CN221177282U - Zero standby loss power supply system - Google Patents
Zero standby loss power supply system Download PDFInfo
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- CN221177282U CN221177282U CN202322935647.0U CN202322935647U CN221177282U CN 221177282 U CN221177282 U CN 221177282U CN 202322935647 U CN202322935647 U CN 202322935647U CN 221177282 U CN221177282 U CN 221177282U
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Abstract
The utility model relates to a power supply system with zero standby loss, which comprises a system control module, an external control power supply module and an external control relay. The system control module is provided with a communication interface and a control output interface, the external control power supply module comprises a single-phase external control power supply module and a three-phase external control power supply module, the power supply system with zero standby loss cancels an alternating current contactor by using the external control power supply module, and the external control power supply module works in a main loop and an auxiliary power supply corresponding to the external control power supply module stops working under the standby condition of the external control power supply module, so that all power consumption is reduced to zero, energy consumption is reduced, cost is reduced, and good economic benefit is obtained.
Description
Technical Field
The utility model relates to the technical field of power supplies, in particular to a power supply system with zero standby loss.
Background
With the deep trend of energy conservation and emission reduction in large environment, the power supply equipment further saves energy and reduces consumption, and deeper energy consumption control needs to be carried out from the system to the modules, so that the high-efficiency and low-power consumption utilization of energy sources is realized. The power supply system works except that the conversion efficiency of the power supply module is lost, more standby losses are caused, and a large amount of standby losses need to be minimized. Various power supply systems including a charging pile system have the situation that the power supply system is not used for a long time in standby, and the situation that the standby time of the power supply module is very long. The traditional power supply system is generally provided with key components such as a system main control component, a power supply module, a communication circuit, a handover contactor and the like; the system main control and the power supply module are controlled through communication, but the power consumption of the power supply module cannot be completely closed when the system main control and the power supply module are in standby.
Disclosure of utility model
In view of this, it is necessary to provide a power supply system that is reliable in operation, flexible in operation, and free from standby loss.
A power supply system with zero standby loss comprises a system control module, an external control power supply module and an external control relay. The system control module is provided with a communication interface and a control output interface, the external control power supply module is divided into a single-phase external control power supply module and a three-phase external control power supply module, the single-phase external control power supply module and the three-phase external control power supply module are provided with the communication interface, the external control relay is provided with the control input interface, the communication interface of the system control module is connected with the communication interface of the external control power supply module through a communication line, communication between the system control module and the external control power supply module is achieved, the control output interface of the system control module is connected with the control input interface of the external control relay through a control line, the system control module controls the external control relay, the power supply line is connected with the external control power supply module through the external control relay, and the system control module controls on-off of the external control power supply module through the external control relay.
Further, the single-phase external control power supply module is powered by a single-phase mains supply, the single-phase mains supply comprises a phase line L, a zero line N and a ground line PE, the three-phase external control power supply module is powered by a three-phase mains supply, and the three-phase mains supply comprises a first phase line L1, a second phase line L2, a third phase line L3 and the ground line PE.
Further, the three-phase external control power supply module comprises a three-phase PFC unit, a three-phase DC-DC unit, an auxiliary power supply, a first internal control relay, a second internal control relay, a first external control relay, a second external control relay, a first internal control signal input end, a second internal control signal input end, a first cement resistor, a second cement resistor and a control signal end C1, wherein a first phase line L1 is connected to one end of the first external control relay, the other end of the first external control relay is connected to one end of the first internal control relay, the other end of the first internal control relay is connected to the three-phase PFC unit, the first cement resistor is connected with the first internal control relay in parallel, a second phase line L2 is connected to one end of the second external control relay, the other end of the second internal control relay is connected to the three-phase PFC unit, a second cement resistor is connected with the second internal control relay in parallel, a third phase line L3 is connected to the three-phase PFC unit, the output of the three-phase PFC unit is connected to the three-phase DC-DC unit, the control signal end C1 is connected to the three-phase PFC unit through the first external control relay, the second external control signal is connected to the second external control interface, and the first external control signal is connected to the three-phase PFC unit, and the first external control interface is connected to the three-phase PFC unit, and the input end of the three-phase PFC module is connected to the input to the three-phase power supply.
Further, the single-phase external control power supply module comprises a single-phase PFC unit, a single-phase DC-DC unit, an auxiliary power supply, a third internal control relay, a third external control relay, a third internal control signal input end, a third cement resistor and a control signal end C2, wherein a phase line L is connected to one end of the third external control relay, the other end of the third external control relay is connected to one end of the third internal control relay, the other end of the third internal control relay is connected to the single-phase PFC unit, the third cement resistor is connected with the third internal control relay in parallel, a zero line N is connected to the single-phase PFC unit, the output of the single-phase PFC unit is connected to the single-phase DC-DC unit, the control signal end C2 is connected to a control output interface of the system control module through a control input interface of the third external control relay, the third internal control signal input end is connected with an internal control end of the single-phase external control power supply module, and the third cement resistor is used for power-on soft start of the single-phase external control power supply module.
And the power-on logic of the external control power supply module is as follows:
1. When the contact switch of the first external control relay and the second external control relay is a normally closed contact, the three-phase external control power supply module is electrified, and when the contact switch of the first external control relay and the second external control relay is a normally open contact, the control signal end C1 of the three-phase external control power supply module enters the subsequent logic operation after receiving an opening signal after the three-phase external control power supply module is electrified;
When the third external control relay contact switch is a normally closed contact, the single-phase external control power supply module is electrified, or when the third external control relay is a normally open contact, after the single-phase external control power supply module is electrified, a control signal end C2 of the single-phase external control power supply module receives an opening signal and then enters subsequent logic operation.
2. After the external control power supply module is electrified, current enters the three-phase external control power supply module through the first cement resistor and the second cement resistor, current enters the single-phase external control power supply module through the third cement resistor, the first cement resistor, the second cement resistor and the third cement resistor limit the current entering the external control power supply module, an auxiliary power supply is established, and a control system starts to work.
3. The internal control end of the external control power supply module sends a driving signal to the control ends of the three internal control relays to drive the three internal control relays to be conducted;
4. The three internal control relays are conducted to enable the first cement resistor, the second cement resistor and the third cement resistor to be short-circuited, and currents are respectively supplied to the three-phase PFC unit and the single-phase PFC unit through the internal control relays, the three-phase PFC unit and the single-phase PFC unit work, and the three-phase DC-DC unit and the single-phase DC-DC unit work.
Preferably, for the three-phase external control power supply control module, besides the first phase line L1 and the second phase line L2, an internal control relay and a soft start cement resistor are arranged at two phases, and the third phase line L3 can also be provided with an internal control relay, a soft start cement resistor and an external control relay.
Preferably, for a single-phase external control power supply module, besides the phase line L being provided with an internal control relay and a soft start cement resistor, the zero line N can also be provided with an internal control relay, a soft start cement resistor and an external control relay.
Preferably, the two control signal terminals C1 and C2 may be connected together, and one control signal is used to control the two sets of external control relays simultaneously, and the two control signal terminals C1 and C2 may also be separated, and one driving signal is used to control one set of external control relays respectively.
According to the power supply system with zero standby loss, the external control power supply module is used, the alternating current contactor is omitted, under the standby condition of the external control power supply module, the external control relay can cut off the working main loop of one external control power supply module independently according to the requirement, all or all of the working main loops of all external control power supply modules are cut off in groups, the auxiliary power supply corresponding to the external control power supply module stops working, and all power consumption is reduced to zero; when the power supply system is required to work, the external control signal drives the external control relay to be conducted, the power supply system is in communication recovery, the communication work realizes that the further work is ready to be awakened, the standby power consumption is zero, the expensive alternating current contactor is canceled, the energy consumption is reduced, the cost is reduced, and good economic benefits are obtained.
Drawings
Fig. 1 is a schematic diagram of a zero standby loss power supply system according to an embodiment of the present utility model.
Fig. 2 is a schematic diagram of an external control power module of a power supply system with zero standby loss according to an embodiment of the present utility model.
Fig. 3 is a schematic diagram of a conventional ac contactor-equipped power supply system.
In the figure: 11. the cement-based concrete composite concrete comprises a first cement resistor, 21, a second cement resistor, 71, a third cement resistor, 12, a first external control relay, 22, a second external control relay, 72, a third internal control relay, 13, a first internal control signal input end, 23, a second internal control signal input end, 73, a third internal control signal input end, 14, a first external control relay, 24, a second external control relay, 74, a third external relay, a C1, a three-phase external control relay control end, a C2 and a single-phase external control relay control end.
Detailed Description
The present utility model will be described in detail with reference to specific embodiments and drawings.
Referring to fig. 1-3, a power supply system with zero standby loss according to an embodiment of the present utility model includes a system control module, an external control power module, and an external control relay. The system control module is provided with a communication interface and a control output interface, the external control power supply module comprises a single-phase external control power supply module and a three-phase external control power supply module, the single-phase external control power supply module and the three-phase external control power supply module are all provided with the communication interface, the external control relay is provided with the control input interface, the communication interface of the system control module is connected with the communication interface of the external control power supply module through a communication line, the communication between the system control module and the external control power supply module is realized, the control output interface of the system control module is connected with the control input interface of the external control relay through a control line, and the system control module controls the external control relay. The mains supply supplies power to the external control power supply module through a power line and the external control relay, and the system control module controls the on-off of the power supply of the external control power supply module through controlling the external control relay.
Further, the single-phase external control power supply module is powered by a single-phase mains supply, the single-phase mains supply comprises a phase line L, a zero line N and a ground line PE, the three-phase external control power supply module is powered by a three-phase mains supply, and the three-phase mains supply comprises a first phase line L1, a second phase line L2, a third phase line L3 and a ground line PE.
Further, the three-phase external control power supply module comprises a three-phase PFC unit, a three-phase DC-DC unit, an auxiliary power supply, a first internal control relay 12, a second internal control relay 22, a first external control relay 14, a second external control relay 24, a first internal control signal input end 13, a second external control relay 23, a first cement resistor 11, a second cement resistor 12 and a control signal end C1, wherein a first phase line L1 is connected to one end of the first external control relay, the other end of the first external control relay is connected to one end of the first internal control relay, the other end of the first internal control relay is connected to the three-phase PFC unit, a first cement resistor is connected in parallel with the first internal control relay, a second phase line L2 is connected to one end of the second external control relay, the other end of the second external control relay is connected to one end of the second internal control relay, the second internal control relay is connected to the three-phase PFC unit, a third phase PFC unit is connected to the three-phase PFC unit through the external control interface, the control signal end C1 is connected to the three-phase PFC unit through the external control interface, the first external control signal input end of the three-phase PFC unit is connected to the first external control signal input end of the control module, the first external control interface is connected to the three-phase PFC unit, and the first external control signal input end of the three-phase PFC unit is connected to the three-phase PFC unit, and the first external control signal input end is connected to the three-phase PFC unit through the output by the first external control interface.
The single-phase external control power supply module comprises a single-phase PFC unit, a single-phase DC-DC unit, an auxiliary power supply, a third internal control relay 72, a third external control relay 74, a third internal control signal input end 73, a third cement resistor 71 and a control signal end C2, wherein a phase line L is connected to one end of the third external control relay 74, the other end of the third external control relay 74 is connected to one end of the third internal control relay 72, the other end of the third internal control relay 72 is connected to the single-phase PFC unit, a third cement resistor 71 is connected with the third internal control relay 74 in parallel, a zero line N is connected to the single-phase PFC unit, the output of the single-phase PFC unit is connected to the single-phase DC-DC unit, the control signal end C2 is connected to a control output interface of the system control module through a control input interface of the third external control relay, the third internal control signal input end 73 is connected with an internal control end of the single-phase external control power supply module, and the third cement resistor 71 is used for electric soft start on the single-phase external control power supply module.
The power-on logic step of the external control power supply module comprises the following steps:
A1. when the contact switches of the first external control relay 14 and the second external control relay 24 are normally closed contacts, the three-phase external control power supply module is electrified and then enters an electrified logic step A2; when the contact switches of the first external control relay 14 and the second external control relay 24 are normally open contacts, after the three-phase external control power supply module is electrified, a control signal end C1 of the three-phase external control power supply module receives an opening signal and enters an electrified logic step A2;
When the contact switch of the third external control relay 74 is a normally closed contact, the single-phase external control power supply module is electrified and then enters an electrifying logic step A2; when the contact switch of the third external control relay 74 is a normally open contact, after the single-phase external control power module is electrified, the control signal end C2 of the single-phase external control power module enters an electrified logic step A2 after receiving an opening signal.
A2. After the three-phase external control power supply module is electrified, current enters the three-phase external control power supply module through the first cement resistor 11 and the second cement resistor 21 after the three-phase external control power supply module is electrified, and after the single-phase external control power supply module is electrified, current enters the single-phase external control power supply module through the third cement resistor 71, so that an auxiliary power supply is established, and a control system starts to work.
A3. The control system sends driving signals to the first internal control signal input end 13, the second internal control signal input end 23 and the third internal control signal input end 73 to drive the three internal control relays to be conducted.
A4. The three internal control relays are conducted so that the first cement resistor 11, the second cement resistor 21 and the third cement resistor 71 are short-circuited, current can supply power to the three-phase PFC unit and the single-phase PFC unit through the contact switches of the three internal control relays respectively, the three-phase PFC unit and the single-phase PFC unit enter working states, and the three-phase DC-DC unit and the single-phase DC-DC unit enter working states.
Preferably, for the three-phase external control power supply module, besides the first phase line L1, the second phase line L2 is provided with an internal control relay and a soft start cement resistor, and the third phase line L3 can also be provided with an internal control relay, a soft start cement resistor and an external control relay.
Preferably, for a single-phase external control power supply module, besides the phase line L being provided with an internal control relay and a soft start cement resistor, the zero line N can also be provided with an internal control relay, a soft start cement resistor and an external control relay.
Preferably, the control signal terminals C1 and C2 may be connected together, and one control signal is used to control two groups of external control relays simultaneously, and the control signal terminals C1 and C2 may be separated, and each group of external control relays is controlled by one driving signal.
According to the power supply system with zero standby loss, the external control power supply module is used, the alternating current contactor is omitted, under the standby condition of the external control power supply module, the external control relay can cut off the working main loop of one external control power supply module independently according to the requirement, all or all of the working main loops of all external control power supply modules are cut off in groups, the auxiliary power supply corresponding to the external control power supply module stops working, and all power consumption is reduced to zero; when the power supply system is required to work, the external control signal drives the external control relay to be conducted, the power supply system is in communication recovery, the communication work realizes that the further work is ready to be awakened, the standby power consumption is zero, the expensive alternating current contactor is canceled, the energy consumption is reduced, the cost is reduced, and good economic benefits are obtained.
It should be noted that the present utility model is not limited to the above embodiments, and those skilled in the art can make other changes according to the inventive spirit of the present utility model, and these changes according to the inventive spirit of the present utility model should be included in the scope of the present utility model as claimed.
Claims (6)
1. The power supply system with zero standby loss is characterized by comprising a system control module, an external control power supply module and an external control relay, wherein the system control module is provided with a communication interface and a control output interface, the external control power supply module comprises a single-phase external control power supply module and a three-phase external control power supply module, the single-phase external control power supply module and the three-phase external control power supply module are both provided with the communication interface, the external control relay is provided with a control input interface, the communication interface of the system control module is connected with the communication interface of the external control power supply module through a communication wire, the communication between the system control module and the external control power supply module is realized, the control output interface of the system control module is connected with the control input interface of the external control relay through a control wire, the power wire is connected with the external control power supply module through the external control relay, and the power supply of a mains supply is controlled by the external control relay;
The single-phase external control power supply module is powered by a single-phase mains supply, the single-phase mains supply comprises a phase line L, a zero line N and a ground line PE, the three-phase external control power supply module is powered by a three-phase mains supply, and the three-phase mains supply comprises a first phase line L1, a second phase line L2, a third phase line L3 and the ground line PE.
2. The power supply system with zero standby loss according to claim 1, wherein the three-phase external control power supply module comprises a three-phase PFC unit, a three-phase DC-DC unit, an auxiliary power supply, a first internal control relay, a second internal control relay, a first external control relay, a second external control relay, a first internal control signal input end, a second internal control signal input end, a first cement resistor, a second cement resistor and a control signal end C1, wherein a first phase line L1 is connected to one end of the first external control relay, the other end of the first external control relay is connected to one end of the first internal control relay, the other end of the first internal control relay is connected to the three-phase PFC unit, the first cement resistor is connected in parallel with the first internal control relay, a second phase line L2 is connected to one end of the second external control relay, the other end of the second external control relay is connected to one end of the second internal control relay, the second cement resistor is connected in parallel with the second internal control signal input end of the three-phase PFC unit, the third phase PFC unit output is connected to the three-phase PFC unit through the first external control signal input end of the first external control relay, the third phase PFC unit is connected to the three-phase PFC unit, the first external control signal input end of the three-phase PFC unit is connected to the first external control relay, the first phase PFC unit is connected to the three-phase PFC unit, and the three-phase PFC signal input end is connected to the three-phase PFC unit, and the three-phase PFC signal input by the control module is connected to the three phase input signal input by the control module, and the control signal input by the control module;
The single-phase external control power supply module comprises a single-phase PFC unit, a single-phase DC-DC unit, an auxiliary power supply, a third internal control relay, a third external control relay, a third internal control signal input end, a third cement resistor and a control signal end C2, wherein a phase line L is connected to one end of the third external control relay, the other end of the third external control relay is connected to one end of the third internal control relay, the other end of the third internal control relay is connected to the single-phase PFC unit, the third cement resistor is connected with the third internal control relay in parallel, a zero line N is connected to the single-phase PFC unit, the output of the single-phase PFC unit is connected to the single-phase DC-DC unit, the control signal end C2 is connected to a control output interface of the system control module through a control input interface of the third external control relay power supply module, the third internal control signal input end is connected with an internal control end of the single-phase external control power supply module, and the third cement resistor is used for power-on soft start of the single-phase external control power supply module.
3. The zero standby loss power system of claim 2, wherein the power-on logic of the external control power module:
A1, when the contact switches of the first external control relay and the second external control relay are normally closed contacts, the three-phase external control power supply module is electrified, and when the contact switches of the first external control relay and the second external control relay are normally open contacts, after the three-phase external control power supply module is electrified, a control signal end C1 of the three-phase external control power supply module receives an opening signal and then enters subsequent logic operation;
When the third external control relay contact switch is a normally closed contact, the single-phase external control power supply module is electrified, and when the third external control relay is a normally open contact, after the single-phase external control power supply module is electrified, a control signal end C2 of the single-phase external control power supply module receives an opening signal and then enters subsequent logic operation;
A2, after the external control power supply module is electrified, current enters the three-phase external control power supply module through a first cement resistor and a second cement resistor, current enters the single-phase external control power supply module through a third cement resistor, an auxiliary power supply is established, and a control system starts to work;
A3, the control system sends driving signals to the control ends 13, 23 and 73 of the three internal control relays to drive the three internal control relays to be conducted;
A4, the three internal control relays are conducted to enable the first cement resistor, the second cement resistor and the third cement resistor to be short-circuited, and current enters the three-phase PFC unit and the single-phase PFC unit through the three internal control relays respectively, the three-phase PFC unit and the single-phase PFC unit work, and the three-phase DC-DC unit and the single-phase DC-DC unit work.
4. The power supply system with zero standby loss according to claim 2, wherein the three-phase external control power supply module is characterized in that two phases of a first phase line L1 and a second phase line L2 are provided with an internal control relay and a soft start cement resistor, and a third phase line L3 is provided with an internal control relay, a soft start cement resistor and an external control relay; the phase line L in the single-phase external control power supply module is provided with an internal control relay and a soft start cement resistor, and the zero line N is provided with the internal control relay, the soft start cement resistor and the external control relay.
5. The zero standby loss power system of claim 2, wherein the three-phase external control power module control signal terminal C1 and the single-phase external control power module control signal terminal C2 are connected together, and two groups of external control relays are simultaneously controlled using one control signal.
6. The zero standby loss power system of claim 2, wherein the three-phase external control power module control signal terminal C1 controls the first external control relay and the second external control relay using one driving signal, and the single-phase external control power module control signal terminal C2 controls the third external control relay using another driving signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202322935647.0U CN221177282U (en) | 2023-10-31 | 2023-10-31 | Zero standby loss power supply system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202322935647.0U CN221177282U (en) | 2023-10-31 | 2023-10-31 | Zero standby loss power supply system |
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| CN221177282U true CN221177282U (en) | 2024-06-18 |
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