KR101481412B1 - For the air-core inductor coil structure of the mold - Google Patents

For the air-core inductor coil structure of the mold Download PDF

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KR101481412B1
KR101481412B1 KR20130102866A KR20130102866A KR101481412B1 KR 101481412 B1 KR101481412 B1 KR 101481412B1 KR 20130102866 A KR20130102866 A KR 20130102866A KR 20130102866 A KR20130102866 A KR 20130102866A KR 101481412 B1 KR101481412 B1 KR 101481412B1
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inductor
mold
core coil
air
elastic portion
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KR20130102866A
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Korean (ko)
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차권묵
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주식회사 코일마스터
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/10—Composite arrangements of magnetic circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/04—Fixed inductances of the signal type  with magnetic core
    • H01F17/043—Fixed inductances of the signal type  with magnetic core with two, usually identical or nearly identical parts enclosing completely the coil (pot cores)
    • 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
    • H01F27/02—Casings
    • H01F27/027—Casings specially adapted for combination of signal type inductors or transformers with electronic circuits, e.g. mounting on printed circuit boards
    • 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
    • H01F41/0253—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 permanent magnets
    • H01F41/026—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 permanent magnets protecting methods against environmental influences, e.g. oxygen, by surface treatment

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

An air-core inductor coil structure for a mold inductor according to the present invention comprises: an inductor body (10) formed of magnetic powder (P); an air-core coil (20) which is molded inside the inductor body; and plated terminals (30) which are plated in both sides of the inductor body and are connected to the air-core coil (20). The air-core coil (20) comprises: a winding unit (21) which is wound multiple times; a first lead line (22) which is connected to one side of the winding unit; and a second lead line (23) which is connected to the other side of the winding unit. The first lead line (22) includes a first elastic unit (22a) which is extended to one side and is curved to have a wider contact area with the plated terminals (30). The second lead line includes a second elastic unit (23a) which is extended to one side and is curved to have a wider contact area with the plated terminals (30). Therefore, the air-core coil can increase the area exposed with the lead lines. The first and second lead lines can be easily exposed to the outer surface of the inductor body by applying elastic force which are to be separated toward the both sides to the lead lines.

Description

몰드인덕터용 공심코일의 구조{ For the air-core inductor coil structure of the mold }BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a mold inductor,

본 발명은 몰드인덕터용 공심코일의 구조에 관한 것으로 보다 상세하게는 공심코일의 리드선에 대한 노출면적이 향상되고, 공심코일의 리드선에 양측으로 이격되려는 탄성력이 부가되도록 몰드인덕터의 내부에 구비되는 공심코일의 리드선이 만곡된 몰드인덕터용 공심코일의 구조에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of an inductor coil for a molded inductor, and more particularly, to a structure of an inductor coil for a mold inductor, in which an exposed area of the coil is improved, To a structure of an air core coil for a molded inductor in which a lead wire of a coil is curved.

최근 각종 전자기기 및 부품의 고성능화, 슬림화의 추세에 따라 실장용 일체형 인덕터의 수요가 증가되고 있고, 특히, 노트북, 모바일기기, 엘시디 텔레비전/모니터, 컴퓨터 장치 등에서 많은 기능을 안정되게 수행하고자 향상된 전원공급 수단이 요구되고 있다.2. Description of the Related Art In recent years, demand for integrated inductors for mounting has been increasing in accordance with the trend of high performance and slimness of various electronic devices and parts. Especially, an improved power supply is required to perform many functions stably in a notebook, a mobile device, an LCD TV / Means are required.

여기서, 상기 전원공급 수단에는 DC-DC 컨버터, Buck 컨버터, Boost 컨버터 등의 각종 전원회로가 사용되는데, 단말장치에 전력을 공급하는 경우, DC-DC 컨버터를 사용하여 승압 및 강압된 직류전압을 공급하게 된다. Here, various power circuits such as a DC-DC converter, a Buck converter, and a Boost converter are used as the power supply means. When power is supplied to the terminal device, a DC voltage is supplied to the terminal device by using a DC- .

이러한 전원회로에는 인덕터가 사용되는데 일반적으로 인덕터는 저항·콘덴서 등과 함께 전기회로를 이루는 가장 중요한 부품 가운데 하나로서 구리나 알루미늄 등을 절연성 재료로 싸서 나사 모양으로 여러 번 감은 솔레노이드 또는 도선을 복수번 감은 코일로 형성되는 가장 기본적인 회로 부품이자 회로 소자이다.An inductor is used in such a power supply circuit. In general, an inductor is one of the most important parts constituting an electric circuit together with a resistor, a capacitor, etc., and a copper coil or aluminum coil is wrapped with an insulating material, And is the most basic circuit component and circuit element.

근래에는 저손실 특성과 직류중첩 특성이 우수한 인덕터의 개발이 요청되고 있고, 이러한 요청에 대응한 인덕터로 절연코팅된 자성금속분말과 코일소자를 금형 내에 배치하고, 프레스 성형하여 자성체코어 즉, 인덕터본체의 내부에 코일소자를 매설하고, 상기 인덕터본체의 양측표면에 단자를 도금하여 내부에 매설된 코일소자의 전원을 인덕터본체의 외부로 도통시킬 수 있는 몰드인덕터가 개발되고 있다.In recent years, there has been a demand for development of an inductor having excellent low-loss characteristics and direct current superimposition characteristics, and a magnetic metal powder and a coil element insulated with an inductor corresponding to such a request are placed in a metal mold and press- There has been developed a molded inductor in which a coil element is embedded in the inside of the inductor body and a terminal is plated on both side surfaces of the inductor body so that the power of the coil element embedded in the inside is conducted to the outside of the inductor body.

종래의 몰드인덕터에 대한 기술문헌으로 국내등록특허공보 제10-1164210호가 개시되었고, 도 1은 종래의 몰드인덕터를 나타내 보인 모식도이다.Japanese Patent Laid-Open No. 10-1164210 discloses a conventional mold inductor, and FIG. 1 is a schematic diagram showing a conventional mold inductor.

여기서, 종래의 인덕터(1)는 도 1에 도시된 바와 같이 복수번 권선된 코일(2)과, 상기 코일(2)을 둘러싸고 있는 인덕터본체(3)와, 상기 코일(2)에 접속되어 전원을 인가하기 위한 인덕터단자(4)로 구성된다.1, the conventional inductor 1 includes a coil 2 wound around a plurality of turns, an inductor main body 3 surrounding the coil 2, and a coil 2 connected to the coil 2, And an inductor terminal 4 for applying an inductor terminal.

한편, 종래의 또 다른 인덕터로서 도 2에 도시된 바와 같이 상기 인덕터본체(3)의 양측 표면에 전기가 도통하는 단자를 도금시킨 도금단자(6)를 형성하여, 상기 내부에 구비된 코일(2)의 양단부를 상기 도금단자(6)에 직접 접촉시켜 도통시키는 도금단자형 몰드인덕터가 개발되었고 현재 사용되고 있는 실정이다.As shown in FIG. 2, another conventional inductor includes a plating terminal 6 formed by plating terminals electrically connected to both sides of the inductor body 3, and a coil 2 ) Is directly brought into contact with the plating terminal 6 to conduct the plating terminal-type molded inductor has been developed and is now in use.

그러나, 종래의 도금단자형 몰드인덕터는 도 3에 도시된 바와 같이 상기 인덕터본체(3)의 외측 표면으로 노출되는 상기 코일(2)의 양측 리드선(5)에 대한 면적이 매우 미세하여 외부 전원도통부와의 접촉이 불량해지는 문제점이 있었다.3, the area of the coil 2 exposed to the outer surface of the inductor body 3 is extremely small due to the small area of the lead wires 5 on both sides of the inductor main body 3, There is a problem that the contact with the cylinder portion becomes poor.

그리고, 종래의 몰드인덕터는 상기 인덕터본체(3)를 프레스 성형할 경우 상기 코일(2)의 양측 리드선에서 발생되는 외측으로 이격되려는 탄발력이 극히 작아 상기 인덕터본체(3)가 성형된 후 외측 표면으로 노출되는 상기 코일(2)의 양측 리드선이 매몰되는 문제점이 있었다.In the conventional mold inductor, when the inductor body 3 is press-molded, the resilient force generated by the both side lead wires of the coil 2 to be spaced outward is extremely small. Therefore, after the inductor main body 3 is molded, There is a problem that the lead wires on both sides of the coil 2 exposed to the outside are buried.

본 발명은 상기와 같은 종래 기술의 문제점을 해결하기 위해 창작된 것으로 본 발명의 목적은 몰드인덕터를 프레스 성형하여 제작할 경우 몰드인덕터의 내부에 구비되는 공심코일에 양측으로 연장된 리드선을 만곡하여 공심코일의 리드선에 대한 노출면적을 향상시키고, 공심코일의 리드선에 양측으로 이격되려는 탄성력을 부가하여 인덕터본체의 외측 표면으로 용이하게 노출시킬 수 있는 몰드인덕터용 공심코일의 구조를 제공함에 있다.SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide a mold inductor in which, when a mold inductor is manufactured by press molding, a lead wire extending on both sides of the core coil provided in the mold inductor is bent, And an elastic force to be separated from the lead wire of the air core coil to the both sides of the lead wire so as to be easily exposed to the outer surface of the inductor main body.

상기한 목적을 달성하기 위한 본 발명에 의한 몰드인덕터용 공심코일의 구조는 자성체분말과 공심코일을 금형 내에 배치한 후 프레스 성형으로 몰드인덕터를 성형하기 위한 몰드인덕터의 내부에 구비된 몰드인덕터용 공심코일의 구조로서 상기 몰드인덕터는 상기 자성체분말로 이루어진 인덕터본체와, 상기 인덕터본체의 내부에 몰딩된 공심코일과, 상기 인덕터본체의 양측에 도금되며 상기 공심코일과 연결된 도금단자로 구성되고; 상기 공심코일은 다수회 권선된 권선부와, 상기 권선부의 일측으로 연결된 제1리드선과, 상기 권선부의 타측으로 연결된 제2리드선으로 이루어지며; 상기 제1리드선은 일측으로 연장되며 상기 도금단자와 접촉면적이 넓어지도록 만곡된 제1탄성부가 형성되고; 상기 제2리드선의 타측으로 연장되며 상기 도금단자와 접촉면적이 넓어지도록 만곡된 제2탄성부가 형성된 것을 특징으로 한다.According to an aspect of the present invention, there is provided an inductor core for a mold inductor, the inductor core including a magnetic material powder and an air core coil disposed in the mold, Wherein the inductor body comprises the magnetic body powder, an air core coil molded inside the inductor body, and a plating terminal plated on both sides of the inductor body and connected to the air core coil; Wherein the air core coil comprises a winding part wound a plurality of times, a first lead wire connected to one side of the winding part, and a second lead wire connected to the other side of the winding part; Wherein the first lead line extends to one side and is formed with a curved first elastic portion to widen the contact area with the plating terminal; And a second elastic portion extending to the other side of the second lead wire and curved so as to increase the contact area with the plating terminal.

상기 제1탄성부와, 제2탄성부는 "U"자형으로 만곡된 것을 특징으로 한다.The first elastic portion and the second elastic portion are curved in a "U" shape.

상기 제1탄성부와, 제2탄성부는 발생되는 탄성력이 향상되도록 그 만곡되는 횟수가 2회 이상으로 만곡된 것을 특징으로 한다.The first elastic portion and the second elastic portion are curved twice or more so that the elastic force generated is increased.

이와 같이 본 발명에 의한 몰드인덕터용 공심코일의 구조는 다음과 같은 효과가 있다.As described above, the structure of the core coil for a mold inductor according to the present invention has the following effects.

첫째, 몰드인덕터를 프레스 성형하여 제작할 경우 몰드인덕터의 내부에 구비되는 공심코일에 양측으로 연장된 리드선을 만곡함으로써, 인덕터본체의 외측 표면으로 상기 리드선의 노출면적을 대폭 향상시킬 수 있고,First, when the mold inductor is manufactured by press molding, the exposed area of the lead wire can be significantly improved to the outer surface of the inductor body by curving the lead wires extending to both sides of the air core coil provided in the mold inductor,

둘째, 공심코일의 리드선을 "U"자형으로 만곡시킨 탄성부를 형성함으로써, 공심코일의 리드선에 양측으로 이격되려는 탄성력을 부가하여 인덕터본체의 외측 표면으로 용이하게 노출시킬 수 있는 효과가 있다.Secondly, by forming the elastic portion formed by curving the lead wire of the air core coil into "U " shape, it is possible to easily expose the lead wire of the air core coil to the outer surface of the inductor body.

도 1은 종래의 일반적인 몰드인덕터를 나타내 보인 모식도이고,
도 2는 종래의 도금단자형 몰드인덕터를 나타내 보인 모식도이며,
도 3은 종래의 도금단자형 몰드인덕터 내부에 구비된 코일을 나타내 보인 단면도이며,
도 4는 본 발명에 따른 몰드인덕터 내부에 구비된 코일을 나타내 보인 단면도이고,
도 5는 본 발명에 따른 또 다른 일실시예를 나타내 보인 단면도이다.FIG. 1 is a schematic view showing a conventional conventional mold inductor,
2 is a schematic view showing a conventional plating terminal type mold inductor,
3 is a cross-sectional view of a conventional coil terminal type mold inductor,
4 is a cross-sectional view of a coil provided in a mold inductor according to the present invention,
5 is a cross-sectional view showing another embodiment according to the present invention.

이하, 첨부된 도면을 참조하여 본 발명의 일 실시예를 상세히 설명하면 다음과 같다.Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

본 발명에 의한 몰드인덕터용 공심코일의 구조는 도 4 내지 도 5에 도시된 바와 같이 자성체분말(P)과 공심코일(20)을 금형 내에 배치한 후 프레스 성형으로 몰드인덕터(1)를 성형하기 위한 몰드인덕터(1)의 내부에 구비된 몰드인덕터용 공심코일의 구조로서, 상기 몰드인덕터(1)는 상기 자성체분말(P)로 이루어진 인덕터본체(10)와, 상기 인덕터본체(10)의 내부에 몰딩된 공심코일(20)과 상기 인덕터본체(10)의 양측에 도금되며 상기 공심코일(20)과 연결된 도금단자(30)로 구성된다.4 to 5, the magnetic substance powder P and the air-core coil 20 are placed in a mold, and then the molded inductor 1 is molded by press molding Wherein the mold inductor 1 comprises an inductor body 10 made of the magnetic powder P and an insulator body 10 made of a material having a high dielectric constant in the inside of the inductor body 10, And a plating terminal 30 which is plated on both sides of the inductor body 10 and is connected to the air core coil 20.

여기서, 상기 공심코일(20)은 다수회 권선된 권선부(21)와, 상기 권선부(21)의 일측으로 연결된 제1리드선(22)과, 상기 권선부(21)의 타측으로 연결된 제2리드선(23)으로 이루어진다.The air core coil 20 includes a plurality of turns of the winding section 21, a first lead wire 22 connected to one side of the winding section 21 and a second lead wire 22 connected to the other side of the winding section 21, And a lead wire 23.

이때, 상기 제1리드선(22)은 일측으로 연장되며 상기 도금단자(30)와 접촉면적이 넓어지도록 만곡된 제1탄성부(22a)가 형성되고; 상기 제2리드선(23)은 타측으로 연장되며 상기 도금단자(30)와 접촉면적이 넓어지도록 만곡된 제2탄성부(23a)가 형성된다.At this time, the first lead wire 22 extends to one side and is formed with a curved first elastic portion 22a to widen the contact area with the plating terminal 30; The second lead wire 23 is extended to the other side and a curved second elastic portion 23a is formed so that the contact area with the plating terminal 30 is widened.

여기서, 상기 제1탄성부(22a)와, 제2탄성부(23a)는 상기 양측으로 이격되려는 탄성력이 구비되도록 "U"자형으로 만곡된다. Here, the first elastic portion 22a and the second elastic portion 23a are curved in a "U" shape so as to have an elastic force to be separated from the both sides.

한편, 상기 제1탄성부(22a)와, 제2탄성부(23a)는 도 5에 도시된 바와 같이 발생되는 탄성력이 향상되도록 그 만곡되는 횟수가 2회 이상으로 만곡되는 것도 바람직하다.
It is also preferable that the first elastic portion 22a and the second elastic portion 23a are curved twice or more so that the elastic force generated as shown in FIG. 5 is improved.

상기와 같은 구성으로 이루어진 몰드인덕터용 공심코일의 구조의 작용을 살펴보면 아래와 같다.The operation of the structure of the air core coil for a molded inductor having the above-described structure will be described below.

본 발명에 의한 몰드인덕터용 공심코일의 구조는 도 4 내지 도 5에 도시된 바와 같이 자성체분말(P)과 공심코일(20)을 금형 내에 배치한 후 프레스 성형하여 몰드인덕터(1)를 성형할 경우 상기 몰드인덕터(1)의 내부에 구비되는 공심코일(C)에 양측으로 연장된 제1리드선(22) 및 제2리드선(23)을 만곡함으로써, 상기 인덕터본체(10)의 외측 표면에 도금된 상기 도금단자(30)로 상기 제1리드선(22) 및 제2리드선(23)의 노출면적을 배가시켜 접촉성을 대폭 향상시킬 수 있게 된다.4 to 5, the magnetic material powder P and the air-core coil 20 are placed in a mold and then press-molded to mold the mold inductor 1 A first lead wire 22 and a second lead wire 23 extending to both sides of the common core coil C provided in the mold inductor 1 are bent to form a plating layer on the outer surface of the inductor body 10. [ The exposed area of the first lead wire 22 and the second lead wire 23 is doubled by the plating terminal 30 so that the contactability can be greatly improved.

여기서, 상기 제1리드선(22) 및 제2리드선(23)을 "U"자형으로 만곡시킨 제1탄성부(22a)와, 제2탄성부(23a)를 형성함으로써, 상기 제1리드선(22) 및 제2리드선(23)에 양측으로 이격되려는 탄성력을 부가하여 상기 인덕터본체(10)의 외측 표면으로 용이하게 노출시켜 외부 전원도통부(미도시)와 안전하게 접촉시킬 수 있게 된다. The first elastic portion 22a and the second elastic portion 23a are formed by curving the first lead wire 22 and the second lead wire 23 in a U shape and the first lead wire 22 And the second lead wire 23 are easily exposed to the outer surface of the inductor body 10 so that the external power can be safely brought into contact with the sleeve (not shown).

한편, 도 5에 도시된 바와 같이 상기 제1탄성부(22a)와, 제2탄성부(23a)를 1회 이상으로 만곡시킴으로써, 상기 제1리드선(22) 및 제2리드선(23)에 양측으로 이격되려는 탄성력을 향상시켜 상기 인덕터본체(10)의 외측 표면으로 용이하게 노출시킬 수 있게 된다. 5, by bending the first elastic portion 22a and the second elastic portion 23a one or more times, the first lead wire 22 and the second lead wire 23 are connected to both sides The inner surface of the inductor body 10 can be easily exposed to the outside surface.

본 발명은 상술한 특정의 바람직한 실시예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 고안이 속하는 기술분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형실시가 가능한 것은 물론이고, 그와 같은 변경은 청구범위 기재의 범위 내에 있게 된다.It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

<도면의 주요부분에 대한 부호의 설명>
1 : 몰드인덕터 10 : 인덕터본체
20 : 공심코일 21 : 권선부
22 : 제1리드선 22a : 제1탄성부
23 : 제2리드선 23a : 제2탄성부
30 : 도금단자 P : 자성체분말Description of the Related Art
1: Molded inductor 10: Inductor body
20: core coil 21: winding part
22: first lead wire 22a: first elastic portion
23: second lead wire 23a: second elastic portion
30: plating terminal P: magnetic substance powder

Claims (3)

자성체분말(P)과 공심코일(20)을 금형 내에 배치한 후 프레스 성형으로 몰드인덕터(1)를 성형하기 위한 몰드인덕터(1)의 내부에 구비된 몰드인덕터용 공심코일의 구조에 있어서,
상기 몰드인덕터(1)는 상기 자성체분말(P)로 이루어진 인덕터본체(10)와, 상기 인덕터본체(10)의 내부에 몰딩된 공심코일(20)과, 상기 인덕터본체(10)의 양측에 도금되며 상기 공심코일(20)과 연결된 도금단자(30)로 구성되고;
상기 공심코일(20)은 다수회 권선된 권선부(21)와, 상기 권선부(21)의 일측으로 연결된 제1리드선(22)과, 상기 권선부(21)의 타측으로 연결된 제2리드선(23)으로 이루어지며;
상기 제1리드선(22)은 일측으로 연장되며 상기 도금단자(30)와 접촉면적이 넓어지도록 만곡된 제1탄성부(22a)가 형성되고;
상기 제2리드선(23)은 타측으로 연장되며 상기 도금단자(30)와 접촉면적이 넓어지도록 만곡된 제2탄성부(23a)가 형성되고;
상기 제1탄성부(22a)와, 제2탄성부(23a)는 발생되는 탄성력이 향상되도록 그 만곡되는 횟수가 2회 이상으로 만곡된 것을 특징으로 하는 몰드인덕터용 공심코일의 구조.In the structure of an air core coil for a mold inductor provided inside a mold inductor (1) for forming a mold inductor (1) by press molding after disposing a magnetic substance powder (P) and an air core coil (20)
The mold inductor 1 includes an inductor body 10 made of the magnetic powder P, an air core coil 20 molded inside the inductor body 10, And a plating terminal (30) connected to the air core coil (20);
The air core coil 20 includes a plurality of turns of a winding 21, a first lead 22 connected to one side of the winding 21, and a second lead 22 connected to the other side of the winding 21 23);
The first lead wire 22 extends to one side and is formed with a curved first elastic portion 22a to widen the contact area with the plating terminal 30;
The second lead wire (23) extends to the other side and is formed with a curved second elastic portion (23a) so as to widen the contact area with the plating terminal (30);
Wherein the first elastic portion (22a) and the second elastic portion (23a) are bent twice or more so as to improve the elastic force generated. 제 1 항에 있어서,
상기 제1탄성부(22a)와, 제2탄성부(23a)는 "U"자형으로 만곡된 것을 특징으로 하는 몰드인덕터용 공심코일의 구조.The method according to claim 1,
Wherein the first elastic portion (22a) and the second elastic portion (23a) are curved in a "U" shape. 삭제delete
KR20130102866A 2013-08-29 2013-08-29 For the air-core inductor coil structure of the mold KR101481412B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107768069A (en) * 2017-11-22 2018-03-06 深圳顺络电子股份有限公司 A kind of inductor and preparation method thereof
US11694838B2 (en) 2019-06-21 2023-07-04 Samsung Electro-Mechanics Co., Ltd. Coil electronic component

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Publication number Priority date Publication date Assignee Title
JP2009260116A (en) 2008-04-18 2009-11-05 Toko Inc Molded coil and producing method of the same
JP2010147271A (en) 2008-12-19 2010-07-01 Toko Inc Method for manufacturing molded coil
JP2010147272A (en) 2008-12-19 2010-07-01 Toko Inc Method for manufacturing molded coil
JP2010177492A (en) * 2009-01-30 2010-08-12 Toko Inc Method for manufacturing mold coil

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009260116A (en) 2008-04-18 2009-11-05 Toko Inc Molded coil and producing method of the same
JP2010147271A (en) 2008-12-19 2010-07-01 Toko Inc Method for manufacturing molded coil
JP2010147272A (en) 2008-12-19 2010-07-01 Toko Inc Method for manufacturing molded coil
JP2010177492A (en) * 2009-01-30 2010-08-12 Toko Inc Method for manufacturing mold coil

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107768069A (en) * 2017-11-22 2018-03-06 深圳顺络电子股份有限公司 A kind of inductor and preparation method thereof
US11694838B2 (en) 2019-06-21 2023-07-04 Samsung Electro-Mechanics Co., Ltd. Coil electronic component

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