KR910003163Y1 - Automatic switching device for communications system - Google Patents

Automatic switching device for communications system Download PDF

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Publication number
KR910003163Y1
KR910003163Y1 KR2019870014957U KR870014957U KR910003163Y1 KR 910003163 Y1 KR910003163 Y1 KR 910003163Y1 KR 2019870014957 U KR2019870014957 U KR 2019870014957U KR 870014957 U KR870014957 U KR 870014957U KR 910003163 Y1 KR910003163 Y1 KR 910003163Y1
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South Korea
Prior art keywords
auxiliary
bimetal
heat coil
contact
contact point
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KR2019870014957U
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Korean (ko)
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KR890007773U (en
Inventor
정기호
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삼화전기공업 주식회사
정기호
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Priority to KR2019870014957U priority Critical patent/KR910003163Y1/en
Priority to IN1142/DEL/87A priority patent/IN170586B/en
Priority to CA000556062A priority patent/CA1333724C/en
Priority to US07/141,703 priority patent/US4851957A/en
Publication of KR890007773U publication Critical patent/KR890007773U/en
Application granted granted Critical
Publication of KR910003163Y1 publication Critical patent/KR910003163Y1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/18—Automatic or semi-automatic exchanges with means for reducing interference or noise; with means for reducing effects due to line faults with means for protecting lines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/14—Electrothermal mechanisms
    • H01H71/16—Electrothermal mechanisms with bimetal element
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T4/00—Overvoltage arresters using spark gaps
    • H01T4/08—Overvoltage arresters using spark gaps structurally associated with protected apparatus
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Fuses (AREA)
  • Thermally Actuated Switches (AREA)

Abstract

내용 없음.No content.

Description

통신용 보안기의 전류자동 단속장치Current automatic control device of communication security device

제1도는 본 고안의 회로구성상태를 나타낸 한 예시도.1 is an exemplary view showing a circuit configuration state of the present invention.

제2도는 (a)(b)는 제1도의 동작상태를 나타낸 설명도로서,(a)는 정상상태를 나타낸 것이고, (b)는 과전류상태를 나타낸 것이다.2 (a) and 2 (b) are explanatory diagrams showing an operating state of FIG. 1, (a) shows a steady state, and (b) shows an overcurrent state.

제3도는 본 고안의 회로구성상태를 나타낸 다른 예시도이다.3 is another exemplary view showing a circuit configuration state of the present invention.

제4도의 (a)(b)는 본 고안에 부설된 안전장치를 나타낸 일부단면도로서,(a)는 정상상태를 나타낸 것이고, (b)는 지속적인 과전류 인입시 인입과전류가 어스측으로 바이패스 되는 경우를 나타낸 것이다.(A) (b) of FIG. 4 is a partial cross-sectional view showing the safety device installed in the present invention, (a) is a normal state, (b) is a case where the incoming over-current is bypassed to the earth side during continuous over-current It is shown.

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

1 : 보조히트코일 2 : 주히트코일1: auxiliary heat coil 2: main heat coil

3 : 어스부 E,E',E",E'": 접점3: Earth part E, E ', E ", E'": contact

4,4a : 6 바이메탈 7 : 하우징4,4a: 6 bimetal 7: housing

11 : 스프링 12 : 저용응납11: spring 12: low melting solder

본 고안은 본인의 선출원인 제87-10075호를 개량한 보안기의 전류자동단속장치에 관한 것이다.The present invention relates to a current automatic control device for a security device, which is an improvement of my prior application No. 87-10075.

상기 본인의 선출원인 제87-10075호는 별도의 보조히트코일을 주히트코일 앞부분에 접속하고 이를 바이메탈에 연결시키거나 주히트코일의 앞부분 접점에 한 바이메탈을 장치하고, 이 바이메탈과 접탈되는 타바이메탈과 어스부간에 보조히트코일을 설치하여 된 것으로서, 과전류의 인입으로 주히트코일이 가열하여 양바이메탈의 접점이 접촉됨과 동시에 보조히트코일이 가열되므로 주히트코일이 전류차단에 의해 식어진다하더라도 보조히트코일에 의하여 양바이메탈의 접점이 접촉된 상태를 지속시켜줌은 물론 인입선측의 과전류 요인이 해소되어 정상치로 회복되면 보조히트코일도 식어져 바이메탈의 접점이 개방토록 된 것으로 이는 고압선 등의 접촉으로 과전류가 지속적으로 인입된다 하더라도 바이메탈의 반복접탈동작을 방지할 수 있어 과전류로 인한 통신기기측의 악영향과 바이메탈의 접점손상을 방지할 수 있는 잇점은 있으나, 지속적인 과전류 인입시 보조히트코일의 부하로 인한 미세한 전류가 통신기기측으로 계속 인입되게 되므로 통신기기는 비정격전류로 인한 인벨런스로 인해 고장의 우려가 있었고 특히 장시간 지속되는 과전류로 인한 보조코일의 과열로 보안기의 하우징 등이 발화 및 화재의 위험을 방지하지 못하는 폐단이 있었다.No. 87-10075, the applicant's prior application, connects a separate auxiliary heat coil to the front part of the main heat coil and connects it to the bimetal, or installs a bimetal on the front contact point of the main heat coil, and is contacted with the bimetal. Auxiliary heat coil is installed between the earth and the earth part.As the main heat coil is heated by the inflow of over current, the contacts of both bimetals are contacted and the auxiliary heat coil is heated, so even though the main heat coil is cooled by the current cutoff, the auxiliary heat is cooled. As the coil maintains the contact state between the bi-metal contacts, and the overcurrent factor on the lead wire is resolved and the normal value is restored, the auxiliary heat coil cools down so that the contact of the bimetal is opened. Even if it is continuously drawn, overcurrent can be prevented by repeated desorption operation of bimetal Although there is an advantage to prevent the adverse effect on the communication device side and the damage of the bimetal contact due to the micro-current, the minute current due to the load of the auxiliary heat coil is continuously drawn to the communication device side in case of continuous over current inflow. There was a risk of failure due to the involvement. Especially, the housing of the security device could not prevent the risk of ignition and fire due to the overheating of the auxiliary coil due to the long-term overcurrent.

본 고안은 상기한 문제점을 감안하여 별도의 보조히트코일과 주히트코일간의 접점에 어스부와 연결된 바이메탈을 장치하고 과전류보호소자의 하우징내부 상측부에 역원추형의 스프링을 저용응납(예컨데 100-120˚c에서 용응)으로 지지하여 된 것으로 이를 첨부 도면에 의거 상세히 설명하면 다음과 같다.In view of the above problems, the present invention installs a bimetal connected to the earth portion at the contact point between the separate auxiliary heat coil and the main heat coil, and uses a low-conducting spring of conical spring on the upper part of the housing of the overcurrent protection device. It is supported by ˚c) as described in detail based on the accompanying drawings as follows.

첨부도면 제1도 내지 제2도에 있어서, 인입선(P)측과 부하선(T)측간에 보조히트코일(1)과 주히트코일(2)을 설치하고, 이 보조 및 주히트코일(1)(2)간에 접점(E)를 구성하되, 접점(E)과 어스부(3) 간에는 바이메탈(4)(4a)을 장치하였으며, 인입선(P)측과 어스부(3) 사이에는 과전압보호소자(5)를 설치하였다.In the accompanying drawings, the auxiliary heat coil 1 and the main heat coil 2 are provided between the lead wire P side and the load line T side. The contact point E is formed between the two ends, but the bimetal 4a is provided between the contact point E and the earth portion 3, and the overvoltage protection between the lead wire P and the earth portion 3 is provided. The element 5 was installed.

첨부도면중 제3도는 본 고안의 다른 실시예로서 동일한 구성은 동일한 부호를 부여하였다.3 of the accompanying drawings is another embodiment of the present invention the same configuration is given the same reference numerals.

즉 인입선(P)측과 부하선(T)측간에 보조히트코일(1)과 주히트코일(2)을 설치하고, 보조 및 주히트코일(1)(2)간에 셀렉터접점(E')(E")(E"')을 가진 바이메탈(6)을 장치하였다.That is, the auxiliary heat coil 1 and the main heat coil 2 are provided between the lead line P side and the load line T side, and the selector contact point E 'between the auxiliary and main heat coils 1 and 2 ( A bimetal 6 with E ") (E" ') was installed.

첨부도면중 제4도는 본 고안에 부설된 안전장치로서, 7은 과전류보호소자를 구성하는 하우징인데, 이하우징(7)은 상부단자캡(8), 하부단자캡(9), 비전도체인 커어버(10)로 구성되어 있으며, 하부단자캡(9)의저면에는 어스부(3)와 연결되는 타바이메탈(4a)의 하부단자가 배치되어 있다.Figure 4 of the accompanying drawings is a safety device attached to the present invention, 7 is a housing constituting the overcurrent protection element, the housing 7 is the upper terminal cap (8), lower terminal cap (9), non-conductive chain The lower terminal of the tabby metal 4a connected to the earth portion 3 is disposed on the bottom surface of the lower terminal cap 9.

11은 상부단자캡(8)의 내부상측부에 설치된 역원추형 스프링인데, 이 스프링(11)은 저용융납(100℃-120℃에서 용응)(12)에 의하여 압축 고정되어있다.11 is an inverted conical spring installed in the upper portion of the upper terminal cap 8, which spring 11 is compressed and fixed by low melting solder (welding at 100 ° C-120 ° C) 12.

이와같이 구성된 본 고안의 작용 및 그 효과를 설명하면 다음과 같다.Referring to the operation and effects of the present invention configured as described above are as follows.

즉 제1도 내지 제2도에 있어서, 낙뢰 또는 고압선 등의 접촉에 의하여 인입선(P)측에 과전압, 과전류가 인입되면, 과전압은 과전압보호소자(5)를 통해 어스부(3)로 어스되고, 과전류는 보조 및 주히트코일(1)(2)를 경유하는 순간 상기 보조 및 주히트코일(1)(2)이 가열되어 바이메탈(4)(4a)을 작동시키므로 제1도의 점선 및 제2도의(b)와 같이 바이메탈(4)(4a)의 접점이 접촉되게 되므로 인입선측으로 인입된 과전류가 보조히트코일(1),접점(E), 한바이메탈(4), 타바이메탈(4a)를 통해 어스부(3)로 흐르도록 되므로 주히트코일(2), 부하선(T)측을 완전 차단토록 되어있다. 이때 인입된 과전류가 신속히 정상치로 회복되지 못하고 어떤 원인에 의해 장시간 지속될 때 주히트코일(2)에 과전류가 인입되지 않아 가열되지 않는다 하더라도 과전류가 보조히트코일(1)를 통하는 동안 가열되어 있으므로 일단 접점이 접촉된 바이메탈(4)(4a)는 그 상태를 지속하여 상기 인입된 과전류를 계속 어스부(3)로 흐르도록 되어 있다.That is, in FIGS. 1 to 2, when an overvoltage and an overcurrent enter the side of the lead wire P due to a contact such as a lightning strike or a high voltage line, the overvoltage is earthed to the earth portion 3 through the overvoltage protection element 5. , The overcurrent causes the auxiliary and main heat coils 1 and 2 to be heated to operate the bimetals 4 and 4a at the instant they pass through the auxiliary and main heat coils 1 and 2, respectively. As shown in (b), the contacts of the bimetals (4) and (4a) are brought into contact with each other, so that the overcurrent drawn into the lead-in side is transferred through the auxiliary heat coil (1), the contact point (E), the bye metal (4), and the tabby metal (4a). Since it flows to the earth part 3, the main heat coil 2 and the load line T side are cut off completely. At this time, if the incoming overcurrent does not recover to the normal value rapidly and persists for a long time due to some cause, even though the overheat is not drawn because the overheat is not drawn into the main heat coil 2, the overcurrent is heated during the auxiliary heat coil 1, so The contacted bimetals 4 and 4a are kept in the state so that the drawn overcurrent continues to flow to the earth portion 3.

또한 제3도에 있어서, 최초 바이메탈(6)의 셀렉터접점(E')(E")(E"') 접점중 접점(Ｅ')(Ｅ")가 접촉된 상태이므로 과전류가 인입되면 보조 및 주히트코일(1)(2)이 동시에 가열되어 바이메탈(6)를 작동시켜 접점(Ｅ')(Ｅ")에서 접점(Ｅ')(Ｅ")으르 바뀌므로 주히트코일(2)과 부하선(T)측을 완전히 차단하여 통신기기를 보호하고, 상기 바이메탈(6)에 의한 접점(Ｅ')(Ｅ")은 보조히트코일(1)의 가열에 의해 그 상태를 지속시켜줄 수 있도록 된 것인데 이는 부하선(T)측을 완전 차단하여줌에 따라 통신기기는 확실히 보호할 수 있는 효과가 제1도 내지 제2도의 경우보다 뛰어나지만 제작공정상 약간 복잡한 단점이 없지 않았다.Also, in FIG. 3, the selector contact E '(E ") (E"') of the first bimetal 6 is in contact with the contact E '(E "). The main heat coil (1) (2) is simultaneously heated to operate the bimetal (6) to change the contact (E ') (E ") from the contact (E') (E"), so that the main heat coil (2) and the load The communication device is protected by completely blocking the line T side, and the contacts E 'and E " by the bimetal 6 can maintain their state by heating the auxiliary heat coil 1. This is because it completely blocks the load line (T) side, the communication device can be surely more effective than the case of Figures 1 to 2, but did not have a slightly complicated disadvantage in the manufacturing process.

이상 양자와 같이 인입선(P)측에 인입된 과전류를 부하선(T)측에 전혀 보내지 않고 어스부(3)로 흐르도록 하여, 과전류의 인입이 지속적일 경우 그 바이메탈(4)(4a)(6)의 접촉된 접점(Ｅ')(Ｅ"')을 보조히트코일(1)에 의하여 바이메탈(4)(4a)(6)이 그 상태를 유지토록 되어 있다.As described above, the overcurrent drawn on the lead line P side is not sent to the load line T side at all, and flows to the earth section 3, so that the bimetals 4, 4a (when the overcurrent is continuously drawn) Bimetals 4, 4a, 6 are maintained by the auxiliary heat coil 1 in contact with the contact E '6'.

그러나 과전류가 장시간 지속적으로 유입될 경우 바이메탈(4)(4a)(6)의 접점(Ｅ')(Ｅ'")의 장시간 지속적으로 접촉됨에 따라 보조히트코일(1)이 과열될 우려가 있으며 이 과열에 의하여 하우징(7)이 발화 및 화재의 위험성을 배제할 수가 없음에 따라 제4도와 같이 상부단자캡(3) 내부 상측부에 저용융납(12)에 의하여 지지 고정된 역원추형의 스프링(11)을 설치하여 상기 보조히트코일(1)이 100-120℃ 정도 이상으로 상승하면 저용융납(12)이 녹아 떨어짐과 동시에 역원추형 스프링(11)이 탄발되어 바이메탈(4)(4a)(6)에 직접 닿아 전기적 회로를 구성하는데 이때 바이메탈(4)(4a)(6)은 그 점점(Ｅ')(Ｅ"')이 접촉된 상태이므로 제4도의(b)와 같이 역원추형 스프링(11)의 하단중앙공간에 접점(E')(E"')이 접촉된 바이메탈(4)(4a)(6)의 상단이 끼워지게 됨에 따라 인입된 과전류가 상부 단자캡(8)→역원추형스프링(11)→바이메탈(4)(4a),(6)→하단단자캡(9) 저면의 하부단자를 통해 어스부(3)로 흐르게 한 것이다.However, if the overcurrent continuously flows for a long time, the auxiliary heat coil 1 may overheat due to continuous contact with the contacts E '(E' ") of the bimetals 4, 4a and 6 for a long time. As the housing 7 is not able to exclude the risk of ignition and fire due to overheating, the reverse conical spring supported by the low melting solder 12 in the upper upper portion of the upper terminal cap 3 as shown in FIG. 11) and the auxiliary heat coil 1 rises above 100-120 ° C., the low melting solder 12 melts and the reverse conical spring 11 is blown and the bimetal (4) (4a) ( 6) to form an electric circuit directly. In this case, the bimetals 4, 4a, and 6 are in contact with each other (E ') (E "'), so as shown in FIG. 11, the upper end of the bimetals 4, 4a and 6, in which the contact points E 'and E " Will flow into the terminal cap (8) → reverse conical spring (11) → bimetal (4) (4a), (6) → the bottom of the terminal cap 9 earth section 3 through the lower terminal of the lower surface.

결국 인입된 상기 과전류는 보조히트코일(1)을 통하지 않고 직접 어스부(3)로 접속됨에 따라 보조히트코일(1)의 과열을 방지하여 과전류 보호소자의 하우징(7)은 물론 주위 보안장치의 발화 및 화재의 위험을 방지할 수 있다.Eventually, the introduced overcurrent is directly connected to the earth portion 3 without passing through the auxiliary heat coil 1, thereby preventing overheating of the auxiliary heat coil 1, so that the housing 7 of the overcurrent protection device as well as the surrounding security device The risk of ignition and fire can be prevented.

그러나 이 경우는 당연히 다른 과전류 보호소자와 교체하여야 함은 당연한 것이다.In this case, of course, it is natural to replace it with other overcurrent protection devices.

상술한 바와 같이 본 고안은 인입선(P)축과 부하선(T)측 사이에 보조 및 주히트코일(1)(2)을 연결하되, 상기 보조 및 주히트코일(1)(2) 사이에 접점(Ｅ)를 설치라고, 이 접점(Ｅ)과 어스부(3)간에 점점(Ｅ')(Ｅ"')을 가진 바이메탈(4)(4a)을 장치하거나, 상기 보조 및 주히트코일(1)(2) 사이에 셀렉터접점(Ｅ')(Ｅ")(Ｅ"')을 가진 바이메탈(6)을 장치하고 한접점(Ｅ"')은 어스부(3)와 연결하여 과전류 보호소자를 구성하는 하우징(1)의 상부단자캡(7) 내부상측부에는 저용융납(12)으로 역원추형의 스프링(11)을 지지 고정시켜서 된 것으로 확실히 과전류를 통신기기측과 차단시킬 수 있음과 동시에 지속적인 과전류 인입시에도 보안장치의 발화 및 화재의위험으로부터 방지시킬 수 있도록 된 안정성이 크고 실용성이 높은 고안이다.As described above, the present invention connects the auxiliary and main heat coils (1) and (2) between the lead wire (P) axis and the load line (T) side, and between the auxiliary and main heat coils (1) and (2). In order to install the contact E, a bimetal 4, 4a having an E '(E "') between the contact E and the earth portion 3 is provided, or the auxiliary and main heat coil ( 1) (2) is provided with a bimetal 6 having a selector contact (E ') (E ") (E"'), and the contact point (E "') is connected to the earth section (3) to provide an overcurrent protection device. The upper terminal cap (7) inside the upper portion of the housing 1 constituting the low-melting solder 12 to the reverse conical spring 11 is fixed to the over-current and the communication device side and can be surely At the same time, it is designed with high stability and high practicality to prevent from the risk of ignition and fire of the security device even during continuous overcurrent drawing.

Claims (1)

인입선(P)측과 부하선(T)측 사이에 보조 및 주히트코일(1)(2)을 연결하되, 그 사이에 접점(Ｅ)은 설치하고 이 접점(Ｅ)과 어스부(3)간에 접점(Ｅ')(Ｅ"')을 가진 바이메탈(4)(4a)을 장치하거나 상기 보조 및 주히트코일 사이에 셀렉터점점(Ｅ')(Ｅ")(Ｅ"')을 가진 바이메탈(6)을 설치하고 접점(Ｅ"')은 어스부(3)와 연결한 것에 있어서, 상기 바이메탈(4)(4a)(6) 상측에 위치한 상부단자캡(8) 내부 상측부에 역원추형스프링(11)을 저용융납(12)으로 지지 고정시키되, 상기 보조히트코일(1)의 지속적인 과전류가 흐를 때 열로 인해 저용융납(12)이 녹으면 역원추형스프링(11)의 탄력에 의해 바이메탈(4)(4a)(6)이 접속되게 구성한 통신용 보안기의 전류 자동단속장치.The auxiliary and main heat coils (1) (2) are connected between the lead line (P) side and the load line (T) side with the contact point (E) installed therebetween, and the contact point (E) and the earth portion (3). A bimetal (4) 4a having a contact point E '(E "') between them or a bimetal with selector point E '(E") (E "') between said auxiliary and main heat coils 6) and the contact point E '' is connected to the earth portion 3, the reverse conical spring inside the upper terminal cap 8 located above the bimetals 4, 4a and 6. (11) is fixed and supported by the low melt 12, but when the low melt 12 is melted due to heat when the continuous overcurrent of the auxiliary heat coil (1) flows by the elasticity of the reverse conical spring (11) (4) A current interruption device for a communication security device configured to be connected to (4a) and (6).
KR2019870014957U 1987-01-07 1987-09-01 Automatic switching device for communications system KR910003163Y1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR2019870014957U KR910003163Y1 (en) 1987-09-01 1987-09-01 Automatic switching device for communications system
IN1142/DEL/87A IN170586B (en) 1987-01-07 1987-12-29
CA000556062A CA1333724C (en) 1987-01-07 1988-01-07 Safety device for communication equipment
US07/141,703 US4851957A (en) 1987-01-07 1988-01-07 Safety device for telecommunication equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019870014957U KR910003163Y1 (en) 1987-09-01 1987-09-01 Automatic switching device for communications system

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Publication Number Publication Date
KR890007773U KR890007773U (en) 1989-05-17
KR910003163Y1 true KR910003163Y1 (en) 1991-05-13

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KR2019870014957U KR910003163Y1 (en) 1987-01-07 1987-09-01 Automatic switching device for communications system

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