CN106449288A - Intelligent low-voltage circuit breaker and arc extinguishing chamber thereof - Google Patents
Intelligent low-voltage circuit breaker and arc extinguishing chamber thereof Download PDFInfo
- Publication number
- CN106449288A CN106449288A CN201610785677.XA CN201610785677A CN106449288A CN 106449288 A CN106449288 A CN 106449288A CN 201610785677 A CN201610785677 A CN 201610785677A CN 106449288 A CN106449288 A CN 106449288A
- Authority
- CN
- China
- Prior art keywords
- arc
- circuit breaker
- voltage circuit
- chutes
- intelligent low
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- H01H71/0235—Contacts and the arc extinguishing space inside individual separate cases, which are positioned inside the housing of the circuit breaker
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/18—Means for extinguishing or suppressing arc
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention relates to the technical field of a low-voltage circuit breaker, and in particular to an intelligent low-voltage circuit breaker and an arc extinguishing chamber thereof. The intelligent low-voltage circuit breaker comprises a circuit breaker body, wherein the circuit breaker body comprises an operating mechanism, a contact assembly, a current transformer, a magnetic flux switch and an arc extinguishing chamber which are arranged in a plastic shell, and an intelligent module is further arranged in the plastic shell. By the intelligent low-voltage circuit breaker, the functions of remote inquiry and intelligent monitoring are achieved, moreover, the arc extinguishing speed is greatly increased, and the safety is improved. The arc extinguishing chamber of the circuit breaker can be used for playing a role in arc isolation, secondary breakdown is prevented, moreover, the arc extinguishing chamber has a guide effect on arc striking, so that an arc rapidly moves and is stretched, the arc striking time is shorter, the circuit breaker has better breaking capability, and the arc is favorably and rapidly extinguished.
Description
Technical field
The present invention relates to low-voltage circuit breaker technical field, especially a kind of intelligent low voltage circuit breaker and its arc-chutes.
Background technology
Low-voltage circuit breaker is that one kind not only can be connected and disjunction normal duty electric current and overload electric current, can also connect
Device for switching with disjunction short circuit current.Low-voltage circuit breaker in addition to playing control action, also has certain protection work(in circuit
Can, such as overload, short circuit, under-voltage and earth leakage protective etc..The mode classification of low-voltage circuit breaker is a lot, divides by arc-extinguishing medium, has time
Gas formula and vacuum type, low-voltage circuit breaker range of capacity is very big, is widely used.Low-voltage circuit breaker is widely used in low-voltage distribution system
Outgoings at different levels, the power supply of various plant equipment and the control of electric terminal and protection, with national intelligent grid construction
Quickly propel and implement, existing low-voltage circuit breaker has problems with：1st, it is not easy to remote inquiry, need periodical inspection, wave
Take manpower；2nd, there is the risk of second breakdown in arc-chutes, breaker and the person can be caused encroach on；3rd, arc extinguishing speed is slow, disjunction
Ability；4th, current transformer packing, and circuit breaker internal narrow space, dismounting extremely bothers.
Content of the invention
The purpose of the present invention is the defect overcoming prior art to exist, and provides a kind of intelligence that at least can realize remote inquiry
Can low-voltage circuit breaker and its arc-chutes.
In order to realize the purpose of the present invention, be employed technical scheme comprise that：
The intelligent low voltage circuit breaker of the present invention includes breaker body, and described breaker body includes being arranged on to be moulded in shell
Operating mechanism, contact assembly, current transformer, Flux switch and arc-chutes, described moulding in shell is also equipped with intelligent object, described
Intelligent object includes current-voltage sampling module, processing and control module, wireless communication module and display module, described Current Mutual Inductance
Device is electrically connected with described current-voltage sampling module, and described processing and control module is adopted with described Flux switch, Current Voltage respectively
Egf block, wireless communication module, display module are connected, and described processing and control module is also associated with communication interface, described processor
It is connected with remote terminal by wireless communication module or communication interface.
The lower section of display module of the present invention is provided with control panel, described control panel is arranged described communication interface and
Control button, described communication interface is USB interface, and described communication interface is provided with capping, described control button and described process
Control module is connected.
Contact assembly of the present invention includes being arranged on the moving contact of moving contact arm end and is arranged on stationary contact head arm end
Static contact, described moving contact is relative with static contact and is all located at that arc extinguishing is indoor, and described moving contact arm is driven by operating mechanism.
Arc-chutes of the present invention include two side plates and the multiple vertically disposed arc extinguishing being arranged between two side plates
Grid, the bottom of described arc-chutes arranges described stationary contact head arm, is provided with insulating protector between described stationary contact head arm and arc-chutes,
Described insulating protector is coated on the top of described stationary contact head arm, and one end of described insulating protector extends upward vertical protection
Body, described vertical protective coats the outer end of described arc extinguishing grid pieces.
The bottom of the arc extinguishing grid pieces of the bottom of the present invention is provided with striking pin, has between described striking pin and described static contact
Gap, described insulating protector has the port allowing described static contact project insulating protector.
Flash barrier is installed the top side detachable of arc-chutes of the present invention, described flash barrier be fixed on two side plates it
Between.
Built with three current transformers, three current transformer integrated installations are in the guarantor of integral type for shell of moulding of the present invention
In protective case body, the side of described protective housing is provided with least three card convexs, and the other side of described protective housing extends outward
Erection joint, is provided with least three holding tanks, described holding tank is removably provided with cover plate in described protective housing, described
It is disposed with silicon steel sheet in holding tank and accommodates area and coil hollow column, described cover plate offers the first port, described containment vessel
Second port is offered on body, described first port is connected with described second port by coil hollow column.
One current transformer is installed in each described holding tank of the present invention, the silicon steel sheet group of described current transformer is placed
Described silicon steel sheet is gone to accommodate in area, the coil of described current transformer is set on described coil hollow column.
Protective housing of the present invention is additionally provided with multiple string holes near the side of described erection joint, and each holding tank corresponds to
One string holes of setting, the wiring of described current transformer is connected through described string holes with described current-voltage sampling module
The present invention also provides a kind of arc-extinguishing chamber of circuit breaker, and for above-mentioned intelligent low voltage circuit breaker, described arc-chutes include
Two side plates and the multiple vertically disposed arc extinguishing grid pieces being arranged between two side plates, the bottom setting of described arc-chutes is described
Stationary contact head arm, is provided with insulating protector between described stationary contact head arm and arc-chutes, described insulating protector is coated on described stationary contact
The top of head arm, one end of described insulating protector extends upward vertical protective, goes out described in described vertical protective cladding
The outer end of arc grid
In the present invention, the bottom of the arc extinguishing grid pieces of the bottom is provided with striking pin, has between described striking pin and described static contact
There is gap, described insulating protector has the port allowing described static contact project insulating protector.
The beneficial effect of the intelligent low voltage circuit breaker of the present invention and its arc-chutes is：The intelligent low voltage circuit breaker bag of the present invention
Include breaker body, breaker body includes being arranged on the operating mechanism moulding in shell, contact assembly, current transformer, magnetic flux are opened
Close and arc-chutes, mould and in shell, be also equipped with intelligent object, intelligent object include current-voltage sampling module, processing and control module,
Wireless communication module and display module, current transformer is electrically connected with current-voltage sampling module, processing and control module respectively with
Flux switch, current-voltage sampling module, wireless communication module, display module are connected, and processing and control module is also associated with communicating
Interface, processor passes through wireless communication module or communication interface is connected with remote terminal.The intelligent low voltage circuit breaker of the present invention is real
Show the function of remote inquiry and intelligent monitoring, and arc extinguishing speed has greatly improved, security has improved, the breaker of the present invention has gone out
Arc chamber can play the effect of arc, prevents second breakdown, and plays guide effect to striking, and quickly movement is drawn to make electric arc
Long, make the striking time shorter, breaker breaking capacity more preferably, is conducive to electric arc quickly to extinguish.
Brief description
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Fig. 1 is the structural representation of the intelligent low voltage circuit breaker of the present invention；
Fig. 2 is the internal structure schematic diagram of the intelligent low voltage circuit breaker of the present invention；
Fig. 3 is the structural representation of the arc-chutes of the present invention；
Fig. 4 is the mounting structure schematic diagram of the insulating protector of the present invention；
Fig. 5 is the structural representation of the insulating protector of the present invention；
Fig. 6 is the structural representation of the protective housing of the present invention；
Fig. 7 is the internal structure schematic diagram of the protective housing of the present invention.
Wherein：Operating mechanism 1；Current transformer 2；Arc-chutes 3, side plate 31, arc extinguishing grid pieces 32, insulating protector 33, every
Arc plate 34；Display module 4；Processing and control module 5；Moving contact arm 61, stationary contact head arm 62；Protective housing 7, card convex 71, installation connects
72, cover plate 73.
Specific embodiment
In describing the invention it is to be understood that term " radially ", " axial ", " on ", D score, " top ", " bottom ",
The orientation of instruction such as " interior ", " outward " or position relationship are based on orientation shown in the drawings or position relationship, are for only for ease of and retouch
State the present invention and simplify description, rather than the device of instruction or hint indication or element must have specific orientation, with specific
Azimuth configuration and operation, be therefore not considered as limiting the invention.In describing the invention, unless otherwise stated,
" multiple " are meant that two or more.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " set
Put ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be to be joined directly together it is also possible to be indirectly connected to by intermediary.For the ordinary skill in the art, can basis
Concrete condition understands above-mentioned term concrete meaning in the present invention.
As shown in figs. 1-7, the intelligent low voltage circuit breaker of the present embodiment includes breaker body, and breaker body includes installing
In the operating mechanism 1 moulded in shell, contact assembly, current transformer 2, Flux switch and arc-chutes 3, mould and in shell, be also equipped with intelligence
Module, intelligent object includes current-voltage sampling module, processing and control module 5, wireless communication module and display module 4, electric current
Transformer 2 is electrically connected with current-voltage sampling module, processing and control module 5 respectively with Flux switch, current-voltage sampling module,
Wireless communication module, display module 4 are connected, and the current and voltage signals of the breaker collecting can be sent out by current-voltage sampling module
Give processing and control module 5, processing and control module 5 carries out analog-to-digital conversion and is shown on display module 4, on display module 4 also
Can show and run related parameter to low-voltage circuit breaker, in order to operating personnel's quick obtaining breaker security related information.
For the ease of remote inquiry, processing and control module 5 is also associated with communication interface, and processor passes through wireless communication module
Or communication interface is connected with remote terminal, remote terminal can be PC, mobile phone, PDA or control server, and operating personnel can
With remote inquiry, without manual patrol.Wherein, the lower section of display module 4 is provided with control panel, and setting communication on control panel connects
Mouth and control button, communication interface is USB interface, and communication interface is provided with capping, control button and processing and control module 5 phase
Even.
As the preferred version in the present embodiment, the processing and control module 5 of the present embodiment can also realize intelligent monitoring work(
Can, specifically, it is embedded in software systems in processing and control module 5, rated voltage and specified electricity can be set by software systems
Stream etc., when the Current Voltage that processing and control module 5 collects exceedes rated load, processing and control module 5 drives Flux switch
Power-off is it is ensured that circuit safety.
Contact assembly in the present embodiment includes being arranged on the moving contact of moving contact arm 61 end and is arranged on stationary contact head arm
The static contact of 62 ends, moving contact and static contact are relative and are all located in arc-chutes 3, and moving contact arm 61 is driven by operating mechanism 1.
Wherein, arc-chutes 3 include two side plates 31 and the multiple vertically disposed arc extinguishing grid pieces 32 being arranged between two side plates 31, go out
The bottom setting stationary contact head arm 62 of arc chamber 3.
In order to allow electric arc quickly to extinguish, between stationary contact head arm 62 and arc-chutes 3, it is provided with insulating protector 33, insulating protector
33 tops being coated on stationary contact head arm 62, one end of insulating protector 33 extends upward vertical protective, vertical protective bag
Cover the outer end of arc extinguishing grid pieces 32, insulating protector 33 can play the effect of arc, prevent second breakdown, and striking is risen
To guide effect, insulating protector 33 increase arc-chutes 3 internal gas pressure in addition, make electric arc quickly mobile elongation, so that during striking
Between shorter, breaker breaking capacity more preferably, is conducive to electric arc quickly to extinguish.
Preferably, insulating protector 33 is made using aerogenesis arc quenching material, for example with nylon66 fiber or nylon 46, resistance to combustion,
Wear-resisting, tensile strength is high, electrical insulating property is good, and side plate 31 is made using polyamide, and arc extinguishing grid pieces 32 are made using steel matter,
Nickel film is coated with arc extinguishing grid pieces 32.
The bottom of the arc extinguishing grid pieces 32 of the bottom is provided with striking pin, has gap between striking pin and static contact, and insulation is protected
Watch box 33 has the port allowing static contact project insulating protector 33.The moving contact of breaker is located at the top of static contact, open circuit
During device disjunction, electric arc produces, and electric arc can be walked upwards along striking pin, and electric arc is introduced in arc-chutes 3, and insulating protector 33 is permissible
Play the effect of arc, prevent the contingency that second breakdown causes, and insulating protector 33 increases arc-chutes 3 internal gas pressure,
Make electric arc quickly mobile elongation, electric arc can the more smooth disjunction being rapidly introduced in arc-chutes 3, breaker being greatly improved
Ability, the quenching time substantially shortens.
Flash barrier 34 is installed the top side detachable of arc-chutes 3, flash barrier 34 is fixed between two side plates 31, arc
Plate 34 can play the effect of arc it is ensured that breaker safe.
Moulding typically can be equipped with three current transformer 2, for the ease of dismounting current transformer 2, in the present embodiment in shell
In the protective housing 7 of integral type, the side of protective housing 7 is provided with least three card convexs to three current transformer 2 integrated installations
71, card convex 71 can directly snap onto the groove spacing fixation of interior formation within low-voltage circuit breaker, the other side of protective housing 7
Extend outward erection joint 72, in erection joint 72, be provided with fixing threaded hole, protective housing 7 can be fixed on by screw low
The fast assembling-disassembling of current transformer 2 in voltage breaker, can be realized by said structure, three current transformers 2 can be consolidated in advance
It is scheduled in protective housing 7, because space outerpace is larger, installation operation is convenient, then fixes protective housing 7 and moulds in shell, and
Fixed by screw, it is to avoid moulding in shell narrow space, three current transformers 2 are dispensed, disassembly efficiency greatly improves.
Specifically, it is provided with three holding tanks in the protective housing 7 of the present embodiment, holding tank is removably provided with cover plate
73, it is disposed with silicon steel sheet in holding tank and accommodates area and coil hollow column, cover plate 73 offers the first port, protective housing 7
On offer the second port, the first port is connected with the second port by coil hollow column.One is installed in each holding tank
Current transformer 2, the silicon steel sheet group of current transformer 2 is placed and goes silicon steel sheet to accommodate in area, and the coil of current transformer 2 is set in
On coil hollow column.Protective housing 7 is additionally provided with multiple string holes near the side of erection joint 72, and each holding tank is correspondingly arranged
One string holes, the wiring of current transformer 2 is connected through string holes with current-voltage sampling module.
Intelligent low voltage circuit breaker in the present embodiment achieves the function of remote inquiry and intelligent monitoring, and arc extinguishing speed
Greatly improve, security improves.
The present embodiment also provides a kind of arc-extinguishing chamber of circuit breaker, and arc-chutes 3 include two side plates 31 and are arranged on two side plates
Multiple vertically disposed arc extinguishing grid pieces 32 between 31, bottom setting stationary contact head arm 62, stationary contact head arm 62 and the arc extinguishing of arc-chutes 3
It is provided with insulating protector 33, insulating protector 33 is coated on the top of stationary contact head arm 62, one end of insulating protector 33 between room 3
Extend upward vertical protective, vertical protective coats the outer end of arc extinguishing grid pieces 32, and this arc-extinguishing chamber of circuit breaker can individually be made
Make production and use, be applied in different types of low-voltage circuit breaker.
In order to improve the arc extinguishing speed of arc-extinguishing chamber of circuit breaker, the bottom of the arc extinguishing grid pieces 32 of the bottom is provided with striking pin, draws
There is between arc pin and static contact gap, insulating protector 33 has the port allowing static contact project insulating protector 33.
The arc-extinguishing chamber of circuit breaker of the present embodiment can play the effect of arc, prevents second breakdown, and striking is played
Guide effect, makes electric arc quickly mobile elongation, makes the striking time shorter, breaker breaking capacity more preferably, is conducive to electric arc quick
Extinguish.
It should be appreciated that specific embodiment described above is only used for explaining the present invention, it is not intended to limit the present invention.By
Obvious change that the spirit of the present invention is extended out or change among still in protection scope of the present invention.
Claims (10)
1. a kind of intelligent low voltage circuit breaker, including breaker body, described breaker body includes being arranged on the operation moulding in shell
Mechanism (1), contact assembly, current transformer (2), Flux switch and arc-chutes (3) it is characterised in that：Described moulding in shell is also pacified
Equipped with intelligent object, described intelligent object include current-voltage sampling module, processing and control module (5), wireless communication module and
Display module (4), described current transformer (2) is electrically connected with described current-voltage sampling module, described processing and control module (5)
It is connected with described Flux switch, current-voltage sampling module, wireless communication module, display module (4) respectively, described process controls
Module (5) is also associated with communication interface, and described processor passes through wireless communication module or communication interface is connected with remote terminal.
2. intelligent low voltage circuit breaker according to claim 1 it is characterised in that：The lower section of described display module (4) is provided with
Control panel, described control panel arranges described communication interface and control button, and described communication interface is USB interface, described
Communication interface is provided with capping, and described control button is connected with described processing and control module (5).
3. intelligent low voltage circuit breaker according to claim 2 it is characterised in that：Described contact assembly includes being arranged on dynamic touching
The moving contact of head arm (61) end and be arranged on the static contact of stationary contact head arm (62) end, described moving contact relative with static contact and
It is all located in arc-chutes (3), described moving contact arm (61) is driven by operating mechanism (1).
4. intelligent low voltage circuit breaker according to claim 3 it is characterised in that：Described arc-chutes (3) include two side plates
(31) and the multiple vertically disposed arc extinguishing grid pieces (32) that are arranged between two side plates (31), the bottom of described arc-chutes (3)
Described stationary contact head arm (62) is set, between described stationary contact head arm (62) and arc-chutes (3), is provided with insulating protector (33), described exhausted
Edge protective (33) is coated on the top of described stationary contact head arm (62), and one end of described insulating protector (33) extends upward perpendicular
To protective, described vertical protective coats the outer end of described arc extinguishing grid pieces (32).
5. intelligent low voltage circuit breaker according to claim 4 it is characterised in that：The bottom of the arc extinguishing grid pieces (32) of the bottom
Be provided with striking pin, between described striking pin and described static contact, there is gap, described insulating protector (33) have allow described quiet
Contact projects the port of insulating protector (33).
6. intelligent low voltage circuit breaker according to claim 5 it is characterised in that：The top side detachable of described arc-chutes (3)
Flash barrier (34) is installed, described flash barrier (34) is fixed between two side plates (31).
7. intelligent low voltage circuit breaker according to claim 6 it is characterised in that：Described shell of moulding is built with three Current Mutual Inductances
Device (2), three current transformer (2) integrated installations in the protective housing (7) of integral type, the side of described protective housing (7)
It is provided with least three card convexs (71), the other side of described protective housing (7) extends outward erection joint (72), described protection
It is provided with least three holding tanks in housing (7), described holding tank is removably provided with cover plate (73), cloth in described holding tank
It is equipped with silicon steel sheet and accommodates area and coil hollow column, described cover plate (73) offers the first port, on described protective housing (7)
Offer the second port, described first port is connected with described second port by coil hollow column.
8. intelligent low voltage circuit breaker according to claim 7 it is characterised in that：One electricity is installed in each described holding tank
Current transformer (2), the silicon steel sheet group of described current transformer (2) is placed and goes described silicon steel sheet to accommodate in area, described Current Mutual Inductance
The coil of device (2) is set on described coil hollow column.
9. intelligent low voltage circuit breaker according to claim 8 it is characterised in that：Described protective housing (7) is near described peace
The side of joint (72) is additionally provided with multiple string holes, and each holding tank is correspondingly arranged a string holes, described current transformer (2)
Wiring is connected through described string holes with described current-voltage sampling module.
10. a kind of arc-extinguishing chamber of circuit breaker, for the intelligent low voltage circuit breaker as described in claim 1-9 any one, its feature
It is：Described arc-chutes (3) include two side plates (31) and multiple vertically disposed going out of being arranged between two side plates (31)
Arc grid (32), the bottom of described arc-chutes (3) arranges described stationary contact head arm (62), described stationary contact head arm (62) and arc-chutes
(3) it is provided with insulating protector (33) between, described insulating protector (33) is coated on the top of described stationary contact head arm (62), described
One end of insulating protector (33) extends upward vertical protective, and described vertical protective coats described arc extinguishing grid pieces (32)
Outer end, the bottom of the arc extinguishing grid pieces (32) of the bottom is provided with striking pin, between having between described striking pin and described static contact
Gap, described insulating protector (33) has the port allowing described static contact project insulating protector (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610785677.XA CN106449288B (en) | 2016-08-29 | 2016-08-29 | A kind of intelligent low voltage circuit breaker and its arc-chutes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610785677.XA CN106449288B (en) | 2016-08-29 | 2016-08-29 | A kind of intelligent low voltage circuit breaker and its arc-chutes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106449288A true CN106449288A (en) | 2017-02-22 |
| CN106449288B CN106449288B (en) | 2019-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610785677.XA Active CN106449288B (en) | 2016-08-29 | 2016-08-29 | A kind of intelligent low voltage circuit breaker and its arc-chutes |
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| Country | Link |
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| CN (1) | CN106449288B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108333414A (en) * | 2018-03-29 | 2018-07-27 | 上海麦豆电气有限公司 | Current Voltage acquisition module |
| CN108565184A (en) * | 2018-05-16 | 2018-09-21 | 许昌亿源电气有限公司 | A kind of outdoor permanent magnetic intelligent breaker |
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| CN108565184A (en) * | 2018-05-16 | 2018-09-21 | 许昌亿源电气有限公司 | A kind of outdoor permanent magnetic intelligent breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106449288B (en) | 2019-08-13 |
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