CN106847629B - Miniature circuit breaker and circuit protection device - Google Patents
Miniature circuit breaker and circuit protection device Download PDFInfo
- Publication number
- CN106847629B CN106847629B CN201710234417.8A CN201710234417A CN106847629B CN 106847629 B CN106847629 B CN 106847629B CN 201710234417 A CN201710234417 A CN 201710234417A CN 106847629 B CN106847629 B CN 106847629B
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- execution unit
- connecting portion
- circuit breaker
- contact
- buckle releaser
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- 230000003068 static effect Effects 0.000 claims abstract description 36
- 230000007246 mechanism Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 10
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
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- 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
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- Breakers (AREA)
Abstract
The invention provides a miniature circuit breaker and a circuit protection device, and belongs to the technical field of circuit protection. The miniature circuit breaker comprises a shell, a driving device, a release and an execution component. A static contact is arranged in the shell. The tripper is rotationally arranged in the shell, the driving device is used for driving the tripper to rotate, and the tripper is provided with a contact part. The actuating component is rotatably arranged on the shell, a moving contact corresponding to the static contact is arranged on the actuating component, and the moving contact can be contacted with the static contact by the rotation of the actuating component. The tripper rotates to first direction and can drive conflict portion and promote the executive component and rotate to make the movable contact keep away from the static contact. When the tripper rotates, the conflict part on the tripper contacts with the execution component and pushes the execution component to rotate, the smaller rotation range of the conflict part is changed into the larger rotation range of the execution component, the movement track of the moving contact is enlarged, the distance between the moving contact and the static contact is finally increased, and the generation of electric arcs can be effectively avoided.
Description
Technical field
The present invention relates to circuit protection technical fields, in particular to a kind of miniature circuit breaker and circuit protection device.
Background technology
It refers to close, carry and cut-off the electric current under normal loop condition when miniature circuit breaker, and can close, advise
Fix time it is interior carrying and beginning exception loop condition under electric current switching device.Existing miniature circuit breaker separating brake contact spacing
It is relatively close, it easily causes disjunction short circuiting arc to be difficult to extinguish, causes hazard of catch fire.
Invention content
The purpose of the present invention is to provide a kind of miniature circuit breakers, are more closely asked with improving miniature circuit breaker separating brake contact spacing
Topic.
The purpose of the present invention is to provide a kind of circuit protection devices, closer to improve miniature circuit breaker separating brake contact distance
The problem of.
The invention is realized in this way：
Based on above-mentioned first purpose, the present invention provides a kind of miniature circuit breaker, including shell, driving device, buckle releaser, holds
Row component.
Static contact is arranged in enclosure interior.
Buckle releaser is rotatably set to shell, and for driving device for driving buckle releaser to rotate, buckle releaser has abutting portion.
Execution unit is rotatably set to shell, and execution unit is equipped with moving contact corresponding with static contact, executes
Component rotation can be such that moving contact is contacted with static contact.
Buckle releaser can drive abutting portion to push execution unit rotation to first direction rotation, and make moving contact far from stationary contact
Head.
Inventor has found that in the prior art, moving contact is generally located on the abutting portion of buckle releaser, and buckle releaser rotation drives
Abutting portion rotates, to realize the separation of moving contact and static contact.But under the action of driving device, slewing area has buckle releaser
Limit, therefore the slewing area of abutting portion is smaller, breaker disjunction short circuit operation ability is restricted, excessive in power-supply system capacity
When, power supply capacity is not achieved in contact breaking capacity, easily causes disjunction short circuiting arc not extinguish and causes hazard of catch fire.Therefore, originally
In invention, execution unit is provided in miniature circuit breaker, moving contact is set on execution unit, is rotated and is driven by abutting portion
The mode of execution unit rotation, becomes the larger slewing area of execution unit by the smaller slewing area in abutting portion, has reached increasing
Big moving contact purpose at a distance from static contact.
Further, miniature circuit breaker further includes return mechanism, and when buckle releaser is rotated to second direction, return mechanism can
Execution unit rotation is driven, and moving contact is made to be contacted with static contact, second direction is opposite with first direction.
Further, return mechanism includes sliding block, connector and actuator, and sliding block is slidably connected with shell, and sliding block passes through
Connector is connect with execution unit.
Actuator is connect with buckle releaser, and when buckle releaser is rotated to second direction, actuator can drive sliding block with respect to shell
Sliding, and moving contact is made to be contacted with static contact.
Further, actuator one end is rotatablely connected with buckle releaser, and the other end and the sliding block of actuator are rotatablely connected.
Further, connector is elastic component.
Further, abutting portion includes extension and protrusion, and protrusion and extension are in angle setting, and buckle releaser is to the
When one direction rotates, protrusion can be contradicted with execution unit.
Further, execution unit has distal end, is distally away from the pivot center of execution unit, and moving contact is set to remote
End, abutting portion and the pivot center close to execution unit at execution unit conflict.
Further, execution unit includes sequentially connected first connecting portion, second connecting portion and third interconnecting piece, and second
There is the first side and the second side, first connecting portion to be rolled tiltedly to first with respect to second connecting portion in the width direction of interconnecting piece, the
Three interconnecting pieces are tilted with respect to second connecting portion to the second side.
First connecting portion is connect with housing into rotation, and moving contact is set to third interconnecting piece.
Further, first connecting portion and the be in angle of second connecting portion are obtuse angle, third interconnecting piece and second connecting portion
Be in angle is obtuse angle.
Based on above-mentioned second purpose, the present invention provides a kind of circuit protection device, including at least two above-mentioned miniature disconnected
Road device, miniature circuit breaker are arranged side by side.
The beneficial effects of the invention are as follows：
The present invention provides a kind of miniature circuit breaker, is provided with rotatable execution unit, and moving contact setting is executing
On component.When buckle releaser rotates, the abutting portion on buckle releaser will be contacted with execution unit, and execution unit is pushed to rotate, will
The smaller slewing area in abutting portion becomes the larger slewing area of execution unit, to put the movement locus of moving contact
Greatly, moving contact is finally increased at a distance from static contact so that the arc voltage intensity between moving contact and static contact is not enough to tie up
It holds electric arc and extinguishes.
The present invention provides a kind of circuit protection device, including at least two above-mentioned miniature circuit breakers, has above-mentioned miniature disconnected
All advantages of road device.Two in circuit protection device and more than two miniature circuit breakers can protect different circuits
Shield.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram for the miniature circuit breaker that the embodiment of the present invention 1 provides；
Fig. 2 is the structural representation portion of abutting portion shown in FIG. 1；
Fig. 3 is the analysis chart that abutting portion shown in FIG. 1 pushes execution unit movement；
Fig. 4 is the structural schematic diagram of execution unit shown in FIG. 1；
Fig. 5 is that the miniature circuit breaker that the embodiment of the present invention 1 provides removes the partial enlarged view after the first component；
Fig. 6 is the structural schematic diagram for the circuit protection device that the embodiment of the present invention 2 provides.
Icon：100- miniature circuit breakers；10- shells；The first lines of 11- end；The second lines of 12- end；13- electromagnet；14-
Sensor；15- static contacts；16- resetting springs；20- driving devices；21- combined floodgate spanners；22- connecting rods；23- first axles；30- is de-
Detain device；The second axis of 31-；The 32- first components；The second hook portions of 321-；322- contact sites；33- second components；331- first is linked up with
Portion；The abutting portions 332-；3321- protrusions；3322- extensions；40- execution units；41- first connecting portions；The connections of 42- second
Portion；43- third interconnecting pieces；The 4th interconnecting pieces of 44-；45- moving contacts；The first sides 46-；47- the second sides；48- third axis；50- is returned
Position mechanism；51- connectors；52- sliding blocks；53- actuators；First jiao of a-；Second jiao of b-；200- circuit protection devices.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, below the detailed description of the embodiment of the present invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiments of the present invention, this field is common
The every other embodiment that technical staff is obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the present invention, it should be noted that indicating position or position relationship are orientation based on ... shown in the drawings
Or the position relationship invention product using when the orientation or positional relationship usually put or people in the art
The orientation or positional relationship that usually understands of member or the invention product using when the orientation or positional relationship usually put, only
It is that for convenience of description of the present invention and simplification of the description, not indicating or implying the indicated device or element must have specifically
Orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, term " first ", " the
Two ", " third " etc. is only used for distinguishing description, is not understood to indicate or imply relative importance.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；Can be
It is directly connected to, can also be indirectly connected with by intermediary.It for the ordinary skill in the art, can be with concrete condition
Understand the concrete meaning of above-mentioned term in the present invention.
Embodiment 1
As shown in Figure 1, the present embodiment provides a kind of miniature circuit breaker 100, including shell 10, driving device 20, buckle releaser
30, execution unit 40 and return mechanism 50.
Wherein, shell 10 is the carrier of each parts, can be played a protective role to each parts.Shell 10 has the
One line end 11 and the second line end 12, shell 10 are internally provided with electromagnet 13, sensor 14 and static contact 15, and sensor 14 is gone here and there
It is associated between the first line end 11 and static contact 15, sensor 14 is electrically connected with electromagnet 13.
Driving device 20 includes combined floodgate spanner 21 and connecting rod 22, and combined floodgate spanner 21, which is rotated with shell 10 by first axle 23, to be connected
It connects, connecting rod 22 is bending structure, and one end and the combined floodgate spanner 21 of connecting rod 22 are rotatablely connected.
Buckle releaser 30 is rotatablely connected by the second axis 31 with shell 10, and shell 10 is equipped with for resetting answering for buckle releaser 30
Position spring 16.Buckle releaser 30 has the first hook portion 331, the second hook portion 321, abutting portion 332 and contact site 322.
Wherein, the first hook portion 331 and the second hook portion 321 are located at the top of buckle releaser 30, the second hook portion 321 and
One hook portion 331 coordinates.The one end of connecting rod 22 far from combined floodgate spanner 21 is rotatablely connected with the first hook portion 331.
Abutting portion 332 is located at the bottom of buckle releaser 30.As shown in Fig. 2, abutting portion 332 includes protrusion 3321 and from dropout
The extension 3322 that device 30 extends, protrusion 3321 are set to one end of extension 3322, protrusion 3321 and extension 3322
It is arranged in angle.In the present embodiment, protrusion 3321 perpendicular to extension 3322, protrusion 3321 far from extension 3322 one
End is arc structure.Protrusion 3321 constitutes L-shaped structure with extension 3322.
As shown in Figure 1, contact site 322 extends to the side of abutting portion 332 and close to electromagnet 13.
Contact site 322 and the second hook portion 321 are an entirety, it can be understood as contact site 322 and the second hook portion 321
For a part for the first component 32；Abutting portion 332 and the first hook portion 331 are an entirety, it can be understood as abutting portion 332 with
First hook portion 331 is a part for second component 33.The first component 32 can with respect to 33 fine motion of second component, the first component 32 with
Second component 33 constitutes entire buckle releaser 30.
Execution unit 40 is rotatably coupled on shell 10, when buckle releaser 30 is rotated to first direction, buckle releaser 30
Abutting portion 332 will push execution unit 40 to rotate.In the present embodiment, first direction is counterclockwise.As shown in figure 3, contradicting
After portion 332 is contacted with execution unit 40, the angle that abutting portion 332 rotates is first jiao of a, and the angle that execution unit 40 rotates is second
Angle b, first jiao of a are less than second jiao of b.
Enforcement division is equipped with moving contact 45, and moving contact 45 is electrically connected with the second line end 12 of shell 10.Execution unit 40
With distal end, moving contact 45 is set to far-end.Specifically, as shown in figure 4, execution unit 40 includes first connecting portion 41, second
Interconnecting piece 42, third interconnecting piece 43 and the 4th interconnecting piece 44.First connecting portion 41, second connecting portion 42 and third interconnecting piece 43 according to
Secondary connection, first connecting portion 41, second connecting portion 42 and third interconnecting piece 43 are strip structure.The width of second connecting portion 42
There is the first side 46 and the second side 47, first connecting portion 41 to be tilted to the first side 46 with respect to second connecting portion 42, third on direction
Interconnecting piece 43 is tilted with respect to second connecting portion 42 to the second side 47.In the present embodiment, first connecting portion 41 and second connecting portion 42
Be in angle is obtuse angle, and third interconnecting piece 43 is also obtuse angle with 42 be in angle of second connecting portion.The length of first connecting portion 41
More than the length of second connecting portion 42, the length of second connecting portion 42 is more than the length of third interconnecting piece 43.First connecting portion 41
With second connecting portion 42.4th interconnecting piece 44 is located at first connecting portion 41 and 42 junction of second connecting portion, the 4th interconnecting piece 44
Positioned at the second side 47 of second connecting portion 42, the 4th interconnecting piece 44 vertically with first connecting portion 41.Moving contact 45 is set to third
Side of the interconnecting piece 43 far from the 4th interconnecting piece 44, i.e. third interconnecting piece 43 are the distal end of execution unit 40.
As shown in Figure 1, the centre position of the first connecting portion 41 of execution unit 40 is rotated with shell 10 by third axis 48
Connection, the pivot center of execution unit 40 are located at the lower section of 332 pivot center of abutting portion, i.e. third axis 48 is located under the second axis 31
Side.On the track that execution unit 40 is rotated when abutting portion 332 is located at moving contact 45 close to static contact 15.Static contact 15 is located at the
First side 46 of two interconnecting pieces 42.When buckle releaser 30 is rotated to first direction, the protrusion 3321 of contact site 322 will be with execution
The first connecting portion 41 of component 40 contacts, and execution unit 40 is pushed to be rotated around third axis 48.Execution unit 40 is connected to shell
After 10, protrusion 3321 and the pivot center close to execution unit 40 at the conflict of execution unit 40,45 institute of moving contact is in place
The pivot center for being away from execution unit 40 is set, the Small-angle Rotation of abutting portion 332 translates into the wide-angle of execution unit 40
Rotation.
As shown in figure 5, return mechanism 50 includes connector 51, sliding block 52 and actuator 53.In the present embodiment, connector 51
For elastic component, preferably spring.Sliding block 52 is slidably connected with shell 10；One end of connector 51 and first connecting portion 41 are far from the
One end of two interconnecting pieces 42 is rotatablely connected, and the other end and the sliding block 52 of connector 51 are rotatablely connected；53 one end of actuator and dropout
Device 30 is hinged, and the other end and sliding block 52 of actuator 53 are hinged.Third axis 48 is located at the company of connector 51 and first connecting portion 41
Between connecing place and protrusion 3321 and the conflict of first connecting portion 41, the protrusion 3321 of connector 51 and abutting portion 332 is distinguished
Act on the both sides in 41 width direction of first connecting portion.When buckle releaser 30 is rotated to second direction, actuator 53 pushes sliding block
52 slide to far from connector 51 and 41 junction of first connecting portion, and connector 51 pulls on the rotation of execution unit 40, and makes
Contact 45 is close to static contact 15.Second direction is with first direction on the contrary, i.e. second direction is clockwise.
Making process：Combined floodgate spanner 21 is pushed, and buckle releaser 30 is made to be rotated to second direction, abutting portion 332 also will be to the
Two directions rotate, to concede the space of the rotation of execution unit 40.Certainly, buckle releaser 30 is into second direction rotation process, driving
Part 53 will apply thrust to sliding block 52, so that sliding block 52 is slided, so that sliding block 52 is away from the company of connector 51 and execution unit 40
Place is met, under the pulling force effect of connector 51, execution unit 40 will rotate, and make the moving contact 45 on third interconnecting piece 43
It is final to realize that moving contact 45 is contacted with static contact 15 close to static contact 15.In addition, buckle releaser 30 is to second direction rotation process
In, contact site 322 will also rotate, and contact site 322 finally will be close to electromagnet 13.The dynamic iron core of contact site 322 and electromagnet 13
Close, moving contact 45 contacts with static contact 15 and just completes making process.
Open a sluice gate process：When sensor 14 detects that electric current is excessive in connected circuit, electromagnet 13 will be pushed and be contacted
Portion 322, due to the first component 32 can opposite 33 fine motion of second component, the first hook portion 331 and second extension in buckle releaser 30
Hook portion 321 is detached from, so that buckle releaser 30 is rotated to first direction under the action of resetting spring 16, certainly, abutting portion 332 also will
It is rotated to first direction, the protrusion 3321 of abutting portion 332 contacts with the first connecting portion 41 of execution unit 40 and pushes execution
Component 40 rotates, so that the moving contact 45 on third interconnecting piece 43 is detached with static contact 15, and moving contact 45 is made finally to be away from
Static contact 15.Certainly, for buckle releaser 30 into first direction rotation process, actuator 53 will push sliding block 52 to close to connector 51
It moves with 41 junction of first connecting portion, finally sets back.
A kind of miniature circuit breaker 100 provided in this embodiment, when buckle releaser 30 is rotated to first direction, on buckle releaser 30
Abutting portion 332 will be contacted with execution unit 40, and execution unit 40 is pushed to rotate, and the smaller slewing area in abutting portion 332 is become
For the slewing area that execution unit 40 is larger moving contact is finally increased to which the movement locus of moving contact 45 to be amplified
45 at a distance from static contact 15, and contact arc voltage degree of passing reduces rapidly, and arc voltage intensity is not enough to pilot arc and extinguishes,
What arc-control device volume can be done in this miniature circuit breaker 100 is smaller, can effectively reduce production cost.
In the present embodiment, return mechanism 50 is equipped in miniature circuit breaker 100, so that moving contact 45 can be stablized and stationary contact
First 15 contact.Return mechanism 50 includes connector 51, sliding block 52 and actuator 53, and enforcement division is driven by the sliding of sliding block 52
Part 40 rotates, and in making process, execution unit 40 can be driven to rotate without applying too big power to combined floodgate spanner 21.This implementation
In example, sliding block 52 is in sliding process, connector 51 and the junction of sliding block 52 and connector 51 and 40 junction of execution unit
Between distance will change, therefore connector 51 is selected as elastic component, to ensure being not in stuck phenomenon in making process.This
Outside, in the present embodiment, the both ends of actuator 53 are all made of rotation connection mode and are connect respectively with buckle releaser 30 and sliding block 52, thread off
In rotation, actuator 53 is easy to that sliding block 52 is pushed to slide device 30.In other specific embodiments, actuator 53 also can be direct
It is fixed on buckle releaser 30, actuator 53 is contacted with 52 face of sliding block, can set actuator 53 to cam structure.
In the present embodiment, protrusion 3321 is arranged with extension 3322 in angle in abutting portion 332, ensures abutting portion 332
Protrusion 3321 is contacted with execution unit 40 in rotation process, the Impact direction of execution unit 40 can be changed, abutting portion 332 is more
Easily execution unit 40 is pushed to rotate, while also ensuring the slewing area of execution unit.
In the present embodiment, first connecting portion 41, second connecting portion 42, third interconnecting piece 43 are using bending in execution unit 40
Structure can make to open a sluice gate the bigger at a distance from static contact 15 of rear moving contact 45.And first connecting portion 41 is in second connecting portion 42
Angle is obtuse angle, and third interconnecting piece 43 is obtuse angle with second connecting portion 42, and rear moving contact is opened a sluice gate it is intended that further increasing
45 at a distance from static contact 15, while moving contact 45 will not be avoided generating electric arc towards static contact 15.Second execution unit
The 4th interconnecting piece 44 in 40 can then play position-limiting action, and after the 4th interconnecting piece 44 is contacted with shell 10, execution unit 40 is then
It will not be rotated again to the direction far from static contact 15.
Embodiment 2
As shown in fig. 6, in a kind of circuit protection device 200 that the present embodiment is provided, including two above-described embodiments
Miniature circuit breaker 100, two miniature circuit breakers 100 are arranged side by side.
This circuit protection device 200 can operate in multi-loop circuit, and each miniature circuit breaker 100 can be individually to single
It is protected in circuit.
In the present embodiment, miniature circuit breaker 100 is two in circuit brake, miniature disconnected in other specific embodiments
Road device 100 is alternatively multiple.
It these are only the preferred embodiment of the present invention, be not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.Any modification made by all within the spirits and principles of the present invention,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of miniature circuit breaker, which is characterized in that including shell, driving device, buckle releaser, execution unit；
Static contact is arranged in the enclosure interior；
The buckle releaser is rotatably set to the shell, and the driving device is described for driving the buckle releaser to rotate
Buckle releaser has abutting portion；
The execution unit is rotatably set to the shell, and the execution unit is equipped with corresponding with the static contact
Moving contact, the execution unit rotation can be such that the moving contact is contacted with the static contact；
The buckle releaser can drive the abutting portion to push the execution unit rotation to first direction rotation, and make described dynamic
Contact is far from the static contact；
The miniature circuit breaker further includes return mechanism, and when the buckle releaser is rotated to second direction, the return mechanism can
It drives the execution unit to rotate, and the moving contact is made to be contacted with the static contact, the second direction and the first party
To opposite；
The return mechanism includes sliding block, connector and actuator, and the sliding block is slidably connected with the shell, and the sliding block is logical
Connector is crossed to connect with the execution unit；
The actuator is connect with the buckle releaser, and when the buckle releaser is rotated to second direction, the actuator can drive
The relatively described shell sliding of the sliding block, and the moving contact is made to be contacted with the static contact.
2. miniature circuit breaker according to claim 1, which is characterized in that described actuator one end is rotated with the buckle releaser
Connection, the other end of the actuator are rotatablely connected with the sliding block.
3. miniature circuit breaker according to claim 2, which is characterized in that the connector is elastic component.
4. miniature circuit breaker according to claim 1, which is characterized in that the abutting portion includes extension and protrusion,
The protrusion and the extension are in angle setting, and when the buckle releaser is rotated to first direction, the protrusion can be with
The execution unit contradicts.
5. miniature circuit breaker according to claim 1, which is characterized in that the execution unit has distal end, the distal end
It is away from the pivot center of the execution unit, the moving contact is set to the distal end, the abutting portion and the execution unit
Close to the pivot center of the execution unit at conflict.
6. miniature circuit breaker according to claim 5, which is characterized in that the execution unit includes sequentially connected first
Interconnecting piece, second connecting portion and third interconnecting piece have the first side and the second side, institute in the width direction of the second connecting portion
State the relatively described second connecting portion of first connecting portion rolled to first it is oblique, the relatively described second connecting portion of third interconnecting piece to
The second side tilts；
The first connecting portion is connect with the housing into rotation, and the moving contact is set to the third interconnecting piece.
7. miniature circuit breaker according to claim 6, which is characterized in that the first connecting portion and the second connecting portion
Be in angle is obtuse angle, and the third interconnecting piece and the be in angle of the second connecting portion are obtuse angle.
8. a kind of circuit protection device, which is characterized in that including at least two miniature open circuits of claim 1-7 any one of them
Device, the miniature circuit breaker are arranged side by side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710234417.8A CN106847629B (en) | 2017-04-11 | 2017-04-11 | Miniature circuit breaker and circuit protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710234417.8A CN106847629B (en) | 2017-04-11 | 2017-04-11 | Miniature circuit breaker and circuit protection device |
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| Publication Number | Publication Date |
|---|---|
| CN106847629A CN106847629A (en) | 2017-06-13 |
| CN106847629B true CN106847629B (en) | 2018-07-20 |
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| CN201710234417.8A Active CN106847629B (en) | 2017-04-11 | 2017-04-11 | Miniature circuit breaker and circuit protection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108777244B (en) * | 2018-08-20 | 2023-11-03 | 厦门大恒科技有限公司 | Energy storage hydraulic circuit breaker and overcurrent protection equipment |
| CN108878209B (en) * | 2018-09-03 | 2024-05-14 | 厦门大恒科技有限公司 | Miniature circuit breaker with built-in vacuum contact mechanism |
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| CN101958206A (en) * | 2009-12-09 | 2011-01-26 | 上海诺雅克电气有限公司 | Miniature circuit breaker operation mechanism capable of realizing multi-control input and output |
| CN102436983A (en) * | 2011-10-11 | 2012-05-02 | 浙江正泰电器股份有限公司 | Auxiliary release device of low-voltage breaker |
| CN103745892A (en) * | 2014-01-16 | 2014-04-23 | 徐波 | Operation mechanism of small-size breaker |
| CN203859083U (en) * | 2014-03-24 | 2014-10-01 | 上海诺雅克电气有限公司 | Operation mechanism of small circuit breaker |
| CN105762033A (en) * | 2016-04-27 | 2016-07-13 | 乐清市也为电气有限公司 | Moving contact operating mechanism for residual-current circuit breaker |
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| CN106847629A (en) | 2017-06-13 |
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