CN113363093B - Remote power-off device and power-off system thereof - Google Patents
Remote power-off device and power-off system thereof Download PDFInfo
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- CN113363093B CN113363093B CN202010144868.4A CN202010144868A CN113363093B CN 113363093 B CN113363093 B CN 113363093B CN 202010144868 A CN202010144868 A CN 202010144868A CN 113363093 B CN113363093 B CN 113363093B
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- rotating shaft
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- 230000007246 mechanism Effects 0.000 claims abstract description 237
- 238000004146 energy storage Methods 0.000 claims abstract description 173
- 238000005192 partition Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000009471 action Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 238000002955 isolation Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000009286 beneficial 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
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
- H01H3/3042—Power arrangements internal to the switch for operating the driving mechanism using spring motor using a torsion spring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/54—Mechanisms for coupling or uncoupling operating parts, driving mechanisms, or contacts
- H01H3/58—Mechanisms for coupling or uncoupling operating parts, driving mechanisms, or contacts using friction, toothed, or other mechanical clutch
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
- H01H2003/3089—Devices for manual releasing of locked charged spring motor; Devices for remote releasing
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- Mechanical Operated Clutches (AREA)
Abstract
A remote power-off device and a power-off system thereof relate to the technical field of low-voltage switches. The remote power-off device comprises a driving mechanism, a guide frame, a linkage rod, a bracket, a rotating shaft, a clutch mechanism sleeved on the rotating shaft, an energy storage disc, a first limit mechanism and a second limit mechanism hinged on two sides of the bracket, wherein one end of the linkage rod is connected with the energy storage disc, and the other end of the linkage rod is connected with a disconnecting switch; the guide frame comprises a first body with a tripping cavity and a guide folding edge connected with the first body, one end of the first limiting mechanism penetrates through a notch of the bracket to extend to the tripping cavity, a first sliding groove is arranged at the position, corresponding to the guide folding edge, of the bracket, and the driving mechanism is used for driving the guide folding edge to enable the first limiting mechanism to be separated from the tripping cavity and to be abutted on the first body; the clutch mechanism is fixedly connected with the rotating shaft, the energy storage disc is in sliding connection with the clutch mechanism, the reset spring and the energy storage spring are sleeved on the clutch mechanism, and the second limiting mechanism can be abutted with the clutch mechanism to lock the rotation of the energy storage disc.
Description
Technical Field
The invention relates to the technical field of low-voltage power switches, in particular to a remote power-off device and a power-off system thereof.
Background
When the electric circuit and the equipment thereof are maintained and overhauled, in order to ensure the safety of overhaulers and equipment, the power supply is required to be cut off, so that the circuit or the equipment to be overhauled is isolated from the electrified part, and the effective isolation distance is kept.
In the prior art, a double-breakpoint movable contact system is switched on and off by adopting an isolating switch so as to realize the connection and disconnection of an electric circuit and equipment thereof. The isolating switch electrical product has the characteristics of simple structure, convenient operation and maintenance and the like. The switch has high dielectric property, protective capability, reliable operation safety and the like by utilizing the characteristics of the shell.
However, such isolation switches of the prior art do not meet the need to remotely shut down the circuit when it fails.
Disclosure of Invention
The invention aims to provide a remote power-off device and a power-off system thereof, which can realize remote power-off of an electric circuit and equipment thereof.
Embodiments of the present invention are implemented as follows:
In one aspect of the invention, a remote power-off device is provided, the remote power-off device comprises a driving mechanism, a guide frame, a linkage rod, a bracket, a rotating shaft penetrating through the bracket, a clutch mechanism and an energy storage disc which are sequentially sleeved on the rotating shaft, and a first limit mechanism and a second limit mechanism which are respectively hinged on two sides of the bracket, wherein one end of the linkage rod is connected with the energy storage disc, and the other end of the linkage rod is connected with a disconnecting switch; the guide frame comprises a first body and a guide folded edge which are connected with each other, the first body is provided with a tripping cavity, one end of the first limiting mechanism penetrates through a notch of the support to extend to the tripping cavity, and a first chute is arranged at the position of the support corresponding to the guide folded edge; the clutch mechanism is fixedly connected with the rotating shaft, the energy storage disc is in sliding connection with the clutch mechanism, so that the clutch mechanism drives the energy storage disc to rotate along with the rotating shaft, a reset spring and an energy storage spring are sleeved on the clutch mechanism respectively, one end of the reset spring is fixedly connected with the bracket, the other end of the reset spring is in sliding connection with the bracket, one end of the energy storage spring is fixedly connected with the energy storage disc, and the other end of the energy storage spring is fixedly connected with the bracket; the second limiting mechanism can be abutted with the clutch mechanism to lock the rotation of the energy storage disc; the rotating shaft rotates along a first direction to enable the clutch mechanism to be separated from and abutted against the second limiting mechanism, when one side of the energy storage disc, which is close to the second limiting mechanism, rotates to be close to one side of the first limiting mechanism, one side of the clutch mechanism, which is close to the second limiting mechanism, rotates to be close to one side of the guide frame and pushes the guide folded edge, so that the guide frame drives the driving mechanism to reset, and the first limiting mechanism is separated from the tripping cavity and is abutted against the first body to compress the reset spring to store energy; when the reset spring releases energy storage, the rotating shaft rotates along a second direction, the first limiting mechanism locks the energy storage disc, the clutch mechanism is separated from the guide folded edge, and the first direction is opposite to the second direction. The remote power-off device can realize remote power-off of the electric circuit and equipment thereof.
Optionally, the first body includes the deflector and from the one end of deflector outwards extends the hem that resets, the tripping device is located on the deflector, the hem that resets with the direction hem is located respectively the adjacent both ends of deflector, actuating mechanism is used for the drive the hem that resets removes, so that the direction hem border the first spout of support slides.
Optionally, the support include first connecting plate and connect respectively in both sides board at first connecting plate both ends, first connecting plate cover is located in the pivot, first stop gear with second stop gear articulates respectively and sets up two on the curb plate, first spout is located on the first connecting plate, be close to first stop gear one side the curb plate with the junction of first connecting plate is equipped with the breach.
Optionally, the clutch mechanism includes connect respectively in epaxial separation and reunion dish and hasp dish, reset spring with energy storage spring overlaps respectively and locates in the pivot, and be located separation and reunion dish with between the hasp dish, wherein, energy storage spring locates between the energy storage dish with the reset spring, be equipped with first arc spout on the support, first arc spout with the pivot is concentric setting, reset spring one end with support fixed connection, the other end pass the hasp dish with first arc spout sliding connection, the separation and reunion dish is close to the one side of energy storage dish is equipped with first arch, energy storage dish corresponds first arch department is equipped with the second arc spout, the second arc spout with the pivot is concentric setting, second stop gear is close to one end butt of support in on the hasp dish.
Optionally, the clutch mechanism further comprises a sleeve sleeved on the rotating shaft, the sleeve comprises a cylinder body and an annular partition plate surrounding the outer wall surface of the cylinder body, the annular partition plate is used for dividing the cylinder body into a first sub-cylinder body and a second sub-cylinder body which are mutually connected, the energy storage spring is sleeved on the outer wall of the first sub-cylinder body, and the reset spring is sleeved on the outer wall of the second sub-cylinder body.
Optionally, the first protrusions are arranged on the clutch disc at intervals, the second arc-shaped sliding grooves are arranged on the energy storage disc and are arranged corresponding to the first protrusions.
Optionally, the locking plate comprises a second body, an energy storage push rod and a limiting push rod, wherein the energy storage push rod and the limiting push rod extend outwards from the second body, the second body is sleeved on the rotating shaft, and the second limiting mechanism can be abutted with the limiting push rod; the energy storage push rod can be used for pushing the guide folded edge, so that the first limiting mechanism abuts against the first body and compresses the reset spring to store energy.
Optionally, the first stop gear includes interconnect's third body and first baffle, first baffle is located the third body is kept away from one side of support is used for spacing the energy storage dish, the third body articulates the setting and is in one side of support, the third body is close to the one end of support passes the breach of support extends to tripping chamber department.
Optionally, the third body is articulated to be set up through first round pin axle one side of support, first stop gear still include with third body coupling's first fender platform, still the cover is equipped with first torsional spring on the first round pin axle, the one end overlap joint of first torsional spring in on the first fender platform, the other end overlap joint in on the support.
Optionally, the second stop gear includes interconnect's fourth body and second baffle, the second baffle is located the fourth body is kept away from one side of support is used for spacing the energy storage dish, the fourth body articulates the setting and is in one side of support, the fourth body be close to the one end butt of support in on the clutch mechanism, so that second stop gear locking the energy storage dish.
Optionally, the fourth body is articulated to be set up through the second round pin axle one side of support, second stop gear still include with fourth body coupling's second keeps off the platform, still the cover is equipped with the second torsional spring on the second round pin axle, the one end overlap joint of second torsional spring in on the second keeps off the platform, the other end overlap joint in on the support.
In another aspect of the present invention, a remote power-off system is provided, which includes a disconnecting switch and the remote power-off device described above, where the remote power-off device is connected to the disconnecting switch, and the remote power-off device is used to control the connection and disconnection of the disconnecting switch. The remote power-off system can realize the function of remote power-off when the electric circuit and equipment thereof are in fault.
The beneficial effects of the invention include:
According to the remote power-off device provided by the application, when a power-off signal is received, the driving mechanism acts to drive the guide frame to move, at the moment, the first limiting mechanism rotates to enter the tripping cavity, the energy storage disc loses the limit of the first limiting mechanism, the energy storage disc is unlocked, the energy storage spring stores energy and releases, the energy storage disc rotates under the action of the energy storage spring, the linkage rod is pulled, and the isolation switch is pulled by the linkage rod to cut off a circuit; after the energy storage disc rotates in place, one end of the clutch mechanism, which is close to the support, pushes the second limiting mechanism to rotate to enter a limiting locking state, the energy storage disc is locked by the second limiting mechanism, and the linkage rod cannot pull the energy storage disc to rotate at the moment. The remote power-off device can realize the function of remote power-off when the electric circuit and the equipment thereof have faults, thereby protecting the safety of the electric circuit and the equipment thereof. Meanwhile, under the condition that the faults of the electric circuit and equipment thereof are not solved, the isolating switch cannot realize the function of circuit connection. Only after the circuit fault is removed, the operating mechanism stores energy, and then the circuit can be switched on. Thereby protecting the safety of the electrical circuit and its equipment.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a remote power-off device according to an embodiment of the present invention;
FIG. 2 is a second schematic diagram of a remote power-off device according to an embodiment of the present invention;
FIG. 3 is a third schematic diagram of a remote power-off device according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a remote power-off device according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a remote power-off device according to an embodiment of the present invention;
Fig. 6 is a schematic structural diagram of a guide frame according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an energy storage disc according to an embodiment of the present invention;
Fig. 8 is a schematic structural diagram of a latch plate according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of a clutch disc according to an embodiment of the present invention;
FIG. 10 is a schematic structural view of a sleeve according to an embodiment of the present invention;
FIG. 11 is a schematic structural view of a bracket according to an embodiment of the present invention;
fig. 12 is a schematic structural view of a first limiting mechanism according to an embodiment of the present invention;
fig. 13 is a schematic structural view of a second limiting mechanism according to an embodiment of the present invention.
Icon: 10-a driving mechanism; 20-a guide frame; 21-a first body; 211-a tripping cavity; 212-a guide plate; 213-resetting the folded edge; 22-guiding flanging; 30-linkage rod; 40-rotating shaft; 50-a bracket; 51-a first connection plate; 52-side plates; 53-notch; 54-a first chute; 55-a first arc chute; 56-mounting seats; 57-mounting a cover; 58-signal insert wafer; 59-operating the handle; 61-a return spring; 62-an energy storage spring; 63-clutch disc; 631-a first protrusion; 64-catch tray; 641-a second body; 642-an energy storage pushrod; 643-limit push rod; 65-sleeve; 651-cylinder; 652-annular separator; 653—a first sub-cylinder; 654-a second sub-cylinder; 70-an energy storage disc; 71-a second arc chute; 72-a third arc chute; 80-a first limiting mechanism; 81-a third body; 82-a first baffle; 83-a first pin; 84-a first torsion spring; 85-a first baffle; 90-a second limiting mechanism; 91-fourth body; 92-a second baffle; 93-a second pin shaft; 94-a second torsion spring; 95-a second baffle.
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 of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. 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.
Referring to fig. 1 to 5, the present embodiment provides a remote power-off device, which includes a driving mechanism 10, a guide frame 20, a linkage rod 30, a bracket 50, a rotating shaft 40 passing through the bracket 50, a clutch mechanism and an energy storage disc 70 sequentially sleeved on the rotating shaft 40, and a first limit mechanism 80 and a second limit mechanism 90 respectively hinged on two sides of the bracket 50, wherein one end of the linkage rod 30 is connected with the energy storage disc 70, and the other end is connected with an isolating switch.
The guide frame 20 includes a first body 21 and a guide flange 22 that are connected to each other, the first body 21 is provided with a trip cavity 211, one end of the first limiting mechanism 80 extends to the trip cavity 211 through a notch 53 of the bracket 50, a first chute 54 is disposed at a position of the bracket 50 corresponding to the guide flange 22, and the driving mechanism 10 is used for driving the guide flange 22 to slide in the first chute 54, so that the first limiting mechanism 80 is separated from the trip cavity 211 and is abutted to the first body 21.
In the above state, the driving portion of the driving mechanism 10 is in the ejecting state; when the rotating shaft 40 is rotated in the first direction (i.e., clockwise), the clutch mechanism is used to drive the driving part of the driving mechanism 10 to reset (i.e., retract); when the remote power-off device receives the power-off signal, the driving part of the driving mechanism 10 pops up, and at this time, the driving mechanism 10 is used for driving the guide frame 20 to move.
In addition, the clutch mechanism is fixedly connected with the rotating shaft 40, the energy storage disc 70 is in sliding connection with the clutch mechanism, so that the clutch mechanism can drive the energy storage disc 70 to rotate along with the rotating shaft 40, a reset spring 61 and an energy storage spring 62 are respectively sleeved on the clutch mechanism, one end of the reset spring 61 is fixedly connected with the bracket 50, the other end of the reset spring is in sliding connection with the bracket 50, one end of the energy storage spring 62 is fixedly connected with the energy storage disc 70, and the other end of the energy storage spring 62 is fixedly connected with the bracket 50; the second limiting mechanism 90 may abut the clutch mechanism to lock the rotation of the energy storage disc 70.
It should be noted that, the clutch mechanism is fixedly connected with the rotating shaft 40, and the energy storage disc 70 is slidably connected with the clutch mechanism, so that the rotating shaft 40 can rotate synchronously with the clutch mechanism, and the energy storage disc 70 can also rotate along with the rotating shaft 40 through the driving of the clutch mechanism, but because the clutch mechanism is slidably connected with the energy storage disc 70, the clutch mechanism has a sliding starting end and a sliding ending end, so that the rotating shaft 40 can only drive the clutch mechanism to rotate within the range from the sliding starting end to the sliding ending end, and when the clutch mechanism rotates from the sliding starting end to the sliding ending end, the rotating shaft 40 continues to rotate, and then the clutch mechanism drives the energy storage disc 70 to rotate along with the rotating shaft 40.
When the rotating shaft 40 rotates along the first direction (i.e. clockwise) to separate the clutch mechanism from the second limiting mechanism 90, and the side of the energy storage disc 70, which is close to the second limiting mechanism 90, rotates to the side, which is close to the first limiting mechanism 80, of the clutch mechanism, and rotates to the side, which is close to the guide frame 20, of the clutch mechanism, and pushes the guide folded edge 22, at this time, the first limiting mechanism 80 is separated from the trip cavity 211, the first limiting mechanism 80 is abutted against the first body 21, and the reset spring 61 stores energy; when the return spring 61 releases the stored energy, the rotating shaft 40 rotates in a second direction (i.e., counterclockwise), the first limiting mechanism 80 locks the energy storage disc 70, and the clutch mechanism disengages from the guide flange 22, wherein the first direction is opposite to the second direction.
The working process of the remote power-off device provided by the embodiment is as follows:
At the initial state: referring to fig. 4 again, the second limiting mechanism 90 abuts against one end of the clutch mechanism, which is close to the bracket 50, and one end of the second limiting mechanism 90, which is far away from the bracket 50, limits and locks the energy storage disc 70, at this time, the energy storage disc 70 cannot rotate, and the clutch switch cannot be pulled;
In the energy storage state: referring to fig. 5 again, the rotating shaft 40 rotates in the first direction (i.e. rotates clockwise), the clutch mechanism rotates along with the rotating shaft 40, and then one end of the clutch mechanism, which is close to the bracket 50, is separated from the second limiting mechanism 90, and the second limiting mechanism 90 rotates on one side of the bracket 50, so that the energy storage disc 70 is unlocked; the rotating shaft 40 continues to rotate along the first direction, and then the clutch mechanism drives the energy storage disc 70 to rotate, so that the energy storage spring 62 stores energy; when the clutch mechanism rotates by a certain angle (i.e. the energy storage disc 70 is limited and blocked at one end of the second limiting mechanism 90 and rotates to be close to one end of the first limiting mechanism 80), at this time, the clutch mechanism pushes the guide flange 22 of the guide frame 20, so that the guide frame 20 moves to a position (at this time, the driving mechanism 10 is pushed to reset), and then the first limiting mechanism 80 is separated from the tripping cavity 211 and is abutted to the surface of the first body 21, and the first limiting mechanism 80 rotates to limit the energy storage disc 70; when the rotation of the rotating shaft 40 is stopped, the energy storage of the energy storage spring 62 is released, and the rotating shaft 40 rotates in the second direction (i.e. rotates counterclockwise), but due to the existence of the first limiting mechanism 80, the energy storage disc 70 is limited and locked by the first limiting mechanism 80, and due to the sliding relationship between the energy storage disc 70 and the clutch mechanism, the clutch mechanism rotates by a certain angle to disengage from the guide flange 22.
Upon receipt of the power down signal: the driving mechanism 10 acts, the driving part of the driving mechanism 10 pops up, the driving guide frame 20 is driven to move, at the moment, the first limiting mechanism 80 is separated from the surface of the first body 21 and then rotates to enter the tripping cavity 211, the energy storage disc 70 loses the limitation of the first limiting mechanism 80, the energy storage disc 70 is unlocked, the energy storage spring 62 releases energy storage, the energy storage disc 70 rotates under the action of the energy storage spring 62, the linkage rod 30 is pulled, and the linkage rod 30 pulls the isolating switch cut-off circuit; after the energy storage disc 70 rotates in place, one end of the clutch mechanism, which is close to the bracket 50, pushes the second limiting mechanism 90 to rotate into a limiting locking state, the energy storage disc 70 is locked by the second limiting mechanism 90, and at the moment, the linkage rod 30 cannot pull the energy storage disc 70 to rotate.
In this embodiment, the energy storage disc 70 is further provided with a third arc chute 72, and the third arc chute 72 is disposed concentrically with the rotating shaft 40. The linkage 30 is slidably coupled within the third arcuate chute 72. Thus, when the remote power-off device is in the initial state, as shown in fig. 4, the energy storage disc 70 is locked, and the linkage rod 30 cannot move; when the remote power-off device is in the energy storage state, referring to fig. 5, the linkage rod 30 can slide in the third arc chute 72, so that the clutch switch can be switched off or on (i.e. connected or disconnected).
The remote power-off device can realize the function of remote power-off when the electric circuit and the equipment thereof have faults, thereby protecting the safety of the electric circuit and the equipment thereof. Meanwhile, under the condition that the faults of the electric circuit and equipment thereof are not solved, the isolating switch cannot realize the function of circuit connection. Only after the circuit fault is removed, the operating mechanism stores energy, and then the circuit can be switched on. Thereby protecting the safety of the electrical circuit and its equipment.
Referring to fig. 6 again, in the present embodiment, the first body 21 of the guide frame 20 includes a guide plate 212 and a reset flange 213 extending outward from one end of the guide plate 212, the trip cavity 211 is disposed on the guide plate 212, the reset flange 213 and the guide flange 22 are respectively disposed at two adjacent ends of the guide plate 212, and the driving mechanism 10 is used for driving the reset flange 213 to move so that the guide flange 22 slides along the first chute 54 of the bracket 50. It should be noted that, the guide frame 20 is located on a side of the support 50 away from the energy storage disc 70, the guide flange 22 extends from a side of the guide plate 212 near the rotating shaft 40 toward the support 50, and the guide flange 22 may slide in the first slide groove 54 through the first slide groove 54 of the support 50, and the reset flange 213 extends from the guide plate 212 toward a side away from the support 50, and the driving mechanism 10 is used to drive the reset flange 213 to move the guide frame 20.
In this embodiment, please refer to fig. 11 in combination, the bracket 50 includes a first connecting plate 51 and two side plates 52 respectively connected to two ends of the first connecting plate 51, the first connecting plate 51 is sleeved on the rotating shaft 40, the first limiting mechanism 80 and the second limiting mechanism 90 are respectively hinged on the two side plates 52, and a notch 53 is provided at a connection position between the side plate 52 near one side of the first limiting mechanism 80 and the first connecting plate 51. The first connecting plate 51 is provided with a first chute 54 corresponding to the guide flange 22.
Referring to fig. 7 to 9, the clutch mechanism includes a clutch disc 63 and a latch disc 64 respectively fixedly connected to the rotating shaft 40, a return spring 61 and an energy storage spring 62 are respectively sleeved on the rotating shaft 40 and located between the clutch disc 63 and the latch disc 64, wherein the energy storage spring 62 is located between the energy storage disc 70 and the return spring 61, a first arc chute 55 is arranged on the bracket 50, the first arc chute 55 is concentrically arranged with the rotating shaft 40, one end of the return spring 61 is fixedly connected with the bracket 50, the other end of the return spring passes through the latch disc 64 and is slidably connected with the first arc chute 55, a first protrusion 631 is arranged on one surface of the clutch disc 63 close to the energy storage disc 70, a second arc chute 71 is arranged at a position corresponding to the first protrusion 631, the second arc chute 71 is concentrically arranged with the rotating shaft 40, and one end of the second limiting mechanism 90 close to the bracket 50 is abutted to the latch disc 64.
Thus, the rotation of the rotating shaft 40 can drive the clutch disc 63 and the lock catch disc 64 to synchronously rotate, and correspondingly pull the energy storage spring 62 and the reset spring 61 to store energy or release energy. The second arc chute 71 is for sliding the first projection 631 therein, and the range of arc length to be set can be selected by those skilled in the art as desired. It should be understood that the shape of the first protrusion 631 is not limited in the present application, as long as the first protrusion 631 can slide in the second arc chute 71 to drive the energy storage disc 70 to rotate. The first projection 631 may be block-shaped or may be a flat hemmed design, for example.
For example, in the present embodiment, the connection line between the sliding start end and the sliding end of the second arc chute 71 and the rotating shaft 40 may form a rotation angle, and the range of the rotation angle may be set by those skilled in the art according to the need, which is not limited herein. For example, in one embodiment of the present application, the rotation angle range value may be between 0 ° and 20 °, such that the energy storage disc 70 and the clutch mechanism rotate with an angle difference of 0 ° to 20 °.
Further, referring to fig. 10 in combination, the clutch mechanism further includes a sleeve 65 sleeved on the rotating shaft 40, the sleeve 65 includes a cylinder 651 and an annular partition plate 652 surrounding an outer wall surface of the cylinder 651, the annular partition plate 652 is used for dividing the cylinder 651 into a first sub-cylinder 653 and a second sub-cylinder 654 which are connected with each other, the energy storage spring 62 is sleeved on an outer wall of the first sub-cylinder 653, and the return spring 61 is sleeved on an outer wall of the second sub-cylinder 654.
It should be noted that, first, the above-mentioned manner of disposing the return spring 61 is only one embodiment of the present application, and in other embodiments, the return spring 61 may be disposed near one side of the energy storage disc 70, where one end of the return spring 61 is connected to the energy storage disc 70, and the other end is connected to the first protrusion 631 on the clutch disc 63 in contact.
Of course, the annular spacer 652 is only one embodiment of the present application, and in other embodiments, two spacers may be provided on opposite sides of the cylinder 651, so long as the cylinder 651 is divided into a first sub-cylinder 653 and a second sub-cylinder 654 that are connected to each other, so that the two cylinders 651 are respectively sleeved with the energy storage spring 62 and the return spring 61.
Referring to fig. 7 and 9 in combination, the first protrusions 631 include two first protrusions 631 on the clutch disc 63, the two first protrusions 631 are spaced apart from each other and disposed on the clutch disc 63, the second arc chute 71 includes two second arc chute 71 on the energy storage disc 70, and the two second arc chute 71 are disposed corresponding to the two first protrusions 631 respectively. In this way, the clutch disc 63 is facilitated to rotate the energy storage disc 70. Of course, in other embodiments, the number of the first protrusions 631 and the corresponding second arc-shaped sliding grooves 71 may be three or four, and the like, and those skilled in the art can select the number according to the needs.
Further, referring to fig. 8, the lock catch tray 64 includes a second body 641, an energy storage push rod 642 and a limiting push rod 643 extending outward from the second body 641, the second body 641 is sleeved on the rotating shaft 40, and the second limiting mechanism 90 can be abutted against the limiting push rod 643. The energy storage push rod 642 is used to push the guide flange 22 to move the guide frame 20. That is, when the side of the energy storage disc 70 near the second limiting mechanism 90 rotates to the side near the first limiting mechanism 80, the energy storage push rod 642 may be used to push the guide flange 22 so as to make the first limiting mechanism 80 abut against the first body 21 and compress the return spring 61 to store energy.
Illustratively, when the rotating shaft 40 is disposed at an intermediate position of the first connecting plate 51 of the bracket 50, that is, the distances from the first limiting mechanism 80 and the second limiting mechanism 90 to the rotating shaft 40 are equal, the guide flange 22 is located between the first limiting mechanism 80 and the rotating shaft 40. At this time, in the present embodiment, the length of the limiting push rod 643 is greater than the length of the energy storage push rod 642, so that the limiting push rod 643 can push the first limiting mechanism 80, and the energy storage push rod 642 can push the guide flange 22 without affecting the first limiting mechanism 80.
Further, referring to fig. 12 in combination, the first limiting mechanism 80 includes a third body 81 and a first baffle 82 that are connected to each other, the first baffle 82 is disposed on a side of the third body 81 away from the bracket 50 and is used for limiting the energy storage disc 70, the third body 81 is hinged on a side of the bracket 50, and an end of the third body 81, which is close to the bracket 50, extends to the trip cavity 211 through the notch 53 of the bracket 50.
Specifically, the third body 81 is hinged to one side of the bracket 50 through a first pin shaft 83, the first limiting mechanism 80 further includes a first baffle 85 connected to the third body 81, a first torsion spring 84 is further sleeved on the first pin shaft 83, one end of the first torsion spring 84 is lapped on the first baffle 85, and the other end of the first torsion spring is lapped with the bracket 50. Thus, due to the first torsion spring 84, the third body 81 is in the trip cavity 211 when in the initial state, and the first torsion spring 84 is in the initial state; when the guide frame 20 moves to abut against the third body 81, the first torsion spring 84 is stressed in a deformed state; when the guide frame 20 is restored to the initial position, the third body 81 is returned to the trip cavity 211, and the first limiting mechanism 80 is rotated to the initial state by the first torsion spring 84. Thus, the first stopper mechanism 80 is easily rotated and reset.
It should be noted that, the direction of the acting force of the first torsion spring 84 is not limited, that is, when the first limiting mechanism 80 rotates counterclockwise, the first torsion spring 84 may be in a deformed state or may be in an elastic release state. In the above example, when the first stopper mechanism 80 rotates counterclockwise, the first torsion spring 84 is in a deformed state. Additionally, in other embodiments, the first torsion spring 84 is in the spring released state when the first stop mechanism 80 is rotated counterclockwise. Specifically, when the third body 81 of the first limiting mechanism 80 is located in the trip cavity 211, the first torsion spring 84 is in a deformed state, referring to fig. 4, in this solution, a protrusion (not shown) is provided on a side of the energy storage disc 70 near the first limiting mechanism 80, and the protrusion can abut against the first limiting mechanism 80 to prevent the first limiting mechanism 80 from rotating under the action of the first torsion spring 84; when the third body 81 of the first limiting mechanism 80 is separated from the trip cavity 211 under the action of the guide frame 20, at this time, the first limiting mechanism 80 can rapidly rotate under the elastic release action of the first torsion spring 84 to limit one side of the energy storage disc 70, which is used for abutting against the first limiting mechanism 80.
It should be appreciated that when the first limiting mechanism 80 rotates counterclockwise, one end of the first torsion spring 84 is overlapped above the first baffle 85 and the other end is overlapped with the bracket 50 when the first torsion spring 84 is in a deformed state. In addition, a notch is formed on one side of the energy storage disc 70, which is used for being abutted against the first limiting mechanism 80, so that the first limiting mechanism 80 is prevented from affecting the normal rotation of the energy storage disc 70 in the energy storage process; when the first limiting mechanism 80 rotates counterclockwise, one end of the first torsion spring 84 is overlapped under the first baffle 85 and the other end is overlapped with the bracket 50 when the first torsion spring 84 is in the elastic release state. In addition, a bump (not shown) is disposed on the side of the energy storage disc 70 for abutting against the first limiting mechanism 80, so as to abut against the first limiting mechanism 80 to prevent the first limiting mechanism 80 from rotating under the action of the first torsion spring 84.
Further, referring to fig. 13 in combination, the second limiting mechanism 90 includes a fourth body 91 and a second baffle 92 that are connected to each other, the second baffle 92 is disposed on a side of the fourth body 91 away from the bracket 50 and is used for limiting the energy storage disc 70, the fourth body 91 is hinged on a side of the bracket 50, and an end of the fourth body 91, which is close to the bracket 50, abuts against the clutch mechanism, so that the second limiting mechanism 90 locks the energy storage disc 70.
Specifically, the fourth body 91 is hinged on one side of the bracket 50 through a second pin shaft 93, the second limiting mechanism 90 further comprises a second baffle table 95 connected with the fourth body 91, a second torsion spring 94 is further sleeved on the second pin shaft 93, one end of the second torsion spring 94 is lapped on the second baffle table 95, the other end of the second torsion spring 94 is lapped with the bracket 50, and the second torsion spring 94 is in a deformation state. Thus, due to the action of the second torsion spring 94, the fourth body 91 abuts on the clutch mechanism in the initial state; when the rotating shaft 40 is rotated, the rotating shaft 40 drives the clutch mechanism to rotate, the clutch mechanism is separated from the fourth body 91, the second torsion spring 94 stores energy and releases, and the second limiting mechanism 90 rotates to release the locking of the energy storage disc 70. Thus, the second stopper mechanism 90 is easily rotated and reset.
It should be noted that, the direction of the acting force of the second torsion spring 94 is not limited, that is, when the second limiting mechanism 90 rotates clockwise, the second torsion spring 94 may be in a deformed state or may be in an elastic release state. In the above example, when the second stopper mechanism 90 rotates clockwise, the second torsion spring 94 is in the elastic release state. Additionally, in other embodiments, the second torsion spring 94 may also be in a deformed state when the second stop mechanism 90 is rotated clockwise. Specifically, when the fourth body 91 of the second limiting mechanism 90 abuts against a side of the clutch mechanism for abutting against the second limiting mechanism 90, the second torsion spring 94 is in an initial state; when the rotating shaft 40 rotates clockwise, one side of the clutch mechanism, which is abutted against the second limiting mechanism 90, is separated from the fourth body 91 of the second limiting mechanism 90 under the driving of the rotating shaft 40, the rotating shaft 40 continues to rotate, the clutch mechanism drives the energy storage disc 70 to rotate, at this time, one end, abutted against the second limiting mechanism 90, of the energy storage disc 70 pushes the second limiting mechanism 90 to rotate clockwise, at this time, the second torsion spring 94 deforms, and one side, abutted against the second limiting mechanism 90, of the energy storage disc 70 is separated from the second limiting mechanism 90, so that the energy storage disc 70 stores energy. In addition, the energy storage disc 70 has a protrusion (not shown) for limiting the second limiting mechanism 90, so as to prevent the second limiting mechanism from restoring to the initial position under the action of the second torsion spring 94 to affect the energy storage release of the energy storage disc 70; when the energy storage disc 70 stores energy and releases, the energy storage disc 70 rotates anticlockwise, when the side of the energy storage disc 70, which is used for being abutted against the second limiting mechanism 90, rotates to the initial position, the second limiting mechanism 90 loses the limitation of the protruding block, the second torsion spring 94 elastically releases and drives the second limiting mechanism 90 to rotate anticlockwise to restore the initial position, and at this time, the second limiting mechanism 90 limits the side of the energy storage disc 70, which is used for being abutted against the second limiting mechanism 90.
It should be understood that when the second limiting mechanism 90 rotates clockwise, the second torsion spring 94 is in the elastic release state, one end of the second torsion spring 94 is overlapped above the second baffle table 95, and the other end is overlapped with the bracket 50; when the second limiting mechanism 90 rotates clockwise, one end of the second torsion spring 94 is overlapped under the second baffle 95, and the other end is overlapped with the bracket 50 when the second torsion spring 94 is in a deformed state. In addition, a bump (not shown) is disposed on a side of the energy storage disc 70, which is used to abut against the second limiting mechanism 90, so as to prevent the second limiting mechanism 90 from rotating counterclockwise under the action of the second torsion spring 94 to affect the energy storage release of the energy storage disc 70.
The working principle of the remote power-off device provided by the embodiment is as follows:
at the initial state: referring to fig. 4 again, the fourth body 91 of the second limiting mechanism 90 abuts against the limiting push rod 643 of the locking disc 64, and the second baffle 92 of the second limiting mechanism 90 limits and locks the energy storage disc 70, so that the energy storage disc 70 cannot rotate and the clutch switch cannot be pulled;
In the energy storage state: referring to fig. 5 again, when the rotating shaft 40 rotates in the first direction (i.e. rotates clockwise), the lock catch disc 64 and the clutch disc 63 rotate along with the rotating shaft 40, the limit push rod 643 of the lock catch disc 64 is separated from the fourth body 91 of the second limit mechanism 90, and the second limit mechanism 90 rotates, so that the energy storage disc 70 is unlocked; the rotating shaft 40 continues to rotate along the first direction, the clutch disc 63 drives the energy storage disc 70 to rotate, and the energy storage spring 62 stores energy; when the energy storage push rod 642 of the lock catch disc 64 rotates to the position of the guide folded edge 22 of the guide frame 20, the energy storage push rod 642 pushes the guide folded edge 22 to slide in the first chute 54 of the bracket 50, so that the guide frame 20 moves to a position (at this time, the driving mechanism 10 is pushed to reset), the third body 81 of the first limiting mechanism 80 is separated from the trip cavity 211 and is abutted against the surface of the first body 21 of the guide frame 20, and the first limiting mechanism 80 rotates, so that the first baffle 82 limits the energy storage disc 70; when the rotation of the rotating shaft 40 in the first direction is stopped, the energy storage spring 62 releases the energy storage, and the rotating shaft 40 rotates in the second direction (i.e. anticlockwise rotation), but due to the limitation of the first baffle 82, the energy storage disc 70 abuts against the first baffle 82 to limit the locking of the energy storage disc 70, and due to the sliding angle difference between the energy storage disc 70 and the clutch disc 63, the energy storage push rod 642 of the lock catch disc 64 is separated from the guide flange 22.
Upon receipt of the power down signal: the driving mechanism 10 acts, the driving part of the driving mechanism 10 pops up, and then the guide frame 20 is driven to move, at the moment, the third body 81 of the first limiting mechanism 80 rotates to enter the tripping cavity 211, the energy storage disc 70 loses the limit of the first baffle 82, the energy storage disc 70 is unlocked, the energy storage of the energy storage spring 62 is released, the energy storage disc 70 rotates under the action of the energy storage spring 62, the linkage rod 30 is pulled, and the linkage rod 30 pulls the isolating switch cut-off circuit; after the energy storage disc 70 rotates in place, the latch disc 64 pushes the fourth body 91 of the second limiting mechanism 90 to rotate, so that the fourth body 91 rotates to the position above the latch disc 64, the energy storage disc 70 is locked by the second baffle 92 of the second limiting mechanism 90, and at this time, the linkage rod 30 cannot pull the energy storage disc 70 to rotate.
Illustratively, in this embodiment, the remote power-off device further includes a housing including a mounting base 56, a mounting cover 57 covering the mounting base 56, and a signal jack provided on the mounting cover 57 with a signal insert 58, the signal insert 58 being electrically connected to the drive mechanism 10.
In addition, in the present application, an operation handle 59 is provided on the rotation shaft 40 in order to facilitate the rotation of the operation shaft 40.
The application also provides a remote power-off system which comprises the isolating switch and the remote power-off device, wherein the remote power-off device is connected with the isolating switch and is used for controlling the connection and disconnection of the isolating switch. Because the structure and the beneficial effects of the remote power-off device are described and illustrated in detail above, the detailed description is omitted.
The above description is only of alternative embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The remote power-off device is characterized by comprising a driving mechanism, a guide frame, a linkage rod, a support, a rotating shaft penetrating through the support, a clutch mechanism and an energy storage disc which are sequentially sleeved on the rotating shaft, and a first limit mechanism and a second limit mechanism which are respectively hinged on two sides of the support, wherein one end of the linkage rod is connected with the energy storage disc, and the other end of the linkage rod is connected with an isolating switch;
The guide frame comprises a first body and a guide folded edge which are connected with each other, the first body is provided with a tripping cavity, one end of the first limiting mechanism penetrates through a notch of the support to extend to the tripping cavity, and a first chute is arranged at the position of the support corresponding to the guide folded edge;
The clutch mechanism is fixedly connected with the rotating shaft, the energy storage disc is in sliding connection with the clutch mechanism, so that the clutch mechanism drives the energy storage disc to rotate along with the rotating shaft, a reset spring and an energy storage spring are sleeved on the clutch mechanism respectively, one end of the reset spring is fixedly connected with the bracket, the other end of the reset spring is in sliding connection with the bracket, one end of the energy storage spring is fixedly connected with the energy storage disc, and the other end of the energy storage spring is fixedly connected with the bracket; the second limiting mechanism can be abutted with the clutch mechanism to lock the rotation of the energy storage disc;
The rotating shaft rotates along a first direction to enable the clutch mechanism to be separated from and abutted against the second limiting mechanism, when one side of the energy storage disc, which is close to the second limiting mechanism, rotates to be close to one side of the first limiting mechanism, one side of the clutch mechanism, which is close to the second limiting mechanism, rotates to be close to one side of the guide frame and pushes the guide folded edge, so that the guide frame drives the driving mechanism to reset, and the first limiting mechanism is separated from the tripping cavity and is abutted against the first body to compress the reset spring to store energy; when the reset spring releases energy storage, the rotating shaft rotates along a second direction, the first limiting mechanism locks the energy storage disc, the clutch mechanism is separated from the guide folded edge, and the first direction is opposite to the second direction;
The first body comprises a guide plate and a reset folding edge extending outwards from one end of the guide plate, the tripping cavity is arranged on the guide plate, the reset folding edge and the guide folding edge are respectively positioned at two adjacent ends of the guide plate, and the driving mechanism is used for driving the reset folding edge to move so that the guide folding edge slides along a first chute of the bracket;
the support comprises a first connecting plate and two side plates connected to two ends of the first connecting plate respectively, the first connecting plate is sleeved on the rotating shaft, the first limiting mechanism and the second limiting mechanism are respectively hinged on the two side plates, the first sliding chute is arranged on the first connecting plate, and a notch is formed in the joint of the side plate close to one side of the first limiting mechanism and the first connecting plate;
The clutch mechanism comprises a clutch disc and a lock catch disc which are respectively connected to the rotating shaft, the reset spring and the energy storage spring are respectively sleeved on the rotating shaft and positioned between the clutch disc and the lock catch disc, wherein the energy storage spring is arranged between the energy storage disc and the reset spring, a first arc-shaped chute is arranged on the support, the first arc-shaped chute is concentrically arranged with the rotating shaft, one end of the reset spring is fixedly connected with the support, the other end of the reset spring passes through the lock catch disc and is slidably connected with the first arc-shaped chute, a first bulge is arranged on one surface of the clutch disc, which is close to the energy storage disc, a second arc-shaped chute is arranged at the position, which corresponds to the first bulge, the second arc-shaped chute is concentrically arranged with the rotating shaft, and one end, which is close to the support, of the second limiting mechanism is abutted to the lock catch disc;
The first limiting mechanism comprises a third body and a first baffle which are connected with each other, the first baffle is arranged on one side, far away from the bracket, of the third body and is used for limiting the energy storage disc, the third body is hinged to one side of the bracket, and one end, close to the bracket, of the third body extends to the tripping cavity through a notch of the bracket;
The second limiting mechanism comprises a fourth body and a second baffle which are connected with each other, the second baffle is arranged on one side, away from the bracket, of the fourth body and is used for limiting the energy storage disc, the fourth body is hinged to one side of the bracket, and one end, close to the bracket, of the fourth body is abutted to the clutch mechanism, so that the second limiting mechanism locks the energy storage disc.
2. The remote power-off device according to claim 1, wherein the clutch mechanism further comprises a sleeve sleeved on the rotating shaft, the sleeve comprises a cylinder body and an annular partition plate surrounding the outer wall surface of the cylinder body, the annular partition plate is used for dividing the cylinder body into a first sub-cylinder body and a second sub-cylinder body which are connected with each other, the energy storage spring is sleeved on the outer wall of the first sub-cylinder body, and the reset spring is sleeved on the outer wall of the second sub-cylinder body.
3. The remote power-off device according to claim 1, wherein the first protrusions are arranged on the clutch disc in a spaced manner, the second arc-shaped sliding grooves are arranged on the energy storage disc in a spaced manner, and the two second arc-shaped sliding grooves are arranged corresponding to the two first protrusions respectively.
4. The remote power-off device according to claim 1, wherein the lock catch disc comprises a second body, an energy storage push rod and a limit push rod, wherein the energy storage push rod and the limit push rod extend outwards from the second body, the second body is sleeved on the rotating shaft, and the second limit mechanism can be abutted with the limit push rod;
The energy storage push rod can be used for pushing the guide folded edge, so that the first limiting mechanism abuts against the first body and compresses the reset spring to store energy.
5. The remote power-off device according to claim 1, wherein the third body is hinged to one side of the support through a first pin shaft, the first limiting mechanism further comprises a first baffle table connected with the third body, a first torsion spring is further sleeved on the first pin shaft, one end of the first torsion spring is lapped on the first baffle table, and the other end of the first torsion spring is lapped on the support.
6. The remote power-off device according to claim 1, wherein the fourth body is hinged to one side of the support through a second pin shaft, the second limiting mechanism further comprises a second baffle table connected with the fourth body, a second torsion spring is sleeved on the second pin shaft, one end of the second torsion spring is lapped on the second baffle table, and the other end of the second torsion spring is lapped on the support.
7. A remote power-off system comprising a disconnector and a remote power-off device according to any one of claims 1 to 6, said remote power-off device being connected to said disconnector, said remote power-off device being adapted to control the connection and disconnection of said disconnector.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211376443U (en) * | 2020-03-04 | 2020-08-28 | 上海良信电器股份有限公司 | Clutch mechanism and remote power-off device |
| CN211376444U (en) * | 2020-03-04 | 2020-08-28 | 上海良信电器股份有限公司 | Remote power-off device and power-off system thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1308150C (en) * | 1986-08-08 | 1992-09-29 | Lawrence W. Lazar | Switchgear operating mechanism |
| KR200419048Y1 (en) * | 2006-03-17 | 2006-06-16 | 엘에스산전 주식회사 | Circuit breaker |
| CN102867706B (en) * | 2012-09-19 | 2015-03-25 | 浙江中凯科技股份有限公司 | Tripping device for circuit breaker |
| CN204464199U (en) * | 2014-12-10 | 2015-07-08 | 上海电器科学研究院 | A Mechanism for Preventing Misoperation of Energy Storage Type Electric Operating Mechanism |
| CN208596649U (en) * | 2018-05-07 | 2019-03-12 | Abb股份公司 | Stored-energy operating mechanisms for circuit breakers and state control devices, latching devices, housings and motor support mechanisms for stored-energy operating mechanisms |
| CN109637903A (en) * | 2018-12-31 | 2019-04-16 | 杭州天启钛智能科技有限公司 | A kind of intelligent breaker |
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| CN211376443U (en) * | 2020-03-04 | 2020-08-28 | 上海良信电器股份有限公司 | Clutch mechanism and remote power-off device |
| CN211376444U (en) * | 2020-03-04 | 2020-08-28 | 上海良信电器股份有限公司 | Remote power-off device and power-off system thereof |
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