CN209119889U - Automatic switching device and communication power supply - Google Patents
Automatic switching device and communication power supply Download PDFInfo
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- CN209119889U CN209119889U CN201822031702.2U CN201822031702U CN209119889U CN 209119889 U CN209119889 U CN 209119889U CN 201822031702 U CN201822031702 U CN 201822031702U CN 209119889 U CN209119889 U CN 209119889U
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Abstract
Automatic switching device and communication power supply provided by the utility model, are related to communication power supply technical field.Wherein, the device is applied to the communication power supply equipped with rectification unit and battery group; the device includes protection location, the first relay and the second relay; the exchange end of rectification unit is electrically connected with alternating current cable, and the DC terminal of rectification unit is electrically connected with protection location and load respectively by the controlled terminal of the first relay；Battery group is electrically connected by the controlled terminal of the second relay with discharge instrument, and discharge instrument is used to carry out checking discharging test to battery group；Alternating current cable is electrically connected with the control terminal of the control terminal of the first relay and the second relay respectively, setting in this way, when alternating current cable exchanges power loss, the controlled terminal of the first relay and the controlled terminal of the second relay are automatically shut down, thus easily operating status of the switching battery group and rectification unit in communication power supply.
Description
Technical field
The utility model relates to communication power supply technical field, specifically a kind of automatic switching device and communication power supply.
Background technique
" heart " of the communication power supply as communication system of power grids system, the stable operation of communication power supply have great importance.It stores
Battery pack is as one of safety curtain in communication power supply, and when communication power supply can not be normally load supplying, battery group is needed
It quickly to come into operation, be load supplying.However, current battery group comes into operation and is that the efficiency of load supplying needs to be mentioned
It rises.
Utility model content
In view of this, the present invention provides a kind of automatic switching device and communication power supplies.
In a first aspect, the utility model embodiment provides a kind of automatic switching device, it is applied to be equipped with rectification unit and storage
The communication power supply of battery pack, described device include protection location, the first relay and the second relay, and first relay is set
There are control terminal and controlled terminal, second relay is equipped with control terminal and controlled terminal.
The rectification unit is equipped with exchange end and DC terminal, exchange end and the alternating current cable of the rectification unit are electrically connected
It connects, the DC terminal of the rectification unit is electric with the protection location and load respectively by the controlled terminal of first relay
Connection.
The battery group is electrically connected by the controlled terminal of second relay with discharge instrument, and the discharge instrument is used for
Checking discharging test is carried out to the battery group.
The alternating current cable is electric with the control terminal of first relay and the control terminal of second relay respectively
Connection, for controlling the on-off of the on-off of the controlled terminal of first relay and the controlled terminal of first relay,
Wherein, when the alternating current cable exchanges power loss, the controlled terminal of first relay is automatically shut down, is automatically shut down described
The controlled terminal of second relay.
Optionally, in the present embodiment, described device further includes third relay, Alarm Unit and voltage sensor, institute
Third relay is stated equipped with control terminal and controlled terminal.
The voltage sensor is electrically connected with the battery group and the Alarm Unit respectively, and the voltage sensor is used
In will from the voltage transmission that the battery group is got to the Alarm Unit and for the Alarm Unit power.
The Alarm Unit is electrically connected with the controlled terminal of the third relay.
The alternating current cable is electrically connected with the control terminal of the third relay, for controlling the third relay
The on-off of controlled terminal, wherein when the alternating current cable exchanges power loss, being controlled for the third relay is connected automatically
End.
Optionally, in the present embodiment, the Alarm Unit includes buzzer.
The buzzer is electrically connected with the controlled terminal of the third relay.
The output cathode of the voltage sensor is electrically connected with the controlled terminal of the third relay, the voltage sensor
The output negative pole of device is electrically connected with the buzzer, and the voltage sensor is used to lead in the controlled terminal of the third relay
It powers when logical for the buzzer.
Optionally, in the present embodiment, described device further includes the 4th relay, and the 4th relay is equipped with control terminal
And controlled terminal, the Alarm Unit further include the first light emitting diode and the second light emitting diode.
First light emitting diode is electrically connected between the buzzer and the voltage sensor.
One end of the controlled terminal of 4th relay is electrically connected with the output cathode of the voltage sensor, and described
The other end of the controlled terminal of four relays is electrically connected with second light emitting diode.
Second light emitting diode respectively with the controlled terminal of the 4th relay and the voltage sensor
Output negative pole electrical connection.
Optionally, in the present embodiment, the light and second light emitting diode that first light emitting diode is issued
The light issued is different colours.
Optionally, in the present embodiment, the protection location includes first diode, the second diode, third diode
With the 4th diode.
The first diode and second Diode series.
The third diode and the 4th Diode series.
The first diode and second diode after series connection with connect after the third diode and described
4th diodes in parallel.
Second aspect, the utility model embodiment additionally provide a kind of communication power supply, and the communication power supply includes；
Rectification unit；
Battery group；And
Automatic switching device, described device include protection location, the first relay and the second relay, first relay
Device is equipped with control terminal and controlled terminal, and second relay is equipped with control terminal and controlled terminal.
The rectification unit is equipped with exchange end and DC terminal, exchange end and the alternating current cable of the rectification unit are electrically connected
It connects, the DC terminal of the rectification unit is electric with the protection location and load respectively by the controlled terminal of first relay
Connection.
The battery group is electrically connected by the controlled terminal of second relay with discharge instrument, and the discharge instrument is used for
Checking discharging test is carried out to the battery group.
The alternating current cable is electric with the control terminal of first relay and the control terminal of second relay respectively
Connection, for controlling the on-off of the on-off of the controlled terminal of first relay and the controlled terminal of first relay,
Wherein, when the alternating current cable exchanges power loss, the controlled terminal of first relay is automatically shut down, is automatically shut down described
The controlled terminal of second relay.
Optionally, in the present embodiment, described device further includes third relay, Alarm Unit and voltage sensor, institute
Third relay is stated equipped with control terminal and controlled terminal.
The voltage sensor is electrically connected with the battery group and the Alarm Unit respectively, and the voltage sensor is used
In will from the voltage transmission that the battery group is got to the Alarm Unit and for the Alarm Unit power.
The Alarm Unit is electrically connected with the controlled terminal of the third relay.
The alternating current cable is electrically connected with the control terminal of the third relay, for controlling the third relay
The on-off of controlled terminal, wherein when the alternating current cable exchanges power loss, being controlled for the third relay is connected automatically
End.
Optionally, in the present embodiment, the Alarm Unit includes buzzer.
The buzzer is electrically connected with the controlled terminal of the third relay.
The output cathode of the voltage sensor is electrically connected with the controlled terminal of the third relay, the voltage sensor
The output negative pole of device is electrically connected with the buzzer, and the voltage sensor is used to lead in the controlled terminal of the third relay
It powers when logical for the buzzer.
Optionally, in the present embodiment, described device further includes the 4th relay, and the 4th relay is equipped with control terminal
And controlled terminal, the Alarm Unit further include the first light emitting diode and the second light emitting diode.
First light emitting diode is electrically connected between the buzzer and the voltage sensor.
One end of the controlled terminal of 4th relay is electrically connected with the output cathode of the voltage sensor, and described
The other end of the controlled terminal of four relays is electrically connected with second light emitting diode.
Second light emitting diode respectively with the controlled terminal of the 4th relay and the voltage sensor
Output negative pole electrical connection.
Automatic switching device and communication power supply provided by the embodiment of the utility model, by by the exchange end of rectification unit with
The electrical connection of alternating current cable, by the DC terminal of rectification unit by the controlled terminal of the first relay respectively with protection location and bear
Carry electrical connection, battery group is by the controlled terminal of the second relay, and for carrying out checking discharging test to battery group
Discharge instrument electrical connection, and the control terminal by alternating current cable respectively with the control terminal of the first relay and the second relay is electrically connected
It connects, when alternating current cable exchanges power loss, automatically shuts down the controlled terminal of the first relay, and automatically shut down the second relay
Controlled terminal, thus easily operating status in communication power supply of switching battery group and rectification unit, so that battery
Group can rapidly come into operation and be load supplying, improve the power supply reliability of communication power supply.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is a kind of structural block diagram of communication power supply provided by the embodiment of the utility model；
Fig. 2 is the connection schematic diagram of communication power supply provided by the embodiment of the utility model and discharge instrument；
Fig. 3 is a kind of circuit diagram of Alarm Unit provided by the embodiment of the utility model；
Fig. 4 is a kind of circuit diagram of protection location provided by the embodiment of the utility model.
Icon: 100- communication power supply；10- automatic switching device；20- rectification unit；30- protection location；40- battery
Group；50- discharge instrument；60- load.
Specific embodiment
It has been investigated that " heart " of the communication power supply as communication system of power grids system, the stable operation of communication power supply has weight
The meaning wanted.Battery group is as one of safety curtain in communication power supply, when communication power supply can not be normally load supplying,
Battery group needs quickly come into operation, and are load supplying.
In order to guarantee the normal operation of battery group, often need periodically to battery group carry out checking discharging test, one
Check whether the performance of battery group is normal.However, during carrying out checking discharging test to battery group, battery
Group cannot be load supplying in time.If the exchange input of communication power supply is in the mistake for carrying out checking discharging test to battery group
Cheng Fasheng is interrupted, and leading to communication power supply can not be load supplying, also, since battery group is carrying out proof discharge examination
It tests, if desired battery group comes into operation and is load supplying, then battery group is needed quickly to disconnect with checking discharging test
It and is load supplying.If battery group cannot disconnect immediately with checking discharging test and be load supplying, consequent is just
It is protection failure, switch failure, channel interrupt etc., consequence is hardly imaginable.
Through inventor the study found that it is by manually cutting that battery group, which comes into operation, in section communication power supply at present
Change, such switching mode has the risk of higher human operational error, and after switching battery group institute of coming into operation
The overlong time of consumption, cannot corresponding demand in time.
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 a part of the embodiment of the utility model, instead of all the embodiments.Usually retouched in attached drawing here
The component of the utility model embodiment stated and shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.In the utility model
In description, term " first ", " second " etc. are only used for distinguishing description, and should not be understood as only or imply relative importance.
In the description of the present invention, unless otherwise clearly defined and limited, term " setting ", " connected ", " company
Connect " it shall be understood in a broad sense, for example, it may be being fixedly connected, it may be a detachable connection, or be integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, two members can also be can be indirectly connected through an intermediary
Connection inside part.For the ordinary skill in the art, it can understand that above-mentioned term is practical new at this with concrete condition
Concrete meaning in type.
Fig. 1 and Fig. 2 are please referred to, Fig. 1 is a kind of structure of communication power supply 100 provided by the embodiment of the utility model
Block diagram, Fig. 2 are the connection schematic diagram of communication power supply 100 and discharge instrument 50 provided by the embodiment of the utility model.
The utility model embodiment provides a kind of automatic switching device 10, is applied to be equipped with rectification unit 20 and battery
The communication power supply 100 of group 40, described device include protection location 30, the first relay K1 and the second relay K2, and described first
Relay K1 is equipped with control terminal and controlled terminal, and the second relay K2 is equipped with control terminal and controlled terminal.
The rectification unit 20 is equipped with exchange end and DC terminal, the exchange end of the rectification unit 20 and alternating current cable electricity
Connection, the DC terminal of the rectification unit 20 by the controlled terminal of the first relay K1 respectively with the protection location 30
It is electrically connected with load 60.
The battery group 40 is electrically connected by the controlled terminal of the second relay K2 with discharge instrument 50, the electric discharge
Instrument 50 is used to carry out checking discharging test to the battery group 40.
The alternating current cable control with the control terminal of the first relay K1 and the second relay K2 respectively
End electrical connection, for controlling the on-off of the controlled terminal of the first relay K1 and the controlled terminal of the first relay K1
On-off, wherein when the alternating current cable exchange power loss when, automatically shut down the controlled terminal of the first relay K1, from
The controlled terminal of dynamic shutdown the second relay K2.
Setting in this way, so that passing through the second relay K2's when the alternating current cable exchanges power loss
Controlled terminal disconnects rapidly being electrically connected between the discharge instrument 50 and the battery group 40.Also, by described first after
The controlled terminal of electric appliance K1 disconnects rapidly the rectification unit 20 and loads being electrically connected for the 60, protection location 30 with described.
In detail, in the present embodiment, by the controlled terminal of the second relay K2 disconnect the discharge instrument 50 with
Electrical connection between the battery group 40, consumed time can be within 0.03 seconds.
Fig. 3 is please referred to, in the present embodiment, described device further includes third relay K3, Alarm Unit and voltage
Sensor, the third relay K3 are equipped with control terminal and controlled terminal.
The voltage sensor is electrically connected with the battery group 40 and the Alarm Unit respectively, the voltage sensor
For will power from the voltage transmission that the battery group 40 is got to the Alarm Unit and for the Alarm Unit.
The Alarm Unit is electrically connected with the controlled terminal of the third relay K3.
The alternating current cable is electrically connected with the control terminal of the third relay K3, for controlling the third relay
The on-off of the controlled terminal of K3, wherein when the alternating current cable exchanges power loss, be connected the third relay K3's automatically
Controlled terminal.
Optionally, in the present embodiment, the Alarm Unit includes buzzer LS.
The buzzer LS is electrically connected with the controlled terminal of the third relay K3.
The output cathode of the voltage sensor is electrically connected with the controlled terminal of the third relay K3, and the voltage passes
The output negative pole of sensor is electrically connected with the buzzer LS, and the voltage sensor is used in the controlled of the third relay K3
It powers when end processed is connected for the buzzer LS.
When the alternating current cable power loss, the controlled terminal of the third relay K3 is connected automatically, the buzzer
LS is connected with the voltage sensor, and buzzing alarm is issued in the power supply of the voltage sensor.Operation maintenance personnel can as a result,
Buzzing alarm is issued by the buzzer LS and gets the information of the alternating current cable power loss, and then operation maintenance personnel can be with
Carry out corresponding operation.
Optionally, in the present embodiment, described device further includes the 4th relay K4, and the 4th relay K4 is equipped with control
End processed and controlled terminal, the Alarm Unit further include the first Light-emitting diode LED 1 and the second Light-emitting diode LED 2.
First Light-emitting diode LED 1 is electrically connected between the buzzer LS and the voltage sensor.
One end of the controlled terminal of the 4th relay K4 is electrically connected with the output cathode of the voltage sensor, described
The other end of the controlled terminal of 4th relay K4 is electrically connected with second Light-emitting diode LED 2.
Second Light-emitting diode LED 2 is passed with the controlled terminal of the 4th relay K4 and the voltage respectively
The output negative pole of sensor is electrically connected.
Optionally, in the present embodiment, the light that first Light-emitting diode LED 1 is issued and described second luminous two
The light that pole pipe LED2 is issued is different colours.
In detail, the light that first Light-emitting diode LED 1 is issued can be but not limited to feux rouges, when the exchange
When cable power loss, first Light-emitting diode LED 1 issues feux rouges.Operation maintenance personnel can pass through described first luminous two as a result,
The feux rouges that pole pipe LED1 is issued, it is known that the alternating current cable power loss, to carry out corresponding operation.
In detail, the color for the light that second Light-emitting diode LED 2 is issued can be but not limited to green, work as institute
When stating alternating current cable normal power supply, the controlled terminal of the 4th relay K4 is closed, second Light-emitting diode LED 2
Issue green light.The green light that operation maintenance personnel can be issued by second Light-emitting diode LED 2 as a result, it is known that the ac cable
Line is in normal operation.
Optionally, in the present embodiment, described device further includes third light emitting diode, the 4th light emitting diode, the 5th
Light emitting diode and the 6th light emitting diode.
The third light emitting diode be electrically connected to the rectification unit 20 DC terminal and the first relay K1 it
Between, when having electric current between the DC terminal and the first relay K1 of the rectification unit 20, the third light emitting diode
It shines.
4th light emitting diode is electrically connected between the protection location 30 and the third light emitting diode, in institute
It states when having electric current between protection location 30 and the battery group 40, the 4th lumination of light emitting diode.
5th light emitting diode is electrically connected between the first relay K1 and the load 60, described first
When having electric current between relay K1 and the load 60, the 5th lumination of light emitting diode.
6th light emitting diode is electrically connected between the battery group 40 and the discharge instrument 50, in the electric power storage
When having electric current between pond group 40 and the discharge instrument 50, the 6th lumination of light emitting diode.
Pass through the third light emitting diode, the 4th light emitting diode, the 5th light emitting diode and described
Six light emitting diodes know it is no shine, can intuitively know whether branch at each light emitting diode is connected.
Fig. 4 is please referred to, in the present embodiment, the protection location 30 includes first diode D1, the second diode
D2, third diode D3 and the 4th diode D4.
The first diode D1 and the second diode D2 series connection.
The third diode D3 and the 4th diode D4 series connection.
The first diode D1 and the second diode D2 after series connection with connect after the third diode D3
It is in parallel with the 4th diode D4.
In detail, it by the way that the protection location 30 is arranged, may be implemented: there is no power loss, described in the alternating current cable
When 100 normal power supply of communication power supply, the battery group 40 is separated with the communication power supply 100 by the protection location 30,
Avoid with regard to carry out checking discharging test battery group 40 because being connected to the communication power supply 100, and put
It is charged and being connected to communication power supply 100 while electric test.So that the operation of the battery group 40
It obtains safer.
Further, the utility model embodiment additionally provides a kind of communication power supply 100, and the communication power supply 100 includes；
Rectification unit 20；
Battery group 40；And
Automatic switching device 10, described device include protection location 30, the first relay K1 and the second relay K2, described
First relay K1 is equipped with control terminal and controlled terminal, and the second relay K2 is equipped with control terminal and controlled terminal.
The rectification unit 20 is equipped with exchange end and DC terminal, the exchange end of the rectification unit 20 and alternating current cable electricity
Connection, the DC terminal of the rectification unit 20 by the controlled terminal of the first relay K1 respectively with the protection location 30
It is electrically connected with load 60.
The battery group 40 is electrically connected by the controlled terminal of the second relay K2 with discharge instrument 50, the electric discharge
Instrument 50 is used to carry out checking discharging test to the battery group 40.
The alternating current cable control with the control terminal of the first relay K1 and the second relay K2 respectively
End electrical connection, for controlling the on-off of the controlled terminal of the first relay K1 and the controlled terminal of the first relay K1
On-off, wherein when the alternating current cable exchange power loss when, automatically shut down the controlled terminal of the first relay K1, from
The controlled terminal of dynamic shutdown the second relay K2.
Optionally, in the present embodiment, described device further includes third relay K3, Alarm Unit and voltage sensor,
The third relay K3 is equipped with control terminal and controlled terminal.
The voltage sensor is electrically connected with the battery group 40 and the Alarm Unit respectively, the voltage sensor
For will power from the voltage transmission that the battery group 40 is got to the Alarm Unit and for the Alarm Unit.
The Alarm Unit is electrically connected with the controlled terminal of the third relay K3.
The alternating current cable is electrically connected with the control terminal of the third relay K3, for controlling the third relay
The on-off of the controlled terminal of K3, wherein when the alternating current cable exchanges power loss, be connected the third relay K3's automatically
Controlled terminal.
Optionally, in the present embodiment, the Alarm Unit includes buzzer LS.
The buzzer LS is electrically connected with the controlled terminal of the third relay K3.
The output cathode of the voltage sensor is electrically connected with the controlled terminal of the third relay K3, and the voltage passes
The output negative pole of sensor is electrically connected with the buzzer LS, and the voltage sensor is used in the controlled of the third relay K3
It powers when end processed is connected for the buzzer LS.
Optionally, in the present embodiment, described device further includes the 4th relay K4, and the 4th relay K4 is equipped with control
End processed and controlled terminal, the Alarm Unit further include the first Light-emitting diode LED 1 and the second Light-emitting diode LED 2.
First Light-emitting diode LED 1 is electrically connected between the buzzer LS and the voltage sensor.
One end of the controlled terminal of the 4th relay K4 is electrically connected with the output cathode of the voltage sensor, described
The other end of the controlled terminal of 4th relay K4 is electrically connected with second Light-emitting diode LED 2.
Second Light-emitting diode LED 2 is passed with the controlled terminal of the 4th relay K4 and the voltage respectively
The output negative pole of sensor is electrically connected.
Automatic switching device 10 and communication power supply 100 provided by the embodiment of the utility model, by by rectification unit 20
Exchange end is electrically connected with alternating current cable, by the DC terminal of rectification unit 20 by the controlled terminal of the first relay K1 respectively with
60 electrical connection of protection location 30 and load, battery group 40 is by the controlled terminal of the second relay K2, and for battery
Group 40 carries out checking discharging test discharge instruments 50 and is electrically connected, and by the alternating current cable control terminal with the first relay K1 respectively
It is electrically connected with the control terminal of the second relay K2, when alternating current cable exchanges power loss, automatically shuts down the quilt of the first relay K1
Control terminal, and the controlled terminal of the second relay K2 is automatically shut down, to easily switch battery group 40 and rectification unit
20 operating status in communication power supply 100 enables battery group 40 rapidly to come into operation and power for load 60,
Improve the power supply reliability of communication power supply 100.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Each functional module in each embodiment of the utility model can integrate one independent part of formation together,
It is also possible to modules individualism, an independent part can also be integrated to form with two or more modules.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
Its property includes, so that the process, method, article or equipment for including a series of elements not only includes those elements, and
And further include the other elements being not explicitly listed, or further include for this process, method, article or equipment institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including institute
State in the process, method, article or equipment of element that there is also other identical elements.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
Claims (10)
1. a kind of automatic switching device, which is characterized in that described applied to the communication power supply for being equipped with rectification unit and battery group
Device includes protection location, the first relay and the second relay, and first relay is equipped with control terminal and controlled terminal, institute
The second relay is stated equipped with control terminal and controlled terminal；
The rectification unit is equipped with exchange end and DC terminal, the exchange end of the rectification unit are electrically connected with alternating current cable, institute
The DC terminal for stating rectification unit is electrically connected with the protection location and load respectively by the controlled terminal of first relay；
The battery group is electrically connected by the controlled terminal of second relay with discharge instrument, and the discharge instrument is used for institute
It states battery group and carries out checking discharging test；
The alternating current cable is electrically connected with the control terminal of the control terminal of first relay and second relay respectively,
For controlling the on-off of the on-off of the controlled terminal of first relay and the controlled terminal of first relay, wherein
When the alternating current cable exchanges power loss, the controlled terminal of first relay is automatically shut down, automatically shuts down described second
The controlled terminal of relay.
2. automatic switching device according to claim 1, which is characterized in that described device further includes third relay, accuses
Alert unit and voltage sensor, the third relay are equipped with control terminal and controlled terminal；
The voltage sensor is electrically connected with the battery group and the Alarm Unit respectively, and the voltage sensor is used for will
It powers from the voltage transmission that the battery group is got to the Alarm Unit and for the Alarm Unit；
The Alarm Unit is electrically connected with the controlled terminal of the third relay；
The alternating current cable is electrically connected with the control terminal of the third relay, for controlling the controlled of the third relay
The on-off at end processed, wherein when the alternating current cable exchanges power loss, the controlled terminal of the third relay is connected automatically.
3. automatic switching device according to claim 2, which is characterized in that the Alarm Unit includes buzzer；
The buzzer is electrically connected with the controlled terminal of the third relay；
The output cathode of the voltage sensor is electrically connected with the controlled terminal of the third relay, the voltage sensor
Output negative pole is electrically connected with the buzzer, and the voltage sensor is used in the controlled terminal conducting of the third relay
For buzzer power supply.
4. automatic switching device according to claim 3, which is characterized in that described device further includes the 4th relay, institute
The 4th relay is stated equipped with control terminal and controlled terminal, the Alarm Unit further includes the first light emitting diode and second luminous two
Pole pipe；
First light emitting diode is electrically connected between the buzzer and the voltage sensor；
One end of the controlled terminal of 4th relay is electrically connected with the output cathode of the voltage sensor, the described 4th after
The other end of the controlled terminal of electric appliance is electrically connected with second light emitting diode；
The output with the controlled terminal and the voltage sensor of the 4th relay respectively of second light emitting diode
Cathode electrical connection.
5. automatic switching device according to claim 4, which is characterized in that the light that first light emitting diode is issued
It is different colours with the light that second light emitting diode is issued.
6. automatic switching device according to claim 1, which is characterized in that the protection location include first diode,
Second diode, third diode and the 4th diode；
The first diode and second Diode series；
The third diode and the 4th Diode series；
The first diode and second diode after series connection with connect after the third diode and the described 4th
Diodes in parallel.
7. a kind of communication power supply, which is characterized in that the communication power supply includes；
Rectification unit；
Battery group；And
Automatic switching device, described device include protection location, the first relay and the second relay, and first relay is set
There are control terminal and controlled terminal, second relay is equipped with control terminal and controlled terminal；
The rectification unit is equipped with exchange end and DC terminal, the exchange end of the rectification unit are electrically connected with alternating current cable, institute
The DC terminal for stating rectification unit is electrically connected with the protection location and load respectively by the controlled terminal of first relay；
The battery group is electrically connected by the controlled terminal of second relay with discharge instrument, and the discharge instrument is used for institute
It states battery group and carries out checking discharging test；
The alternating current cable is electrically connected with the control terminal of the control terminal of first relay and second relay respectively,
For controlling the on-off of the on-off of the controlled terminal of first relay and the controlled terminal of first relay, wherein
When the alternating current cable exchanges power loss, the controlled terminal of first relay is automatically shut down, automatically shuts down described second
The controlled terminal of relay.
8. communication power supply according to claim 7, which is characterized in that described device further includes third relay, alarm list
Member and voltage sensor, the third relay are equipped with control terminal and controlled terminal；
The voltage sensor is electrically connected with the battery group and the Alarm Unit respectively, and the voltage sensor is used for will
It powers from the voltage transmission that the battery group is got to the Alarm Unit and for the Alarm Unit；
The Alarm Unit is electrically connected with the controlled terminal of the third relay；
The alternating current cable is electrically connected with the control terminal of the third relay, for controlling the controlled of the third relay
The on-off at end processed, wherein when the alternating current cable exchanges power loss, the controlled terminal of the third relay is connected automatically.
9. communication power supply according to claim 8, which is characterized in that the Alarm Unit includes buzzer；
The buzzer is electrically connected with the controlled terminal of the third relay；
The output cathode of the voltage sensor is electrically connected with the controlled terminal of the third relay, the voltage sensor
Output negative pole is electrically connected with the buzzer, and the voltage sensor is used in the controlled terminal conducting of the third relay
For buzzer power supply.
10. communication power supply according to claim 9, which is characterized in that described device further includes the 4th relay, and described
Four relays are equipped with control terminal and controlled terminal, and the Alarm Unit further includes the first light emitting diode and the second light-emitting diodes
Pipe；
First light emitting diode is electrically connected between the buzzer and the voltage sensor；
One end of the controlled terminal of 4th relay is electrically connected with the output cathode of the voltage sensor, the described 4th after
The other end of the controlled terminal of electric appliance is electrically connected with second light emitting diode；
The output with the controlled terminal and the voltage sensor of the 4th relay respectively of second light emitting diode
Cathode electrical connection.
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| CN201822031702.2U CN209119889U (en) | 2018-12-05 | 2018-12-05 | Automatic switching device and communication power supply |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109450073A (en) * | 2018-12-05 | 2019-03-08 | 云南电网有限责任公司曲靖供电局 | Automatic switching device and communication power supply |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109450073A (en) * | 2018-12-05 | 2019-03-08 | 云南电网有限责任公司曲靖供电局 | Automatic switching device and communication power supply |
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