CN108807768B - Active heat dissipation lithium battery box - Google Patents
Active heat dissipation lithium battery box Download PDFInfo
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- CN108807768B CN108807768B CN201810672395.8A CN201810672395A CN108807768B CN 108807768 B CN108807768 B CN 108807768B CN 201810672395 A CN201810672395 A CN 201810672395A CN 108807768 B CN108807768 B CN 108807768B
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- Prior art keywords
- lithium battery
- way reversing
- reversing valve
- semiconductor
- cooling device
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- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 66
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 22
- 238000001816 cooling Methods 0.000 claims abstract description 64
- 239000004065 semiconductor Substances 0.000 claims abstract description 41
- 239000003921 oil Substances 0.000 claims abstract description 31
- 239000002480 mineral oil Substances 0.000 claims abstract description 7
- 235000010446 mineral oil Nutrition 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims description 31
- 238000001514 detection method Methods 0.000 claims description 23
- 238000012544 monitoring process Methods 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 11
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 229910000838 Al alloy Inorganic materials 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims 1
- 230000002349 favourable effect Effects 0.000 claims 1
- 238000012806 monitoring device Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 10
- 229910052802 copper Inorganic materials 0.000 description 10
- 239000010949 copper Substances 0.000 description 10
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 238000007599 discharging Methods 0.000 description 6
- 239000011810 insulating material Substances 0.000 description 6
- 239000000956 alloy Substances 0.000 description 5
- 229920000742 Cotton Polymers 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- -1 polytetrafluoroethylene Polymers 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 229910000733 Li alloy Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000001989 lithium alloy Substances 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 239000011255 nonaqueous electrolyte Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6563—Gases with forced flow, e.g. by blowers
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention aims to provide an active heat dissipation lithium battery box, which is characterized in that a battery is placed in insulating mineral oil, the temperature is monitored in real time through a temperature monitoring device, and a cooling system does not work during normal times, so that the battery can dissipate heat automatically; when the temperature of the battery is too high, the heat pump system is started, and heat is dissipated through oil cooling; when the oil cooling can not radiate heat, the semiconductor refrigerating system is started, and the requirement of system cooling is achieved by directly cooling mineral oil.
Description
Technical Field
The invention relates to a lithium battery, in particular to an active heat dissipation lithium battery box.
Background
Lithium batteries are a type of battery using a nonaqueous electrolyte solution with lithium metal or a lithium alloy as a negative electrode material. Lithium batteries can be broadly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium ion batteries do not contain lithium in the metallic state and are rechargeable. Lithium ion batteries generally use lithium alloy metal oxides as positive electrode materials, graphite as negative electrode materials, and nonaqueous electrolytes. As the capacity of lithium batteries increases, the problem of heat dissipation becomes increasingly difficult, and the existing lithium batteries conduct heat from two ends of the batteries through a metal center pillar, but the heat dissipation efficiency is not high. And the charging current is too large, so that the temperature is too high, the battery can be damaged, explosion can be caused, and potential safety hazards are caused.
The capacity of the lithium iron phosphate power battery monomer adopted by the current new energy automobile is very large (300A/h; 400A/h; 600A/h), and as the internal structure is laminated, the middle heat cannot be dissipated and the internal electrolyte cannot be run for a long time, so that the internal electrolyte is dried up, short-circuited and expanded until the explosion is caused, and the safe running of the electric automobile is threatened. The problem of group installation is more, and a set of battery cell is installed in the automobile body in series, fixes with the frame, and battery and wiring all expose outside.
Firstly, the battery is electrified by external factors which are unavoidable in the operation of the vehicle, and accidents such as arc, spark, fire and explosion are caused. Seriously threatens personal safety. Secondly, the batteries are dependent together, and heat of the batteries cannot be emitted, so that electrolyte is easy to dry, short-circuit and expand until the batteries are ignited and exploded. Also seriously threatens personal safety. Thirdly, in the operation of the vehicle, once an impact accident occurs, if the steel-structured vehicle body is communicated with the battery due to the accident, the whole vehicle body is a 320V-voltage electrified body, and the electrified body is also a serious hidden danger of personal safety, so that a solution of the battery with high-efficiency heat dissipation is urgently needed.
Disclosure of Invention
The invention aims to provide an active heat dissipation lithium battery box, which is characterized in that a battery is placed in insulating mineral oil, the temperature is monitored in real time through a temperature monitoring device, and a cooling system does not work during normal times, so that the battery can dissipate heat automatically; when the temperature of the battery is too high, the heat pump system is started, and heat is dissipated through oil cooling; when the oil cooling can not radiate heat, the semiconductor refrigerating system is started, and the requirement of system cooling is achieved by directly cooling mineral oil.
In order to solve the problems existing in the background art, the technical scheme of the invention is as follows:
an actively radiating lithium battery box comprises a cooling device, and is characterized in that the cooling device comprises a heat pump system and a semiconductor cooling system, wherein the heat pump system comprises a battery, and the battery is placed in an oil storage box filled with mineral oil; the heat pump system further comprises an oil storage tank, an evaporator, an expansion valve, an oil pump, a throttle valve, a liquid storage device, a condenser, a four-way reversing valve, a compressor, a gas-liquid separator and a reverse control all-in-one machine which are connected in sequence in a sealing way through a pipeline, wherein a monitoring system is arranged in the oil storage tank; the outlet of the compressor is connected with the port A of the four-way reversing valve, the port B of the four-way reversing valve is connected with the inlet of the condensing system, the outlet of the condensing system is connected with the inlet of the liquid storage device, the outlet of the liquid storage device is connected with the throttle valve, the throttle valve is connected with the pipeline inlet of the evaporator, the outlet of the pipeline of the evaporator is communicated with the port C of the four-way reversing valve, the port D of the four-way reversing valve is communicated with the inlet of the gas-liquid separator, and the outlet of the gas-liquid separator is communicated with the inlet of the compressor; the condensing system includes a condenser; the evaporator is a coil pipe and is arranged in the oil storage tank; the output port of the compressor is connected with the input end of the four-way reversing valve, the output end of the four-way reversing valve is connected with the gas-liquid separator, the third output end of the four-way reversing valve is connected with the input end of the compressor, the connecting pipelines of the gas-liquid separator are respectively provided with a throttle valve, and meanwhile, the formulated position of the pipeline is provided with an expansion valve; the semiconductor cooling system comprises a cold end, a hot end, a semiconductor and an air cooling device; the cold end is closely connected with the bottom of the oil storage tank; the semiconductor is N-well and P-well semiconductor and is vertically arranged in the middle of the cold end and the hot end, the air cooling device comprises a box body, a top cover and a side cover and is arranged under the hot end, and the semiconductor cooling system is connected with the anode and the cathode of the lithium battery.
Further, in the above technical solution, the air cooling device includes: the lithium battery heat-dissipating device comprises a lithium battery, a bottom plate and a top cover, wherein the bottom plate is arranged on the bottom plate, the top cover is arranged on the bottom plate, an air inlet is formed in the middle of the bottom plate, air outlets are formed in the two ends of the top cover, a fan is fixedly arranged at the middle of the top cover, the fan is connected with the anode and the cathode of the lithium battery, heat dissipation is carried out on the semiconductor heat end, and air outlets are formed in the two sides of the bottom plate, and the air inlet is formed in the middle of the bottom plate.
In the above technical scheme, the monitoring system includes a lithium battery monitoring unit, a current detection module, a total voltage detection module, a microcontroller, a switch driving module, a temperature sensor, a displacement sensor, and an alarm module, wherein the lithium battery monitoring unit, the current detection module, the total voltage detection module, the switch driving module, the temperature sensor, the displacement sensor, and the alarm module are all electrically connected with the microcontroller; the lithium battery is provided with a Zigbee wireless communication module.
Furthermore, in the above technical scheme, the evaporator is a pressure tube type liquid cooling tube, the liquid cooling tube is made of an alloy material, preferably an aluminum alloy plate and a copper tube, the copper tube is deeply buried in the aluminum alloy plate, and a condensation working medium in the copper tube is R410A, preferably a mixed solution of water and ethylene glycol. The lithium battery box capable of actively radiating heat further comprises radiating fins, wherein the radiating fins are made of alloy materials, flow channels for cooling liquid to circulate are arranged in the radiating fins, the diameter of each flow channel is 3-5mm, the flow channels are vertically arranged, and cooling flows from top to bottom.
Furthermore, in the above technical solution, the semiconductor heat dissipation device is provided with an air duct, and the air duct is located right below the hot end of the semiconductor cooling system.
Furthermore, in the above technical solution, the side cover is uniformly provided with blowholes, and the blowholes are circular.
In the above technical scheme, further, an N-type semiconductor and a P-type semiconductor are vertically installed between the cold end and the hot end.
In the above technical solution, the semiconductor cooling system is connected to the anode and the cathode of the lithium battery.
In the above technical scheme, the total voltage detection module is connected with the lithium battery to detect the working voltage of the lithium battery during charging and discharging, the current detection module is connected with the lithium battery to detect the working current of the lithium battery pack during charging and discharging, and the microcontroller transmits a signal to the switch driving module when the voltage detection module detects that the voltage reaches 55V during charging, and the switch driving module turns off the power charging switch; the alarm module comprises an alarm lamp and an alarm flute.
Furthermore, in the above technical scheme, the temperature sensor is installed in the battery box and connected with the lithium battery, the temperature sensor is electrically connected with the microcontroller, the microcontroller is electrically connected with the switch driving module and the alarm module, and when the temperature of the temperature sensor is higher than 50 ℃, the temperature sensor starts oil cooling; when the temperature of the temperature sensor is higher than 60 ℃, the microcontroller transmits signals to the switch driving module and the alarm module, the alarm module gives out alarm whistle when the alarm lamp is on, and the semiconductor cooling device is started, and when the temperature of the temperature sensor is higher than 70 ℃, the switch driving module cuts off power supply of the power supply.
Furthermore, in the above technical scheme, the lithium battery is provided with a Zigbee wireless communication module, and the Zigbee wireless communication module is connected with the microprocessor displacement sensor and the alarm module.
Furthermore, in the above technical scheme, the top cover is made of an insulating material, the side panels are made of heat-conducting and heat-expandable plates, the insulating material is polytetrafluoroethylene, the heat-conducting and heat-expandable plates are silicon substrates, and the bottom plates are made of high silica cotton.
Compared with the prior art, the invention has the beneficial effects that: 1. the active heat dissipation system can maximally cool the battery and prevent accidents. 2. The temperature sensor and the monitoring system are matched, so that the state of the lithium battery can be known in time, the safety is higher, and the use effect is better;
drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a semiconductor cooling device according to the present invention;
FIG. 3 is a schematic diagram of a heat sink according to the present invention;
FIG. 4 is a schematic view of a four-way reversing valve of the present invention;
fig. 5 is a schematic view of the evaporator structure of the present invention.
Detailed Description
The invention will be described in further detail below with reference to the drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1:
as shown in fig. 1, a lithium battery box with active heat dissipation comprises a cooling device, and is characterized in that the cooling device comprises a heat pump system and a semiconductor cooling system, the heat pump system comprises a battery (1), and the battery (1) is placed in an oil storage tank (3) filled with mineral oil (16); the heat pump system further comprises an oil storage tank 3, an evaporator 2, an expansion valve 14, an oil pump 13, a throttle valve 12, a liquid storage tank 11, a condenser 10, a four-way reversing valve 9, a compressor 8, a gas-liquid separator 7 and a reverse control integrated machine 15 which are connected in sequence in a sealing way through pipelines, wherein a monitoring system is arranged in the oil storage tank 3; the outlet of the compressor 8 is connected with the port A of the four-way reversing valve 9, the port B of the four-way reversing valve 9 is connected with the inlet of a condensing system, the outlet of the condensing system is connected with the inlet of a liquid storage device 11, the outlet of the liquid storage device 11 is connected with a throttle valve 12, the throttle valve 12 is connected with the inlet of a pipeline of the evaporator 2, the outlet of the pipeline of the evaporator 2 is communicated with the port C of the four-way reversing valve 9, the port D of the four-way reversing valve 9 is communicated with the inlet of the gas-liquid separator 7, and the outlet of the gas-liquid separator 7 is communicated with the inlet of the compressor 8; the condensing system comprises a condenser 10; the evaporator 2 is a coil pipe and is arranged in the oil storage tank 3; the output port of the compressor 8 is connected with the input end of a four-way reversing valve 9, the output end of the four-way reversing valve 9 is connected with a gas-liquid separator 7, the third output end of the four-way reversing valve 9 is connected with the input end of the compressor 8, throttle valves 12 are respectively arranged on connecting pipelines of the gas-liquid separator 7, and an expansion valve 14 is arranged at a formulated position of the pipeline; the semiconductor cooling system comprises a cold end (4), a hot end 5, an air cooling device and a semiconductor; the cold end 4 is closely connected with the bottom of the oil storage tank 3; the semiconductor is N-well and P-well semiconductor and is vertically arranged between the cold end (4) and the hot end (5); the air cooling device comprises a box body, a top cover and a side cover, and is arranged right below the hot end; the semiconductor cooling system is connected with the anode and the cathode of the lithium battery.
Further, in the above technical solution, the air cooling device includes: the top cover central part is provided with the air intake, the both ends of top cover are provided with the air outlet, top cover central part fixed mounting has fan 6, fan 6 is connected with lithium cell positive negative pole, dispels the heat of semiconductor cooling device's hot junction 5, the bottom plate both sides are provided with the air outlet, and the central part is provided with the air intake.
In the above technical scheme, the monitoring system includes a lithium battery monitoring unit, a current detection module, a total voltage detection module, a microcontroller, a switch driving module, a temperature sensor, a displacement sensor, and an alarm module, wherein the lithium battery monitoring unit, the current detection module, the total voltage detection module, the switch driving module, the temperature sensor, the displacement sensor, and the alarm module are all electrically connected with the microcontroller; the lithium battery is provided with a Zigbee wireless communication module.
Furthermore, in the above technical solution, the evaporator 2 is a pressure tube type liquid cooling tube, the liquid cooling tube is made of an alloy material, preferably an aluminum alloy plate and a copper tube, the copper tube is deeply buried in the aluminum alloy plate, and the condensation working medium in the copper tube is R410A, preferably a mixed solution of water and ethylene glycol.
The condenser 10 further comprises cooling fins, the cooling fins are made of alloy materials, flow channels for cooling liquid to circulate are arranged in the cooling fins, the diameter of each flow channel is 3-5mm, the flow channels are vertically arranged, and cooling flows from top to bottom.
Furthermore, in the above technical solution, the semiconductor heat dissipation device is provided with an air duct, and the air duct is located right below the hot end of the semiconductor cooling system.
Furthermore, in the above technical solution, the side cover is uniformly provided with blowholes, and the blowholes are circular.
In the above technical solution, an N-type semiconductor and a P-type semiconductor are vertically installed between the cold end 4 and the hot end 5.
In the above technical solution, the semiconductor cooling system is connected to the anode and the cathode of the lithium battery.
In the above technical scheme, the total voltage detection module is connected with the lithium battery to detect the working voltage of the lithium battery during charging and discharging, the current detection module is connected with the lithium battery to detect the working current of the lithium battery pack during charging and discharging, and the microcontroller transmits a signal to the switch driving module when the voltage detection module detects that the voltage reaches 55V during charging, and the switch driving module turns off the power charging switch; the alarm module comprises an alarm lamp and an alarm flute.
Furthermore, in the above technical scheme, the temperature sensor is installed in the oil storage tank 3 and connected with the lithium battery, the temperature sensor is electrically connected with the microcontroller, the microcontroller is electrically connected with the switch driving module and the alarm module, and when the temperature of the temperature sensor is higher than 50 ℃, the temperature sensor starts oil cooling; when the temperature of the temperature sensor is higher than 60 ℃, the microcontroller transmits signals to the switch driving module and the alarm module, the alarm module gives out alarm whistle when the alarm lamp is on, and the semiconductor cooling device is started, and when the temperature of the temperature sensor is higher than 70 ℃, the switch driving module cuts off power supply of the power supply.
Furthermore, in the above technical scheme, the lithium battery is provided with a Zigbee wireless communication module, and the Zigbee wireless communication module is connected with the microprocessor displacement sensor and the alarm module.
Furthermore, in the above technical scheme, the top cover is made of an insulating material, the side panels are made of heat-conducting and heat-expandable plates, the insulating material is polytetrafluoroethylene, the heat-conducting and heat-expandable plates are silicon substrates, and the bottom plates are made of high silica cotton.
Example 2:
as shown in fig. 2, in the active heat dissipation lithium battery box, the side cover of the semiconductor cooling system is uniformly provided with blowing holes, and the blowing holes are circular.
Example 3:
as shown in fig. 3, in the active heat dissipation lithium battery box, the heat dissipation fins are made of alloy, the cross sections of the heat dissipation fins are comb-shaped, heat dissipation grooves are formed at intervals of 30mm, and the heat dissipation fins 22 are vertically attached to the independent coils.
Preferably, the heat sink 22 is an aluminum alloy heat sink, and a copper plate is embedded in the base of the heat sink. Copper has good thermal conductivity, but is expensive, difficult to process, excessive in weight, small in heat capacity and easy to oxidize. The pure aluminum is too soft to be directly used, the aluminum alloy can provide enough hardness, and the aluminum alloy has the advantages of low price and light weight, but the heat conductivity is much poorer than that of copper, so the heat absorption capacity and the heat conduction capacity of the radiating fin are reserved to the greatest extent by combining the pure aluminum and the copper.
Example 4:
the utility model provides a distributed light energy quadruple supply system, the export of compressor 8 is connected port A of cross switching-over valve 9, the entry of condensing system is connected to port B of cross switching-over valve 9, condensing system's exit linkage reservoir 11's entry, the export of reservoir 11 is connected with choke valve 12, choke valve 12 is connected with the pipeline entry of evaporimeter 2, the export of the pipeline of evaporimeter 2 communicates port C of cross switching-over valve 9, the port D of cross switching-over valve 9 communicates the entry of gas-liquid separator 7, the export of gas-liquid separator 7 communicates the entry of compressor 8.
In some embodiments, a distributed optical energy four-combined supply system is provided with an oil pump 13 at one side of the throttle valve 12, and the oil pump 13 is connected with the oil storage tank 3.
Furthermore, in the above technical solution, the throttle valve 12 is an adjustable throttle valve, and the adjustable throttle valve includes a valve needle and a valve core, where the valve needle and the valve core are made of cemented carbide, and the product is designed according to API6A standard, and has wear resistance and flushing resistance.
Example 5:
the utility model provides an initiative radiating lithium cell case, semiconductor heat abstractor is provided with the wind channel, the wind channel is corresponding to be provided with the arc hole, top cap and bottom plate are equipped with the arc hole, the arc hole of the arc hole, top cap, the bottom plate of liquid cooling board corresponds with the wind channel.
Example 6:
the lithium battery box capable of actively radiating heat is characterized in that the total voltage detection module is connected with a lithium battery to detect the working voltage of the lithium battery during charging and discharging, the current detection module is connected with the lithium battery to detect the working current of a lithium battery pack during charging and discharging, and when the voltage detection module detects that the voltage reaches 55V during charging, the microcontroller transmits a signal to the switch driving module, and the switch driving module turns off a power supply charging switch; the alarm module comprises an alarm lamp and an alarm flute.
Example 7:
the lithium battery box capable of actively radiating heat is characterized in that the temperature sensor is arranged in the battery box and connected with a lithium battery, the temperature sensor is electrically connected with the microcontroller, the microcontroller is electrically connected with the switch driving module and the alarm module, and when the temperature of the temperature sensor is higher than 50 ℃, oil cooling is started; when the temperature of the temperature sensor is higher than 60 ℃, the microcontroller transmits signals to the switch driving module and the alarm module, the alarm module gives out alarm whistle when the alarm lamp is on, and the semiconductor cooling device is started, and when the temperature of the temperature sensor is higher than 70 ℃, the switch driving module cuts off power supply of the power supply.
Example 8:
the utility model provides an initiative radiating lithium cell case, the lithium cell is provided with Zigbee wireless communication module, zigbee wireless communication module is connected with microprocessor displacement sensor, alarm module. The Zigbee wireless communication module is connected with the remote computer, so that the remote computer can alarm and display alarm content.
Example 9:
the utility model provides an initiative radiating lithium cell case, semiconductor cooling device top cap adopts insulating material to make, the side board adopts the easy thermal expansion's of heat conduction board, insulating material is polytetrafluoroethylene, the easy thermal expansion's of heat conduction board is the silicon substrate, and the material of bottom plate is high silica cotton.
Example 10:
the air quantity of the fan 6 is divided into 5 parts for use, and the air channel directly cools the hot end of the cooling system.
Furthermore, in the above technical scheme, the lithium battery monitoring unit comprises monitoring of the electric quantity of the lithium battery, and the electric quantity prompt is performed through the alarm module. Furthermore, the Zigbee wireless communication module is connected with the remote computer, so that the problem of reminding the electric quantity on the computer can be solved, and the untimely charging is avoided.
Furthermore, in the above technical scheme, when the battery works, each component starts to operate, the oil cooling system is started, the total voltage detection module detects the working voltage of the lithium battery, the current detection module detects the working current of the lithium battery pack, and the temperature sensor monitors the temperature of the lithium battery. When the temperature of the temperature sensor is higher than 50 ℃, starting oil cooling; when the temperature of the temperature sensor is higher than 60 ℃, the microcontroller transmits signals to the switch driving module and the alarm module, the alarm module gives out alarm whistle when the alarm lamp is on, and the semiconductor cooling device is started, and when the temperature of the temperature sensor is higher than 70 ℃, the switch driving module cuts off power supply of the power supply.
While the foregoing description illustrates and describes the preferred embodiments of the present invention, as noted above, it is to be understood that the invention is not limited to the forms disclosed herein but is not to be construed as excluding other embodiments, and that various other combinations, modifications and environments are possible and may be made within the scope of the inventive concepts described herein, either by way of the foregoing teachings or by those of skill or knowledge of the relevant art. And that modifications and variations which do not depart from the spirit and scope of the invention are intended to be within the scope of the appended claims.
Claims (1)
1. An actively radiating lithium battery box comprises a cooling device, and is characterized in that the cooling device comprises a heat pump system and a semiconductor cooling system, the heat pump system comprises a battery (1), and the battery (1) is placed in an oil storage tank (3) filled with mineral oil (16); the heat pump system further comprises an oil storage tank (3), an evaporator (2), an expansion valve (14), an oil pump (13), a throttle valve (12), a liquid storage device (11), a condenser (10), a four-way reversing valve (9), a compressor (8), a gas-liquid separator (7) and a reverse control integrated machine (15) which are connected in sequence in a sealing way through pipelines, wherein a monitoring system is arranged in the oil storage tank (3); the outlet of the compressor (8) is connected with the port A of the four-way reversing valve (9), the port B of the four-way reversing valve (9) is connected with the inlet of the condensing system, the outlet of the condensing system is connected with the inlet of the liquid storage device (11), the outlet of the liquid storage device (11) is connected with the throttle valve (12), and the throttle valve
The valve (12) is connected with the pipeline inlet of the evaporator (2), the outlet of the pipeline of the evaporator (2) is communicated with the port C of the four-way reversing valve (9), the port D of the four-way reversing valve (9) is communicated with the inlet of the gas-liquid separator (7), and the outlet of the gas-liquid separator (7) is communicated with the inlet of the compressor (8); the condensing system comprises a condenser (10); the evaporator (2) is a coil pipe and is arranged in the oil storage tank (3); the output port of the compressor (8) is connected with the input end of a four-way reversing valve (9), the output end of the four-way reversing valve (9) is connected with a gas-liquid separator (7), the third output end of the four-way reversing valve (9) is connected with the input end of the compressor (8), and throttle valves (12) are respectively arranged on connecting pipelines of the gas-liquid separator (7); the semiconductor cooling system comprises a cold end (4), a hot end (5), an air cooling device and a semiconductor; the cold end (4) is closely matched with the bottom of the oil storage tank (3)
Connecting; the semiconductor is an N-type semiconductor and a P-type semiconductor, and is vertically arranged between the cold end (4) and the hot end (5); the air cooling device comprises a box body, a top cover and a side cover, and is arranged right below the hot end; the semiconductor cooling system is connected with the anode and the cathode of the lithium battery; the working medium of the heat pump system is R410A; an active heat dissipation device is arranged on the condenser (10), the active heat dissipation device is an air cooling device, independent coils which are favorable for heat dissipation are arranged on one side of the condenser (10), the independent coils of the condensing system are connected with a renewable energy conversion and utilization system, radiating fins are arranged on the independent coils at equal intervals, and an air cooling device is arranged on one side of the independent coils; the air cooling device is a fan (6); the monitoring system comprises a lithium battery monitoring unit, a current detection module, a total voltage detection module, a microcontroller, a switch driving module, a temperature sensor, a displacement sensor and an alarm module, wherein the lithium battery monitoring unit, the current detection module, the total voltage detection module, the switch driving module, the temperature sensor, the displacement sensor and the alarm module are all electrically connected with the microcontroller; the lithium battery is provided with a Zigbee wireless communication module; the radiating fin is made of aluminum alloy.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810672395.8A CN108807768B (en) | 2018-06-26 | 2018-06-26 | Active heat dissipation lithium battery box |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810672395.8A CN108807768B (en) | 2018-06-26 | 2018-06-26 | Active heat dissipation lithium battery box |
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| CN108807768A CN108807768A (en) | 2018-11-13 |
| CN108807768B true CN108807768B (en) | 2024-01-30 |
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| CN201810672395.8A Active CN108807768B (en) | 2018-06-26 | 2018-06-26 | Active heat dissipation lithium battery box |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110071244B (en) * | 2019-04-30 | 2020-03-13 | 南京理工自动化研究院有限公司 | Heat exchange heat dissipation battery box for power lithium ion battery of electric automobile |
| CN110176655A (en) * | 2019-05-16 | 2019-08-27 | 江苏金派克新能源有限公司 | Novel lithium battery heat dissipation heat-insulation system |
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| WO2012006792A1 (en) * | 2010-07-14 | 2012-01-19 | Li Hui | Electric automobile thermal management system |
| CN205646058U (en) * | 2016-03-29 | 2016-10-12 | 武汉科技大学 | Heat abstractor is wrapped with batteries of electric vehicle that forced air cooling combined together to liquid cooling |
| CN206134866U (en) * | 2016-10-17 | 2017-04-26 | 江苏速度智能科技有限公司 | Well low -speed new forms of energy electric automobile's BMS safety control system device |
| CN107302114A (en) * | 2017-07-11 | 2017-10-27 | 浙江谷神能源科技股份有限公司 | Lithium battery with heat alert device |
| CN209087925U (en) * | 2018-06-26 | 2019-07-09 | 南通鼎鑫电池有限公司 | A kind of lithium battery box of active heat removal |
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2018
- 2018-06-26 CN CN201810672395.8A patent/CN108807768B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2012006792A1 (en) * | 2010-07-14 | 2012-01-19 | Li Hui | Electric automobile thermal management system |
| CN205646058U (en) * | 2016-03-29 | 2016-10-12 | 武汉科技大学 | Heat abstractor is wrapped with batteries of electric vehicle that forced air cooling combined together to liquid cooling |
| CN206134866U (en) * | 2016-10-17 | 2017-04-26 | 江苏速度智能科技有限公司 | Well low -speed new forms of energy electric automobile's BMS safety control system device |
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| CN108807768A (en) | 2018-11-13 |
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