CN115954580A - Vehicle-mounted solar photovoltaic photo-thermal integrated energy management device - Google Patents
Vehicle-mounted solar photovoltaic photo-thermal integrated energy management device Download PDFInfo
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Abstract
The invention discloses a vehicle-mounted solar photovoltaic photo-thermal integrated energy management device, which takes a PVT module as a main body, is matched with an energy storage module taking a phase-change material as a main component, and surrounds a battery pack through a pipeline in a mode of absorbing heat at high temperature and releasing heat at low temperature by utilizing the phase-change material, so that the temperature of the battery pack is uniformly heated or cooled, the temperature control of a battery is realized through proper energy storage/release, and a display monitoring system in a control system is combined, so that a vehicle-mounted solar photovoltaic photo-thermal integrated energy management teaching instrument system is formed.
Description
Technical Field
The invention relates to the field of teaching instruments for comprehensive utilization of solar energy and battery energy management, in particular to a vehicle-mounted solar photovoltaic and photo-thermal integrated energy management device, and particularly relates to a battery temperature control vehicle-mounted photovoltaic and photo-thermal integrated (PVT) energy supply and storage device.
Background
With the development of science and technology, electric vehicles are more and more the focus of social attention, because electric vehicles are used as power when driving, do not need to be carried with traditional engines, and the environmental protection performance is stronger. However, the environmental temperature causes the battery of the automobile to be unable to reach the ideal temperature when in operation, and the performance of the electric automobile is easily affected by the temperature of the battery, so that the cruising ability is gradually reduced in the using process, and the working temperature is too high, thereby causing the explosion hidden trouble. A new energy automobile power generation device (CN 113415168B) is mainly designed, a containing box is placed at the roof of a vehicle, a plurality of solar power generation modules are arranged in the containing box, and when power generation is needed, the solar power generation modules are pulled out of the containing box to generate power; when not needing to charge, be drawn into the containing box in, this system usage is single, and the in service behavior is limited, only charges the car, and the volume is great, is unfavorable for the operation. The utility model provides a solar panel fixing device (CN 115173791A) for new energy automobile, this system mainly designs solar panel draw-out device, and in the roof containing box was arranged in to the panel, the containing box inboard was equipped with driving motor, and the gear is connected to the outside, accomodates and takes out solar panel through axis of rotation and adjustment mechanism, but this system's application range is little, and whole operation structure is complicated. A vehicle-mounted photovoltaic PVT temperature control device and an operation method (CN 114312334A, CN 216833237U and CN 216833115U) aims at that when the battery temperature is uncomfortable or cannot be started when a new energy automobile is started in winter and summer, the temperature is adjusted to reach constant temperature by using the vehicle-mounted photovoltaic PVT temperature control device, a constant temperature system is added on the basis of a traditional energy automobile, the electricity consumption of an original battery is reduced by recycling renewable energy, but the system only reduces the consumption of a battery pack, does not have energy storage and efficient utilization of redundant energy, is small in pertinence of reducing energy consumption, and is complicated in assembly and work flow for vehicle-mounted use. A double-heat-source heat pump system suitable for an electric automobile and an operation method thereof (CN 113103841B) adopt the double-heat-source heat pump system, a heat pump evaporator and a photovoltaic are combined into a whole by utilizing a PVT heat pump technology, the photovoltaic waste heat can be fully absorbed, the temperature of a photovoltaic assembly is effectively reduced, the power generation efficiency is improved, meanwhile, the photovoltaic waste heat is utilized as the supplement of an existing air source heat pump heat source of the electric automobile, the performance of the heat pump is improved, the power consumption of the heat pump is reduced, and the cruising ability of the electric automobile is improved. The utility model provides a new energy automobile is with on-vehicle expansion solar power system (CN 113352902A) this system mainly sets up the box on the roof to on-vehicle expansion solar power system, and the box both sides all set up the side door, articulated bracing piece on the bottom surface, when not using, the bracing piece is folding in the box, and the box symmetry sets up two multistage electronic telescoping cylinders, and when the telescopic link stretches out, the bracing piece is located the telescopic link below and supports it, and the front end all sets up articulated seat, sets up a pair of solar panel between every two adjacent articulated seats, and solar panel expandes to become the level form during the use, does not use solar panel folding to accomodate in the box. The system solves the problem of endurance of the rechargeable electric vehicle everywhere, but the system only considers the characteristic of solar power supply in a single way and ignores the energy generated by the battery. The utility model provides a new energy automobile electric quantity is retrieved with automatic electricity generation transmission equipment that charges (CN 114889439A), this system is designed to electric quantity recovery is used in the car, install the wheel in the one end of transmission shaft, install the generator at the variable speed output shaft of gearbox, install wind collection electric power storage structure on the generator, the rotation of transmission shaft can drive the generator and rotate, the generator produces the electric quantity, and lead to the inverter and carry the electric quantity again in the battery, realize the recovery of electric quantity, reduce the consumption of electric quantity, but this system whole operation is complicated and equip and have the great difficult installation operation of generator volume, and only consider the problem of electric quantity release, do not consider the heat dissipation of battery and the potential safety hazard that probably takes place. In the Jie Chenning analysis of the maintenance and service strategy of the new energy automobile power battery, it is mentioned that the electric new energy automobile needs to start the automobile by electricity, so that the service life of the battery needs to be prolonged by charging, and the damage to the battery due to overlong charging time is avoided as much as possible, and at the present stage, the charging time of most new energy automobiles in China is generally about 10 hours. However, frequent and unreasonable charging often causes irreparable damage to the power battery. Therefore, the temperature control of the battery and the collection and storage of heat are particularly important for realizing the multi-utilization of energy.
The existing technology is limited to a PVT automobile heat management device and cannot fundamentally solve the temperature control problem of a battery in an electric automobile; the original technology has complex structure, inconvenient use, large occupied space, heavy load to the vehicle and difficult disassembly; the original PVT automobile heat management device cannot effectively utilize stored heat and energy generated by a battery, so that the loss is large, a large amount of generated heat cannot be effectively recycled, the application range is limited to a certain extent, potential safety hazards exist, and the overall effect is influenced; the conventional PVT automobile heat management device has the advantages of more related parts, higher cost and low cost performance; the original PVT automobile heat management device has the advantages of less heat transfer medium, low efficiency, no long-time operation convenience and poor performance, and the device is unstable in operation; the conventional PVT automobile heat management device has a narrow use surface; aiming at an automobile battery thermal management teaching instrument, PVT automobile thermal management is not used and disclosed yet.
Disclosure of Invention
In order to solve the problems that the battery temperature of an electric automobile in winter and summer does not accord with the ideal temperature, so that the vehicle performance is poor, the battery is easy to self-ignite and self-explode, and the energy cannot be fully utilized, the invention provides the vehicle-mounted solar photovoltaic photo-thermal integrated energy management device, which is suitable for the energy and related fields, realizes the temperature control and heat collection and storage of the battery, realizes the multiple utilization of the energy, and meets various requirements, such as the battery temperature control of the electric automobile, the seat heating, the operation of an electric heating system in a motor home, the use of electric equipment in the automobile and the like; the automobile tail-light-emitting device is effectively applied to various different types of automobile models and is suitable for different positions of automobiles (such as the top, the front cover, the rear cover, the tail wing, the automobile bodies on two sides, the rear glass of the automobile and the like). The PVT thermal management method is visually displayed in the automobile battery thermal management teaching, and students are guided to carry out corresponding system installation and debugging.
The system comprises a PVT module, an energy storage module which takes a common phase-change material as a main component, a control system, a working medium circulating system and an application end. According to the vehicle-mounted solar photovoltaic photo-thermal integrated energy management device, the battery is effectively heated or cooled in the process of collecting and releasing heat, the performance of the vehicle is protected and improved, the energy storage module adopts a phase-change material for storing energy, and the temperature of the battery is controlled through proper energy storage/release.
In summer, the temperature of the automobile battery is higher than the ideal temperature, the phase-change material controls the temperature of the automobile battery to be the ideal temperature of the battery all the time, collected heat is directly supplied to an application end with heat demand, and electric energy is stored in the storage battery, utilized and supplied to other use sides. Meanwhile, the stored electric energy in the storage battery can also provide enough energy for a control system, a pump and other electric equipment, and the invention supports the transmission of heat energy and electric energy to an application end by utilizing a working medium circulating system, realizes the multiplexing of energy utilization and reduces the energy waste.
In winter, the temperature of the automobile battery is lower than the ideal temperature, the phase-change material enables the stored heat to rise to the ideal temperature, the normal operation of the automobile is kept, and the energy utilization efficiency is maximized. The invention pays attention to the flexibility of modularization and teaching, realizes the purpose of different effects of different modules through the operation of a control system, implements modularized operation, enables an operator to control more flexibly and meets different user requirements. The invention has higher cost performance, flexibility and operability, simple working process, light and portable whole equipment and smaller occupied space; the structure is simple, the installation mode is simple, and the self-installation can be realized according to the self condition; the teaching aid can be automatically adjusted according to teaching requirements; the working performance is stable, and the continuous operation can be realized; the intelligent automobile battery heat management control system can meet different requirements of users, has wide application market prospect, can be applied to the field of teaching instruments, and can also be used for battery heat management control on a real automobile.
In order to achieve the above object, the present invention adopts the following technical solutions: a vehicle-mounted solar photovoltaic photo-thermal integrated energy management device takes a PVT module (1) as a main body, utilizes a working medium circulating system consisting of a pump (4) and a pipeline to transfer heat collected by the PVT module (1) to a phase-change material energy storage module (2) for storage, carries out temperature control on a battery through energy storage/release of a battery heat absorption and release application structure, further provides collected redundant energy to other use sides, can be converted and utilized between the heat energy and the electric energy, converts the collected redundant energy into electric energy, stores the electric energy in a storage battery (5), and provides the stored electric energy to the pump (4), a control system (3) and other application ends (6);
the phase-change material energy storage module (2) releases heat to the application end (6) by using a working medium circulating system;
the PVT module (1) comprises a glass cover plate (7), an air layer (8), a heat collection plate (9), a pipeline (10) and a heat preservation layer (11) which are arranged from top to bottom, light energy is converted into heat energy through sunlight incident from the glass cover plate (7), the working medium flows through the pipeline (10) to collect heat, the collected heat energy is transmitted to the next module, and heat preservation is carried out through the heat preservation layer (11);
the control method comprises the following steps:
the phase change material energy storage module (2) is composed of a phase change material (16) and a pipeline A (15), the pipeline A (15) is laid inside the phase change material (16), the phase change material (16) wraps the whole pipeline A (15), a working medium enters from a pipeline inlet A (13) and exits from a pipeline outlet A (14) to transfer heat, and the phase change material (16) continuously absorbs the heat through the pipeline A (15) until enough heat is stored and acts with the PVT module (1) in a combined manner to provide heat energy or electric energy for the temperature control requirement of a battery or the requirements of other application ends, so that the energy is efficiently utilized;
in summer, when the temperature of the battery is higher than 40 ℃, the control system (3) sends a signal, the phase-change material energy storage module (2) and the battery heat absorption and release application structure start to work, and meanwhile, the pump (4) is also controlled, and the heat absorption is carried out through the phase-change material by utilizing the flowing of a working medium in the pipeline (10), so that the temperature of the battery is reduced to be proper;
when the temperature of the battery is lower than 10 ℃ in winter, the control system (3) sends a signal to control the PVT module (1) to start heat collection, the phase-change material energy storage module (2) and the battery heat absorption and release application structure to start working, and simultaneously the pump (4) is also controlled to release heat through the phase-change material by utilizing the flowing of the working medium in the pipeline (10), so that the temperature of the battery is raised to a proper temperature; after the energy collected by the PVT module is used, the redundant energy is transferred to the energy storage module through the working medium circulating system to be stored, and the residual energy is collected to be directly used for heat energy utilization so as to be supplied to an application end; the electric energy obtained by the PVT module is stored by the storage battery, and according to different requirements of application ends, the electric energy stored in the storage battery can provide electric energy for the pump and the control system and can be released when other application ends need to be used;
in transition seasons, the temperature of the battery is controlled to be 10-40 ℃ to meet the normal operation of a vehicle, redundant energy collected by PVT and phase change materials is transmitted to the energy storage module through the working medium circulation system to be stored, and heat energy can be directly utilized for an application end; the electric energy can also be stored by a storage battery to provide energy for the control system and the pump.
Further, the battery heat absorption and release application structure is arranged in a mode that a battery pack (18) is wrapped by phase change materials (20), a cover plate (17) is matched, meanwhile, a pipeline B (19) surrounds the battery pack in an S-shaped or other mode, and the temperature of the battery pack is guaranteed to be uniformly heated or cooled through flowing of working media from a pipeline inlet B (21) to a pipeline outlet B (22), so that the working performance of the battery pack is stable, the phase change materials absorb heat at high temperature, the phase change materials release heat at low temperature, and the residual energy is directly supplied to a user for use or storage so as to be supplied to other application ends.
Furthermore, the device is used for various vehicle types, the PVT module (1) can be placed at different positions of the vehicle, such as a front cover (23), a roof (24), vehicle rear glass (25), a rear cover (26) and a tail wing (27), and a transparent cover plate and transparent heat-absorbing paint are selected when the device is placed on the rear glass (25); the phase change material and other accessories can be installed in the vehicle body, and the available space position of the whole vehicle is effectively utilized.
Advantageous effects
Compared with other application devices and other teaching instruments, the vehicle-mounted solar photovoltaic photo-thermal integrated energy management device has the following advantages:
the energy-saving device is suitable for energy-related fields, effectively reduces energy waste and realizes the maximization of energy utilization efficiency. The device realizes the control by temperature change and the collection storage heat to the electric automobile battery to carry out high-efficient utilization to it, be applied to other application ends in the car, like operation, the use of consumer in car of battery accuse temperature, seat heating, electric heating system in the car as a house etc. if application end demand heat energy, energy storage module can directly provide heat energy and utilize, and all the other energy conversion are stored and are utilized to the electric energy.
The device can be used for various vehicle types, the PVT module is suitable for being installed at different positions of a vehicle (a roof, two sides of the vehicle body, a front cover, a rear cover, rear glass of the vehicle, an empennage and the like), the phase change material and other accessories can be installed inside the vehicle body, and the integral available space position of the vehicle is effectively utilized.
The device is used in the field of teaching experiment practice, and visually shows the method and performance of PVT battery thermal management, and visually helps students to understand different forms of battery thermal management methods.
The device selects and configures different modules according to different vehicle and user requirements, realizes internal modularization and is suitable for different user types.
The surface of the PVT plate is sprayed with a heat absorption material to absorb sunlight incident through the transparent cover layer to convert light energy into heat energy, and an internal pipeline flow channel is laid in an S shape (or can be in other various forms) to act together with the phase change energy storage material, so that the temperature control of the battery is ensured, and the energy is efficiently utilized.
The phase-change energy storage material technology adopts a phase-change material (the phase-change material has the characteristic of good heat conduction) as a heat transfer medium to achieve the purpose of heat storage, changes the physical state in the process of temperature change, and has the property of phase-change latent heat. The phase-change material used in the invention is stable and insulating, and does not produce chemical reaction on equipment in contact with the phase-change material, thereby ensuring the stable operation state. The technical bottleneck problems that the traditional management device is complex in operation and large in occupied space, and heat generated in the discharging process of the power lithium battery, especially a large amount of heat generated under the high-rate discharging working condition cannot be effectively recycled are solved. The device is small in size, greatly improves the vehicle utilization space, is simpler in structure, is easy to operate, and can adapt to users with more different requirements.
In consideration of cost, compared with the same type of equipment on the market, the device is lower in price, and the used materials are green, environment-friendly, energy-saving and low-carbon. Through phase change material's energy storage, can utilize heat energy more high-efficiently, no matter from the perspective such as portability, cost or from battery protection, this device can provide audio-visual battery thermal management technique show and performance experiment test etc. for the student as teaching experiment practice device better to can be further for more extensive automobile user service.
Drawings
Fig. 1 is a front view of a vehicle-mounted solar photovoltaic photo-thermal integrated energy management device (a thick solid line is a working medium flow channel, a thick dotted line is a phase-change material releasing heat to an application end by using a working medium, a thick dotted line is a phase-change material absorbing heat from the application end by using the working medium, a thin line is a current channel, and a thin dotted line is control).
Fig. 2 shows a schematic structure of a PVT module.
Fig. 3 is a schematic structural diagram of a phase change material energy storage module.
Fig. 4 is a schematic diagram of a structure of a battery heat absorption and release application.
FIG. 5 is a specific placement diagram of a vehicle-mounted solar photovoltaic photo-thermal integrated energy management device PVT.
Fig. 6 is a general flow chart of the vehicle-mounted solar photovoltaic photo-thermal integrated energy management device.
FIG. 7 is a flow chart of battery temperature control.
Fig. 8 shows the energy demand in a vehicle, for example, a motor home.
Fig. 9 shows an initial temperature rise state of the battery.
Fig. 10 shows the temperature distribution of the battery after the temperature rise for 30 seconds.
The battery temperature rises within 1-3min in the figure 11.
FIG. 12 PVT water flow channel temperature profile.
Figure 13 PVT water flow channel pressure profile.
Reference numerals: 1-PVT module, 2-phase change material energy storage module, 3-control system, 4-pump, 5-storage battery, 6-application end, 7-glass cover plate, 8-air layer, 9-heat collection plate, 10-pipeline, 11-heat preservation layer, 12-shell, 13-pipeline inlet A, 14-pipeline outlet A, 15-pipeline A,16, 20-phase change material, 17-cover plate, 18-battery pack, 19-pipeline B, 21-pipeline inlet B, 22-pipeline outlet B, 23-front machine cover, 24-roof, 25-vehicle rear glass, 26-rear machine cover and 27-empennage.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings. The embodiment is implemented on the premise of the technical scheme of the invention, and a detailed embodiment and a specific operation process are given.
The invention takes a PVT module as a main body, is matched with an energy storage module which takes a phase-change material as a main component, surrounds a battery pack through a pipeline, absorbs heat through the phase-change material when the battery is at high temperature, releases heat through the phase-change material when the battery is at low temperature, ensures that the temperature of the battery pack is uniformly heated or cooled, realizes the temperature control of the battery through proper energy storage/release, and forms a vehicle-mounted solar photovoltaic photo-thermal integrated energy management teaching instrument system by combining a display monitoring system in a control system.
As shown in fig. 1, the system uses a PVT module 1 as a main body, utilizes selective coating to improve photovoltaic power generation effect, utilizes heat absorption coating to improve solar energy absorption effect, utilizes a working medium circulating system composed of a pump 4 and a pipeline to transfer heat to a phase-change material energy storage module 2, continuously stores the heat until enough heat is stored, controls the temperature of a battery through proper energy storage/release, further provides collected redundant energy to other use sides, has application ends with heat requirements (such as seat electric heating, steering wheel electric heating and the like), utilizes the working medium circulating system to transfer heat, stores electric energy generated by PVT in a storage battery 5, provides the stored electric energy to the pump 4, a control system 3 and other application ends, fully utilizes the stored energy, realizes energy utilization efficiency maximization, reduces energy waste, and can also utilize the control system 3 to control other modules to realize modular operation by matching with the control system, and simultaneously connects other application ends 6 such as seat heating, in-vehicle air conditioning system, vehicle-mounted refrigerator, air conditioner, electromagnetic oven, parking machine, washing machine, illuminating lamp and the like. The control system 3 can display parameters such as phase-change material temperature, PVT inlet and outlet temperature, working medium flow velocity, battery temperature, PVT generated energy and the like in real time, and can be used for visual display and actual operation in the teaching experiment practice process. The whole equipment is light, simple in structure, stable in performance, low in cost and high in cost performance.
As shown in fig. 2, the PVT module includes a glass cover plate 7, an air layer 8, a heat collecting plate 9, a pipe 10, and an insulating layer 11 arranged from top to bottom, and an outer case 12 is provided outside. Sunlight incident through the glass apron 7 changes the light energy into heat energy, and its inside pipeline 10 runner is laid to the S style of calligraphy (can be for other multiple style of calligraphy forms), and certain working medium flows through pipeline 10 and carries out the thermal-arrest to will collect heat energy transfer to next module, through 11 combined action of heat preservation, effectively guarantee the heat and not run off, fully collect heat energy. Under the condition that the collected heat energy meets the temperature control of the battery, the rest energy stored in the phase-change material energy storage module can be provided for other application ends for use, and according to the requirements of the application ends, for example, the application ends such as water heating can directly use the stored heat energy, the rest types of application ends use electric energy converted from the heat energy, the electric energy is stored in the storage battery, and the electric energy is provided for use under the condition that the application ends have requirements, such as electric equipment (an electric cooker, a vehicle-mounted refrigerator and the like) in daily life in a motor home; the air conditioner in the car is used. When the weather is cold (for example, the average temperature of Tianjin winter spring is-4-7 ℃), the electric power can be supplied to seat heating, air conditioners in vehicles, electric equipment in motor homes and the like, and the power generation range required by the application end is 15-19 kW. When the climate is warm (for example, the average temperature in Tianjin summer and autumn is 23-31 ℃), the heating equipment in the automobile has no power supply requirement, and the power generation required by other application ends 5 is 14-18 kW.
As shown in fig. 3, the phase change material energy storage module 2 is composed of a phase change material 16 and a pipeline a15, the phase change material 16 adopted by the invention has the characteristics of insulation and non-corrosiveness, the pipeline a15 is laid in an S-shaped or other form, the phase change material 16 wraps the whole pipeline a15, a working medium enters from a pipeline inlet a13 and exits from a pipeline outlet a14 until enough heat is stored, and the working medium and the PVT module 1 jointly act to provide heat energy or electric energy for the temperature control requirement of a battery or the requirement of other application ends, so that the energy is efficiently utilized.
As shown in fig. 4, the battery heat absorption and release application structure is arranged in a manner that the battery pack 18 is wrapped by the phase change material 20, the cover plate 17 is provided, meanwhile, the pipeline B19 surrounds the battery pack in an S-shaped or other form, and the uniform temperature of the battery pack is ensured to be heated or cooled through the flow of the working medium from the pipeline inlet B21 to the pipeline outlet B22, so that the working performance of the battery pack is stable, the phase change material absorbs heat at high temperature, the phase change material releases heat at low temperature, and the residual energy can be directly supplied to a user for use or storage, so as to be supplied to other application ends.
As shown in fig. 5, the whole device of the invention is portable, can be used for various vehicle types, can be used for PVT car thermal management device PVT specific placement drawings, and can be placed at different positions of the car, such as a front cover 23, a roof 24, a car rear glass 25, a rear cover 26, a tail wing 27 and the like, but when placed on the rear glass 25, a transparent cover plate, a transparent heat-absorbing coating and the like need to be selected; the phase change material and other accessories can be installed inside the vehicle body, and the overall available space position of the vehicle is effectively utilized.
The energy management working process comprises the following steps:
vehicle-mounted photovoltaic and photothermal integrated energy management device absorbs inexhaustible sunlight as a main energy source, heat in the sunlight is collected by adopting a heat preservation layer 11 for heat preservation, when the PVT module 1 utilizes solar energy to collect heat and heat working medium temperature, the comprehensive effect of the pump 4 and the pipeline 10 is carried out, the control system 3 is matched, the control system 3 can dynamically control the PVT module 1, the phase-change material energy storage module 2 and the pump 4 in real time according to conditions, and therefore the whole system is controlled to control the temperature of an automobile battery. Specifically, when the battery temperature is not in the ideal temperature state, the control system 3 outputs a certain control signal to control the PVT module 1 to be turned on or off, so as to control the working states of the phase-change material energy storage module 2 and the pump 4. Utilize the flow of working medium in the pipeline 10 to carry out thermal transfer utilization, through absorbing the heat of thermal module working medium circulation system, in transmitting heat to phase change material energy storage module 2, utilize phase change material's characteristic, carry out thermal storage, automobile battery needs to carry out temperature control under different temperature environment, carry out temperature control to the battery through suitable energy storage/release, unnecessary energy then utilizes working medium circulation system to transmit, directly provide heat energy for the application end that has the demand, the electric energy can transmit to the battery and store, the electric energy can be used for pump 4, control system 3 and other application ends 6.
At 1m 2 The PVT module is used for example, the power generation is 21-29 kW/day, and the heat collection is 4-6 multiplied by 106J/day. Through experiments and calculation, the heat transfer problem is analyzed according to the radiation quantity capable of being effectively utilized, the PVT heat collector, the working medium circulating system and the heat storage module are designed, the obtained water pipe laying mode is S-shaped, the water quantity in the pipe is 2-3kg, the proportion ratio of the used phase-change material to the water is 1:3, and the temperature of the phase-change material is as follows: 20-30 ℃.
The PVT in the present vehicle-mounted solar photovoltaic/thermal integrated energy management device is specifically placed on a front hood 23, a roof 24, a vehicle rear glass 25, a rear hood 26, a tail wing 27, and the like. However, when the rear glass 25 is placed, a transparent cover plate, a transparent heat absorbing paint, and the like are selected. Space utilization maximization and energy utilization maximization are achieved, and heat management is completed.
The working process is as follows:
stronger solar energy radiation amount 1m in summer 2 When the PVT module is applied, the generated energy can be 25-38 kW/day, the heat collection amount is 6-8X 106J/day, the normal operation of a vehicle can be ensured when the battery temperature is 10-40 ℃, when the battery temperature is higher than 40 ℃, the control system 3 sends a signal, the phase-change material energy storage module 2 and the battery heat absorption and release application structure start to work, and the pump 4 is controlled at the same time, and the flow of a working medium in the pipeline 10 is utilizedThe phase-change material absorbs heat to enable the temperature of the battery to be reduced to a proper value, after the energy collected by the PVT module is used, the redundant energy is transferred to the energy storage module through the working medium circulating system to be stored, and the residual energy is collected to be directly utilized for heat energy utilization so as to supply water for heating; the electric energy obtained by the PVT module is stored by the storage battery, the electric energy stored in the storage battery can provide electric energy for the pump and the control system according to different requirements of application ends, and the electric energy is released when domestic electric equipment (a vehicle-mounted refrigerator, a parking air conditioner, an induction cooker, a kettle, a washing machine and a lighting lamp) in the motor home needs to be used. Wherein the total power range of the application end is 15-19kW, and the power required by heating the seat and the steering wheel ranges from 0.008 to 0.02kW/h; the power required by the air conditioning system in the automobile is 1kW/h; the total power range required by domestic electric equipment in the caravan is 2-3kW/h (wherein the required power of the vehicle-mounted refrigerator system is about 0.02kW/h, the required power of the parking air-conditioning system is about 0.4kW/h, the required power of the induction cooker system is about 0.8kW/h, the required power of the kettle system is about 0.5kW/h, the required power of the washing machine system is about 0.549kW/h, and the required power of the illuminating lamp system is about 0.13 kW/h).
In winter, the solar radiation is weak, and the battery in the automobile is influenced by the temperature environment to cause the abnormal operation of the automobile, so that the automobile can operate by the solar energy control system, and the aim of temperature control is fulfilled. 1m 2 When the PVT module is applied in winter, the generated energy can be 15-20 kW/day, the heat collection amount is 3-4 multiplied by 106J/day, when the temperature of the battery is less than 10 ℃, the control system 3 sends a signal to control the PVT module 1 to start heat collection, the phase-change material energy storage module 2 starts to work, the pump 4 is also controlled at the same time, the flow of the working medium in the pipeline 10 is utilized, the heat is released through the phase-change material, so that the battery is heated to a proper temperature, and the battery temperature is raised by 8-15 ℃ within 1-3min until the battery reaches a stable operation temperature, as shown in a battery heating state diagram (figure 9, figure 10 and figure 11), a PVT water flow channel temperature distribution diagram (figure 12) and a PVT water flow channel pressure distribution diagram (figure 13). The use of the invention effectively improves the problems of unstable running state, serious energy consumption and the like of the vehicle battery caused by the influence of temperature in winter; the thermal management process and the heat storage and release process of the battery can be visually displayed, and the collected corresponding parameters can be used for carrying out system performanceAnd (6) calculating and analyzing.
In transition seasons, 1m is irradiated by solar energy 2 The PVT module is applied, the generated energy is 21-29 kW/day, the heat collection amount is 4-6 multiplied by 106J/day, the normal operation of the vehicle is met when the temperature of the battery is controlled to be 10-40 ℃, the residual excess energy is transmitted to the energy storage module through the working medium circulating system to be stored after the normal operation of the vehicle is ensured, and the stored heat can be used for supplying water for heating; the electric energy generated by PVT is stored by a storage battery, can provide energy for a control system and a pump, and releases electric energy when domestic electric equipment (a vehicle-mounted refrigerator, a parking air conditioner, an induction cooker, a kettle, a washing machine and a lighting lamp) in a motor home needs to be used. The mode greatly improves the utilization rate of energy and can reduce the energy consumption to the minimum.
When the automobile battery needs to reach different temperatures under different environmental conditions, the energy of the corresponding phase-change material energy storage module can be appropriately stored/released to control the temperature of the battery, namely, the vehicle-mounted photovoltaic and photo-thermal integrated energy management is completed, the whole process is displayed on a display platform in a control system, and then students or operators can visually know the management process; the management system can be subjected to performance analysis through data calculation.
Claims (3)
1. The vehicle-mounted solar photovoltaic photo-thermal integrated energy management device is characterized in that a PVT module (1) is taken as a main body, a working medium circulating system consisting of a pump (4) and a pipeline is utilized to transfer heat collected by the PVT module (1) to a phase-change material energy storage module (2) for storage, the temperature of a battery is controlled through energy storage/release of a battery heat absorption and release application structure, collected redundant energy is further provided for other use sides, heat energy is stored in the phase-change material energy storage module (2), the heat energy and electric energy are converted and utilized, the electric energy is stored in a storage battery (5), and then the stored electric energy is provided for the pump (4), a control system (3) and other application ends (6);
the phase-change material energy storage module (2) releases heat to the application end (6) by using a working medium circulating system;
the PVT module (1) comprises a glass cover plate (7), an air layer (8), a heat collection plate (9), a pipeline (10) and a heat preservation layer (11) which are arranged from top to bottom, light energy is converted into heat energy through sunlight incident from the glass cover plate (7), the working medium flows through the pipeline (10) to collect heat, the collected heat energy is transmitted to the next module, and heat preservation is carried out through the heat preservation layer (11);
the control method comprises the following steps:
the phase change material energy storage module (2) is composed of a phase change material (16) and a pipeline A (15), the pipeline A (15) is laid inside the phase change material (16), the phase change material (16) wraps all the pipelines A (15), heat of the pipeline A (15) is continuously absorbed until enough heat is stored, and the phase change material energy storage module and the PVT module (1) jointly act to provide heat energy or electric energy for the temperature control requirement of a battery or the requirements of other application ends, so that the energy is efficiently utilized;
when the temperature of the battery is higher than 40 ℃ in summer, the control system (3) sends a signal, the phase-change material energy storage module (2) and the battery heat absorption and release application structure start to work, and meanwhile, the pump (4) is also controlled, and the heat absorption is carried out through the phase-change material by utilizing the flowing of the working medium in the pipeline (10), so that the temperature of the battery is reduced to be proper;
when the temperature of the battery is lower than 10 ℃ in winter, the control system (3) sends a signal to control the PVT module (1) to start heat collection, the phase-change material energy storage module (2) and the battery heat absorption and release application structure to start working, and simultaneously the pump (4) is also controlled to release heat through the phase-change material by utilizing the flowing of the working medium in the pipeline (10), so that the temperature of the battery is raised to a proper temperature; after the energy collected by the PVT module is used, the redundant energy is transferred to the energy storage module through the working medium circulating system to be stored, and the residual energy is collected to be directly used for heat energy utilization so as to be supplied to an application end; the electric energy obtained by the PVT module is stored by the storage battery, the electric energy stored in the storage battery can provide electric energy for the pump and the control system according to different requirements of application ends, and the electric energy is released when other application ends need to be used;
in transition seasons, the temperature of the battery is controlled to be 10-40 ℃ to meet the normal operation of a vehicle, redundant energy collected by PVT and phase change materials is transmitted to the energy storage module through the working medium circulation system to be stored, and heat energy is directly utilized for an application end; or the electric energy is stored by a storage battery to provide energy for a control system, a pump and other application terminals.
2. The vehicle-mounted solar photovoltaic photo-thermal integrated energy management device according to claim 1, wherein the battery heat absorption and release application structure is arranged in a manner that a phase-change material (20) wraps a battery pack (18), a cover plate (17) is matched, meanwhile, a pipeline B (19) surrounds the battery pack in an S-shaped or other form, and through flowing of a working medium from a pipeline inlet B (21) to a pipeline outlet B (22), the battery pack is heated or cooled uniformly in temperature, so that the working performance of the battery pack is stable, the phase-change material absorbs heat at high temperature, the phase-change material releases heat at low temperature, and residual energy is directly supplied to a user or stored for supplying to other application ends.
3. The vehicle-mounted solar photovoltaic photo-thermal integrated energy management device according to claim 1 or 2, wherein the device is used for various vehicle models, the PVT module (1) can be placed at different positions of the vehicle, such as a front cover (23), a roof (24), a rear glass (25), a rear cover (26) and a tail wing (27), and when the device is placed on the rear glass (25), a transparent cover plate and a transparent heat-absorbing paint are selected; the phase change material (16) and other accessories may be mounted inside the vehicle body.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116544539A (en) * | 2023-06-28 | 2023-08-04 | 河北天乾地坤科技有限公司 | Battery control method and management system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116544539A (en) * | 2023-06-28 | 2023-08-04 | 河北天乾地坤科技有限公司 | Battery control method and management system |
| CN116544539B (en) * | 2023-06-28 | 2023-09-12 | 河北天乾地坤科技有限公司 | Battery control method and management system |
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