KR19990084206A - Connection methods of coil for thin sheet buzzer using spot welding - Google Patents
Connection methods of coil for thin sheet buzzer using spot welding Download PDFInfo
- Publication number
- KR19990084206A KR19990084206A KR1019990041578A KR19990041578A KR19990084206A KR 19990084206 A KR19990084206 A KR 19990084206A KR 1019990041578 A KR1019990041578 A KR 1019990041578A KR 19990041578 A KR19990041578 A KR 19990041578A KR 19990084206 A KR19990084206 A KR 19990084206A
- Authority
- KR
- South Korea
- Prior art keywords
- coil
- metal pattern
- spot welding
- buzzer
- thin plate
- Prior art date
Links
- 238000003466 welding Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 24
- 229910052751 metal Inorganic materials 0.000 claims abstract description 79
- 239000002184 metal Substances 0.000 claims abstract description 79
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000003825 pressing Methods 0.000 claims abstract description 3
- 230000001681 protective effect Effects 0.000 claims description 11
- 229910000679 solder Inorganic materials 0.000 claims description 7
- 239000006071 cream Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 2
- 239000003822 epoxy resin Substances 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 2
- 229910052742 iron Inorganic materials 0.000 description 6
- ZGHQUYZPMWMLBM-UHFFFAOYSA-N 1,2-dichloro-4-phenylbenzene Chemical compound C1=C(Cl)C(Cl)=CC=C1C1=CC=CC=C1 ZGHQUYZPMWMLBM-UHFFFAOYSA-N 0.000 description 5
- LAHWLEDBADHJGA-UHFFFAOYSA-N 1,2,4-trichloro-5-(2,5-dichlorophenyl)benzene Chemical compound ClC1=CC=C(Cl)C(C=2C(=CC(Cl)=C(Cl)C=2)Cl)=C1 LAHWLEDBADHJGA-UHFFFAOYSA-N 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 238000005476 soldering Methods 0.000 description 4
- 239000010949 copper Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- BWWVXHRLMPBDCK-UHFFFAOYSA-N 1,2,4-trichloro-5-(2,6-dichlorophenyl)benzene Chemical compound C1=C(Cl)C(Cl)=CC(Cl)=C1C1=C(Cl)C=CC=C1Cl BWWVXHRLMPBDCK-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- SBYXRAKIOMOBFF-UHFFFAOYSA-N copper tungsten Chemical compound [Cu].[W] SBYXRAKIOMOBFF-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 150000003071 polychlorinated biphenyls Chemical class 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/10—Spot welding; Stitch welding
- B23K11/11—Spot welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/002—Resistance welding; Severing by resistance heating specially adapted for particular articles or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Resistance Welding (AREA)
Abstract
본 발명은 박판부저를 이루는 PCB의 금속패턴이나 하우징에 몰딩된 금속판에 여자코일 접속시 코일에 손상을 주지 않고 내구성을 유지하면서 견고하게 접속할 수 있도록 하는 스폿용접에 의한 박판부저의 코일 접속방법에 관한 것이다.The present invention relates to a coil connecting method of a thin plate buzzer by spot welding, which can be firmly connected to a metal pattern of a PCB forming a thin plate buzzer or a metal plate molded in a housing without damaging the coil while maintaining the durability. will be.
본 발명에 따른 스폿용접에 의한 박판부저의 코일 접속방법은, 프레임의 철심에 감겨진 코일의 양단을 PCB에 형성된 금속패턴이나 하우징에 몰딩된 금속판에 접속하는 박판부저의 코일 접속방법에 있어서, 상기 금속패턴이나 금속판을 접지에 접속하고, 상기 금속패턴이나 금속판에 안착된 코일을 전극봉으로 압착하면서 순간적으로 대전류(Heavy current)를 가하는 스폿용접으로 코일을 금속패턴이나 금속판에 접속함을 특징으로 한다.In the coil connecting method of the thin plate buzzer by spot welding according to the present invention, in the coil connecting method of the thin plate buzzer connecting both ends of the coil wound around the iron core of the frame to the metal pattern formed on the PCB or the metal plate molded to the housing, The metal pattern or the metal plate is connected to the ground, and the coil is seated on the metal pattern or the metal plate by pressing the electrode rod, the spot welding to apply instantaneous heavy current (Heavy current) is characterized in that the coil is connected to the metal pattern or the metal plate.
본 발명에 의하면, PCB의 패턴에 코일을 접속할 때 발생되는 단선불량을 줄여 생산라인에서의 진행성 불량율을 줄일 수 있을 뿐만 아니라 코일을 접속하는 작업을 단순화하고 작업시간을 줄여 박판부저를 생산하는 생산라인을 자동화할 수 있는 효과가 있다.According to the present invention, the production line for producing a thin plate buzzer by reducing the disconnection defect generated when connecting the coil to the PCB pattern can reduce the progress defect rate in the production line as well as simplify the work of connecting the coil and reduce the working time It has the effect of automating.
Description
본 발명은 스폿용접(spot welding)에 의한 박판부저의 코일 접속방법에 관한 것으로서, 더욱 상세하게는 박판부저를 이루는 PCB의 금속패턴이나 하우징에 몰딩된 금속판에 여자코일 접속시 코일에 손상을 주지 않고 내구성을 유지하면서 견고하게 접속할 수 있도록 하는 스폿용접에 의한 박판부저의 코일 접속방법에 관한 것이다.The present invention relates to a coil connecting method of a thin plate buzzer by spot welding, and more particularly, does not damage a coil when an excitation coil is connected to a metal pattern of a PCB forming a thin plate buzzer or a metal plate molded to a housing. The present invention relates to a coil connecting method of a thin plate buzzer by spot welding which can be connected firmly while maintaining durability.
도1은 박판부저를 이루는 종래의 PCB(101:Printed Circuit Board)를 도시한 것으로서, 소정의 금속패턴(105:pattern)이 형성된 PCB(101)의 상부에는 프레임(102)과 이의 중앙에 입설된 철심(103) 그리고 이에 감겨진 코일(104) 등이 구비되어 있다.FIG. 1 illustrates a conventional printed circuit board (PCB) 101 forming a thin plate buzzer. The PCB 102 is formed on a frame 102 and a center of the PCB 101 on which a predetermined metal pattern 105 is formed. The iron core 103 and the coil 104 wound thereon are provided.
이 PCB(101) 상부에 형성된 금속패턴(105)은 다른 PCB 등에 접속될 수 있도록 밑면까지 연장되어 있으며, 이 패턴(105)의 일측에는 코일(104)의 양단이 납땜으로 연결되어 있다.The metal pattern 105 formed on the PCB 101 is extended to the bottom surface so as to be connected to other PCBs, etc., and both ends of the coil 104 are connected to one side of the pattern 105 by soldering.
이렇게 PCB(101)의 금속패턴(105)에 코일(104)의 양단을 접속하는 과정을 살펴보면, 작업자는 가열된 인두를 이용하여 코일(104)을 덮고 있는 절연막(106)을 벗긴다. 그리고, PCB(101)의 금속패턴(105)에 절연막(106)이 벗겨진 코일(104)을 대고 도2와 같이 해당 부분을 납땜(107)한다.Looking at the process of connecting both ends of the coil 104 to the metal pattern 105 of the PCB 101, the worker peels off the insulating film 106 covering the coil 104 by using a heated iron. Then, the coil 104 having the insulating film 106 peeled off is applied to the metal pattern 105 of the PCB 101, and the corresponding portion is soldered 107 as shown in FIG.
그러나, 330℃∼380℃의 고열이 발생되는 인두를 이용하여 코일(104)의 절연막(106)을 제거하기 때문에 인두와 처음 만나는 부분에 도2에서와 같이 에지부분(108)이 형성되어 외부충격이나 작업 중 에지부분(108)이 쉽게 단선되어 생산라인에서의 진행성 불량이 발생될 뿐만 아니라 작업자가 일일이 납땜작업을 실시해야 하므로 해당 부분이 자동화되지 못한다.However, since the insulating film 106 of the coil 104 is removed using a iron that generates high heat of 330 ° C to 380 ° C, the edge portion 108 is formed at the first encounter with the iron as shown in FIG. In addition, the edge portion 108 is easily disconnected during the operation, so that not only the progression defect in the production line is generated, but also the operator is required to perform soldering work one by one, so that the portion is not automated.
또한, 코일(104)을 이루는 구리(Cu)에 인두에서 발생되는 고열이 직접적으로 가해지면서 해당 부분이 열화되어 코일의 강도가 낮아져 단선의 원인이 된다.In addition, the high heat generated in the iron is directly applied to the copper (Cu) constituting the coil 104, the corresponding portion is deteriorated and the strength of the coil is lowered, causing a disconnection.
본 발명의 목적은, 하우징에 몰딩된 금속판이나 PCB의 금속패턴에 코일을 접속할 때 발생되는 단선불량을 줄여 생산라인에서의 진행성 불량을 줄이는 한편, 코일의 접속작업을 단순화하고 작업시간을 줄여 생산라인을 자동화할 수 있도록 하는 스폿용접에 의한 박판부저의 코일 접속방법을 제공함에 있다.An object of the present invention is to reduce the disconnection defects generated when connecting the coil to the metal plate or the metal pattern of the PCB molded in the housing to reduce the progress defect in the production line, while simplifying the connection work of the coil and reduce the working time production line It is to provide a coil connecting method of the thin plate buzzer by spot welding to automate.
또한, 본 발명의 다른 목적은 하우징에 몰딩된 금속판이나 PCB에 형성된 금속패턴에 코일을 접속할 때 코일에 가해지는 열에 의해 열화되어 코일의 강도가 떨어지며, 금속판의 몰딩 부분 또한 변형되는 것을 방지할 수 있도록 하는 스폿용접에 의한 박판부저의 코일 접속방법을 제공함에 있다.In addition, another object of the present invention is to be deteriorated by the heat applied to the coil when connecting the coil to a metal plate molded in the housing or a metal pattern formed on the PCB to reduce the strength of the coil, to prevent the molding portion of the metal plate is also deformed The present invention provides a coil connecting method of a thin plate buzzer by spot welding.
도1은 종래 박판부저를 구성하는 하우징의 일 예를 나타내는 사시도이다.1 is a perspective view showing an example of a housing constituting a conventional thin plate buzzer.
도2는 종래 인두를 이용하여 PCB의 금속패턴에 코일이 접속된 상태를 나타내는 단면도이다.2 is a cross-sectional view showing a state in which a coil is connected to a metal pattern of a PCB using a conventional iron.
도3은 본 발명에 따른 스폿용접 장치를 개략적으로 도시한 구성도이다.Figure 3 is a schematic diagram showing a spot welding apparatus according to the present invention.
도4a는 본 발명에 따른 박판부저를 구성하는 하우징의 일 예를 나타내는 사시도이다.Figure 4a is a perspective view showing an example of a housing constituting a thin plate buzzer according to the present invention.
도4b는 본 발명에 따른 박판부저를 구성하는 하우징의 일 예를 나타내는 저면도이다.Figure 4b is a bottom view showing an example of a housing constituting a thin plate buzzer according to the present invention.
도5a는 본 발명의 일 실시예에 따른 스폿용접으로 금속판에 코일이 접속된 상태를 나타내는 단면도이다.5A is a cross-sectional view showing a coil connected to a metal plate by spot welding according to an embodiment of the present invention.
도5b는 본 발명의 일 실시예에 따른 스폿용접으로 금속판에 코일이 접속된 상태를 나타내는 평면도이다.5B is a plan view showing a coil connected to a metal plate by spot welding according to an embodiment of the present invention.
도6은 본 발명의 다른 실시예에 따른 스폿용접으로 금속판에 코일이 접속된 상태를 나타내는 단면도이다.6 is a cross-sectional view showing a coil connected to a metal plate by spot welding according to another embodiment of the present invention.
※ 도면의 주요 부분에 대한 부호의 설명 ※※ Explanation of code about main part of drawing ※
1 : 아암 2 : 전극봉1 arm 2 electrode
3 : 금속판 4 : 지지판3: metal plate 4: support plate
5 : 접지봉 6, 6a : 절연막5: ground rod 6, 6a: insulating film
7, 7a : 코일심선 8, 8a : 용접부분7, 7a: coil core 8, 8a: welded part
9, 9a : 에지부분 10, 10a : 보호막9, 9a: edge portion 10, 10a: protective film
11 : 금속패턴 12 : PCB11 metal pattern 12 PCB
13, 13a, 21 : 코일 14 : 1차 전도층13, 13a, 21: coil 14: primary conductive layer
15 : 2차 전도층 16 : 관통공15: secondary conductive layer 16: through hole
17 : 하우징 18 : 철심17 housing 18 iron core
19 : 프레임 20 : 터미널19: frame 20: terminal
상기한 바와 같은 목적을 달성하기 위한 본 발명에 따른 스폿용접에 의한 박판부저의 코일 접속방법은, 프레임의 철심에 감겨진 코일의 양단을 PCB에 형성된 금속패턴이나 하우징에 몰딩된 금속판에 접속하는 박판부저의 코일 접속방법에 있어서, 상기 금속패턴이나 금속판을 접지에 접속하고, 상기 금속패턴이나 금속판에 안착된 코일을 고압침봉으로 압착하면서 순간적으로 대전류(Heavy current)를 가하는 스폿용접으로 코일을 금속패턴이나 금속판에 접속함을 특징으로 한다.In the coil connecting method of the thin plate buzzer by spot welding according to the present invention for achieving the above object, a thin plate connecting both ends of the coil wound around the iron core of the frame to a metal pattern formed on the PCB or a metal plate molded to the housing In the coil connecting method of the buzzer, the metal pattern or the metal plate is connected to the ground, and the coil is seated on the metal pattern or the metal plate by pressing a high-pressure needle while the spot welding to apply a heavy current instantaneously (heavy current) Or a metal plate.
여기서, 상기 금속패턴 하단의 PCB에 상기 금속패턴과 연통되는 관통홀이 형성되고, 상기 관통홀에 전도성 물질이 충진되어 접지와 금속패턴이 접속되도록 이루어지는 것이 적절하다.Here, it is preferable that a through hole communicating with the metal pattern is formed in the PCB below the metal pattern, and a conductive material is filled in the through hole to connect the ground and the metal pattern.
본 발명의 다른 실시예로서는 상기 PCB 금속패턴이나 금속판의 상부에 용접된 코일 부위를 보호하기 위한 보호막을 도포하는 단계;를 더 구비하여 코일을 보호할 수 있다.Another embodiment of the present invention may further include the step of applying a protective film for protecting the welded coil portion on the upper portion of the PCB metal pattern or metal plate;
이러한 보호막의 일예로서는, 크림솔더(cream solder or Solder paste)나 에폭시(epoxy)수지 및 실리콘(Silicone) 등을 사용할 수 있다.As an example of such a protective film, a cream solder or solder paste, an epoxy resin, silicon, or the like can be used.
또한, 상기 보호막은 상기 PCB의 금속패턴이나 하우징에 몰딩된 금속판에 용접된 코일의 용접부분과 에지부분보다 더 넓게 형성되어서 코일, 즉 용접시 코일에 형성된 에지부분까지 보호할 수 있도록 하는 것이 바람직하다.In addition, the protective layer is preferably formed to be wider than the welded portion and the edge portion of the coil welded to the metal pattern of the PCB or the metal plate molded in the housing to protect the coil, that is, the edge portion formed in the coil during welding. .
이하, 첨부된 도면들에 의거하여 본 발명에 대한 구성 및 동작을 상세히 서술한다.Hereinafter, the configuration and operation of the present invention will be described in detail with reference to the accompanying drawings.
도3은 하우징에 몰딩된 금속판이나 PCB의 금속패턴에 코일을 스폿용접하기 위한 용접장치의 일부분을 나타내는 개략도로서, 미도시된 헤드에 결합되어 콘트롤러의 제어로 상하 이동하는 아암(1:크롬동을 사용할 수 있다)의 단부에는 대전류가 인가되는 전극봉(2:텅스텐동을 사용할 수 있다)이 하향지게 장착되어 있으며, 이 전극봉(2)과 소정거리 이격되는 하부에는 접지된 접지봉(5)이 지지판(4)을 관통하여 하우징에 몰딩된 금속판(3)이나 PCB의 금속패턴에 닿도록 설치되어 있다.3 is a schematic view showing a part of a welding apparatus for spot welding a coil to a metal plate molded in a housing or a metal pattern of a PCB, and an arm (1: chrome copper) coupled to an unshown head and moving up and down under the control of a controller; At the end of the electrode rod (2: tungsten copper can be used) is mounted downward, and the grounding rod (5) grounded at the bottom spaced apart from the electrode rod (2) by a predetermined distance is supported at the end of the support plate ( 4) It is installed to penetrate the metal plate 3 molded in the housing or the metal pattern of the PCB.
여기서, 전극봉(2)과 접지봉(5)의 단부는 흐르는 전류를 한 곳으로 모아 줄 수 있도록 뽀족하게 구성되어 있다.Here, the ends of the electrode 2 and the grounding rod 5 is configured to be pointed to collect the current flowing in one place.
본 발명의 동작을 설명하기에 앞서 박판부저를 이루는 하우징의 일 예를 도4a와 도4b에 의해 보면, 절연물질인 하우징(17) 내에는 프레임(19)과 터미널(20)이 일체형으로 몰딩되어 있으며, 중앙에 철심(18)이 입설된 프레임(19)의 상부는 외부로 노출되어 있으며, 이 철심(18)에는 코일(21)이 감겨져 있다. 그리고, 터미널(20)은 상부와 하부로 각각 노출되어 있으며, 하부로 노출된 부분에는 코일(21)의 양단에 접속되어 있다.Before describing the operation of the present invention, an example of a housing forming a thin plate buzzer will be described with reference to FIGS. 4A and 4B. In the housing 17 which is an insulating material, the frame 19 and the terminal 20 are integrally molded. The upper portion of the frame 19 in which the iron core 18 is placed in the center is exposed to the outside, and the coil 21 is wound around the iron core 18. The terminals 20 are exposed to the upper and lower portions, respectively, and the portions exposed to the lower portions are connected to both ends of the coil 21.
이렇게 구성된 용접장치를 이용하여 하우징에 몰딩된 금속판에 코일을 스폿용접하는 일 실시예를 도5a와 도5b에 의하여 살펴보면, 먼저 스폿용접하기 위한 코일(13)을 금속판(3:하우징에 몰딩된 상태를 말한다) 위에 올려놓고, 용접하기 위한 부위가 전극봉(2)의 하단에 위치하도록 금속판(3)을 지지판(4) 위에 올려 놓는다.5A and 5B, an embodiment of spot welding a coil on a metal plate molded in a housing using the welding device configured as described above is described. First, the coil 13 for spot welding is molded into a metal plate 3: in a housing. The metal plate 3 is placed on the support plate 4 so that the site for welding is located at the lower end of the electrode 2.
그리고, 콘트롤러를 통한 제어로 헤드에 결합된 아암(1)을 아래로 이동시켜 전극봉(2)에 의해 금속판(3)과 이에 올려진 코일(13)이 도5b와 같이 압착되도록 한 후 전극봉(2)에 대 전류를 순간적으로 공급하여 스파크를 발생시킨다.Then, the arm 1 coupled to the head is moved downward by the control through the controller so that the metal plate 3 and the coil 13 mounted thereon are compressed by the electrode 2 as shown in FIG. ) To supply a large current instantaneously to generate sparks.
이에 따라 도5a, 5b에서와 같이 전극봉(2)의 단부에 닿은 코일(13), 즉 코일심선(7)을 덮고 있던 절연막(6)이 제거되는 한편, 코일심선(7)이 금속판(3)에 융착된다.As a result, as shown in FIGS. 5A and 5B, the insulating film 6 covering the coil 13, that is, the coil core 7, which touches the end of the electrode 2 is removed, while the coil core 7 is removed from the metal plate 3. Is fused to.
이때 전극봉(2)의 단부는 코일(5)의 일정길이를 금속판(3)에 용접할 수 있도록 소정의 단면적을 갖는 것이 바람직하다.At this time, it is preferable that the end of the electrode 2 has a predetermined cross-sectional area so that a predetermined length of the coil 5 can be welded to the metal plate 3.
또한, 용접장치를 이용하여 PCB의 금속패턴에 코일을 스폿용접하는 다른 실시예를 도6에 의하여 살펴보면, 먼저 스폿용접하기 위한 코일(13a)을 PCB(12)의 금속패턴(11) 위에 올려놓고, 용접하기 위한 부위가 전극봉(2)의 하단에 위치하도록 PCB(12)를 미도시된 지지판 위에 올려 놓는다.In addition, referring to FIG. 6, another embodiment of spot welding a coil to a metal pattern of a PCB using a welding apparatus is described. First, the coil 13a for spot welding is placed on the metal pattern 11 of the PCB 12. , The PCB 12 is placed on the support plate not shown so that the site for welding is located at the bottom of the electrode 2.
여기서, 금속패턴(11) 하단의 PCB(12)에는 관통공(16)이 형성되어 있고, 이 관통공(16)에는 1차 전도층(14)과 2차 전도층(15)이 형성되어 하부에 맞닿은 접지봉(5)을 금속패턴(11)에 접속시킨다.Here, a through hole 16 is formed in the PCB 12 below the metal pattern 11, and the through hole 16 has a primary conductive layer 14 and a secondary conductive layer 15 formed therein. The ground rod 5 abutting on the metal pattern 11 is connected.
그리고, 콘트롤러를 통한 제어로 헤드에 결합된 아암(1)을 아래로 이동시켜 전극봉(2)에 의해 PCB(12)의 금속패턴(11)과 이에 올려진 코일(13a)이 압착되도록 한 후 전극봉(2)에 대전류를 순간적으로 공급하여 스파크를 발생시킨다.Then, by moving the arm (1) coupled to the head down by the control by the controller to the electrode rod (2) to press the metal pattern 11 and the coil (13a) mounted on the PCB 12 by the electrode rod A large current is instantaneously supplied to (2) to generate sparks.
이에 따라 도6에서와 같이 전극봉(2)의 단부에 닿은 코일(13a), 즉 코일심선(7a)을 덮고 있던 절연막(6a)이 제거되는 한편, 코일심선(7a)이 금속패턴(11)에 융착된다.As a result, as shown in FIG. 6, the insulating film 6a covering the coil 13a, that is, the coil core wire 7a, which touches the end of the electrode 2 is removed, while the coil core wire 7a is applied to the metal pattern 11. Fusion.
이때 전극봉(2)의 단부는 위에서와 같이 코일(13a)의 일정길이를 금속패턴(11)에 용접할 수 있도록 소정의 단면적을 갖는 것이 바람직하다.At this time, the end of the electrode 2 preferably has a predetermined cross-sectional area so as to weld a predetermined length of the coil 13a to the metal pattern 11 as above.
이렇게 일 실시예와 다른 실시예에서와 같이 하우징에 몰딩된 금속판(3)이나 PCB(12)의 금속패턴(11)에 코일(13)(13a)을 접속한 후 용접부분(8)(8a)을 보호막(10)(10a)으로 덮어 접속된 용접부분(8)(8a)을 보호할 수 있다. 특히, 스폿용접으로 약해진 코일(13)(13a)의 에지부분(9)(9a)까지 보호막(10)(10a)을 덮어 외부의 충격이나 기타 작업 중 코일(13)(13a)의 단부가 단락되는 것을 줄일 수 있는 것이다.Thus, the welding portions 8 and 8a are connected to the metal plate 3 molded in the housing or the metal pattern 11 of the PCB 12, as in the embodiment and the other embodiment. Can be covered with the protective films 10 and 10a to protect the welded portions 8 and 8a. In particular, the protective films 10 and 10a are covered to the edge portions 9 and 9a of the coils 13 and 13a weakened by spot welding, and the ends of the coils 13 and 13a are short-circuited during external impact or other operations. It can reduce the likelihood.
여기서, 보호막(10)(10a)으로 사용될 수 있는 것으로는 크림솔더(cream solder or Solder paste)나 에폭시(epoxy)수지 및 실리콘(Silicone) 등을 들 수 있다.Here, as the protective film 10 (10a) may be used, such as cream solder (solder paste) or epoxy (epoxy) resin and silicon (Silicone).
따라서, 본 발명에 의하면 하우징에 몰딩된 금속판이나 PCB의 금속패턴에 코일을 접속할 때 발생되는 단선불량을 줄여 생산라인에서의 진행성 불량율을 줄일 수 있을 뿐만 아니라 코일을 접속하는 작업을 단순화하고 작업시간을 줄여 박판부저를 생산하는 생산라인을 자동화할 수 있는 효과가 있다.Therefore, according to the present invention, it is possible to reduce the disconnection defect generated when connecting the coil to the metal plate or the metal pattern of the PCB molded in the housing, to reduce the progress defect rate in the production line, as well as simplify the work of connecting the coil and reduce the working time. In other words, it is effective to automate the production line to produce sheet buzzer.
또한, 본 발명은 하우징에 몰딩된 금속판이나 PCB의 금속패턴에 코일을 접속할 때 전극봉과 코일이 닿는 부분만 대전류에 의해 고열이 순간적으로 발생되므로 다른 부분으로의 열전도에 의한 변형이 거의 없다. 그러나, 종래의 납땜 인두와 실납(Solder wire)을 사용한 땜 작업시에는 고온(330℃∼380℃)의 팁(tip)을 수 초(Second) 동안 금속 패턴에 대고 있어야 하므로 열전도(Heat transfer)에 의한 코일의 열화에 의해 강도가 떨어지며 부근에 위치한 몰딩물의 변형을 가져오므로 부저의 특성에 치명적인 악영향을 줄 수 있다.In addition, in the present invention, when the coil is connected to the metal plate or the metal pattern of the PCB molded in the housing, only a portion where the electrode rod and the coil touch is instantaneously generated by high current, so that there is little deformation due to heat conduction to other parts. However, when soldering using a conventional soldering iron and a solder wire, a tip of a high temperature (330 ° C to 380 ° C) must be held on a metal pattern for a few seconds to prevent heat transfer. Due to the deterioration of the coil caused by the deterioration of the coil and bringing the deformation of the moldings located in the vicinity can have a fatal adverse effect on the characteristics of the buzzer.
이상에서 본 발명은 기재된 구체예에 대해서만 상세히 설명되었지만 본 발명의 기술 사상 범위내에서 다양한 변형 및 수정이 가능함은 당업자에게 있어서 명백한 것이며, 이러한 변형 및 수정이 첨부된 특허청구범위에 속함은 당연한 것이다.Although the present invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the present invention, and such modifications and modifications belong to the appended claims.
Claims (7)
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| Application Number | Priority Date | Filing Date | Title |
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| KR1019990041578A KR100319967B1 (en) | 1999-09-28 | 1999-09-28 | Connection methods of coil for thin sheet buzzer using spot welding |
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| KR1019990041578A KR100319967B1 (en) | 1999-09-28 | 1999-09-28 | Connection methods of coil for thin sheet buzzer using spot welding |
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| KR19990084206A true KR19990084206A (en) | 1999-12-06 |
| KR100319967B1 KR100319967B1 (en) | 2002-01-10 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100647880B1 (en) * | 2006-08-04 | 2006-11-23 | 양영미 | Method of installing injection connectors to a pcb |
| CN113560704A (en) * | 2021-09-27 | 2021-10-29 | 常州市福佑电子有限公司 | Spot welding device and method for buzzer production based on positioning and clamping |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE602005011788D1 (en) | 2004-09-15 | 2009-01-29 | M2Sys Co Ltd | SLIDING MECHANISM FOR OPENING AND CLOSING A MOBILE PHONE |
| US7967346B2 (en) | 2007-07-30 | 2011-06-28 | Laird Technologies Korea Yh | Slider mechanisms for opening and closing portable terminals |
| TW200950691A (en) | 2008-04-17 | 2009-12-01 | Laird Technologies Inc | EMI shielding slide assemblies for slidably opening and closing portable electronic devices and for providing EMI shielding for board-mounted electronic components |
| CN104021991B (en) * | 2014-05-28 | 2016-01-20 | 桂林航天电子有限公司 | Electromagnetic relay and the installation method thereof of protective circuit is suppressed with coil transient state |
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1999
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100647880B1 (en) * | 2006-08-04 | 2006-11-23 | 양영미 | Method of installing injection connectors to a pcb |
| CN113560704A (en) * | 2021-09-27 | 2021-10-29 | 常州市福佑电子有限公司 | Spot welding device and method for buzzer production based on positioning and clamping |
| CN113560704B (en) * | 2021-09-27 | 2021-12-17 | 常州市福佑电子有限公司 | Spot welding device and method for buzzer production based on positioning and clamping |
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