KR100578040B1 - Trigger Coil - Google Patents

Trigger Coil Download PDF

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KR100578040B1
KR100578040B1 KR1020040117113A KR20040117113A KR100578040B1 KR 100578040 B1 KR100578040 B1 KR 100578040B1 KR 1020040117113 A KR1020040117113 A KR 1020040117113A KR 20040117113 A KR20040117113 A KR 20040117113A KR 100578040 B1 KR100578040 B1 KR 100578040B1
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South Korea
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winding
core
trigger coil
coil
present
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KR1020040117113A
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Korean (ko)
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KR20050007280A (en
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김용운
최영욱
박우철
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주식회사 유니온
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    • 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
    • H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • 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
    • H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
    • 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
    • H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • H01F27/306—Fastening or mounting coils or windings on core, casing or other support
    • 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
    • H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
    • H01F2027/065—Mounting on printed circuit boards

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

본 발명은 트리거 코일에 관한 것으로서, 좀 더 상세하게는 PCB기판과 트리거 코일을 SMD(Surface Mounted Device : 표면장착장치 - 이하 'SMD'라 한다) 결합을 하기 위해서는 트리거 코일의 코어 양측에 보빈을 구비하고, 보빈에 인서트핀을 구비하여 PCB 기판과 트리거 코일을 SMD 결합을 하였는데, 본 발명에서는 종래기술에서 적용된 보빈을 없애고, 트리거 코일의 코어 자체에 도금처리를 하여 코어에 권선을 권취한 후 PCB 기판에 바로 SMD 결합을 할 수 있는 트리거 코일의 구성에 그 특징이 있다.The present invention relates to a trigger coil, and more particularly, in order to bond a PCB and a trigger coil to SMD (Surface Mounted Device-referred to as 'SMD'), bobbins are provided on both sides of the core of the trigger coil. In addition, in the present invention, the PCB board and the trigger coil were SMD-bonded by having an insert pin in the bobbin. In the present invention, the bobbin applied in the prior art is removed, and the winding is wound on the core by plating the core of the trigger coil itself, followed by the PCB board. This feature is characterized by the construction of a trigger coil that can be directly bonded to SMD.

트리거 코일, 권선, 도금, PCB, SMDTrigger Coil, Winding, Plating, PCB, SMD

Description

트리거 코일{Trigger Coil} Trigger Coil             

도 1은 종래 트리거 코일을 나타낸 구조도1 is a structural diagram showing a conventional trigger coil

도 2는 본 발명 트리거 코일의 사시도2 is a perspective view of the present invention trigger coil

도 3은 본 발명 트리거 코일의 평면도 및 단면도3 is a plan view and a cross-sectional view of the present invention trigger coil

도 4는 본 발명 트리거 코일의 권선 권취 단면도4 is a cross-sectional winding winding of the present invention trigger coil

도 5는 본 발명 트리거 코일의 회로도5 is a circuit diagram of a trigger coil of the present invention;

도 6은 본 발명 트리거 코일의 도금 공정도6 is a plating process diagram of the present invention trigger coil

※ 도면의 주요부분에 대한 부호의 설명※ Explanation of code for main part of drawing

100. 트리거 코일 101. 코어100. Trigger coil 101. Core

102. 입력부 103. GR부102. Input section 103. GR section

104. 출력부 105. 제1권취부104. Output section 105. First winding section

106. 제2권취부 107. 제3권취부106. Second Volume 107. Third Volume

108. 권선가이드부 109. 도금부108. Winding guide part 109. Plating part

110. 1차코일 111. 2차코일110. Primary coil 111. Secondary coil

112. 외장 Tape 113. 제1접합부112. Exterior Tape 113. First Joint

114. 제2접합부 115. 제3접합부114. Second junction 115. Third junction

116. 권선이탈방지부116. Winding break prevention

본 발명은 트리거 코일에 관한 것으로서, 좀 더 상세하게 설명하자면 스트로보용 고전압 트리거 펄스를 만들어서 FLASHLAMP(섬광등)을 이온화하여 램프를 통해 FLASH STORAGE CAPACTIOR에 방전되면서 빛을 만들게 하는 트리거 코일에 관한 것이다.The present invention relates to a trigger coil, and in more detail, to generate a high voltage trigger pulse for strobe to ionize the FLASHLAMP (flash lamp) to discharge the FLASH STORAGE CAPACTIOR through the lamp to create a light.

종래 트리거 코일은 일본공개특허 2003-332157호가 있는데, 도 1을 참조하여 설명하면, 막대모양의 코어(11)가 구비되고, 상기 코어(11)의 양측에는 코어(11)와 고정되는 보빈(12)이 구비되며, 상기 보빈(12)에는 인서트핀이 삽입되어 PCB기판에 SMD 결합되는 단자부(19)가 구비되어 있으며, 보빈(12)의 측면에는 권선 권취 처리단자인 보조핀(18)이 구비되어 있고, 단자(16a ~ 16d)로 권선을 권취하여 코어(11)에 권선을 감아서 1차코일을 형성하고, 코일(21)은 2차코일이 된다.Conventional trigger coils are disclosed in Japanese Patent Application Laid-Open No. 2003-332157, which will be described with reference to FIG. 1, wherein a rod-shaped core 11 is provided, and bobbins 12 fixed to the core 11 on both sides of the core 11 are provided. ), The bobbin 12 is provided with a terminal portion 19 is inserted into the insert pin is SMD coupled to the PCB substrate, the side of the bobbin 12 is provided with an auxiliary pin (18) winding winding terminal. The winding is wound around the terminals 16a to 16d, the winding is wound around the core 11 to form a primary coil, and the coil 21 becomes a secondary coil.

상기의 구성으로 구비된 종래 트리거 코일은 보빈(12)에 권선을 결선하여 코어(11)를 삽입한 구조로서, 코어(11)의 단면적이 보빈(12)에 비하여 작기 때문에 출력전압을 높이기 위해서는 그에 비례하여 권선을 많이 감아야 하는 문제점이 있고, 당연히 트리거 코일의 크기가 커야하는 문제점도 있었고, PCB 기판과 SMD 결합 되는 단자부를 잡아주는 보빈(12)이 필요하므로 구조가 복잡해지고 제작비용이 많이 소요된다는 문제점이 있었다.The conventional trigger coil provided in the above configuration has a structure in which the core 11 is inserted by connecting a winding to the bobbin 12, and the cross section of the core 11 is smaller than that of the bobbin 12 so as to increase the output voltage. There is a problem of winding the winding in proportion, and of course, there is a problem that the size of the trigger coil must be large, and the structure is complicated and expensive to manufacture because a bobbin (12) is required to hold the terminal portion coupled to the PCB board and SMD There was a problem.

본 발명은 상기 종래기술의 문제점을 해결하기 위한 것으로, 코어에 승압용코일(1차와 2차를 같이)의 권취부를 구비하여 코어의 단면적을 크게하여 권선을 많이 감지 않더라도 출력전압을 높일 수 있는 구성을 제공하는데 그 목적이 있다.The present invention is to solve the problems of the prior art, the core having a winding portion of the boosting coil (like primary and secondary) to increase the cross-sectional area of the core to increase the output voltage even if not much winding The purpose is to provide a configuration.

본 발명은 트리거 코일의 코어에 PCB 기판과 SMD 결합되는 접합부를 구비하고 접합부에 도금처리를 하여, PCB 기판과 트리거 코일을 직접 SMD 결합 할 수 있기 때문에 보빈이 불필요하게 되었고, 그 결과로 트리거 코일의 구조를 간단하게 하고, 크기를 소형화 할 수 있는 구성을 제공하는데 또 다른 목적이 있다.
In the present invention, the core of the trigger coil is provided with a junction bonded to the PCB substrate and SMD, and the plating is performed on the junction, so that the PCB substrate and the trigger coil can be directly SMD-bonded, thereby eliminating the need for bobbins. Another object is to provide a structure that can simplify the structure and reduce the size.

본 발명은 상기의 목적을 달성하기 위한 것으로, PCB 기판과 SMD 결합되는 트리거 코일의 접합부에 도금처리를 하여 트리거 코일의 코어와 PCB 기판을 직접 SMD 결합하게 되므로 보빈이 필요 없는 트리거 코일의 구성에 관한 것이다.The present invention is to achieve the above object, the plating of the junction portion of the trigger coil to be bonded to the PCB PCB SMD is directly bonded to the core of the trigger coil and the PCB substrate to the configuration of the trigger coil does not require a bobbin will be.

본 발명의 상세한 구성을 첨부된 도면을 참조하여 설명하기로 한다.Detailed configuration of the present invention will be described with reference to the accompanying drawings.

도 2는 본 발명 트리거 코일의 사시도이고, 도 3은 본 발명 트리거 코일의 평면도 및 단면도이며, 도 4는 본 발명 트리거 코일의 권선 권취 단면도이고, 도 5는 본 발명 트리거 코일의 회로도이며, 도 6은 본 발명 트리거 코일의 도금 공정도 이다.Figure 2 is a perspective view of the trigger coil of the present invention, Figure 3 is a plan view and a cross-sectional view of the trigger coil of the present invention, Figure 4 is a winding winding cross-sectional view of the trigger coil of the present invention, Figure 5 is a circuit diagram of the trigger coil of the present invention, Figure 6 Is a plating process diagram of the trigger coil of the present invention.

도 2 내지 도 3에서 도시된 것과 같이 본 발명의 트리거 코일(100)은 보빈이 없는 구성으로 되어 있으며, PCB 기판과 SMD 결합되는 부분인 접합부(113, 114, 115)에 전해도금 또는 주석도금을 한 도금부(109)가 구비되어 있는데, 도금공정은 도 6에 도시된 것과 같은 공정으로 도금되며, 통상 사용되는 도금공정을 적용하여도 무방하다.2 to 3, the trigger coil 100 of the present invention has a bobbin-free configuration, and electroplating or tin plating on junctions 113, 114, and 115, which are SMD-coupled PCB substrates. One plating portion 109 is provided, and the plating process is plated by the same process as shown in FIG. 6, and a plating process commonly used may be applied.

본 발명의 트리거 코일(100)의 권선 권취 순서는 도 4에 도시된 것과 같이 코어(101)에는 2차코일(111)이 먼저 권취 된 후 외장 Tape(112)가 감겨지고, 그 외부에 1차코일(110)이 결선된 후 외장 Tape(112)가 감져지는 구성인데, 외장 Tape(112)를 감는 이유는 승압시에 권선 상호간에 절연을 확보하기 위함이다.In the winding winding sequence of the trigger coil 100 of the present invention, as shown in FIG. 4, the secondary coil 111 is wound on the core 101 first, and then the exterior tape 112 is wound on the core 101. The external tape 112 is wound after the coil 110 is connected. The reason for winding the external tape 112 is to ensure insulation between the windings at the time of boosting.

각 코일의 권선 결선 과정을 살펴보면, 먼저 2차코일(111)은 출력부(104)의 제3권취부(107)에 권선을 결선한 후 코어(101)에 권취한 다음 GR부(GROUND : 접지)(103)의 제2권취부(106)에 권선이 권취되어 2차코일(111)의 결선이 완료되는데, 여기서 코어(101) 부분에 감겨진 2차코일(111)의 외부에는 외장 Tape(112)가 감겨진다.Looking at the winding connection process of each coil, first, the secondary coil 111 is connected to the winding of the third winding portion 107 of the output unit 104, and then wound around the core 101, GR (GROUND: grounding) Winding is wound around the second winding portion 106 of the 103 and the wiring of the secondary coil 111 is completed. Here, the exterior of the secondary coil 111 wound around the core 101 part is an external tape ( 112) is wound.

여기서, 코어(101)에 권취되는 2차코일(111)의 권취방법은 서로 대각선으로 교차하는 유니폴라 결선방식을 채택하는데, 그 이유는 2차코일 권선 상호간의 전위차를 줄이고, 내전압을 향상 시키는 역할을 한다.Here, the winding method of the secondary coil 111 wound on the core 101 adopts a unipolar connection method that crosses diagonally with each other, because the reason is to reduce the potential difference between the secondary coil windings and to improve the withstand voltage. Do it.

1차코일(110)은 입력부(102)의 제1권취부(105)에 권선을 결선한 후 코어(101)에 권취한 다음 GR부(103)의 제2권취부(106)에 권선이 권취되어 1차코일(110) 의 결선이 완료되는데, 여기서 코어(101) 부분에 감겨진 1차코일(110)의 외부에도 외장 Tape(112)가 감겨진다.The primary coil 110 is wound on the core 101 after connecting the winding to the first winding 105 of the input unit 102 and then wound around the second winding 106 of the GR unit 103 The connection of the primary coil 110 is completed, where the outer tape 112 is also wound on the outside of the primary coil 110 wound around the core 101.

상기의 구성에서 입력부(102)의 제1접합부(113)와 GR부(103)의 제2접합부(114) 및 출력부(104)의 제3접합부(115)에는 도금부(109)가 형성되어 있으므로, 입력부(102)의 제1권취부(105)와 GR부(103)의 제2권취부(106) 및 출력부(104)의 제3권취부(107)에 권선을 결선하면 자연스럽게 도금부(109)에고 권선이 결선되므로, 트리거 코일(100)의 코어(101)와 PCB 기판을 직접 SMD 결합할 수 있도록 해준다.In the above configuration, the plating portion 109 is formed on the first junction portion 113 of the input portion 102, the second junction portion 114 of the GR portion 103, and the third junction portion 115 of the output portion 104. Therefore, when the windings are connected to the first winding portion 105 of the input portion 102, the second winding portion 106 of the GR portion 103 and the third winding portion 107 of the output portion 104, the plating portion naturally. Since the winding of the 109 wire is connected, the core 101 of the trigger coil 100 and the PCB substrate can be directly SMD-bonded.

도 5는 상기 도 4의 구성으로 결선된 본 발명 트리거 코일의 회로도인데, 1차코일(110)은 제1권취부(105)에서 결선을 시작(ST)하여 제2권취부(106)에서 종료(END)되며, 2차코일(111)은 제3권취부(107)에서 결선을 시작(ST)하여 제2권취부(106)에서 종료(END)된다.FIG. 5 is a circuit diagram of the trigger coil of the present invention connected to the configuration of FIG. 4, wherein the primary coil 110 starts the connection in the first winding unit 105 (ST) and ends in the second winding unit 106. The secondary coil 111 starts the connection in the third winding unit 107 (ST) and ends in the second winding unit 106 (END).

또한, 도 2 내지 도 4에서 도시된 권선가이드부(108)는 트리거 코일(100)에 권선을 권취할시에 1차코일(110)과 1차코일(111)의 권선이 서로 간섭을 하지 않토록 하는 가이드 역할을 하며, 권선이탈방지부(116)가 구비되어 있는데 그 역할은 권선 권취시에 트리거 코일(100)에서 권선이 이탈되는 것을 방지하는 역할을 한다.In addition, the winding guide unit 108 illustrated in FIGS. 2 to 4 does not interfere with the windings of the primary coil 110 and the primary coil 111 when winding the winding on the trigger coil 100. It serves as a guide to, and the winding departure prevention portion 116 is provided that serves to prevent the winding from the trigger coil 100 when the winding winding.

상기에서 설명한 바와 같이 본 발명 트리거 코일은 PCB 기판과 SMD 결합 시에 필요했던 보빈을 없애고, 트리거 코일의 접합부에 도금부를 형성하여 트리거 코일의 코어와 PCB 기판을 직접 SMD 결합할 수 있기 때문에 보빈이 필요 없게 되는 효과와, 보빈이 없으므로 크기가 작아지며 코어의 단면적을 넓게 할 수 있기 때문에 권선을 많이 감지 않더라도 출력전압을 높일 수 있고, 권선소요량이 줄어들며, 그 결과로 구성이 간단해지고, 제작비용이 감소되며, 소형경량화가 가능하므로 회로설계시 여러가지 이득이 있는 매우 유용한 발명이다.As described above, the trigger coil of the present invention eliminates the bobbin required for PCB bonding with the PCB, and requires a bobbin because the plating part may be formed at the junction of the trigger coil to directly SMD-couple the core of the trigger coil to the PCB substrate. The effect is that there are no bobbins, and the size is smaller and the core cross-sectional area can be widened, so that the output voltage can be increased even if the winding is not detected a lot, the winding requirements are reduced, and as a result, the configuration is simple and the manufacturing cost is reduced. In addition, since it is possible to miniaturize and lightweight, it is a very useful invention with various benefits in circuit design.

Claims (2)

트리거 코일에 있어서,In the trigger coil, 코어(101)의 우측에는 제1권취부(105) 및 도금부(109)를 갖춘 제1접합부(113)로 구성된 입력부(102)와, 제2권취부(106) 및 도금부(109)를 갖춘 제2접합부(114)로 구성된 GR부(103)를 구비하고,On the right side of the core 101, an input portion 102 composed of a first joining portion 113 having a first winding portion 105 and a plating portion 109, a second winding portion 106, and a plating portion 109 are provided. It has a GR portion 103 composed of a second bonding portion 114 provided, 코어(101)의 좌측에는 제3권취부(107) 및 도금부(109)를 갖춘 제3접합부(115)로 구성된 출력부(104)를 구비하고,On the left side of the core 101 is provided an output section 104 composed of a third winding section 107 with a third winding section 107 and a plating section 109, 코어(101)의 좌·우측의 상부에 각각 권선가이드부(108)와 권선이탈방지부(116)를 구비한 것을 특징으로 하는 트리거 코일.And a winding guide part 108 and a winding detachment prevention part 116 on upper left and right sides of the core 101, respectively. 제 1항에 있어서, 1차코일(110)은 입력부(102)의 제1권취부(105)에서 결선을 시작하여 코어(101)에 권취한 다음 GR부(103)의 제2권취부(106)에서 권선의 결선이 완료되며, 2차코일(111)은 출력부(104)의 제3권취부(107)에서 결선을 시작하여 코어(101)에 권취한 다음 GR부(103)의 제2권취부(106)에서 권선의 결선이 완료되는 것을 특징으로 하는 트리거 코일.According to claim 1, The primary coil (110) starts the wiring in the first winding unit 105 of the input unit 102, wound on the core 101, and then the second winding unit 106 of the GR unit 103 ), The winding of the winding is completed, the secondary coil 111 starts the wiring in the third winding unit 107 of the output unit 104, wound on the core 101, and then the second of the GR unit 103 Trigger coil, characterized in that the winding of the winding is completed in the 106.
KR1020040117113A 2004-12-30 2004-12-30 Trigger Coil KR100578040B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI706285B (en) * 2017-03-30 2020-10-01 美商莫仕有限公司 Tamper proof payment reader

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0613246A (en) * 1992-06-26 1994-01-21 Toko Inc High-frequency step-up transformer
JPH07161518A (en) * 1993-12-09 1995-06-23 Fuji Elelctrochem Co Ltd Connection structure of surface mounting coil
JP2002008926A (en) 2000-06-23 2002-01-11 Kawaguchiko Seimitsu Co Ltd Surface-mounting type compact transformer
JP2002025836A (en) 2000-07-07 2002-01-25 Tokyo Coil Engineering Kk Long, narrow, and thin inverter transformer
JP2003168611A (en) 2001-09-18 2003-06-13 Murata Mfg Co Ltd High-frequency common mode choke coil
JP2003257743A (en) 2002-03-05 2003-09-12 Matsushita Electric Ind Co Ltd Coil component
US20040080391A1 (en) 2002-05-21 2004-04-29 Yun-Kuang Fan Ferrite cored coil structure for SMD and fabrication method of the same

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0613246A (en) * 1992-06-26 1994-01-21 Toko Inc High-frequency step-up transformer
JPH07161518A (en) * 1993-12-09 1995-06-23 Fuji Elelctrochem Co Ltd Connection structure of surface mounting coil
JP2002008926A (en) 2000-06-23 2002-01-11 Kawaguchiko Seimitsu Co Ltd Surface-mounting type compact transformer
JP2002025836A (en) 2000-07-07 2002-01-25 Tokyo Coil Engineering Kk Long, narrow, and thin inverter transformer
JP2003168611A (en) 2001-09-18 2003-06-13 Murata Mfg Co Ltd High-frequency common mode choke coil
JP2003257743A (en) 2002-03-05 2003-09-12 Matsushita Electric Ind Co Ltd Coil component
US20040080391A1 (en) 2002-05-21 2004-04-29 Yun-Kuang Fan Ferrite cored coil structure for SMD and fabrication method of the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI706285B (en) * 2017-03-30 2020-10-01 美商莫仕有限公司 Tamper proof payment reader

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