CN106783431A - Surge protector with short circuit current defencive function - Google Patents
Surge protector with short circuit current defencive function Download PDFInfo
- Publication number
- CN106783431A CN106783431A CN201611176133.XA CN201611176133A CN106783431A CN 106783431 A CN106783431 A CN 106783431A CN 201611176133 A CN201611176133 A CN 201611176133A CN 106783431 A CN106783431 A CN 106783431A
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- China
- Prior art keywords
- short circuit
- protection module
- surge
- circuit current
- defencive function
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/10—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess voltage, e.g. for lightning protection
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
- H01H1/54—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/0207—Mounting or assembling the different parts of the circuit breaker
- H01H71/0228—Mounting or assembling the different parts of the circuit breaker having provisions for interchangeable or replaceable parts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
- H01H9/346—Details concerning the arc formation chamber
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- Emergency Protection Circuit Devices (AREA)
Abstract
A kind of surge protector (100) with short-circuit protection function, including surge protection module (102) and short circuit current protection module (101).Surge protection module is released and suppresses surge current and voltage, and surge protection module is inserting module.Short circuit current protection module is integrated in pedestal, and short circuit current protection module is installed for surge protection module provides short-circuit protection with plug.The surge protector overcomes and brings dash current problem by back-up protection using external overcurrent protection; current limiting capacity is strong simultaneously; short circuit breaking capacity is good; minimum instantaneous trip current value is small; it is resistant in temporary overvoltage (TOV) failure pattern, protection can also be played a part of at low currents.
Description
It is on November 12nd, 2012 applying date that the application is, Application No. 201280077275.4 is entitled " to have short circuit electricity
The divisional application of the patent application of the surge protector of stream defencive function ".
Technical field
The present invention relates to the overvoltage protection field of low-voltage distribution system, more specifically to one kind there is short circuit to protect
The voltage-limiting surge protector of protective function.
Background technology
Due to factors such as impact, power-frequency voltage fluctuation and variation of ambient temperature, for element (the pressure-sensitive electricity of voltage-limit type SPD
Resistance) inherently produce deterioration or short-circuit failure, cause heat, short circuit or electric shock etc. failure to the people of surrounding, thing or system
Itself constitutes a threat to.Therefore, voltage-limit type SPD must be deteriorated and short-circuit protection to it, i.e., (heat is protected must to configure anti-thermal runaway
Shield), the disconnector of anti-short-circuit failure (short-circuit protection).There is deterioration or during short-circuit failure when voltage-limit type SPD, disconnector can be by
SPD is opened from system break, in case locking system sustained fault, it is to avoid the generation of fire.
In existing voltage-limit type SPD failure protection techniques, the disconnector for anti-thermal runaway generally uses overcurrent protection
Element is used as external device (ED).Over-current protecting element is generally breaker, fuse, RCD.Because these external device (ED)s are with work
Designed based on frequency characteristic, the surging technology performance indications not matched, when selecting, it is impossible to ensure at this two aspect
Performance realizes that characteristic matches.It is possible that external short-circuit protection cannot bear the electricity matched with voltage-limit type SPD
Gush impact；Phenomenon cannot be clearly waited for the overall residual voltage Up values after over-current protecting element and SPD combinations, these problems will
Reduce the security and protecting effect in voltage-limit type SPD use.
Application No. CN200810039516.1, the patent application of entitled " having the surge protector of back-up protection " is disclosed
A kind of surge protector with back-up protection, is integrated with short-circuit protection and surge protector integrated design concept,
And existing voltage-limit type SPD is overcome using external short-circuit protection device by residual voltage that back-up protection brings problem high.
But this application patent still has very big defect, such as：1st, discharge capacity is small；2nd, short circuit breaking capacity is low；3、
There is no the protection of the small multiple overload of short circuit current, guard interval is small；4th, short-circuit protection protection reliability is not high；5th, do not examine
Consider the protection problem that the temporary overvoltage that the brought system failure causes is impacted in Large Copacity surge；6th, product overall volume
Greatly.
The content of the invention
The present invention is directed to propose a kind of voltage-limiting surge protector with short-circuit protection function.
An embodiment of the invention, discloses a kind of integrated surge protection with short circuit current defencive function
Device, including surge protection module and short circuit current protection module.Surge protection module is released and suppresses surge current and voltage, electricity
Protection module is gushed for inserting module.The integrated short-circuit protection function of short circuit current protection module and plug pedestal integrated design,
Short circuit current protection module is renewable type, is installed with plug for surge protection module provides short-circuit protection.
In one embodiment, short circuit current protection module includes：Base and lid, moving contact and static contact, Lei Min switches,
Electromagnetic mechanism, elastic lug plate, dividing plate, the first binding post, the second binding post, the first resilient prongs and the second elasticity are inserted
Pin.Cover the shell that short circuit current protection module is formed on base.Static contact includes stationary contact bracket.Lei Min switch connections are quiet
Contact and elastic lug plate.Electromagnetic mechanism includes iron yoke and coil.Elastic lug plate has Spring pins, upper-end bent extension
Divide and lower end extension point.Dividing plate is arranged on base, and dividing plate forms self-extinguishment shape arc-chutes with base.First binding post is connected
Outside phase line, the outside phase line of the second binding post connection or ground wire.First resilient prongs and the second resilient prongs grafting surge are protected
Shield module, the first resilient prongs connect the first binding post, and the second resilient prongs connect the second binding post.
In one embodiment, it is quiet for the electric current for ensureing to flow through moving contact rack and stationary contact bracket is equidirectional
Contact supporting is U-shaped rotary support.
In one embodiment, it is the requirement of guarantee current limiting capacity high, the high value coil using impedance more than 200m Ω
Carry out current limliting.Lei Min is switched and is connected to stationary contact bracket with this high value coils from parallel connection of coils, the first end of Lei Min switches.
In one embodiment, the second end of Lei Min switches is connected with each other with the Spring pins of elastic lug plate, elastic connecting
Line piece provides elastic pressure and compresses the quick switch of thunder.The upper end extension of stationary contact bracket is welded in iron with the first end of coil
The extension of yoke.The upper-end bent extension of elastic lug plate is welded to each other with the second end of coil and is connected, elastic wiring
The lower end extension of piece point is connected with each other by lug plate and the first pin.
In one embodiment, dividing plate is provided with the grid of trapezoidal shape.
In one embodiment, moving contact is that silver tungsten material, static contact are silver-colored tungsten carbide alloy material.
In one embodiment, Lei Min switches are ceramic gas discharge tube, and nominal DC breakdown voltage is more than 250V.
In one embodiment, short circuit current protection module also includes what handle, operating mechanism, clamp and selectivity were installed
Remote alarming device.
In one embodiment, surge protection module has the first inserted sheet and the second inserted sheet, the first inserted sheet and the second inserted sheet
With the first resilient prongs and the second resilient prongs grafting.
In one embodiment, product overall width is 27mm or 36mm, the width of surge protection module for 9mm or
18mm；Surge protection module is provided with the fin of different height in both sides, and the corresponding surface of short circuit current protection module is provided with mutually
The groove of respective heights, prevents from mispluging and pulls out.
Surge protector with short circuit current defencive function of the invention has following advantage：
1) cooperation between lightning impulse current and power frequency short circuit current is solved, while carrying out current limliting high to bulk loop
The requirement of ability, it is preferred to use the high value coil of the big resistance of positive temperature coefficient, such as impedance more than 200m Ω.Current limiting capacity
By force, that is to say, that the protective capability of short circuit current is high, short circuit breaking capacity is good；
2) small multiple overload current is protected, the protection of low short circuit current is minimum to reach 10A, expands short-circuit protection model
Enclose, be applicable to any earthed system；
3) the TOV resistance patterns of renewable type are proposed first, eliminate the flame under traditional TOV failures and resistance patterns,
Disaster hidden-trouble is prevented, security reliability is very high；
4) principle for making contact denounce out in advance using electrodynamic repulsion force is changed, will not when Large Copacity lightning impulse current impacts
Generation misoperation situation, it is possible to increase the service life of contact；
5) residual voltage Up is controllable, and power current and surge current binary channels rapid translating sensitivity and reliability are high.Frequently quick electricity
Circulation Switching not only allows for system overvoltage, has also taken into account switching overvoltage, it is therefore prevented that the misoperation of Lei Min switches, it is ensured that
The stability and short-circuit breaking capacity of product；
6) matched using the contact material of resistance to ablation, ablation resistance and anti-electrical wear ability are high, the impact of Large Copacity lightning current
The excursion of lower contact pressure is small；
7) connected mode that Lei Min switches are contacted using elastic component, it is ensured that integrity during Lei Min switch assemblings, is easy to dress
Match somebody with somebody；
8) cooperation of the attracting big resistance current limliting with positive temperature coefficient of same direction current reduces arc extinguishing requirement between contact, increases
Bleed passage accelerates gas quickly to exclude, and merely with gas blast arc-quenching, small product size is more minimized.
Brief description of the drawings
The above and other features of the present invention, property and advantage are by by retouching with reference to the accompanying drawings and examples
State and become readily apparent from, in the accompanying drawings, identical reference represents identical feature all the time, wherein：
Fig. 1 discloses the entirety of the surge protector with short circuit current defencive function of an embodiment of the invention
Structure chart.
Fig. 2 discloses the electricity in the surge protector with short circuit current defencive function of an embodiment of the invention
Gush the structure chart of protection module.
Fig. 3 discloses the electricity in the surge protector with short circuit current defencive function of an embodiment of the invention
Gush the structure chart of protection module and pedestal grafting.
Fig. 4 discloses short in the surge protector with short circuit current defencive function of an embodiment of the invention
The cut-away view of road overcurrent protection module.
Fig. 5 discloses short in the surge protector with short circuit current defencive function of an embodiment of the invention
The structure chart of the dividing plate of road overcurrent protection module.
Fig. 6 discloses short in the surge protector with short circuit current defencive function of an embodiment of the invention
The structure chart of the self-extinguishment shape arc-chutes of road overcurrent protection module.
Specific embodiment
The present invention is directed to propose a kind of surge protector with short circuit current defencive function, including surge protection module and
Short circuit current protection module.Surge protection module is released and suppresses surge current and voltage, and surge protection module is plug-in mould
Block.Short circuit current protection module is integrated in pedestal, short circuit current protection module for surge protection module provide short-circuit protection with
Plug is installed.
Short circuit current protection module includes：Base and lid, moving contact and static contact, Lei Min switches, electromagnetic mechanism, elastic connecting
Line piece, dividing plate, the first binding post, the second binding post, the first resilient prongs and the second resilient prongs.Cover the shape on base
Into the shell of pedestal.Static contact includes stationary contact bracket, and stationary contact bracket is U-shaped rotary support.Electromagnetic mechanism include iron yoke and
Coil, coil is connected to high resistance measurement of the impedance more than 200m Ω, with very strong current limiting capacity.Lei Min switch connection stationary contacts
Head and elastic lug plate.Lei Min is switched and coils from parallel connection of coils, and the first end of Lei Min switches is connected to stationary contact bracket.Lei Min switches
Second end is connected with each other with the Spring pins of elastic lug plate, and elastic lug plate provides elastic pressure and compresses the quick switch of thunder.It is quiet
The upper end extension of contact supporting is welded in the extension of iron yoke with the first end of coil.The upper-end bent of elastic lug plate
Extension is welded to each other with the second end of coil and is connected, and the lower end extension point of elastic lug plate is inserted by lug plate and first
Pin piece is connected with each other.Elastic lug plate has Spring pins, upper-end bent extension and lower end extension point.Dividing plate is arranged on
On base, dividing plate is provided with the grid of trapezoidal shape, and dividing plate forms self-extinguishment shape arc-chutes with base.The connection of first binding post is outside
Phase line, the outside phase line of the second binding post connection or ground wire.First resilient prongs and the second resilient prongs grafting surge protection mould
Block, the first resilient prongs connect the first binding post, and the second resilient prongs connect the second binding post.
Moving contact is silver tungsten material, static contact is silver-colored tungsten carbide alloy material.Lei Min switches are ceramic gas discharge
Pipe, nominal DC breakdown voltage is more than 250V.Short circuit current protection module also includes handle, operating mechanism, clamp and selectivity
The remote alarming device of installation.
Surge protection module has the first inserted sheet and the second inserted sheet, the first inserted sheet and the second inserted sheet and the first resilient prongs and
Second resilient prongs grafting.Product overall width is 27mm or 36mm, and the width of surge protection module is 9mm or 18mm；Surge
Protection module is provided with fin in both sides, and the corresponding surface of short circuit current protection module is provided with corresponding groove.
Surge protector with short circuit current defencive function of the invention has following several features：
1) means for increasing current limliting using the big resistance of positive temperature coefficient carry out short circuit current protection, are more than from impedance
The high impedance magnet coil of 200m Ω, product short circuit breaking capacity is high, while being conducive to electromagnetic mechanism under low fault current
Action, and minimum instantaneous trip current value is small, and product short-circuit protection scope is big, is applicable to any earthed system；
2) the TOV resistance patterns of renewable type, do not have Mars and flame phenomenon；
3) with the close support current of the dynamic/static contact principle so as to reduce electrodynamic repulsion force in the same direction, design uses static contact branch
Frame, is U-shaped rotary type structure so that moving contact with install static contact U-shaped rotary type structure stand side electrodynamic
Under effect, with the active force for attracting each other, when lightning impulse current impacts, the reaction time that moving contact reprimand is opened is delayed,
In the presence of having attracted, the impulsive force that reprimand is subject to when opening reduces moving contact simultaneously, thus will not cause operating mechanism tripping because
Impact and produce misoperation, the design that reprimand is opened only is acted on by electromagnetic mechanism with reference to the current limliting and contact of high impedance, operate machine
The stability of structure is very good；
4) the quick switch of thunder in frequency quick electric current conversion switch is before being connected in parallel on magnet coil in the connection of electricity, that is,
It is to first pass through Lei Min switches to release when saying that lightning impulse current passes through, later electric current of then releasing again passes through magnet coil, drop
The surge energy that low magnet coil is carried, improves the surge ability to bear of short circuit current protection module；
5) arc-chutes of self-extinguishment shape are formd by being assemblied in interiors of products, replaces original manifold type arc-chutes, product
Volume is more minimized.So-called self-extinguishment shape arc-chutes, are grid of the design with trapezoidal shape on product parts, by product
Assembling, an arc-chutes for half-sealed are formed in dynamic/static contact opening and closing place, and dynamic/static contact to be completely enclosed in this half close
In the middle of the arc-chutes of envelope formula.Because the current limliting of big resistance, when moving contact reprimand is opened so that product is produced in the case of failure high current
Less, the very first time carries out arc extinguishing to raw arc current by air-blowing；
6) moving contact is that silver tungsten material, static contact are silver-colored tungsten carbide alloy material；
7) the nominal DC breakdown voltage of Lei Min switches is more than 250V；
8) surge protection module has anti-error plug function.
Fig. 1~Fig. 6 discloses the surge protector with short circuit current defencive function of an embodiment of the invention
Structure chart.As shown in Fig. 1~Fig. 6：The surge protector 100 with short-circuit protection function aims to solve the problem that existing surge protection
The problem brought by back-up protection using external over-current protection device during device application.This has short circuit current defencive function
Surge protector 100 includes short circuit current protection module 101 and surge protection module 102, and the short circuit current protection module 101 stated is used
In protection surge protection module 102, surge protection module 102 is releasing and suppress, short circuit electricity for surge current and voltage
Stream protection module 101 is integrated with the pedestal of installation surge protection module 102, and surge protection module 102 is plug type
's.
Short circuit current protection module 101 include base 103, lid 105, moving contact 106, static contact 107, Lei Min switch 108,
Electromagnetic mechanism 109, handle 110, operating mechanism 111, elastic lug plate 112, dividing plate 113, clamp 114, the first binding post
115th, the second binding post 116, the first resilient prongs 117 and the second resilient prongs 118 and can selectively install it is long-range
Warning device 104.
Lid 105 covers and pedestal is formed on base 103, i.e. the shell of surge protection module 102.Static contact 107 includes stationary contact
Head bracket 107a, stationary contact bracket 107a are using the U-shaped rotary support of U-shaped rotary type structure, to ensure to flow through static contact 107
Flow direction with the electric current of moving contact 106 is consistent, so that moving contact 106 and the U-shaped rotary support for installing static contact
Side near moving contact in the presence of electric power, with the active force for attracting each other, it is ensured that in the impact of high current capacity
Under, the reaction time that moving contact reprimand is opened is delayed, and impulsive force of the moving contact when reprimand is opened is small, will not cause operating mechanism
The misoperation of 111 trippings.
Electromagnetic mechanism 109 includes that iron yoke 109a and coil 109b, coil 109b include high resistance measurement, high resistance measurement pair
Coil 109b carries out current limliting, and the impedance of high resistance measurement is more than 300m Ω.The number of turn of coil 109b is more than 100 circles, so favourable
In action of the electromagnetic mechanism under low fault current, while ensureing that short circuit current protection module has high breaking capacity.
Lei Min switches 108 are relation in parallel, further, thunder in the connection of electricity with the coil 109b of electromagnetic mechanism 109
The first end of quick switch 108 is connected with each other with the stationary contact bracket 107a of the U-shaped rotary type of static contact 107, Lei Min switches 108
Second end is connected with each other with the Spring pins of elastic lug plate 112, and elastic pressure is provided by the quick switch of thunder by elastic lug plate 112
108 compress.Elastic lug plate 112 is with Spring pins, upper-end bent extension and lower end extension point.Static contact is installed
The upper end extension of the stationary contact bracket 107a of 107 U-shaped rotary type is welded in iron yoke together with the first end of coil 109b
The extension of 109a.The upper-end bent extension of elastic lug plate 112 is welded to each other with second end of coil 109b and is connected.
The lower end extension of elastic lug plate 112 point is connected with each other by lug plate 119 with the first pin 117.Such connecting-type
Formula, it is ensured that on electricity the quick switch in parallel of thunder before electromagnetic mechanism coil, in particular, when surge current is invaded,
When the energy of surge passes through stationary contact bracket, released by the quick switch of thunder first, the electric current after then releasing just passes through
Magnet coil, so greatly reduces the surge energy that big resistance coil is carried, and improves the electricity of short circuit current protection module
Gush ability to bear.
Base 103 forms an arc-chutes for self-extinguishment shape 120 with the interiors of products that is assemblied in of dividing plate 113.Specifically,
The grid of trapezoidal shape is provided with dividing plate 113, by the close fit of both base 103 and dividing plate 113, in dynamic/static contact folding
Place forms an arc-chutes for half-sealed 120, and dynamic/static contact is completely enclosed in the middle of this arc-chutes.When moving contact reprimand
When opening generation electric arc, electric arc is moved downward under electrodynamic action along the side of the support of U-shaped revolving structure, very first time electricity
Arc is directly cut by trapezoidal grid, reaches the effect for extinguishing electric arc.
Short circuit current protection module 101 is integrated in the pedestal for install surge protection module 102, is connect for connecting outside
First and second binding posts of line are respectively positioned in short circuit current protection module, and first in short circuit current protection module connects
Line terminals 115 are that, for being connected with outside phase line, and the second binding post 116 is for being connected with outside phase line or ground wire.It is short
The first binding post 115 in the overcurrent protection module of road is the connection and installation surge protection module by a series of internal electricity
The first pin 117 be connected, and the second binding post 116 is connected with each other with the second pin 118 for installing surge protection module, guarantor
Card short circuit current protection module provides back-up protection to described surge protection module.
Surge protection module 102 is designed as plug type structure, changes simple, fast.Surge protection module 102 is logical
Corresponding first pin 117 and second crossed in its 122 and second inserted sheet of the first inserted sheet 123 insertion short circuit current protection module is inserted
Realize what is be connected with each other in pin 118.Surge protection module is provided with different height fin 121 in its both sides, and in short circuit current
Protection module installs the groove that corresponding surface is provided with correspondence different height, it is ensured that surge protection module installs reliable, will not carry out
Misplug and pull out operation.
Surge protection module 102 is designed as width for 9mm or 18mm, meets International Design convention, and module installs compatibility
It is stronger.
Moving contact 106 is silver tungsten material, static contact 107b is silver-colored tungsten carbide alloy material, can very advantageously be subtracted
Corrode of the slow surge energy to dynamic and static contact, it is ensured that by after the impact of multiple high current capacity, short circuit current protection module is still
So effectively, service life is substantially increased.
Lei Min switches 108 are switch element, it is preferred to use inflatable discharge tube, such as ceramic gas discharge tube, nominal DC
Breakdown voltage is more than 250V.
Surge protector with short circuit current defencive function of the invention has following advantage：
1) cooperation between lightning impulse current and power frequency short circuit current is solved, while carrying out current limliting high to bulk loop
The requirement of ability, it is preferred to use the high value coil of the big resistance of positive temperature coefficient, such as impedance more than 200m Ω.Current limiting capacity
By force, that is to say, that the protective capability of short circuit current is high, short circuit breaking capacity is good；
2) small multiple overload current is protected, the protection of low short circuit current is minimum to reach 10A, expands short-circuit protection model
Enclose, be applicable to any earthed system；
3) the TOV resistance patterns of renewable type are proposed first, eliminate the flame under traditional TOV failures and resistance patterns,
Disaster hidden-trouble is prevented, security reliability is very high；
4) principle for making contact denounce out in advance using electrodynamic repulsion force is changed, will not when Large Copacity lightning impulse current impacts
Generation misoperation situation, it is possible to increase the service life of contact；
5) residual voltage Up is controllable, and power current and surge current binary channels rapid translating sensitivity and reliability are high.Frequently quick electricity
Circulation Switching not only allows for system overvoltage, has also taken into account switching overvoltage, it is therefore prevented that the misoperation of Lei Min switches, it is ensured that
The stability and short-circuit breaking capacity of product；
6) matched using the contact material of resistance to ablation, ablation resistance and anti-electrical wear ability are high, the impact of Large Copacity lightning current
The excursion of lower contact pressure is small；
7) connected mode that Lei Min switches are contacted using elastic component, it is ensured that integrity during Lei Min switch assemblings, is easy to dress
Match somebody with somebody；
8) cooperation of the attracting big resistance current limliting with positive temperature coefficient of same direction current reduces arc extinguishing requirement between contact, increases
Bleed passage accelerates gas quickly to exclude, and merely with gas blast arc-quenching, small product size is more minimized.
Above-described embodiment is available to be familiar with person in the art and realizes or using of the invention, be familiar with this area
Personnel can make various modifications or change without deviating from invention thought of the invention, thus protection of the invention to above-described embodiment
Scope is not limited by above-described embodiment, and should be the maximum magnitude for meeting the inventive features that claims are mentioned.
Claims (10)
1. a kind of surge protector with short circuit current defencive function, it is characterised in that including：
Surge protection module, surge protection module is released and suppresses surge current and voltage, and surge protection module is plug-in mould
Block；
Short circuit current protection module, is integrated in pedestal, and short circuit current protection module provides short circuit for the surge protection module
Protection is installed with plug, and the short circuit current protection module includes：
Moving contact and static contact, static contact include stationary contact bracket, and the stationary contact bracket is U-shaped rotary support, static contact and
Moving contact current direction is consistent；
Electromagnetic mechanism, electromagnetic mechanism includes iron yoke and coil；
Lei Min is switched, and Lei Min switches connect static contact and elastic lug plate, Lei Min switches and coils from parallel connection of coils, the first of Lei Min switches
End is connected to stationary contact bracket.
2. there is the surge protector of short circuit current defencive function as claimed in claim 1, it is characterised in that the short circuit electricity
Stream protection module also includes：
Base and lid, cover the shell that pedestal is formed on base；
Elastic lug plate, elastic lug plate has Spring pins, upper-end bent extension and lower end extension point；
Dividing plate, dividing plate is arranged on base, and dividing plate forms self-extinguishment shape arc-chutes with base；
First binding post, the outside phase line of the first binding post connection；
Second binding post, the outside phase line of the second binding post connection or ground wire；
First resilient prongs and the second resilient prongs, the first resilient prongs and the second resilient prongs grafting surge protection module, the
One resilient prongs connect the first binding post, and the second resilient prongs connect the second binding post.
3. there is the surge protector of short circuit current defencive function as claimed in claim 2, it is characterised in that
The magnet coil is connected to high resistance measurement of the impedance more than 500m Ω.
4. there is the surge protector of short circuit current defencive function as claimed in claim 3, it is characterised in that
Second end of Lei Min switches is connected with each other with the Spring pins of elastic lug plate, and elastic lug plate provides elastic pressure by thunder
Quick switch is compressed；
The upper end extension of stationary contact bracket is welded in the extension of iron yoke with the first end of coil；
The upper-end bent extension of elastic lug plate is welded to each other with the second end of coil and is connected, and the lower end of elastic lug plate is prolonged
Extending portion point is connected with each other by lug plate and the first pin.
5. there is the surge protector of short circuit current defencive function as claimed in claim 2, it is characterised in that on the dividing plate
It is provided with the grid of trapezoidal shape.
6. there is the surge protector of short circuit current defencive function as claimed in claim 1, it is characterised in that
Described moving contact is silver tungsten material；
Described static contact is silver-colored tungsten carbide alloy material.
7. there is the surge protector of short circuit current defencive function as claimed in claim 2, it is characterised in that
The quick switch of thunder is ceramic gas discharge tube, and discharge voltage is more than 250V.
8. there is the surge protector of short circuit current defencive function as claimed in claim 2, it is characterised in that the short circuit electricity
Stream protection module also includes the remote alarming device that handle, operating mechanism, clamp and selectivity are installed.
9. there is the surge protector of short circuit current defencive function as claimed in claim 2, it is characterised in that the surge is protected
Shield module has the first inserted sheet and the second inserted sheet, and the first inserted sheet and the second inserted sheet are slotting with the first resilient prongs and the second resilient prongs
Connect.
10. there is the surge protector of short circuit current defencive function as claimed in claim 1, it is characterised in that
The width of surge protection module is 9mm or 18mm；
Surge protection module is provided with different height fin in both sides, and the corresponding surface of short circuit current protection module is provided with corresponding tool
There is the groove of respective heights.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611176133.XA CN106783431B (en) | 2012-11-12 | 2012-11-12 | Surge protector with short circuit current defencive function |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611176133.XA CN106783431B (en) | 2012-11-12 | 2012-11-12 | Surge protector with short circuit current defencive function |
| PCT/CN2012/084450 WO2014071628A1 (en) | 2012-11-12 | 2012-11-12 | Surge protection device having short-circuit current protection function |
| CN201280077275.4A CN104813432B (en) | 2012-11-12 | 2012-11-12 | Surge protection device having short-circuit current protection function |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280077275.4A Division CN104813432B (en) | 2012-11-12 | 2012-11-12 | Surge protection device having short-circuit current protection function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106783431A true CN106783431A (en) | 2017-05-31 |
| CN106783431B CN106783431B (en) | 2018-09-07 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611176133.XA Active CN106783431B (en) | 2012-11-12 | 2012-11-12 | Surge protector with short circuit current defencive function |
| CN201280077275.4A Active CN104813432B (en) | 2012-11-12 | 2012-11-12 | Surge protection device having short-circuit current protection function |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280077275.4A Active CN104813432B (en) | 2012-11-12 | 2012-11-12 | Surge protection device having short-circuit current protection function |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2919254B1 (en) |
| CN (2) | CN106783431B (en) |
| CY (1) | CY1123104T1 (en) |
| ES (1) | ES2791039T3 (en) |
| WO (1) | WO2014071628A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107833813A (en) * | 2017-12-11 | 2018-03-23 | 宏秀电气有限公司 | A kind of Anti-surging breaker |
| CN108807020A (en) * | 2018-05-29 | 2018-11-13 | 德力西电气有限公司 | A kind of contact system of breaker of plastic casing |
| CN115223826A (en) * | 2022-09-20 | 2022-10-21 | 国网山东省电力公司桓台县供电公司 | Alarm device capable of identifying fault at fixed point due to voltage fluctuation |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104078227B (en) * | 2014-06-11 | 2016-05-18 | 安徽三和电力技术有限公司 | For the fixture of Current Transformer Secondary overvoltage protection device |
| AU2017268478B2 (en) | 2016-05-20 | 2021-10-21 | Erico International Corporation | Distribution block with integrated surge protective device |
| CN106329507B (en) * | 2016-10-15 | 2018-08-24 | 浙江雷源电气有限公司 | A kind of SCB back-up protections device and its control method |
| CN110323730B (en) * | 2019-06-05 | 2024-04-23 | 杭州国民电气有限公司 | Surge protector |
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| WO2007077180A1 (en) * | 2006-01-05 | 2007-07-12 | Dehn + Söhne Gmbh + Co. Kg | Pluggable surge arrester comprising one or several surge protection elements |
| CN101320658A (en) * | 2008-06-25 | 2008-12-10 | 上海电器科学研究所（集团）有限公司 | Surge protector with backup protection |
| US20090213518A1 (en) * | 2008-02-27 | 2009-08-27 | Schneider Electric Industries Sas | Voltage surge protection device comprising selective disconnection means |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004018275B4 (en) * | 2004-04-15 | 2007-10-18 | Siemens Ag | switchgear |
| CN101170257B (en) * | 2007-11-30 | 2010-08-11 | 上海电科电器科技有限公司 | Backup protection unit for surge protector |
| US8164018B2 (en) * | 2009-03-23 | 2012-04-24 | Siemens Industry, Inc. | Circuit breaker arc chambers and methods for operating same |
| CN201528189U (en) * | 2009-06-17 | 2010-07-14 | 孙巍巍 | Novel backup protection device of surge protector |
| CN201466676U (en) * | 2009-07-09 | 2010-05-12 | 菲尼克斯电气(南京)研发工程中心有限公司 | Secondary grounding protector of electric power voltage transformer |
-
2012
- 2012-11-12 CN CN201611176133.XA patent/CN106783431B/en active Active
- 2012-11-12 ES ES12887906T patent/ES2791039T3/en active Active
- 2012-11-12 EP EP12887906.1A patent/EP2919254B1/en active Active
- 2012-11-12 WO PCT/CN2012/084450 patent/WO2014071628A1/en active Application Filing
- 2012-11-12 CN CN201280077275.4A patent/CN104813432B/en active Active
-
2020
- 2020-05-20 CY CY20201100461T patent/CY1123104T1/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007077180A1 (en) * | 2006-01-05 | 2007-07-12 | Dehn + Söhne Gmbh + Co. Kg | Pluggable surge arrester comprising one or several surge protection elements |
| US20090213518A1 (en) * | 2008-02-27 | 2009-08-27 | Schneider Electric Industries Sas | Voltage surge protection device comprising selective disconnection means |
| US8009401B2 (en) * | 2008-02-27 | 2011-08-30 | Schneider Electric Industries Sas | Voltage surge protection device comprising selective disconnection means |
| CN101320658A (en) * | 2008-06-25 | 2008-12-10 | 上海电器科学研究所（集团）有限公司 | Surge protector with backup protection |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107833813A (en) * | 2017-12-11 | 2018-03-23 | 宏秀电气有限公司 | A kind of Anti-surging breaker |
| CN108807020A (en) * | 2018-05-29 | 2018-11-13 | 德力西电气有限公司 | A kind of contact system of breaker of plastic casing |
| CN115223826A (en) * | 2022-09-20 | 2022-10-21 | 国网山东省电力公司桓台县供电公司 | Alarm device capable of identifying fault at fixed point due to voltage fluctuation |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014071628A1 (en) | 2014-05-15 |
| CN106783431B (en) | 2018-09-07 |
| CN104813432A (en) | 2015-07-29 |
| CY1123104T1 (en) | 2021-10-29 |
| ES2791039T3 (en) | 2020-10-30 |
| EP2919254A1 (en) | 2015-09-16 |
| EP2919254B1 (en) | 2020-02-26 |
| EP2919254A4 (en) | 2016-08-10 |
| CN104813432B (en) | 2017-02-22 |
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