CN206135408U - With trigger composite lightning protector and lightning protection components - Google Patents
With trigger composite lightning protector and lightning protection components Download PDFInfo
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- CN206135408U CN206135408U CN201621161932.5U CN201621161932U CN206135408U CN 206135408 U CN206135408 U CN 206135408U CN 201621161932 U CN201621161932 U CN 201621161932U CN 206135408 U CN206135408 U CN 206135408U
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- 230000001012 protector Effects 0.000 title claims abstract description 23
- 239000002131 composite material Substances 0.000 title claims abstract description 17
- 238000004804 winding Methods 0.000 claims abstract description 10
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical group [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 12
- 239000011787 zinc oxide Substances 0.000 claims description 6
- 238000013021 overheating Methods 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- SBYXRAKIOMOBFF-UHFFFAOYSA-N copper tungsten Chemical compound [Cu].[W] SBYXRAKIOMOBFF-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052754 neon Inorganic materials 0.000 description 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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Abstract
本实用新型提供了一种带触发式复合型防雷保护器和防雷保护组件。防雷保护组件包括密闭火花间隙、温度开关、低压放电模块、自感升压器;所述温度开关、低压放电模块以及自感升压器的低压绕组依次串联后接地形成低压放电路径,所述温度开关还与输入电源端相连;所述密闭火花间隙跨接于所述输入电源端与地之间,形成与所述低压放电路径相并联的高压放电路径;其中,所述密闭火花间隙在输入头和输出头之间还设有触发头,所述自感升压器的高压绕组的一端与所述触发头相连,另一端接地。带触发式复合型防雷保护器包括所述防雷保护组件和安装座;所述防雷保护组件可插拔地安装于所述安装座中,三相电源线与零线都分别通过一所述防雷保护组件接地。
The utility model provides a composite lightning protector with a trigger and a lightning protection component. The lightning protection component includes a closed spark gap, a temperature switch, a low-voltage discharge module, and a self-inductance booster; the temperature switch, the low-voltage discharge module, and the low-voltage winding of the self-inductance booster are connected in series and then grounded to form a low-voltage discharge path. The temperature switch is also connected to the input power supply terminal; the sealed spark gap is connected between the input power supply terminal and the ground to form a high-voltage discharge path in parallel with the low-voltage discharge path; wherein, the sealed spark gap is connected between the input power supply terminal and the ground A trigger head is also provided between the head and the output head, and one end of the high-voltage winding of the self-inductance booster is connected to the trigger head, and the other end is grounded. The composite lightning protection device with trigger type includes the lightning protection component and the mounting seat; the lightning protection component is pluggably installed in the mounting The above lightning protection components are grounded.
Description
技术领域technical field
本实用新型涉及电子电气设备的保护装置技术领域,具体地,涉及一种带触发式复合型防雷保护器和防雷保护组件。The utility model relates to the technical field of protection devices for electronic and electrical equipment, in particular to a composite lightning protector with a trigger and a lightning protection component.
背景技术Background technique
低压配电系统的过电压防护时,一般采用多级保护。采用多级防护的主要目的就是为了即能满足大通流容量的要求,又能满足低于设备耐压水平的残压要求。GB50057-94(2000年版)《建筑物防雷设计规范》中,第6.4.11条规定“在一般情况下,当在线路上多处安装SPD且无准确数据时,电压开关型SPD与限压型SPD之间的线路长度不宜小于10m,限压型SPD之间的线路长度不宜小于5m。”。信息产业部行业标准YD/T5098-2005《通信局(站)防雷与接地工程设计规范》中第9.2.2条规定“在使用分级保护时,各级浪涌保护器之间应保持必要的退耦距离或增设退耦器件,以确保各级浪涌保护器协调工作。氧化锌SPD与氧化锌SPD之间退耦距离(电缆长度)应不小于5m。”。而在实际安装过程中,往往因为安装空间问题,无法满足两级间的安装距离要求。因此提高防雷性能的基础上同时减小了防雷保护器的空间占用成为亟待解决的问题。Multi-level protection is generally used for overvoltage protection of low-voltage power distribution systems. The main purpose of adopting multi-level protection is to meet the requirements of large flow capacity and residual pressure lower than the withstand voltage level of the equipment. In GB50057-94 (2000 Edition) "Code for Lightning Protection Design of Buildings", Article 6.4.11 stipulates that "under normal circumstances, when SPDs are installed in multiple places on the line and there is no accurate data, the voltage switch type SPD and the voltage limiting type The line length between SPDs should not be less than 10m, and the line length between voltage-limiting SPDs should not be less than 5m.". Article 9.2.2 of the industry standard YD/T5098-2005 "Communication Bureau (Station) Lightning Protection and Grounding Engineering Design Code" of the Ministry of Information Industry stipulates that "when using hierarchical protection, the surge protectors at all levels should maintain the necessary Decoupling distance or adding decoupling devices to ensure the coordination of surge protectors at all levels. The decoupling distance (cable length) between zinc oxide SPD and zinc oxide SPD should not be less than 5m.". In the actual installation process, it is often impossible to meet the installation distance requirements between the two stages due to the installation space problem. Therefore, on the basis of improving the lightning protection performance, reducing the space occupation of the lightning protector becomes an urgent problem to be solved.
实用新型内容Utility model content
针对现有技术中的缺陷,本实用新型的目的是提供一种带触发式复合型防雷保护器和防雷保护组件。Aiming at the defects in the prior art, the purpose of the utility model is to provide a composite lightning protector with a trigger and a lightning protection component.
根据本实用新型提供的一种防雷保护组件,包括密闭火花间隙、温度开关、低压放电模块、自感升压器;A lightning protection component provided according to the utility model includes a sealed spark gap, a temperature switch, a low-voltage discharge module, and a self-inductance booster;
所述温度开关、低压放电模块以及自感升压器的低压绕组依次串联后接地形成低压放电路径,所述温度开关还与输入电源端相连;The temperature switch, the low-voltage discharge module, and the low-voltage winding of the self-inductance booster are sequentially connected in series and grounded to form a low-voltage discharge path, and the temperature switch is also connected to the input power terminal;
所述密闭火花间隙跨接于所述输入电源端与地之间,形成与所述低压放电路径相并联的高压放电路径;The airtight spark gap is connected between the input power terminal and the ground to form a high-voltage discharge path connected in parallel with the low-voltage discharge path;
其中,所述密闭火花间隙在输入头和输出头之间还设有触发头,所述自感升压器的高压绕组的一端与所述触发头相连,另一端接地。Wherein, the sealed spark gap is further provided with a trigger head between the input head and the output head, and one end of the high-voltage winding of the self-inductance booster is connected to the trigger head, and the other end is grounded.
作为一种优化方案,还包括工作指示灯;工作指示灯的一端连接在所述温度开关与所述低压放电模块之间,另一端接地。As an optimized solution, a working indicator light is also included; one end of the working indicator light is connected between the temperature switch and the low-voltage discharge module, and the other end is grounded.
作为一种优化方案,所述温度开关为过热保险丝。As an optimized solution, the temperature switch is an overheating fuse.
作为一种优化方案,所述低压放电模块包括串联的压敏电阻和放电管,所述压敏电阻连接所述温度开关,所述放电管连接所述自感升压器。As an optimized solution, the low-voltage discharge module includes a piezoresistor and a discharge tube connected in series, the piezoresistor is connected to the temperature switch, and the discharge tube is connected to the self-inductance booster.
作为一种优化方案,所述放电管为陶瓷放电管。As an optimized solution, the discharge tube is a ceramic discharge tube.
作为一种优化方案,所述压敏电阻为氧化锌压敏电阻。As an optimized solution, the varistor is a zinc oxide varistor.
作为一种优化方案,所述温度开关设于所述压敏电阻表面,用于在所述压敏电阻过热状态时断开电路。As an optimized solution, the temperature switch is arranged on the surface of the piezoresistor for disconnecting the circuit when the piezoresistor is overheated.
基于同一实用新型构思,本实用新型还提供了一种带触发式复合型防雷保护器,包括所述的防雷保护组件和安装座;所述防雷保护组件可插拔地安装于所述安装座中,三相电源线与零线都分别通过一所述防雷保护组件接地。Based on the same concept of the utility model, the utility model also provides a trigger-type composite lightning protector, including the lightning protection component and the mounting seat; the lightning protection component is pluggably installed on the In the mounting seat, the three-phase power line and the zero line are respectively grounded through one of the lightning protection components.
作为一种优化方案,还包括汇流排;所述防雷保护组件都通过所述汇流排接地。As an optimized solution, a bus bar is also included; the lightning protection components are all grounded through the bus bar.
与现有技术相比,本实用新型具有如下的有益效果:Compared with the prior art, the utility model has the following beneficial effects:
本实用新型在残压低于密闭火花间隙阈值的情况下,利用放电管、压敏电阻泄流的同时也能开启密闭火花间隙进行泄流,从而提高对小电流的防雷能力;在残压高于密闭火花间隙阈值的情况下,密闭火花间隙对大电流正常开启泄流。带触发式复合型防雷保护器具有I级电压开关型SPD和II级限压型SPD的防雷能力,同时两级集合在同一安装座内无需考虑I级与II级安全距离。比传统防雷器分离式体积更小。When the residual voltage is lower than the threshold value of the closed spark gap, the utility model can also open the closed spark gap to discharge the current while using the discharge tube and the varistor to discharge, thereby improving the lightning protection ability for small currents; when the residual voltage is high In the case of the closed spark gap threshold, the closed spark gap is normally opened for large current leakage. The composite lightning protector with trigger has the lightning protection capability of Class I voltage switch SPD and Class II voltage limiting SPD. At the same time, the two classes are assembled in the same mounting base without considering the safety distance of Class I and Class II. It is smaller than the separate type of traditional lightning arrester.
附图说明Description of drawings
通过阅读参照以下附图对非限制性实施例所作的详细描述,本实用新型的其它特征、目的和优点将会变得更明显:Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:
图1为一种防雷保护组件;Fig. 1 is a kind of lightning protection assembly;
图2为一种带触发式复合型防雷保护器;Figure 2 is a composite lightning protector with trigger;
图3为一种传统型分级式防雷器。Figure 3 is a traditional graded lightning arrester.
具体实施方式detailed description
下面结合具体实施例对本实用新型进行详细说明。以下实施例将有助于本领域的技术人员进一步理解本实用新型,但不以任何形式限制本实用新型。应当指出的是,对本领域的普通技术人员来说,在不脱离本实用新型构思的前提下,还可以做出若干变形和改进。这些都属于本实用新型的保护范围。The utility model is described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the utility model, but do not limit the utility model in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present utility model. These all belong to the protection domain of the present utility model.
本实用新型公开了如图1所示的一种防雷保护组件,包括密闭火花间隙、温度开关、低压放电模块、自感升压器;The utility model discloses a lightning protection component as shown in Fig. 1, comprising a sealed spark gap, a temperature switch, a low-voltage discharge module, and a self-inductance booster;
所述温度开关、低压放电模块以及自感升压器的低压绕组依次串联后接地形成低压放电路径,所述温度开关还与输入电源端相连;The temperature switch, the low-voltage discharge module, and the low-voltage winding of the self-inductance booster are sequentially connected in series and grounded to form a low-voltage discharge path, and the temperature switch is also connected to the input power terminal;
所述密闭火花间隙跨接于所述输入电源端与地之间,形成与所述低压放电路径相并联的高压放电路径;The airtight spark gap is connected between the input power terminal and the ground to form a high-voltage discharge path connected in parallel with the low-voltage discharge path;
其中,所述密闭火花间隙在输入头和输出头之间还设有触发头,所述自感升压器的高压绕组的一端与所述触发头相连,另一端接地。本实用新型通过自感升压器与密闭火花间隙的触发头相连,实现将低电压升高后触发高压放电路径的开启。Wherein, the sealed spark gap is further provided with a trigger head between the input head and the output head, and one end of the high-voltage winding of the self-inductance booster is connected to the trigger head, and the other end is grounded. The utility model is connected with the trigger head of the airtight spark gap through the self-inductance booster, so as to realize the opening of the high-voltage discharge path triggered after the low voltage is raised.
本专利中所述高压放电路径是相对于低压放电路径来讲的,所述高压放电路径正常开启时输入电源上电压大于密闭火花间隙的阈值电压。The high-voltage discharge path mentioned in this patent is relative to the low-voltage discharge path. When the high-voltage discharge path is normally opened, the voltage on the input power supply is greater than the threshold voltage of the closed spark gap.
如图1所示,密闭火花间隙具有三个钨铜电极A、C、D,三个电极的位置决定了AD之间击穿电压必然高于AC、CD之间,当任意AC或CD之间击穿跳火时,在密闭腔内电子导致AD之间呈导通状态。As shown in Figure 1, the airtight spark gap has three tungsten copper electrodes A, C, and D. The positions of the three electrodes determine that the breakdown voltage between AD must be higher than that between AC and CD. When any AC or CD When the breakdown sparks, the electrons in the closed cavity lead to a conduction state between AD.
小电流通过低压放电路径进行放电的同时,自感升压器将流经的电压做1.5-2倍放大后加在密闭火花间隙的触发头上,即加在了图1所示的CD之间。若放大后的电压使得CD之间击穿跳火,则密闭火花间隙导通。因此自感升压器在本方案中起到通过感应电压触发密闭火花间隙触发的作用。When the small current is discharged through the low-voltage discharge path, the self-inductance booster amplifies the flowing voltage by 1.5-2 times and then adds it to the trigger head of the closed spark gap, that is, it is added between the CDs shown in Figure 1 . If the amplified voltage causes breakdown and flashover between CDs, the closed spark gap will be turned on. Therefore, the self-inductance booster plays the role of triggering the closed spark gap through the induced voltage in this scheme.
自感升压器利用雷击电流由小到大的突变时间与初次级匝数不同感应电压改变的原理,由BD之间的电流突变在自感升压器的高压绕组上感应产生高压,使得密闭火花间隙的CD间电压相对于此时自感升压器的低压绕组上的电压提升约1.5-2倍,引发密闭火花间隙的导通。The self-inductance booster uses the principle of the sudden change time of the lightning current from small to large and the induced voltage change of the primary and secondary turns. The sudden change of current between BDs induces high voltage on the high-voltage winding of the self-inductance booster, making the airtight The CD-to-CD voltage of the spark gap is about 1.5-2 times higher than the voltage on the low-voltage winding of the self-inductance booster at this time, causing the conduction of the closed spark gap.
防雷保护组件还包括工作指示灯。工作指示灯的一端连接在所述温度开关与所述低压放电模块之间,另一端接地。工作指示灯可以是氖灯。The lightning protection package also includes a working indicator light. One end of the working indicator light is connected between the temperature switch and the low-voltage discharge module, and the other end is grounded. The working indicator light can be a neon lamp.
所述低压放电模块包括串联的压敏电阻和放电管,所述压敏电阻连接所述温度开关,所述放电管连接所述自感升压器。The low-voltage discharge module includes a piezoresistor and a discharge tube connected in series, the piezoresistor is connected to the temperature switch, and the discharge tube is connected to the self-inductance booster.
所述温度开关为过热保险丝。所述温度开关设于所述压敏电阻表面,用于在所述压敏电阻过热状态时断开电路。所述过热保险丝贴紧压敏电阻,当压敏电阻温度过热时,所述过热保险丝被熔断,同时工作指示灯熄灭。The temperature switch is an overheating fuse. The temperature switch is arranged on the surface of the piezoresistor and is used to disconnect the circuit when the piezoresistor is overheated. The overheating fuse is attached to the piezoresistor, and when the piezoresistor is overheated, the overheating fuse is blown and the working indicator light goes out at the same time.
所述放电管为陶瓷放电管。陶瓷放电管在两端电压提升到一定值时呈导通状态。The discharge tube is a ceramic discharge tube. The ceramic discharge tube is in a conduction state when the voltage at both ends increases to a certain value.
所述压敏电阻为氧化锌压敏电阻。氧化锌压敏电阻在两端电压提升到一定值时呈低阻状态。The varistor is a zinc oxide varistor. Zinc oxide varistors are in a low-resistance state when the voltage across them rises to a certain value.
本实用新型的原理是在残压低于密闭火花间隙阈值的情况下,利用放电管、压敏电阻泄流的同时也能开启密闭火花间隙进行泄流,从而提高对小电流的防雷能力;在残压高于密闭火花间隙阈值的情况下,密闭火花间隙对大电流正常开启泄流。The principle of the utility model is that when the residual voltage is lower than the threshold value of the closed spark gap, the discharge tube and the piezoresistor can be used to discharge the current, and the closed spark gap can also be opened to discharge the current, thereby improving the lightning protection ability for small currents; When the residual voltage is higher than the threshold value of the closed spark gap, the closed spark gap is normally opened to discharge the large current.
密闭火花间隙(S-Gap)A点到D点启动电流至少需要3-5KA的雷电电流才能使用AD之间短路状泄放电流。当雷击发生开始较低电流时,不足启动密闭火花间隙泄放电流到地。这部分过电流足以损坏设备,因此前期过电流经过温度开关流入B点后击穿压敏电阻和放电管让自感升压器的高压输出端经金属构件连接密闭火花间隙触发头,从而使用较小的电流都能驱使密闭火花间隙泄放,同时具有I级电压开关型SPD和II级限压型SPD的防雷能力。The starting current from point A to point D in the closed spark gap (S-Gap) needs at least 3-5KA lightning current to use the short-circuit discharge current between AD. When a lightning strike occurs and the current is low, it is insufficient to start the closed spark gap to discharge the current to the ground. This part of the overcurrent is enough to damage the equipment. Therefore, the overcurrent in the early stage flows into point B through the temperature switch and breaks down the piezoresistor and the discharge tube so that the high voltage output end of the self-inductance booster is connected to the closed spark gap trigger head through a metal component, thus using more A small current can drive the closed spark gap to discharge, and at the same time it has the lightning protection capability of Class I voltage switch SPD and Class II voltage limiting SPD.
基于同一实用新型构思,本实用新型还提供了如图2所示的一种带触发式复合型防雷保护器,包括所述的防雷保护组件和安装座;所述防雷保护组件可插拔地安装于所述安装座中,三相电源线与零线都分别通过一所述防雷保护组件接地。Based on the same utility model concept, the utility model also provides a trigger type composite lightning protector as shown in Figure 2, including the lightning protection component and the mounting seat; the lightning protection component can be inserted The ground is installed in the mounting base, and the three-phase power line and neutral line are respectively grounded through one of the lightning protection components.
带触发式复合型防雷保护器还包括汇流排;所述防雷保护组件都通过所述汇流排接地。The composite lightning protector with trigger also includes a bus bar; the lightning protection components are all grounded through the bus bar.
带触发式复合型防雷保护器由低压放电电路、高压放电电路和两者之间的触发连接电路组成,充分利用了不同元器件的优点,发挥其作用。构成如图3中低压电源系统Ⅰ级和Ⅱ级电涌防护而特别设计的。产品体积小,电涌泄放能力大,电压保护水平低,响应速度快。取消了传统Ⅰ级和Ⅱ级电涌保护器之间退耦器的安装和级间连接导线长度的限制,尤其适合在Ⅰ级和Ⅱ级电涌保护器两级间无法满足10m导线安装距离的情况下使用,节省安装空间,简化安装技术,优化导线连接。The trigger-type composite lightning protector is composed of a low-voltage discharge circuit, a high-voltage discharge circuit and a trigger connection circuit between the two, making full use of the advantages of different components to play their role. It is specially designed for low-voltage power supply system I and II surge protection as shown in Figure 3. The product is small in size, large in surge discharge capacity, low in voltage protection level, and fast in response. The installation of the decoupler between the traditional Class I and Class II surge protectors and the limitation on the length of the inter-stage connecting wires are canceled, especially suitable for the installation distance of 10m wires between the two stages of the Class I and Class II surge protectors. Use in case, save installation space, simplify installation technology, optimize wire connection.
带触发式复合型防雷保护器是雷电流避雷器和浪涌保护器的完美组合体。只占用6个或8个的标准模块宽度空间,并可配合红线产品系列的浪涌保护器一起使用而不需要附加退藕器件,也可直接保护设备。带触发式复合型防雷保护器具有双接线端的设计简化了接线的工作、无需在负载电流附加模块组,在输出端增设的汇流排提高了其他轨道安装器件组合使用的可能性。带触发式复合型防雷保护器带有工作指示灯以及模块可插拔,更换方便。带触发式复合型防雷保护器内部采用压敏电阻(电压限压型)、间隙放电式(电压开关型)、触发电路集合在一起,具有断后续电流的限定能力,即使有预定短路电流发生时,前段保险丝不会断开。The composite lightning protector with trigger is a perfect combination of lightning current arrester and surge protector. It only occupies 6 or 8 standard module width spaces, and can be used together with the surge protector of the Red Line product series without additional decoupling devices, and can also directly protect the equipment. The dual-terminal design of the trigger-type composite lightning protector simplifies the wiring work and does not require an additional module group for the load current. The bus bar added at the output end improves the possibility of combining other rail-mounted devices. The trigger-type composite lightning protector has a working indicator light and the modules are pluggable and easy to replace. The composite lightning protector with trigger type adopts varistor (voltage limiting type), gap discharge type (voltage switch type) and trigger circuit inside, and has the ability to limit the subsequent current, even if a predetermined short-circuit current occurs , the front fuse will not be disconnected.
以上对本实用新型的具体实施例进行了描述。需要理解的是,本实用新型并不局限于上述特定实施方式,本领域技术人员可以在权利要求的范围内做出各种变形或修改,这并不影响本实用新型的实质内容。The specific embodiments of the present utility model have been described above. It should be understood that the utility model is not limited to the above-mentioned specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the utility model.
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