CN209299129U - A kind of carrier-borne logical ac-dc dual power supply for detecing equipment - Google Patents
A kind of carrier-borne logical ac-dc dual power supply for detecing equipment Download PDFInfo
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- CN209299129U CN209299129U CN201920243558.0U CN201920243558U CN209299129U CN 209299129 U CN209299129 U CN 209299129U CN 201920243558 U CN201920243558 U CN 201920243558U CN 209299129 U CN209299129 U CN 209299129U
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Abstract
The utility model relates to a kind of carrier-borne logical ac-dc dual power supplies for detecing equipment, including power conversion component, power supply to select component；The power conversion component exports DC power supply for converting to external AC power source；The power supply selection component includes the first input end for connecting with the power conversion component, the second input terminal for connecting with external direct current power supply；When first input end accesses the DC power supply of the power conversion component output, the DC power supply of the power supply selection component output first input end access；When the second input terminal accesses DC power supply, and first input end does not access DC power supply, the power supply selection component exports the DC power supply of the second input terminal access.The utility model does not change the requirement in terms of original equipment size, Electro Magnetic Compatibility, convenient for promoting, has practical value and economic value.
Description
Technical field
This utility power technical field, more particularly to a kind of carrier-borne logical ac-dc dual power supply for detecing equipment.
Background technique
28V direct current supply is usually assembled on carrier-borne communication reconnaissance equipment (logical to detect equipment), and carrier-borne upper usually 220V is handed over
Therefore stream power voltage supply in the cabinet that such communication reconnaissance equipment is finally installed, generally requires specially to be equipped with an AC/DC
Power supply as controller switching equipment, differ by the space for occupying 1~3U in cabinet (1U=44.45mm).Carrier-borne cabinet space resources has
Limit, is equipped with special controller switching equipment and wastes very much cabinet space.Meanwhile in communication reconnaissance equipment without in the debugging before cabinet,
Since equipment only has 28V direct current supply, it is also desirable to it is equipped with special power-supply device (typically more heavy) and powers to export 28V,
Be inconvenient to debug use.
Utility model content
In view of above-mentioned analysis, the utility model is intended to provide a kind of carrier-borne logical ac-dc dual power supply for detecing equipment, solution
Certainly existing carrier-borne communication reconnaissance equipment power supply, which exists, supplies single, equipment debugging power supply inconvenience, cabinet space wasting of resources etc.
Problem.
The purpose of this utility model is mainly achieved through the following technical solutions:
A kind of carrier-borne logical ac-dc dual power supply for detecing equipment, including power conversion component, power supply select component；
The power conversion component exports DC power supply for converting to external AC power source；
Power supply selection component includes the first input end for connect with the power conversion component, be used for it is external
Second input terminal of DC power supply connection；
When first input end accesses the DC power supply of the power conversion component output, the power supply selection component output
The DC power supply of first input end access；When the second input terminal access DC power supply, and first input end does not access direct current
When source, the power supply selection component exports the DC power supply of the second input terminal access.
Further, the power supply selection component includes biswitch relay J1, optocoupler N1, resistance R1, R2 and switch three
Pole pipe V1；
The biswitch relay J1 includes normally closed switch K1 and normal open switch K2；
The anode of the first input end is connect with an endpoint of normally closed switch K1；Resistance R1 is connected to the endpoint and light
Between the anode of coupling N1 photophore；
The anode of second input terminal is connect with an endpoint of normal open switch K2；On the one hand the endpoint passes through resistance R2
The collector of optocoupler N1 light-receiving device and the base stage of switching transistor V1 are connected, relay J1 coil and switch three are on the other hand passed through
The collector of pole pipe V1 connects；
Another endpoint of the switch K1 and another endpoint of K2 connect, the output end with power supply selection component
Anode connection；
The emitter of the cathode of optocoupler N1 photophore, the emitter of optocoupler N1 light-receiving device and switching transistor V1 respectively with institute
State the cathode connection of first input end.
Further, the relay J1 is JQX-136MD relay.
Further, the power conversion component includes ac input end mouth, AC/DC changeover switch and direct current output port；
The ac input end mouth, for connecting 220V AC power source；The AC/DC changeover switch, for exchanging 220V
Power supply is converted to 28V DC power supply；
The output port, for 28V DC power supply to be output to the first input end.
Further, the AC/DC changeover switch is PFE1000F-28.
It further, further include the switch S being connected between the end COM of PFE1000F-28 and the end-ON/OFF.
Further, the switch S is additionally attached to the cathode of the power conversion component output port and the power supply selects
Between the cathode for selecting the first input end of component.
Further, further include front-end filtering component, the front-end filtering component be connected to 220V AC power source with
Between the ac input end of PFE1000F-28.
It further, further include display circuit, the display circuit is selected with the power conversion component and power supply respectively
Component connection, for showing the power conversion component exchange access situation, or the direct current of the display power supply selection component
Source exports situation.
Further, the display circuit includes resistance R3, R4, R5, switching transistor V2 and LED light V3；The LED light
V3 is common cathode dual-colored LED lamp；The switching transistor V2 is PNP triode；
Resistance R3 is connected between the end AUX of PFE1000F-28 and the collector of switching transistor V2；Resistance R4 is connected to
Between the anode of the power supply selection component output end and the base stage of switching transistor V2；Resistance R5 is selected in the power supply indirectly
Between a kind of control anode of color of the anode and LED light V3 of component output end, the control sun of another color of LED light V3
The emitter of pole connection switch triode V2；The common cathode of LED light V3 is grounded.
The utility model has the beneficial effect that:
The utility model is powered using AC and DC two ways, preferential to exchange, and is retained direct current supply, is detected no exchange
Direct current is automatically switched to when electricity input, and lamplight pointing is carried out to the access situation of power supply；The utility model does not change original equipment
Requirement in terms of size, Electro Magnetic Compatibility has practical value and economic value convenient for promoting.
Other feature and advantage of the utility model will illustrate in the following description, also, partial from specification
In become apparent, or understood and implementing the utility model.The purpose of this utility model and other advantages can pass through
Structure specifically indicated in the written description, claims, and drawings is achieved and obtained.
Detailed description of the invention
Attached drawing is only used for showing the purpose of specific embodiment, and is not considered as limitations of the present invention, entire
In attached drawing, identical reference symbol indicates identical component.
Fig. 1 is that the DC dual-purpose power supply in the utility model embodiment forms connection schematic diagram.
Specific embodiment
Specifically describe the preferred embodiment of the utility model with reference to the accompanying drawing, wherein attached drawing constitutes the application one
Point, and be used to illustrate the principles of the present invention together with the embodiments of the present invention.
One specific embodiment of the utility model discloses a kind of carrier-borne logical ac-dc dual power supply for detecing equipment, such as
Shown in Fig. 1；Component is selected including power conversion component, power supply；
Wherein, power conversion component exports direct current for carrying out ac-dc conversion to external 220V AC power source
Source；
Power supply selection component includes the first input end for connecting with the power conversion component, is used for and external 28V
Second input terminal of DC power supply connection；
When first input end accesses 28V DC power supply, power supply selects the output first input end access of component output end
28V DC power supply；
When the second input terminal accesses 28V DC power supply, and first input end does not access 28V DC power supply, power supply choosing
Select the 28V DC power supply that component output end exports the access of the second input terminal.
The cathode of first input end, the second input terminal and power supply selection component output end is connected with each other, i.e. common ground connection.
Preferably, power supply selection component includes biswitch relay J1, optocoupler N1, resistance R1, R2 and switching transistor V1；
Biswitch relay J1 includes normally closed switch K1 and normal open switch K2；
The anode of first input end is connect with the endpoint 1 of switch K1；Resistance R1 is connected to the endpoint and optocoupler N1 photophore
Anode between；
The anode of second input terminal is connect with the endpoint 1 of the switch K2；On the one hand the endpoint passes through resistance R2 connection light
On the other hand the collector of coupling N1 light-receiving device and the base stage of switching transistor V1 pass through relay J1 coil and switching transistor V1
Collector connection；
The endpoint 2 of switch K1 is connect with the endpoint 2 of K2, for exporting 28V as the output end of power supply selection component
DC power supply；
The cathode of the photophore of optocoupler N1, the emitter of the light-receiving device of optocoupler N1 are connected with the emitter of switching transistor V1
And it is connect with the cathode of first input end.
When the first input end of power supply selection component has 28V DC supply input, the anode of 28V DC power supply passes through electricity
Resistance R1 is connected to the anode of optocoupler N1 photophore, due to the cathode of the cathode connection 28V DC power supply of optocoupler N1 photophore, is formed
Current path, optocoupler N1 photophore shine, and the light-receiving device of optocoupler N1 is connected, and keep the base stage of switching transistor V1 and transmitting extremely short
It connects, switching transistor V1 is in off state always, and the coil of relay J1 cannot be powered on to form access, and relay J1 is motionless
Make, normally closed switch K1 is normally closed, and the 28V DC power supply of first input end input is exported by normally closed switch K1 from output end；It is normally opened
Switch K2 is normally opened, no matter the second input terminal whether there is or not 28V DC supply input all cannot by switch K2 from output end export.
When the second input terminal accesses 28V DC power supply, and first input end does not access 28V DC power supply, optocoupler N1
Photophore can not form current path, not shine, and the light-receiving device cut-off of optocoupler N1, the base stage and emitter of switching transistor V1 is not
It is shorted；The anode that second input terminal accesses 28V DC power supply is powered on by resistance R2 to switching transistor V1 base stage, three pole of switch
The base stage of pipe V1 forms positive voltage, switching transistor V1 conducting relative to emitter, and the second input terminal accesses 28V DC power supply
Anode accesses the cathode of 28V DC power supply by coil, the switching transistor V1 to the second input terminal of relay J1, forms electric current
Access, relay J1 movement, normally closed switch K1 are disconnected, normal open switch K2 closure, and the second input terminal access 28V DC power supply passes through
Switch K2 is exported from output end.
Preferably, relay J1 is JQX-136MD relay, and it is to have that JQX-136MD, which is small-sized sealing electromagnetic relay,
The power-type sealed relay that transient state inhibits, load capacity reach 40A, have small in size, and load capacity is strong and environmental index is superior
The characteristics of.There are two groups of switches inside it, one group of switch is normally closed, and another group of switch is normally opened, and two groups of switches of relay are a startings
Make, when coil electrode has certain voltage, and cathode is grounded, the actuating of relay.
Specifically, power conversion component includes ac input end mouth, AC/DC changeover switch and direct current output port；
Ac input end mouth, for connecting 220V AC power source；
The AC/DC changeover switch is that PFE1000F-28 is converted to 220V AC power source for carrying out AC-DC conversion
28V DC power supply；
The output port, for the 28V DC power supply after conversion to be output to the first input end.
Preferably, to realize under the external equal electric power thus supplied in AC DC electric source, Alternating Current Power Supply can be stopped, being only used outer
28V DC power supply is connect to be powered；The present embodiment is provided with switch S, on the one hand switch S is connected to PFE1000F-28's
Between the end COM and the end-ON/OFF, when the switch s is closed, PFE1000F-28 just carries out AC-DC conversion, exports 28V direct current
First input end of the source to power supply selection component；When switch S is disconnected, PFE1000F-28 does not work；
On the other hand, switch S is additionally attached to the cathode of power conversion component output port and the power supply selects component
First input end cathode between, when the switch s is closed, the power conversion component exports 28V DC power supply to the electricity
The first input end of source selection component；When switch S is disconnected, the power conversion component output 28V DC power supply cannot be exported
To the first input end of power supply selection component.
That is, power supply selection component can only be powered with external 28V DC power supply after switch K is disconnected.
Preferably, further include front-end filtering component, the front-end filtering component be connected to 220V AC power source with
Between the ac input end of PFE1000F-28, for carrying out the filtering of AC power source.Front-end filtering component may be selected
The front end filter announced in PFE1000F-28 technical documentation or other can play the open filter of power filter, filter
The form of device is not the protection scope of the utility model.
For can be convenient for users to the access situation of observing power supply, the present embodiment further includes display circuit, and the display is electric
Road is for showing the ac-dc dual power supply electric power thus supplied.
Specifically, display circuit includes resistance R3, R4, R5, switching transistor V2 and dual-colored LED lamp V3；The dual-colored LED
Lamp V3 is common cathode dual-colored LED lamp V3, including red, green two kinds of LED light；The switching transistor V2 is PNP triode；
The resistance R3 is connected between the end AUX of PFE1000F-28 and the collector of switching transistor V2；The resistance
R4 is connected between the anode of output end and the base stage of switching transistor V2 of the power supply selection component；The resistance R5 is indirect
It is double-colored between the control anode of the green LED lamp of the anode and dual-colored LED lamp V3 of the output end of power supply selection component
The emitter of the control anode connection switch triode V2 of the red LED lamp of LED light V3；The common cathode of the dual-colored LED lamp V3
Ground connection.
When power conversion component accesses external 220V AC power source, PFE1000F-28 work, the end AUX just has 11V left
Right voltage output；When the output end of power supply selection component does not have the output of 28V DC power supply, the base of PNP switching transistor V2
Extremely low level no current, collector and transmitter are in the conductive state, and the 11V at the end AUX passes through switching transistor V2, red
LED light forms current path, dual-colored LED lamp V3 burn red to ground；When the output end of power supply selection component has 28V direct current
When source exports, by resistance R4, the base stage of triode V2 has electric current, and collector and transmitter are in off state, 28V direct current
Source forms current path, dual-colored LED lamp V3 glow green by resistance R5, green LED lamp to ground.
In conclusion the present embodiment is powered using AC and DC two ways, and it is preferential to exchange, retain direct current supply, detects
No alternating current automatically switches to direct current when inputting, and carries out lamplight pointing to the access situation of power supply；The utility model does not change
Requirement in terms of original equipment size, Electro Magnetic Compatibility has practical value and economic value convenient for promoting.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in
Change or replacement, should be covered within the scope of the utility model.
Claims (10)
1. a kind of carrier-borne logical ac-dc dual power supply for detecing equipment, which is characterized in that including power conversion component, power supply selection group
Part；
The power conversion component exports DC power supply for converting to external AC power source；
The power supply selection component includes the first input end for connecting with the power conversion component, is used for and external direct current
Second input terminal of power supply connection；
When first input end accesses the DC power supply of the power conversion component output, the power supply selection component output first
The DC power supply of input terminal access；When the second input terminal accesses DC power supply, and first input end does not access DC power supply,
The power supply selection component exports the DC power supply of the second input terminal access.
2. ac-dc dual power supply according to claim 1, which is characterized in that the power supply selection component includes biswitch
Relay J1, optocoupler N1, resistance R1, R2 and switching transistor V1；
The biswitch relay J1 includes normally closed switch K1 and normal open switch K2；
The anode of the first input end is connect with an endpoint of normally closed switch K1；Resistance R1 is connected to the endpoint and optocoupler N1
Between the anode of photophore；
The anode of second input terminal is connect with an endpoint of normal open switch K2；On the one hand the endpoint passes through resistance R2 and connects
On the other hand the collector of optocoupler N1 light-receiving device and the base stage of switching transistor V1 pass through relay J1 coil and switching transistor
The collector of V1 connects；
Another endpoint of the switch K1 and another endpoint of K2 connect, the output end anode with power supply selection component
Connection；
The emitter of the cathode of optocoupler N1 photophore, the emitter of optocoupler N1 light-receiving device and switching transistor V1 is respectively with described
The cathode of one input terminal connects.
3. ac-dc dual power supply according to claim 2, which is characterized in that the relay J1 be JQX-136MD after
Electric appliance.
4. ac-dc dual power supply according to claim 1, which is characterized in that the power conversion component includes that exchange is defeated
Inbound port, AC/DC changeover switch and direct current output port；
The ac input end mouth, for connecting 220V AC power source；The AC/DC changeover switch is used for 220V AC power source
Be converted to 28V DC power supply；
The output port, for 28V DC power supply to be output to the first input end.
5. ac-dc dual power supply according to claim 4, which is characterized in that the AC/DC changeover switch is
PFE1000F-28。
6. -5 any ac-dc dual power supply according to claim 1, which is characterized in that further include being connected to
Switch S between the end COM and the end-ON/OFF of PFE1000F-28.
7. ac-dc dual power supply according to claim 6, which is characterized in that the switch S is additionally attached to the power supply
Between the cathode of the first input end of the cathode of conversion assembly output port and power supply selection component.
8. ac-dc dual power supply according to claim 6, which is characterized in that further include front-end filtering component, before described
End filtering unit is connected between 220V AC power source and the ac input end of PFE1000F-28.
9. ac-dc dual power supply according to claim 6, which is characterized in that it further include display circuit, the display electricity
Road is connect with the power conversion component and power supply selection component respectively, for showing the power conversion component exchange access feelings
Condition, or the DC power supply of the display power supply selection component export situation.
10. ac-dc dual power supply according to claim 9, which is characterized in that the display circuit include resistance R3,
R4, R5, switching transistor V2 and LED light V3；The LED light V3 is common cathode dual-colored LED lamp；The switching transistor V2 is
PNP triode；
Resistance R3 is connected between the end AUX of PFE1000F-28 and the collector of switching transistor V2；Resistance R4 is connected to described
Power supply selects between the anode of component output end and the base stage of switching transistor V2；Resistance R5 selects component in the power supply indirectly
Between a kind of control anode of color of the anode and LED light V3 of output end, the control anode of another color of LED light V3 connects
Connect the emitter of switching transistor V2；The common cathode of LED light V3 is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920243558.0U CN209299129U (en) | 2019-02-26 | 2019-02-26 | A kind of carrier-borne logical ac-dc dual power supply for detecing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920243558.0U CN209299129U (en) | 2019-02-26 | 2019-02-26 | A kind of carrier-borne logical ac-dc dual power supply for detecing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209299129U true CN209299129U (en) | 2019-08-23 |
Family
ID=67642957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920243558.0U Active CN209299129U (en) | 2019-02-26 | 2019-02-26 | A kind of carrier-borne logical ac-dc dual power supply for detecing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209299129U (en) |
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2019
- 2019-02-26 CN CN201920243558.0U patent/CN209299129U/en active Active
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