CN209298052U - A kind of multiloop breaker - Google Patents
A kind of multiloop breaker Download PDFInfo
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- CN209298052U CN209298052U CN201821745344.5U CN201821745344U CN209298052U CN 209298052 U CN209298052 U CN 209298052U CN 201821745344 U CN201821745344 U CN 201821745344U CN 209298052 U CN209298052 U CN 209298052U
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Abstract
A kind of multiloop breaker, including input terminal, outlet terminal, electromagnetic mechanism, stationary contact, movable contact and hot release mechanism；The electromagnetic mechanism is equipped with coil and dynamic iron core, and the coil one end and input terminal are electrically connected, and dynamic iron core is located in coil and can move along its axis；The stationary contact and coil are electrically connected, and the movable contact and hot release mechanism are electrically connected；It further include interlocking bar and at least one first auxiliary current circuit, the first auxiliary current circuit and the electromagnetic mechanism and company；The interlocking bar is rotatably setting, and one end and dynamic iron core one end are linked, the other end and the first auxiliary current circuit abutting contact；When short circuit, dynamic iron core is mobile, drives interlocking bar rotation so that the first auxiliary current circuit first disconnects, then stationary contact and movable contact separate.The utility model improves the short circuit breaking capacity of breaker while capable of improving breaker rated current.
Description
Technical field
The utility model relates to field of circuit breakers, especially a kind of multiloop breaker.
Background technique
Electromagnetic release mechanism is the critical function component of miniature circuit breaker, mainly by coil, dynamic iron core and static iron core
Equal components composition.Dynamic iron core and static iron core are located at coil inner cavity, under running current, have one between dynamic iron core and static iron core
Fixed gap, dynamic iron core is mobile to static iron core direction under the strong magnetic field action that coil generates under short circuit current, and gap is eliminated,
The tripping mechanism of contact mechanism of circuit breaker is pushed to make contact separating brake by push rod during dynamic iron core is mobile.
The number of turns of usual electromagnetic mechanism coil is more, and the magnetic field generated under short circuit current is stronger, dynamic iron core driving
The opening velocity of contact mechanism is faster, and the short circuit breaking capacity of breaker is stronger, so from circuit breaker short circuit disjunction is promoted
The number of turns that coil is desirable to from the point of view of ability is The more the better.But increase in the limited space interior loop the number of turns of breaker
, line footpath can only just reduce, and the internal resistance of such breaker increases, and temperature rise just increases.So the short circuit breaking of breaker
The requirement of ability and temperature rise model to electromagnetic mechanism coil is conflicting.
Currently, miniature circuit breaker rated current in the market mostly in 63A hereinafter, as the improvement of people's living standards,
All kinds of high-power electric appliances enter Common People one after another, and home-use electricity becomes increasing therewith, to the nominal operation electricity of breaker
Stream also proposed increasingly higher demands.Since the outline overall and installing dimensions of breaker is by various existing standards or distribution box
Limitation, arbitrarily can not increase or change, the miniature circuit breaker of big specification can only be designed in existing inner space.
Current high current miniature circuit breaker, mostly the coil turn of electromagnetic mechanism is reduced to 1 circle or so, and increase line
The mode of astragal material sectional area increases conductive capability, and thermal tripping mechanism mostly uses the design method of two-path circuit to lead to increase
Electric sectional area.Such design increases the conductive capability of miniature circuit breaker to a certain extent, solves heavy current breaker
Problem of temperature rise.But the coil turn of electromagnetic mechanism is reduced, excitation reduced capability, reduces the short circuit breaking energy of breaker
Power.The miniature circuit breaker product of 18mm width currently on the market can only mostly accomplish the rated current of 100A, the disjunction energy of 6kA
Power.
Utility model content
The main purpose of the utility model is to overcome drawbacks described above in the prior art, propose a kind of raising breaker volume
Constant current, and the multiloop breaker of breaker breaking capacity is promoted simultaneously.
The utility model adopts the following technical solution:
A kind of multiloop breaker, including input terminal, outlet terminal, electromagnetic mechanism, stationary contact, movable contact and hot off line
Structure；The electromagnetic mechanism is equipped with coil and dynamic iron core, and the coil one end and input terminal are electrically connected, dynamic iron core be located at coil it is interior and
It can be moved along its axis；The stationary contact and coil are electrically connected, and the movable contact and hot release mechanism are electrically connected；It is characterized by:
It further include interlocking bar and at least one first auxiliary current circuit, the first auxiliary current circuit and the electromagnetic mechanism and company；It should
Interlocking bar is rotatably setting, and one end and dynamic iron core one end are linked, the other end and the first auxiliary current circuit abutting contact；When
When short-circuit, dynamic iron core is mobile, drives interlocking bar to rotate so that the first auxiliary current circuit first disconnects, then stationary contact and movable contact
It separates.
Preferably, wherein first auxiliary current circuit further includes static contact panel and elastic component；The interlocking bar is another
End is equipped with pushing part；The stationary contact is located on static contact panel and can be with movable contact conductive contact, static contact panel one end and the coil one
End is electrically connected and mutually fixes with the dynamic iron core other end, the other end and pushing part abutting contact；The elastic component one end is fixed,
The other end peaks at the static contact panel other end.
Preferably, the static contact panel is equipped with protrusion at the pushing part, when protrusion is contacted with the input terminal,
Connect first auxiliary current circuit.
Preferably, the static contact panel is equipped with linkage section, bending section and striking section；The linkage section electrically connects with the coil
It connects；The bending section is connected between linkage section and striking section and is equipped with the stationary contact；The striking section is located at below electromagnetic mechanism
And one end and the pushing part abutting contact.
Preferably, the input terminal is between the electromagnetic mechanism and the static contact panel.
Preferably, the hot release mechanism includes bimetal leaf and dynamic touch panel；The dynamic touch panel is rotatably setting, and one side is set
There is the movable contact, the other side is electrically connected by connecting line and bimetal leaf side, and the bimetal leaf other side passes through connecting line
It is electrically connected with the outlet terminal.
Preferably, the hot release mechanism further includes at least one second auxiliary current circuit, the second auxiliary current circuit with
The bimetal leaf and company；When short-circuit, the dynamic touch panel rotation, the second auxiliary current circuit is first disconnected, then the stationary contact
It is separated with the movable contact.
Preferably, second auxiliary current circuit includes auxiliary touch panel, and one end and the outlet terminal are electrically connected；Separately
One end is equipped with the first auxiliary contact, and the dynamic touch panel is correspondingly provided with the second auxiliary contact, when the first auxiliary contact and the second auxiliary contact conductive
When contact, second auxiliary current circuit is connected.
It preferably, further include having handle, which is connected with the dynamic touch panel.
It preferably, further include having arc-control device, which is located at below the static contact panel and is equipped with run-on tab, this draws
Arc plate and the bimetal leaf are conductively connected.
From the above description of the utility model, it can be seen, compared with prior art, the utility model has following beneficial to effect
Fruit:
1, the breaker of the utility model increases at least one first auxiliary current circuit at electromagnetic mechanism end, breaker
Internal resistance is constant, i.e., temperature rise model does not change, when short-circuit, control the first auxiliary current circuit by interlocking bar and first disconnects, this
The electromagnetic mechanism of sample multichannel becomes single channel electromagnetic mechanism, and multiturn magnet excitation coil can generate stronger electromagnetic force, can drive
Stationary contact is quickly disconnected with movable contact, greatly promotes the breaking speed of breaker, reinforces the extinguishing of electric arc, promotes breaker point
Cutting capacity.
2, the breaker of the utility model is resisted against static contact panel end by interlocking bar, and elastic component is cooperated to act on, so that
Protrusion with input terminal conductive contact or separate, to be switched on or switched off the first auxiliary current circuit, clever structure, realize it is easy.
3, static contact panel is divided into linkage section, bending section and striking section, and and end of incoming cables by the breaker of the utility model
Son, dynamic iron core connection cooperation, constitute the first auxiliary current circuit, and rational deployment, small in size, assembly are easy.
4, the breaker of the utility model can also increase at least one second auxiliary current circuit at hot release mechanism end, so that
The internal resistance of breaker is significantly reduced, and can guarantee that temperature rise model is met the requirements of the standard after rated current is promoted to 125A；Short circuit
When, two auxiliary current circuits first disconnect, and breaker becomes single-path architecture, and then stationary contact and movable contact separate, short circuit breaking
Ability can be also consistent with single channel breaker, i.e., the internal resistance that this design had both reduced breaker enables rated current to be promoted
To 125A, and the short circuit breaking capacity of breaker can be made not reduce, and increase being consistent before these auxiliary current circuits.
5, the utility model embodiment one be suitable for 63A and breaker below, short circuit breaking capacity be substantially improved to
15kA or more is even up to 50kA；Embodiment two be suitable for 63A or more breaker, such as rated current be 80A and with
On high current miniature circuit breaker, maximum rated current can be promoted to 125A, and short circuit breaking capacity can be promoted to 10kA or more.
Detailed description of the invention
Fig. 1 is existing single channel breaker schematic diagram；
Fig. 2 is existing multi-circuit breaker；
Fig. 3 is the schematic illustration of the utility model embodiment one；
Fig. 4 is the structure chart (closed state) of embodiment one；
Fig. 5 is the structure chart (off-state) of embodiment one；
Fig. 6 is the schematic illustration of the utility model embodiment two；
Fig. 7 is the structure chart (closed state) of embodiment two；
Fig. 8 is the structure chart (off-state) of embodiment three；
Wherein: 10, shell, 20, wire frame, 21, input terminal, 30, outlet terminal, 40, electromagnetic mechanism, 41, dynamic iron core,
41a, detent slot, 42, coil, 43, interlocking bar, 44, pushing part, 45, static contact panel, 46, elastic component, 47, linkage section, 48, bending
Section, 49, striking section, 49a, protrusion, 50, stationary contact, 60, movable contact, 70, hot release mechanism, 71, bimetal leaf, 72, dynamic touch panel,
73, connecting line, 74, auxiliary touch panel, the 75, first auxiliary contact, the 76, second auxiliary contact, 80, handle, 90, arc-control device, 91, striking
Plate.
Specific embodiment
Below by way of specific embodiment, the utility model will be further described.
Referring to Fig. 3 to Fig. 5, a kind of multiloop breaker, including shell 10, input terminal 21, outlet terminal 30, electromagnetic motor
The components such as structure 40, stationary contact 50, movable contact 60, hot release mechanism 70, handle 80.The shell 10 is equipped with accommodating cavity, the two of shell
Side is respectively equipped with wire frame 20, and input terminal 21 and outlet terminal 30 are arranged in respectively on wire frame 20.It is the electromagnetic mechanism 40, quiet
Contact 50, movable contact 60, hot release mechanism 70 are between two wire frames 20.Handle 80 is located at 10 medium position of shell, one end
It can be connected in insertion shell 10 and by releasing structure (existing structure is not shown in the figure) with movable contact 60 and dynamic iron core 41, be led to
The movement of control handle 80 is crossed, releasing structure links and movable contact 60 and dynamic iron core 41 is driven to act, so that movable contact 60 and stationary contact
50 conductive contacts of point or separation.
The electromagnetic mechanism 40 includes dynamic iron core 41, coil 42, spring, static iron core etc., which is set around dynamic iron core
On 41, dynamic iron core 41 can be moved under the action of coil magnetic field and spring along coil axis.42 one end input terminal 21 of coil
It is electrically connected.The stationary contact 50 and coil 41 are electrically connected, and the movable contact 60 and hot release mechanism 70 are electrically connected.
The electromagnetic mechanism 40 further includes interlocking bar 43 and at least one first auxiliary current circuit, the first auxiliary current circuit
With electromagnetic mechanism 40 and even.The interlocking bar 43 and shell 10 are to be rotatably connected and be equipped with shaft, 43 one end of interlocking bar and dynamic iron
Detent slot 41a is arranged at the end of dynamic iron core 41 in the linkage of 41 one end of core, and 43 end of interlocking bar is located in detent slot 41a.Interlocking bar
The other end is equipped with pushing part 44, has angle, the interlocking bar 43 and pushing part between the pushing part 44 and the main body of interlocking bar 43
44 be insulating element.The first auxiliary current circuit can be all the way, two-way it is even more, the quantity of pushing part 44 can be with
One auxiliary current circuit is corresponding.
Wherein one first auxiliary current circuit includes static contact panel 45 and elastic component 46, the static contact panel 45 be equipped with linkage section 47,
Bending section 48 and striking section 49.The linkage section 47 and 42 one end of coil are electrically connected.The bending section 48 is connected to 47 He of linkage section
Between striking section 49, it is located at electromagnetic mechanism 40 with respect to 60 side of movable contact, the outside of bending section 48 is equipped with stationary contact 50, this is quiet
It contact 50 can be with 60 conductive contact of movable contact.The striking section 49 is located at 21 lower section of input terminal, and its end is supported with pushing part 44
By contact.In striking section 49, protrusion 49a is equipped at pushing part 44, when protrusion 49a is contacted with input terminal 21, the
One auxiliary current circuit is connected.46 one end of elastic component is fixed, and the other end peaks at the 49 end bottom surface of striking section of static contact panel 45.
Hot release mechanism 70 includes bimetal leaf 71, dynamic touch panel 72 and connecting line 73 etc..The dynamic touch panel 72 is rotationally connected with
In shell 10, one side bottom end is equipped with movable contact 60, and the other side is electrically connected by connecting line 73 and 71 side of bimetal leaf, double
71 other side of sheet metal is electrically connected by connecting line 73 and outlet terminal 30.The bimetal leaf 71 is located at dynamic touch panel 72 and outlet
Between terminal 30, which is soft connecting line.
Overload protecting mechanism of the hot release mechanism 70 as breaker, when the current value of breaker is greater than amount electric current and occurs
When overload, bimetal leaf 71 is overheated and is bent, and when being bent to a certain extent, can be triggered dynamic touch panel 72 and be acted, tripping mechanism linkage,
First subsidiary loop can be disconnected first, disconnected the electric connection between movable contact 60 and stationary contact 50 later or first assisted back
Road disconnects, and simultaneously switches off the electric connection between movable contact 60 and stationary contact 50.
The utility model further includes having arc-control device 90, which is located at 45 lower section of static contact panel and is equipped with run-on tab
91, the run-on tab 91 and bimetal leaf 71 are conductively connected, and are cooperated with the striking section 49 of static contact panel 45 and realized arc extinguishing.
The utility model is suitable for 63A and breaker below, when normal work, stationary contact 50 on static contact panel 45 and dynamic
60 conductive contact of movable contact on touch panel 72, and protrusion 49a and 21 conductive contact of input terminal, the first auxiliary current circuit connects
It is logical.The internal resistance of this set, breaker is constant, i.e., temperature rise model does not change.
When a short circuit occurs, dynamic iron core 41 is mobile, pushes interlocking bar 43 and static contact panel 45, and pushing part 44 rotates and pushes quiet
Touch panel 45 separates raised 49a with input terminal 21, and the first auxiliary current circuit first disconnects, then stationary contact 50 and movable contact
60 separate, and the electromagnetic mechanism 40 of such multichannel becomes single channel electromagnetic mechanism, and multiturn magnet excitation coil can generate stronger electricity
Magnetic force, driving stationary contact 50 and movable contact 60 quickly disconnect, and greatly promote the breaking speed of breaker, reinforce putting out for electric arc
It goes out, promotes breaker breaking capacity.
Embodiment two
Referring to Fig. 6 to Fig. 8, a kind of multiloop breaker, primary structure is identical as embodiment two, and difference is: heat is de-
Mechanism 70 further includes at least one second auxiliary current circuit, the second auxiliary current circuit and bimetal leaf 71 and connects, and second is auxiliary
Help the quantity of current loop can be all the way, two-way it is even more.Second auxiliary current circuit includes being rotationally connected with shell
Auxiliary touch panel 74 in 10, one end are electrically connected by connecting line 73 and outlet terminal 30, and the other end is equipped with the first auxiliary contact 75,
The other side top of dynamic touch panel 72 is correspondingly provided with the second auxiliary contact 76, when the first auxiliary contact 75 and the second auxiliary 76 conduction of contact connect
Touching, can connect the second auxiliary current circuit.
The present embodiment is applied in rated current in the circuit breaker design of 63A or more, when normal work, on static contact panel 45
60 conductive contact of movable contact on stationary contact 50 and dynamic touch panel 72, and protrusion 49a and 21 conductive contact of input terminal, the first auxiliary
Current loop is connected；Meanwhile first auxiliary contact 75 and the second auxiliary 76 conductive contact of contact, the second auxiliary current circuit is connected.This
Kind of setting, the internal resistance of breaker is significantly reduced, and can guarantee after rated current is promoted to 125A that temperature rise model complies with standard and wants
It asks.
When the current value of breaker is greater than amount electric current and overloads, bimetal leaf 71 is overheated and is bent, and is bent to
When to a certain degree, dynamic touch panel 72 can be triggered and acted, tripping mechanism linkage, the first subsidiary loop and the second subsidiary loop first disconnect,
The electric connection or the first subsidiary loop and the second subsidiary loop disconnected between movable contact 60 and stationary contact 50 later disconnects,
Simultaneously switch off the electric connection between movable contact 60 and stationary contact 50.
When short-circuit, dynamic iron core 41 is mobile, pushes interlocking bar 43 and static contact panel 45, and pushing part 44 rotates and pushes static contact panel 45
So that protrusion 49a is separated with input terminal 21, static contact panel 45 pushes dynamic touch panel 72 to rotate, the first auxiliary contact 75 and the second auxiliary contact
76 separation, i.e. the first auxiliary current circuit, the second auxiliary current circuit first disconnect, and then stationary contact 50 and movable contact 60 separate；
Or first, second auxiliary current circuit disconnect, while stationary contact 50 is also separated with movable contact 60.Two auxiliary current circuits disconnect
Afterwards, breaker becomes single-path architecture, and short circuit breaking capacity can be also consistent with single channel breaker, i.e., this design both reduced
The internal resistance of breaker enables the rated current to be promoted to 125A, and the short circuit breaking capacity of breaker can be made not reduce, with increasing
Being consistent before adding these auxiliary current circuits.
The above is only the specific embodiments of the present invention, but the design concept of the present invention is not limited thereto,
All non-essential modifications to the present invention made by this concept should belong to the row for invading scope of protection of the utility model
For.
Claims (10)
1. a kind of multiloop breaker, including input terminal, outlet terminal, electromagnetic mechanism, stationary contact, movable contact and hot off line
Structure；The electromagnetic mechanism is equipped with coil and dynamic iron core, and the coil one end and input terminal are electrically connected, dynamic iron core be located at coil it is interior and
It can be moved along its axis；The stationary contact and coil are electrically connected, and the movable contact and hot release mechanism are electrically connected；It is characterized by:
It further include interlocking bar and at least one first auxiliary current circuit, the first auxiliary current circuit and the electromagnetic mechanism and company；It should
Interlocking bar is rotatably setting, and one end and dynamic iron core one end are linked, the other end and the first auxiliary current circuit abutting contact；When
When short-circuit, dynamic iron core is mobile, drives interlocking bar to rotate so that the first auxiliary current circuit first disconnects, then stationary contact and movable contact
It separates.
2. a kind of multiloop breaker as described in claim 1, it is characterised in that: wherein first auxiliary current circuit
It further include static contact panel and elastic component；The interlocking bar other end is equipped with pushing part；The stationary contact be located on static contact panel and can with it is dynamic
Contact conductive contact, static contact panel one end is electrically connected with described coil one end and mutually fixes with the dynamic iron core other end, another
End and pushing part abutting contact；The elastic component one end is fixed, and the other end peaks at the static contact panel other end.
3. a kind of multiloop breaker as claimed in claim 2, it is characterised in that: the static contact panel is at the pushing part
First auxiliary current circuit is connected when protrusion is contacted with the input terminal equipped with protrusion.
4. a kind of multiloop breaker as claimed in claim 2, it is characterised in that: the static contact panel is equipped with linkage section, bending
Section and striking section；The linkage section and the coil are electrically connected；The bending section is connected between linkage section and striking section and is equipped with
The stationary contact；The striking section is located at below electromagnetic mechanism and one end and the pushing part abutting contact.
5. a kind of multiloop breaker as claimed in claim 2, it is characterised in that: the input terminal is located at the electromagnetic motor
Between structure and the static contact panel.
6. a kind of multiloop breaker as claimed in claim 2, it is characterised in that: the hot release mechanism include bimetal leaf and
Dynamic touch panel；The dynamic touch panel is rotatably setting, and one side is equipped with the movable contact, and the other side passes through connecting line and bimetal leaf one
Side is electrically connected, and the bimetal leaf other side is electrically connected by connecting line and the outlet terminal.
7. a kind of multiloop breaker as claimed in claim 6, it is characterised in that: the hot release mechanism further includes at least 1 the
Two auxiliary current circuits, the second auxiliary current circuit and the bimetal leaf and company；When short-circuit, the dynamic touch panel rotation, the
Two auxiliary current circuits first disconnect, and then the stationary contact and the movable contact separate.
8. a kind of multiloop breaker as claimed in claim 7, it is characterised in that: second auxiliary current circuit includes auxiliary
Touch panel, one end and the outlet terminal are electrically connected；The other end is equipped with the first auxiliary contact, and the dynamic touch panel is correspondingly provided with second
Second auxiliary current circuit is connected when the first auxiliary contact is contacted with the second auxiliary contact conductive in auxiliary contact.
9. a kind of multiloop breaker as claimed in claim 6, it is characterised in that: further include having handle, the handle with it is described
Dynamic touch panel is connected.
10. a kind of multiloop breaker as claimed in claim 6, it is characterised in that: it further include having arc-control device, the interrupter cartridge
It is conductively connected setting in below the static contact panel and equipped with run-on tab, the run-on tab and the bimetal leaf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821745344.5U CN209298052U (en) | 2018-10-26 | 2018-10-26 | A kind of multiloop breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821745344.5U CN209298052U (en) | 2018-10-26 | 2018-10-26 | A kind of multiloop breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209298052U true CN209298052U (en) | 2019-08-23 |
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ID=67646922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821745344.5U Active CN209298052U (en) | 2018-10-26 | 2018-10-26 | A kind of multiloop breaker |
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| Country | Link |
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| CN (1) | CN209298052U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109243936A (en) * | 2018-10-26 | 2019-01-18 | 厦门国研科技有限公司 | A kind of multiloop breaker |
-
2018
- 2018-10-26 CN CN201821745344.5U patent/CN209298052U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109243936A (en) * | 2018-10-26 | 2019-01-18 | 厦门国研科技有限公司 | A kind of multiloop breaker |
| CN109243936B (en) * | 2018-10-26 | 2024-07-12 | 厦门国研科技有限公司 | Multi-loop circuit breaker |
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