CN208796868U - Realize the dual-power transfer switch of neutral pole overlapping conversion - Google Patents
Realize the dual-power transfer switch of neutral pole overlapping conversion Download PDFInfo
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- CN208796868U CN208796868U CN201821612217.8U CN201821612217U CN208796868U CN 208796868 U CN208796868 U CN 208796868U CN 201821612217 U CN201821612217 U CN 201821612217U CN 208796868 U CN208796868 U CN 208796868U
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Abstract
The utility model discloses a kind of dual-power transfer switch, including the first power supply and second source, first power supply includes the first phase pole and the first neutral pole, second source includes the second phase pole and the second neutral pole, each pole includes moving contact and static contact, static contact is fixed on the shell of dual-power transfer switch, and moving contact is pivotally disposed on the shell.The moving contact of the moving contact of first phase pole and second neutral pole is driven jointly by the first actuator, and the moving contact of second phase pole and the moving contact of first neutral pole are driven jointly by the second actuator.During the first actuator is from first position driving to the second position, the moving contact of first phase pole is switched to bonding station from open position, the moving contact of second neutral pole is switched to open position from bonding station simultaneously, wherein, when the moving contact of the first phase pole and static contact start engagement, the moving contact and static contact of the second neutral pole are remained engaged with.Second source is similarly.
Description
Technical field
The utility model relates to a kind of dual-power transfer switch, are overlapped and convert more particularly, to a kind of realization neutral pole
Dual-power transfer switch.
Background technique
In general, dual-power transfer switch uses single-pole double-throw type structure, in this configuration, become by the position of moving contact
Change so that moving contact is engaged with two static contacts for belonging to different electrical power respectively.Due to the first static contact with a power supply of moving contact
It disconnects, then is engaged with the static contact of another power supply, there are neutral pole, transition period neutral pole is also disconnected, and is made
It is unstable at system, there is the risk of damage electrical equipment.Therefore, real neutral pole overlapping turns in dual-power transfer switch
It changes, i.e., keeps neutral pole engagement in the transition period, be increasingly taken seriously, many manufacturers and research institution propose wherein one after another
Property pole overlapping switching technology.However, existing these technologies exist, structure is complicated, neutral pole open away from than it is other it is minimum, with
And resist tolerance in short-term that short circuit current passes through than it is mutually extremely low the defects of.
Utility model content
According to the utility model, a kind of dual-power transfer switch for realizing neutral pole overlapping conversion is provided, is solved
State problem.Neutral pole overlapping switching may be implemented in dual-power transfer switch according to the present utility model, and structure is simple, neutral
Pole open away from than other poles open resist away from identical tolerance in short-term that short circuit current passes through with it is other extremely identical.
Dual-power transfer switch according to the present utility model includes the first power supply and second source, and first power supply includes
First phase pole and the first neutral pole, the second source include the second phase pole and the second neutral pole.Each pole include moving contact and
Static contact, the static contact are fixed on the shell of dual-power transfer switch, and the moving contact is pivotally disposed at institute
It states on shell.Wherein, the moving contact of the moving contact of first phase pole and second neutral pole is driven jointly by the first actuator
Dynamic, the moving contact of the moving contact of second phase pole and first neutral pole is driven jointly by the second actuator.Described
During one actuator drives from first position to the second position, the moving contact of first phase pole is switched to from open position
Bonding station, while the moving contact of second neutral pole is switched to open position from bonding station, wherein when first phase
When the moving contact and static contact of pole start engagement, the moving contact and static contact of second neutral pole are remained engaged with.Described
During one actuator drives from the second position to first position, the moving contact of first phase pole is switched to from bonding station
Open position, while the moving contact of second neutral pole is switched to bonding station from open position, wherein in described second
Property pole moving contact and static contact start engagement when, the moving contact and static contact of first phase pole remain engaged with.Described
Two actuators drive from the third place to during the 4th position, and the moving contact of second phase pole is switched to from open position
Bonding station, while the moving contact of first neutral pole is switched to open position from bonding station, wherein when second phase
When the moving contact and static contact of pole start engagement, the moving contact and static contact of first neutral pole are remained engaged with.Described
During two actuators drive from the 4th position to the third place, the moving contact of second phase pole is switched to from bonding station
Open position, while the moving contact of first neutral pole is switched to bonding station from open position, wherein in described first
Property pole moving contact and static contact start engagement when, the moving contact and static contact of second phase pole remain engaged with.
Dual-power transfer switch according to the present utility model can have following one or more special either individually or in combination
Sign.
One embodiment according to the present utility model, first power supply include three the first phase poles, the second source
Including three the second phase poles.That is, the first power supply and second source are three-phase four-wire power.
One embodiment according to the present utility model, under the driving of the first actuator, the moving contact of first phase pole
It is pivoted in same direction with the moving contact of second neutral pole；Under the driving of the second actuator, second phase pole is moved
The moving contact of contact and first neutral pole pivots in same direction.
One embodiment according to the present utility model, the moving contact are switched to the process of bonding station from open position
In, moving contact reaches final bonding station by initial engagement position from maximum open position, when the moving contact is in described
When maximum open position, there is most large opening；The initial engagement position is from being disconnected to locating for the moment moving contact of engagement
Position；The location of when moving contact is pivoted further to the limit while the final bonding station is to maintain engagement.Therefore,
Contact between moving contact and static contact according to the present utility model has overtravel value, and overtravel value can be initial by adjusting
The distance advanced between bonding station and final bonding station is adjusted.Moreover, neutral pole according to the present utility model open away from
With opening away from can be identical for phase pole.
One embodiment according to the present utility model, the static contact include the static contact that thickness is gradually increased from end
Piece, the moving contact include moving contact rack, moving contact piece and moving contact spring, and the moving contact spring is configured to provide for making two
A moving contact piece power close to each other, so that moving contact piece contacts static contact piece first when moving contact and static contact engage
The end, and gradually strutted by static contact piece.After moving contact piece is strutted by static contact piece, obtained between moving contact and static contact
It obtained contact pressure and was kept in contact stabilization.Also, gradually to provide contact super for distracted process by static contact piece for moving contact piece
Journey.
One embodiment according to the present utility model, the static contact piece of first phase pole and second neutral pole it is quiet
The structure of contact blade is identical and orientation is opposite；The static contact piece of the static contact piece of second phase pole and first neutral pole
Structure is identical and orientation is opposite.Just because of above-mentioned orientation, may be implemented in second while the first Xiang Jicong is disconnected to engagement
Property pole from be joined to disconnect, and while the second Xiang Jicong is disconnected to engagement the first neutral pole from be disconnected to engagement, it is on the contrary
?.
One embodiment according to the present utility model, the static contact piece of first phase pole and the stationary contact of second phase pole
Head piece structure is identical and equally oriented or the knot of the static contact piece of the static contact piece and second phase pole of first phase pole
Structure is identical and orientation is opposite.That is, the orientation and the orientation of the static contact piece of the first phase pole of the static contact piece of the second phase pole
Unrelated, they identical can may be reversed.
One embodiment according to the present utility model, first actuator are the moving contacts for connecting first phase pole
The drive rod of one end of the moving contact of one end and second neutral pole, second actuator are connection second phase pole
The drive rod of one end of the moving contact of one end of moving contact and first neutral pole.The pivot of the movement driving moving contact of drive rod
Transhipment is dynamic, and structure is simple.
One embodiment according to the present utility model, the moving contact respectively include two moving contacts at its opposite both ends
Piece, when moving contact is switched to full engagement position, moving contact is engaged with corresponding static contact respectively at both ends.
One embodiment according to the present utility model, first actuator include the moving contact for connecting first phase pole
One end and second neutral pole moving contact one end the first drive rod and connect first phase pole moving contact
The other end the second drive rod, first drive rod and the second group of drive rods are at the first couple bar；Second actuator
Third drive rod including connecting one end of one end of the moving contact of second phase pole and the moving contact of first neutral pole
And the 4th drive rod of the other end of the moving contact of connection second phase pole, the third drive rod and the 4th group of drive rods
At the second couple bar.Two bars of composition couple bar move round about, drive the pivoting action of moving contact.Use couple bar
Keep system more stable.Moreover, using couple bar that can make the dynamic touching of phase pole compared with actuator is the scheme of a drive rod
Head does not need setting rotary shaft.
One embodiment according to the present utility model, first phase pole and second neutral pole are arranged side by side, described
Second phase pole and first neutral pole are arranged side by side, and first actuator and the second actuator are straight push-pull rod respectively.This
Kind arragement construction is very simple.
One embodiment according to the present utility model, first phase pole and first neutral pole are arranged side by side, described
Second phase pole and second neutral pole are arranged side by side, and first actuator and the second actuator have bending part respectively
Integral type push-pull rod or the push-pull rod welded or riveted by end.This arrangement arranges the phase pole of the first power supply and neutral pole
Together, and by the phase pole of second source and neutral pole it is arranged together, it is user-friendly.And drive rod need to only be carried out
Adjustment, structure is still very simple, and processing is also easy to.
From below in conjunction with detailed description of the attached drawing to the optimal mode for implementing this introduction, the features described above of this introduction
It is obvious with advantage and other feature and advantage.
Detailed description of the invention
Fig. 1 is the perspective view for showing the appearance of dual-power transfer switch according to the present utility model.
Fig. 2 is the signal schematic diagram of dual-power transfer switch according to the present utility model, shows dual-power transfer switch
Each pole moving contact and static contact.
Fig. 3 is another signal schematic diagram of dual-power transfer switch according to the present utility model, shows dual power supply conversion
The moving contact and static contact of each pole of switch.
Fig. 4 is the signal schematic diagram of dual-power transfer switch according to the present utility model, shows dual-power transfer switch
Each pole moving contact and static contact and actuator.
Fig. 5 A is the perspective view of moving contact according to the present utility model；Fig. 5 B is the saturating of static contact according to the present utility model
View.
Fig. 6 is the signal schematic diagram of dual-power transfer switch according to the present utility model, shows dual-power transfer switch
Each pole moving contact and static contact and couple bar.
Fig. 7 is the signal schematic diagram of dual-power transfer switch according to the present utility model, shows the phase pole of the first power supply
The case where with neutral pole juxtaposition, the phase pole of second source and neutral pole juxtaposition.
Fig. 8 is the schematic diagram of actuator according to the present utility model, and showing actuator is the integral type with bending part
The case where push-pull rod.
Fig. 9 is the schematic diagram of actuator according to the present utility model, and showing actuator is welded or riveted by end
Push-pull rod the case where.
Figure 10 to Figure 18 is the signal schematic diagram of dual-power transfer switch according to the present utility model, shows the first power supply
From the conversion for being disconnected to engagement and from the conversion for being joined to disconnection.
In different figures, identical element is presented with like reference characters.
Specific embodiment
Hereinafter, it will be described in detail with reference to the accompanying drawings the embodiment of the present invention.
Fig. 1 is the perspective view for showing the appearance of dual-power transfer switch 9 according to the present utility model.According to the utility model
Dual-power transfer switch 9 include the first power supply 91 and second source 92.First power supply 91 includes the first phase pole 1,2,3 and first
Neutral pole 4.Second source 92 includes the second phase pole 5,6,7 and the second neutral pole 8.Each pole includes moving contact and static contact, quiet
Contact is fixed on the shell 93 of dual-power transfer switch 9, and moving contact is pivotally disposed on shell 93.It needs to illustrate
, Fig. 1 shows the first power supply 91 and second source 92 is three-phase and quadrupole power supply, respectively includes in three phase poles and one
Property pole, but the first power supply and second source can be respectively with a phase pole and a neutral pole power supply.
Fig. 2 is the signal schematic diagram of dual-power transfer switch 9 according to the present utility model, shows dual-power transfer switch
The moving contact and static contact of 9 each pole.Fig. 4 is the signal schematic diagram of dual-power transfer switch 9 according to the present utility model, is shown
The moving contact and static contact and actuator of each pole of dual-power transfer switch 9 are gone out.
As shown in figure 4, the moving contact 82 of 12,22,32 and the second neutral pole 8 of moving contact of the first phase pole 1,2,3 is by first
Actuator 94 drives jointly；The moving contact 42 of the moving contact 52,62,72 of second phase pole 5,6,7 and the first neutral pole 4 is driven by second
Moving part 95 drives jointly.It should be noted that, in order to clearly show that, the attached drawing of moving contact and static contact is omitted since Fig. 4
Label.
During the first actuator 94 is from first position driving to the second position, the moving contact of the first phase pole 1,2,3
12,22,32 are switched to bonding station from open position, at the same the moving contact 82 of the second neutral pole 8 be switched to from bonding station it is disconnected
Open position.Wherein, when the moving contact 12,22,32 and static contact 11,21,31 of the first phase pole 1,2,3 start engagement, in second
The moving contact 82 and static contact 81 of property pole 8 remain engaged with.
During the first actuator 94 is from second position driving to first position, the moving contact of the first phase pole 1,2,3
12,22,32 are switched to open position from bonding station, while the moving contact 82 of the second neutral pole 8 is switched to from open position and connects
Coincidence is set.Wherein, when the moving contact 12,22,32 and static contact 11,21,31 of the first phase pole 1,2,3 start engagement, in second
The moving contact 82 and static contact 81 of property pole 8 remain engaged with.
It so, it is possible to guarantee that the moving contact 12,22,32 of the first phase pole 1,2,3 and static contact 11,21,31 are in disconnection shape
The moving contact 82 of the second neutral pole 8 and static contact 81 are in engagement state while state.It similarly, can by similar design
Guarantee the first neutral pole while the moving contact 52,62,72 of the second phase pole 5,6,7 and static contact 51,61,71 are in an off state
4 moving contact 42 and static contact 41 is in engagement state.Generally speaking, when 1,2,3 and the second phase pole 5,6,7 of the first phase pole is disconnected
When opening, the first neutral pole 4 and the second neutral pole 8 are engaged, so that the neutral pole overlapping for realizing dual-power transfer switch 9 is cut
It changes.
One embodiment according to the present utility model, under the driving of the first actuator 94, the dynamic touching of the first phase pole 1,2,3
First 12,22,32 and second the moving contact 82 of neutral pole 8 pivot in same direction；Under the driving of the second actuator 95, the second phase
The moving contact 42 of the moving contact 52,62,72 of pole 5,6,7 and the first neutral pole 4 pivots in same direction.In this way, the first phase pole 1,
The moving contact 82 of 2,3 12,22,32 and the second neutral pole 8 of moving contact not only by the driving jointly of the first actuator 94, but also
It is pivoted in same direction under the driving of first actuator 94, the first actuator 94 is allowed to be designed fairly simple, without
Complicated transmission mechanism.Second actuator is similarly.For example, as shown in figure 3, the first actuator 94 is the first phase pole 1,2,3 of connection
Moving contact 12,22,32 one end and the second neutral pole 8 moving contact 82 one end drive rod, the second actuator 95 be connect
Connect the drive rod of one end of one end of the moving contact 52,62,72 of the second phase pole 5,6,7 and the moving contact 42 of the first neutral pole 4.
During moving contact is switched to bonding station from open position, moving contact is from maximum open position by initial
Bonding station reaches final bonding station.When moving contact is in the maximum open position, there is most large opening.It is described herein
" open away from " refer to when moving contact and static contact are kept completely separate and are in a stable gate-dividing state, moving contact and static contact
Between direct range.It opens away from bigger, the easier extinguishing of electric arc.The initial engagement position is from the moment institute for being disconnected to engagement
The position at place.The location of when moving contact is pivoted further to the limit while the final bonding station is to maintain engagement.
Therefore, the contact between moving contact and static contact according to the present utility model has overtravel value, and overtravel value can pass through tune
The distance advanced is adjusted between section initial engagement position and final bonding station.Moreover, because according to the present utility model
The distance between the distance between the static contact and moving contact of property the pole static contact of phase pole and moving contact can be designed as it is identical,
Therefore neutral pole is opened away from opening with phase pole away from can be identical.
Fig. 5 A is the perspective view of moving contact according to the present utility model.Fig. 5 B is the saturating of static contact according to the present utility model
View.Fig. 5 B shows the static contact 11 of the first phase pole 1, preferred embodiment according to the present utility model, and static contact 11 includes thickness
The static contact piece 112 gradually increased from end 111 is spent, the moving contact includes moving contact rack, moving contact piece and moving contact bullet
Spring.As an example, Fig. 5 A shows the moving contact 12 of the first phase pole 1 comprising moving contact rack 121, moving contact piece 122 and dynamic
Touch spring (not shown).Moving contact spring is configured to provide for the power for keeping two moving contact pieces close to each other, to work as moving contact
When with static contact engagement, moving contact piece contacts the end of static contact piece first, and is gradually strutted by static contact piece.In dynamic touching
After head piece is strutted by static contact piece, contact pressure is obtained between moving contact and static contact and keeps good contact and contacts
Stablize.Also, by static contact piece, gradually distracted process provides the contact excess of stroke to moving contact piece.
Preferred embodiment according to the present utility model, as shown in Fig. 2, in the static contact piece and second of the first phase pole 1,2,3
Property pole 8 static contact piece structure it is identical and orientation is opposite；The static contact piece of second phase pole 5,6,7 and the first neutral pole 4 it is quiet
The structure of contact blade is identical and orientation is opposite.Just because of above-mentioned orientation is on the contrary, may be implemented to be disconnected to engagement in the first Xiang Jicong
While the second neutral pole disconnect from being joined to, and while the second Xiang Jicong is disconnected to engagement the first neutral pole from disconnection
To engagement, vice versa.It should be noted that in this embodiment, as long as the structure of static contact piece is identical, static contact
Structure can be different, for example, the first phase pole 1,2,3 11,21,31 to the second neutral pole 8 of static contact static contact 81 it is long etc..
One embodiment according to the present utility model, the static contact piece of the first phase pole 1,2,3 and the second phase pole 5,6,7 it is quiet
The structure of contact blade is identical and equally oriented, as shown in Fig. 2, or the first phase pole 1,2,3 static contact piece and the second phase pole 5,6,7
Static contact piece structure it is identical and orientation on the contrary, as shown in Figure 3.That is, the static contact piece of the second phase pole 5,6,7 takes
Orientation to the static contact piece with the first phase pole 1,2,3 is unrelated, they identical can may be reversed.As long as actuator is accordingly
Design.
Preferred embodiment according to the present utility model, moving contact respectively include two moving contact pieces at its opposite both ends,
When moving contact is switched to full engagement position, moving contact is engaged with corresponding static contact respectively at both ends.That is, each
Pole includes two static contacts, and two groups of moving contact pieces of moving contact are engaged with the static contact at both ends respectively.It should be noted that dynamic touching
Head can also be designed to only include one group of moving contact piece, and each pole only includes a static contact, this group of moving contact piece is quiet with this
Contacts mates.Alternatively, moving contact can be designed to only include one group of moving contact piece, and each pole includes two static contacts,
Moving contact is rotated to contact at one end with static contact, and moving contact joins in the other end using the static contact of copper pigtail line and the other end is fixed
It connects.
One embodiment according to the present utility model, as shown in fig. 6, when moving contact both ends respectively with corresponding static contact
When engagement, the first actuator 94 includes one end and the second neutral pole 8 of the moving contact 12,22,32 of the first phase pole 1,2,3 of connection
The second of the other end of the moving contact 12,22,32 of the first phase pole 1,2,3 of first drive rod and connection of one end of moving contact 82
Drive rod, first drive rod and the second group of drive rods are at the first couple bar.Second actuator 95 is similarly.Form couple bar
Two bars move round about, drive the pivoting action of moving contact.Keep system more stable using couple bar.Moreover, with driving
Part is that the scheme of a drive rod is compared, and uses couple bar that the moving contact of phase pole can be made not need setting rotary shaft.
One embodiment according to the present utility model, as shown in figs. 4 and 6,1,2,3 and the second neutral pole 8 of the first phase pole is simultaneously
Arrangement is set, and 5,6,7 and the first neutral pole 4 of the second phase pole is arranged side by side.First actuator 94 and the second actuator 95 are straight respectively
Push-pull rod.This arragement construction is very simple.
One embodiment according to the present utility model, as shown in fig. 7,1,2,3 and the first neutral pole 4 of the first phase pole and arranging
It sets, 5,6,7 and the second neutral pole 8 of the second phase pole is arranged side by side.First actuator 94 and the second actuator 95 be respectively have it is curved
The integral type push-pull rod of folding part, as shown in figure 8, or the push-pull rod that is welded or riveted by end, as shown in Figure 9.This arrangement
1,2,3 and the first neutral pole 4 of the first phase pole of first power supply 91 is arranged together, and by the second phase pole 5 of second source 92,
6,7 and the second neutral poles 8 are arranged together, user-friendly.And drive rod need to be only adjusted, structure is still very simple
Single, processing is also easy to.It should be noted that be arranged side by side in 1,2,3 and the first neutral pole 4 of the first phase pole, the second phase pole 5,
In the case that 6,7 and the second neutral poles 8 are arranged side by side, couple bar also can be used and driven.It should be noted Fig. 2
First phase pole, 1,2,3 and the second neutral pole 8 is put together with 3, and 5,6,7 and the first neutral pole 4 of the second phase pole is put
Together, it is intended merely to obtain clearly Principle representation, not indicates certain and need to be arranged so that.
In the following, being more clearly shown that realization neutral pole overlapping conversion according to the present utility model by one group of signal schematic diagram
Process.
As shown in Figure 10, the first power supply 91 and second source 92 be all in off-state, and at this point, 4 He of the first neutral pole
Second neutral pole 8 is all in engagement state.
As shown in figure 11, the first power supply 91 is carried out from the conversion for being disconnected to engagement, and the second neutral pole 8 has also assisted in conversion,
The state of the moment shown in Figure 11, the first power supply 91 do not change, and the first phase pole 1,2,3 is still in off-state, in second
The state of property pole 8 does not also change, still in engagement state.
As shown in figure 12, the first power supply 91 continues from the conversion for being disconnected to engagement, the moment shown in Figure 12, and first
The state of power supply 91 is changed, and the first phase pole 1,2,3 is converted to engagement state, but the state of the second neutral pole 8 does not become
Change, still in engagement state.
As shown in figure 13, the first power supply 91 continues from the conversion for being disconnected to engagement, the moment shown in Figure 13, and first
The state of power supply 91 does not change, and the first phase pole 1,2,3 still remains engaged with state, but the state of the second neutral pole 8 is become
Change, is converted to off-state.
As shown in figure 14, the first power supply 91 continues from the conversion for being disconnected to engagement, the moment shown in Figure 14, and first
The state of power supply 91 does not change, and the first phase pole 1,2,3 still remains engaged with state, and the state of the second neutral pole 8 does not also change,
It remains off.
So far, the first power supply 91 is completed from the conversion for being disconnected to engagement.In above process, second source 92 remains open
State, and the first neutral pole 4 remains engaged with state.
Hereinafter, the first power supply 91 starts from the conversion for being joined to disconnection.
As shown in figure 15, the first power supply 91 is carried out from the conversion for being joined to disconnection, in moment shown in figure 15, the first power supply
91 state does not change, and the first phase pole 1,2,3 still remains engaged with state, and the state of the second neutral pole 8 does not also change, and keeps
Off-state.
As shown in figure 16, the first power supply 91 continues from the conversion for being joined to disconnection, the moment shown in Figure 16, and first
The state of power supply 91 does not change, and the first phase pole 1,2,3 still remains engaged with state, but the state of the second neutral pole 8 is become
Change, is converted to engagement state.At this point, the first neutral pole 4 is not engaged in conversion, state is still remained engaged with.Therefore, at this time in first
Property pole 4 and the second neutral pole 8 all in engagement state, also known as neutral pole is overlapped.
As shown in figure 17, the first power supply 91 continues from the conversion for being joined to disconnection, the moment shown in Figure 17, and first
The state of power supply 91 is changed, and the first phase pole 1,2,3 is converted to off-state, but the state of the second neutral pole 8 does not become
Change, still remains engaged with state.At this point, the first neutral pole 4 is not engaged in conversion, state is still remained engaged with.Therefore, at this time in first
Property pole 4 and the second neutral pole 8 all in engagement state, also known as neutral pole is overlapped.
As shown in figure 18, the first power supply 91 continues from the conversion for being joined to disconnection, the moment shown in Figure 18, and first
The state of power supply 91 does not change, and the first phase pole 1,2,3 still remains off, and the state of the second neutral pole 8 does not also change,
Still remain engaged with state.At this point, the first neutral pole 4 is not engaged in conversion, state is still remained engaged with.Therefore, first neutral at this time
All in engagement state, also known as neutral pole is overlapped for pole 4 and the second neutral pole 8.
So far, the first power supply 91 is completed from the conversion for being joined to disconnection.
Principle of the second source 92 from the conversion for being disconnected to engagement and from the conversion for being joined to disconnection and 91 phase of the first power supply
Together.
In short, neutral pole overlapping switching may be implemented in dual-power transfer switch according to the present utility model, and there is knot
Structure is simple, and neutral pole is opened away from resisting the tolerance in short-term and other poles that short circuit current passes through away from identical than opening for other poles
Phase same advantages.
Although various optimal modes perhaps for executing this introduction are described in detail, involved by these introductions
And the technical staff in field the various alternative aspects for practicing this introduction within the scope of the appended claims will be recognized.
Claims (12)
1. a kind of dual-power transfer switch, including the first power supply and second source, first power supply include the first phase pole (1,2,
3) and the first neutral pole (4), the second source include the second phase pole (5,6,7) and the second neutral pole (8), and each pole includes dynamic
Contact and static contact, the static contact are fixed on the shell of dual-power transfer switch, and the moving contact is pivotly set
It sets on the housing,
It is characterized in that,
The moving contact of the moving contact of first phase pole (1,2,3) and second neutral pole (8) is driven jointly by the first actuator
Dynamic, the moving contact of the moving contact of second phase pole (5,6,7) and first neutral pole (4) is driven jointly by the second actuator
It is dynamic,
During first actuator is from first position driving to the second position, first phase pole (1,2,3) is moved
Contact is switched to bonding station from open position, at the same the moving contact of second neutral pole (8) be switched to from bonding station it is disconnected
Open position, wherein when the moving contact and static contact of first phase pole (1,2,3) start engagement, second neutral pole (8)
Moving contact and static contact remain engaged with,
During first actuator is from second position driving to first position, first phase pole (1,2,3) is moved
Contact is switched to open position from bonding station, while the moving contact of second neutral pole (8) is switched to from open position and connects
Coincidence is set, wherein when the moving contact of second neutral pole (8) and static contact start engagement, first phase pole (1,2,3)
Moving contact and static contact remain engaged with,
During second actuator is from the third place driving to four positions, second phase pole (5,6,7) is moved
Contact is switched to bonding station from open position, at the same the moving contact of first neutral pole (4) be switched to from bonding station it is disconnected
Open position, wherein when the moving contact and static contact of second phase pole (5,6,7) start engagement, first neutral pole (4)
Moving contact and static contact remain engaged with,
During second actuator is from the driving of the 4th position to the third place, second phase pole (5,6,7) is moved
Contact is switched to open position from bonding station, while the moving contact of first neutral pole (4) is switched to from open position and connects
Coincidence is set, wherein when the moving contact of first neutral pole (4) and static contact start engagement, second phase pole (5,6,7)
Moving contact and static contact remain engaged with.
2. dual-power transfer switch according to claim 1, which is characterized in that first power supply includes three the first phases
Pole (1,2,3), the second source include three the second phase poles (5,6,7).
3. dual-power transfer switch according to claim 1, which is characterized in that described under the driving of the first actuator
The moving contact of first phase pole (1,2,3) and the moving contact of second neutral pole (8) pivot in same direction；In the second actuator
Driving under, the moving contact of the moving contact of second phase pole (5,6,7) and first neutral pole (4) pivot in same direction
Turn.
4. dual-power transfer switch according to claim 1, which is characterized in that the moving contact is switched to from open position
During bonding station, moving contact reaches final bonding station by initial engagement position from maximum open position, when described
When moving contact is in the maximum open position, there is most large opening；The initial engagement position is from the wink for being disconnected to engagement
Between the location of moving contact；Moving contact is pivoted further to the limit when institute while the final bonding station is to maintain engagement
The position at place.
5. dual-power transfer switch according to claim 1, which is characterized in that the static contact include thickness from end by
Gradually increased static contact piece, the moving contact include moving contact rack, moving contact piece and moving contact spring, the moving contact spring
It is configured to provide for the power for keeping two moving contact pieces close to each other, so that moving contact piece is first when moving contact and static contact engage
The end of static contact piece is contacted, and is gradually strutted by static contact piece.
6. dual-power transfer switch according to claim 5, which is characterized in that the stationary contact of first phase pole (1,2,3)
Head piece is identical with the structure of the static contact piece of second neutral pole (8) and orientation is opposite；Second phase pole (5,6,7) it is quiet
Contact blade is identical with the structure of the static contact piece of first neutral pole (4) and orientation is opposite.
7. dual-power transfer switch according to claim 6, which is characterized in that the stationary contact of first phase pole (1,2,3)
Head piece and the static contact piece of second phase pole (5,6,7) structure is identical and equally oriented or first phase pole (1,2,3)
Static contact piece it is identical with the structure of the static contact piece of second phase pole (5,6,7) and orientation is opposite.
8. dual-power transfer switch described in any one of -7 according to claim 1, which is characterized in that first actuator is
Connect the driving of one end of one end of the moving contact of first phase pole (1,2,3) and the moving contact of second neutral pole (8)
Bar, second actuator are one end and first neutral pole (4) for connecting the moving contact of second phase pole (5,6,7)
The drive rod of one end of moving contact.
9. dual-power transfer switch according to claim 1-7, which is characterized in that the moving contact is opposite at it
Both ends respectively include two moving contact pieces, when moving contact is switched to full engagement position, moving contact both ends respectively with phase
The static contact engagement answered.
10. dual-power transfer switch according to claim 9, which is characterized in that first actuator includes connection institute
State first drive rod of one end of one end of the moving contact of the first phase pole (1,2,3) and the moving contact of second neutral pole (8)
And the second drive rod of the other end of the moving contact of connection first phase pole (1,2,3), first drive rod and second
Group of drive rods is at the first couple bar；Second actuator includes one end of the moving contact of connection second phase pole (5,6,7)
With the third drive rod of one end of the moving contact of first neutral pole (4) and moving for connection second phase pole (5,6,7)
4th drive rod of the other end of contact, the third drive rod and the 4th drive rod form the second couple bar.
11. dual-power transfer switch described in any one of -7 according to claim 1, which is characterized in that first phase pole (1,
2,3) it is arranged side by side with second neutral pole (8), second phase pole (5,6,7) and first neutral pole (4) are simultaneously arranged
It sets, first actuator and the second actuator are straight push-pull rod respectively.
12. dual-power transfer switch described in any one of -7 according to claim 1, which is characterized in that first phase pole (1,
2,3) it is arranged side by side with first neutral pole (4), second phase pole (5,6,7) and second neutral pole (8) are simultaneously arranged
It sets, first actuator and the second actuator are to have the integral type push-pull rod of bending part or by end welding or riveting respectively
The push-pull rod connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821612217.8U CN208796868U (en) | 2018-09-30 | 2018-09-30 | Realize the dual-power transfer switch of neutral pole overlapping conversion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821612217.8U CN208796868U (en) | 2018-09-30 | 2018-09-30 | Realize the dual-power transfer switch of neutral pole overlapping conversion |
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| Publication Number | Publication Date |
|---|---|
| CN208796868U true CN208796868U (en) | 2019-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821612217.8U Active CN208796868U (en) | 2018-09-30 | 2018-09-30 | Realize the dual-power transfer switch of neutral pole overlapping conversion |
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| CN (1) | CN208796868U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3872823A1 (en) * | 2020-02-27 | 2021-09-01 | Schneider Electric Industries SAS | Neutral line overlapping mechanism and dual-power automatic transfer switch including the same |
-
2018
- 2018-09-30 CN CN201821612217.8U patent/CN208796868U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3872823A1 (en) * | 2020-02-27 | 2021-09-01 | Schneider Electric Industries SAS | Neutral line overlapping mechanism and dual-power automatic transfer switch including the same |
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