WO2013097590A1 - 一种交流电路的全模过压保护模组 - Google Patents

一种交流电路的全模过压保护模组 Download PDF

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Publication number
WO2013097590A1
WO2013097590A1 PCT/CN2012/086245 CN2012086245W WO2013097590A1 WO 2013097590 A1 WO2013097590 A1 WO 2013097590A1 CN 2012086245 W CN2012086245 W CN 2012086245W WO 2013097590 A1 WO2013097590 A1 WO 2013097590A1
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Prior art keywords
varistor
gdt
overvoltage protection
mov1
tco3
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PCT/CN2012/086245
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English (en)
French (fr)
Inventor
孙玉培
陈石
许由生
徐忠厚
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厦门赛尔特电子有限公司
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Publication of WO2013097590A1 publication Critical patent/WO2013097590A1/zh

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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
    • H02H3/20—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 responsive to excess voltage
    • 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
    • H02H9/042—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage comprising means to limit the absorbed power or indicate damaged over-voltage protection device
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
    • H02H5/046—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature using a thermocouple

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  • the invention relates to a full-mode overvoltage protection module for an alternating current circuit, in particular to a full-mode overvoltage protection module with an alloy-type thermal fuse, a varistor and a gas discharge tube with failure protection.
  • varistor With its superior nonlinear volt-ampere characteristics, varistor is widely used for over-voltage protection and surge absorption of power supplies, devices and components. When different types of transient over-voltage occur frequently, varistor will be frequent. The action suppresses the overvoltage amplitude and absorbs and releases the surge energy. As a result, the performance of the varistor is degraded or even failed; in this case, when the transient overvoltage flows through the varistor, the varistor will quickly Partial breakdown leads to the phenomenon of fire burning.
  • the invention patent ZL2005100446615 (2009.11.18.) has announced a solution for overheating the varistor with an alloy type thermal fuse to ensure that the temperature fuse can be sensed quickly and promptly. The varistor generates heat and thereby protects the deteriorated or failed varistor.
  • full mode protection of LN, LG, and NG is required, thereby generating a 2+1 full mode protection mode, that is, using two varistor (MOV) series gas discharge tubes.
  • GDT varistor
  • MOV varistor
  • two varistor (MOV) form a differential mode protection mode between LN.
  • the traditional 2+1 full-mode protection method is formed by independent devices through peripheral connections, but it takes up too much space and area, and is not suitable for the miniaturization of modern electronic and electrical equipment.
  • the present invention proposes a full-mode overvoltage protection module with an MOV and GDT fail-safe protection for an AC circuit.
  • a full-mode overvoltage protection module for an AC circuit comprising a first alloy type thermal fuse (TCO1), a second alloy type thermal fuse (TCO2), a third alloy type thermal fuse (TCO3), and a first varistor ( MOV1), a second varistor (MOV2), and a two-pole gas discharge tube (GDT), characterized in that one end of the first alloy type thermal fuse (TCO1) is connected to the L end of the power source, The other end of the TCO1 is connected to one end of the first varistor (MOV1); the other end of the MOV1 is connected to one end of the diode discharge tube (GDT), and the other end of the GDT is One end of the three-alloy type thermal fuse (TCO3) is connected, and the other end of the TCO3 is connected to the G end of the power supply, and the above connection constitutes a first loop, and the first loop forms a L-to-G end between the power supply Common mode overvoltage protection; one end of the second alloy type thermal fuse (T
  • the TMOV1 composed of the first alloy type temperature fuse and the first varistor has the same or similar shape as the TMOV2 composed of the second alloy type temperature fuse and the second varistor, and is stacked in parallel, in the TMOV1.
  • the TCO1 in TCO1 and TMOV2 are at the same level.
  • the GDT component combined with the GDT and the TCO3 is placed between the TMOV1 and the TMOV2, and is co-located with the TCO2 in the TCO1 and TMOV2 in the TMOV1, or another layer is provided.
  • the mounting mode is horizontal and suitable for PCB connection or pluggable connection.
  • the mounting mode is vertical, and all the lead wires of the module are led out to the same side to form a vertical structure, which is suitable for PCB board connection or with the installation of the indicating circuit to form a rail-mounted plug structure.
  • the first circuit, the second circuit, and the third circuit form a full mode protection for the single-phase AC circuit, and at the same time, the varistor and the gas discharge tube in all circuits have over-temperature tripping to prevent deterioration and failure.
  • Device
  • connection point of the TCO1 and the MOV1 may be taken out as one end S1 of the status indication line; the connection point of the TCO2 and the MOV2 may be taken out as the other end S2 of the status indication line; S1 and S2 may be connected to the peripheral device Status indication circuit.
  • the invention integrates the first alloy type temperature fuse, the second alloy type temperature fuse, the third alloy type temperature fuse, the first varistor, the second varistor and the one kind of gas discharge tube into a modular form Structure
  • the MOV in the TMOV between the live line (LG) and the neutral line (NG) in the module can effectively absorb the surge overvoltage, and the alloy type built into the TMOV close to the MOV surface
  • the temperature fuse TCO can effectively avoid the fire hazard caused by MOV degradation/failure or temporary overvoltage; in addition, the gas discharge tube will also generate heat when abnormality occurs during use, and the temperature fuse is also connected in series, and the temperature of the gas discharge tube is over When the temperature is high, the temperature fuse can cut off the circuit; the full-mode protection module with MOV and GDT failure protection of the integrated structure of the invention effectively prevents the hidden danger of the MOV and the GDT from being ignited due to deterioration or failure, and the invention adopts the PCB board welding method. It is possible to reduce the area occupied by
  • FIG. 1 is a circuit diagram of the present invention
  • Figure 2 is a partial cross-sectional view of the final assembly of the present invention
  • Figure 3 is an internal structure diagram of the present invention
  • Figure 4 is a disassembled view of the component 311 of the present invention
  • Figure 5 is a disassembled view of the component 303 of the present invention
  • FIGS. 1 through 5 Specific technical implementations of the present invention are further described below in conjunction with FIGS. 1 through 5:
  • one end of the first temperature fuse (TCO1) is connected to the L end of the power source,
  • the other end of the TCO1 is connected to one end of the first varistor (MOV1) to form a "varistor with an alloy type thermal fuse" (TMOV) as described in the patent ZL2005100446615 (2009.11.18.).
  • TMOV alloy type thermal fuse
  • the structure TMOV1 the heat generated when the MOV1 is degraded or failed, can cut off the TCO1 in time;
  • the other end of the MOV1 is connected to one end of the diode discharge tube (GDT), and the other end of the GDT is
  • One end of the three-temperature fuse (TCO3) is connected, and the heat generated when the GDT short-circuit fails will cut off the TCO3 in time.
  • the other end of the TCO3 is connected to the G end of the power supply, and the above connection constitutes the first loop.
  • the first loop forms a common mode overvoltage protection between the L terminal and the G terminal of the power source; one end of the second temperature fuse (TCO2) is connected to the N terminal of the power source, and the other end of the TCO2 is connected to the second pressure sensitive
  • One end of the resistor (MOV2) is connected to form a TMOV2 structure, and the heat generated when the MOV2 is deteriorated or failed can cut off the TCO2 in time; the other end of the MOV2 is connected to the connection point of the MOV1 and the GDT.
  • the other end of the GDT is connected to one end of the TCO3, and the other end of the TCO3 is connected to the G end of the power supply, and the above connection constitutes a second loop.
  • the second loop forms a common mode overvoltage protection between the N terminal and the G terminal of the power supply.
  • the series connection of TCO1, MOV1, MOV2, and TCO2 forms a third loop that forms differential mode overvoltage protection between the L terminal and the N terminal of the power supply.
  • TMOV1 and TMOV2 are the same or similar shapes and are stacked in parallel.
  • TCO1 in TMOV1 and TCO2 in TMOV2 are on the same level; GDT components combined with GDT and TCO3 are placed between TMOV1 and TMOV2. It can be co-located with TCO1 in TMOV1 and TCO2 in TMOV2, or another level.
  • connection point between the TCO1 and the MOV1 may be taken out as one end S1 of the status indication line
  • connection point between the TCO2 and the MOV2 may be taken out as the other end S2 of the status indication line, and S1 and S2 are externally connected, and may be connected outside.
  • the status indication circuit is configured to indicate whether the TCO1 and the TCO2 are both in an on state; the connection point S3 of the TCO3 and the GDT is externally connected to the connectable peripheral indication circuit for indicating whether the TCO3 is in an on state.
  • the full-mode overvoltage protection module is disposed on the outer casing 203 and the cover 202, and a module mechanism 201 is disposed between the outer casing 203 and the cover 202.
  • the outer casing 203 and the cover plate 202 may be made of an injection-molded engineering plastic, a ceramic material or the like, and are integrally sealed with an epoxy resin, a silicone resin, an inorganic filler or the like.
  • the module mechanism 201 includes a component TMOV1 component 301, a TMOV2 component 302, and a GDT component 303; wherein the TMOV1 component 301 includes a first varistor 403-1 and a first temperature fuse 304, The TMOV2 component 302 includes a second varistor 403-2 and a second temperature fuse 305, The GDT component 303 includes a third temperature fuse 306 and a diode discharge tube 307; the TMOV1 component 301 is placed above the TMOV2 component 302, and the GDT component 303 is placed in the TMOV1 component 301 and the TMOV2 component 302 in the middle.
  • FIG. 4 shows the parts and composition of the TMOV1 assembly 301 and the TMOV2 assembly 302.
  • conductive silver layers 402A, 402B, 416C, and 416D are respectively coated to form electrical characteristics of the MOV;
  • the electrode 401 is formed by using tin solder. 405, 406, and 410 are respectively soldered to the conductive silver layers 402A, 402B, 416C, and 416D, and the electrode 401 is soldered with the lead 420 of the first thermal fuse 403-1 and the externally extending lead 418 (ie, S1 in FIG. 1).
  • the lead 420 will bend across the first varistor 403-1 and be on the underside of the electrode 405 of the first varistor 403-1 with the temperature-sensitive alloy wire 415-1 of the thermal fuse 304.
  • the other externally extending lead wire 419, the fluxing aid 408-1, the outer casing 409-1, and the sealing material 414-1 are assembled into a complete first temperature fuse 304; the outer casing 409-1 of the first temperature fuse 304 will be tight A surface of the electrode 405 on the first varistor 403-1; a lead 413 of the thermal fuse 305 and a lead 412 extending outwardly (ie, S2 in FIG. 1) are soldered to the electrode 410, and the lead 413 of the thermal fuse is attached.
  • the electrode 406 After bending, spanning the second varistor 403-2, and at the second varistor 403-2 The upper side of the electrode 406 is assembled with the temperature-sensitive alloy wire 415-2 of the thermal fuse, the other externally extending lead 411, the flux breaker 408-2, the outer casing 409-2, and the sealing material 414-2 into a complete second temperature fuse. 305; the outer casing 409-2 of the second temperature fuse 305 will abut against the surface of the electrode 406 on the second varistor 403-2, wherein the electrode 405 and the electrode 406 are connected together through the electrode 417 And soldering the lead 407 (ie, S3 in FIG. 1) to the electrode 406, the electrode 404 having two raised portions and a hole in the electrode 308 on the member GDT307 of the GDT assembly 303 309 sets together, Form effective electrical connections and mechanical positioning.
  • the lead 407 ie, S3 in FIG. 1
  • the parts and composition of the GDT assembly 303 are shown in FIG.
  • the externally leaded lead 310 is assembled with the temperature sensitive alloy wire 415-3 of the thermal fuse 306, the other externally extending lead 502, the fluxing aid 408-3, the outer casing 409-3, and the sealing material 414-3 to form a complete third temperature.
  • the fuse 306; the lead 502 of the third thermal fuse 306 is soldered to the electrode 501 of the GDT 307 to form a GDT assembly 303.
  • the mounting mode of the integrated structure of the embodiment is horizontal, and is suitable for PCB board connection or pluggable connection; all externally-lead leads of the integrated structure of this embodiment may also be The same side is taken out to form a vertical structure, which is suitable for PCB board connection, and can also be installed with a pointing circuit to form a rail-mounted plug structure.
  • the invention integrates the first, second and third alloy type temperature fuses, the first varistor, the second varistor and a gas discharge tube into a modular structure, the live line-ground line in the module (LG).
  • the MOV in the TMOV between the neutral line and the ground line (NG) can effectively absorb the surge overvoltage and effectively prevent the hidden danger of the MOV and the GDT from being ignited due to deterioration or failure.

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  • Fuses (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Thermistors And Varistors (AREA)

Abstract

一种交流电路的全模过压保护模组，将第一个合金型温度保险丝（TC01）、第二个合金型温度保险丝（TC02）、第三个合金型温度保险丝（TC03）、第一压敏电阻（MOV1）、第二压敏电阻（MOV2）和1种气体放电管（GDT）集合为一体形成模块化结构，模块中的火线-地线（L-G）、零线-地线（N-G）之间的第一压敏电阻（MOV1）和第二压敏电阻（MOV2）能够有效地吸收浪涌过电压，而上述模块化结构中内置的紧靠于第一压敏电阻（MOV1）、第二压敏电阻（MOV2）表面的第一个合金型温度保险丝（TC01）、第二个合金型温度保险丝（TC02）能够有效地避免因压敏电阻劣化/失效或暂时过电压而产生的火灾隐患；另外，气体放电管（GDT）在使用过程中出现异常时也会发热，同样串联有温度保险丝（TC03），在气体放电管（GDT）温度过高时，温度保险丝（TC03）可以切断电路；该一体化结构的带第一压敏电阻（MOV1）、第二压敏电阻（MOV2）、气体放电管（GDT）失效保护的全模保护模组有效地防止第一压敏电阻（MOV1）、第二压敏电阻（MOV2）、气体放电管（GDT）因劣化或失效而着火的隐患。

Description

一种交流电路的全模过压保护模组 技术领域
本发明涉及一种交流电路的全模过压保护模组，特别是设置有合金型温度保险丝、压敏电阻和气体放电管的带失效保护的全模过压保护模组。
背景技术
压敏电阻器以其优越的非线性伏安特性，广泛应用于电源、设备及元器件的过电压保护和浪涌吸收，当不同类型的瞬时过电压频繁出现时，压敏电阻器就会频繁动作以抑制过电压幅值和吸收释放浪涌能量，如此，势必会导致压敏电阻器的性能劣化甚至失效；在此情况下当暂态过电压流过压敏电阻时，压敏电阻会迅速局部击穿导致起火燃烧的现象，为克服这一问题发明专利ZL2005100446615（2009.11.18.）公布了一种用合金型温度保险丝对压敏电阻进行过热保护的方案，确保温度保险丝能及时迅速地感应压敏电阻的发热并由此对劣化或失效的压敏电阻器进行保护。
另一方面在交流回路的电涌保护中，需要L-N、L-G、N-G的全模保护，由此产生了2+1的全模保护模式，即采用两只压敏电阻（MOV）串联气体放电管（GDT）在L-G和N-G之间形成了共模防护方式，此外两只压敏电阻（MOV）在L-N之间形成了差模保护模式。传统的2+1全模保护方式，采用独立器件通过外围的连接形成，但太占用空间和面积，不适合现代电子电气设备的小型化需求。为此，本发明提出一种交流电路的带MOV、GDT失效保护的全模过压保护模组。
发明内容
一种交流电路的全模过压保护模组，包括第一合金型温度保险丝(TCO1)、第二合金型温度保险丝(TCO2)、第三合金型温度保险丝(TCO3)、第一压敏电阻（MOV1）、第二压敏电阻(MOV2)和二极气体放电管（GDT），其特征在于：第一合金型温度保险丝(TCO1)的一端与电源的L端连接, 所述TCO1的另一端与第一压敏电阻(MOV1)的一端连接；所述MOV1的另一端与所述的二极放电管(GDT)的一端连接,所述GDT的另一端与所述第三合金型温度保险丝(TCO3)的一端连接，所述的TCO3的另一端与电源的G端连接,以上连接构成了第一回路，所述第一回路形成了电源的L端对G端之间的共模过压保护;其中第二合金型温度保险丝(TCO2)的一端与电源的N端连接, 所述TCO2的另一端与第二压敏电阻(MOV2)的一端连接；所述MOV2的另一端与所述MOV1和所述GDT的连接点相连,所述GDT的另一端与所述TCO3的一端连接,所述的TCO3的另一端与电源的G端连接,以上连接构成了第二回路，所述第二回路形成了电源的N端对G端之间的共模过压保护;TCO1、MOV1、MOV2、TCO2的串联形成了第三回路，所述第三回路形成了电源的L端对N端之间的差摸过压保护。
所述的由第一合金型温度保险丝、第一压敏电阻构成的TMOV1，与由第二合金型温度保险丝、第二压敏电阻构成的TMOV2为相同或相似形状，并平行叠放，TMOV1中的TCO1、TMOV2中的TCO2处于同一层面。
所述的GDT与TCO3组合成的GDT组件置放于TMOV1与TMOV2之间，与TMOV1中的TCO1、TMOV2中的TCO2共处同一层面，或另设一个层面。
安装模式为卧式，适合于PCB板连接或可插拔连接。
安装模式为立式，所述模组的所有对外引出的引线朝同一侧引出，形成立式结构，适合于PCB板连接，或配合指示电路的安装，制成导轨式安装的插头结构。
因此，由第一回路、第二回路、第三回路形成了对单相交流电路的全模保护，同时，所有回路中的压敏电阻和气体放电管都有防止劣化和失效的过温脱扣装置。
另外所述TCO1与所述MOV1的连接点可以引出作为状态指示线路的一端S1；TCO2与所述MOV2的连接点可以引出作为状态指示线路的另一端S2；S1与S2可以引出连接到外设的状态指示电路。
本发明带来的有益效果是：
本发明将第一个合金型温度保险丝、第二个合金型温度保险丝、第三个合金型温度保险丝、第一压敏电阻、第二压敏电阻和1种气体放电管集合为一体形成模块化结构，模块中的火线-地线（L-G）、零线-地线（N-G）之间的TMOV中的MOV能够有效地吸收浪涌过电压，而TMOV中内置的紧靠于MOV表面的合金型温度保险丝TCO能够有效地避免因MOV劣化/失效或暂时过电压而产生的火灾隐患;另外,气体放电管在使用过程中出现异常时也会发热,同样串联有温度保险丝,在气体放电管温度过高时,温度保险丝可以切断电路;本发明一体化结构的带MOV、GDT失效保护的全模保护模组有效地防止MOV、GDT因劣化或失效而着火的隐患，本发明采用PCB板焊接方式，可以地缩小模块占用PCB板的面积,特别是模块高度有显著的降低。
附图说明
附图1是本发明的电路图
附图2是本发明的总装局部剖视图
附图3是本发明的内部结构图
附图4是本发明的部件311拆解图
附图5是本发明的部件303拆解图
具体实施方式
以下结合图１至图5对本发明的具体技术实施方案进行进一步的说明:
在图1中,第一温度保险丝(TCO1)的一端与电源的L端连接, 所述TCO1的另一端与第一压敏电阻(MOV1)的一端连接,形成了专利ZL2005100446615（2009.11.18.）中所述的“设有合金型温度保险丝的压敏电阻”（简称TMOV）的结构TMOV1，当MOV1劣化或失效时所产生的热量可及时将TCO1切断；所述MOV1的另一端与所述的二极放电管(GDT)的一端连接,所述GDT的另一端与所述第三温度保险丝(TCO3)的一端连接,当GDT短路失效时所产生的热量将TCO3及时切断，所述的TCO3的另一端与电源的G端连接,以上连接构成了第一回路, 所述第一回路形成了电源的L端对G端之间的共模过压保护;第二温度保险丝(TCO2)的一端与电源的N端连接,所述TCO2的另一端与第二压敏电阻(MOV2)的一端连接,形成了TMOV2结构，当MOV2劣化或失效时所产生的热量可及时将TCO2切断；所述MOV2的另一端与所述MOV1和所述GDT的连接点相连接,所述GDT的另一端与所述TCO3的一端连接,所述的TCO3的另一端与电源的G端连接,以上连接构成了第二回路, 所述第二回路形成了电源的N端对G端之间的共模过压保护。而TCO1、MOV1、MOV2、TCO2的串联形成了第三回路，所述第三回路形成了电源的L端对N端之间的差模过压保护。
在外型结构上，TMOV1与TMOV2为相同或相似形状，并呈平行叠放，TMOV1中的TCO1、TMOV2中的TCO2处于同一层面；GDT与TCO3组合成的GDT组件置放于TMOV1与TMOV2之间，可以与TMOV1中的TCO1、TMOV2中的TCO2共处同一层面，或另设一个层面。
另外，所述TCO1与所述MOV1的连接点可以引出作为状态指示线路的一端S1,TCO2与所述MOV2的连接点可以引出作为状态指示线路的另一端S2，S1与S2对外引出，可以连接外设状态指示电路，用于指示TCO1和TCO2是否都处于接通状态；TCO3与GDT的连接点S3对外引出可连接外设指示电路，用于指示TCO3是否处于接通状态。
在图2中,所述全模过压保护模组设置有在外壳203和盖板202，在所述外壳203和盖板202的中间设置有模组机构201, 所述外壳203和盖板202可以采用注塑成型的工程塑料、也可以是陶瓷材料制成或类似材料，并采用环氧树脂、硅树脂、无机填料等材料进行整体密封。
在图3中,所述模组机构201中包括组件TMOV1组件301、TMOV2组件302、GDT组件303;其中所述TMOV1组件301包括第一压敏电阻403-1和第一温度保险丝304,所述TMOV2组件302包括第二压敏电阻403-2和第二温度保险丝305, 所述GDT组件303包括第三温度保险丝306和二极放电管307;所述TMOV1组件301置于所述TMOV2组件302的上方,所述GDT组件303置于所述TMOV1组件301和所述TMOV2组件302中间。
图4显示了所述TMOV1组件301和所述TMOV2组件302的零件和组成结构。在MOV的陶瓷裸片403-1和403-2的四个表面上上，分别涂覆了导电银层402A、402B、416C、416D，进而形成了MOV的电气特性；采用锡焊料将电极401、405、406、410分别与导电银层402A、402B、416C、416D焊接上，而电极401上焊接着第一温度保险丝403-1的引线420以及对外延伸的引线418（即为图1中的S1），引线420将弯曲后跨越了所述第一压敏电阻403-1，并在所述第一压敏电阻403-1的电极405的下侧与温度保险丝304的感温合金丝415-1、另一对外延伸的引线419、助熔断剂408-1、外壳409-1、封口材料414-1组装成完整的第一温度保险丝304；所述第一温度保险丝304的外壳409-1将紧靠所述第一压敏电阻403-1上的电极405的表面；电极410上焊接着温度保险丝305的引线413以及对外延伸的引线412（即为图1中的S2），温度保险丝的引线413将弯曲后跨越了所述第二压敏电阻403-2，并在所述第二压敏电阻403-2的电极406的上侧与温度保险丝的感温合金丝415-2、另一对外延伸的引线411、助熔断剂408-2、外壳409-2、封口材料414-2组装成完整的第二温度保险丝305；所述第二温度保险丝305的外壳409-2将紧靠所述第二压敏电阻403-2上的电极406的表面，其中所述电极405和所述电极406通过电极417连接成一体,并在所述电极406上焊接对外引出的引线407（即为图1中S3）,所述电极404上有两个凸起部分与所述GDT组件303的部件GDT307上的电极308上的孔309套在一起, 形成有效的电气连接及机械定位。
在图5显示了所述GDT组件303的零件和组成结构, 对外引出的引线310与温度保险丝306的感温合金丝415-3、另一对外延伸的引线502、助熔断剂408-3、外壳409-3、封口材料414-3组装成完整的第三温度保险丝306；所述第三温度保险丝306的引线502与GDT307的电极501焊接后,组成GDT组件303。
如图2～图5所示，本实施例的一体化结构的安装模式为卧式，适合于PCB板连接或可插拔连接；本实施例的一体化结构的所有对外引出的引线也可以朝同一侧引出，形成立式结构，适合于PCB板连接，也可以配合指示电路的安装，制成导轨式安装的插头结构。
以上所述，仅为本发明较佳实施例而已，故不能依此限定本发明实施的范围，即依本发明专利范围及说明书内容所作的等效变化与修饰，皆应仍属本发明涵盖的范围内。
工业实用性
本发明将第一、第二、第三个合金型温度保险丝、第一压敏电阻、第二压敏电阻和一气体放电管集合为一体形成模块化结构，模块中的火线-地线（L-G）、零线-地线（N-G）之间的TMOV中的MOV能够有效地吸收浪涌过电压，有效地防止MOV、GDT因劣化或失效而着火的隐患。

Claims (5)

  1. 一种交流电路的全模过压保护模组，包括第一合金型温度保险丝(TCO1)、第二合金型温度保险丝(TCO2)、第三合金型温度保险丝(TCO3)、第一压敏电阻（MOV1）、第二压敏电阻(MOV2)和二极气体放电管（GDT），其特征在于：第一合金型温度保险丝(TCO1)的一端与电源的L端连接,所述TCO1的另一端与第一压敏电阻(MOV1)的一端连接；所述MOV1的另一端与所述的二极放电管(GDT)的一端连接,所述GDT的另一端与所述第三合金型温度保险丝(TCO3)的一端连接，所述的TCO3的另一端与电源的G端连接,以上连接构成了第一回路，所述第一回路形成了电源的L端对G端之间的共模过压保护;其中第二合金型温度保险丝(TCO2)的一端与电源的N端连接, 所述TCO2的另一端与第二压敏电阻(MOV2)的一端连接；所述MOV2的另一端与所述MOV1和所述GDT的连接点相连,所述GDT的另一端与所述TCO3的一端连接,所述的TCO3的另一端与电源的G端连接,以上连接构成了第二回路， 所述第二回路形成了电源的N端对G端之间的共模过压保护;TCO1、MOV1、MOV2、TCO2的串联形成了第三回路，所述第三回路形成了电源的L端对N端之间的差摸过压保护。
  2. 根据权利要求1所述的一种交流电路的全模过压保护模组，其特征在于所述的由第一合金型温度保险丝、第一压敏电阻构成的TMOV1，与由第二合金型温度保险丝、第二压敏电阻构成的TMOV2为相同或相似形状，并平行叠放，TMOV1中的TCO1、TMOV2中的TCO2处于同一层面。
  3. 根据权利要求2所述的一种交流电路的全模过压保护模组，其特征在于所述的GDT与TCO3组合成的GDT组件置放于TMOV1与TMOV2之间，与TMOV1中的TCO1、TMOV2中的TCO2共处同一层面，或另设一层面。
  4. 根据权利要求3所述的一种交流电路的全模过压保护模组，其特征在于安装模式为卧式，适合于PCB板连接或可插拔连接。
  5. 根据权利要求3所述的一种交流电路的全模过压保护模组，其特征在于安装模式为立式，所述模组的所有对外引出的引线朝同一侧引出，形成立式结构，适合于PCB板连接，或配合指示电路的安装，制成导轨式安装的插头结构。
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