CN110774857A - Battery compartment heat dissipation and cold energy utilization system and new forms of energy bus - Google Patents
Battery compartment heat dissipation and cold energy utilization system and new forms of energy bus Download PDFInfo
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- CN110774857A CN110774857A CN201910945118.4A CN201910945118A CN110774857A CN 110774857 A CN110774857 A CN 110774857A CN 201910945118 A CN201910945118 A CN 201910945118A CN 110774857 A CN110774857 A CN 110774857A
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 77
- 238000003860 storage Methods 0.000 claims abstract description 44
- 238000009833 condensation Methods 0.000 claims abstract description 28
- 230000005494 condensation Effects 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims description 22
- 238000001514 detection method Methods 0.000 claims description 11
- 239000000523 sample Substances 0.000 claims description 5
- 239000002699 waste material Substances 0.000 abstract description 10
- 238000009825 accumulation Methods 0.000 abstract description 5
- 108010066057 cabin-1 Proteins 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 238000002485 combustion reaction Methods 0.000 description 5
- 230000002269 spontaneous effect Effects 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 230000001172 regenerating effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00321—Heat exchangers for air-conditioning devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
-
- 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
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Transportation (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to a battery compartment heat dissipation and cold energy utilization system which comprises a battery compartment, a cold accumulation type heat exchanger and a condensation drainage pipeline. The cold storage type heat exchanger comprises a heat exchanger positioned in the battery compartment; and the condensation drainage pipeline is communicated with the cold accumulation type heat exchanger and is used for collecting condensed water discharged by the bus air conditioner. The battery compartment heat dissipation and cold energy utilization system provided by the invention is convenient for heat dissipation of the battery compartment, reduces the temperature of the battery compartment, realizes storage of bus air conditioner condensate water, reuse of waste cold energy and improvement of the safety performance of a battery module, further prolongs the service life of the battery module and improves the energy utilization efficiency of a bus; still provide a new forms of energy bus that has this battery compartment heat dissipation and cold energy utilization system.
Description
Technical Field
The invention relates to the technical field of new energy buses, in particular to a battery compartment heat dissipation and cold energy utilization system; still relate to a new forms of energy bus that has this battery compartment heat dissipation and cold energy utilization system.
Background
At present, the heat dissipation mode of a battery compartment of the new-energy electric bus is mainly air cooling, namely heat dissipation is performed through a grid on a battery compartment cover plate on the side face. Due to the closed structure of the battery compartment, a smooth heat dissipation channel cannot be formed in the battery compartment, and heat dissipation is mainly achieved through natural convection. However, the heat dissipation method has poor effect, and the average temperature of the battery compartments at different positions of the automobile is different. The temperature of the rear battery compartment is usually the highest, up to 45 ℃, mainly because a plurality of battery boxes are arranged in the rear battery compartment; and the heating source is more, including battery box, circuit controller, compressed air etc.. When the electric bus runs in high-temperature weather, the high-temperature early warning is easily reported to the rear battery compartment. For the vehicle type with unreasonable arrangement of the heat dissipation grating, the battery compartment can also give a high-temperature alarm in cold winter.
The heat in the battery compartment mainly comes from the heat dissipation of the battery, and the heat generated by the battery is transferred to the outside of the battery compartment (i.e. in the battery compartment) through an air flow channel and a fan in the battery compartment. The heat in the battery compartment is dissipated through the grids of the cover plate of the battery compartment, the grids on the compartment plate are always in the horizontal direction, but the horizontal grids are not beneficial to dissipating the heat. At present, part of the battery boxes with better reliability can use vertical grids, and the structure is favorable for heat dissipation of the battery compartment. However, the vertical grill can be used only for an electric vehicle using a battery box having a good safety performance, and can be used only for battery compartments on the left and right sides, and cannot be used for a battery compartment on the rear side. Therefore, the optimization of the grid structure cannot completely solve the problem of overhigh temperature of the battery compartment of the bus.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provides a battery compartment heat dissipation and cold energy utilization system which is convenient for heat dissipation of a battery compartment, reduces the temperature of the battery compartment, realizes storage of bus air conditioner condensate water, reuse of waste cold energy and improvement of the safety performance of a battery module, further prolongs the service life of the battery module and improves the energy utilization efficiency of a bus; still provide a new forms of energy bus that has this battery compartment heat dissipation and cold energy utilization system.
In order to achieve the purpose, the invention adopts the following scheme:
a battery compartment heat dissipation and cold energy utilization system comprises a battery compartment; further comprising:
a cold storage heat exchanger including a heat exchanger located within the battery compartment;
and the condensation drainage pipeline is communicated with the cold storage type heat exchanger and is used for communicating condensed water discharged by the bus air conditioner.
Further, the cold storage heat exchanger further comprises:
the water inlet end of the reservoir is communicated with the condensation drainage pipeline;
the water inlet valve is communicated between the condensation drainage pipeline and the water inlet end of the reservoir;
the heat exchanger is communicated with the water outlet end of the storage battery and is positioned in the battery cabin.
Further, still include:
the first electromagnetic valve is arranged between the water outlet end of the storage battery and the heat exchanger;
the second electromagnetic valve is arranged on the water outlet end of the heat exchanger;
the high-level liquid level meter is arranged at the water inlet front end of the heat exchanger and is positioned behind the first electromagnetic valve;
and the low level liquid level meter is arranged at the rear water outlet end of the heat exchanger and is positioned in front of the second electromagnetic valve.
Furthermore, an in-tube temperature detection probe for detecting the temperature of the heat exchanger is arranged in the heat exchanger; an in-cabin temperature detection head for detecting the temperature in the battery cabin is arranged in the battery cabin.
Further, the battery compartment is one of a left front battery compartment, a right front battery compartment, a left middle battery compartment, a right middle battery compartment, a left rear battery compartment, a right rear battery compartment, and a rear battery compartment.
Furthermore, an overflow port is arranged on the water storage tank.
The application still provides a new forms of energy bus, include the automobile body, locate bus air conditioner in the automobile body and as above-mentioned battery compartment heat dissipation and cold energy utilization system.
Further, the heat exchanger has one or more than one; the heat exchanger is formed by arranging and communicating a plurality of heat exchange tubes in a row.
Furthermore, the battery cabin is provided with a plurality of battery modules; the plurality of battery modules are distributed in the battery cabin in a manner of arranging in rows and columns; the heat exchanger is provided with a plurality of heat exchangers, and one or more heat exchangers are distributed on the front part of the battery compartment in a transverse arrangement mode.
Furthermore, the battery cabin is provided with a plurality of battery modules; the batteries are distributed in the battery compartment in a single row; the battery module comprises an air inlet; one or more than one heat exchanger is located at the air inlet side of each battery module. Compared with the prior art, the invention has the following advantages:
1. according to the battery compartment heat dissipation and cold energy utilization system, the battery compartment, the cold storage type heat exchanger and the condensation drainage pipeline are arranged, condensed water discharged by the bus air conditioner enters the cold storage type heat exchanger through the condensation drainage pipeline, the heat exchange between the condensed water and the battery compartment is realized through the heat exchanger, the heat of the battery compartment is continuously taken out of the battery compartment by the condensed water, the safety problems of spontaneous combustion and the like of the electric bus in the high-temperature weather operation and charging process are avoided, the safety of passengers is ensured, the temperature of the battery is reduced, the battery module is prevented from being overheated, and the service life of the battery is prolonged.
2. The battery compartment heat dissipation and cold energy utilization system utilizes the condensed water discharged by the bus air conditioner to exchange heat with the battery compartment through the heat exchanger, so that the storage of the condensed water of the bus air conditioner and the reutilization of waste cold energy are realized, the energy utilization efficiency of a bus is further improved, and the system is energy-saving and environment-friendly.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural view of a battery compartment heat dissipation and cold energy utilization system according to the present invention.
Fig. 2 is a schematic structural view of the new energy bus of the invention.
Fig. 3 is a schematic structural view of arrangement of a heat exchanger in a cell compartment according to example 2 of the present invention.
Fig. 4 is a schematic structural view of arrangement of a heat exchanger in a cell compartment according to example 3 of the present invention.
The figure includes:
the system comprises a battery compartment 1, a left front battery compartment 11, a right front battery compartment 12, a left middle battery compartment 13, a right middle battery compartment 14, a left rear battery compartment 15, a right rear battery compartment 16, a rear battery compartment 17, a cold storage type heat exchanger 2, a heat exchanger 21, a heat exchange tube 211, a reservoir 22, a water inlet valve 23, a condensation and drainage pipeline 3, a front condensation and drainage pipeline 31, a rear condensation and drainage pipeline 32, a first electromagnetic valve 4, a second electromagnetic valve 5, a high level liquid level meter 6, a low level liquid level meter 7, an in-tube temperature detection probe 8, an in-compartment temperature detection head 9, an overflow port 10, a bus air conditioner 20, a vehicle body 30, a central control module 18, a battery module 19, an air inlet 191 and an air outlet 192.
Detailed Description
The invention is further described with reference to the following examples.
Example 1:
referring to fig. 1 to 2, a battery compartment heat dissipation and cold energy utilization system applied to a new energy bus comprises a battery compartment 1, a cold storage type heat exchanger 2 and a condensation drainage pipeline 3. The cold storage type heat exchanger 2 comprises a heat exchanger 21 positioned in the battery compartment 1; the purpose of the cold accumulation type heat exchanger 2 is to improve the utilization rate of cold energy of condensed water; and the condensation drainage pipeline 3 is communicated with the cold accumulation type heat exchanger 2 and is used for communicating condensed water discharged by the bus air conditioner 20. This system is utilized in battery compartment heat dissipation and cold energy is through setting up battery compartment 1, cold-storage heat exchanger 2 and condensation drain line 3, get into cold-storage heat exchanger 2 with the exhaust comdenstion water of bus air conditioner 20 through condensation drain line 3, make the comdenstion water pass through heat exchanger 21 and take place the heat exchange with battery compartment 1, battery compartment 1's heat lasts and is taken out battery compartment 1 by the comdenstion water, safety problems such as the spontaneous combustion of electronic bus in high temperature weather operation and charging process are avoided appearing, guarantee passenger's safety, reduce the temperature of battery simultaneously, avoid the battery overheated, help prolonging the life-span of battery. Meanwhile, the condensed water discharged by the bus air conditioner 20 is subjected to heat exchange with the battery cabin 1 through the heat exchanger 21, so that the storage of the condensed water of the bus air conditioner 20 and the reutilization of waste cold energy are realized, the energy utilization efficiency of the bus is further improved, and the bus air conditioner is energy-saving and environment-friendly.
In this embodiment, the regenerative heat exchanger 2 further includes a heat exchanger 21, a reservoir 22, and a feed valve 23. Wherein, the water inlet end of the reservoir 22 is communicated with the condensation drainage pipeline 3; the reservoir can avoid waste caused by directly discharging the condensed water out of the new energy bus; a water inlet valve 23 is communicated between the condensation drainage pipeline 3 and the water inlet end of the reservoir 22; the heat exchanger 21 is communicated with the water outlet end of the storage battery and is positioned in the battery compartment 1. By opening the water inlet valve 23, the condensed water discharged by the bus air conditioner 20 is discharged into the reservoir 22 through the condensed water discharge pipeline 3, then is discharged into the heat exchanger 21, is subjected to heat exchange with the battery compartment 1, the heat of the battery compartment 1 is continuously taken out of the battery compartment 1 by the condensed water, safety problems such as spontaneous combustion of the electric bus in high-temperature weather operation and charging process are avoided, safety of passengers is guaranteed, meanwhile, the temperature of the battery is reduced, overheating of the battery is avoided, and the service life of the battery is prolonged. Meanwhile, the condensed water discharged by the bus air conditioner 20 is subjected to heat exchange with the battery cabin 1 through the heat exchanger 21, so that the storage of the condensed water of the bus air conditioner 20 and the reutilization of waste cold energy are realized, the energy utilization efficiency of the bus is further improved, and the bus air conditioner is energy-saving and environment-friendly. The inlet valve 23 is a ball valve. The ball valve can be a pneumatic ball valve, an electric ball valve and the like. The battery compartment heat dissipation and cold energy utilization system is mainly applied to new energy buses, and can be applied to trains, ships or airplanes and the like.
The size of the water storage volume of the water storage tank 22 is determined according to the using environment of the bus and the heat production quantity in the battery compartment 1, and when the heat absorption quantity of the bus air conditioner 20 condensed water in the water storage tank 22 rises to 30 ℃, is close to 30% -50% of the heat production quantity of the battery compartment, at this time, the water storage volume of the water storage tank 22 is enough.
Preferably, the reservoir 22 is provided with an overflow port 10. The overflow gap 10 is arranged on the reservoir 22, so that a good overflow prevention effect is achieved, and the phenomenon that the condensate water entering the reservoir 22 flows into the new energy bus due to overfilling is avoided.
The battery compartment heat dissipation and cold energy utilization system further comprises a first electromagnetic valve 4, a second electromagnetic valve 5, a high level liquid level meter 6, a low level liquid level meter 7 and a central control module 18. The first electromagnetic valve 4 is arranged between the water outlet end of the storage battery and the heat exchanger 21 and is used for controlling whether the condensed water of the storage battery flows into the heat exchanger 21 or not; the second electromagnetic valve 5 is arranged on the water outlet end of the heat exchanger 21 and is used for controlling whether condensed water in the heat exchanger 21 is discharged or not; the high-level liquid level meter 6 is arranged at the front end of the water inlet of the heat exchanger 21 and behind the first electromagnetic valve 4; the low level liquid level meter 7 is arranged at the rear end of the water outlet of the heat exchanger 21 and in front of the second electromagnetic valve 5. A temperature detection probe 8 in the tube for detecting the temperature of the heat exchanger 21 is arranged in the heat exchanger 21; an in-cabin temperature detection head 9 for detecting the temperature in the battery cabin 1 is arranged in the battery cabin 1. The central control module 18 is electrically connected with the first electromagnetic valve 4, the second electromagnetic valve 5, the high level liquid level meter 6 and the low level liquid level meter 7 respectively. The central control module 18 is a conventional control unit as a regenerative heat exchanger 2
A control program of the heat dissipation and cold energy utilization system of the tank is recorded by a programmer, and the first electromagnetic valve 4, the second electromagnetic valve 5, the high-level liquid level meter 6 and the low-level liquid level meter 7 are reasonably controlled to be opened or closed through the central control module 18. The temperature detection probe 8 in the pipe and the temperature detection head 9 in the cabin are both temperature sensors.
The condensed water discharged from the bus air conditioner 20 flows into the reservoir 22 through the condensate drain line 3. When the temperature of the battery compartment 1 is higher than 35 ℃ in the running process of the vehicle, opening the first electromagnetic valve 4 and closing the second electromagnetic valve 5; when the liquid level of the high-level liquid level meter 6 is displayed, the first electromagnetic valve 4 is closed, and water is stopped being injected into the heat exchanger 21; when the temperature of the heat exchanger 21 is higher than 30 ℃, the second electromagnetic valve 5 is opened, and condensed water in the heat exchanger 21 is discharged; when the low level liquid level meter 7 has no liquid level signal, the second electromagnetic valve 5 is closed, and the first electromagnetic valve 4 is opened.
When the vehicle stops charging and the temperature of the battery compartment 1 is higher than 30 ℃, the first electromagnetic valve 4 is opened, and the second electromagnetic valve 5 is closed; when the liquid level of the high-level liquid level meter 6 is displayed, the first electromagnetic valve 4 is closed, and water is stopped being injected into the heat exchanger 21; when the temperature of the heat exchanger 21 is higher than 35 ℃, the second electromagnetic valve 5 is opened, and the condensed water in the heat exchanger 21 is discharged; when the low level liquid level meter 7 has no liquid level signal, the second electromagnetic valve 5 is closed, and the first electromagnetic valve 4 is opened.
The system stops when the vehicle is driven and charged in a low environment. When the temperature value displayed by the temperature detection head 9 in the cabin is lower than 5 ℃, the water in the cold-storage heat exchanger 2 is discharged completely.
In the present embodiment, the heat exchanger 21 is a copper pipe or an aluminum pipe. Because the heat exchanger 21 is arranged in the battery compartment 1, the heat exchanger must have good safety performance, and the heat conductivity coefficient of the manufacturing material is high and has certain hardness. And copper pipes or aluminum pipes are used as the heat exchanger 21, which is beneficial to improving the heat conductivity coefficient of heat exchange and has good strength and hardness.
Of course, the design of the battery compartment heat dissipation and cold energy utilization system should also take into account the drainage performance of the bus air conditioner 20 of the bus, and should avoid the condensed water of the bus air conditioner 20 from leaking into the air outlet of the bus air conditioner 20 in the passenger compartment.
In the present embodiment, the heat exchanger 21 has one or more than one; the heat exchanger 21 is composed of a plurality of heat exchange tubes 211 which are arranged and communicated to form a row. Form one row through arranging many heat exchange tubes 211, help increasing the area occupied of heat exchanger 21 in the battery compartment, help strengthening the energy between heat exchanger 21 and the battery compartment 1 and take place the heat exchange, realize the storage of bus air conditioner 20 comdenstion water, abandonment cold energy recycle, and then promote bus energy utilization efficiency, energy-concerving and environment-protective. Of course, in certain embodiments, the heat exchanger 21 is comprised of heat exchange tubes 211 and fins; the number of the fins can be one or more than one, and the one or more than one fins are arranged on the heat exchange tube 211; the number of the heat exchange tubes 211 may be one or more; if the number of the heat exchange tubes 211 can be multiple, the multiple heat exchange tubes 211 are arranged in a row. Through the heat exchange tubes 211 and the fins, and the number and arrangement of the heat exchange tubes 211, the energy generation heat exchange between the reinforced heat exchanger 21 and the battery compartment 1 is enhanced, the storage of the condensate water of the bus air conditioner 20 and the reutilization of waste cold energy are realized, the energy utilization efficiency of the bus is further improved, and the bus heat exchanger is energy-saving and environment-friendly.
The application also discloses a new forms of energy bus, including automobile body 30, locate bus air conditioner 20 in the automobile body 30 and as aforesaid battery compartment heat dissipation and cold energy utilization system. Through the combination of the bus air conditioner and the battery compartment heat dissipation and cold energy utilization system, the safety problems such as spontaneous combustion of the electric bus in the high-temperature weather operation and charging process can be avoided, the safety of passengers is guaranteed, the temperature of the battery is reduced, the overheating of the battery module 19 is avoided, and the service life of the battery module 19 is prolonged. Meanwhile, the condensed water discharged by the bus air conditioner 20 is subjected to heat exchange with the battery cabin 1 through the heat exchanger 21, so that the storage of the condensed water of the bus air conditioner 20 and the reutilization of waste cold energy are realized, the energy utilization efficiency of the bus is further improved, and the bus air conditioner is energy-saving and environment-friendly.
The battery compartment 1 is one of a left front battery compartment 11, a right front battery compartment 12, a left middle battery compartment 13, a right middle battery compartment 14, a left rear battery compartment 15, a right rear battery compartment 16 and a rear battery compartment 17. The water outlet of the bus air conditioner 20 is communicated with the cold storage type heat exchanger 2 through the condensation drainage pipeline 3; the condensation drain line 3 includes a front condensation drain line 31 and a rear condensation drain line 32.
If the battery compartment 1 is a rear battery compartment 17, the battery compartment is correspondingly arranged at the rear tail of the new energy bus; the heat exchanger 21 of the regenerative heat exchanger 2 is arranged in the rear battery compartment 17, and the bus air conditioner 20 is communicated with the reservoir 22 of the regenerative heat exchanger 2 through a rear condensation drainage pipeline 32. The cold storage type heat exchanger 2 is arranged in a battery cabin 17 at the rear side of the new energy electric bus, so that the fault rate and the high temperature alarm rate of a battery module 19 of the bus are greatly reduced, and even the requirement of the bus on the IP grade of the battery module 19 is reduced.
If the battery compartment 1 is a left rear battery compartment 15 or a right rear battery compartment 16, the battery compartment is correspondingly arranged on the rear side of the new energy bus; the heat exchanger 21 of the cold storage type heat exchanger 2 is arranged in the left rear side battery compartment 15 or the right rear side battery compartment 16; the bus air conditioner 20 is communicated with the reservoir 22 of the cold storage heat exchanger 2 through a rear condensation drain line 32.
If the battery compartment 1 is a left front battery compartment 11 or a right front battery compartment 12; the device is correspondingly arranged on the front side of the new energy bus; the heat exchanger 21 of the cold storage type heat exchanger 2 is arranged in the left front battery compartment 11 or the right front battery compartment 12; the bus air conditioner 20 is communicated with the reservoir 22 of the cold storage heat exchanger 2 through a front condensation drain line 31.
If the battery compartment 1 is a left middle battery compartment 13 or a right middle battery compartment 14, the battery compartment is correspondingly arranged on the middle side of the new energy bus; the heat exchanger 21 of the cold accumulation type heat exchanger 2 is respectively arranged in the left middle battery compartment 13 or the right middle battery compartment 14; the bus air conditioner 20 is communicated with the reservoir 22 of the cold storage heat exchanger 2 through a front condensation water discharge pipeline 31 or a rear condensation water discharge pipeline 32.
Through setting up the position of battery cabin 1, the realization is combined together through heat dissipation of bus air conditioner 20 and battery cabin and cold energy utilization system, can avoid appearing safety problems such as the spontaneous combustion of electronic bus in high temperature weather operation and charging process, guarantees passenger's safety, reduces battery module 19's temperature simultaneously, avoids battery module 19 overheated, helps prolonging battery module 19's life-span. Meanwhile, the condensed water discharged by the bus air conditioner 20 is subjected to heat exchange with the battery cabin 1 through the heat exchanger 21, so that the storage of the condensed water of the bus air conditioner 20 and the reutilization of waste cold energy are realized, the energy utilization efficiency of the bus is further improved, and the bus air conditioner is energy-saving and environment-friendly.
Example 2:
in this embodiment 2, the system for heat dissipation and cold energy utilization of the battery compartment of this embodiment is substantially the same as that of embodiment 1, except that, as shown in fig. 3, the attached drawing looks toward the front of the vehicle relative to the rear of the vehicle; the battery cabin is provided with a plurality of battery modules 19; the plurality of battery modules 19 are arranged in rows and columns in the battery compartment; the heat exchanger is provided with a plurality of heat exchangers, and one or more heat exchangers are distributed on the front part of the battery compartment in a transverse arrangement mode. The battery module 19 with a plurality of rows and a plurality of columns arranged in the battery compartment 1 is generally arranged in a larger space of the battery compartment 1, and the number of the battery modules 19 to be arranged is larger, and can be 4, 6, 8, etc. The battery compartment is generally a rear battery compartment 17 because the space on the rear side of the new energy bus is large. Through distributing these 19 multirow multiseriate ranks of battery module, the anterior temperature of battery cabin 1 bottom is higher, and the heat is more, distributes many through horizontal arrangement on the front portion of battery cabin 1 heat exchanger 21 helps the inside cooling of battery cabin 1, realizes the abandonment cold energy of bus air conditioner 20's comdenstion water and recycles, and then promotes bus energy utilization efficiency, energy-concerving and environment-protective. Of course, it is also possible to detect the temperature of the battery compartment by a temperature sensor, determine that the temperature in the battery compartment 1 is higher, and distribute the plurality of heat exchangers 21 near the higher temperature in the battery compartment.
Example 3:
in this embodiment 3, the heat dissipation and cold energy utilization system of the battery compartment of this embodiment is substantially the same as that of embodiment 1, except that, as shown in fig. 4, the battery compartment is provided with a plurality of battery modules 19; the batteries are distributed in the battery compartment in a single row; the battery module 19 comprises an air inlet; one or more than one heat exchanger is positioned at the air inlet side of each battery module 19. The battery modules 19 are arranged in the battery compartment 1 in a single row, and the space of the battery compartment 1 is generally small, such as a left front battery compartment 11, a right front battery compartment 12, a left middle battery compartment 13, a right middle battery compartment 14, a left rear battery compartment 15 and a right rear battery compartment 16; the number of the placed batteries is small; the number of the cells may be 2, 3, or 1. The battery comprises an air inlet 191 and an air outlet 192, and one or more than one heat exchanger is distributed on one side of the air inlet 191 of the battery module 19, so that heat exchange and cooling on one side of the air inlet 191 of the battery module 19 are facilitated, and the cooling of the battery module 19 is facilitated; the recycling of the waste cold energy of the condensate water of the bus air conditioner 20 is realized, the energy utilization efficiency of the bus is further improved, and the bus air conditioner is energy-saving and environment-friendly.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the protection scope of the present application, and although the present application is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present application without departing from the spirit and scope of the technical solutions of the present application.
Claims (10)
1. A battery compartment heat dissipation and cold energy utilization system comprises a battery compartment; it is characterized by also comprising:
a cold storage heat exchanger including a heat exchanger located within the battery compartment;
and the condensation drainage pipeline is communicated with the cold storage type heat exchanger and is used for communicating condensed water discharged by the bus air conditioner.
2. The battery compartment heat dissipation and cold energy utilization system of claim 1, wherein the cold storage heat exchanger further comprises:
the water inlet end of the reservoir is communicated with the condensation drainage pipeline;
the water inlet valve is communicated between the condensation drainage pipeline and the water inlet end of the reservoir;
the heat exchanger is communicated with the water outlet end of the storage battery and is positioned in the battery cabin.
3. The battery compartment heat and cold energy utilization system of claim 2, further comprising:
the first electromagnetic valve is arranged between the water outlet end of the storage battery and the heat exchanger;
the second electromagnetic valve is arranged on the water outlet end of the heat exchanger;
the high-level liquid level meter is arranged at the water inlet front end of the heat exchanger and is positioned behind the first electromagnetic valve;
and the low level liquid level meter is arranged at the rear water outlet end of the heat exchanger and is positioned in front of the second electromagnetic valve.
4. The battery compartment heat and cold energy utilization system according to claim 1, wherein an in-tube temperature detection probe is provided in the heat exchanger for detecting a temperature of the heat exchanger; an in-cabin temperature detection head for detecting the temperature in the battery cabin is arranged in the battery cabin.
5. The battery compartment heat and cold energy utilization system according to claim 1, wherein the battery compartment is one of a left front battery compartment, a right front battery compartment, a left middle battery compartment, a right middle battery compartment, a left rear battery compartment, a right rear battery compartment, and a rear battery compartment.
6. The battery compartment heat and cold energy utilization system according to claim 2, wherein the reservoir is provided with a weir.
7. A new energy bus is characterized by comprising a bus body, a bus air conditioner arranged in the bus body and the battery compartment heat dissipation and cold energy utilization system according to any one of claims 1 to 6.
8. The new energy bus as claimed in claim 7, wherein the heat exchanger has one or more than one; the heat exchanger is formed by arranging and communicating a plurality of heat exchange tubes in a row.
9. The new energy bus as claimed in claim 8, wherein the battery compartment is provided with a plurality of battery modules; the plurality of battery modules are distributed in the battery cabin in a manner of arranging in rows and columns; the heat exchanger is provided with a plurality of heat exchangers, and one or more heat exchangers are distributed on the front part of the battery compartment in a transverse arrangement mode.
10. The new energy bus as claimed in claim 8, wherein the battery compartment is provided with a plurality of battery modules; the plurality of battery modules are distributed in the battery cabin in a single row; the battery module comprises an air inlet; one or more than one heat exchanger is located at the air inlet side of each battery module.
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| CN114267903A (en) * | 2021-12-21 | 2022-04-01 | 珠海格力电器股份有限公司 | Battery cooling system and vehicle with same |
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