CN2566515Y - Surge protector for place-in low voltage distributing system - Google Patents
Surge protector for place-in low voltage distributing system Download PDFInfo
- Publication number
- CN2566515Y CN2566515Y CN 02243633 CN02243633U CN2566515Y CN 2566515 Y CN2566515 Y CN 2566515Y CN 02243633 CN02243633 CN 02243633 CN 02243633 U CN02243633 U CN 02243633U CN 2566515 Y CN2566515 Y CN 2566515Y
- Authority
- CN
- China
- Prior art keywords
- surge protector
- lever
- module
- disconnector
- voltage distribution
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a surge protector for accessing to a low voltage distributing system, which adopts a standard base of a JB7121 modularization terminal composite apparatus, and adopts pluggable modules inserted on the base, wherein the module is provided with a fault signal display window; in the inner of the module, a heat failure disengagement device, a breakdown failure disengagement device and a zinc oxide voltage-sensitive resistor are connected in series between two electrodes of the module; the lower end of the failure disengagement device is connected with a lever, one end of the lever is connected with a spring, the end of the lever is connected with two annunciators, the lever is provided with a contact, and one end of the contact is in contact with a contact switch. The surge protector has the advantages of wide application range and convenient replacement, and can effective protect the safety of an electric network.
Description
Technical field
The utility model relates to a kind of lightning protection electrical equipment of low-voltage distribution system, particularly a kind of surge protector that inserts low-voltage distribution system.
Background technology
Be struck by lightning or other reason when producing high-frequency pulse voltage when utility grid, will be caused damage power consumption equipment.Especially along with the popularizing and the extensive application of microelectronic device of computer, the overvoltage surge protection of low voltage electric network is paid close attention to by people already.
The appearance of Zinc-oxide piezoresistor provides condition for the overvoltage surge that solves low voltage electric network; generally speaking; Zinc-oxide piezoresistor is parallel to low voltage power distribution network; under normal circumstances Zinc-oxide piezoresistor is in high resistance state; when electrical network because of thunderbolt or other reason when overvoltage surge occurring; Zinc-oxide piezoresistor will be introduced the earth with overvoltage surge, thereby protect the power consumption equipment on the electrical network immediately in nanosecond conducting rapidly in the time.After this surge voltage was by Zinc-oxide piezoresistor and disappearance, Zinc-oxide piezoresistor changed to high resistance state again, thereby does not influence the normal operation of electrical network.
Zinc-oxide piezoresistor may increase and heating etc. as puncture, leakage current because a variety of causes lost efficacy.So not only do not have overvoltage surge protection, can destroy the normal operation of low voltage electric network on the contrary low voltage electric network.
Low-voltage distribution system is on the product type selecting; multiple different structure is arranged; append thunder resisting equipment etc. as terminal appliance distribution box, low-voltage distribution cabinet, motor control center, legacy system, the requirement of extensive adaptive capacity will be arranged the surge protector that inserts low-voltage distribution system like this.
The content of utility model
At the problems referred to above, the purpose of this utility model be to provide a kind of piezo-resistance because of puncture or the big heating of leakage current can automatic disconnection when losing efficacy and can report to the police, safe and reliable surge protector.
Another purpose of the present utility model also is to provide a kind of various low-voltage distribution systems that are widely used in, surge protector.
By the electrical principle of as shown in Figure 3 surge protector as can be known, surge protection device is made up of 4 utmost points, is connected between A, B, C, N and the ground wire.Each constitutes a surge protector by puncturing inefficacy disconnector 100, thermal failure disconnector 200 and varistor 100 in extremely.
In order to achieve the above object, surge protector of the present utility model adopts following technical solution, and the surge protector that inserts low-voltage distribution system comprises pedestal and insert in pluggable module on the pedestal that module is inserted on the track slot of pedestal by pin; Its module has a shell, the fault-signal display window is arranged on the shell, two electrodes and remote signalling contact switch, portion within it, the thermal failure disconnector is being connected in series between two electrodes, puncture inefficacy disconnector and zinc oxide varistor, lower end at the inefficacy disconnector links to each other with a lever, one end of lever is connecting a spring, lever end is connected with two annunciators that the color that is being arranged above and below is different, annunciator below when normal is relative with the signal display window, the other end hinged securement of lever, also be connected with a contact on lever, the other end of contact contacts with the remote signalling contact switch.
Thermal failure disconnector in the above-mentioned surge protector is the conducting strip and the bump that punctures the inefficacy disconnector that are welding Zinc-oxide piezoresistor.
The pedestal of above-mentioned surge protector and module general structure have adopted JB 7121 modularization terminal combinations electrical equipment standards, the overall dimension of modularization pedestal and module, 35mm attachment rail.
The function such as the reality of the surge protector of access low-voltage distribution system of the present utility model are existing, surge protector is inserted between the utmost point and ground wire of low-voltage circuit, under normal circumstances, the remote signalling contact disconnects, green board on the lever faces the fault-signal display window, and when the leakage current of piezo-resistance increases and adstante febre, its thermal failure disconnector fusing disconnects, series circuit in the module is disconnected, reach the purpose of protection electrical network; Simultaneously, under the effect of spring, lever rotates, and the contact and the remote signalling contact that link to each other with lever is disengaged, thereby make the closing of contact send fault-signal; In addition,, also make original annunciator rotate, make top danger signal board align the fault-signal display window facing to the fault-signal display window because lever rotates.
Too high and when puncturing, puncture disconnector to disconnect when surge voltage, can take place equally and the fusing of thermal failure disconnector disconnects the same result, promptly circuit disconnects, and sends the fault signal of telecommunication, and the annunciator of fault-signal display window is a redness by the green upset.
Because the surge protector of access low-voltage circuit of the present utility model has adopted said structure; increase and heating or when breakdown when the piezo-resistance leakage current like this; its circuit meeting automatic disconnection is also sent the fault signal of telecommunication and the form signal; not only can effectively protect low voltage electric network; and can in time send fault-signal, make the relevant personnel in time find fault and make timely processing.
Adopted modularized design because surge protector of the present utility model comprises in addition, when breaking down, only need pull up out of order module, changed new module, can conveniently under situation about not having a power failure also change like this.
And because the surge protector general structure has adopted JB 7121 modularization terminal combinations electrical equipment standards; modularization overall dimension, 35mm attachment rail make this product be suitable for terminal appliance distribution box, low-voltage distribution cabinet, motor control center, legacy system and append various conditions such as thunder resisting equipment.
Description of drawings
Fig. 1 is the shape assumption diagram that inserts the surge protector of low-voltage distribution system;
Fig. 2 is the end view of surge protector of the access low-voltage distribution system of Fig. 1;
Fig. 3 is the surge protector electrical schematic diagram that inserts low-voltage distribution system;
Fig. 4 is the modular structure figure that inserts the surge protector of low-voltage distribution system;
Fig. 5 is the thermal failure view of module shown in Figure 3;
Fig. 6 is the puncture failure state schematic diagram of module shown in Figure 3.
Embodiment
As depicted in figs. 1 and 2, insert the surge protector of low-voltage distribution system and be made up of pedestal 1 and the pluggable module 2 that inserts on the pedestal 1, surge protector contour structures, attachment rail all meet JB 7121 modularization terminal combinations electrical equipment standards.
As shown in Figure 4, the module of surge protector comprises shell 7, Zinc-oxide piezoresistor 13, fuse link 9, lever 6 and remote signalling contact 5, also has a form 3 in addition on shell 7.The Zinc-oxide piezoresistor 13 that is installed in the shell 7 links to each other with the electrode pins of module, one end of fuse link 9 is welded on the conducting strip of piezo-resistance 13 by tin welding spot 8, the other end of fuse link 9 links to each other with lever 6, lever 6 left ends are articulated on the module, the right-hand member end is connected to the two block signal boards 10 that connect up and down, 11, top annunciator 10 is red, following annunciator 11 is green, also be connected with a tension spring 12 at this end, the other end has a contact board 11 for green, also be connected with a tension spring 12 at this end, the other end has a contact 5 to withstand module housing 7 a remote signalling contact switch 4 outward, makes it keep disconnecting.
As shown in Figure 5, when the leakage current increase of piezo-resistance 13, when making its temperature be elevated to a certain degree, as the tin welding spot fusing of thermal failure disconnector, fuse link 9 is disconnected with piezo-resistance 13 be connected, circuit is cut off, the earth connection that is electrical network is disconnected, and reaches the purpose of protection electrical network; Simultaneously, under the tension of tension spring 12, lever 6 rotates certain angle, this moment, the green board 11 of lever 6 right parts left original position, and coupled top danger signal board 10 then forwards to over against the position of fault-signal display window 3, made form show the red-fault signal, simultaneously, the contact 5 that links to each other with lever 6 other ends also clockwise rotates, and then remote signalling contact switch 4 closures are sent the fault remote signals.
As shown in Figure 6, it is too high to have served as unrestrained surge current, and then fuse link 9 fusing disconnects, and forms that puncturing lost efficacy breaks away from, and the action when module can be finished and break away from as above-mentioned thermal failure disconnects ground path, and sends fault-signal by form 3 and remote signalling contact switch 4.
So, the surge protector of the access low-voltage distribution system that the utility model provides no matter in piezo-resistance because electric leakage when gushing when increasing heating and losing efficacy also breakdown inefficacy, earthed circuit is disconnected, thereby reach the purpose of protection electrical network, send remote signals simultaneously, make relevant management and maintenance personal can in time know failure condition, and can find that easily which module has fault, so that in time handle according to form information; Elsewhere owing to adopted the modular construction design, only need during processing malfunctioning module pulled up and plug new module and get final product, keep in repair again and needn't cut off circuit earlier, made things convenient for staff's maintenance.
In addition, adopted JB7121 modularization terminal combinations electrical equipment standard owing to insert the surge protector general structure of low-voltage distribution system, modularization overall dimension, 35mm attachment rail, system appends various conditions such as thunder resisting equipment.
Claims (4)
1, a kind of surge protector that inserts low-voltage distribution system is characterized in that: the surge protector that inserts low-voltage distribution system comprises pedestal and inserts in pluggable module on the pedestal that module is inserted on the track slot of pedestal by pin; Its module has a shell, the fault-signal display window is arranged on the shell, two electrodes and remote signalling contact switch, portion within it, the thermal failure disconnector is being connected in series between two electrodes, puncture inefficacy disconnector and zinc oxide varistor, lower end at the inefficacy disconnector links to each other with a lever, one end of lever is connecting a spring, lever end is connected with two annunciators that the color that is being arranged above and below is different, annunciator below when normal is relative with the signal display window, the other end hinged securement of lever, also be connected with a contact on lever, the other end of contact contacts with the remote signalling contact switch.
2, the surge protector of access low-voltage distribution system as claimed in claim 1 is characterized in that: above-mentioned thermal failure disconnector is the conducting strip and the bump that punctures the inefficacy disconnector that are welding Zinc-oxide piezoresistor.
3, the surge protector of access low-voltage distribution system as claimed in claim 1 is characterized in that: above-mentioned puncture inefficacy disconnector is a fuse link.
4, the surge protector of access low-voltage distribution system as claimed in claim 1; it is characterized in that: the pedestal of above-mentioned surge protector and module general structure have adopted JB 7121 modularization terminal combinations electrical equipment standards, the overall dimension of modularization pedestal and module, 35mm attachment rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02243633 CN2566515Y (en) | 2002-08-05 | 2002-08-05 | Surge protector for place-in low voltage distributing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02243633 CN2566515Y (en) | 2002-08-05 | 2002-08-05 | Surge protector for place-in low voltage distributing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2566515Y true CN2566515Y (en) | 2003-08-13 |
Family
ID=33715823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02243633 Expired - Fee Related CN2566515Y (en) | 2002-08-05 | 2002-08-05 | Surge protector for place-in low voltage distributing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2566515Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100352122C (en) * | 2005-07-13 | 2007-11-28 | 浙江神龙电器有限公司 | Surge protector with piece separation |
| CN100438253C (en) * | 2006-02-28 | 2008-11-26 | 上海电器科学研究所（集团）有限公司 | Terminal surge protector with multi-protecting mode and protecting method |
| CN101752857A (en) * | 2009-12-21 | 2010-06-23 | 浙江恒丰光电技术有限公司 | Lightning-prevention and surge-resistance protector of low-voltage distribution system |
| CN102005751A (en) * | 2010-09-26 | 2011-04-06 | 浪潮电子信息产业股份有限公司 | Safe high-efficiency high-voltage power supply method for server |
| CN101651326B (en) * | 2009-08-13 | 2011-06-08 | 厦门大恒科技有限公司 | Signal wire lightning protection protector with failure display function |
| CN1744406B (en) * | 2005-06-27 | 2012-01-18 | 孙巍巍 | On-line integral pluggable signal circuit surge protector |
| CN1866657B (en) * | 2005-05-18 | 2012-04-18 | 德恩及索恩两合股份有限公司 | Surge arrester |
| CN101171650B (en) * | 2005-05-04 | 2012-07-04 | 基瓦斯珀尔有限公司 | An overvoltage protection |
| CN1998121B (en) * | 2004-05-25 | 2012-08-22 | 立维腾制造有限公司 | Surge protection method and surge suppression circuit |
| CN102780217A (en) * | 2011-05-11 | 2012-11-14 | 上海电科电器科技有限公司 | Surge protection device |
| CN103094013A (en) * | 2011-11-07 | 2013-05-08 | 施耐德电器工业公司 | Surge protective device (SPD) and trip mechanism thereof |
-
2002
- 2002-08-05 CN CN 02243633 patent/CN2566515Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1998121B (en) * | 2004-05-25 | 2012-08-22 | 立维腾制造有限公司 | Surge protection method and surge suppression circuit |
| CN101171650B (en) * | 2005-05-04 | 2012-07-04 | 基瓦斯珀尔有限公司 | An overvoltage protection |
| CN1866657B (en) * | 2005-05-18 | 2012-04-18 | 德恩及索恩两合股份有限公司 | Surge arrester |
| CN1744406B (en) * | 2005-06-27 | 2012-01-18 | 孙巍巍 | On-line integral pluggable signal circuit surge protector |
| CN100352122C (en) * | 2005-07-13 | 2007-11-28 | 浙江神龙电器有限公司 | Surge protector with piece separation |
| CN100438253C (en) * | 2006-02-28 | 2008-11-26 | 上海电器科学研究所（集团）有限公司 | Terminal surge protector with multi-protecting mode and protecting method |
| CN101651326B (en) * | 2009-08-13 | 2011-06-08 | 厦门大恒科技有限公司 | Signal wire lightning protection protector with failure display function |
| CN101752857A (en) * | 2009-12-21 | 2010-06-23 | 浙江恒丰光电技术有限公司 | Lightning-prevention and surge-resistance protector of low-voltage distribution system |
| CN102005751A (en) * | 2010-09-26 | 2011-04-06 | 浪潮电子信息产业股份有限公司 | Safe high-efficiency high-voltage power supply method for server |
| CN102780217A (en) * | 2011-05-11 | 2012-11-14 | 上海电科电器科技有限公司 | Surge protection device |
| CN102780217B (en) * | 2011-05-11 | 2015-06-17 | 上海电科电器科技有限公司 | Surge protection device |
| CN103094013A (en) * | 2011-11-07 | 2013-05-08 | 施耐德电器工业公司 | Surge protective device (SPD) and trip mechanism thereof |
| CN103094013B (en) * | 2011-11-07 | 2015-12-23 | 施耐德电器工业公司 | The tripping mechanism of surge protector and surge protector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2566515Y (en) | Surge protector for place-in low voltage distributing system | |
| CN104779604B (en) | A kind of neutral-point grounding resistance cabinet | |
| CN201812614U (en) | Explosion-proof lightning arrester | |
| CN2676478Y (en) | Electric surge protector | |
| CN201266524Y (en) | Surge protector | |
| CN107978495A (en) | A kind of protective device of breaker | |
| CN201466676U (en) | Secondary grounding protector of electric power voltage transformer | |
| CN2831573Y (en) | Collapsible dropped surge protector | |
| CN210806738U (en) | Thermal separation device capable of being interrupted in sequence through rotary linkage | |
| CN201234129Y (en) | Surge protector | |
| CN2645314Y (en) | Surge protection assembly | |
| CN109713639B (en) | Intelligent separation type surge protector | |
| CN2682713Y (en) | Surge protection assembly | |
| CN201478826U (en) | Matrix type lightning surge protector | |
| CN113054624A (en) | Special breaker for intelligent low-voltage surge protector and control method thereof | |
| CN113258527A (en) | Over-voltage protector for remote conveying alarm information | |
| CN100352122C (en) | Surge protector with piece separation | |
| CN201638767U (en) | Surge protection device | |
| CN1310391C (en) | A protective circuit | |
| CN201515199U (en) | Removable and suspensible drop-out type arrester | |
| CN205901237U (en) | Real -time protection device of cable sheath | |
| CN214479605U (en) | Signal surge protector | |
| CN204681088U (en) | A kind of neutral-point grounding resistance cabinet | |
| CN204216582U (en) | A kind of surge protector Intelligent hot departs from checkout gear | |
| CN212033767U (en) | Novel XDSL overcurrent and overvoltage protection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030813 Termination date: 20100805 |