CN116424125A - Heat management system of charging and replacing station and charging and replacing station - Google Patents
Heat management system of charging and replacing station and charging and replacing station Download PDFInfo
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- CN116424125A CN116424125A CN202310449780.7A CN202310449780A CN116424125A CN 116424125 A CN116424125 A CN 116424125A CN 202310449780 A CN202310449780 A CN 202310449780A CN 116424125 A CN116424125 A CN 116424125A
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- 238000001816 cooling Methods 0.000 claims abstract description 193
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 153
- 238000005057 refrigeration Methods 0.000 claims abstract description 39
- 238000004891 communication Methods 0.000 claims description 33
- 239000003507 refrigerant Substances 0.000 claims description 22
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 12
- 239000002826 coolant Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 4
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 239000000110 cooling liquid Substances 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229920002545 silicone oil Polymers 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 239000012084 conversion product Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
- B60L53/302—Cooling of charging equipment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
Abstract
The invention relates to the field of charging and replacing stations, in particular to a thermal management system of a charging and replacing station and the charging and replacing station, and aims to solve the problems of high cost and limited effect of the existing double-temperature water cooling. The thermal management system comprises a refrigeration cycle, a battery compartment cooling cycle and a charging cooling cycle; the refrigeration cycle comprises an evaporator, the battery compartment cooling cycle comprises a first heat exchange component, the charging cooling cycle comprises a second heat exchange component, the evaporator, the first heat exchange component and the second heat exchange component are circularly communicated through a circulation heat exchange pipeline, and the refrigeration cycle provides cold energy for the first heat exchange component and the second heat exchange component; the cooling capacity in the first heat exchange component is used for cooling the battery in the battery compartment by the battery compartment cooling circulation; the charge cooling cycle uses the cold in the second heat exchange component to cool the charge module and/or the charge stake. The application can realize that independent refrigeration cycle carries out the refrigeration of different temperatures to different positions, realizes two temperature demands, practices thrift manufacturing cost and control cost.
Description
Technical Field
The invention relates to the field of charging and exchanging stations, and particularly provides a thermal management system of a charging and exchanging station.
Background
With the popularization of new energy automobiles, the demands of charging and power conversion products in the market are rapidly increased, and researches on related technologies are greatly focused. In order to improve the energy supplementing speed, the charging module, the charging gun wire, the rechargeable battery and the like all introduce liquid cooling technology so as to reduce the thermal runaway risk existing in the rapid energy supplementing process. The cooling unit of liquid cooling rifle line that charges is located and fills electric pile inside, and its noise and occupied space are difficult to control, often can appear noisy, bulky problem. The cooling liquid requirements of the charging modules, namely the AC/DC and DC/DC modules, are inconsistent with those of the batteries in the power exchange station, and the requirement balance is difficult to realize through the same set of cooling liquid.
In the market, in order to realize different cooling requirements of battery cooling in a charging module and a battery exchange station, in patent document CN114056147a, the opening and closing states of related valves (such as a three-way valve and a regulating valve corresponding to an air conditioning system in a power battery part/station) and specific opening degrees, operation parameters of a pump and the like are controlled, so that effective heat management is realized. However, this method requires a valve, and a control device is used to control the valve, so that the production cost and the control cost are high, and the effect is limited.
Accordingly, there is a need in the art for a thermal management system for a charging and exchange station that addresses the above-described problems.
Disclosure of Invention
The invention aims to solve the technical problems that the double-temperature water cooling in the prior art needs to be controlled by adopting a valve and a control device, and has higher cost and limited effect.
The invention provides a heat management system of a charging and exchanging station, which comprises a refrigeration cycle, a battery compartment cooling cycle and a charging and cooling cycle;
the refrigeration cycle comprises an evaporator, the battery compartment cooling cycle comprises a first heat exchange component, the charging cooling cycle comprises a second heat exchange component, and the evaporator, the first heat exchange component and the second heat exchange component are in cycle communication through a cycle heat exchange pipeline;
wherein the refrigeration cycle is configured to provide refrigeration to the first heat exchange member and the second heat exchange member;
the battery compartment cooling cycle is configured to at least enable use of the cold in the first heat exchange member for cooling the battery within the battery compartment;
the charge cooling cycle is arranged to be able to use at least the cold in the second heat exchange part for cooling the charging module and/or the charging pile.
Under the condition of adopting the technical scheme, the refrigeration cycle provides cold energy for the first heat exchange component and the second heat exchange component, so that the battery compartment cooling cycle and the charging cooling cycle can cool the battery, the charging module and/or the charging pile independently of each other, thereby realizing the refrigeration of different temperatures of different positions by independent refrigeration cycle, realizing the double water temperature requirement without controlling a valve and a control device, and saving the production cost and the control cost.
In a specific embodiment of the above charge-to-heat management system, the refrigeration cycle includes a compressor, a condenser, a fan, a throttling element, and the evaporator; the evaporator is internally provided with a refrigerant flow passage and a first heat exchange flow passage which can exchange heat with each other, and the compressor, the condenser and the throttling element are circularly communicated with the refrigerant flow passage through a refrigerant pipeline; the first heat exchange flow passage is in circulation communication with the first heat exchange component and the second heat exchange component.
In the specific embodiment of the charging and exchanging electric heat management system, the number of the fans is two.
Under the condition of adopting the technical scheme, the two fans can realize the adjustment of heat dissipation capacity, and the control precision is improved. Meanwhile, the arrangement mode of the two fans can ensure the overall stability, and even if one fan is damaged, the overall operation is not affected.
In a specific embodiment of the charging and replacing electric heat management system, the number of the compressors and the throttling elements is two, and each compressor and the corresponding throttling element are independently communicated with the condenser and the refrigerant flow passage in a circulating way through a refrigerant pipeline.
Under the condition of adopting the technical scheme, the refrigerating capacity requirement can be met by opening a single compressor and a throttling element under the common working condition, so that the purposes of low cost and energy saving are achieved, and two compressors can be simultaneously opened under the special working condition to meet the high refrigerating capacity requirement. Meanwhile, two sets of compression loops are adopted, so that the high reliability is realized.
In the specific embodiment of the charging and heat exchanging electric heat management system, the first heat exchanging flow channel, the first heat exchanging component and the second heat exchanging component are sequentially communicated.
Under the condition of adopting the technical scheme, after the medium in the evaporator in the circulation is cooled, the medium passes through the first heat exchange component and then passes through the second heat exchange component, so that the medium temperature in the first heat exchange component can be ensured to be lower, and the medium temperature in the battery compartment cooling circulation is ensured to be lower.
In the specific embodiment of the charging and exchanging electric heat management system, the circulating heat exchange pipeline is communicated with a first water pump.
Under the condition of adopting the technical scheme, the circulation of the medium in the circulating heat exchange pipeline is smoother through the first water pump.
In a specific embodiment of the charging and exchanging electric heat management system, the first heat exchange component is a first water tank.
In a specific embodiment of the above charging and exchanging electric heat management system, the battery compartment cooling circulation further comprises a battery compartment cooling pipeline and a second water pump, the battery compartment cooling pipeline is in circulation communication with the first water tank, and the second water pump is arranged in the battery compartment cooling pipeline.
Under the condition of adopting the technical scheme, the circulation of the medium in the battery compartment cooling pipeline is smoother through the second water pump.
In a specific embodiment of the above charging and replacing electric heat management system, the number of the battery compartment cooling pipelines is multiple, and each battery compartment cooling pipeline is provided with one second water pump.
In a specific embodiment of the charging and heat exchanging electric heat management system, the second heat exchanging component is a first heat exchanger, a second heat exchanging flow channel and a first cooling flow channel which can exchange heat with each other are formed inside the first heat exchanger, and the second heat exchanging flow channel is in circulation communication with the evaporator and the first heat exchanging component.
In a specific embodiment of the charging and replacing electric heat management system, the charging and cooling cycle further comprises a second water tank, a charging module cooling pipeline and a third water pump, wherein the second water tank, the first cooling flow channel and the charging module cooling pipeline are in cycle communication, and the third water pump is arranged in the charging module cooling pipeline.
Under the condition of adopting the technical scheme, the cooling capacity is brought into the second water tank through the first cooling flow channel, and the third water pump enables media in the second water tank to circulate in the cooling pipeline of the charging module, so that the temperature of the battery charging module can be reduced.
In a specific embodiment of the charging and heat exchanging electric heat management system, the charging and cooling cycle further comprises a fourth water pump and a charging pile heat exchange pipeline, the second water tank, the first cooling flow passage and the charging pile heat exchange pipeline are in cycle communication, and the fourth water pump is arranged in the charging pile heat exchange pipeline.
Under the condition of adopting the technical scheme, the fourth water pump circulates the medium in the second water tank into the heat exchange pipeline of the charging pile, so that the charging pile is convenient to cool.
In a specific embodiment of the charging and heat exchanging electric heat management system, the charging and cooling cycle further comprises a second heat exchanger, a fifth water pump and a charging pile cooling pipeline, a third heat exchange flow channel and a second cooling flow channel which can exchange heat with each other are formed in the second heat exchanger, the second water tank, the first cooling flow channel, the charging pile heat exchange pipeline and the three heat exchange flow channels are in cycle communication, the charging pile cooling pipeline is in cycle communication with the second cooling flow channel, and the fifth water pump is arranged in the charging pile cooling pipeline.
Under the condition of adopting the technical scheme, the cooling capacity in the heat exchange pipeline of the charging pile is transmitted into the cooling pipeline of the charging pile by adopting the second heat exchanger, and then the circulation of the medium in the cooling pipeline of the charging pile is realized by adopting the fifth water pump, so that the temperature of the charging pile is reduced, the charging pile is provided with independent circulation temperature reduction control, the independent cooling design of the charging pile is facilitated, and the cooling safety of the charging pile is improved.
In a specific embodiment of the above charging and replacing electric heat management system, the fifth water pump is in communication connection with a controller of the charging pile of the charging and replacing station.
Under the condition of adopting the technical scheme, the fifth water pump is in communication connection with the controller of the charging pile, and the start and stop of the fifth water pump can be controlled by the controller, so that the purposes of quick matching of charging and cooling and high-efficiency operation are achieved.
In a specific embodiment of the above charging and exchanging electric heat management system, an electric heater is disposed in the first water tank.
Under the condition of adopting the technical scheme, in the low-temperature environment, the electric heater can be adopted to heat the medium in the first water tank, so that the problem of insufficient heat in the heat exchange process in winter is avoided.
The invention also provides a charging and exchanging station, which comprises the thermal management system of the charging and exchanging station.
Under the condition of adopting the technical scheme, the charging and replacing station can realize the control of different temperatures at different positions, meanwhile, the valve for controlling the temperatures at different positions in the prior art is saved, the cold energy can be utilized to the greatest extent, and the energy consumption of the charging and replacing station is reduced.
Scheme 1. A heat management system of a charging and exchanging station is characterized by comprising a refrigeration cycle, a battery compartment cooling cycle and a charging and cooling cycle;
the refrigeration cycle comprises an evaporator, the battery compartment cooling cycle comprises a first heat exchange component, the charging cooling cycle comprises a second heat exchange component, and the evaporator, the first heat exchange component and the second heat exchange component are in cycle communication through a cycle heat exchange pipeline;
wherein the refrigeration cycle is configured to provide refrigeration to the first heat exchange member and the second heat exchange member;
the battery compartment cooling cycle is configured to at least enable use of the cold in the first heat exchange member for cooling the battery within the battery compartment;
the charge cooling cycle is arranged to be able to use at least the cold in the second heat exchange part for cooling the charging module and/or the charging pile.
Solution 2. The thermal management system of a charging and exchanging station according to solution 1, wherein the refrigeration cycle comprises a compressor, a condenser, a fan, a throttling element and the evaporator;
the evaporator is internally provided with a refrigerant flow passage and a first heat exchange flow passage which can exchange heat with each other, and the compressor, the condenser and the throttling element are circularly communicated with the refrigerant flow passage through a refrigerant pipeline; the first heat exchange flow passage is in circulation communication with the first heat exchange component and the second heat exchange component.
The thermal management system of a charging and exchanging station according to claim 2, wherein the number of fans is two.
The heat management system of a charging and exchanging station according to claim 2, wherein the number of the compressors and the throttle elements is two, and each of the compressors and the corresponding throttle element is independently in circulation communication with the condenser and the refrigerant flow passage through a refrigerant pipe.
The thermal management system of a charging and heat exchange station according to claim 2, wherein the first heat exchange flow channel, the first heat exchange component and the second heat exchange component are sequentially communicated.
The heat management system of a heat exchange charging station according to claim 1, wherein the circulating heat exchange pipeline is provided with a first water pump.
The thermal management system of a charging and heat exchange station according to claim 1, wherein the first heat exchange component is a first water tank.
The thermal management system of the charging and exchanging station according to the scheme 7 is characterized in that the battery compartment cooling circulation further comprises a battery compartment cooling pipeline and a second water pump, the battery compartment cooling pipeline is in circulation communication with the first water tank, and the second water pump is arranged in the battery compartment cooling pipeline.
The thermal management system of a charging and exchanging station according to claim 8, wherein the number of the battery compartment cooling pipes is plural, and one second water pump is provided on each of the battery compartment cooling pipes.
The heat management system of a heat exchange charging station according to claim 1, wherein the second heat exchange member is a first heat exchanger, and a second heat exchange flow passage and a first cooling flow passage capable of exchanging heat with each other are formed inside the first heat exchanger, and the second heat exchange flow passage is in circulation communication with the evaporator and the first heat exchange member.
The thermal management system of a charging and exchanging station according to scheme 10, wherein the charging and cooling cycle further comprises a second water tank, a charging module cooling pipeline and a third water pump, the second water tank, the first cooling flow channel and the charging module cooling pipeline are in cycle communication, and the third water pump is arranged in the charging module cooling pipeline.
The heat management system of the charging and exchanging station according to scheme 11 is characterized in that the charging and cooling cycle further comprises a fourth water pump and a charging pile heat exchanging pipeline, the second water tank, the first cooling flow channel and the charging pile heat exchanging pipeline are in cycle communication, and the fourth water pump is arranged in the charging pile heat exchanging pipeline.
The heat management system of the charging and exchanging station according to claim 12, wherein the charging and cooling cycle further comprises a second heat exchanger, a fifth water pump and a charging pile cooling pipeline, a third heat exchanging channel and a second cooling channel which can exchange heat with each other are formed inside the second heat exchanger, the second water tank, the first cooling channel, the charging pile heat exchanging pipeline and the three heat exchanging channels are in circulation communication, the charging pile cooling pipeline is in circulation communication with the second cooling channel, and the fifth water pump is arranged in the charging pile cooling pipeline.
The thermal management system of a charging and exchange station of claim 13, wherein the fifth water pump is communicatively coupled to a controller of a charging stake of the charging and exchange station.
The thermal management system of a charging and exchanging station according to claim 7, wherein an electric heater is disposed in the first water tank.
Drawings
Preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:
fig. 1 is a flow chart of a battery charging and swapping station thermal management system.
List of reference numerals:
1-a refrigeration cycle; 11-a compressor; 12-a condenser; 13-a fan; 14-a throttling element; 15-an evaporator; 16-refrigerant pipeline;
2-a circulating heat exchange pipeline; 21-a first water pump;
4-cooling and circulating the battery compartment; 41-a second water pump; 42-battery compartment; 43-battery compartment cooling line; 44-a first heat exchange member; 45-an electric heater;
5-a charge cooling cycle; 51-a second water tank; 52-a third water pump; 53-a charging module; 54-charging module cooling line; 55-a second heat exchanger; 56-a fourth water pump; 57-charging pile; 571-a charging pile heat exchange pipeline; 572-cooling the charging pile; 58-a fifth water pump; 59. and a second heat exchange member.
Detailed Description
Preferred embodiments of the present application are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present application, and are not intended to limit the scope of the present application. Those skilled in the art can adapt it as desired to suit a particular application. For example, the throttling element in the present application is a thermal expansion valve, although other throttling elements, such as capillary tubes or electronic expansion valves, etc., may be used.
It should be noted that, in the description of the present application, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; the connection can be mechanical connection or other connection; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms in this application will be understood by those skilled in the art as the case may be. Furthermore, the terms "first," second, "" third, "" fourth, "and fifth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
It should be further understood that the terms "upper," "inner," and the like indicate an orientation or a positional relationship based on the orientation or the positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. In addition, "a plurality of" in this application means at least two.
As shown in fig. 1, in order to solve the problems of the prior art that the double-temperature water cooling needs to be controlled by a valve and a control device and the cost is high, the invention provides a thermal management system of a charging and exchanging station, which comprises a refrigeration cycle 1, a battery compartment cooling cycle 4 and a charging cooling cycle 5. The refrigeration cycle comprises an evaporator 15, the battery compartment cooling cycle 4 comprises a first heat exchange component 44, the charging cooling cycle 5 comprises a second heat exchange component 59, and the evaporator 15, the first heat exchange component 44 and the second heat exchange component 59 are in circulation communication through a circulation heat exchange pipeline 2. Wherein the refrigeration cycle 1 is arranged to be able to provide refrigeration to the first heat exchange member 44 and the second heat exchange member 59; the battery compartment cooling cycle 4 is arranged to be able to use at least the cold in the first heat exchange member 44 for cooling the batteries within the battery compartment 42; the charge cooling cycle 5 is arranged to be able to use at least the cold in the second heat exchange member 59 for cooling the charging module 53 and/or the charging pile 57.
In this way, under the condition of adopting the technical scheme, the refrigeration cycle 1 provides cold energy for the first heat exchange component 44 and the second heat exchange component 59, so that the battery compartment cooling cycle 4 and the charging cooling cycle 5 can cool the battery and the charging module 53 and/or the charging pile 57 independently of each other, thereby realizing that the independent refrigeration cycle 1 carries out refrigeration of different temperatures at different positions, realizing double water temperatures without controlling a valve and a control device, and saving production cost.
In the above preferred embodiment of the charge and heat management system, the refrigeration cycle 1 comprises two compressors 11, a condenser 12, two fans 13, two throttling elements 14 and an evaporator 15; the evaporator 15 has a refrigerant flow passage and a first heat exchange flow passage formed therein, which are heat-exchanged with each other, an outlet of a compressor 11 is communicated with an inlet of a condenser 12, an outlet of the condenser 12 is communicated with an inlet of a throttle member 14, an outlet of the throttle member 14 is communicated with an inlet of the refrigerant flow passage, and an outlet of the refrigerant flow passage is communicated with an inlet of the compressor 11 to form a cycle as a whole. The pipeline used for communication between adjacent components is a refrigerant pipeline 16. The other compressor 11 and the corresponding throttling element 14 are independently and circularly communicated with the condenser 12 and the refrigerant flow passage through a refrigerant pipeline 16, the first heat exchange flow passage is circularly communicated with the first heat exchange component 44 and the second heat exchange component 59, and two fans 13 are arranged on one side of the condenser 12.
Thus, the two fans 13 can adjust the heat dissipation amount, and control accuracy is improved. Meanwhile, the arrangement mode of the two fans can ensure the overall stability, and even if one fan 13 is damaged, the overall operation is not affected. Meanwhile, the number of the fans 13 is multiple, two fans 13 are optimal, the fans 13 are used for radiating heat to the condenser 12, and a person skilled in the art can select different numbers of fans 13 according to specific needs. The refrigerating capacity requirement can be met by opening a single compressor 11 and a throttling element 14 under the common working condition, so that the purposes of low cost and energy saving are achieved, and two compressors can be simultaneously opened under the special working condition to meet the high refrigerating capacity requirement. Meanwhile, two sets of compression loops are adopted, so that the high reliability is realized.
It should be noted that the connection sequence between several components in the refrigeration cycle is not necessary, and the connection mode is the optimal connection mode, and those skilled in the art may select the connection sequence between several components based on a specific application scenario, or may not use the connection sequence.
It should be further noted that the refrigeration cycle 1 is used to provide cooling capacity, and the components included in the refrigeration cycle 1 are only the most basic components constituting the refrigeration cycle 1, and those skilled in the art may add valves, sensors, etc. to the refrigeration cycle 1 according to the needs of practical applications. The throttling element here adopts a thermal expansion valve, but other valves with throttling effect, such as capillary tubes or electronic expansion valves, can also be adopted.
It should be further noted that the number of compressors 11 and throttling elements 14 is two optimal choices, mainly for increasing the overall reliability, and those skilled in the art can choose more compressors 11 and throttling elements 14 to further increase the overall reliability, and can use one compressor 11 and throttling element 14.
In the preferred embodiment of the charging and heat exchanging electric heat management system, the first heat exchanging flow channel, the first heat exchanging component 44 and the second heat exchanging component 59 are sequentially communicated, the circulating heat exchanging pipeline 2 is communicated with the first water pump 21, the first water pump 21 is arranged on the circulating heat exchanging pipeline 2 between the first heat exchanging component 44 and the second heat exchanging component 59, and the circulating heat exchanging pipeline 2 is filled with glycol cooling liquid for transmitting cold energy. In this way, after the medium in the evaporator 15 in the circulation is cooled, the medium passes through the first heat exchange component 44 and then passes through the second heat exchange component 59, so that the medium temperature in the first heat exchange component 44 can be ensured to be lower, and the medium temperature in the battery compartment cooling circulation 4 can be further ensured to be lower. The temperature required for the charge cooling cycle 5 in communication with the second heat exchange member 59 is generally higher, and even the medium passing through the first heat exchange member 44 can cool the second heat exchange member 59, thereby saving more energy. The circulation of the medium in the circulating heat exchange pipeline 2 is smoother through the first water pump 21.
It should be noted that, the order of arrangement of the first heat exchange flow channel, the first water pump 21 of the first heat exchange component 44, and the second heat exchange component 59 is not necessarily the same, the above connection mode is the optimal connection mode, and those skilled in the art may select the connection order between the above components based on the specific application scenario. Further, the arrangement of the first water pump 21 is not necessary, and a person skilled in the art may choose whether to arrange the first water pump 21 and a specific number of the first water pumps 21 based on a specific application scenario, or may not arrange the first water pump 21 or arrange a plurality of first water pumps 21.
In the preferred embodiment of the charge and heat management system described above, the first heat exchange member 44 is a first water tank in which glycol coolant is stored. The battery compartment cooling circulation 4 further comprises a battery compartment cooling pipeline 43 and a second water pump 41, the battery compartment cooling pipeline 43 is in circulation communication with the first water tank, and the second water pump 41 is arranged on the battery compartment cooling pipeline 43. In this application, the quantity of battery compartment cooling pipeline 43 is two, and two battery compartment cooling pipeline 43 all communicate with first water tank circulation, is provided with a second water pump 41 on every battery compartment cooling pipeline 43. Wherein one battery compartment cooling duct 43 can cool five battery compartments 42 at the same time, and the battery compartments 42 communicate with the battery compartment cooling duct 43 in parallel. In this way, the cooling capacity in the first water tank is used for cooling the battery compartment 42, and the second water pump 41 is used for enabling circulation of the medium in the battery compartment cooling pipeline 43 to be smoother.
The number of battery compartment cooling circuits 4 is plural, and a person skilled in the art can set the number of battery compartments 42 and the refrigerating capacity of the refrigerating cycle 1 as required, and further select the number of battery compartment cooling circuits 43, and in this embodiment, the optimal selection is that the number of battery compartment cooling circuits 43 is two. Meanwhile, the same battery compartment cooling pipeline 43 can cool a plurality of battery compartments 42 at the same time, and a person skilled in the art can select the number of battery compartments 42 on the same battery compartment cooling pipeline 43 according to needs, and in this embodiment, the optimal selection is that the number of battery compartments 42 on the same battery compartment cooling pipeline 43 is five.
It should be further noted that the arrangement of the second water pumps 41 is not necessary, and those skilled in the art may choose whether to arrange the second water pumps 41 and the specific number of the second water pumps 41 based on the specific application scenario, or may not arrange the second water pumps 41 or arrange a plurality of second water pumps 41.
It should be noted that, although the above embodiment is described by taking the first heat exchange member 44 as an example of the first water tank, this is merely a preferred embodiment, and a person skilled in the art may replace the specific form of the first heat exchange member 44 as long as it can absorb the cold of the circulation heat exchange line 2. For example, the first heat exchanging element 44 may also be a heat exchanger, and the heat exchanger may specifically be a plate heat exchanger, a double pipe heat exchanger, or the like.
In the preferred embodiment of the charge and heat exchange electric heat management system described above, the second heat exchange member 59 is a first heat exchanger in which a second heat exchange flow passage and a first cooling flow passage that can exchange heat with each other are formed, and the second heat exchange flow passage is in circulation communication with the evaporator 15 and the first heat exchange member 44. The first heat exchanger may be a plate heat exchanger, a double pipe type individual heat exchanger, or the like. The charge cooling cycle 5 further includes a second water tank 51, a charge module cooling line 54, and a third water pump 52, an outlet of the second water tank 51 is communicated with an inlet of the third water pump 52, an outlet of the third water pump 52 is communicated with an inlet of the first cooling flow passage, and an outlet of the first cooling flow passage is communicated with an inlet of the second water tank. The two adjacent components are communicated by adopting a charging module cooling pipeline 54, wherein the charging module cooling pipeline 54 between the outlet of the third water pump 52 and the inlet of the first cooling flow passage passes through the battery charging module 53 and is used for cooling the battery charging module 53. In the case of adopting the above technical solution, the cooling capacity is brought into the second water tank 51 through the first cooling flow passage, and the third water pump 52 circulates the medium in the second water tank 51 in the charging module cooling line 54, so that the battery charging module 53 can be cooled.
It should be noted that, in the above-mentioned relationship of the cyclic connection between the components for cooling the battery charging module 53, those skilled in the art can adjust according to specific usage conditions so as to conform to different application scenarios. Further, the third water pump 52 is not necessarily provided, and a person skilled in the art may select whether to provide the third water pump 52 and a specific number of the third water pumps 52 based on a specific application scenario, or may not provide the third water pump 52 or provide a plurality of third water pumps 52.
It should be noted that, in order to achieve the simplest structure of cooling the battery charging module 53, a person skilled in the art may add a corresponding valve or a filter to the charging module cooling line 54 according to the actual requirement.
It should be noted that, although the above embodiment is described by taking the second heat exchanging member 59 as an example of the first heat exchanger, this is merely a preferable embodiment, and a person skilled in the art may replace the specific form of the second heat exchanging member 59 as long as it can absorb the cooling capacity of the circulation heat exchanging line 2. For example, the second heat exchanging element 59 may also be a water tank, or the second heat exchanging element 59 may not be provided, but directly connect the circulation heat exchanging line 2 with the second water tank 51 in circulation.
In the preferred embodiment of the charge-to-heat management system described above, the charge cooling cycle 5 further includes a fourth water pump 56, a second heat exchanger 55, and a charge pile heat exchange line 571; the second heat exchanger 55 is internally provided with a third heat exchange flow passage and a second cooling flow passage which can exchange heat with each other, the outlet of the second water tank 51 is communicated with the inlet of the fourth water pump 56, the outlet of the fourth water pump 56 is communicated with the inlet of the third heat exchange flow passage, the outlet of the third heat exchange flow passage is communicated with the inlet of the first cooling flow passage, the outlet of the first cooling flow passage is communicated with the inlet of the second water tank 51, and two adjacent components are communicated by adopting a charging pile heat exchange pipeline 571. In this way, the fourth water pump 56 circulates the medium in the second water tank 51 into the charging pile heat exchange pipeline 571, and the medium in the second water tank 51 is ethylene glycol coolant, where the ethylene glycol coolant is just one of the cooling mediums, and the cooling medium may be propylene glycol coolant, water or silicone oil.
It should be noted that, the above components are in a cyclic connection relationship with each other, and those skilled in the art can adjust the above components according to specific usage situations so as to conform to different application scenarios. Further, the fourth water pump 56 is not necessary, and a person skilled in the art may choose whether to set the fourth water pump 56 and a specific number of the fourth water pumps 56 based on a specific application scenario, or may not set the fourth water pump 56 or set a plurality of the fourth water pumps 56.
In the preferred embodiment of the charge-to-heat management system, the charge cooling cycle 5 further includes a fifth water pump 58 and a charge pile cooling pipe 572, the outlet of the second cooling flow channel is connected to the inlet of the fifth water pump 58, the outlet of the fifth water pump 58 is connected to the inlet of the second cooling flow channel, and two adjacent components are connected by the charge pile cooling pipe 572, wherein the charge pile cooling pipe 572 between the outlet of the fifth water pump 58 and the inlet of the second cooling flow channel is used for cooling the charge pile 57. In this way, the second heat exchanger 55 is used to transfer the cold energy in the charging pile heat exchange pipeline 571 into the charging pile cooling pipeline 572, and the fifth water pump 58 is used to circulate the medium in the charging pile cooling pipeline 572, so as to cool the charging pile 57. Meanwhile, the charging pile has independent circulating cooling control, which is favorable for the independent cooling design of the charging pile and improves the cooling safety of the charging pile. The cooling medium in the charging pile cooling pipe 572 is physically isolated, and the charging pile cooling pipe 57 may be filled with a medium different from other circulation pipes, such as silicone oil. And here, the second heat exchanger 55 may be a plate heat exchanger, and the second heat exchanger 55, the fifth water pump 58 and the charging pile cooling pipe 572 are mounted on the charging pile 57, so as to facilitate heat dissipation of the charging pile 57.
It should be noted that, the above components are in a cyclic connection relationship with each other, and those skilled in the art can adjust the above components according to specific usage situations so as to conform to different application scenarios. Further, the arrangement of the fifth water pump 58 is not necessary, and a person skilled in the art may choose whether to arrange the fifth water pump 58 and a specific number of the fifth water pumps 58 based on a specific application scenario, or may not arrange the fifth water pump 58 or arrange a plurality of fifth water pumps 58.
It should be noted that, in order to achieve the simplest structure of the charge cooling cycle 5 for transmitting the cooling energy, a person skilled in the art may add a corresponding valve or a filter to the charge cooling cycle 5 according to the actual requirement. The silicone oil can also be replaced by other cooling liquids, such as water, glycol solution, etc.
It should be further noted that the second heat exchanger 55 is not necessarily provided, and those skilled in the art may choose whether to provide the second heat exchanger 55 or not based on the specific application scenario, or may not provide the second heat exchanger 55. For example, the charging pile heat exchanging pipe 571 is used to directly radiate heat from the charging pile, or the charging pile cooling pipe 572 is used to radiate heat from both the charging pile battery charging module 53 and the charging pile 57.
In the preferred embodiment of the charging and replacing electric heat management system described above, the fifth water pump 58 is communicatively connected to the controller of the charging pile 57 of the charging and replacing station. Thus, the controller can control the start and stop of the fifth water pump 58, so as to achieve the purposes of quick matching of charging and cooling and high-efficiency operation.
It should be noted that the setting of the controller is not necessary, and those skilled in the art can select whether to use the controller or not according to the specific use scenario, and the specific configuration of the controller, and of course, the controller may not be used.
In the preferred embodiment of the charge and heat management system described above, the electric heater 45 is disposed in the first water tank. In this way, in the low-temperature environment, the electric heater 45 can be used for heating the medium in the first water tank, so that the problem of insufficient heat in the heat exchange process in winter is avoided.
The following describes a specific operation mode of the charging station thermal management system provided by the present invention with reference to fig. 1. In a high temperature environment, the battery and the charging pile 57 in the battery exchange station are started to be charged, and the charging module 53 starts to operate, so that the battery, the charging pile 57 and the charging module 53 need to be cooled. Specifically, the compressor 11, the condenser 12, the fan 13, the throttling element 14 and the evaporator 15 can be used for refrigerating, the refrigerating capacity is transmitted into the first water tank and the second heat exchange flow passage of the first heat exchanger, the cooled medium passes through the first water tank and then passes through the second heat exchange flow passage, and the first water tank can be used for cooling the battery through the battery compartment cooling pipeline 43. The second heat exchange flow passage can transfer cold to the first cooling flow passage, and the first cooling flow passage, the second water tank 51 and the charging module cooling pipeline 54 are in circulation communication, so that the charging module 53 can be cooled. The second water tank 51 is in circulating communication with the charging pile heat exchange pipeline 571, the second heat exchanger 55 is used for transmitting the cold energy in the charging pile heat exchange pipeline 571 into the charging pile cooling pipeline 572, and the fifth water pump 58 is used for realizing the circulation of the medium in the charging pile cooling pipeline 572, so that the temperature of the charging pile 57 is reduced.
In another possible operation mode, when the charging of the battery in the charging station and the charging pile 57 is started, and the charging module 53 starts to operate, firstly, the medium in the first water tank cools the battery through the battery compartment cooling pipeline 43, and the temperature of the medium in the first water tank increases. At the same time, the second water tank 51 is respectively in circulation communication with the charging module cooling pipeline 54 and the charging pile cooling pipeline 572, so that the temperature of the medium in the second water tank 51 is increased while the charging module 53 and the charging pile 57 are cooled. And through the first heat exchanger, the temperature in the first water tank and the temperature in the second water tank 51 tend to be equal, and when the temperature in the first water tank is higher than the temperature capable of cooling the battery, the refrigeration cycle 1 is started, and the temperature of the first water tank and the first heat exchanger is reduced through the refrigeration cycle 1.
In another possible operation, the first water tank may maintain the temperature required for battery charging by the waste heat of the electric heater 45 and the charging module 53 in a low temperature environment. Specifically, first, the heat generated by the battery during the charging process can be circulated by the battery compartment cooling cycle 4; secondly, the heat generated by the charging module 53 and the charging pile 57 is conducted to the second water tank 51 through the charging module cooling pipeline 54 and the charging pile heat exchange pipeline 571, and then is communicated with the first water tank through the first heat exchanger, so that the temperature in the second water tank 51 can be transmitted into the first water tank, namely, the temperature in the charging module 53 is transmitted into the first water tank relatively, and waste heat utilization is achieved. When the temperature inside the charging module 53 is not able to complete the heating of the battery compartment 42, the battery compartment 42 is heated by the electric heater 45.
The invention also provides a charging and exchanging station, which comprises the thermal management system of the charging and exchanging station. Therefore, the charging and replacing station can control different temperatures at different positions, meanwhile, the valve for controlling the temperatures at different positions in the prior art is saved, the cold energy can be utilized to the greatest extent, and the energy consumption of the charging and replacing station is reduced.
Those skilled in the art will appreciate that while some embodiments herein include some features but not others included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the present application and form different embodiments. For example, in the claims of the present application, any of the claimed embodiments may be used in any combination.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will fall within the scope of the present invention.
Claims (10)
1. The heat management system of the charging and exchanging station is characterized by comprising a refrigeration cycle, a battery compartment cooling cycle and a charging and cooling cycle;
the refrigeration cycle comprises an evaporator, the battery compartment cooling cycle comprises a first heat exchange component, the charging cooling cycle comprises a second heat exchange component, and the evaporator, the first heat exchange component and the second heat exchange component are in cycle communication through a cycle heat exchange pipeline;
wherein the refrigeration cycle is configured to provide refrigeration to the first heat exchange member and the second heat exchange member;
the battery compartment cooling cycle is configured to at least enable use of the cold in the first heat exchange member for cooling the battery within the battery compartment;
the charge cooling cycle is arranged to be able to use at least the cold in the second heat exchange part for cooling the charging module and/or the charging pile.
2. The charging and exchange station thermal management system according to claim 1, wherein the refrigeration cycle includes a compressor, a condenser, a fan, a throttling element, and the evaporator;
the evaporator is internally provided with a refrigerant flow passage and a first heat exchange flow passage which can exchange heat with each other, and the compressor, the condenser and the throttling element are circularly communicated with the refrigerant flow passage through a refrigerant pipeline; the first heat exchange flow passage is in circulation communication with the first heat exchange component and the second heat exchange component.
3. The thermal management system of a charging and exchange station according to claim 2, wherein the number of fans is two.
4. The charging and heat exchange station thermal management system according to claim 2, wherein the number of compressors and throttling elements is two, each of the compressors and corresponding throttling elements being independently in circulating communication with the condenser and the refrigerant flow passage through a refrigerant line.
5. The thermal management system of a charging and heat exchange station of claim 2, wherein the first heat exchange flow passage, the first heat exchange member, and the second heat exchange member are in communication in sequence.
6. The thermal management system of a charging and heat exchange station according to claim 1, wherein a first water pump is provided on the circulation heat exchange circuit.
7. The thermal management system of a charging and heat exchange station of claim 1, wherein the first heat exchange component is a first water tank.
8. The thermal management system of a charging and exchange station of claim 7, wherein the battery compartment cooling circuit further comprises a battery compartment cooling circuit in circulating communication with the first water tank and a second water pump disposed in the battery compartment cooling circuit.
9. The thermal management system of a charging and exchange station according to claim 8, wherein the number of said battery compartment cooling pipes is plural, and one said second water pump is provided on each said battery compartment cooling pipe.
10. The thermal management system of a charging and heat exchange station according to claim 1, wherein the second heat exchange member is a first heat exchanger having formed therein a second heat exchange flow passage and a first cooling flow passage that are heat exchangeable with each other, the second heat exchange flow passage being in circulation communication with the evaporator and the first heat exchange member.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310449780.7A CN116424125A (en) | 2023-04-23 | 2023-04-23 | Heat management system of charging and replacing station and charging and replacing station |
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| CN202310449780.7A CN116424125A (en) | 2023-04-23 | 2023-04-23 | Heat management system of charging and replacing station and charging and replacing station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117183786A (en) * | 2023-11-07 | 2023-12-08 | 国创移动能源创新中心(江苏)有限公司 | Liquid cooling system of charging pile, control method and control device thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117183786A (en) * | 2023-11-07 | 2023-12-08 | 国创移动能源创新中心(江苏)有限公司 | Liquid cooling system of charging pile, control method and control device thereof |
| CN117183786B (en) * | 2023-11-07 | 2024-03-22 | 国创移动能源创新中心(江苏)有限公司 | Liquid cooling system of charging pile, control method and control device thereof |
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