WO2020048486A1 - Climatiseur de stationnement, et système de commande d'alimentation électrique et procédé de commande de fonctionnement correspondant - Google Patents

Climatiseur de stationnement, et système de commande d'alimentation électrique et procédé de commande de fonctionnement correspondant Download PDF

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Publication number
WO2020048486A1
WO2020048486A1 PCT/CN2019/104411 CN2019104411W WO2020048486A1 WO 2020048486 A1 WO2020048486 A1 WO 2020048486A1 CN 2019104411 W CN2019104411 W CN 2019104411W WO 2020048486 A1 WO2020048486 A1 WO 2020048486A1
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WIPO (PCT)
Prior art keywords
power supply
power
air conditioner
output
supply module
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PCT/CN2019/104411
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English (en)
Chinese (zh)
Inventor
张建雄
王祯祯
曾福祥
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青岛海尔空调器有限总公司
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Publication of WO2020048486A1 publication Critical patent/WO2020048486A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses

Definitions

  • the invention relates to the technical field of automobile air conditioners, and in particular to a parking air conditioner, a power supply control system thereof, and an operation control method.
  • the vehicle air conditioner mainly uses the driving power of the car (such as an engine) to drive the compressor to achieve cooling or heating, so the vehicle air conditioner will not continue to work when the vehicle is stopped.
  • parking air conditioners are mainly installed in cars to meet the cooling or heating needs during parking.
  • the electric energy storage device of the automobile is used to control the rotation of the compressor of the parking air conditioner to achieve cooling or heating.
  • the control voltage of the parking air conditioner is often AC with a higher voltage value (such as AC with a voltage of 220V and a frequency of 50Hz).
  • An additional booster must be provided to boost the output energy of the electric energy storage device to control it.
  • the compressor of the parking air conditioner rotates.
  • an additional booster device not only increases the cost and structural complexity of the parking air conditioner, but also is not conducive to the energy management of the electric energy storage device (that is, it is necessary to monitor the power changes of the booster device and the electric energy storage device to The energy storage device performs power management).
  • the present invention provides a parking air conditioner, a power supply control system thereof, and an operation control method.
  • a power supply control system for a parking air conditioner mainly includes a power supply device and a power conversion device;
  • An input side of the electric power supply device is connected to an output side of an in-vehicle electric energy storage device, an output side of the electric power supply device is connected to an input side of the electric energy conversion device, and the electric power supply device is used to connect the electric power
  • the direct current output from the energy storage device is converted into direct current of a specific voltage amplitude
  • the output side of the electric energy conversion device is connected to the parking air conditioner, and the electric energy conversion device is configured to convert the direct current output by the electric power supply device into at least one voltage of direct current and convert the converted direct current Output to the parking air conditioner;
  • the specific voltage amplitude depends on the maximum operating voltage of the air-conditioning component in the parking air conditioner, and the voltage amplitude of the DC power output by the electric energy conversion device depends on the operating voltage of each of the air-conditioning components.
  • the power supply device includes a first power supply module, and the power conversion device includes a first power conversion module;
  • An input side of the first power supply module is connected to an output side of the electric energy storage device, an output side of the first power supply module is connected to an input side of the first power conversion module, and the first power The power supply module is configured to convert the direct current output by the electric energy storage device into direct current having a first voltage amplitude;
  • the output side of the first power conversion module is connected to the indoor unit of the parking air conditioner, and the first power conversion module is configured to convert the DC power output by the first power supply module to at least one voltage amplitude. Direct current and outputting the converted direct current to the indoor unit;
  • the first voltage amplitude depends on the maximum operating voltage of the air-conditioning component of the indoor unit, and the voltage amplitude of the DC power output by the first power conversion module depends on the work of each air-conditioning component in the indoor unit. Voltage.
  • the first power supply module includes a first protection circuit, a first switch circuit, and a first filter circuit;
  • the first protection circuit includes a first transient suppression diode, a first thermistor, a first inductor, and a first capacitor; the first transient suppression diode is connected in antiparallel to the input side of the first electric power supply module.
  • the first capacitor is connected in parallel with the output side of the first power supply module; one end of the first thermistor is connected to the positive side of the input side of the first power supply module, and the The other end is connected to one end of the first inductor, and the other end of the first inductor is connected to the positive electrode of the first capacitor;
  • the first switching circuit includes a power semiconductor device disposed between an input-side negative electrode and an output-side negative electrode of the first electric power supply module;
  • the first filter circuit includes a first filter capacitor connected in parallel with the output side of the first power supply module.
  • the first power conversion module includes a first DC step-down circuit and a second DC step-down voltage circuit
  • the input side of the first DC step-down circuit is connected to the output side of the first power supply module, and the output side of the first DC step-down circuit is connected to a part of the air-conditioning components of the indoor unit and to The input side of the second DC step-down circuit is connected; the first DC step-down circuit is used to step down the DC power output by the first power supply module and output the stepped down DC power to the A part of the air-conditioning component and the second DC step-down circuit;
  • the output side of the second DC step-down circuit is connected to another part of the air conditioner of the indoor unit.
  • the second DC step-down circuit is used to step down the DC power output by the first DC step-down circuit and And outputting the stepped-down DC power to the other part of the air-conditioning component.
  • the power supply device includes a second power supply module, and the power conversion device includes a second power conversion module;
  • An input side of the second power supply module is connected to an output side of the electric energy storage device, an output side of the second power supply module is connected to an input side of the second power conversion module, and the second power The power supply module is configured to convert the direct current output by the electric energy storage device into direct current having a second voltage amplitude;
  • the output side of the second power conversion module is connected to the outdoor unit of the parking air conditioner, and the second power conversion module is configured to convert the DC power output by the second power supply module to at least one voltage amplitude. Direct current and outputting the converted direct current to the outdoor unit;
  • the second voltage amplitude depends on the maximum operating voltage of the air-conditioning component of the outdoor unit, and the voltage amplitude of the DC power output by the second power conversion module depends on the work of each air-conditioning component in the outdoor unit. Voltage.
  • the second power supply module includes a second protection circuit and a second filter circuit
  • the second protection circuit includes a first power semiconductor device and a second power semiconductor device; a first main electrode of the first power semiconductor device is connected to an input-side negative electrode of the second power supply module, and the first power The second main electrode of the semiconductor device is connected to the negative side of the output side of the second power supply module, and the control electrode of the first power semiconductor device is connected to the positive side of the input side of the second power supply module through a first current limiting resistor.
  • a first main electrode of the second power semiconductor device is connected to an input side negative electrode of the second power supply module, and a second main electrode of the second power semiconductor device is connected to an output side of the second power supply module
  • the negative electrode is connected, and the control electrode of the second power semiconductor device is connected to the input side positive electrode of the second electric power supply module through a second current limiting resistor;
  • the second filter circuit includes a plurality of second filter capacitors connected in parallel with the output side of the second electric power supply module.
  • the second power conversion module includes a third DC step-down circuit and a fourth DC step-down circuit
  • the input side of the third DC step-down circuit is connected to the output side of the second power supply module, and the output side of the third DC step-down circuit is connected to a part of the air-conditioning components of the outdoor unit and to the first
  • the input side of the four DC step-down circuit is connected;
  • the third DC step-down circuit is used to step down the DC power output by the second electric power supply module and output the stepped down DC power to the part of the air conditioner And a fourth DC step-down circuit;
  • the output side of the fourth DC step-down circuit is connected to another part of the air conditioner of the outdoor unit.
  • the fourth DC step-down circuit is used to step down the DC power output by the third DC step-down circuit and The reduced-voltage DC power is output to the other part of the air-conditioning component.
  • a parking air conditioner provided by the present invention mainly includes an indoor unit and an outdoor unit and the power supply control system for a parking air conditioner according to any one of the above technical solutions.
  • an operation control method of a parking air conditioner mainly includes the following steps:
  • the steps of "matching the control strategy corresponding to the voltage based on the one-to-one correspondence between the preset voltage interval and the preset control strategy and according to the voltage of the electric energy storage device currently detected" include:
  • the control strategy corresponding to U dc is to control the high-frequency operation of the compressor of the parking air conditioner when the temperature difference between the ambient temperature in the vehicle and the temperature threshold is greater than or equal to the temperature set value. Controlling the parking air conditioner to turn off when the temperature difference is less than the temperature setting value;
  • the control strategy corresponding to U dc is to control the low-frequency operation of the compressor of the parking air conditioner and increase the frequency when the temperature difference is greater than or equal to the temperature set value.
  • the indoor unit wind speed of the parking air conditioner controls the parking air conditioner to turn off when the temperature difference is less than the temperature set value;
  • U dc is a voltage of the electric energy storage device
  • U 1 and U h are respectively a preset lower voltage limit value and a preset upper voltage limit value.
  • the power supply control system mainly includes a power supply device and a power conversion device.
  • the electric power supply device can convert the direct current output from the electric energy storage device (such as a battery) in the car into a direct current with a specific voltage amplitude (the specific voltage amplitude depends on the maximum operating voltage of the air conditioning components in the parking air conditioner.
  • the specific voltage The amplitude is equal to the maximum working voltage of the air-conditioning component.
  • the power conversion device can convert the DC power output from the power supply device into at least one voltage with a DC amplitude. (The voltage amplitude depends on the working voltage of each air-conditioning component, such as the air-conditioning component.
  • the working voltage is 24V, 12V, 12V, 5V, and 5V, respectively, and the power conversion device can output DC power with a voltage amplitude of 24V, 12V, and 5V).
  • the above-mentioned power supply control system can directly output the direct current output from the electric energy storage device in the vehicle to the parking air conditioner, or reduce the direct current to the parking air conditioner. Therefore, there is no need to provide an additional booster circuit to boost the power output from the electric energy storage device, and then convert the boosted power into the power required by the parking air conditioner to control its normal operation.
  • the above power supply control system can be used to control
  • the electric energy storage device directly supplies power to the parking air conditioner, thereby reducing the cost and structural complexity of the parking air conditioner.
  • the use of the electric energy storage device to directly supply power to the parking air conditioner is also conducive to adjusting the operation mode of the parking air conditioner according to the electric energy change of the electric energy storage device.
  • the parking air conditioning operation control method mainly includes the following steps: First, based on a one-to-one correspondence between a preset voltage interval and a preset control strategy, and matching based on the voltage of the currently detected electric energy storage device, Control strategy corresponding to the output voltage. Then, the parking air conditioner is controlled to execute the operation operation specified by the matched control strategy. Based on the above steps, the present invention can flexibly adjust the operating frequency of the compressor of the parking air conditioner and / or the wind speed of the indoor unit according to the voltage change of the electric energy storage device, and can also control after the voltage of the electric energy storage device is lower than a certain value The parking air conditioner is turned off to ensure that the remaining energy of the electric energy storage device can maintain the normal operation of the vehicle.
  • FIG. 1 is a schematic structural diagram of a power supply control system for a parking air conditioner according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of the main structures of the power supply device and the power conversion device shown in FIG. 1;
  • FIG. 2 is a schematic diagram of the main structures of the power supply device and the power conversion device shown in FIG. 1;
  • FIG. 3 is a schematic structural diagram of a first electric power supply module according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a first DC step-down circuit in an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a second DC step-down voltage circuit according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a second electric power supply module according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of a main structure of a third DC step-down circuit in an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a fourth DC step-down voltage circuit according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of main steps of a method for controlling a parking air conditioner in an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of main steps of another operation control method of a parking air conditioner according to an embodiment of the present invention.
  • FIG. 1 exemplarily illustrates a main structure of a parking air-conditioning power supply control system in this embodiment.
  • the input side of the parking air conditioning power supply control system 2 is connected to the in-vehicle electric energy storage device 1, and the output side of the parking air conditioning power supply control system 2 is connected to the parking air conditioner 3.
  • the parking air-conditioning power supply control system 2 mainly includes a power supply device 21 and a power conversion device 22.
  • the input side of the power supply device 21 is connected to the output side of the electric energy storage device 1
  • the output side of the power supply device 21 is connected to the input side of the power conversion device 22, and the output side of the power conversion device 22 is connected to the parking air conditioner 3 connection.
  • the electric power supply device 21 can convert the direct current output from the electric energy storage device 1 into direct current having a specific voltage amplitude and send the converted direct current to the electric energy conversion device 22.
  • the power conversion device 22 can convert the DC power output by the power supply device 21 into at least one DC power with a voltage amplitude and output the converted DC power to the parking air conditioner 3.
  • the specific voltage amplitude in this embodiment depends on the maximum operating voltage of the air conditioning components in the parking air conditioner.
  • the specific voltage amplitude may be a maximum working voltage of an air-conditioning component (such as a fan, a compressor, a control panel, and the like).
  • the voltage amplitude of the DC power output from the power conversion device 22 depends on the operating voltage of each air-conditioning component. For example, if the parking air conditioner includes 5 air-conditioning components and the working voltages of the 5 air-conditioning components are 24V, 12V, 12V, 5V, and 5V, the power conversion device 22 can be used to convert the DC power output by the power supply device 21 into 24V, 12V and 5V DC.
  • FIG. 2 exemplarily shows the main structures of the power supply device 21 and the power conversion device 22 shown in FIG. 1.
  • the power supply device 21 mainly includes a first power supply module 211 and a second power supply module 212
  • the power conversion device 22 mainly includes a first power conversion module 221 and a second power conversion module 222.
  • the first power supply module 211 and the first power conversion module 221 are disposed on the indoor unit side of the parking air conditioner
  • the second power supply module 212 and the second power conversion module 222 are disposed on the outdoor unit side of the parking air conditioner.
  • the connection structure of the first power supply module 211 and the first power conversion module 221 on the indoor unit side is mainly: the input side of the first power supply module 211 is connected to the output side of the electric energy storage device 1, and the first The output side of the power supply module 211 is connected to the input side of the first power conversion module 221, and the output side of the first power conversion module 221 is connected to the indoor unit 31 of the parking air conditioner.
  • the first electric power supply module 211 may be used to convert the direct current output from the electric energy storage device 1 into a first voltage amplitude direct current
  • the first electric power conversion module 221 may be used to convert the direct current output from the first electric power supply module 211 to at least A type of direct current having a voltage amplitude and outputting the converted direct current to the indoor unit 31.
  • the first voltage amplitude depends on the maximum operating voltage of the air-conditioning component of the indoor unit.
  • the first voltage amplitude may be the maximum operating voltage of the air-conditioning component of the indoor unit.
  • the voltage amplitude of the DC power output by the first power conversion module 221 depends on the operating voltage of each air-conditioning component in the indoor unit. For example, if the indoor unit includes 5 air-conditioning components and the working voltages of the 5 air-conditioning components are 24V, 12V, 12V, 5V, and 5V, respectively, the first power conversion module 221 may be used to output the first power supply module 211.
  • the direct current is converted into direct current of 24V, 12V and 5V.
  • the first power supply module 211 shown in FIG. 2 in this embodiment may include a first protection circuit, a first switch circuit, and a first filter circuit.
  • FIG. 3 exemplarily illustrates a main structure of the first power supply module 211 in FIG. 2.
  • the first protection circuit may include a first transient suppression diode TVS, a first thermistor NTC, a first inductor L1, and a first capacitor C1.
  • the first transient suppression diode TVS and a first power supply module The input side (the input side composed of the positive terminal CN1 and the negative terminal CN2 in FIG.
  • the first capacitor C1 is connected in parallel with the output side (not shown) of the first power supply module, one end of the first thermistor NTC1 is connected to the input side positive electrode (positive terminal CN1) of the first power supply module, and the first The other end of a thermistor NTC1 is connected to one end of the first inductor L1, and the other end of the first inductor L1 is connected to the positive electrode of the first capacitor C1.
  • the first switching circuit may include a power semiconductor device T1 provided between the input-side negative electrode (negative terminal CN2) and the output-side negative electrode (not shown) of the first power supply module, and the first filter circuit may include power supply to the first power supply.
  • the output side (not shown) of the module is a first filter capacitor C2 connected in parallel.
  • the power semiconductor device T1 is a full-control power semiconductor device, such as a metal oxide semiconductor field effect transistor (Metal-Oxide-Semiconductor, Field-Effect Transistor, MOSFET), and an insulated gate bipolar transistor (Insulated Gate Bipolar Transistor). , IGBT) or integrated gate commutated thyristor (Integrated Gate, Commutated Thyristor, IGCT) and other devices. At the same time, these fully-controlled power semiconductor devices are three-terminal devices.
  • a metal oxide semiconductor field effect transistor Metal-Oxide-Semiconductor, Field-Effect Transistor, MOSFET
  • IGBT Insulated Gate Bipolar Transistor
  • IGBT integrated gate commutated thyristor
  • IGCT integrated Gate, Commutated Thyristor
  • a MOSFET includes a source, a drain, and a gate
  • an IGBT includes a collector, an emitter, and a gate
  • an IGCT includes a collector, an emitter, and a gate.
  • the source, the drain, the collector and the emitter are main electrodes
  • the gate and gate are control electrodes.
  • the main electrode in the power input direction of the power electronic device is described as the first main electrode (such as the drain of the MOSFET and the collector of the IGBT).
  • the electrode is described as the second main electrode (such as the source of the MOSFET and the emitter of the IGBT).
  • the first switching circuit further includes a diode in parallel with the power semiconductor device, that is, the cathode of the diode is connected to the first main electrode, and the anode of the diode is connected to the second main electrode.
  • the power semiconductor device T1 is a PMOS tube
  • the drain of the PMOS tube is connected to the cathode of the diode D1
  • the source of the PMOS tube is connected to the anode of the diode D1.
  • the first power conversion module 221 shown in FIG. 2 in this embodiment may include a first DC step-down circuit and a second DC step-down circuit.
  • the input side of the first DC step-down circuit is connected to the output side of the first power supply module, and the output side of the first DC step-down circuit is connected to a part of the air-conditioning components of the indoor unit and to the second DC step-down circuit. Input side connection.
  • the output side of the second DC step-down circuit is connected to another part of the air-conditioning component of the indoor unit.
  • the first DC step-down circuit may be used to step down the DC power output by the first electric power supply module and output the step-down DC power to the above-mentioned part of the air-conditioning component and the second DC step-down circuit.
  • the second DC step-down circuit can be used to step down the DC power output by the first DC step-down circuit and output the step-down DC power to the other part of the air conditioner.
  • FIG. 4 exemplarily illustrates a main structure of a first DC step-down circuit of this embodiment
  • FIG. 5 exemplarily illustrates a main structure of a second DC step-down circuit of this embodiment
  • the first DC step-down circuit and the second DC step-down circuit are both step-down circuits constructed by using an AOZ1282CI type step-down chip.
  • 24V DC power is converted into 12V DC power
  • the second DC step-down circuit can convert 12V DC power to 5V DC power.
  • the first DC step-down circuit mainly includes an AOZ1282CI type step-down chip IC1 and its peripheral circuits.
  • the peripheral circuit mainly includes resistor R1, resistor R2, resistor R3, resistor R4, resistor R5, resistor R6, capacitor C1, capacitor C2, capacitor C3, capacitor C4, capacitor C5, capacitor C6, capacitor C7, capacitor C8, inductor L1 and diode D1.
  • resistor R1 one end of the resistor R1 is grounded, and the other end of the resistor R1 is connected to the EN pin of the AOZ1282CI type buck chip IC1.
  • One end of the resistor R2 is connected to one end of the capacitor C1 and the + 24V power supply terminal, the other end of the resistor R2 is also connected to the EN pin, and the other end of the capacitor C1 is grounded.
  • the capacitor C2 is connected between the LX pin and the BST pin of the AOZ1282CI step-down chip IC1.
  • Inductor L1, capacitor C3 and resistor R6 are connected in series (for simplicity, the branch formed by series connection of inductor L1, capacitor C3 and resistor R6 is described as the first branch), capacitor C4 and capacitor C5 are connected in series (for simplicity, capacitor C4 is described
  • the branch formed in series with the capacitor C5 is described as the second branch), and the resistor R4, the resistor R5, and the resistor R6 are connected in series (for simplicity, the branch formed by the series connection of the resistor R4, the resistor R5, and the resistor R6 is described as the third branch) ),
  • the first branch, the second branch, the third branch, the capacitor C6, the capacitor C7, and the capacitor C8 are connected in parallel to form a parallel branch.
  • the FB pin of the AOZ1282CI step-down chip IC1 is connected between the capacitor C4 and the capacitor C5, and is connected between the resistor R4 and the resistor R5.
  • the LX pin of AOZ1282CI step-down chip IC1 is also connected between inductor L1 and capacitor C3, the cathode of diode D1 is also connected between inductor L1 and capacitor C3, and the anode of diode D1 is grounded.
  • the second DC step-down circuit mainly includes an AOZ1282CI type step-down chip IC1 and its peripheral circuits.
  • the peripheral circuit mainly includes resistor R1, resistor R2, resistor R3, resistor R4, resistor R5, resistor R6, capacitor C1, capacitor C2, capacitor C3, capacitor C4, capacitor C5, capacitor C6, capacitor C7, capacitor C8, capacitor C9, and inductor L1 and diode D1.
  • resistor R1 one end of the resistor R1 is grounded, and the other end of the resistor R1 is connected to the EN pin of the AOZ1282CI type buck chip IC1.
  • resistor R2 One end of the resistor R2 is connected to one end of the capacitor C1 and the + 12V power supply terminal, the other end of the resistor R2 is also connected to the EN pin, and the other end of the capacitor C1 is grounded.
  • the capacitor C2 is connected between the LX pin and the BST pin of the AOZ1282CI step-down chip IC1.
  • Inductor L1, capacitor C3 and resistor R6 are connected in series (for simplicity, the branch formed by series connection of inductor L1, capacitor C3 and resistor R6 is described as the first branch), resistor R4, resistor R5 and resistor R6 are connected in series (for simplicity of description, The branch formed by the series connection of the resistor R4, the resistor R5, and the resistor R6 is described as the second branch).
  • the first branch, the second branch, the capacitor C6, the capacitor C7, the capacitor C8, and the capacitor C9 are connected in parallel to form a parallel branch.
  • Capacitor C4 is connected in parallel with resistor R4, and capacitor C5 is connected in parallel with resistor R5.
  • the FB pin of the AOZ1282CI step-down chip IC1 is connected between the capacitor C4 and the capacitor C5, and is connected between the resistor R4 and the resistor R5.
  • the LX pin of AOZ1282CI step-down chip IC1 is also connected between inductor L1 and capacitor C3, the cathode of diode D1 is also connected between inductor L1 and capacitor C3, and the anode of diode D1 is grounded.
  • connection structure of the second electric power supply module 212 and the second electric power conversion module 222 on the outdoor unit side is mainly: the input side of the second electric power supply module 212 is connected to the output side of the electric energy storage device 1, and the second The output side of the power supply module 212 is connected to the input side of the second power conversion module 222, and the output side of the second power conversion module 222 is connected to the outdoor unit 32 of the parking air conditioner.
  • the second electric power supply module 212 may be used to convert the direct current output from the electric energy storage device 1 into a second voltage amplitude direct current, and the second electric power conversion module 222 is used to convert the direct current output from the second electric power supply module 212 into at least one This kind of DC voltage with a voltage amplitude is output to the outdoor unit 32 after conversion.
  • the second voltage amplitude depends on the maximum operating voltage of the air-conditioning component of the outdoor unit.
  • the second voltage amplitude may be the maximum operating voltage of the air-conditioning component of the outdoor unit.
  • the voltage amplitude of the DC power output by the second power conversion module 222 depends on the operating voltage of each air-conditioning component in the outdoor unit. For example, if the outdoor unit includes 5 air-conditioning components and the working voltages of the 5 air-conditioning components are 24V, 12V, 12V, 5V, and 5V, respectively, the second power conversion module 222 can be used to output the second power supply module 212.
  • the direct current is converted into direct current of 24V, 12V and 5V.
  • the second power supply module shown in FIG. 2 in this embodiment may include a second protection circuit and a second filter circuit.
  • the second protection circuit may include a first power semiconductor device and a second power semiconductor device.
  • a first main electrode of the first power semiconductor device is connected to an input-side negative electrode of the second power supply module.
  • the two main electrodes are connected to the output-side negative electrode of the second power supply module, and the control electrode of the first power semiconductor device is connected to the input-side positive electrode of the second power supply module through a first current limiting resistor.
  • the first main electrode of the second power semiconductor device is connected to the negative side of the input side of the second power supply module
  • the second main electrode of the second power semiconductor device is connected to the negative side of the output side of the second power supply module
  • the control electrode is connected to the input-side positive electrode of the second electric power supply module through a second current limiting resistor.
  • the second filter circuit may include a plurality of second filter capacitors connected in parallel with the output side of the second power supply module.
  • the first power semiconductor device and the second power semiconductor device are fully-controlled power semiconductor devices.
  • FIG. 6 exemplarily illustrates a main structure of the second power supply module in FIG. 2.
  • the second protection circuit may include a PMOS tube Q1 and a PMOS tube Q2.
  • the source of the PMOS tube Q1 is connected to the output side negative electrode (not shown) of the second power supply module, and the drain of the PMOS tube Q1 is connected to
  • the input negative electrode of the second power supply module (the negative terminal CN2 shown in FIG. 6) is connected, and the positive electrode of the PMOS tube Q1 is connected to the input side positive electrode of the second power supply module through the current limiting resistor R1 (the negative terminal CN1 shown in FIG. 6) connection.
  • the source of the PMOS tube Q2 is connected to the output side negative electrode (not shown) of the second power supply module, and the drain of the PMOS tube Q2 is connected to the input side negative electrode (the negative terminal CN2 shown in FIG. 6) of the second power supply module.
  • the positive electrode of the PMOS tube Q2 is connected to the input side positive electrode of the second electric power supply module through the current limiting resistor R2 (the negative terminal CN1) shown in FIG. 6).
  • the second filter circuit includes a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6, a capacitor C7, a capacitor C8, and a capacitor C9 respectively connected in parallel with an output side (not shown) of the second power supply module.
  • two power semiconductor devices are used to form a parallel shunt circuit, which can shunt the power supply current (such as the 24V input power shown in FIG. 6) input to the second power supply module to prevent damage to the power supply current when the power supply current is large.
  • the power supply current such as the 24V input power shown in FIG. 6
  • the second electric energy conversion module shown in FIG. 2 in this embodiment may include a third DC step-down voltage circuit and a fourth DC step-down voltage circuit.
  • the input side of the third DC step-down circuit is connected to the output side of the second electric power supply module, and the output side of the third DC step-down circuit is connected to a part of the air-conditioning components of the outdoor unit and the input of the fourth DC step-down circuit.
  • the output side of the fourth DC step-down circuit is connected to another part of the air conditioner of the outdoor unit.
  • the third DC step-down circuit can be used to step down the DC power output by the second power supply module and output the stepped-down DC power to the above-mentioned part of the air-conditioning component and the fourth DC step-down circuit.
  • the fourth DC step-down circuit can be used The step of reducing the direct current output from the third direct current step-down circuit and outputting the reduced direct current to the other part of the air-conditioning component.
  • FIG. 7 exemplarily illustrates a main structure of a third DC step-down circuit of this embodiment
  • FIG. 8 exemplarily illustrates a main structure of a fourth DC step-down circuit of this embodiment
  • the third DC step-down circuit and the fourth DC step-down circuit are both step-down circuits constructed by using AOZ1282CI type step-down chip.
  • the third DC step-down circuit can supply 24V DC Converted to 12V DC
  • the fourth DC step-down circuit can convert 12V DC to 5V DC.
  • the third DC step-down circuit mainly includes an AOZ1282CI type step-down chip IC2 and its peripheral circuits.
  • the peripheral circuit mainly includes resistor R7, resistor R8, resistor R9, resistor R10, resistor R11, resistor R12, capacitor C9, capacitor C10, capacitor C11, capacitor C12, capacitor C13, capacitor C14, capacitor C15, capacitor C16, inductor L2 and diode D2. Specifically, one end of the resistor R7 is grounded, and the other end of the resistor R7 is connected to the EN pin of the AOZ1282CI type step-down chip IC2.
  • the capacitor C10 is connected between the LX pin and the BST pin of the AOZ1282CI step-down chip IC2.
  • Inductor L2 capacitor C11 and resistor R9 are connected in series (for simplicity, the branch formed by series connection of inductor L2, capacitor C11 and resistor R9 is described as the first branch), capacitor C12 and capacitor C13 are connected in series (for simplicity of description, capacitor C12
  • the branch formed in series with the capacitor C13 is described as the second branch), and the resistor R10, the resistor R11, and the resistor R12 are connected in series (for the sake of simplicity, the branch formed by the series connection of the resistor R10, the resistor R11, and the resistor R12 is described as the third branch) ),
  • the first branch, the second branch, the third branch, the capacitor C14, the capacitor C15, and the capacitor C16 are connected in parallel to form a parallel branch.
  • the FB pin of the AOZ1282C2 buck IC1 is connected between the capacitor C12 and the capacitor C13, and is connected between the resistor R11 and the resistor R12.
  • the LX pin of AOZ1282CI step-down chip IC2 is also connected between inductor L2 and capacitor C11, the cathode of diode D2 is also connected between inductor L2 and capacitor C11, and the anode of diode D2 is grounded.
  • the fourth DC step-down circuit mainly includes an AOZ1282CI type step-down chip IC1 and its peripheral circuits.
  • the peripheral circuit mainly includes resistor R7, resistor R8, resistor R9, resistor R10, resistor R11, resistor R12, capacitor C10, capacitor C11, capacitor C12, capacitor C13, capacitor C14, capacitor C15, capacitor C16, capacitor C17, capacitor C18, inductor L2 and diode D2.
  • one end of the resistor R7 is grounded, and the other end of the resistor R7 is connected to the EN pin of the AOZ1282CI type step-down chip IC2.
  • resistor R8 One end of the resistor R8 is connected to one end of the capacitor C10 and the + 12V power supply terminal, the other end of the resistor R8 is also connected to the EN pin, and the other end of the capacitor C10 is grounded.
  • the capacitor C11 is connected between the LX pin and the BST pin of the AOZ1282CI step-down chip IC2.
  • Inductor L2, capacitor C12 and resistor R9 are connected in series (for simplicity, the branch formed by series connection of inductor L2, capacitor C12 and resistor R9 is described as the first branch), resistor R10, resistor R11 and resistor R12 are connected in series (for simplicity of description, The branch formed by the series connection of the resistor R10, the resistor R11, and the resistor R12 is described as the second branch).
  • the first branch, the second branch, the capacitor C15, the capacitor C16, the capacitor C17, and the capacitor C18 are connected in parallel to form a parallel branch.
  • the capacitor C13 is connected in parallel with the resistor R11
  • the capacitor C14 is connected in parallel with the resistor R12.
  • the FB pin of the AOZ1282CI step-down chip IC2 is connected between the capacitor C13 and the capacitor C14, and is connected between the resistor R11 and the resistor R12.
  • the LX pin of AOZ1282CI step-down chip IC2 is also connected between inductor L2 and capacitor C12, the cathode of diode D2 is also connected between inductor L2 and capacitor C12, and the anode of diode D2 is grounded.
  • the present invention also provides a parking air conditioner.
  • the parking air conditioner mainly includes an indoor unit, an outdoor unit, and a power supply control system for a parking air conditioner according to the above system embodiment.
  • the indoor unit mainly includes a fan, a fan driving device, a wind deflector, a wind deflector driving device, a control panel, and the like.
  • the fan driving device may be a 24V DC-driven brushless DC motor
  • the wind deflector driving device may be a 12V DC-driven stepping motor
  • the control layout may be a 5V DC-driven microprocessor or circuit.
  • the outdoor unit mainly includes a fan, a fan driving device, a compressor, and a control panel.
  • the fan driving device may be a brushless DC motor driven by 24V DC
  • the compressor may be a compressor driven by 24V AC
  • the control layout may be a microprocessor or circuit driven by 5V DC.
  • the electric energy of the electric energy storage device in the car can also be converted into 24V and 5V DC power supply the fan drive and control panel of the outdoor unit. At the same time, it can also invert 24V DC power to 24V AC power to the compressor.
  • the present invention also provides an operation control method for the parking air-conditioning according to the above-mentioned parking air-conditioning embodiment.
  • the operation control method is described below with reference to the drawings.
  • FIG. 9 exemplarily illustrates the main steps of a parking air conditioning operation control method in this embodiment.
  • the operation of the parking air conditioner can be controlled according to the following steps:
  • Step S101 Based on the one-to-one correspondence between the preset voltage interval and the preset control strategy and according to the voltage of the currently detected electric energy storage device, a control strategy corresponding to the voltage is matched.
  • the one-to-one correspondence between the preset voltage interval and the preset control strategy in this embodiment can be shown in Table 1 below:
  • U dc is the voltage of the electric energy storage device
  • U l and U h are the preset lower voltage limit and the preset upper voltage limit, respectively.
  • Step S102 controlling the parking air conditioner to execute the operation operation specified by the matched control strategy.
  • FIG. 10 exemplarily illustrates the main steps of a preferred implementation method of a parking air-conditioning operation control in this embodiment.
  • the operation of the parking air conditioner can be controlled according to the following steps:
  • Step S201 Detect the voltage of the electric energy storage device and the ambient temperature in the vehicle.
  • Step S202 Determine whether the voltage is greater than the upper voltage limit. Specifically, if the voltage of the electric energy storage device is greater than the upper voltage limit, the process goes to step S203. If the voltage of the electric energy storage device is less than or equal to the voltage upper limit value, go to step S205.
  • Step S203 Determine whether the temperature difference between the ambient temperature in the vehicle and the temperature threshold is greater than or equal to a temperature set value. Specifically, if the temperature difference is greater than or equal to the temperature setting value, the process proceeds to step S204. If the temperature difference is smaller than the temperature setting value, go to step S208.
  • Step S204 The high-frequency operation of the compressor of the parking air conditioner is controlled.
  • Step S205 It is determined whether the voltage is greater than a lower voltage limit. Specifically, if the voltage of the electric energy storage device is greater than the voltage lower limit value, the process goes to step S206. If the voltage of the electric energy storage device is less than or equal to the voltage lower limit value, go to step S208.
  • Step S206 Determine whether the temperature difference between the ambient temperature in the vehicle and the temperature threshold is greater than or equal to the temperature set value. Specifically, if the temperature difference is greater than or equal to the temperature setting value, the process proceeds to step S207. If the temperature difference is smaller than the temperature setting value, go to step S208.
  • Step S207 Control the compressor of the parking air conditioner to operate at a low frequency and increase the indoor unit wind speed of the parking air conditioner.
  • Step S208 Control the parking air conditioner to turn off.
  • the present invention can flexibly adjust the operating frequency of the compressor of the parking air conditioner and / or the wind speed of the indoor unit according to the voltage change of the electric energy storage device. After it is lower than a certain value, the parking air conditioner is controlled to shut down to ensure that the remaining energy of the electric energy storage device can maintain the normal operation of the vehicle.
  • the various component embodiments of the present invention may be implemented by hardware, or by software modules running on one or more processors, or by a combination thereof.
  • a microprocessor or a digital signal processor (DSP) may be used to implement some or all functions of some or all components in the server and client according to the embodiments of the present invention.
  • the invention may also be implemented as a device or device program (e.g., a PC program and a PC program product) for performing part or all of the method described herein.
  • a program that implements the present invention may be stored on a PC-readable medium or may have the form of one or more signals. Such signals can be downloaded from an Internet website, provided on a carrier signal, or provided in any other form.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Dc-Dc Converters (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

L'invention concerne un climatiseur de stationnement, et un système de commande d'alimentation électrique et un procédé de commande de fonctionnement correspondant. Le système de commande d'alimentation électrique comprend principalement un dispositif d'alimentation en énergie électrique (21) et un dispositif de conversion d'énergie électrique (22), le dispositif d'alimentation en énergie électrique (21) pouvant convertir un courant continu délivré par un dispositif de stockage d'énergie électrique embarqué (1) en un courant continu ayant une valeur d'amplitude de tension spécifique ; et le dispositif de conversion d'énergie électrique (22) pouvant convertir un courant continu délivré par le dispositif d'alimentation en énergie électrique (21) en un courant continu ayant au moins une valeur d'amplitude de tension. Le système de commande d'alimentation électrique peut délivrer directement le courant continu délivré par le dispositif de stockage d'énergie électrique embarqué (1) au climatiseur de stationnement, ou délivre le courant continu après réduction de la tension, de telle sorte que les coûts et la complexité de structure du climatiseur de stationnement sont réduits, et le mode de fonctionnement du climatiseur de stationnement peut également être ajusté en temps réel en fonction d'un changement d'énergie électrique du dispositif de stockage d'énergie électrique (1).
PCT/CN2019/104411 2018-09-05 2019-09-04 Climatiseur de stationnement, et système de commande d'alimentation électrique et procédé de commande de fonctionnement correspondant WO2020048486A1 (fr)

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CN117341432B (zh) * 2023-12-05 2024-03-08 珠海格力电器股份有限公司 一种驻车空调的控制方法、装置、驻车空调和存储介质

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