CN202178224U - Arc extinction system of breaker for device - Google Patents
Arc extinction system of breaker for device Download PDFInfo
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- CN202178224U CN202178224U CN2011202848303U CN201120284830U CN202178224U CN 202178224 U CN202178224 U CN 202178224U CN 2011202848303 U CN2011202848303 U CN 2011202848303U CN 201120284830 U CN201120284830 U CN 201120284830U CN 202178224 U CN202178224 U CN 202178224U
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- 230000000171 quenching effect Effects 0.000 claims description 43
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- 229910000831 Steel Inorganic materials 0.000 claims description 15
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Abstract
The utility model reveals an arc extinction system of a breaker for a device, which comprises a casing, a contract system, an arc extinction cavity and an arc extinction grating group. The casing is formed by combining a first casing body and a second casing body, the contact system is located in the casing and comprises a moving contact and a fixed contact, a moving contact rod is in rivet weld with a moving contact point to form the moving contact, and a fixed contact rod is in point weld with a fixed contact point to form the fixed contact. The fixed contact rod is shaped by turning over, the arc extinction cavity is located in the casing, and the arc extinction grating group is installed in the arc extinction cavity and positioned through groove holes and the surface of the arc extinction grating group. By means of the arc extinction system of the breaker for the device, processes of arc blowing, arc pulling, arc initiation, arc cutting and arc extinction can be quickly achieved, breaking capacity of the breaker for the device is improved, spraying distance and strength of high temperature particles and arc spray can be simultaneously and greatly reduced, safety of the breaker for the device is improved, and service life of the breaker for the device is prolonged. The arc extinction system of the breaker for the device further has the advantages of being simple and convenient to assemble and reliable.
Description
Technical field
The utility model relates to circuit breaker, more particularly, relates to the arc quenching system of a kind of equipment with circuit breaker.
Background technology
Because of himself characteristic, because of iron core has little time the motion or the segment distance that only moves, magnetic circuit has bigger gap to equipment when disjunction with circuit breaker, like this armature the suction-combining force a little less than, cause its breaking speed slower, thereby be difficult for its interrupting performance of raising.In big electric current breaking course, its break-time mainly is divided into three partly to equipment with circuit breaker, and electromagnetic system produces the time of suction pulling armature; Armature drive tripping mechanism dropout required time and dynamic/static contact be the time of back arcing to arc extinction separately; Wherein the action response time of electromagnetic system and mechanical transmission structure is relatively stable, the bigger lifting of difficult realization, and after contact separates; Can be from the process of arcing to blow-out through improving the structural design of arc quenching system; Promote it to extinguish fast, shorten the arcing time, and then improve breaking capacity.
Equipment in response to the particularity with occasion, needs it to have advantages of higher stability and fail safe with circuit breaker, to guarantee the power supply quality of used occasion.But at present a lot of products can cause equipment to damage with the circuit breaker internal mechanism when the big electric current of disjunction, and influence is normally used.Exist the spray arc distance from long on the other hand, the temperature and the intensity of jet-stream wind and particle are higher, to making its fail safe lower, cause the damage of neighbouring device easily, even fire.
Equipment often need have the auxiliary contact annex with circuit breaker.Auxiliary contact generally can be installed in the product bottom, offers the connection disjunction of the power realization sensitive switch of connecting rod at closed and breaking course through contact.But when design had the auxiliary contact annex, when often causing occurring disjunction short circuit current electric arc, air-flow blowback passage was bigger, electric arc resilience or high temperature gas flow blowback part of damage.Therefore this need take all factors into consideration its interrupting performance and reliable in action property thereof at the equipment of design band auxiliary contact annex during with circuit breaker with regard to demand, promptly touches the accuracy of auxiliary contact.
The utility model content
The utility model is intended to propose the arc quenching system that a kind of equipment is used, and can realize very fast arc blow-out, arcing, and the process of arc until arc extinguishing cut in striking.
According to an embodiment of the utility model, the arc quenching system of a kind of equipment with circuit breaker proposed, comprising: shell, contact system, arcing chamber and arc extinguishing grid pieces group.
Shell is formed by first housing and second shell combination.Contact system is positioned at shell, and contact system comprises moving contact and fixed contact, and moving contact is made up of movable feeler lever rivet welding moving contact, and fixed contact is made up of stationary contact head rod and fixed contact spot welding, and wherein, the stationary contact head rod is shaped through turnover.Arcing chamber is positioned at shell.The arc extinguishing grid pieces group is installed in the arc control device, and the arc extinguishing grid pieces group is by the surface alignment of shell and arc extinguishing grid pieces group.
In one embodiment, the stationary contact head rod comprises terminal board, wiring hole, first transverse slat, second transverse slat and bent angle, and the stationary contact head rod is " U " shape inflection structure.Fixed contact is welded to the middle of the transverse slat upper surface of stationary contact head rod.
In one embodiment, the arc extinguishing grid pieces group comprises hard steel cardboard, thick grid sheet and thin grid sheet.The hard steel cardboard places both sides, and the hard steel cardboard has breach at interval.Thick grid sheet and the combination of thin grid sheet are used, and have breach on thick grid sheet and the thin grid sheet.Breach on the hard steel cardboard is installed in the breach on thick grid sheet and the thin grid sheet.Thick grid sheet and thin grid sheet have pin, and after thick grid sheet and thin grid sheet were installed, pin was corresponding with the position of moving contact and fixed contact.
In one embodiment, arcing chamber has slotted eye and notch, and the bottom of arcing chamber is provided with first groove and second groove.First groove and second groove location stationary contact head rod, slotted eye location arc extinguishing grid pieces group, notch is installed run-on tab, and moving contact is opened, and movable feeler lever points to run-on tab.The end of arcing chamber has main vent, has to be contracted to the exhaust duct that turns to expanded form and to be arranged on by the main vent, and the side of arcing chamber has walkthrough pore and alternating expression arc blow-out mouth.Main vent is provided with mounting groove, and metal grating, the aperture that the Boulez exhaust is used on the metal grating are installed in the mounting groove.
In one embodiment, the stationary contact head rod also comprises run-on tab, and the angle of bevel of run-on tab is corresponding with the position of walkthrough pore.
According to an embodiment of the utility model, the arc quenching system of a kind of equipment with circuit breaker also proposed, comprising: shell, contact system, arcing chamber and magnet structure.
Shell is formed by first housing and second shell combination.Contact system is positioned at shell, and contact system comprises moving contact and fixed contact, and moving contact is made up of movable feeler lever rivet welding moving contact, and fixed contact is made up of stationary contact head rod and fixed contact spot welding, and wherein, the stationary contact head rod is shaped through turnover.Arcing chamber is positioned at shell.Magnet structure is installed in the arc control device, and magnet structure comprises plastics pedestal and a pair of permanent magnet.
The equipment of the utility model can be realized very fast arc blow-out with the arc quenching system of circuit breaker; Arcing; Striking cut the process of arc until arc extinguishing, thereby raising equipment is with the breaking capacity of circuit breaker; Can significantly shorten simultaneously the jet length and the intensity of spray arc and high temperature particle, raising equipment is with the fail safe and the useful life of circuit breaker.It is easy that the equipment of the utility model also has an assembling with the structural member of the arc quenching system of circuit breaker, reliable characteristics.
Description of drawings
The utility model above-mentioned and other characteristic, character and advantage will become more obvious through the description below in conjunction with accompanying drawing and embodiment, in the accompanying drawings, identical Reference numeral is represented identical characteristic all the time, wherein:
Fig. 1 has disclosed according to the equipment of an embodiment of the utility model structure chart with the arc quenching system of circuit breaker.
Fig. 2 has disclosed according to the equipment of an embodiment of the utility model side view with the arc quenching system of circuit breaker, has showed arc extinguishing screen and alternating expression vent ports.
Fig. 3 has disclosed according to the equipment of an embodiment of the utility model structure with arcing chamber in the arc quenching system of circuit breaker.
Fig. 4 has disclosed according to the equipment of an embodiment of the utility model structure with stationary contact head rod in the arc quenching system of circuit breaker.
Fig. 5 has disclosed according to the equipment of an embodiment of the utility model structure with arc extinguishing grid pieces group in the arc quenching system of circuit breaker.
Fig. 6 has disclosed according to the equipment of an embodiment of the utility model process sketch map with the starting the arc to striking in the arc quenching system of circuit breaker.
Fig. 7 has disclosed the structure of the permanent magnet of using in the arc quenching system of equipment with circuit breaker according to another embodiment of the utility model.
Embodiment
The utility model is intended to propose the arc quenching system of a kind of equipment with circuit breaker.Main design principle is following: through the optimization with arc extinguishing system of circuit breaker improves to equipment; Comprise electromagnetic repulsion force; Electromagnetism blows the improvement of power and air-flow arc blow-out aspect, makes equipment guided and be driven to arc control device rapidly with the breaking arc of circuit breaker and through the arc extinguishing grid pieces cutting it is extinguished, thereby shorten the arcing time; Improve breaking speed, and then improve its interrupting performance.
This equipment is following with the implementation of the arc quenching system of circuit breaker: the stationary contact head rod that is shaped through turnover of unique design through utilizing electromagnetic property, when big electric current through the time electrodynamic repulsion force that produces improve the opening speed of movable feeler lever.At the other run-on tab that is provided with of fixed contact, when electric arc once pulling out, by the semitight property of arc control device design, the magnetisation field of encouraging of air-flow and grid sheet is ordered about electric arc simultaneously and is shifted to run-on tab rapidly to protect contact.When movable feeler lever was opened fully, electric arc can be jumped to being located on the run-on tab that moving contact do not hold by moving contact, and electric arc is drawn in arc-chute and is cut under air-flow and the action of a magnetic field; Effect because of run-on tab; Electric arc is cut apart one section more, and arc quenching effect is more obvious, helps rapid blow-out.Be located on the shell three types of exhaust outlets promptly, walkthrough gas port, alternating expression arc blow-out mouth and main vent, each stage that can be implemented in arc burning guarantees that all the motion of electric arc trend arc-chute until being cut, extinguishes.Be installed on the metal grating that the shell exhaust outlet do not hold simultaneously and can absorb the high-temperature metal particle that is blown that intercepts the overwhelming majority, thereby raising equipment is with the breaking capacity and the security performance of circuit breaker.
According to the embodiment of the utility model, for example Fig. 1-embodiment shown in Figure 7 proposes the arc quenching system of a kind of equipment with circuit breaker, comprising: shell, contact system, arcing chamber 135 and arc extinguishing grid pieces group 116.Shell is combined to form by first housing 101 and second housing 102.Contact system is positioned at shell, and contact system comprises moving contact and fixed contact, and moving contact is made up of movable feeler lever 125 rivet welding moving contacts 126, and fixed contact is made up of stationary contact head rod 107 and fixed contact 114 spot welding, and wherein, stationary contact head rod 107 is shaped through turnover.Arcing chamber 135 is positioned at shell.Arc extinguishing grid pieces group 116 is installed in the arc control device 135, and arc extinguishing grid pieces group 116 is by the surface alignment of shell and arc extinguishing grid pieces group 116.
Stationary contact head rod 107 comprises terminal board 108, wiring hole 109, first transverse slat 110, second transverse slat 111 and bent angle 112, and stationary contact head rod 107 is " U " shape inflection structure.Fixed contact 114 is welded to the middle of transverse slat 111 upper surfaces of stationary contact head rod 107.
Arc extinguishing grid pieces group 116 comprises hard steel cardboard 117, thick grid sheet 120 and thin grid sheet 121.Hard steel cardboard 117 places both sides, and hard steel cardboard 117 has breach 118 at interval.Thick grid sheet 120 uses with thin grid sheet 121 combinations; A kind of form that combination is used is that thick grid sheet 120 is used and the thin grid sheet 121 of top use in the below; Perhaps also can be that thick grid sheet 120 is crisscross arranged with thin grid sheet 121, have breach 119 on thick grid sheet 120 and the thin grid sheet 121.Breach 118 on the hard steel cardboard 117 is installed in the breach 119 on thick grid sheet 120 and the thin grid sheet 121.
Stationary contact head rod 107 also comprises run-on tab 113, and the angle of bevel of run-on tab 113 is corresponding with the position of walkthrough pore 115.
According to the utility model, a kind of arc quenching system that is directed against the equipment of high-performance direct current product application with circuit breaker is also proposed, with magnet structure 139 replacement arc extinguishing grid pieces groups 116.This equipment comprises shell, contact system, arcing chamber 135 and magnet structure 139 with the arc quenching system of circuit breaker.
Shell is combined to form by first housing 101 and second housing 102.Contact system is positioned at shell, and contact system comprises moving contact and fixed contact, and moving contact is made up of movable feeler lever 125 rivet welding moving contacts 126, and fixed contact is made up of stationary contact head rod 107 and fixed contact 114 spot welding, and wherein, stationary contact head rod 107 is shaped through turnover.Arcing chamber 135 is positioned at shell.Magnet structure 139 is installed in the arc control device 135, and magnet structure 139 comprises plastics pedestal 140 and a pair of permanent magnet 141.
According to the arc quenching system of the utility model device designed with circuit breaker, the arc extinguishing grid pieces group that adopts integral type to install, grid sheet number is 6, is fixed together through the hard steel cardboard, reinstalls housing, installation is comparatively convenient and the grid sheet is stable is difficult for rocking.Thicker at starting the arc end two sheet grating sheets, ablation that can the anti-relative long period of electric arc, because of spatial constraints, all the other grid sheets adopt relatively thin board making.The arc extinguishing structure of this kind integral type grid sheet group; It can be used in interchange, direct current product, when the direct current product has the superior performance requirement, can integral type grid sheet group light in structure be changed places and replace with magnet structure; Make the raising of the shared property of product parts, save production cost.
In addition; This equipment becomes the structure with a turnover with the contact portion shaped design of the stationary contact head rod of the arc quenching system of circuit breaker; Electromagnetic repulsion force in the time of can utilizing disjunction improves the breaking speed of movable feeler lever, and the contact limit is provided with run-on tab simultaneously, makes things convenient for electric arc to move forward with the protection fixed contact.The moving contact end is provided with the run-on tab that separates with moving contact, in arc process, can electric arc be cut apart one section more, helps extinguishing of electric arc.
This equipment also adopts the arc blow-out mouth of interlaced arrangement with the arc quenching system of circuit breaker, is blown and the short circuit phenomenon by the grid head to prevent electric arc, and raising equipment is with circuit breaker reliable breaking property.Be provided with metal grating at the main vent end in addition, absorb the high-temperature metal particle, reduce the high-temperature injection thing the influence of equipment with the miscellaneous equipment part of proximity to circuit breakers.
Introduce in detail according to the equipment of the embodiment of the utility model structure below in conjunction with Fig. 1-Fig. 6 with the arc quenching system of circuit breaker.
This arc quenching system equipment of being mainly used in is used circuit breaker; With reference to figure 1; This arc quenching system is arranged in the lower right of equipment with circuit breaker; The shell that is combined into by first housing 101 and second housing 102 is coated and fixed, and transmission mechanism 105 and electromagnetic system 106 are illustrated with dotted line because of not relating to the utility model related content.
This equipment mainly is made up of shell, contact system, integral type arc extinguishing grid pieces group 116 and 135 of arcing chambers being located on the housing with the arc quenching system structure of circuit breaker.Wherein contact system comprises moving contact and fixed contact two parts, and moving contact is made up of movable feeler lever 125 rivet weldings one moving contact 126, and fixed contact is made up of stationary contact head rod 107 and fixed contact 114 spot welding.Stationary contact head rod 107 has the binding post effect simultaneously concurrently, and equipment is during with the closing of power circuit breaker electric current, and electric current again through movable feeler lever 125 to moving contact 126 and fixed contact 114, is drawn by stationary contact head rod 107 through electromagnetic system 106 mainly through binding post 104 at last.Concrete, stationary contact head rod 107 is made up of terminal board 108, wiring hole 109, first transverse slat 110, second transverse slat 111, bent angle 112.Hole 109 wherein is by the sheet material piercing and flanging, and system is with screw thread, and first transverse slat 110, second transverse slat 111, bent angle 112 constitute horizontal " U " shape inflection structures.Stationary contact head rod 107 also comprises run-on tab 113, and the position of the walkthrough pore 115 on its angle of bevel and the housing is corresponding, fixed contact 114 is welded to the middle of upper surface of the transverse slat 111 of stationary contact head rod 107, constitutes fixed contact.
Integral type arc extinguishing grid pieces group 116 is installed in the interior arc control device 135 of shell that position and first housing 101, second housing 102 constitute.The position of arc extinguishing grid pieces group 116 is by the surface alignment of groove 136 and arc extinguishing grid pieces group 116.Concrete, arc extinguishing grid pieces group 116 is by placing both sides, and in order to fixing hard steel cardboard 117, thick grid sheet 120 and thin grid sheet 121 constitute.Its medium hard steel cardboard 117 compartment of terrain systems are with breach 118; It can be installed in the breach 119 on thick grid sheet 120 and the thin grid sheet 121; Thick grid sheet 120 and thin grid sheet 121 have bipod 122, and bipod 122 is corresponding with the dynamic/static contact that is in contact condition 126,114 positions after installation.
Place the bottom of the arcing chamber 135 in the shell to be provided with first groove 137 and second groove 138.First groove 137 and second groove 138 are in order to location stationary contact head rod 107, and slotted eye 136 is in order to location integral type arc extinguishing grid pieces group 116.Notch 128 is in order to run-on tab 127 to be installed, and after moving contact was opened, movable feeler lever 125 pointed to run-on tab 127.In this arcing chamber 135, also comprise the exhaust duct 129 that turns to expanded form by being contracted to.Be positioned at main vent 133 sides by being contracted to the exhaust duct 129 that turns to expanded form, main vent 133 is positioned at the end of arcing chamber 135.Also be provided with mounting groove 134 at main vent 133; Mounting groove 134 is in order to install metal grating 131; Cloth is shown aperture 132 in order to exhaust on the metal grating 131, and metal section and part is then in order to absorb metallic and refrigerating gas, the side of arc control device 135; Shown in the figure for the rightmost side is distributed with walkthrough pore 115 and alternating expression arc blow-out mouth 124, for example with reference to figure 2, shown in Figure 3.
At equipment during with the breaker closing state; If the big electric current of the unusual generation of circuit, then equipment produces electromagnetic attractions with electromagnetic system 106 responses of circuit breaker, makes mechanism's release through transmission mechanism 105 to release mechanism; When big electric current produces; Because second transverse slat 111 is parallel with movable feeler lever 125 on the stationary contact head rod 107 bending structures, can be judged by the electromagnetic repulsion force principle this moment, when electric current flows through the movable feeler lever 125 and second transverse slat 111; Produce repulsion between the two, this repulsion helps to improve the movement velocity of movable feeler lever opening procedure.As shown in Figure 6,, moving contact 126 produces electric arc when separating with fixed contact 114.After electric arc produced, near the air pressure in the arc control device 135 electric arcs raise fast, this moment arc control device in the left side by dividing plate 130; Structures such as movable feeler lever 126 make left side sealing relatively; Concerning electric arc, produce back pressure, make air-flow to the right walkthrough gas port 115 blow out, so just order about electric arc and move to the right.Arc current self is encouraged and is sent out magnetic field through arc extinguishing grid pieces group 116 simultaneously, by the right-hand rule, between the bipod 122 of thick grid sheet 120 and thin grid sheet 121, forms perpendicular to electric arc magnetic field, and this moment, electric arc also received Lorentz force to the right.Under the effect of above-mentioned two kinds of power; Electric arc is expelled fixed contact 114 rapidly and is moved to run-on tab 113; Under further driving, it gets into arc extinguishing grid pieces group 116, at first by two thick grid sheet 120 cuttings bottom; High-temperature gas is mainly discharged by walkthrough gas port 115 to exhaust duct 129 diffusions in the arc control device.Be pulled to when longer at electric arc; Cut into multistage by more thin grid sheets 121, this moment, the arc drop effect of electric arc was obvious, arc current relatively a little less than; Electric arc in the arcing chamber 135 produces gas and releases through alternating expression arc blow-out aperture 124 between each grid sheet; Take away a large amount of heats and the metallic of electric arc, the design in alternating expression arc blow-out aperture here can prevent effectively that the phenomenon of short circuit between adjacent arc from being appearred in electric arc under the situation about releasing by force, improve electric arc disjunction fail safe.When movable feeler lever 125 opened to a certain degree, because of the two stages heating through the front of gas in the arcing chamber 135, the bulk temperature level was higher; Be not enough to release fast by walkthrough pore 115 and staggered arc blow-out mouth 124, this moment, main air-flow was gushed to main vent 133 by exhaust duct 129, affected the electric arc on the moving contact 126 to jump to run-on tab 127 simultaneously; It is longer that the path of electric arc is pulled to, and cut into multistage, arc extinction fully; Arc extinguishing indoor gas and charged particle by main vent 133 ejections, descend the arc extinguishing indoor temperature rapidly, and number of charged particles reduces sharply; Improve medium recovery strength, avoid the phenomenon of restriking.Shrink at high-temperature gas and charged particle warp in exhaust duct 129; Expansion and turning are turned when the structure of exhaust outlet and housing wall takes place heat exchange and friction collision can reduce current rate to a certain extent, and the salband charged; At last before air-flow is blown; Need the aperture 132 through metal grating 131, the metallic overwhelming majority can be absorbed by metal grating 131, and high temperature gas flow is then discharged through aperture 132; Can effectively reduce the high temperature ejecta and spray intensity, raising equipment is with the fail safe of circuit breaker.
Fig. 7 has disclosed according to the equipment of another embodiment of the utility model structure with the arc quenching system of circuit breaker.When the direct current product requirement has superior performance, can integral type arc extinguishing grid pieces group 116 be replaced to magnet structure 139.Fig. 7 has disclosed this magnet structure 139.In this embodiment, this arc quenching system is coated and fixed by the shell that first housing 101 and second housing 102 are combined into equally, and the arc quenching system structure mainly is made up of shell, contact system, magnet structure 139 and 135 of arcing chambers being located on the housing.Magnet structure 139 comprises plastics pedestal 140 and a pair of permanent magnet 141.A pair of permanent magnet 141 is arranged through correct in this, and it produces magnetic field in the blow-out process, and direct-current arc is produced a lateral thrust, impels electric arc to get into arc control device and is extinguished, and helps to improve blow-out speed.
The equipment of the utility model can be realized very fast arc blow-out with the arc quenching system of circuit breaker; Arcing; Striking cut the process of arc until arc extinguishing, thereby raising equipment is with the breaking capacity of circuit breaker; Can significantly shorten simultaneously the jet length and the intensity of spray arc and high temperature particle, raising equipment is with the fail safe and the useful life of circuit breaker.It is easy that the equipment of the utility model also has an assembling with the structural member of the arc quenching system of circuit breaker, reliable characteristics.
The foregoing description provides to being familiar with personnel in this area and realizes or use the utility model; Being familiar with those skilled in the art can be under the situation of the utility model thought that does not break away from the utility model; The foregoing description is made various modifications or variation; Thereby the protection range of the utility model do not limit by the foregoing description, and should be the maximum magnitude that meets the inventive features that claims mention.
Claims (10)
1. an equipment is characterized in that with the arc quenching system of circuit breaker, comprising:
Shell, shell is combined to form by first housing (101) and second housing (102);
Contact system is positioned at said shell, and contact system comprises moving contact and fixed contact; Moving contact is made up of movable feeler lever (125) rivet welding moving contact (126); Fixed contact is made up of stationary contact head rod (107) and fixed contact (114) spot welding, and wherein, stationary contact head rod (107) is shaped through turnover;
Arcing chamber (135) is positioned at said shell;
Arc extinguishing grid pieces group (116) is installed in the said arc control device (135), and arc extinguishing grid pieces group (116) is by the surface alignment of shell and arc extinguishing grid pieces group (116).
2. equipment as claimed in claim 1 is characterized in that with the arc quenching system of circuit breaker,
Said stationary contact head rod (107) comprises terminal board (108), wiring hole (109), first transverse slat (110), second transverse slat (111) and bent angle (112), and stationary contact head rod (107) is " U " shape inflection structure.
3. equipment as claimed in claim 2 is characterized in that with the arc quenching system of circuit breaker fixed contact (114) is welded to the middle of transverse slat (111) upper surface of stationary contact head rod (107).
4. equipment as claimed in claim 1 is characterized in that with the arc quenching system of circuit breaker said arc extinguishing grid pieces group (116) comprising:
Hard steel cardboard (117), hard steel cardboard (117) places both sides, and hard steel cardboard (117) has breach (118) at interval;
Thick grid sheet (120) and thin grid sheet (121), thick grid sheet (120) and thin grid sheet (121) combination are used, and have breach (119) on thick grid sheet (120) and the thin grid sheet (121);
Breach (118) on the hard steel cardboard (117) is installed in the breach (119) on thick grid sheet (120) and the thin grid sheet (121).
5. equipment as claimed in claim 4 is with the arc quenching system of circuit breaker; It is characterized in that; Said thick grid sheet (120) and thin grid sheet (121) have pin (122), and after thick grid sheet (120) and thin grid sheet (121) were installed, pin (122) was corresponding with the position of moving contact (126) and fixed contact (114).
6. equipment as claimed in claim 1 is characterized in that with the arc quenching system of circuit breaker said arcing chamber (135) has slotted eye (136) and notch (128), and the bottom of arcing chamber (135) is provided with first groove (137) and second groove (138);
First groove (137) and second groove (138) location stationary contact head rod (107);
Slotted eye (136) location arc extinguishing grid pieces group (116);
Notch (128) is installed run-on tab (127), and moving contact is opened, and movable feeler lever (125) points to run-on tab (127).
7. equipment as claimed in claim 6 is with the arc quenching system of circuit breaker; It is characterized in that; The end of said arcing chamber (135) has main vent (133); Have and be contracted to the exhaust duct (129) that turns to expanded form to be arranged on main vent (133) other, the side of arcing chamber (135) has walkthrough pore (115) and alternating expression arc blow-out mouth (124).
8. equipment as claimed in claim 7 is characterized in that with the arc quenching system of circuit breaker said main vent (133) is provided with mounting groove (134), and metal grating (131) is installed in the mounting groove (134), and metal grating (131) is gone up the aperture (132) that the Boulez exhaust is used.
9. equipment as claimed in claim 8 is characterized in that with the arc quenching system of circuit breaker,
Said stationary contact head rod (107) also comprises run-on tab (113), and the angle of bevel of run-on tab (113) is corresponding with the position of said walkthrough pore (115).
10. an equipment is characterized in that with the arc quenching system of circuit breaker, comprising:
Shell, shell is combined to form by first housing (101) and second housing (102);
Contact system is positioned at said shell, and contact system comprises moving contact and fixed contact; Moving contact is made up of movable feeler lever (125) rivet welding moving contact (126); Fixed contact is made up of stationary contact head rod (107) and fixed contact (114) spot welding, and wherein, stationary contact head rod (107) is shaped through turnover;
Arcing chamber (135) is positioned at said shell;
Magnet structure (139) is installed in the said arc control device (135), and magnet structure (139) comprises plastics pedestal (140) and a pair of permanent magnet (141).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202848303U CN202178224U (en) | 2011-08-05 | 2011-08-05 | Arc extinction system of breaker for device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202848303U CN202178224U (en) | 2011-08-05 | 2011-08-05 | Arc extinction system of breaker for device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202178224U true CN202178224U (en) | 2012-03-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202848303U Expired - Lifetime CN202178224U (en) | 2011-08-05 | 2011-08-05 | Arc extinction system of breaker for device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202178224U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110071008A (en) * | 2019-05-21 | 2019-07-30 | 贵州电网有限责任公司 | A kind of AC circuit breaker |
| CN110098095A (en) * | 2019-06-13 | 2019-08-06 | 江苏凯隆电器有限公司 | Air-sweeping type low-voltage arc eliminating device and breaker |
| CN113745073A (en) * | 2021-09-03 | 2021-12-03 | 巨邦集团有限公司 | Molded case circuit breaker with zero flashover device |
| CN114156132A (en) * | 2020-09-07 | 2022-03-08 | 上海良信电器股份有限公司 | Arc extinguishing device and circuit breaker |
-
2011
- 2011-08-05 CN CN2011202848303U patent/CN202178224U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110071008A (en) * | 2019-05-21 | 2019-07-30 | 贵州电网有限责任公司 | A kind of AC circuit breaker |
| CN110098095A (en) * | 2019-06-13 | 2019-08-06 | 江苏凯隆电器有限公司 | Air-sweeping type low-voltage arc eliminating device and breaker |
| CN110098095B (en) * | 2019-06-13 | 2024-04-19 | 江苏凯隆电器有限公司 | Air-blowing type low-voltage arc extinguishing device and circuit breaker |
| CN114156132A (en) * | 2020-09-07 | 2022-03-08 | 上海良信电器股份有限公司 | Arc extinguishing device and circuit breaker |
| CN113745073A (en) * | 2021-09-03 | 2021-12-03 | 巨邦集团有限公司 | Molded case circuit breaker with zero flashover device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120328 |
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| CX01 | Expiry of patent term |