CN207625438U - AC/DC universal communication power supply conversion module - Google Patents
AC/DC universal communication power supply conversion module Download PDFInfo
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- CN207625438U CN207625438U CN201721862706.4U CN201721862706U CN207625438U CN 207625438 U CN207625438 U CN 207625438U CN 201721862706 U CN201721862706 U CN 201721862706U CN 207625438 U CN207625438 U CN 207625438U
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- 238000004891 communication Methods 0.000 title claims abstract description 34
- 230000005611 electricity Effects 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 description 5
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- 230000009286 beneficial effect Effects 0.000 description 2
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- 230000004308 accommodation Effects 0.000 description 1
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- 239000003990 capacitor Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
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Abstract
The utility model discloses a kind of AC/DC universal communication power supply conversion modules comprising exchange input interface, direct current input interface, DC output interface, the first inverter, handover module, input rectifying filter circuit and DC to DC converter；Exchange input interface is connect with AC power, and direct current input interface is connect with DC power supply；DC output interface is connected with load, and the voltage effective value of AC power is equal with the voltage value of DC power supply；First inverter is connect with direct current input interface, for direct current to be transformed into alternating current；Exchange input interface and direct current input interface are alternatively connect by handover module with the input terminal of input rectifying filter circuit；The input terminal of DC to DC converter is connect with the output end of input rectifying filter circuit, and the output end of DC to DC converter is connect with DC output interface.The utility model Pass through above-mentioned technical proposal reduces maintenance cost, less maintenance workload.
Description
Technical field
The utility model is related to field of power supplies, more particularly to a kind of AC/DC universal communication power supply conversion module.
Background technology
In the power system, small program-control exchanger, access net, transmission device, mobile communication, satellite communication are often used
The communication equipments such as earth station, microwave communication.These communication equipments are worked normally, and it is it mainly to rely on power supply module for communication
The power supply of offer.Due to the high-precision of communication equipment, high data network transmission rate, so to the voltage matter of power supply module for communication output
Amount requires very high, and the daily maintenance of power supply module for communication is also just most important.But in actual operation, it is contemplated that power grid is transported
The row particularity of itself, very high to the maintenance cost of power supply module for communication, it is the standby of its conversion module that wherein accounting weight is maximum
Product spare part.
In the prior art, it is converted equipped with separate AC/DC conversion modules and DC/DC generally in power supply module for communication
Module, this two sets of conversion modules realize the direct current that the 220V alternating currents of input and 220V direct currents are converted to -48V respectively.
On the one hand this separate conversion module, on the one hand standard disunity in an installation need a large amount of spare part, and O＆M at
This height, maintenance workload are big.
Utility model content
In order to solve problems in the prior art, the utility model embodiment provides a kind of AC/DC universal communication power supply turn
Change the mold block comprising：Exchange input interface, direct current input interface, DC output interface, the first inverter, handover module, input
Current rectifying and wave filtering circuit and DC to DC converter；The exchange input interface is connect with AC power, and the direct current input connects
Mouth is connect with DC power supply；The DC output interface is connected with load, the voltage effective value of the AC power with it is described straight
The voltage value in galvanic electricity source is equal；First inverter is connect with the direct current input interface, is struck a bargain for direct current to be changed
Galvanic electricity；The handover module alternatively filters the exchange input interface and the direct current input interface with the input rectifying
The input terminal of wave circuit connects；The output end for exchanging the input terminal and the input rectifying filter circuit that turn DC converter
Connection, the output end of the DC to DC converter are connect with the DC output interface.
In AC/DC universal communication power supply conversion module as described above, it is preferable that the voltage of the AC power is effective
Value is 220V；First inverter is used to the direct current of 220V being transformed into the alternating current of voltage effective value 220V.
In AC/DC universal power conversion module as described above, which is characterized in that AC/DC universal communication power supply is converted
Module further includes：Exchange input filter circuit, it is described exchange input filter circuit first input end with it is described exchange input connect
Second input terminal of mouth connection, the exchange input filter circuit is connect with the output end of first inverter, the exchange
The output end of input filter circuit is connect with the input terminal of the input rectifying filter circuit.
In AC/DC universal communication power supply conversion module as described above, it is preferable that the handover module includes two
Air-break, an air-break be connected to the exchange input interface with it is described exchange input filter circuit it
Between, another described air-break is connected between the direct current input interface and first inverter.
In AC/DC universal power conversion module as described above, it is preferable that the DC to DC converter includes：
Second inverter, output rectifier and filter and control circuit；The input terminal of second inverter is filtered with the input rectifying
The output end of wave circuit connects；The output end of the output rectifier and filter is connect with the DC output interface；The control
Circuit processed is connect with the command end of the output end of the output rectifier and filter and second inverter, for according to sampling
Value and preset value, control second inverter, so that the electricity of the output end output of the output rectifier and filter
Pressure is consistent with the preset value.
In AC/DC universal power conversion module as described above, it is preferable that the DC to DC converter also wraps
It includes：Secondary filter circuit；The input terminal of the secondary filter circuit is connect with the output end of the output rectifier and filter, institute
The output end for stating secondary filter circuit is connect with the DC output interface；Accordingly, the control circuit and the secondary filter
The output end of wave circuit connects.
In AC/DC universal power conversion module as described above, it is preferable that the control circuit by LAN interface or
RS485 interfaces or RS232 interface are connect with host computer, to receive the preset value.
In AC/DC universal power conversion module as described above, it is preferable that the AC/DC universal power supply modulus of conversion
Block further includes：Air-break, the air-break are connected between the DC output interface and the load.
What the utility model was brought has the beneficial effect that：
By the way that the first inverter, handover module, input rectifying filter circuit and DC to DC converter is arranged, using one
A module, which can be realized, to be transformed into direct current by alternating current or direct current is transformed into direct current, and spare unit and spare part are greatly reduced
Quantity, reduce O＆M cost, reduce maintenance work, improve safety in production coefficient, there is high production practical value.
Description of the drawings
Fig. 1 is that a kind of circuit structure for AC/DC universal communication power supply conversion module that the utility model embodiment provides is former
Reason figure；
Fig. 2 is a kind of AC/DC universal communication power supply conversion module that the utility model embodiment provides (containing shell)
Front view；
After Fig. 3 is a kind of AC/DC universal communication power supply conversion module (contain shell) that the utility model embodiment provides
View；
Wherein symbol description is as follows in figure：
1- input rectifyings filter circuit, the first inverters of 2-, 3- DC to DC converter, the second inverters of 31-, 32-
Output rectifier and filter, 33- grade filter circuit, 34- control circuits, 4- exchanges input filter circuit, the first air of 51- are disconnected
Road device, the second air-breaks of 52-, 53- thirds air-break, 61-RS485 interfaces, 62-LAN interfaces, 7- display screens, 81-
The anode of DC output interface, the cathode of 82- DC output interfaces, 91- exchanges input interface, 92- direct current input interfaces.
Specific implementation mode
It is new to this practicality below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type embodiment is described in further detail.
Referring to Fig. 1, the utility model provides a kind of AC/DC universal communication power supply conversion module comprising：Alternating current-direct current
All purpose communication power conversion module includes：Exchange input interface, DC output interface, the first inverter, is cut direct current input interface
Change the mold block, input rectifying filter circuit and DC to DC converter.
Exchange input interface 91 is connect with AC power, for receiving the alternating current for coming from AC power.Direct current inputs
Interface 92 is connect with DC power supply, for receiving the direct current for coming from DC power supply.DC output interface is connected with load, is used
It is exported to load in by the output voltage of the AC/DC universal communication power supply conversion module, specifically, DC output interface is just
Pole 81 and cathode 82 are connected with load respectively.It should be noted that the voltage effective value of AC power and the voltage of DC power supply
Be worth it is equal, if AC power voltage effective value be 220V (i.e. 220V alternating currents), then the voltage value of DC power supply also be 220V
(i.e. 220V direct currents).The voltage value of DC power supply is higher than the output voltage values of the AC/DC universal communication power supply conversion module.
The voltage of DC output interface output can be 48V, in other examples, voltage effective value, the direct current of AC power
The voltage value in source, the voltage of DC output interface output can also be other values, and the present embodiment is to this without limiting.
First inverter 2 is used to the direct current inputted by direct current input interface being transformed into alternating current, input terminal with it is straight
It flows input interface 92 to connect, the voltage effective value of the alternating current is equal with the voltage effective value of AC power, such as by 220V direct currents
Electricity is transformed into 220V alternating currents.Handover module alternatively will exchange input interface 91 and direct current input interface 92 and input rectifying filter
The input terminal of wave circuit 1 connects.Input rectifying filter circuit 1 is used to AC rectification be smooth direct current, for direct current
Turn DC converter transformation.DC to DC converter 3 is used to the direct current that input rectifying filter circuit 1 exports being transformed into symbol
The direct current of preset requirement is closed, i.e. the voltage of the direct current is preset value, the output of input terminal and input rectifying filter circuit 1
End connection, output end are connect with DC output interface.
The utility model embodiment is by being arranged the first inverter 2, handover module, input rectifying filter circuit 1 and direct current
Turn DC converter 3, can be realized using a module and alternating current is transformed into direct current or direct current is transformed into direct current,
The quantity of spare unit and spare part is greatly reduced, O＆M cost is reduced, reduces maintenance work, improve safety in production coefficient, have
High production practical value.
In order to which one side filters the clutters such as spike in public electric wire net, good alternating current is provided to this module, it is another
Aspect prevents the noises such as the spike of this module generation from feeding back in public electric wire net, this module further includes：Exchange input filter circuit
4, first input end is connect with exchange input interface 91, and the second input terminal is connect with the output end of the first inverter 2, output end
It is connect with the input terminal of input rectifying filter circuit 1.
Handover module includes：Two air-breaks are divided into the first air-break 51 and the second air-break 52.The
Between one air-break 51 is connected to exchange input interface 91 and exchanges input filter circuit 4, the connection of the second air-break
Between direct current input interface and the first inverter.Air-break plays the role of overload, short-circuit protection to AC and DC power supply.
In practical application, it is first closed the first air-break 51, opens the second air-break 52, to which AC power is accessed this mould
In block, if there is municipal power failure, then it is closed the second air-break 52, opens the first air-break 51, thus by direct current
In this module of plant-grid connection.Behind external city power recovery, alternating current is accessed in this module again.
Specifically, DC to DC converter includes：Second inverter 31, output rectifier and filter 32 and control circuit
34.Second inverter 31 is used to the direct current that input rectifying filter circuit 1 exports becoming alternating current, which is preferably height
Frequency alternating current is so conducive to use to be worth smaller capacitance, inductor filter, while being also beneficial to improve dynamic responding speed.Second is inverse
The input terminal for becoming device 31 is connect with the output end of input rectifying filter circuit 1.Output rectifier and filter 32 is used for inverse to second
Become the alternating current that device 31 exports and carry out rectifying and wave-filtering, to provide reliable and stable low-voltage dc power supply, output end is defeated with direct current
Outgoing interface connects.Control circuit is used to sample according to from the output end of output rectifier and filter 32, through (benchmark is electric with preset value
The voltage in source) it is compared, the second inverter 31 of control is then removed, changes its pulsewidth or frequency, to control filter capacitor
The charge and discharge time, the DC voltage for being finally reached output is preset value, and exports stable purpose, i.e., control circuit 34 is used for root
According to sampled value (output end for coming from output rectifier and filter) and preset value, the second inverter 31 is controlled, so that
The voltage of the output end output of output rectifier and filter 32 is consistent with preset value.Control circuit 34 and output rectifier and filter
The command end of 32 output end and the second inverter 31 connects.
In order to play inhibiting effect to high-frequency cacophony, the high-frequency cacophony peak-to-peak value of the DC voltage of output is made to drop to
200mV is hereinafter, DC to DC converter 3 further includes：Secondary filter circuit 33.The input terminal of secondary filter circuit 33 and output
The output end of current rectifying and wave filtering circuit 32 connects, and the output end of secondary filter circuit 33 is connect with DC output interface；Accordingly, it controls
Circuit 34 processed is connect with the output end of secondary filter circuit 33.
Instruction (i.e. preset value) is sent to control circuit 34 for the ease of host computer, control circuit 34 passes through LAN interface 62
Or RS485 interfaces 61 or RS232 interface are connect with host computer, to receive preset value.In practical application, it is preferred to use LAN interface
62, remote-controlled operation so may be implemented.For the ease of monitoring, AC/DC universal power conversion module further includes：Display screen 7,
Show the voltage value of preset value and DC output interface output, preferably LCD display.
AC/DC universal power conversion module further includes：Air-break, the air-break (or third air break
Device 53) it is connected between DC output interface and load.The third air-break 53 can to this module export electric current and
User load plays the role of disjunction control and provides overload, short-circuit protection.
Referring to Fig. 2~3, in use, the first inverter 2, input rectifying filter circuit 1 and DC to DC converter 3
It is placed in the accommodation space of shell formation, the surface of shell is provided with exchange input interface 91, direct current input interface 92 and straight
Flow output interface and the first air-break 51, the second air-break 52 and third air-break 53.
In conclusion this is by being arranged the first inverter 2, handover module, input rectifying filter circuit 1 and DC to DC
Converter 3 can be realized using a module and alternating current is transformed into direct current or direct current is transformed into direct current, subtracts significantly
The quantity of spare unit and spare part is lacked, has reduced O＆M cost, reduce maintenance work, improve safety in production coefficient, have high
Produce practical value.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (8)
1. a kind of AC/DC universal communication power supply conversion module, which is characterized in that the AC/DC universal communication power supply modulus of conversion
Block includes：Exchange input interface, direct current input interface, DC output interface, the first inverter, handover module, input rectifying filter
Wave circuit and DC to DC converter；
The exchange input interface is connect with AC power, and the direct current input interface is connect with DC power supply；The direct current is defeated
Outgoing interface is connected with load, and the voltage effective value of the AC power is equal with the voltage value of the DC power supply；
First inverter is connect with the direct current input interface, for direct current to be transformed into alternating current；
The handover module alternatively filters the exchange input interface and the direct current input interface with the input rectifying
The input terminal of circuit connects；
The input terminal of the DC to DC converter is connect with the output end of the input rectifying filter circuit, and the direct current turns
The output end of DC converter is connect with the DC output interface.
2. AC/DC universal communication power supply conversion module according to claim 1, which is characterized in that the AC power
Voltage effective value is 220V；First inverter is used to the direct current of 220V being transformed into the exchange of voltage effective value 220V
Electricity.
3. AC/DC universal communication power supply conversion module according to claim 1, which is characterized in that AC/DC universal communicates
Power conversion module further includes：Exchange input filter circuit, the first input end of the exchange input filter circuit and the friendship
Input interface connection is flowed, the second input terminal of the exchange input filter circuit is connect with the output end of first inverter,
The output end of the exchange input filter circuit is connect with the input terminal of the input rectifying filter circuit.
4. AC/DC universal communication power supply conversion module according to claim 3, which is characterized in that the handover module packet
Two air-breaks are included, one of them described air-break is connected to the exchange input interface and exchanges input filter with described
Between wave circuit, another described air-break is connected between the direct current input interface and first inverter.
5. AC/DC universal communication power supply conversion module according to claim 1, which is characterized in that the DC to DC
Converter includes：Second inverter, output rectifier and filter and control circuit；
The input terminal of second inverter is connect with the output end of the input rectifying filter circuit；
The output end of the output rectifier and filter is connect with the DC output interface；
The control circuit is connect with the command end of the output end of the output rectifier and filter and second inverter, is used
According to sampled value and preset value, second inverter is controlled, so that the output of the output rectifier and filter
Hold the voltage of output consistent with the preset value.
6. AC/DC universal communication power supply conversion module according to claim 5, which is characterized in that the DC to DC
Converter further includes：Secondary filter circuit；
The input terminal of the secondary filter circuit is connect with the output end of the output rectifier and filter, the secondary filtered electrical
The output end on road is connect with the DC output interface；
Accordingly, the control circuit is connect with the output end of the secondary filter circuit.
7. AC/DC universal communication power supply conversion module according to claim 5, which is characterized in that the control circuit is logical
It crosses LAN interface or RS485 interfaces or RS232 interface is connect with host computer, to receive the preset value.
8. AC/DC universal communication power supply conversion module according to claim 1, which is characterized in that the AC/DC universal
Power conversion module further includes：Air-break, the air-break are connected to the DC output interface and the load
Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721862706.4U CN207625438U (en) | 2017-12-27 | 2017-12-27 | AC/DC universal communication power supply conversion module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721862706.4U CN207625438U (en) | 2017-12-27 | 2017-12-27 | AC/DC universal communication power supply conversion module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207625438U true CN207625438U (en) | 2018-07-17 |
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ID=62830264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721862706.4U Expired - Fee Related CN207625438U (en) | 2017-12-27 | 2017-12-27 | AC/DC universal communication power supply conversion module |
Country Status (1)
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| CN (1) | CN207625438U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117595635A (en) * | 2023-11-24 | 2024-02-23 | 深圳市拓海通用电气有限公司 | Power inverter assembly and control method thereof |
-
2017
- 2017-12-27 CN CN201721862706.4U patent/CN207625438U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117595635A (en) * | 2023-11-24 | 2024-02-23 | 深圳市拓海通用电气有限公司 | Power inverter assembly and control method thereof |
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Granted publication date: 20180717 |
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| CF01 | Termination of patent right due to non-payment of annual fee |