Heat storage driven electric vehicle and heat storage driving method

Abstract

The embodiment of the invention provides a heat storage driven electric vehicle and a heat storage driving method.The electric vehicle comprises first energy storage equipment, second energy storage equipment, third energy storage equipment, a thermoelectric conversion module, pneumatic conveying equipment and a temperature control module, and the pneumatic conveying equipment comprises a circulating pipeline and a conveying pump on the circulating pipeline; the first energy storage equipment is filled with a first energy storage medium, the temperature borne by the first energy storage medium is not higher than 3000 DEG C, the second energy storage equipment is filled with a second energy storage medium, the third energy storage equipment is filled with a third energy storage medium, and an outlet of the energy storage equipment is connected with an inlet of the thermoelectric conversion module through a circulating pipeline. An outlet of the thermoelectric conversion module is connected with the top of the second energy storage device and the top of the third energy storage device, a thermoelectric conversion inlet is connected with the top of the second energy storage device and the top of the third energy storage device, and the bottom of the second energy storage device and the bottom of the third energy storage device are connected with a bottom inlet of the first energy storage device through circulating pipelines.

Description

Technical Field

[0001] The present invention relates to the field of energy storage technology, and in particular to a heat storage driven electric vehicle and a heat storage driving method. Background Art

[0002] Energy storage technology plays a vital role as a bridge connecting traditional energy and renewable energy.

[0003] Although renewable energy such as wind and solar energy has broad application prospects, its intermittent and volatile nature limits its widespread application. Currently, battery energy storage has become a mainstream solution due to its high energy density and long cycle life, which can effectively achieve energy allocation across time and space and "peak shaving and valley filling". However, high costs, initial investment, significant impact of ambient temperature on performance, as well as immature recycling technology and high recycling costs are the main challenges facing current technologies. Summary of the invention

[0004] In view of the above problems, a thermal storage-driven electric vehicle and a thermal storage-driven method are proposed to overcome the above problems or at least partially solve the above problems, including:

[0005] A heat storage driven electric vehicle, the electric vehicle comprising: a first energy storage device, a second energy storage device, a third energy storage device, a thermoelectric conversion module, a pneumatic conveying device and a temperature control module, the pneumatic conveying device comprising a circulation pipeline and a delivery pump on the circulation pipeline, the delivery pump is connected to the inlet of the energy storage device through the circulation pipeline, and delivers a fluid working medium to the energy storage device, the first energy storage device is filled with a first energy storage medium, and the temperature of the first energy storage medium is not higher than 3000°C, the second energy storage device is filled with a second energy storage medium, and the third energy storage device is filled with a third energy storage medium, the outlet of the energy storage device is connected to the inlet of the thermoelectric conversion module through the circulation pipeline, the outlet of the thermoelectric conversion module is connected to the top of the second energy storage device and the top of the third energy storage device, the thermoelectric conversion inlet is connected to the top of the second energy storage device and the top of the third energy storage device, the bottom of the second energy storage device and the bottom of the third energy storage device are connected to the bottom inlet of the first energy storage device through the circulation pipeline; wherein:

[0006] The pneumatic transport device is used to provide the first energy storage device with a fluid working medium through the delivery pump;

[0007] The first energy storage device is used to heat the input fluid working medium using a first heat storage medium;

[0008] The thermoelectric conversion module is used to convert the thermal energy carried by the fluid working medium into electrical energy;

[0009] The second energy storage device and the third energy storage device are used to receive the fluid working medium output by the thermoelectric conversion module, and use the filled second energy storage medium or the third energy storage medium to exchange heat energy with the fluid working medium;

[0010] The temperature control module is used to control the first energy storage device to turn on or off to release heat energy.

[0011] Optionally, the temperature control module includes a first thermometer connected to the top of the first energy storage device, a second temperature controller connected to the bottom of the first energy storage device, a third thermometer connected to the top of the second energy storage device, a fourth thermometer connected to the bottom of the second energy storage device, a fifth thermometer connected to the top of the third energy storage device, and a sixth thermometer connected to the bottom of the third energy storage device.

[0012] Optionally, a first valve is provided on the circulation pipe before the inlet of the first energy storage device, a second valve is provided on the circulation pipe after the outlet of the energy storage device, a third valve is provided on the circulation pipe connected to the top of the second energy storage device, a fourth valve is provided on the circulation pipe connected to the bottom of the second energy storage device, a fifth valve is provided on the circulation pipe connected to the top of the third energy storage device, and a sixth valve is provided on the circulation pipe connected to the bottom of the third energy storage device.

[0013] Optionally, the temperature control system is used to control the first valve, the second valve, the third valve and the fourth valve to be opened, and the fifth valve and the sixth valve to be closed during the heat release period of the first energy storage device, so that the first energy storage device releases heat energy and the second energy storage device recovers heat energy.

[0014] Optionally, the temperature control system is used to control the first valve and the second valve to close, and control the fifth valve and the sixth valve to open when the temperature of the first thermometer is lower than a first set value, so that the second energy storage device releases heat energy and the third energy storage device recovers heat energy.

[0015] Optionally, the temperature control system is further used to control the second energy storage device and the third energy storage device to release heat energy when the temperature of the third thermometer matches the temperature of the fifth thermometer.

[0016] Optionally, the first energy storage device is detachably connected to the electric vehicle.

[0017] A heat storage driving method is applied to the electric vehicle as described above, the method comprising:

[0018] After the first energy storage device starts storing energy, the delivery pump is used to deliver fluid to the first energy storage device;

[0019] Using a first heat storage medium to heat the input fluid in the first energy storage device;

[0020] The thermal energy carried by the fluid working medium is converted into electrical energy by the thermoelectric conversion module, so as to drive the electric vehicle with the electrical energy;

[0021] The fluid working medium after energy conversion by the thermoelectric conversion module is transported to the second energy storage device or the third energy storage device, and the filled second energy storage medium or the third energy storage medium is used to exchange heat energy with the fluid working medium.

[0022] An electronic device comprises a processor, a memory and a computer program stored in the memory and capable of running on the processor, wherein the computer program implements the above-mentioned heat storage driving method when executed by the processor.

[0023] A computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the heat storage driving method described above is implemented.

[0024] The embodiments of the present invention have the following advantages:

[0025] In an embodiment of the present invention, when the thermoelectric conversion module performs heat energy and electrical energy conversion for a long time, the internal temperature will be high, so that the temperature of the hot fluid leaving the thermoelectric conversion module is high. Therefore, the second energy storage device and the third energy storage device can be used to recover the fluid after the heat energy is converted into electrical energy, so as to make full use of the heat energy and avoid waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0027] Figure 1 is a schematic structural diagram of a heat storage driven electric vehicle provided by an embodiment of the present invention;

[0028] Figure 2 It is a flow chart of the steps of a heat storage driving method provided by one embodiment of the present invention. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Reference Figure 1 , shows a schematic structural diagram of a heat storage driven electric vehicle provided by an embodiment of the present invention, the electric vehicle comprises: a first energy storage device 101, a second energy storage device 103, a third energy storage device 104, a thermoelectric conversion module 102, a pneumatic conveying device and a temperature control module, the pneumatic conveying device comprises a circulation pipeline and a delivery pump 105 on the circulation pipeline, the delivery pump 105 is connected to the inlet of the energy storage device through the circulation pipeline, and delivers a fluid working medium to the energy storage device, the first energy storage device is filled with a first energy storage medium, and the temperature of the first energy storage medium is not higher than 3000°C, the second energy storage device is filled with a second energy storage medium, and the third energy storage device is filled with a third energy storage medium, the outlet of the energy storage device is connected to the inlet of the thermoelectric conversion module through the circulation pipeline, the outlet of the thermoelectric conversion module is connected to the top of the second energy storage device and the top of the third energy storage device, the thermoelectric conversion inlet is connected to the top of the second energy storage device and the top of the third energy storage device, and the bottom of the second energy storage device and the bottom of the third energy storage device are connected to the bottom inlet of the first energy storage device through the circulation pipeline.

[0031] In practical applications, the first energy storage device can store thermal energy up to 3000°C, and has a high heat storage density. The first energy storage device can then convert the stored thermal energy into electrical energy to continuously sustain the electric vehicle, thereby improving the endurance of the electric vehicle.

[0032] In an embodiment of the present invention, when the first energy storage device stores thermal energy up to 3000°C, in order to realize the conversion between thermal energy and electrical energy, the thermoelectric conversion module, the pneumatic conveying equipment and the temperature control module can be adaptively adjusted according to the scenario. For example, the pipelines and the thermoelectric conversion modules in the pneumatic conveying equipment are made of high-temperature resistant materials, and the temperature range that can be measured by the temperature control module must include the highest temperature and the lowest temperature in the scenario.

[0033] In the embodiment of the present invention, the first energy storage medium can select energy storage particles that are resistant to high temperatures and have a large specific heat capacity, such as graphite particles. Graphite particles refer to tiny particles made of graphite materials. Graphite is a mineral composed of carbon elements, and its crystal structure is layered. The carbon atoms in each layer are bound by strong covalent bonds, and the layers interact with each other through weaker van der Waals forces. Graphite particles also have good thermal conductivity and can effectively transfer heat. And graphite has good stability to most chemical substances at room temperature. At the same time, graphite can maintain the stability of its physical and chemical properties in a high temperature environment, and the melting point of graphite is about 3652 degrees Celsius (6602 degrees Fahrenheit).

[0034] It should be noted that the specific material of the first energy storage medium in the embodiment of the present invention can be selected according to the actual application scenario and is not limited to the graphite particles in the above example. There is no excessive restriction on this in the embodiment of the present invention.

[0035] In the embodiment of the present invention, the second energy storage medium filled in the second energy storage device and the third energy storage medium filled in the third energy storage device can be the same as the first energy storage medium, or different from the first energy storage medium. The second energy storage medium and the third energy storage medium select corresponding energy storage medium according to the actual application scenario. Specifically, in actual applications, when the second energy storage medium and the third energy storage medium can select corresponding energy storage medium according to the operating temperature of the second energy storage device and the third energy storage device during the operation of the electric vehicle, there is a temperature gradient between the first energy storage device, the second energy storage device and the third energy storage device, then different media can be set according to the temperature gradient needs. For example, the temperature of the first energy storage device is the highest, which can be as high as 3000 degrees Celsius. Then the first energy storage medium needs to withstand materials that can withstand 3000°C, the second energy storage medium needs to withstand 2000°C; the third energy storage medium needs to withstand materials that can withstand 1000°C.

[0036] In one embodiment of the present invention, the first energy storage device is detachably connected to the electric transportation vehicle. Specifically, the first energy storage device can be set in a specific energy storage device buckle slot for fixation; the first energy storage device can be replaced at any time, and the operation is simple.

[0037] In another embodiment of the present invention, the heat stored in the first energy storage device may come from: solar energy, wind energy, valley electricity, refrigerators, industrial waste heat, geothermal energy, biomass energy, electricity conversion, environmental thermal energy, chemical reaction heat, nuclear energy, wind energy and tidal energy.

[0038] Among them, 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 is waste heat generated during industrial production, such as steel, chemical, and power industries, which 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. Thermal energy generated during biomass combustion or biomass pyrolysis can be stored for heating or power generation. Electric energy conversion can be converted into heat or cold energy for storage through resistance heating, electrochemical reactions, or electrolysis of water. Ambient thermal energy is thermal energy in the environment, such as heat in air, water, or soil, which can be extracted and stored through heat pump technology. Chemical reaction heat is heat released during certain chemical reactions, such as the heat generated by the reaction of sodium hydroxide with water. The heat generated in nuclear reactors can be used to generate steam, which in turn drives turbines to generate electricity and stores excess heat. Wind and tidal energy: The excess electrical energy generated by these renewable energy sources during power generation can be converted into thermal energy storage through electric heat conversion equipment.

[0039] In one embodiment of the present invention, in order to store and release more heat, a plurality of first energy storage devices may be used in the electric vehicle, and the plurality of first energy storage devices may be connected in series or in parallel.

[0040] The functions of the components of the above electric vehicle are as follows:

[0041] The pneumatic transport device in the embodiment of the present invention can be used to provide a fluid working medium to the first energy storage device through the delivery pump; wherein the fluid working medium can be air.

[0042] After the first energy storage device in the embodiment of the present invention is charged, the first energy storage medium filled is a high-temperature medium, carrying a large amount of heat energy, and the temperature in the first energy storage device can be as high as 3000 degrees Celsius. When the delivery pump of the gas transportation equipment is turned on, the fluid working medium is input into the first energy storage device from the bottom inlet of the first energy storage device through the circulation pipeline by the delivery pump. The first energy storage device can be used to heat the input fluid working medium using the heat-storing first energy storage medium, and transfer the heat energy from the first energy storage medium to the fluid working medium, so that the fluid working medium can take the heat energy out of the first energy storage device, thereby realizing the release of heat energy by the first energy storage device.

[0043] In an embodiment of the present invention, a thermoelectric conversion module can be provided in an electric vehicle, and the thermoelectric conversion module can be used to convert the heat energy carried by the fluid working medium into electrical energy; that is, the fluid working medium flowing out of the first energy storage device is transported to the thermoelectric conversion module by a circulation pipeline, and then the thermoelectric conversion module converts its heat energy into electrical energy, and the generated electrical energy can be used for the endurance of the electric vehicle, thereby improving the endurance of the electric vehicle.

[0044] In the embodiment of the present invention, since the operation of the thermoelectric conversion module may generate heat, and there is also heat energy that is not completely converted, in order to improve the thermoelectric conversion efficiency, a second energy storage device and a third energy storage device can be set after the thermoelectric conversion module, and the second energy storage device and the third energy storage device are used to recover the heat energy carried by the fluid working medium to improve the thermoelectric conversion efficiency. Specifically, the second energy storage device and the third energy storage device can be used to receive the fluid working medium output by the thermoelectric conversion module, and use the filled second energy storage medium or the third energy storage medium to exchange heat energy with the fluid working medium.

[0045] In one embodiment of the present invention, the electric vehicle may be provided with a temperature control module in order to better control the first energy storage device to release energy. The temperature control module may be used to control the first energy storage device to release heat energy on or off.

[0046] Specifically, the temperature control module can control the first energy storage device to start releasing heat energy when there is a demand for energy supply from the first energy storage device; and control the first energy storage device to stop releasing heat energy when the first energy storage device does not need energy supply.

[0047] In one example, one or more valves may be provided in the electric vehicle, and the temperature control system may control the valve associated with the first energy storage device to open or close the first energy storage device to release heat energy.

[0048] In one embodiment of the present invention, the temperature control system may include multiple temperature meters for monitoring temperature, thereby realizing the control of the first energy storage device to open or close the release of heat energy according to the temperature. Specifically, the temperature control module includes a first temperature meter (such as Figure 1 T1), and a second temperature controller (such as Figure 1 T2), a third temperature meter (such as Figure 1 T3), a fourth temperature meter (such as Figure 1 T4), a fifth temperature meter (such as Figure 1 T5) and a sixth temperature meter (such as Figure 1 (middle T6).

[0049] Among them, the temperature control module is used to monitor the temperature changes of the first energy storage device through the first thermometer and the second thermometer, monitor the temperature changes of the second energy storage device through the third thermometer and the fourth thermometer, and monitor the temperature changes of the three energy storage devices through the fifth thermometer and the sixth thermometer.

[0050] In one embodiment of the present invention, a first valve 11 is provided on the circulation pipeline before the inlet of the first energy storage device, a second valve 12 is provided on the circulation pipeline after the outlet of the energy storage device, a third valve 13 is provided on the circulation pipeline connected to the top of the second energy storage device, a fourth valve 14 is provided on the circulation pipeline connected to the bottom of the second energy storage device, a fifth valve 15 is provided on the circulation pipeline connected to the top of the third energy storage device, and a sixth valve 16 is provided on the circulation pipeline connected to the bottom of the third energy storage device.

[0051] Based on the temperature controller setting of the temperature control module and the valve setting on the circulation pipeline in the embodiment of the present invention, the control process of the temperature control module in the electric vehicle may include the following stages:

[0052] Heat release stage of the first energy storage device: the temperature control system is used to control the first valve, the second valve, the third valve and the fourth valve to be opened, and the fifth valve and the sixth valve to be closed during the heat release period of the first energy storage device, so that the first energy storage device releases heat energy and the second energy storage device recovers heat energy.

[0053] That is, the fluid working medium is delivered to the first energy storage device through a delivery pump, the first energy storage medium in the first energy storage device exchanges heat with the fluid working medium, the fluid working medium output from the first energy storage device is converted into electrical energy at the thermoelectric conversion module, and the electrical energy is used to drive the electric vehicle, and the converted fluid working medium is delivered to the second energy storage device through a circulation pipeline, in the second energy storage device, the second energy storage medium exchanges heat with the fluid working medium, and the waste heat carried by the fluid working medium is stored in the second energy storage medium, and then the second energy storage medium is sent back to the first energy storage device through the circulation pipeline to realize the circulation of the fluid working medium.

[0054] Heat release stage of the second energy storage device: the temperature control system is used to control the first valve and the second valve to close, and control the fifth valve and the sixth valve to open when the temperature of the first thermometer is lower than the first set value, so that the second energy storage device releases heat energy and the third energy storage device recovers heat energy.

[0055] The first setting value may be set according to actual scene requirements, and is not excessively limited in the embodiments of the present invention.

[0056] In actual applications, if the temperature of the first thermometer is lower than the first set value in this stage, it means that the residual heat of the first energy storage device is insufficient, and the first energy storage device stops releasing heat, and the second energy storage device continues to provide energy to the thermoelectric conversion module as a secondary energy source. After the third heat storage module is started, it is used to recover the waste heat of the fluid working fluid output by the thermoelectric conversion module.

[0057] That is, after the delivery pump is started, the fluid working medium is delivered to the second energy storage device 103 through the fourth valve. After the second energy storage medium in the second energy storage device 103 heats the fluid working medium, the heated fluid working medium can be delivered to the thermoelectric conversion module 102 through the third valve 13. After the thermoelectric conversion module 102 converts the thermal energy into electrical energy, the converted electrical energy is used to drive the motor to drive the electric vehicle. Then, the fluid working medium after the energy conversion can be input into the third energy storage device through the fifth valve 15. The third energy storage medium in the third energy storage device exchanges heat with the fluid working medium carrying waste heat, so that the heat of the fluid working medium is stored in the third energy storage device, and then the fluid working medium is output from the bottom, and enters the second energy storage device from the bottom of the second energy storage device again through the sixth valve 16, thereby realizing the circulation of the fluid working medium.

[0058] The second energy storage device and the third energy storage device release heat together: in the second stage, the second energy storage device releases heat, and the third energy storage device recovers waste heat. The temperature of the second energy storage device decreases and the temperature of the third energy storage device increases. When the temperatures of the second energy storage device and the third energy storage device are the same, the second energy storage device and the third energy storage device release heat together, that is, the second energy storage device and the third energy storage device jointly serve as the tertiary energy to supply energy to the thermoelectric conversion module.

[0059] In this stage, the temperature control system is also used to control the second energy storage device and the third energy storage device to release heat energy by matching the temperature monitored by the third thermometer with the temperature monitored by the fifth thermometer.

[0060] In this stage, after the delivery pump is turned on, the fluid medium enters the second energy storage device and the third energy storage device from the bottom of the second energy storage device and the bottom of the third energy storage device through the fourth valve 14 and the sixth valve 16 respectively, and the fluid medium is heated in the second energy storage device and the third energy storage device. The fluid medium heated in the second energy storage device is delivered to the thermoelectric conversion module from the top of the second energy storage device through the third valve, and the fluid medium heated in the third energy storage device is delivered to the thermoelectric conversion module from the top of the third energy storage device through the fifth valve. After the heat energy is converted into electrical energy in the thermoelectric conversion module, the air leaving the thermoelectric conversion module at this time has a low heat content and is not suitable for recycling. It can be used for heating pure electric vehicles or directly discharged.

[0061] The energy utilization rate of the thermoelectric conversion module can be improved by the multi-layer heat energy recovery in the embodiment of the present invention.

[0062] In one embodiment of the present invention, the electric vehicle also includes a central control module. When the second thermometer detects that the temperature of the energy storage device is lower than the second set value, the central control panel of the central control module may prompt "The energy of the energy storage device is about to run out, please charge"; the first energy storage device is connected to an external power supply, and the automatic temperature control module closes the valves at both ends of the energy storage device to prevent heat from escaping during the heat storage process; in this process, the electrical energy is converted into thermal energy for storage using a resistance wire arranged inside the first energy storage device; when the first thermometer detects that the temperature is higher than the set value, the central control panel prompts "The energy storage device is full, please unplug the power"; at the same time, the external power connection circuit is disconnected to avoid overcharging. After the vehicle is started, when receiving a command from the central control panel, the temperature control system opens the valves at both ends of the pump and the energy storage device; according to power requirements, the automatic temperature control system will dynamically adjust the pump speed.

[0063] In one embodiment of the present invention, the first valve 11 , the second valve 12 , the fourth valve 14 , and the sixth valve 16 may be two-way valves, and the third valve 13 and the fifth valve may be three-way valves.

[0064] Among them, the first end of the third valve 13 is connected to the thermoelectric conversion module 102, the second end is connected to the top of the second energy storage device 103, and the third end is connected to the circulation pipe between the second valve 12 and the thermoelectric conversion module 102; the first end of the fifth valve 15 is connected to the hot spot conversion module 102, the second end is connected to the top of the third energy storage device 104, and the third end is connected to the circulation pipe between the second valve 12 and the thermoelectric conversion module 102.

[0065] In one embodiment of the present invention, a seventh valve 17 can also be set on the circulation pipeline between the second valve and the thermoelectric conversion module. The seventh valve is a three-way valve, with the first end connected to the second valve 12, the second end connected to the hotspot conversion module 102, and the third end connected to the third valve 13.

[0066] A ninth valve 19 may be provided on the circulation pipeline between the delivery pump and the first valve, wherein a first end of the ninth valve 19 is connected to the delivery pump, a second end is connected to one end of the first valve, and a third end is connected to one end of the fourth valve.

[0067] An eighth valve 18 is arranged on the circulation pipeline between the first valve 11 and the sixth valve 16 . The eighth valve is a three-way valve, with a first end connected to the first valve 11 , a second end connected to the sixth valve 16 , and a third end connected to the circulation pipeline between the ninth valve 19 and the fourth valve 14 .

[0068] In the embodiment of the present invention, the first energy storage device releases heat as a backup energy source, and then generates electric energy for driving the electric vehicle through thermoelectric conversion. The first energy storage device can withstand high temperatures up to 3000°C. The first energy storage device has good heat storage effect and high heat storage density, thereby improving the endurance of the electric vehicle. In the embodiment of the present invention, the second energy storage device and the third energy storage device are provided to recover waste heat, which can improve the utilization rate of thermal energy and further enhance the endurance of the electric vehicle.

[0069] 2. Reference Figure 2 , showing a flow chart of the steps of a heat storage driving method provided by an embodiment of the present invention, applied to an electric vehicle driven by heat storage, a first energy storage device, a second energy storage device, a third energy storage device, a thermoelectric conversion module, a pneumatic conveying device and a temperature control module, the pneumatic conveying device includes a circulation pipeline and a delivery pump on the circulation pipeline, the delivery pump is connected to the inlet of the energy storage device through the circulation pipeline, and delivers a fluid working medium to the energy storage device, the first energy storage device is filled with a first energy storage medium, and the temperature of the first energy storage medium is not higher than 3000°C, the second energy storage device is filled with a second energy storage medium, and the third energy storage device is filled with a third energy storage medium, the outlet of the energy storage device is connected to the inlet of the thermoelectric conversion module through the circulation pipeline, and the outlet of the thermoelectric conversion module is connected to the top of the second energy storage device and The top of the third energy storage device is connected, the thermoelectric conversion inlet is connected to the top of the second energy storage device and the top of the third energy storage device, and the bottom of the second energy storage device and the bottom of the third energy storage device are connected to the bottom inlet of the first energy storage device through a circulation pipeline, wherein: the pneumatic transportation equipment is used to provide fluid working medium to the first energy storage device through the delivery pump; the first energy storage device is used to heat the input fluid working medium using the first energy storage medium for heat storage; the thermoelectric conversion module is used to convert the heat energy carried by the fluid working medium into electrical energy; the second energy storage device and the third energy storage device are used to receive the fluid working medium output by the thermoelectric conversion module, and use the filled second energy storage medium or the third energy storage medium to exchange heat energy with the fluid working medium; the temperature control module is used to control the first energy storage device to open or close to release heat energy.

[0070] The heat storage driving method of the electric vehicle based on the heat storage driving may specifically include the following steps:

[0071] Step S201, after the first energy storage device starts storing energy, using the delivery pump to deliver fluid to the first energy storage device;

[0072] Step S202, heating the input fluid working medium using the first energy storage medium storing heat in the first energy storage device;

[0073] Step S203, converting the heat energy carried by the fluid into electrical energy through the thermoelectric conversion module, so as to drive the electric vehicle with the electrical energy;

[0074] Step S204, transporting the fluid working medium after energy conversion by the thermoelectric conversion module to the second energy storage device or the third energy storage device, and using the filled second energy storage medium or the third energy storage medium to exchange heat energy with the fluid working medium.

[0075] In one embodiment of the present invention, the temperature control module can control the first energy storage device to start releasing heat energy when there is a demand for energy supply from the first energy storage device; when the first energy storage device does not need energy supply, the temperature control module can control the first energy storage device to stop releasing heat energy.

[0076] Specifically, one or more valves may be provided in the electric vehicle, and the temperature control system may control the valve associated with the first energy storage device to control the first energy storage device to be turned on or off to release heat energy.

[0077] In one embodiment of the present invention, the temperature control system may include multiple temperature meters for monitoring temperature, thereby realizing the control of the first energy storage device to open or close the release of heat energy according to the temperature. Specifically, the temperature control module includes a first temperature meter (such as Figure 1 T1), and a second temperature controller (such as Figure 1 T2), a third temperature meter (such as Figure 1 T3), a fourth temperature meter (such as Figure 1 T4), a fifth temperature meter (such as Figure 1 T5) and a sixth temperature meter (such as Figure 1 (middle T6).

[0078] Among them, the temperature control module is used to monitor the temperature changes of the first energy storage device through the first thermometer and the second thermometer, monitor the temperature changes of the second energy storage device through the third thermometer and the fourth thermometer, and monitor the temperature changes of the three energy storage devices through the fifth thermometer and the sixth thermometer.

[0079] In one embodiment of the present invention, a first valve 11 is provided on the circulation pipeline before the inlet of the first energy storage device, a second valve 12 is provided on the circulation pipeline after the outlet of the energy storage device, a third valve 13 is provided on the circulation pipeline connected to the top of the second energy storage device, a fourth valve 14 is provided on the circulation pipeline connected to the bottom of the second energy storage device, a fifth valve 15 is provided on the circulation pipeline connected to the top of the third energy storage device, and a sixth valve 16 is provided on the circulation pipeline connected to the bottom of the third energy storage device.

[0080] In one embodiment of the present invention, before using the filled second energy storage medium to exchange heat energy with the fluid working medium, it includes: during the heat release period of the first energy storage device, controlling the first valve, the second valve, the third valve and the fourth valve to be opened, and the fifth valve and the sixth valve to be closed.

[0081] In one embodiment of the present invention, before using the filled third energy storage medium to exchange heat energy with the fluid working medium, it includes: when the temperature of the first thermometer is lower than the first set value, controlling the first valve and the second valve to close, and controlling the fifth valve and the sixth valve to open, after the second energy storage device heats the fluid working medium, the heated fluid working medium is transported to the thermoelectric conversion module through the circulation pipeline, and after the thermoelectric conversion module converts heat energy into electrical energy, the converted fluid working medium is transported to the third energy storage device.

[0082] In one embodiment of the present invention, the heat storage driving method further includes: obtaining a first target temperature collected by the third thermometer, and obtaining a second target temperature collected by the fifth thermometer; when the first target temperature matches the second target temperature, controlling the second energy storage device and the third energy storage device to release heat energy.

[0083] That is, a fluid working medium is introduced into the second energy storage device and the third energy storage device, and after the fluid working medium is heated by the second energy storage device and the third energy storage device, the heated fluid working medium is transported to the thermoelectric conversion module for conversion of heat energy into electrical energy, the electrical energy generated by the thermoelectric conversion module drives the electric vehicle, and the fluid working medium after energy conversion is discharged or used for heating the electric vehicle.

[0084] In an embodiment of the present invention, after the first energy storage device starts storing energy, the delivery pump is used to deliver fluid working medium to the first energy storage device; the first energy storage medium that stores heat is used to heat the input fluid working medium in the first energy storage device; the thermal energy carried by the fluid working medium is converted into electrical energy through the thermoelectric conversion module, so as to drive the electric vehicle with the electrical energy; the fluid working medium after energy conversion by the thermoelectric conversion module is delivered to the second energy storage device or the third energy storage device, and the filled second energy storage medium or the third energy storage medium is used to exchange heat energy with the fluid working medium, so that the endurance of the electric vehicle can be improved by converting the heat of the first energy storage device into electrical energy, and the waste heat of the fluid working medium after energy conversion by the thermoelectric conversion module is recovered by the second energy storage device and the third energy storage device, so as to further improve the energy utilization rate and avoid waste.

[0085] It should be noted that, for the sake of simplicity, the method embodiments are described as a series of action combinations, but those skilled in the art should be aware that the embodiments of the present invention are not limited by the order of the actions described, because according to the embodiments of the present invention, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily required by the embodiments of the present invention.

[0086] An embodiment of the present invention further 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, and when the computer program is executed by the processor, the above heat storage driving method is implemented.

[0087] An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the above heat storage driving method is implemented.

[0088] As for the method embodiment, since it is basically similar to the product embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0089] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0090] Those skilled in the art will appreciate that the embodiments of the present invention may be provided as methods, devices, or computer program products. Therefore, the embodiments of the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the embodiments of the present invention may take the form of a computer program product 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 codes.

[0091] The embodiments of the present invention are described with reference to the flowcharts and / or block diagrams of the methods, terminal devices (systems), and computer program products according to the embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing terminal device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing terminal device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0092] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing terminal device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0093] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal device so that a series of operating steps are executed on the computer or other programmable terminal device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable terminal device to implement the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0094] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0095] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0096] The above provides a detailed introduction to a heat storage driven electric vehicle and a heat storage driving method. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A heat storage driven electric vehicle, characterized in that: The electric vehicle comprises: a first energy storage device, a second energy storage device, a third energy storage device, a thermoelectric conversion module, a pneumatic conveying device and a temperature control module, the pneumatic conveying device comprises a circulation pipeline and a delivery pump on the circulation pipeline, the delivery pump is connected to the inlet of the energy storage device through the circulation pipeline, and delivers a fluid working medium to the energy storage device, the first energy storage device is filled with a first energy storage medium, and the temperature of the first energy storage medium is not higher than 3000°C, the second energy storage device is filled with a second energy storage medium, and the third energy storage device is filled with a third energy storage medium, the outlet of the energy storage device is connected to the inlet of the thermoelectric conversion module through the circulation pipeline, the outlet of the thermoelectric conversion module is connected to the top of the second energy storage device and the top of the third energy storage device, the thermoelectric conversion inlet is connected to the top of the second energy storage device and the top of the third energy storage device, the bottom of the second energy storage device and the bottom of the third energy storage device are connected to the bottom inlet of the first energy storage device through the circulation pipeline, wherein: The pneumatic transport device is used to provide the first energy storage device with a fluid working medium through the delivery pump; The first energy storage device is used to heat the input fluid working medium using a first heat storage medium; The thermoelectric conversion module is used to convert the thermal energy carried by the fluid working medium into electrical energy; The second energy storage device and the third energy storage device are used to receive the fluid working medium output by the thermoelectric conversion module, and use the filled second energy storage medium or the third energy storage medium to exchange heat energy with the fluid working medium; The temperature control module is used to control the first energy storage device to turn on or off to release heat energy.

2. The electric vehicle according to claim 1, characterized in that: The temperature control module includes a first thermometer connected to the top of the first energy storage device, a second temperature controller connected to the bottom of the first energy storage device, a third thermometer connected to the top of the second energy storage device, a fourth thermometer connected to the bottom of the second energy storage device, a fifth thermometer connected to the top of the third energy storage device, and a sixth thermometer connected to the bottom of the third energy storage device.

3. The electric vehicle according to any one of claims 1 to 2, characterized in that: A first valve is arranged on the circulation pipeline before the inlet of the first energy storage device, a second valve is arranged on the circulation pipeline after the outlet of the energy storage device, a third valve is arranged on the circulation pipeline connected to the top of the second energy storage device, a fourth valve is arranged on the circulation pipeline connected to the bottom of the second energy storage device, a fifth valve is arranged on the circulation pipeline connected to the top of the third energy storage device, and a sixth valve is arranged on the circulation pipeline connected to the bottom of the third energy storage device.

4. The electric vehicle according to claim 3, characterized in that: The temperature control system is used to control the first valve, the second valve, the third valve and the fourth valve to be opened, and the fifth valve and the sixth valve to be closed during the heat release period of the first energy storage device, so that the first energy storage device releases heat energy and the second energy storage device recovers heat energy.

5. The electric vehicle according to claim 4, characterized in that: The temperature control system is used to control the first valve and the second valve to close, and control the fifth valve and the sixth valve to open when the temperature of the first thermometer is lower than a first set value, so that the second energy storage device releases heat energy and the third energy storage device recovers heat energy.

6. The electric vehicle according to claim 5, characterized in that: The temperature control system is also used to control the second energy storage device and the third energy storage device to release heat energy when the temperature of the third thermometer matches the temperature of the fifth thermometer.

7. The electric vehicle according to any one of claims 1 to 6, characterized in that: The first energy storage device is detachably connected to the electric vehicle.

8. A heat storage driving method, characterized in that: Applied to the electric vehicle according to any one of claims 1 to 7, the method comprises: After the first energy storage device starts storing energy, the delivery pump is used to deliver fluid to the first energy storage device; Using a first heat storage medium to heat the input fluid in the first energy storage device; The thermal energy carried by the fluid working medium is converted into electrical energy by the thermoelectric conversion module, so as to drive the electric vehicle with the electrical energy; The fluid working medium after energy conversion by the thermoelectric conversion module is transported to the second energy storage device or the third energy storage device, and the filled second energy storage medium or the third energy storage medium is used to exchange heat energy with the fluid working medium.

9. An electronic device, characterized in that: The device comprises a processor, a memory, and a computer program stored in the memory and capable of running on the processor, wherein the computer program implements the heat storage driving method as claimed in claim 8 when executed by the processor.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the heat storage driving method according to claim 8 is implemented.

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