CN109036994A - Nonpolarity miniature circuit breaker - Google Patents
Nonpolarity miniature circuit breaker Download PDFInfo
- Publication number
- CN109036994A CN109036994A CN201811286405.0A CN201811286405A CN109036994A CN 109036994 A CN109036994 A CN 109036994A CN 201811286405 A CN201811286405 A CN 201811286405A CN 109036994 A CN109036994 A CN 109036994A
- Authority
- CN
- China
- Prior art keywords
- contact component
- arc
- static contact
- moving contact
- chutes
- 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.)
- Pending
Links
Classifications
-
- 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
-
- 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
- H01H71/10—Operating or release mechanisms
-
- 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
- H01H73/04—Contacts
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Breakers (AREA)
Abstract
The present invention discloses a kind of nonpolarity miniature circuit breaker, it include: operating mechanism, static contact component, moving contact component and arc-chutes, moving contact component is oppositely arranged with static contact component, operating mechanism connection moving contact component simultaneously controls its movement, the arc-chutes include left arc-chutes and right arc-chutes, the dynamic and static contact assembly is located between two arc-chutes and abuts two arc-chutes, static contact component includes left static contact component and right static contact component, and moving contact component is contacted or separated with left static contact component and right static contact component simultaneously.There are two switch fracture and two arc-chutes for breaker tool of the present invention, and two switch fracture series connection, when cut-offfing circuit, the arc energy of generation is shared by two fractures, and blow-out is undertaken respectively by two arc-chutes, is conducive to quick blow-out.
Description
Technical field
The present invention relates to electric switch technical fields, more particularly to a kind of nonpolarity miniature circuit breaker.
Background technique
Existing miniature circuit breaker is there is usually one switch fracture, the moving contact and one which is rotated by one
A static contact composition, is configured with an arc-chutes to inductive switch fracture.When cut-offfing circuit, all arc energies are by this
Fracture cut-offs and by this arc-chutes blow-out, and arc-rupturing capacity is weak, and this structuring limits points of single-stage miniature circuit breaker
Cutting capacity.
Switch fracture and arc-chutes have a distance, this distance cut-offs circuit and generate electric arc generally between 6~12mm
Afterwards, it needs that electric arc is introduced arc-chutes by run-on tab, arc striking piece etc. and extinguishes, lead to that the arcing time is long, blow-out process is slow, sound
The various problems such as contact ablation, seriously affect the service life of breaker.
For DC micro breaker, striking will be relied under the action of externally-applied magnetic field by switching the electric arc that fracture generates
Plate, arc striking piece etc. import arc-chutes, not only increase material cost, but also increase manual assembly expense.Furthermore due to miniature open circuit
The inner space of device is limited, can only local fixed permanent magnet, need that magnetic field pole has been previously set according to the electric power polarity used
Property, arc blow-out could be conducive to, therefore it can only be formed with polar arc blow-out characteristic, limit its application field.
In order to avoid due to the polarity setup error bring person and property loss, need it is a kind of without consider polarity,
The nonpolarity miniature circuit breaker of reliable striking and arc quenching effect may be implemented.
Summary of the invention
The purpose of the present invention is to provide a kind of nonpolarity miniature circuit breakers, to overcome the prior art to cannot achieve reliably
Striking and arc quenching effect problem, and without considering polarity, improve safety in utilization.
To achieve the above object, the invention adopts the following technical scheme:
A kind of nonpolarity miniature circuit breaker, including operating mechanism, static contact component, moving contact component and arc-chutes move touching
Head assembly is oppositely arranged with static contact component, and operating mechanism connection moving contact component simultaneously controls its movement, the arc-chutes packet
Left arc-chutes and right arc-chutes are included, the dynamic and static contact assembly is located between two arc-chutes and abuts two arc-chutes, quiet
Contact assembly includes left static contact component and right static contact component, the current direction phase of left static contact component and right static contact component
It is same and opposite with the current direction on moving contact component；Operating mechanism control moving contact component simultaneously with left static contact component and the right side
Static contact component contact or separation, to realize closing lock or opening a sluice gate for breaker；When cut-offfing circuit, static contact component and moving contact
The electrodynamic repulsion force generated between component pushes moving contact component quickly to leave static contact component, left and right static contact component and dynamic touching
The electric arc formed between head assembly carries out blow-out by two arc-chutes respectively.
Further, the left and right static contact component leads cambered surface towards corresponding arc-chutes extension one is inclined respectively, moves
Contact assembly both ends correspond to the cambered surface of leading on left and right static contact component and respectively extend an inclined cambered surface of leading into left and right arc-chutes.
Further, the moving contact component includes a touching bridge, and the left static contact component and right static contact component are equal
Be parallel to the conductive arm of the touching bridge equipped with one section, the current direction on two conductive arms it is identical and with the current direction phase on touching bridge
Instead.
Further, a stationary contact is respectively provided with against neighbouring arc-chutes on the conductive arm of the left and right static contact component
Point, stationary contact face touch bridge, touch opposite two stationary contacts on bridge and set there are two movable contact, the contact or separation of dynamic and static contact are real
The closure of existing circuit is cut-off.
Further, the touching bridge is fixed with a spring leaf in the one side of movable contact, the stress at the spring leaf both ends
Point is located at or below described two movable contact.
Further, the operating mechanism includes the moving contact rack for connecting moving contact component, and moving contact rack is located at
Between left and right static contact component, moving contact rack slides that moving contact component is driven to contact or divide with static contact component up and down
From.
Further, the moving contact component, spring leaf and moving contact rack form excess of stroke structure, on moving contact rack
After moving and moving contact component being driven to contact with left and right static contact component, continue to move up moving contact rack, moving contact rack compresses bullet
Reed, spring leaf provide reliable contact pressure for the closure of dynamic and static contact assembly.
Further, the left and right arc-chutes are connected by a run-on tab, and one is equipped between run-on tab and spring leaf and is led
Electrical spring, during moving contact component moves up and down, which abuts run-on tab and spring leaf respectively always.
Further, the moving contact rack is equipped with a main buckle placed vertically, touches bridge and spring leaf is placed through
Moving contact rack end, when dynamic and static contact assembly is closed, main buckle is compressed and is stored as driving moving contact and static contact disjunction institute
The energy storage elastic force needed.
The invention has the following advantages:
1. there are two switch fracture and two arc-chutes for breaker tool, two switch fractures are connected, when cut-offfing circuit,
The arc energy of generation is shared by two fractures, and blow-out is undertaken respectively by two arc-chutes, is conducive to quick blow-out.
2. switch fracture of the invention abuts arc-chutes, dynamic and static contact assembly be equipped with extend to arc-chutes lead arc inclined-plane,
The electric arc that two fractures generate is mutually exclusive in the case where electric arc encourages oneself magnetic fields, and rapidly enters arc-chutes progress along arc inclined-plane is led
Blow-out realizes nonpolarity arc blow-out characteristic truly, and the nonpolarity miniature circuit breaker is made to be suitable for the electricity of all spectra
Road.
3. the current direction on current direction and moving contact component on two static contact components is on the contrary, dynamic/static contact is cut-off
When, the electric power that electric current generates is mutually exclusive, by using conductive arm parallel to each other and touching bridge structure, makes dynamic/static contact disjunction
Maximum electrodynamic repulsion force is generated when fault current, moving contact component is made quickly to leave static contact component, and break is short, favorably
In arc extinction.
4. using Reed type travel mechanism, when spring leaf is pressurized, moving contact component both ends while stress make two sound
Contact point stress equalization, contact are reliable.
Detailed description of the invention
Fig. 1 shows the overall schematic of case for circuit breaker lid conjunction state of the present invention；
Fig. 2 shows the internal front views of breaker circuit off-state of the present invention；
Fig. 3 shows the internal front view of breaker circuit closed state of the present invention；
Fig. 4 shows the inside stereoscopic schematic diagram of breaker circuit off-state of the present invention；
Fig. 5 shows current direction schematic diagram when breaker of the present invention generates fault current；
Fig. 6 shows the electric arc arc quenching principle schematic diagram of breaker of the present invention, the two sections of electric arc edges generated between dynamic/static contact
Arrow direction is mutually exclusive.
Specific embodiment
Now in conjunction with the drawings and specific embodiments, the invention will be further described.Term " on " used in hereafter,
"lower", "left", "right" are set referring to attached drawing drawing, merely to describing convenient rather than limitation of the present invention.
As shown in Figures 1 to 6, nonpolarity miniature circuit breaker provided by the invention specifically includes that plastic shell and is placed in it
In left and right wiring clip assembly, operating mechanism, magnetic tripping system, thermal tripping system, moving contact component, static contact component and arc extinguishing
Room.Shell includes pedestal 1 and upper cover 29, and all inner bodies of breaker are reference for installation with pedestal 1 and upper cover 29.Wherein,
Left wiring clip assembly 30 connects thermal tripping system and power supply, and right wiring clip assembly 13 connects magnetic tripping system and load, magnetic tripping
System is electrically connected with thermal tripping system by the realization of dynamic and static contact assembly.Moving contact component is oppositely arranged with static contact component 16,
Arc-chutes are symmetrical set into two relative to moving contact component and static contact component 16.
Moving contact component 16 includes a touching bridge 26, and the both ends for touching the one side of 26 face static contact component of bridge are respectively equipped with one
Against the movable contact 24 of arc-chutes.The touching left and right both ends of bridge 26 extend respectively in left and right two arc-chutes 12,14, extension
It is divided into and inclined leads cambered surface 27.Touching bridge 26 is fixed with a spring leaf 17 in the one side of movable contact, 17 both ends of spring leaf by
Force is located at or against two 24 lower section of movable contact.
Static contact component includes left static contact component 15 and right static contact component 21, and left static contact component passes through thermal tripping system
System connection power supply, right static contact component pass through the connection load of magnetic tripping system.Left static contact component 15 and right static contact component 21
Be equipped with one section of conductive arm 32,33 for being parallel to touching bridge 26, the current direction on two conductive arms it is identical and with the electricity on touching bridge
It flows contrary.Each conductive arm is equipped with one and tilts the cambered surface of leading for extending to neighbouring arc-chutes, the corresponding touching bridge of each conductive arm
A neighbouring movable contact 24 on 26 is equipped with a stationary contact 23.
Dynamic and static contact assembly constitutes two switch fractures, and to lead cambered surface fast along inclined for the electric arc of two switch fractures generations
Speed enters arc-chutes and carries out blow-out, also, due to the current direction on moving contact component and static contact component on the contrary, moving contact group
When part is cut-off, the electric power that the electric current of moving contact component and static contact component generates is mutually exclusive, pushes moving contact component quick
Static contact component is left, since break is short, is conducive to arc extinction.
Operating mechanism mainly includes handle 5, handle return spring 4, lever 6, locking-bar 8 and moving contact rack 18,5 He of handle
Use linking axes 3 hinged between lever 6 and between lever 6 and moving contact rack 18, locking-bar is fixed on bottom by a shaft
It is connected on seat and with lever.Locking-bar also links with an indicator 7, is known by the instruction information of sight indicator 7
Breaker is in separating brake or "on" position.
It is equipped with a groove in moving contact rack 18, is placed with main buckle 20 vertically in groove, the limited block 28 on pedestal 1 prolongs
It extends in the groove, 20 upper end of main buckle pushes limited block 28, and lower end pushes moving contact rack 18.The touching bridge of moving contact component 16
26 and spring leaf 17 be placed through 18 end of moving contact rack.Operating mechanism driving moving contact rack 18 moves up and down, and makes moving contact
Component 16 is contacted or is separated with left static contact component 15 and right static contact component 21 simultaneously, is realized breaker closing with this or is broken
It opens.When dynamic and static contact assembly is closed, energy storage bullet needed for main buckle is compressed and is stored as driving moving contact and static contact disjunction
Power, when circuit malfunctions, main buckle rebound pushes moving contact to leave static contact.
Left and right arc-chutes 12,14 bottoms are connected by a run-on tab, and the position of the 18 face run-on tab of moving contact rack is opened
Equipped with keeping away a hole.One power spring, 19 one end abuts run-on tab, and the other end passes through and keeps away a hole and abut to spring leaf 17, in moving contact
During component 16 moves up and down, which abuts run-on tab and spring leaf 17 respectively always.
Thermal tripping system includes bimetal leaf 25, release lever 2 etc., and bimetal leaf 25 passes through electric wire and left 15 component of static contact
Connection, release lever 2 are rotatably mounted on pedestal and realize the support and electrical connection to locking-bar by a lock face.Magnetic is de-
Button system includes that coil 9, core assembly 10, magnetic yoke 11 and magnetic tripping push rod 22,9 one end of coil and right static contact component 21 connect
It connects, the other end is connect with right wiring clip assembly 13.When short-circuit, the magnetic force that coil generates drives magnetic tripping push rod towards release lever
It is mobile, and release lever 2 is pushed to rotate, unlock release lever and locking-bar.It is rotated down after locking-bar unlock, and drives operation system
System disconnects dynamic/static contact.
Moving contact component 16, spring leaf 17 and moving contact rack 18 collectively constitute excess of stroke structure, and moving contact component 16 is upward
It is moved to after being contacted with static contact component, continues to move up moving contact rack 18, then 18 compression spring leaf 17 of moving contact rack.
When spring leaf 17 compresses, the stress point of the stress balance at both ends, 17 both ends of spring leaf is located at or under two moving contact 24
Side, ensure that the stress equalization of two moving contacts 24, provides for the closure of static contact component and moving contact component 16 and guarantees that electricity connects
Touch reliable contact pressure and excess of stroke elastic force.
In switch off state, operation handle 5 is rotated clockwise, under the driving of linking axes 3, so that 6 inverse time of lever
Needle rotation, and contact supporting 18 is pulled to move upwards, so that moving contact component 16 be driven to contact with static contact component, close circuit
It closes.After closing of circuit, moving contact rack 18 continues up and compression spring leaf 17, and excess of stroke structure guarantees moving contact component 16
There are enough pressure and 15 reliable contacts of static contact component.
In switch closed condition, when overload or short circuit occur for route, automatic disconnect is switched.Specifically: it is double when overload
Sheet metal 25 crosses thermal flexure, pushes 2 top of release lever so that it is rotated clockwise；When short-circuit, coil 9 generates powerful magnetic field,
Dynamic iron core inside core assembly 10 moves downward, and the magnetic tripping push rod 22 being fixedly connected with dynamic iron core pushes release lever 2 to the left,
So that release lever 2 rotates clockwise.As release lever 2 rotates clockwise, locking-bar 8 is separated with release lever 2, and locking-bar 8 loses
Supporting surface, the rotation counterclockwise (in the case where breaker is vertically-mounted) under self gravitation effect.Main buckle 20 rebounds simultaneously
It pushes moving contact rack 18 to move downward, drives moving contact component 16 to separate with static contact component 15, so that circuit be made to disconnect.?
During this, the spinning reduction counterclockwise under the action of handle return spring 4 of operation handle 5.
As shown in fig. 6, when generating fault current, being moved, the incision position between static contact generates electricity under switch off state
Arc 31,31 current direction of electric arc of two switch incision positions is on the contrary, under the action of the self-excitation magnetic field of two sections of arc currents, and two sections
The arc column of electric arc is mutually exclusive, and each electric arc is made to rapidly enter neighbouring arc-chutes.
The cambered surface of leading that moving contact component 16 and static contact component 15 extend to arc-chutes makes electric arc 31 along inclined-plane to arc-chutes
Interior movement, has elongated electric arc, is conducive to blow-out.The special designing of static contact component 15 guarantees the failure electricity on static contact component 15
The fault current direction on direction and moving contact component 16 is flowed as shown in Figure 5 always on the contrary, the conductive arm 32,33 of static contact component
Electrodynamic repulsion force is generated between the touching bridge 26 of moving contact component, and moving contact component 16 is pushed quickly to separate with static contact component 15,
Circuit is cut-off in realization.Conductive arm 32,33 and touching bridge 26 are parallel to each other, and maximize electrodynamic repulsion force.
The main distinction of the present invention and the prior art is the following:
1. miniature circuit breaker uses bridge-type double-fracture construction of switch, two arc-chutes are configured.
2. the touching bridge of moving contact component 16 is parallel with the conductive arm of contact assembly 15, moving contact component is vertically transported
Dynamic, moving contact component 16 and static contact component 15 are provided with inclined-plane and lead arc structure.
3. since the current direction of two electric arc is on the contrary, its self-excitation magnetic field is mutually exclusive, by the phase of two electric arc arc columns
Two electric arc arc columns are pushed into adjacent arc-chutes blow-out by mutual repulsive force, realize that direct current disjunction is nonpolarity.
4. when making parallel conductive arm and touching bridge disjunction fault current, being generated due to the special designing of dynamic and static contact assembly
Maximum electrodynamic repulsion force, so that switch quick separating, cut-offs circuit.
5. the mechanical structure of operating mechanism.
6. using the contact over travel mechanism that moving contact component 16, spring leaf 17 and moving contact rack 18 form.
The foregoing descriptions are merely the embodiment using this origination techniques content, any those skilled in the art use this wound
Make done modifications and changes, all belong to the scope of the patents of this creation opinion, and is not limited to those disclosed embodiments.
Claims (9)
1. a kind of nonpolarity miniature circuit breaker, including operating mechanism, static contact component, moving contact component and arc-chutes, moving contact
Component is oppositely arranged with static contact component, and operating mechanism connection moving contact component simultaneously controls its movement, it is characterised in that: described
Arc-chutes include left arc-chutes and right arc-chutes, and the dynamic and static contact assembly is located between two arc-chutes and abuts two
Arc-chutes, static contact component include left static contact component and right static contact component, left static contact component and right static contact component
Current direction is identical and opposite with the current direction on moving contact component；Operating mechanism control moving contact component simultaneously with left stationary contact
Head assembly and the contact of right static contact component or separation, to realize closing lock or opening a sluice gate for breaker；When cut-offfing circuit, static contact group
The electrodynamic repulsion force that part and moving contact component generate pushes moving contact component quickly to leave static contact component, left and right static contact component
The electric arc formed between moving contact component carries out blow-out by two arc-chutes respectively.
2. nonpolarity miniature circuit breaker according to claim 1, it is characterised in that: the left and right static contact component point
Cambered surface is not led towards corresponding arc-chutes extension one is inclined, moving contact component both ends correspond to and lead arc on left and right static contact component
Face respectively extends an inclined cambered surface of leading into left and right arc-chutes.
3. nonpolarity miniature circuit breaker according to claim 1, it is characterised in that: the moving contact component includes a touching
Bridge, the left static contact component and right static contact component are equipped with one section of conductive arm for being parallel to the touching bridge, two conductive arms
On current direction it is identical and with touching bridge on current direction it is opposite.
4. nonpolarity miniature circuit breaker according to claim 3, it is characterised in that: the left and right static contact component is led
It is respectively provided with a stationary contact against neighbouring arc-chutes in electric arm, stationary contact face touches bridge, touches opposite two stationary contacts on bridge and sets
There are two movable contact, the contact or separation of dynamic and static contact are realized the closure of circuit or are cut-off.
5. nonpolarity miniature circuit breaker according to claim 4, it is characterised in that: the touching bridge deviates from the one side of movable contact
On be fixed with a spring leaf, the stress point at the spring leaf both ends is located at or below described two movable contact.
6. nonpolarity miniature circuit breaker according to claim 5, it is characterised in that: the operating mechanism includes that connection is dynamic
The moving contact rack of contact assembly, moving contact rack between left and right static contact component, moving contact rack up and down slide to
Moving contact component is driven to contact or separate with static contact component.
7. nonpolarity miniature circuit breaker according to claim 6, it is characterised in that: the moving contact component, spring leaf
Excess of stroke structure is formed with moving contact rack, moving contact rack moves up and moving contact component is driven to contact with left and right static contact component
Afterwards, continue to move up moving contact rack, moving contact rack compression spring leaf, spring leaf provides for the closure of dynamic and static contact assembly can
The contact pressure leaned on.
8. nonpolarity miniature circuit breaker according to claim 5, it is characterised in that: the left and right arc-chutes pass through one
Run-on tab connection, is equipped with a power spring, during moving contact component moves up and down, the conduction bullet between run-on tab and spring leaf
Spring both ends abut run-on tab and spring leaf respectively always.
9. nonpolarity miniature circuit breaker according to claim 5, it is characterised in that: the moving contact rack is equipped with one
The main buckle placed vertically, touches bridge and spring leaf is placed through moving contact rack end, when dynamic and static contact assembly is closed, main buckle
Energy storage elastic force needed for compressing and being stored as driving moving contact and static contact disjunction.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811286405.0A CN109036994A (en) | 2018-10-31 | 2018-10-31 | Nonpolarity miniature circuit breaker |
| CN201910051590.3A CN109473324A (en) | 2018-10-31 | 2019-01-21 | Nonpolarity low-voltage circuit breaker |
| PCT/CN2019/074046 WO2020087797A1 (en) | 2018-10-31 | 2019-01-31 | Non-polarized low-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811286405.0A CN109036994A (en) | 2018-10-31 | 2018-10-31 | Nonpolarity miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109036994A true CN109036994A (en) | 2018-12-18 |
Family
ID=64614605
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811286405.0A Pending CN109036994A (en) | 2018-10-31 | 2018-10-31 | Nonpolarity miniature circuit breaker |
| CN201910051590.3A Pending CN109473324A (en) | 2018-10-31 | 2019-01-21 | Nonpolarity low-voltage circuit breaker |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910051590.3A Pending CN109473324A (en) | 2018-10-31 | 2019-01-21 | Nonpolarity low-voltage circuit breaker |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN109036994A (en) |
| WO (1) | WO2020087797A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110416035A (en) * | 2019-08-26 | 2019-11-05 | 厦门安达兴电气集团有限公司 | A kind of AC/DC universal plastic casing breaker |
| WO2020087797A1 (en) * | 2018-10-31 | 2020-05-07 | 厦门安达兴电气集团有限公司 | Non-polarized low-voltage circuit breaker |
| CN114783844A (en) * | 2022-06-22 | 2022-07-22 | 江苏凯隆电器有限公司 | Manual operation mechanism of permanent magnet type molded case circuit breaker |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110033999A (en) * | 2019-04-19 | 2019-07-19 | 宁夏力成电气集团有限公司 | A kind of miniature circuit breaker and magnetic yoke mechanism |
| CN114649153A (en) * | 2020-12-21 | 2022-06-21 | 天津首瑞智能电气有限公司 | Switch |
| CN113937682A (en) * | 2021-11-08 | 2022-01-14 | 国网山东省电力公司临沂供电公司 | Transposition error live-line defect eliminating tool for cross interconnection box |
| CN114582665B (en) * | 2022-01-29 | 2024-03-12 | 上海京硅智能技术有限公司 | Contact pole of isolating switch |
| CN117174546B (en) * | 2023-10-24 | 2024-05-03 | 河北宝凯电气股份有限公司 | Circuit breaker and method of contact arc extinguishing system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2242766A1 (en) * | 1973-08-30 | 1975-03-28 | Merlin Gerin | Electric circuit breaker - has double fixed and moving contacts in series and double arc repulsion |
| CN2308162Y (en) * | 1995-12-04 | 1999-02-17 | 机械工业部上海电器科学研究所 | Combined modular switch electrical equipment with control and protection functions |
| JP4360013B2 (en) * | 2000-06-27 | 2009-11-11 | 三菱電機株式会社 | Circuit breaker |
| CN2472341Y (en) * | 2001-03-26 | 2002-01-16 | 上海电器科学研究所 | Integrated controlling and protecting switch device |
| CN201655694U (en) * | 2009-09-21 | 2010-11-24 | 浙江中凯科技股份有限公司 | Contact system with short circuit protection function |
| EP2463876A1 (en) * | 2010-12-07 | 2012-06-13 | Eaton Industries GmbH | Switch with arcing chamber |
| CN103177884B (en) * | 2011-12-26 | 2016-09-14 | 上海电科电器科技有限公司 | The structure of contact terminal of low-voltage electrical apparatus |
| CN109036994A (en) * | 2018-10-31 | 2018-12-18 | 厦门安达兴电气集团有限公司 | Nonpolarity miniature circuit breaker |
-
2018
- 2018-10-31 CN CN201811286405.0A patent/CN109036994A/en active Pending
-
2019
- 2019-01-21 CN CN201910051590.3A patent/CN109473324A/en active Pending
- 2019-01-31 WO PCT/CN2019/074046 patent/WO2020087797A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020087797A1 (en) * | 2018-10-31 | 2020-05-07 | 厦门安达兴电气集团有限公司 | Non-polarized low-voltage circuit breaker |
| CN110416035A (en) * | 2019-08-26 | 2019-11-05 | 厦门安达兴电气集团有限公司 | A kind of AC/DC universal plastic casing breaker |
| CN114783844A (en) * | 2022-06-22 | 2022-07-22 | 江苏凯隆电器有限公司 | Manual operation mechanism of permanent magnet type molded case circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020087797A1 (en) | 2020-05-07 |
| CN109473324A (en) | 2019-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109036994A (en) | Nonpolarity miniature circuit breaker | |
| CN100517538C (en) | Current-limiting arc-control device of medium-voltage large current DC circuit breaker | |
| CN110896012A (en) | Double-break vacuum circuit breaker | |
| CN107359068A (en) | A kind of breaker of plastic casing with compound arc extinction performance | |
| CN110896005B (en) | Vacuum circuit breaker signal feedback mechanism | |
| CN102751116B (en) | Quick electromagnetic repulsion mechanism based on fault current energy and change rate and application of quick electromagnetic repulsion mechanism | |
| CN113270291A (en) | Shock-resistant quick vacuum switch | |
| CN104681371A (en) | Variable rotating shaft contact structure for direct current circuit breaker | |
| CN202443906U (en) | Quick permanent-magnetic double-power selector switch used in low-voltage distribution environment | |
| CN109494132A (en) | A kind of double-contact breaker of plastic casing | |
| CN108878209A (en) | A kind of miniature circuit breaker of internally provided with vacuum contact head mechanism | |
| CN210349693U (en) | Vacuum circuit breaker | |
| CN103000465B (en) | Contact system of novel high-capacity medium-voltage direct current breaker | |
| CN206098278U (en) | A double break mouth formula vacuum circuit breaker for 66KV | |
| CN209374379U (en) | Nonpolarity low-voltage circuit breaker | |
| CN107342198A (en) | A kind of breaker of plastic casing with powerful disjunction short circuit current ability | |
| EP3046128B1 (en) | Shunt breaking system | |
| CN207134290U (en) | A kind of single-phase Fast Speed Vacuum Circuit Breaker | |
| CN109427504B (en) | Electromagnetic type rebound prevention device and circuit breaker with function of adjusting opening speed | |
| CN101615534B (en) | Permanent magnet opening and closing type DC intelligent circuit breaker | |
| CN100435253C (en) | A high-speed double-break magnetic blowing middle-pressure great electric current direct current current-limiting circuit breaker | |
| CN114783816A (en) | Circuit breaker | |
| CN102915894B (en) | Arc-blowing device of direct-current circuit breaker | |
| CN115104168A (en) | Switching device | |
| CN2747701Y (en) | SF6 arc-extinguishing chamber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181218 |
|
| WD01 | Invention patent application deemed withdrawn after publication |