CN103560058B - Circuit breaker - Google Patents
Circuit breaker Download PDFInfo
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- CN103560058B CN103560058B CN201310558281.8A CN201310558281A CN103560058B CN 103560058 B CN103560058 B CN 103560058B CN 201310558281 A CN201310558281 A CN 201310558281A CN 103560058 B CN103560058 B CN 103560058B
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- binding post
- installation cavity
- control device
- bimetal leaf
- arc control
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Abstract
The invention discloses a kind of circuit breaker, comprise housing, arc control device and operating mechanism and tripping mechanism is provided with in housing, arc control device both sides are provided with the first binding post and the second binding post, arc control device and the first binding post and and the second binding post between be respectively equipped with the first installation cavity and the second installation cavity, be provided with the 3rd installation cavity between arc control device and operating mechanism; Tripping mechanism comprises electromagnetic induction part, armature and elastic component; Bimetal leaf and snap close frame is provided with in first installation cavity, snap close frame comprises operating portion and operating member, the fixed contact be connected with the second binding post conducting, the moving contact be connected with operating mechanism is provided with in second installation cavity, electromagnetic induction part and armature are all arranged in the first installation cavity, electromagnetic induction part is positioned at the end face of bimetal leaf towards the first binding post, armature is positioned at the end face of bimetal leaf towards arc control device, and elastic component is positioned at the 3rd installation cavity.The present invention has and coordinates compact, and installing space is little, and arc control device space is large, the advantage that breaking capacity is good.
Description
Technical field
The invention belongs to field of switches, particularly relate to the circuit breaker that a kind of breaking capacity is good.
Background technology
Circuit breaker, generally include housing, operating mechanism, snap close frame, tripping mechanism, moving contact, fixed contact, arc control device and bimetal leaf is provided with in housing, left and right binding post is also provided with in housing, bimetal leaf one end is connected with the binding post conducting of side, and the other end of bimetal leaf is connected with moving contact conducting; Snap close frame is hinged in housing, and snap close frame comprises the latch part coordinated with operating mechanism and the operating member coordinated with tripping mechanism.Traditional circuit breaker, its tripping mechanism is arranged on the top of arc control device usually, and because tripping mechanism has larger volume, and circuit breaker is subject to overall volume restriction, thus the volume of arc control device can only be reduced so that install tripping mechanism, limit breaking capacity and the rated current of circuit breaker.The present invention is the improvement opportunity on the basis of CN102915890A " a kind of Crow plate trip circuit breaker " patent document in publication No..
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of circuit breaker, the arc control device of this circuit breaker have the space larger than prior art, thus improve the breaking capacity of circuit breaker.
To achieve these goals, the technical solution used in the present invention is: a kind of circuit breaker, comprise housing, arc control device are provided with in housing, be provided with operating mechanism above arc control device, the arc control device left and right sides is respectively equipped with the first binding post and the second binding post, is provided with the first installation cavity between arc control device and the first binding post, be provided with the second installation cavity between arc control device and the second binding post, between arc control device and operating mechanism, be provided with the 3rd installation cavity, also be provided with tripping mechanism in housing, the armature that tripping mechanism comprises electromagnetic induction part, coordinates with electromagnetic induction part, and armature is had and the elastic component of electromagnetic induction part from trend, the bimetal leaf be connected with the first binding post conducting is provided with in first installation cavity, and with the snap close frame of housing hinge, snap close frame comprises the operating portion coordinated with operating mechanism and the operating member coordinated with tripping mechanism, the fixed contact be connected with the second binding post conducting is provided with in second installation cavity, and the moving contact to be connected with operating mechanism, it is characterized in that: described electromagnetic induction part and the armature coordinated with electromagnetic induction part are all arranged in described first installation cavity, described electromagnetic induction part is positioned at the end face of described bimetal leaf towards described first binding post, described armature is positioned at the end face of described bimetal leaf towards described arc control device, described elastic component is positioned at described 3rd installation cavity.
In said structure, electromagnetic induction part and armature are all arranged in the first installation cavity, and in the 3rd installation cavity, be only provided with elastic component, because each parts in tripping mechanism of the prior art are all arranged in the volume exclusion larger volume that the 3rd installation cavity makes the 3rd installation cavity, thus arc control device volume can only be reduced, this set of the present invention then can reduce the space of the 3rd installation cavity and the relative volume that can increase arc control device greatly, thus can reach the object of the breaking capacity improving circuit breaker.
As the further setting of the present invention, described bimetal leaf is connected with described first binding post conducting by flow distribution plate, flow distribution plate comprises the flow distribution plate main body that against described bimetal leaf, the two ends of flow distribution plate main body are respectively equipped with the flanging paster being attached at described inner walls and the abutting paster that abut described first binding post, and described flanging paster is connected with described moving contact by electric-conductor.
In said structure, bimetal leaf, by flow distribution plate and the first binding post conducting, can play shunting action, improves the breaking capacity of circuit breaker further.
As the further setting of the present invention, described electromagnetic induction part is yoke, yoke section takes the shape of the letter U structure, the opening of yoke is towards described bimetal leaf, the bottom of yoke is towards described first binding post, described bimetal leaf one end is through the opening of described yoke, and be installed in housing by metal frame, the sidewall of yoke is fixedly arranged in described inner walls, described armature comprises the hinged end with housing hinge, and the link to coordinate with the operating member of described snap close frame, link offers U-lag, the opening of U-lag and described yoke is oppositely arranged, described operating member is inserted in described U-lag.
In said structure, when short circuit current is through bimetal leaf and electromagnetic induction part, produce induced field, when this magnetic field force overcomes the elastic force of elastic component, it attracts the link of armature to rotate towards the direction of bimetal leaf, this link also drives the operating member of snap close piece to rotate, thus makes operating mechanism and the tripping of snap close frame, finally makes moving contact and fixed contact depart from mutually and cut off circuit.
As the further setting of the present invention, described first binding post is that hollow is arranged, two end faces that first binding post is relative are through, terminal block is provided with in the cavity of described first binding post, terminal block one end is arranged in described inner walls through the side of the first binding post, the other end of described terminal block is provided with abutting flanging, flexible link is provided with between described abutting flanging and described bimetal leaf, the cross section of described flexible link takes the shape of the letter U structure, described bimetal leaf is installed in housing by metal frame, described bimetal leaf is connected with described terminal block by flow distribution plate, described flow distribution plate is between described terminal block and described metal frame, the U-shaped chamber be flexible coupling described in described flow distribution plate and described metal frame are all arranged in and abut two sidewalls in described U-shaped chamber respectively.
In said structure, bimetal leaf is installed in housing by metal frame, makes it install more stable, and the setting of above-mentioned flexible link not only has the effect of conducting bimetal leaf and binding post, also has the positioning action to flow distribution plate and metal frame.
As the further setting of the present invention, described elastic component one end is connected with described armature, the elastic component other end is installed in described 3rd installation cavity by leading arc plate, dividing plate is provided with between described 3rd installation cavity and described arc control device, dividing plate is provided with leads arc plate, described in lead arc board and be located in described dividing plate.
In said structure, lead the effect that arc plate plays the mount pad of elastic component, this is led arc plate and is located in dividing plate by blocking the mode of establishing in addition, can so that installing/dismounting is changed.
As the further setting of the present invention, described arc plate of leading comprises level board, and by level board two ends respectively upward with towards downward-extension first along limit and second along limit, described level board is posted by described dividing plate one end towards described arc control device, described dividing plate offers for the described first gap of passing along limit, described first one end along limit through described gap has the location division coordinated with described elastic component.
In said structure, first along limit, second along between limit and level board respectively by curved arc transition, reduce stress and concentrate, level board and dividing plate are fitted, and first to extend upward along limit and coordinate with elastic component, and second along limit towards downward-extension and its end face is corresponding with moving contact.
As the further setting of the present invention, the two ends of described elastic component are respectively equipped with hook, described armature is provided with joint pin towards the end face of described 3rd installation cavity, joint pin offers for linking up with the centre bore caught on, described first location division coordinated with elastic component along limit of leading arc plate offers through hole, through-hole wall offers the grooving be communicated with described through hole, cutting groove depth is less than through-hole diameter, and the hook of the other end that described elastic component is relatively connected with armature coordinates along the through hole on limit with described first.
In said structure, elastic component by the mode of hook respectively with armature and with lead arc plate and be connected, be convenient to install and dismantle; The setting leading arc plate grooving so that hook to be stretched into from grooving or exited avoid hook to produce cut to leading arc plate in the process stretching into or exit, can reduce its intensity, affects useful life.
As the further setting of the present invention, described grooving is slit into upper wall and lower wall by described first along the localization part on limit, the described upper wall position corresponding with described through hole is provided with the convex arc coordinated with via profiles, and it is leg-of-mutton tip that the other end that described upper wall is connected with described through hole relatively has cross section.
Lead arranging of the convex arc structure of the upper wall of arc plate in said structure and can make up the intensity reduced owing to offering through hole, in addition, then can omit material to the setting of triangular tip of the upper wall of leading arc plate, abridged material is used for convex arc part, play the effect effectively utilizing material.
As the further setting of the present invention, described elastic component is cylindrical helical extension spring.
In said structure, this cylindrical helical extension spring, when circuit breaker normal condition, can make armature have the movement tendency deviating from yoke, is conducted at the moving contact not having can keep under External Force Acting being connected with operating mechanism and fixed contact, realize path, normally work.
Adopt such scheme, the parts of tripping mechanism of the present invention are few, and its respective outer side edges is compact, in addition, also have installing space little, and arc control device space is large, the advantage that breaking capacity is good.
Below in conjunction with accompanying drawing, the invention will be further described.
Accompanying drawing explanation
Accompanying drawing 1 is specific embodiment of the invention schematic appearance;
Accompanying drawing 2 is specific embodiment of the invention structural representation;
Accompanying drawing 3 is specific embodiment of the invention structural front view;
Accompanying drawing 4 is specific embodiment of the invention shell structure schematic diagram;
Accompanying drawing 5 is specific embodiment of the invention snap close shelf structure schematic diagram;
Accompanying drawing 6 is specific embodiment of the invention manifold structure schematic diagram;
Accompanying drawing 7 is specific embodiment of the invention yoke, armature, spring and the fit structure schematic diagram of leading arc plate;
Accompanying drawing 8 leads arc plate structure schematic diagram for the specific embodiment of the invention;
Accompanying drawing 9 is the partial enlarged drawing of A in specific embodiment of the invention accompanying drawing 2.
Embodiment
Specific embodiments of the invention are circuit breaker as shown in figs 1-9, it comprises housing 1, arc control device 14 are provided with in housing 1, operating mechanism 2 is provided with above arc control device 14, arc control device 14 left and right sides is respectively equipped with the first binding post 91 and the second binding post 92, be provided with the first installation cavity 11 between arc control device 14 and the first binding post 91, be provided with the second installation cavity 12 between arc control device 14 and the second binding post 92, between arc control device 14 and operating mechanism 2, be provided with the 3rd installation cavity 13, also be provided with tripping mechanism 4 in housing 1, the armature 42 that tripping mechanism 4 comprises electromagnetic induction part 41, coordinates with electromagnetic induction part 41, and armature 42 is had and the elastic component 43 of electromagnetic induction part 41 from trend, the bimetal leaf 8 be connected with the first binding post 91 conducting is provided with in first installation cavity 11, and the snap close frame 3 hinged with housing 1, snap close frame 3 comprises the operating portion 31 coordinated with operating mechanism 2 and the operating member 32 coordinated with tripping mechanism 4, the fixed contact 6 be connected with the second binding post 92 conducting is provided with in second installation cavity 12, and the moving contact 5 to be connected with operating mechanism 2, electromagnetic induction part 41 and the armature 42 coordinated with electromagnetic induction part 41 are all arranged in the first installation cavity 11, electromagnetic induction part 41 is positioned at the end face of bimetal leaf 8 towards the first binding post 91, armature 42 is positioned at the end face of bimetal leaf 8 towards arc control device 14, elastic component 43 is arranged in the 3rd installation cavity 13.Direction up and down involved in the present invention is all for benchmark with the direction in accompanying drawing 1.
Above-mentioned bimetal leaf 8 is connected with the first binding post 91 conducting by flow distribution plate 7, flow distribution plate 7 comprises the flow distribution plate main body 71 that against bimetal leaf 8, the two ends of flow distribution plate main body 71 are respectively equipped with the flanging paster 72 being attached at housing 1 inwall and the abutting paster 73 that abut the first binding post 91, flanging paster 72 is connected with moving contact 5 by electric-conductor 74, and this electric-conductor 74 is bent tubular structure.
Last time, electromagnetic induction part 41 was yoke, yoke section takes the shape of the letter U structure, the opening 411 of yoke is towards bimetal leaf 8, the bottom 412 of yoke is towards the first binding post 91, bimetal leaf 8 one end is through the opening 411 of yoke, and be installed in housing 1 by metal frame 81, the sidewall of yoke is fixedly arranged on housing 1 inwall, armature 42 comprises the hinged end 421 hinged with housing 1, and the link 422 to coordinate with the operating member 32 of snap close frame 3, link 422 offers U-lag 423, U-lag 423 is oppositely arranged with the opening 411 of yoke, operating member 32 is inserted in U-lag 423.
First binding post 91 is hollow setting, and two end faces that the first binding post 91 is relative are through, are provided with terminal block 93 in the cavity of the first binding post 91, and the first binding post 91 is provided with screw, and screw bear against terminal block 93 through the first binding post 91 upper wall; Terminal block 93 one end is arranged in housing 1 inwall through the through side of the first binding post 91, the other end of terminal block 93 is provided with and abuts flanging 931, abut between flanging 931 and bimetal leaf 8 and be provided with flexible link 82, the cross section of flexible link 82 takes the shape of the letter U structure, bimetal leaf 8 is installed in housing 1 by metal frame 81, bimetal leaf 8 is connected with terminal block 93 by flow distribution plate 7, flow distribution plate is between terminal block 93 and metal frame 81, and flow distribution plate 7 and metal frame 81 are all arranged in the U-shaped chamber of flexible link 82 and abut two sidewalls in U-shaped chamber respectively.
Above-mentioned bimetal leaf 8 is connected with the first binding post 91 conducting being positioned at left side, and static contact 6 is connected with the second binding post 92 conducting being positioned at right side, and static contact 6 is also provided with the contact with movable contact spring 5 conducting towards one end of movable contact spring 5.
Above-mentioned elastic component 43 one end is connected with armature 42, and elastic component 43 other end is installed in the 3rd installation cavity 13 by leading arc plate 44, is provided with dividing plate 15, leads arc plate 44 and be arranged in dividing plate 15 between the 3rd installation cavity 13 and arc control device 14.
Above-mentioned arc plate 44 of leading comprises level board 441, and by level board 441 two ends respectively upward with towards downward-extension first along limit 442 and second along limit 443, level board 441 is posted by dividing plate 15 one end towards arc control device 14, dividing plate 15 offers the one end along limit 442 through gap 151, gap 151, first passed along limit 442 for first and there is the location division 444 coordinated with elastic component 43.
The two ends of above-mentioned elastic component 43 are respectively equipped with hook 431, armature 42 is provided with joint pin 424 towards the end face of the 3rd installation cavity 13, joint pin 424 offers the centre bore caught on for hook 431, first location division 444 coordinated with elastic component 43 along limit 442 of leading arc plate 44 offers through hole 444a, through hole 444a wall offers the grooving 444b be communicated with through hole 444a, the grooving 444b degree of depth is less than through hole 444a diameter, and the hook 431 of the other end that elastic component 43 is relatively connected with armature 42 coordinates along the through hole on limit 442 with first.This elastic component 43 is cylindrical helical extension spring.
Above-mentioned grooving 444b is divided into upper wall 444c and lower wall 444d by first along the location division 444 on limit 442, the upper wall 444c position corresponding with through hole 444a is provided with the convex arc 444e with through hole 444a contoured fit, and it is leg-of-mutton tip that the other end that upper wall 444c is connected with through hole 444a relatively has cross section.
The present invention has the simple tripping mechanism 4 of structure, and this circuit breaker components coordinates compact, reduces installing space, especially reduces the installing space be positioned at above arc control device 14, increase the volume of arc control device 14, substantially increase the breaking capacity of circuit breaker.
Claims (8)
1. a circuit breaker, comprise housing, arc control device are provided with in housing, operating mechanism is provided with above arc control device, the arc control device left and right sides is respectively equipped with the first binding post and the second binding post, be provided with the first installation cavity between arc control device and the first binding post, between arc control device and the second binding post, be provided with the second installation cavity, between arc control device and operating mechanism, be provided with the 3rd installation cavity, also be provided with tripping mechanism in housing, the armature that tripping mechanism comprises electromagnetic induction part, coordinates with electromagnetic induction part, and armature is had and the elastic component of electromagnetic induction part from trend, the bimetal leaf be connected with the first binding post conducting is provided with in first installation cavity, and with the snap close frame of housing hinge, snap close frame comprises the operating portion coordinated with operating mechanism and the operating member coordinated with tripping mechanism, the fixed contact be connected with the second binding post conducting is provided with in second installation cavity, and the moving contact to be connected with operating mechanism, it is characterized in that: described electromagnetic induction part and the armature coordinated with electromagnetic induction part are all arranged in described first installation cavity, described electromagnetic induction part is positioned at the end face of described bimetal leaf towards described first binding post, described armature is positioned at the end face of described bimetal leaf towards described arc control device, described elastic component is positioned at described 3rd installation cavity, described bimetal leaf is connected with described first binding post conducting by flow distribution plate, flow distribution plate comprises the flow distribution plate main body that against described bimetal leaf, the two ends of flow distribution plate main body are respectively equipped with the flanging paster being attached at described inner walls and the abutting paster that abut described first binding post, described flanging paster is connected with described moving contact by electric-conductor.
2. circuit breaker according to claim 1, it is characterized in that: described electromagnetic induction part is yoke, yoke section takes the shape of the letter U structure, the opening of yoke is towards described bimetal leaf, the bottom of yoke is towards described first binding post, described bimetal leaf one end is through the opening of described yoke, and be installed in housing by metal frame, the sidewall of yoke is fixedly arranged in described inner walls, described armature comprises the hinged end with housing hinge, and the link to coordinate with the operating member of described snap close frame, link offers U-lag, the opening of U-lag and described yoke is oppositely arranged, described operating member is inserted in described U-lag.
3. circuit breaker according to claim 1, it is characterized in that: described first binding post is that hollow is arranged, two end faces that first binding post is relative are through, terminal block is provided with in the cavity of described first binding post, terminal block one end is arranged in described inner walls through the side of the first binding post, the other end of described terminal block is provided with abutting flanging, flexible link is provided with between described abutting flanging and described bimetal leaf, the cross section of described flexible link takes the shape of the letter U structure, described bimetal leaf is installed in housing by metal frame, described bimetal leaf is connected with described terminal block by flow distribution plate, described flow distribution plate is between described terminal block and described metal frame, the U-shaped chamber be flexible coupling described in described flow distribution plate and described metal frame are all arranged in and abut two sidewalls in described U-shaped chamber respectively.
4. circuit breaker according to claim 1, it is characterized in that: described elastic component one end is connected with described armature, the elastic component other end is installed in described 3rd installation cavity by leading arc plate, dividing plate is provided with between described 3rd installation cavity and described arc control device, dividing plate is provided with leads arc plate, described in lead arc board and be located in described dividing plate.
5. circuit breaker according to claim 4, it is characterized in that: described in lead arc plate and comprise level board, and by level board two ends respectively upward with towards downward-extension first along limit and second along limit, described level board is posted by described dividing plate one end towards described arc control device, described dividing plate offers for the described first gap of passing along limit, described first one end along limit through described gap has the location division coordinated with described elastic component.
6. circuit breaker according to claim 5, it is characterized in that: the two ends of described elastic component are respectively equipped with hook, described armature is provided with joint pin towards the end face of described 3rd installation cavity, joint pin offers for linking up with the centre bore caught on, described first location division coordinated with elastic component along limit of leading arc plate offers through hole, through-hole wall offers the grooving be communicated with described through hole, cutting groove depth is less than through-hole diameter, and the hook of the other end that described elastic component is relatively connected with armature coordinates along the through hole on limit with described first.
7. circuit breaker according to claim 6, it is characterized in that: described grooving is slit into upper wall and lower wall by described first along the localization part on limit, the described upper wall position corresponding with described through hole is provided with the convex arc coordinated with via profiles, and it is leg-of-mutton tip that the other end that described upper wall is connected with described through hole relatively has cross section.
8. the circuit breaker according to claim 1-7 any one, is characterized in that: described elastic component is cylindrical helical extension spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310558281.8A CN103560058B (en) | 2013-11-11 | 2013-11-11 | Circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310558281.8A CN103560058B (en) | 2013-11-11 | 2013-11-11 | Circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103560058A CN103560058A (en) | 2014-02-05 |
| CN103560058B true CN103560058B (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310558281.8A Active CN103560058B (en) | 2013-11-11 | 2013-11-11 | Circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103560058B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104821259B (en) * | 2015-04-24 | 2017-01-25 | 温州市新蓝天电器有限公司 | Small-sized oil cup circuit breaker |
| CN106783437B (en) * | 2017-01-20 | 2018-09-07 | 温州市新蓝天电器有限公司 | A kind of breaker |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0354275A1 (en) * | 1987-04-21 | 1990-02-14 | Circuit Breaker Industries Limited | Circuit breakers and mounting frames therefor |
| CN2114219U (en) * | 1992-01-16 | 1992-08-26 | 刘钟 | Miniature circuit breaker |
| CN102820182A (en) * | 2012-08-22 | 2012-12-12 | 温州市新蓝天电器有限公司 | Large-current miniature circuit breaker |
| CN102915890A (en) * | 2012-10-25 | 2013-02-06 | 温州市新蓝天电器有限公司 | Crow plate trip circuit breaker |
| CN203562380U (en) * | 2013-11-11 | 2014-04-23 | 温州市新蓝天电器有限公司 | Circuit breaker |
-
2013
- 2013-11-11 CN CN201310558281.8A patent/CN103560058B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0354275A1 (en) * | 1987-04-21 | 1990-02-14 | Circuit Breaker Industries Limited | Circuit breakers and mounting frames therefor |
| CN2114219U (en) * | 1992-01-16 | 1992-08-26 | 刘钟 | Miniature circuit breaker |
| CN102820182A (en) * | 2012-08-22 | 2012-12-12 | 温州市新蓝天电器有限公司 | Large-current miniature circuit breaker |
| CN102915890A (en) * | 2012-10-25 | 2013-02-06 | 温州市新蓝天电器有限公司 | Crow plate trip circuit breaker |
| CN203562380U (en) * | 2013-11-11 | 2014-04-23 | 温州市新蓝天电器有限公司 | Circuit breaker |
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| Publication number | Publication date |
|---|---|
| CN103560058A (en) | 2014-02-05 |
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