CN112140830A - Energy feedback device, vehicle air conditioning system, vehicle and control method - Google Patents
Energy feedback device, vehicle air conditioning system, vehicle and control method Download PDFInfo
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- CN112140830A CN112140830A CN201910578915.3A CN201910578915A CN112140830A CN 112140830 A CN112140830 A CN 112140830A CN 201910578915 A CN201910578915 A CN 201910578915A CN 112140830 A CN112140830 A CN 112140830A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/32—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from a charging set comprising a non-electric prime mover rotating at constant speed
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
- H02N11/002—Generators
Abstract
The invention provides an energy feedback device, a vehicle air conditioning system, a vehicle and a control method, which are applied to the vehicle, wherein the energy feedback device comprises a thermoelectric conversion component and a battery interconnection controller; the thermoelectric conversion assembly comprises a plurality of Seebeck patches and a support frame, and the plurality of Seebeck patches are fixed on the support frame; the support frame is arranged along two sides of a ventilation and heat dissipation device of a vehicle, an output interface of the thermoelectric conversion assembly is electrically connected with an input interface of the battery interconnection controller, a controller output interface of the battery interconnection controller is electrically connected with a power battery and/or electric equipment of the vehicle, wherein the two sides of the ventilation and heat dissipation device are respectively an air inlet side and an air outlet side, and the electric equipment is non-electric heating equipment. The energy feedback device provided by the invention has the advantages of simple structure, simplicity and convenience in manufacturing and installation and lower cost, can store electric energy in the power battery or provide the electric energy for electric equipment, can make up the defect of insufficient electric energy without being interfered by meteorological factors, and realizes feedback utilization of energy.
Description
Technical Field
The invention relates to the technical field of vehicle energy, in particular to an energy feedback device, a vehicle air conditioning system, a vehicle and a control method.
Background
With the consumption of traditional fossil energy and the increasingly prominent environmental protection problem, pure electric vehicles are concerned by various automobile manufacturers due to the advantages of no pollution, low noise and the like under the development of new energy technology.
At present, in a pure electric vehicle, an engine is omitted, and power is derived from a driving motor. For an air conditioning system of an automobile, the waste heat of hot water of an engine cannot be used for heating like a traditional fuel oil vehicle. The heating is usually performed by using a PTC (Positive Temperature Coefficient) device, or by using a heat pump technology to recover the waste heat of the exhaust gas. In order to supplement the consumption of battery energy by the PTC device, a solar panel or the like is usually provided to supply power to the PTC device or to charge the power battery.
However, the existing solar charging device is greatly influenced by meteorological factors and has high requirements on design and manufacture of vehicles, so that the energy efficiency is low and the manufacturing cost is high.
Disclosure of Invention
In view of the above, the present invention is directed to an energy feedback device, a vehicle air conditioning system, a vehicle and a control method, so as to solve the problems of low energy efficiency, high cost and energy waste of the conventional charging device.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
an energy feedback device is applied to a vehicle and comprises a thermoelectric conversion component and a battery interconnection controller;
the thermoelectric conversion assembly includes a plurality of seebeck patches and a support frame, the plurality of seebeck patches being fixed on the support frame;
the supporting frame is along the both sides setting of the ventilation cooling device of vehicle, thermoelectric conversion subassembly's output interface with the input interface electricity of battery interconnection controller is connected, the controller output interface of battery interconnection controller with the power battery of vehicle and/or consumer electricity are connected, wherein, the both sides of ventilation cooling device are air inlet side and air-out side respectively, the consumer is non-electric heat type equipment.
Furthermore, the battery interconnection controller comprises a main control board, wherein an energy management chip, a voltage conversion device and the controller output interface are arranged on the main control board.
Compared with the prior art, the energy feedback device has the following advantages:
the energy feedback device comprises a thermoelectric conversion assembly and a battery interconnection controller, wherein the thermoelectric conversion assembly comprises a plurality of Seebeck patches and a supporting frame, the plurality of Seebeck patches are fixed on the supporting frame, after the supporting frame is arranged on the air inlet side and the air outlet side of a ventilation and heat dissipation device of a vehicle, the Seebeck patches on the supporting frame can generate electric energy based on the Seebeck effect according to the temperature difference between the air inlet side and the air outlet side, and the generated electric energy is transmitted to a power battery or electric equipment through the battery interconnection controller connected with the power battery. The energy feedback device provided by the invention has the advantages of simple structure, simplicity and convenience in manufacturing and installation and lower cost, can be used in vehicles, can be used for generating electricity based on the temperature difference between the air inlet side and the air outlet side of a ventilation and heat dissipation device of the vehicle, stores the electric energy in a power battery or provides the electric energy for electric equipment, can make up the defect of insufficient electric energy without being interfered by meteorological factors, and realizes feedback utilization of energy.
Another object of the present invention is to provide a vehicle air conditioning system to compensate for the consumption of electric energy by the air conditioner in the heating mode.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the vehicle air conditioning system comprises an outdoor heat exchanger and the energy feedback device;
the outdoor heat exchanger is arranged in an engine compartment of the vehicle;
the supporting frame extends from the air inlet side to the air outlet side of the outdoor heat exchanger.
Further, the support frame is arranged on the top of the outdoor heat exchanger, and the top is one side of the outdoor heat exchanger, which is far away from the chassis along the height direction of the vehicle.
Further, the gaps between the plurality of seebeck patches are equal.
Further, the coincidence distance between the seebeck patch and the outdoor heat exchanger is smaller than a first flow of the outdoor heat exchanger, wherein the coincidence distance is the distance along the height direction of the vehicle, and the first flow is the distance along the height direction of the vehicle at the gaseous heat dissipation section of the outdoor heat exchanger.
Further, the vehicle air conditioning system is a heat pump air conditioning system.
Another objective of the present invention is to provide a vehicle to reduce the power consumption of the vehicle power battery and improve the cruising ability of the vehicle.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the vehicle comprises the vehicle air conditioning system.
Compared with the prior art, the vehicle air conditioning system, the vehicle and the energy feedback device have the same advantages, and the detailed description is omitted.
Another objective of the present invention is to provide a control method of an energy feedback device, so as to determine different energy feedback strategies according to the temperature difference, thereby implementing a fine management of thermoelectric conversion.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a control method of an energy feedback device is used for the energy feedback device and comprises the following steps:
monitoring the temperature difference of two sides of the ventilation and heat dissipation device;
determining an energy feedback strategy according to the corresponding relation between the temperature difference and a preset temperature;
controlling feedback transmission of energy based on the energy feedback strategy.
Further, the determining an energy feedback strategy according to the corresponding relationship between the temperature difference and the preset temperature includes:
when the temperature difference is less than or equal to a first preset temperature or the temperature difference is greater than a second preset temperature, the electric energy generated by the Seebeck patch is transmitted to a power battery of the vehicle for storage;
when the temperature difference is greater than a first preset temperature and less than or equal to a second preset temperature, the electric energy generated by the Seebeck patch is transmitted to electric equipment of the vehicle for energy supply.
The control method of the energy feedback device can monitor the temperature difference of the two sides of the ventilation and heat dissipation device, the corresponding relation can be established between different temperature differences and different preset temperatures, and different energy feedback strategies can be adopted according to the corresponding relation, so that the fine management of the process of converting heat energy into electric energy can be realized, the waste or insufficient power supply of the electric energy is avoided, and the thermoelectric conversion efficiency is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic diagram of an energy feedback device according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating an installation of an energy feedback device according to an embodiment of the invention;
FIG. 3 is a schematic diagram of a vehicle air conditioning system according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a control method of an energy feedback device according to an embodiment of the invention.
Description of reference numerals:
10-thermoelectric conversion component, 11-battery interconnection controller, 12-power battery, 13-electric equipment, 14-outdoor heat exchanger, 15-compressor, 16-indoor heat exchanger, 101-Seebeck patch and 102-support frame.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example one
Referring to fig. 1 and 2, an embodiment of the present invention provides an energy feedback device applied to a vehicle, the energy feedback device including a thermoelectric conversion assembly 10 and a battery interconnection controller 11;
the thermoelectric conversion module 10 includes a plurality of seebeck patches 101 and a support frame 102, the plurality of seebeck patches 101 being fixed to the support frame 102;
the support frame 102 is along the both sides setting of the ventilation cooling device of vehicle, thermoelectric conversion subassembly 10's output interface with the input interface electricity of battery interconnection controller 11 is connected, the controller output interface of battery interconnection controller 11 with the power battery 12 and/or the consumer 13 electricity of vehicle are connected, wherein, the both sides of ventilation cooling device are air inlet side and air-out side respectively, the consumer is non-electric heat type equipment.
Specifically, as shown in fig. 1 and 2, the embodiment of the invention provides an energy feedback device applied to a vehicle, and the energy feedback device includes a thermoelectric conversion assembly 10 and a battery interconnection controller 11. The thermoelectric conversion module 10 includes a plurality of seebeck patches 101 and a support frame 102, the seebeck patches 101 being a patch material having the seebeck effect. The seebeck effect, also called the first thermoelectric effect, refers to a thermoelectric phenomenon in which a voltage difference between two substances is caused by a difference in temperature between two different electrical conductors or semiconductors. The selected material with the Seebeck effect can be ternary solid solution alloy taking bismuth telluride as a matrix, P type: (70% -75%) Sb2Te325% -30% (molecular) Bi2Te3+ P type impurities; and (2) N type: (90% -93%) (molecularbi2Te3+ (7% -10%) (molecule) Bi2Se3+ N type impurity. Will utensilThe material with the Seebeck effect is processed into a sheet structure and can be attached and fixed on the supporting frame 102, when the supporting frame 102 is arranged along the two sides of the air inlet side and the air outlet side of a ventilation and heat dissipation device of a vehicle, cold air and hot air on the two sides of the ventilation and heat dissipation device can form a temperature field to generate temperature difference, the Seebeck patch 101 can feel the temperature difference, and therefore potential difference is generated on the Seebeck patch 101 based on the Seebeck effect to generate electric energy. It is understood that the ventilation and heat dissipation device can be a device located at different positions in the vehicle, such as a heat exchanger of an air conditioning system, a heat dissipation structure at a hub position, and the like, and the embodiment is not limited thereto.
Because the stability of the electric energy generated by the seebeck patch 101 is poor and the electric energy is not suitable for being directly supplied to electric equipment, the output interface of the thermoelectric conversion assembly 10 is electrically connected with the input interface of the battery interconnection controller 11, the electric energy generated by the seebeck patch 101 can be transmitted to the battery interconnection controller 11, the battery interconnection controller 11 is used as a power management module for thermoelectric generation, the power management module comprises a power management circuit designed based on the super capacitor idea and the like, and the voltage and the current generated by the temperature difference can be regulated to be stable. The regulated electric energy can be transmitted to the power battery 12 through the controller output interface of the battery interconnection controller 11 to be stored or provided to the electric equipment 13 for use. Certainly, in view of the technical bottleneck in the prior art, thermoelectric power generation is not enough to provide a large amount of electric energy, therefore, if the output electric energy is provided to the electric equipment 13, it is preferentially provided to the non-electric heating type equipment, which refers to equipment whose energy conversion form is not mainly converted from electric energy to heat energy, for example, a compressor (electric energy is mainly converted into mechanical energy), an indicator light (electric energy is mainly converted into light energy), a speaker or a loudspeaker (electric energy is mainly converted into mechanical energy of vibration of a diaphragm), such non-electric heating type equipment usually consumes less power unlike PTC devices, and its power consumption is less, and the pressure of thermoelectric power generation is less, so that it is easier to meet the use requirement.
The energy feedback device comprises a thermoelectric conversion assembly and a battery interconnection controller, wherein the thermoelectric conversion assembly comprises a plurality of Seebeck patches and a supporting frame, the plurality of Seebeck patches are fixed on the supporting frame, after the supporting frame is arranged on the air inlet side and the air outlet side of a ventilation and heat dissipation device of a vehicle, the Seebeck patches on the supporting frame can generate electric energy based on the Seebeck effect according to the temperature difference between the air inlet side and the air outlet side, and the generated electric energy is transmitted to a power battery or electric equipment through the battery interconnection controller connected with the power battery. The energy feedback device provided by the invention has the advantages of simple structure, simplicity and convenience in manufacturing and installation and lower cost, can be used in vehicles, can be used for generating electricity based on the temperature difference between the air inlet side and the air outlet side of a ventilation and heat dissipation device of the vehicle, stores the electric energy in a power battery or provides the electric energy for electric equipment, can make up the defect of insufficient electric energy without being interfered by meteorological factors, and realizes feedback utilization of energy.
Further, the battery interconnection controller 11 includes a main control board, and an energy management chip, a voltage conversion device and the controller output interface are disposed on the main control board.
Specifically, the battery interconnection controller 11 is used as a controller for the electric energy generated by the seebeck patch 101, and includes a main control board, on which a corresponding management control circuit is disposed, and a core electronic component in the circuit may be an energy management chip, and the energy management chip may be connected to a control system of a vehicle, receive a control signal from the vehicle, and perform management control on the electric energy generated by the seebeck patch 101. The voltage conversion device on the main control board can be used for performing voltage stabilization conversion processing on the electric energy generated by the seebeck patch 101, so that working voltage matched with rated voltage of the electric equipment can be obtained, and the working voltage is output to the power battery 12 or the electric equipment 13 through a controller output interface on the main board.
Example two
Referring to fig. 3, an embodiment of the present invention provides a vehicle air conditioning system, which includes an outdoor heat exchanger 14 and the energy feedback device according to the first embodiment;
the outdoor heat exchanger 14 is disposed in an engine compartment of the vehicle;
the support frame 102 extends from the air inlet side to the air outlet side of the outdoor heat exchanger 14.
Specifically, as shown in fig. 3, a schematic diagram of a vehicle air conditioning system provided in an embodiment of the present invention is shown, in which an outdoor heat exchanger 14 is included in an engine compartment of a vehicle, and when a refrigerant entering the outdoor heat exchanger 14 comes from a compressor 15, the outdoor heat exchanger 14 functions as a condenser, converts a gaseous refrigerant at a high temperature and a high pressure into a liquid refrigerant at a high temperature and a high pressure, dissipates heat, and raises an ambient temperature. When the refrigerant entering the outdoor heat exchanger 14 comes from the indoor heat exchanger 16, the indoor heat exchanger 16 is located in the vehicle cabin, and at this time, the outdoor heat exchanger 14 functions as an evaporator to convert the low-temperature and low-pressure liquid refrigerant into the low-temperature and low-pressure gaseous refrigerant, thereby absorbing the ambient heat and reducing the ambient temperature.
The supporting frame 102 extends from the air inlet side of the outdoor heat exchanger 14 to the air outlet side, the air inlet side of the outdoor heat exchanger 14 is the side close to the vehicle grille, the air inlet side is the side on which cold air is directly blown, and the air outlet side of the outdoor heat exchanger 14 is the side far from the vehicle grille, that is, the cold air is blown in from the air inlet side, passes through the heat exchange fins of the outdoor heat exchanger 14, and is blown out from the air outlet side. When the outdoor heat exchanger 14 functions as a condenser, the temperature of the cold air is increased by the outdoor heat exchanger 14 after the cold air enters, and the cold air is blown out from the air outlet side. Thereby generating a temperature difference between the air intake side and the air discharge side of the outdoor heat exchanger 14. Since the seebeck patch 101 is provided on the support frame 102 in the energy feedback device, power generation can be performed based on the temperature difference between both sides of the outdoor heat exchanger 14.
The vehicle air conditioning system comprises the outdoor heat exchanger and the energy feedback device, and the thermoelectric conversion assembly in the energy feedback device is combined with the outdoor heat exchanger for use, so that heat energy can be recycled when a refrigerant in the outdoor heat exchanger dissipates heat, and the energy and the electricity of the vehicle air conditioner are saved by means of the temperature difference between the two sides of the outdoor heat exchanger for power generation. The energy feedback device is simple in structure, simple and convenient to manufacture and install, low in cost when used in a vehicle air conditioning system, and capable of storing electric energy in a power battery or providing the electric energy for electric equipment based on temperature difference power generation of the air inlet side and the air outlet side of the outdoor heat exchanger, overcoming the defect of insufficient electric energy without interference of meteorological factors and achieving feedback utilization of energy.
Further, referring to fig. 3, the support frame 102 is disposed on a top portion of the outdoor heat exchanger 14, the top portion being a side of the outdoor heat exchanger 14 away from the chassis in a height direction of the vehicle.
Specifically, as shown in fig. 3, generally, the inlet of the refrigerant in the outdoor heat exchanger 14 is disposed at the top, i.e., the side of the outdoor heat exchanger 14 away from the chassis in the height direction of the vehicle, so that when the refrigerant enters from the inlet, the refrigerant flows downward under the action of gravity to exchange heat with the external environment. Accordingly, the supporting frame 102 is disposed on the top of the outdoor heat exchanger 14, which is beneficial to maintain a high temperature difference and improve the efficiency of thermoelectric conversion.
Further, referring to fig. 2, the gaps between the plurality of seebeck patches 101 are equal.
Specifically, as shown in fig. 2, the plurality of seebeck patches 101 are arranged on the support frame 102 at intervals, and the gaps between every two adjacent seebeck patches 101 are equal, so that the balance of the air volume entering from the middle net is facilitated, the balance of the wind speed is facilitated, the defect of unstable power generation of the seebeck patches 101 due to uneven air volume and wind speed can be avoided, the stability of power generation can be improved, and the heat exchange capability of the outdoor heat exchanger is also ensured.
Further, referring to fig. 1, the overlapping distance between the seebeck patch 101 and the outdoor heat exchanger 14 is smaller than the first process of the outdoor heat exchanger 14, wherein the overlapping distance is the distance along the height direction of the vehicle, and the first process is the distance along the height direction of the vehicle of the gaseous heat radiation section of the outdoor heat exchanger 14.
Specifically, as shown in fig. 1, in order to ensure normal heat exchange performance of the outdoor heat exchanger 14, the overlapping distance of the seebeck patch 101 and the outdoor heat exchanger 14 is smaller than the first flow of the outdoor heat exchanger 14. When the outdoor heat exchanger 14 functions as a condenser, the refrigerant is gradually changed from a gas state to a liquid state in the condenser, and in the changing process, the refrigerant comprises a first flow of a gas-state heat dissipation section, a second flow of a gas-liquid mixed state heat dissipation section and a third flow of a liquid-state supercooling section. Therefore, in order to ensure effective heat exchange between the refrigerant and the external environment, the overlapping distance between the seebeck patch 101 and the outdoor heat exchanger 14 is smaller than the first flow of the outdoor heat exchanger 14, that is, the lowest edge of the seebeck patch 101, which can extend in the height direction of the vehicle, is the end position of the gaseous heat dissipation section of the outdoor heat exchanger 14, so that the seebeck patch 101 is prevented from being too long to prevent the outdoor heat exchanger 14 from exchanging heat with the external environment in the second flow and the third flow.
Further, referring to fig. 3, the vehicle air conditioning system is a heat pump air conditioning system.
Specifically, as shown in fig. 3, a schematic diagram of the vehicle air conditioning system as a heat pump air conditioning system is given, and it can be known to those skilled in the art that, in the heat pump air conditioning system, the flow direction of the refrigerant may be according to a flow direction one: the refrigerant flows from the compressor 15 to the outdoor heat exchanger 14, then to the indoor heat exchanger 16, and then back to the compressor 14, and when circulating in a flow direction, the refrigerant absorbs heat in the indoor heat exchanger 16 to lower the ambient temperature, and at this time, the refrigeration effect is achieved. The flow direction of the refrigerant can be according to flow direction two: the refrigerant flows from the compressor 15 to the indoor heat exchanger 16, then to the outdoor heat exchanger 14, and then back to the compressor 15, and when the refrigerant circulates in the second flow direction, the refrigerant releases heat in the indoor heat exchanger 16 to raise the ambient temperature, and at this time, the heating effect is achieved, so that the refrigerant is preferentially used for heat release for heating, and the electric energy consumption is not needed. In the embodiment of the present invention, when the vehicle air conditioning system is the heat pump air conditioning system, when the refrigerant circulates in a flow direction, the refrigerant releases heat in the outdoor heat exchanger 14, so that the temperature of the air outlet side of the outdoor heat exchanger 14 is raised, the temperature difference between the air inlet side and the air outlet side is increased, and power can be generated by using the heat dissipated by the refrigerant in the outdoor heat exchanger 14. When the refrigerant circulates in two directions, the air conditioning system heats normally in the cab. It is understood that air conditioning systems based on heat pump technology have been widely used, and redundant descriptions about valves, filters, etc. in heat pump air conditioning systems are omitted.
On the basis of the energy feedback device, the vehicle air conditioning system limits the installation position of the supporting frame and the gap and the length of the Seebeck patch, thereby realizing energy feedback utilization, being beneficial to improving thermoelectric conversion efficiency and ensuring the normal work of the outdoor heat exchanger.
EXAMPLE III
The embodiment of the invention provides a vehicle which comprises the vehicle air conditioning system of the second embodiment.
Specifically, the vehicle air conditioning system can be adopted in the vehicle provided by the embodiment of the invention, and by applying the vehicle air conditioning system, the heat energy emitted by the outdoor heat exchanger of the air conditioner can be recycled, the consumption of the air conditioner on the electric energy is compensated by utilizing the temperature difference for power generation, the electric energy of a power battery can be saved, and the cruising ability of the vehicle is favorably improved.
Example four
Referring to fig. 4, a flowchart of a control method of an energy feedback device according to an embodiment of the present invention is shown, where the control method is used for the energy feedback device according to the first embodiment, and the control method includes:
and S101, monitoring the temperature difference of two sides of the ventilation and heat dissipation device.
Specifically, when the energy feedback device in the embodiment of the invention is applied to a vehicle, the temperature difference between the two sides of the air inlet side and the air outlet side of the ventilation and heat dissipation device can be monitored by using sensors, for example, by providing temperature sensors on the air inlet side and the air outlet side respectively, the temperature of the air inlet side and the air outlet side can be obtained, and the temperature difference between the two sides can be obtained through calculation. It can be understood that, in order to obtain accurate temperature difference data, a plurality of groups of temperature sensors can be arranged to obtain a plurality of temperature difference data, and an average value is calculated as a final temperature difference.
And S102, determining an energy feedback strategy according to the corresponding relation between the temperature difference and the preset temperature.
Specifically, the power generation efficiency of different temperature differences can be summarized according to research data of a laboratory, so that different energy feedback strategies can be set for different temperature differences, for example, when the power generation efficiency is low, feedback energy storage is preferentially selected, and when the power generation efficiency is high, electric energy is directly used. Specifically, preset temperature data may be stored in a memory of the vehicle, the temperature difference may be compared with the preset temperature, and when the temperature difference and the preset temperature satisfy a corresponding magnitude relationship, an energy feedback strategy matched therewith may be determined.
The control method of the energy feedback device can monitor the temperature difference of the two sides of the ventilation and heat dissipation device, the corresponding relation can be established between different temperature differences and different preset temperatures, and different energy feedback strategies can be adopted according to the corresponding relation, so that the fine management of the process of converting heat energy into electric energy can be realized, the waste or insufficient power supply of the electric energy is avoided, and the thermoelectric conversion efficiency is improved.
And S103, controlling feedback transmission of energy based on the energy feedback strategy.
Specifically, the generated electric energy is transmitted to the power battery or the electric equipment by selecting the corresponding transmission path according to the corresponding energy feedback strategy.
The step S102 may specifically include the following technical solutions:
when the temperature difference is less than or equal to a first preset temperature or greater than a second preset temperature, the electric energy generated by the Seebeck patch is transmitted to a power battery of the vehicle for storage;
when the temperature difference between the two sides of the ventilation and heat dissipation device is small, the power generation efficiency of the ventilation and heat dissipation device is considered to be low, the generated electric energy is not enough for normal work of electric equipment, or when the temperature difference is large, the power generation efficiency is considered to be high, and the generated electric energy has surplus. In order to accurately select an energy feedback strategy, a first preset temperature and a second preset temperature can be set as two reference values, and when the temperature difference is smaller than or equal to the first preset temperature or larger than the second preset temperature, the generated electric energy is transmitted to a power battery of a vehicle for storage, so that waste caused by the fact that electric equipment cannot normally work due to insufficient electric energy or the electric energy is excessive is avoided.
And step two, when the temperature difference is greater than the first preset temperature and less than or equal to a second preset temperature, the electric energy generated by the Seebeck patch is transmitted to electric equipment of the vehicle for energy supply.
When the difference in temperature of ventilation cooling device both sides was between above-mentioned first preset temperature and the second preset temperature, when the difference in temperature was greater than first preset temperature and the second preset temperature, can think that the electric energy that the seebeck paster produced can maintain the normal work of consumer this moment, can not produce extravagant phenomenon again simultaneously promptly, at this moment, can directly carry the energy supply in the consumer of vehicle with the electric energy, need not the storage. Of course, in practical implementation, since the second preset temperature is greater than the first preset temperature, when the temperature difference is equal to the second preset temperature, that is, the temperature difference is large, it can be considered that stable electric energy can be generated, and surplus may be generated, so that the electric energy generated by the seebeck patch can be transmitted to the power battery of the vehicle for storage.
Illustratively, when the temperature difference is less than or equal to 5 ℃ or greater than 20 ℃, the electric energy generated by the Seebeck patch is transmitted to the power battery for storage; when the temperature difference is greater than 5 ℃ and less than or equal to 20 ℃, the electric energy generated by the Seebeck patch is supplied to the electric equipment. It is to be understood that the first preset temperature and the second preset temperature can be set by a technician according to different seebeck patch materials, different gaps between the plurality of seebeck patches, different mounting positions of the support frame, and the like.
The control method of the energy feedback device can realize the fine management of the process of converting heat energy into electric energy, avoid the waste or insufficient power supply of the electric energy, contribute to improving the thermoelectric conversion efficiency, flexibly adjust decision conditions according to the corresponding energy feedback device and have wide application range.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. An energy feedback device is applied to a vehicle and is characterized by comprising a thermoelectric conversion assembly and a battery interconnection controller;
the thermoelectric conversion assembly includes a plurality of seebeck patches and a support frame, the plurality of seebeck patches being fixed on the support frame;
the supporting frame is along the both sides setting of the ventilation cooling device of vehicle, thermoelectric conversion subassembly's output interface with the input interface electricity of battery interconnection controller is connected, the controller output interface of battery interconnection controller with the power battery of vehicle and/or consumer electricity are connected, wherein, the both sides of ventilation cooling device are air inlet side and air-out side respectively, the consumer is non-electric heat type equipment.
2. The energy feedback device of claim 1,
the battery interconnection controller comprises a main control board, wherein an energy management chip, a voltage conversion device and a controller output interface are arranged on the main control board.
3. A vehicle air conditioning system, characterized in that the vehicle air conditioning system comprises an outdoor heat exchanger and the energy feedback device of any one of claims 1 to 2;
the outdoor heat exchanger is arranged in an engine compartment of the vehicle;
the supporting frame extends from the air inlet side to the air outlet side of the outdoor heat exchanger.
4. A vehicle air conditioning system according to claim 3,
the supporting frame is arranged on the top of the outdoor heat exchanger, and the top is one side of the outdoor heat exchanger, which is far away from the chassis along the height direction of the vehicle.
5. A vehicle air conditioning system according to claim 3,
the gaps between the plurality of seebeck patches are equal.
6. A vehicle air conditioning system according to claim 3,
the superposition distance between the Seebeck patch and the outdoor heat exchanger is smaller than a first process of the outdoor heat exchanger, wherein the superposition distance is the distance along the height direction of the vehicle, and the first process is the distance of the outdoor heat exchanger along the height direction of the vehicle at the gaseous heat dissipation section.
7. A vehicle air conditioning system according to claim 3,
the vehicle air conditioning system is a heat pump air conditioning system.
8. A vehicle characterized in that it comprises a vehicle air conditioning system according to any one of claims 3 to 7.
9. A control method of an energy feedback device, the control method being used for the energy feedback device according to claim 1 or 2, the control method comprising:
monitoring the temperature difference of two sides of the ventilation and heat dissipation device;
determining an energy feedback strategy according to the corresponding relation between the temperature difference and a preset temperature;
controlling feedback transmission of energy based on the energy feedback strategy.
10. The control method of claim 9, wherein determining an energy feedback strategy according to the correspondence between the temperature difference and a predetermined temperature comprises:
when the temperature difference is less than or equal to a first preset temperature or the temperature difference is greater than a second preset temperature, the electric energy generated by the Seebeck patch is transmitted to a power battery of the vehicle for storage;
when the temperature difference is greater than a first preset temperature and less than or equal to a second preset temperature, the electric energy generated by the Seebeck patch is transmitted to electric equipment of the vehicle for energy supply.
Priority Applications (1)
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| CN112140830B (en) | 2022-03-29 |
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