CN104282422A - High-efficiency transformer - Google Patents
High-efficiency transformer Download PDFInfo
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- CN104282422A CN104282422A CN201310283720.9A CN201310283720A CN104282422A CN 104282422 A CN104282422 A CN 104282422A CN 201310283720 A CN201310283720 A CN 201310283720A CN 104282422 A CN104282422 A CN 104282422A
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Abstract
The invention relates to a high-efficiency transformer. The high-efficiency transformer comprises a wire frame, an iron core set arranged on the wire frame, a first winding and a second winding, wherein the first winding and the second winding are each provided with multiple wire turns arranged on the wire frame in a staggered mode, the wire turns of the second winding are composed of metal ring pieces, and selectively, the wire turns generating the skin effect easily are formed by overlapping two or more metal ring pieces. The utilization of electricity conduction materials of the second winding is improved, the skin effect and the proximity effect of the second winding are improved, and the magnetomotive force (MMF) is effectively reduced.
Description
Technical field
The present invention relates to a kind of transformer, particularly one is by changing around circle structure to improve kelvin effect, proximity effect can reduce magnetomotive high-efficiency potential transformer.
Background technology
A kind of known transformer is as shown in Figure 4, Figure 5, mainly on a coil holder 70, is provided with an iron core group 80, and this iron core group 80 is made up of two E shaped iron cores 81,82, and it is relatively clamped on coil holder 70; This coil holder 70 is provided with a first side winding 71 and a secondary side winding 72, this first side winding 71 has most around circle, mainly be wound around on coil holder 70 by copper cash and form, the secondary of this secondary side winding 72 is made up of an annular copper sheet respectively around circle 721 ~ 724.
Above-mentioned known transformer, mainly replaces the traditional copper wire of secondary side winding around circle, to promote its current carrying capacity by copper sheet.Although replace copper cash with copper sheet, " kelvin effect " that conventional wires is discussed (skin effect), proximity effect, the Transformer Winding that copper sheet is formed still exists:
So-called " kelvin effect " is that guide line is subject to self effect of eddy current when high frequency, current flowing scope is caused only to concentrate on conductor edge part, wire AC resistance is caused to increase, " proximity effect " is then when adjacent conductor is loaded with high-frequency ac current, between each adjacent wires except the magnetic field that self electric current produces, also be subject to the reciprocation that other wires institute produces magnetic field simultaneously, and cause adjacent wires and produce vortex flow, cause wire loss significantly to increase.The kelvin effect come along with any loop, even if the wire diameter changing coil also can not produce improve effect significantly.Main cause is: wire will be by producing magnetic field during electric current, this military order charged particle guiding line surface, magnetic field is pushed, therefore in a long straight conductor, electric current only can conduct in the region between surface to surperficial following certain depth, and the rising along with power frequency reduces by the region of simultaneously conducting.Thus in spiral loop construction, electric current will be pushed through outermost surface by center, and for the secondary side copper sheet of above-mentioned transformer for circle, the product side of the thickness of copper sheet and kelvin effect degree of depth under certain frequency is the effective coverage that electric current can pass through, thus wire diameter (thickness) anyway is increased, under electric current flows through the identical restriction in region, great help will not be had for motor current density.
Moreover the related specific magnetomotive force (MMF) on circle of secondary side winding that causes, except the impact of itself, raises by kelvin effect, proximity effect.As is commonly known, the product of magnetomotive force (MMF)=number of turn (N) and electric current (I), when electric current is by secondary side winding, by the impact because of kelvin effect, proximity effect, make current convergence specific on circle, cause current unevenness to flow through secondary side winding evenly, specific around circle then because current density is high and concentrated, cause its magnetomotive force to raise.Please refer to shown in Fig. 6, is each secondary of secondary side winding 72 magnetomotive force on circle 721 ~ 724 (MMF) situation, and due to high around the current density of circle 721,724 with the secondary of rearmost end foremost, thus its magnetomotive force (MMF) is also relatively high.
From the above, transformer will cause loss around the kelvin effect of circle, proximity effect, and magnetomotive raising will be caused.Therefore want to reduce magnetomotive force and around circle loss, must set about from solution kelvin effect, proximity effect.
Summary of the invention
Therefore main purpose of the present invention is: provide a kind of high-efficiency potential transformer, and it can effectively improve kelvin effect and proximity effect by changing around circle structure, and then reduces magnetomotive force, raises the efficiency with Loss reducing.
The technical way taked for reaching above-mentioned purpose is to provide a kind of high-efficiency potential transformer and comprises:
One coil holder, has multiple first around circle groove and multiple second around circle groove;
One first winding, has multiple first around circle, and described each first is located at each on described coil holder first around circle groove respectively around circle;
One second winding, has multiple second around circle, and described each second is located at each on described coil holder second around circle groove respectively around circle; Described second comprises a front end second around circle and a rear end second around circle in circle, described front end second around circle and/or described rear end second around circle be by two panels more than folded the establishing of metal ring plate in parallelly to form;
One iron core group, comprise one first iron core and one second iron core, first, second iron core described is folded on described coil holder relatively, and corresponds to first, second winding on described coil holder.
Preferably, described front end second establishes parallel connection to form by metal ring plate more than two panels is folded around circle and described rear end second around circle respectively, described front end second second has one first thickness around circle around circle and described rear end second around other of turn-to-turn, described front end second has one second thickness around circle and rear end second around circle, and wherein the second thickness is not more than first thickness of two times.
Preferably, the ratio of described second thickness and described first thickness is 1.2 ~ 0.8:1.
Preferably, the ratio of described second thickness and described first thickness is 1:1.
Preferably, described front end second is made up of folded the establishing of two panels metal ring plate around circle respectively around circle and described rear end second.
Preferably, described front end second is described second thickness of 1/2 around each metal ring plate thickness of circle around circle and described rear end second.
Preferably, described front end, rear end second are provided with an insulating barrier further around between each metal ring plate of circle.
Preferably, each on described coil holder first is respectively arrange around circle groove and second around circle groove.
Preferably, described first winding is first side winding, and described second winding is secondary side winding.
Preferably, described second winding is first side winding, and described first winding is secondary side winding.
Beneficial effect of the present invention is: aforementioned transformer is that make in the second winding specific is made up of metal ring plate more than two panels around circle, alleged specific around circle refer to easy generation current in the second winding concentrated around circle, front end second as the aforementioned around circle and/or rear end second around circle, make its by the above metal ring plate of two panels form second around circle, electric conducting material utilance can be improved significantly, and improve kelvin effect, proximity effect; Because the current density around circle reduces, also effectively magnetomotive force can be reduced.
Accompanying drawing explanation
Fig. 1 is the stereogram of a preferred embodiment of the present invention.
Fig. 2 is the exploded view of a preferred embodiment of the present invention.
Fig. 3 is the cutaway view of a preferred embodiment of the present invention.
Fig. 4 is the exploded view of existing transformer.
Fig. 5 is the cutaway view of existing transformer.
Fig. 6 is the magnetomotive force schematic diagram of each secondary of existing Circuit Fault on Secondary Transformer winding on circle.
Embodiment
With the following drawings and preferred embodiments of the present invention, the technological means that the present invention takes for reaching predetermined goal of the invention is set forth further.
About a preferred embodiment of the present invention, please refer to shown in Fig. 1, Fig. 2, it comprises coil holder 30,1 first winding 10,1 second winding 20 and an iron core group 40; Wherein:
In the present embodiment, this iron core group 40 is mainly made up of two relative E shaped iron cores 41,42, and it to be clamped on coil holder 30 and corresponding the first winding 10 and the second winding 20 on it relatively.
This coil holder 30 has multiple first around circle groove 31 and multiple second around circle groove 32, each first is respectively arrange around circle groove 31 and second around circle groove 32, in the present embodiment, this coil holder 30 has the cylindrical body of a hollow, the outer tube wall of this body is formed with most dividing plate 301, and first, second formation respectively between adjacent separator 301 is around circle groove 31,32, in the present embodiment, second is a flatter around circle groove 32, and runs through body barrel, to facilitate installing ring sheet around circle;
This first winding 10 has multiple first around circle 11, its be located at aforementioned coil holder 30 respectively each first in circle groove 31, in the present embodiment, first is that traditional coil type is around circle around circle 11; Common technique personnel for art are understandable that: this first also can be made up of metal ring plate around circle 11.
This second winding 20 also has multiple second around circle 21 ~ 24, and each second is be made up of more than one metal ring plate respectively around circle 21 ~ 24, and each second is be located at each on aforementioned coil holder 30 respectively second in circle groove 32 around circle 21 ~ 24; Described second comprises a front end second around circle 21 and a rear end second around circle 24 in circle 21 ~ 24, and this front end second around circle 24 around circle 21 and/or rear end second is established by metal ring plate more than two panels is folded and in parallelly forms respectively; In the present embodiment, this front end second around circle 24 around circle 21 and rear end second is established by metal ring plate more than two panels is folded and in parallelly forms respectively;
Please refer to shown in Fig. 3, in the present embodiment, be positioned at front end second and second around circle 22,23, there is one first thickness D1 respectively around circle 21 and rear end second around between circle 24, this front end, rear end second have one second thickness D2 around circle 21,24, wherein the second thickness D2 is not more than the first thickness D1 of two times, and wherein the ratio of the second thickness D2 and the first thickness D1 can be 1.2 ~ 0.8:1; In the present embodiment, the ratio of the second thickness D2 and the first thickness D1 can be 1:1.Formation is established by two panels metal ring plate 211,212,241,242 is folded respectively around circle 21,24 in this front end, rear end second, and the thickness of each metal ring plate is 1/2D2, and the second thickness D2 equals the first thickness D1.In like manner, when front end, rear end second around circle 21,24 respectively by three-piece metal ring plate folded establish form time, the thickness of each metal ring plate is 1/3D2.And front end, rear end second can be provided with an insulating barrier further around between each metal ring plate 211,212,241,242 of circle 21,24.
Aforementioned first winding 10 can be first side winding or secondary side winding, and the second winding 20 can be secondary side winding or first side winding relatively.Make the first winding 10 be first side winding in the present embodiment, second winding 20 is time side winding, secondary side winding is greater than around the number of turn due to first side winding, therefore step-down transformer, its secondary side winding is low voltage and high current, therefore easily on circle 24, produce higher current density around circle 21 and rear end second in front end second, and then improve magnetomotive force.
And the present invention makes the front end second of the second winding 20 establish and parallel connection is formed by metal ring plate more than two panels is folded respectively around circle 24 around circle 21 and rear end second, it is mainly the electric conducting material utilance of raising second winding 20, to improve kelvin effect, Loss reducing, and the impact reducing proximity effect.Due to the improvement of kelvin effect, solve front end second around circle 21, rear end second problem that current density is high and concentrated on circle 24, thus can reduce magnetic effect further, thus improve the operational paradigm of transformer.
From the above, the present invention mainly on the second winding of a transformer selectivity its front end second in parallelly to be formed with folded the establishing of metal ring plate more than two panels around circle around circle and rear end second, effectively can improve the electric conducting material utilance of the second winding in this situation, not only improve kelvin effect and proximity effect, also solve the high and concentrated problem of current density simultaneously, therefore reduced magnetomotive force further, and relatively improve the operational paradigm of transformer.
The above is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention, any those skilled in the art, not departing from the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solution of the present invention, according to any simple modification that technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of the claims in the present invention.
Claims (10)
1. a high-efficiency potential transformer, is characterized in that, comprising:
One coil holder, has multiple first around circle groove and multiple second around circle groove;
One first winding, has multiple first around circle, and described each first is located at each on described coil holder first around circle groove respectively around circle;
One second winding, has multiple second around circle, and described each second is located at each on described coil holder second around circle groove respectively around circle; Described second comprises a front end second around circle and a rear end second around circle in circle, described front end second around circle and/or described rear end second around circle be by two panels more than folded the establishing of metal ring plate in parallelly to form;
One iron core group, comprise one first iron core and one second iron core, first, second iron core described is folded on described coil holder relatively, and corresponds to first, second winding on described coil holder.
2. high-efficiency potential transformer according to claim 1, it is characterized in that, described front end second establishes parallel connection to form by metal ring plate more than two panels is folded around circle and described rear end second around circle respectively, described front end second second has one first thickness around circle around circle and described rear end second around other of turn-to-turn, described front end second has one second thickness around circle and rear end second around circle, and wherein the second thickness is not more than first thickness of two times.
3. high-efficiency potential transformer according to claim 2, is characterized in that, the ratio of described second thickness and described first thickness is 1.2 ~ 0.8:1.
4. high-efficiency potential transformer according to claim 3, is characterized in that, the ratio of described second thickness and described first thickness is 1:1.
5. high-efficiency potential transformer according to claim 4, is characterized in that, described front end second is made up of folded the establishing of two panels metal ring plate around circle respectively around circle and described rear end second.
6. high-efficiency potential transformer according to claim 5, is characterized in that, described front end second is described second thickness of 1/2 around each metal ring plate thickness of circle around circle and described rear end second.
7. high-efficiency potential transformer according to claim 1, is characterized in that, described front end, rear end second are provided with an insulating barrier further around between each metal ring plate of circle.
8. high-efficiency potential transformer according to claim 1, is characterized in that, each on described coil holder first is respectively arrange around circle groove and second around circle groove.
9. high-efficiency potential transformer according to any one of claim 1 to 8, is characterized in that, described first winding is first side winding, and described second winding is secondary side winding.
10. high-efficiency potential transformer according to any one of claim 1 to 8, is characterized in that, described second winding is first side winding, and described first winding is secondary side winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310283720.9A CN104282422A (en) | 2013-07-08 | 2013-07-08 | High-efficiency transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310283720.9A CN104282422A (en) | 2013-07-08 | 2013-07-08 | High-efficiency transformer |
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| Publication Number | Publication Date |
|---|---|
| CN104282422A true CN104282422A (en) | 2015-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310283720.9A Pending CN104282422A (en) | 2013-07-08 | 2013-07-08 | High-efficiency transformer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105869828A (en) * | 2015-01-22 | 2016-08-17 | 台达电子工业股份有限公司 | Magnetic element |
| CN113439315A (en) * | 2019-01-30 | 2021-09-24 | Lg 伊诺特有限公司 | Transformer device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62219605A (en) * | 1986-03-20 | 1987-09-26 | Matsushita Electric Ind Co Ltd | High-frequency transformer |
| TW200945381A (en) * | 2008-04-18 | 2009-11-01 | Delta Electronics Inc | Conductive structure and transformer using same |
| CN102610378A (en) * | 2012-02-07 | 2012-07-25 | 深圳麦格米特电气股份有限公司 | Flat transformer for switching power supply |
| CN102779628A (en) * | 2011-05-11 | 2012-11-14 | 台达电子工业股份有限公司 | Transformer |
| CN202650809U (en) * | 2012-05-24 | 2013-01-02 | 耀胜电子股份有限公司 | Combined transformer structure |
-
2013
- 2013-07-08 CN CN201310283720.9A patent/CN104282422A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62219605A (en) * | 1986-03-20 | 1987-09-26 | Matsushita Electric Ind Co Ltd | High-frequency transformer |
| TW200945381A (en) * | 2008-04-18 | 2009-11-01 | Delta Electronics Inc | Conductive structure and transformer using same |
| CN102779628A (en) * | 2011-05-11 | 2012-11-14 | 台达电子工业股份有限公司 | Transformer |
| CN102610378A (en) * | 2012-02-07 | 2012-07-25 | 深圳麦格米特电气股份有限公司 | Flat transformer for switching power supply |
| CN202650809U (en) * | 2012-05-24 | 2013-01-02 | 耀胜电子股份有限公司 | Combined transformer structure |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105869828A (en) * | 2015-01-22 | 2016-08-17 | 台达电子工业股份有限公司 | Magnetic element |
| TWI611440B (en) * | 2015-01-22 | 2018-01-11 | 台達電子工業股份有限公司 | Magnetic element |
| US10068696B2 (en) | 2015-01-22 | 2018-09-04 | Delta Electronics, Inc. | Magnetic device |
| CN105869828B (en) * | 2015-01-22 | 2018-10-09 | 台达电子工业股份有限公司 | Magnetic element |
| CN113439315A (en) * | 2019-01-30 | 2021-09-24 | Lg 伊诺特有限公司 | Transformer device |
| EP3920199A4 (en) * | 2019-01-30 | 2022-11-23 | LG Innotek Co., Ltd. | Transformer |
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Application publication date: 20150114 |