EP2003660A1 - Transformateur et son procédé d'enroulement de la bobine - Google Patents

Transformateur et son procédé d'enroulement de la bobine Download PDF

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Publication number
EP2003660A1
EP2003660A1 EP08101768A EP08101768A EP2003660A1 EP 2003660 A1 EP2003660 A1 EP 2003660A1 EP 08101768 A EP08101768 A EP 08101768A EP 08101768 A EP08101768 A EP 08101768A EP 2003660 A1 EP2003660 A1 EP 2003660A1
Authority
EP
European Patent Office
Prior art keywords
coil
winding
core
layer
wound
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP08101768A
Other languages
German (de)
English (en)
Inventor
Man-Sheng Yang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Delta Electronics Inc
Original Assignee
Delta Electronics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Delta Electronics Inc filed Critical Delta Electronics Inc
Publication of EP2003660A1 publication Critical patent/EP2003660A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2823—Wires
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • H01F41/064—Winding non-flat conductive wires, e.g. rods, cables or cords
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • H01F41/082—Devices for guiding or positioning the winding material on the former
    • H01F41/086—Devices for guiding or positioning the winding material on the former in a special configuration on the former, e.g. orthocyclic coils or open mesh coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2823—Wires
    • H01F2027/2842—Wire coils wound in conical zigzag to reduce voltage between winding turns
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/006—Details of transformers or inductances, in general with special arrangement or spacing of turns of the winding(s), e.g. to produce desired self-resonance

Definitions

  • the invention relates to a transformer and a coil winding method thereof, and more particularly to a transformer and a coil winding method utilized to increase efficiency and reduce volume thereof.
  • ratio of winding of a primary winding and a secondary winding must be increased, i.e., the amount of the winding in the secondary winding must be increased.
  • power jump occurs at the beginning and distal ends of the winding.
  • a conventional transformer 1 is designed to overcome the above-mentioned power jump or voltage jump.
  • the transformer 1 includes a core 10, a plurality of blocking walls 11 spaced at intervals on the core 10, a primary winding 12, and a secondary winding 13.
  • One of the blocking walls 11 is utilized to separate the primary winding 12 from the secondary winding 13, and the secondary winding 13 is divided into several slots by the blocking walls 11. Because the amount of the windings in a single slot is few, power jump can be prevented.
  • An object of the invention is to provide a transformer and a coil winding method for increasing efficiency and reducing volume thereof.
  • the transformer of the invention includes a core includes a core including a first end and a second end; and a first coil wound around the core by forward winding the first coil from the first end of the core toward the second end of the core as a first layer, backward winding the first coil above the first layer toward the first end of the core from a position near a stop point of the first layer and repeatedly performing the forward and backward winding to form a first right-triangle area; winding the first coil along a slanted surface of the first right-triangle; and winding the first coil by a winding way opposite to that of the first right-triangle area.
  • the invention further provides a coil winding method for forming a coil on a core with a first end and a second end.
  • a coil winding method for forming a coil on a core with a first end and a second end includes the steps of: forward winding the first coil from the first end of the core toward the second end of the core as a first layer, backward winding the first coil above the first layer toward the first end of the core from a position near a stop point of the first layer and repeatedly performing the forward and backward winding to form a first right-triangle area; winding the first coil along a slanted surface of the first right-triangle; and winding the first coil by a winding way opposite to that of the first right-triangle area.
  • the circle number of each of the circles is surrounded by circles with adjacent circle numbers. Therefore, the power jump can be prevented. Furthermore, the blocking walls noted in the conventional transformer can be omitted. Further, the first and second right-triangle areas of the transformer of the invention provide a higher efficiency than the conventional one, and, thus, costs and volume of the transformer can be reduced.
  • Fig. 1 is a cross sectional view of a conventional transformer
  • Fig. 2 is a cross sectional view of a transformer of an embodiment of the invention.
  • Fig. 3 is a schematic view showing steps of a winding method of the transformer of Fig. 2 .
  • Fig. 2 is a cross sectional view of a transformer 2 of an embodiment
  • Fig. 3 is a schematic view showing steps of a winding method of the transformer 2 of Fig. 2 .
  • the transformer 2 of the embodiment includes a core 20 having a first end 201 and a second end 202, a first coil 21 wound around the core 20, a second coil 23 wound outside the first coil 21, a first insulating layer 22 disposed between the first and second coils 21 and 23, and a second insulating layer 24 disposed outside the second coil 23.
  • the second coil 23 is a primary coil and the first coil 21 is a secondary coil. Note that the installation of the second insulating layer 24 is optional.
  • the core 20 is a single slot wound core.
  • the first coil 21 wound on the core 20 is sequentially formed by a first right-triangle area A1, a plurality of ramp areas A2, and a second right-triangle area A3.
  • the first right-triangle area A1 formed by a set of layers providing a slanted surface a100 and an external layer L5 is wound by the following steps.
  • a first layer L1 of the set of layers is a front layer wound in parallel along a first direction D1 along the first end 201 to the second end 202 of the core 20.
  • a second layer L2 a next layer subsequent to the first layer L1, is wound and bent at a beginning wound position (i.e. the position of the circle No.6) selected from a region near an end wound position (i.e. the position of the circle No.5) of the first layer L1 (previous layer), above the circle No.
  • the rest layers of the set of layers i.e., a third layer 3 and a fourth layer L4, and the slanted surface a100 are outwardly formed by repeating the winding sequence of the first and second layers L1 and L2.
  • the first coil 21 in the ramp areas A2 are wound back and forth along the slanted surface a100 of the first right-triangle area A1.
  • a residual region is formed between the ramp areas A2 and the core 20.
  • the first coil 21 in the second right-triangle area A3 is inwardly wound opposite to the winding sequence of the first right-triangle area A1 to form the residual region.
  • a first coil 21 is wound around the core 20 by forward winding the first coil 21 from the first end 201 of the core 20 toward the second end 202 of the core 20 as the first layer L1, backward winding the first coil 21 above the first layer L1 toward the first end 201 of the core 20 from a position near a stop point of the first layer L1 and repeatedly performing the forward and backward winding to form a first right-triangle area A1. Then, the winding of the first coil 21 along the slanted surface of the first right-triangle area A1 starts from repeatedly forward winding toward the second end 202 of the core 20 and then backward winding toward the first end 201 of the core 20. Then, the first coil 21 is wound by a winding way opposite to that of the first right-triangle area A1.
  • the first coil 21 is predetermined to be formed with five layers L1-L5.
  • the first right-triangle area A1 is formed from a 1 st circle (No.1) to 15 th circle (No.15).
  • the ramp areas A2 are formed from a 16 th circle (No.16) to 70 th circle (No.70).
  • the second right-triangle area A3 is formed from a 71 st circle (No.71) to 85 th circle (No.85).
  • the first layer L1 of the first right-triangle area A1 is wound by five circles, including the 1 st circle (No.1) to the 5 th circle (No.5) in parallel.
  • the second layer L2 of the first right-triangle area A1 is wound by four circles, including the 6 th circle (No.6) to the 9 th circle (No.9) in parallel and toward the first end 201 of the core 20, wherein the 6 th circle (No.6) is located on the 4 th circle (No.4).
  • the third layer L3 of the first right-triangle area A1 is wound by three circles, including the 10 th circle (No.10) to the 12 th circle (No.12) in parallel and toward the second end 202 of the core 20, wherein the 10 th circle (No.10) is located on the 9 th circle (No.9).
  • the fourth layer L4 of the first right-triangle area A1 is wound by two circles, including the 13 th circle (No.13) to the 14 th circle (No.14) in parallel and toward the first end 201 of the core 20, wherein the 13 th circle (No.13) is located on the 11 th circle (No.11).
  • the fifth layer L5 of the first right-triangle area A1 is wound by one circle, i.e., the 15 th circle (No.15) in parallel and located on the 14 th circle (No.14).
  • the first right-triangle area A1 is formed.
  • the ramp areas A2 include eleven ramp areas, from a 1 st ramp area R1 to 11 th ramp area R11.
  • the first ramp area R1 is formed from the 16 th circle (No.16) to the 20 th circle (No.20)
  • the second ramp area R2 is formed from the 21 st circle (No.21) to the 25 th circle (No.25).
  • the position of the circle No.20 is defined as an end wound position of the first ramp area R1
  • the position of the circle No.21 selected near the end wound position (the position of the circle No.20 of the first ramp area R1) is defined as a beginning wound position of the second ramp area R2.
  • the winding direction of the second ramp area R2 is opposite to that of the first ramp area R1.
  • the first ramp area R1 to the 11 th ramp area R11 along the slanted surface a100 of the first right-triangle area A1 is formed inward to outward, thus forming the ramp areas A2.
  • the second right-triangle area A3 formed from a 71 st circle (No.71) to 85 th circle (No.85) is an inverse right-triangle area or a residual region formed between the ramp areas A2 and the second end 202 of the core 20.
  • the second right-triangle area A3 is formed.
  • the ramp areas A2 of the embodiment wound next to the 5 th circle (No.5), turned back and forth for eleven times, results in the same effect as the conventional core.
  • the first right-triangle area A1 and the second right-triangle area A3 are equilibrium to two slots.
  • the voltage converting rate of the embodiment is superior to the conventional slotted transformer, and at least 30 percent of volume can be reduced.
  • the circle number of each of the circles is surrounded by circles with adjacent circle numbers. Therefore, the power jump can be prevented.
  • the blocking walls noted in the conventional transformer can be omitted.
  • a transformer (2) including a core (20), a primary coil (23) and a secondary coil (21).
  • the secondary coil (21) is formed by a first right-triangle area (A1), ramp areas (R1, R2...R11) and a second right-triangle area (A2).
  • the first right-triangle area (A1) is formed by a set of layers providing a slanted surface (a100) and outwardly wound by continuous bending.
  • a first layer (L1) of the set of layers is wound to be formed with an end wound position.
  • a second layer (L2) subsequent to the first layer (L1) is wound to be started at a beginning wound position where is bent near the end wound position of the first layer (L1).
  • the rest layers (L3, L4, L5) of the set of layers are outwardly formed by repeating the winding sequence of the first and second layers.
  • the ramp areas (R1, R2...R11) are wound along the slanted surface (a100), and the second right-triangle area (A2) is inwardly wound opposite to the winding sequence of the first right-triangle area (A1).

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Coils Of Transformers For General Uses (AREA)
EP08101768A 2007-06-15 2008-02-19 Transformateur et son procédé d'enroulement de la bobine Withdrawn EP2003660A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2007101118265A CN101325120A (zh) 2007-06-15 2007-06-15 变压器及其线圈绕线方法

Publications (1)

Publication Number Publication Date
EP2003660A1 true EP2003660A1 (fr) 2008-12-17

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Family Applications (1)

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EP08101768A Withdrawn EP2003660A1 (fr) 2007-06-15 2008-02-19 Transformateur et son procédé d'enroulement de la bobine

Country Status (2)

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EP (1) EP2003660A1 (fr)
CN (1) CN101325120A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2533257A1 (fr) * 2011-06-09 2012-12-12 ABB Technology AG Enroulement de transformateur
EP2312595A3 (fr) * 2009-10-16 2013-04-24 Sumida Corporation Bobine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR112014007475B8 (pt) * 2011-09-30 2023-04-25 Siemens Ag Método de montagem de trasnsformador elétrico
CN105761926B (zh) * 2016-02-29 2017-08-25 无锡南理工科技发展有限公司 一种线圈制备方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0473910A (ja) * 1990-07-16 1992-03-09 Kijima:Kk 小形トランス
JPH0935954A (ja) * 1995-07-14 1997-02-07 Kijima:Kk 小形電気巻線部品

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0473910A (ja) * 1990-07-16 1992-03-09 Kijima:Kk 小形トランス
JPH0935954A (ja) * 1995-07-14 1997-02-07 Kijima:Kk 小形電気巻線部品

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2312595A3 (fr) * 2009-10-16 2013-04-24 Sumida Corporation Bobine
EP2533257A1 (fr) * 2011-06-09 2012-12-12 ABB Technology AG Enroulement de transformateur

Also Published As

Publication number Publication date
CN101325120A (zh) 2008-12-17

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