A cooling and heating system for an electrically powered vehicle and a method of powering a vehicle

Abstract

The application provides a cooling and heating system of an electric vehicle and a vehicle energy supply method. The cooling and heating system comprises one or more first energy storage devices, one or more second energy storage devices, a pneumatic conveying device and a temperature control module. The pneumatic conveying device comprises a circulating pipeline and a conveying pump on the circulating pipeline. The first energy storage device is filled with a first energy storage medium, and the second energy storage device is filled with a second energy storage medium. The temperature range of the first energy storage medium and the second energy storage medium is from-250 DEG C to 3000 DEG C. The inlet of the first energy storage device is connected with the conveying pump through the circulating pipeline. The outlet of the first energy storage device is connected with the inlet of the second energy storage device through the circulating pipeline. The outlet of the second energy storage device is connected with the electric vehicle through the circulating pipeline. Through the application, the energy storage device provides heat / cold for the pure electric vehicle without consuming battery energy, and supports super-high temperature and super-low temperature cooling and heating.

Description

Technical Field

[0001] This invention relates to the field of energy storage technology, and in particular to a cooling and heating system and a method for supplying energy to electric vehicles. Background Technology

[0002] The application of pure electric vehicles effectively reduces carbon emissions and is environmentally friendly and pollution-free; however, pure electric vehicles are greatly affected by the environment, especially in summer and winter.

[0003] In hot summers and cold winters, pure electric vehicles need to turn on their cooling / heating systems when traveling. The energy for cooling / heating in pure electric vehicles comes from electricity, especially when heating, which consumes a lot of electricity (heating requires at least 20% of the electricity), resulting in a significant reduction in driving range and making travel inconvenient. Summary of the Invention

[0004] In view of the above problems, a cooling and heating system and a vehicle power supply method for electric vehicles are proposed to overcome or at least partially solve the above problems, including:

[0005] A cooling and heating system for an electric vehicle, comprising: one or more first energy storage devices, one or more second energy storage devices, a pneumatic conveying device, and a temperature control module. The pneumatic conveying device includes a circulation pipe and a conveying pump on the circulation pipe. The first energy storage device is filled with a first energy storage medium, and the second energy storage device is filled with a second energy storage medium. The first and second energy storage media can withstand a temperature range of -250°C to 3000°C. The inlet of the first energy storage device is connected to the conveying pump via the circulation pipe, the outlet of the first energy storage device is connected to the inlet of the second energy storage device via the circulation pipe, and the outlet of the second energy storage device is connected to the electric vehicle via the circulation pipe.

[0006] The pneumatic conveying equipment is used to provide the working fluid for the cooling and heating system;

[0007] The first energy storage device is used to store heat or cold through the first energy storage medium and to exchange energy with the introduced fluid working medium using the first energy storage medium.

[0008] The second energy storage device is used to receive the fluid working medium delivered by the first energy storage device, and to exchange energy with the fluid working medium using the second energy storage medium, and to deliver the fluid working medium to the electric vehicle to provide cooling or heating for the electric vehicle.

[0009] The temperature control module is used to monitor the operating status of the electric vehicle and control the first energy storage device to start or stop energy release according to the operating status.

[0010] Optionally, the first energy storage device may be detachably connected to the electric vehicle.

[0011] Optionally, when the temperature control module is used to monitor the operating status of the electric vehicle and control the first energy storage device to start or stop energy release according to the operating status, it is specifically used for:

[0012] When the electric vehicle is detected to be in operation with its onboard heating system activated, the first energy storage device is controlled to release energy.

[0013] When the operation of the electric vehicle is detected to be such that the second energy storage device is depleted, the second energy storage device is controlled to stop releasing energy.

[0014] Optionally, the temperature control module is also used to monitor the interior temperature of the electric vehicle and adjust the air intake speed of the pneumatic conveying device based on the interior temperature and the preset temperature of the vehicle heating system. The temperature control module also includes a fresh air device connected to the outlet of the second energy storage device, which is used to cool the gas output by the second energy storage device to the preset temperature of the vehicle heating system.

[0015] Optionally, a first valve is installed on the circulation pipe before the inlet of the first energy storage device, and a second valve is installed on the circulation pipe after the outlet of the first energy storage device. The temperature control module controls the opening or closing of the first valve and the second valve to control the first energy storage device to start or stop releasing energy.

[0016] Optionally, when there are multiple first energy storage devices, the top inlet of the target energy storage device among the multiple first energy storage devices is connected to the bottom outlet of the second energy storage device through a circulation pipe, and the bottom outlet of the target energy storage device is connected to the bottom outlet of the second energy storage device through a circulation pipe, wherein the target energy storage device is the energy storage device that releases its heat energy first among the multiple first energy storage devices;

[0017] The cooling and heating system is used to transport the fluid working medium output from the bottom outlet of the second energy storage device to the target energy storage device through the circulation pipeline after the target energy storage device has released all its energy. After energy exchange in the target energy storage device, the fluid is then output to the electric vehicle.

[0018] Optionally, the first energy storage device is charged in an energy storage system, which includes a fluidized bed charging module, a fixed bed energy storage module, and a circulation pipeline connecting the fluidized bed charging module and the fixed bed energy storage module. The fluidized bed charging module is a fluidized bed heating device or a fluidized bed cooling device. The fixed bed energy storage module includes a first fixed bed group consisting of multiple fixed beds connected in series or in parallel, a second fixed bed connected in series with the first fixed bed group, a first thermometer located at the top of the second fixed bed, and a second thermometer located at the bottom of the second fixed bed. The circulation pipeline is filled with a fluid working medium. The fluidized bed cavity of the fluidized bed charging module is filled with first energy storage particles, and the fixed bed cavity of the fixed bed energy storage module is filled with second energy storage particles. The first energy storage device is a fixed bed in the first fixed bed group.

[0019] Optionally, the heat or cold energy stored in the first energy storage device originates from:

[0020] Solar energy, wind energy, off-peak electricity, and refrigeration equipment.

[0021] Optionally, the plurality of first energy storage devices are connected in series or in parallel, and the plurality of second energy storage devices are connected in series or in parallel.

[0022] Optionally, the temperature control module includes a first thermometer for monitoring the top temperature of the first energy storage device, a second thermometer for monitoring the bottom temperature of the first energy storage device, a third thermometer for monitoring the top temperature of the second energy storage device, and a fourth thermometer for monitoring the bottom temperature of the second energy storage device.

[0023] A vehicle power supply method, applied to a cooling and heating system according to any one of claims 1 to 9, the method comprising:

[0024] The pneumatic conveying equipment is used to transport the fluid working medium to the first energy storage device;

[0025] Within the first energy storage device, the first energy storage medium, which stores heat or cold, exchanges energy with the fluid working medium to transfer the energy carried by the first energy storage medium to the fluid working medium.

[0026] The energy-carrying fluid is delivered to the second energy storage device;

[0027] In the second energy storage device, the second energy storage medium is used to exchange energy with the fluid working medium, so as to transfer part of the energy carried by the fluid working medium to the second energy storage medium;

[0028] The fluid working medium output from the second energy storage device is transported to the electric vehicle through the circulation pipeline to provide cooling or heating for the electric vehicle.

[0029] The embodiments of the present invention have the following advantages:

[0030] This invention provides a cooling and heating system comprising one or more first energy storage devices, one or more second energy storage devices, a pneumatic conveying device, and a temperature control module. The pneumatic conveying device includes a circulation pipe and a pump connected to the circulation pipe. The first energy storage devices are filled with a first energy storage medium, and the second energy storage devices are filled with a second energy storage medium. The first and second energy storage media can withstand temperatures ranging from -250°C to 3000°C. The inlet of the first energy storage device is connected to the pump via the circulation pipe, and the outlet of the first energy storage device is connected to the inlet of the second energy storage device via the circulation pipe. The outlet of the second energy storage device is connected to the electric vehicle via the circulation pipe. This cooling and heating system enables the energy storage devices to provide heat / cooling to pure electric vehicles without consuming battery energy. Furthermore, the energy storage devices support a temperature range of -250°C to 3000°C. Therefore, the cooling and heating system described in this invention can provide cooling and heating at both ultra-high and ultra-low temperatures. Attached Figure Description

[0031] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1a This is a schematic diagram of the cooling and heating system of an electric vehicle according to an embodiment of the present invention;

[0033] Figure 1b This is a schematic diagram of the cooling and heating system of an electric vehicle according to an embodiment of the present invention;

[0034] Figure 1c This is a schematic diagram of the cooling and heating system of an electric vehicle according to an embodiment of the present invention;

[0035] Figure 2 This is a flowchart of a vehicle power supply method provided in an embodiment of the present invention. Detailed Implementation

[0036] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0037] Reference Figure 1a This diagram illustrates a structural schematic of a cooling and heating system for an electric vehicle according to an embodiment of the present invention. The cooling and heating system includes: one or more first energy storage devices 101, one or more second energy storage devices 102, a pneumatic conveying device 104, and a temperature control module. The pneumatic conveying device 104 includes a circulation pipe and a conveying pump on the circulation pipe. The first energy storage device 101 and the second energy storage device 102 are connected through the circulation pipe. The second energy storage device 102 is connected to the air supply module of the electric vehicle 103 through the circulation pipe. The first energy storage device is filled with a first energy storage medium, and the second energy storage device is filled with a second energy storage medium. The first energy storage medium and the second energy storage medium can withstand a temperature range of -250°C to 3000°C. The inlet of the first energy storage device is connected to the conveying pump through the circulation pipe. The outlet of the first energy storage device is connected to the inlet of the second energy storage device through the circulation pipe. The outlet of the second energy storage device is connected to the electric vehicle through the circulation pipe.

[0038] When the first energy storage device stores thermal energy, the first and second energy storage media are high-temperature resistant and have high specific heat capacity, which facilitates the storage of thermal energy and allows for rapid heat exchange with the fluid working medium. In this embodiment of the invention, the first and second energy storage media can withstand temperatures up to 3000 degrees Celsius. When the first energy storage device stores cold energy, the first and second energy storage media can withstand low temperatures. In this embodiment of the invention, the first and second energy storage media can withstand low temperatures of -250°C.

[0039] The specific materials of the first energy storage medium and the second energy storage medium in the embodiments of the present invention can be selected according to the actual application scenario, and no restrictions are imposed on them in the embodiments of the present invention.

[0040] In this embodiment of the invention, the second energy storage device serves as a buffer between the first energy storage device and the electric vehicle. The temperature range within the first energy storage device can be from -250°C to 3000°C, allowing it to store a large amount of heat or cold energy. The second energy storage device acts as a buffer, adjusting the temperature of the heat released by the first energy storage device so that a suitable temperature can ultimately be delivered to the electric vehicle, enabling cooling and heating at the vehicle end without the need to activate the air conditioning.

[0041] It should be noted that in this embodiment of the invention, in order to ensure that the energy of the first energy storage device can be applied from -250°C to 3000°C, the materials of each component in the cooling and heating system also need to be selected to be applicable to this temperature range.

[0042] In one embodiment of the present invention, the first energy storage device is detachably connected to the electric vehicle, which facilitates disassembly and replacement when the energy is depleted.

[0043] In another embodiment of the present invention, the heat or cold stored in the first energy storage device may be derived from: solar energy, wind energy, off-peak electricity, refrigeration machines, industrial waste heat, geothermal energy, biomass energy, electrical energy conversion, environmental thermal energy, chemical reaction heat, nuclear energy, wind energy, and tidal energy.

[0044] Solar thermal energy can be collected by solar collectors and stored in thermal energy storage systems, such as hot water storage tanks or phase change materials. Industrial waste heat, generated during industrial production processes such as steel, chemical, and power industries, can be recovered and stored through heat exchangers. Geothermal energy can be extracted through geothermal wells and stored in geothermal energy storage systems for heating or power generation. Heat generated during biomass combustion or biomass pyrolysis can be stored for heating or power generation. Electrical energy can be converted into heat or cold energy for storage through methods such as resistance heating, electrochemical reactions, or water electrolysis. Environmental thermal energy, such as heat from the air, water, or soil, can be extracted and stored using heat pump technology. Cold energy can be generated by refrigeration units or heat pump systems and stored in cryogenic storage devices, such as ice storage systems. Chemical reaction heat is the heat released during certain chemical reactions, such as the heat generated by the reaction of sodium hydroxide with water. Heat generated in nuclear reactors can be used to produce steam, which drives turbines to generate electricity, and excess heat can be stored. Wind and tidal energy: Excess electricity generated during the power generation process of these renewable energy sources can be converted into thermal energy storage through electrothermal conversion equipment.

[0045] In one embodiment of the present invention, the plurality of first energy storage devices are connected in series or in parallel, and the plurality of second energy storage devices are connected in series or in parallel.

[0046] In this embodiment of the invention, the pneumatic conveying device is used to provide a working fluid to the cooling and heating system. The working fluid is air. The pneumatic conveying device in this embodiment can control the airflow speed, thereby controlling the temperature and airflow speed of the working fluid delivered to the electric vehicle.

[0047] In this embodiment of the invention, the first energy storage device is used to store heat or cold through the first energy storage medium and to exchange energy with the introduced fluid working medium using the first energy storage medium.

[0048] When the first energy storage device stores heat, when a fluid working medium is introduced into the first energy storage device, the temperature of the fluid working medium is much lower than that of the first energy storage medium inside the first energy storage device. Thus, the first energy storage medium can transfer the temperature to the fluid working medium, and the fluid working medium carries the heat out of the first energy storage device. This stage realizes the transfer of heat from the first energy storage device to the fluid working medium.

[0049] When the first energy storage device stores cold energy, and a fluid working medium is introduced into the first energy storage device, the temperature of the first energy storage medium inside the first energy storage device is much lower than that of the fluid working medium. When the fluid working medium flows into the first energy storage device, the first energy storage medium comes into contact with the fluid working medium, causing the cold energy to be transferred from the first energy storage medium to the fluid working medium.

[0050] In this embodiment of the invention, the second energy storage device can be used to receive the heated fluid working medium delivered by the first energy storage device, and to exchange energy with the fluid working medium using the second energy storage medium, so that the high-temperature fluid working medium transfers heat to the low-temperature first energy storage medium for storage. The temperature of the fluid working medium decreases, and the fluid working medium is then delivered to the electric vehicle to provide cooling or heating for the electric vehicle.

[0051] In this embodiment of the invention, a temperature control module may also be provided in the cooling and heating system. The temperature control module can be used to monitor the operating status of the electric vehicle and control the first energy storage device to start or stop energy release according to the operating status.

[0052] The operating status of electric vehicles may include the status of the cooling and heating systems in the electric vehicles, the activation status of the on-board heating system, etc.

[0053] Specifically, when the electric vehicle is detected to be in operation with its onboard heating system activated, the first energy storage device can be controlled to start releasing energy; when the electric vehicle is detected to be in operation with its second energy storage device depleted of energy, the second energy storage device can be controlled to stop releasing energy.

[0054] In practical applications, the temperature control system can respond to the user's activation of the on-board heating system of an electric vehicle, determine whether the user needs heating or heat supply, and thus control the first energy storage device to start releasing energy.

[0055] In one embodiment of the present invention, the control conditions of the temperature control module can be preset. The control conditions can be related to the electrical energy of the electric vehicle required to turn on the in-vehicle air conditioning. For example, when the electrical energy of the electric vehicle is lower than a preset value, the temperature control system can monitor the operating status of the electric vehicle and control the first energy storage device to start or stop releasing energy according to the operating status.

[0056] The control conditions can also be associated with the start-up time and the outdoor temperature. For example, when the outdoor temperature is as high as a first preset temperature or as low as a second preset temperature, the temperature control system monitors the operating status of the electric vehicle and controls the first energy storage device to start or stop releasing energy according to the operating status.

[0057] In this embodiment of the invention, by activating the first energy storage device, electric vehicles can provide heating or cooling air without consuming electrical energy.

[0058] In one embodiment of the present invention, a first valve is provided on the circulation pipe before the inlet of the first energy storage device, and a second valve is provided on the circulation pipe after the outlet of the first energy storage device. The temperature control module controls the opening or closing of the first valve and the second valve to control the first energy storage device to start or stop releasing energy.

[0059] Specifically, when the first valve is open and the second valve is open, the first energy storage device starts releasing energy; when the first valve is closed and the second valve is closed, the first energy storage device stops releasing energy.

[0060] In practical applications, when there are multiple first energy storage devices, each first energy storage device is equipped with a corresponding first valve and second valve. By opening and closing the first valve and the second valve, the energy can be released by each first energy storage device in series or in parallel.

[0061] Similarly, when there are multiple second energy storage devices, a third valve can be installed on the circulation pipe after the outlet of each second energy storage device, and a fourth valve can be installed on the circulation pipe before the inlet. Then, the temperature control device can control the energy buffering of the second energy storage device by controlling the opening and closing of the third and fourth valves, thereby realizing the second energy storage device as a temperature buffer device to regulate the temperature of the ultra-high temperature fluid working medium output by the first energy storage device.

[0062] In practical applications, the second energy storage device can be connected in series or in parallel to buffer energy by controlling the opening and closing of the third and fourth valves.

[0063] In one embodiment of the present invention, the temperature control module includes a first thermometer (e.g., for monitoring the temperature at the top of the first energy storage device) for monitoring the temperature at the top of the first energy storage device. Figure 1a T1), and a second temperature instrument (such as T1) used to monitor the temperature at the bottom of the first energy storage device. Figure 1a T2 in the text), and a third temperature instrument (such as T2) used to monitor the temperature at the top of the second energy storage device. Figure 1a T3 in the middle) and a fourth thermometer (such as T3) for monitoring the temperature at the bottom of the second energy storage device. Figure 1a (T4 in the middle).

[0064] The first thermometer monitors the highest temperature of the first energy storage device, the second thermometer monitors the lowest temperature of the first energy storage device, the third thermometer monitors the highest temperature of the second energy storage device, and the fourth thermometer monitors the lowest temperature of the second energy storage device.

[0065] In one embodiment of the present invention, the temperature control module is further used to monitor the interior temperature of the electric vehicle and adjust the air intake speed of the pneumatic conveying device based on the interior temperature and the preset temperature of the vehicle heating system.

[0066] Specifically, when there is a demand for heating air, and the interior temperature is significantly lower than the preset temperature, the air intake speed can be increased to achieve rapid heating. For example, a mapping relationship between the temperature difference between the interior temperature and the preset temperature and the air intake speed can be preset. After determining the temperature difference, the corresponding air intake speed can be determined based on the mapping relationship.

[0067] The temperature control module in this embodiment of the invention also includes a fresh air device connected to the outlet of the second energy storage device. When the first energy storage device stores thermal energy, the fresh air device is turned on. The fresh air device is used to cool the gas output by the second energy storage device to the preset temperature of the vehicle heating system so as to facilitate the application of electric vehicles.

[0068] By adding a fresh air system, the system can rationally allocate the flow rate of high-temperature gas and fresh air from the outlet of the second energy storage device according to the required temperature. For example, assuming the outlet temperature of the second energy storage device is 600℃ and the gas flow rate is 0.01m / s, and 0.3m / s of fresh air is added, the final gas temperature entering the car will be 40℃.

[0069] The purpose of adding a fresh air device in this embodiment of the invention is to reduce the gas velocity of the high-temperature storage tank, so that its output heat is relatively less; because the temperature required for heating is <100℃; while the temperature of the first storage tank is as high as 3000℃, the energy levels are quite different; by using a fresh air device, the outlet gas temperature of the second energy storage device can be reduced, increasing safety while also meeting the normal gas volume requirements of electric vehicles.

[0070] Reference Figure 1b In one embodiment of the present invention, a cooling and heating system is provided, wherein the fresh air device 21 can be installed on the circulation pipe between the second energy storage device 102 and the electric vehicle 103.

[0071] In one embodiment of the present invention, when multiple first energy storage devices exist, the top inlet of a target energy storage device among the multiple first energy storage devices can be connected to the bottom outlet of a second energy storage device through a circulation pipe, and the bottom outlet of the target energy storage device can be connected to the bottom outlet of the second energy storage device through a circulation pipe, wherein the target energy storage device is the energy storage device that releases its energy first among the multiple first energy storage devices; the cooling and heating system is used to supply energy to the target energy storage device.

[0072] After the energy of the device is released, the fluid working medium output from the bottom outlet of the second energy storage device is transported to the target energy storage device through the circulation pipeline, and after energy exchange in the target energy storage device, it is output to the electric vehicle.

[0073] In this embodiment of the invention, the energy release process can be divided into two stages. In the first stage, all the first energy storage devices release energy together, while the second energy storage device buffers part of the energy and then the fluid working medium carrying part of the energy is transported to the electric vehicle to realize the vehicle's cooling and heating functions.

[0074] In the second stage, after a portion of the energy from the first energy storage device (i.e. the target energy storage device) has been released, the target energy storage device becomes independent from the first energy storage device and is connected in series with the second energy storage device through a circulation pipeline, together serving as a buffer device to cache energy.

[0075] The first and third valves of the target energy storage device can be configured as three-way valves. The first valve connects to the gas transport equipment at its first end, to the top of the target energy storage device at its second end, and to the bottom of the second energy storage device at its third end. The second valve connects to the bottom of the first energy storage device at its first end, to the bottom of another first energy storage device at its second end, and to the bottom of the second energy storage device at its third end. A fifth valve, which can be a three-way valve, is installed between the second energy storage device and the electric vehicle. The first end of this three-way valve connects to the second energy storage device, the second end connects to the electric vehicle at its second end, and the third end connects to the third end of the first valve.

[0076] Reference Figure 1c This illustration shows a cooling and heating system according to an embodiment of the present invention. The first energy storage device includes a target energy storage device 11. The valves corresponding to the target energy storage device 11 are a first valve 31 and a second valve 32. A fifth valve 33 is provided on the circulation pipe at the outlet of the second energy storage device 102.

[0077] In the first stage, the first end of the first valve 31 is connected to the second end, and the third end is closed, so that the gas transport device can input gas into the target energy storage device; the first end of the second valve 32 is connected to the second end, and the third end is closed; the first end of the fifth valve is connected to the second end, and the third end is closed, so that the fluid working medium output from the first energy storage device can be input into the second energy storage device from the top of the second energy storage device. After storing part of the energy, the second energy storage device outputs it and transports it to the electric vehicle 103 along the circulation pipeline.

[0078] In the second stage, the second end of the first valve 31 is connected to the third end, and the first end is closed. The first end of the second valve 32 is connected to the third end, and the second end is closed. The first end of the fifth valve 33 is closed, and the second end is connected to the third end. Thus, the target energy storage device 11 is independent of other first energy storage devices, and the target energy storage device 11 is connected in series with the second energy storage device 102. The fluid working medium output from the second energy storage device 102 flows into the target energy storage device 11 through the second valve 32, and then stores part of the energy in the target energy storage device. It is then transported to the fifth valve 33 through the first valve 31 and then to the electric vehicle.

[0079] In one embodiment of the present invention, the first energy storage device is charged in an energy storage system. The energy storage system includes a fluidized bed charging module, a fixed bed energy storage module, and a circulation pipeline connecting the fluidized bed charging module and the fixed bed energy storage module. The fluidized bed charging module is a fluidized bed heating device or a fluidized bed cooling device. The fixed bed energy storage module includes a first fixed bed group consisting of multiple detachable fixed beds connected in series or in parallel, a second fixed bed connected in series with the first fixed bed group, a first thermometer located at the top of the second fixed bed, and a second thermometer located at the bottom of the second fixed bed. A fluid working medium flows through the circulation pipeline. The fluidized bed cavity of the fluidized bed charging module is filled with a third energy storage medium, and the fixed bed cavity of the fixed bed energy storage module is filled with a first energy storage medium. The first energy storage device is a fixed bed in the first fixed bed group.

[0080] In practical applications, after the fluidized bed energy charging module receives the incoming fluid working medium, the fluid working medium exchanges energy with the third energy storage medium. The fluid working medium carries the energy to the fixed bed energy storage module, where it sequentially stores energy in the fixed beds of the first fixed bed group, and then outputs it from the second fixed bed. Through the above settings, the fixed beds in the first fixed bed group are fully charged with energy, and the charged fixed beds can be disassembled for use. Specifically, the charged fixed beds can be used in the cooling and heating system of the electric vehicle in the embodiment of the present invention as the first energy storage device for energy release.

[0081] In one embodiment of the present invention, when the first energy storage device stores thermal energy, the second energy storage device can be connected to a thermal energy conversion device to convert the thermal energy into other forms of energy required by the vehicle, such as electrical energy, mechanical energy, etc.

[0082] Specifically, when the heat energy conversion device is a thermoelectric conversion device, it may include a cold water pump, a water pipeline, and a steam power generation device. The water pipeline is located within a second energy storage device. When the first energy storage device is activated to release energy, the cold water pump starts, and water flows through the pipeline. The fluid working medium heated by the first energy storage device is introduced into the second energy storage device, contacting the water pipeline and heating it while cooling the fluid working medium. Simultaneously, the water in the pipeline is heated to generate steam, which then enters the steam power generation device, converting heat energy into electrical energy to power electric vehicles.

[0083] When the heat energy conversion device is a heat energy to mechanical energy conversion device, the heat energy conversion device can be an engine. The fluid working medium in the second energy storage device can intermittently enter the engine to expand and do work, thereby outputting mechanical energy, which is then connected to the wheel axle through the transmission to improve the vehicle's driving range.

[0084] In this embodiment of the invention, the cooling and heating system can enable the energy storage device to provide heat / cooling to pure electric vehicles without consuming battery energy, and the energy storage device supports a temperature range of -250°C to 3000°C. Therefore, the cooling and heating system in this embodiment of the invention can achieve cooling and heating at ultra-high and ultra-low temperatures.

[0085] Reference Figure 2 This diagram illustrates a flowchart of a vehicle power supply method according to an embodiment of the present invention. The method is applied to a cooling and heating system for an electric vehicle. The cooling and heating system includes: one or more first energy storage devices, one or more second energy storage devices, a pneumatic conveying device, and a temperature control module. The pneumatic conveying device includes a circulation pipe and a conveying pump on the circulation pipe. The first energy storage device is filled with a first energy storage medium, and the second energy storage device is filled with a second energy storage medium. The first and second energy storage media can withstand a temperature range of -250°C to 3000°C. The inlet of the first energy storage device is connected to the conveying pump via the circulation pipe, the outlet of the first energy storage device is connected to the inlet of the second energy storage device via the circulation pipe, and the outlet of the second energy storage device is connected to the electric vehicle via the circulation pipe.

[0086] The pneumatic conveying equipment is used to provide the working fluid for the cooling and heating system;

[0087] The first energy storage device is used to store heat or cold through the first energy storage medium and to exchange energy with the introduced fluid working medium using the first energy storage medium.

[0088] The second energy storage device is used to receive the fluid working medium delivered by the first energy storage device, and to exchange energy with the fluid working medium using the second energy storage medium, and to deliver the fluid working medium to the electric vehicle to provide cooling or heating for the electric vehicle.

[0089] The temperature control module is used to monitor the operating status of the electric vehicle and control the first energy storage device to start or stop energy release according to the operating status.

[0090] The vehicle energy supply method based on the above-mentioned cooling and heating system may specifically include the following steps:

[0091] Step S201: The pneumatic conveying equipment is used to transport the fluid working medium to the first energy storage device;

[0092] Step S202: In the first energy storage device, the first energy storage medium that stores heat or cold is used to exchange energy with the fluid working medium to transfer the energy carried by the first energy storage medium to the fluid working medium.

[0093] Step S203: The energy-carrying fluid working medium is delivered to the second energy storage device;

[0094] Step S204: In the second energy storage device, the second energy storage medium is used to exchange energy with the fluid working medium, so as to transfer part of the energy carried by the fluid working medium to the second energy storage medium;

[0095] Step S205: The fluid working medium output by the second energy storage device is transported to the electric vehicle through the circulation pipeline to provide cooling or heating for the electric vehicle.

[0096] In one embodiment of the present invention, when the temperature control module detects that the electric vehicle is in the operating state of starting the on-board heating system, it controls the first energy storage device to start releasing energy; when the temperature control module detects that the electric vehicle is in the operating state of the second energy storage device having exhausted its energy, it controls the second energy storage device to stop releasing energy.

[0097] Specifically, a first valve can be installed on the circulation pipe before the inlet of the first energy storage device, and a second valve can be installed on the circulation pipe after the outlet of the first energy storage device. The temperature control module controls the opening or closing of the first valve and the second valve to control the first energy storage device to stop releasing energy.

[0098] Furthermore, when the temperature control module detects that the electric vehicle is in the operating state of starting the on-board heating system, it controls the first valve and the second valve to open, so that the first energy storage device can start releasing energy.

[0099] When the temperature control module detects that the electric vehicle is in a state where the first energy storage device is depleted, it controls the first valve and the second valve to close, thereby controlling the first energy storage device to stop releasing energy.

[0100] In another embodiment of the present invention, the temperature control module monitors the interior temperature of the electric vehicle and adjusts the air intake speed of the pneumatic conveying device based on the interior temperature and the preset temperature of the vehicle heating system. The temperature control module also includes a fresh air device connected to the outlet of the second energy storage device. In this embodiment of the invention, the fresh air device can be used to cool the gas output from the second energy storage device to the preset temperature of the vehicle heating system.

[0101] In one embodiment of the present invention, the heat or cold energy stored in the first energy storage device originates from:

[0102] Solar energy, wind energy, off-peak electricity, and refrigeration equipment.

[0103] In one embodiment of the present invention, the plurality of first energy storage devices are connected in series or in parallel, and the plurality of second energy storage devices are connected in series or in parallel.

[0104] In one embodiment of the present invention, the first energy storage device is detachably connected to the electric vehicle. This allows the user to freely remove the first energy storage device, facilitating its charging and replacement.

[0105] In one embodiment of the present invention, the temperature control module includes a first thermometer for monitoring the top temperature of the first energy storage device, a second thermometer for monitoring the bottom temperature of the first energy storage device, a third thermometer for monitoring the top temperature of the second energy storage device, and a fourth thermometer for monitoring the bottom temperature of the second energy storage device.

[0106] In one embodiment of the present invention, the first energy storage device is charged in an energy storage system. The energy storage system includes a fluidized bed charging module, a fixed bed energy storage module, and a circulation pipeline connecting the fluidized bed charging module and the fixed bed energy storage module. The fluidized bed charging module is a fluidized bed heating device or a fluidized bed cooling device. The fixed bed energy storage module includes a first fixed bed group composed of multiple fixed beds connected in series or in parallel, a second fixed bed connected in series with the first fixed bed group, a first thermometer located at the top of the second fixed bed, and a second thermometer located at the bottom of the second fixed bed. A fluid working medium is circulated in the circulation pipeline. The fluidized bed cavity of the fluidized bed charging module is filled with first energy storage particles, and the fixed bed cavity of the fixed bed energy storage module is filled with second energy storage particles. The first energy storage device is a fixed bed in the first fixed bed group.

[0107] In one embodiment of the present invention, when there are multiple first energy storage devices, the top inlet of the target energy storage device among the multiple first energy storage devices is connected to the bottom outlet of the second energy storage device through a circulation pipe, and the bottom outlet of the target energy storage device is connected to the bottom outlet of the second energy storage device through a circulation pipe, wherein the target energy storage device is the energy storage device that releases its heat energy first among the multiple first energy storage devices.

[0108] During the energy release process of the first energy storage device, if it is detected that the target energy storage device has released all its energy, the valve on the circulation pipeline is controlled to open and close, so that the target energy storage device is disconnected from other first energy storage devices, and the second energy storage device is controlled to be connected in series with the target energy storage device. Then, the fluid working medium output from the bottom outlet of the second energy storage device is transported to the target energy storage device through the circulation pipeline. After energy exchange in the target energy storage device, it is output to the electric vehicle.

[0109] In this embodiment of the invention, the fluid working medium is transported to the first energy storage device using the pneumatic conveying equipment;

[0110] Within the first energy storage device, the first energy storage medium, which stores heat or cold, exchanges energy with the fluid working medium to transfer the energy carried by the first energy storage medium to the fluid working medium. The energy-carrying fluid working medium is then transported to the second energy storage device. In the second energy storage device, the second energy storage medium exchanges energy with the fluid working medium to transfer a portion of the energy carried by the fluid working medium to the second energy storage medium. The fluid working medium output from the second energy storage device is then transported to the electric vehicle through the circulation pipeline to provide cooling or heating for the electric vehicle. This enables the use of energy from ultra-high temperature or ultra-low temperature energy storage devices to provide cooling or heating for the vehicle, thereby improving the vehicle's range.

[0111] It should be noted that, for the sake of simplicity, the method embodiments are described as a series of actions. However, those skilled in the art should understand that the embodiments of the present invention are not limited to the described order of actions, because according to the embodiments of the present invention, some steps can be performed in other orders or simultaneously. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions involved are not necessarily essential to the embodiments of the present invention.

[0112] An embodiment of the present invention also provides an electronic device, which may include a processor, a memory, and a computer program stored in the memory and capable of running on the processor. When the computer program is executed by the processor, it implements the above-described vehicle power supply method.

[0113] An embodiment of the present invention also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the above-described vehicle power supply method.

[0114] As the method embodiments are basically similar to the system embodiments, the description is relatively simple, and relevant parts can be found in the description of the method embodiments.

[0115] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, terminal devices (systems), or computer program products. Therefore, embodiments of the present invention can take the form of entirely hardware embodiments, entirely software embodiments, or embodiments combining software and hardware aspects. Furthermore, embodiments of the present invention can take the form of computer program products implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0116] Embodiments of the present invention are described with reference to flowchart illustrations and / or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing terminal device to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal device, create means for implementing the functions specified in one or more blocks of the flowchart illustrations and / or one or more blocks of the block diagrams.

[0117] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing terminal device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means that implement the functions specified in one or more flowcharts and / or one or more block diagrams.

[0118] These computer program instructions may also be loaded onto a computer or other programmable data processing terminal equipment to cause a series of operational steps to be performed on the computer or other programmable terminal equipment to produce a computer-implemented process, such that the instructions, which execute on the computer or other programmable terminal equipment, provide steps for implementing the functions specified in one or more flowcharts and / or one or more block diagrams.

[0119] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present invention.

[0120] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0121] The above provides a detailed description of a cooling and heating system and a vehicle power supply method for electric vehicles. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A cooling and heating system for an electric vehicle, characterized in that, The cooling and heating system includes: one or more first energy storage devices, one or more second energy storage devices, a pneumatic conveying device, and a temperature control module. The pneumatic conveying device includes a circulation pipe and a conveying pump on the circulation pipe. The first energy storage device is filled with a first energy storage medium, and the second energy storage device is filled with a second energy storage medium. The first and second energy storage media can withstand a temperature range of -250℃ to 3000℃. The inlet of the first energy storage device is connected to the conveying pump through the circulation pipe, the outlet of the first energy storage device is connected to the inlet of the second energy storage device through the circulation pipe, and the outlet of the second energy storage device is connected to the electric vehicle through the circulation pipe. The pneumatic conveying equipment is used to provide the working fluid for the cooling and heating system; The first energy storage device is used to store heat or cold through the first energy storage medium and to exchange energy with the introduced fluid working medium using the first energy storage medium. The second energy storage device is used to receive the fluid working medium delivered by the first energy storage device, and to exchange energy with the fluid working medium using the second energy storage medium, and to deliver the fluid working medium to the electric vehicle to provide cooling or heating for the electric vehicle. The temperature control module is used to monitor the operating status of the electric vehicle and control the first energy storage device to start or stop energy release according to the operating status. The first energy storage device is charged in an energy storage system, which includes a fluidized bed charging module, a fixed bed energy storage module, and a circulation pipeline connecting the fluidized bed charging module and the fixed bed energy storage module. The fluidized bed charging module is a fluidized bed heating device or a fluidized bed cooling device. The fixed bed energy storage module includes a first fixed bed group consisting of multiple fixed beds connected in series or in parallel, a second fixed bed connected in series with the first fixed bed group, a first thermometer located at the top of the second fixed bed, and a second thermometer located at the bottom of the second fixed bed. The circulation pipeline is filled with a fluid working medium. The fluidized bed cavity of the fluidized bed charging module is filled with first energy storage particles, and the fixed bed cavity of the fixed bed energy storage module is filled with second energy storage particles. The first energy storage device is a fixed bed in the first fixed bed group.

2. The cooling and heating system according to claim 1, characterized in that, The first energy storage device is detachably connected to the electric vehicle.

3. The cooling and heating system according to claim 1, characterized in that, When the temperature control module monitors the operating status of the electric vehicle and controls the first energy storage device to start or stop energy release based on the operating status, it is specifically used for: When the electric vehicle is detected to be in operation with its onboard heating system activated, the first energy storage device is controlled to release energy. When the operation of the electric vehicle is detected to be such that the second energy storage device is depleted, the second energy storage device is controlled to stop releasing energy.

4. The cooling and heating system according to claim 3, characterized in that, The temperature control module is also used to monitor the interior temperature of the electric vehicle and adjust the air intake speed of the pneumatic conveying device based on the interior temperature and the preset temperature of the vehicle heating system. The temperature control module also includes a fresh air device connected to the outlet of the second energy storage device. The fresh air device is used to cool the gas output by the second energy storage device to the preset temperature of the vehicle heating system.

5. The cooling and heating system according to claim 3, characterized in that, A first valve is installed on the circulation pipe before the inlet of the first energy storage device, and a second valve is installed on the circulation pipe after the outlet of the first energy storage device. The temperature control module controls the opening or closing of the first valve and the second valve to control the first energy storage device to start or stop releasing energy.

6. The cooling and heating system according to any one of claims 1 to 5, characterized in that, When there are multiple first energy storage devices, the top inlet of the target energy storage device among the multiple first energy storage devices is connected to the bottom outlet of the second energy storage device through a circulation pipe, and the bottom outlet of the target energy storage device is connected to the bottom outlet of the second energy storage device through a circulation pipe. The target energy storage device is the energy storage device that releases its energy first among the multiple first energy storage devices. The cooling and heating system is used to transport the fluid working medium output from the bottom outlet of the second energy storage device to the target energy storage device through the circulation pipeline after the target energy storage device has released all its energy. After energy exchange in the target energy storage device, the fluid is then output to the electric vehicle.

7. The cooling and heating system according to any one of claims 1 to 5, characterized in that, The heat or cold energy stored in the first energy storage device comes from: Solar energy, wind energy, off-peak electricity, and refrigeration equipment.

8. The cooling and heating system according to any one of claims 1 to 5, characterized in that, The plurality of first energy storage devices are connected in series or in parallel, and the plurality of second energy storage devices are connected in series or in parallel.

9. The cooling and heating system according to any one of claims 1 to 5, characterized in that, The temperature control module includes a first thermometer for monitoring the top temperature of the first energy storage device, a second thermometer for monitoring the bottom temperature of the first energy storage device, a third thermometer for monitoring the top temperature of the second energy storage device, and a fourth thermometer for monitoring the bottom temperature of the second energy storage device.

10. A method for powering an electric vehicle, characterized in that, The method, applied to the cooling and heating system according to any one of claims 1 to 9, comprises: The pneumatic conveying equipment is used to transport the fluid working medium to the first energy storage device; Within the first energy storage device, the first energy storage medium, which stores heat or cold, exchanges energy with the fluid working medium to transfer the energy carried by the first energy storage medium to the fluid working medium. The energy-carrying fluid is delivered to the second energy storage device; In the second energy storage device, the second energy storage medium is used to exchange energy with the fluid working medium, so as to transfer part of the energy carried by the fluid working medium to the second energy storage medium; The fluid working medium output from the second energy storage device is transported to the electric vehicle through the circulation pipeline to provide cooling or heating for the electric vehicle.

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