A heat storage driven electric vehicle and a heat storage driving method

Abstract

The embodiment of the present application provides a heat storage driven electric vehicle and a heat storage driving method, 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 circulating pipeline and a conveying pump on the circulating pipeline, the first energy storage device is filled with a first energy storage medium, the temperature of the first energy storage medium is not higher than 3000 DEG C, the second energy storage device is filled with a second energy storage medium, the third energy storage device is filled with a third energy storage medium, the outlet of the energy storage device is connected with the inlet of the thermoelectric conversion module through the circulating pipeline, the 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, the inlet 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, and the bottom of the second energy storage device and the bottom of the third energy storage device are connected with the bottom inlet of the first energy storage device through the circulating pipeline.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy storage, in particular to a heat storage driven electric vehicle and a heat storage driving method. BACKGROUND

[0002] As a bridge connecting traditional energy and renewable energy, energy storage plays a crucial role.

[0003] Although renewable energy such as wind energy and solar energy has broad application prospects, its intermittency and volatility limit its wide application. At present, battery energy storage has become the mainstream solution due to its high energy density and long cycle life, which can effectively realize the space-time scheduling and "peak clipping" of energy. However, the high cost, initial investment, significant influence of environmental temperature on performance, and immature and high recovery cost of recovery technology are the main challenges of current technology. SUMMARY

[0004] In view of the above problems, a heat storage driven electric vehicle and a heat storage driving method are provided to overcome the above problems or at least partially solve the above problems, comprising:

[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 circulating pipeline and a conveying pump on the circulating pipeline, the conveying pump being connected with the inlet of the energy storage device through the circulating pipeline to convey fluid working medium for the energy storage device, the first energy storage device being filled with a first energy storage medium, and the first energy storage medium being subjected to a temperature not higher than 3000℃, the second energy storage device being filled with a second energy storage medium, the third energy storage device being filled with a third energy storage medium, the outlet of the energy storage device being connected with the inlet of the thermoelectric conversion module through the circulating pipeline, the outlet of the thermoelectric conversion module being connected with the top of the second energy storage device and the top of the third energy storage device, the inlet of the thermoelectric conversion being connected with 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 being connected with the bottom inlet of the first energy storage device through the circulating pipeline; wherein:

[0006] The pneumatic conveying device is used to provide fluid working medium for the first energy storage device through the conveying pump;

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

[0008] The thermoelectric conversion module is used to convert the heat 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 exchange heat energy with the fluid working medium by using the filled second energy storage medium or third energy storage medium.

[0010] The temperature control module is used to control the first energy storage device to open or close the release of heat energy.

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

[0012] Optionally, a first valve is arranged on the circulating pipeline before the inlet of the first energy storage device, a second valve is arranged on the circulating pipeline after the outlet of the first energy storage device, a third valve is arranged on the circulating pipeline connected to the top of the second energy storage device, a fourth valve is arranged on the circulating pipeline connected to the bottom of the second energy storage device, a fifth valve is arranged on the circulating pipeline connected to the top of the third energy storage device, and a sixth valve is arranged on the circulating pipeline 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, so that the first energy storage device releases heat energy and the second energy storage device recovers heat energy, during the heat release of the first energy storage device.

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

[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 temperature instrument matches the temperature of the fifth temperature instrument.

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

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

[0018] After the first energy storage device starts to store energy, the delivery pump is used to deliver fluid working medium to the first energy storage device.

[0019] The first energy storage medium with heat storage in the first energy storage device heats the input fluid working substance;

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

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

[0022] An electronic device comprises a processor, a memory, and a computer program stored on the memory and capable of running on the processor, and the computer program is executed by the processor to implement the heat storage driving method.

[0023] A computer readable storage medium, the computer readable storage medium stores a computer program, and the computer program is executed by a processor to implement the heat storage driving method.

[0024] The embodiment of the present application has the following advantages:

[0025] In the embodiment of the present application, the internal temperature of the thermoelectric conversion module is relatively high when the thermoelectric conversion module converts heat energy and electric energy for a long time, so that the hot fluid working substance leaving the thermoelectric conversion module has a relatively high temperature, and the second energy storage device and the third energy storage device can be used to recover the fluid working substance after heat energy conversion, so as to fully utilize the heat energy and avoid resource waste. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the present application, the following will briefly introduce the drawings needed to be used in the description of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

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

[0028] Figure 2 is a step flow chart of a heat storage driving method provided by an embodiment of the present application. DETAILED DESCRIPTION

[0029] In order to make the above objectives, characteristics and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0030] With reference to Figure 1 , a structure schematic diagram of a heat storage driven electric vehicle is shown, 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 circulating pipeline and a conveying pump 105 on the circulating pipeline, the conveying pump 105 is connected with the inlet of the energy storage device through the circulating pipeline, and the conveying pump 105 conveys fluid working medium for the energy storage device, the first energy storage device is filled with a first energy storage medium, and the first energy storage medium bears a temperature not higher than 3000 DEG C, the second energy storage device is filled with a second energy storage medium, the third energy storage device is filled with a third energy storage medium, the outlet of the energy storage device is connected with the inlet of the thermoelectric conversion module through the circulating pipeline, the 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, the inlet 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, and the bottom of the second energy storage device and the bottom of the third energy storage device are connected with the bottom inlet of the first energy storage device through the circulating pipeline.

[0031] In actual application, the first energy storage device can store heat energy up to 3000 DEG C, and the heat storage density is large, and then the first energy storage device can convert the stored heat energy into electric energy to continuously power the electric vehicle, thereby improving the endurance of the electric vehicle.

[0032] In the embodiment of the present application, when the first energy storage device stores heat energy up to 3000 DEG C, in order to realize the conversion between heat energy and electric energy, the thermoelectric conversion module, the pneumatic conveying device and the temperature control module can all be adaptively adjusted according to the scene, such as the pipeline in the pneumatic conveying device, the thermoelectric conversion module selects high-temperature-resistant material, and the measurable temperature range of the temperature control module needs to contain the highest temperature and the lowest temperature under the scene.

[0033] The first energy storage medium in the embodiment of the present application can select energy storage particles with high temperature resistance and large specific heat capacity, such as graphite particles. Graphite particles refer to small particles made of graphite material. Graphite is a mineral composed of carbon elements, and its crystal structure is layered. The carbon atoms in each layer are combined by strong covalent bonds, and the layers interact with each other by weak 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 its physical and chemical properties stable in 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 application can be selected according to the actual application scene, and is not limited to the graphite particles in the above examples. In the embodiment of the present application, this is not limited too much.

[0035] In the embodiment of the present application, 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 can be different from the first energy storage medium. The second energy storage medium and the third energy storage medium select the corresponding energy storage medium according to the actual application scene. Specifically, in actual application, when the second energy storage medium and the third energy storage medium can select the corresponding energy storage medium according to the operating temperature of the second energy storage device and the third energy storage device in the running process 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. Therefore, different media can be set according to the temperature gradient, for example, the temperature of the first energy storage device is the highest, which can be as high as 3000 degrees Celsius, so the first energy storage medium needs to withstand materials that can resist 3000 degrees Celsius, and the second energy storage medium needs to withstand materials that can resist 2000 degrees Celsius. The third energy storage medium needs to withstand materials that can resist 1000 degrees Celsius.

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

[0037] In another embodiment of the present application, the heat stored in the first energy storage device can come from solar energy, wind energy, off-peak electricity, refrigerators, industrial waste heat, geothermal energy, biomass energy, electric energy conversion, environmental heat energy, chemical reaction heat, nuclear energy, wind energy and tidal energy.

[0038] Among them, solar thermal energy can be collected by solar heat collectors and stored in thermal energy storage systems such as hot water storage tanks or phase change materials. Industrial waste heat is the waste heat generated in industrial production processes, such as steel, chemical, power and other 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. The heat generated in the process of biomass combustion or biomass pyrolysis can be stored for heating or power generation. Electrical energy conversion can convert electrical energy into thermal energy or cold energy through resistance heating, electrochemical reaction or electrolysis of water. Environmental heat energy is the heat energy in the environment, such as the heat energy in the air, water or soil, which can be extracted and stored through heat pump technology. The heat generated in the chemical reaction process can be used to generate steam to drive the turbine to generate electricity, and the excess heat can be stored. Wind energy and tidal energy: The excess electrical energy generated during power generation of these renewable energy sources can be converted into thermal energy storage through electrical heating conversion equipment.

[0039] In an embodiment of the present application, in order to store and release more heat, multiple first energy storage devices can be used in the electric vehicle, and the multiple first energy storage devices can be connected in series or in parallel.

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

[0041] The pneumatic transportation device in the embodiment of the present application can be used to provide fluid working substance for the first energy storage device through the delivery pump; wherein the fluid working substance can be air.

[0042] After charging, the filled first energy storage medium in the first energy storage device is a high-temperature medium carrying a large amount of heat, 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 device is turned on, the fluid working substance is input into the first energy storage device from the bottom inlet of the first energy storage device through the circulating pipeline by the delivery pump, and the first energy storage device can be used to heat the input fluid working substance with the heat stored in the first energy storage medium, transfer the heat from the first energy storage medium to the fluid working substance, so that the fluid working substance carries the heat out of the first energy storage device, realizing the release of heat by the first energy storage device.

[0043] In an embodiment of the present application, a thermoelectric conversion module can be provided in the electric vehicle, which can be used to convert the heat carried by the fluid working substance into electrical energy; that is, the fluid working substance flowing out of the first energy storage device is delivered to the thermoelectric conversion module through the circulating pipeline, and then the thermoelectric conversion module converts its heat 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 application, since the operation of the thermoelectric conversion module can generate heat, and there is also heat energy to be completely converted, in order to improve the thermoelectric conversion efficiency, a second energy storage device and a third energy storage device can be arranged behind 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, and 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 the filled second energy storage medium or third energy storage medium is used to exchange heat energy with the fluid working medium.

[0045] In an embodiment of the present application, in order to better control the first energy storage device to release energy, the electric vehicle can be provided with a temperature control module, which can be used to control the first energy storage device to open or close the release of heat energy.

[0046] Specifically, the temperature control module can control the first energy storage device to open the release of heat energy when there is a demand for energy supply of the first energy storage device; and when the first energy storage device does not need energy supply, the temperature control module controls the first energy storage device to close the release of heat energy.

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

[0048] In an embodiment of the present application, the temperature control system can include a plurality of temperature instruments for monitoring temperature, so as to control 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 instrument (such as T1 in Figure 1 ) connected to the top of the first energy storage device, a second temperature instrument (such as T2 in Figure 1 ) connected to the bottom of the first energy storage device, a third temperature instrument (such as T3 in Figure 1 ) connected to the top of the second energy storage device, a fourth temperature instrument (such as T4 in Figure 1 ) connected to the bottom of the second energy storage device, a fifth temperature instrument (such as T5 in Figure 1 ) connected to the top of the third energy storage device, and a sixth temperature instrument (such as T6 in Figure 1 ) connected to the bottom of the third energy storage device.

[0049] The temperature control module is used to monitor the temperature change of the first energy storage device through the first temperature instrument and the second temperature instrument, monitor the temperature change of the second energy storage device through the third temperature instrument and the fourth temperature instrument, and monitor the temperature change of the third energy storage device through the fifth temperature instrument and the sixth temperature instrument.

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

[0051] Based on the temperature control instrument arrangement of the temperature control module and the valve arrangement on the circulating pipeline in the embodiment of the present application, the control process of the temperature control module in the electric vehicle can include the following stages:

[0052] First energy storage device heat release stage: the temperature control system is used to control the first valve, the second valve, the third valve and the fourth valve to be opened during the heat release of the first energy storage device, and the fifth valve and the sixth valve to be closed, 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 transported to the first energy storage device by the transport 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 converts heat energy into electric energy at the thermoelectric conversion module, the electric energy is used to drive the electric vehicle, and the converted fluid working medium is transported to the second energy storage device through the circulating pipeline. In the second energy storage device, the second energy storage medium exchanges heat with the fluid working medium, and the residual 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 circulating pipeline, realizing the circulation of the fluid working medium.

[0054] Second energy storage device heat release stage: the temperature control system is used to control the first valve and the second valve to be closed and the fifth valve and the sixth valve to be opened when the temperature of the first temperature instrument 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 set value can be set according to actual scene requirements, which is not limited in the embodiment of the present application.

[0056] In actual application, the temperature of the first temperature instrument is lower than the first set value in this stage, which indicates that the residual heat of the first energy storage device is insufficient, so the first energy storage device stops releasing heat, the second energy storage device continues to provide energy for the thermoelectric conversion module as a secondary energy source, and the third heat storage module is started to recover the residual heat of the fluid working medium output by the thermoelectric conversion module.

[0057] That is, after the delivery pump is started, the fluid working substance is delivered to the second energy storage device 103 through the fourth valve, and the second energy storage medium in the second energy storage device 103 heats the fluid working substance, and then the heated fluid working substance can be delivered to the thermoelectric conversion module 102 through the third valve 13, and the thermoelectric conversion module 102 converts the heat energy into electric energy, and then drives the electric motor by using the converted electric energy to drive the electric vehicle, and then the fluid working substance after energy conversion can be input into the third energy storage device through the fifth valve 15, and the third energy storage medium in the third energy storage device exchanges heat with the fluid working substance carrying residual heat, so that the heat of the fluid working substance is stored in the third energy storage device, and then the fluid working substance 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, so as to realize the circulation of the fluid working substance.

[0058] The second energy storage device and the third energy storage device jointly release heat: in the second stage, the temperature of the second energy storage device decreases and the temperature of the third energy storage device increases during the process of the second energy storage device releasing heat and the third energy storage device recovering residual heat, and 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 jointly release heat, that is, the second energy storage device and the third energy storage device jointly supply energy to the thermoelectric conversion module as a three-level energy source.

[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 when the temperature monitored by the third temperature instrument matches the temperature monitored by the fifth temperature instrument.

[0060] In this stage, after the delivery pump is started, the fluid working substance 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 working substance is heated in the second energy storage device and the third energy storage device, and then the fluid working substance heated by 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 working substance heated by 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, and then the heat energy is converted into electric energy in the thermoelectric conversion module, and at this time, the air leaving the thermoelectric conversion module has low heat and is not suitable for recycling, and can be used for heating a pure electric vehicle or directly discharged.

[0061] Through the above-mentioned multi-layer heat energy recovery in the embodiment of the application, the energy utilization rate of the thermoelectric conversion module can be improved.

[0062] In an embodiment of the present application, the electric vehicle further comprises a central control module. When the second temperature instrument monitors that the temperature of the energy storage device is lower than the second set value, the central control panel of the central control module can prompt the words "the energy of the energy storage device will be exhausted, please charge"; the first energy storage device is connected to the external power supply, the automatic temperature control module closes the valves at both ends of the energy storage device to prevent heat from escaping during heat storage; in this process, the electric energy is converted into heat energy for storage by using the resistance wire arranged inside the first energy storage device; when the first temperature instrument monitors that the temperature is higher than the set value, the central control panel prompts the words "the energy of the energy storage device is full, please unplug the power"; at the same time, the external power supply connection circuit is disconnected to avoid overcharging. After the vehicle starts, when receiving the 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 the power requirement, the automatic temperature control system dynamically adjusts the pump speed.

[0063] In an embodiment of the present application, the first valve 11, the second valve 12, the fourth valve 14 and the sixth valve 16 can be bidirectional valves, and the third valve 13 and the fifth valve can be three-way valves.

[0064] 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 circulating pipeline between the second valve 12 and the thermoelectric conversion module 102; the first end of the fifth valve 15 is connected to the thermoelectric 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 circulating pipeline between the second valve 12 and the thermoelectric conversion module 102.

[0065] In an embodiment of the present application, a seventh valve 17 can be further arranged on the circulating pipeline between the second valve and the thermoelectric conversion module, the seventh valve is a three-way valve, the first end is connected to the second valve 12, the second end is connected to the thermoelectric conversion module 102, and the third end is connected to the third valve 13.

[0066] A ninth valve 19 can be arranged on the circulating pipeline between the delivery pump and the first valve, the first end of the ninth valve 19 is connected to the delivery pump, the second end is connected to one end of the first valve, and the third end is connected to one end of the fourth valve.

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

[0068] In the embodiment of the present application, 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 a high temperature of up to 3000 DEG 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 application, the second energy storage device and the third energy storage device are arranged to recover waste heat, thereby improving the heat energy utilization rate and further enhancing the endurance of the electric vehicle.

[0069] 2. Refer to Figure 2 , a step flow chart of a heat storage driving method is shown, which is applied to a heat storage driven electric vehicle. The heat storage driven 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 circulating pipeline and a conveying pump on the circulating pipeline. The conveying pump is connected with the inlet of the energy storage device through the circulating pipeline to convey fluid working medium for 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 DEG 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 with the inlet of the thermoelectric conversion module through the circulating pipeline. The 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. The inlet 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. The bottom of the second energy storage device and the bottom of the third energy storage device are connected with the bottom inlet of the first energy storage device through the circulating pipeline. Wherein, the pneumatic conveying device is used to provide fluid working medium for the first energy storage device through the conveying pump. The first energy storage device is used to heat the input fluid working medium by using the heat storage first energy storage medium. The thermoelectric conversion module is used to convert the heat energy carried by the fluid working medium into electric 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 exchange heat energy with the filled second energy storage medium or third energy storage medium. The temperature control module is used to control the first energy storage device to open or close the release of heat energy.

[0070] The heat storage driving method of the heat storage driven electric vehicle can specifically include the following steps:

[0071] In step S201, after the first energy storage device starts to store energy, the conveying pump is used to convey fluid working medium for the first energy storage device.

[0072] In step S202, the input fluid working medium is heated by using the heat storage first energy storage medium in the first energy storage device.

[0073] Step S203, converting the heat energy carried by the fluid working medium into electric energy by the thermoelectric conversion module, so as to drive the electric vehicle by the electric energy.

[0074] Step S204, delivering the fluid working medium after energy conversion of the thermoelectric conversion module to the second energy storage device or the third energy storage device, and exchanging heat energy between the filled second energy storage medium or the third energy storage medium and the fluid working medium.

[0075] In an embodiment of the present application, the temperature control module can control the first energy storage device to open and release heat energy when the first energy storage device needs to provide energy, and control the first energy storage device to close and release heat energy when the first energy storage device does not need to provide energy.

[0076] Specifically, in the electric vehicle, one or more valves can be further arranged, and the temperature control system can control the first energy storage device to open or close the release of heat energy by controlling the valve associated with the first energy storage device.

[0077] In an embodiment of the present application, the temperature control system can include a plurality of temperature instruments for monitoring temperature, so as to control 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 instrument (such as T1) connected to the top of the first energy storage device, a second temperature instrument (such as T2) connected to the bottom of the first energy storage device, a third temperature instrument (such as T3) connected to the top of the second energy storage device, a fourth temperature instrument (such as T4) connected to the bottom of the second energy storage device, a fifth temperature instrument (such as T5) connected to the top of the third energy storage device, and a sixth temperature instrument (such as T6) connected to the bottom of the third energy storage device. Figure 1 Figure 1 Figure 1 Figure 1 Figure 1 Figure 1

[0078] The temperature control module is configured to monitor the temperature change of the first energy storage device by the first temperature instrument and the second temperature instrument, monitor the temperature change of the second energy storage device by the third temperature instrument and the fourth temperature instrument, and monitor the temperature change of the third energy storage device by the fifth temperature instrument and the sixth temperature instrument.

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

[0080] In an embodiment of the present application, before the filled second energy storage medium exchanges heat with the fluid working substance, the method comprises: during the heat release 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 an embodiment of the present application, before the filled third energy storage medium exchanges heat with the fluid working substance, the method comprises: when the temperature of the first temperature instrument is lower than a first set value, controlling the first valve and the second valve to be closed, and controlling the fifth valve and the sixth valve to be opened; after the second energy storage device heats the fluid working substance, the heated fluid working substance is transported to the thermoelectric conversion module through the circulating pipeline; after the thermoelectric conversion module converts heat energy into electric energy, the converted fluid working substance is transported to the third energy storage device.

[0082] In an embodiment of the present application, the heat storage driving method further comprises: acquiring a first target temperature collected by the third temperature instrument, and acquiring a second target temperature collected by the fifth temperature instrument; 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, the fluid working substance is introduced into the second energy storage device and the third energy storage device, the fluid working substance is heated by the second energy storage device and the third energy storage device, the heated fluid working substance is transported to the thermoelectric conversion module to convert heat energy into electric energy, the electric energy generated by the thermoelectric conversion module is used to drive the electric vehicle, and the fluid working substance after energy conversion is exhausted or used for heating the electric vehicle.

[0084] In the embodiment of the present application, after the first energy storage device starts to store energy, the delivery pump is used to deliver fluid working substance to the first energy storage device; the first heat storage medium in the first energy storage device is used to heat the input fluid working substance; the heat energy carried by the fluid working substance is converted into electric energy by the thermoelectric conversion module, so as to drive the electric vehicle by using the electric energy; the fluid working substance after energy conversion of the thermoelectric conversion module is delivered to the second energy storage device or the third energy storage device, and the second energy storage medium or the third energy storage medium is used to exchange heat with the fluid working substance, so that the heat of the first energy storage device is converted into electric energy, the endurance of the electric vehicle is improved, and the energy utilization rate is further improved by recycling the waste heat of the fluid working substance after energy conversion of the thermoelectric conversion module by the second energy storage device and the third energy storage device, and waste is avoided.

[0085] It should be noted that, for the method embodiment, in order to simply describe, it is expressed as a series of action combinations, but those skilled in the art should know that the embodiment of the present application is not limited by the order of the described actions, because according to the embodiment of the present application, certain steps can be performed in other order or simultaneously. Secondly, those skilled in the art should know that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily necessary for the embodiment of the present application.

[0086] An electronic device is also provided in an embodiment of the present application, which can include a processor, a memory, and a computer program stored on the memory and capable of running on the processor, and the computer program is executed by the processor to implement the heat storage driving method.

[0087] A computer readable storage medium is also provided in an embodiment of the present application, and a computer program is stored on the computer readable storage medium, and the computer program is executed by the processor to implement the heat storage driving method.

[0088] For the method embodiment, it is basically similar to the product embodiment, so the description is relatively simple, and the relevant parts are described in the part of the method embodiment.

[0089] Each embodiment in the specification is described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

[0090] Those skilled in the art will appreciate that embodiments of the application can be readily used as software, hardware, or a combination of software and hardware. In one embodiment, the present application can be implemented in software and / or firmware. In particular, various

[0091] Embodiments of the application are described herein with reference to flowchart illustrations and / or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the application. 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 processing device or other programmable data processing terminal devices to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal devices, create means for implementing the functions specified in the flowchart Figure 1 one or more functions specified in the flowchart block or blocks. Figure 1 one or more functions specified in the flowchart block or blocks.

[0092] These computer program instructions can also be stored in a computer- readable memory 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 memory produce an article of manufacture including instructions which implement the function specified in the flowchart block or blocks. Figure 1 one or more functions specified in the flowchart block or blocks. Figure 1 one or more functions specified in the flowchart block or blocks.

[0093] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal device to cause a series of operational steps to be performed on the computer or other programmable terminal device to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal device provide steps for implementing the function specified in the flowchart block or blocks. Figure 1 one or more functions specified in the flowchart block or blocks. Figure 1 one or more functions specified in the flowchart block or blocks.

[0094] While preferred embodiments of the application have been described, modifications and variations can be apparent to those skilled in the art once aware of the general underlying concepts. Accordingly, the appended claims are intended to embrace all such modifications and variations as fall within the scope of the application.

[0095] Finally, it is to be understood that the phraseology or terminology such as "first" and "second" etc. used herein is merely intended to differentiate one entity or operation from another entity or operation, without necessarily requiring or implying any actual such relationship or order between such entities or operations. Moreover, the terms "comprising", "including", or any other closure, are intended to cover the non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include those elements alone but can include other elements not expressly listed or even include elements inherent in such process, method, article, or apparatus. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0096] The above provides a heat storage driven electric vehicle and a heat storage driving method, and the principles and implementation modes of the present application are described by applying specific examples. The above example is only used to help understand the method and core idea of the present application. For those skilled in the art, the specific implementation mode and application range can be changed according to the idea of the present application. In summary, the content of the specification should not be understood as a limitation of the present application.

Claims

1. A heat-accumulation-driven electric vehicle, characterized by comprising: 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 circulating pipeline and a conveying pump on the circulating pipeline, the conveying pump is connected with the inlet of the first energy storage device through the circulating pipeline to convey fluid working medium for the first energy storage device, the first energy storage device is filled with a first energy storage medium, and the first energy storage medium bears a temperature not higher than 3000 DEG C, the second energy storage device is filled with a second energy storage medium, the third energy storage device is filled with a third energy storage medium, the outlet of the first energy storage device is connected with the inlet of the thermoelectric conversion module through the circulating pipeline, the 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, the inlet 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, the bottom of the second energy storage device and the bottom of the third energy storage device are connected with the bottom inlet of the first energy storage device through the circulating pipeline, wherein: a third valve is arranged on the circulating pipeline connected with the top of the second energy storage device, a fifth valve is arranged on the circulating pipeline connected with the top of the third energy storage device, the third valve and the fifth valve are three-way valves, the first end of the third valve is connected with the thermoelectric conversion module, the second end is connected with the top of the second energy storage device, and the third end is connected on the circulating pipeline between the second valve and the thermoelectric conversion module; the first end of the fifth valve is connected with the thermoelectric conversion module, the second end is connected with the top of the third energy storage device, and the third end is connected on the circulating pipeline between the second valve and the thermoelectric conversion module; The pneumatic conveying device is used for providing fluid working medium for the first energy storage device through the conveying pump; The first energy storage device is used for heating the input fluid working medium by using the heat-stored first energy storage medium; The thermoelectric conversion module is used for converting the heat energy carried by the fluid working medium into electric energy; The second energy storage device and the third energy storage device are used for receiving the fluid working medium output by the thermoelectric conversion module and exchanging heat energy with the filled second energy storage medium or third energy storage medium; The temperature control module is used for controlling the first energy storage device to open or close the release of heat energy.

2. The electric vehicle of claim 1, wherein, The temperature control module comprises a first temperature instrument connected with the top of the first energy storage device, a second temperature instrument connected with the bottom of the first energy storage device, a third temperature instrument connected with the top of the second energy storage device, a fourth temperature instrument connected with the bottom of the second energy storage device, a fifth temperature instrument connected with the top of the third energy storage device and a sixth temperature instrument connected with the bottom of the third energy storage device.

3. The electric vehicle of claim 2, wherein, A first valve is arranged on the circulating pipeline before the inlet of the first energy storage device, a second valve is arranged on the circulating pipeline after the outlet of the first energy storage device, a fourth valve is arranged on the circulating pipeline connected with the bottom of the second energy storage device, and a sixth valve is arranged on the circulating pipeline connected with the bottom of the third energy storage device.

4. The electric vehicle according to claim 3, characterized in that: The temperature control module is configured 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 when the first energy storage device releases heat and the second energy storage device recovers heat.

5. The electric vehicle of claim 4, wherein: The temperature control module is configured to control the first valve and the second valve to be closed and the fifth valve and the sixth valve to be opened when the temperature of the first temperature instrument is lower than a first set value, so that the second energy storage device releases heat and the third energy storage device recovers heat.

6. The electric vehicle of claim 5, wherein: The temperature control module is further configured to control the second energy storage device and the third energy storage device to release heat when the temperature of the third temperature instrument matches the temperature of the fifth temperature instrument.

7. The electric vehicle of any one of claims 1 to 6, wherein, The first energy storage device is detachably connected to the electric vehicle.

8. A heat storage driving method characterized by comprising: The method is applied to the electric vehicle of any one of claims 1 to 7, and the method comprises: After the first energy storage device is turned on, the delivery pump is used to deliver fluid working substance to the first energy storage device; The first energy storage medium in the first energy storage device is used to heat the input fluid working substance; The thermoelectric conversion module is used to convert the heat energy carried by the fluid working substance into electric energy, so that the electric energy is used to drive the electric vehicle; The fluid working substance after energy conversion of 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 substance.

9. An electronic device, comprising: A computer program is stored on the computer readable storage medium and is executable on the processor, and the computer program is executed by the processor to implement the heat storage driving method of claim 8.

10. A computer-readable storage medium, characterized in that, A computer program is stored on the computer readable storage medium and is executable on the processor, and the computer program is executed by the processor to implement the heat storage driving method of claim 8.

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