CN204696065U - Circuit breaker - Google Patents
Circuit breaker Download PDFInfo
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- CN204696065U CN204696065U CN201520456499.7U CN201520456499U CN204696065U CN 204696065 U CN204696065 U CN 204696065U CN 201520456499 U CN201520456499 U CN 201520456499U CN 204696065 U CN204696065 U CN 204696065U
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- 230000007246 mechanism Effects 0.000 claims abstract description 36
- 230000000171 quenching effect Effects 0.000 claims abstract description 16
- 238000010791 quenching Methods 0.000 claims abstract description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 210000002186 septum of brain Anatomy 0.000 claims abstract description 8
- 239000004020 conductor Substances 0.000 claims description 15
- 230000003139 buffering effect Effects 0.000 claims description 8
- 230000006978 adaptation Effects 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 7
- 230000003068 static effect Effects 0.000 claims description 7
- 238000010891 electric arc Methods 0.000 description 29
- 230000000694 effects Effects 0.000 description 8
- 238000002955 isolation Methods 0.000 description 6
- 230000007704 transition Effects 0.000 description 6
- 210000003205 muscle Anatomy 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000001771 impaired effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000009795 derivation Methods 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Arc-Extinguishing Devices That Are Switches (AREA)
- Breakers (AREA)
Abstract
The utility model discloses a kind of circuit breaker, comprise housing, contact mechanism, arc quenching system, operating mechanism and magnetic tripping mechanism, contact mechanism comprises moving contact and fixed contact, moving contact is provided with moving contact, fixed contact is provided with fixed contact, arc quenching system comprises arc control device, arc control device are provided with arc extinguishing grid pieces, arc sheet and striking assembly, described striking assembly comprises arc striking piece and lower arc striking piece, lower arc striking piece is connected with bimetal leaf, bimetal leaf and moving contact are linked, operating mechanism comprises handle, main support, linkage unit and latch components, latch components comprises snap close and tripping, magnetic tripping mechanism comprises iron core, coil and yoke, arc control device comprise into arc end and go out arc end, go out arc end and be provided with out arc shunting septal area, be respectively the first Chu Hu district and the second Chu Hu district, housing is respectively equipped with and exports with the arc of leading of the first Chu Hu district and the second UNICOM of Chu Hu district.The utility model has the advantage that breaking capacity is good, arc quenching effect is good, safe and reliable.
Description
Technical field
The utility model belongs to breaker technical field, especially a kind of striking, the circuit breaker that arc quenching effect is good and breaking capacity is high.
Background technology
Circuit breaker is that one is used for cutting off and connecting load circuit, and disengagement failure circuit Accident prevention expands thus a kind of switching device of proof load circuit safety operation.The structure of circuit breaker mainly comprises housing, contact mechanism, arc quenching system, operating mechanism and magnetic tripping mechanism, and contact mechanism comprises moving contact and fixed contact, and moving contact is provided with moving contact, and fixed contact is provided with fixed contact; Arc quenching system comprises arc control device, and arc control device are provided with arc extinguishing grid pieces, arc-extinguish chamber and arc striking piece; Operating mechanism comprises operating grip, main support, linkage unit and latch components; Magnetic tripping mechanism comprises iron core, coil and yoke.
In circuit breaker, the arc quenching principle of arc quenching system is the acting in conjunction mainly through upper and lower arc striking piece, magnetic blow-out and air-blowing, and electric arc is advanced arc control device, and electric arc is divided into some segments by arc extinguishing grid pieces, utilizes the nearly minus plate effect of electric arc to reach the object of extinguish arcs.There is following defect in circuit breaker of the prior art: 1. when electric arc is introduced into arc control device after arc extinguishing grid pieces segmentation, when deriving from the other end, owing to lacking corresponding protection and isolation, electric arc is caused to be short-circuited, again restrike, and the arcing time of electric arc is long, the breaking capacity of circuit breaker can be reduced.2. to be introduced into the magnetic field force of arc control device on the weak side for electric arc, and striking weak effect, makes the arc motion time long, so cause contact system and arc ignition system seriously impaired, affect the breaking capacity of circuit breaker.3. arc control device arc extinguishing ability, arc control device are seriously impaired, and arc-extinguish chamber easily bursts, and it is slow that electric arc enters arc control device speed, causes arc quenching effect poor.4. because operating mechanism lacks energy-storage system, circuit breaker, in making process, can cause contact bounce, makes contact seriously impaired, reduces the useful life of product.The utility model has made modified node method based on above-mentioned deficiency.
Utility model content
In order to overcome the deficiencies in the prior art, the utility model provides the circuit breaker that a kind of breaking capacity is good, arc quenching effect is good, safe and reliable.
To achieve these goals, the technical solution adopted in the utility model is: a kind of circuit breaker, comprise housing, contact mechanism, arc quenching system, operating mechanism and magnetic tripping mechanism, contact mechanism comprises moving contact and fixed contact, moving contact is provided with moving contact, fixed contact is provided with fixed contact, arc quenching system comprises arc control device, arc control device are provided with arc extinguishing grid pieces, arc-extinguish chamber and striking assembly, described striking assembly comprises arc striking piece and lower arc striking piece, lower arc striking piece is connected with bimetal leaf, bimetal leaf and moving contact are linked, operating mechanism comprises handle, main support, linkage unit and latch components, latch components comprises snap close and tripping, magnetic tripping mechanism comprises iron core, coil and yoke, arc control device comprise into arc end and go out arc end, it is characterized in that: described in go out arc end be provided with out arc shunting septal area, be respectively the first Chu Hu district and the second Chu Hu district, described housing is respectively equipped with and exports with the arc of leading of the first Chu Hu district and the second UNICOM of Chu Hu district.
In said structure, upper arc striking piece one end is positioned at above arc control device, the other end of upper arc striking piece upwards bends and is connected with fixed contact, fixed contact is arranged at this junction, one end of lower arc striking piece is positioned at below arc control device, the lower arc striking piece other end is then in contact with it towards the extension of bimetal leaf direction, handle is articulated with on housing, housing is also provided with reference column, main support, moving contact and snap close are all installed on this reference column, main support outer surface is provided with articulated column, tripping is installed on this articulated column, main support radially end face offers the mounting groove that moving contact can be supplied accommodated therein, one side of mounting groove offers the through hole with this mounting groove UNICOM, moving contact back-moving spring one end is connected with moving contact through this through hole, the moving contact back-moving spring other end is then fixed on the fixed leg of inner walls, this fixed leg is positioned at one end that handle deviates from contact mechanism, this respective outer side edges is tight, space availability ratio is high, snap close is provided with outstanding lock dog, tripping is provided with the locked groove with this lock dog adaptation, above-mentioned arc control device are positioned at the below of magnetic tripping mechanism, the installation cavity with arc extinguishing grid pieces adaptation is provided with in arc control device, the arc end that goes out of arc control device passes through after electric arc is split by arc shunting septal area and derives respectively, electric arc is avoided to be short-circuited again after exit, the phenomenon of arc reignition, this goes out arc shunting septal area and usually only arranges upper and lower region, but do not limit concrete shunting septal area quantity.
Further, the arc exit of leading in described first Chu Hu district is provided with buffering area.
In said structure, the arc outlet of leading in this first Chu Hu district is arranged on housing sidewall, this is led between arc outlet and the first Chu Hu district and is provided with retaining wall, this retaining wall and lead arc export between form buffering area, the effect of the instantaneous derivation speed delaying electric arc is played in the setting of retaining wall, and the setting of buffering area then decreases the instantaneous derived quantity of electric arc.
Further, be provided with in the installation cavity of described arc control device with arc extinguishing grid pieces adaptation be embedded groove, be also provided with the dividing wall for separating of adjacent two arc extinguishing grid pieces in installation cavity.
In said structure, though this dividing wall be arranged so that adjacent arc extinguishing grid pieces is under the effect of instantaneous large-current, do not have arc extinguishing grid pieces and attract each other, grid is bonded together, cause the phenomenon of pole short circuit up and down to occur.
Further, described arc-extinguish chamber comprises the arc sheet being installed on arc extinguishing grid pieces sidewall, and this arc sheet is provided with release groove, and arc extinguishing grid pieces sidewall offers breach, and arc sheet is embedded in this breach.
In said structure, this arc-extinguish chamber is the sheet arc sheet being separately positioned on both sides before and after arc extinguishing grid pieces, this arc sheet is also provided with upper and lower two release grooves, make smooth in exhaust in arc control device, from four direction ventilation all around, accelerate the speed that electric arc enters arc control device, improve arc extinguishing efficiency.First, portion gas can be discharged from both sides, front and back, makes air-flow be back to below moving contact through arc sheet, and the pressure increasing moving contact place promotes electric arc and moves; Meanwhile, due to the drive of air-flow, the heat at moving contact place and electric arc can be pulled away along with air-flow, can reduce the loss of moving contact; Secondly, due to two release grooves up and down of arc sheet, gas in arc control device can be reduced and, to the surge of arc sheet, guarantee that arc extinguishing grid pieces and arc sheet still can hold tightly together, ensure the even arrangement of arc extinguishing grid pieces, voltage uniform is reduced.
Further, the arc end that enters of described arc control device is provided with front and back magnetic conductor, and described striking assembly is connected with magnetic conductor before and after this.
In said structure, the arc end that enters of these arc control device forms hollow closed field by front and back magnetic conductor and upper and lower arc striking piece, and this closed field is under arcing, moving magnetic field can be strengthened, drive electric arc, accelerate its movement velocity, reduce electric arc to the infringement of contact system.
Further, described lower arc striking piece comprises the lower arc striking piece body be connected with arc control device, and lower arc striking piece body has the ennation be connected with bimetal leaf, and this ennation has the flanging parallel with lower arc striking piece body.
In said structure, this lower arc striking piece body has towards the beveled end of bimetal leaf, and the flanging of this beveled end and ennation be arranged in parallel, under the effect of above-mentioned induced field, induced current co-flow on this beveled end and flanging, forms the suction attracting electric arc, accelerates electric arc striking speed.
Further, described latch components also comprises the energy storing members between dynamic/static contact, and this energy storing members comprises the hinged end that is articulated with on housing and extended by hinged end and forms flexible abutment end.
In said structure; because sound contact of the prior art is when closing by hand; indefinite owing to opening apart from change in location; easily occur spark, damage contact, this structure adopts energy storing members to stop the electrical contact of dynamic/static contact in making process; after moving contact continues to move to fixed contact direction and the abutment end being expressed to energy storing members makes it that flexible deformation occur; moving contact on this moving contact contacts conducting with the fixed contact of fixed contact, avoids occurring spark in course of action, protection contact.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Accompanying drawing 1 is the utility model specific embodiment surface structure schematic diagram;
Accompanying drawing 2 is the utility model specific embodiment circuit breaker internal structural representation;
Accompanying drawing 3 is the mounting structure schematic diagram of the inner arc control device of the utility model specific embodiment circuit breaker device, energy storing members, moving contact;
Accompanying drawing 4 is the structural representation of arc control device in the utility model specific embodiment Shell of circuit breaker;
Accompanying drawing 5 is the partial enlarged drawing of the A of the utility model specific embodiment accompanying drawing 4;
Accompanying drawing 6 is the structural representation of the utility model specific embodiment arc extinguishing grid pieces and arc-extinguish chamber;
Accompanying drawing 7 is the structural representation of the utility model specific embodiment arc-extinguish chamber;
Accompanying drawing 8 is the perspective view of arc striking piece main perspective degree under the utility model specific embodiment;
Accompanying drawing 9 is arc striking piece structural front view under the utility model specific embodiment;
Accompanying drawing 10 is the three-dimensional structure diagram of arc striking piece posterior view point under the utility model specific embodiment;
Accompanying drawing 11 is the assembly structure stereogram of the utility model specific embodiment arc striking piece and magnetic conductor;
Accompanying drawing 12 is the structural front view of the utility model specific embodiment operating mechanism;
Accompanying drawing 13 is the perspective view of the utility model specific embodiment operating mechanism;
Accompanying drawing 14 is the mounting structure schematic diagram of the utility model specific embodiment main support and tripping and moving contact;
Accompanying drawing 15 is the STRUCTURE DECOMPOSITION figure of the utility model specific embodiment snap close and tripping;
Accompanying drawing 16 is the structural representation of the utility model specific embodiment energy storing members;
Housing 1, reference column 11, spring stack 12, fixed axis 13, lead arc outlet 131,
Iron core 21, yoke 22, coil 23,
Arc control device 31, enter arc end 311, go out arc end 312, first Chu Hu district 312a, the second Chu Hu district 312b, buffering area 312c, retaining wall 312d, be embedded groove 313, the prominent muscle 314 of isolation, arc extinguishing grid pieces 32, arc-extinguish chamber 33, arc sheet 331, release groove 332, upper arc striking piece 341, lower arc striking piece 342, lower arc striking piece body 3421, beveled end 3422, transition limit 3423, inflection limit 3424, brace 3425, front magnetic conductor 351, rear magnetic conductor 352, insulating part 353,
Handle 41, main support 42, articulated column 421, mounting groove 422, through hole 423, connecting rod 43, snap close 44, lock dog 441, tripping 45, locked groove 451, tripping back-moving spring 452, hinged end 453, energy storing members 46, hinged end 461, flexible abutment end 462, registration arm 463, linking arm 464, moving contact 51, moving contact 511, moving contact back-moving spring 512, abutting block 513, fixed contact 52, fixed contact 521, bimetal leaf 6.
Embodiment
Specific embodiment of the utility model is circuit breaker as illustrated in figs. 1-16, comprise housing 1, contact mechanism, arc quenching system, operating mechanism and magnetic tripping mechanism, contact mechanism comprises moving contact 51 and fixed contact 52, moving contact 51 is provided with moving contact 511, fixed contact 52 is provided with fixed contact 521, arc quenching system comprises arc control device 31, arc control device 31 are provided with arc extinguishing grid pieces 32, arc-extinguish chamber 33 and striking assembly, striking assembly comprises arc striking piece 341 and lower arc striking piece 342, upper arc striking piece 341 one end is positioned at above arc control device 31, the other end of upper arc striking piece 341 upwards bends and is connected with fixed contact 52, fixed contact 521 is arranged at this junction, one end of lower arc striking piece 342 is positioned at below arc control device 31, lower arc striking piece 342 other end is then in contact with it towards the extension of bimetal leaf 6 direction, bimetal leaf 6 and moving contact 51 are linked, operating mechanism comprises handle 41, main support 42, connecting rod 43 and latch components, latch components comprises snap close 44 and tripping 45, handle 41 is articulated with on housing 1, housing 1 is also provided with reference column 11, main support 42, moving contact 51 and snap close 44 are all installed on this reference column 11, main support 42 outer surface is provided with articulated column 421, tripping 45 is installed on this articulated column 421, handle 41 is connected by connecting rod 43 with tripping 45, main support 42 radially end face offers the mounting groove 422 that moving contact 51 can be supplied accommodated therein, one side of mounting groove 422 offers the through hole 423 with this mounting groove 422 UNICOM, moving contact back-moving spring 512 one end is connected with moving contact 51 through this through hole 423, moving contact back-moving spring 512 other end is then fixed on the spring stack 12 of housing 1 inwall, spring stack 12 and contact assembly lay respectively at the left and right sides of handle 41, snap close 44 is provided with outstanding lock dog 441, tripping 45 is provided with the locked groove 451 with this lock dog 441 adaptation, above-mentioned tripping back-moving spring 452 one end is installed in the hinged end 453 of tripping 45, tripping back-moving spring 452 other end is then fixed on snap close 44, above-mentioned magnetic tripping mechanism comprises iron core 21 and yoke 22, iron core 21 is arranged in yoke 22 and iron core 21 is wound with coil 23, arc control device 31 comprise into arc end 311 and go out arc end 312, go out arc end 312 and be provided with out arc shunting septal area, be respectively the first Chu Hu district 312a and the second Chu Hu district 312b, housing 1 is respectively equipped with and exports 131 with the arc of leading of the first Chu Hu district 312a and the second 312b UNICOM of Chu Hu district, above-mentioned arc control device 31 are positioned at the below of magnetic tripping mechanism, the installation cavity with arc extinguishing grid pieces 32 adaptation is provided with in arc control device 31, the arc end 312 that goes out of arc control device 31 passes through after electric arc is split by arc shunting septal area and derives respectively, electric arc is avoided to be short-circuited again after exit, the phenomenon of arc reignition, the arc outlet 131 of leading of the first Chu Hu district 312a is arranged on housing 1 sidewall, the arc of leading of the second Chu Hu district 312b exports 131 and is arranged on bottom housing 1.Fore-and-aft direction up and down in the present invention is as the criterion with the direction up and down in Fig. 2, and opening housing side is front side, and the end face at housing place is rear side.
The arc of leading of above-mentioned first Chu Hu district 312a exports 131 places and is provided with buffering area 312c.The arc outlet 131 of leading of this first Chu Hu district 312a is arranged on housing 1 sidewall, this is led between arc outlet 131 and the first Chu Hu district 312a and is provided with retaining wall 312d, having above retaining wall 312d can for the breach of arc-through, this retaining wall 312d and lead arc export 131 between form buffering area 312c, the effect of the instantaneous derivation speed delaying electric arc is played in the setting of retaining wall 312d, and the setting of buffering area 312c then decreases the instantaneous derived quantity of electric arc.
Be provided with in the installation cavity of above-mentioned arc control device 31 with arc extinguishing grid pieces 32 adaptation be embedded groove 313, arc extinguishing grid pieces 32 is installed on this one by one and is embedded in groove 313, and be also provided with dividing wall between adjacent two arc extinguishing grid pieces 32 both are separated, avoid both under big current moment impact, bonded to each other.Entering arc end 311 and going out arc end 312 of arc control device 3131 is respectively equipped with and is intervally distributed with the prominent muscle 314 of isolation, dash forward muscle 314 and the isolation going out arc end 312 of the isolation of entering arc end 311 dashes forward that muscle 314 is coaxial to be arranged the muscle 314 and isolation at these two ends is dashed forward and form the dividing wall for separating of adjacent two arc extinguishing grid pieces 32, the interval trough between dividing wall and dividing wall formed install for arc extinguishing grid pieces 32 be embedded groove 313.
Above-mentioned arc-extinguish chamber 33 comprises the arc sheet 331 being installed on arc extinguishing grid pieces 32 sidewall, this arc sheet 331 is provided with release groove 332, arc extinguishing grid pieces 32 sidewall offers breach, arc sheet 331 is embedded in this breach, arc sheet 331 is also provided with the mounting groove in longitudinal arrangement, arc sheet 331 is embedded on the mounting blocks on arc extinguishing grid pieces 32 by mounting groove.This arc sheet 331 is front and back laminated structure, front and back two panels is embedded respectively in the breach of arc extinguishing grid pieces 32 sidewall, the front and back of this arc sheet 331 and upper and lower end face are all formed and for the outlet of airflow, can make smooth gas discharge in arc control device 31, accelerate arc leading and suppressing speed.
Above-mentioned lower arc striking piece 342 comprises the lower arc striking piece body 3421 be connected with arc control device 31, lower arc striking piece body 3421 has the ennation be connected with bimetal leaf 6, this ennation comprises transition limit 3423 and inflection limit 3424, the initiating terminal on transition limit 3423 connects with beveled end 3422 and transition limit 3423 is contrary with the current direction of beveled end 3422, the end on transition limit 3423 is connected with inflection limit 3424, and this inflection limit 3424 is between beveled end 3422 and transitioning end and inflection limit 3424 is identical with the current direction of beveled end 3422.Because above-mentioned beveled end 3422 is consistent with the sense of current on ennation on the inflection limit 3424 of beveled end 3422, form attraction, the effect accelerating electric arc striking speed can be played.This ennation has the upper following and left and right flanging of parallelogram sturcutre, and left and right flanging forms above-mentioned inflection limit 3424 and transition limit 3423 respectively, and this top has the brace 3425 be connected with bimetal leaf 6 towards right extension.
The arc end 311 that enters of above-mentioned arc control device 31 is provided with front and back magnetic conductor 351,352, and striking assembly is connected with magnetic conductor before and after this 351,352.The end face that front magnetic conductor 351 deviates from rear magnetic conductor 352 is embedded with insulating part 353, and the end face that rear magnetic conductor 352 deviates from front magnetic conductor 351 is also embedded with insulating part 353.Circular induced current is formed between magnetic conductor 351,352 and upper and lower arc striking piece 342 before and after this, induced current is when static contact and upper arc striking piece 341, its sense of current is consistent, produce suction, accelerate the striking speed of electric arc, induced current is drawn the ennation passing through its beveled end 3422 and parallelogram structure successively by lower arc striking piece 342 through arc control device 31, beveled end 3422 is consistent with the sense of current on ennation on the flanging of beveled end 3422, form attraction, accelerate electric arc striking speed further; When induced current is through ennation and bimetal leaf 6, the flanging near bimetal leaf 6 on ennation is contrary with the inductive current direction on bimetal leaf 6, then form repulsion, accelerates electric arc and moves towards arc control device 31 direction and bimetal leaf 6 one end respectively; Inductive current direction between bimetal leaf 6 with one end that moving contact 51 connects is contrary, also form mutual expelling force, accelerate electric arc respectively and move towards arc control device 31 and bimetal leaf 6 direction, the setting of this magnetizer structure, accelerate electric arc striking speed on the whole, improve arc extinguishing efficiency.
Above-mentioned latch components also comprises the energy storing members 46 between dynamic/static contact 51,52, and this energy storing members 46 comprises the hinged end 461 that is articulated with on housing 1 and extended by hinged end 461 and forms flexible abutment end 462.This flexible abutment end 462 between dynamic/static contact 51,52, moving contact 51 be provided with coordinate with this flexible abutment end 462 abut block 513, this abutting block 513 has pointed end.
Above-mentioned energy storing members 46 is made for elastomeric material, the hinged end 461 of energy storing members 46 is hollow cylinder, this hollow cylinder is sheathed on the fixed axis 13 of Shell of circuit breaker 1, hinged end 461 side extends to form registration arm 463 towards handle 41 direction, hinged end 461 opposite side is connected with flexible abutment end 462 one by linking arm 464, and this registration arm 463 be arranged in parallel with linking arm 464.Because sound contact 521 of the prior art is when closing by hand, indefinite owing to opening apart from change in location, easily there is spark, damage contact, this structure adopts energy storing members 46 to stop the electrical contact of dynamic/static contact 52 in making process, after moving contact 51 moves to certain distance and the abutment end continuing to be expressed to energy storing members 46 to the motion of fixed contact 52 direction makes it that flexible deformation occur, moving contact 511 on this moving contact 51 just contacts conducting with the fixed contact 521 of fixed contact 52, to avoid in course of action conducting repeatedly to disconnect and occur the phenomenon of spark, play the effect that protection contact extends its useful life.
The utility model is not limited to above-mentioned embodiment; persons skilled in the art are content disclosed in the utility model; other multiple embodiments can be adopted to implement of the present utility model; or every employing project organization of the present utility model and thinking; do simple change or change, all fall into protection range of the present utility model.
Claims (7)
1. a circuit breaker, comprise housing, contact mechanism, arc quenching system, operating mechanism and magnetic tripping mechanism, contact mechanism comprises moving contact and fixed contact, moving contact is provided with moving contact, fixed contact is provided with fixed contact, arc quenching system comprises arc control device, arc control device are provided with arc extinguishing grid pieces, arc-extinguish chamber and striking assembly, described striking assembly comprises arc striking piece and lower arc striking piece, lower arc striking piece is connected with bimetal leaf, bimetal leaf and moving contact are linked, operating mechanism comprises handle, main support, linkage unit and latch components, latch components comprises snap close and tripping, magnetic tripping mechanism comprises iron core, coil and yoke, arc control device comprise into arc end and go out arc end, it is characterized in that: described in go out arc end be provided with out arc shunting septal area, be respectively the first Chu Hu district and the second Chu Hu district, described housing is respectively equipped with and exports with the arc of leading of the first Chu Hu district and the second UNICOM of Chu Hu district.
2. circuit breaker according to claim 1, is characterized in that: the arc exit of leading in described first Chu Hu district is provided with buffering area.
3. circuit breaker according to claim 1, is characterized in that: be provided with in the installation cavity of described arc control device with arc extinguishing grid pieces adaptation be embedded groove, be also provided with the dividing wall for separating of adjacent two arc extinguishing grid pieces in installation cavity.
4. circuit breaker according to claim 1, is characterized in that: described arc-extinguish chamber comprises the arc sheet being installed on arc extinguishing grid pieces sidewall, and this arc sheet is provided with release groove, and arc extinguishing grid pieces sidewall offers breach, and arc sheet is embedded in this breach.
5. circuit breaker according to claim 1, is characterized in that: the arc end that enters of described arc control device is provided with front and back magnetic conductor, and described striking assembly is connected with magnetic conductor before and after this.
6. circuit breaker according to claim 5, it is characterized in that: described lower arc striking piece comprises the lower arc striking piece body be connected with arc control device, lower arc striking piece body has the ennation be connected with bimetal leaf, and this ennation has the flanging parallel with lower arc striking piece body.
7. circuit breaker according to claim 1, is characterized in that: described latch components also comprises the energy storing members between dynamic/static contact, and this energy storing members comprises the hinged end that is articulated with on housing and extended by hinged end and forms flexible abutment end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520456499.7U CN204696065U (en) | 2015-06-26 | 2015-06-26 | Circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520456499.7U CN204696065U (en) | 2015-06-26 | 2015-06-26 | Circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204696065U true CN204696065U (en) | 2015-10-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520456499.7U Active CN204696065U (en) | 2015-06-26 | 2015-06-26 | Circuit breaker |
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| CN (1) | CN204696065U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104934270A (en) * | 2015-06-26 | 2015-09-23 | 温州罗格朗电器有限公司 | Circuit breaker |
| CN107359087A (en) * | 2017-06-08 | 2017-11-17 | 李文杰 | A kind of high-breaking miniature breaker |
| CN108666177A (en) * | 2017-03-31 | 2018-10-16 | 温州圣普电气有限公司 | High current miniature circuit breaker |
| CN112382550A (en) * | 2020-11-30 | 2021-02-19 | 周义才 | Magnetic arc-blowing circuit breaker with double arc-extinguishing chambers |
-
2015
- 2015-06-26 CN CN201520456499.7U patent/CN204696065U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104934270A (en) * | 2015-06-26 | 2015-09-23 | 温州罗格朗电器有限公司 | Circuit breaker |
| CN108666177A (en) * | 2017-03-31 | 2018-10-16 | 温州圣普电气有限公司 | High current miniature circuit breaker |
| CN107359087A (en) * | 2017-06-08 | 2017-11-17 | 李文杰 | A kind of high-breaking miniature breaker |
| CN112382550A (en) * | 2020-11-30 | 2021-02-19 | 周义才 | Magnetic arc-blowing circuit breaker with double arc-extinguishing chambers |
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