CN210403634U - Dual-power circuit breaker - Google Patents
Dual-power circuit breaker Download PDFInfo
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- CN210403634U CN210403634U CN201921655093.6U CN201921655093U CN210403634U CN 210403634 U CN210403634 U CN 210403634U CN 201921655093 U CN201921655093 U CN 201921655093U CN 210403634 U CN210403634 U CN 210403634U
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- circuit breaker
- interlocking
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Abstract
The utility model belongs to the technical field of the circuit breaker, a dual power supply circuit breaker is related to, including first circuit breaker and second circuit breaker, still include first drive mechanism and second drive mechanism, be equipped with first interlocking mechanism and second interlocking mechanism between first drive mechanism and the second drive mechanism, first drive mechanism and first interlocking mechanism all connect in first drive shaft, and when first circuit breaker of first drive mechanism control was closed a floodgate, first interlocking mechanism carried on spacingly to second drive mechanism, and the second drive mechanism uncontrollable second circuit breaker is closed a floodgate, second drive mechanism and second interlocking mechanism all connect in the second drive shaft, and when second drive mechanism control second circuit breaker was closed a floodgate, the second interlocking mechanism carried on spacingly to first drive mechanism, the first circuit breaker of first drive mechanism uncontrollable. The utility model discloses simple structure, reasonable in design can enough guarantee driven reliability, can realize the interlock control between two circuit breakers again.
Description
Technical Field
The utility model belongs to the technical field of the circuit breaker, concretely relates to dual supply circuit breaker.
Background
In a power network, many users have high requirements on power supply reliability, such as coal mines and oil refineries, once a power failure accident occurs in units, the units will bring about great economic loss and even cause casualties, so in the power supply system of the units, a main power supply and a standby power supply are required to be prepared, when the power failure accident occurs in the main power supply, the standby power supply must be immediately put into power restoration, and in order to achieve the purpose, automatic switching between the main power supply and the standby power supply is required through a double-power-supply switching mechanism.
At present, a driving device of a dual-power circuit breaker adopts a cam swing rod transmission mechanism, strong impact and rebound can be generated in the switching-on and switching-off processes, even the switching-on, switching-off and switching-on phenomena of movable contacts and static contacts can be caused, and the burning loss of the contacts is serious. The transmission ratio of a driving part and a driven part of a cam oscillating bar mechanism is 1: 1, designed at 11: when the circuit breaker operates at 0% and 85% rated closing voltage, the closing speed of the circuit breaker is unstable because the force of the matched CD-10 electromagnetic operation device is greatly influenced by the voltage change, and the speed is higher than 0.6 m/s at high voltage; the speed is lower than 0.4 m/s at low voltage, and the use technical requirements cannot be well met.
Meanwhile, the interlocking function of the existing dual-power circuit breaker is not perfect, and the interlocking function is mainly expressed as follows: when one breaker cabinet supplies power, the other breaker cabinet is easily closed or separated by mistake due to no interlocking; two, when a circuit breaker cabinet power supply met the trouble, need the people for going this circuit breaker cabinet separating brake, just can the people for going another circuit breaker cabinet combined floodgate, because do not have the interlocking function between these two circuit breaker cabinets, make the power supply can not obtain the guarantee, have very big hidden danger to operating personnel and maintainer's safety.
According to the strategic objective of the current national construction of a strong intelligent power grid and the requirement of the construction of intelligent high-voltage switch equipment, the original mechanism cannot provide reliable guarantee for realizing an intelligent switch cabinet due to the fact that the original mechanism cannot play a role of mechanical interlocking.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the transmission effect that exists is poor among the prior art, interlocking function is weak, providing one kind can reduce the glare influence, guarantees the scanning recognition device of testing result stability and reliability and uses device's material detecting system.
In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a dual power circuit breaker, includes first circuit breaker and second circuit breaker, still includes the first drive mechanism of the first circuit breaker of control switching on and off and the second drive mechanism of control second circuit breaker switching on and off, be equipped with first interlocking mechanism and second interlocking mechanism between first drive mechanism and the second drive mechanism, first drive mechanism and first interlocking mechanism all connect in first drive shaft, and when first circuit breaker of first drive mechanism control was switched on, first interlocking mechanism carries on spacingly to second drive mechanism, and the second drive mechanism uncontrollable second circuit breaker is switched on, second drive mechanism and second interlocking mechanism all connect in the second drive shaft, and when second drive mechanism control second circuit breaker was switched on, the second interlocking mechanism carried on spacingly to first drive mechanism, and first circuit breaker uncontrollable was switched on to first drive mechanism.
Preferably, the first transmission mechanism includes a first connecting rod, and two ends of the first connecting rod are respectively connected to the first driving shaft and a moving contact in a vacuum arc extinguishing chamber of the first circuit breaker.
Preferably, the second transmission mechanism comprises a second connecting rod, and two ends of the second connecting rod are respectively connected with the second driving shaft and a moving contact in a vacuum arc extinguishing chamber of the second circuit breaker.
Preferably, first interlocking device includes first locating part and first interlocking lever, first locating part includes first limiting plate, first spacing axle and first limit switch, be equipped with the first groove of stepping down on the first spacing axle, be equipped with the first sincere son that corresponds with the first groove position of stepping down on the first driving half axle that first driving shaft connects.
Preferably, the second interlocking mechanism includes second locating part and second interlocking pole, the second locating part includes second limiting plate, the spacing axle of second and second limit switch, the spacing epaxial second groove of stepping down that is equipped with of second, be equipped with on the second drive semi-axis that the second actuating shaft is connected and step down the sincere son of the second that the position of groove corresponds with the second.
Preferably, first interlocking rod one end is connected first drive shaft, and the other end corresponds the setting of second limiting plate, second interlocking rod one end is connected the second drive shaft, and the other end corresponds the setting of first limiting plate.
Preferably, the first driving shaft and the second driving shaft are parallel to each other and arranged in central symmetry.
After the technical scheme is adopted, the utility model provides a pair of dual power supply circuit breaker has following beneficial effect:
the utility model discloses a through setting up two drive shafts, and each drive shaft all is connected with drive mechanism and interlocking device, when the drive mechanism that a drive shaft drive its connection accomplishes the combined floodgate of a circuit breaker, the interlocking device that this drive shaft is connected realizes spacing to another drive shaft, makes another drive shaft can't drive its connected drive mechanism or interlocking device, namely another drive shaft can't realize combined floodgate to another circuit breaker; to sum up, the utility model discloses make another circuit breaker unable combined floodgate when can drive a circuit breaker combined floodgate, simple structure, reasonable in design can enough guarantee driven reliability, can realize the interlocking control between two circuit breakers again, has improved the security of equipment use greatly, has very big market value, is worth extensively popularizing and applying.
Drawings
Fig. 1 is a schematic structural diagram of a dual power circuit breaker according to the present invention;
fig. 2 is a schematic structural diagram of a first transmission mechanism in the present invention;
fig. 3 is a schematic structural view of an interlocking mechanism according to the present invention;
fig. 4 is a schematic structural diagram of the first driving shaft portion of the present invention.
Wherein: the interlocking mechanism comprises a first transmission mechanism 1, a first connecting rod 11, a second transmission mechanism 2, a second connecting rod 21, a first interlocking mechanism 3, a first limiting part 31, a first limiting plate 311, a first limiting shaft 312, a first limiting switch 313, a first abdicating groove 314, a first interlocking rod 32, a second interlocking mechanism 4, a second limiting part 41, a second limiting plate 411, a second limiting shaft 412, a second limiting switch 413, a second abdicating groove 414, a second interlocking rod 42, a first driving shaft 5, a second driving shaft 6, a first driving half shaft 7, a first pawl 71, a second driving half shaft 8 and a second pawl 81.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
As shown in fig. 1-4, the present invention provides a dual power circuit breaker, which comprises a first circuit breaker and a second circuit breaker, and further comprises a first transmission mechanism 1 for controlling the opening and closing of the first circuit breaker and a second transmission mechanism 2 for controlling the opening and closing of the second circuit breaker, wherein a first interlocking mechanism 3 and a second interlocking mechanism 4 are disposed between the first transmission mechanism 1 and the second transmission mechanism 2, the first transmission mechanism 1 and the first interlocking mechanism 3 are both connected to a first driving shaft 5, when the first driving shaft 5 controls the opening and closing of the first circuit breaker through the first transmission mechanism 1, the first interlocking mechanism 3 limits the second transmission mechanism 2, the second transmission mechanism 2 cannot control the opening and closing of the second circuit breaker, the second transmission mechanism 2 and the second interlocking mechanism 4 are both connected to a second driving shaft 6, when the second driving shaft 6 controls the second circuit breaker through the second transmission mechanism 2, the second interlocking mechanism 4 limits the first transmission mechanism 1, and the first transmission mechanism 1 cannot control the first breaker to be switched on.
The second transmission mechanism 2 includes a second connecting rod 21, two ends of the second connecting rod 21 are respectively connected to the second driving shaft 6 and a moving contact in a vacuum arc extinguishing chamber of the second circuit breaker, specifically, the second connecting rod 21 is rotatably connected to the second rack, the moving contacts of the second driving shaft 6 and the second circuit breaker are respectively disposed at the left and right sides of the second rack, when one end of the second connecting rod 21 connected to the second driving shaft 6 moves downward under the action of the second driving shaft 6, the other end of the second connecting rod 21 pushes the moving contact of the second circuit breaker to move upward to end the fixed contact of the second circuit breaker, thereby realizing the closing of the second circuit breaker.
It should be noted that, the first driving shaft 5 and the second driving shaft 6 may be connected to a plurality of first connecting rods 11 and a plurality of second connecting rods 21 simultaneously, that is, a plurality of vacuum arc-extinguishing chambers arranged in parallel, that is, a plurality of moving contacts, may be arranged on the same circuit breaker, and the specific number may be adjusted as needed, which is not limited specifically herein.
The first driving shaft 5 is connected with a first driving half shaft 7 and a first interlocking mechanism 3 which are linked with the first driving shaft 5, and the second driving shaft 6 is connected with a second driving half shaft 8 and a second interlocking mechanism 4 which are linked with the second driving shaft 6.
The first interlocking mechanism 3 includes a first limiting member 31 and a first interlocking lever 32, the first limiting member 31 is disposed corresponding to a position of the first driving half shaft 7, specifically, the first limiting member 31 includes a first limiting plate 311, a first limiting shaft 312 and a first limiting switch 313, the first limiting plate 311 is disposed on the first limiting shaft 312, the first limiting switch 313 is a manual or electric switch and is configured to drive the first limiting plate 311 and the first limiting shaft 312 to rotate, a first abdicating groove 314 is disposed on the first limiting shaft 312, the first abdicating groove 314 corresponds to a position of the first pawl 71 on the first driving half shaft 7, only when the first limiting shaft 312 rotates to the first abdicating groove 314 to align with the first pawl 71, the first pawl 71 can realize barrier-free rotation, and the first driving shaft 5 can drive the first circuit breaker to realize closing.
The second interlocking mechanism 4 includes a second limiting member 41 and a second interlocking rod 42, the second limiting member 41 is disposed at a position corresponding to the second driving half shaft 8, specifically, the second limiting member 41 includes a second limiting plate 411, a second limiting shaft 412 and a second limiting switch 413, the second limiting plate 411 is disposed on the second limiting shaft 412, the second limiting switch 413 is a manual or electric switch and is configured to drive the second limiting plate 411 and the second limiting shaft 412 to rotate, a second abdicating groove 414 is disposed on the second limiting shaft 412, the second abdicating groove 414 is disposed corresponding to the position of the second pawl 81 on the second driving half shaft 8, only when the second limiting shaft 412 rotates to the second abdicating groove 414 to align with the second pawl 81, the second pawl 81 can achieve barrier-free rotation, and the second driving shaft 6 can drive the second circuit breaker to achieve closing.
Further, first interlocking rod 32 one end is connected first drive shaft 5, and the other end corresponds second limiting plate 411 and sets up, and when first drive shaft 5 drove first circuit breaker and closes a floodgate, first interlocking rod 32 supported tightly in the top of second limiting plate 411, and second limit switch 413 can't drive second limiting plate 411 and second limiting shaft 412 and rotate, and second drive shaft 6 can't drive the second circuit breaker and realize closing a floodgate.
Further, second drive shaft 6 is connected to second interlock pole 42 one end, and the other end corresponds first limiting plate 311 and sets up, and when second drive shaft 6 drive second circuit breaker switched on, second interlock pole 42 supports tightly in the top of first limiting plate 311, and first limiting switch 313 can't drive first limiting plate 311 and first limiting shaft 312 and rotate, and first drive shaft 5 can't drive first circuit breaker and realize switching on.
The utility model provides a pair of dual supply circuit breaker when using, when first circuit breaker and second circuit breaker are the switching-off, arbitrary circuit breaker can be closed a floodgate.
When the first breaker is selected to be switched on, the first limit switch 313 drives the first limit plate 311 and the first limit shaft 312 to rotate, so that the first abdicating groove 314 is aligned with the first pawl 71, and the first pawl 71 realizes barrier-free rotation, namely the first drive half shaft 7 and the first drive shaft 1 can rotate without barrier, so that the first drive shaft 5 drives the first connecting rod 11 to realize the switching on of the first breaker; after the first circuit breaker is switched on, the first interlocking rod 32 abuts against the second limiting plate 411, the second limiting switch 413 cannot drive the second limiting plate 411 and the second limiting shaft 412 to rotate, the second pawl 81 cannot pass through the second abdicating groove 414 to rotate, that is, the second driving half shaft 8 and the second driving shaft 6 cannot rotate, and therefore, the second driving shaft 6 cannot drive the second connecting rod 21 to realize the switching on of the second circuit breaker.
When the first circuit breaker is switched off, the first interlocking rod 32 leaves the second limiting plate 411, and the second limiting switch 413 can drive the second limiting plate 411 and the second limiting shaft 412 to rotate, so that the second abdicating groove 414 is aligned with the second latch 81, and the second latch 81 can rotate without obstacle, that is, the second driving half shaft 8 and the second driving shaft 6 can rotate without obstacle, so that the second driving shaft 6 drives the second connecting rod 21 to realize the switching-on of the second circuit breaker; after the second circuit breaker is switched on, the second linkage rod 42 abuts against the upper side of the first limiting plate 311, the first limiting switch 313 cannot drive the first limiting plate 311 and the first limiting shaft 312 to rotate, the first pawl 71 cannot pass through the first abdicating groove 314 to rotate, namely, the first driving half shaft 7 and the first driving shaft 5 cannot rotate, and therefore the first driving shaft 5 cannot drive the first connecting rod 11 to realize the switching on of the first circuit breaker.
Therefore, use the utility model provides a pair of dual power circuit breaker, when arbitrary circuit breaker closes a floodgate, another circuit breaker can't close a floodgate.
When any one breaker breaks down, if the breaker is opened, the other breaker can be closed; when another breaker is switched on, the breaker can not be switched on again, so that misoperation can be avoided.
To sum up, the utility model discloses make another circuit breaker unable combined floodgate when can drive a circuit breaker combined floodgate, simple structure, reasonable in design can enough guarantee driven reliability, can realize the interlocking control between two circuit breakers again, has improved the security of equipment use greatly, has very big market value, is worth extensively popularizing and applying.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. A dual power circuit breaker includes a first circuit breaker and a second circuit breaker, characterized in that: the automatic control device is characterized by further comprising a first transmission mechanism (1) for controlling the opening and closing of a first circuit breaker and a second transmission mechanism (2) for controlling the opening and closing of a second circuit breaker, wherein a first interlocking mechanism (3) and a second interlocking mechanism (4) are arranged between the first transmission mechanism (1) and the second transmission mechanism (2), the first transmission mechanism (1) and the first interlocking mechanism (3) are connected to a first driving shaft (5), when the first transmission mechanism (1) controls the closing of the first circuit breaker, the first interlocking mechanism (3) limits the second transmission mechanism (2), the second transmission mechanism (2) cannot control the closing of the second circuit breaker, the second transmission mechanism (2) and the second interlocking mechanism (4) are connected to a second driving shaft (6), when the second transmission mechanism (2) controls the closing of the second circuit breaker, the second interlocking mechanism (4) limits the first transmission mechanism (1), the first transmission mechanism (1) cannot control the first breaker to be switched on.
2. The dual-power-supply circuit breaker according to claim 1, characterized in that: the first transmission mechanism (1) comprises a first connecting rod (11), and two ends of the first connecting rod (11) are respectively connected with a first driving shaft (5) and a moving contact in a vacuum arc extinguishing chamber of the first circuit breaker.
3. The dual-power-supply circuit breaker according to claim 1, characterized in that: the second transmission mechanism (2) comprises a second connecting rod (21), and two ends of the second connecting rod (21) are respectively connected with the second driving shaft (6) and a moving contact in a vacuum arc extinguishing chamber of the second circuit breaker.
4. The dual-power-supply circuit breaker according to claim 1, characterized in that: first interlocking device (3) are including first locating part (31) and first interlocking lever (32), first locating part (31) are including first limiting plate (311), first spacing axle (312) and first limit switch (313), be equipped with first groove of stepping down (314) on first spacing axle (312), be equipped with on first drive semi-axis (7) that first drive shaft (5) are connected and hold in the palm first sincere son (71) that corresponds with first groove of stepping down (314) position.
5. The dual-power-supply circuit breaker according to claim 4, wherein: the second interlocking mechanism (4) includes second locating part (41) and second interlock pole (42), second locating part (41) include second limiting plate (411), spacing axle of second (412) and second limit switch (413), be equipped with the second groove of stepping down (414) on the spacing axle of second (412), be equipped with the second pawl (81) that correspond with second groove of stepping down (414) position on the second drive semi-axis (8) that second drive shaft (6) are connected.
6. The dual-power-supply circuit breaker of claim 5, wherein: first drive shaft (5) is connected to first interlocking pole (32) one end, and the other end corresponds second limiting plate (411) and sets up, second drive shaft (6) is connected to second interlocking pole (42) one end, and the other end corresponds first limiting plate (311) and sets up.
7. The dual-power-supply circuit breaker according to claim 1, characterized in that: the first driving shaft (5) and the second driving shaft (6) are parallel to each other and are arranged in central symmetry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921655093.6U CN210403634U (en) | 2019-09-30 | 2019-09-30 | Dual-power circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921655093.6U CN210403634U (en) | 2019-09-30 | 2019-09-30 | Dual-power circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210403634U true CN210403634U (en) | 2020-04-24 |
Family
ID=70342650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921655093.6U Active CN210403634U (en) | 2019-09-30 | 2019-09-30 | Dual-power circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210403634U (en) |
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2019
- 2019-09-30 CN CN201921655093.6U patent/CN210403634U/en active Active
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