KR100692183B1 - Structure of fixing an electric circuit - Google Patents

Structure of fixing an electric circuit Download PDF

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Publication number
KR100692183B1
KR100692183B1 KR1020050105893A KR20050105893A KR100692183B1 KR 100692183 B1 KR100692183 B1 KR 100692183B1 KR 1020050105893 A KR1020050105893 A KR 1020050105893A KR 20050105893 A KR20050105893 A KR 20050105893A KR 100692183 B1 KR100692183 B1 KR 100692183B1
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South Korea
Prior art keywords
rib
electric circuit
fixing
recessed groove
pressing
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KR1020050105893A
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Korean (ko)
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박성기
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경신공업 주식회사
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/18—Printed circuits structurally associated with non-printed electric components
    • H05K1/182—Printed circuits structurally associated with non-printed electric components associated with components mounted in the printed circuit board, e.g. insert mounted components [IMC]
    • H05K1/184—Components including terminals inserted in holes through the printed circuit board and connected to printed contacts on the walls of the holes or at the edges thereof or protruding over or into the holes
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/38—Improvement of the adhesion between the insulating substrate and the metal
    • H05K3/381—Improvement of the adhesion between the insulating substrate and the metal by special treatment of the substrate

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Connection Of Plates (AREA)

Abstract

A structure for fixing an electric circuit is provided to prevent the electric circuit from being damaged by inserting a pressing protrusion into a recessed groove formed on an upper plane of a rib formed on an insulation plate. A structure for fixing an electric circuit includes a rib(32), an insulation plate(30), an electric circuit(20), a recessed groove(34), a pressing protrusion(42), and a stepped protrusion(44). The rib(32) is protrusively formed on the insulation plate(30). The rib(32) is inserted into a fixing hole of the electric circuit(20). The insulation plate(30) and the electric circuit(20) are fixed by pressing the rib(32) from an upper part through an pressure rod and deforming the rib(32) permanently. The recessed groove(34) is recessed on an end plane of the rib(32) and gets narrow as going to an lower part. The pressing protrusion(42) of a corn shape is inserted into the recessed groove(34) on an end plane of the pressing rod. The stepped protrusion(44) is formed on an outer side of the pressing protrusion(42).

Description

전기회로의 고정구조 { Structure of fixing an electric circuit } Structure of fixing an electric circuit

도 1은 종래의 전기회로 고정 구조를 나타낸 작동 상태도.1 is an operating state diagram showing a conventional electric circuit fixing structure.

도 2는 본 발명에 따른 전기회로 고정 구조를 나타낸 사시도.2 is a perspective view showing an electric circuit fixing structure according to the present invention.

도 3은 본 발명에 따른 전기회로 고정 구조를 나타낸 작동 상태도.3 is an operational state diagram showing an electric circuit fixing structure according to the present invention.

도 4는 본 발명에 따른 전기회로 고정 방법을 나타낸 순서도.4 is a flow chart showing a method for fixing an electric circuit according to the present invention.

*도면의 주요부분에 대한 부호의 설명** Explanation of symbols for main parts of drawings *

20 : 전기회로 22 : 고정홀20: electric circuit 22: fixing hole

30 : 절연판 32 : 리브30: insulation plate 32: rib

34 : 함몰홈 40 : 압력봉34: recessed groove 40: pressure rod

42 : 압착돌기 44 : 단턱42: crimp protrusion 44: step

50 : 회로판50: circuit board

본 발명은 전기회로의 고정구조에 관한 것으로서, 보다 상세하게는 절연판에서 상부로 돌출된 리브의 끝단면에 함몰홈을 형성하고, 상기 함몰홈에 삽입되도록 압력봉의 끝단면에 원뿔형상의 압착돌기를 형성하여 가압함으로써, 조립이 용이하고, 소재의 한계가 없으며, 전기회로를 확실히 고정시켜 접촉 안정성을 증가시키는 전기회로 고정구조에 관한 것이다.The present invention relates to a fixed structure of an electric circuit, and more particularly, to form a recessed groove in the end surface of the rib protruding upward from the insulating plate, and to form a conical crimping protrusion on the end surface of the pressure rod to be inserted into the recessed groove. The present invention relates to an electric circuit fixing structure that is easy to assemble, has no limitation of material, and securely fixes an electric circuit to increase contact stability.

일반적으로, 각종 전자장비의 내부에는 여러가지 전기회로가 실장되는데, 이 전기회로의 크기에 따라 전기회로를 고정하는 구조는 각각 달라진다.In general, various electric circuits are mounted in various electronic equipments, and structures for fixing the electric circuits vary depending on the size of the electric circuits.

현재의 고정구조는 절연판에는 다수개의 리브가 상부로 돌출형성되고, 전기회로에는 상기 리브가 삽입되도록 다수개의 고정홀을 형성하고 있다.In the current fixing structure, a plurality of ribs protrude upward from the insulating plate, and a plurality of fixing holes are formed in the electric circuit to insert the ribs.

상기 전기회로는 동합금판으로 이루어지며, 상기 절연판은 플라스틱판으로 이루어진다.The electric circuit is made of a copper alloy plate, the insulating plate is made of a plastic plate.

상기 리브에 강제로 압력을 가하여 영구변형시켜 절연판과 전기회로를 결합시켜 회로판을 구성하고 있다. Forced pressure is applied to the ribs to permanently deform the insulating plate and the electric circuit to form a circuit board.

도 1은 종래의 전기회로 고정 구조를 나타낸 단면도이다.1 is a cross-sectional view showing a conventional electric circuit fixing structure.

도 1에서 도시한 바와 같이 종래의 전기회로 고정 구조는, 절연판(4)에 상부로 돌출 형성된 리브(6)가 형성되고, 전기회로(1)에는 고정홀(2)이 형성되어 상기 리브(6)가 고정홀(2)에 삽입된다.As shown in FIG. 1, in the conventional electric circuit fixing structure, ribs 6 protruding upward from the insulating plate 4 are formed, and fixing holes 2 are formed in the electric circuit 1 so that the ribs 6 are formed. ) Is inserted into the fixing hole (2).

그리고, 프레스에서 압력봉(8)으로 구성된 공구를 구비하여 상기 고정홀(2)에 삽입된 리브(6)를 상기 압력봉(8)을 이용하여 강제로 압력을 가하여 상기 리브 (6)가 압력에 의해 납작하게 영구변형시킨 후 상기 압력봉(8)을 제거하면 회로판(10) 구성이 완료된다. Then, the press 6 is provided with a tool composed of the pressure rod 8 and the rib 6 inserted into the fixing hole 2 is forcibly pressurized using the pressure rod 8 so that the rib 6 is pressurized. After permanently deforming by flattening and removing the pressure rod 8, the circuit board 10 configuration is completed.

상기 리브(6)의 끝단은 외측으로 펼쳐져 납작하게 변형되어 상기 전기회로(1)의 고정홀(2) 외측상면에 형성되어 상기 전기회로(1)가 이탈되지 않도록 한다.The end of the rib 6 is extended outwardly to form a flat deformation on the outer surface of the fixing hole 2 of the electric circuit 1 so that the electric circuit 1 is not separated.

그러나, 상기와 같은 종래의 전기회로 고정 구조에 의하면, 공정중에 전기회로의 파손이 일어나 절연 회로구성이 완벽하지 못하고, 상기 리브가 탄력을 있는 재료일 경우 영구변형이 어려우며, 압력에 의해 상기 리브의 영구변형이 정확하게 되질 않아 조립작업이 어려워 대량생산이 불가능한 문제점이 있었다.However, according to the conventional electric circuit fixing structure as described above, breakage of the electric circuit occurs during the process, the insulation circuit configuration is not perfect, and the permanent deformation of the rib is difficult due to pressure when the rib is made of elastic material. There was a problem that the mass production is impossible because the assembly is difficult because the deformation is not accurate.

이에 본 발명은 상기와 같은 문제점들을 해소하기 위해 안출된 것으로써, 본 발명은 절연판에서 상부로 돌출된 리브의 상단면에 함몰홈을 형성하고, 상기 함몰홈에 삽입되도록 압력봉의 하단면에 원뿔형상의 압착돌기를 형성하여 가압함으로써, 조립이 용이하고, 소재의 한계가 없으며, 전기회로를 확실히 고정시켜 접촉 안정성을 증가시키는 전기회로 고정구조를 제공한다.Accordingly, the present invention has been made to solve the above problems, the present invention is to form a recessed groove in the upper surface of the rib protruding upward from the insulating plate, and the conical shape on the lower surface of the pressure rod to be inserted into the recessed groove By forming and pressing the pressing projections, it is easy to assemble, there is no limitation of the material, and provides an electric circuit fixing structure that securely fixes the electric circuit to increase the contact stability.

상기와 같은 목적을 달성하기 위한 본 발명은, 절연판에 돌출되어 리브가 형성되고, 상기 리브가 전기회로의 고정홀에 삽입되고, 상기 리브를 상부에서 압력봉으로 압력을 가해 리브를 영구변형시킴으로서 상기 절연판과 전기회로를 고정하는 구조에 있어서, 상기 리브의 끝단면에 함몰되게 하부로 갈수록 좁아지게 형성된 함몰홈과, 상기 함몰홈에 삽입되도록 상기 압력봉의 끝단면에 형성된 원뿔형상의 압착돌기를 포함하는 것을 특징으로 한다.The present invention for achieving the above object, the ribs are formed by protruding from the insulating plate, the rib is inserted into the fixing hole of the electrical circuit, the rib is applied to the pressure rod from the top to permanently deform the rib and the insulating plate and In the structure for fixing the electric circuit, characterized in that it comprises a recessed groove formed to be narrowed toward the bottom to be recessed in the end surface of the rib, and a conical crimping projection formed on the end surface of the pressure rod to be inserted into the recessed groove do.

바람직하게 상기 압착돌기의 외측에는 단턱이 형성되어 상기 압착봉의 압력인가 시 상기 리브의 끝단이 사방으로 고루 펴지는 것을 특징으로 한다. Preferably, the stepped portion is formed on the outside of the pressing projections, characterized in that the end of the rib is evenly spread in all directions when the pressure of the pressing rod is applied.

한편, 전기회로의 고정 방법에 의하면, 절연판에 돌출되어 리브가 형성되고, 상기 리브가 전기회로의 고정홀에 삽입되고, 상기 리브를 상부에서 압력봉으로 압력을 가해 리브를 영구변형시킴으로서 상기 절연판과 전기회로를 고정하는 방법에 있어서, 상기 리브의 끝단면에 함몰되게 하부로 함몰홈을 형성하고, 상기 함몰홈에 상기 압력봉의 끝단에 원뿔형상의 압착돌기를 형성하여 상기 압력봉의 압착돌기를 상기 리브의 함몰홈에 압착하여 벌려주므로 상기 절연판에 전기회로를 고정한다.On the other hand, according to the fixing method of the electric circuit, a rib is formed by protruding from the insulating plate, the rib is inserted into the fixing hole of the electric circuit, and the rib is permanently deformed by applying pressure to the pressure rod from the upper portion of the insulating plate and the electric circuit. In the method of fixing, the recessed groove is formed to be recessed in the bottom end of the rib, the concave-shaped projection formed on the end of the pressure rod in the recessed groove in the pressing groove of the pressure rod recessed groove of the rib The electric circuit is fixed to the insulating plate because it is compressed to open.

상기한 고정 구조 및 고정 방법은 상기 함몰홈에 상기 압착돌기가 삽입되어 정확하게 가압됨으로, 상기 리브가 외측으로 고루 펼쳐지게 되어 조립이 용이하고, 소재의 한계가 없으며, 전기회로를 확실히 고정시켜 접촉 안정성을 증가시키는 장점이 있다.In the fixing structure and the fixing method, the crimping protrusion is inserted into the recessed groove so that it is pressurized accurately, so that the ribs are spread evenly to the outside, so that the assembly is easy, there is no limitation of the material, and the electric circuit is firmly fixed to increase the contact stability. It has the advantage of letting.

이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 설명한다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

또한, 본 실시예는 본 발명의 권리범위를 한정하는 것이 아니라 단지 예시로 제시된 것이며, 종래 구성과 동일한 부분은 동일한 부호 또는 명칭을 사용한다.In addition, this embodiment is presented by way of example only, not limiting the scope of the present invention, the same parts as the conventional configuration uses the same reference numerals or names.

도 2는 본 발명에 따른 전기회로 고정 구조를 나타낸 사시도이고, 도 3은 본 발명에 따른 전기회로 고정 구조를 나타낸 작동 상태도이며, 도 4는 본 발명에 따 른 전기회로 고정 방법을 나타낸 순서도이다.2 is a perspective view showing an electric circuit fixing structure according to the present invention, FIG. 3 is an operational state diagram showing the electric circuit fixing structure according to the present invention, and FIG. 4 is a flowchart showing the electric circuit fixing method according to the present invention.

도시한 바와 같이, 본 발명에 따른 전기회로 고정구조는 절연판(30)에 돌출되어 리브(32)가 전기회로(20)의 고정홀(22)에 삽입되고, 상기 리브(32)를 상부에서 압력봉(40)으로 압력을 가하여 영구변형시킴으로서 상기 절연판(30)과 전기회로(20)를 고정하는 구조에 있어서, 상기 리브(32)의 끝단면에 형성된 함몰홈(34)과 상기 압력봉(40)의 끝단면에 형성된 압착돌기(42)로 이루어져 있다.As shown, the electric circuit fixing structure according to the present invention is protruded to the insulating plate 30, the rib 32 is inserted into the fixing hole 22 of the electric circuit 20, the rib 32 is pressured from the top In the structure for fixing the insulating plate 30 and the electric circuit 20 by applying a pressure to the rod 40, the recessed groove 34 and the pressure rod 40 formed on the end surface of the rib 32 Consists of a crimping projection 42 formed on the end surface of the).

상기 함몰홈(34)은 상기 리브(32)의 끝단면에 함몰되게 형성되며, 하부로 갈수록 좁아지게 형성된다.The recess 34 is formed to be recessed in the end surface of the rib 32, it is formed narrower toward the bottom.

그리고, 상기 압착돌기(42)는 상기 압력봉(40)의 끝단면에서 원뿔형상으로 돌출되어 형성된다.In addition, the pressing protrusion 42 is formed to protrude in a conical shape from the end surface of the pressure bar (40).

바람직하게 상기 압착돌기(42)의 외주면에는 단턱이 형성되어 상기 압력봉(40)의 압력인가 시 상기 리브(32)의 끝단이 사방으로 고루 펴지도록 하고, 상기 단턱(44)이 내측으로 소정 오목하게 형성된다.Preferably, the outer circumferential surface of the crimping protrusion 42 is formed with a stepped jaw so that the end of the rib 32 is spread evenly in all directions when the pressure of the pressure bar 40 is applied, and the step 44 is recessed inwardly. Is formed.

한편, 고정 방법에 의하면, 절연판(30)에 돌출되어 리브(32)가 형성되고, 상기 리브(32)가 전기회로(20)의 고정홀(22)에 삽입되고, 상기 리브(32)를 상부에서 압력봉(40)으로 압력을 가해 리브(32)를 영구변형시킴으로서 상기 절연판(30)과 전기회로(20)를 고정하는 방법에 있어서, 상기 리브(32)의 끝단면에 함몰되게 하부로 함몰홈(34)을 형성(S10)하고, 상기 함몰홈(34)이 형성된 리브(32)를 고정홀(22)에 삽입하여 전기회로(20)를 결합(S20)하며, 상기 함몰홈(34)에 상기 압력봉(40)의 끝단에 원뿔형상의 압착돌기(42)를 형성하여 상기 압력봉(40)의 압착돌기(42)를 상기 리브(32)의 함몰홈(34)에 압착하여 벌려주므로(S30) 상기 절연판(30)에 전기회로(20)를 고정한다.On the other hand, according to the fixing method, the rib 32 is formed by protruding from the insulating plate 30, the rib 32 is inserted into the fixing hole 22 of the electrical circuit 20, the rib 32 is the upper portion In the method for fixing the insulating plate 30 and the electrical circuit 20 by applying a pressure to the pressure rod 40 in the permanent deformation of the rib 32, the recessed downward to be recessed in the end surface of the rib 32 The groove 34 is formed (S10), the rib 32 having the recessed groove 34 is inserted into the fixing hole 22 to couple the electric circuit 20 (S20), the recessed groove 34 Since the conical crimping projection 42 is formed at the end of the pressure bar 40, the crimping projection 42 of the pressure bar 40 is compressed to the recessed recess 34 of the rib 32 to open. S30) The electric circuit 20 is fixed to the insulating plate 30.

이하, 상기 전기회로 고정구조에 대한 작용 및 효과를 설명하도록 한다.Hereinafter, the operation and effects on the electric circuit fixing structure will be described.

우선, 상기 전기회로(20)의 가장자리에는 고정홀(22)이 형성되고, 하부에는 접하도록 절연판(30)이 구비된다.First, a fixing hole 22 is formed at an edge of the electric circuit 20, and an insulating plate 30 is provided to contact the lower portion thereof.

상기 절연판(30)에는 상부로 돌출되어 상기 전기회로(20)의 고정홀(22)에 삽입되는 리브(32)가 일체로 형성된다.The insulating plate 30 is integrally formed with a rib 32 protruding upward and inserted into the fixing hole 22 of the electric circuit 20.

상기 리브(32)의 끝단면에는 함몰홈(34)을 형성한다(S10). 상기 함몰홈(34)이 형성된 리브(32)는 상기 전기회로(20)에 형성된 고정홀(22)에 삽입(S20)된다.A recessed groove 34 is formed in the end surface of the rib 32 (S10). The rib 32 having the recessed groove 34 is inserted into the fixing hole 22 formed in the electric circuit 20 (S20).

상기 리브(32)를 상기 고정홀(22)에 삽입한 후에 상부에서 압력봉(40)으로 가압(S30)한다.After the rib 32 is inserted into the fixing hole 22, the pressure 32 is applied to the pressure rod 40 from the top (S30).

이때, 상기 리브(32)의 끝단면에는 함몰홈(34)가 형성되어 있고, 상기 압력봉(40)의 끝단면에는 원뿔형상의 압착돌기(42)가 형성되어 있어 상기 압착돌기(42)가 상기 함몰홈(34)에 삽입되며, 상기 압착돌기(42)의 외주면에는 단턱(44)이 형성되어 상기 함몰홈(34)의 주변 상단면과 접하게하여 가압한다.At this time, a recessed groove 34 is formed in the end surface of the rib 32, and a conical crimping protrusion 42 is formed in the end surface of the pressure bar 40, so that the crimping protrusion 42 is Is inserted into the recessed groove 34, the stepped 44 is formed on the outer circumferential surface of the pressing projection 42 is in contact with the upper peripheral surface of the recessed groove 34 to press.

상기 함몰홈(34)과 압착돌기(42) 삽입에 의해 정확하게 가압됨으로써, 파손의 우려을 미연에 방지할 수 있다.By accurately pressing by the recessed groove 34 and the pressing projection 42, it is possible to prevent the risk of damage in advance.

상기 압력봉(40)의 가압력에 의해 상기 리브(32)는 상기 전기회로(20)의 고정홀(22) 외측에서 영구변형되어 상기 고정홀(22)의 상부로 돌출된 리브(32)의 면적이 상기 고정홀(22)의 직경보다 넓어지므로 상기 전기회로(20)와 절연판(30)이 고정되어 회로판(50) 구성을 완료시킨다.The rib 32 is permanently deformed outside the fixing hole 22 of the electric circuit 20 by the pressing force of the pressure bar 40, and the area of the rib 32 protruding to the upper portion of the fixing hole 22. Since the diameter of the fixing hole 22 is wider, the electric circuit 20 and the insulating plate 30 are fixed to complete the circuit board 50.

상기 압착돌기(42)의 외주면에는 내측으로 소정 오목한 단턱(44)에 의해 상기 리브(32)의 함몰홈(34) 외측면이 하부로 눌리면서 외측으로 과도하게 벗어나지 않도록 모아준다.The outer circumferential surface of the crimping projection 42 is gathered so that the outer surface of the recessed groove 34 of the rib 32 is pressed downward by an inner concave step 44 so as not to excessively escape outward.

상기 리브(32)의 압착된 형태가 정확하게 나오므로, 탄성을 갖는 플라스틱 재료의 한계를 없어 절연판(30)의 재료변경이 가능하다.Since the crimped shape of the ribs 32 is accurately produced, the material of the insulating plate 30 can be changed without the limitation of the plastic material having elasticity.

또한, 절연판(30)에 전기회로(20)를 확실하게 고정시킴으로 접촉안전성을 높이는 장점이 있다.In addition, there is an advantage to increase the contact safety by fixing the electric circuit 20 to the insulating plate 30 reliably.

상기한 바와 같이 본 발명에 따른 전기회로 고정구조에 의하면 절연판에 형성된 리브의 상단면에 함몰홈을 형성하고, 리브를 가압하는 압력봉의 하단면에 원뿔형상의 압착돌기를 형성하여 상기 함몰홈과 압착돌기의 삽입에 의해 정확하게 가압함으로 파손의 우려를 미연에 방지할 수 있으며, 상기 리브의 압착된 형태가 정확하게 나오므로 플라스틱 재료의 한계를 없애고, 양산체제의 실현이 가능하다.As described above, according to the electric circuit fixing structure according to the present invention, a recessed groove is formed in the upper surface of the rib formed in the insulating plate, and a conical crimp protrusion is formed on the lower surface of the pressure rod for pressing the rib. It is possible to prevent the risk of damage in advance by precisely pressurized by inserting, and since the crimped form of the ribs is accurately released, eliminating the limitation of the plastic material and realizing the mass production system.

또한, 전기회로를 확실하게 고정시켜줌으로서, 접촉 안정성을 증가시키는 효과가 있다.In addition, by reliably fixing the electric circuit, there is an effect of increasing the contact stability.

Claims (3)

절연판에 돌출되어 리브가 형성되고, 상기 리브가 전기회로의 고정홀에 삽입되고, 상기 리브를 상부에서 압력봉으로 압력을 가해 리브를 영구변형시킴으로서, 상기 절연판과 전기회로를 고정하는 구조에 있어서,In the structure of fixing the insulating plate and the electric circuit by forming a rib protruding to the insulating plate, the rib is inserted into the fixing hole of the electrical circuit, and the rib is permanently deformed by applying pressure to the pressure rod from the top, 상기 리브의 끝단면에 함몰되게 하부 갈수록 좁아지게 형성된 함몰홈과;A recessed groove formed to be narrowed toward the bottom so as to be recessed in the end surface of the rib; 상기 함몰홈에 삽입되도록 상기 압력봉의 끝단면에 형성된 원뿔형상의 압착돌기를 포함하고;A conical crimping protrusion formed on an end surface of the pressure bar to be inserted into the recessed groove; 상기 압착돌기의 외측에는 단턱이 형성되어 상기 압착봉의 압력인가 시 상기 리브의 끝단이 사방으로 고루 펴지는 것을 특징으로 하는 전기회로의 고정구조.A stepped portion is formed on an outer side of the pressing protrusion, and the end of the rib is stretched evenly in all directions when the pressure of the pressing rod is applied. 삭제delete 삭제delete
KR1020050105893A 2005-11-07 2005-11-07 Structure of fixing an electric circuit KR100692183B1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0525764A (en) * 1991-02-04 1993-02-02 Lion Corp Water-dispersible nonwoven fabric
JPH079060A (en) * 1993-06-25 1995-01-13 Omron Corp Caulking head and caulking device, and fixing method using this device
KR970033759A (en) * 1995-12-29 1997-07-22 김광호 Welding part structure and welding device
JP2000121757A (en) 1998-10-20 2000-04-28 Citizen Watch Co Ltd Coil winding core for clock, connection structure of circuit substrate, and its connection method
JP2001340928A (en) 2000-05-31 2001-12-11 Aisin Seiki Co Ltd Caulking method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0525764A (en) * 1991-02-04 1993-02-02 Lion Corp Water-dispersible nonwoven fabric
JPH079060A (en) * 1993-06-25 1995-01-13 Omron Corp Caulking head and caulking device, and fixing method using this device
KR970033759A (en) * 1995-12-29 1997-07-22 김광호 Welding part structure and welding device
JP2000121757A (en) 1998-10-20 2000-04-28 Citizen Watch Co Ltd Coil winding core for clock, connection structure of circuit substrate, and its connection method
JP2001340928A (en) 2000-05-31 2001-12-11 Aisin Seiki Co Ltd Caulking method

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