CN106783431B - Surge protector with short circuit current defencive function - Google Patents
Surge protector with short circuit current defencive function Download PDFInfo
- Publication number
- CN106783431B CN106783431B CN201611176133.XA CN201611176133A CN106783431B CN 106783431 B CN106783431 B CN 106783431B CN 201611176133 A CN201611176133 A CN 201611176133A CN 106783431 B CN106783431 B CN 106783431B
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- 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
Abstract
A kind of surge protector (100) with short-circuit protection function, including surge protection module (102) and short circuit current protection module (101).It is inserting module that surge protection module, which releases and inhibits surge current and voltage, surge protection module,.Short circuit current protection module is integrated in pedestal, and short circuit current protection module provides short-circuit protection for surge protection module and installed with plug.The surge protector overcomes brings dash current problem using external overcurrent protection by back-up 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 the role of at low currents.
Description
It is on November 12nd, 2012 that the application, which is the applying date, entitled " to have short circuit electricity application No. is 201280077275.4
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 fields 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) deterioration or short-circuit failure must be will produce, cause heat, the failures such as short-circuit or electric shock to the people of surrounding, object or system
Itself constitutes a threat to.Therefore, voltage-limit type SPD must carry out it deterioration and short-circuit protection, i.e., must configuring anti-thermal runaway, (heat is protected
Shield), the disconnector of anti-short-circuit failure (short-circuit protection).When deterioration or short-circuit failure occur for voltage-limit type SPD, disconnector can incite somebody to action
SPD is opened from system break, to prevent locking system sustained fault, avoids the generation of fire.
In existing voltage-limit type SPD failure protection techniques, for the disconnector generally use overcurrent protection of anti-thermal runaway
Element is as external device (ED).Over-current protecting element is generally breaker, fuse, RCD.Since these external device (ED)s are with work
It designs based on frequency characteristic, the surging technology performance indicator not matched, when selecting, can not ensure at this two aspect
Performance realizes that characteristic matches.It is possible that external short-circuit protection can not bear the electricity to match with voltage-limit type SPD
Gush impact；Phenomena such as can not being specified for the whole residual voltage Up values after over-current protecting element and SPD combinations, these problems will
Reduce the safety in voltage-limit type SPD use and protecting effect.
Application No. is CN200810039516.1, the patent application of entitled " surge protector with back-up protection " discloses
A kind of surge protector with back-up protection, is integrated with short-circuit protection and surge protector integrated design concept,
And it is the high problem of residual voltage caused by back-up protection to overcome existing voltage-limit type SPD using external short-circuit protection device.
But this application patent still has prodigious defect, such as：1, discharge capacity is small；2, short circuit breaking capacity is low；3、
There is no the protection of the small multiple overload of short circuit current, guard interval small；4, short-circuit protection protection reliability is not high；5, it does not examine
Consider the protection problem of temporary overvoltage caused by the system failure caused by being impacted in large capacity surge；6, product overall volume
Greatly.
Invention content
The present invention is directed to propose a kind of voltage-limiting surge protector with short-circuit protection function.
An embodiment according to the present 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 releases and inhibits surge current and voltage, electricity
It is inserting module to gush protection module.Short circuit current protection module integrates short-circuit protection function and plug pedestal integrated design,
Short circuit current protection module is renewable type, and provide short-circuit protection for surge protection module installs with plug.
In one embodiment, short circuit current protection module includes：Pedestal and lid, moving contact and static contact, Lei Min switch,
Electromagnetic mechanism, elastic lug plate, partition board, the first connecting terminal, the second connecting terminal, the first resilient prongs and the second elasticity are inserted
Foot.Cover the shell that short circuit current protection module is formed on pedestal.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 divides.Partition board is mounted on the base, and partition board forms self-extinguishment shape arc-chutes with pedestal.First connecting terminal connects
External phase line, the external phase line of the second connecting terminal connection or ground wire.First resilient prongs and the second resilient prongs grafting surge are protected
Module is protected, the first resilient prongs connect the first connecting terminal, and the second resilient prongs connect the second connecting terminal.
In one embodiment, quiet to ensure that it is the same direction to flow through the electric current of moving contact rack and stationary contact bracket
Contact supporting is U-shaped rotary support.
In one embodiment, to ensure the requirement of high current limiting capacity, the high value coil of 200m Ω is more than using impedance
Carry out current limliting.Lei Min is switched 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 and the Spring pins of elastic lug plate are connected with each other, elastic connecting
Line piece provides elastic pressure and compresses the quick switch of thunder.The upper end extension of stationary contact bracket and the first end of coil are welded in iron
The extension of yoke.The upper-end bent extension of elastic lug plate and the second end of coil are welded to each other connection, elastic wiring
The lower end extension of piece point is connected with each other by lug plate and the first pin.
In one embodiment, partition board is equipped with the grid of trapezoidal shape.
In one embodiment, moving contact is silver tungsten material, static contact is 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 further includes handle, operating mechanism, snap-gauge and selectively installs
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 be 9mm or
18mm；Surge protection module is equipped with the fin of different height in both sides, and the corresponding surface of short circuit current protection module is equipped with mutually
The groove of respective heights is prevented from mispluging and be pulled out.
The surge protector with short circuit current defencive function of the present invention is with following advantage：
1) it solves the cooperation between lightning impulse current and power frequency short circuit current, while high current limliting is carried out to bulk loop
The requirement of ability, it is preferred to use the big resistance of positive temperature coefficient, as impedance is more than the high value coil of 200m Ω.Current limiting capacity
By force, that is to say, that the protective capability of short circuit current is high, and short circuit breaking capacity is good；
2) small multiple overload current is protected, the protection minimum of low short circuit current reaches 10A, expands short-circuit protection model
It encloses, is applicable to any earthed system；
3) the TOV resistance patterns of renewable type are put forward for the first time, the flame under traditional TOV failures and resistance patterns is eliminated,
Fire hazard is prevented, security reliability is very high；
4) change makes the principle that contact is denounceed out in advance using electrodynamic repulsion force, will not when large capacity lightning impulse current impacts
Malfunction situation occurs, the service life of contact can be improved；
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 malfunction of Lei Min switches, it is ensured that
The stability and short-circuit breaking capacity of product；
6) it is matched using the contact material of resistance to ablation, ablation resistance and anti-electrical wear ability are high, the impact of large capacity lightning current
The variation range of lower contact pressure is small；
7) Lei Min switchs the connection type using elastic component contact, ensures integrity when the quick switch of thunder assembles, convenient for dress
Match；
8) the attracting cooperation with the big resistance current limliting of 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 more minimizes.
Description of the drawings
The above and other features of the present invention, property and advantage will pass through retouching with reference to the accompanying drawings and examples
It states and becomes readily apparent from, in the accompanying drawings, identical reference numeral always shows identical feature, wherein：
Fig. 1 discloses the entirety of the surge protector with short circuit current defencive function of an embodiment according to the present invention
Structure chart.
Fig. 2 discloses the electricity in the surge protector with short circuit current defencive function of an embodiment according to the present 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 according to the present 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 according to the present invention
The internal structure chart of road overcurrent protection module.
Fig. 5 discloses short in the surge protector with short circuit current defencive function of an embodiment according to the present invention
The structure chart of the partition board of road overcurrent protection module.
Fig. 6 discloses short in the surge protector with short circuit current defencive function of an embodiment according to the present invention
The structure chart of the self-extinguishment shape arc-chutes of road overcurrent protection module.
Specific implementation mode
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.It is plug-in mould that surge protection module, which releases and inhibits surge current and voltage, surge protection module,
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 installation.
Short circuit current protection module includes：Pedestal and lid, moving contact and static contact, Lei Min switches, electromagnetic mechanism, elastic connecting
Line piece, partition board, the first connecting terminal, the second connecting terminal, the first resilient prongs and the second resilient prongs.Cover the shape on pedestal
At 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 are connected to the high resistance measurement that impedance is more than 200m Ω, have 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 and the Spring pins of elastic lug plate are connected with each other, and elastic lug plate provides elastic pressure and compresses the quick switch of thunder.It is quiet
The upper end extension of contact supporting and the first end of coil are welded in the extension of iron yoke.The upper-end bent of elastic lug plate
The second end of extension and coil is welded to each other connection, and the lower end extension point of elastic lug plate is inserted by lug plate and first
Foot piece is connected with each other.Elastic lug plate is with Spring pins, upper-end bent extension and lower end extension point.Partition board is mounted on
On pedestal, partition board is equipped with the grid of trapezoidal shape, and partition board forms self-extinguishment shape arc-chutes with pedestal.The connection of first connecting terminal is external
Phase line, the external phase line of the second connecting terminal connection or ground wire.First resilient prongs and the second resilient prongs grafting surge protection mould
Block, the first resilient prongs connect the first connecting terminal, and the second resilient prongs connect the second connecting terminal.
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 are more than 250V.Short circuit current protection module further includes handle, operating mechanism, snap-gauge 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 equipped with fin in both sides, and the corresponding surface of short circuit current protection module is equipped with corresponding groove.
The surge protector with short circuit current defencive function of the present invention has as follows several：
1) it uses the means that the big resistance of positive temperature coefficient increases current limliting to carry out short circuit current protection, impedance is selected to be more than
The high impedance electromagnetic 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 range is big, is applicable to any earthed system；
2) the TOV resistance patterns of renewable type, without Mars and flame phenomenon；
3) use the close support current of dynamic/static contact in the same direction to reduce the principle of electrodynamic repulsion force, design uses static contact branch
Frame, be U-shaped rotary type structure so that moving contact with install static contact U-shaped rotary type structure stand side electrodynamic
Under effect, there is the active force to attract each other, when lightning impulse current impacts, delay moving contact and denounce the reaction time opened,
Under the action of having attracted, the impact force that reprimand is subject to when opening reduces moving contact simultaneously, thus will not cause operating mechanism tripping because
It impacts and generates malfunction, the design opened, operation machine are only denounceed by electromagnetic mechanism effect in conjunction with the current limliting and contact of high impedance
The stability of structure is very good；
4) before the quick switch of thunder in the quick electric current conversion switch of frequency is to be connected in parallel on electromagnetic coil in the connection of electricity, that is,
It is to first pass through Lei Min switches to release, later electric current of then releasing again passes through electromagnetic coil, drop when saying that lightning impulse current passes through
The surge energy that low electromagnetic coil is carried, improves the surge ability to bear of short circuit current protection module；
5) arc-chutes that self-extinguishment shape is formd by being assemblied in interiors of products replace original manifold type arc-chutes, product
Volume more minimizes.So-called self-extinguishment shape arc-chutes are grid of the design with trapezoidal shape on product parts, pass through product
Assembly forms the arc-chutes of a half-sealed in dynamic/static contact opening and closing place, and to be completely enclosed in this half close for dynamic/static contact
In the arc-chutes of envelope formula.Because of the current limliting of big resistance, when moving contact reprimand is opened so that product is produced in failure high current
Raw arc current is little, carries out arc extinguishing by air-blowing at the first time；
6) moving contact is silver tungsten material, static contact is 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 the function of anti-error plug.
Fig. 1~Fig. 6 discloses the surge protector with short circuit current defencive function of an embodiment according to the present 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
It is problem caused by back-up protection that external over-current protective device is used when device is applied.This is with 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 inhibit, short circuit electricity for surge current and voltage
It is integrated to flow protection module 101 and the pedestal of installation surge protection module 102, and surge protection module 102 is plug type
's.
Short circuit current protection module 101 includes pedestal 103, lid 105, moving contact 106, static contact 107b, Lei Min switch
108, electromagnetic mechanism 109, handle 110, operating mechanism 111, elastic lug plate 112, partition board 113, snap-gauge 114, the first terminals
It sub 115, second connecting terminal 116, the first resilient prongs 117 and the second resilient prongs 118 and can selectively install remote
Journey warning device 104.
Lid 105, which covers on pedestal 103, forms pedestal, i.e. the shell of surge protection module 102.Static contact 107b includes stationary contact
Head bracket 107a, stationary contact bracket 107a are the U-shaped rotary supports using U-shaped rotary type structure, to ensure to flow through static contact
The flow direction of 107b and the electric current of moving contact 106 are consistent, so that the U-shaped revolution branch of moving contact 106 and installation static contact
The side of the close moving contact of frame has the active force to attract each other, ensures in high current capacity under the action of electric power
Under impact, delays moving contact and denounce the reaction time opened, and impact force of the moving contact when reprimand is opened is small, will not lead to operation machine
The malfunction of 111 tripping of structure.
Electromagnetic mechanism 109 includes iron yoke 109a and coil 109b, and coil 109b includes 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 turns of coil 109b is more than 100 circles, advantageous in this way
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 and the coil 109b of electromagnetic mechanism 109 are relationship in parallel in the connection of electricity, further, thunder
The first end of quick switch 108 and the stationary contact bracket 107a of the U-shaped rotary type of static contact 107b are connected with each other, Lei Min switches 108
Second end and the Spring pins of elastic lug plate 112 be connected with each other, provide elastic pressure by Lei Minkai by elastic lug plate 112
108 are closed to 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 the U-shaped rotary type of 107b 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 the second end of coil 109b to be connect.
The lower end extension of elastic lug plate 112 point is connected with each other by lug plate 119 and the first pin 117.Such connecting-type
Formula ensure that the quick switch in parallel of thunder is before electromagnetic mechanism coil on electricity, more specifically, when surge current invades,
When the energy of surge passes through stationary contact bracket, released first by the quick switch of thunder, the electric current after then releasing just passes through
Electromagnetic coil greatly reduces the surge energy that big resistance coil is carried, improves the electricity of short circuit current protection module in this way
Gush ability to bear.
The arc-chutes 120 for being assemblied in interiors of products and foring a self-extinguishment shape of pedestal 103 and partition board 113.Specifically,
It is equipped with the grid of trapezoidal shape on partition board 113, by the close fit of both pedestal 103 and partition board 113, is opened and closed in dynamic/static contact
Place forms the arc-chutes 120 of a half-sealed, and dynamic/static contact is completely enclosed in this arc-chutes.When moving contact is denounceed
When opening generation electric arc, electric arc moves downward under electrodynamic action along the side of the holder of U-shaped revolving structure, at the first time electricity
Arc is directly cut by trapezoidal grid, achievees the effect that extinguish electric arc.
Short circuit current protection module 101 is integrated in the pedestal of installation surge protection module 102, is connect for connecting outside
First and second connecting terminals of line are respectively positioned in short circuit current protection module, and first in short circuit current protection module connects
Line terminals 115 are for being connect with external phase line, and the second connecting terminal 116 is for being connected with external phase line or ground wire.It is short
The first connecting terminal 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 pin 118 of the second connecting terminal 116 and installation surge protection module is connected with each other, and is protected
It demonstrate,proves short circuit current protection module and provides back-up protection to the surge protection module.
Surge protection module 102 is designed as plug type structure, replaces simply, fast.Surge protection module 102 is logical
Corresponding first pin 117 and second that its first inserted sheet 122 and the second inserted sheet 123 are inserted into short circuit current protection module is crossed to insert
Interconnection is realized in foot 118.Surge protection module is equipped with different height fin 121 in its both sides, and in short circuit current
Protection module installs the groove that corresponding surface is equipped with corresponding different height, it is ensured that surge protection module installation is reliable, will not carry out
It misplugs and pulls out operation.
It is 9mm or 18mm that surge protection module 102, which is designed as width, meets International Design convention, module installation 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 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.
The surge protector with short circuit current defencive function of the present invention is with following advantage：
1) it solves the cooperation between lightning impulse current and power frequency short circuit current, while high current limliting is carried out to bulk loop
The requirement of ability, it is preferred to use the big resistance of positive temperature coefficient, as impedance is more than the high value coil of 200m Ω.Current limiting capacity
By force, that is to say, that the protective capability of short circuit current is high, and short circuit breaking capacity is good；
2) small multiple overload current is protected, the protection minimum of low short circuit current reaches 10A, expands short-circuit protection model
It encloses, is applicable to any earthed system；
3) the TOV resistance patterns of renewable type are put forward for the first time, the flame under traditional TOV failures and resistance patterns is eliminated,
Fire hazard is prevented, security reliability is very high；
4) change makes the principle that contact is denounceed out in advance using electrodynamic repulsion force, will not when large capacity lightning impulse current impacts
Malfunction situation occurs, the service life of contact can be improved；
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 malfunction of Lei Min switches, it is ensured that
The stability and short-circuit breaking capacity of product；
6) it is matched using the contact material of resistance to ablation, ablation resistance and anti-electrical wear ability are high, the impact of large capacity lightning current
The variation range of lower contact pressure is small；
7) Lei Min switchs the connection type using elastic component contact, ensures integrity when the quick switch of thunder assembles, convenient for dress
Match；
8) the attracting cooperation with the big resistance current limliting of 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 more minimizes.
Above-described embodiment, which is available to, to be familiar with person in the art to realize or use the present invention, and is familiar with this field
Personnel can make above-described embodiment the invention thought of various modifications or variation without departing from the present invention, thus the protection of the present invention
Range is not limited by above-described embodiment, and should be the maximum magnitude for meeting the inventive features that claims are mentioned.
Claims (9)
1. a kind of surge protector with short circuit current defencive function, which is characterized in that including：
Surge protection module, it is plug-in mould that surge protection module, which releases and inhibits surge current and voltage, surge protection module,
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 include iron yoke and coil；
Lei Min is switched, Lei Min switches connection static contact and elastic lug plate, Lei Min switches and coils from parallel connection of coils, and the first of Lei Min switches
End is connected to stationary contact bracket；
Pedestal and lid cover the shell that pedestal is formed on pedestal；
Elastic lug plate, elastic lug plate is with Spring pins, upper-end bent extension and lower end extension point；
Partition board, partition board are mounted on the base, and partition board forms self-extinguishment shape arc-chutes with pedestal；
First connecting terminal, the external phase line of the first connecting terminal connection；
Second connecting terminal, the external phase line of the second connecting terminal 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 connecting terminal, and the second resilient prongs connect the second connecting terminal.
2. the surge protector with short circuit current defencive function as described in claim 1, which is characterized in that
The electromagnetic coil is connected to the high resistance measurement that impedance is more than 200m Ω.
3. the surge protector with short circuit current defencive function as claimed in claim 2, which is characterized in that
The second end of Lei Min switches and the Spring pins of elastic lug plate are connected with each other, and elastic lug plate provides elastic pressure by thunder
Quick switch compresses；
The upper end extension of stationary contact bracket and the first end of coil are welded in the extension of iron yoke；
The upper-end bent extension of elastic lug plate and the second end of coil are welded to each other connection, 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.
4. the surge protector with short circuit current defencive function as described in claim 1, which is characterized in that on the partition board
Grid equipped with trapezoidal shape.
5. the surge protector with short circuit current defencive function as described in claim 1, which is characterized in that
The moving contact is silver tungsten material；
The static contact is silver-colored tungsten carbide alloy material.
6. the surge protector with short circuit current defencive function as described in claim 1, which is characterized in that
The quick switch of thunder is ceramic gas discharge tube, and discharge voltage is more than 250V.
7. the surge protector with short circuit current defencive function as described in claim 1, which is characterized in that the short circuit electricity
It further includes handle, operating mechanism, snap-gauge and the remote alarming device selectively installed to flow protection module.
8. the surge protector with short circuit current defencive function as described in claim 1, which is characterized in that the surge is protected
Protecting 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 the second resilient prongs slotting
It connects.
9. the surge protector with short circuit current defencive function as described in claim 1, which is characterized in that
The width of surge protection module is 9mm or 18mm；
Surge protection module is equipped with different height fin in both sides, and the corresponding surface of short circuit current protection module is equipped 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 |
|---|---|---|---|
| CN201280077275.4A CN104813432B (en) | 2012-11-12 | 2012-11-12 | Surge protection device having short-circuit current protection function |
| 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 |
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 CN106783431A (en) | 2017-05-31 |
| CN106783431B true CN106783431B (en) | 2018-09-07 |
Family
ID=50683958
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) |
Families Citing this family (8)
| 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 |
| EP3458932A4 (en) | 2016-05-20 | 2020-04-29 | 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 |
| 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 |
| CN110323730B (en) * | 2019-06-05 | 2024-04-23 | 杭州国民电气有限公司 | Surge protector |
| CN112350269A (en) * | 2019-08-07 | 2021-02-09 | 上海永继电气股份有限公司 | Back-up protector of surge protector |
| CN115223826B (en) * | 2022-09-20 | 2023-03-10 | 国网山东省电力公司桓台县供电公司 | But alarm device of voltage fluctuation fixed point identification trouble |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004018275B4 (en) * | 2004-04-15 | 2007-10-18 | Siemens Ag | switchgear |
| DE102006000919A1 (en) * | 2006-01-05 | 2007-07-19 | Dehn + Söhne Gmbh + Co. Kg | Plug-in surge arrester with one or more overvoltage protection elements |
| 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 |
| FR2928026B1 (en) * | 2008-02-27 | 2011-08-19 | Schneider Electric Ind Sas | OVERVOLTAGE PROTECTION DEVICE COMPRISING SELECTIVE DISCONNECT MEANS |
| CN101320658B (en) * | 2008-06-25 | 2011-08-24 | 上海电科电器科技有限公司 | Surge protector with backup protection |
| 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 WO PCT/CN2012/084450 patent/WO2014071628A1/en active Application Filing
- 2012-11-12 EP EP12887906.1A patent/EP2919254B1/en active Active
- 2012-11-12 CN CN201280077275.4A patent/CN104813432B/en active Active
-
2020
- 2020-05-20 CY CY20201100461T patent/CY1123104T1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP2919254B1 (en) | 2020-02-26 |
| EP2919254A4 (en) | 2016-08-10 |
| CN104813432B (en) | 2017-02-22 |
| CN104813432A (en) | 2015-07-29 |
| EP2919254A1 (en) | 2015-09-16 |
| CN106783431A (en) | 2017-05-31 |
| ES2791039T3 (en) | 2020-10-30 |
| CY1123104T1 (en) | 2021-10-29 |
| WO2014071628A1 (en) | 2014-05-15 |
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