CN205159253U - Circuit breaker - Google Patents
Circuit breaker Download PDFInfo
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- CN205159253U CN205159253U CN201520752025.7U CN201520752025U CN205159253U CN 205159253 U CN205159253 U CN 205159253U CN 201520752025 U CN201520752025 U CN 201520752025U CN 205159253 U CN205159253 U CN 205159253U
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- control device
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- circuit breaker
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Abstract
The utility model discloses circuit breaker, include the casing explosion chamber inside with arranging the casing in and the connection terminal of casing both sides, one side of explosion chamber sets up a plurality of air outlet channel and links to each other with the explosion chamber, the casing links to each other being close to the other end that explosion chamber one side was equipped with a plurality of gas vents and air outlet channel. The utility model discloses circuit breaker sets up a plurality of air outlet channel through the rear side at the explosion chamber, and it is continuous with air outlet channel to set up a plurality of gas vents on the casing, can effectively reduce circuit breaker and divide the high atmospheric pressure who produces when breaking, reduces the resistance to the electric arc motion, and messenger circuit breaker can rapid interrupter. Air outlet channel adopts the layering setting for the air outlet channel that can pass through different level through explosion chamber exhaust air current discharges, reaches rapid interrupter's effect.
Description
Technical field
The utility model relates to Low Voltage Electrical Apparatus, particularly a kind of circuit breaker.
Background technology
Along with electric equipment increases gradually, the development trend of progressively increase and the circuit breaker miniaturization of net capacity, needs circuit breaker to have stronger breaking capacity, becomes be even more important as the arc quenching system of circuit breaker important component part and the performance of operating mechanism.Increasing along with power consumption equipment, form-making design and the Electrical Safety problem of product are more and more subject to people's attention.
Arc control device in existing arc quenching system mostly are symmetrical structure, in miniature circuit breaker, because inner space is little, breaking capacity requires high, be limited to the distribution of contact, if arc control device symmetric design, then the volume of arc control device will reduce, and be unfavorable for the raising of breaking capacity.The exhaust channel structure that arc quenching system many employings single channel, unit are put simultaneously designs, and give vent to anger when easily causing disjunction to test smooth, electric arc easily punctures in arc control device short circuit behind simultaneously, greatly weakens the circuit breaker breaking capacity of circuit breaker.
The operating mechanism of existing circuit breaker, the reposition element of the lever of operating mechanism adopts plastic material, structural design is Wave shape spring gonosome, utilize the elastomeric crimp of waveform to produce deformation power and realize lever reset, this resetting technique is limited to material reason, easy generation plastic deformation causes inefficacy, is unfavorable for the reliability of product.
There is the danger that binding post depth as shallow human body easily touches with terminal screw in existing breaker structure, a part of manufacturer adopts single binding post to increase the design of single boss structure, and overall appearance is discontinuous, affects product attractive in appearance.
Summary of the invention
The purpose of this utility model is the defect overcoming prior art, provides a kind of simple and compact for structure, stable performance, the circuit breaker that cost is low.
For achieving the above object, the utility model have employed following technical scheme:
A kind of circuit breaker, comprise housing 1 and be placed in the arc control device 15 of housing 1 inside and the junction block 17 of housing 1 both sides, the side of described arc control device 15 arranges multiple outlet passageway and is connected with arc control device 15, and described housing 1 is provided with multiple exhaust outlet in close arc control device 15 side and is connected with the other end of outlet passageway.
Further, described outlet passageway divides multilayer to arrange, and every layer arranges multiple outlet passageway.
Further, described exhaust outlet is two, described two exhaust outlets are respectively first row gas port 102 and second exhaust port 103, and described first row gas port 102 is located at the side near junction block 17 in housing 1, and described second exhaust port 103 is located at housing 1 near side, bottom.
Further, the side of described arc control device 15 is parallel to housing 1 layering and is provided with two-layer outlet passageway layer, and be respectively upper strata outlet passageway and lower floor's outlet passageway, upper strata outlet passageway and lower floor's outlet passageway are divided into two outlet passageways by the dividing plate perpendicular to housing 1 respectively.
Further, described upper strata outlet passageway comprises housing 1 to the extended upper partition 104 of arc control device 15, upper partition 104 is circular arc dividing plate, upper strata outlet passageway is divided into the first upper strata outlet passageway 105 and the second upper strata outlet passageway 106, one end of first upper strata outlet passageway 105 and the second upper strata outlet passageway 106 extends to the side of arc control device 15, and the other end extends to second exhaust port 103 place.
Further, described lower floor outlet passageway comprises housing 1 to the extended lower partition 109 of arc control device 15, lower floor's outlet passageway is divided into the first lower floor's outlet passageway 107 and second lower floor's outlet passageway 108, one end of first lower floor's outlet passageway 107 extends to the side of arc control device 15, the other end extends to first row gas port 102 place, one end of second lower floor's outlet passageway 108 extends to the side of arc control device 15, and the other end extends to second exhaust port 103 place.
Further, described first lower floor's outlet passageway 107 is surge chamber, and surge chamber is provided with air inlet 107a towards the side of arc control device 15, the opposite side of surge chamber and the connection of first row gas port 102.
Further, also comprise arc leading angle 16a, lower arc leading angle 16b, fixed contact 10, moving contact 11, to be fixed on housing 1 and exposed handle 2 outside housing 1 and the operating mechanism that is connected with handle 2, described fixed contact 10 and lower arc leading angle 16b are fixedly installed in housing 1, one end of described moving contact 11 is connected with operating mechanism, described upper arc leading angle 16a is U-shaped, the other end is connected with fixed contact 10, lower arc leading angle 16b is positioned at the bottom of housing 1, the lower end base of arc control device 15 is stretched in one end of lower arc leading angle 16b, striking passage is formed between described upper arc leading angle 16a and lower arc leading angle 16b, one end of striking passage is near the zone of action of fixed contact 10 and moving contact 11, the other end extends the striking mouth place to arc control device 15, described outlet passageway is connected with the other end of arc control device 15.
Further, described operating mechanism comprises U-shaped bar 3, tripping 4, snap close 5, contact support 6 and bearing 9, one end of described U-shaped bar 3 is connected with handle 2, the other end is connected with snap close 5, described snap close 5 is connected with tripping 4 hasp, and described snap close 5, tripping 4 and contact support that 6 pivotables are connected on bearing 9, and it is inner that bearing 9 pivotable is connected to housing 1, described snap close 5, tripping 4 pivotable are connected to one end of bearing 9, and contact supports that 6 pivotables are connected to the other end of bearing 9.
Further, also comprise tripping coil 12, bimetal leaf 8 and dropout hook 7, one end of described dropout hook 7 is connected with snap close 5, the other end and bimetal leaf 8 are arranged in opposite directions, and described operating mechanism is positioned at the side of housing 1, and tripping coil 12 is positioned in the middle part of housing 1 and is oppositely arranged with operating mechanism, described arc control device 15 are located at bottom housing 1, are positioned at the below of tripping coil 12; Described tripping coil 12 is provided with striker 121 towards snap close 5 one end, and when short circuit, the striker 121 of tripping coil 12 ejects immediate roof opening lock catch 5; When circuit overloads, bimetal leaf 8 bending touching dropout hook 7 drives tripping 4 and snap close 5 to trip cut-out circuit.
The utility model circuit breaker is by arranging multiple outlet passageway at the rear side of arc control device, housing is arranged multiple exhaust outlet to be connected with outlet passageway, the hyperbar produced when effectively can reduce circuit breaker disjunction, reduces the resistance to arc motion, enables circuit breaker fast arc extinction.Outlet passageway adopts layering to arrange, and the air-flow of discharging through arc control device 15 can be discharged by the outlet passageway of different aspects, reach the effect of fast arc extinction.
Accompanying drawing explanation
Fig. 1 is the internal structure schematic diagram of the utility model circuit breaker;
Fig. 2 is the structural representation of the utility model operating mechanism;
Fig. 3 is the structural representation in another orientation of the utility model operating mechanism;
Fig. 4 is the exploded view of the utility model operating mechanism;
Fig. 5 is the utility model circuit breaker snap close and the schematic diagram linked up with of threading off;
Fig. 6 is the structural representation that the utility model contact of breaker is supported;
Fig. 7 is the plane graph that the utility model contact of breaker is supported;
Fig. 8 is the structural representation of the utility model circuit breaker torque spring;
Fig. 9 is the structural representation of the utility model circuit breaker internal arc quenching system;
Figure 10 is the scheme of installation of the utility model bearing and snap close and back-moving spring;
Figure 11 is the exploded view of the utility model bearing and snap close and back-moving spring;
Figure 12 is the structural representation of the utility model arc control device;
Figure 13 is the structural representation of the utility model arc extinguishing grid pieces;
Figure 14 is the structural representation of the utility model arc quenching system;
Figure 15 is the structural representation of the annular boss of the utility model circuit breaker both sides junction block;
Figure 16 is the plane graph of the annular boss of the utility model circuit breaker both sides junction block.
Embodiment
Below in conjunction with the embodiment that accompanying drawing 1 to 16 provides, further illustrate the embodiment of circuit breaker of the present utility model.Circuit breaker of the present utility model is not limited to the description of following examples.
As shown in Fig. 1,9, the utility model circuit breaker, comprises housing 1, to be fixed on housing 1 and exposed handle 2 outside housing 1, the operating mechanism be connected with handle 2, delayed releasing system, instantaneous trip system and arc quenching system.Also comprise moving contact 11 and fixed contact 10, fixed contact 10 is fixedly installed in housing, and described operating mechanism is connected with moving contact 11, and operating mechanism can drive moving contact 11 to rotate, and makes the closing of contact of moving contact 11 and fixed contact 10 and is separated, and connects and cuts off circuit.Described arc quenching system is located at bottom housing 1, the electric arc produced during for eliminating circuit breaker break-make.
As Figure 1-4, described operating mechanism comprises U-shaped bar 3, tripping 4, snap close 5, contact support 6 and bearing 9, one end of described U-shaped bar 3 is connected with handle 2, the other end is connected with tripping 4, snap close 5 is connected with tripping 4 hasp, and described snap close 5, tripping 4 and contact support that 6 pivotables are connected on bearing 9, and it is inner that bearing 9 pivotable is connected to housing 1, described snap close 5, tripping 4 pivotable are connected to one end of bearing 9, and contact supports that 6 pivotables are connected to the other end of bearing 9.
As Figure 1-4, described delayed releasing system and instantaneous trip system are arranged at the both sides of operating mechanism respectively.
Described delayed releasing system comprises the bimetal leaf 8 and dropout hook 7 that are fixedly installed on housing 1 operating mechanism side, described dropout hook 7 is connected to one end of snap close 5, side and the dropout hook 7 of described bimetal leaf 8 are oppositely arranged, when circuit overloads, bimetal leaf 8 heated bending touching dropout hook 7 drives tripping 4 and snap close 5 to trip.
Described instantaneous trip system comprises tripping coil 12.Described tripping coil 12 is provided with striker 121 towards snap close 5 one end, and when short circuit, the striker 121 of tripping coil 12 ejects immediate roof opening lock catch 5, and snap close 5 and tripping 4 are triped, and cuts off circuit.
As shown in Figure 9, described arc quenching system comprises arc control device 15, upper arc leading angle 16a, lower arc leading angle 16b, described fixed contact 10 and lower arc leading angle 16b are fixedly installed in housing 1, one end of described moving contact 11 is connected with operating mechanism, described upper arc leading angle 16a is U-shaped, the other end is connected with fixed contact 10, lower arc leading angle 16b is positioned at the bottom of housing 1, the lower end base of arc control device 15 is stretched in one end of lower arc leading angle 16b, striking passage is formed between described upper arc leading angle 16a and lower arc leading angle 16b, one end of striking passage is near the zone of action of fixed contact 10 and moving contact 11, the other end extends the striking mouth place to arc control device 15.The rear side of described arc control device 15 is also provided with outlet passageway.The electric arc that arc quenching system makes circuit breaker produce in make and break process entered arc leading angle and entered arc control device rapidly, and absorbed and discharge the high heat gas of electric arc generation.
As shown in Figure 4, particularly, described operating mechanism also comprises contact and supports fixed axis 95, and described snap close 5, tripping 4 and contact support that 6 pivotables are connected on bearing 9; One end of described bearing 9 is provided with the first fixed leg 92 and the second fixed leg 93, described snap close 5 is pivoted on the first fixed leg 92, described tripping 4 is pivoted on the second fixed leg 93, the middle part of bearing 9 is provided with the first fixing hole 94, by contact, described contact support 6 supports that fixed axis 95 and the first fixing hole 94 are pivoted on bearing 9, contact support 6 is fixed by torque spring 13, support that fixed axis 95 is arranged on housing 1 through the first fixing hole 94, bearing 9 can rotate around support fixed axis 95.
As shown in Figure 4, the other end of described bearing 9 is provided with the first limited post 91 and the second limited post 96, and described contact supports that one end of 6 is between the first limited post 91 and the second limited post 96.The opposite side of bearing 9 is provided with the first limited post 91 and the second limited post 96, contact support 6 one end between the first limited post 91 and the second limited post 96, contact support 6 movement travel by the first limited post 91 and the second limited post 96 institute spacing.
As shown in Figure 4,5, described snap close 5 comprises the first snap close end arms 51 and the second snap close end arms 52, the end of described first snap close end arms 51 and tripping 4 snap fit, described dropout hook 7 and the second snap close end arms 52 are fixed, and the end of described second snap close end arms 52 is provided with towards the trip link 53 of the striker 121 of tripping coil 12; The side of described second snap close end arms 52 is protruded the middle part being provided with snap close 5 described in spacing preiection 54 and is provided with the 3rd fixed leg 55, and described snap close 5 is pivoted on the first fixed leg 92 by the 3rd fixed leg 55.
The utility model circuit breaker, described contact support 6 is two, is respectively phase line contact and supports and the support of neutral line contact, also arrange two to the fixed contact 10 coordinated with the support of phase line contact and the support of neutral line contact respectively and moving contact 11; The middle part of bearing 9 is provided with the first fixing hole 94, by contact, the support of described phase line contact and the support of neutral line contact support that fixed axis 95 and the first fixing hole 94 are pivoted on the both sides of bearing 9.The utility model circuit breaker arranges phase line contact and supports and the support of neutral line contact, phase line contact is supported and neutral line contact support relative set a pair moving contact and fixed contact respectively, handle once-through operation can control phase line and neutral current loop simultaneously, make electrical equipment rapidly and electrical network disconnect.
As shown in figs 6-8, described contact support 6 comprises registration arm 61 and motion arm 62; One end of described motion arm 62 is connected with moving contact 11, the middle part of described registration arm 61 is provided with the second groove 611, the side being provided with torque spring fixed axis 601, second groove 611 in second groove 611 forms spring arm spacing block set 63, and described registration arm 61 is protruded to side and is provided with conflict projection 612.Also comprise two torque springs 13, the both sides of described bearing 9 are respectively equipped with the first limited post 91, described two torque springs 13 are individually fixed in two contacts and support on the torque spring fixed axis 601 of 6, after the compression of two ends spring arm respectively by the first limited post 91 and spring arm spacing block set 63 institute spacing; To contact, one end spring arm of described torque spring 13 is supported that 6 sides extend and is provided with torque spring stiff end 133, described two contact supports 6 are respectively equipped with the second fixing hole 602 coordinated with torque spring stiff end 133.
Described operating mechanism also comprises the main spring 19 that whole operating mechanism is resetted, and one end of main spring 19 is connected with operating mechanism, and the other end offsets with housing 1 and is connected.
The course of action of circuit breaker operation mechanism is as follows: during breaker closing, handle 2 drives tripping 4 to rotate, further drive snap close 5, contact support 6 and bearing 9 rotate, snap close 5 and tripping 4 hasp link together, and contact is supported the moving contact 11 of 6 one end and is fixed on the closed connection circuit of fixed contact 10 of housing 1 inside, now, main spring 19 is by compressed energy-storage, and torque spring 13 two ends end arms is also by compressed energy-storage; When breaker open operation, trip band moving contact support 6 and bearing 9 of snap close 5 and tripping 4 rotates, for contact, torque spring 13 is supported that 6 contact supports reset and provided power, by the main spring 19 that compresses for the reset of whole operating mechanism provides power.
As shown in Figure 10,11, the utility model circuit breaker, is provided with the back-moving spring 18 that snap close 5 is resetted, during circuit breaker tripping between snap close 5 and bearing 9, snap close 5 and tripping 4 are triped and after driving breaker open operation, back-moving spring 18 drives snap close 5 and tripping 4 hasp to link together.The utility model circuit breaker, arrange back-moving spring by being connected in pivotable between snap close on bearing and bearing, realize the reliable reset of snap close, solve the yielding inefficacy of plastics elastic body, reset insecure problem.
As described in Figure 10-11, described back-moving spring 18 is torsion spring, described back-moving spring 18 is fixed on the opposite side of bearing 9, comprise the first spring arm 181 and the second spring arm 182, described bearing 9 is provided with the 4th fixed leg 97 of fixed reset spring 18, the middle part of described 4th fixed leg 97 is provided with the gap 971 coordinated with the first spring arm 181, described snap close 5 is provided with the snap close projection 56 coordinated with the second spring arm 182, and the first spring arm 181 of described back-moving spring 18 and the second spring arm 182 are spacing by snap close projection 56 institute of the gap 971 of the 4th fixed leg 97 and snap close 5 respectively.The gap 971 arranged in the middle part of described 4th fixed leg 97 can make the 4th fixed leg 97 scatter from centre to both sides, and fixing of such back-moving spring 18 is just more reliable and more stable.During installation, first spring arm 181 of back-moving spring 18 snaps in the gap 971 of the 4th fixed leg 97, spacing by snap close projection 56 after second spring arm 182 stress and deformation, there is relative displacement between snap close 5 and bearing 9 after, back-moving spring 18 provides the restoring force of reset for snap close 5.
As shown in figs. 10-11, described snap close projection 56 protrudes to side and is provided with the snap close buckle projection 561 be clasped with the first spring arm 181, the end of described first spring arm 181 towards snap close projection 56 bend extend be provided with coordinate with snap close buckle projection 561 first extend spring arm 184.Snap close projection 56 side is protruded and is arranged snap close buckle projection 561, prevent from skidding off during the first spring arm 181 stressed action, first spring arm 181 bends extension towards snap close projection 56 and is provided with the first extension spring arm 184, first extends spring arm 184 cooperatively interacts with snap close buckle projection 561, makes the installation of back-moving spring 18 more reliable and stable.
As shown in figure 11, described back-moving spring 18 also comprises spiral helicine back-moving spring body 183, described back-moving spring body 183 is sleeved on the 4th fixed leg 97 fixing, one end of described back-moving spring body 183 extends to form the first spring arm 181 to side, the other end of described back-moving spring body 183 is provided with the second spring arm 182 from back-moving spring body 183 internal cavities through one end extension to back-moving spring body 183.
As illustrated by figs. 12-13, the utility model arc-extinguishing chamber of circuit breaker 15 grid location-plate 152 of comprising one group of arc extinguishing grid pieces 151 and one group of arc extinguishing grid pieces 151 being fixed; The side upper corners of described one group of arc extinguishing grid pieces 151 is provided with striking groove 150, also comprise arc leading angle 16a, described upper arc leading angle 16a is positioned at the side of arc control device 15, and one end of upper arc leading angle 16a extend in striking groove 150 introduces the electric arc produced in arc control device 15.The utility model circuit breaker arranges striking groove by the bight of the arc extinguishing grid pieces at arc control device, and one end of upper arc leading angle can be stretched in the striking groove of arc control device; By the optimization to arc quenching chamber structure, in the space that circuit breaker internal is limited, make the volume maximization of arc control device, improve the arc extinguishing ability of circuit breaker, and then ensure the breaking capacity of circuit breaker, simultaneously the layout structure compact and reasonable more of circuit breaker.
As shown in figure 13, described striking groove 150 is V-shaped, the dual-side of striking groove 150 extends to upper end side and the side side of arc extinguishing grid pieces 151 respectively, striking groove 150 forms the breach of dodging arc leading angle 16a at the side upper corners of arc extinguishing grid pieces 151, after upper arc leading angle 16a is fixing, the indentation, there of arc extinguishing grid pieces 151 can be stretched in one end, and striking groove 150 is tilted to downward-extension and arranges from V-arrangement open at one end to bottom end.Striking groove 150 is designed to V-arrangement, and electric arc effectively can be sucked arc control device 15, striking groove 150 adopts asymmetric design, makes the downside of arc control device 15 can sink to bottom housing 1, the placement that can coordinate fixed contact compared with minor face of upper side.The length of the upper side edge of described striking groove 150 is less than the length of lower side.One end of striking passage is near the zone of action of fixed contact 10 and moving contact 11, and the other end extends the striking groove 150 to arc control device 15.Described striking groove 150 comprises V-arrangement arc angle 150c, one end of V-arrangement arc angle 150c tilts upward extension to the upper end side of arc extinguishing grid pieces 151 and is provided with the first hypotenuse 150a, and the other end of V-arrangement arc angle 150c is tilted to downward-extension to the side side of arc extinguishing grid pieces 151 and is provided with the second hypotenuse 150b.The angle of described first hypotenuse 150a and the second hypotenuse 150b is obtuse angle.The angle of the first hypotenuse 150a and the second hypotenuse 150b is set to obtuse angle, electric arc is introduced striking groove 150 place to greatest extent, after through V-arrangement arc angle 150c can be relatively few obstruction electric arc introduced in arc control device 15 carry out arc extinguishing.
As shown in figure 12, the two ends of described arc extinguishing grid pieces 151 are provided with the pockets 151a holding grid location-plate 152, protrude bottom described pockets 151a and be provided with grid fixed leg 151b, described grid location-plate 152 is provided with the grid fixing hole 152a corresponding to grid fixed leg 151b.Grid location-plate 152 is installed in pockets 151a, grid fixing hole 152a on grid location-plate 152 coordinates with the grid fixed leg 151b on arc extinguishing grid pieces 151 and installs, the upper end of one group of arc extinguishing grid pieces 151 and one piece of grid location-plate 152 are fixed, and lower end and two pieces of grid location-plates 152 are fixed.
As shown in Fig. 9,14, the utility model circuit breaker, also comprise the junction block 17 being arranged on housing 1 both sides, the side of described arc control device arranges multiple outlet passageway and is connected with arc control device 15, and described housing 1 is provided with multiple exhaust outlet in close arc control device 15 side and is connected with the other end of outlet passageway.The utility model circuit breaker is by arranging multiple outlet passageway at the rear side of arc control device, housing is arranged multiple exhaust outlet to be connected with outlet passageway, the hyperbar produced when effectively can reduce circuit breaker disjunction, reduces the resistance to arc motion, enables circuit breaker fast arc extinction.
As shown in Fig. 9,14, described outlet passageway divides multilayer to arrange, and every layer arranges multiple outlet passageway.The side of described arc control device 15 is parallel to housing 1 layering and is provided with two-layer outlet passageway layer, be respectively upper strata outlet passageway and lower floor's outlet passageway, upper strata outlet passageway and lower floor's outlet passageway are divided into two outlet passageways by the dividing plate perpendicular to housing 1 respectively, the air-flow of discharging through arc control device 15 can be discharged by the outlet passageway of different aspects, reach the effect of fast arc extinction.Described exhaust outlet is two, and described two exhaust outlets are respectively first row gas port 102 and second exhaust port 103, and described first row gas port 102 is located at the side near junction block 17 in housing 1, and described second exhaust port 103 is located at housing 1 near side, bottom.Outlet passageway divides two-layer setting, the air-flow of discharging through arc control device 15 can be discharged by bilevel outlet passageway, and housing 1 is respectively arranging an exhaust outlet near junction block 17 side and side, bottom, greatly strengthens the discharge of circuit breaker internal gas, improves arc quenching effect.
As shown in Fig. 9,14, described upper strata outlet passageway comprises housing 1 to the extended upper partition 104 of arc control device 15, upper partition 104 is circular arc dividing plate, upper strata outlet passageway is divided into the first upper strata outlet passageway 105 and the second upper strata outlet passageway 106, one end of first upper strata outlet passageway 105 and the second upper strata outlet passageway 106 extends to the side of arc control device 15, and the other end extends to second exhaust port 103 place.Upper strata outlet passageway arranges upper partition 104, is divided into by upper strata outlet passageway the first upper strata outlet passageway 105 and the second upper strata outlet passageway 106, first upper strata outlet passageway 105 and the second upper strata outlet passageway 106 to share a second exhaust port 103.Described lower floor outlet passageway comprises housing 1 to the extended lower partition 109 of arc control device 15, lower floor's outlet passageway is divided into the first lower floor's outlet passageway 107 and second lower floor's outlet passageway 108, one end of first lower floor's outlet passageway 107 extends to the side of arc control device 15, the other end extends to first row gas port 102 place, one end of second lower floor's outlet passageway 108 extends to the side of arc control device 15, and the other end extends to second exhaust port 103 place.Lower floor's outlet passageway arranges lower partition 109, the other end of first lower floor's outlet passageway 107 and second lower floor's outlet passageway 108, first lower floor's outlet passageway 107 and second lower floor's outlet passageway 108 is divided into by lower floor's outlet passageway 107 to be connected with the second exhaust port 103 bottom the first row gas port 102 of side junction block 17 and housing 1 respectively.
In addition, described first lower floor's outlet passageway 107 also can be set to surge chamber, and surge chamber is provided with air inlet 107a towards the side of arc control device 15, the opposite side of surge chamber and the connection of first row gas port 102.First lower floor's outlet passageway 107 is surge chamber, the portion gas of discharging from arc control device 15 side enters into surge chamber buffering from air inlet 107a, portion gas is discharged through first row gas port 102, and another part gas enters into second lower floor's outlet passageway 108 through surge chamber air inlet 107a and discharges through second exhaust port 103.
As shown in Figure 15,16, the utility model circuit breaker, comprise multipole circuit breaker unit, every pole breaker unit junction block 17 be included in the terminal screw window 171 that junction block 17 is offered, multiple junction blocks 17 of described multipole circuit breaker unit are provided with an annular boss 172 around the terminal screw window 171 of multiple breaker unit.This practical circuit breaker is multipole circuit breaker, and arranging around multiple terminal screw thereabout and preventing from pointing the annular boss of error shock of multipole circuit breaker side, is convenient to processing, good looking appearance.
As shown in Figure 15,16, the middle part of described annular boss 172 is provided with annular groove 173.The middle part of annular boss 172 is provided with annular groove 173, prevents finger from slipping in junction block 17 and Danger Electric shock risk occurs.
As shown in Figure 15,16, described annular boss 172 is racetrack boss, comprises two sections of straightway 172a be arranged in parallel and the arc section 172b being connected to two sections of straightway 172a two ends.Described annular boss 172 is oval or square boss.
Described circuit breaker is the two poles of the earth, the both sides of circuit breaker are respectively equipped with two junction blocks 17, two junction block 17 upper ends of every side are respectively equipped with a terminal screw window 171, and the top ring of both sides junction block 17 is respectively equipped with an annular boss 172 around two terminal screw windows 171.Described housing 1 comprises base, lid and the dividing plate 1a be arranged between base and lid, base, lid and dividing plate 1a are combined into the junction block 17 of circuit breaker both sides jointly, and the arc section 172b at described two ends is located at base respectively and covers, and described both sides straightway 172a is located on dividing plate 1a.Annular boss 172 is slapped together jointly by the part on base and lid and dividing plate 1a respectively, and structure is simple, practical and attractive.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should be considered as belonging to protection range of the present utility model.
Claims (10)
1. a circuit breaker, comprise housing (1) and be placed in the arc control device (15) of housing (1) inside and the junction block (17) of housing (1) both sides, it is characterized in that: the side of described arc control device (15) arranges multiple outlet passageway and is connected with arc control device (15), described housing (1) is provided with multiple exhaust outlet in close arc control device (15) side and is connected with the other end of outlet passageway.
2. circuit breaker according to claim 1, is characterized in that: described outlet passageway point multilayer is arranged, and every layer arranges multiple outlet passageway.
3. circuit breaker according to claim 2, it is characterized in that: described exhaust outlet is two, described two exhaust outlets are respectively first row gas port (102) and second exhaust port (103), described first row gas port (102) is located at the side near junction block (17) in housing (1), and described second exhaust port (103) is located at housing (1) near side, bottom.
4. circuit breaker according to claim 3, it is characterized in that: the side of described arc control device (15) is parallel to housing (1) layering and is provided with two-layer outlet passageway layer, be respectively upper strata outlet passageway and lower floor's outlet passageway, upper strata outlet passageway and lower floor's outlet passageway are divided into two outlet passageways by the dividing plate perpendicular to housing (1) respectively.
5. circuit breaker according to claim 4, it is characterized in that: described upper strata outlet passageway comprises housing (1) to the extended upper partition (104) of arc control device (15), upper partition (104) is circular arc dividing plate, upper strata outlet passageway is divided into the first upper strata outlet passageway (105) and the second upper strata outlet passageway (106), one end of first upper strata outlet passageway (105) and the second upper strata outlet passageway (106) extends to the side of arc control device (15), and the other end extends to second exhaust port (103) place.
6. circuit breaker according to claim 4, it is characterized in that: described lower floor outlet passageway comprises housing (1) to the extended lower partition (109) of arc control device (15), lower floor's outlet passageway is divided into first lower floor's outlet passageway (107) and second lower floor's outlet passageway (108), one end of first lower floor's outlet passageway (107) extends to the side of arc control device (15), the other end extends to first row gas port (102) place, one end of second lower floor's outlet passageway (108) extends to the side of arc control device (15), the other end extends to second exhaust port (103) place.
7. circuit breaker according to claim 6, it is characterized in that: described first lower floor's outlet passageway (107) is surge chamber, surge chamber is provided with air inlet (107a) towards the side of arc control device (15), the opposite side of surge chamber and the connection of first row gas port (102).
8. according to the arbitrary described circuit breaker of claim 1-7, it is characterized in that: also comprise arc leading angle (16a), lower arc leading angle (16b), fixed contact (10), moving contact (11), be fixed on housing (1) upper and exposed at housing (1) handle outward (2) and the operating mechanism that is connected with handle (2), described fixed contact (10) and lower arc leading angle (16b) are fixedly installed in housing (1), one end of described moving contact (11) is connected with operating mechanism, described upper arc leading angle (16a) is for U-shaped, the other end is connected with fixed contact (10), lower arc leading angle (16b) is positioned at the bottom of housing (1), the lower end base of arc control device (15) is stretched in one end of lower arc leading angle (16b), striking passage is formed between described upper arc leading angle (16a) and lower arc leading angle (16b), one end of striking passage is near the zone of action of fixed contact (10) and moving contact (11), the other end extends the striking mouth place to arc control device (15), described outlet passageway is connected with the other end of arc control device (15).
9. circuit breaker according to claim 8, it is characterized in that: described operating mechanism comprises U-shaped bar (3), tripping (4), snap close (5), contact supports (6) and bearing (9), one end of described U-shaped bar (3) is connected with handle (2), the other end is connected with snap close (5), described snap close (5) is connected with tripping (4) hasp, described snap close (5), tripping (4) and contact support (6) pivotable are connected on bearing (9), it is inner that bearing (9) pivotable is connected to housing (1), described snap close (5), tripping (4) pivotable is connected to one end of bearing (9), contact supports that (6) pivotable is connected to the other end of bearing (9).
10. circuit breaker according to claim 9, it is characterized in that: also comprise tripping coil (12), bimetal leaf (8) and hook (7) of threading off, described one end of threading off hook (7) is connected with snap close (5), the other end and bimetal leaf (8) are arranged in opposite directions, described operating mechanism is positioned at the side of housing (1), tripping coil (12) is positioned at housing (1) middle part and is oppositely arranged with operating mechanism, housing (1) bottom is located at by described arc control device (15), is positioned at the below of tripping coil (12); Described tripping coil (12) is provided with striker (121) towards snap close (5) one end, and when short circuit, the striker (121) of tripping coil (12) ejects immediate roof opening lock catch (5); When circuit overloads, the bending touching of bimetal leaf (8) hook (7) of threading off drives tripping (4) and snap close (5) to trip cut-out circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520752025.7U CN205159253U (en) | 2015-09-22 | 2015-09-22 | Circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520752025.7U CN205159253U (en) | 2015-09-22 | 2015-09-22 | Circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205159253U true CN205159253U (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520752025.7U Active CN205159253U (en) | 2015-09-22 | 2015-09-22 | Circuit breaker |
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| Country | Link |
|---|---|
| CN (1) | CN205159253U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105826143A (en) * | 2016-05-31 | 2016-08-03 | 乐清市也为电气有限公司 | Micro breaker |
| CN106449314A (en) * | 2016-09-20 | 2017-02-22 | 加西亚电子电器股份有限公司 | Residual-current circuit breaker |
| CN108231505A (en) * | 2018-01-18 | 2018-06-29 | 浙江正泰电器股份有限公司 | Arc extinguishing outlet passageway and breaker |
| CN108269721A (en) * | 2016-12-30 | 2018-07-10 | 嘉灵科技有限公司 | Base bleed breaker |
| CN109087829A (en) * | 2017-06-14 | 2018-12-25 | 浙江正泰电器股份有限公司 | Miniature circuit breaker |
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2015
- 2015-09-22 CN CN201520752025.7U patent/CN205159253U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105826143A (en) * | 2016-05-31 | 2016-08-03 | 乐清市也为电气有限公司 | Micro breaker |
| CN105826143B (en) * | 2016-05-31 | 2019-02-15 | 乐清市也为电气有限公司 | A kind of miniaturization breaker |
| CN106449314A (en) * | 2016-09-20 | 2017-02-22 | 加西亚电子电器股份有限公司 | Residual-current circuit breaker |
| CN108269721A (en) * | 2016-12-30 | 2018-07-10 | 嘉灵科技有限公司 | Base bleed breaker |
| CN108269721B (en) * | 2016-12-30 | 2019-05-31 | 嘉灵科技有限公司 | Base bleed breaker |
| CN109087829A (en) * | 2017-06-14 | 2018-12-25 | 浙江正泰电器股份有限公司 | Miniature circuit breaker |
| CN108231505A (en) * | 2018-01-18 | 2018-06-29 | 浙江正泰电器股份有限公司 | Arc extinguishing outlet passageway and breaker |
| CN108231505B (en) * | 2018-01-18 | 2023-09-05 | 浙江正泰电器股份有限公司 | Arc extinguishing gas outlet channel and circuit breaker |
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