CN109346388B - Circuit breaker with electric operating device - Google Patents
Circuit breaker with electric operating device Download PDFInfo
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- CN109346388B CN109346388B CN201811443479.0A CN201811443479A CN109346388B CN 109346388 B CN109346388 B CN 109346388B CN 201811443479 A CN201811443479 A CN 201811443479A CN 109346388 B CN109346388 B CN 109346388B
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- 230000007246 mechanism Effects 0.000 claims abstract description 62
- 230000005540 biological transmission Effects 0.000 claims abstract description 23
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 239000004973 liquid crystal related substance Substances 0.000 claims description 8
- 230000033001 locomotion Effects 0.000 description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 241000227287 Elliottia pyroliflora Species 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/42—Induction-motor, induced-current, or electrodynamic release mechanisms
- H01H71/43—Electrodynamic release mechanisms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/66—Power reset mechanisms
- H01H71/70—Power reset mechanisms actuated by electric motor
Abstract
The utility model provides a circuit breaker with electric operating device, includes circuit breaker and electric operating device body, circuit breaker body upper surface sets up divide-shut brake handle, its characterized in that: the electric operation device comprises an electric operation mechanism, an intermediate transmission mechanism, a unidirectional transmission mechanism, a handle pushing mechanism, a switching-on/off indicating mechanism, a fixed upper plate and a fixed lower plate; the invention provides an integrated circuit breaker which has the advantages of simple structure, small volume, small mass, good reliability, difficult damage and low cost, and realizes the electric control of the circuit breaker.
Description
Technical Field
The invention relates to the technical field of circuit breakers, in particular to a circuit breaker with an electric operating device.
Background
With the development of new energy technology, particularly power distribution technology, brand new use requirements are put forward for the use occasions of the circuit breaker. The circuit breaker is a mechanical switching device which can be used for switching on, carrying and breaking current under the condition of normal circuit and also can be used for switching on, carrying for a certain time and breaking current under the condition of specified abnormal circuit. The circuit breaker has overload and short-circuit protection functions, and can protect lines and power equipment from damage. The common breaker can complete the automatic switching-off function except when the line current exceeds a preset value or is short-circuited, and manual operation is needed for switching off or switching on at other times.
The development trend of the current electrical appliance is towards the development of intellectualization and automation, and the current technical personnel have also developed several electric circuit breakers to realize electric closing and opening, and the existing electric circuit breakers are formed by combining two independent parts of the circuit breakers and an electric operating mechanism, so that the manufacturing process is finished, the structure is complex, and in order to realize electric operation, the whole volume of the product is often enlarged, the quality is enlarged, and the cost and the manufacturing cost are high. The invention provides an integrated circuit breaker which has the advantages of simple structure, small volume, small mass, good reliability, difficult damage and low cost, and realizes the electric control of the circuit breaker.
Disclosure of Invention
The invention aims to provide a circuit breaker with an electric operating device.
The purpose of the invention is realized in the following way: the utility model provides a circuit breaker with electric operating device, includes circuit breaker body and electric operating device, circuit breaker body upper surface sets up divide-shut brake handle, its characterized in that: the electric operation device comprises an electric operation mechanism, an intermediate transmission mechanism, a unidirectional transmission mechanism, a handle pushing mechanism, a switching-on/off indicating mechanism, a fixed upper plate and a fixed lower plate;
the fixed lower plate is fixedly connected with the upper end face of the circuit breaker shell, the fixed upper plate is fixedly connected with the upper surface of the fixed lower plate, and the fixed upper plate is provided with a first perspective hole;
the electric operating mechanism comprises a motor, the motor is fixedly connected with the fixed upper plate, and the output end of the motor is connected with a worm;
the middle transmission mechanism is positioned between the fixed upper plate and the fixed lower plate and comprises a turbine and a gear shaft, the gear shaft is fixedly arranged on the fixed lower plate, a through hole is formed in the axial center of the turbine, the turbine is sleeved on the gear shaft and meshed with the gear shaft, and the turbine is meshed with the worm;
the unidirectional transmission mechanism comprises a rotating shaft, a gear, unidirectional needle bearings and a cam, wherein the rotating shaft penetrates through the fixed upper plate and the fixed lower plate, a shaft sleeve is arranged at the joint of the rotating shaft, the fixed upper plate and the fixed lower plate, the gear is positioned between the fixed upper plate and the fixed lower plate, the unidirectional needle bearings are sleeved between the gear and the rotating shaft, one end of the rotating shaft is fixedly provided with the cam, the cam is positioned below the fixed lower plate, a positioning shaft is arranged on the cam, the positioning shaft is connected with the cam through bearings, and the gear shaft is meshed with the gear;
the handle pushing device comprises a sliding rod and a sliding block which moves along the axial direction of the sliding rod, two ends of the sliding rod are fixedly connected with the fixed lower plate, a groove is formed in the sliding block, and the positioning shaft is positioned in the groove;
the opening and closing indicating mechanism comprises an indicating slide plate and an installing plate, wherein the indicating slide plate is in non-fixed connection with the installing plate through a locating pin, the installing plate is fixedly connected with the fixed lower plate, the upper end of the indicating slide plate is located below the first perspective hole, and the other end of the indicating slide plate is in contact with a moving contact of the circuit breaker body.
The upper end face of the rotating shaft is provided with a groove. Through external force, through groove structure rotation pivot, realize manual control circuit breaker's function.
The electric operation device further comprises a tripping device, the tripping device comprises a reset plate, a compression spring and a limiting plate, the reset plate is fixedly connected with the fixed lower plate, one end of the reset plate protrudes out of an upper end cover of the electric operation device, the other end of the reset plate is connected with a tripping rod in the circuit breaker body, the compression spring is sleeved on the reset plate, the limiting plate is fixed on one end of the reset plate, and the compression spring is located between the limiting plate and the fixed lower plate. The tripping device is a device for releasing the main contact of the circuit breaker in combination with the electricity and the machinery, which is an important part of the circuit breaker, unlike the breaking of the circuit breaker. The tripping device is used for tripping when overcurrent occurs and releasing the main contact of the circuit breaker.
The handle pushing device further comprises a first extension spring, one end of the first extension spring is connected with the sliding block, the other end of the first extension spring is connected with the spring fixing plate, and the spring fixing plate is fixed on the fixed lower plate through bolts. The structure can realize the function of quick resetting of the handle pushing device.
The switch-on/off indicating mechanism further comprises a micro switch and a second stretching spring, wherein the micro switch is fixed on the mounting plate through a bolt, one end of the second stretching spring is connected with the indication slide plate, and the other end of the second stretching spring is connected with the mounting plate. By adopting the structure, the rapid resetting function of the opening and closing indicating mechanism can be realized.
The electric operating device upper end cover is provided with a second perspective hole, a manual operating hole, a switch, an indicating button and a liquid crystal screen, the first perspective hole corresponds to the second perspective hole, the manual operating hole corresponds to the groove on the upper end face of the rotating shaft, and the switch, the indicating button, the liquid crystal screen and the motor are connected with the circuit board.
The invention has the beneficial effects that: the invention has the advantages of simple structure, small volume, small mass, good reliability, difficult damage and low cost; the circuit breaker layout is optimized, the circuit breaker can be installed rapidly, the structure is compact, the installation of the conventional circuit breaker in a switch cabinet is not influenced in structural height after the power operation device is powered, the automatic reclosing function of the circuit breaker is realized, and the modularization and integration functions of conventional products are realized.
Drawings
The invention will be further described with reference to the accompanying drawings
Fig. 1: the invention is a general assembly drawing;
fig. 2: the invention removes the structure schematic diagram of the upper end cover of the electric operating device;
fig. 3: the structure of the electric operating device is schematically shown;
fig. 4: the structure of the electric operating mechanism and the intermediate transmission mechanism is schematically shown;
fig. 5: the structure of the unidirectional movement mechanism is schematically shown;
fig. 6: the invention discloses an explosion schematic diagram of a unidirectional movement mechanism structure;
fig. 7: the handle pushing device of the invention has an explosion schematic;
fig. 8: the handle pushing device and the opening and closing handle work state schematic diagram are provided;
fig. 9: the invention discloses a switching-on/off indicating mechanism schematic diagram;
fig. 10: the invention is assembled with an exploded view.
Description of the drawings: 1. an upper end cap of the electric operating device; 2. an electrically operated device housing; 3. a base; 4. a second transparent hole; 5. a manual operation hole; 6. a switch; 7. an indication button; 8. a liquid crystal panel; 9. a motor; 10. fixing the upper plate; 11. fixing the lower plate; 12. a limiting piece; 13. a compression spring; 14. a reset plate; 15. a spring fixing plate; 16. a first extension spring; 17. a slide bar; 18. a rubber block; 19. a limiting plate; 20. a rotating shaft; 21. a copper sleeve; 22. a gear; 23. a one-way needle bearing; 24. a cam; 25. a positioning plate; 26. a bearing; 27. a cushion block; 28. positioning a shaft; 29. a worm; 30. a worm wheel; 31. a gear shaft; 32. a copper sleeve; 33. indication slide board; 34. a micro-switch; 35. a second tension spring; 36. a positioning pin; 37. a mounting plate; 38. an opening and closing handle; 39. a slide block; 40. a first transparent hole; 41. an electric operating mechanism; 42. an intermediate transmission mechanism; 43. a unidirectional transmission mechanism; 44. a handle pushing mechanism; 45. and the opening and closing indicating mechanism.
The invention will now be described in further detail by way of example with reference to the accompanying drawings, which are only examples of the invention and are not intended to limit the scope of the invention as defined in the claims.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention, and the following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The terms "upper", "lower", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description of the present invention and for simplification of description. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1
Referring to fig. 1 to 10, a circuit breaker with electric operation device, including circuit breaker body and electric operation device, circuit breaker body upper surface sets up divide-shut brake handle 38, its characterized in that: the electric operation device comprises an electric operation mechanism 41, an intermediate transmission mechanism 42, a unidirectional transmission mechanism 43, a handle pushing mechanism 44, a switching-on/off indicating mechanism 45, a fixed upper plate 10 and a fixed lower plate 11;
the fixed lower plate 11 is fixedly connected with the upper end surface of the circuit breaker shell, the fixed upper plate 10 is fixedly connected with the upper surface of the fixed lower plate 11, and the fixed upper plate is provided with a first perspective hole 40;
the electric operating mechanism 41 comprises a motor 9, the motor 9 is fixedly connected with the fixed upper plate 10, and the output end of the motor 9 is contacted with the worm 29;
the intermediate transmission mechanism 42 is located between the fixed upper plate 10 and the fixed lower plate 11, the intermediate transmission mechanism 42 includes a turbine 30 and a gear shaft 31, the gear shaft 31 is fixedly installed on the fixed lower plate 11, a through hole with an internal gear is formed in the axial center of the turbine 30, the turbine 30 is sleeved on the gear shaft 31 and meshed with each other, and the turbine 30 is meshed with the worm 29;
the unidirectional transmission mechanism 43 comprises a rotating shaft 20, a gear 22, a unidirectional needle bearing 23 and a cam 24, wherein the rotating shaft 20 penetrates through the fixed upper plate 10 and the fixed lower plate 11, a shaft sleeve 21 is arranged at the joint of the rotating shaft 20 and the fixed upper plate 10 and the fixed lower plate 11, the gear 22 is positioned between the fixed upper plate 10 and the fixed lower plate 11, the unidirectional needle bearing 23 is sleeved between the gear 22 and the rotating shaft 20, one end of the rotating shaft 20 is fixedly provided with the cam 24, the cam 24 is positioned below the fixed lower plate 11, a positioning shaft 28 is arranged on the cam 24, the positioning shaft 28 is connected with the cam 24 through a bearing 26, and the gear shaft 31 is meshed with the gear 22;
the handle pushing device 44 comprises a slide bar 17 and a slide block 39 axially moving along the slide bar 17, two ends of the slide bar 17 are fixedly connected with the fixed lower plate 11, the slide block 39 is provided with a groove, and the positioning shaft 28 is positioned in the groove;
the opening and closing indicating mechanism 45 comprises an indicating slide plate 33 and an installing plate 37, the indicating slide plate 33 is in non-fixed connection with the installing plate 37 through a locating pin 36, the installing plate 37 is fixedly connected with the fixed lower plate 11, the upper end of the indicating slide plate 33 is located below the first perspective hole 40, and the other end of the indicating slide plate 33 is in contact with a moving contact of the circuit breaker body.
The upper end surface of the rotating shaft 20 is provided with a groove.
The electric operation device 41 further comprises a tripping device, the tripping device comprises a reset plate 14, a compression spring 13 and a limiting plate 12, the reset plate 14 is fixedly connected with the fixed lower plate 11, one end of the reset plate 14 protrudes out of the upper end cover 1 of the electric operation device, the other end of the reset plate 14 is connected with a tripping rod in the circuit breaker body, the compression spring 13 is sleeved on the reset plate 14, the limiting plate 12 is fixed on one end of the reset plate 14, and the compression spring 13 is positioned between the limiting plate 12 and the fixed lower plate 11.
The handle pushing device 44 further comprises a first extension spring 16, one end of the first extension spring 16 is connected with the sliding block 39, the other end of the first extension spring 16 is connected with the spring fixing plate 15, and the spring fixing plate 15 is fixed on the fixed lower plate 11 through bolts.
The switch-on/off indicating mechanism 45 further comprises a micro switch 34 and a second extension spring 35, the micro switch 34 is fixed on the mounting plate 37 through a bolt, one end of the second extension spring 35 is connected with the indication slide plate 33, and the other end of the second extension spring 35 is connected with the mounting plate 37.
The electric operating device upper end cover 1 is provided with a second perspective hole 4, a manual operating hole 5, a switch 6, an indicating button 7 and a liquid crystal screen 8, the first perspective hole 40 corresponds to the second perspective hole 4, the manual operating hole 5 corresponds to a groove on the upper end face of the rotating shaft 20, and the switch 6, the indicating button 7, the liquid crystal screen 8 and the motor 9 are connected with a circuit board in the electric operating device body.
Example 2
As shown in fig. 1, the circuit breaker with the electric operating device provided by the invention comprises an upper end cover 1 of the electric operating device, a housing 2 of the electric operating device, a base 3, a second perspective hole 4, a manual operation hole 5, a switch 6, an indication button 7 and a liquid crystal screen 8 which are arranged on the upper end cover 1 of the electric operating device; the base 3 is provided with a breaker body and a switching handle 38 exposing the housing 2 of the electric operating device.
As shown in fig. 2, in order to remove the upper end cap 1 of the electric operating device, the electric operating device can be assembled and then be integrally fixed with the casing 2 of the electric operating device of the circuit breaker, and the installation is convenient.
As shown in fig. 3, the fixed upper plate 10 and the fixed lower plate 11 are fixed together by bolts, and the fixed upper plate 10 is provided with a first transparent hole 40 for viewing the display on the indication slide; the motor 9 is fixed on the fixed upper plate 10 through bolts, an electric operating mechanism 41 and a one-way transmission mechanism 43 are arranged between the fixed upper plate 10 and the fixed lower plate 11, the opening and closing indicating mechanism 45 is fixed on the electric operating device shell 2 through the mounting plate 37, the reset plate 14 is arranged on the fixed lower plate 11, and the reset plate 14 is sequentially provided with the compression spring 13 and the limiting piece 12; the fixed lower plate 11 is provided at a lower portion thereof with 4 mounting holes for fixing the electric operating device as a whole to the electric operating device housing 2.
As shown in fig. 4, the output shaft of the motor 9 and the worm 29 perform matched synchronous motion, the worm wheel 30 is meshed with the worm 29, the motor 9 rotates to drive the worm 29 to perform synchronous motion, the worm 29 drives the worm wheel 30 to perform motion, and the worm wheel 30 is fixed on the gear shaft 31; copper sleeves 32 are respectively arranged at two ends of the gear shaft 31, and the copper sleeves 32 are matched with the fixed upper plate 11; the gear shaft 31 is engaged with the gear 22 in the unidirectional motion mechanism.
As shown in fig. 5 to 6, the unidirectional transmission mechanism 43 includes a cam 24, a rotating shaft 20, and a unidirectional needle bearing 23 fixed on the rotating shaft. The copper bush 21, the gear 22, the unidirectional needle bearing 23 and the cam 24 are sequentially arranged on the rotating shaft 20, the unidirectional needle bearing 23 is arranged in the gear 22, and the copper bush 21 is arranged in the mounting holes of the fixed upper plate 10 and the fixed lower plate 11; the cam 24 is arranged at the lower part of the rotating shaft 20, is fixed on the rotating shaft 20 through the positioning plate 25, forms an integral structure with the rotating shaft 20, and is arranged at the lower side of the fixed lower plate 11; the cam 24 is provided with a positioning shaft 28, and the positioning shaft 28 is sequentially provided with a cushion block 27 and a bearing 26, and the positioning shaft and the cam 24 form an integral structure to drive the sliding block to move; because the gear 22 is internally provided with the unidirectional needle bearing 23, when the motor 9 runs, the whole structure of the rotating shaft can only move unidirectionally and cannot move reversely under the action of the motor 9.
As shown in fig. 7 to 8, the transmission mechanism comprises a sliding rod 17, a sliding block 39 and a fixed lower plate 11; the sliding block 39 consists of a rubber block 18 and a limiting plate 19; grooves are formed on two sides of the rubber block 18 and used for limiting the sliding rod 17, and a rectangular groove is formed in the center of the rubber block 18 and used for limiting the opening and closing handle 38; the whole structure of the sliding block moves along the sliding rod 17, and the movement of the sliding block drives the opening and closing handle 38 to move, so that the functions of opening and closing are realized. The slide bar 17 passes through the groove on the slide block and is fixed on the fixed lower plate 11 through countersunk bolts; one end of the spring fixing plate 15 is fixed on the fixed lower plate 11, the other end of the spring fixing plate is used for installing a first extension spring 16, the other end of the first extension spring 16 is installed on the rubber block 18, and the first extension spring 16 on the transmission mechanism plays a role in quick reset. A part of the cam 24 is in a protruding circular structure, and the positioning shaft 28 rotates in the rubber block 18 for one circle under the rotation of the cam 24, so that the opening and closing functions are realized.
As shown in fig. 9, the opening and closing indicating mechanism includes an indicating plate and a micro switch. The indication board is connected together through the fixed pin 36 by mounting panel 37 and indication slide plate 33, and the circuit breaker will drive the indication slide plate 33 in the divide-shut brake indicating mechanism and move around fixed pin 36 when realizing dividing and closing different states, micro-gap switch 34 passes through the bolt fastening on mounting panel 37, and second extension spring 35 one end is fixed on indication slide plate 33, and second extension spring 35 other end is fixed on mounting panel 37, plays the effect of resetting.
Detailed operation procedure
In the electrically operated state:
1. the output shaft of the motor is in interference fit with the worm, and after the motor 9 is electrified, the motor 9 rotates to drive the worm 29 to synchronously move along with the output shaft of the motor; the worm 29 is engaged with the worm wheel 30, and when the worm 29 rotates, the worm wheel 30 rotates.
2. The gear shaft 31 and the worm wheel 30 are of an integral structure, when the worm 29 drives the worm wheel 30 to rotate, the gear shaft 31 also rotates, the gear shaft 31 is meshed with the gear 22, the gear shaft 31 drives the gear 22 to rotate, and the gear 22 rotates to drive the rotating shaft 20 to rotate.
3. The rotation shaft 20 rotates to drive the cam 24 to rotate.
4. The bearing 26, the cushion block 27 and the positioning shaft 28 are fixed on the cam 24 together; the cam 24 rotates to drive the bearing 26, the cushion block 27 and the positioning shaft 28 to rotate along the rotating shaft 20;
5. the rubber block 18 and the limiting plate 19 are fixed together to form a sliding block 39, and when the bearing 26 on the cam 24 rotates along the rotating shaft 20, the limiting plate 19 and the rubber block 18 are driven to move along the sliding rod 17 together.
6. The rubber block 18 moves to push the opening and closing handle 38 to perform opening and closing movements, so that the opening and closing functions of the whole circuit breaker are realized.
In a manual operation state
1. When the motor does not work and manual operation is needed, the rotating shaft 20 is rotated by the hexagonal wrench in the tool, and the rotating shaft 20 rotates to drive the cam 24 to rotate. Since the one-way needle bearing 23 can move only in one direction, the one-way needle bearing 23 is mounted inside the gear 22, and the direction of the rotation shaft is opposite to that of the one-way needle bearing when operated manually, so that the gear 22 does not rotate with the rotation of the rotation shaft 20.
2. The bearing 26, the cushion block 27 and the positioning shaft 28 are fixed on the cam 24 together; the cam 24 rotates to drive the bearing 26, the cushion block 27 and the positioning shaft 28 to rotate together along the rotating shaft 20.
3. The rubber block 18 and the limiting plate 19 are fixed together to form an integral structure, and when the bearing 26 on the cam 24 rotates along the rotating shaft 20, the limiting plate 19 and the rubber block 18 are driven to move along the sliding rod 17 together.
4. The rubber block 18 moves to push the opening and closing handle 38 to perform opening and closing movements, so that the opening and closing functions of the whole circuit breaker are realized.
Claims (4)
1. The utility model provides a circuit breaker with electric operating device, includes circuit breaker body and electric operating device, circuit breaker body upper surface sets up divide-shut brake handle (38), its characterized in that: the electric operation device comprises an electric operation mechanism (41), an intermediate transmission mechanism (42), a unidirectional transmission mechanism (43), a handle pushing mechanism (44), an opening and closing indicating mechanism (45), a fixed upper plate (10) and a fixed lower plate (11);
the fixed lower plate (11) is fixedly connected with the upper surface of the breaker body, the fixed upper plate (10) is fixedly connected with the upper surface of the fixed lower plate (11), and the fixed upper plate (10) is provided with a first perspective hole (40); the electric operating mechanism (41) comprises a motor (9), the motor (9) is fixedly connected with the fixed upper plate (10), and the output end of the motor (9) is contacted with the worm (29);
the middle transmission mechanism (42) is positioned between the fixed upper plate (10) and the fixed lower plate (11), the middle transmission mechanism (42) comprises a turbine (30) and a gear shaft (31), the gear shaft (31) is fixedly arranged on the fixed lower plate (11), a through hole with an inner gear is formed in the center of the turbine (30) along the axial direction, the turbine (30) is sleeved on the gear shaft (31) and meshed with the gear shaft, and the turbine (30) is meshed with the worm (29);
the unidirectional transmission mechanism (43) comprises a rotating shaft (20), a gear (22), a unidirectional needle bearing (23) and a cam (24), wherein the rotating shaft (20) penetrates through the fixed upper plate (10) and the fixed lower plate (11), a shaft sleeve (21) is arranged at the joint of the rotating shaft (20) and the fixed upper plate (10) and the fixed lower plate (11), the gear (22) is positioned between the fixed upper plate (10) and the fixed lower plate (11), the unidirectional needle bearing (23) is sleeved between the gear (22) and the rotating shaft (20), the cam (24) is fixedly arranged at one end of the rotating shaft (20), the cam (24) is positioned below the fixed lower plate (11), a positioning shaft (28) is arranged on the cam (24), the positioning shaft (28) is connected with the cam (24) through a bearing (26), and the gear shaft (31) is meshed with the gear (22);
the handle pushing mechanism (44) comprises a sliding rod (17) and a sliding block (39) axially moving along the sliding rod (17), two ends of the sliding rod (17) are fixedly connected with the fixed lower plate (11), the sliding block (39) is provided with a groove, and the positioning shaft (28) is positioned in the groove; the opening and closing indicating mechanism (45) comprises an indicating slide plate (33) and an installing plate (37), the indicating slide plate (33) is in non-fixed connection with the installing plate (37) through a locating pin (36), the installing plate (37) is fixedly connected with the fixed lower plate (11), the upper end of the indicating slide plate (33) is positioned below the first perspective hole (40), and the other end of the indicating slide plate (33) is in contact with a moving contact of the circuit breaker body;
the handle pushing mechanism (44) further comprises a first stretching spring (16), one end of the first stretching spring (16) is connected with the sliding block (39), the other end of the first stretching spring (16) is connected with the spring fixing plate (15), and the spring fixing plate (15) is fixed on the fixed lower plate (11) through bolts;
the opening and closing indicating mechanism (45) further comprises a micro switch (34) and a second extension spring (35), the micro switch (34) is fixed on the mounting plate (37) through a bolt, one end of the second extension spring (35) is connected with the indication slide plate (33), and the other end of the second extension spring (35) is connected with the mounting plate (37).
2. The circuit breaker with electrically operated device of claim 1, wherein: the upper end face of the rotating shaft (20) is provided with a groove.
3. The circuit breaker with electrically operated device of claim 1, wherein: the electric operating mechanism (41) further comprises a tripping device, the tripping device comprises a reset plate (14), a compression spring (13) and a limiting plate (12), the reset plate (14) is fixedly connected with the fixed lower plate (11), one end of the reset plate (14) protrudes out of an upper end cover (1) of the electric operating mechanism (41), the other end of the reset plate (14) is connected with a tripping rod in the circuit breaker body, the compression spring (13) is sleeved on the reset plate (14), the limiting plate (12) is fixed on one end of the reset plate (14), and the compression spring (13) is located between the limiting plate (12) and the fixed lower plate (11).
4. A circuit breaker with electrically operated device as claimed in claim 2, wherein: the electric operation device is characterized in that a second perspective hole (4), a manual operation hole (5), a switch (6), an indication button (7) and a liquid crystal screen (8) are arranged on the upper end cover (1) of the electric operation device, the first perspective hole (40) corresponds to the second perspective hole (4), the manual operation hole (5) corresponds to a groove on the upper end face of the rotating shaft (20), and the switch (6), the indication button (7), the liquid crystal screen (8) and the motor (9) are connected with a circuit board in the electric operation device body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811443479.0A CN109346388B (en) | 2018-11-29 | 2018-11-29 | Circuit breaker with electric operating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811443479.0A CN109346388B (en) | 2018-11-29 | 2018-11-29 | Circuit breaker with electric operating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109346388A CN109346388A (en) | 2019-02-15 |
| CN109346388B true CN109346388B (en) | 2023-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811443479.0A Active CN109346388B (en) | 2018-11-29 | 2018-11-29 | Circuit breaker with electric operating device |
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| CN (1) | CN109346388B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110310870A (en) * | 2019-07-26 | 2019-10-08 | 杭州乾龙电器有限公司 | A kind of intelligent moulded case circuit breaker |
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| WO2016169086A1 (en) * | 2015-04-24 | 2016-10-27 | 苏州未来电器股份有限公司 | Electric operating mechanism used for micro-breaker |
| CN206657783U (en) * | 2017-04-25 | 2017-11-21 | 浙江中富电气有限公司 | A kind of automatic opening-closing transmission mechanism and its a kind of breaker |
| WO2018094931A1 (en) * | 2016-11-22 | 2018-05-31 | 上海思源高压开关有限公司 | Spring operation mechanism for use with high-voltage circuit breakers |
| CN209544272U (en) * | 2018-11-29 | 2019-10-25 | 沈阳翼源盟电器有限公司 | A kind of breaker with electrically operated device |
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2018
- 2018-11-29 CN CN201811443479.0A patent/CN109346388B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201796838U (en) * | 2010-08-13 | 2011-04-13 | 乐清市公认电气有限公司 | Manual and electric integrated intelligent circuit breaker |
| CN203398051U (en) * | 2013-04-18 | 2014-01-15 | 丁云广 | Manual or electric closing device of residual-current circuit breaker |
| WO2016169086A1 (en) * | 2015-04-24 | 2016-10-27 | 苏州未来电器股份有限公司 | Electric operating mechanism used for micro-breaker |
| WO2018094931A1 (en) * | 2016-11-22 | 2018-05-31 | 上海思源高压开关有限公司 | Spring operation mechanism for use with high-voltage circuit breakers |
| CN206657783U (en) * | 2017-04-25 | 2017-11-21 | 浙江中富电气有限公司 | A kind of automatic opening-closing transmission mechanism and its a kind of breaker |
| CN209544272U (en) * | 2018-11-29 | 2019-10-25 | 沈阳翼源盟电器有限公司 | A kind of breaker with electrically operated device |
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| CN109346388A (en) | 2019-02-15 |
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