CN110021485A - Dual-power transfer switch - Google Patents
Dual-power transfer switch Download PDFInfo
- Publication number
- CN110021485A CN110021485A CN201810018490.6A CN201810018490A CN110021485A CN 110021485 A CN110021485 A CN 110021485A CN 201810018490 A CN201810018490 A CN 201810018490A CN 110021485 A CN110021485 A CN 110021485A
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- China
- Prior art keywords
- neutral switch
- neutral
- moving contact
- switch
- main shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/0005—Tap change devices
- H01H9/0027—Operating mechanisms
Abstract
The present invention relates to dual-power transfer switch comprising load-side phase line pole, the first phase wiretap, the second phase wiretap, load-side neutral pole, the first neutral switch and the second neutral switch.When the first phase wiretap and the second phase wiretap are turned off, first neutral switch and second neutral switch are both turned on.When the first power supply starts power supply, the first phase wiretap immediately begins to switch to conduction position, and the above-mentioned switching moment that the second neutral switch is later than the first phase wiretap starts to switch to rest position, finally in the moment of the first phase line switch conduction, the cut-off of the second neutral switch.When second source starts power supply, the second phase wiretap immediately begins to switch to conduction position, and the above-mentioned switching moment that the first neutral switch is later than the second phase wiretap starts to switch to rest position, finally in the moment of the second phase line switch conduction, the cut-off of the first neutral switch.
Description
Technical field
This application involves dual-power transfer switch, more particularly to the dual-power transfer switch of overlapping neutral.
Background technique
Dual-power transfer switch is to answer the successional requirement of power supply and be born.As people are to for electrically continuous
Property, safety, the requirement of reliability deepen continuously, dual-power transfer switch using more and more extensive.As hotel, theater are this kind of
The important public place that personnel concentrate, since interruption of power supply will cause life security that is disorder, or even jeopardizing guest.It is related
Professional standard provides that its distribution system must possess emergency power supply power supply.The missing of for another example data center, supply voltage means
The loss of data.People's dual-power transfer switch and UPS uninterruptible power supply associating power supply are to guarantee its continuity powered.So
And since in the conversion process of power supply, the neutral conductor has a temporary disconnection as other phase lines, this will cause part
The fluctuation of electricity consumption setting voltage simultaneously thereby results in influence and loss.It is such as uninterrupted in the data center of ATSE and UPS associating power supply
Power supply application in, the disconnection in short-term of the neutral conductor increases UPS part-loading goods and causes Server Restart, cause loss of data or
The serious consequences such as server damage.Reliable overlapping neutral switching will be that everybody is very concerned about and urgently, i.e., such as from commonly using
Power supply (backup power source) has an overlapping neutral time as long as possible into the conversion process of backup power source (common power supply)
And common power supply (backup power source) neutral conductor is reliably quickly cut off in conversion end.
Phase line pole is different with neutral pole structure, causes phase line from the first power supply into the conversion process of second source, in
Property pole do not disconnected simultaneously with the neutral conductor of this two power supply always.Wherein, moment exists connects simultaneously with the neutral conductor of this two power supply
The case where connecing.
The change-over switch of non-neutral line overlap structure, phase line pole and neutral pole structure are almost the same, in phase line from first
Power supply into the conversion process of second source, convert from the first power supply to second source simultaneously, and deposits in conversion process by the neutral conductor
The case where neutral pole is simultaneously switched off with the neutral conductor of this two power supply in short-term.
Summary of the invention
Therefore, the present invention provides a kind of dual-power transfer switch, comprising: load-side phase line pole, one end and load phase
Line electrical connection；First phase wiretap, one end are electrically connected with the other end of the load-side phase line pole, and selectively turn on or
End being electrically connected for the first phase line pole and the first power supply；Second phase wiretap, the other end of one end and the load-side phase line pole
Electrical connection, and selectively turn on or end being electrically connected for the second phase line pole and second source；Load-side neutral conductor pole, one
End is electrically connected with load neutral line；First neutral switch, one end are electrically connected with the other end of the load-side neutral conductor pole, and
And selectively turn on or end being electrically connected for the first neutral pole and the first power supply；Second neutral switch, one end are negative with this
The other end electrical connection of side neutral conductor pole is carried, and selectively turns on or end being electrically connected for the second neutral pole and second source
It connects, main shaft, is pivotably mounted on the shell of the dual-power transfer switch, the rotation of main shaft is enabled to make the first phase line
Switch, the second phase wiretap, the first neutral switch and the second neutral switch carry out corresponding actions and carry out on or off,
In, when the first phase wiretap and the second phase wiretap are turned off, first neutral switch and described second
Neutral switch is both turned on, wherein when the first power supply starts power supply, the first phase wiretap is immediately begun to conduction position
Switching, and the above-mentioned switching moment that the second neutral switch is later than the first phase wiretap starts to switch to rest position, finally exists
The moment of first phase line switch conduction, the cut-off of the second neutral switch, wherein when second source starts power supply, described second
Phase wiretap immediately begins to switch to conduction position, and the first neutral switch is later than the above-mentioned switching moment of the second phase wiretap
Start to switch to rest position, finally in the moment of the second phase line switch conduction, the cut-off of the first neutral switch.According to the present invention
Embodiment, first neutral switch and the second neutral switch be oppositely arranged relative to main shaft, elastic element connection
Between the first neutral switch and the second neutral switch, by the first neutral switch and the direction conducting of the second neutral switch
Position bias.
First neutral switch includes: the first neutral switch moving contact, is pivotably mounted on first neutral conductor
On switch movable contact head bracket, the first neutral switch moving contact rack is pivotably mounted on shell, the first neutral switch
Moving contact can be pivoted and be connect with the static contact of static contact and load-side neutral conductor pole with the first power supply according to the pivot of main shaft
Touching is detached from, thus the first power supply of on or off；First neutral switch moving contact drives cam, is fixedly mounted on main shaft
On, it can be rotated together with main shaft；First connecting rod, one end are hinged on the first neutral switch moving contact rack, the other end
Around the pivoting centre of main shaft, and third pin is placed in the first cam path of the first neutral switch moving contact driving cam,
Relatively to be moved when main shaft is pivoted along first cam path.
Second neutral switch includes: the second neutral switch moving contact, is pivotably mounted on second neutral conductor
On switch movable contact head bracket, the second neutral switch moving contact rack is pivotably mounted on shell, the second neutral switch
Moving contact can be pivoted and be connect with the static contact of static contact and load-side neutral conductor pole with second source according to the pivot of main shaft
Touching is detached from, thus on or off second source；Second neutral switch moving contact drives cam, is fixedly mounted on main shaft
On, it can be rotated together with main shaft, second connecting rod, one end is hinged on the second neutral switch moving contact rack, the other end
Around the pivoting centre of main shaft, and the 4th pin is placed in the second cam path of the second neutral switch moving contact driving cam,
Relatively to be moved when main shaft is pivoted along second cam path.
First cam path and the second cam path are configured so as to rotate in the first direction and a second direction when main shaft
When, third pin and the 4th pin can relatively move in the first cam path and the second cam path respectively, to make in first respectively
Property wiretap moving contact rack and the second neutral switch moving contact rack carry out corresponding actions, realize the first neutral switch and
The on and off of second neutral switch.
According to an embodiment of the invention, first cam path includes first part and second part, the arc of first part
Radius is equal to distance of the third pin away from rotation center, and the arc radius of first part is different from the arc radius of second part, so that
Main shaft rotates in a second direction, the first neutral switch from conduction position to rest position switch when, third pin can push or
The first neutral switch moving contact rack is pulled, and then pushes or pull on the first neutral switch moving contact, makes itself and the first electricity
The static contact in source and the static contact contact of load-side neutral conductor pole are detached from.
Second cam path includes Part III and Part IV, and the arc radius of Part III is equal to the 4th pin away from rotation
The distance at center, the arc radius of Part III are different from the arc radius of Part IV, obtain and be rotated in a first direction in main shaft, and second
When neutral switch switches from conduction position to rest position, the 4th pin can push or pull on the second neutral switch moving contact
Bracket, and then the second neutral switch moving contact is pushed or pull on, make its static contact and the load-side neutral conductor with second source
The static contact of pole is contacted or is detached from.
According to an embodiment of the invention, first phase wiretap and the second phase wiretap are in when main shaft is in an intermediate position
When rest position, the first neutral switch and the second neutral switch are in conduction position, when main shaft is rotated in a first direction
When, the first phase wiretap immediately begin to conduction position switch, meanwhile, the first neutral switch moving contact drive cam and
Second neutral switch moving contact driving cam is rotated in a first direction, so that third pin is moved along the first part of the first cam path
Dynamic, the 4th pin is moved to Part IV from the Part III of the second cam path, since the arc radius of first part is equal to third pin
Distance away from rotation center, the arc radius of Part IV are sold with the 4th away from difference at a distance from rotation center, so first connecting rod is not
It will push or pull the first neutral switch moving contact rack, second connecting rod will not push away during the 4th pin is moved along Part III
It moves or pulls the second neutral switch moving contact rack and will push or pull second during the 4th pin is moved along Part IV
Neutral switch moving contact rack so that the second neutral switch moving contact rack be made to be rotated in a first direction, and then makes second
Neutral switch moving contact is rotated in a first direction, to be detached from quiet with the static contact of second source and load-side neutral conductor pole
The contact of contact, so that the first neutral switch is held on, the cut-off of the second neutral switch.
According to an embodiment of the invention, when the arc radius of Part IV is greater than the arc radius of Part III, second connecting rod
When one end is hinged on the third end of the second neutral switch moving contact rack, the second connecting rod pushes the second neutral switch dynamic
Contact supporting is rotated in a first direction.
According to an embodiment of the invention, when the arc radius of Part IV is less than the arc radius of Part III, second connecting rod
When one end is hinged on four end of the second neutral switch moving contact rack, the second connecting rod pulls the second neutral switch dynamic
Contact supporting is rotated in a first direction.
According to an embodiment of the invention, first phase switch is immediately begun to cut-off when main shaft rotates in a second direction
Position switching, meanwhile, the first neutral switch moving contact drives cam and the second neutral switch moving contact driving cam along the
Two directions rotate, so that third pin is moved along the first part of the first cam path, the 4th pin is detached from the 4th of the second cam path
Divide and enter Part III, since the arc radius of first part is equal to distance of the third pin away from rotation center, the arc of Part IV
Radius is with the 4th pin away from difference at a distance from rotation center, so first connecting rod will not push or pull on, the first neutral switch is dynamic to be touched
Head bracket, second connecting rod push or pull on the second neutral switch moving contact rack, to make the second neutral switch moving contact
Bracket rotates in a second direction, and then rotates in a second direction the second neutral switch moving contact, thus with second source
The contact of static contact and the static contact of load-side neutral conductor pole, so that the first neutral switch is held on, second neutral conductor is opened
Pass is become being connected from cut-off.
According to an embodiment of the invention, when the arc radius of Part IV is greater than the arc radius of Part III, second connecting rod
When one end is hinged on the third end of the second neutral switch moving contact rack, the second connecting rod pulls the second neutral switch dynamic
Contact supporting rotates in a second direction.
According to an embodiment of the invention, when the arc radius of Part IV is less than the arc radius of Part III, second connecting rod
When one end is hinged on four end of the second neutral switch moving contact rack, the second connecting rod pushes the second neutral switch dynamic
Contact supporting rotates in a second direction.
According to an embodiment of the invention, first phase wiretap and the second phase wiretap are in when main shaft is in an intermediate position
When rest position, the first neutral switch and the second neutral switch are in conduction position, when main shaft rotates in a second direction
When, the second phase wiretap immediately begin to conduction position switch, meanwhile, the first neutral switch moving contact drive cam and
Second neutral switch moving contact driving cam rotates in a second direction, so that third pin is moved from the first part of the first cam path
Second part is moved, the 4th pin is moved along the Part III of the second cam path, since the arc radius of second part is not equal to third
The distance away from rotation center is sold, the arc radius of Part III is equal to the 4th distance of the pin away from rotation center, so first connecting rod exists
Third pin will not push or pull on the first neutral switch moving contact rack during moving along first part and in third pin along the
It will push or pull the first neutral switch moving contact rack during two partial movements, second connecting rod will not push or pull on second
Neutral switch moving contact rack so that the first neutral switch moving contact rack be made to rotate in a second direction, and then makes first
Neutral switch moving contact rotates in a second direction, to be detached from quiet with the static contact of the first power supply and load-side neutral conductor pole
The contact of contact, so that the first neutral switch ends, the second neutral switch is held on.
According to an embodiment of the invention, when the arc radius of second part is greater than the arc radius of first part, first connecting rod
When one end is hinged on the first end of the first neutral switch moving contact rack, the first connecting rod pushes the first neutral switch dynamic
Contact supporting rotates in a second direction.
According to an embodiment of the invention, when the arc radius of second part is less than the arc radius of first part, first connecting rod
When one end is hinged on the second end of the first neutral switch moving contact rack, the first connecting rod pulls the first neutral switch dynamic
Contact supporting rotates in a second direction.
According to an embodiment of the invention, the second phase wiretap is immediately begun to cut-off when main shaft is rotated in a first direction
Position switching, meanwhile, the first neutral switch moving contact drives cam and the second neutral switch moving contact driving cam along the
One direction rotates, so that third pin is detached from the second part of the first cam path and enters first part, the 4th pin is along the second cam
The Part III of slot is mobile, since the arc radius of second part is not equal to distance of the third pin away from rotation center, Part III
Arc radius is equal to the 4th distance of the pin away from rotation center, so first connecting rod will push or pull the first neutral switch moving contact
Bracket, second connecting rod will not push or pull on the second neutral switch moving contact rack, to make the dynamic touching of the first neutral switch
Head bracket is rotated in a first direction, and then is rotated in a first direction the first neutral switch moving contact, thus the first electricity of contact
The contact of the static contact in source and the static contact of load-side neutral conductor pole, so that the first neutral switch becomes being connected from ending, the
Two neutral switches are held on.
According to an embodiment of the invention, when the arc radius of second part is greater than the arc radius of first part, first connecting rod
When one end is hinged on the first end of the first neutral switch moving contact rack, the first connecting rod pulls the first neutral switch dynamic
Contact supporting is rotated in a first direction.
According to an embodiment of the invention, when the arc radius of second part is less than the arc radius of first part, first connecting rod
When one end is hinged on the second end of the first neutral switch moving contact rack, the first connecting rod pushes the first neutral switch dynamic
Contact supporting is rotated in a first direction.
According to an embodiment of the invention, first neutral switch and the second neutral switch are set relatively relative to main shaft
It sets, the first elastic element is connected between the first neutral switch and shell, and the second elastic element is connected to second neutral conductor and opens
It closes between shell, so that the first neutral switch and the second neutral switch are neutral by the first neutral switch and second respectively
Wiretap is pivotally mounted to main shaft towards conduction position bias, third bar, can rotate with the rotation of main shaft.
First neutral switch includes: the first neutral switch moving contact, is pivotably mounted on first neutral conductor
On switch movable contact head bracket, the first neutral switch moving contact rack is pivotably mounted on shell, the first neutral switch
Moving contact can be pivoted and be connect with the static contact of static contact and load-side neutral conductor pole with the first power supply according to the pivot of main shaft
Touching is detached from, thus the first power supply of on or off；4th bar, one end are fixedly connected on one end of third bar, other end tool
There is the 4th groove, the 5th pin of the first neutral switch moving contact rack is contained in the 4th groove.
Second neutral switch includes: the second neutral switch moving contact, is pivotably mounted on second neutral conductor
On switch movable contact head bracket, the second neutral switch moving contact rack is pivotably mounted on shell, the second neutral switch
Moving contact can be pivoted and be connect with the static contact of static contact and load-side neutral conductor pole with second source according to the pivot of main shaft
Touching is detached from, thus on or off second source；5th bar, one end are fixedly connected on the other end of third bar, the other end
With the 5th groove, the 6th pin of the second neutral switch moving contact rack is contained in the 5th groove.
According to an embodiment of the invention, first phase wiretap and the second phase wiretap are in when main shaft is in an intermediate position
When rest position, the first neutral switch and the second neutral switch are in conduction position, when main shaft rotates in a second direction
When, third bar also rotates in a second direction, so that the 4th bar be made to be moved into one end of the 5th pin and the 4th groove against the 5th bar
The 6th pin is moved into not with the either end of the 5th groove against with further rotating for third bar, third bar is pushed in first
Property wiretap moving contact rack and the first neutral switch moving contact thus are rotated in a first direction, to make first neutral conductor
Switch movable contact be detached from the contact of the static contact of the first power supply and the static contact of load-side neutral conductor pole so that second neutral conductor
Switch is held on, and the first neutral switch becomes ending from being connected.
According to an embodiment of the invention, first phase wiretap and the second phase wiretap are in when main shaft is in an intermediate position
When rest position, the first neutral switch and the second neutral switch are in conduction position, when main shaft is rotated in a first direction
When, third bar is also rotated in a first direction, so that the 5th bar be made to be moved into one end of the 6th pin and the 5th groove against the 4th bar
The 5th pin is moved into not with the either end of the 4th groove against with further rotating for the 5th bar, the 5th bar is pushed in second
Property wiretap moving contact rack and the second neutral switch moving contact thus rotate in a second direction, to make second neutral conductor
Switch movable contact be detached from the contact of the static contact of second source and the static contact of load-side neutral conductor pole so that first neutral conductor
Switch is held on, and the second neutral switch becomes ending from being connected
Detailed description of the invention
It, below will be to needed in the embodiment in order to illustrate more clearly of the technical solution in the embodiment of the present disclosure
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present disclosure, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
The schematic diagram that Fig. 1 shows the first phase wiretap of embodiment according to the present invention and the second phase wiretap is turned off.
Fig. 2 shows the signals that the first neutral switch of embodiment according to the present invention and the second neutral switch are both turned on
Figure.
When Fig. 3 shows main shaft and starts to be rotated in a first direction, the state of the first phase wiretap and the second phase wiretap is shown
It is intended to.
Fig. 4 shows the moment shown in Fig. 3, and the state of the first neutral switch and the second neutral switch shows electrograph.
Fig. 5 shows main shaft and is further rotated in a first direction, and the first phase wiretap is held on, the cut-off of the second phase wiretap
Schematic diagram.
Fig. 6 shows the moment shown in Fig. 5, and the first neutral switch is held on, the signal of the second neutral switch cut-off
Figure.
When Fig. 7 shows main shaft and starts to rotate in a second direction, the state of the first phase wiretap and the second phase wiretap is shown
It is intended to.
Fig. 8 shows the moment shown in Fig. 7, and the state of the first neutral switch and the second neutral switch shows electrograph.
Fig. 9 shows main shaft and further rotates in a second direction, and the first phase wiretap cut-off, the second phase wiretap is held on
Schematic diagram.
Figure 10 shows moment shown in Fig. 9, the cut-off of the first neutral switch, the signal that the second neutral switch is held on
Figure.
Figure 11 shows the first neutral switch according to another embodiment of the present invention and the second neutral switch is both turned on
Schematic diagram.
Figure 12 shows main shaft and is rotated in a first direction, and the first neutral switch is held on, the cut-off of the second neutral switch
Schematic diagram.
Figure 13 shows main shaft and rotates in a second direction, and the first neutral switch cut-off, the second neutral switch is held on
Schematic diagram.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present disclosure, the technical solution in the embodiment of the present disclosure is carried out clear, complete
Site preparation description, it is clear that described embodiment is only disclosure a part of the embodiment, instead of all the embodiments.It is based on
Embodiment in the disclosure, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment belongs to the range of disclosure protection.
Unless otherwise defined, the technical term or scientific term used herein should be in disclosure fields and has
The ordinary meaning that the personage of general technology is understood.Used in disclosure patent application specification and claims " the
One ", " second " and similar word are not offered as any sequence, quantity or importance, and are used only to distinguish different
Component part.Same "one" or " one " etc. do not indicate that quantity limits similar to word yet, but indicate that there are at least one.
" connection " either the similar word such as " connected " is not limited to physics or mechanical connection, but may include electrical
Connection, it is either direct or indirect."upper", "lower", "left", "right" etc. are only used for indicating relative positional relationship, work as quilt
After the absolute position of description object changes, then relative positional relationship also correspondingly changes.
Fig. 1 and 2 is shown when main shaft does not rotate, and the first phase wiretap and the cut-off of the second phase wiretap, first neutral conductor are opened
Close the schematic diagram with the conducting of the second neutral switch.
Referring first to Fig. 1, first phase wiretap one end is electrically connected with one end of load-side phase line pole, load-side phase line pole
The other end is electrically connected with load phase, so that the first phase wiretap is electrically connected or electrically disconnected with load phase.Second phase wiretap
One end is electrically connected with one end of load-side phase line pole, and the other end of load-side phase line pole is electrically connected with load phase, thus second
Phase wiretap is electrically connected or electrically disconnected with load phase.In addition, referring to fig. 2, in one end and load-side of the first neutral switch
Property line pole one end electrical connection, the other end of load-side neutral conductor pole is electrically connected with load neutral line, so that first neutral conductor is opened
Pass is electrically connected or electrically disconnected with load neutral line.One end of second neutral switch and one end of load-side neutral conductor pole are electrically connected
It connects, the other end of load-side neutral conductor pole is electrically connected with load neutral line, thus the second neutral switch and load neutral line electricity
Connection is electrically disconnected.
Referring back to Fig. 1, main shaft 1 is pivotably mounted on the shell of dual-power transfer switch.First phase wiretap packet
The first phase line switch movable contact 21 is included, is pivotably mounted on the first phase line switch movable contact head bracket 22.First phase line is opened
Moving contact rack is closed to be pivotably mounted on the shell of dual-power transfer switch.One end of first bar 23 is fixedly mounted on main shaft
On 1, the first bar 23 is moved with the rotation of main shaft.The other end of first bar 23 have first groove 231, first
First pin 221 of phase line switch movable contact head bracket 22 is contained in first groove 231, so that when the first bar 23 is with the rotation of main shaft
Then when mobile, first groove 231 is mobile relative to the first pin 221, final first pin 221 against one end of first groove 231,
At this point, the first bar 23 just pushes or pull on the first phase line switch movable contact head bracket 22 and the first phase line switch movable contact 21 thus
Rotation, thus make the first phase line switch movable contact 21 contacted with the static contact of the static contact of the first power supply and load-side phase line pole or
It is detached from, thus the first power supply of on or off.
Second phase wiretap includes the second phase line switch movable contact 31, is pivotably mounted on the second phase line switch movable contact
On head bracket 32.Second phase line switch movable contact head bracket is pivotably mounted on the shell of dual-power transfer switch.Second bar
33 one end is fixedly mounted on main shaft 1, and the second bar 33 is moved with the rotation of main shaft.Second bar 33 it is another
End has second groove 331, and the second pin 321 of the second phase line switch movable contact head bracket 32 is contained in second groove 231, so that
When the second bar 33 is moved with the rotation of main shaft, second groove 331 is mobile relative to the second pin 321, final second pin 321
Against one end of second groove 331, at this point, the second bar 33 just pushes or pull on the second phase line switch movable contact head bracket 32 and thus
The rotation of the second phase line switch movable contact 31, to make static contact and the load of the second phase line switch movable contact 31 and second source
The static contact of side phase line pole is contacted or is detached from, thus on or off second source.
It should be noted that this specification only illustrates for the phase cable architecture shown in the attached drawing, it will be understood by those skilled in the art that this
The neutral cable architecture of invention can be used together with any suitable phase cable architecture.
Referring to Fig. 2, the first neutral switch includes the first neutral switch moving contact 41, is pivotably mounted on
On first neutral switch moving contact rack 42, the first neutral switch moving contact rack 42 is pivotably mounted on shell.
First neutral switch further includes the first neutral switch moving contact driving cam 43, is fixedly mounted on main shaft, Neng Gousui
Main shaft rotate together.In this example, one end of first connecting rod 44 is hinged on the first neutral switch moving contact rack 42
In second end, the other end is fixed around the pivoting centre of main shaft.The third pin 441 of first connecting rod 44 is contained in first neutral conductor and opens
Close moving contact driving cam 43 the first cam path 431 in, with when main shaft is pivoted relative to the first cam path in the first cam
It is moved in slot.
First cam path 431 includes first part 4311 and second part 4312, in this example, the arc half of first part
Diameter is equal to distance of the third pin 441 away from rotation center, and the arc radius of first part is greater than the arc radius of second part, so that the
When one neutral switch switches from conduction position to rest position, third pin can pull the first neutral switch moving contact branch
Frame, and then the first neutral switch moving contact is pulled, make itself and the static contact of the first power supply and the stationary contact of load-side neutral conductor pole
Head is detached from, as detailed below.
It will be understood by those skilled in the art that one end of first connecting rod 44 can also be hinged on the first neutral switch moving contact
In the first end of bracket 42, in this case, the arc radius of first part is less than the arc radius of second part, so that in first
Property wiretap from conduction position to rest position switch when, third pin can push the first neutral switch moving contact rack, into
And the first neutral switch moving contact is pushed, keep it de- with the static contact of the first power supply and the static contact of load-side neutral conductor pole
From.
Second neutral switch includes the second neutral switch moving contact 51, is pivotably mounted on second neutral conductor and opens
It closes on moving contact rack 52, the second neutral switch moving contact rack 52 is pivotably mounted on shell.Second neutral conductor is opened
Pass further includes the second neutral switch moving contact driving cam 53, is fixedly mounted on main shaft, can revolve together with main shaft
Turn.In this example, one end of second connecting rod 54 is hinged on the third end of the second neutral switch moving contact rack 52, another
End is fixed around the pivoting centre of main shaft.4th pin 541 of second connecting rod 54 is contained in the driving of the second neutral switch moving contact
In second cam path 531 of cam 53, to be moved in the second cam path when main shaft is pivoted relative to the second cam path.
Second cam path 531 includes Part III 5311 and Part IV 5312, in this example, the arc half of Part III
Diameter is equal to the 4th distance of the pin 541 away from rotation center, and the arc radius of Part III is less than the arc radius of Part IV, so that the
When two neutral switches switch from conduction position to rest position, the 4th pin can push the second neutral switch moving contact branch
Frame, and then the second neutral switch moving contact is pushed, make itself and the static contact of second source and the stationary contact of load-side neutral conductor pole
Head contact is detached from, as detailed below.
It will be understood by those skilled in the art that one end of second connecting rod 54 can also be hinged on the second neutral switch moving contact
On 4th end of bracket 52, in this case, the arc radius of Part III is greater than the arc radius of Part IV, so that in second
Property wiretap from conduction position to rest position switch when, the 4th pin can pull the second neutral switch moving contact rack, into
And the second neutral switch moving contact is pulled, keep it de- with the static contact of second source and the static contact of load-side neutral conductor pole
From.
In the following, being rotated in the counterclockwise direction referring to Fig. 3-6 main shaft is described in detail, the conducting of the first power switch, the second electricity
The process of source switch cut-off.
When main shaft starts to be rotated in the counterclockwise direction, the first bar 23 can be moved up because of the rotation of main shaft, so that the
One pin 221 can also be moved up against the end of the first groove 231 of the first bar 23, the second bar because of the rotation of main shaft, still
Second pin 321 will not with the end of the second groove 331 of the second bar 33 against.When the first pin 221 is against the end of first groove 231
After end, with further rotating for main shaft, the first bar 23 can be moved further, to push the first phase line switch movable contact branch
Frame 22 and the first phase line switch movable contact 21 thus are rotated in the counterclockwise direction, and make the first phase line switch movable contact 21 and first
The static contact of power supply and the static contact contact of load-side phase line pole, realize the conducting of the first phase wiretap.
In this process, as main shaft is rotated in the counterclockwise direction, the first neutral switch moving contact drives 43 He of cam
Second neutral switch moving contact drives cam 53 also along counterclockwise to rotation.During this period, third pin 441 is in the first cam path
It is relatively moved in 431 first part, the 4th pin 541 is moved to Part IV from the Part III of the second cam path 531.Such as
Upper described, since the arc radius of first part is equal to distance of the third pin 441 away from rotation center, the arc radius of Part IV is greater than
The arc radius of Part III, so first connecting rod 44 not will pull the first neutral switch moving contact rack, 54 meeting of second connecting rod
The second neutral switch moving contact rack is pushed, so that it is rotated in the counterclockwise direction the second neutral switch moving contact rack,
And then it is rotated in the counterclockwise direction the second neutral switch moving contact, to be detached from the static contact and load-side with second source
The contact of the static contact of neutral conductor pole, so that the first neutral switch is held on, the cut-off of the second neutral switch.
Similarly, it will be understood by the skilled person that in these cases, when being rotated in a clockwise direction main shaft,
Another end of the first groove 231 of one pin 221 and the first bar 23 is against so that the first phase line switch movable contact head bracket and first
Phase line switch movable contact is rotated in a clockwise direction, and the second pin 321 relatively moves in the second groove 331 of the second bar 33, no
Can be against another end of second groove, so that first phase switch be made to become ending from conducting, the second phase wiretap keeps cutting
Only.During this period, the first neutral switch moving contact drives cam 43 and the second neutral switch moving contact to drive 53 edge of cam
It is rotated clockwise, so that third pin 441 relatively moves in the first part of the first cam path 431, the 4th pin 541 is de-
Part IV from the second cam path 531 and enter Part III, since the arc radius of first part is equal to third pin away from rotation
The distance at center, the arc radius of Part IV are greater than the 4th distance of the pin away from rotation center, so first connecting rod not will pull the
One neutral switch moving contact rack, second connecting rod pushes the second neutral switch moving contact rack, to make second neutral conductor
Switch movable contact head bracket is rotated in a clockwise direction, and then is rotated in a clockwise direction the second neutral switch moving contact, from
And with the contact of the static contact of second source and the static contact of load-side neutral conductor pole so that the first neutral switch holding lead
Logical, the second neutral switch becomes being connected from ending.
Then, it is rotated in a clockwise direction referring to Fig. 7-10 main shaft is described in detail, second source switch conduction, the first electricity
The process of source switch cut-off.
When main shaft starts to be rotated in a clockwise direction, the second bar can be moved down because of the rotation of main shaft, so that second
Pin 321 can also be moved down against the end of the second groove 331 of the second bar 33, the first bar 23 because of the rotation of main shaft, still
First pin 221 will not be against the end of the first groove 231 of the first bar 23.When the second pin 321 is against the end of second groove 331
Later, further rotating with main shaft, the second bar 33 can be moved further, to push the second phase line switch movable contact head bracket
32 and the second phase line switch movable contact 31 thus be rotated in a clockwise direction, make the second phase line switch movable contact 31 and the first electricity
The static contact in source and the static contact contact of load-side phase line pole, realize the conducting of the first phase wiretap.
In this process, as main shaft is rotated in a clockwise direction, the first neutral switch moving contact drives 43 He of cam
Second neutral switch moving contact drives cam 53 also along clockwise to rotation.During this period, third pin 441 is from the first cam path
431 first part is moved to second part, and the 4th pin 541 relatively moves in the Part III of the second cam path 531.Such as
Upper described, since the arc radius of second part is less than distance of the third pin 441 away from rotation center, the arc radius of Part III is equal to
4th distance of the pin 541 away from rotation center, so first connecting rod 44 will pull the first neutral switch moving contact rack, second connects
Bar 54 not will push the second neutral switch moving contact rack, to make the first neutral switch moving contact rack along side clockwise
To rotation, and then it is rotated in a clockwise direction the first neutral switch moving contact, to be detached from the static contact with the first power supply
With the contact of the static contact of load-side neutral conductor pole, so that the second neutral switch is held on, the first neutral switch ends.
Similarly, skilled artisan will appreciate that in this case when main shaft is rotated in the counterclockwise direction, each component
Movement relation, details are not described herein.
Each technical characteristic of above-mentioned disclosure is not limited to disclosed and other feature combination, and those skilled in the art are also
Other combinations between each technical characteristic can be carried out according to goal of the invention, be subject to realize the present invention purpose.
Then, referring to Figure 11-13, it illustrates the first neutral switches and second according to another embodiment of the present invention
Neutral switch, the first phase wiretap and the second phase wiretap are identical as previous embodiment, and details are not described herein.
As shown in figure 11, the first elastic element 61 is connected between the first neutral switch and shell, the second elastic element
62 are connected between the second neutral switch and shell, so that the position shown in Figure 11, the first elastic element and the second elasticity member
Part is respectively by the first neutral switch and the second neutral switch towards conduction position bias.Third bar 7 is pivotally mounted to
Main shaft 1 can be rotated with the rotation of main shaft,
First neutral switch includes the first neutral switch moving contact 41, is pivotably mounted on first neutral conductor and opens
It closes on moving contact rack 42, the first neutral switch moving contact rack 42 is pivotably mounted on shell.The one of 4th bar 81
End is fixedly connected on one end of third bar 7, and the other end has the 4th groove 82, the first neutral switch moving contact rack 42
5th pin 421 is contained in the 4th groove 82.
Second neutral switch includes the second neutral switch moving contact 51, is pivotably mounted on second neutral conductor and opens
It closes on moving contact rack 52, the second neutral switch moving contact rack 52 is pivotably mounted on shell.The one of 5th bar 91
End is fixedly connected on the other end of third bar 7, and the other end has the 5th groove 92, the second neutral switch moving contact rack 52
The 6th pin 521 be contained in the 5th groove 92.
When main shaft is in an intermediate position, and the first phase wiretap and the second phase wiretap are in rest position, first is neutral
Wiretap and the second neutral switch are in conduction position.When main shaft is rotated along clockwise direction, third bar 7 is also along side clockwise
To rotation, so that the 4th bar 81 be made to be moved into one end of the 5th pin 421 and the 4th groove 82 against the 5th bar 91 is moved into the 6th
Pin 521 not with the either end of the 5th groove 92 against.With further rotating for third bar 7, third bar 7 pushes first neutral conductor
Switch movable contact head bracket 41 and the first neutral switch moving contact 42 thus are rotated in the counterclockwise direction, to make the first neutrality
Wiretap moving contact be detached from the contact of the static contact of the first power supply and the static contact of load-side neutral conductor pole so that second neutrality
Wiretap is held on, and the first neutral switch becomes ending from being connected, which can be found in Figure 11-12.
In this case, when main shaft is rotated in the counterclockwise direction, those skilled in the art are contemplated that the fortune of each component
Dynamic relationship, details are not described herein.
Referring to Figure 11 and 13, when main shaft is rotated in the counterclockwise direction, third bar 7 is also rotated in the counterclockwise direction, thus
So that the 5th bar 91 is moved into one end of the 6th pin 521 and the 5th groove 92 and is moved into the 5th pin 421 not with against, the 4th bar 81
The either end of four grooves 82 against.With further rotating for the 5th bar 91, the 5th bar pushes the second neutral switch moving contact
Bracket and the second neutral switch moving contact thus are rotated in a clockwise direction, to keep the second neutral switch moving contact de-
From with the contact of the static contact of second source and the static contact of load-side neutral conductor pole so that the first neutral switch holding lead
Logical, the second neutral switch becomes ending from being connected.
In this case, when main shaft is rotated in a clockwise direction, those skilled in the art are contemplated that the fortune of each component
Dynamic relationship, details are not described herein.
Above embodiments are merely to illustrate the disclosure, and are not the limitation to the disclosure, the common skill in relation to technical field
Art personnel can also make a variety of changes and modification without departing from the spirit and scope of the disclosure, therefore all etc.
Same technical solution also belongs to the scope of the disclosure, and the scope of patent protection of the disclosure should be defined by the claims.
Claims (18)
1. a kind of dual-power transfer switch, comprising:
Load-side phase line pole, one end are electrically connected with load phase；
First phase wiretap, one end is electrically connected with the other end of the load-side phase line pole, and is selectively turned on or ended
First phase line pole is electrically connected with the first power supply；
Second phase wiretap, one end is electrically connected with the other end of the load-side phase line pole, and is selectively turned on or ended
Second phase line pole is electrically connected with second source；
Load-side neutral conductor pole, one end are electrically connected with load neutral line；
First neutral switch, one end are electrically connected with the other end of the load-side neutral conductor pole, and selectively turn on or
End being electrically connected for the first neutral pole and the first power supply；
Second neutral switch, one end are electrically connected with the other end of the load-side neutral conductor pole, and selectively turn on or
End being electrically connected for the second neutral pole and second source,
Main shaft is pivotably mounted on the shell of the dual-power transfer switch, and the rotation of main shaft is enabled to make the first phase
Wiretap, the second phase wiretap, the first neutral switch and the second neutral switch carry out corresponding actions and carry out on or off,
Wherein, when the first phase wiretap and the second phase wiretap are turned off, first neutral switch and institute
The second neutral switch is stated to be both turned on,
Wherein, when the first power supply starts power supply, the first phase wiretap immediately begins to switch to conduction position, and in second
Property wiretap be later than the first phase wiretap above-mentioned switching moment start to rest position switch, finally led in the first phase wiretap
Logical moment, the cut-off of the second neutral switch,
Wherein, when second source starts power supply, the second phase wiretap immediately begins to switch to conduction position, and in first
Property wiretap be later than the second phase wiretap above-mentioned switching moment start to rest position switch, finally led in the second phase wiretap
Logical moment, the cut-off of the first neutral switch.
2. dual-power transfer switch as described in claim 1, which is characterized in that first neutral switch and the second neutrality
Wiretap is oppositely arranged relative to main shaft, and an elastic element is connected between the first neutral switch and the second neutral switch,
By the first neutral switch and the second neutral switch towards conduction position bias,
First neutral switch includes:
First neutral switch moving contact is pivotably mounted on the first neutral switch moving contact rack, first neutral conductor
Switch movable contact head bracket is pivotably mounted on shell, the first neutral switch moving contact can according to the pivot of main shaft pivot
Turn to contact or be detached from the static contact of the static contact of the first power supply and load-side neutral conductor pole, thus the first electricity of on or off
Source；
First neutral switch moving contact drives cam, is fixedly mounted on main shaft, can rotate together with main shaft；
First connecting rod, one end are hinged on the first neutral switch moving contact rack, and the other end surrounds the pivoting centre of main shaft, and
And third pin is placed in the first cam path of the first neutral switch moving contact driving cam, with when main shaft is pivoted along described the
One cam path relatively moves,
Second neutral switch includes:
Second neutral switch moving contact is pivotably mounted on the second neutral switch moving contact rack, second neutral conductor
Switch movable contact head bracket is pivotably mounted on shell, the second neutral switch moving contact can according to the pivot of main shaft pivot
Turn to contact or be detached from the static contact of the static contact of second source and load-side neutral conductor pole, thus the second electricity of on or off
Source；
Second neutral switch moving contact drives cam, is fixedly mounted on main shaft, can rotate together with main shaft,
Second connecting rod, one end are hinged on the second neutral switch moving contact rack, and the other end surrounds the pivoting centre of main shaft, and
And the 4th pin be placed in the second cam path of the second neutral switch moving contact driving cam, with when main shaft is pivoted along described the
Two cam paths relatively move,
Wherein, first cam path and the second cam path are configured so that when main shaft is in a first direction and opposite with first direction
Second direction on when rotating, third pin and the 4th pin can relatively move in the first cam path and the second cam path respectively,
To make the first neutral switch moving contact rack and the second neutral switch moving contact rack carry out corresponding actions respectively, realize
The on and off of first neutral switch and the second neutral switch.
3. dual-power transfer switch as claimed in claim 2, which is characterized in that
Wherein, first cam path includes first part and second part, and the arc radius of first part is equal to third pin away from rotation
Turning the distance at center, the arc radius of first part is different from the arc radius of second part, so that rotated in a second direction in main shaft,
When first neutral switch switches from conduction position to rest position, it is dynamic that third pin can push or pull on the first neutral switch
Contact supporting, and then the first neutral switch moving contact is pushed or pull on, make in its static contact and load-side with the first power supply
Property line pole static contact contact or be detached from,
Wherein, second cam path includes Part III and Part IV, and the arc radius of Part III is equal to the 4th pin away from rotation
Turning the distance at center, the arc radius of Part III is different from the arc radius of Part IV, obtains and be rotated in a first direction in main shaft, the
When two neutral switches switch from conduction position to rest position, the 4th pin can push or pull on the dynamic touching of the second neutral switch
Head bracket, and then the second neutral switch moving contact is pushed or pull on, keep it neutral with the static contact and load-side of second source
The static contact of line pole is contacted or is detached from.
4. dual-power transfer switch as claimed in claim 3, which is characterized in that when main shaft is in an intermediate position, the first phase line
When switch and the second phase wiretap are in rest position, the first neutral switch and the second neutral switch are in conducting position
It sets, when main shaft is rotated in a first direction, the first phase wiretap immediately begins to switch to conduction position, meanwhile, in first
Property wiretap moving contact driving cam and the second neutral switch moving contact driving cam be rotated in a first direction so that third pin
First part along the first cam path moves, and the 4th pin from the Part III of the second cam path is moved to Part IV, due to the
The arc radius of a part is equal to distance of the third pin away from rotation center, and the arc radius of Part IV is with the 4th pin away from rotation center
Distance is different, so first connecting rod will not push or pull on the first neutral switch moving contact rack, second connecting rod is in the 4th pin
The second neutral switch moving contact rack will not be pushed or pull on during moving along Part III and is sold the 4th along Part IV
It will push or pull the second neutral switch moving contact rack during movement, to make the second neutral switch moving contact rack edge
First direction rotation, and then it is rotated in a first direction the second neutral switch moving contact, to be detached from quiet with second source
The contact of contact and the static contact of load-side neutral conductor pole, so that the first neutral switch is held on, the second neutral switch
Cut-off.
5. dual-power transfer switch as claimed in claim 4, which is characterized in that when the arc radius of Part IV is greater than third portion
The arc radius divided, when one end of second connecting rod is hinged on the third end of the second neutral switch moving contact rack, described second connects
Bar pushes the second neutral switch moving contact rack to be rotated in a first direction.
6. dual-power transfer switch as claimed in claim 4, which is characterized in that when the arc radius of Part IV is less than third portion
The arc radius divided, when one end of second connecting rod is hinged on four end of the second neutral switch moving contact rack, described second connects
Bar pulls the second neutral switch moving contact rack to be rotated in a first direction.
7. dual-power transfer switch as claimed in claim 4, which is characterized in that described when main shaft rotates in a second direction
First phase wiretap immediately begins to switch to rest position, meanwhile, the first neutral switch moving contact drives in cam and second
Property wiretap moving contact driving cam rotate in a second direction so that third pin is moved along the first part of the first cam path, the
Four pins are detached from the Part IV of the second cam path and enter Part III, since the arc radius of first part is equal to third pin away from rotation
Turn the distance at center, the arc radius of Part IV is sold with the 4th away from difference at a distance from rotation center, so first connecting rod will not push away
Dynamic or the first neutral switch moving contact rack of pulling, second connecting rod push or pull on the second neutral switch moving contact rack,
To make the second neutral switch moving contact rack rotate in a second direction, and then make the second neutral switch moving contact along second
Direction rotates, thus with the contact of the static contact of second source and the static contact of load-side neutral conductor pole, so that first neutral conductor
Switch is held on, and the second neutral switch becomes being connected from ending.
8. dual-power transfer switch as claimed in claim 7, which is characterized in that when the arc radius of Part IV is greater than third portion
The arc radius divided, when one end of second connecting rod is hinged on the third end of the second neutral switch moving contact rack, described second connects
Bar pulls the second neutral switch moving contact rack to rotate in a second direction.
9. dual-power transfer switch as claimed in claim 7, which is characterized in that when the arc radius of Part IV is less than third portion
The arc radius divided, when one end of second connecting rod is hinged on four end of the second neutral switch moving contact rack, described second connects
Bar pushes the second neutral switch moving contact rack to rotate in a second direction.
10. dual-power transfer switch as claimed in claim 3, which is characterized in that when main shaft is in an intermediate position, the first phase line
When switch and the second phase wiretap are in rest position, the first neutral switch and the second neutral switch are in conducting position
It sets, when main shaft rotates in a second direction, the second phase wiretap immediately begins to switch to conduction position, meanwhile, in first
Property wiretap moving contact driving cam and the second neutral switch moving contact driving cam rotate in a second direction so that third pin
Second part is moved to from the first part of the first cam path, and the 4th pin is moved along the Part III of the second cam path, due to the
The arc radius of two parts is not equal to distance of the third pin away from rotation center, and the arc radius of Part III is equal to the 4th pin away from rotation
The distance of the heart, so first connecting rod will not push or pull on the first neutral switch during third pin is moved along first part and move
Contact supporting and third pin along second part move during will push or pull the first neutral switch moving contact rack, second
Connecting rod will not push or pull on the second neutral switch moving contact rack, to make the first neutral switch moving contact rack along
Two directions rotate, and then rotate in a second direction the first neutral switch moving contact, to be detached from the stationary contact with the first power supply
Head and the contact of the static contact of load-side neutral conductor pole so that the first neutral switch end, the second neutral switch keep lead
It is logical.
11. dual-power transfer switch as claimed in claim 10, which is characterized in that when the arc radius of second part is greater than first
Partial arc radius, when one end of first connecting rod is hinged on the first end of the first neutral switch moving contact rack, described first
Connecting rod pushes the first neutral switch moving contact rack to rotate in a second direction.
12. dual-power transfer switch as claimed in claim 10, which is characterized in that when the arc radius of second part is less than first
Partial arc radius, when one end of first connecting rod is hinged on the second end of the first neutral switch moving contact rack, described first
Connecting rod pulls the first neutral switch moving contact rack to rotate in a second direction.
13. dual-power transfer switch as claimed in claim 10, which is characterized in that when main shaft is rotated in a first direction, institute
The second phase wiretap is stated to immediately begin to switch to rest position, meanwhile, the first neutral switch moving contact drives cam and second
Neutral switch moving contact driving cam be rotated in a first direction so that third pin be detached from the first cam path second part and into
Enter first part, the 4th pin is moved along the Part III of the second cam path, since the arc radius of second part is not equal to third pin
Distance away from rotation center, the arc radius of Part III is equal to the 4th distance of the pin away from rotation center, so first connecting rod can push away
Dynamic or the first neutral switch moving contact rack of pulling, second connecting rod will not push or pull on the second neutral switch moving contact branch
Frame so that the first neutral switch moving contact rack be made to be rotated in a first direction, and then makes the first neutral switch moving contact edge
First direction rotation, thus static contact and the contact of the static contact of load-side neutral conductor pole of the first power supply of contact, so that first
Neutral switch becomes being connected from ending, and the second neutral switch is held on.
14. dual-power transfer switch as claimed in claim 13, which is characterized in that when the arc radius of second part is greater than first
Partial arc radius, when one end of first connecting rod is hinged on the first end of the first neutral switch moving contact rack, described first
Connecting rod pulls the first neutral switch moving contact rack to be rotated in a first direction.
15. dual-power transfer switch as claimed in claim 13, which is characterized in that when the arc radius of second part is less than first
Partial arc radius, when one end of first connecting rod is hinged on the second end of the first neutral switch moving contact rack, described first
Connecting rod pushes the first neutral switch moving contact rack to be rotated in a first direction.
16. dual-power transfer switch as described in claim 1, which is characterized in that in first neutral switch and second
Property wiretap is oppositely arranged relative to main shaft, and the first elastic element is connected between the first neutral switch and shell, the second bullet
Property element be connected between the second neutral switch and shell so that the first neutral switch and the second neutral switch respectively will
Towards conduction position bias, third bar is pivotally mounted to main shaft for first neutral switch and the second neutral switch, can
It is rotated with the rotation of main shaft,
First neutral switch includes:
First neutral switch moving contact is pivotably mounted on the first neutral switch moving contact rack, first neutral conductor
Switch movable contact head bracket is pivotably mounted on shell, the first neutral switch moving contact can according to the pivot of main shaft pivot
Turn to contact or be detached from the static contact of the static contact of the first power supply and load-side neutral conductor pole, thus the first electricity of on or off
Source；
4th bar, one end are fixedly connected on one end of third bar, and the other end has the 4th groove, the dynamic touching of the first neutral switch
5th pin of head bracket is contained in the 4th groove.
Second neutral switch includes:
Second neutral switch moving contact is pivotably mounted on the second neutral switch moving contact rack, second neutral conductor
Switch movable contact head bracket is pivotably mounted on shell, the second neutral switch moving contact can according to the pivot of main shaft pivot
Turn to contact or be detached from the static contact of the static contact of second source and load-side neutral conductor pole, thus the second electricity of on or off
Source；
5th bar, one end are fixedly connected on the other end of third bar, and the other end has the 5th groove, and the second neutral switch is dynamic
6th pin of contact supporting is contained in the 5th groove.
17. dual-power transfer switch as claimed in claim 16, which is characterized in that when main shaft is in an intermediate position, the first phase
When wiretap and the second phase wiretap are in rest position, the first neutral switch and the second neutral switch are in conducting position
It sets, when main shaft rotates in a second direction, third bar is also rotated in a second direction, so that the 4th bar be made to be moved into the 5th pin and the
One end of four grooves is moved into the 6th pin not with the either end of the 5th groove against as third bar is into one against, the 5th bar
Step rotation, third bar push the first neutral switch moving contact rack and the first neutral switch moving contact thus along first party
To rotation, so that the first neutral switch moving contact be made to be detached from and the static contact of the first power supply and the stationary contact of load-side neutral conductor pole
The contact of head, so that the second neutral switch is held on, the first neutral switch becomes ending from being connected.
18. dual-power transfer switch as claimed in claim 16, which is characterized in that when main shaft is in an intermediate position, the first phase
When wiretap and the second phase wiretap are in rest position, the first neutral switch and the second neutral switch are in conducting position
It sets, when main shaft is rotated in a first direction, third bar is also rotated in a first direction, so that the 5th bar be made to be moved into the 6th pin and the
One end of five grooves is moved into the 5th pin not with the either end of the 4th groove against as the 5th bar is into one against, the 4th bar
Step rotation, the 5th bar push the second neutral switch moving contact rack and the second neutral switch moving contact thus along second party
To rotation, so that the second neutral switch moving contact be made to be detached from and the static contact of second source and the stationary contact of load-side neutral conductor pole
The contact of head, so that the first neutral switch is held on, the second neutral switch becomes ending from being connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810018490.6A CN110021485B (en) | 2018-01-09 | 2018-01-09 | Double-power-supply change-over switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810018490.6A CN110021485B (en) | 2018-01-09 | 2018-01-09 | Double-power-supply change-over switch |
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| Publication Number | Publication Date |
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| CN110021485A true CN110021485A (en) | 2019-07-16 |
| CN110021485B CN110021485B (en) | 2021-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810018490.6A Active CN110021485B (en) | 2018-01-09 | 2018-01-09 | Double-power-supply change-over switch |
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| CN204991544U (en) * | 2015-09-28 | 2016-01-20 | 施耐德电气工业公司 | A mechanical interlocking mechanism and dual power transfer switch for dual power transfer switch |
| CN205069433U (en) * | 2015-06-04 | 2016-03-02 | 施耐德电器工业公司 | Double -power transfer switch |
| CN207925334U (en) * | 2018-01-09 | 2018-09-28 | 施耐德电器工业公司 | Dual-power transfer switch |
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2018
- 2018-01-09 CN CN201810018490.6A patent/CN110021485B/en active Active
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|---|---|---|---|---|
| US7462791B1 (en) * | 2006-04-14 | 2008-12-09 | Reliance Controls Corporation | Interlock assembly for sequentially actuating power supply switches including a neutrally connected switch |
| CN103700519A (en) * | 2013-12-25 | 2014-04-02 | 施耐德万高（天津）电气设备有限公司 | Automatic conversion switching device with neutral pole overlapping and switching functions |
| CN205069433U (en) * | 2015-06-04 | 2016-03-02 | 施耐德电器工业公司 | Double -power transfer switch |
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| CN110021485B (en) | 2021-01-22 |
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