CN208571597U - Onboard equipotential is exempted to be grounded surge protector - Google Patents
Onboard equipotential is exempted to be grounded surge protector Download PDFInfo
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- CN208571597U CN208571597U CN201821176432.8U CN201821176432U CN208571597U CN 208571597 U CN208571597 U CN 208571597U CN 201821176432 U CN201821176432 U CN 201821176432U CN 208571597 U CN208571597 U CN 208571597U
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Abstract
Exempt to be grounded surge protector the utility model discloses a kind of onboard equipotential; including an outer box; one built-in power protection circuit unit; one built-in signal line unit and a capping; its signal line unit is equipped with three pieces of indicator lights; respectively grounded signal lamp, lightning protection indicator light and power supply indicator; power protection line unit is equipped with five terminals and is drawn by capping slot; respectively two firewire L inserting terminals, two zero curve N inserting terminals and one and the inserting terminal that connect of protection electrical equipment shell, outer box quadrangle is additionally provided with column.The surge protector of the utility model is able to use in larger current protection, be can be used as stand-alone product and is protected, and is supported series connection and is installed in parallel in circuit, and lightning stroke voltage can be achieved without potential difference in two kinds of connection types；Thunder-strike current shunting shunts, and separates with operating current, and operating voltage is uninterrupted during handling thunder-strike current, it is ensured that equipment normal operation；The advantages that anti-lightning ability is strong, and processing speed is fast, and level of protection is high.
Description
Technical field
The utility model relates to a kind of surge protectors in lightning protection field.
Background technique
Thunder and lightning has very strong destructiveness, mainly has direct lightning strike, lightning induction, mine transmitting device and ground potential to strike back four kinds
Form.Wherein inductive lightning and voltage counterattack are most strong to weak current equipment damage capability.When the thunderstorm of sky generates lightning stroke, will take
Band high load capacity lightening pulse, voltage and current, it is public so as to cause lightning region circumference 1-5 with the random release of electromagnetic wave
In all conducting wires with metal in range, the pulse voltage and electric current of respective strengths are sensed in moment, electric current is set along electric appliance
Standby upper various power circuits or signal cable enter inside electrical equipment, by the voltage of wire and cable institute band on connecting circuit
Height differs, then high voltage will rush at low-voltage area, forms electric current, so that electrical equipment part moment is broken, causes whole
A device systems paralysis, even touches personal safety when serious.China is there are many shocking preventing technology at present, but principle nothing more than
Three kinds: the first, Fuse Type surge protector, that is, traditional rail mounted or common onboard miniaturization (including TMOV) surge
Protector is all made of splitting up method, and surge protector is opened from power interruptions, reached by separating mechanism quick acting when by being struck by lightning
To the effect of protecting equipment.Advantage: connection and installation are simple.Disadvantage: power supply class surge protector is only supported to be installed in parallel, lightning stroke
Time is extremely short (being calculated with nanosecond), also has little time to be fully disconnected sometimes, and lightening pulse electric current has allowed to be met with by protection electrical equipment
To heavy losses.The second, grounding type surge protector is to utilize method of releasing over the ground, principle: thunder-strike current being introduced directly into the earth, is avoided
Electrical equipment is struck by lightning, but is the need for improving effective buried earth mat.Advantage: thunder and lightning can be released completely into ground.It lacks
Point: can construct the place for bringing the release thunder and lightning such as very big inconvenience, especially high mountain or loess undesirable to earth mat, and earth mat is at any time
Between extend and will be corroded.If earth mat ground wire is done badly (requirements of the national standard resistance value≤4 ohm), just it is unable to reach and draws thunder
Enter the effect on ground, thunder and lightning will directly break equipment.Third takes the one of equipotential principle development according to high voltage power transmission and transforming service work
The novel equipotential of kind is exempted to be grounded surge protector.And this product is then exactly stood on the third above-mentioned situation, and IEC mark has both been met
Alignment request also meets pcb board and carries the development trend that miniaturization surge protector protects upper effect promoting in larger current.It is perfect
The comprehensive of power supply over-voltage protection field, deep-going and intelligence meet the increasingly continuous market demand with this.
Utility model content
Exempt to be grounded surge protector the purpose of the utility model is to provide a kind of onboard equipotential, when the electricity of the utility model
When surge protector is by great broken by lightning, it can be automatically repaired internal fault, to extend the service life of product, not employment
Work maintenance.
The technical solution of the utility model is: a kind of onboard equipotential is exempted to be grounded surge protector, it is characterized in that: including one
A outer box, a built-in power protection circuit unit, a built-in signal line unit and a capping, signal line unit
Equipped with three pieces of indicator lights, respectively grounded signal lamp, lightning protection indicator light and power supply indicator, power protection line unit is equipped with five
Terminal is drawn by capping slot, respectively two firewire L inserting terminals, two zero curve N inserting terminals and one and protection
The inserting terminal of electrical equipment shell connection, outer box quadrangle is additionally provided with column.
When series connection, two firewire L inserting terminals are serially connected in by the front end protection electrical equipment firewire L, two zero curve N inserted terminals
Son is serially connected in by the front end protection electrical equipment zero curve N, and inserting terminal is connect with by protection electrical equipment shell.
When in parallel, one of firewire L inserting terminal is connected to by the firewire L of protection electrical equipment front end, one of them
Zero curve N inserting terminal is connected to by the zero curve N of protection electrical equipment front end, and inserting terminal is connect with by protection electric appliance casing.
The surge protector of the utility model is able to use in larger current protection, be can be used as stand-alone product and is protected
Shield is supported series connection and is installed in parallel in circuit, the new protection circuit of composition.
Series connection is fashionable, and inserting terminal 5-1 only need to be connected to firewire input terminal, inserting terminal 6-1 as output end simultaneously
Connection is by protection electric appliance zero line.Identical reason, inserting terminal 5-2 are connected to zero curve input terminal, and inserting terminal 6-2 is as output
It holds and connects by protection electric appliance zero line side.Inserting terminal 8 is connect with by protection electrical equipment shell, when lightning protection device is by especially big thunder
After hitting damage completely, it can automatically cut off the power and block thunder-strike current, it is ensured that electrical equipment is not exposed to broken by lightning.
When parallel connection access, the Project Product parallel connection need to only be accessed by protection electrical equipment front end, i.e., by inserting terminal 5-1
It is connected to firewire, inserting terminal 5-2 is connected on zero curve, and inserting terminal 8 is connect with by protection electric appliance casing.Above two connection
Lightning stroke voltage can be achieved without potential difference in mode；Thunder-strike current shunting shunts, and separates with operating current, handles the thunder-strike current phase
Between operating voltage it is uninterrupted, it is ensured that equipment normal operation；The advantages that anti-lightning ability is strong, and processing speed is fast, and level of protection is high.
Detailed description of the invention
Fig. 1 is the appearance diagram of the utility model.
Fig. 2 is the front view of Fig. 1.
Fig. 3 is capping schematic diagram.
Fig. 4 is that five terminals of power protection line unit draw schematic diagram.
Fig. 5 is built-in power protection circuit element circuit figure.
Fig. 6 is built-in signal line unit circuit diagram.
Fig. 7 is the fashionable electrical schematic diagram of the utility model series connection.
Electrical schematic diagram when Fig. 8 is the utility model parallel connection access.
Specific embodiment
The overall structure of the utility model such as Fig. 1~6, including an outer box 1, a built-in power protection circuit unit,
One built-in signal line unit and a 10 complete explosive-proof protector cover of composition of capping.
As shown in figure 5, power protection line unit uses " equipotential " processing technique so that certain two or more it is right
Voltage between ground reference point is equal；It is connected using Fuse with the MOV (R1, R2, R3, R4, R5) for carrying flow separation warning device
It uses, mutually makes up duplicate protection, overcurrent protection can be realized, and can realize overheat protection, moreover it is possible to reach long-range remote signalling alarm
Function；When lightning-arrest, power supply is not interrupted, and has the function of to diagnose and repair internal fault automatically.
As shown in fig. 6, signal line unit is equipped with three pieces of indicator lights, respectively grounded signal lamp 2,3 and of lightning protection indicator light
Power supply indicator 4.Power protection line unit is equipped with five terminals and is drawn by 10 slots of capping, respectively firewire L inserted terminal
Sub- 5-1 and 6-1, zero curve N inserting terminal 5-2 and 6-2 and the inserting terminal 8 being connect with protection electrical equipment shell.7-1 and 7-2
For location and installation buckle.
The electrical schematic diagram of the utility model such as Fig. 7-8, series connection is fashionable, respectively by inserting terminal 5-1 and 6-1 be serially connected in by
Protect the front end electrical equipment firewire L.Inserting terminal 5-2 and 6-2 are serially connected in by the front end protection electrical equipment zero curve N, inserting terminal 8
It is connect with by protection electrical equipment shell；When parallel connection access, inserting terminal 5-1 is connected to by protection electrical equipment front end firewire
On L, inserting terminal 5-2 is connected to by the zero curve N of protection electrical equipment front end, and inserting terminal 8 is connect with by protection electric appliance casing.
Above two connection type is when network system works normally, grounded signal lamp 2, lightning protection indicator light 3 and 4 points of power supply indicator
Bright, when inserting terminal 8 is with connecting unreliable or not connected by protection electrical equipment shell, grounded signal lamp 2 extinguishes, and needs at this time
It is reliably connected.Meanwhile the piezoresistor on power protection line unit is in high-impedance state, is not influencing circuit just
Often work promotes power protection line unit to act, 3 He of lightning protection indicator light when the deterioration of piezoresistor performance, fever damage
Power supply indicator 4 extinguishes, which can automatically cut off the power and block thunder-strike current, it is ensured that electrical equipment is not exposed to be struck by lightning
Damage, needs to be repaired or replaced at this time.1 four jiaos of this product outer box are additionally provided with column 9, support PCB circuit board wave soldering.
The utility model uses " equipotential " processing technique, and whether lightning protection effect is unrelated with being grounded by protection electrical equipment,
Power supply and signal path lightning protection simultaneously, also have lightning stroke voltage without potential difference；Thunder-strike current shunting shunts, and divides with operating current
It opens, operating voltage is uninterrupted during handling thunder-strike current, it is ensured that equipment normal operation；Anti-lightning ability is strong, and processing speed is fast, protects
The advantages that shield is horizontal high.
It should be understood that the above is only the preferred embodiment of the present invention, it is practical new to be not limited to this
Type, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art,
It can still modify to technical solution documented by previous embodiment, or part of technical characteristic is replaced on an equal basis
It changes.
Within the spirit and principle of the utility model, any modification, equivalent substitution, improvement and etc. done should all wrap
Containing being within the protection scope of the utility model.
Claims (3)
1. a kind of onboard equipotential is exempted to be grounded surge protector, it is characterized in that: including an outer box (1), a built-in power is protected
Line unit, a built-in signal line unit and a capping (10) are protected, signal line unit is equipped with three pieces of indicator lights, point
Not Wei grounded signal lamp (2), lightning protection indicator light (3) and power supply indicator (4), it is logical that power protection line unit is equipped with five terminals
Cross the extraction of capping (10) slot, respectively two firewire L inserting terminals (5-1,6-1), two zero curve N inserting terminals (5-2,6-
2) and one with the inserting terminal (8) that connect of protection electrical equipment shell, outer box (1) quadrangle is additionally provided with column (9).
2. onboard equipotential as described in claim 1 is exempted to be grounded surge protector, it is characterized in that: two firewire L inserting terminals
(5-1,6-1) is serially connected in by the front end protection electrical equipment firewire L, and two zero curve N inserting terminals (5-2,6-2) are serially connected in and are protected
The front end electrical equipment zero curve N, inserting terminal (8) are connect with by protection electrical equipment shell.
3. onboard equipotential as described in claim 1 is exempted to be grounded surge protector, it is characterized in that: one of firewire L grafting
Terminal (5-1) is connected to and is protected by the firewire L of protection electrical equipment front end, one of zero curve N inserting terminal (5-2) is connected to
It protects on the zero curve N of electrical equipment front end, inserting terminal (8) is connect with by protection electric appliance casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821176432.8U CN208571597U (en) | 2018-07-24 | 2018-07-24 | Onboard equipotential is exempted to be grounded surge protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821176432.8U CN208571597U (en) | 2018-07-24 | 2018-07-24 | Onboard equipotential is exempted to be grounded surge protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208571597U true CN208571597U (en) | 2019-03-01 |
Family
ID=65447740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821176432.8U Active CN208571597U (en) | 2018-07-24 | 2018-07-24 | Onboard equipotential is exempted to be grounded surge protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208571597U (en) |
-
2018
- 2018-07-24 CN CN201821176432.8U patent/CN208571597U/en active Active
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