CN204257457U - Breaker arc extinguishing mechanism - Google Patents
Breaker arc extinguishing mechanism Download PDFInfo
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- CN204257457U CN204257457U CN201420675673.2U CN201420675673U CN204257457U CN 204257457 U CN204257457 U CN 204257457U CN 201420675673 U CN201420675673 U CN 201420675673U CN 204257457 U CN204257457 U CN 204257457U
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Abstract
Breaker arc extinguishing mechanism, comprise arc control device, described arc control device comprise at least two panels arc extinguishing grid pieces installed side by side in mounting cup and mounting cup, the side of described mounting cup be hatch frame enter arc side, described enter that arc side is corresponding with the moving contact of circuit breaker to be arranged, the opposite side of mounting cup is the exhaust side of closing structure.The two ends of described exhaust side offer at least one upper end steam vent for discharging arcing gas and at least one lower end steam vent respectively, and the aperture area of described upper end steam vent is greater than the aperture area of lower end steam vent.The utility model provides that a kind of arc extinguishing efficiency is high, the simple breaker arc extinguishing mechanism of long service life, assembly structure.
Description
Technical field
The utility model relates to Low Voltage Electrical Apparatus, particularly a kind of breaker arc extinguishing mechanism.
Background technology
Can electric arc be produced between moving contact and fixed contact during circuit breaker point deenergizing, be introduced into arc control device under the arc leading angle that this electric arc can be arranged in circuit breaker and the isostructural effect of arc separating wall, thus complete arc extinguishing process.But due to the contact part of moving contact when moving contact is separated with fixed contact and the latter half of arc control device corresponding, therefore produced electric arc mainly completes arc extinguishing through the latter half of arc control device, electric arc closely, is not fully contacted with the metal grid of arc control device the first half, thus cause metal grid to reduce the cooling of electric arc and segmentation effect, arc control device also and be underutilized, reduce the arc extinguishing ability of breaker arc extinguishing mechanism.During increase and disjunction Short-Circuit High Current simultaneously along with the Contact Breaking/Making Operations number of times of circuit breaker, the scaling loss situation of the latter half of arc control device is more serious than the first half, reduces the useful life of arc control device thus reduces the stability of breaker arc extinguishing mechanism.
Summary of the invention
The purpose of this utility model is the defect overcoming prior art, provides that a kind of arc extinguishing efficiency is high, the simple breaker arc extinguishing mechanism of long service life, assembly structure.
For achieving the above object, the utility model have employed following technical scheme:
A kind of breaker arc extinguishing mechanism, comprise arc control device 10, described arc control device 10 comprise at least two panels arc extinguishing grid pieces 1010 installed side by side in mounting cup 1200 and mounting cup 1200, the side of described mounting cup 1200 be hatch frame enter arc side 1100, described enter that arc side 1100 is corresponding with the moving contact 8 of circuit breaker to be arranged, the opposite side of mounting cup 1200 is the exhaust side 1210 of closing structure.The two ends of described exhaust side 1210 offer at least one upper end steam vent 1211 and at least one lower end steam vent 1212 for discharging arcing gas respectively, and the aperture area of described upper end steam vent 1211 is greater than the aperture area of lower end steam vent 1212.
Further, the sidewall of the base 2 of described circuit breaker offers sidewall exhaust outlet 250, and described sidewall exhaust outlet 250 is corresponding with the upper end steam vent 1211 that the exhaust side 1210 of arc control device 10 is offered arranges.
Further, described mounting cup 1200 is U-shaped structure, the opening side of the mounting cup 1200 of U-shaped structure is for entering arc side 1100, described exhaust side 1210 with enter arc side 1100 and be oppositely arranged, described arc extinguishing grid pieces 1010 to be arranged on side by side in mounting cup 1200 and jointly to be gripped by the fixation side 1220 that exhaust side 1210 two ends are extended respectively, and one end that every sheet arc extinguishing grid pieces 1010 correspondence enters arc side 1100 all offers breach, what the breach of every sheet arc extinguishing grid pieces 1010 constituted that corresponding moving contact 8 arranges enters arc cavity 1011, described moving contact 8 is corresponding with the fixed contact 9 that base 2 sidewall is arranged to be arranged and moving contact 8 can be placed in in arc cavity 1011.
Further, the top and bottom of described exhaust side 1210 offer can the upper end steam vent 1211 that arrange corresponding to the arc extinguishing gap 1012 that the arc extinguishing grid pieces 1010 installed side by side in arc control device 10 is formed and lower end steam vent 1212 respectively, described upper end steam vent 1211 is consistent with the orientation of lower end steam vent 1212 and the orientation of arc extinguishing grid pieces 1010, and upper end steam vent 1211 can correspondingly with at least two arc extinguishing gaps 1012 be arranged, lower end steam vent 1212 can correspondingly with arc extinguishing gap 1012 be arranged.
Further, nine arc extinguishing grid pieces 1010 are installed in described arc control device 10 side by side, the upper end of described exhaust side 1210 is provided with a upper end steam vent 1211, described upper end steam vent 1211 extends to exhaust side 1210 middle part from the edge of exhaust side 1210 upper end can correspondingly with three arc extinguishing gaps 1012 that wherein four arc extinguishing grid pieces 1010 of arc control device 10 upper end are formed be arranged, the lower end of exhaust side 1210 is provided with vertically arrangement and shift to install four lower end steam vents 1212, four arc extinguishing gaps 1012 that each lower end steam vent 1212 can be formed with other five arc extinguishing grid pieces 1010 of arc control device 10 lower end are respectively corresponding one by one to be arranged.
Further, the side of described base 2 is provided with junction block mounting groove 240, and one end of described sidewall exhaust outlet 250 is corresponding with upper end steam vent 1211 to be arranged, and the other end is connected with junction block mounting groove 240.
Further, described arc control device 10 are arranged on bottom the base 2 of circuit breaker, the both sides of arc control device 10 are respectively the exhaust side 1210 entering arc side 1100 and the setting of corresponding base 2 sidewall of corresponding moving contact 8 setting, the upper end of described exhaust side 1210 is provided with for shunting the upper end steam vent 1211 of arc stream to movement above arc control device 10, the sidewall of described base 2 one end is provided with can with the fixed contact 9 of moving contact 8 electrical contact, the other end offers the sidewall exhaust outlet 250 that arrange corresponding to upper end steam vent 1211.
Further, the base 2 of described circuit breaker be provided with at least three parallel arranged and with arc control device 10 enter the corresponding arc partition wall 231 arranged in arc side 1100, can form the arc stream groove 230 for pilot arc between two adjacent arc partition walls 231, and the end of moving contact 8 is provided with and is suspended from arc stream groove 230 and can forms with fixed contact 9 contact part 801 be electrically connected.
Further, one end of described arc partition wall 231 extends to into front, arc side 1100, and the other end extends to fixed contact 9 front that base 2 sidewall is installed, and the shape of arc partition wall 231 is consistent with the swinging track of contact part 801.
Further, the side of the base 2 of circuit breaker is provided with bimetal leaf 4, is provided with correspondingly with the end of bimetal leaf 4 arrange and can be used for indicating the graduation indication portion 3 of circuit breaker bimetal sheet 4 reference position in base 2.
Breaker arc extinguishing mechanism of the present utility model, the multiple upper end open areas offered by arc control device exhaust side are greater than the steam vent of lower ending opening area, realize electric arc divided arc control device being entered arc side, electric arc fully can be cooled extinguishing in arc control device, improve service efficiency and the useful life of breaker arc extinguishing mechanism arc control device.In addition, the orientation of upper end steam vent and lower end steam vent is consistent with arc extinguishing grid pieces orientation, the gas produced in arc control device can be made effectively to be discharged, improve the arc extinguishing ability of circuit breaker.
Accompanying drawing explanation
Fig. 1 is side structure schematic diagram of the present utility model;
Fig. 2 is arc quenching chamber structure schematic diagram of the present utility model;
Fig. 3 is the structural representation that the utility model specifically installs embodiment;
Fig. 4 is another concrete structural representation installing embodiment of the utility model.
Embodiment
Provide embodiment of the present utility model below in conjunction with accompanying drawing 1 to 4, further illustrate breaker arc extinguishing mechanism of the present utility model embodiment.Breaker arc extinguishing mechanism of the present utility model is not limited to the description of following examples.
As shown in Figure 1, the operating mechanism of circuit breaker is installed in the base 2 of the utility model breaker arc extinguishing mechanism, described operating mechanism comprises handle 6, latching device 5, tripping mechanism 7 and arc control device 10, the sidewall that described handle 6 is arranged on base 2 top drives with the tripping mechanism 7 being arranged on the inner one end of base 2 and is connected, described latching device 5 is arranged on the inner other end of base 2, and latching device 5 side is provided with bimetal leaf 4 opposite side that can be connected with its driving and can interlocks with tripping mechanism 7 and be connected.During breaker closing, handle 6 drives to interlock to be formed between tripping mechanism 7 and latching device 5 and interlocks hasp face, and the moving contact 8 that tripping mechanism 7 end is installed simultaneously contacts with the interior fixed contact 9 installed of base 2 and forms electrical connection and make breaker closing conducting.During circuit breaker overload protection, bimetal leaf 4 heated bending promotes latching device 5 makes the interlocking hasp face between itself and tripping mechanism 7 misplace, thus driving moving contact 8 is threaded off with fixed contact 9 and is separated.Described arc control device 10 are arranged on the bottom of base 2 and the side of arc control device 10 is corresponding with moving contact 8 arranges.
Breaker arc extinguishing mechanism of the present utility model comprises arc control device 10, and described arc control device 10 are arranged on the bottom of base 2.The operating mechanism of circuit breaker is arranged on the top of arc control device 10, and the moving contact 8 of operating mechanism is corresponding with the side of arc control device 10 arranges, and described moving contact 8 drives by operating mechanism and moving contact 8 formed with the fixed contact 9 that base 2 sidewall is installed be electrically connected.Particularly, arc control device 10 comprise at least two panels arc extinguishing grid pieces 1010 installed side by side in mounting cup 1200 and mounting cup 1200, the side of described mounting cup 1200 be hatch frame enter arc side 1100, described enter that arc side 1100 is corresponding with the moving contact 8 of circuit breaker to be arranged, the opposite side of mounting cup 1200 is the exhaust side 1210 of closing structure.The electric arc produced when moving contact 8 is separated with fixed contact 9 can enter in arc control device 10 from entering arc side 1100.Arc extinguishing grid pieces has the effect attracting and cool to electric arc, electric arc can be divided into the short arc of many series connection by arc extinguishing grid pieces.Each short arc has its cathode drop and anode drop, and total arc voltage just increases greatly.Simultaneously when electric arc presses close to cold arc extinguishing grid pieces, cold arc extinguishing grid pieces plays the effect of cooling to electric arc, and the temperature of electric arc is reduced, and what enhance electric arc removes liberation, and electric field strength is increased, and is conducive to electric arc extinguish fast.
The structural representation of arc control device 10 of the present utility model as shown in Figure 2, the both sides of described arc control device 10 are respectively the exhaust side 1210 entering arc side 1100 and the setting of corresponding base 2 sidewall of corresponding moving contact 8 setting.The two ends of described exhaust side 1210 offer at least one upper end steam vent 1211 and at least one lower end steam vent 1212 for discharging arcing gas respectively, the aperture area of described upper end steam vent 1211 is greater than the aperture area of lower end steam vent 1212, and upper end steam vent 1211 is consistent with the orientation of lower end steam vent 1212 and the orientation of arc extinguishing grid pieces 1010.It is contemplated that the upper end steam vent 1211 exhaust side 1210 being offered when installing arc control device 10 is placed in above lower end steam vent 1212, and the aperture area of upper end steam vent 1211 is greater than the aperture area of lower end steam vent 1212.This kind of structural design is equivalent to the new arc stream passage of increase one, structure after improvement can allow most of electric arc from the bottom upwards end-transfer of arc control device, original arc stream is divided equally two-way, part arc stream flows through arc control device end portion and original venthole passage, and another part arc stream is transferred to arc control device upper part and flows through the arc stream passage newly opened.Thus the utilance of arc control device is improved, and the service efficiency of arc control device can be extended.Especially, described mounting cup 1200 is U-shaped structure, the opening side of the mounting cup 1200 of U-shaped structure is for entering arc side 1100, described exhaust side 1210 with enter arc side 1100 and be oppositely arranged, described arc extinguishing grid pieces 1010 to be arranged on side by side in mounting cup 1200 and jointly to be gripped by the fixation side 1220 that exhaust side 1210 two ends are extended respectively, and one end that every sheet arc extinguishing grid pieces 1010 correspondence enters arc side 1100 all offers breach, what the breach of every sheet arc extinguishing grid pieces 1010 constituted that corresponding moving contact 8 arranges enters arc cavity 1011, described moving contact 8 is corresponding with the fixed contact 9 that base 2 sidewall is arranged to be arranged and moving contact 8 can be placed in in arc cavity 1011.The mounting cup structure of U-shaped structure simply can reduce the assembling difficulty of arc extinguishing grid pieces, improves the efficiency of assembling of circuit breaker.Meanwhile, what the breach that arc extinguishing grid pieces one end is offered formed enter arc cavity can surround moving contact when moving contact is separated with fixed contact, the electric arc produced is drawn on the arc extinguishing grid pieces of arc control device rapidly and completes arc extinguishing, improve the arc extinguishing ability of circuit breaker during separation.
Particularly, the top and bottom of described exhaust side 1210 offer can the upper end steam vent 1211 that arrange corresponding to the arc extinguishing gap 1012 that the arc extinguishing grid pieces 1010 installed side by side in arc control device 10 is formed and lower end steam vent 1212 respectively, and described upper end steam vent 1211 can correspondingly with at least two arc extinguishing gaps 1012 be arranged, described lower end steam vent 1212 can correspondingly with arc extinguishing gap 1012 be arranged.Arc extinguishing gap corresponding to the steam vent of upper end is more than the arc extinguishing gap corresponding to the steam vent of lower end, the passage making arc stream flow through arc control device improves, structure after improvement can allow most of electric arc from the bottom upwards end-transfer of arc control device, original arc stream is divided equally two-way, and a part of arc stream flows through arc control device end portion and original venthole passage.Another part arc stream is transferred to arc control device upper part and flows through the arc stream passage newly opened.Thus the arc extinguishing grid pieces in arc control device is fully utilized, enhance arc extinguishing grid pieces to the cooling of electric arc with remove liberation, improve the useful life of arc control device and the arc extinguishing ability of circuit breaker.The upper end steam vent 1211 of the utility model exhaust side 1210 and the specific embodiment of lower end steam vent 1212 as shown in Figure 2, nine arc extinguishing grid pieces 1010 are installed in arc control device 10 side by side, the upper end of exhaust side 1210 is provided with a upper end steam vent 1211, described upper end steam vent 1211 extends to exhaust side 1210 middle part from the edge of exhaust side 1210 upper end can correspondingly with three arc extinguishing gaps 1012 that wherein four arc extinguishing grid pieces 1010 of arc control device 10 upper end are formed be arranged, the lower end of exhaust side 1210 is provided with vertically arrangement and shift to install four lower end steam vents 1212, four arc extinguishing gaps 1012 that each lower end steam vent 1212 can be formed with other five arc extinguishing grid pieces 1010 of arc control device 10 lower end are respectively corresponding one by one to be arranged.Upper end steam vent is only provided with one and can correspondingly with multiple arc extinguishing gap arranges, and at utmost makes part electric arc shift above arc control device and realizes electric arc divided, improve service efficiency and the arc extinguishing ability of arc control device.
The utility model specifically installs the structural representation of embodiment as shown in Figure 3, described base 2 both sides are provided with the junction block mounting groove 240 for installing junction block, described moving contact 8 comprises the contact part 801 that can be electrically connected with fixed contact 9, the sidewall of base 2 offers sidewall exhaust outlet 250, and described sidewall exhaust outlet 250 is corresponding with the upper end steam vent 1211 that the exhaust side 1210 of arc control device 10 is offered arranges.The sidewall exhaust outlet that base side wall is offered can be used for the flowing promoting arc control device steam vent institute Exhaust Gas, improves the arc extinguishing efficiency of breaker arc extinguishing mechanism.Sidewall exhaust outlet is corresponding with upper end steam vent is simultaneously arranged, and can guide arc stream into and shift upward, further increase the passage that arcing gas is discharged, improve the arc extinguishing efficiency of circuit breaker.Especially, the side of base 2 is provided with junction block mounting groove 240, and one end of sidewall exhaust outlet 250 is corresponding with upper end steam vent 1211 to be arranged, and the other end is connected with junction block mounting groove 240.One end of upper end steam vent is connected with junction block mounting groove, saves the space required for sidewall exhaust outlet, thus reduces the efficiency of assembling that base difficulty of processing improves circuit breaker.In addition, because the distance of junction block mounting groove and arc control device is short, the arc stream above arc control device therefore can be made to discharge fast and to improve arc extinguishing efficiency.
Particularly, described arc control device 10 are arranged on bottom the base 2 of circuit breaker, the both sides of arc control device 10 are respectively the exhaust side 1210 entering arc side 1100 and the setting of corresponding base 2 sidewall of corresponding moving contact 8 setting, the upper end of described exhaust side 1210 is provided with for shunting the upper end steam vent 1211 of arc stream to movement above arc control device 10, the sidewall of described base 2 one end is provided with can with the fixed contact 9 of moving contact 8 electrical contact, the other end offers the sidewall exhaust outlet 250 that arrange corresponding to upper end steam vent 1211.The schematic diagram of arc stream flowing in the arc control device as shown in the curve with arrow in Fig. 3.The utility model can make the arc stream shunting entering arc control device, thus allows the movement above arc control device of part arc stream that the service efficiency of arc control device is improved, and enhances the arc extinction performance of arc control device.And in arc control device, walk ' S ' road owing to allowing greater part electric arc.The magnetic flux path of electric arc, air-flow guiding, arc resistance, galvanomagnetic effect etc. are had a very large change, not only strengthens arc extinguishing grid pieces to the cooling of electric arc with remove liberation, but also increase the proximal pole pressure drop of electric arc and nearly cathode effect.Significantly improve the short circuit current interrupting performance of miniature circuit breaker.
Another concrete structural representation installing embodiment of the utility model as shown in Figure 4, the base 2 of described circuit breaker be provided with at least three parallel arranged and with arc control device 10 enter the corresponding arc partition wall 231 arranged in arc side 1100, can form the arc stream groove 230 for pilot arc between two adjacent arc partition walls 231, and the end of moving contact 8 is provided with and is suspended from arc stream groove 230 and can forms with fixed contact 9 contact part 801 be electrically connected.Arc stream groove forms by being arranged on parallel many arc partition walls arranged on base, makes arc stream groove structure simple and without the need to separately establishing the parts such as magnetic conduction sheet and arc separating wall, improves the efficiency of assembling of breaker arc extinguishing mechanism.In addition, the contact part of moving contact is arranged on the electric arc produced when moving contact being separated with fixed contact above arc stream groove and can is directed in arc control device rapidly, improves the arc extinguishing ability of breaker arc extinguishing mechanism.Especially, one end of arc partition wall 231 extends to into front, arc side 1100, and the other end extends to fixed contact 9 front that base 2 sidewall is installed, and the shape of arc partition wall 231 is consistent with the swinging track of contact part 801.What arc partition wall extended to arc control device from fixed contact enters arc side, and its curved shape is consistent with the contact part swinging track of moving contact, thus improve the striking effect of arc stream passage, make electric arc not easily burn other parts in circuit breaker and improve the stability of circuit breaker.
As shown in Figure 1 and Figure 4, the side of the base 2 of circuit breaker of the present utility model is provided with bimetal leaf 4, can promote latching device 5 during described bimetal leaf 4 heated bending makes the hasp face of itself and tripping mechanism 7 misplace, thus the moving contact 8 driving tripping mechanism 7 end to install has been separated the trip action of circuit breaker with fixed contact 9.And be provided with in base 2 and correspondingly with the end of bimetal leaf 4 arrange and can be used for indicating the graduation indication portion 3 of circuit breaker bimetal sheet 4 reference position.Graduation indication portion is as bimetal leaf position indicating structure, make product directly bimetal leaf can be adjusted to assigned position when assembling, improve the production efficiency of follow-up adjustment operation, in the consistency situation ensureing preliminary processes, even can remove follow-up adjustment operation, directly by presetting object and the requirement reaching product adjustment of bimetal leaf position.
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 breaker arc extinguishing mechanism, comprise arc control device (10), it is characterized in that: described arc control device (10) comprise at least two panels arc extinguishing grid pieces (1010) installed side by side in mounting cup (1200) and mounting cup (1200), the side of described mounting cup (1200) be hatch frame enter arc side (1100), described enter that arc side (1100) is corresponding with the moving contact (8) of circuit breaker to be arranged, the opposite side of mounting cup (1200) is the exhaust side (1210) of closing structure;
The two ends of described exhaust side (1210) offer at least one upper end steam vent (1211) for discharging arcing gas and at least one lower end steam vent (1212) respectively, and the aperture area of described upper end steam vent (1211) is greater than the aperture area of lower end steam vent (1212).
2. breaker arc extinguishing mechanism according to claim 1, it is characterized in that: the sidewall of the base (2) of described circuit breaker offers sidewall exhaust outlet (250), and described sidewall exhaust outlet (250) is corresponding with the upper end steam vent (1211) that the exhaust side (1210) of arc control device (10) is offered arranges.
3. breaker arc extinguishing mechanism according to claim 1, it is characterized in that: described mounting cup (1200) is U-shaped structure, the opening side of the mounting cup (1200) of U-shaped structure is for entering arc side (1100), described exhaust side (1210) with enter arc side (1100) and be oppositely arranged, described arc extinguishing grid pieces (1010) to be arranged on side by side in mounting cup (1200) and jointly to be gripped by the fixation side (1220) that exhaust side (1210) two ends are extended respectively, and one end that every sheet arc extinguishing grid pieces (1010) correspondence enters arc side (1100) all offers breach, what the breach of every sheet arc extinguishing grid pieces (1010) constituted that corresponding moving contact (8) arranges enters arc cavity (1011), described moving contact (8) is corresponding with the fixed contact (9) that base (2) sidewall is arranged to be arranged and moving contact (8) can be placed in in arc cavity (1011).
4. breaker arc extinguishing mechanism according to claim 1, it is characterized in that: the top and bottom of described exhaust side (1210) offer can the upper end steam vent (1211) that arrange corresponding to the arc extinguishing gap (1012) that the arc extinguishing grid pieces (1010) installed side by side in arc control device (10) is formed and lower end steam vent (1212) respectively, described upper end steam vent (1211) is consistent with the orientation of lower end steam vent (1212) and the orientation of arc extinguishing grid pieces (1010), and upper end steam vent (1211) can correspondingly with at least two arc extinguishing gaps (1012) be arranged, lower end steam vent (1212) can correspondingly with arc extinguishing gap (1012) be arranged.
5. breaker arc extinguishing mechanism according to claim 1, it is characterized in that: nine arc extinguishing grid pieces (1010) are installed in described arc control device (10) side by side, the upper end of described exhaust side (1210) is provided with a upper end steam vent (1211), described upper end steam vent (1211) extends to exhaust side (1210) middle part from the edge of exhaust side (1210) upper end can correspondingly with three arc extinguishing gaps (1012) that wherein four arc extinguishing grid pieces (1010) of arc control device (10) upper end are formed be arranged, the lower end of exhaust side (1210) is provided with vertically arrangement and shift to install four lower end steam vents (1212), four arc extinguishing gaps (1012) that each lower end steam vent (1212) can be formed with other five arc extinguishing grid pieces (1010) of arc control device (10) lower end are respectively corresponding one by one to be arranged.
6. breaker arc extinguishing mechanism according to claim 2, it is characterized in that: the side of described base (2) is provided with junction block mounting groove (240), one end of described sidewall exhaust outlet (250) is corresponding with upper end steam vent (1211) to be arranged, and the other end is connected with junction block mounting groove (240).
7. breaker arc extinguishing mechanism according to claim 1, it is characterized in that: described arc control device (10) are arranged on base (2) bottom of circuit breaker, what the both sides of arc control device (10) were respectively that corresponding moving contact (8) arranges enter arc side (1100) and the exhaust side (1210) that corresponding base (2) sidewall is arranged, the upper end of described exhaust side (1210) is provided with for shunting the upper end steam vent (1211) of arc stream to arc control device (10) top movement, the sidewall of described base (2) one end is provided with can with the fixed contact (9) of moving contact (8) electrical contact, the other end offers the sidewall exhaust outlet (250) that arrange corresponding to upper end steam vent (1211).
8. breaker arc extinguishing mechanism according to claim 1, it is characterized in that: the base (2) of described circuit breaker be provided with at least three parallel arranged and with arc control device (10) enter the corresponding arc partition wall (231) arranged in arc side (1100), can form the arc stream groove (230) for pilot arc between two adjacent arc partition walls (231), and the end of moving contact (8) is provided with and is suspended from arc stream groove (230) and can forms with fixed contact (9) contact part (801) be electrically connected.
9. breaker arc extinguishing mechanism according to claim 8, it is characterized in that: one end of described arc partition wall (231) extends to into arc side (1100) front, the other end extends to fixed contact (9) front that base (2) sidewall is installed, and the shape of arc partition wall (231) is consistent with the swinging track of contact part (801).
10. breaker arc extinguishing mechanism according to claim 1, it is characterized in that: the side of the base (2) of circuit breaker is provided with bimetal leaf (4), be provided with in base (2) and correspondingly with the end of bimetal leaf (4) arrange and can be used for indicating the graduation indication portion (3) of circuit breaker bimetal sheet (4) reference position.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420675673.2U CN204257457U (en) | 2014-11-13 | 2014-11-13 | Breaker arc extinguishing mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420675673.2U CN204257457U (en) | 2014-11-13 | 2014-11-13 | Breaker arc extinguishing mechanism |
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| CN204257457U true CN204257457U (en) | 2015-04-08 |
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| CN201420675673.2U Active CN204257457U (en) | 2014-11-13 | 2014-11-13 | Breaker arc extinguishing mechanism |
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| CN105742135A (en) * | 2016-04-27 | 2016-07-06 | 乐清市也为电气有限公司 | Exhaust arc extinguishing system for leakage current breaker |
| WO2017076140A1 (en) * | 2015-11-02 | 2017-05-11 | 上海电科电器科技有限公司 | Circuit breaker and exhaust structure thereof |
| CN107293458A (en) * | 2016-03-30 | 2017-10-24 | 浙江正泰电器股份有限公司 | Miniature circuit breaker |
| WO2018072254A1 (en) * | 2016-10-21 | 2018-04-26 | 浙江正泰电器股份有限公司 | Arc-quenching chamber for use with universal circuit breakers |
| CN108010769A (en) * | 2017-12-28 | 2018-05-08 | 加西亚电子电器股份有限公司 | A kind of arc-extinguishing chamber of circuit breaker |
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| CN105742135B (en) * | 2016-04-27 | 2018-09-07 | 乐清市也为电气有限公司 | A kind of exhaust arc quenching system of leakage circuit breakers |
| CN105742135A (en) * | 2016-04-27 | 2016-07-06 | 乐清市也为电气有限公司 | Exhaust arc extinguishing system for leakage current breaker |
| WO2018072254A1 (en) * | 2016-10-21 | 2018-04-26 | 浙江正泰电器股份有限公司 | Arc-quenching chamber for use with universal circuit breakers |
| CN107978499A (en) * | 2016-10-21 | 2018-05-01 | 浙江正泰电器股份有限公司 | Omnipotent breaker arc-chutes |
| CN108010769A (en) * | 2017-12-28 | 2018-05-08 | 加西亚电子电器股份有限公司 | A kind of arc-extinguishing chamber of circuit breaker |
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