CN110549811A - Solar-based automobile air conditioner power supply system and vehicle - Google Patents

Solar-based automobile air conditioner power supply system and vehicle Download PDF

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Publication number
CN110549811A
CN110549811A CN201810556500.1A CN201810556500A CN110549811A CN 110549811 A CN110549811 A CN 110549811A CN 201810556500 A CN201810556500 A CN 201810556500A CN 110549811 A CN110549811 A CN 110549811A
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CN
China
Prior art keywords
voltage
low
air conditioner
air
conditioning
Prior art date
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Pending
Application number
CN201810556500.1A
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Chinese (zh)
Inventor
姜友爱
荆艳强
潘振利
王东峰
黄文辉
王云慧
王向阳
田韦斌
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Zhengzhou Yutong Bus Co Ltd
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Zhengzhou Yutong Bus Co Ltd
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Filing date
Publication date
Application filed by Zhengzhou Yutong Bus Co Ltd filed Critical Zhengzhou Yutong Bus Co Ltd
Priority to CN201810556500.1A priority Critical patent/CN110549811A/en
Publication of CN110549811A publication Critical patent/CN110549811A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00357Air-conditioning arrangements specially adapted for particular vehicles
    • B60H1/00385Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
    • B60H1/00392Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for electric vehicles having only electric drive means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00421Driving arrangements for parts of a vehicle air-conditioning
    • B60H1/00428Driving arrangements for parts of a vehicle air-conditioning electric
    • 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
    • B60L1/00Supplying electric power to auxiliary equipment of vehicles
    • 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
    • Y02T10/72Electric energy management in electromobility
    • 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
    • Y02T10/80Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/88Optimized components or subsystems, e.g. lighting, actively controlled glasses

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Transportation (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The invention relates to the technical field of vehicle energy, in particular to a solar-based automobile air conditioner power supply system and a vehicle. The air conditioner of the vehicle comprises air conditioner high-voltage electric equipment and air conditioner low-voltage electric equipment, an air conditioner power supply system comprises a high-voltage battery, a storage battery pack, a solar cell panel and a DC/DC converter connected with the high-voltage battery, the high-voltage battery is connected with the air conditioner high-voltage electric equipment through a high-voltage bus in a power supply mode, the storage battery pack is connected with the air conditioner low-voltage electric equipment through a low-voltage bus in a power supply mode, a low-voltage bus is connected with the output end of the DC/DC, the high-voltage bus is connected with the input end of the DC/DC, the solar cell panel is connected with the low-voltage bus through a photovoltaic power generation controller, the power supply of solar energy to the air conditioner is.

Description

Solar-based automobile air conditioner power supply system and vehicle
Technical Field
The invention relates to the technical field of vehicle air conditioners, in particular to a solar-based vehicle air conditioner power supply system and a vehicle.
Background
The prior vehicle is provided with air conditioning equipment for drivers and passengers to use to improve the comfort of the vehicle, and a patent document with Chinese patent publication No. CN107681884A discloses a vehicle air conditioning compressor and a vehicle, wherein the vehicle air conditioning compressor comprises: the compressor comprises a compressor shell, a high-voltage unit, a low-voltage unit and an alternating current permanent magnet synchronous motor, wherein the high-voltage unit, the low-voltage unit and the alternating current permanent magnet synchronous motor are arranged in the compressor shell; the high-voltage unit is connected with a power battery of the automobile; the low-voltage unit is connected with a low-voltage storage battery of the automobile; the low-voltage unit is connected with the high-voltage unit, and the high-voltage unit is connected with the alternating current permanent magnet synchronous motor; the shell of the high-voltage unit is in lap joint with the compressor shell through a wire harness, and the compressor shell is grounded. Supply power to the low voltage unit of air conditioner through the battery in this patent, can't guarantee supply voltage's stability, the lower extremely work that leads to low voltage unit easily of stability of low pressure power supply is often to the battery does not have power supply unit to supply power, leads to its insufficient voltage influence normal use extremely easily.
Meanwhile, in the technical field of pure electric vehicles, the battery capacity is the bottleneck influencing the technical development in the field, the vehicle endurance is seriously influenced, and for electric passenger cars, a large-area roof can be applied, and solar energy can be generated through a solar panel to supply the vehicles for use. The air conditioner is a large power user except for power of the whole vehicle, the use of the air conditioner directly influences the driving range of the whole vehicle, and the peak value of the power consumption of the air conditioner is strongly related to the solar sunshine intensity in most of time. With the popularization of solar energy utilization, cost reduction is obvious in recent years, and the solar energy utilization is a development trend of new energy. Therefore, the endurance of the vehicle can be well improved by using the solar energy in the vehicle for power generation, and resources can be effectively saved.
Disclosure of Invention
The invention aims to provide a solar-based automobile air conditioner power supply system and a vehicle, which are used for optimizing the problem that when the low-voltage power supply of the existing vehicle air conditioner is only carried out through a vehicle-mounted battery, the power consumption of the air conditioner is restrained and controlled due to the power consumption requirements of the power performance and the safety of the whole vehicle, the stability of the power consumption of the air conditioner cannot be ensured, and the air conditioner cannot be normally used finally.
In order to realize the power supply of the air conditioner by solar energy, simultaneously ensure the stability of the low-voltage power consumption of the air conditioner and optimize the problem that when the low-voltage power supply of the existing vehicle air conditioner is only supplied by a vehicle-mounted battery, the power consumption of a power supply is restricted and controlled due to the power consumption requirements of the power performance and the safety of the whole vehicle, the stability of the power consumption of the air conditioner cannot be ensured, and finally the air conditioner cannot be normally used, the invention provides a solar-based automobile air conditioner power supply system, which comprises a high-voltage battery and a storage battery pack, wherein the high-voltage battery is used for supplying power to be connected with high-voltage power consumption equipment of the air conditioner through a high-voltage bus, the storage battery pack is used for supplying power to be connected with the low-voltage power consumption equipment of the air conditioner through a low-voltage bus, a solar panel and a DC/, the solar panel is connected with the low-voltage bus through the photovoltaic power generation controller.
Further, in order to realize control over photovoltaic power generation, guarantee that the storage battery pack is not overcharged and prevent the storage battery pack from wasting electricity, a contact part of a photovoltaic relay is arranged between the photovoltaic power generation controller and the low-voltage bus, and a coil part of the photovoltaic relay is used for being connected with an air conditioner controller and/or a key switch.
Furthermore, in order to control the high-voltage battery to supply power to the air-conditioning high-voltage electric equipment and avoid supplying power to the high-voltage electric equipment for a long time to influence the endurance mileage of the vehicle, a contact part of a high-voltage relay is arranged between the high-voltage bus and the air-conditioning high-voltage electric equipment, and a coil part of the high-voltage relay is used for being connected with an air-conditioning controller.
Further, just open the air conditioner when the vehicle key starts in order to realize, the phenomenon that the air conditioner opened and leads to the battery insufficient voltage when avoiding not having external power supply, be provided with low voltage relay's contact part between low voltage bus and the air conditioner low pressure consumer, low voltage relay's coil part is used for connecting the key switch.
Furthermore, in order to realize the separate power supply of low-voltage low-power and low-voltage high-power electric appliances of the air conditioner, the power supply connection is reasonably controlled, the low-voltage bus comprises a first low-voltage branch and a second low-voltage branch, the first low-voltage branch is used for connecting at least an air conditioner controller and an air conditioner sensor in the low-voltage electric appliances of the air conditioner, the second low-voltage branch is used for connecting at least a fan set in the low-voltage electric appliances of the air conditioner, a contact part of a high-power relay is arranged on the second low-voltage branch, and a coil part of the high-power relay is used for connecting the.
In order to save energy, improve the endurance of the vehicle, ensure the stability of the air conditioner of the vehicle and improve the comfort of the vehicle, the invention provides a vehicle, which comprises an air conditioner and an air conditioner power supply system, the air conditioner comprises air conditioner high-voltage electric equipment and air conditioner low-voltage electric equipment, the air conditioner power supply system comprises a high-voltage battery and a storage battery pack, the high-voltage battery is connected with high-voltage electric equipment of the air conditioner through a high-voltage bus, the storage battery pack is connected with low-voltage electric equipment of the air conditioner through a low-voltage bus, the air conditioner power supply system also comprises a solar panel and a DC/DC converter connected with the high-voltage battery, the output end of the DC/DC converter is connected with the low-voltage bus, the input end of the DC/DC converter is connected with the high-voltage bus, and the solar panel is connected with the low-voltage bus through a photovoltaic power generation controller.
Further, in order to realize control over photovoltaic power generation, guarantee that the storage battery pack is not overcharged and prevent the storage battery pack from wasting power, a contact part of a photovoltaic relay is arranged between the photovoltaic power generation controller and a low-voltage bus, and a coil part of the photovoltaic relay is connected with a key switch and/or an air conditioner controller in air conditioner low-voltage electric equipment.
furthermore, in order to control the high-voltage battery to supply power to the air-conditioning high-voltage electric equipment and avoid supplying power to the high-voltage electric equipment for a long time to influence the endurance mileage of a vehicle, a contact part of a high-voltage relay is arranged between the high-voltage bus and the air-conditioning high-voltage electric equipment, and a coil part of the high-voltage relay is connected with an air-conditioning controller in the air-conditioning low-voltage electric equipment.
Further, just open the air conditioner when the vehicle key starts in order to realize, avoid not having external power supply time-interval air conditioner to open and lead to the phenomenon of battery insufficient voltage, this vehicle the contact part that is provided with low-voltage relay between low-voltage bus and the air conditioner low pressure consumer, low-voltage relay's coil part connects the key switch.
Further, in order to realize the separated power supply of low-voltage low-power and low-voltage high-power electric appliances of the air conditioner, the power supply connection is reasonably controlled, the low-voltage bus of the vehicle comprises a first low-voltage branch and a second low-voltage branch, the first low-voltage branch is connected with at least air conditioner sensors and the air conditioner controller in the low-voltage electric appliances of the air conditioner, the second low-voltage branch is connected with at least a fan set in the low-voltage electric appliances of the air conditioner, a contact part of a high-power relay is arranged on the second low-voltage branch, and a coil part of the high-power relay is connected with the air conditioner controller.
Drawings
FIG. 1 is a schematic diagram of the connection of a solar-based power supply system for an automotive air conditioner;
Fig. 2 is a control connection schematic diagram of a solar-based vehicle air conditioner power supply system.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The invention provides a vehicle, which comprises an air conditioner and an air conditioner power supply system, wherein the air conditioner comprises air conditioner high-voltage electric equipment and air conditioner low-voltage electric equipment, as shown in figure 1, the air conditioner power supply system comprises a high-voltage battery, a storage battery pack, a solar cell panel and a DC/DC converter connected with the high-voltage battery, the high-voltage battery is connected with the air conditioner high-voltage electric equipment through a high-voltage bus in a power supply mode, the storage battery pack is connected with the air conditioner low-voltage electric equipment through a low-voltage bus in a power supply mode, the output end of the DC/DC converter is connected with the low-voltage bus, the input end of the DC/DC converter is connected with the high-voltage bus, the solar cell panel is connected with the low-voltage bus through a photovoltaic power generation controller.
As shown in fig. 2, a contact portion of a photovoltaic relay 1 is provided between the photovoltaic power generation controller and the low-voltage bus, and a coil portion of the photovoltaic relay 1 is used for connecting an air conditioner controller and/or a key switch.
As shown in fig. 2, a contact portion of a high-voltage relay 2 is provided between a high-voltage bus and an air-conditioning high-voltage electric device, and a coil portion of the high-voltage relay 2 is used for connecting an air-conditioning controller.
As shown in fig. 2, a contact portion of a low-voltage relay 3 is provided between a low-voltage bus and an air-conditioning low-voltage electric device, and a coil portion of the low-voltage relay 3 is used for connecting a key switch.
As shown in fig. 2, the low-voltage power consumption equipment of the air conditioner is divided into low-voltage high-power consumption equipment of the air conditioner and low-voltage low-power consumption equipment of the air conditioner, wherein the low-voltage high-power consumption equipment of the air conditioner comprises a fan set, an electric heating wire and other high-power consumption equipment, and the fan set comprises a plurality of condensing fans of the air conditioner, a plurality of evaporating fans of the air conditioner and; the low-voltage low-power electric appliances of the air conditioner comprise low-power electric appliances such as an air conditioner controller and air conditioner sensors shown in fig. 2, wherein the air conditioner sensors comprise sensors such as an air conditioner pressure sensor, an evaporation temperature sensor, an in-vehicle temperature sensor, a water temperature sensor, an out-vehicle temperature sensor and a return air temperature sensor; the low-voltage bus comprises a first low-voltage branch and a second low-voltage branch, the first low-voltage branch is used for connecting at least an air conditioner controller and an air conditioner sensor in air conditioner low-voltage electric equipment, the second low-voltage branch is used for connecting at least a fan set in the air conditioner low-voltage electric equipment, a contact part of a high-power relay 4 is arranged on the second low-voltage branch, and a coil part of the high-power relay 4 is used for connecting the air conditioner controller.
The storage battery pack can also be charged by an external power supply device, in order to ensure the electric quantity of the storage battery pack, the storage battery pack can still be charged by electric energy when the solar battery does not work, and the external power supply device can be the high-voltage battery, so that the high-voltage battery is connected with the storage battery pack through a DC/DC converter as shown in figure 2, and the voltage U at two ends of the storage battery pack is less than the voltage U1 at the output end of the DC/DC converter.
The high-voltage battery can also meet the high-voltage power consumption of the whole vehicle, and the storage battery can meet the low-voltage power consumption of the whole vehicle, which is not described in the invention.
The above description of the vehicle through the power supply system is described below, and the installation of the solar panel in the vehicle, the power supply control principle of the air conditioner and the control process are specifically described below. The invention can be applied to all the existing vehicles, and the preferred vehicle is a pure electric vehicle for explanation.
The voltage of a power supply provided by a high-voltage battery system in the pure electric vehicle is generally above hundred volts, and a low-voltage power supply system is arranged in the pure electric vehicle and generally below 50 v.
Firstly, a solar energy receiving and converting device is arranged on the outer surface of the vehicle body to generate electricity. The solar panel photovoltaic power generation equipment is arranged on a place on the vehicle, such as the roof and the side surface of the vehicle, where the solar panel photovoltaic power generation equipment can receive the sun; therefore, the heat radiation of the sun to the whole vehicle can be reduced, the power consumption of an air conditioner is reduced, and the energy is indirectly saved; the heat insulation between the vehicle body and the environment is facilitated, the heat insulation effect on the whole vehicle is achieved, the power consumption of an air conditioner is reduced, and the energy is indirectly saved; the effective utilization of the area of the top or the area of the side surface of the vehicle is fully utilized to carry out solar photovoltaic power generation; under the condition that external charging or other energy supplement is difficult to receive, illumination energy is fully utilized to supplement energy for the automobile, the energy consumption of the whole automobile is used, and the endurance mileage of the pure point vehicle is effectively improved. Solar panels are used for photovoltaic power generation, which can use solar films.
The air conditioner of vehicle generally includes air conditioner high pressure consumer and air conditioner low pressure consumer, and wherein, air conditioner high pressure consumer includes compressor etc. and air conditioner low pressure consumer includes fan, air conditioner controller and temperature sensor etc. and heating wire and fan all belong to the high-power consumer of air conditioner low pressure.
As shown in fig. 2, the solar film performs photovoltaic power generation, and the solar photovoltaic power generation controller supplies power to the storage battery pack, the air conditioner controller, the air conditioner sensors, the air conditioner low-voltage high-power electric equipment and the whole vehicle low-voltage power. The whole vehicle high-voltage power supply supplies power to the storage battery pack, the air conditioner controller, the air conditioner sensors, the air conditioner low-voltage high-power electric equipment and the whole vehicle low-voltage power through the DC/DC converter.
The air conditioner power utilization adopts a dual-power supply system, so that the normal operation of the air conditioner system is ensured, and when the solar power generation capacity is smaller than the low-voltage power utilization of the air conditioner, the whole vehicle high-voltage power supply system carries out energy charging supplement on the whole vehicle low-voltage system, so that the normal work of the air conditioner low-voltage power utilization system is ensured; meanwhile, the storage battery pack is prevented from being lack of power, so that the storage battery is protected.
The whole vehicle high-voltage power supply directly supplies power to air conditioner high-voltage electric equipment, such as air conditioner compressors, heating equipment and the like, which require higher voltage power and high consumption energy, and the solar photovoltaic power generation obviously cannot meet the normal power consumption requirement; the high-voltage power supply is adopted, so that the minimization of the line diameter of the line under the condition of the same power is facilitated, the cost and the weight of the line are reduced, the potential safety hazard of large current is eliminated, and the minimization of the volume of the compressor motor under the condition of the same power is facilitated.
As shown in fig. 2, the voltage U of the positive terminal of the storage battery, the voltage U1 of the output terminal of the DC/DC converter, and the voltage U2 of the positive terminal of the solar photovoltaic power generation controller; the voltage relationship of the three is as follows: u2 > U1 > U.
When the low-voltage high-power electrical appliance of the air conditioner needs to be started, the air conditioner controller controls to send a switch-on signal to the photovoltaic relay, the photovoltaic relay is switched on, and the solar photovoltaic equipment starts to supply power. When the low-voltage high-power electrical appliance of the air conditioner is turned off, the photovoltaic relay is turned off. Meanwhile, the air conditioner controller sends an on-off signal to the air conditioner high-voltage relay to supply power to the air conditioner high-voltage electric equipment; the air conditioner high-voltage electric equipment correspondingly operates according to different power signals provided by the air conditioner controller.
In addition, as an improvement, when the key switch is powered on, the low-voltage relay is closed, and the power supply system supplies power to the low-voltage part of the air conditioner and is used for air conditioner sensors and air conditioner controllers; when the air conditioner sensors detect comfort signals in the vehicle, the air conditioner is started according to the demand after calculation through the air conditioner controller, and the functional components corresponding to the air conditioner are controlled to start running. The key switch is powered on to provide a power supply for the air conditioner, the on-off of the power supply of an air conditioning system is controlled through the key switch of the whole vehicle, the air conditioner can be ensured not to be started under the condition of no driver key operation, and the waste of the power supply consumption of the whole vehicle by the air conditioner is prevented.
The present invention has been described in relation to particular embodiments thereof, but the invention is not limited to the described embodiments. In the thought given by the present invention, the technical means in the above embodiments are changed, replaced, modified in a manner that is easily imaginable to those skilled in the art, and the functions are basically the same as the corresponding technical means in the present invention, and the purpose of the invention is basically the same, so that the technical scheme formed by fine tuning the above embodiments still falls into the protection scope of the present invention.

Claims (10)

1. The utility model provides an automobile air conditioner power supply system based on solar energy, includes high-voltage battery and storage battery, high-voltage battery is used for the power supply to connect air conditioner high pressure consumer through high-voltage bus, storage battery is used for the power supply to connect air conditioner low pressure consumer through low-voltage bus, its characterized in that still includes solar cell panel and the DC/DC converter of being connected with high-voltage battery, the output of DC/DC converter is connected low-voltage bus, the input of DC/DC converter is connected high-voltage bus, solar cell panel passes through the photovoltaic power generation controller and connects low-voltage bus.
2. The solar-based automobile air-conditioning power supply system according to claim 1, wherein a contact part of a photovoltaic relay is arranged between the photovoltaic power generation controller and the low-voltage bus, and a coil part of the photovoltaic relay is used for connecting an air-conditioning controller and/or a key switch.
3. The solar-based automobile air-conditioning power supply system according to claim 1 or 2, wherein a contact part of a high-voltage relay is arranged between the high-voltage bus and the air-conditioning high-voltage electric equipment, and a coil part of the high-voltage relay is used for connecting an air-conditioning controller.
4. The solar-based automotive air-conditioning power supply system according to claim 3, characterized in that a contact part of a low-voltage relay is arranged between the low-voltage bus and the air-conditioning low-voltage electric equipment, and a coil part of the low-voltage relay is used for connecting a key switch.
5. The solar-based automobile air-conditioning power supply system according to claim 4, wherein the low-voltage bus comprises a first low-voltage branch and a second low-voltage branch, the first low-voltage branch is used for connecting at least an air-conditioning controller and an air-conditioning sensor in low-voltage air-conditioning electric equipment, the second low-voltage branch is used for connecting at least a fan set in the low-voltage air-conditioning electric equipment, a contact part of a high-power relay is arranged on the second low-voltage branch, and a coil part of the high-power relay is used for connecting the air-conditioning controller.
6. The utility model provides a vehicle, includes air conditioner and air conditioner power supply system, the air conditioner includes air conditioner high pressure consumer and air conditioner low pressure consumer, air conditioner power supply system includes high-voltage battery and storage battery, high-voltage battery passes through the high-voltage bus power supply and connects air conditioner high pressure consumer, storage battery passes through the low pressure bus power supply and connects air conditioner low pressure consumer, a serial communication port, air conditioner power supply system still includes solar cell panel and the DC/DC converter of being connected with high-voltage battery, the output of DC/DC converter is connected the low voltage bus, the input of DC/DC converter is connected the high voltage bus, solar cell panel passes through the photovoltaic power generation controller and connects the low voltage bus.
7. The vehicle according to claim 6, characterized in that a contact part of a photovoltaic relay is arranged between the photovoltaic power generation controller and the low-voltage bus, and a coil part of the photovoltaic relay is connected with a key switch and/or an air conditioner controller in an air-conditioning low-voltage electric device.
8. The vehicle according to claim 6 or 7, characterized in that a contact part of a high-voltage relay is arranged between the high-voltage bus and the air-conditioning high-voltage electric equipment, and a coil part of the high-voltage relay is connected with an air-conditioning controller in the air-conditioning low-voltage electric equipment.
9. The vehicle according to claim 8, wherein a contact portion of a low-voltage relay is provided between the low-voltage bus and the air-conditioning low-voltage electric equipment, and a coil portion of the low-voltage relay is connected with a key switch.
10. The vehicle of claim 9, wherein the low voltage bus comprises a first low voltage branch and a second low voltage branch, the first low voltage branch is connected with at least an air conditioner sensor in the low voltage electric equipment for air conditioning and the air conditioner controller, the second low voltage branch is connected with at least a fan set in the low voltage electric equipment for air conditioning, a contact part of a high power relay is arranged on the second low voltage branch, and a coil part of the high power relay is connected with the air conditioner controller.
CN201810556500.1A 2018-06-01 2018-06-01 Solar-based automobile air conditioner power supply system and vehicle Pending CN110549811A (en)

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