CN203760297U - Integration structure of transformer and inductor - Google Patents
Integration structure of transformer and inductor Download PDFInfo
- Publication number
- CN203760297U CN203760297U CN201320883285.9U CN201320883285U CN203760297U CN 203760297 U CN203760297 U CN 203760297U CN 201320883285 U CN201320883285 U CN 201320883285U CN 203760297 U CN203760297 U CN 203760297U
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- inductor
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- 230000010354 integration Effects 0.000 title abstract 5
- 238000004804 winding Methods 0.000 claims abstract description 16
- 239000004020 conductor Substances 0.000 claims description 17
- 238000010276 construction Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 3
- 230000004907 flux Effects 0.000 description 27
- 230000006698 induction Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses an integration structure of a transformer and an inductor. The integration structure comprises a magnetic core shaped like a Chinese character ri; the magnetic core is formed by an annular magnetizer and a central pillar magnetizer; two ends of a central pillar are connected with the annular magnetizer; the annular magnetizer comprises two parts which are in symmetric distribution by taking the central pillar as the center and are respectively named as a first side pillar and a second side pillar; a primary coil of the transformer is wound on the central pillar of the magnetic core; a secondary coil of the transformer is wound on the central pillar of the magnetic core; a coil of the inductor is wound on the first side pillar and the second side pillar of the magnetic core and are respectively named as a first part and a second part of the coil of the inductor; the winding turn numbers of the two parts are same and the winding directions of the two parts are opposite. The transformer and the inductor share one magnetic core in integration structure without mutual interference, so the decoupling of the two is realized; the integration structure can be used as the transformer, can be used as the inductor and can be used as a transformer and an inductor at the same time; the size is reduced, the cost is reduced, the weight is reduced and the material consumption is reduced.
Description
Technical field
The application relates to a kind of novel electronic component, can use as transformer, can use as inductor again, can also as transformer and inductor, use simultaneously.
Background technology
Transformer (transformer) is a kind of electronic component that is used for raising or reduces alternating voltage.Refer to Fig. 1, this is a simple two winding transformer.In a closed magnetic core (also claiming unshakable in one's determination) 10, be wound with primary coil (also claiming former limit winding) 11 and secondary coil (also claiming secondary winding) 12.When primary coil 11 passes through alternating current, in magnetic core 10, produce magnetic flux 15, this magnetic flux 15 makes secondary coil 12 produce induced currents.
Inductor (inductor) is a kind of when the electric current by closed-loop path changes, and can produce induced electromotive force and resist the electronic component that electric current changes.Refer to Fig. 2, this is a simple inductor, is wound with one group of coil 21 in a closed magnetic core 20.When coil 21 passes through alternating current, in magnetic core 20, produce magnetic flux 25.
Transformer and inductor have utilized respectively mutual inductance (mutual inductance) and self-induction (self-inductance) principle.They are very extensive as the application of basic electronic component, and some circuit can be used transformer and inductor simultaneously, both have certain volume, thereby need to occupy certain space, also need acquisition cost separately.
Utility model content
The application's technical problem to be solved is to provide a kind of novel electronic component, adopts the method that shares magnetic circuit that transformer and inductor are integrated.
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 comprised 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 output coil, is also wrapped on the newel of magnetic core;
---inductor coil, be wrapped on first lateral column and the second lateral column of magnetic core, be called first and the second portion of inductor coil; This two-part winding number of turn is identical, and winding direction is contrary.
Further, one end of inductor coil connects the centre cap of secondary coil, and the other end is externally drawn.
Further, all externally draw at the two ends of inductor coil.
Further, described magnetic core, annular magnetizer, newel or an en-block construction, or multi-blocked structure is spliced.
Further, one or more air gaps are set on magnetic core, to avoid magnetic core to produce magnetic saturation phenomenon or to control inductance value.
Further, described annular magnetizer is close-shaped, or on close-shaped magnetic conductor, be provided with one or more air gaps and form non-close-shaped.
The application makes transformer and inductor share magnetic core in an integrated morphology and non-interference has realized both decoupling zeros.This integrated morphology both can be used as transformer, also can be used as inductor and used, and also can work simultaneously, thereby reduce volume, reduced costs, and 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 are two kinds of structural representations of the magnetic core that adopts of the application;
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 output coil; 43 is inductor coil; 45 magnetic flux for transformer coil generation; 46 magnetic flux for inductor coil generation.
Embodiment
Refer to Fig. 3 a, this is a kind of structure of the magnetic core 30 that adopts of the application, a rectangle magnetic conductor and a newel 31, is consisted of.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 with respect 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 adopts of the application, a circular magnetic conductor and a newel 31, is consisted of.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 a circular lateral column of this circle magnetic conductor is divided into two semicircle lateral columns.Two semicircle lateral columns 35,36 of this circle magnetic conductor are symmetrically distributed with respect 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 meet " day " shaped magnetic core of following condition, all can be used for the application: this magnetic core is comprised 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, and " " font frame, newel is equivalent to centre one horizontal stroke of " day " shaped magnetic core to 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 on close-shaped magnetic conductor, be provided with one or more air gaps and form non-close-shaped, as long as can form closed magnetic circuit on this annular magnetizer.
Described magnetic core, annular magnetizer, newel can be all en-block constructions, can be also that multi-blocked structure is spliced.When being spliced by multi-blocked structure, the material of different structure can be identical or different.Example " day " shaped magnetic core as shown in Figure 3 a can be spliced by two E shaped magnetic cores, also can be spliced by an E shaped magnetic core and an I shaped magnetic core.
Refer to Fig. 4, this is the first embodiment of the integrated morphology of the application's transformer and inductor.On the newel 31 of magnetic core 30, be wound with primary coil 41 and secondary coil 42, insulation between two between magnetic core 30 and 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 the umber of turn that this centre cap is ordered to C point, D equates.On the first lateral column 35 of magnetic core 30 and the second lateral column 36, be wound with inductor coil 43, 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.Insulation between two between magnetic core 30 and inductor coil 43 and primary coil 41.Inductor coil 43 is wound around first, the second portion that part is called inductor coil 43 on the first lateral column 35, the second lateral column 36.It is identical that these two parts of inductor coil 43 are wound around the number of turn, and winding direction is contrary.
Refer to Fig. 4, the first of inductor coil 43, second portion winding direction refer on the contrary: suppose that E point is for the starting point of inductor coil 43, F point is terminal, from Fig. 4, observe from left to right so, inductor coil 43 is clockwise winding on the first lateral column 35, on the second lateral column 36, is counterclockwise winding.Change arbitrarily starting point, the terminal of 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. 3 b, on the first lateral column 35 of magnetic core 30, the second lateral column 36, respectively have an air gap 39, this is for fear of the magnetic saturation phenomenon exchanging under large-signal or direct current biasing, controls better inductance value.In fact, the quantity of air gap, position can change, and also air gap can be set.
When this first embodiment is used as transformer separately, the exit F point of inductor coil 43 is unsettled.Between the exit A point of primary coil 41, B point, apply alternating voltage, in primary coil 41, just passed through alternating current.This alternating current forms closed magnetic flux 45 on the newel 31 of magnetic core 30 and the first lateral column 35.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 only has transformer coil to produce on magnetic core 30 now.This magnetic flux 45 is through secondary coil 42, and just on secondary coil 42, mutual induction goes out electromotive force, thereby generates induced voltage between the exit C of secondary coil 42 point, D point.This magnetic flux 45 has also passed inductor coil 43, the first that is 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 second portion that is 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 first of inductor coil 43 is identical with the second portion number of turn, winding direction is contrary, thus the equal and opposite in direction of the first electromotive force and the second electromotive force, opposite direction, 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 is used 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.In inductor coil 43, pass into alternating current.This alternating current has formed closed magnetic flux 46 on the first lateral column 35 of magnetic core 30 and the second lateral column 36.The magnetic flux 46 that only has inductor coil to produce on magnetic core 30 now.This magnetic flux 46 self-induction on inductor coil 43 goes out electromotive force, thereby makes inductor coil 43 become an inductor.The First branch that is wrapped in the inductor coil 43 on the first lateral column 35 forms the first magnetic flux on the newel 31 of magnetic core 30, and the second portion that is 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 first of inductor coil 43 is identical with the second portion number of turn, winding direction is contrary, thereby the equal and opposite in direction of the first magnetic flux and the second magnetic flux, and opposite direction, finally cancels out each other, and making does not have magnetic flux on the newel 31 of magnetic core 30.The primary coil 41, the secondary coil 42 that are wrapped in so on newel 31 just can not induce electromotive force yet.
When this first embodiment is used as transformer and inductor, between the exit A point of primary coil 41, B point, apply alternating voltage simultaneously, between the exit C of secondary coil 42 point, D point, generate induced voltage.Between the exit E of inductor coil 43 point, F point, apply alternating voltage.On magnetic core 30 now, there is the magnetic flux 45 of transformer coil generation, the magnetic flux 46 that inductor coil produces simultaneously.With above separately as transformer, identical while using as inductor separately, 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 can not induce electromotive force on transformer 41 and secondary coil 42 yet.Realized the decoupling zero between transformer and inductor in this integrated morphology, both work and are independent of each other simultaneously.
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, while using as transformer and inductor simultaneously, the magnetic flux that the magnetic flux that the primary coil of transformer produces and the coil of inductor generate is independent of each other, and has realized the decoupling zero between transformer and inductor in this integrated morphology.
These are only the application's preferred embodiment, and be not used in restriction the application.For a person skilled in the art, the application can have various modifications and variations.All within the application's spirit and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in the application's protection range.
Claims (6)
1. an integrated morphology for transformer and inductor, is characterized in that, comprising:
---" day " font magnetic core, is comprised 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 output coil, is also wrapped on the newel of magnetic core;
---inductor coil, be wrapped on first lateral column and the second lateral column of magnetic core, be called first and the second portion 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, all externally draw at the two ends of inductor coil.
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, one or more air gaps are set on magnetic core, to avoid magnetic core to produce magnetic saturation phenomenon or to control 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 on close-shaped magnetic conductor, be provided with one or more air gaps and form non-close-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320883285.9U CN203760297U (en) | 2013-12-30 | 2013-12-30 | Integration structure of transformer and inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320883285.9U CN203760297U (en) | 2013-12-30 | 2013-12-30 | Integration structure of transformer and inductor |
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| Publication Number | Publication Date |
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| CN203760297U true CN203760297U (en) | 2014-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320883285.9U Expired - Lifetime CN203760297U (en) | 2013-12-30 | 2013-12-30 | Integration structure of transformer and inductor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104217847A (en) * | 2014-09-29 | 2014-12-17 | 福州大学 | Multi-magnetic core saturation resistor |
| CN104752045A (en) * | 2013-12-30 | 2015-07-01 | 联合汽车电子有限公司 | Transformer and inductor integrating structure and realization method thereof |
| CN104851574A (en) * | 2015-05-15 | 2015-08-19 | 广州金升阳科技有限公司 | Magnetic element and switch power supply based on magnetic element |
| CN105375739A (en) * | 2014-08-21 | 2016-03-02 | 振华电脑有限公司 | Combining method and combining structure of transformer and inductor |
| CN107887147A (en) * | 2017-12-26 | 2018-04-06 | 天津光电润达电子有限公司 | A kind of magnetic integrated transformer and processing method |
| CN114156041A (en) * | 2021-12-07 | 2022-03-08 | 捷蒽迪电子科技(上海)有限公司 | Magnetic core structure and magnetic element |
-
2013
- 2013-12-30 CN CN201320883285.9U patent/CN203760297U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104752045A (en) * | 2013-12-30 | 2015-07-01 | 联合汽车电子有限公司 | Transformer and inductor integrating structure and realization method thereof |
| CN105375739A (en) * | 2014-08-21 | 2016-03-02 | 振华电脑有限公司 | Combining method and combining structure of transformer and inductor |
| CN105375739B (en) * | 2014-08-21 | 2019-03-01 | 振华电脑有限公司 | The integration method and its construction of transformer and inductance |
| CN104217847A (en) * | 2014-09-29 | 2014-12-17 | 福州大学 | Multi-magnetic core saturation resistor |
| CN104217847B (en) * | 2014-09-29 | 2016-06-01 | 福州大学 | A kind of many magnetic cores transductor |
| CN104851574A (en) * | 2015-05-15 | 2015-08-19 | 广州金升阳科技有限公司 | Magnetic element and switch power supply based on magnetic element |
| CN107887147A (en) * | 2017-12-26 | 2018-04-06 | 天津光电润达电子有限公司 | A kind of magnetic integrated transformer and processing method |
| CN114156041A (en) * | 2021-12-07 | 2022-03-08 | 捷蒽迪电子科技(上海)有限公司 | Magnetic core structure and magnetic element |
| CN114156041B (en) * | 2021-12-07 | 2024-01-12 | 捷蒽迪电子科技(上海)有限公司 | Magnetic core structure and magnetic element |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Granted publication date: 20140806 |
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