CN106098485A - A kind of chopper - Google Patents
A kind of chopper Download PDFInfo
- Publication number
- CN106098485A CN106098485A CN201610633897.0A CN201610633897A CN106098485A CN 106098485 A CN106098485 A CN 106098485A CN 201610633897 A CN201610633897 A CN 201610633897A CN 106098485 A CN106098485 A CN 106098485A
- Authority
- CN
- China
- Prior art keywords
- contact
- static contact
- chopper
- terminals
- moving contact
- 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
- H01H71/10—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
-
- 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
- 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
- H01H9/38—Auxiliary contacts on to which the arc is transferred from the main contacts
-
- 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
- H01H9/42—Impedances connected with contacts
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention provides a kind of chopper, in making process, when described spanner is in first position, described moving contact compresses the first elastomeric element, and described time moving contact contacts with described static contact, and meanwhile, described active contact remains open with described main static contact；When described spanner is in second position, described moving contact compresses the first elastomeric element further, and described time moving contact keeps contacting with described static contact, and meanwhile, described active contact contacts with described main static contact；Connecting on second terminals and have conductive plate, actively contact and time moving contact are connected with described conductive plate by wire.The contact of this chopper take up room little, product cost is low, contact electrical wear is low, can realize the short circuit operation breaking capacity of more than 50kA on miniature circuit breaker, application of special occasions is brought great convenience by this.
Description
Technical field
The present invention relates to the technical field of IC-card seat, in particular to a kind of chopper.
Background technology
Chopper refers to close, carry and cut-off the electric current under normal loop condition, and can close, regulation time
The switching device of the interior electric current carrying and cut-offfing under abnormal loop condition (including short circuit condition).Chopper can be used to distribute electricity
Can, infrequently start asynchronous motor, to power circuit and motor etc. carry out protection, when they occur serious overloads or
Energy automatic shutdown circuit during the faults such as person is short-circuit and under-voltage, its function is equivalent to Fuse switch and crosses underheat relay etc.
Combination, and typically need not change parts after disjunction fault current, at present, obtain a wide range of applications.
But contact the moving contact connected in existing chopper with static contact and be single, thus cause circuit breaker electric power
Poor stability, and such structure arranges and makes the contact resistance of dynamic and static contact the biggest, thus causes chopper to hold
The breaking current being subject to is less.
Further, existing chopper, in order to reach breaking capacity, uses air-blowing, magnetic blow-out, raising contact electric clearance, leads to
The methods such as road blocks.The usual contact space of product of above method design is big, arc-chute volume is big.Although open circuit breaking capacity
By force, but volume is excessive.The most common miniature circuit breaker breaking capacity is about 6kA, and current technical point cutting capacity is the highest to be only reached
15kA.For the extraordinary occasion of breaking capacity 35kA even more than 50kA, molded-case switch can only be used to replace miniature circuit breaker to make
With.But the width of molded-case switch, the most all beyond the scope of miniature circuit breaker.
Summary of the invention
In view of this, the technical problem to be solved in the present invention is to overcome the defect of prior art, it is provided that a kind of open circuit
Device, including Shell of circuit breaker；The two ends of described Shell of circuit breaker are equiped with the first terminals and the second terminals respectively；Described
First terminals are also connected with main static contact and time static contact；It is additionally provided with trip gear on described Shell of circuit breaker；Described de-mouth
Device deviates from one end connection of described Shell of circuit breaker moving contact；Described moving contact includes corresponding with described main static contact
Actively contact, and the secondary moving contact corresponding with described static contact；Between described first terminals and described main static contact
It is provided with electric magnet and moves iron core, and be set in the electromagnet coil that described electric magnet moves outside iron core；Described electric magnet moves iron core
One end is connected with described first terminals, and described electromagnet coil is connected with described main static contact；Described first terminals and institute
State and be provided with the first elastomeric element between time static contact；In making process, when described spanner is in first position, described moving contact
Compressing the first elastomeric element, described time moving contact contacts with described static contact, meanwhile, and described active contact and described main stationary contact
Head remains open；When described spanner is in second position, described moving contact compresses the first elastomeric element further, described secondary
Moving contact keeps contacting with described static contact, and meanwhile, described active contact contacts with described main static contact；Described static contact
Connect and have resistance；Connecting on the second described terminals and have conductive plate, described active contact and time moving contact are by wire and institute
State conductive plate to connect.
In some embodiments, described resistance is arranged between described first terminals and described static contact.
In some embodiments, described resistance is arranged between described main static contact and described static contact.
In some embodiments, it is additionally provided with arc-chutes in described Shell of circuit breaker；The extension of described arc-chutes is provided with
Run-on tab；Described arc-chutes include arc-extinguishing unit；Described moving contact is connected with described arc-extinguishing unit.
In some embodiments, described trip gear is the dynamic trip gear of heat.
In some embodiments, described heat move spanner that trip gear includes being sequentially connected with and linking, promote connecting rod, the
Two elastomeric elements, fine motion release lever, hot dropout draw ring.
In some embodiments, described first elastomeric element is spring.
In some embodiments, described second elastomeric element is spring.
In some embodiments, described arc-extinguishing unit is arc-chute.
In some embodiments, it is disconnected that the first described terminals and the second terminals all use hexagon socket head cap screw to be installed in
On the device housing of road.
The chopper that the present invention provides provides the benefit that:
Chopper disclosed by the invention, is connected with main static contact and time static contact.Trip gear in order to control actively contact with
The contact of main static contact and disconnection, and control contacting and disconnection of time moving contact and secondary static contact.And trip gear and
One elastomeric element matches, it is achieved that the asynchronous connection of two contacts, and asynchronous disconnecting circuit.During circuit ON, specifically
Step is, when described spanner is in first position, described moving contact compresses the first elastomeric element, described moving contact and institute
Stating time static contact contact, meanwhile, described active contact remains open with described main static contact；Described spanner is in second position
Time, described moving contact compresses the first elastomeric element further, and described time moving contact keeps contacting with described static contact, with
Time, described active contact contacts with described main static contact, completes to close a floodgate.When circuit disconnects, order is contrary: actively during contact disjunction
Secondary moving contact is still switched on, and when secondary moving contact disjunction, due to secondary moving contact circuitous resistance restriction effect, arc current is limited
A controlled scope, breaking capacity is improved.
In sum, it is strong that this chopper solution runs short circuit current breaking capacity, and solves problems with:
1, contact of breaker takes up room little；2, product cost is low；3, contact electrical wear is low.Can be on miniature circuit breaker
Realizing the short circuit operation breaking capacity of more than 50kA, application of special occasions is brought great convenience by this.
It follows that the structure that the present invention is special, it has above-mentioned many advantages and practical value, and at like product
In there are no similar method and publish or use and really belong to innovation, create handy and practical effect, thus the suitableeest
In practicality, and there is industrial value widely.
Accompanying drawing explanation
It should be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore it is not construed as model
The restriction enclosed, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to these
Accompanying drawing obtains the accompanying drawing that other are relevant.
Fig. 1 is the structural representation of chopper of the present invention；
Fig. 2 is the structural representation of chopper of the present invention；
Fig. 3 is the structural representation of chopper in making process；
Fig. 4 is the structural representation of chopper in making process；
Fig. 5 is making process structural representation of chopper when completing；
Fig. 6 is making process structural representation of chopper when completing；
Fig. 7 is the structural representation of chopper during the present invention one implements；
Fig. 8 is the circuit diagram of chopper of the present invention.
Drawing reference numeral illustrates:
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most from start to finish
Same or similar label represents same or similar element or has the element of same or like function.Below with reference to attached
The embodiment that figure describes is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention, it is to be understood that term " length ", " width ", " on ", D score, "front", "rear",
The orientation of the instruction such as "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward " or position relationship are for based on accompanying drawing institute
The orientation shown or position relationship, be for only for ease of and describe the present invention and simplify description rather than instruction or the dress of hint indication
Put or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that limit to the present invention
System.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In describing the invention, " multiple " are meant that two or more,
Unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " fixing " etc.
Term should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be that machinery connects
Connect, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, in can being two elements
The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to concrete feelings
Condition understands above-mentioned term concrete meaning in the present invention.
Embodiment 1
See Fig. 1 to Fig. 7, the present invention provides a kind of chopper, including Shell of circuit breaker 1；Described Shell of circuit breaker 1
Two ends be equiped with the first terminals 3 and the second terminals 12 respectively；The first described terminals 3 are also connected with main static contact 2 He
Secondary static contact 15；It is additionally provided with trip gear on described Shell of circuit breaker 1；Described de-mouth device deviates from described Shell of circuit breaker 1
One end connect have moving contact；Described moving contact includes the active contact 11 corresponding with described main static contact 2, and with described
The secondary moving contact 14 that secondary static contact 15 is corresponding；It is provided with electric magnet between described first terminals 3 and described main static contact 2 and moves ferrum
Core 4, and it is set in the electromagnet coil 5 that described electric magnet moves outside iron core 4；Described electric magnet moves one end of iron core 4 with described
First terminals 3 connect, and described electromagnet coil 5 is connected with described main static contact 2；Described first terminals 3 are quiet with described time
The first elastomeric element 17 it is provided with between contact 15；In making process, when described spanner 6 is in first position, described moving contact
11 compression the first elastomeric elements 17, described time moving contact 14 contacts with described static contact 15, meanwhile, described active contact 11 and
Described main static contact 2 remains open；When described spanner 6 is in second position, described time moving contact 14 compresses first further
Elastomeric element 17, described time moving contact 14 keeps contacting with described static contact 15, meanwhile, described active contact 11 and described master
Static contact 2 contacts；Described static contact 15 connects resistance 19；Connect on the second described terminals 12 and have conductive plate, described
Actively contact 11 and time moving contact 14 are connected with described conductive plate by wire 13.
Above-mentioned, chopper disclosed by the invention, it is connected with main static contact 2 and time static contact 15.So that two moving contacts
It is in the state of being connected in parallel, the most not only can effectively reduce the contact resistance 19 of dynamic and static contact so that it is bigger dividing can be born
Power-off stream, and double-contact contact structures are also greatly improved the electrodynamic stability of chopper.
It is to be appreciated that trip gear is in order to control contacting and disconnection of actively contact 11 and main static contact 2, and control
System time moving contact 14 contacts and disconnection with time static contact 15.And trip gear and the first elastomeric element 17 match, it is achieved
The asynchronous connection of two contacts, and asynchronous disconnecting circuit.During circuit ON, concretely comprising the following steps, spanner 6 is in first
When putting place, actively contact 11 remains open with described main static contact 2, and secondary moving contact 14 compresses the first elastomeric element 17, secondary dynamic
Contact 14 contacts with described static contact 15.Continuing to pull spanner 6, when pulling to second position, actively contact 11 is quiet with main
Contact 2 contacts, and secondary moving contact 14 compresses the first elastomeric element 17 further, and secondary moving contact 14 contacts with time static contact 15, completes
Close a floodgate.When circuit disconnects, order is contrary: actively during contact 11 disjunction, time moving contact 14 is still switched on, when the disjunction of secondary moving contact 14
Time, due to secondary moving contact 14 circuitous resistance 19 restriction effect, arc current is limited in a controlled scope, and breaking capacity obtains
To improving.
It is understood that this chopper contact of breaker takes up room little；Product cost is low；Contact electrical wear is low.Can
To realize the short circuit operation breaking capacity of more than 50kA on miniature circuit breaker, application of special occasions is brought great side by this
Just, there is industrial value widely.
Moved it is understood that the dropout mode of this trip gear both can be heat, it is also possible to be electromagnetism and compound dropout.
Furthermore, this chopper i.e. can apply in miniature air chopper, it is also possible to applies in breaker of plastic casing, with
And in other the most NM multiple choppers, repeat the most one by one.
Seeing Fig. 1, in the embodiment of the present invention 1, described resistance 19 is arranged at described first terminals 3 and described stationary contact
Between 15.
In the embodiment of the present invention 1, in described Shell of circuit breaker 1, it is additionally provided with arc-chutes；The extension of described arc-chutes sets
There is run-on tab 16；Described arc-chutes include arc-extinguishing unit 18；Described moving contact is connected with described arc-extinguishing unit 18.
In the embodiment of the present invention 1, described trip gear is the dynamic trip gear of heat.
In the embodiment of the present invention 1, described heat moves spanner 6, the promotion connecting rod that trip gear includes being sequentially connected with and linking
7, the second elastomeric element 8, fine motion release lever 9, hot dropout draw ring 10.
In the embodiment of the present invention 1, described first elastomeric element 17 is spring.
In the embodiment of the present invention 1, described second elastomeric element 8 is spring.
In the embodiment of the present invention 1, described arc-extinguishing unit 18 is arc-chute.
In the embodiment of the present invention 1, the first described terminals 3 and the second terminals 12 all use hexagon socket head cap screw to be fixedly mounted with
On Shell of circuit breaker 1.
Embodiment 2
See Fig. 7 to Fig. 8, the present invention provides a kind of chopper, including Shell of circuit breaker 1；Described Shell of circuit breaker 1
Two ends be equiped with the first terminals 3 and the second terminals 12 respectively；The first described terminals 3 are also connected with main static contact 2 He
Secondary static contact 15；It is additionally provided with trip gear on described Shell of circuit breaker 1；Described de-mouth device deviates from described Shell of circuit breaker 1
One end connect have moving contact；Described moving contact includes the active contact 11 corresponding with described main static contact 2, and with described
The secondary moving contact 14 that secondary static contact 15 is corresponding；It is provided with electric magnet between described first terminals 3 and described main static contact 2 and moves ferrum
Core 4, and it is set in the electromagnet coil 5 that described electric magnet moves outside iron core 4；Described electric magnet moves one end of iron core 4 with described
First terminals 3 connect, and described electromagnet coil 5 is connected with described main static contact 2；Described first terminals 3 are quiet with described time
The first elastomeric element 17 it is provided with between contact 15；In making process, when described spanner 6 is in first position, described moving contact
11 compression the first elastomeric elements 17, described time moving contact 14 contacts with described static contact 15, meanwhile, described active contact 11 and
Described main static contact 2 remains open；When described spanner 6 is in second position, described time moving contact 14 compresses first further
Elastomeric element 17, described time moving contact 14 keeps contacting with described static contact 15, meanwhile, described active contact 11 and described master
Static contact 2 contacts；Described static contact 15 connects resistance 19；Connect on the second described terminals 12 and have conductive plate, described
Actively contact 11 and time moving contact 14 are connected with described conductive plate by wire 13.
Above-mentioned, chopper disclosed by the invention, it is connected with main static contact 2 and time static contact 15.So that two moving contacts
It is in the state of being connected in parallel, the most not only can effectively reduce the contact resistance 19 of dynamic and static contact so that it is bigger dividing can be born
Power-off stream, and double-contact contact structures are also greatly improved the electrodynamic stability of chopper.
It is to be appreciated that trip gear is in order to control contacting and disconnection of actively contact 11 and main static contact 2, and control
System time moving contact 14 contacts and disconnection with time static contact 15.And trip gear and the first elastomeric element 17 match, it is achieved
The asynchronous connection of two contacts, and asynchronous disconnecting circuit.During circuit ON, concretely comprising the following steps, spanner 6 is in first
When putting place, actively contact 11 remains open with described main static contact 2, and secondary moving contact 14 compresses the first elastomeric element 17, secondary dynamic tactile
14 contact with described static contact 15.Continue to pull spanner 6, when pulling to second position, actively contact 11 and main stationary contact
2 contacts, secondary moving contact 14 compresses the first elastomeric element 17 further, and secondary moving contact 14 contacts with time static contact 15 holding, complete
Become to close a floodgate.When circuit disconnects, order is contrary: actively during contact 11 disjunction, time moving contact 14 is still switched on, when secondary moving contact 14 points
Time disconnected, due to secondary moving contact 14 circuitous resistance 19 restriction effect, arc current is limited in a controlled scope, breaking capacity
It is improved.
It is understood that this chopper contact of breaker takes up room little；Product cost is low；Contact electrical wear is low.Can
To realize the short circuit operation breaking capacity of more than 50kA on miniature circuit breaker, application of special occasions is brought great side by this
Just, there is industrial value widely.
Moved it is understood that the dropout mode of this trip gear both can be heat, it is also possible to be electromagnetism and compound dropout.
In the embodiment of the present invention 2, described resistance 19 is arranged between described main static contact 2 and described static contact 15.
Above-mentioned, it is to be understood that during breaking current, actively contact 11 disconnects in advance with main static contact 2, short circuit current quilt
Being limited in controlled scope (as resistance 19 is 0.3 Europe, within short circuit current is limited in 1kA), now disjunction runs and continues
Carrying out, separating occur in secondary moving contact 14 and time static contact 15, and short circuit current is through resistance 19, it is contemplated that short circuit current is by secondary static contact
15 are limited in predetermined value by resistance 19, and secondary moving contact 14 arc current is limited, and run breaking capacity and are greatly improved.
In the embodiment of the present invention 2, in described Shell of circuit breaker 1, it is additionally provided with arc-chutes；The extension of described arc-chutes sets
There is run-on tab 16；Described arc-chutes include arc-extinguishing unit 18；Described moving contact is connected with described arc-extinguishing unit 18.
In the embodiment of the present invention 2, described trip gear is the dynamic trip gear of heat.
In the embodiment of the present invention 2, described heat moves spanner 6, the promotion connecting rod that trip gear includes being sequentially connected with and linking
7, the second elastomeric element 8, fine motion release lever 9, hot dropout draw ring 10.
In the embodiment of the present invention 2, described first elastomeric element 17 is spring.
In the embodiment of the present invention 2, described second elastomeric element 8 is spring.
In the embodiment of the present invention 2, described arc-extinguishing unit 18 is arc-chute.
In the embodiment of the present invention 2, the first described terminals 3 and the second terminals 12 all use hexagon socket head cap screw to be fixedly mounted with
On Shell of circuit breaker 1.
Upper described only the preferred embodiments of the present invention, are not limited to the present invention, for the technology of this area
For personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, that is made any repaiies
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a chopper, it is characterised in that: include Shell of circuit breaker；The two ends of described Shell of circuit breaker are equiped with first respectively
Terminals and the second terminals；The first described terminals are also connected with main static contact and time static contact；On described Shell of circuit breaker
It is additionally provided with trip gear；Described trip gear deviates from one end connection of described Shell of circuit breaker moving contact；Described moving contact
Including the active contact corresponding with described main static contact, and the secondary moving contact corresponding with described static contact；Described
It is provided with electric magnet between one terminals and described main static contact and moves iron core, and be set in the electromagnetism that described electric magnet moves outside iron core
Iron coil；Described electric magnet moves one end of iron core and is connected with described first terminals, described electromagnet coil and described main stationary contact
Head connects；It is provided with the first elastomeric element between described first terminals and described static contact；In making process, spanner is in first
During position, described moving contact compresses the first elastomeric element, and described time moving contact contacts with described static contact, meanwhile, and institute
State actively contact to remain open with described main static contact；When described spanner is in second position, described time moving contact is further
Compressing the first elastomeric element, described time moving contact keeps contacting with described static contact, meanwhile, and described active contact and described master
Static contact contacts；Described static contact connects resistance；Connect on the second described terminals and have conductive plate, described active contact
Connected with described conductive plate by wire with secondary moving contact.
2. chopper as claimed in claim 1, it is characterised in that: it is secondary with described that described resistance is arranged at described first terminals
Between static contact.
3. chopper as claimed in claim 1, it is characterised in that: it is quiet with described time that described resistance is arranged at described main static contact
Between contact.
4. chopper as claimed in claim 1, it is characterised in that: it is additionally provided with arc-chutes in described Shell of circuit breaker；Institute
State arc-chutes extension and be provided with run-on tab；Described arc-chutes include arc-extinguishing unit；Described moving contact is connected with described arc-extinguishing unit.
5. chopper as claimed in claim 1, it is characterised in that: described trip gear is the dynamic trip gear of heat.
6. chopper as claimed in claim 5, it is characterised in that: described heat moves what trip gear included being sequentially connected with and link
Spanner, promotion connecting rod, the second elastomeric element, fine motion release lever, hot dropout draw ring.
7. chopper as claimed in claim 1, it is characterised in that: described first elastomeric element is spring.
8. chopper as claimed in claim 1, it is characterised in that: described second elastomeric element is spring.
9. chopper as claimed in claim 4, it is characterised in that: described arc-extinguishing unit is arc-chute.
Chopper the most according to claims 1 to 9, it is characterised in that: the first described terminals and the second terminals are equal
Hexagon socket head cap screw is used to be installed on Shell of circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610633897.0A CN106098485B (en) | 2016-08-04 | 2016-08-04 | A kind of breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610633897.0A CN106098485B (en) | 2016-08-04 | 2016-08-04 | A kind of breaker |
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| Publication Number | Publication Date |
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| CN106098485A true CN106098485A (en) | 2016-11-09 |
| CN106098485B CN106098485B (en) | 2018-03-20 |
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| CN201610633897.0A Active CN106098485B (en) | 2016-08-04 | 2016-08-04 | A kind of breaker |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107359069A (en) * | 2017-09-01 | 2017-11-17 | 希格玛电气(珠海)有限公司 | One kind switch resistance arcing contact device |
| CN108878209A (en) * | 2018-09-03 | 2018-11-23 | 厦门大恒科技有限公司 | A kind of miniature circuit breaker of internally provided with vacuum contact head mechanism |
| CN109545634A (en) * | 2019-01-09 | 2019-03-29 | 厦门大恒科技有限公司 | A kind of rotary contact mechanism and breaker |
| CN109616391A (en) * | 2019-01-18 | 2019-04-12 | 厦门大恒科技有限公司 | A kind of variable resistance contact mechanism and arc protection breaker |
| CN109659207A (en) * | 2019-02-27 | 2019-04-19 | 厦门大恒科技有限公司 | A kind of sudden change of resistivity formula contact apparatus and breaker |
| CN113725047A (en) * | 2020-05-26 | 2021-11-30 | 国网福建省电力有限公司 | Static contact and switch device |
| CN109616391B (en) * | 2019-01-18 | 2024-04-30 | 厦门大恒科技有限公司 | Resistance-variable contact mechanism and arc-proof circuit breaker |
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| DE2751452A1 (en) * | 1977-11-18 | 1979-05-23 | Bbc Brown Boveri & Cie | ELECTRIC SWITCHING DEVICE |
| CN1313996A (en) * | 1998-07-30 | 2001-09-19 | 西门子公司 | Device for short-circuit protection |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107359069A (en) * | 2017-09-01 | 2017-11-17 | 希格玛电气(珠海)有限公司 | One kind switch resistance arcing contact device |
| CN107359069B (en) * | 2017-09-01 | 2020-12-29 | 希格玛电气(珠海)有限公司 | Switch arc-resistant contact device |
| CN108878209A (en) * | 2018-09-03 | 2018-11-23 | 厦门大恒科技有限公司 | A kind of miniature circuit breaker of internally provided with vacuum contact head mechanism |
| CN109545634A (en) * | 2019-01-09 | 2019-03-29 | 厦门大恒科技有限公司 | A kind of rotary contact mechanism and breaker |
| CN109616391A (en) * | 2019-01-18 | 2019-04-12 | 厦门大恒科技有限公司 | A kind of variable resistance contact mechanism and arc protection breaker |
| CN109616391B (en) * | 2019-01-18 | 2024-04-30 | 厦门大恒科技有限公司 | Resistance-variable contact mechanism and arc-proof circuit breaker |
| CN109659207A (en) * | 2019-02-27 | 2019-04-19 | 厦门大恒科技有限公司 | A kind of sudden change of resistivity formula contact apparatus and breaker |
| CN109659207B (en) * | 2019-02-27 | 2024-04-02 | 厦门大恒科技有限公司 | Resistance abrupt contact device and circuit breaker |
| CN113725047A (en) * | 2020-05-26 | 2021-11-30 | 国网福建省电力有限公司 | Static contact and switch device |
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|---|---|
| CN106098485B (en) | 2018-03-20 |
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