CN106158546B - Breaker - Google Patents
Breaker Download PDFInfo
- Publication number
- CN106158546B CN106158546B CN201510138275.6A CN201510138275A CN106158546B CN 106158546 B CN106158546 B CN 106158546B CN 201510138275 A CN201510138275 A CN 201510138275A CN 106158546 B CN106158546 B CN 106158546B
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- CN
- China
- Prior art keywords
- breaker
- segment
- electric arc
- arc
- static 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
- 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
- H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Breakers (AREA)
Abstract
The present invention provides a kind of breakers comprising a pair of mutually matched moving contact and static contact；One arc-chutes；An and striking runway, it is prominent towards the end of the static contact, and the striking runway is divided by a first segment and a second segment by a protruding portion, wherein the free end of the first segment is close to the end of the moving contact, the arc-chutes are protruded into the free end of the second segment, and the distance of end of the protruding portion away from the static contact is less than the distance of end of other any point away from the static contact on the striking runway.Breaker of the invention quickly leaves voltage contact area after capable of forming electric arc, jumps on striking runway, reduces ablation of the electric arc to contact, while electric arc can also quickly be pushed to arc-chutes, effectively prevent the reverse movement of electric arc or restriking for voltage contact area.
Description
Technical field
The present invention relates to a kind of breaker more particularly to a kind of residual current action breakers or miniature circuit breaker.
Background technique
It is well known that breaker is a kind of electric current that can be closed, carry and cut-off under normal or abnormal loop condition
Switching device, since it has the multi-protective functions such as overload, short circuit, low-voltage protection, thus people all kinds of productions with
It is widely applied in life.
More typically, such as the residual current action breaker (RCBO) or small-sized with excess current protective function
For breaker (MCB) product, in disjunction short circuit current, after contact is unfolded into electric arc, can which quickly be jumped
Striking runway is gone to, and enters arc-chutes along striking runway, it is most important safely and reliably to extinguish electric arc to product.If
Electric arc cannot quickly jump to striking runway, continue to burn in voltage contact area, will cause to seriously affect to dynamic and static contact, even
Contact is burnt, loses product function thoroughly.At the same time, the spacing of its root position and striking runway after moving contact is opened
From affecting the speed that electric arc jumps.Lesser distance can guarantee more quickly to jump, but may cause electric arc and touching
Head region is restriked behind, arcing back phenomenon occurs, influences product interrupting performance.
To solve the above-mentioned problems, those skilled in the art need to research and develop a kind of novel breaker, so as to guarantee
It has preferable interrupting performance.
Summary of the invention
The object of the present invention is to provide a kind of breakers, and voltage contact area is quickly left after enabling to electric arc to be formed, and jump
It goes on striking runway, reduces ablation of the electric arc to contact.
It is also another object of the present invention to provide a kind of breakers, enable electric arc quickly to be pushed to arc-chutes, avoid
Electric arc inversely moves or voltage contact area is restriked.
The present invention provides a kind of breakers comprising a pair of mutually matched moving contact and static contact；One arc-chutes；
And a striking runway, the protruding portion with an end towards the static contact, the protruding portion is by the striking runway
It is divided into a first segment and a second segment, wherein the free end of the first segment is close to the end of the moving contact, the second segment
Free end protrude into the arc-chutes, the distance of end of the protruding portion away from the static contact is less than on the striking runway other
The distance of some end away from the static contact of meaning.Since striking runway uses the design with the contact tip short distance of moving contact to think
Road helps quickly to leave voltage contact area after electric arc is formed, jump on striking runway, reduces ablation of the electric arc to contact, together
When a comparatively ideal electric arc accumulation regions can also be formed between static contact and protruding point.
In another schematical embodiment of breaker, the distance of end of the protruding portion away from the static contact is not
Greater than the static contact and the moving contact in the off state at a distance from.Since the distance between electric arc and static contact gradually subtract
Small, the resistance after air ionization is gradually reduced, and when disjunction short circuit current, electric arc can easily reach static contact and dash forward
Electric arc accumulation regions are formed by between starting point.
It further include a current path with opening in another schematical embodiment of breaker, it is described
Opening is located remotely from the side of the arc-chutes.Since the current path constitutes the cyclic structure of a non-close, the electricity
The auxiliary magnetic field that flow path is formed can preferably push movement of the electric arc to arc-chutes, so that the interrupting performance of breaker
It is more stable.
In another schematical embodiment of breaker, the current path is formed by current strap, the electric current
The width of band is less than the radius of the circumcircle of the current path, facilitates current path and forms preferable auxiliary magnetic field, with more
Push electric arc mobile to arc-chutes well.
In another schematical embodiment of breaker, the current path further include: be connected to described
The first welding surface and the second welding surface on two ends of current strap, wherein first welding surface is for connecting the striking
The first segment of runway, second welding surface is for being flexible coupling to external conductor.
In another schematical embodiment of breaker, the gradient of first welding surface and the first segment
Free end gradient it is consistent.
In another schematical embodiment of breaker, further includes: an air-blowing plate is arranged in the electric current
The top in path, and the lower section of the striking runway is set.Since striking runway has the feature of bending, it is capable of forming one
The space of a relative closure is capable of forming the gas quickly flowed using the pressure difference of airflow field at bending position, helps to subtract
Delay and reverse movement of few electric arc in the region.
In another schematical embodiment of breaker, further includes: a detachable increasing magnetic sheet, setting
In the lower section of the striking runway, for generating auxiliary magnetic field；In breaker disconnection process, the static contact draws with described
The electric arc accumulation regions in horse-hof shape are formed between arc runway.By using non-enclosed current path and increase magnetic sheet, energy
Enough using its own electric current by when the magnetic field force that generates and enhanced as needed, bending position is left to electric arc and entered
Arc-chutes form impetus, further avoid electric arc in the delay in the region and reverse movement.
In another schematical embodiment of breaker, the increasing magnetic sheet is accommodated in the electric current at a predetermined interval
The inside in path, and electrical isolation is kept between the current path.
In another schematical embodiment of breaker, the outer profile for increasing magnetic sheet and the current path
Internal periphery is adapted.
In another schematical embodiment of breaker, the air-blowing plate is provided with multiple limit ribs, the limit
Position muscle is for fixing the increasing magnetic sheet.
In another schematical embodiment of breaker, the air-blowing plate is additionally provided at least one mounting post,
The mounting post is inserted into the corresponding mounting hole on the increasing magnetic sheet respectively.
In another schematical embodiment of breaker, one is formed after the electric arc conducting of the electric arc accumulation regions
Current loop, and electric arc passes sequentially through the static contact, the electric arc accumulation regions, the first segment of the striking runway and described
Current path.
In another schematical embodiment of breaker, the free end of the second segment is also connected with one and puts down
The third section inside the arc-chutes is protruded into, capablely to promote electric arc to extinguish rapidly.
Detailed description of the invention
Only illustratively description and explain the present invention for the following drawings, not delimit the scope of the invention.Wherein:
Fig. 1 is the partial structure diagram of breaker of the invention；
Fig. 2 is the part-structure decomposition diagram of breaker in Fig. 1；
Fig. 3 is the schematic diagram of current loop in breaker in Fig. 1.
Label declaration
10 moving contacts
20 static contacts
30 arc-chutes
40 striking runways
40a protruding portion
41 first segments
42 second segments
43 third sections
50 current paths
51 current strap
52 first welding surfaces
53 second welding surfaces
60 air-blowing plates
61 limit ribs
62 mounting posts
70 increase magnetic sheet
71 mounting holes
A electric arc accumulation regions
Specific embodiment
In order to which the technical features, objects and effects of invention are more clearly understood, the Detailed description of the invention present invention is now compareed
Specific embodiment, identical label indicates identical part in the various figures.It is identical in the attached drawing for indicating each embodiment
Rear two digits indicate that structure is identical or structure is similar but the identical component of function.
To make simplified form, part related to the present invention is only schematically shown in each figure, their not generations
Its practical structures as product of table.In addition, there is identical structure or function in some figures so that simplified form is easy to understand
Component, only symbolically depict one of those, or only marked one of those.
Refering to fig. 1, which show a kind of partial structure diagrams of exemplary embodiment of breaker of the present invention.This is disconnected
Road device includes: a pair of mutually matched moving contact 10 and 20, arc-chutes 30 of static contact and a striking runway 40.Value
, it is noted that for the linear striking runway generally used in compared with the prior art, in breaker of the invention
Striking runway 40 has the feature of bending.
When specifically, in order to guarantee disjunction short circuit current, electric arc quickly leaves voltage contact area and is transferred to after being formed draws
The bending place of arc runway, to reduce ablation of the electric arc to contact, it is preferred that striking runway 40 is arranged towards close to described
It is bent at the position of static contact 20.Combined with Figure 1 and Figure 2, it illustrates a kind of specific embodiment of the invention, the striking is run
Road 40 has the protruding portion 40a of an end towards the static contact 20.It is one that protruding portion 40a, which divides the striking runway 40,
First segment 41 and a second segment 42.More specifically for, first segment 41 also have there are two end, first segment 41 one of them
End is connected to protruding portion 40a, another end of first segment 41 is free end, for the ease of electric arc quickly from moving contact 10
Striking runway 40 is jumped to, the free end of first segment 41 is arranged close in the end of the moving contact 20.Meanwhile second segment 42
Also for tool there are two end, one of end of second segment 42 is connected to protruding portion 40a, another end of second segment 42 is certainly
By holding, the free end of second segment 42 is for protruding into arc-chutes 30.As shown in Figure 1, it is further preferred that for ease of electric arc entrance
Arc-chutes 30 are simultaneously quickly extinguished, and second segment 42 can be bent with further occurrence, specifically, the free end of second segment 42
Place can also be connected with a third section 43, which can protrude into the inside of the arc-chutes 30 in parallel.
In order to form a comparatively ideal electric arc accumulation regions, in particular, end of the protruding portion 40a away from static contact 20 away from
With a distance from less than end of other any point away from static contact 20 on striking runway 40.It should be appreciated that dashing forward in the present invention
The structure and form of portion 40a and do not have protruding portion between limitation, such as first segment 41 and second segment 42 of the invention out
40a can be the protrusion circular arc an of gentle transition, include that an end apart from static contact is shortest on the protrusion circular arc
Protruding tip.
Be worth be with pointing out, in order to enable electric arc can easily reach institute between static contact 20 and protruding point 40a
The electric arc accumulation regions of formation, a kind of preferred embodiment according to the present invention, the distance of end of the protruding portion 40a away from static contact 20 is not
Greater than the static contact 20 and moving contact 10 in the off state at a distance from.Gradually due to the distance between electric arc and static contact 20
Reduce, the resistance after air ionization is also gradually reduced, and when disjunction short circuit current, electric arc can easily enter electric arc accumulation regions
A。
Further, in order to promote electric arc that can more rapidly jump to striking runway, and arc-chutes are finally introduced,
Prevent electric arc from restriking and occurring behind arcing back phenomenon, refering to Fig. 2-3, breaker of the invention further include: one in voltage contact area
A current path 50 with opening, described be open are located remotely from the side of arc-chutes 30.Since current path 50 constitutes one
The cyclic structure of a non-close, the auxiliary magnetic field that current path 50 is formed can preferably push electric arc to the shifting of arc-chutes 30
It is dynamic, so that the interrupting performance of breaker is more stable.A kind of illustrative examples according to the present invention, current path 50 by
The formation of current strap 51, it is contemplated that current path can be made preferably to form auxiliary magnetic field, it is preferred that the width of current strap 51 is remote
Less than the radius of the circumcircle of current path 50.
In order to realize the connection between current path and striking runway and external conductor, current path 50 further include: respectively
The first welding surface 52 and the second welding surface 53 being connected on two ends of current strap 51.Correspondingly, in current strap 51
The first segment 41 of first welding surface 52 connection striking runway 40.A kind of alternative embodiment according to the present invention, first segment 41 from
By being additionally provided with a welding groove on end, the welding groove of the first welding surface 52 and the free end of first segment 41 in current strap 51
Weld together.The second welding surface 53 in current strap 51 is flexible coupling to external conductor.In order to preferably realize circuit paths 50
Connection between striking runway 40, to form the current loop that is steadily connected to, a kind of preferred embodiment according to the present invention, the
The gradient of one welding surface 52 and the gradient of the free end of first segment 41 are consistent.
Electric arc can be further helped to be rapidly introduced into arc-chutes in view of providing an airflow field, breaker of the invention is also
It is provided with an air-blowing plate 60.The top of current path 50 is arranged in air-blowing plate 60, and the lower section of striking runway 40 is arranged in.
A kind of alternative embodiment according to the present invention, air-blowing plate 60 are made of nylon material, can generate under high arc temperature effect
Gas, facilitate a relative closure space (such as by striking runway, moving contact, static contact and neighbouring setting it is dynamic,
The space that some housing units between static contact are constituted) in formed gas high pressure, by the gas for making full use of voltage contact area
Flow field is conducive to push movement of the electric arc to arc-chutes.At the same time, it since striking runway is using the shape of local bending, borrows
The space for helping above-mentioned relative closure is capable of forming at the bending position of striking runway and is quickly flowed using airflow field pressure difference
Gas helps to reduce electric arc in the delay in the region and reverse movement.
At the same time, breaker of the invention further include: a detachable increasing magnetic sheet 70 is arranged in striking runway
40 lower section, for generating auxiliary magnetic field.Optionally, increasing magnetic sheet 70 is the lesser ferrous material of magnetic resistance.It can in conjunction with Fig. 3
See, the size of increasing 70 outer profile of magnetic sheet is less than the size of the Internal periphery of current path 50, increases magnetic sheet 70 so just at a predetermined interval
It is accommodated in the inside of current path 50, and keeps electrical isolation between current path 50.It is preferred that increasing the foreign steamer of magnetic sheet 70
Exterior feature is adapted with the Internal periphery of current path 50.
In order to realize air-blowing plate 60 and increase the connection between magnetic sheet 70, multiple limit ribs 61 are additionally provided on air-blowing plate 60,
Limit rib 61 increases magnetic sheet 70 for fixed.In order to further realize fastening effect, at least one peace is additionally provided on air-blowing plate 60
Column 62 is filled, and increases and is additionally provided at least one mounting hole 71 on magnetic sheet 70, mounting post 62 is inserted into pair increased on magnetic sheet 70 respectively
The mounting hole 71 answered.It should be pointed out that the structure type and quantity of limit rib 61 and mounting post 62 is not unique, those skilled in the art
Member can do reasonable change according to the actual situation.It should be mentioned, however, that the increasing magnetic sheet 70 in the present invention can also be according to properties of product
And cost needs, the effect that current path is substituted in low product is not assembled or is required in disjunction in assembly perhaps.
It is preferred that breaker of the invention in disconnection process, will form one between static contact 20 and striking runway 40
A electric arc accumulation regions A in horse-hof shape.It will form a current loop, specific electric current after the electric arc conducting of electric arc accumulation regions A
Flow direction as shown in phantom in Figure 3, i.e., electric arc pass sequentially through static contact 20, electric arc accumulation regions A, striking runway 40 first segment 41 with
And current path 50, finally flow out.When forming access in current path 50, it is equivalent to non-enclosed single-turn circular coil, wherein
Between region generate electromagnetic field, the magnetic field through increasing magnetic sheet 70 aggregation after further enhance, effect of the arc current in the magnetic field
Under by electromagnetic force, it is quickly mobile to the direction of arc-chutes 30 to facilitate electric arc.At the same time, by striking runway 40, moving contact
10, static contact 20 and the neighbouring some housing units being arranged between dynamic and static contact constitute the sky of a relative closure
Between, under arc energy effect, shell and air-blowing plate 60 are sharply increased in the gas flow that the region generates, in electric arc accumulation regions A
Place forms draught head, and the direction through arc-chutes 30 discharges outward, therefore the air-flow can help electric arc to rapidly enter arc-chutes.
In order to enable the present invention can be more clearly understood in those skilled in the art, it is detailed below in conjunction with Fig. 1-3
The working principle of breaker of the present invention is described:
When disjunction short circuit current, moving contact 10 and static contact 20 under short circuit current acts on after opening, in voltage contact area
Electric arc is formed, with the help of airflow field and magnetic field force, electric arc is quickly mobile to the contact root area of moving contact 10, by into one
Step jumps on striking runway 40 after elongating；Electric arc enters striking runway 40 to electric arc accumulation regions A movement, when electric arc reaches electric arc
After the A of accumulation regions, the current loop formed is connected by electric arc and sees Fig. 3.
It was found from the angle analysis of magnetic field force: since electric arc accumulation regions A is in the middle position of current path, magnetic field compared with
By force, facilitate electric arc and rapidly enter arc-chutes under magnetic field force effect.It was found from the angle analysis of airflow field: the A of electric arc accumulation regions
The air-flow that opening in a relative closure space, shell and air-blowing plate generate in the region by electric arc accumulation regions A to
When outer release, using its draught head, electric arc can be helped to rapidly enter arc-chutes.Above two effect also can be prevented effectively
The reverse movement of electric arc is to voltage contact area；And even if due to thermal current presence and when the behind repeated breakdown of electric arc occurs, energy
Enough so that position of restriking occurs that the secondary burn to contact is reduced or avoided in electric arc accumulation regions A as far as possible.
In conclusion the striking runway of electrification flow path of the present invention has more preferably compared to traditional striking runway
Striking performance.Firstly, electric arc of the invention jumps fastly, it can quickly leave moving contact region and be avoided into striking runway
The secondary of voltage contact area is restriked, and reduces the ablation of contact.Again, the present invention can make full use of the airflow field of voltage contact area,
Push movement of the electric arc to arc-chutes.At the same time, current path formed auxiliary magnetic field also can preferably push electric arc to
Arc-chutes are mobile, avoid electric arc in the delay in the region and reverse movement.The present invention can improve residual current action breaker
Or the interrupting performance of miniature circuit breaker product.
Herein, " schematic " expression " serving as examplea, instances, or illustrations " should not will be described herein as " showing
Any diagram, the embodiment of meaning property " are construed to technical solution that is a kind of preferred or more having advantages.
Although not each embodiment is only wrapped it should be appreciated that this specification is described according to each embodiment
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solution in each embodiment may also be suitably combined to form those skilled in the art
The other embodiments that member is understood that.
The series of detailed descriptions listed above only for feasible embodiment of the invention specifically
Protection scope bright, that they are not intended to limit the invention, it is all without departing from equivalent implementations made by technical spirit of the present invention
Or change should all be included in the protection scope of the present invention.
Claims (11)
1. breaker, comprising:
A pair of mutually matched moving contact (10) and static contact (20)；
One arc-chutes (30)；And
One striking runway (40), the protruding portion (40a) with an end towards the static contact (20), the protruding portion
The striking runway is divided into a first segment (41) and a second segment (42) by (40a), wherein the free end of the first segment (41)
Close to the end of the moving contact (20), the arc-chutes (30) are protruded into the free end of the second segment (42), the protruding portion (40a)
The distance of end away from the static contact (20) is less than other any point on the striking runway (40) away from the static contact (20)
End distance；
One has the current path (50) of opening, and described be open is located remotely from the side of the arc-chutes (30)；
The current path (50) is formed by current strap (51), and the width of the current strap (51) is less than the current path (50)
Circumcircle radius；
The wherein current path (50) further include: the first welding being connected on two ends of the current strap (51)
Face (52) and the second welding surface (53), wherein first welding surface (52) is for connecting the first segment (41), second weldering
Junction (53) is for being flexible coupling to external conductor.
2. breaker as described in claim 1, wherein the distance of the end of the protruding portion (40a) away from the static contact (20) is not
Greater than the static contact (20) and the moving contact (10) in the off state at a distance from.
3. breaker as described in claim 1, wherein the gradient of first welding surface (52) and the first segment (41)
Free end gradient it is consistent.
4. breaker as described in claim 1, further includes: an air-blowing plate (60) is arranged in the current path (50)
Top, and be arranged in the lower section of the striking runway (40).
5. breaker as claimed in claim 4, further includes: a detachable increasing magnetic sheet (70) is arranged in the striking
The lower section of runway (40), to form one between the static contact (20) and the striking runway (40) in breaker disconnection process
A electric arc accumulation regions (A) in horse-hof shape.
6. breaker as claimed in claim 5, wherein the increasing magnetic sheet (70) is accommodated in the current path at a predetermined interval
(50) inside, and electrical isolation is kept between the current path (50).
7. breaker as claimed in claim 6, wherein the outer profile for increasing magnetic sheet (70) and the current path (50)
Internal periphery is adapted.
8. breaker as claimed in claim 5, wherein the air-blowing plate (60) is provided with multiple limit ribs (61), the limit
Muscle (61) is for fixing the increasing magnetic sheet (70).
9. breaker as claimed in claim 5, wherein the air-blowing plate (60) is additionally provided at least one mounting post (62), institute
State the corresponding mounting hole (71) that mounting post is inserted into respectively on increasing magnetic sheet (70).
10. breaker as claimed in claim 9, wherein forming an electric current after the electric arc conducting of the electric arc accumulation regions (A)
Circuit, and electric arc passes sequentially through the first segment of the static contact (20), the electric arc accumulation regions (A), the striking runway (40)
(41) and the current path (50).
11. breaker as described in claim 1, wherein the free end of the second segment (42) is also connected with one in parallel
Protrude into the internal third section (43) of the arc-chutes (30).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510138275.6A CN106158546B (en) | 2015-03-26 | 2015-03-26 | Breaker |
| GB1600132.3A GB2536765B (en) | 2015-03-26 | 2016-01-05 | Circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510138275.6A CN106158546B (en) | 2015-03-26 | 2015-03-26 | Breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106158546A CN106158546A (en) | 2016-11-23 |
| CN106158546B true CN106158546B (en) | 2019-08-13 |
Family
ID=57339029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510138275.6A Active CN106158546B (en) | 2015-03-26 | 2015-03-26 | Breaker |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106158546B (en) |
| GB (1) | GB2536765B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108695115B (en) * | 2017-04-06 | 2020-05-26 | 西门子公司 | Residual current operated circuit breaker |
| CN108447749B (en) * | 2018-04-04 | 2023-09-12 | 上海电科电器科技有限公司 | Arc striking and running structure |
| CN108336661A (en) * | 2018-05-05 | 2018-07-27 | 中科天工电气控股有限公司 | One kind being used for the widened cabinet of fault restriction electric arc |
| CN114050096A (en) * | 2021-11-11 | 2022-02-15 | 西安理工大学 | Miniature circuit breaker arc extinguishing system and have its miniature circuit breaker |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201392792Y (en) * | 2008-12-01 | 2010-01-27 | 何成祥 | Miniature circuit breaker with working status indicating lamp therein |
| CN202772086U (en) * | 2012-09-19 | 2013-03-06 | 乐清市国隆电气有限公司 | Breaker |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4519111B2 (en) * | 2006-08-31 | 2010-08-04 | 九州電力株式会社 | Circuit breaker with light emitting function |
| CN204011328U (en) * | 2014-07-31 | 2014-12-10 | 浙江天正电气股份有限公司 | A kind of miniature circuit breaker with magnetic conductive board |
-
2015
- 2015-03-26 CN CN201510138275.6A patent/CN106158546B/en active Active
-
2016
- 2016-01-05 GB GB1600132.3A patent/GB2536765B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201392792Y (en) * | 2008-12-01 | 2010-01-27 | 何成祥 | Miniature circuit breaker with working status indicating lamp therein |
| CN202772086U (en) * | 2012-09-19 | 2013-03-06 | 乐清市国隆电气有限公司 | Breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2536765A (en) | 2016-09-28 |
| GB201600132D0 (en) | 2016-02-17 |
| GB2536765B (en) | 2018-04-11 |
| CN106158546A (en) | 2016-11-23 |
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