CN208908382U - Mixed type dual power supply conversion device and dual power supply system - Google Patents
Mixed type dual power supply conversion device and dual power supply system Download PDFInfo
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- CN208908382U CN208908382U CN201822038624.9U CN201822038624U CN208908382U CN 208908382 U CN208908382 U CN 208908382U CN 201822038624 U CN201822038624 U CN 201822038624U CN 208908382 U CN208908382 U CN 208908382U
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- 230000009977 dual effect Effects 0.000 title abstract description 6
- 238000006243 chemical reaction Methods 0.000 title description 2
- 239000007787 solid Substances 0.000 claims abstract description 141
- 238000002955 isolation Methods 0.000 claims description 61
- 239000012212 insulator Substances 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 8
- 230000017525 heat dissipation Effects 0.000 claims description 8
- 230000002159 abnormal effect Effects 0.000 claims description 6
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 101000668165 Homo sapiens RNA-binding motif, single-stranded-interacting protein 1 Proteins 0.000 description 25
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- 101100365087 Arabidopsis thaliana SCRA gene Proteins 0.000 description 22
- 101150105073 SCR1 gene Proteins 0.000 description 22
- 101100134054 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) NTG1 gene Proteins 0.000 description 22
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Abstract
The utility model discloses a mixed type dual power transfer device and dual power supply system, include: the isolating switch is arranged on a power supply line of the main power supply and the standby power supply and is used for isolating the output of the main power supply and the output of the standby power supply so that the main power supply and the standby power supply can not supply power at the same time; the first circuit breaker is arranged on a first power supply line of the main power supply; the first solid-state change-over switch is arranged on a second power supply line of the main power supply; the second circuit breaker is arranged on a first power supply line of the standby power supply; the second solid-state change-over switch is arranged on a second power supply line of the standby power supply; a heat sink for dissipating heat for the first solid state diverter switch and the second solid state diverter switch; the first circuit breaker and the second circuit breaker are the same circuit breaker, or the first solid-state diverter switch and the second solid-state diverter switch are the same solid-state diverter switch. Therefore, the solid-state change-over switch has the advantages that the structure is simple, the cost is low, the reliability of the solid-state change-over switch is improved, and the service life of the solid-state change-over switch is prolonged.
Description
Technical field
The utility model relates to dual power supply conversion arts, more particularly to a kind of mixed type double-power supply switching device and double electricity
Source system.
Background technique
Currently, usually important power load is equipped with duplex feeding power supply (main electricity in places such as hospital, airport and fire-fightings
Source and backup power source), it is therefore an objective to it is powered in the case where mains power failure using backup power source, to ensure uninterrupted power supply.It is existing
Have in technology, main power source and backup power source use dual-power transfer switch realization power switching.When disconnection fault occurs for main power source
When, power supply line can be switched to backup power source from main power source by dual-power transfer switch, to ensure that electrical equipment continuously, is reliably transported
Row.But existing dual-power transfer switch uses 2 solid converting switch and 2 breakers, structure is complicated, higher cost.
Therefore, how to provide a kind of scheme of solution above-mentioned technical problem is that those skilled in the art needs to solve at present
The problem of.
Utility model content
The purpose of the utility model is to provide a kind of mixed type double-power supply switching device and double power-supply systems, so that device knot
Structure is simple, and cost is relatively low, and improves the reliability and service life of solid converting switch.
In order to solve the above technical problems, the utility model provides a kind of mixed type double-power supply switching device, comprising:
Disconnecting switch in the power supply line of main power source and backup power source, for by the main power source with it is described spare
The output of power supply is kept apart, and the main power source is made not power simultaneously with the backup power source；
The first breaker in the first power supply line of the main power source；
The first solid converting switch in the second power supply line of the main power source；
The second breaker in the first power supply line of the backup power source；
The second solid converting switch in the second power supply line of the backup power source；
For the radiator for first solid converting switch and second solid converting switch heat dissipation；The mixing
Type double-power supply switching device is for when one of power supply normal power supply, making the electricity in the main power source and the backup power source
First power supply line in source is in connected state；When this switches power supply to another power supply, make the first supply lines of the power supply
Road disconnects while is connected to the second power supply line of another power supply, be then connected to the first power supply line of another power supply,
Second power supply line disconnects；
Wherein, first breaker and second breaker are that same breaker or first solid-state switching are opened
It closes and second solid converting switch is same solid converting switch.
Preferably, when first breaker and second breaker are same breaker, the disconnecting switch packet
Include the first isolation sub switch and the second isolation sub switch；Wherein:
The first end that sub switch is isolated with described first in the first end of first solid converting switch connects, common end
It is connect with the output end of the main power source, the first end of second solid converting switch is isolated the of sub switch with described second
One end connection, common end connect with the output end of the backup power source, described first be isolated the second end of sub switch respectively with
The second end of the second isolation sub switch is connected with the first end of breaker, and the second end of the breaker is respectively with described the
The second end of one solid converting switch is connected with the second end of second solid converting switch, common end and electrical equipment
Power end connection；
Then the mixed type double-power supply switching device is specifically used in the main power source being the electrical equipment normal power supply
When, so that the first isolation sub switch and breaker is in closed state, and make the second isolation sub switch, the first solid-state
Switching switch and the second solid converting switch are in off-state；When the main power source abnormal electrical power supply, make the breaker
It disconnects, while is closed second solid converting switch, then open the first isolation sub switch disconnection, the second insulator
Close conjunction, breaker closing, the disconnection of the second solid converting switch.
Preferably, when first solid converting switch and second solid converting switch are same solid converting switch
When, the disconnecting switch includes the first isolation sub switch and the second isolation sub switch；Wherein:
The first end of first breaker with described first be isolated sub switch first end connect, common end with it is described
The output end of main power source connects, and the first end that sub switch is isolated with described second in the first end of second breaker connects,
Common end is connect with the output end of the backup power source, and the second end of the first isolation sub switch is isolated with described second respectively
The second end of sub switch is connected with the first end of solid converting switch, and the second end of the solid converting switch is respectively with described
The second end of one breaker is connected with the second end of second breaker, the power end connection of common end and electrical equipment；
Then the mixed type double-power supply switching device is specifically used in the main power source being the electrical equipment normal power supply
When, make first breaker and it is described second isolation sub switch be in closed state, and make it is described first isolation sub switch,
Solid converting switch and the second breaker are in off-state；When the main power source abnormal electrical power supply, make first open circuit
Device disconnects, while is closed the solid converting switch, then disconnect second breaker closing, solid converting switch,
Second isolation sub switch disconnects, first insulator closes the switch after main power source restores normal.
In order to solve the above technical problems, the utility model additionally provides a kind of double power-supply system, including main power source and spare
Power supply further includes any of the above-described kind of mixed type double-power supply switching device.
The utility model provides a kind of mixed type double-power supply switching device, comprising: set on main power source and backup power source
Disconnecting switch in power supply line makes main power source and backup power source not for keeping apart the output of main power source and backup power source
It powers simultaneously；The first breaker in the first power supply line of main power source；In the second power supply line of main power source
First solid converting switch；The second breaker in the first power supply line of backup power source；Set on the second of backup power source
The second solid converting switch in power supply line；For for the first solid converting switch and the second solid converting switch heat dissipation dissipate
Hot device；Wherein, the first breaker and the second breaker are same breaker or the first solid converting switch and the switching of the second solid-state
Switch is same solid converting switch.
As it can be seen that the main power source and backup power source of the application include Liang Tiao power supply line, by being arranged in power supply line
Disconnecting switch, breaker and solid converting switch realize the power switching between two power supplys.The breaker and solid-state of the application
The quantity of switching switch includes two kinds of situations: 2 breakers and 1 solid converting switch, 1 breaker and 2 solid-state switchings
Switch.So compared with the prior art, the application is on the basis of reducing total usage quantity of breaker and solid converting switch
Still realize the power switching of main power source and backup power source, so that apparatus structure is simple, cost is relatively low.In addition, it is contemplated that solid
The loss of state switching switch is larger, so the radiator that the application is equipped with as solid converting switch heat dissipation, to improve solid-state
Switch the reliability and service life of switch.
The utility model additionally provides a kind of double power-supply system, having the same with above-mentioned mixed type double-power supply switching device
Beneficial effect.
Detailed description of the invention
It, below will be to the prior art and embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is a kind of structural schematic diagram of mixed type double-power supply switching device provided by the embodiment of the utility model；
Fig. 2 is that the specific structure of the first mixed type double-power supply switching device provided by the embodiment of the utility model is illustrated
Figure；
Fig. 3 is that the specific structure of second of mixed type double-power supply switching device provided by the embodiment of the utility model is illustrated
Figure.
Specific embodiment
The core of the utility model is to provide a kind of mixed type double-power supply switching device and double power-supply system, so that device knot
Structure is simple, and cost is relatively low, and improves the reliability and service life of solid converting switch.
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
Fig. 1 is please referred to, Fig. 1 is that a kind of structure of mixed type double-power supply switching device provided by the embodiment of the utility model is shown
It is intended to.
The mixed type double-power supply switching device includes:
Disconnecting switch K in the power supply line of main power source and backup power source, for by main power source and backup power source
Output is kept apart, and main power source is made not power simultaneously with backup power source；
The first breaker CB1 in the first power supply line of main power source；
The first solid converting switch SCR1 in the second power supply line of main power source；
The second breaker CB2 in the first power supply line of backup power source；
The second solid converting switch SCR2 in the second power supply line of backup power source；
For the radiator S for the first solid converting switch SCR1 and the second solid converting switch SCR2 heat dissipation；Mixed type
Double-power supply switching device in main power source and backup power source for when one of power supply normal power supply, supplying the first of the power supply
Electric line is in connected state；When this switches power supply to another power supply, disconnect the first power supply line of the power supply simultaneously
It is connected to the second power supply line of another power supply, is then connected to the first power supply line of another power supply, the second supply lines
Road disconnects；
Wherein, the first breaker CB1 and the second breaker CB2 is same breaker CB or the first solid converting switch
SCR1 and the second solid converting switch SCR2 is same solid converting switch SCR.
Specifically, when the first breaker CB1 and the second breaker CB2 is same breaker CB, the mixed type of the application
Double-power supply switching device includes disconnecting switch K, breaker CB, the first solid converting switch SCR1 and the second solid converting switch
SCR2；When the first solid converting switch SCR1 and the second solid converting switch SCR2 is same solid converting switch SCR, this Shen
Mixed type double-power supply switching device please includes disconnecting switch K, the first breaker CB1, the open circuit of solid converting switch SCR and second
Device CB2；Its working principle is that:
It is power supply for electrical equipment by main power source in the normal situation of main power source；In the case where mains power failure, by standby
It is power supply for electrical equipment (premise: guaranteeing that backup power source is normal) with power supply.The application is arranged between main power source and electrical equipment
Liang Tiao power supply line (referred to as the first power supply line and the second power supply line of main power source), while in backup power source and electrical equipment
Between be also provided with Liang Tiao power supply line (referred to as the first power supply line and the second power supply line of backup power source).
In switch needed for for the switching of both main power source and backup power source selection, the application is turned using mixed type dual power supply
Circuit is changed, i.e., breaker (belonging to mechanical switch), second are set on main power source and respective first power supply line of backup power source
Solid converting switch (belonging to solid-state switch) is set in power supply line, it is therefore an objective to rationally utilize the excellent of mechanical switch and solid-state switch
Point uses when switching solid converting switch as the two, to improve switch speed, reduces power-off time；Using breaker as
The two uses when powering, to reduce on-state loss (the main power source correspondence: the first breaker CB1, the first solid converting switch of circuit
SCR1；Backup power source is corresponding: the second breaker CB2 and the second solid converting switch SCR2).
For example, using main power source by the power supply line where the first breaker CB1 in the normal situation of main power source
Electric equipment power supply.In the case where mains power failure, main power source is switched into backup power source: where the first breaker of cutting CB1
Power supply line, while the power supply line where the second solid converting switch SCR2 is connected to, by load current from the first breaker
Power supply line where CB1 is transferred to the power supply line where the second solid converting switch SCR2, makes backup power source by second
Power supply line where solid converting switch SCR2 starts as power supply for electrical equipment.Then it is connected to where the second breaker CB2
Power supply line then cuts off the power supply line where the second solid converting switch SCR2, and backup power source is made to pass through the second breaker
Power supply line where CB2 continues as power supply for electrical equipment.It, can directly will be standby after main power source restores normal (maintenance or replacement)
With switch power supply to main power source or wait backup power source failure after switch to main power source, similarly, backup power source is switched into main electricity
Source: the power supply line where the second breaker CB2 of cutting, while being connected to the supply lines where the first solid converting switch SCR1
Road starts main power source for power supply for electrical equipment by the power supply line where the first solid converting switch SCR1.Then it is connected to
Power supply line where first breaker CB1 then cuts off the power supply line where the first solid converting switch SCR1, makes main electricity
Source is power supply for electrical equipment again through the power supply line where the first breaker CB1.
Meanwhile the application considers that main power source and backup power source can share the same breaker CB, can also share same
One solid converting switch SCR, so the first breaker CB1 and the second breaker CB2 of the application can be the same breaker
CB, or, the first solid converting switch SCR1 and the second solid converting switch SCR2 can be the same solid converting switch SCR, from
And reduce total usage quantity of breaker and solid converting switch, so that apparatus structure is simple, cost is relatively low.
Moreover, because main power source and backup power source are not powered simultaneously, so being additionally provided with disconnecting switch in the device of the application
K, disconnecting switch K can keep apart the output of main power source and backup power source, and main power source is made not power simultaneously with backup power source.This
Outside, it is contemplated that the loss of solid converting switch is larger, so the radiator S that the application is additionally provided with as solid converting switch heat dissipation,
To improve the reliability and service life of solid converting switch.
The utility model provides a kind of mixed type double-power supply switching device, comprising: set on main power source and backup power source
Disconnecting switch in power supply line makes main power source and backup power source not for keeping apart the output of main power source and backup power source
It powers simultaneously；The first breaker in the first power supply line of main power source；In the second power supply line of main power source
First solid converting switch；The second breaker in the first power supply line of backup power source；Set on the second of backup power source
The second solid converting switch in power supply line；For for the first solid converting switch and the second solid converting switch heat dissipation dissipate
Hot device；Wherein, the first breaker and the second breaker are same breaker or the first solid converting switch and the switching of the second solid-state
Switch is same solid converting switch.
As it can be seen that the main power source and backup power source of the application include Liang Tiao power supply line, by being arranged in power supply line
Disconnecting switch, breaker and solid converting switch realize the power switching between two power supplys.The breaker and solid-state of the application
The quantity of switching switch includes two kinds of situations: 2 breakers and 1 solid converting switch, 1 breaker and 2 solid-state switchings
Switch.So compared with the prior art, the application is on the basis of reducing total usage quantity of breaker and solid converting switch
Still realize the power switching of main power source and backup power source, so that apparatus structure is simple, cost is relatively low.In addition, it is contemplated that solid
The loss of state switching switch is larger, so the radiator that the application is equipped with as solid converting switch heat dissipation, to improve solid-state
Switch the reliability and service life of switch.
On the basis of the above embodiments:
Referring to figure 2., Fig. 2 is the specific of the first mixed type double-power supply switching device provided by the embodiment of the utility model
Structural schematic diagram.
As a kind of preferred embodiment, when the first breaker CB1 and the second breaker CB2 is same breaker CB,
Disconnecting switch includes the first isolation sub switch K1 and the second isolation sub switch K2；Wherein:
The first end of first solid converting switch SCR1 with first be isolated sub switch K1 first end connect, common end with
The output end of main power source connects, and the first end that sub switch K2 is isolated with second in the first end of the second solid converting switch SCR2 connects
It connects, the second end of the output end connection of common end and backup power source, the first isolation sub switch K1 is opened with the second insulator respectively
Close K2 second end connected with the first end of breaker CB, the second end of breaker CB respectively with the first solid converting switch SCR1
Second end connected with the second end of the second solid converting switch SCR2, the connection of the power end of common end and electrical equipment；
Then mixed type double-power supply switching device is specifically used for making the first isolation when main power source is electrical equipment normal power supply
Sub switch K1 and breaker CB are in closed state, and make the second isolation sub switch K2, the first solid converting switch SCR1 and
Second solid converting switch SCR2 is in off-state；When main power source abnormal electrical power supply, breaker CB is disconnected, while making the
Two solid converting switch SCR2 closure then disconnects the first isolation sub switch K1, the second isolation sub switch K2 closure, breaker
CB closure, the second solid converting switch SCR2 are disconnected.
Specifically, as shown in Fig. 2, main power source You Liangtiao power supply line: the first isolation sub switch K1- breaker CB branch,
First solid converting switch SCR1 branch.Backup power source You Liangtiao power supply line: the second isolation sub switch K2- breaker CB branch
Road, the second solid converting switch SCR2 branch.In the normal situation of main power source, sub switch K1 is isolated in closure first and closure is disconnected
Road device CB makes main power source pass through the first isolation sub switch K1- breaker CB branch power supply for electrical equipment.Meanwhile second is isolated
Sub switch K2, the first solid converting switch SCR1 and the second solid converting switch SCR2 are disconnected, and the second solid-state switching at this time is opened
SCR2 branch is closed as emergency bypass.In the case where mains power failure, cut-off breaker CB is closed at the switching of the second solid-state
Switch SCR2 makes load current be transferred to the second solid converting switch SCR2 from the first isolation sub switch K1- breaker CB branch
Branch is at this time power supply for electrical equipment by the second solid converting switch SCR2 branch by backup power source, to realize main power source
To being switched fast for backup power source.
After main power source switches to backup power source, the first isolation sub switch K1 is disconnected, the second insulator is then successively closed
Switch K2, close circuit breaker CB, the second solid converting switch SCR2 is disconnected, makes load current from the second solid converting switch SCR2
Branch is transferred to the second isolation sub switch K2- breaker CB branch, is broken at this time by backup power source by the second isolation sub switch K2-
Road device CB branch is power supply for electrical equipment.After main power source restores normal, backup power source is switched into main power source.
Similarly, after main power source restores normal, the first solid converting switch SCR1 branch is as emergency bypass.Work as standby electricity
When source switches to main power source, cut-off breaker CB is closed at the first solid converting switch SCR1, make load current from second every
Ionic switch K2- breaker CB branch is transferred to the first solid converting switch SCR1 branch, is consolidated at this time by main power source by first
It is power supply for electrical equipment that state, which switches switch SCR1 branch, to realize backup power source being switched fast to main power source.
After backup power source switches to main power source, the second isolation sub switch K2 is disconnected, the first insulator is then successively closed
Switch K1, close circuit breaker CB, the first solid converting switch SCR1 is disconnected, makes load current from the first solid converting switch SCR1
Branch is transferred to the first isolation sub switch K1- breaker CB branch, at this time by main power source again through the first isolation sub switch K1-
Breaker CB branch is power supply for electrical equipment.
Referring to figure 3., Fig. 3 is the specific of second of mixed type double-power supply switching device provided by the embodiment of the utility model
Structural schematic diagram.
As a kind of preferred embodiment, when the first solid converting switch SCR1 and the second solid converting switch SCR2 are same
When one solid converting switch SCR, disconnecting switch includes the first isolation sub switch K1 and the second isolation sub switch K2；Wherein:
The first end that sub switch K1 is isolated with first in the first end of first breaker CB1 connects, common end and main power source
Output end connection, the first end of the second breaker CB2 with second be isolated sub switch K2 first end connection, common end with it is standby
It is connected with the output end of power supply, the second end and consolidate that sub switch K2 is isolated with second respectively in the second end of the first isolation sub switch K1
The first end that state switches switch SCR connects, the second end of the solid converting switch SCR second end with the first breaker CB1 respectively
It is connected with the second end of the second breaker CB2, the power end connection of common end and electrical equipment；
Then mixed type double-power supply switching device is specifically used for making the first open circuit when main power source is electrical equipment normal power supply
Device CB1 and second isolation sub switch K2 be in closed state, and make the first isolation sub switch K1, solid converting switch SCR and
Second breaker CB2 is in off-state；When main power source abnormal electrical power supply, disconnect the first breaker CB1, while making solid-state
Switch switch SCR closure, then disconnects the second breaker CB2 closure, solid converting switch SCR, the second isolation sub switch K2
It disconnects, the first isolation sub switch K1 closure after main power source restores normal.
Specifically, as shown in figure 3, main power source You Liangtiao power supply line: the first breaker CB1 branch, the first insulator are opened
Close K1- solid converting switch SCR branch.Backup power source You Liangtiao power supply line: the second breaker CB2 branch, the second insulator
Switch K2- solid converting switch SCR branch.In the normal situation of main power source, it is closed the first breaker CB1, keeps main power source logical
Crossing the first breaker CB1 branch is power supply for electrical equipment.Meanwhile the second isolation of closure sub switch K2 (the first isolation sub switch K1,
Solid converting switch SCR and the second breaker CB2 are disconnected), make the second isolation sub switch K2- solid converting switch SCR branch
As emergency bypass.In the case where mains power failure, the first breaker CB1 is disconnected, solid converting switch SCR is closed at,
Load current is set to be transferred to the second isolation sub switch K2- solid converting switch SCR branch from the first breaker CB1 branch, at this time
It is power supply for electrical equipment that sub switch K2- solid converting switch SCR branch, which is isolated, by second by backup power source, to realize main electricity
Source is switched fast to backup power source.
After main power source switches to backup power source, it is successively closed the second breaker CB2, solid converting switch SCR is disconnected, is disconnected
The second isolation sub switch K2 is opened, load current is made to be transferred to second from the second isolation sub switch K2- solid converting switch SCR branch
Breaker CB2 branch is at this time power supply for electrical equipment by the second breaker CB2 branch by backup power source.Restore in main power source
After normal, backup power source is switched into main power source.
Similarly, after main power source restores normal, closure the first isolation sub switch K1 makes the first isolation sub switch K1- solid-state
Switch switch SCR branch as emergency bypass.When backup power source switches to main power source, the second breaker CB2 is disconnected, is closed simultaneously
Solid converting switch SCR is closed, so that load current is transferred to the first isolation sub switch K1- solid-state from the second breaker CB2 branch and cuts
Switch SCR branch is changed, is at this time electrical equipment by the first isolation sub switch K1- solid converting switch SCR branch by main power source
Power supply, to realize backup power source being switched fast to main power source.
After backup power source switches to main power source, it is successively closed the first breaker CB1, solid converting switch SCR is disconnected, is disconnected
The first isolation sub switch K1 is opened, load current is made to be transferred to first from the first isolation sub switch K1- solid converting switch SCR branch
Breaker CB1 branch is at this time power supply for electrical equipment again through the first breaker CB1 branch by main power source.
The utility model additionally provides a kind of double power-supply system, including main power source and backup power source, further includes any of the above-described
Kind mixed type double-power supply switching device.
The introduction of double power-supply system provided by the utility model please refers to the implementation of above-mentioned mixed type double-power supply switching device
Example, details are not described herein by the application.
It should also be noted that, in the present specification, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (4)
1. a kind of mixed type double-power supply switching device characterized by comprising
Disconnecting switch in the power supply line of main power source and backup power source is used for the main power source and the backup power source
Output keep apart, so that the main power source is not powered simultaneously with the backup power source；
The first breaker in the first power supply line of the main power source；
The first solid converting switch in the second power supply line of the main power source；
The second breaker in the first power supply line of the backup power source；
The second solid converting switch in the second power supply line of the backup power source；
For the radiator for first solid converting switch and second solid converting switch heat dissipation；The mixed type is double
Power supply change-over device is for when one of power supply normal power supply, making the power supply in the main power source and the backup power source
First power supply line is in connected state；When this switches power supply to another power supply, keep the first power supply line of the power supply disconnected
It opens while is connected to the second power supply line of another power supply, be then connected to the first power supply line of another power supply, second
Power supply line disconnects；
Wherein, first breaker and second breaker be same breaker or first solid converting switch and
Second solid converting switch is same solid converting switch.
2. mixed type double-power supply switching device as described in claim 1, which is characterized in that when first breaker and described
When second breaker is same breaker, the disconnecting switch includes the first isolation sub switch and the second isolation sub switch；Wherein:
The first end that sub switch is isolated with described first in the first end of first solid converting switch connects, common end and institute
State the output end connection of main power source, the first end that sub switch is isolated with described second in the first end of second solid converting switch
Connection, common end connect with the output end of the backup power source, described first be isolated the second end of sub switch respectively with it is described
The second end of second isolation sub switch is connected with the first end of breaker, and the second end of the breaker is solid with described first respectively
The second end of state switching switch is connected with the second end of second solid converting switch, the power supply of common end and electrical equipment
End connection；
Then the mixed type double-power supply switching device is specifically used for making when the main power source is the electrical equipment normal power supply
The first isolation sub switch and breaker are in closed state, and make the second isolation sub switch, the switching of the first solid-state
Switch and the second solid converting switch are in off-state；When the main power source abnormal electrical power supply, disconnect the breaker,
It is simultaneously closed second solid converting switch, then disconnects the first isolation sub switch, the second isolation sub switch is closed
Conjunction, breaker closing, the second solid converting switch disconnect.
3. mixed type double-power supply switching device as described in claim 1, which is characterized in that when first solid converting switch
When with second solid converting switch being same solid converting switch, the disconnecting switch includes the first isolation sub switch and the
Two isolation sub switchs；Wherein:
The first end that sub switch is isolated with described first in the first end of first breaker connects, common end and the main electricity
The output end in source connects, and the first end that sub switch is isolated with described second in the first end of second breaker connects, public
End is connect with the output end of the backup power source, and the second end of the first isolation sub switch is opened with second insulator respectively
The second end of pass is connected with the first end of solid converting switch, and the second end of the solid converting switch is disconnected with described first respectively
The second end of road device is connected with the second end of second breaker, the power end connection of common end and electrical equipment；
Then the mixed type double-power supply switching device is specifically used for making when the main power source is the electrical equipment normal power supply
First breaker and the second isolation sub switch are in closed state, and make the first isolation sub switch, solid-state
Switching switch and the second breaker are in off-state；When the main power source abnormal electrical power supply, keep first breaker disconnected
It opens, while is closed the solid converting switch, then make second breaker closing, solid converting switch disconnection, second
Isolation sub switch disconnects, first insulator closes the switch after main power source restores normal.
4. a kind of double power-supply system, which is characterized in that further include as claim 1-3 is any including main power source and backup power source
Mixed type double-power supply switching device described in.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110940965A (en) * | 2019-11-15 | 2020-03-31 | 上海禾赛光电科技有限公司 | Power supply abnormity monitoring system and method for LIDAR and LIDAR system |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110940965A (en) * | 2019-11-15 | 2020-03-31 | 上海禾赛光电科技有限公司 | Power supply abnormity monitoring system and method for LIDAR and LIDAR system |
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