CN2812271Y - Operating mechanism for circuit breaker - Google Patents
Operating mechanism for circuit breaker Download PDFInfo
- Publication number
- CN2812271Y CN2812271Y CN 200520074214 CN200520074214U CN2812271Y CN 2812271 Y CN2812271 Y CN 2812271Y CN 200520074214 CN200520074214 CN 200520074214 CN 200520074214 U CN200520074214 U CN 200520074214U CN 2812271 Y CN2812271 Y CN 2812271Y
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- axle
- lever
- side plate
- energy storage
- circuit breaker
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Abstract
A kind of circuit breaker operation mechanism, form by the stored energy mechanism, the trip free operating mechanism that are installed on operating mechanism cover plate, side plate and another side plate, in the trip free operating mechanism, the dropout lever is contained in axle and goes up and rotate around it, described dropout lever one end is equipped with spring, its other end touches mutually with the dropout semiaxis, also is connected with axle on described dropout lever, and roller axle sleeve therewith connects; Lever is contained on side plate and another side plate with axle, and lever one end and connecting rod are connected on the fulcrum D, and its other end touches mutually with described roller; The energy storage lever of ， Cheng shape is contained on the axle and rotates around it in stored energy mechanism, and the crescent that is provided with on the described energy storage lever is slidingly matched with axle, and the two ends of described energy storage lever touch mutually with roller, energy storage semiaxis respectively.The utility model interrupting performance is reliable, its actuating force, release volume are respectively similar circuit breaker 1/3～1/4, compact conformation, be beneficial to the miniaturization Design of circuit breaker, is applicable to the low pressure all-purpose circuit breaker.
Description
Technical field
The utility model relates to a kind of circuit breaker operation mechanism, and especially a kind of employing secondary is detained mode again, the little and operating mechanism of reliable low pressure all-purpose circuit breaker of switching force.
Background technology
The operating mechanism of circuit breaker mainly is made up of stored energy mechanism and trip free operating mechanism two parts, and the trip free operating mechanism is one of critical component of circuit breaker.The most one-level buttons again that adopt of trip free operating mechanism commonly used have simple in structure, reliable in action, advantage that parts are few, and its weak point is that separating brake power is big, have prolonged the operate time of circuit breaker relatively and have reduced the interrupting performance of circuit breaker.To hardness, intensity and the requirement on machining accuracy height of vital part such as semiaxis, cramp, the processing and manufacturing difficulty is bigger in addition.Also electromagnet such as the magnetic flow convertor of requirement execution separating brake task, shunt release have enough big thrust simultaneously, certainly will increase the volume of electromagnet like this, cost is increased, and brought certain difficulty for the miniaturization that realizes circuit breaker.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of reliable in action, divide-shut brake power is little, is beneficial to the circuit breaker operation mechanism of miniaturization Design.
For solving the problems of the technologies described above, circuit breaker operation mechanism of the present utility model is made up of the stored energy mechanism, the trip free operating mechanism that are installed on the operating mechanism side plate, wherein, the trip free operating mechanism comprises lever, axle, spring, connecting rod, main shaft, shunt release, roller, dropout lever, spring, described dropout lever is contained in axle and goes up and rotate around it, dropout lever one end is equipped with spring, its other end touches mutually with the dropout semiaxis, also be connected with axle on described dropout lever, roller and axle sleeve connect; Lever is fixed on the side plate with axle, and one end and connecting rod are connected on the fulcrum D, and its other end touches mutually with described roller, and an end of described spring is socketed on the lever, and its other end is fixed on the axle that is positioned on the side plate.Stored energy mechanism comprises dropout semiaxis, energy storage lever, axle, energy-stored spring, energy storage semiaxis, lever, spring, cam, roller, button, releases the energy release, is
The energy storage lever of shape is contained in axle and goes up and rotate around it, and described energy storage lever is provided with a crescent, and described crescent is slidingly matched with axle, and this axle is fixed on the side plate, and described energy storage lever one end touches mutually with roller, and its other end touches mutually with the energy storage semiaxis.
As a kind of improvement of the present utility model, described lever, two connecting rods and main shaft constitute four connection rod set; Described shunt release is fixing on the cover board, and described cover plate is installed on side plate and another side plate of operating mechanism.
As another kind of improvement the of the present utility model, described lever one end touches mutually with the dropout semiaxis, and its other end is boss shape and corresponding and touch mutually with the energy storage semiaxis boss on being positioned at side plate.
After adopting said structure, be in this operating mechanism
The energy storage lever of shape rotates around fixed axis, be formed centrally the energy storage arm of force in end that described energy storage lever and roller touch mutually and the fixed axis, be formed centrally in the other end that it touches mutually with the energy storage semiaxis and the said fixing axle that release can the arm of force, the ratio of this two arm of force is about 1: 3.5, the energy storage lever is greatly reduced the normal pressure of energy storage semiaxis, only need less power just to be enough to drive the energy storage semiaxis and rotate, reliably finish breaker closing; The lever sliding transfer that the utility model utilization is provided with crescent reaches lever two limit positions location; The trip free operating mechanism adopts secondary to detain mode again, it is the post rod type structure that prime adopts the roller contact, dropout frictional force is little, the back level adopts the semiaxis buckle piece type, favourable conversion by rational arm of force ratio, obtain lighter tripping force, reduced the manufacture difficulty of lever and semiaxis, for the volume that dwindles shunt release and device for under-voltage releasing equipment brings advantage; After the architecture advances of the utility model by above-mentioned two parts, compare with similar circuit breaker commonly used, its volume of releasing energy electromagnet, shunt release and device for under-voltage releasing equipment is about 1/3～1/4 of similar circuit breaker, required actuating force is about 1/3 of similar circuit breaker commonly used, reliability, the corresponding raising of interrupting performance, it is simple and compact for structure, has created advantage for realizing the circuit breaker miniaturization Design.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 is a kind of stored energy mechanism structural representation of this circuit breaker operation mechanism.
Fig. 2 shows the structural representation of a kind of trip free operating mechanism of this circuit breaker operation mechanism.
Embodiment
As seen from Figure 1, Figure 2, circuit breaker operation mechanism of the present utility model, form by the stored energy mechanism, the trip free operating mechanism that are installed on operating mechanism cover plate 9, side plate 8 and another side plate, described stored energy mechanism comprises dropout semiaxis 10, energy storage lever 5, axle 4, axle 6, energy-stored spring 1, energy storage semiaxis 16, lever 7, spring 17,11, axle 12, cam 19, roller 3, button 14, releases energy release 13, is
The energy storage of shape twist bar 5 be contained in the axle 4 on and rotate around it, described energy storage lever 5 is provided with a crescent 5-1, described crescent 5-1 is slidingly matched with axle 6, play and release the position-limiting action that can and reset, described axle 4, axle 6 are fixed in respectively on another side plate of side plate 8 and operating mechanism, and this another side plate and side plate 8 structures are symmetrical, and are all not shown in Fig. 1, Fig. 2, described energy storage lever 5 one ends touch mutually with roller 3, and its other end touches mutually with energy storage semiaxis 16.Described roller 3 is contained on the axle 2 that is positioned on the cam 19, and cam 19 connects with rotating shaft 20 flat tenons, roller 3 and rotating shaft 20 interlocks.Described axle 12 is fixed on the side plate 8, and spring 11 1 ends tightly are enclosed within on the axle 12, and its other end links to each other with lever 7, and described lever 7 one ends touch mutually with dropout semiaxis 10, and energy storage semiaxis 16 boss on its other end is the boss shape and is positioned at side plate 8 are corresponding and touch mutually.Dropout semiaxis 10, energy storage semiaxis 16, axle 15 all are contained on side plate 8 and another side plate of operating mechanism, and described lever 7 forms fulcrum A with the contact position of dropout semiaxis 10 under the effect of spring 11, and lever 7 rotates around fulcrum A.Cover plate 9 is contained on the side plate, releases to be contained on the cover plate 9 by release 13, and button 14 is installed on the axle 15 and around axle 15 and rotates, and spring 17 1 ends are fixed on the side plate 8 by axle 18, and its other end connects energy storage lever 5.In the time of the circuit breaker energy pre-storage, roller 3 rotates and stretching energy-stored spring 1 around fulcrum B clockwise direction with cam 19, is blocked when roller 3 is run into energy storage lever 5, and energy storage lever 5 is buckled on the energy storage semiaxis 16, and this moment, energy pre-storage declared to be finished.The appropriate design energy storage arm of force with release can the arm of force ratio be about 1: 3.5, under the greatly reduction situation of normal pressure of 5 pairs of energy storage semiaxis 16 of energy storage lever, only need small driving force can realize the reliable combined floodgate of circuit breaker like this.When breaker open operation, dropout semiaxis 10 clockwise rotates, and lever 7 leaves the energy storage semiaxis corresponding with it 16 corresponding boss to its front end boss of left movement, though release this moment can electromagnet 13 actions, or press button 14 and all can not drive the energy storage semiaxis and rotate.Only, could effectively drive energy storage semiaxis 16 in diagram energy storage buckle position.
By a kind of trip free operating mechanism of the present utility model shown in Fig. 2, described trip free operating mechanism comprises lever 30, axle 31, spring 29, connecting rod 33,22, main shaft 23, axle 31, shunt release 24, roller 27, axle 26, dropout lever 25, axle 6, axle 32, spring 34, dropout lever 25 is contained on the axle 6 and rotates around it, described dropout lever 25 1 ends are equipped with spring 29, its other end touches mutually with dropout semiaxis 10, on described dropout lever 25, also be connected with axle 26, roller 27 and axle 26 sockets; Lever 30 usefulness axle 31 is contained on the side plate 8, and one end and connecting rod 33 are connected on the fulcrum D, and its other end touches mutually with described roller 27, and an end of described spring 34 is socketed on the lever 30, and its other end tightly is enclosed within on the axle 32 that is positioned on the side plate 8.As shown in Figure 2, circuit breaker is in "on" position, connects with pivot pin respectively between lever 30, connecting rod 33, connecting rod 22 and the main shaft 23 and forms four connection rod set, and bearing 21 is installed in the E point place of four connection rod set.Main shaft 23 and axle 31 are installed in respectively on side plate 8 and another side plate of operating mechanism.Shunt release 24 is installed on the cover plate 9, and cover plate 9 is installed on the biside plate.Roller 27 is enclosed within on the axle 26, and axle 26 is fixed on the dropout lever 25, and dropout lever 25 is installed on the axle 6 and around it and rotates.Axle 28 is fixed on the side plate 8, and spring 29 1 ends are installed on the axle 28, and the other end is installed on the dropout lever 25.Axle 32 is fixed on the side plate 8, and spring 34 1 ends are contained on the axle 32, and its other end is socketed on the lever 30.During breaker open operation, the push rod that drives shunt release 24 moves downward, dropout semiaxis 10 is clockwise rotated, dropout lever 25 is triped and is clockwise rotated around axle 6, lever 30 can be buckled around axle 31 and clockwise rotate simultaneously, and described four connection rod set are disintegrated immediately and become C-D-E-F-G five connection rod set, bearing 21 along cam 19 arc surfaces to lower slider, main shaft 23 loses a winding G point and rotates counterclockwise and drive the in succession connecting rod (not shown) of moving contact and move together, and circuit breaker disconnects fast.If manually pressing the button (not shown) can finish said process equally, make breaker open operation.When the circuit breaker stored energy operation, cam 19 rotates counterclockwise, and bearing 21 breaks away from the cam circle cambered surfaces to the place, inclined-plane, and under the pulling of spring 34 and spring 29, lever 30 and dropout lever 25 successively rotate counterclockwise to enter and buckle state again and await orders.
Claims (5)
1, a kind of circuit breaker operation mechanism, by being installed in operating mechanism cover plate (9), stored energy mechanism on side plate (8) and another side plate, the trip free operating mechanism is formed, it is characterized in that: described trip free operating mechanism comprises lever (30), axle (31), spring (29), connecting rod (33), (22), main shaft (23), axle (31), shunt release (24), roller (27), axle (26), dropout lever (25), axle (6), axle (32), spring (34), described dropout lever (25) is contained in axle (6) and goes up and rotate around it, dropout lever (25) one ends are equipped with spring (29), its other end touches mutually with dropout semiaxis (10), on described dropout lever (25), also be connected with axle (26), roller (27) and axle (26) socket; Lever (30) is contained on the side plate (8) with axle (31), one end and connecting rod (33) are connected on the fulcrum D, its other end touches mutually with described roller (27), and described spring (34) one ends are socketed on the lever (30), and its other end is fixed on the axle (32) that is positioned on the side plate (8).
2, circuit breaker operation mechanism according to claim 1 is characterized in that: described lever (30), connecting rod (33), (22) and main shaft (23) constitute four connection rod set.
3, circuit breaker operation mechanism according to claim 1 is characterized in that: described shunt release (24) is fixed on the cover plate (9), and described cover plate (9) is installed on side plate (8) and another side plate of operating mechanism.
4, a kind of circuit breaker operation mechanism, form by the stored energy mechanism, the trip free operating mechanism that are installed on operating mechanism cover plate (9), side plate (8) and another side plate, it is characterized in that: described stored energy mechanism comprises dropout semiaxis (10), energy storage lever (5), axle (4), axle (6), energy-stored spring (1), energy storage semiaxis (16), lever (7), spring (17), (11), axle (12), cam (19), roller (3), button (14), releases energy release (13), is
The energy storage lever (5) of shape is contained in axle (4) and goes up and rotate around it, described energy storage lever (5) is provided with a crescent (5-1), described crescent (5-1) is slidingly matched with axle (6), described axle (4), axle (6) are fixed in respectively on another side plate of side plate (8) and operating mechanism, described energy storage lever (5) one ends touch mutually with roller (3), and its other end touches mutually with energy storage semiaxis (16).
5, circuit breaker operation mechanism according to claim 4, it is characterized in that described axle (12) is fixed on the side plate (8), spring (11) one ends tightly are enclosed within on the axle (12), its other end is connected with lever (7), described lever (7) one ends touch mutually with dropout semiaxis (10), and its other end is boss shape and corresponding and touch mutually with energy storage semiaxis (16) boss on being positioned at side plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520074214 CN2812271Y (en) | 2005-08-02 | 2005-08-02 | Operating mechanism for circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520074214 CN2812271Y (en) | 2005-08-02 | 2005-08-02 | Operating mechanism for circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2812271Y true CN2812271Y (en) | 2006-08-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520074214 Expired - Fee Related CN2812271Y (en) | 2005-08-02 | 2005-08-02 | Operating mechanism for circuit breaker |
Country Status (1)
| Country | Link |
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| CN (1) | CN2812271Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101964283A (en) * | 2010-10-29 | 2011-02-02 | 天津市百利电气有限公司 | Air circuit breaker with mating part pull-in aid piece of undervoltage tripper reliably fixed |
| CN102789932A (en) * | 2011-05-20 | 2012-11-21 | 中环光伏系统有限公司 | Electronic circuit breaker for solar cell module string and protection method |
| CN104332363A (en) * | 2013-07-22 | 2015-02-04 | 上海良信电器股份有限公司 | Switching off-and-on operating mechanism for circuit breaker |
| CN106710982A (en) * | 2015-07-16 | 2017-05-24 | 上海良信电器股份有限公司 | Control mechanism for circuit breaker operating mechanism |
-
2005
- 2005-08-02 CN CN 200520074214 patent/CN2812271Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101964283A (en) * | 2010-10-29 | 2011-02-02 | 天津市百利电气有限公司 | Air circuit breaker with mating part pull-in aid piece of undervoltage tripper reliably fixed |
| CN101964283B (en) * | 2010-10-29 | 2013-05-22 | 天津市百利电气有限公司 | Air circuit breaker with mating part pull-in aid piece of undervoltage tripper reliably fixed |
| CN102789932A (en) * | 2011-05-20 | 2012-11-21 | 中环光伏系统有限公司 | Electronic circuit breaker for solar cell module string and protection method |
| CN104332363A (en) * | 2013-07-22 | 2015-02-04 | 上海良信电器股份有限公司 | Switching off-and-on operating mechanism for circuit breaker |
| CN106710982A (en) * | 2015-07-16 | 2017-05-24 | 上海良信电器股份有限公司 | Control mechanism for circuit breaker operating mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060830 Termination date: 20140802 |
|
| EXPY | Termination of patent right or utility model |