WO2018192224A1 - Battery switching method and apparatus, and switching system and method for power supply circuit - Google Patents

Battery switching method and apparatus, and switching system and method for power supply circuit Download PDF

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Publication number
WO2018192224A1
WO2018192224A1 PCT/CN2017/113514 CN2017113514W WO2018192224A1 WO 2018192224 A1 WO2018192224 A1 WO 2018192224A1 CN 2017113514 W CN2017113514 W CN 2017113514W WO 2018192224 A1 WO2018192224 A1 WO 2018192224A1
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WO
WIPO (PCT)
Prior art keywords
power supply
supply circuit
battery
switch
voltage
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Application number
PCT/CN2017/113514
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French (fr)
Chinese (zh)
Inventor
李振国
祝凌云
Original Assignee
北京凌云智能科技有限公司
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Publication of WO2018192224A1 publication Critical patent/WO2018192224A1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00Electric propulsion with power supplied within the vehicle
    • B60L50/50Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/64Constructional details of batteries specially adapted for electric vehicles
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/36Arrangements using end-cell switching
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries

Definitions

  • the present application relates to the field of circuits, and in particular, to a method and apparatus for battery switching and a switching system and method for a power supply circuit.
  • the battery switching technology realizes that each group of batteries is separately charged and discharged by grouping the batteries, and the battery switching technology is applied to the electric vehicle field, and the plurality of batteries are used as electric vehicles, so that when a certain group of batteries is used up, the battery is switched to the next one.
  • the battery pack is powered, and each battery pack can be removed separately for home charging.
  • the embodiments of the present application provide a battery switching method and apparatus, and a power supply circuit switching system and method, to at least solve the technical problem that the multiple switches cannot be seamlessly switched to the load.
  • a method for switching a battery includes: supplying power to a load by using a first battery in a first power supply circuit, wherein the first power supply circuit is any of at least two power supply circuits One, the voltage of the first battery is greater than a preset voltage; and the first battery is powered by the load During the process, detecting the voltage of the first battery; when detecting that the voltage of the first battery is greater than the preset voltage, continuing to use the first battery to supply power to the load; when detecting the first When the voltage of the battery is less than or equal to the preset voltage, first controlling the second battery in the second power supply circuit to supply power to the load, and then controlling the first battery to stop supplying power to the load, wherein the second power supply The circuit is any one of the at least two power supply circuits different from the first power supply circuit, and the voltage of the second battery is greater than the preset voltage.
  • the method further includes: blocking the second power supply circuit and the first power supply circuit to block the second power supply circuit Powering the first power supply circuit.
  • the power supply to the load by the first battery in the first power supply circuit includes: limiting a current supply current in the first power supply circuit to obtain a first current; and supplying power to the load by using the first current; Detecting whether a ratio of a voltage across the load to a voltage of the first battery reaches a preset threshold; when a ratio of a voltage across the load to a voltage of the first battery reaches the preset threshold, stopping The current of the supply current is limited, and the load is used to supply power to the load.
  • first controlling the second battery in the second power supply circuit to supply power to the load, and then controlling the first battery to stop supplying power to the load includes: limiting current supply current in the second power supply circuit, to obtain a Two currents; supplying power to the load by using the second current; detecting whether a ratio of a voltage across the load to a voltage of the second battery reaches the preset threshold; a voltage and a voltage across the load Stopping the current limit of the supply current when the ratio of the voltage of the second battery reaches the preset threshold, and supplying power to the load by using the supply current; after powering the load by using the supply current Controlling the first battery to stop supplying power to the load.
  • the method further includes: arbitrarily selecting one target power supply circuit from the at least two power supply circuits; detecting the battery in the target power supply circuit Whether the voltage is greater than a preset voltage; when the voltage of the battery in the target power supply circuit is greater than the preset voltage, the target power supply circuit is used as the first power supply circuit.
  • a switching system of a power supply circuit includes: a load; at least two power supply circuits, wherein the at least two power supply circuits are connected in parallel, and each of the power supply circuits and The load is connected in series, wherein each of the power supply circuits has the same circuit composition, and each of the power supply circuits includes a battery and a first switch, wherein a first end of the first switch is coupled to a positive pole of the battery The second end of the first switch is coupled to the positive pole of the load, and when the first switch is closed, the battery is powered by the battery in the power supply circuit, and the power supply circuit further includes a second switch and a diode, the second switch being connected in parallel with the diode, the first switch being connected in series with the second switch in parallel and the diode, wherein a positive pole of the diode and the battery a positive pole coupled to the second end of the diode The positive pole of the load is coupled, wherein when the switching of the power supply
  • the power supply circuit further includes: a third switch and a pre-charge resistor, the third switch is connected in parallel with the pre-charge resistor, the first switch and the third switch after parallel connection and the pre-charge A resistor is connected in series, wherein a first end of the pre-charge resistor is coupled to a positive terminal of the battery, and a second end of the pre-charge resistor is coupled to a positive electrode of the load.
  • the power supply circuit further includes: a fourth switch, a first end of the fourth switch is connected to a negative pole of the battery, and a second end of the fourth switch is connected to a negative pole of the load,
  • the battery is powered by the battery in the power supply circuit when the first switch and the fourth switch are closed.
  • a switching method for a power supply circuit of the above switching system comprising: controlling a first switch of the first power supply circuit and a fourth switch of the first power supply circuit to be closed
  • the first power supply circuit is any one of the at least two power supply circuits, the voltage of the battery of the first power supply circuit is greater than a preset voltage; the first switch and the first power supply circuit After the fourth switch of the first power supply circuit is closed, detecting the voltage of the battery of the first power supply circuit; and when detecting that the voltage of the battery of the first power supply circuit is greater than the preset voltage, maintaining the first The first switch of the power supply circuit and the fourth switch of the first power supply circuit are closed; when detecting that the voltage of the battery of the first power supply circuit is less than or equal to the preset voltage, first controlling the second power supply circuit a switch and a fourth switch of the second power supply circuit are closed, and then the first switch of the first power supply circuit and the fourth switch of the first power supply circuit are
  • the power supply circuit includes a second switch and a diode, and before the first switch of the first power supply circuit and the fourth switch of the first power supply circuit are closed, the method further includes: controlling the first power supply circuit The second switch is closed; before the first switch controlling the second power supply circuit and the fourth switch of the second power supply circuit are closed, the method further comprises: controlling the second switch of the first power supply circuit to be disconnected, The first power supply circuit and the second power supply circuit are blocked by the diode.
  • the power supply circuit includes a third switch and a pre-charge resistor, and before the first switch that controls the first power supply circuit and the fourth switch of the first power supply circuit are closed, the method further includes: controlling the A third switch of a power supply circuit is turned off; detecting whether a ratio of a voltage across the load to a voltage of a battery in the first power supply circuit reaches a preset threshold; a voltage across the load and the first power supply circuit When the ratio of the voltage of the middle battery reaches the first threshold, the third switch of the first power supply circuit is controlled to be closed.
  • the method further includes: controlling the third switch of the second power supply circuit to be turned off; After the first switch of the two power supply circuits and the fourth switch of the second power supply circuit are closed, the method further includes: detecting whether the voltage between the voltage across the load and the voltage of the battery in the second power supply circuit reaches the stated a preset threshold; when the voltage between the voltage across the load and the voltage of the battery in the second power supply circuit reaches the preset threshold, controlling the third switch of the second power supply circuit to be closed; controlling the second After the third switch of the power supply circuit is closed, the first switch that controls the first power supply circuit and the fourth switch of the first power supply circuit are turned off.
  • a battery switching device comprising: a first power supply unit, configured to supply power to a load by using a first battery in a first power supply circuit, wherein the first power supply The circuit is any one of a plurality of power supply circuits, each of the power supply circuits has the same circuit composition, the voltage of the first battery is greater than a preset voltage, and the detecting unit is configured to supply power to the load at the first battery During the process, the voltage of the first battery is detected; the second power supply unit is configured to continue to use the first battery to supply power to the load when detecting that the voltage of the first battery is greater than the preset voltage; a third power supply unit, configured to first control a second battery in the second power supply circuit to supply power to the load, and then control the first battery, when detecting that the voltage of the first battery is less than or equal to the preset voltage Stop supplying power to the load, wherein the second power supply circuit is any one of the plurality of power supply circuit
  • the device further includes: a blocking unit, configured to block the second power supply circuit and the first power supply circuit to block the second battery after controlling the second power supply circuit to supply power to the load
  • the second power supply circuit supplies power to the first power supply circuit.
  • a storage medium including a stored program, wherein a method of controlling a device in which the storage medium is located to perform the battery switching described above and a power supply when the program is running Circuit switching method.
  • a processor for operating a program wherein the program is executed while the battery switching method and the switching method of the power supply circuit are performed.
  • the method is as follows: the first battery is used to supply power to the load, and the first power supply circuit is any one of the at least two power supply circuits, and the voltage of the first battery is greater than Setting a voltage; detecting, during the power supply of the first battery, the voltage of the first battery; and when detecting that the voltage of the first battery is greater than the preset voltage, continuing to adopt the a battery powers the load; when detecting that the voltage of the first battery is less than or equal to the preset voltage, first controlling a second battery in the second power supply circuit to supply power to the load, and then controlling the first The battery stops supplying power to the load, wherein the second power supply circuit is any one of the plurality of power supply circuits different from the first power supply circuit, The voltage of the second battery is greater than the preset voltage.
  • the second battery When the voltage of the first battery is less than or equal to the preset voltage, the second battery is first controlled to supply power to the load, and then the first battery is controlled to supply power to the load.
  • the purpose of continuously supplying power to the load during battery switching is to achieve the technical effect of seamlessly switching the power supply to the load by using multiple sets of batteries, thereby solving the technical problem that the multi-group battery cannot be seamlessly switched to the load.
  • FIG. 1 is a flow chart of an alternative battery switching method according to an embodiment of the present application.
  • FIG. 2 is a schematic diagram of an alternative power supply circuit switching system according to an embodiment of the present application.
  • FIG. 3 is a flowchart of a method for switching an optional power supply circuit according to an embodiment of the present application
  • FIG. 4 is a flowchart of a method for switching an optional power supply circuit according to an embodiment of the present application
  • FIG. 5 is a schematic diagram of an alternative battery switching device in accordance with an embodiment of the present application.
  • FIG. 1 is a flowchart of an alternative battery switching method according to an embodiment of the present application. As shown in FIG. 1 , the method includes the following steps:
  • Step S102 The first battery is powered by the first battery in the first power supply circuit, wherein the first power supply circuit is any one of the at least two power supply circuits, and the voltage of the first battery is greater than a preset voltage;
  • Step S104 detecting a voltage of the first battery during the process of supplying power to the load by the first battery
  • Step S106 when it is detected that the voltage of the first battery is greater than the preset voltage, continue to use the first battery to supply power to the load;
  • Step S108 when detecting that the voltage of the first battery is less than or equal to the preset voltage, first controlling the second battery in the second power supply circuit to supply power to the load, and then controlling the first battery to stop supplying power to the load, wherein the second power supply circuit is The power of the second battery is greater than the preset voltage in any one of the at least two power supply circuits different from the first power supply circuit.
  • the switching method of the battery provided by the embodiment of the present application can be used for switching between two or more sets of batteries.
  • the battery is switched to another group of batteries, and the other one is switched to another battery.
  • the battery pack supplies power to the load and maintains uninterrupted power supply during battery switching to achieve seamless switching of the battery.
  • each group of batteries is disposed in a power supply circuit, the first battery is disposed in the first power supply circuit, and the second battery is disposed in the second power supply circuit, the first battery is different from the second battery.
  • the first power supply circuit is different from the second power supply circuit.
  • the battery in the embodiment of the present application may further include a battery other than the first battery and the second battery. Switching between the battery and other batteries included in embodiments of the present application.
  • the first battery is any one of the plurality of batteries in the embodiment of the present application.
  • the first battery may be used to supply power to the load.
  • the voltage of the first battery is continuously decreased.
  • the second battery is used to control the load, and the second battery is the other battery. Any one of the batteries having a voltage greater than the preset voltage is powered by the second battery. Then, the first battery is stopped to supply power to the load to realize uninterrupted power supply to the load, that is, seamless switching of the battery.
  • the following method is adopted: using the first battery in the first power supply circuit to supply the load
  • the first power supply circuit is any one of the at least two power supply circuits, and the voltage of the first battery is greater than a preset voltage; during the power supply of the first battery to the load, the voltage of the first battery is detected; when the first battery is detected When the voltage is greater than the preset voltage, the first battery is continuously used to supply power to the load; when the voltage of the first battery is detected to be less than or equal to the preset voltage, the second battery in the second power supply circuit is first controlled to supply power to the load, and then the control is performed.
  • a battery stops supplying power to the load wherein the second power supply circuit is any one of the plurality of power supply circuits different from the first power supply circuit, and the voltage of the second battery is greater than a preset voltage, and the voltage of the first battery is less than or When the voltage is equal to the preset voltage, the second battery is first controlled to supply power to the load, and then the first battery is controlled to supply power to the load, thereby achieving the purpose of continuously supplying power to the load during battery switching, thereby achieving seamless switching by using multiple sets of batteries.
  • the technical effect of the load supply solves the technical problem that the battery cannot be seamlessly switched to the load through multiple sets of batteries.
  • the method before controlling the second battery to supply power to the load in the second power supply circuit, the method further includes: blocking the second power supply circuit and the first power supply circuit to prevent the second power supply circuit from supplying power to the first power supply circuit.
  • the second battery Since the voltage of the first battery is less than or equal to the preset voltage, the second battery is first controlled to supply power to the load, and then the first battery is stopped to supply power to the load. Therefore, the first battery and the second battery are simultaneously loaded.
  • the second battery with high power is charged for the first battery with low power, which may cause excessive current on the power supply line, heat generation and ignition of the power supply line.
  • the second is blocked first.
  • the power supply circuit and the first power supply circuit control the second battery to supply power to the load, thereby avoiding the second battery in the second charging circuit to the first charging circuit when the first battery and the second battery simultaneously supply power to the load The situation in which the first battery in the battery is charged.
  • using the first battery in the first power supply circuit to supply power to the load includes: limiting current supply current in the first power supply circuit to obtain a first current; using the first current to supply power to the load; detecting voltage across the load Whether the ratio of the voltage to the first battery reaches a preset threshold; when the ratio of the voltage across the load to the voltage of the first battery reaches a preset threshold, the current limiting of the supply current is stopped, and the supply current is used to supply power to the load.
  • the initial current in the power supply line is large due to the higher initial voltage of the first battery.
  • the current in the power supply line can be limited when the first battery starts to supply power to the load.
  • the current in the first power supply circuit is limited to obtain a first current, and the first current is used to supply power to the load, and the voltage at both ends of the load is first.
  • the ratio of the battery voltage reaches a preset threshold, the current limit of the current in the power supply line is canceled.
  • the current of the first power supply circuit is limited, a smaller current is obtained, and the load is supplied with power, and the voltage across the load continues to increase during the power supply process.
  • the voltage across the load and the voltage of the first battery reach a preset When the threshold value is 95%, the current limit is canceled. Since the voltage across the load at this time is close to the voltage of the first battery, the supply current in the first power supply circuit does not generate excessive current.
  • first controlling the second battery in the second power supply circuit to supply power to the load, and then controlling the first battery to stop supplying power to the load includes: limiting current supply current in the second power supply circuit to obtain a second current; using the second current Powering the load; detecting whether the ratio of the voltage across the load to the voltage of the second battery reaches a preset threshold; stopping the current limiting current when the ratio of the voltage across the load to the voltage of the second battery reaches a preset threshold And using the supply current to supply power to the load; after the supply current is used to supply power to the load, the first battery is controlled to stop supplying power to the load.
  • the battery When the voltage of the first battery is less than or equal to the preset voltage, when the second battery is used to supply power to the load, since the initial voltage of the second battery is higher and is far greater than the voltage across the load, the battery is switched when the battery is switched.
  • the current in is large.
  • the current in the second power supply circuit can be limited to obtain a second current, and the second current is used.
  • the load is supplied with power, and when the ratio of the voltage across the load to the second battery voltage reaches a preset threshold, the current limiting of the current in the second power supply circuit is canceled.
  • the current of the second power supply circuit is limited, a smaller current is obtained, and the load is supplied with power, and the voltage across the load continues to increase during the power supply process.
  • the ratio of the voltage across the load to the voltage of the second battery reaches 95% of the preset threshold, the current limit is canceled. Since the voltage across the load is close to the voltage of the second battery, the supply current in the second power supply circuit does not Excessive current is present.
  • the method further includes: arbitrarily selecting one target power supply circuit from the at least two power supply circuits; and detecting whether the voltage of the battery in the target power supply circuit is greater than a preset Voltage; when the voltage of the battery in the target power supply circuit is greater than the preset voltage, the target power supply circuit is used as the first power supply circuit.
  • the embodiment of the present application includes two or more power supply circuits, each of which includes a battery, and the first battery is any one of a plurality of battery groups.
  • an embodiment of a switching system of a power supply circuit includes: a load; at least two power supply circuits, at least two power supply circuits are connected in parallel, and each power supply circuit is connected in series with the load Connecting, wherein each of the power supply circuits has the same circuit composition, each of the power supply circuits includes a battery, a first switch, wherein the first end of the first switch is coupled to the positive pole of the battery, and the second end of the first switch is coupled to the load The positive poles are coupled to provide power to the load by the battery in the power supply circuit when the first switch is closed.
  • first end of the first switch is coupled to the positive pole of the battery, the first end of the first switch being directly connected to the positive pole of the battery, or between the first end of the first switch and the positive pole of the battery Also connected to other devices, the first end of the first switch is indirectly connected to the positive pole of the battery, and similarly, the second end of the first switch is coupled to the positive pole of the load, the second end of the first switch and the positive pole of the load Directly connected, or the second end of the first switch is indirectly connected to the positive pole of the load.
  • the switching system of the power supply circuit in the embodiment of the present application may include two or more power supply circuits, each of which includes a battery and a first switch, wherein the first switch is disposed on the positive pole of the battery and the positive pole of the load. Between the first switch is closed, the load is charged by the power supply circuit.
  • the switching system of the power supply circuit of the embodiment of the present application can switch the power supply to the load by another power supply circuit when the battery power is insufficient in the power supply circuit that currently supplies power to the load, that is, realize switching of the plurality of power supply circuits.
  • the first switch of the other power supply circuit when the battery voltage for powering the load is less than the preset voltage, the first switch of the other power supply circuit is first controlled to be closed, so that another power supply circuit is used to supply power to the load, and then the original power supply is controlled.
  • the first switch of the circuit is disconnected, and the purpose of continuously supplying power to the load during battery switching is achieved, thereby realizing the technical effect of seamlessly switching the power supply to the load by using multiple sets of batteries, thereby solving the problem that the multi-cell battery cannot be seamlessly Switching to technical issues with load power.
  • the first switch of the other power supply circuit Since the first switch of the other power supply circuit is first closed when the power supply circuit is switched, the other power supply circuit is used to supply power to the load, and then the first switch of the original power supply circuit is turned off. Therefore, there is two-phase power supply. When the circuit supplies power to the load at the same time, the battery with high power is charged for the battery with low power, which may cause excessive current on the power supply line, heat generation and ignition of the power supply line.
  • a second switch and a diode are disposed in each power supply circuit, and the second switch is connected in parallel with the diode, and the first switch and the parallel The second switch and the diode are connected in series, wherein the anode of the diode is coupled to the anode of the battery, and the second end of the diode is coupled to the anode of the load.
  • the second switch in the current power supply circuit is first turned off, so that the current in the current power supply circuit can only flow forward, and then the first switch and the second switch of the other power supply circuit are controlled to be closed.
  • the other power supply circuit is used to supply power to the load, and finally the first switch and the second switch of the original power supply circuit are disconnected, thereby preventing the battery with high power from being powered by the battery with low power.
  • the second switch and the diode in the power supply circuit can adopt different connection manners.
  • An optional connection manner is: the first end of the second switch is connected to the second end of the first switch, and the second end of the second switch is Connected to the positive pole of the load, the positive pole of the diode is connected to the second end of the first switch, the negative pole of the diode is connected to the positive pole of the load, and the other optional connection mode is: the first end of the second switch and the battery The positive pole is connected, the second end of the second switch is connected to the first end of the first switch, the positive pole of the diode is connected to the positive pole of the battery, and the negative pole of the diode is connected to the first end of the first switch.
  • the initial current in the power supply circuit is higher due to the higher initial voltage of the battery in the power supply circuit. Big.
  • the current in the power supply line can be limited when the power supply circuit starts to supply power to the load.
  • a third switch and a pre-charge resistor are disposed in each power supply circuit, and the third switch and the pre-charge resistor are connected in parallel, and the first switch is connected in series with the third switch and the pre-charge resistor in parallel, wherein the pre-charge resistor The first end is coupled to the positive terminal of the battery, and the second end of the pre-charge resistor is coupled to the positive electrode of the load.
  • the third switch is first turned off to connect the pre-charge resistor to the power supply circuit, The current in the power supply circuit is limited to prevent damage to the circuit caused by excessive current.
  • the third switch is Closed to cancel the current limit in the power supply circuit.
  • the third switch and the pre-charge resistor in the power supply circuit can adopt different connection manners.
  • the second switch and the diode are connected as follows: the first end of the second switch is connected with the second end of the first switch, and the second switch The second end is connected to the positive pole of the load, the positive pole of the diode is connected to the second end of the first switch, and the negative pole of the diode is connected to the positive pole of the load.
  • An optional connection manner of the third switch and the pre-charge resistor is: the first end of the third switch is connected to the second end of the second switch, and the second end of the third switch is connected to the first end of the first switch The first end of the pre-charge resistor is connected to the second end of the second switch, and the second end of the pre-charge resistor is connected to the first end of the first switch.
  • Another optional connection method is: the first end of the third switch is connected to the positive pole of the battery, and the second end of the third switch is connected to the first end of the second switch, the first end of the pre-charge resistor is The positive pole of the battery is connected, and the second end of the pre-charge resistor is connected to the first end of the second switch.
  • Another optional connection method is: the first end of the third switch is connected to the first end of the first switch, the second end of the third switch is connected to the positive pole of the load, and the first end of the pre-charge resistor is The first end of the first switch is connected, and the second end of the pre-charge resistor is connected to the positive pole of the load.
  • the second switch and the diode are connected as follows: the first end of the second switch is connected to the positive pole of the battery, and the second end of the second switch is connected to the first end of the first switch, the positive pole of the diode and the positive pole of the battery Connected, the negative pole of the diode is connected to the first end of the first switch.
  • An optional connection manner of the third switch and the pre-charge resistor is: the first end of the third switch is connected to the second end of the first switch, and the second end of the third switch is connected to the first end of the second switch The first end of the pre-charge resistor is connected to the second end of the first switch, and the second end of the pre-charge resistor is connected to the first end of the second switch.
  • Another optional connection method is: the first end of the third switch is connected to the positive pole of the battery, and the second end of the third switch is connected to the first end of the first switch, the first end of the pre-charge resistor is The positive pole of the battery is connected, and the second end of the pre-charge resistor is connected to the first end of the first switch.
  • Another optional connection method is: the first end of the third switch is connected to the second end of the second switch, and the second end of the third switch is connected to the positive pole of the load, and the first end of the pre-charge resistor is The second end of the second switch is connected, and the second end of the pre-charge resistor is connected to the positive pole of the load.
  • a fourth switch may be disposed between the negative pole of the battery and the load in the power supply circuit, and when the first switch and the fourth switch are simultaneously closed, the power supply circuit charges the load.
  • the power supply circuit switching system includes: a load, a first power supply circuit, and a second power supply circuit, where A power supply circuit and a second power supply circuit are connected in parallel, and the first power supply circuit and the second power supply circuit are respectively connected in series with the load.
  • the first power supply circuit includes a battery 1, a switch 1 (corresponding to a second switch), a diode D1, a switch 2 (corresponding to a third switch), a resistor R1 (corresponding to a precharge resistor), and a switch 3 (corresponding to a first switch)
  • the switch 4 (corresponding to the fourth switch)
  • the second power supply circuit includes the battery 2, the switch 5 (corresponding to the second switch), the diode D2, the switch 6 (corresponding to the third switch), and the resistor R2 (corresponding to the pre-charge resistor) ), switch 7 (equivalent to the first switch), switch 8 (corresponding to the fourth switch), wherein the relay K1 controls the opening and closing of the switch 1, the relay K2 controls the opening and closing of the switch 2, and the relay K3 controls the switch With the opening and closing of the switch 4, the relay K4 controls the opening and closing of the switch 5, the relay K5 controls the opening and closing of the switch 6, and the relay K6 controls the opening and closing of the switch 7 and the switch 8.
  • FIG. 3 is a flowchart of a method for switching a power supply circuit according to an embodiment of the present application. The method is applicable to the switching system shown in FIG. 2. As shown in FIG. 3, the method includes the following steps:
  • step S301 it is determined whether the voltage of the battery 1 is greater than a set value (corresponding to a preset voltage).
  • step S302 if the voltage of the battery 1 is greater than the set value, the relay K1 and the relay K3 are engaged, and the relay K2 does not operate.
  • the control relay K1 and the relay K3 are closed, and the relay K2 does not operate.
  • the switch 1, the switch 3 and the switch 4 are closed.
  • the switch 2 is disconnected, and the first power supply circuit is used to supply power to the load.
  • the current in the first power supply circuit flows through the resistor R1, and the first power supply circuit is limited by the resistor R1 to prevent the initial current in the first power supply circuit from being excessive.
  • step S303 it is determined whether the load voltage is greater than 95% of the voltage of the battery 1.
  • the load voltage is obtained, and it is determined whether the ratio of the load voltage to the voltage of the battery 1 reaches a preset threshold of 95%.
  • step S304 if the load voltage is greater than 95% of the voltage of the battery 1, the relay K2 is pulled. If the ratio of the load voltage to the voltage of the battery 1 reaches 95% of the preset threshold, the control relay K2 is pulled in. At this time, the switch 2 is closed, and the resistor R1 is short-circuited, and the current limiting circuit is cancelled.
  • step S305 it is determined whether the voltage of the battery 1 is less than or equal to the battery undervoltage value.
  • Step S306 if the voltage of the battery 1 is less than or equal to the battery undervoltage value, it is determined whether the voltage of the battery 2 is greater than a set value. When it is judged that the voltage of the battery 1 is less than or equal to the battery undervoltage value, it indicates that the battery 1 has insufficient power. It is further determined whether the voltage of the battery 2 is greater than a set value.
  • step S307 if the voltage of the battery 2 is greater than the set value, the relay K1 is turned off. If the voltage of the battery 2 is greater than the set value, it is ready to switch to supply power to the load by the second power supply circuit.
  • the control relay K1 is first turned off, and at this time, the switch 1 is turned off, and the diode D1 is connected to the first power supply circuit, in the first power supply circuit. The current can only flow out of the positive electrode of the battery 1 and cannot flow to the positive electrode of the battery 1, preventing the battery 2 from charging the battery 1.
  • step S308 the relay K4 and the relay K6 are attracted.
  • the control relay K4 and the relay K6 are re-energized.
  • the switch 5 the switch 7 and the switch 8 are closed, and the second power supply circuit supplies power to the load.
  • the relay K5 does not operate, the switch 6 remains open, the current in the second power supply circuit flows through the resistor R2, and the second power supply circuit is limited by the resistor R2 to prevent the current in the second power supply circuit from being excessively large. The line caused damage.
  • step S309 it is judged whether the load voltage is greater than 95% of the voltage of the battery 2.
  • step S310 if the load voltage is greater than 95% of the voltage of the battery 2, the relay K5 is pulled. When the ratio of the load voltage to the voltage of the battery 2 reaches a preset threshold, the control relay K5 is pulled in. At this time, the switch 6 is closed, and the resistor R2 is short-circuited, and the current limiting of the second power supply circuit is cancelled.
  • step S311 the relay K2 and the relay K3 are turned off. Finally, the control relay K2 and the relay K3 are turned off. At this time, the switch 2, the switch 3 and the switch 4 are disconnected, and the first power supply circuit is stopped to supply power to the load.
  • an embodiment of a switching method of a power supply circuit is also provided.
  • the switching method of the power supply circuit can be used in the switching system of the power supply circuit. As shown in FIG. 4, the method includes the following steps:
  • Step S402 controlling the first switch of the first power supply circuit and the fourth switch of the first power supply circuit to be closed, wherein the first power supply circuit is any one of the at least two power supply circuits, and the voltage of the battery of the first power supply circuit is greater than the pre- Set voltage
  • Step S404 after the first switch of the first power supply circuit and the fourth switch of the first power supply circuit are closed, detecting the voltage of the battery of the first power supply circuit;
  • Step S406 when detecting that the voltage of the battery of the first power supply circuit is greater than the preset voltage, maintaining the first switch of the first power supply circuit and the fourth switch of the first power supply circuit are closed;
  • Step S408 when it is detected that the voltage of the battery of the first power supply circuit is less than or equal to the preset voltage, first controlling the first switch of the second power supply circuit and the fourth switch of the second power supply circuit to be closed, and then controlling the first power supply circuit.
  • the first switch is disconnected from the fourth switch of the first power supply circuit, wherein the second power supply circuit is any one of the at least two power supply circuits different from the first power supply circuit, and the voltage of the battery of the second power supply circuit is greater than Preset voltage.
  • the first power supply circuit is any one of two or more power supply circuits in the embodiment of the present application, and the second power supply circuit is different from the first two or more power supply circuits. Any one of the power supply circuits of the power supply circuit.
  • the first switch and the fourth switch in the first power supply circuit may be controlled to be closed, and the first battery is used to supply power to the load. In the process of supplying power to the load by using the first supply circuit, as the battery power is reduced, the voltage of the battery is continuously decreased.
  • the first switch and the fourth switch in the second supply circuit are first controlled to be closed, so that the second power supply circuit supplies power to the load, and the second power supply circuit is controlled. After the first switch and the fourth switch are closed, the first switch and the fourth switch of the first power supply circuit are controlled to be disconnected to stop the power supply to the load by the first power supply circuit, thereby achieving uninterrupted power supply to the load, that is, the battery Seamless switching.
  • the first switch of the second power supply circuit and the fourth switch of the second power supply circuit are first controlled to be closed, and then the first power supply circuit is controlled.
  • the first switch and the fourth switch of the first power supply circuit are disconnected, thereby achieving the purpose of continuously supplying power to the load during battery switching, thereby realizing the technical effect of using a plurality of sets of batteries to seamlessly switch the power supply to the load, thereby solving the problem.
  • the power supply circuit includes a second switch and a diode
  • the method further includes: controlling the second switch of the first power supply circuit to be closed; Before controlling the first switch of the second power supply circuit and the fourth switch of the second power supply circuit to be closed, the method further includes: controlling the second switch of the first power supply circuit to be turned off to block the first power supply circuit and the second power supply by using the diode Circuit.
  • the first switch of the second power supply circuit and the fourth switch of the second power supply circuit are first closed, and then the first switch of the first power supply circuit and the fourth switch of the first power supply circuit are controlled to be off. Therefore, there is a case where the first power supply circuit and the second power supply circuit simultaneously supply power to the load, thereby causing a situation in which the battery in the first power supply circuit of the second power supply circuit is charged, which may cause power supply The current on the line is too large, and the power supply line generates heat and sparks.
  • the second switch and the diode are disposed in the power supply circuit, and the second switch is connected in parallel with the diode,
  • the second switch in the first power supply circuit is first turned off, so that the current in the current power supply circuit can only flow from the positive pole to the negative pole of the diode, and then the first switch and the second power supply circuit are controlled.
  • the fourth switch of the second power supply circuit is closed to supply power to the load by using the second power supply circuit, and finally the first switch of the first power supply circuit and the fourth switch of the first power supply circuit are disconnected, thereby avoiding the second power supply circuit.
  • the battery is charged when the battery in the first power supply circuit is charged.
  • the power supply circuit includes a third switch and a pre-charge resistor.
  • the method further includes: controlling the third switch of the first power supply circuit Disconnecting; detecting whether the ratio of the voltage across the load to the voltage of the battery in the first power supply circuit reaches a preset threshold; when the ratio of the voltage across the load to the voltage of the battery in the first power supply circuit reaches a first threshold, the control is first The third switch of the power supply circuit is closed.
  • a third switch and a pre-charge resistor may be disposed in the power supply circuit, and the third switch is connected in parallel with the pre-charge resistor to control the first switch of the first power supply circuit and Before the fourth switch of the first power supply circuit is closed, the third switch is first turned off to limit the current in the first power supply circuit, and the ratio of the voltage across the load to the voltage of the battery in the first power supply circuit is pre- When the threshold is set, the third switch is controlled to be closed to cancel the current limit of the current in the first power supply circuit.
  • the method before controlling the first switch of the second power supply circuit and the fourth switch of the second power supply circuit to be closed, the method further includes: controlling the third switch of the second power supply circuit to be turned off; and controlling the second power supply circuit After the switch and the fourth switch of the second power supply circuit are closed, the method further includes: detecting whether the voltage between the voltage across the load and the voltage of the battery in the second power supply circuit reaches a preset threshold; and the voltage across the load and the second power supply circuit Controlling the third switch of the second power supply circuit to be closed when the voltage ratio of the battery reaches a preset threshold; controlling the first switch of the first power supply circuit and the first power supply circuit after controlling the third switch of the second power supply circuit to be closed The four switches are open.
  • the third switch can be controlled to be turned off when the power supply circuit is switched, to limit the current in the second power supply circuit through the pre-charge resistor, and to load two
  • the third switch is controlled to be closed, and the current limiting of the current in the second power supply circuit is cancelled.
  • an embodiment of the present application further provides a storage medium, where the storage medium includes a stored program, wherein, when the program is running, controlling a device in which the storage medium is located to perform the battery switching described above And the switching method of the power supply circuit.
  • an embodiment of the present application further provides a processor, where a processor is configured to run a program, wherein the method for performing battery switching and the method for switching a power supply circuit are executed when the program is running.
  • FIG. 5 is a schematic diagram of an optional battery switching device according to an embodiment of the present application. As shown in FIG. 5, the device includes:
  • the first power supply unit 510 is configured to supply power to the load by using the first battery in the first power supply circuit, wherein the first power supply circuit is any one of the plurality of power supply circuits, and the circuit composition of each of the power supply circuits is the same, the first battery The voltage is greater than the preset voltage;
  • the detecting unit 520 is configured to detect a voltage of the first battery during the power supply of the first battery to the load;
  • the second power supply unit 530 is configured to continue to use the first battery to supply power to the load when detecting that the voltage of the first battery is greater than the preset voltage;
  • the third power supply unit 540 is configured to first control the second battery in the second power supply circuit to supply power to the load when the voltage of the first battery is less than or equal to the preset voltage, and then control the first battery to stop supplying power to the load, where
  • the second power supply circuit is any one of the plurality of power supply circuits different from the first power supply circuit, and the voltage of the second battery is greater than the preset voltage.
  • the first battery is any one of the plurality of batteries in the embodiment of the present application.
  • the first battery may be used to supply power to the load.
  • the voltage of the first battery is continuously decreased.
  • the second battery is used to control the load, and the second battery is the other battery. Any one of the batteries having a voltage greater than the preset voltage is powered by the second battery. Then, the first battery is stopped to supply power to the load to realize uninterrupted power supply to the load, that is, seamless switching of the battery.
  • the first power supply unit is configured to supply power to the load by using the first battery in the first power supply circuit, wherein the first power supply circuit is any one of the plurality of power supply circuits, and each of the power supplies The circuit has the same circuit composition, the voltage of the first battery is greater than the preset voltage; the detecting unit is configured to detect the voltage of the first battery during the process of supplying power to the load by the first battery; and the second power supply unit is configured to detect When the voltage of the battery is greater than the preset voltage, the first battery continues to be used to supply power to the load; and the third power supply unit is configured to first control the second power supply circuit when detecting that the voltage of the first battery is less than or equal to the preset voltage.
  • the second battery supplies power to the load, and then controls the first battery to stop supplying power to the load.
  • the second power supply circuit is any one of the plurality of power supply circuits different from the first power supply circuit, and the voltage of the second battery is greater than the preset voltage.
  • the second battery is first controlled to supply power to the load, and then the first battery is controlled to load.
  • the electric power achieves the purpose of continuously supplying power to the load during battery switching, thereby realizing the technical effect of seamlessly switching the power supply to the load by using multiple sets of batteries, thereby solving the technology that cannot seamlessly switch to the load through multiple sets of batteries. problem.
  • the device further includes: a blocking unit, configured to supply the second battery to the load in the second power supply circuit Before the electricity is turned on, the second power supply circuit and the first power supply circuit are blocked to prevent the second power supply circuit from supplying power to the first power supply circuit.
  • a blocking unit configured to supply the second battery to the load in the second power supply circuit Before the electricity is turned on, the second power supply circuit and the first power supply circuit are blocked to prevent the second power supply circuit from supplying power to the first power supply circuit.
  • the second battery Since the voltage of the first battery is less than or equal to the preset voltage, the second battery is first controlled to supply power to the load, and then the first battery is stopped to supply power to the load. Therefore, the first battery and the second battery are simultaneously loaded.
  • the second battery with high power is charged for the first battery with low power, which may cause excessive current on the power supply line, heat generation and ignition of the power supply line.
  • the second is blocked first.
  • the power supply circuit and the first power supply circuit control the second battery to supply power to the load, thereby avoiding the second battery in the second charging circuit to the first charging circuit when the first battery and the second battery simultaneously supply power to the load The situation in which the first battery in the battery is charged.
  • the disclosed technical contents may be implemented in other manners.
  • the device embodiments described above are only schematic.
  • the division of the unit may be a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, unit or module, and may be electrical or otherwise.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application, in essence or the contribution to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. , including a number of instructions to make one
  • the computer device (which may be a personal computer, server or network device, etc.) performs all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk, and the like. .

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Abstract

A battery switching method and apparatus, and a switching system and method for a power supply circuit. The method comprises: supplying power to a load using a first battery of a first power supply circuit, wherein the first power supply circuit is any one of at least two power supply circuits, and the voltage across the first battery is greater than a pre-set voltage (S102); detecting the voltage across the first battery in the process of supplying power to the load by the first battery (S104); continuing to supply power to the load using the first battery when it is detected that the voltage across the first battery is greater than the pre-set voltage (S106); and when it is detected that the voltage across the first battery is less than or equal to the pre-set voltage, firstly controlling a second battery of a second power supply circuit to supply power to the load, and then controlling the first battery to stop supplying power to the load (S108). The method solves the technical problem that the load cannot be powered by seamless switching between a plurality of batteries.

Description

电池切换的方法和装置以及供电电路的切换***和方法Method and device for switching battery and switching system and method for power supply circuit
本申请要求于2017年04月17日提交中国专利局、申请号为201710249811.9、发明名称为“电池切换的方法和装置以及供电电路的切换***和方法”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。The present application claims the priority of the Chinese Patent Application filed on Apr. 17, 2017, the Chinese Patent Office, the application No. This is incorporated herein by reference.
技术领域Technical field
本申请涉及电路领域,具体而言,涉及一种电池切换的方法和装置以及供电电路的切换***和方法。The present application relates to the field of circuits, and in particular, to a method and apparatus for battery switching and a switching system and method for a power supply circuit.
背景技术Background technique
目前,电动汽车由于其具有环保、节能的特点,越来越成为政府大力提倡的交通工具,尤其在大城市,为了减少环境污染,电动汽车的数量成爆发式增长。然而电动汽车发展必然要解决电池续航里程问题,通常电动汽车使用一整组电池,电动汽车电池电量不足时要依靠寻找充电桩来充电,但目前国内充电桩并不是非常普遍,尤其中小型城市,充电桩的数量更为稀少。充电桩的不普遍,充电不方便,是导致电动汽车发展的最大阻力之一。At present, electric vehicles are becoming more and more advocated by the government because of their environmental protection and energy-saving characteristics. Especially in large cities, in order to reduce environmental pollution, the number of electric vehicles has exploded. However, the development of electric vehicles must solve the problem of battery life. Usually, electric vehicles use a whole set of batteries. When the battery of electric vehicles is low, it depends on finding charging piles to charge. However, domestic charging piles are not very common at present, especially in small and medium-sized cities. The number of charging piles is even rarer. Charging piles are not common and charging is inconvenient, which is one of the biggest obstacles to the development of electric vehicles.
电池切换技术通过将电池分组,实现每组电池单独充放电,将电池切换技术应用于电动汽车领域,利用多块电池为电动汽车,可实现当某一组电池电量用完后,切换为下一组电池供电,而每组电池可以分别取下,进行家庭式充电。The battery switching technology realizes that each group of batteries is separately charged and discharged by grouping the batteries, and the battery switching technology is applied to the electric vehicle field, and the plurality of batteries are used as electric vehicles, so that when a certain group of batteries is used up, the battery is switched to the next one. The battery pack is powered, and each battery pack can be removed separately for home charging.
然而,目前电池切换技术无法做到真正的无缝切换,当两组电池切换的时候需要关机,或者令负载断电。However, current battery switching technology cannot achieve true seamless switching. When two sets of batteries are switched, it needs to be shut down or the load is powered off.
针对上述的问题,目前尚未提出有效的解决方案。In response to the above problems, no effective solution has been proposed yet.
发明内容Summary of the invention
本申请实施例提供了一种电池切换的方法和装置以及供电电路的切换***和方法,以至少解决无法通过多组电池无缝切换为负载供电的技术问题。The embodiments of the present application provide a battery switching method and apparatus, and a power supply circuit switching system and method, to at least solve the technical problem that the multiple switches cannot be seamlessly switched to the load.
根据本申请实施例的一个方面,提供了一种电池的切换方法,包括:采用第一供电电路中第一电池对负载进行供电,其中,所述第一供电电路为至少两个供电电路中任意一个,所述第一电池的电压大于预设电压;在所述第一电池对所述负载供电的过 程中,检测所述第一电池的电压;当检测出所述第一电池的电压大于所述预设电压时,继续采用所述第一电池对所述负载供电;当检测出所述第一电池的电压小于或者等于所述预设电压时,先控制第二供电电路中第二电池对所述负载供电,再控制所述第一电池停止对所述负载供电,其中,所述第二供电电路为所述至少两个供电电路中不同于所述第一供电电路的任意一个供电电路,所述第二电池的电压大于所述预设电压。According to an aspect of the embodiments of the present application, a method for switching a battery includes: supplying power to a load by using a first battery in a first power supply circuit, wherein the first power supply circuit is any of at least two power supply circuits One, the voltage of the first battery is greater than a preset voltage; and the first battery is powered by the load During the process, detecting the voltage of the first battery; when detecting that the voltage of the first battery is greater than the preset voltage, continuing to use the first battery to supply power to the load; when detecting the first When the voltage of the battery is less than or equal to the preset voltage, first controlling the second battery in the second power supply circuit to supply power to the load, and then controlling the first battery to stop supplying power to the load, wherein the second power supply The circuit is any one of the at least two power supply circuits different from the first power supply circuit, and the voltage of the second battery is greater than the preset voltage.
进一步地,在控制第二供电电路中第二电池对所述负载供电之前,所述方法还包括:阻断所述第二供电电路和所述第一供电电路,以阻止所述第二供电电路向所述第一供电电路供电。Further, before controlling the second battery to supply power to the load in the second power supply circuit, the method further includes: blocking the second power supply circuit and the first power supply circuit to block the second power supply circuit Powering the first power supply circuit.
进一步地,采用第一供电电路中第一电池对负载进行供电包括:对所述第一供电电路中供电电流进行限流,得到第一电流;利用所述第一电流对所述负载进行供电;检测所述负载两端的电压与所述第一电池的电压的比例是否达到预设阈值;在所述负载两端的电压与所述第一电池的电压的比例达到所述预设阈值时,停止对所述供电电流的限流,并利用所述供电电流对所述负载供电。Further, the power supply to the load by the first battery in the first power supply circuit includes: limiting a current supply current in the first power supply circuit to obtain a first current; and supplying power to the load by using the first current; Detecting whether a ratio of a voltage across the load to a voltage of the first battery reaches a preset threshold; when a ratio of a voltage across the load to a voltage of the first battery reaches the preset threshold, stopping The current of the supply current is limited, and the load is used to supply power to the load.
进一步地,先控制第二供电电路中第二电池对所述负载供电,再控制所述第一电池停止对所述负载供电包括:对所述第二供电电路中供电电流进行限流,得到第二电流;利用所述第二电流对所述负载进行供电;检测所述负载两端的电压与所述第二电池的电压的比例是否达到所述预设阈值;在所述负载两端的电压与所述第二电池的电压的比例达到所述预设阈值时,停止对所述供电电流的限流,并利用所述供电电流对所述负载供电;在利用所述供电电流对所述负载供电之后,控制所述第一电池停止对所述负载供电。Further, first controlling the second battery in the second power supply circuit to supply power to the load, and then controlling the first battery to stop supplying power to the load includes: limiting current supply current in the second power supply circuit, to obtain a Two currents; supplying power to the load by using the second current; detecting whether a ratio of a voltage across the load to a voltage of the second battery reaches the preset threshold; a voltage and a voltage across the load Stopping the current limit of the supply current when the ratio of the voltage of the second battery reaches the preset threshold, and supplying power to the load by using the supply current; after powering the load by using the supply current Controlling the first battery to stop supplying power to the load.
进一步地,在采用第一供电电路中第一电池对负载进行供电之前,所述方法还包括:从所述至少两个供电电路中任意选择一个目标供电电路;检测所述目标供电电路中电池的电压是否大于预设电压;在所述目标供电电路中电池的电压大于所述预设电压时,将所述目标供电电路作为所述第一供电电路。Further, before the power is supplied to the load by the first battery in the first power supply circuit, the method further includes: arbitrarily selecting one target power supply circuit from the at least two power supply circuits; detecting the battery in the target power supply circuit Whether the voltage is greater than a preset voltage; when the voltage of the battery in the target power supply circuit is greater than the preset voltage, the target power supply circuit is used as the first power supply circuit.
根据本申请实施例的另一方面,还提供了一种供电电路的切换***,包括:负载;至少两个供电电路,所述至少两个供电电路之间并联连接,每一个所述供电电路与所述负载串联连接,其中,每一个所述供电电路的电路组成相同,每一个所述供电电路包括电池、第一开关,其中所述第一开关的第一端与所述电池的正极相耦合,所述第一开关的第二端与所述负载的正极相耦合,在所述第一开关闭合时,由所述供电电路中的所述电池为所述负载供电,所述供电电路还包括:第二开关和二极管,所述第二开关与所述二极管并联连接,所述第一开关与并联后的所述第二开关和所述二极管串联,其中,所述二极管的正极与所述电池的正极相耦合,所述二极管的第二端与所述 负载的正极相耦合,其中,在进行供电电路的切换时,先将当前供电电路中的第二开关断开,然后控制另外一个供电电路的第一开关和第二开关闭合,以采用另外一个供电电路对负载供电,最后再将原供电电路的第一开关和第二开关断开。According to another aspect of the embodiments of the present application, a switching system of a power supply circuit includes: a load; at least two power supply circuits, wherein the at least two power supply circuits are connected in parallel, and each of the power supply circuits and The load is connected in series, wherein each of the power supply circuits has the same circuit composition, and each of the power supply circuits includes a battery and a first switch, wherein a first end of the first switch is coupled to a positive pole of the battery The second end of the first switch is coupled to the positive pole of the load, and when the first switch is closed, the battery is powered by the battery in the power supply circuit, and the power supply circuit further includes a second switch and a diode, the second switch being connected in parallel with the diode, the first switch being connected in series with the second switch in parallel and the diode, wherein a positive pole of the diode and the battery a positive pole coupled to the second end of the diode The positive pole of the load is coupled, wherein when the switching of the power supply circuit is performed, the second switch in the current power supply circuit is first turned off, and then the first switch and the second switch of the other power supply circuit are controlled to be closed to use another power supply. The circuit supplies power to the load, and finally disconnects the first switch and the second switch of the original power supply circuit.
进一步地,所述供电电路还包括:第三开关和预充电阻,所述第三开关与所述预充电阻并联,所述第一开关与并联后的所述第三开关和所述预充电阻串联,其中,所述预充电阻的第一端与所述电池的正极相耦合,所述预充电阻的第二端与所述负载的正极相耦合。Further, the power supply circuit further includes: a third switch and a pre-charge resistor, the third switch is connected in parallel with the pre-charge resistor, the first switch and the third switch after parallel connection and the pre-charge A resistor is connected in series, wherein a first end of the pre-charge resistor is coupled to a positive terminal of the battery, and a second end of the pre-charge resistor is coupled to a positive electrode of the load.
进一步地,所述供电电路还包括:第四开关,所述第四开关的第一端与所述电池的负极相连接,所述第四开关的第二端与所述负载的负极相连接,在所述第一开关和所述第四开关闭合时,由所述供电电路中的所述电池为所述负载供电。Further, the power supply circuit further includes: a fourth switch, a first end of the fourth switch is connected to a negative pole of the battery, and a second end of the fourth switch is connected to a negative pole of the load, The battery is powered by the battery in the power supply circuit when the first switch and the fourth switch are closed.
根据本申请实施例的另一方面,还提供了一种用于上述切换***的供电电路的切换方法,包括:控制第一供电电路的第一开关和所述第一供电电路的第四开关闭合,其中,所述第一供电电路为所述至少两个供电电路中的任意一个,所述第一供电电路的电池的电压大于预设电压;在所述第一供电电路的第一开关和所述第一供电电路的第四开关闭合之后,检测所述第一供电电路的电池的电压;当检测出所述第一供电电路的电池的电压大于所述预设电压时,保持所述第一供电电路的第一开关和所述第一供电电路的第四开关闭合;当检测出所述第一供电电路的电池的电压小于或者等于所述预设电压时,先控制第二供电电路的第一开关和所述第二供电电路的第四开关闭合,然后再控制所述第一供电电路的第一开关和所述第一供电电路的第四开关断开,其中,所述第二供电电路为所述至少两个供电电路中不同于所述第一供电电路的任意一个供电电路,所述第二供电电路的电池的电压大于所述预设电压。According to another aspect of the embodiments of the present application, there is also provided a switching method for a power supply circuit of the above switching system, comprising: controlling a first switch of the first power supply circuit and a fourth switch of the first power supply circuit to be closed The first power supply circuit is any one of the at least two power supply circuits, the voltage of the battery of the first power supply circuit is greater than a preset voltage; the first switch and the first power supply circuit After the fourth switch of the first power supply circuit is closed, detecting the voltage of the battery of the first power supply circuit; and when detecting that the voltage of the battery of the first power supply circuit is greater than the preset voltage, maintaining the first The first switch of the power supply circuit and the fourth switch of the first power supply circuit are closed; when detecting that the voltage of the battery of the first power supply circuit is less than or equal to the preset voltage, first controlling the second power supply circuit a switch and a fourth switch of the second power supply circuit are closed, and then the first switch of the first power supply circuit and the fourth switch of the first power supply circuit are controlled to be disconnected, wherein Said second power supply circuit to a power supply circuit of any of said at least two power supply circuit is different from the first power supply circuit, the voltage of the battery power supply circuit is greater than the second predetermined voltage.
进一步地,所述供电电路包括第二开关和二极管,控制第一供电电路的第一开关和所述第一供电电路的第四开关闭合之前,所述方法还包括:控制所述第一供电电路的第二开关闭合;在控制第二供电电路的第一开关和所述第二供电电路的第四开关闭合之前,所述方法还包括:控制所述第一供电电路的第二开关断开,以利用所述二极管阻断所述第一供电电路和所述第二供电电路。Further, the power supply circuit includes a second switch and a diode, and before the first switch of the first power supply circuit and the fourth switch of the first power supply circuit are closed, the method further includes: controlling the first power supply circuit The second switch is closed; before the first switch controlling the second power supply circuit and the fourth switch of the second power supply circuit are closed, the method further comprises: controlling the second switch of the first power supply circuit to be disconnected, The first power supply circuit and the second power supply circuit are blocked by the diode.
进一步地,所述供电电路包括第三开关和预充电阻,在控制第一供电电路的第一开关和所述第一供电电路的第四开关闭合之前,所述方法还包括:控制所述第一供电电路的第三开关断开;检测所述负载两端的电压与所述第一供电电路中电池的电压的比例是否达到预设阈值;在所述负载两端的电压与所述第一供电电路中电池的电压的比例达到所述第一阈值时,控制所述第一供电电路的第三开关闭合。 Further, the power supply circuit includes a third switch and a pre-charge resistor, and before the first switch that controls the first power supply circuit and the fourth switch of the first power supply circuit are closed, the method further includes: controlling the A third switch of a power supply circuit is turned off; detecting whether a ratio of a voltage across the load to a voltage of a battery in the first power supply circuit reaches a preset threshold; a voltage across the load and the first power supply circuit When the ratio of the voltage of the middle battery reaches the first threshold, the third switch of the first power supply circuit is controlled to be closed.
进一步地,在控制第二供电电路的第一开关和所述第二供电电路的第四开关闭合之前,所述方法还包括:控制所述第二供电电路的第三开关断开;在控制第二供电电路的第一开关和所述第二供电电路的第四开关闭合之后,所述方法还包括:检测所述负载两端的电压与所述第二供电电路中电池的电压比例是否达到所述预设阈值;在所述负载两端的电压与所述第二供电电路中电池的电压比例达到所述预设阈值时,控制所述第二供电电路的第三开关闭合;在控制所述第二供电电路的第三开关闭合之后,控制所述第一供电电路的第一开关和所述第一供电电路的第四开关断开。Further, before controlling the first switch of the second power supply circuit and the fourth switch of the second power supply circuit to be closed, the method further includes: controlling the third switch of the second power supply circuit to be turned off; After the first switch of the two power supply circuits and the fourth switch of the second power supply circuit are closed, the method further includes: detecting whether the voltage between the voltage across the load and the voltage of the battery in the second power supply circuit reaches the stated a preset threshold; when the voltage between the voltage across the load and the voltage of the battery in the second power supply circuit reaches the preset threshold, controlling the third switch of the second power supply circuit to be closed; controlling the second After the third switch of the power supply circuit is closed, the first switch that controls the first power supply circuit and the fourth switch of the first power supply circuit are turned off.
根据本申请实施例的另一方面,还提供了一种电池切换的装置,包括:第一供电单元,用于采用第一供电电路中第一电池对负载进行供电,其中,所述第一供电电路为多个供电电路中任意一个,每一个所述供电电路的电路组成相同,所述第一电池的电压大于预设电压;检测单元,用于在所述第一电池对所述负载供电的过程中,检测所述第一电池的电压;第二供电单元,用于在检测出所述第一电池的电压大于所述预设电压时,继续采用所述第一电池对所述负载供电;第三供电单元,用于在检测出所述第一电池的电压小于或者等于所述预设电压时,先控制第二供电电路中第二电池对所述负载供电,再控制所述第一电池停止对所述负载供电,其中,所述第二供电电路为所述多个供电电路中不同于所述第一供电电路的任意一个供电电路,所述第二电池的电压大于所述预设电压。According to another aspect of the embodiments of the present application, there is also provided a battery switching device, comprising: a first power supply unit, configured to supply power to a load by using a first battery in a first power supply circuit, wherein the first power supply The circuit is any one of a plurality of power supply circuits, each of the power supply circuits has the same circuit composition, the voltage of the first battery is greater than a preset voltage, and the detecting unit is configured to supply power to the load at the first battery During the process, the voltage of the first battery is detected; the second power supply unit is configured to continue to use the first battery to supply power to the load when detecting that the voltage of the first battery is greater than the preset voltage; a third power supply unit, configured to first control a second battery in the second power supply circuit to supply power to the load, and then control the first battery, when detecting that the voltage of the first battery is less than or equal to the preset voltage Stop supplying power to the load, wherein the second power supply circuit is any one of the plurality of power supply circuits different from the first power supply circuit, and the second battery is powered Greater than the preset voltage.
进一步地,所述装置还包括:阻断单元,用于在控制第二供电电路中第二电池对所述负载供电之前,阻断所述第二供电电路和所述第一供电电路,以阻止所述第二供电电路向所述第一供电电路供电。Further, the device further includes: a blocking unit, configured to block the second power supply circuit and the first power supply circuit to block the second battery after controlling the second power supply circuit to supply power to the load The second power supply circuit supplies power to the first power supply circuit.
根据本申请的另一方面,提供了一种存储介质,所述存储介质包括存储的程序,其中,在所述程序运行时控制所述存储介质所在设备执行上述所述的电池切换的方法和供电电路的切换方法。According to another aspect of the present application, a storage medium is provided, the storage medium including a stored program, wherein a method of controlling a device in which the storage medium is located to perform the battery switching described above and a power supply when the program is running Circuit switching method.
根据本申请的另一方面,提供了一种处理器,所述处理器用于运行程序,其中,所述程序运行时执行上述所述的电池切换的方法和供电电路的切换方法。According to another aspect of the present application, there is provided a processor for operating a program, wherein the program is executed while the battery switching method and the switching method of the power supply circuit are performed.
在本申请实施例中,采用如下方法:采用第一供电电路中第一电池对负载进行供电,所述第一供电电路为至少两个供电电路中任意一个,所述第一电池的电压大于预设电压;在所述第一电池对所述负载供电的过程中,检测所述第一电池的电压;当检测出所述第一电池的电压大于所述预设电压时,继续采用所述第一电池对所述负载供电;当检测出所述第一电池的电压小于或者等于所述预设电压时,先控制第二供电电路中第二电池对所述负载供电,再控制所述第一电池停止对所述负载供电,其中,所述第二供电电路为所述多个供电电路中不同于所述第一供电电路的任意一个供电电路, 所述第二电池的电压大于所述预设电压,通过在第一电池的电压小于或者等于预设电压时,先控制第二电池对负载供电,再控制第一电池对负载供电,达到了在进行电池切换时持续为负载供电的目的,从而实现了利用多组电池无缝切换地为负载供电的技术效果,进而解决了无法通过多组电池无缝切换为负载供电的技术问题。In the embodiment of the present application, the method is as follows: the first battery is used to supply power to the load, and the first power supply circuit is any one of the at least two power supply circuits, and the voltage of the first battery is greater than Setting a voltage; detecting, during the power supply of the first battery, the voltage of the first battery; and when detecting that the voltage of the first battery is greater than the preset voltage, continuing to adopt the a battery powers the load; when detecting that the voltage of the first battery is less than or equal to the preset voltage, first controlling a second battery in the second power supply circuit to supply power to the load, and then controlling the first The battery stops supplying power to the load, wherein the second power supply circuit is any one of the plurality of power supply circuits different from the first power supply circuit, The voltage of the second battery is greater than the preset voltage. When the voltage of the first battery is less than or equal to the preset voltage, the second battery is first controlled to supply power to the load, and then the first battery is controlled to supply power to the load. The purpose of continuously supplying power to the load during battery switching is to achieve the technical effect of seamlessly switching the power supply to the load by using multiple sets of batteries, thereby solving the technical problem that the multi-group battery cannot be seamlessly switched to the load.
附图说明DRAWINGS
此处所说明的附图用来提供对本申请的进一步理解,构成本申请的一部分,本申请的示意性实施例及其说明用于解释本申请,并不构成对本申请的不当限定。在附图中:The drawings described herein are intended to provide a further understanding of the present application, and are intended to be a part of this application. In the drawing:
图1是根据本申请实施例的一种可选的电池的切换方法的流程图;1 is a flow chart of an alternative battery switching method according to an embodiment of the present application;
图2是根据本申请实施例的一种可选的供电电路的切换***的示意图;2 is a schematic diagram of an alternative power supply circuit switching system according to an embodiment of the present application;
图3是根据本申请实施例的一种可选的供电电路的切换方法的流程图;3 is a flowchart of a method for switching an optional power supply circuit according to an embodiment of the present application;
图4是根据本申请实施例的一种可选的供电电路的切换方法的流程图;4 is a flowchart of a method for switching an optional power supply circuit according to an embodiment of the present application;
图5是根据本申请实施例的一种可选的电池的切换装置的示意图。FIG. 5 is a schematic diagram of an alternative battery switching device in accordance with an embodiment of the present application.
具体实施方式detailed description
为了使本技术领域的人员更好地理解本申请方案,下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本申请一部分的实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都应当属于本申请保护的范围。The technical solutions in the embodiments of the present application are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present application. It is an embodiment of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope shall fall within the scope of the application.
需要说明的是,本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换,以便这里描述的本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外,术语“包括”和“具有”以及他们的任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或单元的过程、方法、***、产品或设备不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or order. It is to be understood that the data so used may be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in a sequence other than those illustrated or described herein. In addition, the terms "comprises" and "comprises" and "the" and "the" are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to Those steps or units may include other steps or units not explicitly listed or inherent to such processes, methods, products or devices.
根据本申请实施例,提供了一种电池的切换方法的方法实施例,需要说明的是,在附图的流程图示出的步骤可以在诸如一组计算机可执行指令的计算机***中执行,并且,虽然在流程图中示出了逻辑顺序,但是在某些情况下,可以以不同于此处的顺 序执行所示出或描述的步骤。According to an embodiment of the present application, there is provided a method embodiment of a method of switching a battery, and it is to be noted that the steps illustrated in the flowchart of the accompanying drawings may be performed in a computer system such as a set of computer executable instructions, and Although the logical order is shown in the flowchart, in some cases, it may be different from here. The steps shown or described are performed sequentially.
图1是根据本申请实施例的一种可选的电池的切换方法的流程图,如图1所示,该方法包括如下步骤:FIG. 1 is a flowchart of an alternative battery switching method according to an embodiment of the present application. As shown in FIG. 1 , the method includes the following steps:
步骤S102,采用第一供电电路中第一电池对负载进行供电,其中,第一供电电路为至少两个供电电路中任意一个,第一电池的电压大于预设电压;Step S102: The first battery is powered by the first battery in the first power supply circuit, wherein the first power supply circuit is any one of the at least two power supply circuits, and the voltage of the first battery is greater than a preset voltage;
步骤S104,在第一电池对负载供电的过程中,检测第一电池的电压;Step S104, detecting a voltage of the first battery during the process of supplying power to the load by the first battery;
步骤S106,当检测出第一电池的电压大于预设电压时,继续采用第一电池对负载供电;Step S106, when it is detected that the voltage of the first battery is greater than the preset voltage, continue to use the first battery to supply power to the load;
步骤S108,当检测出第一电池的电压小于或者等于预设电压时,先控制第二供电电路中第二电池对负载供电,再控制第一电池停止对负载供电,其中,第二供电电路为至少两个供电电路中不同于第一供电电路的任意一个供电电路,第二电池的电压大于预设电压。Step S108, when detecting that the voltage of the first battery is less than or equal to the preset voltage, first controlling the second battery in the second power supply circuit to supply power to the load, and then controlling the first battery to stop supplying power to the load, wherein the second power supply circuit is The power of the second battery is greater than the preset voltage in any one of the at least two power supply circuits different from the first power supply circuit.
本申请实施例提供的电池的切换方法可以用于两组或者两组以上电池的切换,在当前对负载进行供电的电池电压下降到一定的程度时,切换到另外的一组电池,由另外一组电池为负载进行供电,并且在电池的切换过程中保持不间断供电,实现对电池的无缝切换。The switching method of the battery provided by the embodiment of the present application can be used for switching between two or more sets of batteries. When the current battery voltage for supplying power to the load drops to a certain extent, the battery is switched to another group of batteries, and the other one is switched to another battery. The battery pack supplies power to the load and maintains uninterrupted power supply during battery switching to achieve seamless switching of the battery.
在本申请实施例中,每组电池都设置在一个供电电路中,第一电池设置在第一供电电路中,第二电池设置在的第二供电电路中,第一电池不同于第二电池,第一供电电路不同于第二供电电路,本申请实施例中还可以包含除第一电池和第二电池以外的其它电池,本申请实施例的电池的切换方法,可以用第一电池、第二电池以及本申请实施例包括的其它电池之间的切换。In the embodiment of the present application, each group of batteries is disposed in a power supply circuit, the first battery is disposed in the first power supply circuit, and the second battery is disposed in the second power supply circuit, the first battery is different from the second battery. The first power supply circuit is different from the second power supply circuit. The battery in the embodiment of the present application may further include a battery other than the first battery and the second battery. Switching between the battery and other batteries included in embodiments of the present application.
可选地,第一电池为本申请实施例中多组电池中的任意一组电池,当第一电池的大于预设电压时,可以采用第一电池对负载进行供电。在采用第一电池为负载进行供电的过程中,随着第一电池电量的减少,第一电池的电压会不断下降。对第一电池的电压进行实时检测,在检测到第一电池的电压大于预设电压时,继续由第一电池对负载进行供电,当检测到第一电池的电压小于或者等于预设电压时,第一电池的电量不足,此时,先控制由第二电池对负载进行供电,第二电池为其它电池中,任意一组电压大于预设电压的电池,在由第二电池对负载进行供电之后,再控制第一电池停止对负载进行供电,以实现对负载的不间断供电,即电池的无缝切换。Optionally, the first battery is any one of the plurality of batteries in the embodiment of the present application. When the first battery is greater than the preset voltage, the first battery may be used to supply power to the load. During the process of powering the load using the first battery, as the first battery power is reduced, the voltage of the first battery is continuously decreased. Performing real-time detection on the voltage of the first battery, and when detecting that the voltage of the first battery is greater than the preset voltage, continuing to supply power to the load by the first battery, when detecting that the voltage of the first battery is less than or equal to the preset voltage, The first battery has insufficient power. At this time, the second battery is used to control the load, and the second battery is the other battery. Any one of the batteries having a voltage greater than the preset voltage is powered by the second battery. Then, the first battery is stopped to supply power to the load to realize uninterrupted power supply to the load, that is, seamless switching of the battery.
在本申请实施例中,采用如下方法:采用第一供电电路中第一电池对负载进行供 电,第一供电电路为至少两个供电电路中任意一个,第一电池的电压大于预设电压;在第一电池对负载供电的过程中,检测第一电池的电压;当检测出第一电池的电压大于预设电压时,继续采用第一电池对负载供电;当检测出第一电池的电压小于或者等于预设电压时,先控制第二供电电路中第二电池对负载供电,再控制第一电池停止对负载供电,其中,第二供电电路为多个供电电路中不同于第一供电电路的任意一个供电电路,第二电池的电压大于预设电压,通过在第一电池的电压小于或者等于预设电压时,先控制第二电池对负载供电,再控制第一电池对负载供电,达到了在进行电池切换时持续为负载供电的目的,从而实现了利用多组电池无缝切换地为负载供电的技术效果,进而解决了无法通过多组电池无缝切换为负载供电的技术问题。In the embodiment of the present application, the following method is adopted: using the first battery in the first power supply circuit to supply the load The first power supply circuit is any one of the at least two power supply circuits, and the voltage of the first battery is greater than a preset voltage; during the power supply of the first battery to the load, the voltage of the first battery is detected; when the first battery is detected When the voltage is greater than the preset voltage, the first battery is continuously used to supply power to the load; when the voltage of the first battery is detected to be less than or equal to the preset voltage, the second battery in the second power supply circuit is first controlled to supply power to the load, and then the control is performed. A battery stops supplying power to the load, wherein the second power supply circuit is any one of the plurality of power supply circuits different from the first power supply circuit, and the voltage of the second battery is greater than a preset voltage, and the voltage of the first battery is less than or When the voltage is equal to the preset voltage, the second battery is first controlled to supply power to the load, and then the first battery is controlled to supply power to the load, thereby achieving the purpose of continuously supplying power to the load during battery switching, thereby achieving seamless switching by using multiple sets of batteries. The technical effect of the load supply solves the technical problem that the battery cannot be seamlessly switched to the load through multiple sets of batteries.
可选地,在控制第二供电电路中第二电池对负载供电之前,方法还包括:阻断第二供电电路和第一供电电路,以阻止第二供电电路向第一供电电路供电。Optionally, before controlling the second battery to supply power to the load in the second power supply circuit, the method further includes: blocking the second power supply circuit and the first power supply circuit to prevent the second power supply circuit from supplying power to the first power supply circuit.
由于在第一电池的电压小于或者等于预设电压时,先控制第二电池对负载进行供电,再控制第一电池停止对负载进行供电,因此,存在第一电池和第二电池同时对负载进行供电的情况,从而造成电量高的第二电池为电量低的第一电池进行充电的情况发生,进而可能导致供电线路上电流过大,供电线路发热、打火等现象的发生。为了避免出现电量高的电池为电量低的电池充电的情况发生,可选地,当第一电池的电压小于或者等于预设电压,需要切换为由第二电池进行供电时,先阻断第二供电电路与第一供电电路,再控制第二电池对负载进行供电,从而避免了在第一电池和第二电池同时对负载进行供电时,第二充电电路中的第二电池对第一充电电路中的第一电池进行充电的情况发生。Since the voltage of the first battery is less than or equal to the preset voltage, the second battery is first controlled to supply power to the load, and then the first battery is stopped to supply power to the load. Therefore, the first battery and the second battery are simultaneously loaded. In the case of power supply, the second battery with high power is charged for the first battery with low power, which may cause excessive current on the power supply line, heat generation and ignition of the power supply line. In order to avoid the situation that the battery with high power is charged for the battery with low power, optionally, when the voltage of the first battery is less than or equal to the preset voltage, and needs to be switched to be powered by the second battery, the second is blocked first. The power supply circuit and the first power supply circuit control the second battery to supply power to the load, thereby avoiding the second battery in the second charging circuit to the first charging circuit when the first battery and the second battery simultaneously supply power to the load The situation in which the first battery in the battery is charged.
可选地,采用第一供电电路中第一电池对负载进行供电包括:对第一供电电路中供电电流进行限流,得到第一电流;利用第一电流对负载进行供电;检测负载两端的电压与第一电池的电压的比例是否达到预设阈值;在负载两端的电压与第一电池的电压的比例达到预设阈值时,停止对供电电流的限流,并利用供电电流对负载供电。Optionally, using the first battery in the first power supply circuit to supply power to the load includes: limiting current supply current in the first power supply circuit to obtain a first current; using the first current to supply power to the load; detecting voltage across the load Whether the ratio of the voltage to the first battery reaches a preset threshold; when the ratio of the voltage across the load to the voltage of the first battery reaches a preset threshold, the current limiting of the supply current is stopped, and the supply current is used to supply power to the load.
在采用第一电池对负载进行供电时,由于第一电池的初始电压较高,会造成供电线路中的初始电流较大。为了避免供电线路中电流过大,对供电线路造成损害,可以在第一电池开始对负载进行供电时,对供电线路中的电流进行限流。可选地,在采用第一电池对负载进行供电时,对第一供电电路中的电流进行限流,得到第一电流,利用第一电流对负载进行供电,并在负载两端的电压与第一电池电压的比值达到预设阈值时,取消对供电线路中电流的限流。例如:在第一电池初始对负载进行供电时,对第一供电电路的电流进行限流,得到一个较小的电流,并对负载进行供电,负载两端的电压会在供电过程中持续变大,当负载两端的电压与第一电池的电压比值达到预设 阈值95%时,取消限流,由于此时负载两端的电压接近第一电池的电压,因此,第一供电电路中的供电电流不会出现过大的电流。When the first battery is used to supply power to the load, the initial current in the power supply line is large due to the higher initial voltage of the first battery. In order to avoid excessive current in the power supply line and damage to the power supply line, the current in the power supply line can be limited when the first battery starts to supply power to the load. Optionally, when the first battery is used to supply power to the load, the current in the first power supply circuit is limited to obtain a first current, and the first current is used to supply power to the load, and the voltage at both ends of the load is first. When the ratio of the battery voltage reaches a preset threshold, the current limit of the current in the power supply line is canceled. For example, when the first battery initially supplies power to the load, the current of the first power supply circuit is limited, a smaller current is obtained, and the load is supplied with power, and the voltage across the load continues to increase during the power supply process. When the voltage across the load and the voltage of the first battery reach a preset When the threshold value is 95%, the current limit is canceled. Since the voltage across the load at this time is close to the voltage of the first battery, the supply current in the first power supply circuit does not generate excessive current.
可选地,先控制第二供电电路中第二电池对负载供电,再控制第一电池停止对负载供电包括:对第二供电电路中供电电流进行限流,得到第二电流;利用第二电流对负载进行供电;检测负载两端的电压与第二电池的电压的比例是否达到预设阈值;在负载两端的电压与第二电池的电压的比例达到预设阈值时,停止对供电电流的限流,并利用供电电流对负载供电;在利用供电电流对负载供电之后,控制第一电池停止对负载供电。Optionally, first controlling the second battery in the second power supply circuit to supply power to the load, and then controlling the first battery to stop supplying power to the load includes: limiting current supply current in the second power supply circuit to obtain a second current; using the second current Powering the load; detecting whether the ratio of the voltage across the load to the voltage of the second battery reaches a preset threshold; stopping the current limiting current when the ratio of the voltage across the load to the voltage of the second battery reaches a preset threshold And using the supply current to supply power to the load; after the supply current is used to supply power to the load, the first battery is controlled to stop supplying power to the load.
当第一电池的电压小于或者等于预设电压,切换由第二电池对负载进行供电时,由于第二电池的初始电压较高,并且远大于负载两端的电压,会造成电池切换时,供电线路中的电流较大。为了避免供电线路中电流过大,对供电线路造成损害,可以在将第一电池切换成第二电池时,对第二供电电路中的电流进行限流,得到第二电流,利用第二电流对负载进行供电,并在负载两端的电压与第二电池电压的比值达到预设阈值时,取消对第二供电电路中电流的限流。例如:在控制第二电池对负载进行供电时,对第二供电电路的电流进行限流,得到一个较小的电流,并对负载进行供电,负载两端的电压会在供电过程中持续变大,当负载两端的电压与第二电池的电压比值达到预设阈值95%时,取消限流,由于此时负载两端的电压接近第二电池的电压,因此,第二供电电路中的供电电流不会出现过大的电流。When the voltage of the first battery is less than or equal to the preset voltage, when the second battery is used to supply power to the load, since the initial voltage of the second battery is higher and is far greater than the voltage across the load, the battery is switched when the battery is switched. The current in is large. In order to avoid excessive current in the power supply line and damage the power supply line, when the first battery is switched to the second battery, the current in the second power supply circuit can be limited to obtain a second current, and the second current is used. The load is supplied with power, and when the ratio of the voltage across the load to the second battery voltage reaches a preset threshold, the current limiting of the current in the second power supply circuit is canceled. For example, when controlling the second battery to supply power to the load, the current of the second power supply circuit is limited, a smaller current is obtained, and the load is supplied with power, and the voltage across the load continues to increase during the power supply process. When the ratio of the voltage across the load to the voltage of the second battery reaches 95% of the preset threshold, the current limit is canceled. Since the voltage across the load is close to the voltage of the second battery, the supply current in the second power supply circuit does not Excessive current is present.
可选地,在采用第一供电电路中第一电池对负载进行供电之前,方法还包括:从至少两个供电电路中任意选择一个目标供电电路;检测目标供电电路中电池的电压是否大于预设电压;在目标供电电路中电池的电压大于预设电压时,将目标供电电路作为第一供电电路。Optionally, before the first battery is used to supply power to the load in the first power supply circuit, the method further includes: arbitrarily selecting one target power supply circuit from the at least two power supply circuits; and detecting whether the voltage of the battery in the target power supply circuit is greater than a preset Voltage; when the voltage of the battery in the target power supply circuit is greater than the preset voltage, the target power supply circuit is used as the first power supply circuit.
本申请实施例中包括两个或者两个以上的供电电路,每一个供电电路中包括一组电池,第一电池为多组电池中的任意一组电池,在一种可选地实施方式中,在对负载进行供电之前,先从多个供电电路中任意选择一个供电电路作为目标供电电路,检测目标供电电路中的电池电压是否大于预设电压,如果目标供电电路中的电池电压大于预设电压,则将目标供电电路作为第一供电电路,由第一供电电路中的第一电池对负载进行供电。The embodiment of the present application includes two or more power supply circuits, each of which includes a battery, and the first battery is any one of a plurality of battery groups. In an optional implementation manner, Before powering the load, first select one power supply circuit from the plurality of power supply circuits as the target power supply circuit, and detect whether the battery voltage in the target power supply circuit is greater than a preset voltage, if the battery voltage in the target power supply circuit is greater than the preset voltage Then, the target power supply circuit is used as the first power supply circuit, and the first battery in the first power supply circuit supplies power to the load.
根据本申请实施例,还提供了一种供电电路的切换***的实施例,该切换***包括:负载;至少两个供电电路,至少两个供电电路之间并联连接,每一个供电电路与负载串联连接,其中,每一个供电电路的电路组成相同,每一个供电电路包括电池、第一开关,其中第一开关的第一端与电池的正极相耦合,第一开关的第二端与负载的 正极相耦合,在第一开关闭合时,由供电电路中的电池为负载供电。其中,第一开关的第一端与电池的正极相耦合是指,第一开关的第一端与电池的在正极可以直接相连,或者,在第一开关的第一端与电池的正极之间还连接有其它器件,第一开关的第一端与电池的正极间接相连,同样的,第一开关的第二端与负载的正极相耦合是指,第一开关的第二端与负载的正极直接相连,或者第一开关的第二端与负载的正极间接相连。According to an embodiment of the present application, an embodiment of a switching system of a power supply circuit is further provided, the switching system includes: a load; at least two power supply circuits, at least two power supply circuits are connected in parallel, and each power supply circuit is connected in series with the load Connecting, wherein each of the power supply circuits has the same circuit composition, each of the power supply circuits includes a battery, a first switch, wherein the first end of the first switch is coupled to the positive pole of the battery, and the second end of the first switch is coupled to the load The positive poles are coupled to provide power to the load by the battery in the power supply circuit when the first switch is closed. Wherein the first end of the first switch is coupled to the positive pole of the battery, the first end of the first switch being directly connected to the positive pole of the battery, or between the first end of the first switch and the positive pole of the battery Also connected to other devices, the first end of the first switch is indirectly connected to the positive pole of the battery, and similarly, the second end of the first switch is coupled to the positive pole of the load, the second end of the first switch and the positive pole of the load Directly connected, or the second end of the first switch is indirectly connected to the positive pole of the load.
本申请实施例中的供电电路的切换***,可以包括两上或者两个以上的供电电路,每一个供电电路中包括电池、第一开关,其中,第一开关设置在电池的正极与负载的正极之间,在第一开关闭合时,由该供电电路为负载进行充电。利用本申请的实施例的供电电路的切换***可以在当前对负载进行供电的供电电路中电池电量不足时,切换由另一个供电电路对负载供电,即实现多个供电电路的切换。The switching system of the power supply circuit in the embodiment of the present application may include two or more power supply circuits, each of which includes a battery and a first switch, wherein the first switch is disposed on the positive pole of the battery and the positive pole of the load. Between the first switch is closed, the load is charged by the power supply circuit. The switching system of the power supply circuit of the embodiment of the present application can switch the power supply to the load by another power supply circuit when the battery power is insufficient in the power supply circuit that currently supplies power to the load, that is, realize switching of the plurality of power supply circuits.
在本申请实施例中,通过在当前对负载进行供电的电池电压小于预设电压时,先控制另外一个供电电路的第一开关闭合,以采用另外一个供电电路对负载进行供电,再控制原供电电路的第一开关断开,达到了在进行电池切换时持续为负载供电的目的,从而实现了利用多组电池无缝切换地为负载供电的技术效果,进而解决了无法通过多组电池无缝切换为负载供电的技术问题。In the embodiment of the present application, when the battery voltage for powering the load is less than the preset voltage, the first switch of the other power supply circuit is first controlled to be closed, so that another power supply circuit is used to supply power to the load, and then the original power supply is controlled. The first switch of the circuit is disconnected, and the purpose of continuously supplying power to the load during battery switching is achieved, thereby realizing the technical effect of seamlessly switching the power supply to the load by using multiple sets of batteries, thereby solving the problem that the multi-cell battery cannot be seamlessly Switching to technical issues with load power.
由于在进行供电电路的切换时,先控制另外一个供电电路的第一开关闭合,以采用另外一个供电电路对负载进行供电,再控制原供电电路的第一开关断开,因此,存在两相供电电路同时对负载进行供电的情况,从而造成电量高的电池为电量低的电池进行充电的情况发生,进而可能导致供电线路上电流过大,供电线路发热、打火等现象的发生。为了避免出现电量高的电池为电量低的电池充电的情况发生,可选地,在每一个供电电路中设置第二开关和二极管,第二开关与二极管并联连接,第一开关与并联后的第二开关和二极管串联,其中,二极管的正极与电池的正极相耦合,二极管的第二端与负载的正极相耦合。在进行供电电路的切换时,先将当前供电电路中的第二开关断开,以使当前供电电路中的电流只能正向流动,然后控制另外一个供电电路的第一开关和第二开关闭合,以采用另外一个供电电路对负载供电,最后再将原供电电路的第一开关和第二开关断开,从而避免了电量高的电池为电量低的电池供电的情况发生。供电电路中的第二开关和二极管可以采用不同的连接方式,一种可选的连接方式为:第二开关的第一端与第一开关的第二端相连接,第二开关的第二端与负载的正极相连接,二极管的正极与第一开关的第二端相连接,二极管的负极与负载的正极相连接,另一种可选的连接方式为:第二开关的第一端与电池的正极相连接,第二开关的第二端与第一开关的第一端相连接,二极管的正极与电池的正极相连接,二极管的负极与第一开关的第一端相连接。 Since the first switch of the other power supply circuit is first closed when the power supply circuit is switched, the other power supply circuit is used to supply power to the load, and then the first switch of the original power supply circuit is turned off. Therefore, there is two-phase power supply. When the circuit supplies power to the load at the same time, the battery with high power is charged for the battery with low power, which may cause excessive current on the power supply line, heat generation and ignition of the power supply line. In order to avoid the situation that the battery with high power is charged for the battery with low power, optionally, a second switch and a diode are disposed in each power supply circuit, and the second switch is connected in parallel with the diode, and the first switch and the parallel The second switch and the diode are connected in series, wherein the anode of the diode is coupled to the anode of the battery, and the second end of the diode is coupled to the anode of the load. When switching the power supply circuit, the second switch in the current power supply circuit is first turned off, so that the current in the current power supply circuit can only flow forward, and then the first switch and the second switch of the other power supply circuit are controlled to be closed. The other power supply circuit is used to supply power to the load, and finally the first switch and the second switch of the original power supply circuit are disconnected, thereby preventing the battery with high power from being powered by the battery with low power. The second switch and the diode in the power supply circuit can adopt different connection manners. An optional connection manner is: the first end of the second switch is connected to the second end of the first switch, and the second end of the second switch is Connected to the positive pole of the load, the positive pole of the diode is connected to the second end of the first switch, the negative pole of the diode is connected to the positive pole of the load, and the other optional connection mode is: the first end of the second switch and the battery The positive pole is connected, the second end of the second switch is connected to the first end of the first switch, the positive pole of the diode is connected to the positive pole of the battery, and the negative pole of the diode is connected to the first end of the first switch.
在采用供电电路对负载进行供电时,或者在切换到新的供电电路,由新的供电电路对负载进行供电时,由于供电电路中电池的初始电压较高,会造成供电线路中的初始电流较大。为了避免供电线路中电流过大,对供电线路造成损害,可以在供电电路开始对负载进行供电时,对供电线路中的电流进行限流。可选地,在每一个供电电路中设置第三开关和预充电阻,第三开关和预充电阻并联连接,第一开关与并联后的第三开关和预充电阻串联,其中,预充电阻的第一端与电池的正极相耦合,预充电阻的第二端与负载的正极相耦合。在采用供电电路对负载进行供时,或者切换到新的供电电路,由新的供电电路对负载进行供电时,先将第三开关断开,以将预充电阻接入供电电路中,对该供电电路中的电流进行限流,防止电流过大对电路造成损害,在供电电路对负载进行供电,使负载两端的电压与供电电路中电池的电压比值达到预设阈值时,再将第三开关闭合,以取消对该供电电路中电流的限流。When the power supply circuit is used to supply power to the load, or when switching to a new power supply circuit, when the new power supply circuit supplies power to the load, the initial current in the power supply circuit is higher due to the higher initial voltage of the battery in the power supply circuit. Big. In order to avoid excessive current in the power supply line and damage to the power supply line, the current in the power supply line can be limited when the power supply circuit starts to supply power to the load. Optionally, a third switch and a pre-charge resistor are disposed in each power supply circuit, and the third switch and the pre-charge resistor are connected in parallel, and the first switch is connected in series with the third switch and the pre-charge resistor in parallel, wherein the pre-charge resistor The first end is coupled to the positive terminal of the battery, and the second end of the pre-charge resistor is coupled to the positive electrode of the load. When the power supply circuit is used to supply the load, or when switching to a new power supply circuit, when the new power supply circuit supplies power to the load, the third switch is first turned off to connect the pre-charge resistor to the power supply circuit, The current in the power supply circuit is limited to prevent damage to the circuit caused by excessive current. When the power supply circuit supplies power to the load, so that the voltage between the voltage across the load and the battery in the power supply circuit reaches a preset threshold, the third switch is Closed to cancel the current limit in the power supply circuit.
供电电路中的第三开关和预充电阻可以采用不同的连接方式,第二开关与二极管采用如下连接方式时:第二开关的第一端与第一开关的第二端相连接,第二开关的第二端与负载的正极相连接,二极管的正极与第一开关的第二端相连接,二极管的负极与负载的正极相连接。第三开关和预充电阻的一种可选的连接方式为:第三开关的第一端与第二开关的第二端相连接,第三开关的第二端与第一开关的第一端相连接,预充电阻的第一端与第二开关的第二端相连接,预充电阻的第二端与第一开关的第一端相连接。另一种可选的连接方式为:第三开关的第一端与电池的正极相连接,第三开关的第二端与第二开关的第一端相连接,预充电阻的第一端与电池的正极相连接,预充电阻的第二端与第二开关的第一端相连接。另一种可选的连接方式为:第三开关的第一端与第一开关的第一端相连接,第三开关的第二端与负载的正极相连接,预充电阻的第一端与第一开关的第一端相连接,预充电阻的第二端与负载的正极相连接。第二开关与二极管采用如下连接方式时:第二开关的第一端与电池的正极相连接,第二开关的第二端与第一开关的第一端相连接,二极管的正极与电池的正极相连接,二极管的负极与第一开关的第一端相连接。第三开关和预充电阻的一种可选的连接方式为:第三开关的第一端与第一开关的第二端相连接,第三开关的第二端与第二开关的第一端相连接,预充电阻的第一端与第一开关的第二端相连接,预充电阻的第二端与第二开关的第一端相连接。另一种可选的连接方式为:第三开关的第一端与电池的正极相连接,第三开关的第二端与第一开关的第一端相连接,预充电阻的第一端与电池的正极相连接,预充电阻的第二端与第一开关的第一端相连接。另一种可选的连接方式为:第三开关的第一端与第二开关的第二端相连接,第三开关的第二端与负载的正极相连接,预充电阻的第一端与第二开关的第二端相连接,预充电阻的第二端与负载的正极相连接。 The third switch and the pre-charge resistor in the power supply circuit can adopt different connection manners. When the second switch and the diode are connected as follows: the first end of the second switch is connected with the second end of the first switch, and the second switch The second end is connected to the positive pole of the load, the positive pole of the diode is connected to the second end of the first switch, and the negative pole of the diode is connected to the positive pole of the load. An optional connection manner of the third switch and the pre-charge resistor is: the first end of the third switch is connected to the second end of the second switch, and the second end of the third switch is connected to the first end of the first switch The first end of the pre-charge resistor is connected to the second end of the second switch, and the second end of the pre-charge resistor is connected to the first end of the first switch. Another optional connection method is: the first end of the third switch is connected to the positive pole of the battery, and the second end of the third switch is connected to the first end of the second switch, the first end of the pre-charge resistor is The positive pole of the battery is connected, and the second end of the pre-charge resistor is connected to the first end of the second switch. Another optional connection method is: the first end of the third switch is connected to the first end of the first switch, the second end of the third switch is connected to the positive pole of the load, and the first end of the pre-charge resistor is The first end of the first switch is connected, and the second end of the pre-charge resistor is connected to the positive pole of the load. When the second switch and the diode are connected as follows: the first end of the second switch is connected to the positive pole of the battery, and the second end of the second switch is connected to the first end of the first switch, the positive pole of the diode and the positive pole of the battery Connected, the negative pole of the diode is connected to the first end of the first switch. An optional connection manner of the third switch and the pre-charge resistor is: the first end of the third switch is connected to the second end of the first switch, and the second end of the third switch is connected to the first end of the second switch The first end of the pre-charge resistor is connected to the second end of the first switch, and the second end of the pre-charge resistor is connected to the first end of the second switch. Another optional connection method is: the first end of the third switch is connected to the positive pole of the battery, and the second end of the third switch is connected to the first end of the first switch, the first end of the pre-charge resistor is The positive pole of the battery is connected, and the second end of the pre-charge resistor is connected to the first end of the first switch. Another optional connection method is: the first end of the third switch is connected to the second end of the second switch, and the second end of the third switch is connected to the positive pole of the load, and the first end of the pre-charge resistor is The second end of the second switch is connected, and the second end of the pre-charge resistor is connected to the positive pole of the load.
可选地,还可以在供电电路中的电池的负极和负载之间设置一个第四开关,当第一开关与第四开关同时闭合时,由该供电电路为负载进行充电。Optionally, a fourth switch may be disposed between the negative pole of the battery and the load in the power supply circuit, and when the first switch and the fourth switch are simultaneously closed, the power supply circuit charges the load.
图2是根据本申请实施例的一种可选的供电电路的切换***的示意图,如图2所示,该供电电路的切换***包括:负载、第一供电电路和第二供电电路,其中第一供电电路和第二供电电路之间并联连接,第一供电电路和第二供电电路分别与负载串联连接。第一供电电路包括电池1、开关1(相当于第二开关)、二极管D1、开关2(相当于第三开关)、电阻R1(相当于预充电阻)、开关3(相当于第一开关)、开关4(相当于第四开关),第二供电电路包括电池2、开关5(相当于第二开关)、二极管D2、开关6(相当于第三开关)、电阻R2(相当于预充电阻)、开关7(相当于第一开关)、开关8(相当于第四开关),其中,继电器K1控制开关1的断开与闭合,继电器K2控制开关2的断开与闭合,继电器K3控制开关和开关4的断开与闭合,继电器K4控制开关5的断开与闭合,继电器K5控制开关6的断开与闭合,继电器K6控制开关7和开关8的断开与闭合。2 is a schematic diagram of an alternative power supply circuit switching system according to an embodiment of the present application. As shown in FIG. 2, the power supply circuit switching system includes: a load, a first power supply circuit, and a second power supply circuit, where A power supply circuit and a second power supply circuit are connected in parallel, and the first power supply circuit and the second power supply circuit are respectively connected in series with the load. The first power supply circuit includes a battery 1, a switch 1 (corresponding to a second switch), a diode D1, a switch 2 (corresponding to a third switch), a resistor R1 (corresponding to a precharge resistor), and a switch 3 (corresponding to a first switch) The switch 4 (corresponding to the fourth switch), the second power supply circuit includes the battery 2, the switch 5 (corresponding to the second switch), the diode D2, the switch 6 (corresponding to the third switch), and the resistor R2 (corresponding to the pre-charge resistor) ), switch 7 (equivalent to the first switch), switch 8 (corresponding to the fourth switch), wherein the relay K1 controls the opening and closing of the switch 1, the relay K2 controls the opening and closing of the switch 2, and the relay K3 controls the switch With the opening and closing of the switch 4, the relay K4 controls the opening and closing of the switch 5, the relay K5 controls the opening and closing of the switch 6, and the relay K6 controls the opening and closing of the switch 7 and the switch 8.
图3是根据本申请实施例的一种可选地供电电路的切换方法的流程图,该方法可应用于图2所示的切换***,如图3所示,该方法包括如下步骤:FIG. 3 is a flowchart of a method for switching a power supply circuit according to an embodiment of the present application. The method is applicable to the switching system shown in FIG. 2. As shown in FIG. 3, the method includes the following steps:
步骤S301,判断电池1电压是否大于设定值(相当于预设电压)。In step S301, it is determined whether the voltage of the battery 1 is greater than a set value (corresponding to a preset voltage).
步骤S302,如果电池1电压大于设定值,则继电器K1、继电器K3吸合,继电器K2不动作。当电池1的电压大于设定值,则表明电池1的电量充足,可以为负载供电,控制继电器K1、继电器K3吸合,继电器K2不动作,此时,开关1、开关3和开关4闭合,开关2断开,采用第一供电电路对负载供电,第一供电电路中的电流流过电阻R1,通过电阻R1对第一供电电路进行限流,防止第一供电电路中的初始电流过大。In step S302, if the voltage of the battery 1 is greater than the set value, the relay K1 and the relay K3 are engaged, and the relay K2 does not operate. When the voltage of the battery 1 is greater than the set value, it indicates that the battery 1 has sufficient power to supply power to the load, the control relay K1 and the relay K3 are closed, and the relay K2 does not operate. At this time, the switch 1, the switch 3 and the switch 4 are closed. The switch 2 is disconnected, and the first power supply circuit is used to supply power to the load. The current in the first power supply circuit flows through the resistor R1, and the first power supply circuit is limited by the resistor R1 to prevent the initial current in the first power supply circuit from being excessive.
步骤S303,判断负载电压是否大于电池1电压的95%。通过检测A、B两点间的电压,得到负载电压,进而判断负载电压与电池1电压的比值是否达到预设阈值95%。In step S303, it is determined whether the load voltage is greater than 95% of the voltage of the battery 1. By detecting the voltage between the two points A and B, the load voltage is obtained, and it is determined whether the ratio of the load voltage to the voltage of the battery 1 reaches a preset threshold of 95%.
步骤S304,如果负载电压是否大于电池1电压的95%,则继电器K2吸合。如果负载电压与电池1电压的比值是否达到预设阈值95%,则控制继电器K2吸合,此时,开关2闭合,电阻R1短路,取消对第一供电电路的限流。In step S304, if the load voltage is greater than 95% of the voltage of the battery 1, the relay K2 is pulled. If the ratio of the load voltage to the voltage of the battery 1 reaches 95% of the preset threshold, the control relay K2 is pulled in. At this time, the switch 2 is closed, and the resistor R1 is short-circuited, and the current limiting circuit is cancelled.
步骤S305,判断电池1电压是否小于等于电池欠压值。In step S305, it is determined whether the voltage of the battery 1 is less than or equal to the battery undervoltage value.
步骤S306,如果电池1电压是否小于等于电池欠压值,判断电池2电压是否大于设定值。当判断出电池1的电压小于等于电池欠压值时,表明电池1的电量不足。再判断电池2的电压是否大于设定值。 Step S306, if the voltage of the battery 1 is less than or equal to the battery undervoltage value, it is determined whether the voltage of the battery 2 is greater than a set value. When it is judged that the voltage of the battery 1 is less than or equal to the battery undervoltage value, it indicates that the battery 1 has insufficient power. It is further determined whether the voltage of the battery 2 is greater than a set value.
步骤S307,如果电池2电压大于设定值,则继电器K1断开。如果电池2的电压大于设定值,则准备切换成由第二供电电路对负载进行供电。为了防止在切换过程中电量大的电池2对电量小的电池1进行充电,先控制继电器K1断开,此时开关1断开,二极管D1接入到第一供电电路中,第一供电电路中的电流只能由电池1的正极流出,而无法流向电池1的正极,防止了电池2向电池1充电。In step S307, if the voltage of the battery 2 is greater than the set value, the relay K1 is turned off. If the voltage of the battery 2 is greater than the set value, it is ready to switch to supply power to the load by the second power supply circuit. In order to prevent the battery 2 with a large amount of electricity during the switching process from charging the battery 1 with a small amount of power, the control relay K1 is first turned off, and at this time, the switch 1 is turned off, and the diode D1 is connected to the first power supply circuit, in the first power supply circuit. The current can only flow out of the positive electrode of the battery 1 and cannot flow to the positive electrode of the battery 1, preventing the battery 2 from charging the battery 1.
步骤S308,继电器K4、继电器K6吸合。在开关1断开之后,再控制继电器K4、继电器K6吸合,此时,开关5、开关7和开关8闭合,由第二供电电路为负载进行供电。其中,继电器K5不动作,开关6保持断开,第二供电电路中的电流流经电阻R2,由电阻R2对第二供电电路进行限流,防止第二供电电路中的电流过大,对供电线路造成损害。In step S308, the relay K4 and the relay K6 are attracted. After the switch 1 is turned off, the control relay K4 and the relay K6 are re-energized. At this time, the switch 5, the switch 7 and the switch 8 are closed, and the second power supply circuit supplies power to the load. Wherein, the relay K5 does not operate, the switch 6 remains open, the current in the second power supply circuit flows through the resistor R2, and the second power supply circuit is limited by the resistor R2 to prevent the current in the second power supply circuit from being excessively large. The line caused damage.
步骤S309,判断负载电压是否大于电池2电压的95%。In step S309, it is judged whether the load voltage is greater than 95% of the voltage of the battery 2.
步骤S310,如果负载电压大于电池2电压的95%,则继电器K5吸合。当负载电压与电池2电压的比值达到预设阈值时,控制继电器K5吸合,此时,开关6闭合,电阻R2短路,取消对第二供电电路的限流。In step S310, if the load voltage is greater than 95% of the voltage of the battery 2, the relay K5 is pulled. When the ratio of the load voltage to the voltage of the battery 2 reaches a preset threshold, the control relay K5 is pulled in. At this time, the switch 6 is closed, and the resistor R2 is short-circuited, and the current limiting of the second power supply circuit is cancelled.
步骤S311,继电器K2、继电器K3断开。最后控制继电器K2、继电器K3断开,此时,开关2、开关3和开关4断开,停止采用第一供电电路对负载供电。In step S311, the relay K2 and the relay K3 are turned off. Finally, the control relay K2 and the relay K3 are turned off. At this time, the switch 2, the switch 3 and the switch 4 are disconnected, and the first power supply circuit is stopped to supply power to the load.
根据本申请实施例,还提供了一种供电电路的切换方法的实施例,该供电电路的切换方法可以用于上述供电电路的切换***,如图4所示,该方法包括如下步骤:According to an embodiment of the present application, an embodiment of a switching method of a power supply circuit is also provided. The switching method of the power supply circuit can be used in the switching system of the power supply circuit. As shown in FIG. 4, the method includes the following steps:
步骤S402,控制第一供电电路的第一开关和第一供电电路的第四开关闭合,其中,第一供电电路为至少两个供电电路中的任意一个,第一供电电路的电池的电压大于预设电压;Step S402, controlling the first switch of the first power supply circuit and the fourth switch of the first power supply circuit to be closed, wherein the first power supply circuit is any one of the at least two power supply circuits, and the voltage of the battery of the first power supply circuit is greater than the pre- Set voltage
步骤S404,在第一供电电路的第一开关和第一供电电路的第四开关闭合之后,检测第一供电电路的电池的电压;Step S404, after the first switch of the first power supply circuit and the fourth switch of the first power supply circuit are closed, detecting the voltage of the battery of the first power supply circuit;
步骤S406,当检测出第一供电电路的电池的电压大于预设电压时,保持第一供电电路的第一开关和第一供电电路的第四开关闭合;Step S406, when detecting that the voltage of the battery of the first power supply circuit is greater than the preset voltage, maintaining the first switch of the first power supply circuit and the fourth switch of the first power supply circuit are closed;
步骤S408,当检测出第一供电电路的电池的电压小于或者等于预设电压时,先控制第二供电电路的第一开关和第二供电电路的第四开关闭合,然后再控制第一供电电路的第一开关和第一供电电路的第四开关断开,其中,第二供电电路为至少两个供电电路中不同于第一供电电路的任意一个供电电路,第二供电电路的电池的电压大于预设电压。 Step S408, when it is detected that the voltage of the battery of the first power supply circuit is less than or equal to the preset voltage, first controlling the first switch of the second power supply circuit and the fourth switch of the second power supply circuit to be closed, and then controlling the first power supply circuit. The first switch is disconnected from the fourth switch of the first power supply circuit, wherein the second power supply circuit is any one of the at least two power supply circuits different from the first power supply circuit, and the voltage of the battery of the second power supply circuit is greater than Preset voltage.
可选地,第一供电电路为本申请实施例中两个或者两个以上的供电电路中的任意一个供电电路,第二供电电路为上述两个或者两个以上的供电电路中不同于第一供电电路的任意一个供电电路。当第一供电路中的电池的电压大于预设电压时,可以控制第一供电电路中的第一开关和第四开关闭合,采用第一电池对负载进行供电。在采用第一供电路为负载进行供电的过程中,随着电池电量的减少,电池的电压会不断下降。对第一供电路中的电池的电压进行实时检测,在检测到电池的电压大于预设电压时,继续由第一供电路对负载进行供电,当检测到电池的电压小于或者等于预设电压时,第一供电路中的电池的电量不足,此时,先控制第二供电路中的第一开关和第四开关闭合,以使第二供电电路对负载进行供电,在控制第二供电电路的第一开关和第四开关闭合之后,再控制第一供电电路的第一开关和第四开关断开,以停止由第一供电电路对负载进行供电,从而实现对负载的不间断供电,即电池的无缝切换。Optionally, the first power supply circuit is any one of two or more power supply circuits in the embodiment of the present application, and the second power supply circuit is different from the first two or more power supply circuits. Any one of the power supply circuits of the power supply circuit. When the voltage of the battery in the first supply circuit is greater than the preset voltage, the first switch and the fourth switch in the first power supply circuit may be controlled to be closed, and the first battery is used to supply power to the load. In the process of supplying power to the load by using the first supply circuit, as the battery power is reduced, the voltage of the battery is continuously decreased. Performing real-time detection on the voltage of the battery in the first supply circuit, and when detecting that the voltage of the battery is greater than the preset voltage, continuing to supply power to the load by the first supply circuit, when detecting that the voltage of the battery is less than or equal to the preset voltage The battery in the first supply circuit is insufficient in power. At this time, the first switch and the fourth switch in the second supply circuit are first controlled to be closed, so that the second power supply circuit supplies power to the load, and the second power supply circuit is controlled. After the first switch and the fourth switch are closed, the first switch and the fourth switch of the first power supply circuit are controlled to be disconnected to stop the power supply to the load by the first power supply circuit, thereby achieving uninterrupted power supply to the load, that is, the battery Seamless switching.
在本申请实施例中,通过在第一供电电路的电池电压小于预设电压时,先控制第二供电电路的第一开关和第二供电电路的第四开关闭合,再控制第一供电电路的第一开关和第一供电电路的第四开关断开,达到了在进行电池切换时持续为负载供电的目的,从而实现了利用多组电池无缝切换地为负载供电的技术效果,进而解决了无法通过多组电池无缝切换为负载供电的技术问题。In the embodiment of the present application, when the battery voltage of the first power supply circuit is less than the preset voltage, the first switch of the second power supply circuit and the fourth switch of the second power supply circuit are first controlled to be closed, and then the first power supply circuit is controlled. The first switch and the fourth switch of the first power supply circuit are disconnected, thereby achieving the purpose of continuously supplying power to the load during battery switching, thereby realizing the technical effect of using a plurality of sets of batteries to seamlessly switch the power supply to the load, thereby solving the problem. Technical problems that cannot be seamlessly switched to load power through multiple sets of batteries.
可选地,供电电路包括第二开关和二极管,控制第一供电电路的第一开关和第一供电电路的第四开关闭合之前,方法还包括:控制第一供电电路的第二开关闭合;在控制第二供电电路的第一开关和第二供电电路的第四开关闭合之前,方法还包括:控制第一供电电路的第二开关断开,以利用二极管阻断第一供电电路和第二供电电路。Optionally, the power supply circuit includes a second switch and a diode, and before the first switch of the first power supply circuit and the fourth switch of the first power supply circuit are closed, the method further includes: controlling the second switch of the first power supply circuit to be closed; Before controlling the first switch of the second power supply circuit and the fourth switch of the second power supply circuit to be closed, the method further includes: controlling the second switch of the first power supply circuit to be turned off to block the first power supply circuit and the second power supply by using the diode Circuit.
由于在进行供电电路的切换时,先控制第二供电电路的第一开关和第二供电电路的第四开关闭合,再控制第一供电电路的第一开关和第一供电电路的第四开关断开,因此,存在第一供电电路和第二供电电路同时对负载进行供电的情况,从而造成第二供电电路中的电池为的第一供电电路中的电池进行充电的情况发生,进而可能导致供电线路上电流过大,供电线路发热、打火等现象的发生。为了避免出现第二供电电路中的电池为的第一供电电路中的电池进行充电的情况发生,可选地,在供电电路中设置第二开关和二极管,第二开关与二极管并联连接,在进行供电电路的切换时,先将第一供电电路中的第二开关断开,以使当前供电电路中的电流只能从二极管的正极向负极流动,然后控制第二供电电路的第一开关和第二供电电路第四开关闭合,以采用第二供电电路对负载供电,最后再将第一供电电路的第一开关和第一供电电路的第四开关断开,从而避免了第二供电电路中的电池为的第一供电电路中的电池进行充电的情况发生。 When the switching of the power supply circuit is performed, the first switch of the second power supply circuit and the fourth switch of the second power supply circuit are first closed, and then the first switch of the first power supply circuit and the fourth switch of the first power supply circuit are controlled to be off. Therefore, there is a case where the first power supply circuit and the second power supply circuit simultaneously supply power to the load, thereby causing a situation in which the battery in the first power supply circuit of the second power supply circuit is charged, which may cause power supply The current on the line is too large, and the power supply line generates heat and sparks. In order to avoid the occurrence of charging of the battery in the first power supply circuit of the battery in the second power supply circuit, optionally, the second switch and the diode are disposed in the power supply circuit, and the second switch is connected in parallel with the diode, When the power supply circuit is switched, the second switch in the first power supply circuit is first turned off, so that the current in the current power supply circuit can only flow from the positive pole to the negative pole of the diode, and then the first switch and the second power supply circuit are controlled. The fourth switch of the second power supply circuit is closed to supply power to the load by using the second power supply circuit, and finally the first switch of the first power supply circuit and the fourth switch of the first power supply circuit are disconnected, thereby avoiding the second power supply circuit. The battery is charged when the battery in the first power supply circuit is charged.
可选地,供电电路包括第三开关和预充电阻,在控制第一供电电路的第一开关和第一供电电路的第四开关闭合之前,方法还包括:控制第一供电电路的第三开关断开;检测负载两端的电压与第一供电电路中电池的电压的比例是否达到预设阈值;在负载两端的电压与第一供电电路中电池的电压的比例达到第一阈值时,控制第一供电电路的第三开关闭合。Optionally, the power supply circuit includes a third switch and a pre-charge resistor. Before the first switch of the first power supply circuit and the fourth switch of the first power supply circuit are closed, the method further includes: controlling the third switch of the first power supply circuit Disconnecting; detecting whether the ratio of the voltage across the load to the voltage of the battery in the first power supply circuit reaches a preset threshold; when the ratio of the voltage across the load to the voltage of the battery in the first power supply circuit reaches a first threshold, the control is first The third switch of the power supply circuit is closed.
在控制第一供电电路的第一开关和第一供电电路的第四开关闭合,以采用第一供电电路对负载进行供电时,由于第一供电电路中电池的初始电压较高,会造成供电线路中的初始电流较大。为了避免供电线路中电流过大,对供电线路造成损害,可以在供电电路中设置第三开关和预充电阻,第三开关与预充电阻并联连接,在控制第一供电电路的第一开关和第一供电电路的第四开关闭合之前,先控制第三开关断开,以对第一供电电路中的电流进行限流,在负载两端的电压与第一供电电路中电池的电压的比值达到预设阈值时,控制第三开关闭合,以取消对第一供电电路中电流的限流。When the first switch of the first power supply circuit and the fourth switch of the first power supply circuit are closed to supply power to the load by using the first power supply circuit, since the initial voltage of the battery in the first power supply circuit is high, the power supply line is caused. The initial current in is large. In order to avoid excessive current in the power supply line and damage to the power supply line, a third switch and a pre-charge resistor may be disposed in the power supply circuit, and the third switch is connected in parallel with the pre-charge resistor to control the first switch of the first power supply circuit and Before the fourth switch of the first power supply circuit is closed, the third switch is first turned off to limit the current in the first power supply circuit, and the ratio of the voltage across the load to the voltage of the battery in the first power supply circuit is pre- When the threshold is set, the third switch is controlled to be closed to cancel the current limit of the current in the first power supply circuit.
可选地,在控制第二供电电路的第一开关和第二供电电路的第四开关闭合之前,方法还包括:控制第二供电电路的第三开关断开;在控制第二供电电路的第一开关和第二供电电路的第四开关闭合之后,方法还包括:检测负载两端的电压与第二供电电路中电池的电压比例是否达到预设阈值;在负载两端的电压与第二供电电路中电池的电压比例达到预设阈值时,控制第二供电电路的第三开关闭合;在控制第二供电电路的第三开关闭合之后,控制第一供电电路的第一开关和第一供电电路的第四开关断开。Optionally, before controlling the first switch of the second power supply circuit and the fourth switch of the second power supply circuit to be closed, the method further includes: controlling the third switch of the second power supply circuit to be turned off; and controlling the second power supply circuit After the switch and the fourth switch of the second power supply circuit are closed, the method further includes: detecting whether the voltage between the voltage across the load and the voltage of the battery in the second power supply circuit reaches a preset threshold; and the voltage across the load and the second power supply circuit Controlling the third switch of the second power supply circuit to be closed when the voltage ratio of the battery reaches a preset threshold; controlling the first switch of the first power supply circuit and the first power supply circuit after controlling the third switch of the second power supply circuit to be closed The four switches are open.
当第一充电电路中电池的电压小于或者等于预设电压,切换由第二供电电路对负载进行供电时,由于第二供电电路中电池的初始电压较高,并且远大于负载两端的电压,会造成电路切换时,第二供电电路中的电流较大。为了避免供电线路中电流过大,对供电线路造成损害,可以在供电电路切换时,控制第三开关断开,以通过预充电阻对第二供电电路中的电流进行限流,并在负载两端的电压与第二供电电路中电池的电压的比值达到预设阈值时,控制第三开关闭合,取消对第二供电电路中电流的限流。When the voltage of the battery in the first charging circuit is less than or equal to the preset voltage, when the second power supply circuit supplies power to the load, since the initial voltage of the battery in the second power supply circuit is higher and is much larger than the voltage across the load, When the circuit is switched, the current in the second power supply circuit is large. In order to avoid excessive current in the power supply line and damage to the power supply line, the third switch can be controlled to be turned off when the power supply circuit is switched, to limit the current in the second power supply circuit through the pre-charge resistor, and to load two When the ratio of the voltage of the terminal to the voltage of the battery in the second power supply circuit reaches a preset threshold, the third switch is controlled to be closed, and the current limiting of the current in the second power supply circuit is cancelled.
为了实现上述目的,根据本申请的另一方面,本申请实施例还提供了一种存储介质,存储介质包括存储的程序,其中,在程序运行时控制存储介质所在设备执行上述的电池切换的方法和供电电路的切换方法。In order to achieve the above object, according to another aspect of the present application, an embodiment of the present application further provides a storage medium, where the storage medium includes a stored program, wherein, when the program is running, controlling a device in which the storage medium is located to perform the battery switching described above And the switching method of the power supply circuit.
为了实现上述目的,根据本申请的另一方面,本申请实施例还提供了一种处理器,处理器用于运行程序,其中,程序运行时执行上述的电池切换的方法和供电电路的切换方法。In order to achieve the above object, according to another aspect of the present application, an embodiment of the present application further provides a processor, where a processor is configured to run a program, wherein the method for performing battery switching and the method for switching a power supply circuit are executed when the program is running.
根据本申请实施例,还提供了一种电池的切换装置的实施例,图5是根据本申请实施例中一种可选地电池的切换装置的示意图,如图5所示,该装置包括: According to an embodiment of the present application, an embodiment of a battery switching device is further provided. FIG. 5 is a schematic diagram of an optional battery switching device according to an embodiment of the present application. As shown in FIG. 5, the device includes:
第一供电单元510,用于采用第一供电电路中第一电池对负载进行供电,其中,第一供电电路为多个供电电路中任意一个,每一个供电电路的电路组成相同,第一电池的电压大于预设电压;The first power supply unit 510 is configured to supply power to the load by using the first battery in the first power supply circuit, wherein the first power supply circuit is any one of the plurality of power supply circuits, and the circuit composition of each of the power supply circuits is the same, the first battery The voltage is greater than the preset voltage;
检测单元520,用于在第一电池对负载供电的过程中,检测第一电池的电压;The detecting unit 520 is configured to detect a voltage of the first battery during the power supply of the first battery to the load;
第二供电单元530,用于在检测出第一电池的电压大于预设电压时,继续采用第一电池对负载供电;The second power supply unit 530 is configured to continue to use the first battery to supply power to the load when detecting that the voltage of the first battery is greater than the preset voltage;
第三供电单元540,用于在检测出第一电池的电压小于或者等于预设电压时,先控制第二供电电路中第二电池对负载供电,再控制第一电池停止对负载供电,其中,第二供电电路为多个供电电路中不同于第一供电电路的任意一个供电电路,第二电池的电压大于预设电压。The third power supply unit 540 is configured to first control the second battery in the second power supply circuit to supply power to the load when the voltage of the first battery is less than or equal to the preset voltage, and then control the first battery to stop supplying power to the load, where The second power supply circuit is any one of the plurality of power supply circuits different from the first power supply circuit, and the voltage of the second battery is greater than the preset voltage.
可选地,第一电池为本申请实施例中多组电池中的任意一组电池,当第一电池的大于预设电压时,可以采用第一电池对负载进行供电。在采用第一电池为负载进行供电的过程中,随着第一电池电量的减少,第一电池的电压会不断下降。对第一电池的电压进行实时检测,在检测到第一电池的电压大于预设电压时,继续由第一电池对负载进行供电,当检测到第一电池的电压小于或者等于预设电压时,第一电池的电量不足,此时,先控制由第二电池对负载进行供电,第二电池为其它电池中,任意一组电压大于预设电压的电池,在由第二电池对负载进行供电之后,再控制第一电池停止对负载进行供电,以实现对负载的不间断供电,即电池的无缝切换。Optionally, the first battery is any one of the plurality of batteries in the embodiment of the present application. When the first battery is greater than the preset voltage, the first battery may be used to supply power to the load. During the process of powering the load using the first battery, as the first battery power is reduced, the voltage of the first battery is continuously decreased. Performing real-time detection on the voltage of the first battery, and when detecting that the voltage of the first battery is greater than the preset voltage, continuing to supply power to the load by the first battery, when detecting that the voltage of the first battery is less than or equal to the preset voltage, The first battery has insufficient power. At this time, the second battery is used to control the load, and the second battery is the other battery. Any one of the batteries having a voltage greater than the preset voltage is powered by the second battery. Then, the first battery is stopped to supply power to the load to realize uninterrupted power supply to the load, that is, seamless switching of the battery.
在本申请实施例中,采用如下装置:第一供电单元,用于采用第一供电电路中第一电池对负载进行供电,其中,第一供电电路为多个供电电路中任意一个,每一个供电电路的电路组成相同,第一电池的电压大于预设电压;检测单元,用于在第一电池对负载供电的过程中,检测第一电池的电压;第二供电单元,用于在检测出第一电池的电压大于预设电压时,继续采用第一电池对负载供电;第三供电单元,用于在检测出第一电池的电压小于或者等于预设电压时,先控制第二供电电路中第二电池对负载供电,再控制第一电池停止对负载供电,其中,第二供电电路为多个供电电路中不同于第一供电电路的任意一个供电电路,第二电池的电压大于预设电压,通过在第一电池的电压小于或者等于预设电压时,先控制第二电池对负载供电,再控制第一电池对负载供电,达到了在进行电池切换时持续为负载供电的目的,从而实现了利用多组电池无缝切换地为负载供电的技术效果,进而解决了无法通过多组电池无缝切换为负载供电的技术问题。In the embodiment of the present application, the following device is used: the first power supply unit is configured to supply power to the load by using the first battery in the first power supply circuit, wherein the first power supply circuit is any one of the plurality of power supply circuits, and each of the power supplies The circuit has the same circuit composition, the voltage of the first battery is greater than the preset voltage; the detecting unit is configured to detect the voltage of the first battery during the process of supplying power to the load by the first battery; and the second power supply unit is configured to detect When the voltage of the battery is greater than the preset voltage, the first battery continues to be used to supply power to the load; and the third power supply unit is configured to first control the second power supply circuit when detecting that the voltage of the first battery is less than or equal to the preset voltage. The second battery supplies power to the load, and then controls the first battery to stop supplying power to the load. The second power supply circuit is any one of the plurality of power supply circuits different from the first power supply circuit, and the voltage of the second battery is greater than the preset voltage. When the voltage of the first battery is less than or equal to the preset voltage, the second battery is first controlled to supply power to the load, and then the first battery is controlled to load The electric power achieves the purpose of continuously supplying power to the load during battery switching, thereby realizing the technical effect of seamlessly switching the power supply to the load by using multiple sets of batteries, thereby solving the technology that cannot seamlessly switch to the load through multiple sets of batteries. problem.
可选地,装置还包括:阻断单元,用于在控制第二供电电路中第二电池对负载供 电之前,阻断第二供电电路和第一供电电路,以阻止第二供电电路向第一供电电路供电。Optionally, the device further includes: a blocking unit, configured to supply the second battery to the load in the second power supply circuit Before the electricity is turned on, the second power supply circuit and the first power supply circuit are blocked to prevent the second power supply circuit from supplying power to the first power supply circuit.
由于在第一电池的电压小于或者等于预设电压时,先控制第二电池对负载进行供电,再控制第一电池停止对负载进行供电,因此,存在第一电池和第二电池同时对负载进行供电的情况,从而造成电量高的第二电池为电量低的第一电池进行充电的情况发生,进而可能导致供电线路上电流过大,供电线路发热、打火等现象的发生。为了避免出现电量高的电池为电量低的电池充电的情况发生,可选地,当第一电池的电压小于或者等于预设电压,需要切换为由第二电池进行供电时,先阻断第二供电电路与第一供电电路,再控制第二电池对负载进行供电,从而避免了在第一电池和第二电池同时对负载进行供电时,第二充电电路中的第二电池对第一充电电路中的第一电池进行充电的情况发生。Since the voltage of the first battery is less than or equal to the preset voltage, the second battery is first controlled to supply power to the load, and then the first battery is stopped to supply power to the load. Therefore, the first battery and the second battery are simultaneously loaded. In the case of power supply, the second battery with high power is charged for the first battery with low power, which may cause excessive current on the power supply line, heat generation and ignition of the power supply line. In order to avoid the situation that the battery with high power is charged for the battery with low power, optionally, when the voltage of the first battery is less than or equal to the preset voltage, and needs to be switched to be powered by the second battery, the second is blocked first. The power supply circuit and the first power supply circuit control the second battery to supply power to the load, thereby avoiding the second battery in the second charging circuit to the first charging circuit when the first battery and the second battery simultaneously supply power to the load The situation in which the first battery in the battery is charged.
上述本申请实施例序号仅仅为了描述,不代表实施例的优劣。The serial numbers of the embodiments of the present application are merely for the description, and do not represent the advantages and disadvantages of the embodiments.
在本申请的上述实施例中,对各个实施例的描述都各有侧重,某个实施例中没有详述的部分,可以参见其他实施例的相关描述。In the above-mentioned embodiments of the present application, the descriptions of the various embodiments are different, and the parts that are not detailed in a certain embodiment can be referred to the related descriptions of other embodiments.
在本申请所提供的几个实施例中,应该理解到,所揭露的技术内容,可通过其它的方式实现。其中,以上所描述的装置实施例仅仅是示意性的,例如所述单元的划分,可以为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个***,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,单元或模块的间接耦合或通信连接,可以是电性或其它的形式。In the several embodiments provided by the present application, it should be understood that the disclosed technical contents may be implemented in other manners. The device embodiments described above are only schematic. For example, the division of the unit may be a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, unit or module, and may be electrical or otherwise.
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的形式实现。In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一 台计算机设备(可为个人计算机、服务器或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application, in essence or the contribution to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. , including a number of instructions to make one The computer device (which may be a personal computer, server or network device, etc.) performs all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes: a U disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk, and the like. .
以上所述仅是本申请的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本申请原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视为本申请的保护范围。 The above description is only a preferred embodiment of the present application, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present application. It should be considered as the scope of protection of this application.

Claims (16)

  1. 一种电池切换的方法,包括:A method of battery switching, comprising:
    采用第一供电电路中第一电池对负载进行供电,其中,所述第一供电电路为至少两个供电电路中任意一个,所述第一电池的电压大于预设电压;The first battery is powered by the first battery in the first power supply circuit, wherein the first power supply circuit is any one of the at least two power supply circuits, and the voltage of the first battery is greater than a preset voltage;
    在所述第一电池对所述负载供电的过程中,检测所述第一电池的电压;Detecting a voltage of the first battery during a process in which the first battery supplies power to the load;
    当检测出所述第一电池的电压大于所述预设电压时,继续采用所述第一电池对所述负载供电;When detecting that the voltage of the first battery is greater than the preset voltage, continuing to supply power to the load by using the first battery;
    当检测出所述第一电池的电压小于或者等于所述预设电压时,先控制第二供电电路中第二电池对所述负载供电,再控制所述第一电池停止对所述负载供电,其中,所述第二供电电路为所述至少两个供电电路中不同于所述第一供电电路的任意一个供电电路,所述第二电池的电压大于所述预设电压。When detecting that the voltage of the first battery is less than or equal to the preset voltage, first controlling a second battery in the second power supply circuit to supply power to the load, and then controlling the first battery to stop supplying power to the load, The second power supply circuit is any one of the at least two power supply circuits different from the first power supply circuit, and the voltage of the second battery is greater than the preset voltage.
  2. 根据权利要求1所述的方法,其中,在控制第二供电电路中第二电池对所述负载供电之前,所述方法还包括:The method of claim 1, wherein the method further comprises: before controlling the second battery to supply power to the load in the second power supply circuit, the method further comprising:
    阻断所述第二供电电路和所述第一供电电路,以阻止所述第二供电电路向所述第一供电电路供电。Blocking the second power supply circuit and the first power supply circuit to prevent the second power supply circuit from supplying power to the first power supply circuit.
  3. 根据权利要求1所述的方法,其中,采用第一供电电路中第一电池对负载进行供电包括:The method of claim 1 wherein powering the load with the first battery in the first power supply circuit comprises:
    对所述第一供电电路中供电电流进行限流,得到第一电流;Current limiting the supply current in the first power supply circuit to obtain a first current;
    利用所述第一电流对所述负载进行供电;Powering the load with the first current;
    检测所述负载两端的电压与所述第一电池的电压的比例是否达到预设阈值;Detecting whether a ratio of a voltage across the load to a voltage of the first battery reaches a preset threshold;
    在所述负载两端的电压与所述第一电池的电压的比例达到所述预设阈值时,停止对所述供电电流的限流,并利用所述供电电流对所述负载供电。When the ratio of the voltage across the load to the voltage of the first battery reaches the predetermined threshold, the current limiting of the supply current is stopped, and the load is used to supply power to the load.
  4. 根据权利要求3所述的方法,其中,先控制第二供电电路中第二电池对所述负载供电,再控制所述第一电池停止对所述负载供电包括:The method according to claim 3, wherein first controlling the second battery in the second power supply circuit to supply power to the load, and then controlling the first battery to stop supplying power to the load comprises:
    对所述第二供电电路中供电电流进行限流,得到第二电流;Restricting a supply current in the second power supply circuit to obtain a second current;
    利用所述第二电流对所述负载进行供电;Powering the load with the second current;
    检测所述负载两端的电压与所述第二电池的电压的比例是否达到所述预设阈 值;Detecting whether a ratio of a voltage across the load to a voltage of the second battery reaches the preset threshold value;
    在所述负载两端的电压与所述第二电池的电压的比例达到所述预设阈值时,停止对所述供电电流的限流,并利用所述供电电流对所述负载供电;Stopping the current limit of the supply current when the ratio of the voltage across the load to the voltage of the second battery reaches the preset threshold, and powering the load by using the supply current;
    在利用所述供电电流对所述负载供电之后,控制所述第一电池停止对所述负载供电。After powering the load with the supply current, the first battery is controlled to stop supplying power to the load.
  5. 根据权利要求1所述的方法,其中,在采用第一供电电路中第一电池对负载进行供电之前,所述方法还包括:The method of claim 1, wherein the method further comprises: prior to powering the load by the first battery in the first power supply circuit, the method further comprising:
    从所述至少两个供电电路中任意选择一个目标供电电路;Selecting a target power supply circuit arbitrarily from the at least two power supply circuits;
    检测所述目标供电电路中电池的电压是否大于预设电压;Detecting whether a voltage of the battery in the target power supply circuit is greater than a preset voltage;
    在所述目标供电电路中电池的电压大于所述预设电压时,将所述目标供电电路作为所述第一供电电路。When the voltage of the battery in the target power supply circuit is greater than the preset voltage, the target power supply circuit is used as the first power supply circuit.
  6. 一种供电电路的切换***,包括:A switching system for a power supply circuit, comprising:
    负载;load;
    至少两个供电电路,所述至少两个供电电路之间并联连接,每一个所述供电电路与所述负载串联连接,At least two power supply circuits, the at least two power supply circuits being connected in parallel, each of the power supply circuits being connected in series with the load
    其中,每一个所述供电电路的电路组成相同,每一个所述供电电路包括电池、第一开关,其中所述第一开关的第一端与所述电池的正极相耦合,所述第一开关的第二端与所述负载的正极相耦合,在所述第一开关闭合时,由所述供电电路中的所述电池为所述负载供电,所述供电电路还包括:The circuit of each of the power supply circuits has the same composition, and each of the power supply circuits includes a battery and a first switch, wherein a first end of the first switch is coupled to a positive pole of the battery, and the first switch The second end is coupled to the positive pole of the load, and when the first switch is closed, the battery is powered by the battery in the power supply circuit, the power supply circuit further includes:
    第二开关和二极管,所述第二开关与所述二极管并联连接,所述第一开关与并联后的所述第二开关和所述二极管串联,其中,所述二极管的正极与所述电池的正极相耦合,所述二极管的第二端与所述负载的正极相耦合;a second switch and a diode, the second switch being connected in parallel with the diode, the first switch being in series with the second switch and the diode connected in parallel, wherein a positive pole of the diode and the battery a positive electrode coupled, the second end of the diode being coupled to the positive electrode of the load;
    其中,在进行供电电路的切换时,先将当前供电电路中的第二开关断开,然后控制另外一个供电电路的第一开关和第二开关闭合,以采用另外一个供电电路对负载供电,最后再将原供电电路的第一开关和第二开关断开。Wherein, when switching the power supply circuit, the second switch in the current power supply circuit is first turned off, and then the first switch and the second switch of the other power supply circuit are controlled to be closed, so that another power supply circuit is used to supply power to the load, and finally The first switch and the second switch of the original power supply circuit are then disconnected.
  7. 根据权利要求6所述的切换***,其中,所述供电电路还包括:The switching system of claim 6, wherein the power supply circuit further comprises:
    第三开关和预充电阻,所述第三开关与所述预充电阻并联,所述第一开关与并联后的所述第三开关和所述预充电阻串联,其中,所述预充电阻的第一端与所 述电池的正极相耦合,所述预充电阻的第二端与所述负载的正极相耦合。a third switch and a pre-charge resistor, wherein the third switch is connected in parallel with the pre-charge resistor, the first switch is connected in series with the third switch and the pre-charge resistor in parallel, wherein the pre-charge resistor First end and The positive electrode of the battery is coupled, and the second end of the pre-charge resistor is coupled to the positive electrode of the load.
  8. 根据权利要求6所述的切换***,其中,所述供电电路还包括:The switching system of claim 6, wherein the power supply circuit further comprises:
    第四开关,所述第四开关的第一端与所述电池的负极相连接,所述第四开关的第二端与所述负载的负极相连接,在所述第一开关和所述第四开关闭合时,由所述供电电路中的所述电池为所述负载供电。a fourth switch, a first end of the fourth switch being connected to a negative pole of the battery, a second end of the fourth switch being connected to a negative pole of the load, in the first switch and the first When the four switches are closed, the battery is powered by the battery in the power supply circuit.
  9. 一种用于权利要求6至8任一项所述切换***的供电电路的切换方法,包括:A method for switching a power supply circuit for a switching system according to any one of claims 6 to 8, comprising:
    控制第一供电电路的第一开关和所述第一供电电路的第四开关闭合,其中,所述第一供电电路为所述至少两个供电电路中的任意一个,所述第一供电电路的电池的电压大于预设电压;Controlling that the first switch of the first power supply circuit and the fourth switch of the first power supply circuit are closed, wherein the first power supply circuit is any one of the at least two power supply circuits, and the first power supply circuit The voltage of the battery is greater than a preset voltage;
    在所述第一供电电路的第一开关和所述第一供电电路的第四开关闭合之后,检测所述第一供电电路的电池的电压;After the first switch of the first power supply circuit and the fourth switch of the first power supply circuit are closed, detecting a voltage of a battery of the first power supply circuit;
    当检测出所述第一供电电路的电池的电压大于所述预设电压时,保持所述第一供电电路的第一开关和所述第一供电电路的第四开关闭合;When detecting that the voltage of the battery of the first power supply circuit is greater than the preset voltage, maintaining the first switch of the first power supply circuit and the fourth switch of the first power supply circuit are closed;
    当检测出所述第一供电电路的电池的电压小于或者等于所述预设电压时,先控制第二供电电路的第一开关和所述第二供电电路的第四开关闭合,然后再控制所述第一供电电路的第一开关和所述第一供电电路的第四开关断开,其中,所述第二供电电路为所述至少两个供电电路中不同于所述第一供电电路的任意一个供电电路,所述第二供电电路的电池的电压大于所述预设电压。When detecting that the voltage of the battery of the first power supply circuit is less than or equal to the preset voltage, first controlling the first switch of the second power supply circuit and the fourth switch of the second power supply circuit to be closed, and then controlling the The first switch of the first power supply circuit and the fourth switch of the first power supply circuit are disconnected, wherein the second power supply circuit is any of the at least two power supply circuits different from the first power supply circuit a power supply circuit, wherein a voltage of a battery of the second power supply circuit is greater than the preset voltage.
  10. 根据权利要求9所述的切换方法,其中,所述供电电路包括第二开关和二极管,The switching method according to claim 9, wherein said power supply circuit comprises a second switch and a diode,
    控制第一供电电路的第一开关和所述第一供电电路的第四开关闭合之前,所述方法还包括:控制所述第一供电电路的第二开关闭合;Before controlling the first switch of the first power supply circuit and the fourth switch of the first power supply circuit to be closed, the method further includes: controlling the second switch of the first power supply circuit to be closed;
    在控制第二供电电路的第一开关和所述第二供电电路的第四开关闭合之前,所述方法还包括:控制所述第一供电电路的第二开关断开,以利用所述二极管阻断所述第一供电电路和所述第二供电电路。Before controlling the first switch of the second power supply circuit and the fourth switch of the second power supply circuit to be closed, the method further includes: controlling a second switch of the first power supply circuit to be turned off to utilize the diode resistance Disconnecting the first power supply circuit and the second power supply circuit.
  11. 根据权利要求9所述的切换方法,其中,所述供电电路包括第三开关和预充电阻,在控制第一供电电路的第一开关和所述第一供电电路的第四开关闭合之前,所述方法还包括:The switching method according to claim 9, wherein said power supply circuit comprises a third switch and a precharge resistor, before controlling the first switch of the first power supply circuit and the fourth switch of the first power supply circuit to be closed The method also includes:
    控制所述第一供电电路的第三开关断开;Controlling that the third switch of the first power supply circuit is turned off;
    检测所述负载两端的电压与所述第一供电电路中电池的电压的比例是否达到 预设阈值;Detecting whether a ratio of a voltage across the load to a voltage of a battery in the first power supply circuit reaches Preset threshold
    在所述负载两端的电压与所述第一供电电路中电池的电压的比例达到所述预设阈值时,控制所述第一供电电路的第三开关闭合。The third switch of the first power supply circuit is controlled to be closed when the ratio of the voltage across the load to the voltage of the battery in the first power supply circuit reaches the predetermined threshold.
  12. 根据权利要求11所述的切换方法,其中,The switching method according to claim 11, wherein
    在控制第二供电电路的第一开关和所述第二供电电路的第四开关闭合之前,所述方法还包括:控制所述第二供电电路的第三开关断开;Before controlling the first switch of the second power supply circuit and the fourth switch of the second power supply circuit to be closed, the method further includes: controlling a third switch of the second power supply circuit to be turned off;
    在控制第二供电电路的第一开关和所述第二供电电路的第四开关闭合之后,所述方法还包括:检测所述负载两端的电压与所述第二供电电路中电池的电压比例是否达到所述预设阈值;在所述负载两端的电压与所述第二供电电路中电池的电压比例达到所述预设阈值时,控制所述第二供电电路的第三开关闭合;在控制所述第二供电电路的第三开关闭合之后,控制所述第一供电电路的第一开关和所述第一供电电路的第四开关断开。After controlling the first switch of the second power supply circuit and the fourth switch of the second power supply circuit to be closed, the method further includes: detecting whether a voltage between the voltage across the load and a voltage of a battery in the second power supply circuit is The preset threshold is reached; when the voltage between the voltage across the load and the voltage of the battery in the second power supply circuit reaches the preset threshold, the third switch of the second power supply circuit is controlled to be closed; After the third switch of the second power supply circuit is closed, the first switch that controls the first power supply circuit and the fourth switch of the first power supply circuit are turned off.
  13. 一种电池的切换装置,其中,包括:A battery switching device, comprising:
    第一供电单元,设置为采用第一供电电路中第一电池对负载进行供电,其中,所述第一供电电路为至少两个供电电路中任意一个,每一个所述供电电路的电路组成相同,所述第一电池的电压大于预设电压;The first power supply unit is configured to supply power to the load by using the first battery in the first power supply circuit, wherein the first power supply circuit is any one of the at least two power supply circuits, and the circuit composition of each of the power supply circuits is the same. The voltage of the first battery is greater than a preset voltage;
    检测单元,设置为在所述第一电池对所述负载供电的过程中,检测所述第一电池的电压;a detecting unit configured to detect a voltage of the first battery during a process in which the first battery supplies power to the load;
    第二供电单元,设置为在检测出所述第一电池的电压大于所述预设电压时,继续采用所述第一电池对所述负载供电;The second power supply unit is configured to continue to use the first battery to supply power to the load when detecting that the voltage of the first battery is greater than the preset voltage;
    第三供电单元,设置为在检测出所述第一电池的电压小于或者等于所述预设电压时,先控制第二供电电路中第二电池对所述负载供电,再控制所述第一电池停止对所述负载供电,其中,所述第二供电电路为所述至少两个供电电路中不同于所述第一供电电路的任意一个供电电路,所述第二电池的电压大于所述预设电压。The third power supply unit is configured to: when detecting that the voltage of the first battery is less than or equal to the preset voltage, first controlling a second battery in the second power supply circuit to supply power to the load, and then controlling the first battery Stopping power supply to the load, wherein the second power supply circuit is any one of the at least two power supply circuits different from the first power supply circuit, and the voltage of the second battery is greater than the preset Voltage.
  14. 根据权利要求13所述的装置,其中,所述装置还包括:The device of claim 13 wherein said device further comprises:
    阻断单元,设置为在控制第二供电电路中第二电池对所述负载供电之前,阻断所述第二供电电路和所述第一供电电路,以阻止所述第二供电电路向所述第一供电电路供电。 a blocking unit configured to block the second power supply circuit and the first power supply circuit to block the second power supply circuit from being in the second power supply circuit before the second battery supplies power to the load The first power supply circuit supplies power.
  15. 一种存储介质,所述存储介质包括存储的程序,其中,所述程序执行权利要求1至5中任意一项所述的电池切换的方法和权利要求9至12中任意一项所述的供电电路的切换方法。A storage medium, the storage medium comprising a stored program, wherein the program performs the battery switching method according to any one of claims 1 to 5 and the power supply according to any one of claims 9 to 12. Circuit switching method.
  16. 一种处理器,所述处理器用于运行程序,其中,所述程序运行时执行权利要求1至5中任意一项所述的电池切换的方法和权利要求9至12中任意一项所述的供电电路的切换方法。 A processor for operating a program, wherein the program is operative to perform the battery switching method according to any one of claims 1 to 5, and the method of any one of claims 9 to 12. The switching method of the power supply circuit.
PCT/CN2017/113514 2017-04-17 2017-11-29 Battery switching method and apparatus, and switching system and method for power supply circuit WO2018192224A1 (en)

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