KR100341877B1 - Protector for main distribution frame - Google Patents
Protector for main distribution frame Download PDFInfo
- Publication number
- KR100341877B1 KR100341877B1 KR1019990018403A KR19990018403A KR100341877B1 KR 100341877 B1 KR100341877 B1 KR 100341877B1 KR 1019990018403 A KR1019990018403 A KR 1019990018403A KR 19990018403 A KR19990018403 A KR 19990018403A KR 100341877 B1 KR100341877 B1 KR 100341877B1
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- KR
- South Korea
- Prior art keywords
- subscriber
- connection terminal
- protector
- exchanger
- ptc
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
- H02H9/026—Current limitation using PTC resistors, i.e. resistors with a large positive temperature coefficient
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/05—Details with means for increasing reliability, e.g. redundancy arrangements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/04—Arrangements for preventing response to transient abnormal conditions, e.g. to lightning or to short duration over voltage or oscillations; Damping the influence of DC component by short circuits in AC networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
본 발명은 가입자 선로로부터 유입되는 과전압,과전류로부터 교환기를 보호할 수 있도록 한 주배선반용 보호기에 관한 것이다.The present invention relates to a main circuit board protector to protect the exchanger from overvoltage and overcurrent flowing from the subscriber line.
본 발명은 가입자선로로부터 유입되는 과전류,과전압으로부터 교환기를 보호하는 주배선반용 보호기 베이스의 내부에 가입자선로가 접속되는 가입자접속단자와; 교환기선로가 접속되는 교환기접속단자와; 상기 가입자접속단자로부터 유입되는 전류,전압을 제한하는 전류제한소자와; 상기 가입자접속단자와 접촉하고 전류제한소자를 지지하는 PTC접촉스프링와; 방열판을 구성하여서 된 것을 특징으로 한다.The present invention provides a subscriber connection terminal having a subscriber line connected inside a protector base for a main wiring board that protects the exchanger from overcurrent and overvoltage flowing from the subscriber line; An exchange connecting terminal to which the exchange line is connected; A current limiting element for limiting current and voltage flowing from the subscriber connection terminal; A PTC contact spring in contact with said subscriber connection terminal and supporting a current limiting element; Characterized in that the heat sink is configured.
Description
본 발명은 주배선반용 보호기에 관한 것으로, 특히 가입자 선로로부터 유입되는 과전압,과전류로부터 교환기를 보호할 수 있도록 한 주배선반용 보호기에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a main circuit board protector, and more particularly, to a main circuit board protector capable of protecting an exchanger from overvoltage and overcurrent flowing from a subscriber line.
일반적으로 전화교환기는 다수의 전신이나 전화선을 수용하고 그들 상호간의 교환접속을 하는 장치이다.In general, telephone exchanges are devices that accept multiple telegraphs or telephone lines and make switched connections between them.
이와같은 전화교환기에는 주배선반이 장착되어 다수의 전신이나 전화가입자선로를 교환기와 접속해 주게 되는데, 이때 주배선반에는 가입자선로 로부터 유입되는 과전압, 과전류로부터 교환기를 보호하기 위하여 보호기를 장착하게 된다.The telephone switchboard is equipped with a main switchboard to connect a plurality of telegraph or telephone subscriber lines with the switchboard. At this time, the main switchboard is equipped with a protector to protect the exchanger from overvoltage and overcurrent flowing from the subscriber line.
그리고 상기 보호기에는 가입자선로 로부터 유입되는 과전압, 과전류를 제한하는 과전압방지소자(ARRESTER)와 과전류제한소자(PTC;Positive Temperature Coefficient )를 장착하게 되는데, 이 과전류제한소자(PTC)는 비교적 유도저항이 큰 방열코일로 구성하여 이 유도저항으로 유입되는 가입자선로 로부터 유입되는 과전류의 흐름을 제한함으로써 교환기를 보호해 주도록 되어 있다.The protector is equipped with an overvoltage protection element (ARRESTER) and an overcurrent limiting element (PTC) to limit the overvoltage and overcurrent flowing from the subscriber line, and the overcurrent limiting element (PTC) has a relatively inductive resistance. It consists of a large heat dissipation coil to protect the exchanger by limiting the flow of overcurrent flowing from the subscriber line into this inductive resistor.
그러나 상기 방열코일은 유도저항이 큰 만큼 유입되는 과전류로부터 전류, 의 흐름을 제한할 수 있으나, 반면에 저항열이 많이 발생하게 되어 이 저항열(발열)로 인하여 상기 방열코일을 지지하는 접촉스프링 및 가입자선스프링과 교환기선 스프링단자의 접촉불량을 야기시키는가 하면, 심지어는 상기 보호기의 베이스 외장을 용융시키게 되므로서 보호기로서의 제기능을 수행하지 못하게 되어 주배선반의 품질과 신뢰성을 크게 저하시키는 문제점을 가지게 되었다.However, the heat dissipation coil may limit the flow of current and current from the overcurrent introduced as the induction resistance is large. On the other hand, a large amount of resistance heat is generated, and the contact spring supporting the heat dissipation coil due to this resistance heat (heating) and It causes the poor contact between the subscriber line spring and the exchanger spring terminal, and even melts the base sheath of the protector so that it cannot perform its function as a protector, which greatly reduces the quality and reliability of the main wiring board. It became.
본 발명의 목적은 가입자선로 로부터 유입되는 과전류, 과전압으로 부터 교환기를 보호하는 것으로 상기 과전류로 인하여 발생되는 발열로 인한 접촉스프링의 불량 및 베이스의 변형이나 용융을 방지되게 하여 보호기의 품질과 신뢰성을 향상시키고자 하는데 있다.An object of the present invention is to protect the exchanger from the overcurrent, overvoltage flowing from the subscriber line to prevent the failure of the contact spring and deformation or melting of the base due to the heat generated by the overcurrent to prevent the quality and reliability of the protector To improve.
상기의 목적을 실현하기 위하여 본 발명은 가입자선로로부터 유입되는 과전류로부터 교환기를 보호하는 보호기 베이스의 내부에 가입자선로가 접속되는 가입자접속단자(외선단자)와; 교환기선로가 접속되는 교환기접속단자(내선단자)와; 낙뢰로부터 교환기로 과전압이 유입되는 것을 방지하는 과전압방지소자(ARRESTER)와; 상기 과전압방지소자(ARRESTER)에서 발생된 열에 의해 녹으며 베이스로 유입된 전류를 교환기가 아닌 지면 또는 땅속으로 유출시키는 안전판과; 상기 가입자접속단자(외선단자)로부터 유입되는 전류를 제한하는 전류제한소자(PTC)와; 상기 가입자접속단자(외선단자)와 접촉 및 전류제한소자(PTC)를 지지하는 PTC접촉스프링과; 방열판으로 구성하여서 된 것을 특징으로 한다.In order to realize the above object, the present invention provides a subscriber connection terminal (external terminal) in which a subscriber line is connected inside a protector base that protects the exchanger from overcurrent flowing from the subscriber line; An exchange connection terminal (extension terminal) to which the exchange line is connected; An overvoltage prevention element (ARRESTER) for preventing overvoltage from flowing into the exchanger from the lightning; A safety plate that is melted by the heat generated by the overvoltage protection device and discharges the current flowing into the base into the ground or the ground instead of the exchanger; A current limiting element (PTC) for limiting current flowing from the subscriber access terminal (external terminal); A PTC contact spring for supporting the subscriber connection terminal (external terminal) and the contact and current limiting device (PTC); It is characterized by consisting of a heat sink.
도 1 은 본 발명 주배선반용 보호기의 정면도1 is a front view of the protector for the main distribution board of the present invention
도 2 는 본 발명 주배선반용 보호기의 스프링단자 사시도Figure 2 is a perspective view of the spring terminal of the protector for the main wiring board of the present invention
〈도면의 주요부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>
10; 베이스10; Base
11; 가입자접속단자(외선단자)11; Subscriber connection terminal (external terminal)
12; 교환기접속단자(내선단자)12; Switch terminal (extension terminal)
13; 과전압방지소자(ARRESTER)13; Overvoltage Protection Device (ARRESTER)
14; 전류제한소자(PTC)14; Current limiting element (PTC)
15; PTC접촉스프링15; PTC Contact Spring
16; 방열판16; Heatsink
17; 안전판17; safety valve
이하 첨부된 도면에 의거 본 발명을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
도 1 은 본 발명 주배전반 보호기의 측면도 이고, 도 2 는 본 발명 주배전반 보호기의 스프링단자의 사시도로서, 가입자선로로부터 유입되는 과전류 및 과전압으로부터 교환기를 보호하는 보호기의 베이스(10)의 전단으로 가입자선로가 삽입되어 접속되는 가입자접속단자(11)와; 교환기선로가 삽입되어 접속되는 교환기접속단자(12)가 상하부에 각각 형성되고, 상기 가입자접속단자(11)와 교환기접속단자1 is a side view of the main switchgear protector of the present invention, Figure 2 is a perspective view of the spring terminal of the main switchgear protector of the present invention, the subscriber to the front end of the base 10 of the protector to protect the exchanger from overcurrent and overvoltage flowing from the subscriber line A subscriber connection terminal 11 into which a line is inserted and connected; Exchange connection terminals 12 are inserted into and connected to the exchange line, respectively, and are formed at the upper and lower portions thereof, and the subscriber connection terminal 11 and the exchange connection terminals are provided.
(12)의 후단에는 낙뢰로부터 과전압을 방지하는 과전압방지소자(13)와; 상기 과전압방지소자(13)에서 발생된 열에 의해 녹으며 베이스로 유입된 전류를 교환기 내부가 아닌 지면 또는 땅속으로 유출시키는 안전판(17)과; 상기 가입자선로 로부터 유입되는 전류를 제한하는 전류제한소자(14)와; 상기 가입자접속단자(11)와 접속됨과 함께 전류제한소자(14)를 지지하는 PTC접촉스프링(15)와; 상기 교환기접속단자(12)의 저면에 베이스(10)을 보호하는 방열판(16)을 구성하게 된다.An overvoltage preventing element 13 for preventing an overvoltage from lightning strikes; A safety plate 17 which melts by heat generated by the overvoltage preventing element 13 and flows current flowing into the base into the ground or ground instead of the inside of the exchanger; A current limiting element (14) for limiting the current flowing from the subscriber line; A PTC contact spring (15) connected to the subscriber connection terminal (11) and supporting the current limiting element (14); A heat sink 16 is formed on the bottom of the exchanger connecting terminal 12 to protect the base 10.
상기 전류제한소자(14)는 유도저항이 없는 PTC 세라믹소자로 구성하고, 상기 PTC접촉스프링(15)은 중앙부를 절결하여 두개의 점 접촉을 이루는 절곡부로 구성한다.The current limiting element 14 is composed of a PTC ceramic element having no inductive resistance, and the PTC contact spring 15 is formed of a bent portion which cuts the center portion to make two point contacts.
상기와 같이 구성된 본 발명은 통상적으로 외선단자라고 불리우는 보호기 베이스에 구비된 가입자접속단자(11)와, 통상적으로 내선단자라고 불리우는 교환기접속단자(12) 각각에 가입자선로 및 교환기선로를 접속하게 되면, 상기 가입자선로 로부터 유입되는 전류는 가입자접속단자(11), PTC접촉스프링(15)과 유도저항이 없는 PTC 세라믹 소재의 전류제한소자(14), 교환기접속단자(12)를 통해서 교환기로 유출되게 된다.The present invention configured as described above is connected to the subscriber line and the exchange line to each of the subscriber connection terminal 11 and the exchanger connection terminal 12, commonly referred to as the extension terminal provided in the protector base, commonly referred to as the outer terminal. The current flowing from the subscriber line flows out to the exchanger through the subscriber connection terminal 11, the PTC contact spring 15, the current limiting element 14 of the PTC ceramic material without the inductive resistance, and the exchange connection terminal 12. Will be.
그리고 상기 교환기로부터 유입되는 전류는 교환기접속단자(12), 전류제한소자(14), PTC접촉스프링(15), 가입자접속단자(11)를 통해서 가입자선로로 유출되는 작용을 하게 되는데, 이때 상기 가입자선로 로부터 유입되는 전류는 PTC 세라믹 소재의 전류제한소자(14)를 통해서 전류가 제한되면서 흐르게 된다.And the current flowing from the exchange acts to flow out to the subscriber line through the exchange connection terminal 12, the current limiting element 14, the PTC contact spring 15, the subscriber connection terminal 11, wherein the subscription The current flowing from the magnetic path flows through the current limiting element 14 made of PTC ceramic material while the current is limited.
이와같이 가입자선로 로부터 유입되는 전류를 제한하면서 주배전반을 보호하는 보호기에 과전류가 유입되면, 상기 과전류는 가입자접속단자(11)와 PTC접촉스프링(15)을 통해서 전류제한소자(14)로 유입되어, 상기 전류제한소자(14)는 과전류에 의하여 발열을 하게 된다.As such, when overcurrent flows into the protector protecting the main switchboard while limiting the current flowing from the subscriber line, the overcurrent flows into the current limiting element 14 through the subscriber connection terminal 11 and the PTC contact spring 15. The current limiting element 14 generates heat by overcurrent.
그리고 상기 전류제한소자(14)가 발열하여 발생하는 열은 상기 PTC접촉스프링(15)에 전달되게 되는데, 이때 상기 PTC접촉스프링(15)은 중앙부가 절결된 두개의 탄성 점접촉부를 구성하고 있어서 상기 전류제한소자(14)와 접촉저항을 줄이게 되므로, 상기 접촉저항으로 인한 발열을 줄일 수 있어 접촉불량 발생율을 줄일 수 있게 된다.In addition, heat generated by the current limiting element 14 being generated is transferred to the PTC contact spring 15. At this time, the PTC contact spring 15 constitutes two elastic point contact parts having a center cut out. Since the contact resistance with the current limiting element 14 is reduced, heat generation due to the contact resistance can be reduced, thereby reducing the contact failure occurrence rate.
또한 상기 전류제한소자(14)로부터 발생된 열은 교환기접속단자(12)에 전달하게 되는데, 이때 교환기접속단자(12)의 저면에는 방열판(16)을 장착하였으므로 상기 교환기 접속단자(12)에 전달된 열을 방열판(16)이 흡수하여 방열하게 되므로 교환기접속단자(12)에 전달된 열이 베이스(10)에 전달되지 않게 되어 베이스(10)가 변형되거이나 용융되는 것을 방지할 수 있게 되어 과전류로부터 보호기를 보호하게 되므로 결국 교환기를 보호할 수 있게 되는 것이다.In addition, heat generated from the current limiting element 14 is transferred to the exchanger connection terminal 12. At this time, since the heat sink 16 is mounted on the bottom of the exchanger connection terminal 12, the heat transfer plate 12 is transferred to the exchanger connection terminal 12. Since the heat sink 16 absorbs the heat, the heat transmitted to the exchanger connecting terminal 12 is not transferred to the base 10, thereby preventing the base 10 from being deformed or melted. Protecting the protector from protection will eventually protect the exchanger.
그리고 낙뢰로 인하여 유입되는 과전류에 대해서는 과전압방지소자(13)가 열을 발생하게 되는데, 상기 과전압방지소자(13)에서 열이 발생하게 되면 과전압방지소자(13)와 교환기접속단자(12) 사이에 결합된 안전판(17)이 녹으므로서 교환기접속단자(12)와 과전압방지소자(13)를 직접 접촉시키게 되고, 상기의 접촉으로 인하여 베이스(10)로 유입된 과전류는 교환기 내부가 아닌 지면이나 땅속으로 유출되어 낙뢰로 인한 베이스(10) 및 교환기의 파손을 방지하게 되는 것이다.The overvoltage preventing element 13 generates heat for an overcurrent flowing due to a lightning strike. When heat is generated from the overvoltage preventing element 13, the overvoltage preventing element 13 and the exchange connection terminal 12 are heated. As the combined safety plate 17 is melted, the exchanger connection terminal 12 and the overvoltage protection element 13 are brought into direct contact with each other, and the overcurrent introduced into the base 10 due to the contact is not grounded in the exchanger. It will flow out to prevent damage to the base 10 and the exchanger due to lightning.
또한 상기 가입자접속단자(11)와 PTC접촉스프링(15)은 단일접점이 아닌 이중접점으로 되어 있으므로 접점의 접촉저항값을 최소화 하였으며, 이와 함께 베이스(10)를 교환기에 접속시키거나 분리시키는 과정으로 인한 탄성변형으로 발생되는 접촉불량도 방지하게 된다.In addition, since the subscriber connection terminal 11 and the PTC contact spring 15 are dual contacts instead of single contacts, the contact resistance value of the contact is minimized. In addition, the base 10 is connected to or separated from the exchanger. The contact failure caused by the elastic deformation is also prevented.
즉, 상기 가입자접속단자(11)와 PTC접촉스프링(15)이 여러번 끼워지거나 이탈하게 되면 가입자접속단자(11)의 접점이 탄성력을 상실하며 PTC접속스프링(15)과 유격이 발생하게 되지만 상기 가입자접속단자(11)와 PTC접촉스프링(15)을 이중접점으로 접촉되게 하였으므로 한 접점이 불량하게 되어도 다른 접점이 충분히 접촉되어 있어 베이스(10)의 기능을 유지시키게 되는 것이다.That is, when the subscriber connection terminal 11 and the PTC contact spring 15 are inserted or separated many times, the contact point of the subscriber connection terminal 11 loses its elastic force and the clearance between the subscriber connection terminal 11 and the PTC connection spring 15 occurs. Since the connection terminal 11 and the PTC contact spring 15 are brought into contact with each other by double contacts, even if one contact is bad, the other contact is sufficiently in contact with each other to maintain the function of the base 10.
이상에서 설명한 바와같이 본 발명은 가입자선로 로부터 유입되는 과전류, 과전압으로 부터 교환기를 보호하는 보호기에 PTC 세라믹 전류제한소자와 두개의 가입자 접속접점, 그리고 안전판 및 방열판을 구성하여 상기 과전류로부터 발열을 효율적으로 방열시켜 줌으로써, 상기 PTC접촉스프링의 불량 및 베이스의 변형이나 용융을 방지하게 되어 보호기의 품질과 신뢰성을 향상시키는 효과가 있는 것이다.As described above, the present invention constitutes a PTC ceramic current limiter, two subscriber connection contacts, a safety plate, and a heat sink to protect the exchanger from overcurrent and overvoltage flowing from the subscriber line, thereby efficiently generating heat from the overcurrent. By dissipating heat, the defect of the PTC contact spring, deformation of the base and melting are prevented, thereby improving the quality and reliability of the protector.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990018403A KR100341877B1 (en) | 1999-05-21 | 1999-05-21 | Protector for main distribution frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990018403A KR100341877B1 (en) | 1999-05-21 | 1999-05-21 | Protector for main distribution frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20000074454A KR20000074454A (en) | 2000-12-15 |
| KR100341877B1 true KR100341877B1 (en) | 2002-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019990018403A Ceased KR100341877B1 (en) | 1999-05-21 | 1999-05-21 | Protector for main distribution frame |
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| Country | Link |
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| KR (1) | KR100341877B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020074265A (en) * | 2001-03-19 | 2002-09-30 | 주식회사 연우이앤티 | Apparatus for prevent over-current/over-voltage of subscriber line |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR980009816U (en) * | 1996-07-30 | 1998-04-30 | 안평래 | Element fixing structure of arrester |
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1999
- 1999-05-21 KR KR1019990018403A patent/KR100341877B1/en not_active Ceased
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR980009816U (en) * | 1996-07-30 | 1998-04-30 | 안평래 | Element fixing structure of arrester |
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| KR20000074454A (en) | 2000-12-15 |
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