CN112670108A - PC-level heavy-current dual-power automatic transfer switch - Google Patents
PC-level heavy-current dual-power automatic transfer switch Download PDFInfo
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- CN112670108A CN112670108A CN202010839952.8A CN202010839952A CN112670108A CN 112670108 A CN112670108 A CN 112670108A CN 202010839952 A CN202010839952 A CN 202010839952A CN 112670108 A CN112670108 A CN 112670108A
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Abstract
A PC-level heavy-current dual-power automatic transfer switch comprises an electromagnet driving mechanism and a contact arc extinguishing mechanism, for three-section working, two electromagnet driving mechanisms are symmetrically arranged, for two-section working, only one electromagnet driving mechanism is needed, the driving electromagnet is provided with a thrust coil and a tension coil, the movable iron core pushes or pulls the gear transmission lever to carry out action conversion, a contact four-bar mechanism is arranged on the action rotating shaft of the common power supply and the standby power supply, an action interlocking device is arranged between the two action rotating shafts, so that a faster and larger transmission torque can be obtained on the action rotating shaft of the dual-power automatic transfer switch, because of the action of the four-bar linkage mechanism and the interlocking device, the stable work of the double power supplies under various working conditions can be ensured, the double-power-supply automatic change-over switch with simple structure and stable performance is suitable for power supply change-over under larger current.
Description
The invention relates to a low-voltage apparatus, in particular to a PC-level heavy-current dual-power automatic transfer switch.
Background
The dual-power automatic transfer switch is a commonly used low-voltage electrical appliance, and is commonly used for the transfer between two paths of power supplies so as to ensure that when one path of power supply fails or stops supplying power, the other path of power supply can be rapidly switched so as to ensure the normal power supply of a load loop. The lever action mechanism and the contact arc extinguishing mechanism of the traditional PC-level dual-power automatic transfer switch are limited in structure, so that the transferred action torque is small, the action speed of the dual-power automatic transfer switch during power conversion cannot meet the requirement, the contact cannot be pushed to rapidly act when the dual-power automatic transfer switch performs power conversion, particularly high-current power conversion, so that the dual-power automatic transfer switch can smoothly perform power conversion, and meanwhile, the working stability is still to be improved.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and discloses a PC-level high-current dual-power automatic transfer switch which is large in transfer torque, high in transfer speed, simple in structure and stable in working performance.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a PC-level heavy-current dual-power-supply automatic transfer switch suitable for three-section work comprises a common power supply electromagnet driving mechanism and a standby power supply electromagnet driving mechanism which are identical in structure, and a common power supply contact arc extinguishing mechanism and a standby power supply contact arc extinguishing mechanism which are identical in structure;
the common power supply electromagnet driving mechanism comprises a common power supply driving electromagnet, a common power supply transmission connecting rod, a common power supply transmission lever and a common power supply action rotating shaft provided with a common power supply rotating shaft transmission gear;
the standby power supply electromagnet driving mechanism comprises a standby power supply driving electromagnet, a standby power supply transmission connecting rod, a standby power supply transmission lever and a standby power supply action rotating shaft provided with a standby power supply rotating shaft transmission gear;
the common power supply driving electromagnet is arranged on a mounting bottom plate with double power supplies, a common power supply thrust coil and a common power supply tension coil are arranged in the common power supply driving electromagnet, a common power supply action iron core is sleeved in the common power supply thrust coil and the common power supply tension coil, a common power supply transmission connecting rod is hinged at the end of the common power supply action iron core, the other end of the common power supply transmission connecting rod is hinged at the force application end of a common power supply transmission lever, when the thrust coil of the common power supply driving electromagnet is electrified, the action iron core can push the transmission connecting rod to enable a common power supply action rotating shaft to rotate so as to enable a common power supply moving contact with the double power supplies to be switched on, and when the tension coil of the common power supply driving electromagnet is electrified, the action iron core can pull the transmission connecting rod to enable the common power supply, the resistance end of the common power supply transmission lever is provided with a common power supply lever transmission gear which is meshed with a common power supply rotating shaft transmission gear arranged on a common power supply action rotating shaft, the common power supply transmission lever and the common power supply action rotating shaft adopt gear transmission, so that the dual-power automatic transfer switch can obtain enough transmission torque on the common power supply action rotating shaft when power is switched, and the common power supply lever transmission gear and the common power supply rotating shaft transmission gear are transmitted at a transmission ratio smaller than 1, so that the dual-power automatic transfer switch can obtain faster rotating speed on the common power supply action rotating shaft when power is switched, and arc extinction and working stability of the dual-power automatic transfer switch are facilitated;
the emergency power supply driving electromagnet and the common power supply driving electromagnet are symmetrically arranged on a mounting bottom plate with double power supplies, an emergency power supply thrust coil and an emergency power supply tension coil are arranged in the emergency power supply driving electromagnet, an emergency power supply action iron core is sleeved in the emergency power supply thrust coil and the emergency power supply tension coil, an emergency power supply transmission connecting rod is hinged at the end of the emergency power supply action iron core, the other end of the emergency power supply transmission connecting rod is hinged at the force application end of an emergency power supply transmission lever, when the thrust coil of the emergency power supply driving electromagnet is electrified, the action iron core can push the transmission connecting rod to enable an emergency power supply action rotating shaft to rotate so as to enable an emergency power supply moving contact of the double-power supply automatic transfer switch to be switched on, and when the tension coil of the emergency power supply driving electromagnet is electrified, the action iron core can pull the transmission connecting rod, the resistance end of the standby power supply transmission lever is provided with a standby power supply lever transmission gear which is meshed with a standby power supply rotating shaft transmission gear arranged on a standby power supply action rotating shaft, the standby power supply transmission lever and the standby power supply action rotating shaft are in gear transmission, so that a double-power-supply automatic transfer switch can obtain enough transmission torque on the standby power supply action rotating shaft when power supply is switched, the standby power supply lever transmission gear and the standby power supply rotating shaft transmission gear are in transmission with a transmission ratio smaller than 1, and thus, the double-power-supply automatic transfer switch can obtain faster rotating speed on the standby power supply rotating shaft when power supply is switched, and the working stability of the double-power-supply automatic transfer switch is facilitated;
the common power supply contact arc extinguishing mechanism comprises a common power supply action rotating shaft and a common power supply contact four-bar linkage mechanism, wherein an upper connecting rod of the common power supply contact four-bar linkage mechanism is arranged on the common power supply action rotating shaft, a lower connecting rod of the common power supply contact four-bar linkage mechanism is hinged at the upper connecting rod end of the common power supply contact four-bar linkage mechanism, a common power supply moving contact is hinged at the other end of the lower connecting rod of the common power supply contact four-bar linkage mechanism, a common power supply arc extinguishing cover is arranged at the position of the common power supply moving contact and the position of a fixed contact, when the common power supply action rotating shaft is at a switching-on position, an included angle between the upper connecting rod of the common power supply contact four-bar linkage mechanism and the lower connecting rod of the common power supply contact four-bar linkage mechanism is larger than 180 degrees, and therefore, after the common power supply contact four-bar linkage mechanism passes, the double-power-supply automatic change-over switch has the advantages that the moving contact and the static contact of the double-power-supply automatic change-over switch are not easy to bounce off under the action of large current and electric power, and the short-time withstand current and the working stability of the double-power-supply automatic change-over switch are improved.
The backup power supply contact arc extinguishing mechanism comprises a backup power supply action rotating shaft and a backup power supply contact four-bar linkage mechanism, wherein an upper connecting rod of the backup power supply contact four-bar linkage mechanism is arranged on the backup power supply action rotating shaft, a lower connecting rod of the backup power supply contact four-bar linkage mechanism is hinged to the upper connecting rod end of the backup power supply contact four-bar linkage mechanism, a backup power supply moving contact is hinged to the other end of the lower connecting rod of the backup power supply contact four-bar linkage mechanism, a backup power supply arc extinguishing cover is arranged at the position of the backup power supply moving contact and the position of the static contact, when the backup power supply action rotating shaft is in a switching-on position, an included angle between the upper connecting rod of the backup power supply contact four-bar linkage mechanism and the lower connecting rod of the backup power supply contact four-bar linkage mechanism is larger than 180 degrees, and therefore, after the backup power supply contact four-bar linkage mechanism, the advantage is that the moving contact and the static contact are not easy to bounce off under the action of the large current and the electric power, and the short-time withstand current and the working stability of the dual-power automatic transfer switch are improved.
The common power supply moving contact and the standby power supply moving contact are of multi-sheet array structures, and two compression springs are arranged on each array element, so that the structure is favorable for improving the short-time withstand current and the working stability of the dual-power supply automatic transfer switch.
The common power supply action rotating shaft is provided with a common power supply stopping mechanism, the common power supply stopping mechanism comprises a common power supply stopping rod arranged on the common power supply action rotating shaft, a common power supply closing stopping shaft and a common power supply separating stopping shaft are arranged on two sides of the common power supply stopping rod, and the common power supply closing stopping shaft and the common power supply separating stopping shaft are fixed on a stopping mounting plate of the dual-power-supply automatic transfer switch through a shaft plate device in an equilateral triangle shape, so that when the common power supply performs closing conversion, the common power supply action rotating shaft is limited on the common power supply closing stopping shaft, and when the common power supply performs separating conversion, the common power supply action rotating shaft is limited on the common power supply separating stopping shaft;
the standby power supply action rotating shaft is provided with a standby power supply gear stopping mechanism, and the gear stopping mechanism of the standby power supply is identical to the gear stopping mechanism of the common power supply in structure.
Further arranged, the common power supply action rotating shaft end is provided with a common power supply position indication deflector rod device, the standby power supply position indicating deflector rod device is arranged at the action rotating shaft end of the standby power supply, the structure of the common power supply position indicating deflector rod device is the same as that of the standby power supply position indicating deflector rod device, and the common power supply position indicating deflector rod device comprises a position indicator, a fixed wheel, a flat key and an auxiliary switch deflector rod, the fixed wheel is connected with the common power supply action rotating shaft or the standby power supply action rotating shaft into a whole through a flat key, the position indicator is arranged on the fixed wheel, the auxiliary switch deflector rod is U-shaped, one end of the auxiliary switch deflector rod is arranged at the action rotary shaft end of the common power supply or the action rotary shaft end of the standby power supply, the other end of the auxiliary switch deflector rod is arranged as the auxiliary switch deflector rod, when the power supply conversion of the dual-power automatic transfer switch is completed, the shifting rod arranged on the action rotating shaft acts to disconnect the auxiliary switch at the side of the shifting rod, so that the driving electromagnet of the common power supply or the standby power supply is powered off.
Further setting, when the dual-power automatic transfer switch needs to be manually operated, the manual operation handle insertion position indicator configured for the dual-power automatic transfer switch can realize various working conditions of normal closing, standby closing, normal opening, standby opening and the like of the manual operation dual-power automatic transfer switch, the design simplifies the structure of the dual-power automatic transfer switch, and the manual operation is very convenient.
And an interlocking connecting rod is arranged between the force applying arm of the common power transmission lever and the force applying arm of the standby power transmission lever, so that when the dual-power automatic transfer switch is used for power conversion, if the common power is in an opening state, the standby power is necessarily in a closing state, and if the common power is in a closing state, the standby power is necessarily in the opening state, thereby avoiding the occurrence of short circuit accidents inside the dual-power automatic transfer switch.
Further setting, power action pivot commonly used and stand-by power supply action pivot are provided with spring interlock between the pivot, spring interlock include last push rod, push rod down, compression spring and power interlock crank commonly used, stand-by power supply interlock crank, push rod down cup joint in the last push rod go up the push rod and push rod down between the cover establish compression spring, last push rod through power interlock crank commonly used and power action pivot articulated, push rod down through stand-by power interlock crank and stand-by power supply action pivot articulated, like this, work as power action pivot commonly used is in the combined floodgate position, when stand-by power supply action pivot is in the separating brake position, power contact four-bar linkage mechanism commonly used, stand-by power supply contact four-bar linkage mechanism and under spring interlock's effect, power action pivot commonly used will be in stable combined floodgate position, the standby power supply action rotating shaft is in a stable brake separating position; when the standby power supply action rotating shaft is in a switching-on position and the common power supply action rotating shaft is in a switching-off position, the standby power supply action rotating shaft is in a stable switching-on position and the common power supply action rotating shaft is in a stable switching-off position under the action of the common power supply contact four-bar mechanism, the standby power supply contact four-bar mechanism and the spring interlocking device; when the common power supply action rotating shaft and the standby power supply action rotating shaft are both in the brake separating position, the common power supply action rotating shaft and the standby power supply action rotating shaft are interlocked in the stable brake separating position under the action of the common power supply contact four-bar mechanism, the standby power supply contact four-bar mechanism and the spring interlocking device.
The PC-level heavy-current dual-power automatic transfer switch suitable for two-stage work comprises a common power supply electromagnet driving mechanism or a standby power supply electromagnet driving mechanism, and a common power supply contact arc extinguishing mechanism and a standby power supply contact arc extinguishing mechanism which are identical in structure;
the common power supply electromagnet driving mechanism or the standby power supply electromagnet driving mechanism comprises a driving electromagnet, a transmission connecting rod, a transmission lever and a common power supply action rotating shaft or a standby power supply action rotating shaft which is provided with a rotating shaft transmission gear;
the driving electromagnet is arranged on a mounting base plate with double power supplies, a thrust coil and a tension coil are arranged in the driving electromagnet, an action iron core is sleeved in the thrust coil and the tension coil, a transmission connecting rod is hinged to the end of the action iron core, the other end of the transmission connecting rod is hinged to a force application end of a transmission lever, a resistance end of the transmission lever is provided with a lever transmission gear, the lever transmission gear is meshed with a rotating shaft transmission gear arranged on a common power supply action rotating shaft or a standby power supply action rotating shaft, and the lever transmission gear and the rotating shaft transmission gear are transmitted at a transmission ratio smaller than 1;
the common power supply contact arc extinguishing mechanism comprises a common power supply action rotating shaft and a common power supply contact four-bar linkage, an upper connecting rod of the common power supply contact four-bar linkage is arranged on the common power supply action rotating shaft, a lower connecting rod of the common power supply contact four-bar linkage is hinged to the upper connecting rod end of the common power supply contact four-bar linkage, a common power supply moving contact is hinged to the other end of the lower connecting rod of the common power supply contact four-bar linkage, a common power supply arc extinguishing cover is arranged at the common power supply moving contact and the common power supply static contact, and when the common power supply action rotating shaft is located at a switching-on position, an included angle between the upper connecting rod of the common power supply contact four-bar linkage and the lower connecting rod of the;
the contact arc extinguishing mechanism of the standby power supply comprises a standby power supply action rotating shaft and a standby power supply contact four-bar linkage, an upper connecting rod of the standby power supply contact four-bar linkage is arranged on the standby power supply action rotating shaft, the upper connecting rod end of the standby power supply contact four-bar linkage is hinged with a lower connecting rod of the standby power supply contact four-bar linkage, a standby power supply moving contact is hinged to the other end of the lower connecting rod of the standby power supply contact four-bar linkage, a standby power supply arc extinguishing cover is arranged at the position of the standby power supply moving contact and the position of the static contact, and when the standby power supply action rotating shaft is located at a switching-on position, an included angle between the upper connecting rod of the standby power supply contact four-bar linkage and the lower;
the common power supply moving contact and the standby power supply moving contact are in a multi-sheet array structure, and two compression springs are arranged on each array element, so that the structure is favorable for improving the short-time withstand current and the working stability of the dual-power supply automatic transfer switch;
further, the common power supply action rotating shaft and the standby power supply action rotating shaft are provided with gear stopping mechanisms;
the stop mechanism comprises a common power supply stop lever arranged on a common power supply action rotating shaft and a standby power supply stop lever arranged on a standby power supply action rotating shaft, wherein the common power supply stop lever is arranged on the outer side of the common power supply stop lever, the standby power supply stop lever is arranged on the outer side of the standby power supply stop lever, and the stop lever is fixed on a stop mounting plate of the dual-power-supply automatic transfer switch through a shaft plate device in an equilateral triangle shape.
The utility model discloses a power supply action pivot end or stand-by power supply action pivot end are provided with power position indication driving lever device commonly used, including position indicator, tight pulley, parallel key, auxiliary switch driving lever, the tight pulley even as an organic whole through parallel key and commonly used power supply action pivot or stand-by power supply action pivot, position indicator set up on the tight pulley, the auxiliary switch driving lever become the U-shaped, set up and be in commonly used power supply action pivot end or stand-by power supply action pivot end, the other end sets up to the auxiliary switch driving lever, and when dual power automatic transfer switch's power conversion completion back, its driving lever action of installing in commonly used power supply action pivot or stand-by power supply action pivot is accomplished, breaks off the auxiliary switch of driving lever side and makes the driving electromagnet outage of power supply driving electromagnet or stand-by power supply commonly used.
The dual-power automatic transfer switch is further arranged, when manual operation is required to be carried out on the dual-power automatic transfer switch, a manual operation handle which is equipped with the dual-power automatic transfer switch is inserted into a common power position indicator or a standby power position indicator, so that two working conditions of normal closing, standby closing, normal closing and standby closing of the manual operation dual-power automatic transfer switch can be realized, the structure of the dual-power automatic transfer switch is simplified by the design, and the manual operation is also very convenient.
A rotating shaft linkage rod is arranged between the common power supply action rotating shaft and the standby power supply action rotating shaft;
further setting up, common power supply stops pin and stand-by power supply and stops the pin and set up to bilayer structure, and the inlayer is for stopping the fender usefulness, and the skin is articulated pivot gangbar, make common power supply action pivot, stand-by power supply action pivot, common power supply stop the pin, stand-by power supply stops the pin and pivot gangbar and constitutes parallelogram link mechanism to when guaranteeing that power supply closes a floodgate, stand-by power supply is in the separating brake state, during the separating brake of common power supply, stand-by power supply is in the combined floodgate state, has avoided the emergence of the inside short circuit accident of dual supply automatic transfer switch like this, this kind of device simple structure, the interlocking is reliable.
The PC-level high-current dual-power automatic transfer switch with the structure has the beneficial effects that:
because the power conversion of the dual-power automatic transfer switch adopts gear transmission conversion, and the transmission ratio is less than 1, a faster and larger transmission torque can be obtained on the action rotating shaft of the dual-power automatic transfer switch, and simultaneously, because the action rotating shaft is rigidly connected with the upper connecting rod of the contact four-bar mechanism, a faster action speed can be obtained to switch on and switch off the dual-power automatic transfer switch, which are favorable for the rapid arc extinguishing of the dual-power automatic transfer switch, and simultaneously, the contact system adopts the four-bar mechanism, the included angle designed between the upper connecting rod and the lower connecting rod of the four-bar mechanism of the dual-power automatic transfer switch when the power conversion is realized is more than 180 degrees, under the combined action of the reaction force of a moving contact spring and a spring interlocking device, the switching on and the switching off of the dual-power automatic transfer switch are stable and reliable, and the short-time current tolerance of the dual-, the work stability of dual-power automatic transfer switch is improved, and simultaneously dual-power automatic transfer switch is when carrying out manual operation, with manual operation handle insert dual-power automatic transfer switch's position indicator can, from overall structure, this kind of PC level heavy current dual-power automatic transfer switch's simple structure, the stable performance is reliable.
Drawings
FIG. 1 is a three-stage internal overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the electromagnet driving mechanism of FIG. 1;
FIG. 3 is a schematic structural view of an electromagnet driving mechanism and a contact four-bar linkage mechanism according to the present invention;
FIG. 4 is a schematic view of the spring interlock device of FIG. 1 in a ready to use configuration;
FIG. 5 is a schematic view of the spring interlock device of FIG. 1 in a normally disengaged configuration;
FIG. 6 is a schematic view of the spring interlock device of FIG. 1 in a normally separated configuration;
FIG. 7 is a schematic structural view of a three-stage park gear device according to the present invention.
FIG. 8 is a schematic structural view of a two-stage electromagnet driving mechanism according to the present invention;
FIG. 9 is a schematic view of a two-stage shift device and a linkage according to the present invention;
FIG. 10 is a schematic view of the indicating lever device and the handle according to the present invention;
FIG. 11 is a structural view of the shifter lever device of FIG. 10;
FIG. 12 is a block diagram of the spring interlock device of FIG. 1;
FIG. 13 is a view of the upper sleeve of FIG. 12;
fig. 14 is a view showing the construction of the lower set of fig. 12.
Detailed Description
It should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or part must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "common power source" and "backup power source" are used only for description of a location with respect to the drawing sheet, and are not to be understood as indicating or implying an inherent characteristic name of the location in actual use.
The present invention will be further described below with reference to fig. 1 to 14 by way of specific examples.
As shown in fig. 1 to fig. 3, a PC-level high-current dual-power automatic transfer switch suitable for three-stage operation of normal, standby, normal and standby comprises a normal power supply 2 and a standby power supply 4 with the same structure, a normal power supply electromagnet driving mechanism 20 and a standby power supply electromagnet driving mechanism 40, and a normal power supply contact arc extinguishing mechanism and a standby power supply contact arc extinguishing mechanism with the same structure.
Further, the common power supply electromagnet driving mechanism 20 comprises a common power supply driving electromagnet 203, a common power supply transmission connecting rod 202, a common power supply transmission lever 201 and a common power supply action rotating shaft 205 provided with a common power supply rotating shaft transmission gear 206;
further, the electromagnet driving mechanism 40 of the standby power supply comprises a standby power supply driving electromagnet 403, a standby power supply transmission connecting rod 402, a standby power supply transmission lever 401 and a standby power supply action rotating shaft 405 provided with a standby power supply rotating shaft transmission gear 406;
further, the common power driving electromagnet 230 is arranged on the installation bottom plate 6 of the dual power automatic transfer switch, a common power thrust coil 2032 and a common power tension coil 2033 are arranged in the common power driving electromagnet 203, a common power action iron core 2031 is sleeved in the common power thrust coil 2032 and the common power tension coil 2033, a common power transmission connecting rod 202 is hinged at the end of the common power action iron core 2031, the other end of the common power transmission connecting rod 202 is hinged at the force application end of the common power transmission lever 201, when the thrust coil 2032 of the common power driving electromagnet 203 is electrified, the action iron core 2031 pushes the transmission connecting rod 202 to rotate the common power action rotating shaft 205 to close the common power moving contact 2052 of the dual power automatic transfer switch, and when the tension coil 2033 of the common power driving electromagnet 203 is electrified, the action iron core 2031 pulls the transmission connecting rod 202 to make the common power moving contact 2 2052 of the dual power automatic transfer switch Separating brake, the resistance end of power transmission lever 201 commonly used is provided with power lever driving gear 2011 commonly used, power lever driving gear 2011 commonly used meshes with power pivot drive gear 206 commonly used of setting on power action pivot 205 commonly used, power transmission lever commonly used adopts gear drive with the power pivot commonly used, and two power automatic transfer switch can obtain enough big transmission moment when power conversion like this, power lever driving gear 2011 commonly used transmits with the drive ratio that power pivot drive gear 206 commonly used is less than 1, and like this, two power automatic transfer switch can obtain faster rotational speed on power action pivot 205 commonly used when power conversion, are favorable to two power automatic transfer switch's electric arc extinguishing and job stabilization nature.
Further, the driving electromagnet 403 of the standby power supply and the driving electromagnet 203 of the common power supply are symmetrically arranged on the installation bottom plate 6 of the dual power supply automatic transfer switch, a standby power supply thrust coil 4032 and a standby power supply tension coil 4033 are arranged in the standby power supply driving electromagnet 403, a standby power supply action iron core 4031 is sleeved in the standby power supply thrust coil 4032 and the standby power supply tension coil 4033, a standby power supply transmission connecting rod 402 is hinged at one end of the standby power supply action iron core 4031, the other end of the standby power supply transmission connecting rod 402 is hinged at the force application end of the standby power supply transmission lever 401, when the thrust coil 4032 of the standby power supply driving electromagnet is electrified, the standby power supply action iron core 4031 pushes the transmission connecting rod 402 to rotate the standby power supply action rotating shaft 405 to enable the standby power supply moving contact of the dual power supply automatic transfer switch to be switched on, when the tension coil 4033 of the, the backup power supply action iron core 4031 will pull the transmission link 402 to open the backup power supply moving contact 4052 of the dual power supply automatic transfer switch, the resistance end of the standby power supply transmission lever 401 is provided with a standby power supply lever transmission gear which is meshed with a standby power supply rotating shaft transmission gear 406 arranged on a standby power supply action rotating shaft 405, the standby power transmission lever 401 and the standby power action rotating shaft 405 adopt gear transmission, therefore, the double-power automatic transfer switch can obtain enough transfer torque when the power is switched, the standby power lever transmission gear and the standby power rotating shaft transmission gear are transmitted in a transmission ratio smaller than 1, thus, the dual-power automatic transfer switch can obtain a faster rotating speed on the standby power supply rotating shaft 405 during power conversion, and the electrical arc extinguishing and the working stability of the dual-power automatic transfer switch are facilitated.
Further, as shown in fig. 1, 3 and 4, the contact arc extinguishing mechanism of the common power supply comprises a common power supply action rotating shaft 205 and a common power supply contact four-bar linkage, an upper connecting rod 2051 of the common power supply contact four-bar linkage is arranged on the common power supply action rotating shaft 205, a lower connecting rod 2054 is hinged at one end of the upper connecting rod 2051, a common power supply moving contact 2052 is hinged at the other end of the lower connecting rod 2054, a common power supply arc extinguishing cover 204 is arranged at the positions of the common power supply moving contact 2052 and the fixed contact 2055, and when the common power supply action rotating shaft 205 is at a switch-on position, an included angle between the upper connecting rod 2051 and the lower connecting rod 2054 of the common power supply contact four-bar linkage is greater than 180 degrees, so that after the common power supply contact four-bar linkage passes a dead point, the switch-on position of the moving contact 2052 is locked firmly by means of a reaction force of a spring 205, The static contact is not easy to bounce, and the short-time withstand current and the working stability of the dual-power automatic transfer switch are improved.
The contact arc extinguishing mechanism of the standby power supply further comprises a standby power supply action rotating shaft 405 and a standby power supply contact four-bar mechanism, an upper connecting rod 4051 of the standby power supply contact four-bar mechanism is arranged on the standby power supply action rotating shaft 405, a lower connecting rod 4054 is hinged to the end of the upper connecting rod 4051, a standby power supply moving contact 4052 is hinged to the other end of the lower connecting rod 4054, a standby power supply arc extinguishing cover is arranged at the positions of the standby power supply moving contact 4052 and the static contact 4055, when the standby power supply action rotating shaft 405 is in a switching-on position, an included angle between the upper connecting rod 4051 and the lower connecting rod 4054 of the standby power supply contact four-bar mechanism is larger than 180 degrees, and therefore, after the standby power supply contact four-bar mechanism passes a dead point, the moving contact is locked at the switching-on position by means of the reactive force of a spring on, The static contact is not easy to bounce, and the short-time withstand current and the working stability of the dual-power automatic transfer switch are improved.
Further, the common power moving contact 2052 and the standby power moving contact 4052 are in a multi-sheet array structure, and each array element is provided with two compression springs 2053, so that the structure is favorable for improving the short-time current tolerance and the working stability of the dual-power automatic transfer switch.
Further, as shown in fig. 7, the common power source action rotating shaft 205 is provided with a common power source stopping mechanism 207, the common power source stopping mechanism 207 includes a common power source stopping rod 208 disposed on the common power source action rotating shaft 205, a common power source closing stopping stop shaft 2071 and a common power source separating stop shaft 2073 are disposed on two sides of the common power source stopping rod 208, the common power source closing stopping stop shaft 2071 and the common power source separating stop shaft 2073 are fixed on the stop mounting plate 240 of the dual power source automatic transfer switch through an equilateral triangle shaft plate device and fastening bolts 2072, so that when the common power source is switched on, the common power source action rotating shaft 205 is limited at the common power source closing stopping stop shaft 2071 through the clockwise rotation of the common power source stopping rod 208, and when the common power source is switched off, the common power source action rotating shaft 205 is limited at the counterclockwise rotation of the common power source stopping rod 208 The limit is on the brake-separating stop shaft 2073 of the common power supply.
Similarly, the standby power supply stopping mechanism 407 is disposed on the standby power supply action rotating shaft 405, the standby power supply stopping mechanism 407 includes a standby power supply stopping rod 408 disposed on the standby power supply action rotating shaft 405, a standby power supply closing stopping shaft 4071 and a standby power supply opening stopping shaft 4073 are disposed on two sides of the standby power supply stopping rod 408, the standby power supply closing stopping shaft 4071 and the standby power supply opening stopping shaft 4073 are fixed on the stopping mounting plate 240 of the dual power supply automatic transfer switch through a fastening bolt 4072 by an equilateral triangle shaft plate device, so that when the standby power supply performs closing conversion, the standby power supply action rotating shaft 405 is limited at the standby power supply closing stopping shaft 4071 by the counterclockwise rotation of the standby power supply stopping rod 408, and when the standby power supply performs opening conversion, the standby power supply action rotating shaft 405 is limited at the standby power supply by the clockwise rotation of the standby power supply stopping rod 408 The brake-separating stop shaft 4073.
Further, as shown in fig. 10 and 11, a common power position indicating lever device is disposed at the end of the common power operation rotating shaft 205, the common power position indicating lever device includes a position display panel 8, a common power position indicator 2022, a common power fixing wheel 2023, a common power flat key 2024, and a common power auxiliary switch lever 2021, the common power fixing wheel 2023 is connected with the common power operation rotating shaft 205 through the common power flat key 2024, the common power position indicator 2022 is disposed on the common power fixing wheel 2023, the common power auxiliary switch lever 2021 is U-shaped, one end of the common power auxiliary switch lever is disposed at the shaft end of the common power operation rotating shaft 205, the other end of the common power auxiliary switch lever is disposed at the shaft end of the common power operation rotating shaft 205, and after the dual power operation is switched, the common power auxiliary switch lever 2021 installed at the shaft end of the common power operation rotating shaft 205 operates, the common power auxiliary switch 201 on the two sides of the deflector rod is switched off, so that the pulling force coil or the pushing force coil of the common power driving electromagnet is powered off.
Similarly, the standby power supply position indication lever device is arranged at the end of the standby power supply action rotating shaft 405, the standby power supply position indication deflector rod device comprises a position display board 8, a standby power supply position indicator 4022, a standby power supply fixing wheel, a standby power supply flat key and a standby power supply auxiliary switch deflector rod 4021, the backup power supply fixed wheel is connected with the backup power supply action rotating shaft 405 into a whole through a backup power supply flat key, the standby power supply position indicator 4022 is arranged on a standby power supply fixing wheel, the standby power supply auxiliary switch poking rod 4021 is U-shaped, one end of the standby power supply auxiliary switch poking rod is arranged at the shaft end of the standby power supply action rotating shaft 405, the other end of the standby power supply auxiliary switch poking rod is arranged, after the double power supply action conversion is completed, the standby power supply auxiliary switch deflector rod 4021 arranged at the shaft end of the standby power supply action rotating shaft 405 acts to disconnect the standby power supply auxiliary switch 401 at the two sides of the deflector rod, so that the standby power supply drives the tension coil or the thrust coil of the electromagnet to be powered off.
Further setting, when needs are right dual supply automatic change over switch carry out manual operation when, insert power position indicator 2022 commonly used with manual operation handle 5 of dual supply automatic change over switch configuration or stand-by power supply position indicator 4022 can realize that manual operation dual supply automatic change over switch's various operating modes such as normally close, stand-by are normally closed or normally open, stand-by are opened, this kind of design has simplified dual supply automatic change over switch's structure, and manual operation is also very convenient.
Further, as shown in fig. 1 and fig. 2, an interlocking link 1 is arranged between the force applying arm of the common power transmission lever 201 and the force applying arm of the standby power transmission lever 401, so that when the dual-power automatic transfer switch is used for power conversion, if the common power is in the opening position, the standby power is necessarily in the closing position, and if the common power is in the opening position, the standby power is necessarily in the opening position, and the simple interlocking device avoids the occurrence of short circuit accidents inside the dual-power automatic transfer switch.
Further, as shown in fig. 1, fig. 12, fig. 13, and fig. 14, a spring interlock device 3 is disposed between the common power supply operation rotating shaft 205 and the standby power supply operation rotating shaft 405, the spring interlock device 3 includes an upper push rod 301, a lower push rod 303, a compression spring 302, a common power supply interlock crank 304, and a standby power supply interlock crank 305, the lower push rod 303 is sleeved in a sleeving hole 3011 of the upper push rod 301 through a sleeve rod 3031, the compression spring 302 is sleeved between the upper push rod 301 and the lower push rod 303, the upper push rod 301 is hinged to the common power supply operation rotating shaft 205 through the common power supply interlock crank 304, and the lower push rod 303 is hinged to the standby power supply operation rotating shaft 405 through the standby power supply interlock crank 305;
as shown in fig. 4, when the common power source operating rotating shaft 205 is in the switching-on position and the standby power source operating rotating shaft 405 is in the switching-off position, the common power source operating rotating shaft will be in the stable switching-on position and the standby power source operating rotating shaft will be in the stable switching-off position under the action of the compression spring 302 in the common power source contact four-bar mechanism, the standby power source contact four-bar mechanism and the spring interlock device;
as shown in fig. 5, when the backup power source operation rotating shaft 405 is in the closing position and the common power source operation rotating shaft 205 is in the opening position, the backup power source operation rotating shaft will be in the stable closing position and the common power source operation rotating shaft will be in the stable opening position under the action of the compression springs in the common power source contact four-bar linkage mechanism, the backup power source contact four-bar linkage mechanism and the spring interlock device;
as shown in fig. 6, when the common power source operating rotating shaft 205 and the backup power source operating rotating shaft 405 are both in the opening position, the common power source operating rotating shaft 205 and the backup power source operating rotating shaft 405 are both interlocked in the stable opening position under the action of the compression springs in the common power source contact four-bar linkage mechanism, the backup power source contact four-bar linkage mechanism and the spring interlocking device.
The PC-level heavy-current dual-power automatic transfer switch suitable for normal and standby operation and normal and standby operation comprises a normal power supply electromagnet driving mechanism or a standby power supply electromagnet driving mechanism, and a normal power supply contact arc extinguishing mechanism and a standby power supply contact arc extinguishing mechanism which are identical in structure;
as shown in fig. 8, the common power supply electromagnet driving mechanism or the standby power supply electromagnet driving mechanism is installed on the installation bottom plate 6 of the dual power supply automatic transfer switch, and the common power supply electromagnet driving mechanism or the standby power supply electromagnet driving mechanism includes a driving electromagnet 203, a transmission connecting rod 202, a transmission lever 201, and an action rotating shaft 205 provided with a rotating shaft transmission gear 206;
the structures of the common power supply contact arc extinguishing mechanism and the standby power supply contact arc extinguishing mechanism are the same as those of the common power supply contact arc extinguishing mechanism and the standby power supply contact arc extinguishing mechanism of the PC-level high-current dual-power-supply automatic transfer switch working in three sections, and detailed description is omitted here.
Further, as shown in fig. 9, the common power supply action spindle 205 and the standby power supply action spindle 405 are provided with a stop mechanism of the dual power supply automatic transfer switch, the stop mechanism includes a common power supply stop lever 208 disposed on the common power supply action spindle 205, and a standby power supply stop lever 408 disposed on the standby power supply action spindle 405, a common power supply stop shaft 2071 is disposed outside the common power supply stop lever 208, a standby power supply stop shaft 4071 is disposed outside the standby power supply stop lever 408, the common power supply stop shaft 2071 is fixed on the stop mounting plate 240 outside the dual power supply automatic transfer switch common power supply stop lever 208 by two fixing bolts 2072 through a shaft plate device 207 in an equilateral triangle shape, the standby power supply stop shaft 4071 is fixed on the stop mounting plate 240 outside the dual power supply automatic transfer switch standby power supply stop lever 408 through two fixing bolts 4072 through a shaft plate device 407 in an equilateral triangle shape, thus, when the dual-power automatic transfer switch performs power conversion, the common power operation spindle 205 or the standby power operation spindle 405 is limited on the stop spindle 2071 or 4071 at two sides by the common power stop lever 208 or the standby power stop lever 408, so as to complete power conversion of the dual-power automatic transfer switch;
further setting, common power supply stop lever and stand-by power supply stop lever set up to bilayer structure, and the inlayer is for stopping the fender usefulness, and the skin is articulated pivot gangbar 7, make common power supply action pivot 205, stand-by power supply action pivot 405, common power supply stop lever 208, stand-by power supply stop lever 408 and pivot gangbar 7 constitute parallelogram mechanism to guarantee when common power supply closes the floodgate, stand-by power supply is in the separating brake state, and during common power supply separating brake, stand-by power supply is in the combined floodgate state, has avoided the emergence of the inside short circuit accident of dual supply automatic transfer switch like this, common power supply stop lever and stand-by power supply stop lever adopt bilayer structure, and the lower floor is stopped the fender usefulness, and the upper strata is used as the pivot gangbar, simple structure, and job stabilization is reliable.
The power position indicating deflector rod device is arranged at the end of the common power supply action rotating shaft or the standby power supply action rotating shaft, and the structures of the power position indicating deflector rod device and the common power supply position indicating deflector rod device and the standby power supply position indicating deflector rod device of the three-section working PC-level high-current dual-power-supply automatic transfer switch are the same, so that the detailed description is omitted.
Further setting, dual supply automatic change over switch be provided with manual operation handle, it is right as needs dual supply automatic change over switch carry out manual operation when, with the manual operation handle that dual supply automatic change over switch was equipped with insert power position indicator or stand-by power supply's commonly used position indicator can realize that dual supply automatic change over switch of manual operation normally closes, is equipped with to open or normally open, two kinds of operating modes that are equipped with, this kind of design has simplified dual supply automatic change over switch's structure, manual operation is also very convenient.
It should be noted that: the foregoing examples are given by way of illustration only and are not intended to be limiting of the present invention, and it will be apparent to those of ordinary skill in the art that various changes and modifications may be made in the foregoing examples without departing from the scope of the invention.
Claims (8)
1. A PC-level heavy-current dual-power automatic transfer switch comprises a common power supply electromagnet driving mechanism and a standby power supply electromagnet driving mechanism which are identical in structure, and a common power supply contact arc extinguishing mechanism and a standby power supply contact arc extinguishing mechanism which are identical in structure;
the method is characterized in that: the common power supply electromagnet driving mechanism comprises a common power supply driving electromagnet, a common power supply transmission connecting rod, a common power supply transmission lever and a common power supply action rotating shaft provided with a common power supply rotating shaft transmission gear;
the standby power supply electromagnet driving mechanism comprises a standby power supply driving electromagnet, a standby power supply transmission connecting rod, a standby power supply transmission lever and a standby power supply action rotating shaft provided with a standby power supply rotating shaft transmission gear;
the common power supply driving electromagnet is arranged on an installation bottom plate of the dual-power supply automatic transfer switch, a common power supply thrust coil and a common power supply tension coil are arranged in the common power supply driving electromagnet, a common power supply action iron core is sleeved in the common power supply thrust coil and the common power supply tension coil, a common power supply transmission connecting rod is hinged to the end of the common power supply action iron core, the other end of the common power supply transmission connecting rod is hinged to a force application end of a common power supply transmission lever, a common power supply lever transmission tooth is arranged at a resistance end of the common power supply transmission lever, the common power supply lever transmission tooth is meshed with a common power supply rotating shaft transmission gear arranged on a common power supply action rotating shaft, and the common power supply lever transmission tooth and the common power supply rotating shaft transmission gear are transmitted at a transmission;
the standby power supply driving electromagnet and the common power supply driving electromagnet are symmetrically arranged on the mounting bottom plate of the dual-power automatic transfer switch, a standby power supply thrust coil and a standby power supply tension coil are arranged in the standby power supply driving electromagnet, a standby power supply action iron core is sleeved in the standby power supply thrust coil and the standby power supply tension coil, the standby power supply action iron core end is hinged with a standby power supply transmission connecting rod, the other end of the standby power supply transmission connecting rod is hinged with the force application end of a standby power supply transmission lever, the resistance end of the standby power supply transmission lever is provided with a standby power supply lever transmission gear which is meshed with a standby power supply rotating shaft transmission gear arranged on the standby power supply action rotating shaft, the standby power supply lever transmission gear and the standby power supply rotating shaft transmission gear are in transmission at a transmission ratio smaller than 1;
the common power supply contact arc extinguishing mechanism comprises a common power supply action rotating shaft and a common power supply contact four-bar linkage, an upper connecting rod of the common power supply contact four-bar linkage is arranged on the common power supply action rotating shaft, a lower connecting rod of the common power supply contact four-bar linkage is hinged to the upper connecting rod end of the common power supply contact four-bar linkage, a common power supply moving contact is hinged to the other end of the lower connecting rod of the common power supply contact four-bar linkage, a common power supply arc extinguishing cover is arranged at the common power supply moving contact and the common power supply static contact, and when the common power supply action rotating shaft is located at a switching-on position, an included angle between the upper connecting rod of the common power supply contact four-bar linkage and the lower connecting rod of the;
the standby power supply contact arc extinguishing mechanism comprises a standby power supply action rotating shaft and a standby power supply contact four-bar linkage, an upper connecting rod of the standby power supply contact four-bar linkage is arranged on the standby power supply action rotating shaft, the upper connecting rod end of the standby power supply contact four-bar linkage is hinged with a lower connecting rod of the standby power supply contact four-bar linkage, a standby power supply moving contact is hinged to the other end of the lower connecting rod of the standby power supply contact four-bar linkage, a standby power supply arc extinguishing cover is arranged at the position of the standby power supply moving contact and the position of the static contact, and when the standby power supply action rotating shaft is located at a switching-on position, an included angle between the upper connecting rod of the standby power supply contact four-bar linkage and the lower connecting;
the common power supply action rotating shaft is provided with a common power supply gear stopping mechanism, and the standby power supply action rotating shaft is provided with a standby power supply gear stopping mechanism;
a common power supply position indication deflector rod device is arranged at the common power supply action rotating shaft end, and a standby power supply position indication deflector rod device is arranged at the standby power supply action rotating shaft end;
an interlocking connecting rod is arranged between the force applying arm of the common power supply transmission lever and the force applying arm of the standby power supply transmission lever;
a spring interlocking device is arranged between the common power supply action rotating shaft and the standby power supply action rotating shaft;
the PC-level heavy-current dual-power-supply automatic transfer switch is provided with a manual operation handle, and the manual operation handle can be inserted into a position indicator of a common power supply position indication deflector rod device or a position indicator of a standby power supply position indication deflector rod device so as to realize three-section working conditions of normal switching, standby switching, normal distribution and standby distribution of the manual operation dual-power-supply automatic transfer switch.
2. The PC-class high-current dual-power automatic transfer switch of claim 1, wherein: spring interlock include last push rod, push down rod, compression spring and power supply interlocking crank commonly used, stand-by power supply interlocking crank, the push down rod cup joint the last push rod in last push rod and push down rod between the cover establish compression spring, last push rod through power supply interlocking crank commonly used with power supply action pivot articulated, the push down rod through stand-by power supply interlocking crank and stand-by power supply action pivot articulated.
3. The PC-class high-current dual-power automatic transfer switch of claim 1, wherein: the common power supply stop mechanism comprises a common power supply stop rod arranged on a common power supply action rotating shaft, common power supply stop shafts are arranged on two sides of the common power supply stop rod, and the common power supply stop shafts are fixed on a stop mounting plate of the dual-power supply automatic change-over switch through an equilateral triangle shaft plate device.
4. The PC-class high-current dual-power automatic transfer switch of claim 1, wherein: the standby power supply gear stopping mechanism comprises a standby power supply gear stopping rod arranged on a standby power supply action rotating shaft, standby power supply gear stopping shafts are arranged on two sides of the standby power supply gear stopping rod, and the standby power supply gear stopping shafts are fixed on a gear stopping mounting plate of the dual-power supply automatic change-over switch through an equilateral triangle shaft plate device.
5. The PC-level heavy-current dual-power-supply automatic transfer switch as claimed in claim 1, comprising a common power supply electromagnet driving mechanism or a standby power supply electromagnet driving mechanism with the same structure, a common power supply contact arc extinguishing mechanism and a standby power supply contact arc extinguishing mechanism with the same structure;
the method is characterized in that: the common power supply electromagnet driving mechanism or the standby power supply electromagnet driving mechanism comprises a driving electromagnet, a transmission connecting rod, a transmission lever and a common power supply action rotating shaft or a standby power supply action rotating shaft which is provided with a rotating shaft transmission gear;
the driving electromagnet is arranged on an installation bottom plate of the dual-power automatic transfer switch, a thrust coil and a tension coil are arranged in the driving electromagnet, an action iron core is sleeved in the thrust coil and the tension coil, a transmission connecting rod is hinged to the end of the action iron core, the other end of the transmission connecting rod is hinged to a force application end of a transmission lever, a resistance end of the transmission lever is provided with a lever transmission tooth, the lever transmission tooth is meshed with a rotating shaft transmission gear arranged on a common power supply action rotating shaft or a standby power supply action rotating shaft, and the lever transmission tooth and the rotating shaft transmission gear are in transmission at a transmission ratio smaller than 1;
the common power supply contact arc extinguishing mechanism comprises a common power supply action rotating shaft and a common power supply contact four-bar linkage, an upper connecting rod of the common power supply contact four-bar linkage is arranged on the common power supply action rotating shaft, a lower connecting rod of the common power supply contact four-bar linkage is hinged to the upper connecting rod end of the common power supply contact four-bar linkage, a common power supply moving contact is hinged to the other end of the lower connecting rod of the common power supply contact four-bar linkage, a common power supply arc extinguishing cover is arranged at the common power supply moving contact and the common power supply static contact, and when the common power supply action rotating shaft is located at a switching-on position, an included angle between the upper connecting rod of the common power supply contact four-bar linkage and the lower connecting rod of the;
the standby power supply contact arc extinguishing mechanism comprises a standby power supply action rotating shaft and a standby power supply contact four-bar linkage, an upper connecting rod of the standby power supply contact four-bar linkage is arranged on the standby power supply action rotating shaft, the upper connecting rod end of the standby power supply contact four-bar linkage is hinged with a lower connecting rod of the standby power supply contact four-bar linkage, a standby power supply moving contact is hinged to the other end of the lower connecting rod of the standby power supply contact four-bar linkage, a standby power supply arc extinguishing cover is arranged at the position of the standby power supply moving contact and the position of the static contact, and when the standby power supply action rotating shaft is located at a switching-on position, an included angle between the upper connecting rod of the standby power supply contact four-bar linkage and the lower connecting;
the common power supply action rotating shaft and the standby power supply action rotating shaft are provided with gear stopping mechanisms, and a rotating shaft linkage rod is arranged between the common power supply action rotating shaft and the standby power supply action rotating shaft;
a power supply position indication deflector rod device is arranged at the end of the common power supply action rotating shaft or the end of the standby power supply action rotating shaft;
the dual-power automatic transfer switch is provided with a manual operation handle, the manual operation handle can be inserted into a position indicator of a common power position indication deflector rod device or a position indicator of a standby power position indication deflector rod device, so that the two-stage working condition of the manual operation dual-power automatic transfer switch, namely the normal operation, the standby operation and the normal operation and the standby operation are realized.
6. The PC-level high-current dual-power automatic transfer switch of claim 5, wherein: the gear stopping mechanisms of the common power supply action rotating shaft and the standby power supply action rotating shaft comprise a common power supply gear stopping rod arranged on the common power supply action rotating shaft, a standby power supply gear stopping rod arranged on the standby power supply action rotating shaft, and gear stopping shafts arranged on the outer sides of the common power supply gear stopping rod and the standby power supply gear stopping rod, wherein the gear stopping shafts are fixed on a gear stopping mounting plate of the dual-power-supply automatic transfer switch through a shaft plate device in an equilateral triangle;
the common power supply stop lever and the standby power supply stop lever are of a double-layer structure, the inner layer is used for stopping gears, and the outer layer is hinged with the rotating shaft linkage rod.
7. The PC-class high-current dual-power automatic transfer switch of claim 1 or claim 5, wherein: the structure of the common power supply position indication deflector rod device or the standby power supply position indication deflector rod device is completely the same, and the common power supply position indication deflector rod device or the standby power supply position indication deflector rod device comprises a position indicator, a fixed wheel, a flat key and an auxiliary switch deflector rod, wherein the fixed wheel is connected with a common power supply action rotating shaft or a standby power supply action rotating shaft into a whole through the flat key;
the manual operation handle is pulled to different angle positions of the common power supply action rotating shaft or the standby power supply action rotating shaft through the insertion position indicator, so that various working conditions of the manual operation dual-power supply automatic transfer switch are realized.
8. The PC-level high-current dual-power automatic transfer switch as claimed in claim 1 or claim 5, wherein the common power moving contact and the standby power moving contact are in a multi-sheet array structure, and each sheet of array element is provided with two compression springs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010839952.8A CN112670108A (en) | 2020-08-19 | 2020-08-19 | PC-level heavy-current dual-power automatic transfer switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010839952.8A CN112670108A (en) | 2020-08-19 | 2020-08-19 | PC-level heavy-current dual-power automatic transfer switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112670108A true CN112670108A (en) | 2021-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010839952.8A Pending CN112670108A (en) | 2020-08-19 | 2020-08-19 | PC-level heavy-current dual-power automatic transfer switch |
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| CN (1) | CN112670108A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116487207A (en) * | 2023-05-29 | 2023-07-25 | 容磁(浙江)科技有限公司 | Clapping type dual-power rapid transfer switch |
-
2020
- 2020-08-19 CN CN202010839952.8A patent/CN112670108A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116487207A (en) * | 2023-05-29 | 2023-07-25 | 容磁(浙江)科技有限公司 | Clapping type dual-power rapid transfer switch |
| CN116487207B (en) * | 2023-05-29 | 2023-09-29 | 容磁(浙江)科技有限公司 | Clapping type dual-power rapid transfer switch |
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