CN205384996U - Control and protection switch electric appliance - Google Patents
Control and protection switch electric appliance Download PDFInfo
- Publication number
- CN205384996U CN205384996U CN201620197761.5U CN201620197761U CN205384996U CN 205384996 U CN205384996 U CN 205384996U CN 201620197761 U CN201620197761 U CN 201620197761U CN 205384996 U CN205384996 U CN 205384996U
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- handle
- control
- trigger member
- switching device
- snap close
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Abstract
The utility model discloses a control and protection switch electric appliance, include circuit breaker and the intelligent control device who is located circuit breaker one side, the circuit breaker includes handle and first dropout actuating mechanism. Electromagnetism release among the first dropout actuating mechanism, when short -circuit current appeared in the circuit breaker internal electric circuit, quick separating brake was realized to electromagnetism release drive circuit breaker to realize short -circuit protection reliable, quick to the circuit breaker, effectual circuit breaker through first dropout actuating mechanism. Intelligent control device includes control assembly and second dropout actuating mechanism, and control assembly exceedes the setting value at the electric current, and perhaps the magnitude of voltage surpasss or when being less than the setting value, drive second dropout actuating mechanism motion and trigger the release and make circuit breaker dropout separating brake, protections such as realizing the excessive pressure of circuit breaker, overflow, be under -voltage. Therefore, the utility model discloses a control and protection switch electric appliance both can provide the excessive pressure for the circuit, overflow, undervoltage protection, can provide reliable, quick, effectual short -circuit protection for the circuit again.
Description
Technical field
The utility model discloses a kind of control and protective switching device, belong to Low Voltage Electrical Apparatus.
Background technology
At Low Voltage Electrical Apparatus, electrical apparatus release can be connected or form one with breaker mechanical, is a kind of device for making chopper automatically disconnect.The kind of electrical apparatus release includes: magnetictrip, thermal trip and electronic trip unit.Magnetictrip can only provide short-circuit protection, and the life-span is long, affected by environment little；Thermal trip action error is relatively larger, but stable performance.Existing major part chopper only have magnetictrip and thermal trip, along with the development of integrated chip, electronic trip unit with its high sensitivity, action accurately, scalable, can install that communication module remotely controls, the advantage such as not affected by environment is increasingly becoming the preferred accessory of chopper additional.
The control and protective switching device of prior art is frequently with single electronic trip unit or single magnetic release.The control and protective switching device adopting single magnetic release cannot provide overload protection.
And single electronic trip unit, when short circuit occurs in circuit, the electric current that moment passes through is very big, now require chopper can disconnecting circuit rapidly, to ensure the safety of electrical equipment and personnel.Electronics is threaded off owing to the process such as transmission calculating of information needs to expend the regular hour, when there is short circuit, it is impossible to timely respond to and drive chopper disconnecting circuit.
Utility model content
This utility model to solve control and protective switching device in prior art and not be provided that overload protection or the technical problem that chopper can not be driven in time to disconnect when there is short circuit current, provides a kind of for this and can either provide overload protection, the control and protective switching device that can quickly make chopper disconnect when there is short circuit again.
The control and protective switching device that this utility model provides, including: chopper and the intelligent controlling device being positioned at described chopper side；
It is provided with the second dropout driving mechanism in described intelligent controlling device and controls assembly,
Described control assembly, for obtaining current value in circuit or magnitude of voltage in real time, and current value more than current setting value or magnitude of voltage more than/less than voltage setting value time, control the second dropout driving mechanism and drive described trigger member action and then make circuit breaker tripping；
The first dropout driving mechanism it is provided with in described chopper, described first dropout driving mechanism, including magnetictrip, magnetic sheet, after circuit is short-circuited, described magnetictrip produces magnetically-actuated magnetic sheet and moves to trigger position from initial position, drives trigger member action and then triggers the electrical apparatus release in chopper and make circuit breaker tripping.
Preferably, control and protective switching device of the present utility model,
It is provided with pressing piece between described magnetic sheet and described trigger member, described magnetic sheet drives described pressing piece to do rectilinear motion when rotating, and then drive trigger member motion, being additionally provided with the 4th elastic component on described pressing piece, described 4th elastic component applies the power away from described trigger member or the component of power to described pressing piece.
Preferably; control and protective switching device of the present utility model; described pressing piece includes transverse slat and the riser fixing with the described transverse slat other end that one end coordinates with described magnetic sheet; the other end of described riser is for contacting with described trigger member and driving described trigger member to move; become to have spring mounting groove in the middle of described transverse slat; described riser is hooked in described second elastic component one end, and the other end is fixed.
Preferably; control and protective switching device of the present utility model; described trigger member has rod body; there is, towards the direction bending forming near chopper, the first extension coordinated with described pressing piece described rod body one end; middle part extends to form the second extension coordinated with described second dropout driving mechanism to side, and the other end has the 3rd extension driving electrical apparatus release motion.
Preferably, control and protective switching device of the present utility model, described trigger member is provided with the first elastic component described in the first elastic component and applies to make elastic force or the elastic force component that the circuit breaker tripping direction of motion is contrary to described trigger member.
Preferably, control and protective switching device of the present utility model, also include locating part, be arranged on described magnetic sheet by the direction of motion of described magnetictrip effect, for stopping that after described magnetic sheet moves to trigger position described magnetic sheet is rotated further.
Preferably; control and protective switching device of the present utility model; described second dropout driving mechanism; including the second electromagnet; actuator; described second electromagnet produces actuator described in magnetic force moving after being controlled by the controller and being energized, and described actuator moves between the first position and the second position and drives described trigger member in the process moving to the second position from primary importance.
Preferably, control and protective switching device of the present utility model, also include restoring board, described restoring board, after electrical apparatus release releases and threads off, is used for promoting described actuator to return primary importance.
Preferably, control and protective switching device of the present utility model,
The handle of described chopper is connected with electrical apparatus release by second connecting rod, when described handle turns to closing position, rotational angle required when the rotational angle of described handle is coplanar more than the centrage of the pivotal axis at the two ends of described second connecting rod Yu the rotating shaft of handle, forms self-locking and makes handle, electrical apparatus release be locked in relevant position；Being arranged with handle spring on the rotating shaft of described handle, handle spring applies to go to the power of open position or the component of power to described handle.
Preferably, control and protective switching device of the present utility model,
Described electrical apparatus release, including: rotating turret, snap close, tripping, snap close is arranged on rotating turret by the 5th rotating shaft and can around the 5th axis of rotation, and tripping and rotating turret are fixed on inner fixed stand by the second common rotating shaft；Snap close is connected with described handle by second connecting rod；Tripping has the linkage status locked together with described snap close and the released state separated with described snap close；
Described trigger member is driven by the first dropout driving mechanism or the second dropout driving mechanism and makes described tripping and described snap close transform to released state from linkage status, and drive described handle to turn to open position from closing position by described second connecting rod, and then drive dynamic iron core away from static iron core；Being provided with the first elastic component in described trigger member, described first elastic component applies to make elastic force or the elastic force component that the circuit breaker tripping direction of motion is contrary to described trigger member.
Preferably, control and protective switching device of the present utility model,
Described tripping has plate body, and is molded over the cylindricality installation portion bottom described plate body, and described plate body forms locked groove；Described
Cylindricality installation portion radially forms extension, and described extension forms the drive hole parallel with the axis hole of cylindricality installation portion；
Described snap close includes snap close body and is positioned at the snap close side plate of described snap close body both sides, and described snap close body is provided with the locking projections for coordinating with locked groove on tripping side, forms the reinforcement for reinforcing tripping protruding in the middle part of described snap close body；Described snap close side plate forms rotating shaft installing hole and the second connecting rod installing hole stretched into for described second connecting rod.
Preferably, control and protective switching device of the present utility model, described rotating turret is by linkage and power transmission shaft linkage；
Described linkage includes: the second lock link that one end and power transmission shaft are fixing and the 3rd lock link that the other end of described second lock link is all coaxially disposed and the first lock link, the other end of described 3rd lock link is connected with described rotating turret, and the other end of described first lock link is rotatably arranged on described inner fixed stand.
Preferably, control and protective switching device of the present utility model,
Also including energy-saving mechanism, described energy-saving mechanism includes the pressing piece arranged with the linkage of dynamic iron core, the microswitch of control coil connecting and disconnecting of the circuit, and when dynamic iron core contacts with static iron core, described pressing piece pressing microswitch makes coil blackout.
Preferably, control and protective switching device of the present utility model,
Described intelligent controlling device, also includes: plectrum, is arranged on intelligent controlling device shell, and for opening or closing control device controls the function of the second dropout driving mechanism action, and plectrum side has projection；
Described handle forms lockhole, when handle is in open position, stirs described plectrum and can make in the lockhole that projection stretches on handle, thus stoping handle to rotate.
This utility model has the advantage that relative to prior art
1. control and protective switching device disclosed in this utility model, described chopper includes handle and the first dropout driving mechanism.Described handle has closing position and open position, the combined floodgate of corresponding chopper and separating brake.The first dropout driving mechanism it is provided with in described chopper; described first dropout driving mechanism; including magnetictrip and magnetic sheet; described magnetictrip is made up of the wire of major loop in chopper; after circuit is short-circuited; described magnetictrip produces magnetically-actuated magnetic sheet and moves to trigger position from initial position; drive described trigger member action and then trigger the electrical apparatus release in chopper and make chopper rapid-releasing separating brake, realizing chopper reliably thereby through the first dropout driving mechanism, short-circuit protection fast and effectively.
Simultaneously; intelligent controlling device is set; there is control assembly and the second dropout driving mechanism; control assembly and exceed setting value at electric current; or when magnitude of voltage exceeds or falls below setting value; the second dropout driving mechanism motion is driven to trigger electrical apparatus release and make circuit breaker tripping separating brake, it is achieved the overvoltage of chopper, excessively stream, under-voltage etc. is protected.Therefore, control and protective switching device disclosed in this utility model, both can provide overvoltage for circuit, crossed stream, the common protection such as under-voltage, and can provide reliably for circuit again, short-circuit protection fast and effectively.
2. control and protective switching device disclosed in this utility model; trigger member body is rod; one end of the described rod body rod of trigger member forms the first extension coordinated with described pressing piece; the other end has the 3rd extension driving electrical apparatus release motion, and centre extends to form the second extension that the actuator with described second dropout driving mechanism coordinates to side.The pressing piece of the first dropout driving mechanism is moved to trigger position by initial position and the first extension is exerted a force, or the actuator of the second dropout driving mechanism is moved to the second position by primary importance and the second extension is exerted a force, then trigger member Forced rotation, the 3rd extension drives the electrical apparatus release of chopper.By the setting of the first extension, the second extension and the 3rd extension, making trigger member form rational structure, trigger member can trigger electrical apparatus release under the drive of the first dropout driving mechanism or the second dropout driving mechanism and complete to thread off.First dropout driving mechanism and the second dropout driving mechanism are used in conjunction with trigger member and complete to thread off, and save number of components, have saved space.
3. control and protective switching device disclosed in this utility model; described locating part to prevent the second elastic component elastic deformation from exceeding allowed band and reduction of service life for the anglec of rotation of magnetic sheet after limiting short circuit, and is prevented from magnetic sheet contact wire and produces to damage to magnetic sheet.
4. control and protective switching device disclosed in this utility model, described handle has auto-lock function when closing position.Described handle connects snap close by second connecting rod, handle is when closing position, rotational angle required when the rotational angle of handle is coplanar more than the centrage of the pivotal axis at the two ends of second connecting rod Yu the rotating shaft of handle, namely handle turns in the process of closing position, when the pivotal axis at second connecting rod two ends is coplanar with rotating shaft, this is the critical localisation of handle divide-shut brake, open position can be returned when handle is not rotated up to this position, and handle is rotated further and exceedes this critical localisation and get to closing position, the now three-point shape triangularity of the pivotal axis at second connecting rod two ends and rotating shaft.It is positioned at second connecting rod during closing position to apply to continue the power away from open position to handle, such that it is able to the power returning open position that opposing the first drive rod applies to handle, achieve self-locking, therefore can stop and cause that because of coil blackout dynamic iron core is away from static iron core, makes iron core and static iron core keep in touch.Described tripping and snap close from linkage status be converted to released state time, second connecting rod is driven by snap close and causes handle disequilibrium, and handle unlocks and turns to open position under the combined effect of second connecting rod and handle spring, and chopper realizes separating brake.Owing to handle has auto-lock function, after coil blackout, described dynamic iron core still can keep in touch with described static iron core, and the stationary contact of the movable contact on circuit breaker cradle body and chopper still keeps closing a floodgate, it is achieved thereby that the energy-saving and emission-reduction of control and protective switching device.
5. control and protective switching device disclosed in this utility model also includes energy-saving mechanism, and described energy-saving mechanism, after dynamic iron core contacts static iron core, presses microswitch by press-side and realizes the power-off of coil is controlled, it is achieved the energy-saving and emission-reduction of chopper.Now owing to handle is locked in closing position, therefore dynamic iron core can remain in that, in the cold situation of coil, the state contacted with static iron core, makes the movable contact of chopper keep adhesive with stationary contact.Only at the first dropout driving mechanism, the second dropout driving mechanism drive lower or to handle apply external force when, the locking of handle is destroyed just can turn to open position.
6. control and protective switching device disclosed in this utility model also includes plectrum, for opening or close the function of intelligent controlling device, after closing the function of intelligent controlling device, chopper overvoltage, under-voltage, cross stream when do not carry out separating brake.Handle, when open position, makes projection thereon stretch in the lockhole of handle, thus stoping handle to rotate after described plectrum is dialed to relevant position, it is prevented that handle turns in circuit maintenance closing position initiation electrification by mistake.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model detailed description of the invention or technical scheme of the prior art, the accompanying drawing used required in detailed description of the invention or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic appearance of control and protective switching device of the present utility model；
Fig. 2 is chopper schematic diagram during control and protective switching device of the present utility model combined floodgate；
The position view of trigger member when Fig. 3 is control and protective switching device of the present utility model combined floodgate；
Fig. 4 is structural representation during control and protective switching device separating brake of the present utility model；
Fig. 5 is the internal structure schematic diagram of the chopper of control and protective switching device of the present utility model；
Fig. 6 is the part-structure schematic diagram of the chopper of control and protective switching device of the present utility model；
The schematic diagram of electromagnetic mechanism when Fig. 7 is control and protective switching device of the present utility model combined floodgate；
Fig. 8 is the first dropout driving mechanism of control and protective switching device of the present utility model, the second dropout driving mechanism；
Fig. 9 is the structural representation of the controller of control and protective switching device of the present utility model；
Figure 10 is the buckle structure schematic diagram of control and protective switching device of the present utility model；
Figure 11 is the tripping structural representation of control and protective switching device of the present utility model；
Figure 12 is the axonometric chart of the trigger member of control and protective switching device of the present utility model；
Figure 13 is the front view of Figure 12；
Accompanying drawing labelling: A-chopper；A1-case for circuit breaker；A2-arc-control device；A3-binding post；
B-intelligent controlling device；B1-plectrum；B11-is protruding；B2-intelligent controlling device shell；
11-tripping；111-plate body；112-cylindricality installation portion；1111-locked groove；
113-extension；1131-drive hole；
12-snap close；121-snap close body；122-locking projections；123-snap close side plate；
1231-rotating shaft installing hole；1232-second connecting rod installing hole；124-strengthens projection；
21-moves iron core；22-coil；23-static iron core；
31-trigger member；311-extension rod；312-the 3rd extension；313-the second extension；
314-the first extension；315-rotating shaft；
32-the first elastic component；33-handle spring；34-the 3rd elastic component；
41-handle；411-lockhole；42-second connecting rod；43-the first drive rod；
51-the first lock link；52-the second lock link；53-the 3rd lock link；54-tumbler；
61-inner fixed stand；62-stake body；
71-power transmission shaft；72-the second rotating shaft；73-rotating shaft；74-the 4th rotating shaft；75-the 5th rotating shaft
81-pressing piece；811-press-side；812-restoring board；
91-arcuate socket；
101-magnetictrip；102-the 4th elastic component；103-locating part；104-magnetic sheet；
105-pressing piece；1051-mounting groove；107-actuator；108-the second electromagnet；
109-controller.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described, it is clear that described embodiment is a part of embodiment of this utility model, rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection.
As long as just can be combined with each other additionally, technical characteristic involved in this utility model difference embodiment disclosed below does not constitute conflict each other.
Embodiment
The present embodiment provides a kind of control and protective switching device, as it is shown in figure 1, include chopper A and be positioned at the intelligent controlling device B of chopper A side.
Described chopper A includes: case for circuit breaker A1, inner fixed stand 61, binding post A3, handle 41, electromagnetic operating mechanism, stake body 62, electrical apparatus release, the first dropout driving mechanism, arc-control device A2；Described electrical apparatus release includes: rotating turret 54, snap close 12, tripping 11 and trigger member 31.Described intelligent controlling device B includes: the second dropout driving mechanism, control assembly, and the energy-saving mechanism that also can increase further.
Intelligent controlling device includes the controller 109 for obtaining voltage and/or electric current, and controller 109 decides whether to start the second dropout driving mechanism and drives trigger member 31 to make circuit breaker tripping after the signal received is analyzed process.Thus, control and protective switching device utilizes the controller of digital integration to realize the intelligence of chopper is threaded off controlling.Controller is driven trigger member 31 by the second dropout driving mechanism after can monitoring the various faults situation in circuit.But when there is short circuit current, controller 109 collects, analyze, process data all needs to expend the time of more than 20ms, if transient current is very big, controller cannot respond driving breaker open operation in time and disconnect, thus initiation electrification.Chopper arranges the first dropout driving mechanism, access under the effect of the big electric current when short circuit of the magnetictrip in circuit, produce rapidly enough powerful magnetically-actuated magnetic sheet and move to trigger position from initial position, described magnetic sheet one end is connected on pressing piece, trigger member 31 is made to move by pressing piece, so that circuit breaker tripping, the whole process of dropout is less than 10ms.The the first dropout driving mechanism arranging electromagnetic trip mode can provide short-circuit protection quick, reliable, effective for chopper.Therefore, above-mentioned control and protective switching device, both can provide overvoltage for circuit, crossed stream, the common protection such as under-voltage, and can provide reliably for circuit again, short-circuit protection fast and effectively.
Specifically, it is fixed with inner fixed stand 61 inside case for circuit breaker A1；
Binding post A3, quantity is four, lays respectively at the both sides of case for circuit breaker A1, two binding post A3 of side be connected with electricity supply cable enter electricity end, two binding post A3 of opposite side are and go out the current output terminal that electrical cables is connected, and chopper is connected in circuit by wire by binding post A3；
Deforming as one, the binding post A3 quantity of chopper can be other even number, such as 2,6,8 etc., it is achieved the control of overall power distribution system is protected.
Described handle 41, as shown in Figure 2, it is arranged on rotatable handle axle 73 and can rotate around it closing position and open position, can under external force or turn to open position from closing position under the control of described intelligent controlling device B, the movable contact driving chopper separates with stationary contact and makes breaker open operation, closing position can be turned to from open position under external force again, drive the movable contact of chopper to contact with stationary contact and make breaker closing.Therefore, separating brake and the combined floodgate of corresponding chopper distinguished by described handle 41 when being positioned at open position with closing position.
Handle 41 connects electrical apparatus release by second connecting rod 42, when described handle 41 turns to closing position, as shown in Figure 2, rotational angle required when the rotational angle of handle 41 is coplanar more than the centrage of the pivotal axis at the two ends of described second connecting rod 42 Yu the rotating shaft 73 of handle 41, namely handle 41 turns in the process of closing position, when the pivotal axis at second connecting rod 42 two ends is coplanar with rotating shaft 73, this is the critical localisation of handle divide-shut brake, if open position can be returned when handle 41 is not rotated up to this position, and handle 41 is rotated further and exceedes this critical localisation and get to closing position, the now pivotal axis at second connecting rod two ends and the rotating shaft 73 three-point shape triangularity on the longitudinal section of Fig. 2.It is positioned at second connecting rod 42 during closing position to apply to continue the power away from open position to handle 41, such that it is able to the power returning open position that opposing the first drive rod 43 applies to handle 41, handle achieves self-locking, therefore can stop and cause that because of coil 22 power-off dynamic iron core 21 is away from static iron core 23, makes iron core 21 and static iron core 23 keep in touch.Above-mentioned circuit breaker operation mechanism, connects handle 41 and electrical apparatus release by arranging second connecting rod 42, and realizes self-locking by arranging closing position, take full advantage of the parts of former chopper so that the structure of whole circuit breaker operation mechanism is simpler, reliable.3rd rotation axle 73 is arranged with one end and is resisted against the second rotating shaft 72, the horizontal handle spring 33 penetrating handle 41 of the other end, handle 41 to closing position rotate time, external force overcomes the elastic force of handle spring 33 that handle 41 is turned to closing position, and handle spring 33 stores energy.When electrical apparatus release is by the first dropout driving mechanism or the second dropout driving mechanism triggered motion, second connecting rod 42 acts on lower handle 41 disequilibrium, described handle 41 self-locking releasing, electrical apparatus release applies to go to the power of open position or the component of power to handle 41 by second connecting rod 42, apply to go to the power of open position or the component of power to handle 41 in conjunction with described handle spring 33, therefore, described 41 successfully open position can be turned to from closing position under the driving of electrical apparatus release.Described handle spring 33 is preferably torsion spring.
Described electromagnetic operating mechanism, as shown in Figure 5, Figure 7, including coil 22, dynamic iron core 21 and static iron core 23.The described handle 41 in cam structure connects described dynamic iron core 21 by head rod 43, when described handle 41 turns to closing position, coil 22 produces to make iron core 21 near the magnetic force of static iron core 23, cam handle 41 drives head rod 43 to make iron core 21 near static iron core 23, therefore, under the cam and the coil 22 complementary effect of magnetic force of handle 41, described dynamic iron core 21 is near static iron core 23.When described handle 41 turns to open position, handle 41 drives first connecting rod 43 to make iron core 21 away from static iron core 23.
As shown in Fig. 4, Fig. 7, in described chopper A, it is additionally provided with stake body 62.Described stake body 62 is fixed with the 4th rotating shaft 74 and power transmission shaft 71, one end is provided with the movable contact coordinated with stationary contact, described 4th rotating shaft 74 is fixed on inner fixed stand 61, described power transmission shaft 71 is installed on the arcuate socket 91 of inner fixed stand 61, described stake body 62 can rotate around the 4th rotating shaft 74, power transmission shaft 71 thereon rotates around the 4th rotating shaft 74 in arcuate socket 91 simultaneously, and the movable contact of chopper is closer or far from stationary contact.When chopper needs to close a floodgate, on handle 41, it is rotated to closing position from open position by External Force Acting, head rod 43 and make iron core 21 near static iron core 23, first connecting rod 43 presses power transmission shaft 71 simultaneously and makes described stake body 62 rotate counterclockwise around the 4th rotating shaft 74 as shown in Figure 7, and then make the movable contact on stake body 62 near the stationary contact of chopper, to realize the combined floodgate of chopper.Stake body 62 is fixed with the 3rd elastic component 34 near the other end of the 4th rotating shaft 74, the other end of described 3rd elastic component 34 is fixed on inner fixed stand 61, External Force Acting on handle 41 by breaker closing time, the 3rd elastic component 34 because be stretched generation deformation and store energy.During breaker open operation, handle 41 is made to turn to open position from closing position by external force or electrical apparatus release, and drive dynamic iron core 21 away from static iron core 23,3rd elastic component 34 applies to make the component of the movable contact power away from stationary contact or power to stake body 62 simultaneously, and handle 41 coordinates so that chopper realizes separating brake quickly and efficiently with the 3rd elastic component 34.
As in figure 2 it is shown, first connecting rod 43 has arc notch, during breaker closing, the arc notch of first connecting rod 43 mates with power transmission shaft 71, so that handle 41 presses power transmission shaft 71 by first connecting rod 43；And when handle 41 turns to open position, handle 41 drives dynamic iron core 21 away from static iron core 23, drive first connecting rod 43 to move away from described power transmission shaft 71 simultaneously, thus giving the space that the power transmission shaft 71 installed on stake body 62 rotates counterclockwise around the 4th rotating shaft 74, described stake body 62 is successfully rotated counterclockwise, movable contact is away from stationary contact, and chopper realizes separating brake.
Described electrical apparatus release, including: rotating turret 54, snap close 12 and tripping 11.Described snap close 12 is arranged on rotating turret 54 by the 5th rotating shaft 75 and can be rotated around the 5th rotating shaft 75, and described snap close 12 is connected with described handle 41 by second connecting rod 42；Described tripping 11 is fixed on inner fixed stand 61 with rotating turret 54 by the second common rotating shaft 72, and described tripping 11 has the linkage status locked together with described snap close 12 and the released state separated with described snap close 12；
As shown in Figure 5, described rotating turret 54 is linked by linkage and power transmission shaft 71, rotating turret 54 connects handle 41 by snap close 12 and second connecting rod 42, power transmission shaft 71 is fixed on stake body 62, thus setting up interaction relation between described handle 41 and stake body 62, make handle 41 can control the movable contact of chopper close to or away from movable contact, enable chopper separating brake quickly and efficiently.Linkage, including the first lock link the 51, second lock link 52 and the 3rd lock link 53, one end of described three lock links is coaxially connected at Q point, the other end Q1 of the first lock link 51 is arranged on inner fixed stand 61 immovable, the other end Q2 of the second lock link 52 is fixed on power transmission shaft 71 and links with it, and the other end Q3 of the 3rd lock link 53 is connected with described rotating turret 54.Q2 point is with rotating axle 71 when the 4th rotation axle 72 rotates clockwise in arcuate socket 91, owing to Q1 point is fixed, therefore Q point drives Q3 to produce a displacement to the right, described rotating turret 54 such as Fig. 5 is thus driven to rotate counterclockwise, otherwise, described for driving rotating turret 54 such as Fig. 5, with rotating axle 71 when the 4th rotation axle 72 rotates counterclockwise in arcuate socket 91, is rotated clockwise by Q2 point.In like manner, if described rotating turret 54 is rotated clockwise around the second rotating shaft 72 by driving, then rotating axle 71 will rotate counterclockwise around the 4th rotating shaft 74, and process is contrary with above-mentioned motor process.
As shown in figure 11, described tripping 11 has plate body 111, and it being molded over the cylindricality installation portion 112 bottom described plate body 111, the internal diameter of cylindricality installation portion 112 and the external diameter of the second rotating shaft 72 match, and make tripping 11 may be mounted in the second rotating shaft 72 and rotate around the second rotating shaft 72.Forming locked groove 1111 on described plate body 111, the outside opening of locked groove 1111 is more than inside opening.Forming the drive hole 1131 parallel with the axle of cylindricality installation portion 112 on extension 113 on cylindricality installation portion 112, described drive hole 1131 is connected with described trigger member 31, thus the linkage realizing described tripping 11 and trigger member 31 is arranged.
As shown in Figure 10, described snap close 12 includes the snap close side plate 123 of snap close body 121 and both sides, and snap close body 121 is provided with the locking projections 122 for coordinating with locked groove 1111 on the side of tripping 11.Described locking projections 122, in outer little interior big trapezoidal projection, matches with described locked groove 1111, so that tripping 11 and snap close 12 can effectively link.Deforming as one, described protruding 122 can be other shapes, and corresponding locked groove 1111 is the shape of coupling, and as locking projections 122 is rectangle, then locked groove 1111 outside opening is equal to inside opening.Form the reinforcement projection 124 for reinforcing tripping 12 in the middle part of described snap close body 121, strengthen snap close body 121 and bear the ability of internal stress, thus improving the service life of snap close 12.Described snap close side plate 123 forms the rotating shaft installing hole 1231 for the 5th rotating shaft 75 traverse, and for the second connecting rod installing hole 1232 that described second connecting rod 42 stretches into, the internal diameter of described rotating shaft installing hole 1231 and the external diameter of the 5th rotating shaft 75 match so that snap close 12 accurately can rotate around the 5th rotating shaft 75, the internal diameter of described second connecting rod installing hole 1232 and the external diameter of second connecting rod 42 match, so that handle 41 and snap close 12 can link accurately and efficiently.
Described trigger member 31 is driven by the first dropout driving mechanism or the second dropout driving mechanism and makes described tripping 11 transform to released state with described snap close 12 from linkage status, and drive described handle 41 to turn to open position from closing position by described second connecting rod 42, and then make breaker open operation；Being provided with the first elastic component 32 in described trigger member 31, described first elastic component 32 applies to make elastic force or the elastic force component that the circuit breaker tripping direction of motion is contrary to described trigger member 31.
As shown in Figure 12 and Figure 13, described trigger member 31 has rod body, described rod body one end forms the first extension 314 coordinated with described pressing piece 105, middle part extends to form the second extension 313 coordinated with described second dropout driving mechanism to side, and the other end has the 3rd extension 312 driving electrical apparatus release motion；Described 3rd extension 312 forms the extension rod 311 parallel with the rotating shaft 315 of described trigger member 31.Trigger member body is rod, one end of the described rod body rod of trigger member forms the first extension 314 coordinated with described pressing piece, the other end has the 3rd extension 312 driving electrical apparatus release motion, and centre extends to form the second extension 313 that the actuator with described second dropout driving mechanism coordinates to side.The pressing piece of the first dropout driving mechanism is moved to trigger position by initial position and the first extension is exerted a force, or the actuator of the second dropout driving mechanism is moved to the second position by primary importance and the second extension is exerted a force, then trigger member Forced rotation, the 3rd extension drives the electrical apparatus release of chopper.By the setting of first extension the 314, second extension 313 and the 3rd extension 312, making trigger member form rational structure, trigger member 31 can trigger electrical apparatus release under the drive of the first dropout driving mechanism or the second dropout driving mechanism and complete to thread off.First dropout driving mechanism and the second dropout driving mechanism are used in conjunction with trigger member 31 and complete to thread off, and save number of components, have saved space.
As shown in Fig. 8, Figure 12, the first dropout driving mechanism drives the first extension 314 or the second dropout driving mechanism to drive the second extension 313, makes trigger member 31 rotate counterclockwise in Fig. 8.The extension rod 311 parallel with described rotating shaft 315 and the drive hole 1131 of described tripping 11 are connected, described tripping 11 can rotate around the second rotating shaft 72, described rotating shaft 315 is coaxially disposed with the second rotating shaft 72 again, therefore, trigger member 31 rotates can drive described tripping 11 synchronous rotary, namely the first dropout driving mechanism or the second dropout driving mechanism make tripping 11 rotate by trigger member 31, locked groove 1111 goes out of lock protruding 122, tripping 11 and snap close 12 is made to become released state from linkage status, and then snap close 12 rotates and passes through second connecting rod 42 and makes handle 41 turn to open position, chopper realizes separating brake.
First dropout driving mechanism, including magnetictrip 101, magnetic sheet 104.Described magnetictrip 101 is the some wires in chopper; after circuit is short-circuited; described magnetictrip 101 is instantaneous by very big electric current; thus producing magnetic sheet 104 described in sufficiently large magnetically-actuated to move to trigger position from initial position; drive trigger member 31 to rotate and make electrical apparatus release motion cause circuit breaker tripping separating brake, it is achieved provide short-circuit protection quick, reliable, effective for chopper.
Described magnetic sheet 104 drives described trigger member 31 by pressing piece 105, described pressing piece 105 includes one end and coordinates fixing transverse slat and the riser fixing with the described transverse slat other end with described magnetic sheet 104, the other end of described riser is for contacting with described trigger member 31 and driving described trigger member 31 to move, become to have spring mounting groove 1051 in the middle of described transverse slat, described riser is hooked in second elastic component 102 one end, and the other end is fixed；Described second elastic component 102 applies the power away from described trigger member 31 or the component of power to described pressing piece 105；
As shown in Figure 8, the magnetictrip 101 of chopper is made up of some wires, and when chopper is maintained at closing position, magnetic sheet 104 keeps vertical, and correspondingly, pressing piece 105 remains stationary.Multiple magnetictrips 101 have a short circuit current flow, the magnetic force then produced is enough to drive magnetic sheet 104 to turn clockwise in Fig. 8, transverse slat thereby through pressing piece 105 promotes pressing piece 105, the riser making pressing piece 105 drives trigger member 31 to rotate counterclockwise in Fig. 8, thus driving breaker open operation；After short circuit current disappears, magnetic sheet 104 is reset to vertical position owing to losing the effect of magnetic force, and pressing piece 105 is reset to the position coordinated with described magnetic sheet 104 under the effect of the second elastic component 102.Additionally, when described magnetic sheet 104 turns clockwise under the effect of magnetic force in Fig. 8, its anglec of rotation is limited by locating part 103, produce shock episodes to prevent magnetic sheet 104 transition rotation from contacting with magnetictrip 101.Described locating part 103 to prevent the second elastic component elastic deformation from exceeding allowed band and reduction of service life for the anglec of rotation of magnetic sheet 104 after limiting short circuit, and is prevented from magnetic sheet contact wire and produces to damage to magnetic sheet.
Arc-control device A2, is arranged between the movable contact of chopper and stationary contact, the electric arc produced when being used for the movable contact extinguishing chopper with stationary contact disjunction；Metal grid on arc-control device A2 and stationary contact form the inclination angle of 5-10 °, such as 5 °, 8 ° or 10 °, provide more effective arc quenching effect for chopper.
Second dropout driving mechanism, can make electrical apparatus release motion make circuit breaker tripping separating brake；Described second dropout driving mechanism, controlled assembly controls, including the second electromagnet 108, actuator 107 and restoring board 812, the described second controlled assembly of electromagnet 108 produces actuator 107 described in magnetic force moving after controlling and being energized, described actuator 107 moves between the first position and the second position and drives described trigger member 31 in the process moving to the second position from primary importance, described restoring board 812, after electrical apparatus release releases and threads off, is used for promoting described actuator 107 to return primary importance.
As shown in Figure 8; control assembly and obtain the current value in circuit or magnitude of voltage; and exceed setting value (offer overload protection) at electric current; or (provide overvoltage and under-voltage protection respectively) when magnitude of voltage exceeds or falls below setting value; control the second electric magnet 108 to produce magnetic force and promote actuator 107; making described actuator 107 move to the second position from primary importance and drive trigger member 31 by the second extension 313, trigger member 31 makes iron core 21 away from static iron core 23 by electrical apparatus release.Described restoring board 812 is molded over on the pressing piece 81 of dynamic iron core 21 linkage, and when dynamic iron core 21 is away from static iron core 23, restoring board 812 moves upward as Fig. 8 in, thus promoting shown actuator 107 to be back to primary importance from the second position.
Further, display module also can be set, be used for showing current/voltage/performance number etc., control assembly also can arrange wireless communication port etc., it is achieved man-machine interaction, it is achieved the comprehensive intelligent of control and protective switching device is controlled.
Described handle 41 forms lockhole 411.Intelligent controlling device shell B2 is additionally provided with plectrum B1, as shown in Figure 1, for opening or closing control device 109 controls the function of the second dropout driving mechanism action, and the side of described plectrum B1 forms the protruding B11 that can coordinate with described lockhole 411, construction maintenance personnel are before to Circuits System maintenance work, handle 41 is turned to open position, stirring plectrum B1 again makes protruding B11 thereon stretch in the lockhole 411 of handle 41, thus handle 41 is locked in open position, then start circuit maintenance work again.Described protruding B11 coordinates with described lockhole 411, it is to avoid handle 41 false switching in circuit maintenance, initiation Electrical Safety accident.
Described plectrum B1 also has several gears, controls the function of the second dropout driving mechanism action for opening or closing controller 109.The function of the second dropout driving mechanism action can be controlled when stirring plectrum B1 to appointment position by controller 109 closing control device 109, now cannot make circuit breaker tripping separating brake by the second dropout driving mechanism.
Also including energy-saving mechanism, described energy-saving mechanism includes the pressing piece 81 arranged with the linkage of dynamic iron core 21, and the microswitch of control coil 22 connecting and disconnecting of the circuit, when dynamic iron core 21 contacts with static iron core 22, described pressing piece 81 presses microswitch and makes coil 22 power-off.
As described in Figure 5, described pressing piece 81 is arranged with the linkage of described dynamic iron core 21 by power transmission shaft 71, and pressing piece 81 forms press-side 811, being arranged below and the microswitch of control coil 22 switching electricity of press-side 811.Dynamic iron core 21 near static iron core 22 and is pulled together, and handle 41 turns to closing position, then press-side 811 presses microswitch and makes the power-off of described coil 22.Owing to the handle 41 at closing position constitutes self-locking with second connecting rod 42; therefore after coil 22 power-off, described dynamic iron core 21 still can keep in touch with described static iron core 22; the stationary contact of the movable contact on circuit breaker cradle body 62 and chopper still keeps closing a floodgate, it is achieved thereby that the energy-saving and emission-reduction of control and protective switching device.
The control and protective switching device that the present embodiment provides, its divide-shut brake operation principle is as described below:
nullFirst dropout driving mechanism or the second dropout driving mechanism driving handle 41 turn to the process of open position as follows: as shown in Figure 7，Trigger member 31 can synchronize rotate around the second rotating shaft 72 with described tripping 11，Trigger member 31 is driven by the first dropout driving mechanism or the second dropout driving mechanism and rotates counterclockwise，So that tripping 11 converts, with described snap close 12, the released state preparing separating brake to from linkage status when closing a floodgate，The snap close 12 of released state loses and the connection of tripping 11，Then described snap close 12 produces the trend rotated counterclockwise as shown in Figure 7，Second connecting rod 42 acts on lower handle 41 disequilibrium，The latch-release of handle 41，Described handle 41 is driven to turn to open position thereby through described second connecting rod 42，Make rotating turret 54 produce the trend rotated counterclockwise as shown in Figure 7 simultaneously，The dynamic iron core 21 of chopper is away from static iron core 23，Movable contact on stake body 62 and stationary contact disjunction simultaneously，Chopper is achieved separating brake.Described trigger member 31 is provided with the first elastic component 32, the other end of described first elastic component 32 is articulated on inner fixed stand 61, as shown in Figure 7, described trigger member 31 is resisted the first elastic component 32 and is rotated counterclockwise so that described tripping 11 is transformed into released state with snap close 12 from linkage status, after tripping 11 with trigger member 31 synchronous axial system separates with snap close 12, release energy at the first elastic component 32, trigger member 31 and tripping 11 is made to rotate clockwise as shown in Figure 7 so that trigger member 31 resets in order to driving breaker open operation again next time.Meanwhile, snap close 12 rotates counterclockwise, contrary with the rotation direction of tripping 11, so that locking projections 122 slips in locked groove 1111 again, described snap close 12 is converted to again linkage status with tripping 11 from released state；
External Force Acting lower handle 41 rotates to the process of open position as follows: as shown in Figure 6, second connecting rod 42 drives snap close 12 to turn clockwise around the 5th rotating shaft 75, thus driving rotating turret 54 and tripping 11 to turn clockwise around the second rotating shaft 72, second connecting rod 42 acts on lower handle 41 disequilibrium, the latch-release of handle 41, correspondingly, the power transmission shaft 71 being fixed on stake body 62 rotates counterclockwise around the 4th rotating shaft 74, so that the movable contact on stake body 62 is away from stationary contact.Meanwhile, the 3rd elastic component 34 applies to make the component of the movable contact power away from stationary contact or power to stake body 62.Rotating turret 54 with under linkage and the 3rd elastic component 34 combined effect, the movable contact on stake body 62 can rapidly away from stationary contact so that chopper promptly separating brake；
External Force Acting lower handle 41 rotates to the process of closing position as follows: as shown in Figure 6, second connecting rod 42 drives snap close 12 to rotate counterclockwise around the 5th rotating shaft 75, thus driving rotating turret 54 and tripping 11 to rotate counterclockwise around the second rotating shaft 72, during required when the rotational angle of handle is coplanar more than the centrage of the pivotal axis at the two ends of second connecting rod Yu the rotating shaft of handle rotational angle, form self-locking and make handle 41, electrical apparatus release is arranged on fixed position, correspondingly, the power transmission shaft 71 being fixed on stake body 62 rotates clockwise around the 4th rotating shaft 74, so that the movable contact on stake body 62 is near stationary contact.Meanwhile, handle 41 is rotated clockwise by arc notch pressing the 4th rotating shaft 74 of first connecting rod 43.Therefore, when handle 41 turns to closing position, rotating turret 54 with under linkage and first connecting rod 43 combined effect, the movable contact on stake body 62 can quickly close to stationary contact so that chopper promptly closes a floodgate.
Obviously, above-described embodiment is only for clearly demonstrating example, and is not the restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also cannot all of embodiment be given exhaustive.And the apparent change thus extended out or variation still in this utility model create protection domain among.
Claims (14)
1. control and protective switching device, it is characterised in that including: chopper (A) and be positioned at the intelligent controlling device (B) of described chopper (A) side；
It is provided with the second dropout driving mechanism in described intelligent controlling device (B) and controls assembly,
Described control assembly, for obtaining current value in circuit or magnitude of voltage in real time, and current value more than current setting value or magnitude of voltage more than/less than voltage setting value time, control the second dropout driving mechanism and drive (31) action of described trigger member and then make chopper (A) thread off；
The first dropout driving mechanism it is provided with in described chopper (A), described first dropout driving mechanism, including magnetictrip (101), magnetic sheet (104), after circuit is short-circuited, described magnetictrip (101) produces magnetically-actuated magnetic sheet (104) and moves to trigger position from initial position, drives trigger member (31) action and then triggers the electrical apparatus release in chopper (A) and make chopper (A) thread off.
2. control and protective switching device according to claim 1, it is characterised in that
Pressing piece (105) it is provided with between described magnetic sheet (104) and described trigger member (31), described magnetic sheet (104) drives described pressing piece (105) to do rectilinear motion when rotating, and then drive trigger member (31) motion, being additionally provided with the 4th elastic component (102) on described pressing piece (105), described 4th elastic component (102) applies the power away from described trigger member (31) or the component of power to described pressing piece (105).
3. control and protective switching device according to claim 2; it is characterized in that; described pressing piece (105) includes transverse slat and the riser fixing with the described transverse slat other end that one end coordinates with described magnetic sheet (104); the other end of described riser is for contacting with described trigger member (31) and driving described trigger member (31) to move; become to have spring mounting groove (51) in the middle of described transverse slat; described riser is hooked in described 4th elastic component (102) one end, and the other end is fixed.
4. the control and protective switching device according to Claims 2 or 3; it is characterized in that; described trigger member (31) has rod body; there is, towards the direction bending forming near chopper (A), the first extension (314) coordinated with described pressing piece (105) described rod body one end; middle part extends to form the second extension (313) coordinated with described second dropout driving mechanism to side, and the other end has the 3rd extension (312) driving electrical apparatus release motion.
5. the control and protective switching device according to any one of claim 1-3; it is characterized in that; being provided with the first elastic component (32) in described trigger member (31), described first elastic component (32) applies to make elastic force or the elastic force component that the circuit breaker tripping direction of motion is contrary to described trigger member (31).
6. the control and protective switching device according to any one of claim 1-3; it is characterized in that; also include locating part (103); it is arranged in the direction of motion that described magnetic sheet (104) is acted on by described magnetictrip (101), for stopping that after described magnetic sheet (104) moves to trigger position described magnetic sheet (104) is rotated further.
7. the control and protective switching device according to any one of claim 1-3; it is characterized in that; described second dropout driving mechanism; including the second electromagnet (108); actuator (107); the controlled device of described second electromagnet (108) (109) produces actuator (107) described in magnetic force moving after controlling and being energized, and described actuator (107) moves between the first position and the second position and drives described trigger member (31) in the process moving to the second position from primary importance.
8. control and protective switching device according to claim 7; it is characterized in that; also including restoring board (812), described restoring board (812), after electrical apparatus release releases and threads off, is used for promoting described actuator (107) to return primary importance.
9. control and protective switching device according to claim 8, it is characterised in that
The handle (41) of described chopper (A) is connected with electrical apparatus release by second connecting rod (42), when described handle (41) turns to closing position, rotational angle required when the rotational angle of described handle (41) is coplanar more than the centrage of the pivotal axis at the two ends of described second connecting rod (42) Yu the rotating shaft (73) of handle (41), forms self-locking and makes handle (41), electrical apparatus release be locked in relevant position；Being arranged with handle spring (33) on the rotating shaft of described handle (41), handle spring (33) applies to go to the power of open position or the component of power to described handle (41).
10. control and protective switching device according to claim 9, it is characterised in that
Described electrical apparatus release, including: rotating turret (54), snap close (12), tripping (11), snap close (12) is arranged on rotating turret (54) by the 5th rotating shaft (75) and above and can rotate around the 5th rotating shaft (75), and tripping (11) and rotating turret (54) are fixed on inner fixed stand (61) by common the second rotating shaft (72)；Snap close (12) is connected with described handle (41) by second connecting rod (42)；Tripping (11) has the linkage status locked together with described snap close (12) and the released state separated with described snap close (12)；
Described trigger member (31) is driven by the first dropout driving mechanism or the second dropout driving mechanism and makes described tripping (11) and described snap close (12) transform to released state from linkage status, and drive described handle (41) to turn to open position from closing position by described second connecting rod (42), and then drive dynamic iron core (21) away from static iron core (23)；Being provided with the first elastic component (32) in described trigger member (31), described first elastic component (32) applies to make elastic force or the elastic force component that the circuit breaker tripping direction of motion is contrary to described trigger member (31).
11. control and protective switching device according to claim 10, it is characterised in that
Described tripping (11) has plate body (111), and is molded over the cylindricality installation portion (112) bottom described plate body (111), and described plate body (111) forms locked groove (1111)；
Described cylindricality installation portion (112) radially forms extension (113), and described extension (113) forms the drive hole (1131) parallel with the axis hole of cylindricality installation portion (112)；
Described snap close (12) includes snap close body (121) and is positioned at the snap close side plate (123) of described snap close body (121) both sides, described snap close body (121) is provided with the locking projections (122) for coordinating with locked groove (1111) on tripping (11) side, and described snap close body (121) middle part forms the reinforcement for reinforcing tripping (12) protruding (124)；Described snap close side plate (123) forms rotating shaft installing hole (1231) and the second connecting rod installing hole (1232) stretched into for described second connecting rod (42).
12. control and protective switching device according to claim 11, it is characterised in that described rotating turret (54) is by linkage and power transmission shaft (71) linkage；
Described linkage includes: the second lock link (52) that one end and power transmission shaft (71) are fixing and the 3rd lock link (53) that the other end of described second lock link (52) is all coaxially disposed and the first lock link (51), the other end of described 3rd lock link (53) is connected with described rotating turret (54), and the other end of described first lock link (51) is rotatably arranged on described inner fixed stand (61).
13. according to the control and protective switching device described in any one of claim 1-2, it is characterised in that
Also include energy-saving mechanism, described energy-saving mechanism includes the pressing piece (81) arranged with dynamic iron core (21) linkage, the microswitch of control coil (22) connecting and disconnecting of the circuit, when dynamic iron core (21) contacts with static iron core (22), described pressing piece (81) pressing microswitch makes coil (22) power-off.
14. according to the control and protective switching device described in any one of claim 1-2, it is characterised in that
Described intelligent controlling device (B), also include: plectrum (B1), it is arranged on intelligent controlling device shell (B2), for opening or closing control device (109) controls the function of the second dropout driving mechanism action, and plectrum (B1) side has projection (B11)；
Described handle (41) forms lockhole (411), when handle (41) is in open position, stir described plectrum (B1) can make in the lockhole (411) that projection (B11) stretches on handle (41), thus stoping handle (41) to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620197761.5U CN205384996U (en) | 2016-03-15 | 2016-03-15 | Control and protection switch electric appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620197761.5U CN205384996U (en) | 2016-03-15 | 2016-03-15 | Control and protection switch electric appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205384996U true CN205384996U (en) | 2016-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620197761.5U Withdrawn - After Issue CN205384996U (en) | 2016-03-15 | 2016-03-15 | Control and protection switch electric appliance |
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| CN (1) | CN205384996U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105609386A (en) * | 2016-03-15 | 2016-05-25 | 佳一电气有限公司 | Control and protection switching device |
| CN106505929A (en) * | 2017-01-03 | 2017-03-15 | 浙江柯欣电气有限公司 | A kind of Double-speed motor controller |
| CN113380590A (en) * | 2021-07-01 | 2021-09-10 | 上海长城开关厂有限公司 | Small shell frame leakage reclosing switch |
-
2016
- 2016-03-15 CN CN201620197761.5U patent/CN205384996U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105609386A (en) * | 2016-03-15 | 2016-05-25 | 佳一电气有限公司 | Control and protection switching device |
| CN105609386B (en) * | 2016-03-15 | 2018-10-23 | 佳一电气有限公司 | Control and protective switching device |
| CN106505929A (en) * | 2017-01-03 | 2017-03-15 | 浙江柯欣电气有限公司 | A kind of Double-speed motor controller |
| CN113380590A (en) * | 2021-07-01 | 2021-09-10 | 上海长城开关厂有限公司 | Small shell frame leakage reclosing switch |
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