WO2013178168A1 - Appareil protecteur pour tube à décharge gazeuse et dispositif de communication - Google Patents

Appareil protecteur pour tube à décharge gazeuse et dispositif de communication Download PDF

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Publication number
WO2013178168A1
WO2013178168A1 PCT/CN2013/080057 CN2013080057W WO2013178168A1 WO 2013178168 A1 WO2013178168 A1 WO 2013178168A1 CN 2013080057 W CN2013080057 W CN 2013080057W WO 2013178168 A1 WO2013178168 A1 WO 2013178168A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas discharge
discharge tube
protection circuit
parallel
ptc
Prior art date
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.)
Ceased
Application number
PCT/CN2013/080057
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English (en)
Chinese (zh)
Inventor
刘团辉
王三红
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
Original Assignee
ZTE Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Publication of WO2013178168A1 publication Critical patent/WO2013178168A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/24—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for spark-gap arresters

Definitions

  • the present invention relates to the field of electronic communications, and in particular to a protection device and a communication device for a gas discharge tube.
  • BACKGROUND OF THE INVENTION Currently, communication systems such as wireless base station equipment and fixed network terminals are considered to have lightning protection design when they are introduced from the outdoors. From the current general processing methods, all are used through gas discharge. The tube is used to bleed the lightning energy to protect other circuits of the device from lightning damage.
  • U1 is a protected device and U2 is a gas discharge tube.
  • the gas discharge tube itself has the characteristics of rapid discharge, high pressure resistance and strong overcurrent capability, and can complete the function of discharging lightning energy.
  • the present invention provides a gas discharge tube protection device and a communication device to solve the above problems at least in the related art, due to technical problems such as device burn-out due to the presence of a freewheeling effect of the gas discharge tube.
  • a protection device for a gas discharge tube for protecting a first gas discharge tube in a communication device, comprising: being configured to generate a freewheeling effect in the first gas discharge tube
  • the protection circuit that reduces the current flowing through the first gas discharge tube is coupled to the first gas discharge tube.
  • the protection circuit includes: a first positive temperature coefficient thermistor (PTC), one end of which is connected to the first gas discharge tube, and the other end is connected to the power ground.
  • the protection circuit further includes one of the following: a varistor connected in parallel with the first PTC; and a Transient Voltage Suppressor (TVS) connected in parallel with the first PTC.
  • the protection circuit includes: a first varistor having one end connected to the first gas discharge tube and the other end connected to the power ground.
  • the protection circuit includes: at least one second gas discharge tube connected in parallel with the first gas discharge tube.
  • the protection circuit includes: a second varistor connected in parallel with the first gas discharge tube and the second gas discharge tube.
  • the protection circuit includes: a second PTC having one end connected in series with a parallel circuit composed of a first gas discharge tube and a second gas discharge tube, and the other end connected to a power ground.
  • the protection circuit includes: a third varistor connected in parallel with the second PTC.
  • the protection circuit includes: a third PTC connected in parallel with the first gas discharge tube and the second gas discharge tube.
  • the protection circuit includes: a fourth varistor having one end connected in series with a parallel circuit composed of a first gas discharge tube and a second gas discharge tube, and the other end connected to the power ground.
  • a communication device including the apparatus described above.
  • FIG. 1 is a schematic diagram of a lightning protection design of a gas discharge tube according to the related art
  • FIG. 2 is a schematic structural view of a gas discharge tube protection device according to Embodiment 1 of the present invention
  • FIG. 3 is a schematic diagram of a gas discharge tube according to Embodiment 1 of the present invention
  • FIG. 4 is a schematic circuit diagram of a body discharge tube protection device according to Embodiment 2 of the present invention
  • FIG. 7 is a schematic structural view of a gas discharge tube protection device according to Embodiment 4 of the present invention;
  • FIG. 8 is a schematic view of Embodiment 4 according to the present invention;
  • FIG. 9 is a schematic structural view of a gas discharge tube protection device according to Embodiment 5 of the present invention;
  • FIG. 10 is a structure of a gas discharge tube protection device according to Embodiment 6 of the present invention;
  • FIG. 11 is a schematic view showing another structure of a gas discharge tube protection device according to Embodiment 6 of the present invention
  • FIG. 12 is a schematic structural view of a gas discharge tube protection device according to Embodiment 7 of the present invention.
  • a protection device for a gas discharge tube for protecting a first gas discharge tube in a communication device includes: configured to reduce flow through when a first gas discharge tube generates a freewheeling effect
  • the first gas discharge tube current protection circuit 10 is coupled to the first gas discharge tube U2.
  • U1 in Fig. 2 denotes a protected device, which may be a wireless base station device or a fixed network terminal.
  • PTC positive temperature coefficient thermistor
  • the scheme adopted at this time is as follows:
  • the first PTC U4 has one end and The first gas discharge tube U2 is connected, and the other end is connected to the power source ground.
  • Embodiment 2 This embodiment is similar to Embodiment 1 except that the protection of the thermistor is enhanced.
  • the PTC thermistor can be protected.
  • it can be realized by: by the varistor U3 connected in parallel with the first PTC U4. .
  • the varistor can also be replaced by a transient suppression diode TVS, that is, can be realized by: implementing the embodiment 3 by the TVS U3' connected in parallel with the first PTC U4.
  • This embodiment provides another protection device, which differs from Embodiments 1 and 2 in that the first PTCs of Embodiments 1 and 2 are replaced by a varistor.
  • the protection circuit in the device includes: a first varistor VR0 having one end connected to the first gas discharge tube U2 and the other end connected to the power ground.
  • Embodiment 4 In this embodiment, another protection device is further provided, which differs from Embodiments 1 to 3 in that the protection circuit in the device is realized by paralleling a gas discharge tube at both ends of the protected gas discharge tube. .
  • the protection circuit in the device includes: at least one second gas discharge tube U2' connected in parallel with the first gas discharge tube U2.
  • the protection circuit may further include a second varistor VR1 connected in parallel with the first gas discharge tube U2 and the second gas discharge tube U2'.
  • Embodiment 5 This embodiment is similar to Embodiment 4 except that the second varistor VR1 of Embodiment 4 is replaced by a thermistor. Specifically, as shown in FIG.
  • the protection circuit in this embodiment includes: a second PTC R0 connected in parallel with the first gas discharge tube U2 and the second gas discharge tube U2'.
  • Embodiment 6 is as shown in FIG. 10, this embodiment The protection circuit in the middle includes: a third PTC R1 having one end connected in series with a parallel circuit composed of the first gas discharge tube U2 and the second gas discharge tube U2', and the other end connected to the power ground.
  • the protection circuit includes: a third varistor VR2 connected in parallel with the third PTC R1.
  • Embodiment 7 This embodiment replaces the third PTC R1 in Embodiment 10 with a varistor, as follows: As shown in FIG.
  • the protection circuit in this embodiment includes: Sensitive resistor VR3, one end The parallel circuit composed of the first gas discharge tube U2 and the second gas discharge tube U2' is connected in series, and the other end is connected to the power supply ground.
  • Sensitive resistor VR3 One end The parallel circuit composed of the first gas discharge tube U2 and the second gas discharge tube U2' is connected in series, and the other end is connected to the power supply ground.
  • Embodiment 8 The principle of the embodiment is as follows: Since the gas discharge has a freewheeling effect, it remains conductive after the lightning strike energy, and if the protected signal is always energized, the gas discharge tube can be operated for a long time, and the heat is generated and caused by the device. Burned, can no longer play a protective role.
  • This embodiment utilizes the use of a PTC thermistor (positive temperature coefficient thermistor) and a TVS tube (ie, a transient suppression diode) in combination with a gas discharge tube to ensure the lightning strike protection of the gas discharge tube and also to protect the gas discharge.
  • the tube itself is damaged by the freewheeling effect.
  • the utility model designs and the auxiliary circuit design of the gas discharge tube thereby avoiding the risk of freewheeling of the gas discharge tube, increasing the service life of the gas discharge tube, and improving the lightning strike resistance and reliability of the protected device.
  • the purpose is to protect the gas discharge tube from damage due to the freewheeling effect.
  • U1 is a protected device
  • U2 is a gas discharge tube
  • one end is connected to a protected signal
  • one end is connected in series with U4 to the ground
  • U4 is a PTC thermistor
  • U3 is connected in parallel with U4
  • U4 is a TVS tube gas discharge tube:
  • the gas discharge tube is a gap type lightning protection element, which has been widely used in lightning protection of communication systems.
  • the discharge tube is often used in the first stage or the first two stages of the multi-stage protection circuit to bleed and discharge the lightning transient overcurrent and limit the overvoltage.
  • PTC thermistor Positive temperature coefficient thermistor: It is a typical temperature-sensitive semiconductor resistor. When the temperature exceeds a certain temperature (Curie temperature), its resistance value increases stepwise with increasing temperature. .
  • TVS tube It is a high-performance protection device in the form of a diode.
  • the two poles of the TVS tube When the two poles of the TVS tube are subjected to reverse transient high-energy shock, it can change the high impedance between the two poles at a speed of the order of 10-12 seconds.
  • Low impedance absorbing surge power of up to several kilowatts, clamping the voltage between the two poles to a predetermined value, effectively protecting the precision components in the electronic circuit from various surge pulses, using the principle of this embodiment, using
  • the PTC thermistor and the gas discharge tube are connected in series to the ground, and the TVS tube and the PTC thermistor are connected in parallel.
  • the gap between the two poles will discharge and break down, and the original insulation state will be converted into a conductive state.
  • the voltage between the two poles of the discharge tube is maintained. Put the residual voltage level determined by the arc path, and the on-resistance of the PTC thermistor is small at this time.
  • the TVS tube acts primarily as a clamp voltage, protecting the PTC thermistor from damage due to overvoltage. Lightning energy flows to the earth through gas discharge and PTC thermistor. At this time, the shortest discharge path of lightning energy is completed, and other circuit parts are protected from lightning damage.

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Abstract

Le modèle d'utilité concerne un appareil de protection pour un tube à décharge gazeuse et un dispositif de communication, pour protéger un premier tube à décharge gazeuse dans le dispositif de communication. Ledit appareil comprend un circuit de protection utilisé pour réduire, lorsque le premier tube à décharge gazeuse génère l'effet de roue libre, le courant passant à travers le premier tube à décharge gazeuse, ce circuit étant relié au premier tube à décharge gazeuse. Ces solutions techniques fournies par le modèle d'utilité permettent de résoudre le problème technique de grillage du dispositif à cause de l'effet de roue libre généré par le tube à décharge gazeuse dans les technologies connexes, de sorte que le risque de roue libre du tube à décharge gazeuse peut être évité, la durée de vie du tube à décharge gazeuse peut être augmentée et la capacité anti-décharge électrique et la fiabilité du dispositif de communication protégé sont améliorées.
PCT/CN2013/080057 2012-08-23 2013-07-24 Appareil protecteur pour tube à décharge gazeuse et dispositif de communication Ceased WO2013178168A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201220421532.9 2012-08-23
CN201220421532.9U CN202759220U (zh) 2012-08-23 2012-08-23 气体放电管的保护装置及通信设备

Publications (1)

Publication Number Publication Date
WO2013178168A1 true WO2013178168A1 (fr) 2013-12-05

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PCT/CN2013/080057 Ceased WO2013178168A1 (fr) 2012-08-23 2013-07-24 Appareil protecteur pour tube à décharge gazeuse et dispositif de communication

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CN (1) CN202759220U (fr)
WO (1) WO2013178168A1 (fr)

Cited By (1)

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EP3876374A1 (fr) * 2020-03-03 2021-09-08 ABB Power Grids Switzerland AG Protection contre les surtensions pour robinet de test de traversée haute tension

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CN202759220U (zh) * 2012-08-23 2013-02-27 中兴通讯股份有限公司 气体放电管的保护装置及通信设备
CN104735853A (zh) * 2013-12-23 2015-06-24 广东德豪润达电气股份有限公司 Led驱动电路及使用该驱动电路的led日光灯
CN107645158A (zh) * 2017-09-30 2018-01-30 上海欣丰电子有限公司 一种小体积浪涌保护器
CN115133516A (zh) * 2021-03-25 2022-09-30 维谛公司 电源系统的信号防护电路、方法和装置

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CN202076965U (zh) * 2011-06-09 2011-12-14 湖南浦洋节能科技股份有限公司 一种新型防雷太阳能供电系统
US8179655B2 (en) * 2008-03-28 2012-05-15 Pulse Electronics, Inc. Surge protection apparatus and methods
CN202268694U (zh) * 2011-10-24 2012-06-06 波达通信设备（广州）有限公司 一种应用于数字微波收发信机的雷击浪涌保护电路
CN202759220U (zh) * 2012-08-23 2013-02-27 中兴通讯股份有限公司 气体放电管的保护装置及通信设备

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
US8179655B2 (en) * 2008-03-28 2012-05-15 Pulse Electronics, Inc. Surge protection apparatus and methods
CN202076965U (zh) * 2011-06-09 2011-12-14 湖南浦洋节能科技股份有限公司 一种新型防雷太阳能供电系统
CN202268694U (zh) * 2011-10-24 2012-06-06 波达通信设备（广州）有限公司 一种应用于数字微波收发信机的雷击浪涌保护电路
CN202759220U (zh) * 2012-08-23 2013-02-27 中兴通讯股份有限公司 气体放电管的保护装置及通信设备

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3876374A1 (fr) * 2020-03-03 2021-09-08 ABB Power Grids Switzerland AG Protection contre les surtensions pour robinet de test de traversée haute tension
WO2021175705A1 (fr) 2020-03-03 2021-09-10 Abb Power Grids Switzerland Ag Protection contre les surtensions pour prise d'essai de traversée haute tension
CN115191067A (zh) * 2020-03-03 2022-10-14 日立能源瑞士股份公司 Hv套管测试抽头的过压保护
JP2023516414A (ja) * 2020-03-03 2023-04-19 ヒタチ・エナジー・スウィツァーランド・アクチェンゲゼルシャフト Ｈｖブッシングの試験タップのための過電圧保護
JP7361939B2 (ja) 2020-03-03 2023-10-16 ヒタチ・エナジー・スウィツァーランド・アクチェンゲゼルシャフト Ｈｖブッシングの試験タップのための過電圧保護
US12021375B2 (en) 2020-03-03 2024-06-25 Hitachi Energy Ltd Overvoltage protection for HV bushing test tap
CN115191067B (zh) * 2020-03-03 2025-06-24 日立能源有限公司 Hv套管测试抽头的过压保护

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