CN221596352U - Quick-release circuit breaker mechanism - Google Patents
Quick-release circuit breaker mechanism Download PDFInfo
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- CN221596352U CN221596352U CN202420053170.5U CN202420053170U CN221596352U CN 221596352 U CN221596352 U CN 221596352U CN 202420053170 U CN202420053170 U CN 202420053170U CN 221596352 U CN221596352 U CN 221596352U
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- fixing frame
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- circuit breaker
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- 230000007246 mechanism Effects 0.000 title claims abstract description 24
- 230000000712 assembly Effects 0.000 claims description 7
- 238000000429 assembly Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims 2
- 230000009471 action Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a breaker mechanism capable of tripping rapidly, which relates to the technical field of breakers and comprises a device body and a tripping mechanism, wherein the tripping mechanism comprises a fixing frame, a knife switch is arranged on the inner side of the top of the fixing frame, a supporting plate is arranged on the inner side of the bottom of the knife switch, moving contacts are arranged on both sides and the middle position of the bottom of the fixing frame, stop pieces are arranged on the outer walls of both ends of the fixing frame, a rotor is arranged on the outer wall of one end of the fixing frame, a torsion spring is arranged between the outer side of the rotor and the adjacent moving contact, and a lock catch is arranged on the outer wall of one side of the fixing frame. According to the utility model, the moving contact breaks through the elastic action of the torsion spring through the electric repulsive force to continue to rotate anticlockwise, so that the rotor can be pushed to rotate anticlockwise, the rotor can strike the lock catch to separate the lock catch from the supporting plate, the circuit breaker can realize tripping before the short-circuit energy reaches a peak value under the short-circuit condition, and the damage of the short-circuit energy to the circuit breaker and the circuit can be avoided.
Description
Technical Field
The utility model relates to the technical field of circuit breakers, in particular to a quick-release circuit breaker mechanism.
Background
A circuit breaker refers to a switching device capable of closing, carrying and opening a current under normal circuit conditions and closing, carrying and opening a current under abnormal circuit conditions within a prescribed time. The circuit breaker is classified into a high voltage circuit breaker and a low voltage circuit breaker according to its use range.
The prior art has the following defects: the existing circuit breaker works as an electromagnetic coil to be attracted, a traction rod is driven to rotate, the traction rod pushes a lock catch again, the lock catch rotates to release the lock catch, a circuit breaker mechanism drives a moving contact to break a brake again, the moving contact is likely to rebound in the process, the circuit breaker is long in opening time, arc burning time is prolonged, and short-circuit energy is increased, so that breaking of the circuit breaker is affected.
The above information disclosed in the background section is only for enhancement of understanding of the background of the disclosure and therefore it may include information that does not form the prior art that is already known to a person of ordinary skill in the art.
Disclosure of utility model
The utility model aims to provide a quick-release circuit breaker mechanism, which can drive a moving contact to break through the elastic action of a torsion spring to rotate anticlockwise through electric repulsive force, so that a rotor can be pushed to rotate anticlockwise, the rotor can strike a lock catch, the lock catch can be separated from a supporting plate, and a knife switch can be quickly closed, so that the circuit breaker can realize release before the short-circuit energy reaches a peak value under the condition of short-circuit, the circuit breaker and a circuit can be better protected, the damage of the short-circuit energy to the circuit breaker and the circuit can be avoided, and the service lives of the circuit breaker and the circuit can be prolonged, so that the defects in the technology are overcome.
In order to achieve the above object, the present utility model provides the following technical solutions: the utility model provides a quick circuit breaker mechanism that trips, includes the device body, still includes:
The tripping mechanism is arranged in the device body and used for tripping operation of the circuit breaker;
The device comprises a device body and is characterized in that the device body comprises a fixed shell, a cover plate is arranged at the top of the fixed shell, a connecting bolt is arranged between the fixed shell and the cover plate, an arc extinguishing assembly is fixedly arranged on one side of the inside of the fixed shell, binding posts are arranged on the outer walls of the two ends of the fixed shell, and a switch is movably inserted into the inner wall of the top of the cover plate;
The tripping mechanism comprises a fixing frame and a pressing plate, wherein the fixing frame is fixedly arranged at the bottom of the inner side of the fixed shell, a knife switch is rotatably arranged at the inner side of the top of the fixing frame, a supporting plate is rotatably arranged at the inner side of the bottom of the knife switch, moving contacts are rotatably arranged at both sides and the middle position of the bottom of the fixing frame, fixed contacts are arranged at the bottoms of the three moving contacts, the pressing plate is rotatably arranged at the inner wall of one side of the fixed shell, and the top of the pressing plate is movably connected with the bottom of the switch;
The fixed mounting structure is characterized in that the stop pieces are fixedly mounted on the outer walls of the two ends of the fixing frame, a rotating shaft is arranged on the outer wall of one end of the fixing frame, a torsion spring is arranged between the outer side of the rotating shaft and the adjacent moving contact, a rotor is fixedly sleeved on the outer side of the rotating shaft, the rotor is movably connected with the top of the adjacent stop piece, a mounting rod is rotatably mounted on the outer wall of one side of the fixing frame, a lock catch is fixedly sleeved on the outer side of the mounting rod, one side, close to the fixing frame, of the lock catch is movably connected with the supporting plate, and one side, far away from the fixing frame, of the lock catch is movably connected with the bottom of the pressing plate.
Preferably, the device body comprises three adjusting bolts, the three adjusting bolts are inserted into the inner wall of one side of the cover plate in an equidistant threaded manner, and one side, away from the cover plate, of the adjusting bolts is in abutting connection with the outer wall of the pressing plate.
Preferably, the number of the arc extinguishing assemblies is the same as that of the moving contacts, and the three arc extinguishing assemblies and the three moving contacts are all arranged at equal intervals.
Preferably, one end of the rotating shaft is rotationally connected with the outer wall of the fixing frame, the other end of the rotating shaft is rotationally connected with the inner wall of the fixed shell, and the rotating shaft is movably sleeved on the inner side of the stop piece at the same end.
Preferably, the bottom of one end of the rotor is movably connected with the top of the adjacent moving contact, and the outer wall of the other end of the rotor is movably connected with the outer wall of one side of the lock catch.
In the technical scheme, the utility model has the technical effects and advantages that:
Can drive the elasticity effect that the movable contact breaks through the torsional spring through electronic repulsion and continue anticlockwise rotation, and then can promote the rotor and carry out anticlockwise rotation for the rotor can strike the hasp, makes the hasp can separate with the backup pad, and then makes the knife switch close that can be quick, makes the circuit breaker can realize the tripping before short circuit energy reaches the peak value under the short circuit condition, can be better protect circuit breaker and circuit, can avoid short circuit energy to cause the damage to circuit breaker and circuit, can prolong the life of circuit breaker and circuit.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is an exploded view of the three-dimensional structure of the device body of the present utility model.
Fig. 3 is an exploded view of a three-dimensional structure of the trip mechanism of the present utility model.
Reference numerals illustrate:
1. A device body; 101. a fixed housing; 102. a cover plate; 103. a connecting bolt; 104. an arc extinguishing assembly; 105. binding posts; 106. an adjusting bolt; 107. a switch;
2. a trip mechanism; 201. a fixing frame; 202. a knife switch; 203. a support plate; 204. a stationary contact; 205. a moving contact; 206. a stopper; 207. a rotating shaft; 208. a torsion spring; 209. a rotor; 210. a mounting rod; 211. locking; 212. and (5) pressing plates.
Detailed Description
The utility model provides a quick-release circuit breaker mechanism as shown in fig. 1, which comprises a device body 1 and further comprises:
the tripping mechanism 2 is arranged inside the device body 1 and is used for tripping operation of the circuit breaker.
For convenient tripping device 2 installs and assembles and dismantles device body 1, as shown in fig. 2, device body 1 includes fixed shell 101, the top of fixed shell 101 is provided with apron 102, be provided with connecting bolt 103 between fixed shell 101 and the apron 102, inside one side fixed mounting of fixed shell 101 has arc extinguishing component 104, the both ends outer wall of fixed shell 101 all is provided with terminal 105, the activity of the top inner wall of apron 102 is pegged graft and is had switch 107, can connect and fix apron 102 and fixed shell 101 through connecting bolt 103, make device body 1 can be convenient assemble and dismantle, can install and fix tripping device 2 through fixed shell 101.
In order to realize the quick tripping operation of the circuit breaker, as shown in fig. 2-3, the tripping mechanism 2 comprises a fixing frame 201 and a pressing plate 212, the fixing frame 201 is fixedly installed at the bottom of the inner side of the fixing housing 101, a knife switch 202 is rotatably installed at the inner side of the top of the fixing frame 201, a supporting plate 203 is rotatably installed at the inner side of the bottom of the fixing frame 201, moving contacts 205 are rotatably installed at the two sides and the middle position of the bottom of the fixing frame 201, fixed contacts 204 are arranged at the bottoms of three moving contacts 205, the pressing plate 212 is rotatably installed at the inner wall of one side of the fixing housing 101, the top of the pressing plate 212 is movably connected with the bottom of the switch 107, stop members 206 are fixedly installed at the outer walls of two ends of the fixing frame 201, a rotating shaft 207 is arranged at the outer wall of one end of the fixing frame 201, a torsion spring 208 is arranged between the outer side of the rotating shaft 207 and the adjacent moving contacts 205, a rotor 209 is fixedly sleeved with a rotor 209, a mounting rod 210 is rotatably installed at the outer wall of one side of the fixing frame 201, a lock 211 is fixedly sleeved with the outer side of the rotor 209, one side of the lock catch 211 is movably connected with the supporting plate 203, one side of the lock catch 211 close to the fixing frame 201 is movably connected with the bottom of the pressing plate, one side of the fixing frame 212 is far away from the moving contacts 205, the moving contacts 205 is movably connected with the bottom the pressing plate 208, the rotating tightly, the rotor 209 is pushed by the elastic force of the rotating spring 208, and can realize the quick tripping operation of the rotor 203, and the quick tripping operation of the rotor is realized.
In order to conveniently adjust the inclination of the pressing plate 212, as shown in fig. 2, the device body 1 comprises three adjusting bolts 106, the three adjusting bolts 106 are inserted into the inner wall of one side of the cover plate 102 at equal intervals, one side of the adjusting bolts 106 away from the cover plate 102 is in abutting connection with the outer wall of the pressing plate 212, the cover plate 102 can be installed and fixed with the adjusting bolts 106, the pressing plate 212 can be pushed to rotate by rotation of the adjusting bolts 106, and then the inclination of the pressing plate 212 can be adjusted.
In order to enable the circuit breaker to stably operate, as shown in fig. 2 and 3, the number of the arc extinguishing assemblies 104 is the same as the number of the moving contacts 205, and the three arc extinguishing assemblies 104 and the three moving contacts 205 are all arranged at equal intervals, so that the circuit breaker can be subjected to arc extinguishing operation through the plurality of arc extinguishing assemblies 104.
In order to enable the rotor 209 to stably rotate inside the fixed housing 101, as shown in fig. 2 and 3, one end of the rotating shaft 207 is rotatably connected with the outer wall of the fixed housing 201, the other end of the rotating shaft 207 is rotatably connected with the inner wall of the fixed housing 101, the rotating shaft 207 is movably sleeved on the inner side of the stopper 206 at the same end, the fixed housing 101 and the fixed housing 201 can mount and fix the rotating shaft 207, and the stopper 206 can block and limit the rotor 209.
In order to realize the operation of the tripping mechanism 2, as shown in fig. 2 and 3, one end bottom of the rotor 209 is movably connected with the top of the adjacent moving contact 205, the other end outer wall of the rotor 209 is movably connected with one side outer wall of the lock catch 211, and the rotating of the moving contact 205 can push the rotor 209 to rotate, so as to drive the lock catch 211 to rotate, so that the lock catch 211 is quickly separated from the support plate 203, and the quick tripping operation of the circuit breaker can be realized.
The implementation mode specifically comprises the following steps: in the working process of the circuit breaker, the thermomagnetic system works normally, so that when a short circuit condition occurs in the circuit, the movable contact 205 can break through the elastic force of the torsion spring 208 to continue to rotate anticlockwise under the action of electric repulsive force, the rotor 209 can be pushed to rotate anticlockwise, the lock catch 211 can be pushed to rotate clockwise along with the rotation of the rotor 209, the lock catch 211 is separated from the supporting plate 203, the knife switch 202 trips under the elastic force of the spring of the knife switch, the tripping operation of the circuit breaker can be realized rapidly, tripping can be realized before the short circuit energy reaches a peak value, and the purpose of current limiting is achieved;
Meanwhile, when the circuit breaker is subjected to tripping test, the pressing switch 107 is pressed to move downwards, so that the pressing plate 212 can be pushed to rotate clockwise, the lock catch 211 can be driven to rotate anticlockwise through connection between the pressing plate 212 and the lock catch 211, the lock catch 211 can be rapidly separated from the supporting plate 203, further tripping operation of the circuit breaker can be realized, the working state of the circuit breaker can be conveniently checked, further the circuit breaker can be rapidly subjected to tripping operation under the condition of short circuit, damage to the circuit breaker or a circuit caused by short circuit energy can be avoided, and the problem that the circuit breaker is damaged easily due to the short circuit energy in the prior art is particularly solved.
While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.
Claims (5)
1. The utility model provides a quick trip's circuit breaker mechanism, includes device body (1), its characterized in that still includes:
the tripping mechanism (2) is arranged in the device body (1) and is used for tripping operation of the circuit breaker;
The device comprises a device body (1), wherein the device body comprises a fixed shell (101), a cover plate (102) is arranged at the top of the fixed shell (101), a connecting bolt (103) is arranged between the fixed shell (101) and the cover plate (102), an arc extinguishing component (104) is fixedly arranged on one side of the inside of the fixed shell (101), binding posts (105) are arranged on the outer walls of the two ends of the fixed shell (101), and a switch (107) is movably inserted into the inner wall of the top of the cover plate (102);
The tripping mechanism (2) comprises a fixing frame (201) and a pressing plate (212), wherein the fixing frame (201) is fixedly arranged at the bottom of the inner side of the fixed shell (101), a knife switch (202) is rotatably arranged at the inner side of the top of the fixing frame (201), a supporting plate (203) is rotatably arranged at the inner side of the bottom of the knife switch (202), moving contacts (205) are rotatably arranged at both sides and the middle position of the bottom of the fixing frame (201), a fixed contact (204) is arranged at the bottom of each of the three moving contacts (205), the pressing plate (212) is rotatably arranged on the inner wall of one side of the fixed shell (101), and the top of the pressing plate (212) is movably connected with the bottom of the switch (107);
The utility model discloses a fixed mounting structure for a motor vehicle, including fixing frame (201), fixed mounting, lock catch (211) have been installed in the outer wall of both ends of fixing frame (201), the one end outer wall of fixing frame (201) is provided with axis of rotation (207), be provided with torsional spring (208) between axis of rotation (207) outside and adjacent moving contact (205), rotor (209) have been cup jointed in the outside of axis of rotation (207), rotor (209) and adjacent stopper (206) top swing joint, one side outer wall rotation of fixing frame (201) installs installation pole (210), the outside of installation pole (210) is fixed cup jointed hasp (211), one side that hasp (211) are close to fixing frame (201) and backup pad (203) swing joint, one side and clamp plate (212) bottom swing joint that fixing frame (201) were kept away from to hasp (211).
2. The quick release circuit breaker mechanism of claim 1 wherein: the device body (1) comprises three adjusting bolts (106), the three adjusting bolts (106) are arranged on the inner wall of one side of the cover plate (102) in an equidistant threaded manner, and one side, away from the cover plate (102), of the adjusting bolts (106) is in abutting connection with the outer wall of the pressing plate (212).
3. The quick release circuit breaker mechanism of claim 1 wherein: the number of the arc extinguishing assemblies (104) is the same as that of the moving contacts (205), and three arc extinguishing assemblies (104) and three moving contacts (205) are arranged at equal intervals.
4. The quick release circuit breaker mechanism of claim 1 wherein: one end of the rotating shaft (207) is rotationally connected with the outer wall of the fixing frame (201), the other end of the rotating shaft (207) is rotationally connected with the inner wall of the fixed shell (101), and the rotating shaft (207) is movably sleeved on the inner side of the stop piece (206) at the same end.
5. The quick release circuit breaker mechanism of claim 1 wherein: one end bottom of the rotor (209) is movably connected with the top of the adjacent moving contact (205), and the outer wall of the other end of the rotor (209) is movably connected with one side outer wall of the lock catch (211).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420053170.5U CN221596352U (en) | 2024-01-09 | 2024-01-09 | Quick-release circuit breaker mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420053170.5U CN221596352U (en) | 2024-01-09 | 2024-01-09 | Quick-release circuit breaker mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221596352U true CN221596352U (en) | 2024-08-23 |
Family
ID=92408868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420053170.5U Active CN221596352U (en) | 2024-01-09 | 2024-01-09 | Quick-release circuit breaker mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221596352U (en) |
-
2024
- 2024-01-09 CN CN202420053170.5U patent/CN221596352U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |