CN201557212U - Network optical-fiber access cabinet - Google Patents
Network optical-fiber access cabinet Download PDFInfo
- Publication number
- CN201557212U CN201557212U CN2009202417841U CN200920241784U CN201557212U CN 201557212 U CN201557212 U CN 201557212U CN 2009202417841 U CN2009202417841 U CN 2009202417841U CN 200920241784 U CN200920241784 U CN 200920241784U CN 201557212 U CN201557212 U CN 201557212U
- Authority
- CN
- China
- Prior art keywords
- lightning
- protection
- module
- power
- electro
- 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
Abstract
The utility model discloses a network optical-fiber access cabinet, comprising a power supply input end, lightning protection modules, an electro-protection module, a power supply socket, an optical network unit and a wiring module. The lightning protection module comprises a lightning protection air switch and a lightning protection circuit; the electro-protection module is an auto reclosing electro-protection device; the lightning protection modules are connected on a live wire and a zero wire between the input end of the power supply and the auto reclosing electro-protection device in parallel; the power supply socket is connected between the live wire and the zero wire at the output end of the auto reclosing electro-protection device; the optical network unit takes electricity from the power supply socket. The network optical-fiber access cabinet not only can effectively prevent lightning and comprehensively protect electro-equipment, but also can effectively prevent the switch from frequent tripping and conduct automatic recovery, realizes unattended power management, and further ensures electricity safety of the network equipment.
Description
Technical field
The utility model relates to a kind of network fiber and inserts rack.
Background technology
In recent years along with the development of society, people constantly increase for the demand of communication service, except narrow band services such as traditional speech, TDM special line, demand for broadband data service increases rapidly, optical fiber makes the optical fiber of access means become the developing direction of Access Network as transmission of high-rate, big capacity, multiple services best medium.Insert rack as network fiber indispensable in the EPON connecting system transmission, traditional electricity protection switch---circuit breaker adds supply socket powers to various network device for being to use of all adopting, and power consumption equipment is implemented overload, short-circuit protection.
Traditional electricity protection switch only possesses overload, short circuit or creepage protection function, and defencive function is single, and power consumption equipment is not had comprehensively protection and indicative functions such as mistake/under-voltage, short circuit/overload, electric leakage.Because network fiber inserts rack and generally is installed in the open air, it is wide to distribute, poor working environment; often be subjected to the influence of thunder and lightning; therefore the lightning-protection module that meets national standard and relevant industries standard must be installed, the maximum discharge current of general lightning-protection module is 40kA, and power consumption equipment is implemented lightning protection.Lightning-protection module is when having thunder and lightning to invade power supply or signal transmssion line; the earth of rapidly lightning current being released; and the overvoltage Limiting that thunder and lightning is caused is within the withstand voltage scope that power consumption equipment can bear; but lightning-protection module can cause the frequent tripping operation of electricity protection switch when leakage current; cause and to power continuously to the network equipment; the more serious website that has is because hypertelorism; the attendant has no idea at short notice switch to be closed a floodgate to restore electricity; make the network equipment move back clothes, the interrupt signal transmission.
Application number be 200920184835.1 utility model patent proposed a kind of can automatic reclosing and comprehensive, the safe and reliable single-phase intelligent type Protector for using electricity of safeguard function, comprise main switch, direct current regulation circuit module, single-chip microcomputer, drive circuit module, mistake/undervoltage detection circuit module, short circuit/overload detection circuit module, electric-leakage detection circuit module and failure indicating circuit module.Cross/the undervoltage detection circuit module, short circuit/overload detection circuit module and electric-leakage detection circuit module detect in real time to the single phase poaer supply circuit, and will detect data and send single-chip microcomputer to and carry out judgment processing, if when detecting faults such as having overvoltage, under-voltage, short circuit, overload, electric leakage in the single phase poaer supply circuit, single-chip microcomputer can be implemented protection to protected equipment and power supply circuits in time by drive circuit module control main switch open circuit; In time show failure condition by the failure indicating circuit module simultaneously, for electric circuit inspection, fix a breakdown and provide convenience.After main switch disconnects, three testing circuit modules will continue circuit is detected, and get rid of until fault, and the normal back of circuit single-chip microcomputer can in time be connected circuit by drive circuit module control main switch, guarantees the power consumption equipment operate as normal.If fault exists all the time, then main switch keeps disconnecting, and is excluded up to fault.The utlity model has the defencive function of main electric fault such as overvoltage, under voltage, overload, short circuit, electric leakage; and have functions such as Fault Identification, faulty indication, the detection of combined floodgate prior fault, remote monitoring, online modification parameter and software upgrading; compare with traditional Protector for using electricity; safeguard function is more comprehensive; more secure and reliable to use, and be fit to be used with thunder resisting equipment.
Summary of the invention
The technical problems to be solved in the utility model is: the deficiency that inserts rack at existing network fiber; the single-phase intelligent type Protector for using electricity of application of aforementioned; provide a kind of improved network fiber to insert rack; effectively lightning protection and general protection power device; can effectively prevent the frequent tripping operation of switch; and can recover automatically, realize the unattended management of power use, further guarantee the Electrical Safety of the network equipment.
The technical solution of the utility model is: a kind of network fiber inserts rack; comprise power input; lightning-protection module; the electricity protection module; supply socket; optical network unit and Wiring module; described lightning-protection module comprises lightning protection air switch and lightning protection circuit; described electricity protection module is the automatic reclosing power protector; described lightning-protection module is connected in parallel on the live wire and zero line between power input and the automatic reclosing power protector; connect supply socket between the live wire of the output of described automatic reclosing power protector and the zero line, optical network unit power taking from the supply socket.
Further; the live wire of described automatic reclosing power protector output is also connecting the input live wire of some radiator fans; also be connected with the temperature control module of the some radiator fan work of control on the zero line of automatic reclosing power protector output, the output of temperature control module is connected to the zero line of the input of radiator fan.
The utility model has the advantages that: adopt the automatic reclosing power protector; realize online measuring ability and overload (overcurrent), short circuit, overvoltage, under-voltage, creepage protection function by Control Technique of Microcomputer; electric shock of the collection person and equipment earth leakage protective and unattended operation automatic reclosing are one; in a single day in use detect with electric fault and protect tripping operation immediately; automatic reclosing then after pending fault is eliminated has fundamentally solved because of electricity consumption fault trip interruption of power supply needs personnel and has arrived the on-the-spot maintenance issues that closes a floodgate.Network fiber of the present utility model inserts rack and has reliable and stable lightning protection and electricity protection function, and radiator fan of being furnished with and temperature control module guarantee that rack at high temperature also can operate as normal.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is the modular structure figure that the network fiber of present embodiment inserts rack;
Fig. 2 is the structure chart that the network fiber of present embodiment inserts the automatic reclosing power protector of rack.
Wherein: 1 lightning-protection module; 11 lightning protection air switches; 12 lightning protection circuits; 2 automatic reclosing power protectors; 3 supply sockets; 4 optical network units; 5 radiator fans; 6 temperature control modules; 7 Wiring modules; 8 fiber melt trays.
Embodiment
Embodiment: it is dissimilar that network fiber access rack mainly contains wall-hanging, wall embedded type, vertical rack etc., be mainly used in FTTB (Fiber to The Building) the networking pattern of Fiber-To-The-Building, a plurality of broadband users share cover ONU (Optical Network Unit, an optical network unit) equipment.Product is applicable to the high bandwidth service fulfillment, broadband speed-raising occasion.Also satisfy simultaneously the old town flexibly and transform demand, save the occasion of fibre core and FPDP resource.Networking pattern cost with this kind pattern not only is lower than the FTTH pattern, also is lower than the traditional cable transform pattern, has realized the access of integrated services such as VOIP speech business, broadband access network business, HDTV (High-Definition Television) business, CATV business, Visual communications.Also can be used as simultaneously the distributing cabinet of floor distributing frame in the comprehensive wiring of intelligent building.
The network fiber of present embodiment inserts rack as shown in Figure 1; comprise power input; lightning-protection module 1; the electricity protection module; supply socket 3; optical network unit 4 and Wiring module 7; described lightning-protection module 1 comprises lightning protection air switch 11 and lightning protection circuit 12; it is single-phase intelligent type Protector for using electricity in 200920184835.1 the utility model that described electricity protection module adopts as shown in Figure 2 application number; it is automatic reclosing power protector 2; described lightning-protection module 1 is connected in parallel on the live wire and zero line between power input and the automatic reclosing power protector 2, and the output of described automatic reclosing power protector 2 connects supply socket 3.Optical network unit 4 power taking from the supply socket 3.
Lightning protection air switch 11 is connected before the input of lightning protection circuit 12; under normal operation, remain closed conducting; when the power input that inserts rack when the network fiber of present embodiment has thunder and lightning to invade; the voltage at lightning protection circuit 12 two ends raises rapidly; lightning protection circuit is started; leakage current over the ground; and the voltage clamp at its two ends put below 1500V; and the anti-lightning strike surge protection module in automatic reclosing power protector 2 is carried out secondary and is released; residual voltage is controlled at below the 1000V, and the rear end power supply is implemented protection.When lightning protection circuit occurring because of thunderbolt energy excessive (surpass lightning-protection module degree of protection) or when useful life of surpassing lightning-protection module service life causing lightning-protection module to lose efficacy, the lightning protection air switch disconnects, and the protection lightning protection circuit is avoided damaging.Lightning protection air switch 11 and lightning protection circuit 12 are prior art all, repeat no more.
The mistake of automatic reclosing power protector 2/undervoltage detection circuit module, short circuit/overload detection circuit module and electric-leakage detection circuit module detect in real time to the electric power thus supplied of carrying out network fiber and inserting in the rack, and will detect data and send single-chip microcomputer to and carry out judgment processing.
Overvoltage/under-voltage protection: when power input voltage too high (greater than 280V) or low excessively (less than 165V), the mistake of automatic reclosing power protector 2/undervoltage detection circuit module is given the single-chip microcomputer signal, power protector will trip under the control of single-chip microcomputer, cut off main switch, interruption is to the power supply of supply socket 3, support equipment safety;
Overload protection: as the output load current of automatic reclosing power protector excessive (greater than 72.45A), short circuit/the overload detection circuit of automatic reclosing power protector 2 detects signal, makes the power protector tripping operation, cuts off main switch, interruption is to the power supply of supply socket 3, support equipment safety;
Earth leakage protective: there are electric leakage (greater than 30mA) in equipment or rear end power consumption equipment in rack, and the electric-leakage detection circuit module detects signal, and automatic reclosing power protector 2 will carry out trip protection; Cut off main switch, interrupt power supply, support equipment safety supply socket 3;
Short-circuit protection: as load current excessive (greater than 180A), the automatic reclosing power protector will carry out trip protection; Cut off main switch, interrupt power supply, support equipment safety supply socket 3.
After main switch disconnects, three testing circuit modules will continue circuit is detected, and get rid of until fault, and the normal back of circuit single-chip microcomputer can in time be connected circuit by drive circuit module control main switch, automatic reclosing restores electricity, and guarantees network equipment operate as normal.If fault exists all the time, then main switch keeps disconnecting, be excluded up to fault, thereby fundamentally eliminated and lightning-protected product between the contradiction that exists, can really realize the unattended management of power use, further guarantee the Electrical Safety of the network equipment.
After barrier causes automatic reclosing power protector 2 tripping operation for some reason, protector 3 times detection time be 1,2,3 minute, after this be to detect once in 5 minutes, after 31 minutes, be extended for 30 minutes detection time, do not limit number of times; Meet the power supply of combined floodgate condition protector combined floodgate, otherwise do not close a floodgate, behind any once combined floodgate, timing one minute if can keep 1 minute operate as normal, assert that then this closes a floodgate successfully the metering zero clearing.
Network fiber inserts the power taking from the supply socket 3 of power supply adaptor that the network equipment in the rack and other auxiliary equipment adopt autogamy, and the network equipment gets final product operate as normal.Also power taking from the supply socket 3 of optical network unit, the external cable welding is after fiber melt tray 8 is connected with tail optical fiber, and tail optical fiber is connected to optical network unit 3, and optical network unit 3 outputs are connected with Wiring module 7, draw holding wire from Wiring module 7 and give the user, make things convenient for terminal block.Wiring module 7 can be selected 110 high frequency Wiring modules, MDF audio interface wire module or RJ45 distributing board for use, and is flexible for installation, easy to operate.
Also be connected with the temperature control module 6 of some radiator fan 5 work of control on the zero line of the output of automatic reclosing power protector 2; the output of temperature control module 6 is connected to the zero line of radiator fan 5 inputs; the input live wire of described radiator fan 5 is connected on the live wire of output of automatic reclosing power protector 2; the AC power that is 220V is connected to live wire through the output of automatic reclosing power protector 2; be directly connected to radiator fan 5 then; zero line is connected to temperature control module 6, and is connected to radiator fan 5 behind temperature control module 6.The temperature control module design temperature is 45 ℃, according to variation of temperature in the rack, temperature control module 6 presents connected sum and disconnects two states, thereby the startup and the shutoff of control radiator fan 5, promptly when temperature in the rack is higher than 45 ℃ (error is ± 3 ℃), temperature control module 6 starts, be communicated with the radiator fan working power, radiator fan is started working, and dispels the heat to rack, when temperature in the rack is lower than 35 ℃ (error is ± 3 ℃), temperature control module 6 will turn-off, and disconnect the radiator fan working power, and radiator fan quits work, in order to prolonging radiator fan useful life, but energy savings also simultaneously.
The above only is a preferred embodiment of the present utility model, can not limit the scope that the utility model is implemented with this, and all simple conversion of doing according to the utility model claim and description all should still belong to protection range of the present utility model.
Claims (2)
1. a network fiber inserts rack; comprise power input; lightning-protection module (1); the electricity protection module; supply socket (3); optical network unit (4) and Wiring module (7); it is characterized in that: described lightning-protection module (1) comprises lightning protection air switch (11) and lightning protection circuit (12); described electricity protection module is automatic reclosing power protector (2); described lightning-protection module (1) is connected in parallel on the live wire and zero line between power input and the automatic reclosing power protector (2); connect supply socket (3) between the live wire of the output of described automatic reclosing power protector (2) and the zero line, optical network unit (4) is gone up power taking from supply socket (3).
2. network fiber according to claim 1 inserts rack; it is characterized in that: the live wire of described automatic reclosing power protector (2) output is also connecting the input live wire of some radiator fans (5); also be connected with the temperature control module (6) of the some radiator fans of control (5) work on the zero line of automatic reclosing power protector (2) output, the output of temperature control module (6) is connected to the zero line of the input of radiator fan (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202417841U CN201557212U (en) | 2009-12-16 | 2009-12-16 | Network optical-fiber access cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202417841U CN201557212U (en) | 2009-12-16 | 2009-12-16 | Network optical-fiber access cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201557212U true CN201557212U (en) | 2010-08-18 |
Family
ID=42616901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202417841U Expired - Fee Related CN201557212U (en) | 2009-12-16 | 2009-12-16 | Network optical-fiber access cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201557212U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102692934A (en) * | 2011-10-26 | 2012-09-26 | 上海广诚信息技术有限公司 | Temperature control and protection system of network equipment in industrial environment |
| CN103872768A (en) * | 2012-12-18 | 2014-06-18 | 苏州工业园区新宏博通讯科技有限公司 | Lightning stroke maintenance-free circuit |
-
2009
- 2009-12-16 CN CN2009202417841U patent/CN201557212U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102692934A (en) * | 2011-10-26 | 2012-09-26 | 上海广诚信息技术有限公司 | Temperature control and protection system of network equipment in industrial environment |
| CN103872768A (en) * | 2012-12-18 | 2014-06-18 | 苏州工业园区新宏博通讯科技有限公司 | Lightning stroke maintenance-free circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10211625B2 (en) | Mitigation of arc flash hazard in photovoltaic power plants | |
| CN102931684A (en) | Photovoltaic alternate current and direct current intelligent distribution box | |
| CN203135421U (en) | Arc light protecting system | |
| CN106026160A (en) | Distributed photovoltaic generation anti-islanding protective device | |
| CN201563174U (en) | Video monitoring front-end control box | |
| CN201616596U (en) | Single-phase intelligent type alternating-current distribution box | |
| CN201557212U (en) | Network optical-fiber access cabinet | |
| CN203180512U (en) | Low tension side power supply surge protector | |
| CN202586265U (en) | Power system protection device | |
| CN107769162A (en) | Generator protection tripgear based on 3/2 wiring condition power plant | |
| CN107968329A (en) | Grid-connected access case and its access system | |
| CN207398811U (en) | Intelligent monitoring protection integrated machine with electric automatic control structure | |
| CN203707585U (en) | High-voltage switchgear | |
| CN202495803U (en) | Isolation power supply cabinet used in medical treatment II type place | |
| CN103809060B (en) | Platform district low-voltage zero line current leakage detection system and detection of electrical leakage method | |
| CN201015166Y (en) | Signal lightning protection type automatic reclosed switch | |
| JP2009240029A (en) | Lightning protection device and housing box | |
| CN107026424A (en) | A kind of distribution low-voltage master switch automatic time delay closing device | |
| US6420850B1 (en) | Telecommunication power distribution systems and apparatuses and methods of supplying power to a telecommunication device | |
| CN208078643U (en) | A kind of device with master-slave back-up lightning protection device | |
| KR101473224B1 (en) | Power distribution board for preventing of black out and arc fault | |
| CN201289967Y (en) | Distribution box for base station | |
| CN206712478U (en) | A kind of distributed photovoltaic power generation grid-connected system | |
| CN2899225Y (en) | Break zero-loss phase protecting distribution box | |
| CN216056316U (en) | Line microcomputer protection system |
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: 20100818 Termination date: 20121216 |