CN205943983U - Miniature circuit breaker - Google Patents
Miniature circuit breaker Download PDFInfo
- Publication number
- CN205943983U CN205943983U CN201620948357.7U CN201620948357U CN205943983U CN 205943983 U CN205943983 U CN 205943983U CN 201620948357 U CN201620948357 U CN 201620948357U CN 205943983 U CN205943983 U CN 205943983U
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- Prior art keywords
- circuit breaker
- elastic component
- intermediate support
- housing
- miniature circuit
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Abstract
The utility model provides a miniature circuit breaker. The main problem of solving current circuit breaker operating device structure complicacy, assembly difficulty. Its characterized in that: middle support piece's middle part is through microscler movable groove, loose axle and casing clearance fit, still be equipped with the third elastic component that support piece resets in the middle of ordering about between middle support piece and the casing. Its advantage lies in through the relative slip between the elastic force of third elastic component and microscler movable groove and the loose axle that for moving contact and static contact provide a reliable excess of stroke, and ammunition feed nature reset force is carried for center support spare wholly resets simultaneously to the third elastic component, compares with current operating device, has saved a moving contact torsional spring, and not only the structure is simpler, and it is more convenient to install, has still saved the material, the cost is reduced.
Description
Technical field
The utility model is related to a kind of breaker, specifically related to a kind of miniature circuit breaker.
Background technology
Miniature circuit breaker, also known as miniature circuit breaker, has advanced, strong, low-profile of dependable performance, breaking capacity of structure etc.
Feature, the overload of illumination, distribution line and equipment as office building, house and similar building and short-circuit protection are used, also
Can infrequently make-break operation and conversion be used as circuit.
The operating mechanism of existing miniature circuit breaker, mostly as Chinese utility model patent（Authorize publication number：CN
204029745 U, authorized announcement date：2014.12.17）Shown in a kind of disclosed miniature circuit breaker, its operating mechanism includes hand
Handle, handle and connecting rod, lock, mechanism support, tripping, tripping spring, moving contact rack, mechanism back spring.
Wherein, moving contact is fixedly mounted on moving contact rack, and moving contact rack is then installed by way of shaft hole matching
On mechanism support, and it is fixed by a torsion spring, when closing a floodgate, after moving contact is contacted with static contact, moving contact props up
Frame and mechanism support can overcome torsion spring elastic force to produce relative rotation, and this is just to provide one between moving contact and static contact
The excess of stroke.
Also just like utility application（Application publication number：CN 104319203 A, Shen Qing Publication day：
2015.01.28）Shown in disclosed circuit breaker operation mechanism, moving contact is arranged on by way of shaft hole matching moving contact and props up
On frame, and realize fixing by moving contact spring, the excess of stroke of moving contact and static contact is provided by moving contact spring.
Above two structure is really the same, is all by axis hole rotatable engagement, and then torsion spring is fixed, by torsion spring
Elastic force and relatively rotate the excess of stroke to be provided, but this structure is complex, and the installation operation of particularly torsion spring is relatively difficult.
Utility model content
In order to overcome the shortcomings of background technology, the utility model provides a kind of miniature circuit breaker, solves existing breaker behaviour
Make mechanism structure complexity, the difficult problem of assembling.
The technical scheme that the utility model is adopted：Including housing and be contained in operating mechanism in housing, dropout machine
Structure, static contact, moving contact, described operating mechanism includes handle, connecting rod, lock, tripping, intermediate support；Described handle can revolve
It is arranged on housing with turning, and be provided with the first elastic component ordering about handle reset；Described lock is rotatably installed in middle
The top of support member, and be connected with handle by connecting rod；Described tripping is rotatably installed in intermediate support, and is provided with and orders about
The second elastic component that tripping resets；The bottom fixed installation moving contact of described intermediate support；The middle part of described intermediate support
By elongated loose slot, movable axis and housing activity cooperation；It is additionally provided between described intermediate support and housing and order about middle
The 3rd elastic component that support member resets.
Described elongated loose slot is the groove being arranged on intermediate support, and its width is consistent with movable shaft diameter；Described work
Moving axis is fixed on housing, and passes through elongated loose slot.
The two ends of described elongated loose slot are in the arcuate structure being adapted to movable axis.
Described housing is provided with the first cylinder boss, and described intermediate support is provided with draw-in groove, and described 3rd elastic component is
Extension spring, described 3rd elastic component one end is in draw ring structure, and is set on the first cylinder boss, and the other end is in hook structure, and
Catch on described draw-in groove.
Described intermediate support lower end is provided with the mounting groove being adapted to moving contact, and described moving contact is fixedly mounted on mounting groove
Interior.
Described tripping mechanism includes hot trip assembley therefor and electromagnetic trip assembly.
The beneficial effects of the utility model are：Using above scheme, by elastic force and the elongated work of the 3rd elastic component
Relative slip between dynamic groove and movable axis, provides a reliable excess of stroke for moving contact with static contact, and the 3rd elastic component is same
When provide elastic reset power for intermediate support integral reset, compared with existing operating mechanism, save moving contact and turn round
Spring, not only structure is simpler, easier for installation, also saves material, reduces cost.
Brief description
Fig. 1 is the structural representation of the utility model embodiment miniature circuit breaker.
Fig. 2 is the enlarged diagram at A in Fig. 1.
Fig. 3 is the exploded perspective view of the utility model embodiment operating mechanism.
Fig. 4 is the structural representation of the utility model embodiment intermediate support.
Fig. 5 is the structural representation at another visual angle of the utility model embodiment intermediate support.
In figure 1- housing, 11- first cylinder boss, 2- operating mechanism, 21- handle, 22- connecting rod, 23- latches, and 24- jumps
Button, 25- intermediate support, the elongated movable axis of 251-, 252- draw-in groove, 253- mounting groove, 26- first elastic component, 27- second elasticity
Part, 28- the 3rd elastic component, 29- movable axis, 3- tripping mechanism, the de- mouth assembly of 31- heat, 32- electromagnetic trip assembly, 4- static contact,
5- moving contact.
Specific embodiment
Understandable for enabling above-mentioned purpose of the present utility model, feature and advantage to become apparent from, below in conjunction with the accompanying drawings to this
Utility model is further described in detail, embodiments given below only for illustrating the utility model, rather than in order to
Limit scope of the present utility model.
In description of the present utility model, it should be noted that term " on ", D score, " clockwise ", " counterclockwise " etc.
The orientation indicating or position relationship are to indicate with reference to the accompanying drawings and illustrate, and are to retouch for the ease of description the utility model and simplification
State, rather than instruction or the hint device of indication or element must have specific orientation, with specific azimuth configuration and operation,
Therefore it is not intended that to restriction of the present utility model.Additionally, term " first ", " second ", " the 3rd " are only used for describing purpose,
And it is not intended that indicating or hint relative importance.
As illustrated, a kind of miniature circuit breaker, including housing 1 and be contained in operating mechanism 2 in housing 1, dropout machine
Structure 3, static contact 4, moving contact 5, as illustrated, described tripping mechanism 3 includes hot trip assembley therefor 31 and electromagnetic trip assembly 32,
Described operating mechanism 2 includes handle 21, connecting rod 22, lock 23, tripping 24, intermediate support 25, the first elastic component 26, the second bullet
Property part 27, the 3rd elastic component 28.
Described handle 21 is rotatably installed on housing 1, and installs the first elastic component 26, and described first elastic component 26 is
Torsion spring, during dropout separating brake, can provide the elastic force of Rapid reset for handle 21.
The middle part of described intermediate support 25 is provided with elongated loose slot 251, and described housing 1 is provided with and elongated loose slot
The movable axis 29 of 251 adaptations, described intermediate support 25 passes through elongated loose slot 251, movable axis 29 and housing 1 activity cooperation；
Described 3rd elastic component 28 is extension spring, and one end is pulled on the housing 1 of handle 21 lower section, and the other end is pulled near elongated activity
In the intermediate support 25 of groove 251 top, the side wall that described 3rd elastic component 28 can order about elongated loose slot 251 is adjacent to movable axis
29, and order about intermediate support 25 towards the rotation of handle 21 direction.
Described lock 23 is rotatably installed in intermediate support 25 by shaft hole matching, and passes through connecting rod 22 and handle
21 connections, described connecting rod 22 is U type connecting rod, and handle 21 rotates, and can drive lock 23 and the action of middle frame bracing frame 25 simultaneously.
Described tripping 24 is rotatably installed in intermediate support 25 by shaft hole matching, installs the second elastic component 27,
Described second elastic component 27 is torsion spring, and two torsion spring pin of the second elastic component 27 are offseted with lock 23, tripping 24 respectively, make jump
The upper end of button 24 with latching 23 hasps and can be pinned.
Described intermediate support 25 lower end is provided with the mounting groove 253 being adapted to moving contact 5, and described moving contact is fixedly mounted on
In mounting groove 253.
During combined floodgate, driving handle 21 rotates clockwise, and handle 21 can promote lock 23 by connecting rod 22 and drive middle
Support member 25 rotates clockwise around movable axis 29, when moving contact 5 is contacted with static contact 4, remains to continue to press on handle 21, and middle
Support member 25 then overcomes the elastic force of the 3rd elastic component 28, by sliding along elongated loose slot 251 along movable axis 29, until tripping
24 are locked with lock 23 hasp；
During dropout separating brake, the tripping mechanism 3 of breaker drives tripping 24 to overcome the elastic force of the second elastic component 27, makes lock
23 are separated with tripping 24, and intermediate support 25 is then in elastic force and the first elastic component 26, handle 21, the connecting rod of the 3rd elastic component 28
Reset in the presence of 22.
By the relative slip between the elastic force of the 3rd elastic component 28 and elongated loose slot 251 and movable axis 29, it is
Moving contact 5 provides a reliable excess of stroke with static contact 4, and the 3rd elastic component 28 carries for intermediate support 25 integral reset simultaneously
For elastic reset force, compared with existing operating mechanism, save a moving contact torsion spring, not only structure is simpler, install
Convenient, also save material, reduce cost.
Certainly, described elongated loose slot can also be provided on housing, and corresponding movable axis is fixed on intermediate supports
On part.
As illustrated, the two ends of described elongated loose slot 251 are in the arcuate structure being adapted to movable axis 29, or perhaps half
, so that the end of elongated loose slot 251 is preferably coordinated with movable axis 29, structure is more stable for round structure.
As illustrated, described housing 1 is provided with the first cylinder boss 11, described intermediate support 25 is provided with draw-in groove 252,
Described 3rd elastic component 28 is extension spring, and described 3rd elastic component 28 one end is in draw ring structure, and is set in the first cylinder boss 11
On, the other end is in hook structure, and catches on described draw-in groove 252, is not only simple in structure, and easier for installation.
Embodiment is not construed as the restriction to utility model, but any based on of the present utility model spirit improvements introduced,
All should be within protection domain of the present utility model.
Claims (6)
1. a kind of miniature circuit breaker, including housing（1）And it is contained in housing（1）Interior operating mechanism（2）, tripping mechanism（3）、
Static contact（4）, moving contact（5）, described operating mechanism（2）Including handle（21）, connecting rod（22）, lock（23）, tripping（24）, in
Between support member（25）；
Described handle（21）It is rotatably installed in housing（1）On, and be provided with and order about handle（21）The first elastic component resetting
（26）；
Described lock（23）It is rotatably installed in intermediate support（25）Top, and pass through connecting rod（22）With handle（21）Even
Connect；
Described tripping（24）It is rotatably installed in intermediate support（25）On, and be provided with and order about tripping（24）The second bullet resetting
Property part（27）；
Described intermediate support（25）Bottom fixed installation moving contact（5）；
It is characterized in that：Described intermediate support（25）Middle part pass through elongated loose slot（251）, movable axis（29）With housing
（1）Activity cooperation；
Described intermediate support（25）With housing（1）Between be additionally provided with and order about intermediate support（25）The 3rd elastic component resetting
（28）.
2. miniature circuit breaker according to claim 1 it is characterised in that：Described elongated loose slot（251）In being arranged on
Between support member（25）Groove, its width and movable axis（29）Diameter is consistent；Described movable axis（29）It is fixed on housing（1）On,
And pass through elongated loose slot（251）.
3. miniature circuit breaker according to claim 2 it is characterised in that：Described elongated loose slot（251）Two ends be in
Movable axis（29）The arcuate structure of adaptation.
4. miniature circuit breaker according to claim 1 it is characterised in that：Described housing（1）It is provided with the first cylinder boss
（11）, described intermediate support（25）It is provided with draw-in groove（252）,
Described 3rd elastic component（28）For extension spring, described 3rd elastic component（28）One end is in draw ring structure, and is set in the first circle
Post boss（11）On, the other end is in hook structure, and catches on described draw-in groove（252）.
5. miniature circuit breaker according to claim 1 it is characterised in that：Described intermediate support（25）Lower end is provided with and moves
Contact（5）The mounting groove of adaptation（253）, described moving contact is fixedly mounted on mounting groove（253）Interior.
6. miniature circuit breaker according to claim 1 it is characterised in that：Described tripping mechanism（3）Including hot trip assembley therefor
（31）And electromagnetic trip assembly（32）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620948357.7U CN205943983U (en) | 2016-08-26 | 2016-08-26 | Miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620948357.7U CN205943983U (en) | 2016-08-26 | 2016-08-26 | Miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205943983U true CN205943983U (en) | 2017-02-08 |
Family
ID=57954795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620948357.7U Active CN205943983U (en) | 2016-08-26 | 2016-08-26 | Miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205943983U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229233A (en) * | 2016-08-26 | 2016-12-14 | 加西亚电子电器股份有限公司 | A kind of miniature circuit breaker |
-
2016
- 2016-08-26 CN CN201620948357.7U patent/CN205943983U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229233A (en) * | 2016-08-26 | 2016-12-14 | 加西亚电子电器股份有限公司 | A kind of miniature circuit breaker |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |