CN208767996U - Automobile-used thermo-electric generation system and vehicle with the automobile-used thermo-electric generation system - Google Patents
Automobile-used thermo-electric generation system and vehicle with the automobile-used thermo-electric generation system Download PDFInfo
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- CN208767996U CN208767996U CN201821373251.4U CN201821373251U CN208767996U CN 208767996 U CN208767996 U CN 208767996U CN 201821373251 U CN201821373251 U CN 201821373251U CN 208767996 U CN208767996 U CN 208767996U
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- 238000001816 cooling Methods 0.000 claims abstract description 133
- 238000010248 power generation Methods 0.000 claims description 40
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- 238000007726 management method Methods 0.000 description 9
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- 239000000853 adhesive Substances 0.000 description 6
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- 239000000463 material Substances 0.000 description 6
- 238000004378 air conditioning Methods 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
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- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000011217 control strategy Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
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- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
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Abstract
This application involves a kind of automobile-used thermo-electric generation systems, it include: thermoelectric generator, including hot end face and cold end face, the thermoelectric generator is contacted by the hot end face with bodyshell, to heat the hot end face by the temperature of the bodyshell, the thermoelectric generator is contacted by the cold end face with interior cooling circuit, to pass through the cooling cold end face of the cooling circuit.Electrical appliance is electrically connected with the thermoelectric generator, and the electric energy for generating the thermoelectric generator is converted into the energy of other forms.Further relate to a kind of vehicle with the automobile-used thermo-electric generation system.Above-mentioned automobile-used thermo-electric generation system and the vehicle with the automobile-used thermo-electric generation system contact with interior cooling circuit by contacting the hot end face of thermoelectric generator with bodyshell, and by the cold end face of thermoelectric generator, realize thermo-electric generation function on vehicle.
Description
Technical Field
The application relates to the technical field of vehicles, in particular to a vehicle thermoelectric power generation system.
Background
With the development of electric automobiles, the driving range is one of the main factors restricting the development of the electric automobiles, and particularly, under high-temperature weather, the driving range of the electric automobiles is greatly shortened due to energy loss caused by an in-vehicle cooling system. At present, a photovoltaic power generation technology or a temperature difference power generation technology can be adopted to bring extra energy sources for the electric automobile in high-temperature weather, so that the endurance mileage of the electric automobile is improved. The thermoelectric power generation technology is a technology for generating electric energy by utilizing the temperature difference between high-temperature and low-temperature heat sources, but the power generation efficiency of the conventional thermoelectric power generation device on the vehicle is low.
SUMMERY OF THE UTILITY MODEL
This application aims at improving on-vehicle thermoelectric generation device's generating efficiency. To this end, an object of the present application is to propose a highly efficient thermoelectric generation system for a vehicle and a vehicle including the thermoelectric generation system for a vehicle.
A thermoelectric generation system for a vehicle, comprising:
the thermoelectric generator comprises a hot end face and a cold end face, the thermoelectric generator is in contact with the body shell through the hot end face so as to heat the hot end face through the temperature of the body shell, and the thermoelectric generator is in contact with a cooling loop in the vehicle through the cold end face so as to cool the cold end face through the cooling loop;
and the electrical appliance is electrically connected with the thermoelectric generator and is used for converting the electric energy generated by the thermoelectric generator into energy in other forms.
In one embodiment, the electrical appliance comprises at least one of a circulation pump, an air conditioning compressor, and an on-board lighting appliance: wherein,
and the circulating pump is arranged in the cooling loop and used for converting the electric energy generated by the thermoelectric generator into mechanical energy to drive the coolant in the cooling loop to circulate.
In one embodiment, the cooling circuit comprises at least one of a power battery cooling circuit, an air conditioner cooling circuit, an electric machine cooling circuit, an electronic control cooling circuit and an engine cooling circuit.
In one embodiment, the method further comprises the following steps:
and the first switch is connected between the thermoelectric generator and the electrical appliance in series and is used for controlling the electrical connection of the thermoelectric generator and the electrical appliance.
In one embodiment, the method further comprises the following steps:
and the storage battery is electrically connected with the thermoelectric generator and is used for storing the electric energy generated by the thermoelectric generator.
And the second switch is connected between the thermoelectric generator and the storage battery in series and is used for controlling the electric connection of the thermoelectric generator and the storage battery.
And one end of the anti-reverse charging diode is electrically connected with the thermoelectric generator, and the other end of the anti-reverse charging diode is electrically connected with the storage battery and is used for preventing the storage battery from reversely charging the thermoelectric generator.
In one embodiment, the method further comprises the following steps: and the heat-conducting glue is arranged between the hot end face and the vehicle body shell or between the cold end face and the cooling loop.
In one embodiment, the body shell includes a roof and a side wall; the thermoelectric generator is in contact with at least one of the car roof and the side wall of the vehicle through the hot end face so as to heat the hot end face through the temperature of the car roof or the side wall of the vehicle.
In one embodiment, a voltage boosting module and a voltage stabilizing module are further connected in series between the thermoelectric generator and the electrical appliance, and electric energy generated by the thermoelectric generator is firstly boosted by the voltage boosting module, then is stabilized by the voltage stabilizing module and then is transmitted to the electrical appliance.
In one embodiment, the cooling circuit comprises a power battery cooling circuit disposed on the headliner interior surface.
A vehicle includes a thermoelectric generation system for the vehicle.
According to the vehicle thermoelectric power generation system and the vehicle with the same, the hot end face of the thermoelectric generator is in contact with the body shell, and the cold end face of the thermoelectric generator is in contact with the cooling loop in the vehicle, so that the function of vehicle thermoelectric power generation is achieved.
Drawings
FIG. 1 is a schematic structural diagram of a thermoelectric power generation system for a vehicle according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural diagram of a thermoelectric power generation system with a water pump for a vehicle according to an embodiment of the present disclosure;
FIG. 3 is a schematic structural diagram of a thermoelectric power generation system for a vehicle according to another embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a thermoelectric power generation system for a vehicle according to still another embodiment of the present application.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.
It will be understood that the terms "first," "second," and the like as used herein may be used herein to describe various switches, but these switches are not limited by these terms. These terms are only used to distinguish one element from another. For example, a first switch may be referred to as a second switch, and similarly, a second switch may be referred to as a first switch, without departing from the scope of the present application. The first switch and the second switch are both speakers, but they are not the same switch.
Fig. 1 is a schematic structural diagram of a thermoelectric power generation system for a vehicle according to an embodiment of the present application. As shown in fig. 1, a thermoelectric generation system for a vehicle includes:
a thermoelectric generator 120 including a hot end surface 122 and a cold end surface 124, the thermoelectric generator 120 being in contact with the body housing 140 through the hot end surface 122 to heat the hot end surface 122 by the temperature of the body housing 140, the thermoelectric generator 120 being in contact with a cooling circuit 160 in the vehicle through the cold end surface 124 to cool the cold end surface by the cooling circuit 160;
and the electrical appliance 130 is electrically connected with the thermoelectric generator 120 and is used for converting the electric energy generated by the thermoelectric generator 120 into other forms of energy.
Among them, the thermoelectric generator 120 may include a plurality of thermoelectric generation chips connected in series or in parallel with each other, and the thermoelectric generator 120 mainly generates electricity using a temperature difference between the body case 140 and the coolant 160. The hot end surface 122 of the thermoelectric generator 120 is in contact with the body shell 140, and the contact manner is not limited as long as a good heat conduction effect between the body shell 140 and the hot end surface 122 can be ensured. For example, the contact may be direct contact or indirect contact. If the direct contact is adopted, the hot end surface 122 of the thermoelectric generator 120 can be directly attached to the surface of the body shell 140; if the thermoelectric generator 120 is indirectly contacted with the hot end surface 122, the hot end surface 122 of the thermoelectric generator 120 may be bonded to the iron sheet of the body shell 140 by a heat-conducting adhesive (not shown), so as to ensure good heat-conducting performance between the body shell 140 and the hot end surface 122.
The cold end surface 124 of the thermoelectric generator 120 is in contact with the cooling circuit 160, and the cooling circuit 160 in fig. 1 is only partially shown, and the structures of the heat exchanger, the circulation pump, and the like in the cooling circuit are not shown. The coolant within the cooling circuit 160 typically flows within tubes or cooling plates. The contact between the cold end surface 124 and the cooling circuit 160 is not limited as long as a good heat conduction effect can be ensured. For example, the cold end 124 of the thermoelectric generator 120 can be directly attached to the surface of the cooling circuit 160, or the cold end 124 of the thermoelectric generator 120 can be directly attached to the surface of the cooling circuit 160. Further, the cold end surface 124 of the thermoelectric generator 120 may be bonded to the pipe wall of the cooling circuit 160 by a heat conductive adhesive, or the cold end surface 124 may be bonded to the cooling plate of the cooling circuit 160 by a heat conductive adhesive. The cooling circuit 160 may be any cooling circuit on the vehicle, and the cooling circuit may include a power battery cooling circuit, an air conditioner cooling circuit, a motor cooling circuit, and the like. If the cooling circuit 160 channels exit the thermoelectric generation panel surface and are serpentine shaped, the cooling circuit 160 may exchange heat with the cold end face 124 via the channel surface. If the cooling circuit 160 includes a cooling plate, the cooling circuit 160 exchanges heat with the cold end face 124 through the cooling plate. The cold plate may be a flexible material that conforms to the cold end 124 of the thermoelectric generator 120.
The electrical appliance 130 may include any electrical appliance on the vehicle, such as an air conditioner compressor, a water pump, a vehicle battery, a lighting system, and the like.
For example, in hot weather in summer, the body shell 140 is exposed to the sun, the temperature of the body shell 140 can be as high as 70 ℃ to 80 ℃, the temperature can be transferred to the hot end surface 122 through contact, the temperature of the coolant in the power battery cooling loop can be as low as 15 ℃ to 25 ℃, the temperature can be transferred to the cold end surface 124 through contact, the temperature difference between the cold end surface 124 and the hot end surface 122 is large, and the thermoelectric generator 120 has high power generation efficiency.
In the thermoelectric power generation system for a vehicle in this embodiment, the hot end surface 122 of the thermoelectric generator 120 is in contact with the body case 140, and the cold end surface 124 of the thermoelectric generator 120 is in contact with the cooling circuit 160 in the vehicle, so that the thermoelectric power generation function on the vehicle is realized.
Furthermore, the cold end surface 124 of the thermoelectric generator 120 may also contact air in the vehicle, and the thermoelectric generation function may also be achieved, and it should be noted that, compared with the cooling end surface by cooling the air in the vehicle, the temperature difference between the hot end surface 122 and the cold end surface 124 may be enlarged by contacting the cold end surface 124 with the in-vehicle cooling circuit 160 and cooling the cold end surface by cooling the cooling circuit 160, so as to improve the power generation efficiency of the thermoelectric generation system for the vehicle.
In one embodiment, further comprising: the heat conductive adhesive (not shown) is disposed between the hot end surface 122 and the body shell 140, or between the cold end surface 124 and the cooling circuit 160.
Further, the cold end surface 124 of the thermoelectric generator 120 may be bonded to the pipeline wall of the cooling circuit 160 by a heat conductive adhesive, or the cold end surface 124 may be bonded to the cooling plate of the cooling circuit 160 by a heat conductive adhesive.
In the thermoelectric power generation system for a vehicle in this embodiment, the heat-conducting glue is selectively disposed between the hot end surface 122 and the vehicle body shell 140, or disposed between the cold end surface 124 and the cooling circuit 160, so that the good heat-conducting effect of the objects (the hot end surface 122 and the vehicle body shell 140, or the cold end surface 124 and the cooling circuit 160) on both sides of the heat-conducting glue is ensured, and the objects on both sides can be bonded together through the heat-conducting glue.
Fig. 2 is a schematic structural diagram of a thermoelectric power generation system with a circulation pump for a vehicle in an embodiment of the present application. As shown in fig. 2, the electrical appliance includes at least one of a circulation pump 132, an air conditioner compressor (not shown), and an on-vehicle lighting appliance (not shown). The circulation pump 132 is disposed in the cooling circuit 160, and is configured to convert the electrical energy generated by the thermoelectric generator 120 into mechanical energy to drive the coolant in the cooling circuit 160 to circulate.
If the cooling circuit 160 is a power battery cooling circuit, the cooling circuit 160 may include a circulation pump 132, a heat exchanger 164, a cooling plate 166, and a power battery 168. The cycle of the cooling circuit 160 includes: the thermoelectric generator 120 supplies power to the circulating pump 132, the circulating pump 132 drives the coolant to circulate, the high-temperature coolant is changed into the low-temperature coolant after passing through the heat exchanger 164, the low-temperature coolant then flows through the cooling plate 166, the cold end face 124 of the thermoelectric generator 120 is cooled by the cooling plate 166, the low-temperature coolant flows through the power battery 168 to cool the power battery 168, the coolant flowing out of the power battery 168 is heated to be the high-temperature coolant, the high-temperature coolant flows into the heat exchanger 164, and the cooling circuit 160 circulates in the mode.
The power of the circulation pump 132 comes from the thermoelectric generator 120 and may come from other power sources on the vehicle.
The heat exchanger 164 may include a plate heat exchanger, a tube heat exchanger, or the like. The heat exchanger 164 may share a common path with the air conditioner compressor and the condenser circuit, that is, the cooling circuit 160 exchanges heat with the in-vehicle air conditioning system through the heat exchanger 164 to cool the coolant in the cooling circuit 160 through the air conditioning system. The cooling plate 166 may be replaced by other mechanical structures having a heat exchange function, such as a serpentine cooling pipe.
In the thermoelectric power generation system for a vehicle in this embodiment, the electric energy generated by the thermoelectric generator 120 drives the circulating pump 132 in the cooling circuit 160 to work, so as to enhance the power generation effect.
In one embodiment, the cooling circuit 160 may include at least one of a power battery cooling circuit, an air conditioning cooling circuit (not shown), an electric machine cooling circuit (not shown), an electronic control cooling circuit (not shown), and an engine cooling circuit (not shown).
Among other things, since the cooling circuit 160 includes the power battery 168, the cooling circuit 160 in fig. 2 is a power battery cooling circuit. The power battery is as follows: the battery provides power for electric automobiles, electric trains, electric bicycles and golf carts. Specifically, the power battery includes a lithium iron phosphate battery, a lithium manganate battery, a ternary material battery, and the like.
The power battery 168 may be replaced with an electric motor, electric drive, engine, or other in-vehicle device that requires cooling, and as such, the cooling circuit 160 may include at least one of an air conditioning cooling circuit (not shown), an electric motor cooling circuit (not shown), an electronically controlled cooling circuit (not shown), and an engine cooling circuit (not shown).
In the thermoelectric power generation system for a vehicle in this embodiment, the temperature of the cold end surface 124 of the thermoelectric generator 120 is greatly reduced by the cooling circuit 160, so that the power generation efficiency of the thermoelectric generator is improved, meanwhile, the electric energy generated by the thermoelectric generator 120 drives the circulating pump 132 in the cooling circuit 160 to work, so that the circulating flow rate of the coolant in the cooling circuit 160 is enhanced, the cooling effect of the power battery 168, the motor, the electric drive or the engine in the cooling circuit 160 is improved, and the service life of these devices is prolonged. Specifically, the thermoelectric generator 120 is utilized to generate additional electric energy, and the electric energy is used to assist in adjusting the temperature of the power battery 168 in a high-temperature environment (such as summer), so that the service life of the power battery 168 is prolonged, the capacity attenuation rate is reduced, and the effects of energy conservation and emission reduction are achieved.
FIG. 3 is a schematic structural diagram of a thermoelectric power generation system for a vehicle according to another embodiment of the present application. As shown in fig. 3, the thermoelectric generation system for a vehicle further includes:
and a first switch 320 connected in series between the thermoelectric generator 120 and the electrical consumer (which may include the circulating water pump 132 in fig. 3) for controlling the electrical connection between the thermoelectric generator 120 and the electrical consumer.
The control unit (not shown) in the vehicle may control the first switch 320 to be turned on or off, when the first switch 320 is turned on, the thermoelectric generator 120 supplies power to the electrical appliance through the first switch 320, and when the first switch 320 is turned off, the thermoelectric generator 120 does not supply power to the electrical appliance. For example, the electrical consumer may include the circulation pump 132 of the battery cooling circuit, and when the thermoelectric generator 120 reaches a power generation condition (e.g., the vehicle is exposed to high temperature), the control strategy of the control unit may be: 1) when the battery pack temperature management system reaches a cooling triggering condition (in a high-temperature insolation environment, the battery pack temperature rise is very easy to trigger the battery cooling system to work), the control unit controls the first switch 320 to be closed, and the thermoelectric generator 120 supplies power to the circulating pump 132 of the battery cooling loop. 2) The battery pack temperature management system does not reach the cooling trigger condition, and the control unit controls the first switch 320 to be switched off.
In the thermoelectric power generation system for a vehicle in this embodiment, the first switch 320 is provided to flexibly control the electrical connection between the thermoelectric generator 120 and the electrical appliance.
With continued reference to fig. 3, the thermoelectric generation system for a vehicle further includes: and the storage battery 340 is electrically connected with the thermoelectric generator 120 and is used for storing the electric energy generated by the thermoelectric generator 120.
The battery 340 is different from the power battery 168, and is a battery for low-voltage power supply or starting of the entire vehicle, for example, the battery 340 may provide low-voltage electric energy for the vehicle-mounted audio and the CAN bus control system. The battery 340 can be charged by the thermoelectric generator 120 when the power is not full. Alternatively, the battery 340 may be connected to the aforementioned power battery 168, and the battery 340 may be charged by the power battery 168. Specifically, when the battery 340 is severely low, the power battery 168 (under the condition of sufficient capacity) can rapidly charge the battery 340 through the DC/DC module 360.
In the thermoelectric power generation system for a vehicle in this embodiment, the storage battery 340 stores the surplus electric energy generated by the thermoelectric generator 120, so that the utilization rate of the energy is improved.
In one embodiment, the thermoelectric generation system for a vehicle further includes: and an anti-reverse charging diode 380 having one end electrically connected to the thermoelectric generator 120 and the other end electrically connected to the storage battery 340, for preventing the storage battery 340 from reversely charging the thermoelectric generator 120.
One of the functions of the anti-reverse charging diode 380 is to prevent the current of the storage battery 340 from being reversely sent to the thermoelectric generation assembly or the square matrix when the thermoelectric generation assembly or the square matrix in the thermoelectric generator 120 does not generate electricity, so that the energy is not consumed, and the assembly or the square matrix is heated or even damaged; the other function is to prevent the current among the branches of the square matrix from being sent backwards in the square matrix of the thermoelectric generation sheet.
In the thermoelectric power generation system for a vehicle in this embodiment, the reverse charging diode 380 is provided, so that the storage battery 340 is effectively prevented from reversely charging the thermoelectric generator 120.
In one embodiment, the thermoelectric generation system for a vehicle further includes: and a second switch 390 connected in series between the thermoelectric generator 120 and the battery 340 for controlling the electrical connection between the thermoelectric generator 120 and the battery 340.
A control unit (not shown) in the vehicle may control the second switch 390 to be turned on or off, when the second switch 390 is turned on, the thermoelectric generator 120 supplies power to the electrical appliance through the second switch 390, and when the second switch 390 is turned off, the thermoelectric generator 120 does not supply power to the electrical appliance. For example, the electrical consumer may include the circulation pump 132 of the battery cooling circuit, and when the thermoelectric generator 120 reaches a power generation condition (e.g., the vehicle is exposed to high temperature), the control strategy of the control unit may be: 1) if the battery 340 is not enough, the control unit controls the second switch 390 to be closed; 2) if the battery 340 is fully charged, the control unit controls the second switch 390 to be turned off in consideration of the overcharge protection. The electric power generated by the thermoelectric generator 120 does not charge the storage battery 340. The part of electric energy is consumed through a resistor, or an additional capacitor unit is added to store the electric energy, or the control unit determines to supply the electric energy to other electric devices needing power supply at present, and the mode of consuming the electric energy is not limited.
Optionally, the control unit may be a function-integrated controller, or may be an independently distributed control submodule, and the control unit controls on/off of the first switch 320 and the second switch 390, respectively, so as to implement management of functions such as thermoelectric generation, battery pack cooling loop action, charging and discharging of the power battery/storage battery, overcharge protection, and the like;
in the thermoelectric power generation system for a vehicle in this embodiment, the second switch 390 is provided to flexibly control the electrical connection between the thermoelectric generator 120 and the battery 340, and the structure is simple and easy to implement.
In one embodiment, a voltage boosting module 420 and a voltage stabilizing module 440 are further connected in series between the thermoelectric generator 120 and the electrical appliance (such as the circulating pump 132), and the electric energy generated by the thermoelectric generator 120 is firstly boosted by the voltage boosting module 420, then is stabilized by the voltage stabilizing module 440 and then is transmitted to the electrical appliance.
The boosting module 420 is configured to boost the voltage generated by the thermoelectric generator 120 to a rated operating voltage of the electric device, such as the circulating water pump 132, the air conditioner compressor, and the like. The boosting module 420 is also connected in series between the residual battery 340 of the thermoelectric generator 120 for boosting the voltage generated by the thermoelectric generator 120 enough to charge the battery 340. The voltage stabilizing module is used for keeping the voltage generated by the thermoelectric generator 120 stable.
In one embodiment, the body shell 140 includes a headliner and a vehicle side; the thermoelectric generator 120 is in contact with at least one of the roof and the side wall of the vehicle through the thermal end surface 122 to heat the thermal end surface through the temperature of the roof or the side wall of the vehicle.
The material of the car roof or the car side wall can comprise metal, organic ceramic, alloy and other materials which are not easy to deform. Specifically, the thermoelectric generator 120 is in contact with the metal sheet of the vehicle roof through the hot end surface 122. when the vehicle body shell 140 includes the vehicle roof, the pipeline or the cooling plate of the cooling circuit 160 needs to be led out to the vehicle roof, and the covering effect of thermoelectric generation is better. When the body shell 140 includes a vehicle side wall, the thermoelectric generator 120 contacts with the metal sheet of the vehicle side wall through the hot end surface 122, and a pipeline or a cooling plate of the cooling circuit 160 needs to be led out to the vehicle side wall. For example, in high temperature weather such as summer, the temperature of the roof is higher than that of the side walls of the vehicle because the roof receives direct sunlight. Therefore, compared with the side wall of the vehicle, the thermoelectric generator 120 is in contact with the roof of the vehicle, which is more beneficial to increasing the power generation efficiency of the thermoelectric generator 120.
In one embodiment, the cooling circuit 160 includes a power battery cooling circuit disposed on the headliner interior surface.
Wherein, part or all of the components of the power battery cooling circuit are arranged on the inner surface of the vehicle roof. The device may include a power cell pack, a heat exchanger, a circulation pump, and the like.
The setting mode can include the hoist and mount mode, specifically, can weld integrated into one piece's steelframe on the roof, and power battery cooling circuit wholly places on the steelframe.
Compared with the power battery cooling circuit arranged under the engine compartment cover, the power battery cooling circuit is arranged on the inner surface of the car roof, the distance between the car roof and the cooling circuit 160 is reduced, when the cooling circuit is led out to the thermoelectric generator on the car roof, the length of the leading-out pipeline can be greatly reduced, and the structure is simplified.
Fig. 4 is a schematic structural diagram of a thermoelectric power generation system for a vehicle according to still another embodiment of the present application. As shown in fig. 4, a battery temperature management method is proposed based on this circuit. The method comprises the following steps:
1) when the thermoelectric generation sheet set 120 (i.e., the thermoelectric generator 120) does not reach a power generation condition (e.g., the vehicle is in a night environment, and the two ends of the power generation sheet are not enough to generate power generation voltage), the control unit 410 does not associate the thermoelectric generation; when the thermoelectric generation sheet group 120 reaches a power generation condition (e.g., the vehicle is exposed to high temperature), the control logic of the control unit 410 proceeds as follows;
2) when the electric quantity of the storage battery 340 is insufficient and the temperature management system of the power battery 168 does not reach the cooling triggering condition (for example, when the sensor detects that the temperature of the power battery 168 is greater than or equal to the Tset, the control unit 410 sends a cooling starting request), the electric quantity of the thermoelectric generation sheet set 120 is automatically stored in the storage battery 340;
3) when the storage battery 340 is full of electricity and the temperature management system of the power battery 168 does not reach the cooling triggering condition, the control unit 410 considers the overcharge protection, and the electric energy generated by the thermoelectric generation sheet set 120 does not charge the storage battery 340. The part of the electric energy is consumed through a resistor, or an additional capacitor unit is added to store the electric energy, or the control unit 410 determines to supply the electric energy to other electric devices needing power supply at present, or the circuit switch 460 of the thermoelectric power generation piece loop is disconnected, and the method is not limited.
4) When the battery 340 is fully charged and the temperature management system of the power battery 168 has reached a cooling triggering condition (in a high-temperature insolation environment, the battery pack temperature rise is very easy to trigger the battery cooling), the electric energy generated by the thermoelectric generation sheet set 120 is preferentially supplied to the circulating pump 132 and the air conditioner compressor (not shown);
5) when the storage battery 340 is low in electric quantity and the temperature management system of the power battery 168 has reached a cooling trigger condition, the control unit 410 performs unified energy management and distribution according to the thermoelectric generation power, the storage battery feeding degree, the power battery pack SOC and the battery pack cooling power requirement;
6) when the cooling requirement of the power battery 168 is terminated, the thermoelectric generation sheet group 120 generates electric energy according to the items 2) and 3).
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (10)
1. A thermoelectric power generation system for a vehicle, comprising:
the thermoelectric generator comprises a hot end face and a cold end face, the thermoelectric generator is in contact with the body shell through the hot end face so as to heat the hot end face through the temperature of the body shell, and the thermoelectric generator is in contact with a cooling loop in the vehicle through the cold end face so as to cool the cold end face through the cooling loop;
and the electrical appliance is electrically connected with the thermoelectric generator and is used for converting the electric energy generated by the thermoelectric generator into energy in other forms.
2. The thermoelectric generation system for vehicle of claim 1, wherein the electrical load comprises a circulation pump disposed in the cooling circuit for converting the electric energy generated by the thermoelectric generator into mechanical energy to drive the coolant in the cooling circuit to circulate.
3. The thermoelectric generation system for vehicle of claim 2, wherein the cooling circuit comprises at least one of a power battery cooling circuit, an air conditioner cooling circuit, a motor cooling circuit, an electronic control cooling circuit, and an engine cooling circuit.
4. The thermoelectric generation system for vehicle of claim 1, further comprising:
and the first switch is connected between the thermoelectric generator and the electrical appliance in series and is used for controlling the electrical connection of the thermoelectric generator and the electrical appliance.
5. The thermoelectric generation system for vehicle of claim 1, further comprising:
the storage battery is electrically connected with the thermoelectric generator and is used for storing the electric energy generated by the thermoelectric generator;
the second switch is connected between the thermoelectric generator and the storage battery in series and used for controlling the electric connection of the thermoelectric generator and the storage battery;
and one end of the anti-reverse charging diode is electrically connected with the thermoelectric generator, and the other end of the anti-reverse charging diode is electrically connected with the storage battery and is used for preventing the storage battery from reversely charging the thermoelectric generator.
6. The thermoelectric generation system for vehicle of claim 1, further comprising: and the heat-conducting glue is arranged between the hot end face and the vehicle body shell or between the cold end face and the cooling loop.
7. The thermoelectric power generation system for the vehicle as claimed in claim 1, wherein a voltage boosting module and a voltage stabilizing module are further connected in series between the thermoelectric generator and the electrical appliance, and the electric energy generated by the thermoelectric generator is firstly boosted by the voltage boosting module, then is stabilized by the voltage stabilizing module and then is transmitted to the electrical appliance.
8. The thermoelectric generation system for vehicles according to claim 1, wherein the vehicle body case includes a roof and a side wall; the thermoelectric generator is in contact with at least one of the vehicle roof and the vehicle side wall through the hot end face so as to heat the hot end face through the temperature of the vehicle roof or the vehicle side wall.
9. The thermoelectric generation system for vehicle according to claim 8, wherein the cooling circuit comprises a power battery cooling circuit provided on the inner surface of the roof.
10. A vehicle characterized by comprising the thermoelectric generation system for a vehicle according to any one of claims 1 to 9.
Priority Applications (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115001315A (en) * | 2022-07-01 | 2022-09-02 | 广东德尔玛科技股份有限公司 | Electrical equipment and power supply system thereof |
| CN115398165A (en) * | 2020-05-01 | 2022-11-25 | 尼科尔德系统株式会社 | container and car |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115398165A (en) * | 2020-05-01 | 2022-11-25 | 尼科尔德系统株式会社 | container and car |
| CN115001315A (en) * | 2022-07-01 | 2022-09-02 | 广东德尔玛科技股份有限公司 | Electrical equipment and power supply system thereof |
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