EP2680282A1 - Transformator - Google Patents

Transformator Download PDF

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Publication number
EP2680282A1
EP2680282A1 EP12275147.2A EP12275147A EP2680282A1 EP 2680282 A1 EP2680282 A1 EP 2680282A1 EP 12275147 A EP12275147 A EP 12275147A EP 2680282 A1 EP2680282 A1 EP 2680282A1
Authority
EP
European Patent Office
Prior art keywords
bobbin
transformer
coupling unit
grooves
protrusions
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Withdrawn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
EP12275147.2A
Other languages
English (en)
French (fr)
Inventor
Soon Young Kwon
Duck Jin An
Ki Hung Nam
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.)
Samsung Electro Mechanics Co Ltd
Original Assignee
Samsung Electro Mechanics Co Ltd
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 Samsung Electro Mechanics Co Ltd filed Critical Samsung Electro Mechanics Co Ltd
Publication of EP2680282A1 publication Critical patent/EP2680282A1/de
Withdrawn legal-status Critical Current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
    • H01F27/29—Terminals; Tapping arrangements for signal inductances
    • H01F27/292—Surface mounted devices
    • 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
    • H01F27/29—Terminals; Tapping arrangements for signal inductances
    • 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
    • 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
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • H01F27/325—Coil bobbins
    • 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
    • H01F27/29—Terminals; Tapping arrangements for signal inductances
    • H01F2027/297—Terminals; Tapping arrangements for signal inductances with pin-like terminal to be inserted in hole of printed path

Definitions

  • the present invention relates to a transformer, and more particularly, to a transformer in which an insulation distance may be easily adjusted.
  • the electronic apparatus includes a transformer for reducing a relatively high external voltage to a voltage appropriate for use in the electronic apparatus.
  • the transformer may include pin members formed at both ends of a bobbin, wherein the pin members have coils wound therearound.
  • the pin member formed at one end of the bobbin and the pin member formed at the other end of the bobbin should have a predetermined distance maintained therebetween in order to secure an insulation distance between a primary coil and a secondary coil.
  • Patent Document 1 discloses a transformer having two insulation distances
  • Patent Document 2 discloses a transformer having a plurality of terminal strands 2-2, 2-3, 4-1, and 4-2.
  • Patent Document 1 various changes to the insulation distance are impossible, and in Patent Document 2, since the transformer simply includes a plurality of leads 2-4, various insulation distances according to a type of electronic apparatus may not be provided.
  • An aspect of the present invention provides a transformer in which various insulation distances may be provided according to a type of electronic apparatus.
  • a transformer including: a bobbin having at least one first coupling unit formed at one end thereof; a first assembling member having a second coupling unit formed to be selectively coupled to the first coupling unit; a first pin member formed on the assembling member; and a second pin member formed at the other end of the bobbin.
  • the bobbin may have a cut part formed in one end thereof, wherein the cut part has the assembling member fitted thereinto.
  • the first coupling unit may be first protrusions and first grooves repeatedly formed in a lengthwise manner in the cut part
  • the second coupling unit may be second grooves and second protrusions to be fitted into the first protrusions and the first grooves, respectively.
  • the second grooves and the second protrusions may be elongatedly formed along a circumference of the assembling member.
  • the first coupling unit may be first protrusions and first grooves repeatedly formed in a lengthwise manner in the bobbin, and the second coupling unit may be second grooves and second protrusions to be fitted into the first protrusions and the first grooves, respectively.
  • the first assembling member may be provided with a fitting groove into which one end of the bobbin is fitted.
  • the first coupling unit may be first protrusions and first grooves repeatedly formed on one surface or both surfaces of the bobbin in a lengthwise manner in the bobbin
  • the second coupling unit may be second grooves and second protrusions formed on an inner surface of the fitting groove and fitted into the first protrusions and the first grooves, respectively.
  • the first coupling unit may be a receiving groove formed in one end of the bobbin and receiving a portion of the assembling member therein, and the second coupling unit may be a protrusion piece inserted into the receiving groove.
  • the receiving groove and the protrusion piece may be provided to have a concave part and a convex part.
  • the transformer may further include a third pin member formed at the other end of the bobbin.
  • the bobbin may further include a first coupling unit formed at the other end thereof and a second coupling unit coupled to the first coupling unit formed at the other end of the bobbin, and the second pin member may be formed on the second assembling unit.
  • the bobbin may have cut parts formed at one end thereof and the other end thereof, respectively, and the cut parts may have the first and second assembling members fitted thereinto, respectively.
  • the first coupling unit may be receiving grooves formed in one end and the other end of the bobbin, respectively receiving a portion of the first assembling member and a portion of the second assembling member therein, and the second coupling unit may be a protrusion piece inserted into the receiving groove.
  • Insulation distances of transformers used in electronic apparatuses may be different according to a type of electronic apparatus.
  • Deviations in the insulation distances according to the type of electronic apparatus may be generally several mm to several tens mm.
  • stability of the transformer may be deteriorated.
  • an insulation distance larger than a required insulation distance is secured, a size of the transformer becomes unnecessarily large.
  • the present invention is characterized in that a bobbin is configured of two or more members so that an insulation distance may be easily adjusted according to a type of electronic apparatus.
  • a coupling position between members is adjusted, whereby a distance (that is, an insulation distance) between first and second pin members may be easily changed.
  • FIG. 1 is an exploded perspective view of main parts of a transformer according to a first embodiment of the present invention
  • FIGS. 2 and 3 are views illustrating a coupled state between a bobbin and an assembling member shown in FIG. 1
  • FIG. 4 is an exploded perspective view of main parts of a transformer according to a second embodiment of the present invention
  • FIGS. 5 and 6 are side views illustrating various coupled states between a bobbin and an assembling member shown in FIG. 4
  • FIG. 7 is an exploded perspective view of main parts of a transformer according to a third embodiment of the present invention
  • FIG. 8 is a cross-sectional view illustrating a coupled state between a bobbin and an assembling member shown in FIG. 7
  • FIG. 9 is an exploded perspective view of main parts of a transformer according to a fourth embodiment of the present invention
  • FIG. 10 is a cross-sectional view illustrating a coupled state between a bobbin and an assembling member shown in FIG. 9
  • FIG. 11 is an exploded perspective view of main parts of a transformer according to a fifth embodiment of the present invention
  • FIG. 12 is an assembled perspective view of main parts of a transformer according to a sixth embodiment of the present invention
  • FIG. 13 is an exploded perspective view of main parts of a transformer according to a seventh embodiment of the present invention
  • FIGS. 14 and 15 are views illustrating various coupled states between a bobbin and an assembling member shown in FIG. 13 .
  • the transformer according to the first embodiment of the present invention will be described with reference to FIGS. 1 through 3 .
  • the transformer 100 may include a bobbin 10, an assembling member 20, a first pin member 40, and a second pin member 50.
  • the transformer 100 may further include a core (not shown) mounted in the bobbin 10 and a coil (not shown) wound around the bobbin 10.
  • the coil may be classified into a primary coil portion and a secondary coil portion. Voltages having different magnitudes may be applied to the primary and secondary coil portions, respectively.
  • the bobbin 10 may have pin members 40, 42, and 50 coupled to both ends thereof. More specifically, the bobbin 10 may have the first pin members 40 and 42 coupled to one end 12 thereof and the second pin member 50 coupled to the other end 14 thereof.
  • first protrusion 70 and the first groove 72 described in the present embodiment may be a first coupling unit described in the claims and the second protrusion 80 and the second groove 82 described in the present embodiment may be a second coupling unit described in the claims.
  • the first pin members 40 and 42 may be formed at one end 12 of the bobbin 10 and the assembling member 20, respectively, and the second pin member 50 may be formed at the other end 14 of the bobbin 10.
  • a distal end portion of the primary coil may be fixed to the first pin members 40 and 42 and a distal end portion of the secondary coil may be fixed to the second pin member 50. Therefore, the primary and secondary coil portions may have an insulation distance maintained therebetween by a distance between the first pin members 40 and 42 and the second pin member 50.
  • the transformer 100 according to the second embodiment of the present invention may be different in terms of a shape of an assembling member 20 from the transformer 100 according to the first embodiment of the present invention. That is, the assembling member 20 according to the second embodiment of the present invention may be different from the assembling member 20 according to the first embodiment of the present invention in that second protrusions 80 and second grooves 82 may be formed along a circumference (in a Y-Z plane direction) thereof.
  • a coupling position of the assembling member 20 may be changed in both of a length direction (an X axis direction based on FIG. 4 ) of the bobbin 10 and a height direction (a Z axis direction of FIG. 4 ) of the bobbin 10.
  • first protrusions 70 and first grooves 72 which are the first coupling unit may be formed on and in a lower surface of one end 12 of the bobbin 10
  • second protrusions 80 and second grooves 82 which are the second coupling unit may be formed on and in an upper surface of the assembling member 20.
  • the coupling position of the assembling member 20 may easily be changed.
  • first groove 72 and the second protrusion 80 have the semi-circular cross section (See FIG. 10 ), a position at which the assembling member 20 is coupled to the bobbin 10 may be significantly easily changed.
  • the transformer 100 according to the fifth embodiment of the present invention may be different in a coupled structure between a bobbin 10 and an assembling member 20 from the transformer 100 according to the embodiments of the present invention described above. More specifically, in the transformer 100 according to the present embodiment, first and second coupling units may have shapes other than a protrusion and a groove.
  • the first coupling unit may be a receiving groove 18 formed in one end 12 of the bobbin 10 and the second coupling unit may be a protrusion piece 24 elongatedly formed at one end of the assembling member 20.
  • the insulation distance between the first pin member 40 and the second pin member 50 may be more precisely adjusted.
  • the transformer according to the sixth embodiment of the present invention will be described with reference to FIG. 12 .
  • the transformer 100 according to the sixth embodiment of the present invention may be different in terms of a shape of a bobbin 10 from the transformer 100 according to the embodiments of the present invention described above. More specifically, the bobbin 10 according to the sixth embodiment of the present invention may include a cut part 142 formed at the other end 14 thereof, wherein the cut part 142 may have a third pin member 60 coupled thereto.
  • various insulation distances L1, L2, L3, and L4 may be provided.
  • a first insulation distance L1 formed by the first pin member 42 and the second pin member 50, a second insulation distance L2 formed by the first pin member 40 and the second pin member 50, a third insulation distance L3 formed by the first pin member 42 and the third pin member 60, and a fourth insulation distance L4 formed by the first pin member 40 and the third pin member 60 may be provided.
  • the transformer 100 according to the present embodiment may be widely used regardless of a type and a size of electronic apparatus.
  • the transformer according to the seventh embodiment of the present invention will be described with reference to FIGS. 13 through 15 .
  • the transformer 100 according to the seventh embodiment of the present invention may be different from the transformer 100 according to the embodiments of the present invention described above in that it includes two assembling members 20 and 30.
  • pin members 40 are provided at the assembling member 20
  • all pin members 40 and 42 may be provided at the assembling member 20 as needed.
  • the insulation distance between the pin members may be easily changed according to a type of electronic apparatus.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Coils Or Transformers For Communication (AREA)
EP12275147.2A 2012-06-29 2012-09-21 Transformator Withdrawn EP2680282A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120070529A KR101388830B1 (ko) 2012-06-29 2012-06-29 변압기

Publications (1)

Publication Number Publication Date
EP2680282A1 true EP2680282A1 (de) 2014-01-01

Family

ID=47080384

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12275147.2A Withdrawn EP2680282A1 (de) 2012-06-29 2012-09-21 Transformator

Country Status (3)

Country Link
EP (1) EP2680282A1 (de)
KR (1) KR101388830B1 (de)
CN (2) CN103515064B (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101388830B1 (ko) * 2012-06-29 2014-04-23 삼성전기주식회사 변압기
CN104332291B (zh) * 2014-08-28 2016-08-17 合肥市菲力克斯电子科技有限公司 针脚高度可调的变压器骨架

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60260115A (ja) * 1984-06-07 1985-12-23 Matsushita Electric Ind Co Ltd 変成器
JPS61172318A (ja) * 1985-01-28 1986-08-04 Matsushita Electric Ind Co Ltd 変成器
US5200731A (en) * 1990-01-26 1993-04-06 Musashino Tuko Co., Ltd. Double insulated transformer of the coaxial type and method of assembling the same
JPH06120047A (ja) 1992-10-02 1994-04-28 Shindengen Electric Mfg Co Ltd トランス及びその製造方法
US20030030531A1 (en) * 2001-08-08 2003-02-13 Tamura Corporation Coil bobbin
KR20050021683A (ko) 2003-08-25 2005-03-07 주식회사 대우일렉트로닉스 트랜스포머

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2668545B2 (ja) * 1988-04-26 1997-10-27 株式会社キジマ 電気巻線部品
JPH09180945A (ja) * 1995-12-22 1997-07-11 Tokin Corp ピン端子付ボビン及びそれを用いた電子部品
JPH10106851A (ja) * 1996-09-27 1998-04-24 Tokin Corp インダクタ
KR200185139Y1 (ko) 1999-12-28 2000-06-15 용인전자주식회사 결합형 보빈
CN201378502Y (zh) * 2009-02-26 2010-01-06 刘清伟 一种安规变压器骨架
EP2402964B1 (de) * 2010-07-02 2018-12-26 Solum Co., Ltd. Transformator und diesen enthaltender Flachbildschirm
KR101388830B1 (ko) * 2012-06-29 2014-04-23 삼성전기주식회사 변압기

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60260115A (ja) * 1984-06-07 1985-12-23 Matsushita Electric Ind Co Ltd 変成器
JPS61172318A (ja) * 1985-01-28 1986-08-04 Matsushita Electric Ind Co Ltd 変成器
US5200731A (en) * 1990-01-26 1993-04-06 Musashino Tuko Co., Ltd. Double insulated transformer of the coaxial type and method of assembling the same
JPH06120047A (ja) 1992-10-02 1994-04-28 Shindengen Electric Mfg Co Ltd トランス及びその製造方法
US20030030531A1 (en) * 2001-08-08 2003-02-13 Tamura Corporation Coil bobbin
KR20050021683A (ko) 2003-08-25 2005-03-07 주식회사 대우일렉트로닉스 트랜스포머

Also Published As

Publication number Publication date
CN202871506U (zh) 2013-04-10
KR20140003058A (ko) 2014-01-09
CN103515064A (zh) 2014-01-15
CN103515064B (zh) 2016-08-17
KR101388830B1 (ko) 2014-04-23

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