CN2914443Y - Surge protector of AC power supply - Google Patents

Surge protector of AC power supply Download PDF

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Publication number
CN2914443Y
CN2914443Y CN 200620097324 CN200620097324U CN2914443Y CN 2914443 Y CN2914443 Y CN 2914443Y CN 200620097324 CN200620097324 CN 200620097324 CN 200620097324 U CN200620097324 U CN 200620097324U CN 2914443 Y CN2914443 Y CN 2914443Y
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CN
China
Prior art keywords
line
piezo
resistance
protective unit
unit
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 - Lifetime
Application number
CN 200620097324
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Chinese (zh)
Inventor
刘江锋
邹崇振
廖平
游汉涛
徐向平
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.)
Fiberhome Telecommunication Technologies Co Ltd
Original Assignee
Fiberhome Telecommunication Technologies Co Ltd
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
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Priority to CN 200620097324 priority Critical patent/CN2914443Y/en
Application granted granted Critical
Publication of CN2914443Y publication Critical patent/CN2914443Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a surge protector of AC power supply in communication technical field. The surge protector comprises an input terminal, a circuit box, an output terminal, and a first-class protection unit inside the circuit box, and is characterized in that a second-class protection unit and an impedance unit serially connected between the first-class and second-class protection units are arranged in the surge protector. The first-class protection unit includes a piezoresistor spanning across input lines Lin, Nin or PEin, and the second-class protection unit includes a piezoresistor spanning across output lines Lout, Nout and PEout. The impedance unit includes two inductors L1 and L2 serially connected between the input line Lin and the output line Lout and between the input line Nin and the output line Nout. By adopting two-class overvoltage protection, the utility model has improved protection effect and can improve the safety and reliability of device. Further, a display alarm unit is provided to facilitate the operation.

Description

The AC power Surge Protector
Technical field
The utility model relates to a kind of AC power Surge Protector that uses at communication technical field, especially for provide AC power to connect the AC power Surge Protector of input and power port lightning Protection for communication equipment.
Background technology
Extensive use along with communication equipment; thunderbolt obviously increases the harm of communication equipment; and the device power supply (DPS) port is one of main path of thunder and lightning intrusion; therefore; the development power source surge protector carries out lightning Protection to the communication equipment power port; to improve the equipment interference free performance, it is very necessary to avoid communication equipment damaged by thunderbolt.Tradition is used mainly contains lightning guard; surge protector etc.; as the lightning guard that March 29, disclosed publication number was a kind of communication terminal device of CN2371715 in 2000; though the components and parts that it uses are few; simple in structure; relative raising the fail safe and the useful life of equipment; they generally have only the one-level overvoltage protection; the effect that uses protection also is not very desirable; and they in the course of the work if problem; there is not Presentation Function yet; do not know whether also to be in normal operating state, this just for having brought inconvenience in the use, has increased risk.
Summary of the invention
The utility model is in order to solve top technical problem; invented a kind of AC power Surge Protector of support equipment safe and reliable operation, especially for provide AC power to connect the AC power Surge Protector of input and power port lightning Protection for communication equipment.
The utility model has adopted following technical scheme: comprise the one-level protective unit in input, circuit box, output, the circuit box, its difference is also to be provided with the secondary protective unit and is serially connected with impedance unit between the I and II protective unit, and described one-level protective unit is by at incoming line L In, N InAnd PE InBetween the cross-over connection piezo-resistance constitute; Described secondary protective unit is by at output line L Out, N OutAnd PE OutThe cross-over connection piezo-resistance constitutes between the line; Described impedance unit is by at incoming line L InWith output line L OutBetween, incoming line N InWith output line N OutDifference tandem electric inductance L between the line 1, L 2Constitute.
By above-mentioned technical scheme, be connected with the display alarm unit in the described one-level protective unit, be interconnected to constitute by discharge cock, 2 rectifier bridges, resistance R 1, optical switch, indicator light, buzzers, wherein rectifier bridge, resistance R 1 are connected to incoming line L InAnd N InBetween, optical switch, indicator light, buzzer and 2 rectifier bridges join respectively.
By above-mentioned technical scheme, in the one-level protective unit, at incoming line L InAnd N InBetween be connected with piezo-resistance MOV 1At incoming line L InWith PE InBe connected with piezo-resistance MOV between the line 3At incoming line N InWith PE InBe connected with piezo-resistance MOV between the line 5
By above-mentioned technical scheme, in the one-level protective unit, also be connected to gas discharge tube GDT, described gas discharge tube GDT one end is connected in piezo-resistance MOV 3With MOV 5The phase contact, the other end and PE InLink to each other.
By above-mentioned technical scheme, in the secondary protective unit, at output line L OutAnd N OutBetween be connected with piezo-resistance MOV 2At output line L OutWith PE OutBe connected with piezo-resistance MOV between the line 4At output line N OutWith PE OutBe connected with piezo-resistance MOV between the line 6
The utility model has been obtained following beneficial effect:
1, adopts the two-stage overvoltage protection, strengthened the effect of protection, improved fail safe and reliability that equipment uses;
2, have the display alarm unit, more convenient to use, also further strengthened the fail safe and the reliability of its use.
Description of drawings
Fig. 1 is a schematic block circuit diagram of the present utility model;
Fig. 2 is circuit theory diagrams of the present utility model.
Embodiment
Its embodiment is described below with reference to the accompanying drawings:
One-level protective unit, secondary protective unit in the output that the input that it is made of standard three-prong plug and power line, standard three core sockets and power line constitute, circuit box, the circuit box and the impedance unit that is serially connected with between the I and II protective unit constitute, and described one-level protective unit is by at incoming line L In, N InAnd PE InBetween the cross-over connection piezo-resistance constitute; Described secondary protective unit is by at output line L Out, N OutAnd PE OutThe cross-over connection piezo-resistance constitutes between the line; Described impedance unit is by at incoming line L InWith output line L OutBetween, incoming line N InWith output line N OutDifference tandem electric inductance L between the line 1, L 2Constitute.
At incoming line L InAnd N InBetween in the differential mode protective circuit, the one-level protective unit is by piezo-resistance MOV 1Constitute, it mainly acts on is that effect is an earial drainage; Impedance unit is by being serially connected in L InWith L OutBetween inductance L 1Be serially connected in N InWith N OutBetween inductance L 2Constitute, its effect is to make thunder and lightning most of by piezo-resistance MOV 1Earial drainage; The secondary protective unit is by a piezo-resistance MOV 2Constitute, it mainly carries out clamp to voltage.Also comprise a display alarm unit in the one-level protective unit, it is to be interconnected to constitute by discharge cock, 2 rectifier bridges, resistance R 1, optical switch, indicator light, buzzers, and wherein rectifier bridge, resistance R 1 are connected to incoming line L InAnd N InBetween, optical switch, indicator light, buzzer and 2 rectifier bridges join respectively, and indicator light has red green two, and their effect is: green indicating lamp is bright, and the expression input is normal; If all indicator lights all do not work, or red led is bright, and the alarm of buzzing simultaneously then shows the undesired or lightning protection component of power supply input deterioration, needs in time to change Surge Protector.
At incoming line L InWith PE InIn the common mode protective circuit between the line, the one-level protective unit is by piezo-resistance MOV 3Constitute, its effect is an earial drainage; Impedance unit is to be serially connected in incoming line L InIn inductance L 1, its effect is to make thunder and lightning most of by one-level protective unit earial drainage; The secondary protective unit is by piezo-resistance MOV 4Constitute, its effect is a voltage clamp.
At incoming line N InWith PE InIn the common mode protective circuit between the line, the one-level protective unit is by piezo-resistance MOV 5Constitute, its effect is an earial drainage; Impedance unit is to be serially connected in incoming line N InIn inductance L 2, its effect is to make thunder and lightning most of by one-level protective unit earial drainage; The secondary protective unit is by piezo-resistance MOV 6Constitute, its effect is a voltage clamp.
In above-mentioned common mode protective circuit, also be connected with gas discharge tube GDT in the one-level protective unit, described GDT one end is connected in piezo-resistance MOV 3With MOV 5The phase contact, the other end and PE InLink to each other, it is connected in series with piezo-resistance can earial drainage, can prevent the afterflow problem again, and the leakage current after their above-mentioned connections is very little, can bring into play their advantages separately.
The utility model can be connected wired colluding and the line sheath in input and circuit box junction, and line colludes and made things convenient for the suspension of this device or fixing, and the line sheath rotates in order to prevent connecting line, reduces the infringement to connecting line.

Claims (5)

1, a kind of AC power Surge Protector; comprise the one-level protective unit in input, circuit box, output, the circuit box; it is characterized in that also being provided with the secondary protective unit and be serially connected with impedance unit between the I and II protective unit that described one-level protective unit is by at incoming line L In, N InAnd PE InBetween the cross-over connection piezo-resistance constitute; Described secondary protective unit is by at output line L Out, N OutAnd PE OutThe cross-over connection piezo-resistance constitutes between the line; Described impedance unit is by at incoming line L InWith output line L OutBetween, incoming line N InWith output line N OutDifference tandem electric inductance L between the line 1, L 2Constitute.
2, by the described AC power Surge Protector of claim 1; it is characterized in that in described one-level protective unit, being connected with the display alarm unit; be interconnected to constitute by discharge cock, 2 rectifier bridges, resistance R 1, optical switch, indicator light, buzzers, wherein rectifier bridge, resistance R 1 are connected to incoming line L InAnd N InBetween, optical switch, indicator light, buzzer and 2 rectifier bridges join respectively.
3, claim 1 or 2 described AC power Surge Protectors is characterized in that in the one-level protective unit, at incoming line L InAnd N InBetween be connected with piezo-resistance MOV 1At incoming line L InWith PE InBe connected with piezo-resistance MOV between the line 3At incoming line N InWith PE InBe connected with piezo-resistance MOV between the line 5
4, claim 1 or 2 described AC power Surge Protectors is characterized in that in the secondary protective unit, at output line L OutAnd N OutBetween be connected with piezo-resistance MOV 2At output line L OutWith PE OutBe connected with piezo-resistance MOV between the line 4At output line N OutWith PE OutBe connected with piezo-resistance MOV between the line 6
5, the described AC power Surge Protector of claim 3 is characterized in that also being connected to gas discharge tube GDT in the one-level protective unit, and described gas discharge tube GDT one end is connected in piezo-resistance MOV 3With MOV 5The phase contact, the other end and PE InLink to each other.
CN 200620097324 2006-06-20 2006-06-20 Surge protector of AC power supply Expired - Lifetime CN2914443Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620097324 CN2914443Y (en) 2006-06-20 2006-06-20 Surge protector of AC power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200620097324 CN2914443Y (en) 2006-06-20 2006-06-20 Surge protector of AC power supply

Publications (1)

Publication Number Publication Date
CN2914443Y true CN2914443Y (en) 2007-06-20

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Family Applications (1)

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CN 200620097324 Expired - Lifetime CN2914443Y (en) 2006-06-20 2006-06-20 Surge protector of AC power supply

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CN (1) CN2914443Y (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101510657B (en) * 2008-02-14 2011-06-15 致伸科技股份有限公司 Elongation line device with surge protection means
CN102496920A (en) * 2011-10-17 2012-06-13 航天科工深圳（集团）有限公司 Surge protection device and method for detecting faults by using surge protection device
CN102916418A (en) * 2012-10-25 2013-02-06 深圳市雷博斯科技有限公司 Lightning protection and alarm structure
CN103078307A (en) * 2013-01-27 2013-05-01 黄永捷 Lightning-protected switch-signal indicating rectifier
CN103368157A (en) * 2012-04-06 2013-10-23 上海微电子装备有限公司 Surge protection device
CN105391026A (en) * 2015-12-15 2016-03-09 尤尼特斯（天津）科技有限公司 Overvoltage alarm

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101510657B (en) * 2008-02-14 2011-06-15 致伸科技股份有限公司 Elongation line device with surge protection means
CN102496920A (en) * 2011-10-17 2012-06-13 航天科工深圳（集团）有限公司 Surge protection device and method for detecting faults by using surge protection device
CN102496920B (en) * 2011-10-17 2014-04-23 航天科工深圳（集团）有限公司 Surge protection device and method for detecting faults by using surge protection device
CN103368157A (en) * 2012-04-06 2013-10-23 上海微电子装备有限公司 Surge protection device
CN103368157B (en) * 2012-04-06 2016-01-20 上海微电子装备有限公司 Surge protective device
CN102916418A (en) * 2012-10-25 2013-02-06 深圳市雷博斯科技有限公司 Lightning protection and alarm structure
CN103078307A (en) * 2013-01-27 2013-05-01 黄永捷 Lightning-protected switch-signal indicating rectifier
CN105391026A (en) * 2015-12-15 2016-03-09 尤尼特斯（天津）科技有限公司 Overvoltage alarm

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C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20070620

EXPY Termination of patent right or utility model