CN215009745U - Multi-channel input communication power supply circuit - Google Patents

Multi-channel input communication power supply circuit Download PDF

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Publication number
CN215009745U
CN215009745U CN202121418138.5U CN202121418138U CN215009745U CN 215009745 U CN215009745 U CN 215009745U CN 202121418138 U CN202121418138 U CN 202121418138U CN 215009745 U CN215009745 U CN 215009745U
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power
power supply
load
logic board
diode
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CN202121418138.5U
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柳雄文
梁晓俊
林子钊
石裕昆
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Vertiv Tech Co Ltd
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Vertiv Tech Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/248—UPS systems or standby or emergency generators

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Abstract

A multi-input communication power circuit comprises a first power branch, a second power branch and a control module, wherein the control module comprises a single monitoring unit, a first power-down logic board and a second power-down logic board, the detection end of the monitoring unit is respectively connected with the detection points on the first power branch and the second power branch to receive detection signals and generate switch control signals for controlling the switch modules of the first power branch and the second power branch based on the detection signals, and the monitoring unit is electrically connected with the first power-down logic board and the second power-down logic board to send part of the switch control signals to the first power-down logic board and the second power-down logic board; the monitoring unit, the first power down logic board and the second power down logic board control the corresponding switch module based on the switch control signal. Therefore, only one monitoring unit is matched with the lower electric logic board to complete monitoring and management, and the circuit is small in size and low in cost.

Description

Multi-channel input communication power supply circuit
Technical Field
The utility model relates to a communication field, more specifically say, relate to a multichannel input communication power supply circuit.
Background
The communication power supply typically provides-48V operating power for the communication device. In general, two-48V working power supplies are adopted to respectively supply power to different communication devices. In order to ensure the normal operation of the power circuit, two monitoring units are usually required to monitor and manage the power circuit. The monitoring unit is bulky, costly and complicated in connection, resulting in a complex and costly structure of the entire power circuit.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide a small, simple structure and with low costs multiple input communication power supply circuit.
The utility model provides a technical scheme that its technical problem adopted is: the control module comprises a single monitoring unit, a first power branch circuit and a second power branch circuit, wherein the detection end of the monitoring unit is respectively connected with detection points on the first power branch circuit and the second power branch circuit so as to receive detection signals and generate switch control signals for controlling switch modules of the first power branch circuit and the second power branch circuit based on the detection signals, and the monitoring unit is electrically connected with the first power branch circuit and the second power branch circuit so as to send part of the switch control signals to the first power branch circuit and the second power branch circuit; the monitoring unit, the first power down logic board and the second power down logic board control the corresponding switch module based on the switch control signal.
The multiple input communication power supply circuit in, first power branch road includes first input switch module, first load switch module and first load output positive pole, first input switch module including connect first working power supply with first load switch module's first contactor and connect first stand-by power supply with first load switch module's second contactor, the control end of first contactor is connected the monitor cell, the control end of second contactor is connected the logical board that makes electricity under the second, the positive connection of first load output the output of monitor cell.
Multiple input communication power supply circuit in, the positive pole of first diode and the positive pole of second diode are connected to the sense terminal of monitor unit, the negative pole connection of first diode is located first working power supply with first check point between the first contactor the negative pole connection of second diode is located first stand-by power supply with the second check point of second contactor, the sense terminal of first logical board that gives off electricity is connected equally the positive pole of first diode with the positive pole of second diode.
In the multiple input communication power supply circuit of the present invention, the first load output positive electrode is connected to the positive reference ground.
In the multiple-input communication power supply circuit of the present invention, the first load switch module includes a plurality of load switch units, and each load switch unit includes a load switch and a load diode, the first input switch module and the second end of the load switch are connected to the first end of the load switch, and the anode of the load diode is connected to the second end of the load switch, the cathode of the load diode is connected to the monitoring unit, and the detection end of the monitoring unit is further connected to the first contactor and the fifth detection point between the second contactors.
Multiple input communication power supply circuit in, the second power branch road includes second input switch module, second load switch module and second load output positive pole, second input switch module including connect second working power supply with the third contactor of second load switch module and connect the second stand-by power supply with the fourth contactor of second load switch module, the control end of third contactor is connected first logical board that makes a telegram, the control end of fourth contactor is connected the second logical board that makes a telegram, the second load output positive pole is connected the output of monitor unit.
In the multiple input communication power supply circuit of the present invention, the detecting end of the monitoring unit is connected to the anode of the third diode and the anode of the fourth diode, the cathode of the third diode is connected to the second working power supply and the third detecting point between the third contactors, the cathode of the fourth diode is connected to the second standby power supply and the fourth detecting point between the fourth contactors, the detecting end of the first power down logic board is also connected to the anode of the third diode and the anode of the fourth diode.
In the multiple input communication power supply circuit of the present invention, the second load output positive electrode is connected to the positive reference ground.
In the multiple-input communication power supply circuit of the present invention, the second load switch module includes a plurality of load switch units, and each load switch unit includes a load switch and a load diode, the first end of the load switch is connected to the second input switch module and the second end is connected to the anode of the load diode, the cathode of the load diode is connected to the monitoring unit, and the detection end of the monitoring unit is further connected to the third contactor and the sixth detection point between the fourth contactors.
In the multiple input communication power supply circuit of the present invention, the monitoring unit may further include a first power down logic board and a second power down logic board, wherein the first power down logic board and the second power down logic board are connected to the power input terminal.
Implement the utility model discloses a multichannel input communication power supply circuit only needs a monitoring unit cooperation down the control and the management that power supply circuit just can be accomplished to electric logic board, therefore the circuit is small, simple structure and with low costs. Furthermore, the multi-output of each load is realized by connecting the positive pole of the load output with the positive pole reference ground and performing shunt output.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is a schematic block diagram of a first preferred embodiment of a multiple input communication power supply circuit of the present invention;
fig. 2 is a schematic block diagram of a second preferred embodiment of the multiple input communication power supply circuit of the present invention;
fig. 3 is a circuit schematic of the multiple input communication power supply circuit shown in fig. 2.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Fig. 1 is a schematic block diagram of a first preferred embodiment of the multiple input communication power supply circuit of the present invention. As shown in fig. 1, the multi-input communication power circuit of the present invention includes a first power branch 100, a second power branch 200 and a control module 300. The control module 300 includes a single monitoring unit 310, a first power down logic board 320 and a second power down logic board 330, wherein a detection end of the monitoring unit 310 is respectively connected to detection points on the first power branch 100 and the second power branch 200 to receive a detection signal and generate a switch control signal for controlling switch modules of the first power branch 100 and the second power branch 200 based on the detection signal. The monitoring unit 310 electrically connects the first lower logic board 320 and the second lower logic board 330 to transmit a part of the switch control signal to the first lower logic board 320 and the second lower logic board 330. The monitoring unit 310, the first power down logic board 320 and the second power down logic board 330 control the corresponding switch modules based on the switch control signal.
In the preferred embodiment of the present invention, the first power branch 100 and the second power branch 200 may respectively include a corresponding working power supply, a standby power supply, a switch module and a load output anode, and the working power supply and the standby power supply may respectively connect the load output anode through the corresponding switch module to supply power. The detection end of the monitoring unit 310 may be connected to any suitable detection point on the first power branch 100 and the second power branch 200 respectively to detect the current or voltage thereof, so as to determine whether the working power supplies normally, and control the corresponding switch module to control the working power supply or the standby power supply to supply power based on the detection result. Namely, when the working power supply is normal, the switch module corresponding to the working power supply is controlled to be switched on, and the switch module corresponding to the standby power supply is controlled to be switched off so as to supply power by adopting the working power supply. And when the working power supply fails, the switch module corresponding to the standby power supply is controlled to be closed so as to supply power by adopting the standby power supply. In order to reduce the workload of the monitoring unit, in this embodiment, a first lower logic board 320 and a second lower logic board 330 are provided, and the monitoring unit 310 electrically connects the first lower logic board 320 and the second lower logic board 330 to transmit a part of the switch control signal to the first lower logic board 320 and the second lower logic board 330, so that the monitoring unit 310, the first lower logic board 320 and the second lower logic board 330 control the corresponding switch module based on the switch control signal received by the monitoring unit 310, the first lower logic board 320 and the second lower logic board 330. Therefore, the monitoring and management of the power circuit can be completed only by matching one monitoring unit with the lower electric logic board, and the circuit has small volume, simple structure and low cost.
Those skilled in the art will appreciate that the first power branch 100 and the second power branch 200 may be implemented in any known power branch configuration. The monitoring unit 310 may be implemented by any suitable monitoring module known in the art, such as an SM-DCU, and the first lower logic board 320 and the second lower logic board 330 may also be implemented by any suitable logic board, chip or circuit. The switching module may comprise any suitable switching device, such as relays, switching tubes, contactors, etc.
Fig. 2 is a schematic block diagram of a second preferred embodiment of the multiple input communication power supply circuit of the present invention. Fig. 3 is a circuit schematic of the multiple input communication power supply circuit shown in fig. 2. In the preferred embodiment shown in fig. 2-3, the multi-input communication power circuit of the present invention comprises a first power branch 100, a second power branch 200, a control module 300, and a positive power input terminal 400. The first power branch 100 includes a first input switch module 110, a first load switch module 120, and a first load output anode 130. The second power branch 200 includes a second input switch module 210, a second load switch module 220, and a second load output anode 230. The control module 300 includes a single monitoring unit 310, a first lower electrical logic board 320 and a second lower electrical logic board 330.
As further shown in fig. 3, the first input switch module 110 includes a first contactor KM1 connected to a-48V operating power source V1 and the first load switch module 120, and a second contactor KM2 connected to a standby power source V3 and the first load switch module 120, and a control terminal of the first contactor KM1 is connected to the monitoring unit 310. The control terminal of the second contactor KM2 is connected to the second power-down logic board 330, and the first load output anode 130 is connected to the output terminal of the monitoring unit 310. The detection end of the monitoring unit 310 is connected with the anode of a diode D1 and the anode of a diode D2, the cathode of the diode D1 is connected with a first detection point A between the-48V working power supply V1 and the first contactor KM1, and the cathode of the diode D2 is connected with a second detection point B between the standby power supply V3 and the second contactor KM 2. The second input switch module 210 includes a third contactor KM3 connected to a-48V operating power source V2 and the second load switch module 220, and a fourth contactor KM4 connected to a standby power source V4 and the second load switch module 220, a control terminal of the third contactor KM3 is connected to the first power-down logic board 320, a control terminal of the fourth contactor KM4 is connected to the second power-down logic board 330, and the second load output positive electrode 230 is connected to the output terminal of the monitoring unit 310. The detection end of the monitoring unit 310 is connected with the anode of a diode D3 and the anode of a diode D4, the cathode of the diode D3 is connected with a third detection point C between the-48V working power supply V2 and the third contactor KM3, and the cathode of the fourth diode D4 is connected with a fourth detection point D between the standby power supply V4 and the fourth contactor KM 4. The power terminals of the monitoring unit 310, the first power-down logic board 320 and the second power-down logic board 330 are simultaneously connected to the power input anode 400.
In the preferred embodiment, the detecting terminals of the monitoring unit 310 are respectively connected to the first detecting point a, the second detecting point B, the third detecting point C and the fourth detecting point D through diodes, so as to determine whether the-48V working power supply V1 and the-48V working power supply V2 can normally operate according to the detecting signals, if so, the detecting terminals are powered by the diodes, otherwise, the detecting terminals are powered by the corresponding backup power supply V3 or the backup power supply V4. At this time, the monitoring unit 310 generates a corresponding switch control signal for controlling the first contactor KM1, the second contactor KM2, the third contactor KM3 or the fourth contactor KM4 to be opened or closed based on the detection signal. In the preferred embodiment, the control end of the first contactor KM1 is connected to the monitoring unit 310. The control end of the second contactor KM2 is connected to the second lower logic board 330, the control end of the third contactor KM3 is connected to the first lower logic board 320, and the control end of the fourth contactor KM4 is connected to the second lower logic board 330, so that the first contactor KM1, the second contactor KM2, the third contactor KM3 or the fourth contactor KM4 can be controlled by the monitoring unit 310, the first lower logic board 320 and the second lower logic board 330 respectively. Therefore, the monitoring and management of the power circuit can be completed only by matching one monitoring unit with the lower electric logic board, and the circuit has small volume, simple structure and low cost.
Of course, in other preferred embodiments of the present invention, other control connection relationships may also be adopted, for example, the control end of the second contactor KM2 is connected to the monitoring unit 310. The control terminals of the first contactor KM1 and the fourth contactor KM4 are connected to the second lower logic board 330, and the control terminal of the third contactor KM3 is connected to the first lower logic board 320. Those skilled in the art will appreciate that various ways of splitting the control process to two lower logic boards, thereby reducing the use of monitoring units, may be used with the present invention.
In a preferred embodiment of the present invention, the sensing terminal of the first lower logic board 320 is also connected to the anode of the diode D1 and the anode of the diode D2, and the sensing terminal of the first lower logic board 320 is also connected to the anode of the diode D3 and the anode of the diode D4. In this way, the first lower logic board 320 may also perform partial detection and signal comparison operations when the monitoring unit is damaged or the memory is not enough, or in other cases.
In a further preferred embodiment shown in fig. 3, the detection terminal of the monitoring unit 310 is further connected to a fifth detection point E between the first contactor KM1 and the second contactor KM2 and a sixth detection point F between the third contactor KM3 and the fourth contactor KM4, so as to better detect the bus input voltages of the-48V working power source V1 and the-48V working power source V2. Of course, any suitable number of the first to sixth detection points may be selected. More monitoring points may also be added. The selection can be made by those skilled in the art according to the actual situation.
The utility model discloses in, through the monitoring unit 320, first electric logic board 320 and second electric logic board 330 can realize the independent outage and the reserve electricity of each load to reserve power supply V3, V4 can adopt any suitable mode, for example alternating current-direct current oil engine multimode progress reserve electricity, and can realize the electric energy statistics and the remote management of each load through the monitoring unit.
In the present invention, the first load switch module 120 includes a plurality of load switch units, each of which includes a load switch and a load diode, the first end of the load switch is connected to the first input switch module 110, the second end of the load switch is connected to the anode of the load diode, and the cathode of the load diode is connected to the monitoring unit 310. The second load switch module 220 includes a plurality of load switch units, each of which includes a load switch and a load diode, a first end of the load switch is connected to the second input switch module 210, a second end of the load switch is connected to an anode of the load diode, and a cathode of the load diode is connected to the monitoring unit 310. The first load output anode 130 is connected to positive ground reference and the second load output anode 230 is also connected to positive ground reference. Therefore, the utility model discloses still connect anodal reference ground and shunt output through adopting the load output positive pole, realize the multiplexed output of every load.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A multi-input communication power circuit comprises a first power branch, a second power branch and a control module, and is characterized in that the control module comprises a single monitoring unit, a first power down logic board and a second power down logic board, wherein the detection end of the monitoring unit is respectively connected with detection points on the first power branch and the second power branch to receive detection signals and generate switch control signals for controlling switch modules of the first power branch and the second power branch based on the detection signals, and the monitoring unit is electrically connected with the first power down logic board and the second power down logic board to send part of the switch control signals to the first power down logic board and the second power down logic board; the monitoring unit, the first power down logic board and the second power down logic board control the corresponding switch module based on the switch control signal.
2. The multiple-input communication power supply circuit according to claim 1, wherein the first power supply branch comprises a first input switch module, a first load switch module and a first load output anode, the first input switch module comprises a first contactor connecting a first working power supply and the first load switch module, and a second contactor connecting a first standby power supply and the first load switch module, a control end of the first contactor is connected to the monitoring unit, a control end of the second contactor is connected to the second power-down logic board, and the first load output anode is connected to an output end of the monitoring unit.
3. The multiple-input communication power supply circuit according to claim 2, wherein the detection terminal of the monitoring unit is connected to an anode of a first diode and an anode of a second diode, a cathode of the first diode is connected to a first detection point between the first working power supply and the first contactor, a cathode of the second diode is connected to a second detection point between the first backup power supply and the second contactor, and the detection terminal of the first lower logic board is also connected to the anode of the first diode and the anode of the second diode.
4. The multiple-input communication power supply circuit according to claim 3, wherein the first load output positive electrode is connected to a positive reference ground.
5. The multiple-input communication power supply circuit according to claim 4, wherein the first load switch module comprises a plurality of load switch units, each load switch unit comprises a load switch and a load diode, a first end of the load switch is connected to the first input switch module, a second end of the load switch is connected to an anode of the load diode, a cathode of the load diode is connected to the monitoring unit, and a detection end of the monitoring unit is further connected to a fifth detection point between the first contactor and the second contactor.
6. The multiple-input communication power supply circuit according to any one of claims 1 to 5, wherein the second power supply branch comprises a second input switch module, a second load switch module and a second load output anode, the second input switch module comprises a third contactor connecting a second operating power supply and the second load switch module, and a fourth contactor connecting a second standby power supply and the second load switch module, a control terminal of the third contactor is connected to the first power-down logic board, a control terminal of the fourth contactor is connected to the second power-down logic board, and the second load output anode is connected to the output terminal of the monitoring unit.
7. The multiple-input communication power supply circuit according to claim 5, wherein the detection terminal of the monitoring unit is connected to an anode of a third diode and an anode of a fourth diode, a cathode of the third diode is connected to a third detection point between the second working power supply and the third contactor, a cathode of the fourth diode is connected to a fourth detection point between the second backup power supply and the fourth contactor, and the detection terminal of the first power-down logic board is also connected to an anode of the third diode and an anode of the fourth diode.
8. The multiple-input communication power supply circuit according to claim 7, wherein the second load output positive electrode is connected to a positive reference ground.
9. The multiple-input communication power supply circuit according to claim 8, wherein the second load switch module comprises a plurality of load switch units, each load switch unit comprises a load switch and a load diode, a first end of the load switch is connected to the second input switch module, a second end of the load switch is connected to an anode of the load diode, a cathode of the load diode is connected to the monitoring unit, and a detection end of the monitoring unit is further connected to a sixth detection point between the third contactor and the fourth contactor.
10. The multiple-input communication power supply circuit according to claim 1, wherein the power terminals of the monitoring unit, the first power-down logic board and the second power-down logic board are simultaneously connected to a power input positive electrode.
CN202121418138.5U 2021-06-24 2021-06-24 Multi-channel input communication power supply circuit Active CN215009745U (en)

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Application Number Priority Date Filing Date Title
CN202121418138.5U CN215009745U (en) 2021-06-24 2021-06-24 Multi-channel input communication power supply circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121418138.5U CN215009745U (en) 2021-06-24 2021-06-24 Multi-channel input communication power supply circuit

Publications (1)

Publication Number Publication Date
CN215009745U true CN215009745U (en) 2021-12-03

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