CN104752045A - Transformer and inductor integrating structure and realization method thereof - Google Patents
Transformer and inductor integrating structure and realization method thereof Download PDFInfo
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- CN104752045A CN104752045A CN201310745220.2A CN201310745220A CN104752045A CN 104752045 A CN104752045 A CN 104752045A CN 201310745220 A CN201310745220 A CN 201310745220A CN 104752045 A CN104752045 A CN 104752045A
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- inductor
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Abstract
The invention discloses a transformer and inductor integrating structure. The transformer and inductor integrating structure comprises a B-shaped magnetic core which is composed of an annular magnetic conductor and a central column magnetic conductor, wherein the two ends of a central column are connected with the annular magnetic conductor; two side columns of the annular magnetic conductor are symmetrically distributed relative to the central column, namely a first side column and a second side column; a primary coil of a transformer is wound on the central column of the magnetic core; a secondary coil of the transformer is also wound on the central column of the magnetic core; an inductor coil is wound on the first side column and the second side column of the magnetic core, namely the inductor coil is divided into a first part and a second part; the winding turn quantities of the two parts are the same, and the winding directions are opposite. In the integrating structure, the transformer and the inductor use the same magnetic core and are not interfered with each other, so that the de-coupling is realized. The integrating structure can be used as the transformer and also can be used as the inductor, and also can be used as the transformer and the inductor at the same time, so that the volume is reduced, the cost is reduced, the weight is reduced and the consumption of materials is reduced.
Description
Technical field
The application relates to a kind of novel electronic component, can use as transformer, can use again as inductor, can also use as transformer and inductor simultaneously.
Background technology
Transformer (transformer) is a kind of electronic component being used for raising or reducing alternating voltage.Refer to Fig. 1, this is a simple two winding transformer.A closed magnetic core (also claiming iron core) 10 is wound with primary coil (also claiming former limit winding) 11 and secondary coil (also claiming vice-side winding) 12.When primary coil 11 is by alternating current, produce magnetic flux 15 in magnetic core 10, this magnetic flux 15 makes secondary coil 12 produce induced current.
Inductor (inductor) is a kind of when the electric current by closed-loop path changes, and can produce the electronic component that induced electromotive force changes to resist electric current.Refer to Fig. 2, this is a simple inductor, and a closed magnetic core 20 is wound with one group of coil 21.When coil 21 is by alternating current, in magnetic core 20, produce magnetic flux 25.
Transformer and inductor make use of mutual inductance (mutual inductance) and self-induction (self-inductance) principle respectively.They are very extensive as the application of basic electronic component, and some circuit can use transformer and inductor simultaneously, but both has certain volume, thus needs to occupy certain space, also needs respective acquisition cost.
Summary of the invention
Technical problems to be solved in this application are to provide a kind of novel electronic component, adopt the method sharing magnetic circuit transformer and inductor to be integrated.For this reason, the application also will provide the implementation method of this electronic component.
For solving the problems of the technologies described above, the integrated morphology of the application's transformer and inductor comprises:
---" day " font magnetic core, is made up of an annular magnetizer and a newel; Described newel is also magnetic conductor, and two ends are all connected with described annular magnetizer; Described annular magnetizer has two lateral columns to be symmetric with newel, and these two lateral columns are called the first lateral column and the second lateral column;
---transformer, is wrapped on the newel of magnetic core;
---transformer secondary coil, is also wrapped on the newel of magnetic core;
---inductor coil, on the first lateral column being wrapped in magnetic core and the second lateral column, is called Part I and the Part II of inductor coil; This two-part winding number of turn is identical, and winding direction is contrary.
The implementation method of the integrated morphology of the application's transformer and inductor is: when described integrated morphology uses as transformer, applies alternating voltage between the two ends of primary coil, between the two ends of secondary coil, generate induced voltage; One or two exit of inductor coil is unsettled; The alternating current passed through in transformer produces magnetic flux; This magnetic flux goes out the first electromotive force at the Part I mutual induction of inductor coil, goes out the second electromotive force at the Part II mutual induction of inductor coil; Because the Part I of inductor coil is identical with the Part II number of turn, winding direction contrary, the thus equal and opposite in direction of the first electromotive force and the second electromotive force, direction is contrary, finally cancels out each other; The magnetic flux that primary coil produces can not induce electromotive force on inductor coil;
When described integrated morphology uses as inductor, inductor coil passes through electric current; The two ends of primary coil and the two ends of secondary coil all unsettled; The electric current passed through in inductor coil produces magnetic flux; The Part I of inductor coil forms the first magnetic flux on newel, and the Part II of inductor coil forms the second magnetic flux on newel; Because the Part I of inductor coil is identical with the Part II number of turn, winding direction is contrary, the thus equal and opposite in direction of the first magnetic flux and the second magnetic flux, and direction is contrary, finally cancels out each other; The magnetic flux that inductor coil produces can not induce electromotive force on primary coil and secondary coil.
The application makes transformer and inductor share magnetic core and non-interference in an integrated morphology, achieves both decoupling zeros.This integrated morphology both as transformer, also can use as inductor, also can work simultaneously, thus reduced volume, reduced costs, can also reduce weight, reduced the consumption of material.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of existing transformer;
Fig. 2 is a kind of structural representation of existing inductor;
Fig. 3 a and Fig. 3 b is two kinds of structural representations of the magnetic core that the application adopts;
Fig. 4 is the schematic diagram of the first embodiment of the integrated morphology of the application's transformer and inductor;
Fig. 5 is the schematic diagram of the second embodiment of the integrated morphology of the application's transformer and inductor.
Description of reference numerals in figure:
10 is magnetic core; 11 is primary coil; 12 is secondary coil; 15 is magnetic flux; 20 is magnetic core; 21 is coil; 25 is magnetic flux; 30 is magnetic core; Post centered by 31; 35 is the first lateral column; 36 is the second lateral column; 39 is air gap; 41 is transformer; 42 is transformer secondary coil; 43 is inductor coil; 45 magnetic flux produced for transformer coil; 46 magnetic flux produced for inductor coil.
Embodiment
Refer to Fig. 3 a, this is a kind of structure of the magnetic core 30 that the application adopts, and is made up of a rectangle magnetic conductor and a newel 31.Described rectangle magnetic conductor is connected in sequence by four linear lateral columns.Described newel 31 is also magnetic conductor, and its two ends are all connected with described rectangle magnetic conductor.This rectangle magnetic conductor has two linear lateral columns 35,36 to be symmetrically distributed relative to newel 31, and these two linear lateral columns are called the first lateral column 35 and the second lateral column 36.
Refer to Fig. 3 b, this is the another kind of structure of the magnetic core 30 that the application adopts, and is made up of a circular magnetic conductor and a newel 31.Described circular magnetic conductor is surrounded by a circular lateral column.Described newel 31 is also magnetic conductor, and its two ends are all connected with described circular magnetic conductor, and this circular magnetic conductor circular lateral column is divided into two semicircle lateral columns.Two semicircle lateral columns 35,36 of this circular magnetic conductor are symmetrically distributed relative to newel 31, and these two semicircle lateral columns are called the first lateral column 35 and the second lateral column 36.
In fact, as long as " day " shaped magnetic core meeting following condition all can be used for the application: this magnetic core is made up of an annular magnetizer and a newel.Described newel is also magnetic conductor, and two ends are all connected with described annular magnetizer.Annular magnetizer is equivalent to " day " shaped magnetic core " " font frame, the centre one of newel is equivalent to " day " shaped magnetic core is horizontal for mouth.Described annular magnetizer has two lateral columns to be symmetric with newel, and these two lateral columns are called the first lateral column and the second lateral column.
Described annular magnetizer can be close-shaped, can be also the non-closed shape being provided with one or more air gap and being formed on close-shaped magnetic conductor, as long as can form closed magnetic circuit on this annular magnetizer.
Described magnetic core, annular magnetizer, newel can be all en-block constructions, also can be that multi-blocked structure is spliced.When being spliced by multi-blocked structure, the material of different structure can be identical or different." day " shaped magnetic core such as shown in Fig. 3 a can be spliced by two pieces of E shaped magnetic cores, also can be spliced by one piece of E shaped magnetic core and one piece of I shaped magnetic core.
Refer to Fig. 4, this is the first embodiment of the integrated morphology of the application's transformer and inductor.The newel 31 of magnetic core 30 is wound with primary coil 41 and secondary coil 42, magnetic core 30 and insulating between two between primary coil 41 and secondary coil 42.The two ends of primary coil 41 are A point, B point.The two ends of secondary coil 42 are C point, D point.Secondary coil 42 also has centre cap, and this centre cap is equal to the umber of turn of C point, D point.First lateral column 35 and the second lateral column 36 of magnetic core 30 are wound with inductor coil 43, and one end E point of inductor coil 43 connects the centre cap of secondary coil 42, and the other end is that F point is externally drawn.Magnetic core 30 and insulating between two between inductor coil 43 and primary coil 41.Inductor coil 43 institute's winding part on the first lateral column 35, second lateral column 36 is called Part I, the Part II of inductor coil 43.These two parts winding number of turn of inductor coil 43 is identical, and winding direction is contrary.
Refer to Fig. 4, Part I, the Part II winding direction of inductor coil 43 refer on the contrary: suppose that E point is the starting point of inductor coil 43, F point is terminal, so observe from left to right from Fig. 4, inductor coil 43 is wound clockwise on the first lateral column 35, and the second lateral column 36 is wrapped anti-clockwise.Starting point, the terminal of any change inductor coil 43, or change into the direction of observation of right-to-left, all can find that the two-part winding direction of inductor coil 43 is contrary.
Alternatively, in fig 3b, the first lateral column 35, second lateral column 36 of magnetic core 30 respectively has an air gap 39, this is in order to avoid exchanging the magnetic saturation phenomenon under large-signal or direct current biasing, controls inductance value better.In fact, quantity, the position of air gap can change, and also can not arrange air gap.
When this first embodiment uses as transformer separately, the exit F point of inductor coil 43 is unsettled.Apply alternating voltage between the exit A point of primary coil 41, B point, in primary coil 41, just have passed alternating current.This alternating current forms closed magnetic flux 45 on the newel 31 and the first lateral column 35 of magnetic core 30.This alternating current still forms closed magnetic flux 45 on the newel 31 of magnetic core 30 and the second lateral column 36.The magnetic flux 45 that magnetic core 30 now only has transformer coil to produce.This magnetic flux 45 is through secondary coil 42, and just on secondary coil 42, mutual induction goes out electromotive force, thus generates induced voltage between the exit C point, D point of secondary coil 42.This magnetic flux 45 also have passed through inductor coil 43, the Part I being wrapped in the inductor coil 43 on the first lateral column 35 also can go out the first electromotive force by mutual induction, and the Part II being wrapped in the inductor coil 43 on the second lateral column 36 also can go out the second electromotive force by mutual induction.Because the Part I of inductor coil 43 is identical with the Part II number of turn, winding direction contrary, the thus equal and opposite in direction of the first electromotive force and the second electromotive force, direction is contrary, and final series connection is cancelled out each other.Therefore can think that the magnetic flux that the primary coil of transformer produces can not induce electromotive force on inductor coil.
When this first embodiment uses as inductor separately, the exit A point of primary coil 41, B point are unsettled, and exit C point, the D point of secondary coil 42 are also unsettled.Alternating current is passed in inductor coil 43.This alternating current defines closed magnetic flux 46 on first lateral column 35 and the second lateral column 36 of magnetic core 30.The magnetic flux 46 that magnetic core 30 now only has inductor coil to produce.This magnetic flux 46 self-induction on inductor coil 43 goes out electromotive force, thus makes inductor coil 43 become an inductor.The Part I being wrapped in the inductor coil 43 on the first lateral column 35 can form the first magnetic flux on the newel 31 of magnetic core 30, and the Part II being wrapped in the inductor coil 43 on the second lateral column 36 also can form the second magnetic flux on the newel 31 of magnetic core 30.Because the Part I of inductor coil 43 is identical with the Part II number of turn, winding direction is contrary, the thus equal and opposite in direction of the first magnetic flux and the second magnetic flux, and direction is contrary, finally cancels out each other, makes that the newel 31 of magnetic core 30 does not have magnetic flux.So be wrapped in the primary coil 41 on newel 31, secondary coil 42 also would not induce electromotive force.
When this first embodiment uses as transformer and inductor simultaneously, apply alternating voltage between the exit A point of primary coil 41, B point, between the exit C point, D point of secondary coil 42, generate induced voltage.Alternating voltage is applied between the exit E point, F point of inductor coil 43.Magnetic core 30 now has simultaneously the magnetic flux 46 of the magnetic flux 45 of transformer coil generation, inductor coil generation.With above independent as transformer, use as inductor separately time identical, the magnetic flux 45 that the primary coil 41 of transformer produces can not induce electromotive force on inductor coil 43, and the magnetic flux 46 that the coil 43 of inductor generates also can not induce electromotive force in transformer 41 and secondary coil 42.Namely achieve the decoupling zero between transformer and inductor in this integrated morphology, both work simultaneously and are independent of each other.
Refer to Fig. 5, this is the second embodiment of the integrated morphology of the application's transformer and inductor.The difference of itself and the first embodiment is only: two ends E point, the F point of inductor coil 43 are all externally drawn, and inductor coil 43 no longer connects secondary coil 42.
Identical with the first embodiment, this second embodiment separately as transformer, separately as inductor, use as transformer and inductor simultaneously time, the magnetic flux that the coil of the magnetic flux that the primary coil of transformer produces and inductor generates is independent of each other, and namely achieves the decoupling zero between transformer and inductor in this integrated morphology.
These are only the preferred embodiment of the application, and be not used in restriction the application.For a person skilled in the art, the application can have various modifications and variations.Within all spirit in the application and principle, any amendment done, equivalent replacement, improvement etc., within the protection range that all should be included in the application.
Claims (8)
1. an integrated morphology for transformer and inductor, is characterized in that, comprising:
---" day " font magnetic core, is made up of an annular magnetizer and a newel; Described newel is also magnetic conductor, and two ends are all connected with described annular magnetizer; Described annular magnetizer has two lateral columns to be symmetric with newel, and these two lateral columns are called the first lateral column and the second lateral column;
---transformer, is wrapped on the newel of magnetic core;
---transformer secondary coil, is also wrapped on the newel of magnetic core;
---inductor coil, on the first lateral column being wrapped in magnetic core and the second lateral column, is called Part I and the Part II of inductor coil; This two-part winding number of turn is identical, and winding direction is contrary.
2. the integrated morphology of transformer according to claim 1 and inductor, is characterized in that, one end of inductor coil connects the centre cap of secondary coil, and the other end is externally drawn.
3. the integrated morphology of transformer according to claim 1 and inductor, is characterized in that, the two ends of inductor coil are all externally drawn.
4. the integrated morphology of transformer according to claim 1 and inductor, is characterized in that, described magnetic core, annular magnetizer, newel or an en-block construction, or multi-blocked structure is spliced.
5. the integrated morphology of transformer according to claim 1 and inductor, is characterized in that, magnetic core arranges one or more air gap, produces magnetic saturation phenomenon to avoid magnetic core or controls inductance value.
6. the integrated morphology of transformer according to claim 1 and inductor, is characterized in that, described annular magnetizer is close-shaped, or the non-closed shape being provided with one or more air gap and being formed on close-shaped magnetic conductor.
7. an implementation method for the integrated morphology of transformer and inductor, is characterized in that, when described integrated morphology uses as transformer, applies alternating voltage between the two ends of primary coil, between the two ends of secondary coil, generates induced voltage; One or two exit of inductor coil is unsettled; The alternating current passed through in transformer produces magnetic flux; This magnetic flux goes out the first electromotive force at the Part I mutual induction of inductor coil, goes out the second electromotive force at the Part II mutual induction of inductor coil; Because the Part I of inductor coil is identical with the Part II number of turn, winding direction contrary, the thus equal and opposite in direction of the first electromotive force and the second electromotive force, direction is contrary, finally cancels out each other; The magnetic flux that primary coil produces can not induce electromotive force on inductor coil;
When described integrated morphology uses as inductor, inductor coil passes through electric current; The two ends of primary coil and the two ends of secondary coil all unsettled; The electric current passed through in inductor coil produces magnetic flux; The Part I of inductor coil forms the first magnetic flux on newel, and the Part II of inductor coil forms the second magnetic flux on newel; Because the Part I of inductor coil is identical with the Part II number of turn, winding direction is contrary, the thus equal and opposite in direction of the first magnetic flux and the second magnetic flux, and direction is contrary, finally cancels out each other; The magnetic flux that inductor coil produces can not induce electromotive force on primary coil and secondary coil.
8. the implementation method of the integrated morphology of transformer according to claim 7 and inductor, is characterized in that, described integrated morphology uses as transformer separately or uses as inductor separately, or uses as transformer and inductor simultaneously;
When described integrated morphology uses as transformer and inductor simultaneously, apply alternating voltage between the two ends of transformer, between the two ends of secondary coil, generate induced voltage; Inductor coil passes through electric current; The magnetic flux that transformer produces can not induce electromotive force on inductor coil; The magnetic flux that inductor coil produces can not induce electromotive force in transformer and secondary coil, thus decoupling zero both realizing, do not influence each other when working simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310745220.2A CN104752045A (en) | 2013-12-30 | 2013-12-30 | Transformer and inductor integrating structure and realization method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310745220.2A CN104752045A (en) | 2013-12-30 | 2013-12-30 | Transformer and inductor integrating structure and realization method thereof |
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| CN104752045A true CN104752045A (en) | 2015-07-01 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036819A (en) * | 2018-08-10 | 2018-12-18 | 遂宁普思电子有限公司 | Two-way integrates variable ratio mutual inductor |
| CN111431152A (en) * | 2020-02-27 | 2020-07-17 | 浙江科技学院 | Bridge type magnetic control type fault current limiter |
| WO2022040925A1 (en) * | 2020-08-25 | 2022-03-03 | Telefonaktiebolaget Lm Ericsson (Publ) | Magnetic apparatus, and voltage converter including the same |
| CN114334406A (en) * | 2021-08-19 | 2022-04-12 | 华为数字能源技术有限公司 | Magnetic integrated structure and transducer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5783984A (en) * | 1995-06-16 | 1998-07-21 | Hughes Electronics | Method and means for combining a transformer and inductor on a single core structure |
| CN101308724A (en) * | 2007-02-17 | 2008-11-19 | 浙江大学 | Magnet integrate construction of transformer and inductor |
| CN101728968A (en) * | 2010-01-19 | 2010-06-09 | 华为技术有限公司 | Magnetic integration double-end converter |
| CN203760297U (en) * | 2013-12-30 | 2014-08-06 | 联合汽车电子有限公司 | Integration structure of transformer and inductor |
-
2013
- 2013-12-30 CN CN201310745220.2A patent/CN104752045A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5783984A (en) * | 1995-06-16 | 1998-07-21 | Hughes Electronics | Method and means for combining a transformer and inductor on a single core structure |
| CN101308724A (en) * | 2007-02-17 | 2008-11-19 | 浙江大学 | Magnet integrate construction of transformer and inductor |
| CN101728968A (en) * | 2010-01-19 | 2010-06-09 | 华为技术有限公司 | Magnetic integration double-end converter |
| CN203760297U (en) * | 2013-12-30 | 2014-08-06 | 联合汽车电子有限公司 | Integration structure of transformer and inductor |
Non-Patent Citations (1)
| Title |
|---|
| 李洪璠等: "平面集成磁件在片式开关电源中的应用研究", 《通信电源技术》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036819A (en) * | 2018-08-10 | 2018-12-18 | 遂宁普思电子有限公司 | Two-way integrates variable ratio mutual inductor |
| CN111431152A (en) * | 2020-02-27 | 2020-07-17 | 浙江科技学院 | Bridge type magnetic control type fault current limiter |
| WO2022040925A1 (en) * | 2020-08-25 | 2022-03-03 | Telefonaktiebolaget Lm Ericsson (Publ) | Magnetic apparatus, and voltage converter including the same |
| CN114334406A (en) * | 2021-08-19 | 2022-04-12 | 华为数字能源技术有限公司 | Magnetic integrated structure and transducer |
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Application publication date: 20150701 |