195448A (en) * | 2017-04-26 | 2017-09-22 | 昱京科技股份有限公司 | Has the resonance transformer of leakage inductance adjustment |
| CN112185655A (en) * | 2020-09-30 | 2021-01-05 | 昱京科技股份有限公司 | Leakage inductance adjusting structure of thin resonant transformer |
| CN112185655B (en) * | 2020-09-30 | 2022-01-25 | 昱京科技股份有限公司 | Leakage inductance adjusting structure of thin resonant transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |