CN109216060A - A kind of PC grades of double power supply automatic transfer switch - Google Patents

A kind of PC grades of double power supply automatic transfer switch Download PDF

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Publication number
CN109216060A
CN109216060A CN201810762334.0A CN201810762334A CN109216060A CN 109216060 A CN109216060 A CN 109216060A CN 201810762334 A CN201810762334 A CN 201810762334A CN 109216060 A CN109216060 A CN 109216060A
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CN
China
Prior art keywords
power supply
common power
common
power source
strut
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Pending
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CN201810762334.0A
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Chinese (zh)
Inventor
冷岩
王晖
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Beijing Mingri Electrical Equipment Co Ltd
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Beijing Mingri Electrical Equipment Co Ltd
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Application filed by Beijing Mingri Electrical Equipment Co Ltd filed Critical Beijing Mingri Electrical Equipment Co Ltd
Priority to CN201810762334.0A priority Critical patent/CN109216060A/en
Publication of CN109216060A publication Critical patent/CN109216060A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00Mechanisms for operating contacts
    • H01H3/22Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/28Power arrangements internal to the switch for operating the driving mechanism using electromagnet
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00Mechanisms for operating contacts
    • H01H3/32Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/46Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00Mechanisms for operating contacts
    • H01H3/32Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/50Driving mechanisms, i.e. for transmitting driving force to the contacts with indexing or locating means, e.g. indexing by ball and spring
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20Interlocking, locking, or latching mechanisms
    • H01H9/24Interlocking, locking, or latching mechanisms for interlocking two or more parts of the mechanism for operating contacts

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

The present invention relates to a kind of PC grades of double power supply automatic transfer switch, including mounting base, the common powered electromagnetic iron conversion operation mechanism and backup power source electromagnet conversion operation mechanism of two side of mounting base are set, the arc-chutes and double-power intelligent controller of contact system on mounting base and contact system top are set, since dual power supply uses the lever connecting rod operating mechanism of special construction, after dual power supply side is in in-place closing, mechanism locks closing position by the anti-square of action link rod automatically, after dual power supply side is in separating brake in place, mechanism is by movement strut and acts the effect of compressed spring in strut and is locked in open position, mechanism may be implemented to increase contact pressure when closing a floodgate simultaneously, clearance between open contacts can be increased when separating brake, so that this dual power supply has excellent electric property, substantially increase the work of dual power supply Make stability.

Description

A kind of PC grades of double power supply automatic transfer switch
Technical field
The present invention relates to a kind of low-voltage electrical apparatuses, in particular relate to a kind of PC grades of double power supply automatic transfer switch.
Background technique
Double power supply automatic transfer switch is a kind of common low-voltage electrical apparatus, commonly used in the switching between two road power supplys, with Guarantee that another way power supply can be switched to, rapidly when power failure or stopping are powered all the way to ensure that load circuit is normal Power supply, this double power supply automatic transfer switch are generally grouped as by conversion operation mechanism and electrical control division, traditional PC grades double electricity For source automatic change-over due to the limitation of conversion operation mechanism, job stability is still inadequate, and KA Rms is inadequate, Constrain the development of PC grades of double power supply automatic transfer switch.
Summary of the invention
The defect that it is an object of the invention to overcome traditional PC grades of double power supply automatic transfer switch job stability inadequate, it is public Open a kind of double power supply automatic transfer switch with novel conversion operation mechanism.
The technical scheme adopted by the invention is that:
Including mounting base, the common power supply of mounting base side is arranged in a kind of PC grades of double power supply automatic transfer switch Conversion operation mechanism, the backup power source conversion operation mechanism that the mounting base other side is arranged in, are arranged in the touching on mounting base The arc-chutes and double-power intelligent controller of head system and contact system top;
Further setting, the common power supply conversion operation mechanism turn including common power supply conversion of electromagnetic iron, common power supply Change electromagnet action bar, common power supply actuating rod, common power supply action link rod, common power supply movement strut, common power supply hand Dynamic operating stick and common power operation mechanism mounting rack, the common power supply actuating rod, are commonly used common power supply action link rod Power supply movement strut, the lower part for commonly using power supply manual lever are hinged on the common power operation mechanism by swivel pin and install In the circular hole of frame lower part, the top of the common power supply conversion of electromagnetic iron actuating strut is acted the common power supply by swivel pin The horizontal arc groove on the common power operation mechanism mounting rack top is set in the middle part of push rod, common power supply manual lever Interior, the rectangle in the middle part of the common power supply action link rod is arranged in by swivel pin for the top of the common power supply actuating rod In sliding slot, the top of the common power supply movement strut is hinged on the downside of common power supply action link rod by swivel pin, described Common power supply moving contact rotation square shaft is arranged in square hole at the top of common power supply action link rod;
Backup power source conversion operation mechanism is identical with the structure of the common power supply conversion operation mechanism.
Further setting, the contact system includes commonly using power contact head system and backup power source contact system, described Common power contact head system include that common power supply moving contact rotates square shaft, be arranged with often on the common power supply rotation square shaft With power supply moving contact pivoted arm, the other end of the common power supply moving contact pivoted arm is hinged with common power supply moving contact connecting lever, described The other end of common power supply moving contact connecting lever is hinged with common power supply moving contact rack, in the common power supply moving contact rack It is provided with common power supply moving contact and moving contact compressed spring, the common power supply moving contact can be according to common power supply moving contact It rotates the rotation of square shaft different directions and completes the combined floodgate and separating brake of common power supply;
The contact system of the backup power source is identical as the contact system structure of common power supply.
Further setting is arranged between the common power supply moving contact rotation square shaft and backup power source moving contact rotation square shaft Have an interlocking connecting rod, be arranged with the chain arm of common power supply on the common power supply rotation square shaft, the common chain arm of power supply it is another One end is hinged with common power interlock connecting rod, and the other end of the common power interlock connecting rod is provided with rectangle sliding slot, spare The chain arm of power supply is arranged in the rectangle sliding slot by swivel pin;
The chain arm of backup power source, the other end of the chain arm of backup power source are arranged on the backup power source rotation square shaft It is hinged with backup power source interlocking connecting rod, the other end of the backup power source interlocking connecting rod is provided with rectangle sliding slot, commonly uses power supply Chain arm is arranged in the rectangle sliding slot by swivel pin.
Further setting, the structure phase of the common power operation mechanism mounting rack and backup power source operating mechanism mounting rack Together, the mounting rack is set as L shape, and bottom is fixed on the mounting base, and the mounting rack lower part is provided with a circle Hole, top are provided with a horizontal arc groove.
Further setting, the common power supply actuating rod is identical with the structure of backup power source actuating rod, the movement Push rod is set as double-layer structure, is each provided with a circular hole in the upper, middle and lower of the actuating rod.
Further setting, the common power supply action link rod is identical with the structure of backup power source action link rod, and described is dynamic It is set as double-layer structure as connecting rod, middle part is provided with rectangle sliding slot, and side is provided with circular hole, and top is provided with square hole.
Further setting, the common power supply movement strut is identical with the structure of backup power source movement strut, described Power supply movement strut lower part is set as ring bodies, is fixed with strut on the ring bodies, compression is provided in the strut The top of spring, the strut is flat-shaped body, is provided with circular hole on the flat-shaped body;
Further setting, the knot of the common power supply conversion of electromagnetic iron actuating strut and backup power source conversion of electromagnetic iron actuating strut Structure is identical, including conversion of electromagnetic iron and conversion of electromagnetic iron actuating strut, is set as flat-shaped at the top of the conversion of electromagnetic iron actuating strut Body, is provided with circular hole on the flat-shaped body, and the tail portion of the conversion of electromagnetic iron actuating strut is fixed on the dynamic of conversion of electromagnetic iron On iron core.
Further setting, the common power supply manual lever is identical with the structure of backup power source manual lever, described Manual lever be set as up-small and down-big taper, lower part and middle part are each provided with a circular hole, and top is provided with operation handle Mounting hole, when needing to be operated manually, can manually force in manual handle realize dual power supply switch closing and switch opening, together When, dual power supply can also realize common power supply and backup power source all in gate-dividing state, to facilitate to double electricity by manual handle The loaded line in source is overhauled.
Further setting is provided with common electricity in the common power supply rotation square shaft and backup power source rotation side the tip of the axis Source acts stop member and backup power source and acts stop member, when dual power supply close a floodgate or separating brake in place after, described in the rotation with rotation square shaft Movement stop member will open the auxiliary switch of side and make conversion of electromagnetic iron power off.
The PC grade double power supply automatic transfer switch of above structure has the advantage, that
Since common powered electromagnetic iron conversion operation mechanism and backup power source electromagnet conversion operation mechanism are using special The lever connecting rod mechanism of structure, after dual power supply side is in in-place closing, due in operating mechanism mounting rack upper arcuate slot The position-limiting action of swivel pin works as dual power supply so that action link rod can not be rotated clockwise and be automatically locked at closing position After side is in separating brake in place, due to the position-limiting action of swivel pin in operating mechanism mounting rack upper arcuate slot, so that movement connects Bar can not rotate counterclockwise and be automatically locked at open position, no matter in this way, dual power supply is in and closes a floodgate or when open position, they It can be in stable self-sustaining state, while operating mechanism may be implemented to increase contact pressure when closing a floodgate, and dual power supply is enable to hold By the time of bigger KA Rms and longer KA Rms, when separating brake, can increase clearance between open contacts, be conducive to double Arc extinguishing when power supply disjunction switching current substantially increases dual power supply so that this dual power supply has excellent electric property Stable working performance, simultaneously as common power supply and backup power source respectively use a set of conversion operation mechanism, between have mechanical mutual again Connecting rod is locked, is more advantageous to the job stability of dual power supply in this way.
Detailed description of the invention
Fig. 1 is overall structure figure of the present invention;
Fig. 2 is Fig. 1 conversion operation mechanism structure figure;
Fig. 3 is that Fig. 1 often uses power supply separating brake side view in place;
Fig. 4 is Fig. 1 backup power source in-place closing side view;
Fig. 5 is contact system structure figure of the present invention;
Fig. 6 is that Fig. 1 often uses power operation mechanism mounting rack structure chart;
Fig. 7 is that Fig. 1 often uses power supply actuating rod structure chart;
Fig. 8 is that Fig. 1 often uses power supply action link rod structure chart;
Fig. 9 is that Fig. 1 often uses power supply power supply to act strut lower junction composition;
Figure 10 is that Fig. 1 often uses power supply power supply to act strut superstructure figure;
Figure 11 is that Fig. 1 often uses power supply manual lever structure chart;
Figure 12 is that Fig. 1 often uses power supply conversion of electromagnetic iron actuating strut structure chart;
Figure 13 is that Fig. 1 often uses power interlock link mechanism figure.
Specific embodiment
It should be noted that term described in the invention patent specification " lower part ", " middle part ", " top ", " tail portion " " left side The orientation or positional relationship of the instructions such as side " " right side " " downside " is to be based on the orientation or positional relationship shown in the drawings, and described is " normal With power supply " " backup power source " is also merely for convenience of the description present invention, rather than the device or element of indication or suggestion meaning must There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In conjunction with Fig. 1~Figure 13, by specific embodiment, the invention will be further described.
A kind of PC grades of double power supply automatic transfer switch, as shown in Figure 1, including mounting base, being arranged on the right side of mounting base Common power supply conversion operation mechanism 1, the backup power source conversion operation mechanism 3 that is arranged on the left of mounting base, setting installing Common power contact head system, backup power source contact system and the arc-chutes 2 on contact system top on bottom plate;
Further setting, as shown in Figure 1, the common power supply conversion operation mechanism includes common power supply conversion of electromagnetic iron 10, power supply conversion of electromagnetic iron actuating strut 103, common power supply actuating rod 104, common power supply action link rod 106, common electricity are commonly used Source acts strut 105, common power supply manual lever 101 and common power operation mechanism mounting rack 102, the common power supply Under actuating rod 104, common power supply action link rod 106, common power supply movement strut 105, common power supply manual lever 101 Portion is hinged in the circular hole of 102 lower part of common power operation mechanism mounting rack by swivel pin, the common power supply conversion The top of electromagnet action bar 103 is by swivel pin by the common power supply actuating rod 104, common power supply manual lever 101 middle part is arranged in the arc groove on 102 top of common power operation mechanism mounting rack, and the common power supply movement pushes away The top of bar 104 is arranged in the rectangle sliding slot at 106 middle part of common power supply action link rod by swivel pin, described common The top of power supply movement strut 105 is hinged on the downside of common power supply action link rod 106 by swivel pin, and the common power supply is dynamic Make to be arranged with common power supply moving contact rotation square shaft 108 in the square hole at 106 top of connecting rod;
Further setting, as shown in figure 4, backup power source conversion operation mechanism and common power supply conversion operation mechanism Structure is identical, including backup power source conversion of electromagnetic iron actuating strut 303, backup power source actuating rod 304, backup power source action link rod 306, backup power source movement strut 305, backup power source manual lever 301 and backup power source operating mechanism mounting rack 302, it is described Backup power source actuating rod 304, backup power source action link rod 306, backup power source movement strut 305, backup power source grasp manually The lower part for making bar 301 is hinged in the circular hole of 302 lower part of backup power source operating mechanism mounting rack by swivel pin, described standby Pass through swivel pin for the backup power source actuating rod 304, backup power source hand with the top of power supply conversion of electromagnetic iron actuating strut 303 The middle part of dynamic operating stick 301 is arranged in the arc groove on 302 top of backup power source operating mechanism mounting rack, the standby electricity The top of source actuating rod 304 is arranged in the rectangle sliding slot at 306 middle part of backup power source action link rod by swivel pin, The top of the backup power source movement strut 305 is hinged on the downside of backup power source action link rod 306 by swivel pin, described standby Square shaft 308 is rotated with backup power source moving contact is arranged in the square hole at 306 top of power supply action link rod.
Further setting, as shown in figure 5, being arranged with common power supply on the common power supply moving contact rotation square shaft 108 Moving contact pivoted arm 112 is hinged with common power supply moving contact connecting lever 113 in the other end of the common power supply moving contact pivoted arm 112, The other end of the common power supply moving contact connecting lever 113 is hinged with common power supply moving contact rack 114, dynamic in the common power supply Common power supply moving contact 109 and moving contact compressed spring are provided in contact supporting 114, the compressed spring can make contactor Always it is in a kind of Elastic Contact situation when lock and after closing a floodgate, is conducive to the job stability of dual power supply, the common power supply is dynamic Contact 109 can rotate the rotation of 108 different directions of square shaft according to common power supply moving contact and complete common power supply moving contact 109 With the combined floodgate and separating brake of common power supply static contact 110;
Further setting, as shown in figure 5, being arranged with backup power source on the backup power source moving contact rotation square shaft 308 The other end of moving contact pivoted arm 312, the backup power source moving contact pivoted arm 312 is hinged with backup power source moving contact connecting lever 313, institute The other end for stating backup power source moving contact connecting lever 313 is hinged with backup power source moving contact rack 314, in the dynamic touching of the backup power source Backup power source moving contact 309 and moving contact compressed spring are provided in head bracket 314, the compressed spring can make contact close a floodgate When and close a floodgate after always be in a kind of Elastic Contact situation, be conducive to the job stability of dual power supply, the backup power source in this way Moving contact 309 can rotate the rotation of 308 different directions of square shaft according to backup power source moving contact and complete backup power source moving contact 309 with the combined floodgate and separating brake of backup power source static contact 310.
Further setting, as shown in figure 5, being arranged with the chain arm of common power supply on the common power supply rotation square shaft 108 115, the other end of the common chain arm 115 of power supply is hinged with common power interlock connecting rod 111, commonly uses power interlock connecting rod 111 other end is provided with rectangle sliding slot 1111, and the chain arm 315 of backup power source is arranged by swivel pin described common In the rectangle sliding slot 1111 of power interlock connecting rod 111, when common power supply is in in-place closing, the chain arm of backup power source On the 315 1111 right end hole walls of rectangle sliding slot in common power interlock connecting rod 111, at this point, backup power source rotation square shaft will It can not rotate counterclockwise and make backup power source switch on of moving contact;
Equally, as shown in Fig. 5, Fig. 2, it is arranged with the chain arm 315 of backup power source on the backup power source rotation square shaft 308, The other end of the chain arm 315 of backup power source is hinged with backup power source interlocking connecting rod 311, and backup power source interlocks connecting rod 311 The other end is provided with rectangle sliding slot 3111, and the common chain arm 115 of power supply is arranged by swivel pin in the backup power source In the rectangle sliding slot 3111 for interlocking connecting rod 311, after backup power source in-place closing, the common chain arm 115 of power supply will place Square shaft 108 is rotated on the 3111 right end hole wall of rectangle sliding slot of backup power source interlocking connecting rod 311, commonly using power supply moving contact at this time It will be unable to rotate counterclockwise and make common power supply switch on of moving contact.
Further setting, as shown in fig. 6, the common power operation mechanism mounting rack 102 is set as L shape, bottom 1023 It is fixed on the mounting base, 102 lower part of common power operation mechanism mounting rack is provided with a circular hole 1022, top It is provided with a horizontal arc groove 1021;
Equally, the backup power source operating mechanism mounting rack is identical with the structure of common power operation mechanism mounting rack.
Further setting, as shown in fig. 7, the common power supply actuating rod 104 is set as double-layer structure, is rolled by steel plate It forms, the top of common power supply actuating rod 104 is provided with circular hole 1041, is set at the middle part of common power supply actuating rod 104 It is equipped with circular hole 1042, the lower part of common power supply actuating rod 104 is provided with circular hole 1043;
Equally, the structure of the backup power source actuating rod is identical with the structure of common power supply actuating rod.
Further setting, as shown in figure 8, the common power supply action link rod 106 is set as double-layer structure, is rolled by steel plate It forms, middle part is provided with rectangle sliding slot 1063, and side is provided with circular hole 1062, and top is provided with square hole 1061;
Equally, the structure of the backup power source action link rod is identical with the structure of common power supply action link rod.
Further setting, as shown in Fig. 1, Fig. 9, Figure 10, common power supply movement 105 lower part of strut is set as cyclic annular Body 1052, the 1052 middle part circular hole 1053 of ring bodies are movement strut hinge hole, the circular hole on 1052 top of ring bodies It is provided with compressed spring 1056 in 1052, is equipped with strut 1054, the strut in the outer sheath of the compressed spring 1056 1054 top is flat-shaped body, is provided with circular hole 1055, the lower part 1057 of the flat-shaped body is set in the compressed spring The inside of 1056 upper ends;
Equally, the structure of backup power source movement strut is identical as the common power supply movement structure of strut.
Further setting, as shown in figure 11, the common power supply manual lever 101 is set as down big up small conical plate Shape structure, lower part are provided with circular hole 1012, and middle part is provided with circular hole 1011, and top is provided with the mounting hole 1013 of manual handle, When needing to be operated manually dual power supply, it can manually force in manual handle and carry out the closing by hand of dual power supply and divide Lock, meanwhile, dual power supply can realize common power supply and backup power source all in gate-dividing state, to facilitate to double by manual handle The loaded line of power supply is overhauled.
Equally, the structure of the backup power source manual lever is identical as the structure of common power supply manual lever.
Further setting, as shown in figure 12, is provided with closing coil, separating brake line in the common power supply conversion of electromagnetic iron 10 Circle and dynamic iron core, the common power supply conversion of electromagnetic iron 10 are fixed on double power supply automatic transfer switch by mounting base 1032 On mounting base, the top of the common power supply conversion of electromagnetic iron actuating strut 103 is set as flat-shaped body, is provided with circular hole 1031, the tail portion of the common power supply conversion of electromagnetic iron actuating strut 103 is fixed on the dynamic iron core of common power supply conversion of electromagnetic iron 10 On.
Equally, the structure of the backup power source conversion of electromagnetic iron and conversion of electromagnetic iron actuating strut and common power supply conversion of electromagnetic Iron is identical with the structure of conversion of electromagnetic iron actuating strut.
Further setting, as shown in figure 13, the common power interlock connecting rod 111 are set as rectangle tabular structure, and one End is provided with circular hole 1112, and the other end is provided with rectangle sliding slot 1111;
Equally, the backup power source interlocking connecting rod is identical with the structure of the common power interlock connecting rod.
Further setting is provided with common electricity in the common power supply rotation square shaft and backup power source rotation side the tip of the axis Source acts stop member and backup power source and acts stop member, when power supply close a floodgate or separating brake in place after, described in the rotation with rotation square shaft Movement stop member will open the auxiliary switch of side and power off conversion of electromagnetic iron.
The conversion operation mechanism action principle of the present embodiment is as follows:
As shown in figure 4, after the intelligent controller of double power supply automatic transfer switch provides backup power source switching signal, it is spare The closing coil of powered electromagnetic iron 30 obtains electric, and backup power source conversion of electromagnetic iron actuating strut 304 is drawn in swivel pin 3031 and is in The right end of the 302 horizontal arc groove in top of backup power source operating mechanism mounting rack, the top of the actuating rod 304 pass through hinged Pin acts to the right in the sliding slot of action link rod 306, drives action link rod 306 for counterclockwise rotation, so that action link rod The rotation square shaft 308 on 306 tops rotates in an anti-clockwise direction, thus drive rotation square shaft 308 on moving contact move downward and with The static contact of lower part closes a floodgate, and after in-place closing, the backup power source on the backup power source rotation square shaft 308 acts stop member 309 It opens the auxiliary switch 307 in left side and powers off electromagnet, contact pressure can give action link rod 306 after being closed a floodgate due to backup power source One reaction force is rotated clockwise action link rod 306, due to swivel pin on backup power source operating mechanism mounting rack 302 3031 position-limiting action, so that actuating rod 304 can not be rotated clockwise and being automatically locked at closing position makes standby electricity The combined floodgate in source is in stable combined floodgate hold mode;
As shown in Figure 2 and Figure 3, after the intelligent controller of double power supply automatic transfer switch provides common power supply sub-gate signal, The opening coil of common power supply conversion of electromagnetic iron obtains electric, conversion of electromagnetic iron actuating strut 103 is released, by common power supply conversion of electromagnetic Iron actuating strut 104 is pushed out to the left end that swivel pin 1031 is in the common 102 horizontal arc groove in top of power operation mechanism mounting rack, 103 upper end of actuating rod acts to the left simultaneously, and the rotation square shaft 108 on 106 top of actuating strut is forced to turn clockwise It is dynamic, so that the moving contact on rotation square shaft 108 be driven to move upwards and the static contact separating brake with lower part, when separating brake in place after, institute The common power supply movement stop member on common power supply rotation square shaft stated opens the auxiliary switch of side and makes common power supply conversion electricity Magnet power-off, after commonly using power supply separating brake in place, so that common power supply rotation square shaft 108 is relative in movement strut 105 and strut The effect of compressed spring produces torque counterclockwise, at this time due to swivel pin 1031 on common power operation mechanism mounting rack 102 Position-limiting action so that common power supply action link rod 106 can not rotate counterclockwise and being automatically locked at open position makes common electricity Source is in stable separating brake hold mode, no matter in this way, they can be in stabilization when dual power supply is in combined floodgate or open position Self-sustaining state, while mechanism may be implemented close a floodgate when increase contact pressure, so that dual power supply is born bigger tolerance in short-term The time of electric current and longer KA Rms, when separating brake, can increase clearance between open contacts, be conducive to dual power supply disjunction switching current When arc extinguishing so that the dual power supply of this structure have excellent electric property, substantially increase the job stability of dual power supply. Simultaneously as the effect of interlocking connecting rod, when common power supply is in combined floodgate situation, backup power source cannot close a floodgate, and work as backup power source When in combined floodgate situation, common power supply cannot close a floodgate, and ensure that the case where dual power supply is not in two road power supply short circuit generation, should Dual power supply has the function of common power supply and backup power source separating brake simultaneously, the maintenance powered off in favor of user to loaded line And maintenance.
The common power supply close a floodgate and the switching motion principle of backup power source separating brake with it is upper identical.
It should be understood that the above embodiment is merely an example for clearly illustrating the present invention, and not to reality The restriction of mode is applied, for those of ordinary skill in the art, can also be made on the basis of the above description other Various forms of variations or variation, there is no necessity and possibility to exhaust all the enbodiments, and extended from this Obvious changes or variations are still in the protection scope of this invention.

Claims (10)

1. a kind of PC grades of double power supply automatic transfer switch, turn including mounting base, the common power supply for being arranged in mounting base side The backup power source conversion operation mechanism for changing operating mechanism, the mounting base other side being arranged in, is arranged in the contact on mounting base The arc-chutes and double-power intelligent controller of system and contact system top;
It is characterized in that: the common power supply conversion operation mechanism includes common power supply conversion of electromagnetic iron, common power supply conversion of electromagnetic Iron actuating strut, common power supply actuating rod, common power supply action link rod, common power supply movement strut, common power supply manual operation Bar and common power operation mechanism mounting rack, the common power supply actuating rod, common power supply action link rod, common power supply are dynamic The lower part for making strut and common power supply manual lever is hinged under the common power operation mechanism mounting rack by swivel pin In the circular hole in portion, the top of the common power supply conversion of electromagnetic iron actuating strut is pushed away the common power supply movement by swivel pin The horizontal arc groove on the common power operation mechanism mounting rack top is set in the middle part of bar, common power supply manual lever Interior, the rectangle in the middle part of the common power supply action link rod is arranged in by swivel pin for the top of the common power supply actuating rod In sliding slot, the top of the common power supply movement strut is hinged on the downside of common power supply action link rod by swivel pin, described Common power supply moving contact rotation square shaft is arranged in square hole at the top of common power supply action link rod;
Backup power source conversion operation mechanism is identical with the structure of the common power supply conversion operation mechanism.
2. PC grades of double power supply automatic transfer switch according to claim 1, it is characterized in that: the contact system includes normal With power supply contact system and backup power source contact system, the common power contact head system includes common power supply moving contact rotation Square shaft is arranged with common power supply moving contact pivoted arm on the common power supply moving contact rotation square shaft, and the common power supply is dynamic The other end of contact pivoted arm is hinged with common power supply moving contact connecting lever, and the other end of the common power supply moving contact connecting lever is hinged with Common power supply moving contact rack is provided with common power supply moving contact and moving contact compression in the common power supply moving contact rack Spring, the common power supply moving contact can rotate the rotation of square shaft different directions according to common power supply moving contact and complete to commonly use The combined floodgate and separating brake of power supply;
The contact system of the backup power source is identical as the contact system structure of the common power supply.
3. PC grades of double power supply automatic transfer switch according to claim 1, it is characterized in that: the common power supply moving contact turns It is provided with interlocking connecting rod between dynamic square shaft and backup power source moving contact rotation square shaft, is arranged on the common power supply rotation square shaft The common chain arm of power supply, the other end of the common chain arm of power supply are hinged with common power interlock connecting rod, the common power supply The other end of interlocking connecting rod is provided with rectangle sliding slot, and the chain arm of backup power source is arranged in the rectangle by swivel pin and slides In slot;
It is arranged with the chain arm of backup power source on the backup power source rotation square shaft, the other end of the chain arm of backup power source is hinged There is backup power source to interlock connecting rod, the other end of the backup power source interlocking connecting rod is provided with rectangle sliding slot, it is chain to commonly use power supply Arm is arranged in the rectangle sliding slot by swivel pin.
4. PC grades of double power supply automatic transfer switch according to claim 1, it is characterized in that: the common power operation machine Structure mounting rack is set as L shape, and bottom is fixed on the mounting base, and the common power operation mechanism mounting rack lower part is set It is equipped with a circular hole, top is provided with a horizontal arc groove;
The backup power source operating mechanism mounting rack is identical with the structure of the common power operation mechanism mounting rack.
5. PC grades of double power supply automatic transfer switch according to claim 1, it is characterized in that: the common power supply actuating rod It is set as double-layer structure, is each provided with a circular hole in the upper, middle and lower of the common power supply actuating rod.
The backup power source actuating rod is identical with the structure of the common power supply actuating rod.
6. PC grades of double power supply automatic transfer switch according to claim 1 connects it is characterized in that: the common power supply acts Bar is set as double-layer structure, and middle part is provided with rectangle sliding slot, and side is provided with circular hole, and top is provided with square hole.
The backup power source action link rod is identical with the structure of the common power supply action link rod.
7. PC grades of double power supply automatic transfer switch according to claim 1, it is characterized in that: the common power supply power supply is dynamic Make strut lower part and be set as ring bodies, be fixed with strut on the ring bodies, compressed spring, institute are provided in the strut The top for stating strut is flat-shaped body, is provided with circular hole on the flat-shaped body;
The backup power source movement strut is identical with the structure of the common power supply movement strut.
8. PC grades of double power supply automatic transfer switch according to claim 1, it is characterized in that: the common power supply conversion of electromagnetic It is set as flat-shaped body at the top of iron actuating strut, circular hole, the common power supply conversion of electromagnetic iron are provided on the flat-shaped body The tail portion of actuating strut is fixed in the dynamic iron core of the common power supply conversion of electromagnetic iron;
The backup power source conversion of electromagnetic iron actuating strut is identical with the structure of the common power supply conversion of electromagnetic iron actuating strut.
9. PC grades of double power supply automatic transfer switch according to claim 1, it is characterized in that: the common power supply is grasped manually It is set as up-small and down-big taper as bar, lower part and middle part are each provided with a circular hole, and top is provided with the mounting hole of operation handle;
The backup power source manual lever is identical with the structure of the common power supply manual lever.
10. PC grades of double power supply automatic transfer switch according to claim 1, it is characterized in that: being rotated in the common power supply Square the tip of the axis is provided with common power supply movement stop member, and in the backup power source rotation side, it is dynamic to be provided with backup power source for the tip of the axis Make stop member, when power supply close a floodgate or separating brake in place after, with rotation square shaft rotation described in movement stop member will open the auxiliary of side It helps switch and powers off conversion of electromagnetic iron.
CN201810762334.0A 2018-07-12 2018-07-12 A kind of PC grades of double power supply automatic transfer switch Pending CN109216060A (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112750633A (en) * 2020-12-28 2021-05-04 施耐德万高(天津)电气设备有限公司 Energy storage spring operating mechanism of low-voltage isolation dual-power transfer switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112750633A (en) * 2020-12-28 2021-05-04 施耐德万高(天津)电气设备有限公司 Energy storage spring operating mechanism of low-voltage isolation dual-power transfer switch

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