CN115763175A - Tripping device for switch cabinet circuit breaker - Google Patents
Tripping device for switch cabinet circuit breaker Download PDFInfo
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- CN115763175A CN115763175A CN202211368456.4A CN202211368456A CN115763175A CN 115763175 A CN115763175 A CN 115763175A CN 202211368456 A CN202211368456 A CN 202211368456A CN 115763175 A CN115763175 A CN 115763175A
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- circuit breaker
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- rack
- trip unit
- breaker
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- 239000002184 metal Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 12
- 230000006698 induction Effects 0.000 claims description 11
- 239000004020 conductor Substances 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 230000005611 electricity Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000002337 anti-port Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
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Abstract
The invention discloses a tripping device for a switch cabinet circuit breaker, belongs to the technical field of switch cabinet circuit breakers, and solves the technical problem that time and labor are wasted when a circuit is actively disconnected. It is including fixed setting at the inside drive case of circuit breaker casing and fixed setting inside and being located at the circuit breaker casing the electrically controlled device of drive case side, the fixed motor that is equipped with in inside of drive case, the motor with the electrically controlled device electricity is connected, and the inside sliding connection of drive case has one end to extend to the outside rack of drive case, the fixed gear that is equipped with on the output shaft of motor, just the gear with the rack meshes mutually. The tripping device further comprises an L-shaped driving rod which is rotatably connected inside the shell of the circuit breaker, the left end of the driving rod is fixedly connected with a stress plate corresponding to the lower end of the rack, and the right end of the driving rod is fixedly connected with a trigger rod for triggering the automatic tripping of the brake head of the circuit breaker.
Description
Technical Field
The invention belongs to the technical field of switch cabinet breakers, and particularly relates to a tripping device for a switch cabinet breaker.
Background
The high-voltage switch cabinet is used for power generation, power transmission, power distribution, electric energy conversion and consumption of an electric power system and plays roles of on-off, control or protection and the like. The high-voltage switch cabinet is an electrical appliance product with the voltage grade of 3.6 kV-550 kV, a high-voltage isolating switch, a grounding switch, a high-voltage load switch, a high-voltage automatic reclosing and sectionalizing device, a high-voltage operating mechanism, a high-voltage explosion-proof power distribution device, a high-voltage switch cabinet and the like are arranged in the switch cabinet, a circuit breaker needs to be installed in order to ensure safety, and the circuit breaker needs to be tripped to break a circuit when an electrical appliance accident happens, so that the safety of the switch cabinet is ensured. The general conduction time of current circuit breaker trip gear is longer, if do not take place overload or short circuit automatic tripping, the circuit disconnection of other reasons all needs artifical manual promotion cubical switchboard circuit breaker's brake head, and the manual disconnection that carries out the circuit like this, it is very inconvenient to operate, needs operation personnel's the race back and forth, and the waste time is more, has certain potential safety hazard simultaneously.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a tripping device for a switch cabinet circuit breaker, which solves the technical problem of time and labor waste when a circuit is actively disconnected.
The purpose of the invention is realized as follows: a tripping device for a switch cabinet circuit breaker comprises a driving box fixedly arranged in a circuit breaker shell and an electric control device fixedly arranged in the circuit breaker shell and positioned at the side edge of the driving box, wherein a motor is fixedly arranged in the driving box, the motor is electrically connected with the electric control device, a rack with one end extending to the outside of the driving box is slidably connected in the driving box, a gear is fixedly arranged on an output shaft of the motor, and the gear is meshed with the rack; the tripping device further comprises an L-shaped driving rod which is rotatably connected inside the breaker shell, the left end of the driving rod is fixedly connected with a stress plate corresponding to the lower end of the rack, and the right end of the driving rod is fixedly connected with a trigger rod used for triggering automatic tripping of the breaker head.
Furthermore, a single chip microcomputer mainboard is arranged inside the electric control device, a power supply for supplying power to the single chip microcomputer mainboard is arranged inside the electric control device, and a first Bluetooth module is arranged on the single chip microcomputer mainboard; an infrared induction module is arranged on the outer wall of the breaker shell and on the side edge of the position of the breaker head after closing, and the infrared induction module is electrically connected with the singlechip mainboard; the electric control device further comprises a remote controller, and a second Bluetooth module is arranged on the remote controller.
Furthermore, one end of the rack, which is positioned outside the driving box, is fixedly provided with a sphere, and the upper surface of the stress plate is provided with a receiving notch corresponding to the sphere.
Furthermore, an automatic tripping device is arranged inside the breaker shell and comprises an arc-shaped turntable, and a moving contact is fixedly connected to the arc-shaped turntable; an incoming line terminal and an outgoing line terminal are further fixedly arranged inside the breaker shell, and the incoming line terminal is electrically connected with a conductor sheet corresponding to the moving contact.
Further, an arc extinguishing device is further arranged inside the breaker shell, a driving piece is further rotatably arranged inside the breaker shell, a first transverse plate and a second transverse plate are fixedly arranged inside the breaker shell, a gap is formed between the two transverse plates, a first fixing plate and a second fixing plate are fixedly arranged on the side wall of the first transverse plate, an electromagnetic coil is fixedly arranged between the first fixing plate and the second fixing plate, and the right end of the electromagnetic coil is electrically connected with the moving contact through a wire; the central positions of the first fixing plate and the second fixing plate are both provided with through holes.
Furthermore, the lower end of the driving sheet is fixedly connected with an inserting rod, the movable contact is provided with an inserting hole, one end of the inserting rod, far away from the driving sheet, extends from left to right to sequentially penetrate through the through hole in the first fixing plate, the through hole in the second fixing plate and the inserting hole and extends to the right of the inserting hole, and the right end of the inserting rod is fixedly provided with a grid blocking ball; the diameter of the check ball is larger than that of the jack.
Furthermore, an L-shaped clamping plate is clamped in a gap between the first transverse plate and the second transverse plate, a metal sheet is connected onto the clamping plate, the upper end of the metal sheet is electrically connected with the left end of the electromagnetic coil through a wire, and the lower end of the metal sheet is electrically connected with the wire outlet terminal through a wire.
Further, the metal sheet is composed of a double-layer structure, and comprises a left material plate and a right material plate, wherein the expansion coefficient of the left material plate is higher than that of the right material plate.
The invention has the beneficial effects that: the electric control device and the driving box are arranged inside the shell of the circuit breaker, the electric control device is used for controlling the motor inside the driving box to rotate, the motor rotates to drive the rack to move, the lower end of the rack in the process of moving the rack is extruded on the upper surface of the stress plate, the stress plate is pressed to move downwards, the motion of the stress plate drives the driving rod to rotate, the motion of the driving rod drives the trigger rod to impact the connecting assembly of the brake head of the circuit breaker to enable the circuit breaker to automatically trip, and the circuit is disconnected. The electric control device is controlled by the remote controller, so that automatic tripping of the circuit breaker can be controlled remotely, manual approach to a brake head of the circuit breaker by a switch cabinet is not needed, running time of operating personnel is saved, physical strength and time are saved, and the operation is more convenient and faster; meanwhile, potential safety hazards are reduced.
Drawings
Fig. 1 is a schematic view of the internal structure of the circuit breaker housing of the present invention;
FIG. 2 is an enlarged view of A of FIG. 1 in accordance with the present invention;
FIG. 3 is a schematic view of the internal structure of the drive case of the present invention;
fig. 4 is a front view of the driving rod of the present invention;
FIG. 5 is a schematic top view of the drive rod of the present invention;
FIG. 6 is a schematic bottom view of the drive rod of the present invention;
FIG. 7 is a schematic diagram of the solenoid coil of the present invention in a front view;
fig. 8 is a schematic top view of the electromagnetic coil of the present invention.
In the figure: 1. the device comprises a driving box 2, an electric control device 3, a rack 4, a motor 5, a driving rod 6, a stress plate 7, a trigger bar 8, an infrared induction module 9, a sphere 10, a receiving notch 11, an arc-shaped rotating disc 12, a moving contact 13, a wire inlet terminal 14, a wire outlet terminal 15, a conductor sheet 16, an arc extinguishing device 17, a driving sheet 18, a first transverse plate 19, a second transverse plate 20, a first fixing plate 21, a second fixing plate 22, an electromagnetic coil 23, an inserted bar 24, a grid blocking sphere 25, a clamping plate 26, a metal sheet 27, a breaker shell 28 and a brake head.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, wherein all the directional terms in the present invention, such as up, down, front, back, left and right, are the directional terms with reference to fig. 1, and all the directional terms do not limit the present invention, but are only used for the purpose of more clearly explaining and explaining the present invention.
Example 1
As shown in fig. 1-8, the present embodiment discloses a trip device for a switch cabinet circuit breaker, which includes a driving box 1 fixedly disposed inside a circuit breaker housing 27 and an electric control device 2 fixedly disposed inside the circuit breaker housing 27 and located at a side of the driving box 1, wherein the electric control device 2 includes a remote controller connected with bluetooth thereof. The inside of drive case 1 is fixed and is equipped with motor 4, and motor 4 is connected with electrically controlled device 2 electricity, and the inside sliding connection of drive case 1 has one end to extend to the outside rack 3 of drive case 1, and the fixed gear that is equipped with on motor 4's the output shaft, and the gear meshes with rack 3 mutually. The tripping device further comprises an L-shaped driving rod 5 which is rotatably connected inside the breaker shell 27, the left end of the driving rod 5 is fixedly connected with a stress plate 6 corresponding to the lower end of the rack 3, and the right end of the driving rod 5 is fixedly connected with a trigger rod 7 for triggering the breaker head 28 of the breaker to automatically trip.
This embodiment sets up electrically controlled device 2 and drive case 1 through the inside at circuit breaker casing 27, utilize the inside motor 4 of electrically controlled device 2 control drive case 1 to rotate, motor 4 rotates and drives rack 3 and remove, the lower extreme extrusion of the in-process rack 3 that rack 3 removed is at the upper surface of atress board 6, atress board 6 receives pressure downstream, the motion of atress board 6 drives actuating lever 5 and rotates, the motion of actuating lever 5 drives trigger bar 7 and strikes the coupling assembling of circuit breaker brake head 28 and makes circuit breaker automatic tripping, open circuit. The electric control device 2 is controlled by the remote controller, can remotely control the automatic tripping of the circuit breaker, does not need to manually approach the brake head 28 of the manually-pushed circuit breaker beside the switch cabinet, saves the running time of operating personnel, saves physical power, saves time, and is more convenient and faster to operate. Meanwhile, potential safety hazards are reduced.
Example 2
As shown in fig. 1-8, the present embodiment discloses a trip device for a switch cabinet circuit breaker, which includes a driving box 1 fixedly disposed inside a circuit breaker housing 27 and an electric control device 2 fixedly disposed inside the circuit breaker housing 27 and located at a side of the driving box 1, wherein the electric control device 2 includes a remote controller connected with bluetooth thereof. The inside of drive case 1 is fixed and is equipped with motor 4, and motor 4 is connected with electrically controlled device 2 electricity, and the inside sliding connection of drive case 1 has one end to extend to the outside rack 3 of drive case 1, and the fixed gear that is equipped with on motor 4's the output shaft, and the gear meshes with rack 3 mutually. The tripping device further comprises an L-shaped driving rod 5 which is rotatably connected inside the breaker shell 27, the left end of the driving rod 5 is fixedly connected with a stress plate 6 corresponding to the lower end of the rack 3, and the right end of the driving rod 5 is fixedly connected with a trigger rod 7 for triggering the breaker head 28 of the breaker to automatically trip.
In order to achieve the replacement effect, a single chip microcomputer mainboard is arranged inside the electric control device 2, a power supply for supplying power to the single chip microcomputer mainboard is arranged inside the electric control device 2, and a first Bluetooth module is arranged on the single chip microcomputer mainboard; the remote controller is provided with a second Bluetooth module; the first Bluetooth module and the second Bluetooth module are both of a type MS44SF11 Bluetooth low energy module. An infrared induction module 8 is arranged on the outer wall of the breaker shell 27 and on the side edge of the position of the breaker head 28 after closing, the infrared induction module 8 is electrically connected with the single chip microcomputer mainboard, and the infrared induction module 8 adopts an infrared photoelectric sensor with the model number of HTPA8X8DR1L2.1. During the use, the remote controller sends the instruction of starter motor 4 through second bluetooth module and the first bluetooth module wireless connection on the singlechip mainboard, sends the instruction of start-up to motor 4 after the singlechip mainboard receives the instruction, and motor 4 begins to rotate. After motor 4 rotates and makes the circuit breaker trip, the position that is close to infrared induction module 8 in figure 1 can be followed to the floodgate head 28 and jump to the position as in the figure, after the position of right-hand member jumps to the position of left end in the picture from the floodgate head 28, infrared induction module 8 senses the floodgate head 28 and disappears, infrared induction module 8 sends a signal to the singlechip mainboard this moment, after the singlechip mainboard receives this signal, send the instruction that makes motor 4 antiport same stroke, and then reset rack 3 back to the inside of drive case 1, and then make actuating lever 5 reset. A return spring (not shown in the figure) is connected to the driving rod 5, the spring is stretched after the driving rod 5 is driven to rotate by the rack 3, and the driving rod 5 automatically resets under the action of the return spring after the rack 3 resets.
For the replacement effect, one end of the rack 3, which is positioned outside the driving box 1, is fixedly provided with a ball 9, and the upper surface of the stress plate 6 is provided with a receiving notch 10 corresponding to the ball 9. During the use, rack 3 moves down and drives spheroid 9 downstream, and spheroid 9 falls into the inside that connects to notch 10 downwards, connects to connect the effect that should notch 10 to be used for accomodating spheroid 9, and connects to slide fit between notch 10 and the spheroid 9's the outer wall.
For the effect of replacement, an automatic tripping device is arranged inside the circuit breaker casing 27, and the automatic tripping device comprises an arc-shaped rotating disc 11, and a movable contact 12 is fixedly connected to the arc-shaped rotating disc 11. A line inlet terminal 13 and a line outlet terminal 14 are also fixedly arranged in the breaker housing 27, and a conductor piece 15 corresponding to the movable contact 12 is electrically connected to the line inlet terminal 13.
For the replacement effect, an arc extinguishing device 16 is further disposed inside the circuit breaker housing 27, a driving plate 17 is further rotatably disposed inside the circuit breaker housing 27, a first transverse plate 18 and a second transverse plate 19 are fixedly disposed inside the circuit breaker housing 27, a gap is formed between the two transverse plates, a first fixing plate 20 and a second fixing plate 21 are fixedly disposed on the side wall of the first transverse plate 18, an electromagnetic coil 22 is fixedly disposed between the first fixing plate 20 and the second fixing plate 21, and the right end of the electromagnetic coil 22 is electrically connected to the movable contact 12 through a conducting wire. The center positions of the first fixing plate 20 and the second fixing plate 21 are both provided with through holes. The lower extreme fixedly connected with inserted bar 23 of driving plate 17, the jack has been seted up on the moving contact 12, and the one end that the driving plate 17 was kept away from to the inserted bar 23 extends from the left hand right side and runs through-hole on the first fixed plate 20, through-hole and jack on the second fixed plate 21 in proper order to extend to the right-hand side of jack, the fixed check ball 24 that is equipped with of right-hand member of inserted bar 23. The diameter of the check ball 24 is larger than the diameter of the receptacle. The solenoid coil 22 and the driving plate 17 are arranged so that the circuit breaker automatically trips when the line is short circuited.
In order to achieve the replacement effect, an L-shaped clamping plate 25 is clamped in a gap between the first transverse plate 18 and the second transverse plate 19, a metal sheet 26 is connected to the clamping plate 25, the upper end of the metal sheet 26 is electrically connected with the left end of the electromagnetic coil 22 through a wire, and the lower end of the metal sheet 26 is electrically connected with the outlet terminal 14 through a wire. The metal sheet 26 is composed of a double-layer structure including a left material plate and a right material plate, the expansion coefficient of the left material plate being higher than that of the right material plate. The setting effect of sheetmetal 26 is when crossing the line and carrying, and sheetmetal 26 can generate heat, because the expansion coefficient of sheetmetal 26 left and right both sides is different, can take place crooked after sheetmetal 26 generates heat, and the sheetmetal 26 is crooked to touch the action piece 17 and rotates, and the action piece 17 rotates and makes circuit breaker automatic tripping.
This embodiment is through setting up electrically controlled device 2 and drive case 1 in circuit breaker casing 27's inside, utilize the inside motor 4 of electrically controlled device 2 control drive case 1 to rotate, motor 4 rotates and drives rack 3 and remove, the lower extreme extrusion of the in-process rack 3 that rack 3 removed is at the upper surface of atress board 6, atress board 6 receives pressure downstream, the motion of atress board 6 drives actuating lever 5 and rotates, the motion of actuating lever 5 drives trigger bar 7 and strikes the coupling assembling of circuit breaker lock head 28 and makes circuit breaker automatic tripping, open circuit. The electric control device 2 is controlled by the remote controller, can remotely control the automatic tripping of the circuit breaker, does not need to manually approach the brake head 28 of the manually-pushed circuit breaker beside the switch cabinet, saves the running time of operating personnel, saves physical power, saves time, and is more convenient and faster to operate. Meanwhile, potential safety hazards are reduced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and its concept within the technical scope of the present invention.
Claims (10)
1. The utility model provides a trip gear for cubical switchboard circuit breaker which characterized in that: the circuit breaker driving device comprises a driving box (1) fixedly arranged in a circuit breaker shell (27) and an electric control device (2) fixedly arranged in the circuit breaker shell (27) and located on the side edge of the driving box (1), wherein a motor (4) is fixedly arranged in the driving box (1), the motor (4) is electrically connected with the electric control device (2), a rack (3) with one end extending to the outside of the driving box (1) is connected in the driving box (1) in a sliding mode, a gear is fixedly arranged on an output shaft of the motor (4), and the gear is meshed with the rack (3); tripping device is still including rotating "L" shape actuating lever (5) of connection inside circuit breaker casing (27), the left end fixedly connected with of actuating lever (5) with the corresponding atress board (6) of lower extreme of rack (3), the right-hand member fixedly connected with of actuating lever (5) are used for triggering trigger bar (7) of circuit breaker brake head (28) automatic tripping.
2. The trip unit for a switchgear circuit breaker of claim 1, wherein: a singlechip mainboard is arranged inside the electric control device (2), a power supply for supplying power to the singlechip mainboard is arranged inside the electric control device (2), and a first Bluetooth module is arranged on the singlechip mainboard; the infrared induction module (8) is arranged on the outer wall of the breaker shell (27) and on the position side edge of the breaker head (28) after closing, and the infrared induction module (8) is electrically connected with the singlechip mainboard.
3. The trip unit for a switchgear circuit breaker of claim 2, wherein: the electric control device (2) further comprises a remote controller, and a second Bluetooth module is arranged on the remote controller.
4. The trip unit for a switchgear circuit breaker of claim 1, wherein: the rack (3) is fixedly provided with a ball body (9) at one end outside the driving box (1), and the upper surface of the stress plate (6) is provided with a corresponding notch (10) corresponding to the ball body (9).
5. The trip unit for a switchgear circuit breaker of claim 1, wherein: an automatic tripping device is arranged in the circuit breaker shell (27), the automatic tripping device comprises an arc-shaped turntable (11), and a moving contact (12) is fixedly connected to the arc-shaped turntable (11); an incoming line terminal (13) and an outgoing line terminal (14) are further fixedly arranged inside the breaker shell (27), and the incoming line terminal (13) is electrically connected with a conductor sheet (15) corresponding to the moving contact (12).
6. The trip unit for a switchgear circuit breaker of claim 5, wherein: an arc extinguishing device (16) is further arranged inside the breaker shell (27), a driving sheet (17) is further rotatably arranged inside the breaker shell (27), a first transverse plate (18) and a second transverse plate (19) are fixedly arranged inside the breaker shell (27), a gap is formed between the two transverse plates, a first fixing plate (20) and a second fixing plate (21) are fixedly arranged on the side wall of the first transverse plate (18), an electromagnetic coil (22) is fixedly arranged between the first fixing plate (20) and the second fixing plate (21), and the right end of the electromagnetic coil (22) is electrically connected with the movable contact (12) through a wire; through holes are formed in the center positions of the first fixing plate (20) and the second fixing plate (21).
7. The trip unit for a switchgear circuit breaker of claim 6, wherein: the lower extreme fixedly connected with inserted bar (23) of driving piece (17), the jack has been seted up on moving contact (12), the one end that driving piece (17) were kept away from in inserted bar (23) extends from the left hand right side and runs through-hole on first fixed plate (20), through-hole and jack on second fixed plate (21) in proper order to extend to the right-hand of jack, the fixed check ball (24) that are equipped with of right-hand member of inserted bar (23).
8. The trip unit for a switchgear circuit breaker of claim 6, wherein: an L-shaped clamping plate (25) is clamped in a gap between the first transverse plate (18) and the second transverse plate (19), a metal sheet (26) is connected to the clamping plate (25), the upper end of the metal sheet (26) is electrically connected with the left end of the electromagnetic coil (22) through a wire, and the lower end of the metal sheet (26) is electrically connected with the wire outlet terminal (14) through a wire.
9. The trip unit for a switchgear circuit breaker of claim 8, wherein: the metal sheet (26) is composed of a two-layer structure comprising a left material sheet and a right material sheet, the left material sheet having a higher coefficient of expansion than the right material sheet.
10. The trip unit for a switchgear circuit breaker of claim 7, wherein: the diameter of the stop ball (24) is larger than the diameter of the insertion hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211368456.4A CN115763175A (en) | 2022-11-03 | 2022-11-03 | Tripping device for switch cabinet circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211368456.4A CN115763175A (en) | 2022-11-03 | 2022-11-03 | Tripping device for switch cabinet circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115763175A true CN115763175A (en) | 2023-03-07 |
Family
ID=85357532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211368456.4A Withdrawn CN115763175A (en) | 2022-11-03 | 2022-11-03 | Tripping device for switch cabinet circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115763175A (en) |
-
2022
- 2022-11-03 CN CN202211368456.4A patent/CN115763175A/en not_active Withdrawn
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20230307 |