CN108281735A - A kind of batteries of electric automobile heat-insulation system and its method - Google Patents
A kind of batteries of electric automobile heat-insulation system and its method Download PDFInfo
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- CN108281735A CN108281735A CN201810011568.1A CN201810011568A CN108281735A CN 108281735 A CN108281735 A CN 108281735A CN 201810011568 A CN201810011568 A CN 201810011568A CN 108281735 A CN108281735 A CN 108281735A
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- temperature
- battery
- battery pack
- pipeline
- increasing unit
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- 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
- H01M10/615—Heating or keeping warm
-
- 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
- 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
-
- 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
- B60L58/27—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 heating
-
- 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
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- 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
- H01M10/63—Control systems
- H01M10/635—Control systems based on ambient temperature
-
- 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
- H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
- H01M10/663—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an air-conditioner or an engine
-
- 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
- H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
- H01M10/667—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an electronic component, e.g. a CPU, an inverter or a capacitor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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
-
- 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
Abstract
The present invention provides a kind of batteries of electric automobile heat-insulation system and its methods, belong to electric vehicle engineering field.It is slow to battery heating speed that it solves existing technology, the problem of influencing performance.This batteries of electric automobile heat-insulation system includes being coupled to form battery heating and thermal insulation circulation line by control valve with circulating battery pipeline by motor cycle pipeline, by the first electronic water pump, the distance increasing unit circulation line and temperature controller of heater and distance increasing unit composition, circulating battery pipeline is equipped with temperature sensor, distance increasing unit circulation line passes through heat exchanger and motor cycle piping connection, this heat preserving method includes the battery pack temperature that temperature controller is monitored according to temperature sensor, whether control distance increasing unit and heater work at the same time, and then make battery pack heating and thermal insulation to normal working temperature by battery heating and thermal insulation circulation line or circulating battery pipeline.This heat-insulation system and its method can improve the performance of battery at low ambient temperatures.
Description
Technical field
The invention belongs to electric vehicle engineering field, it is related to a kind of batteries of electric automobile heat-insulation system and its method.
Background technology
Add sternly now with national oil consumption and the continuous of emission regulation, more and more main engine plants throw oneself into electric vehicle
Exploitation, and for pure electric automobile, battery can have that efficiency for charge-discharge is low at low ambient temperatures, extreme influence battery
The problems such as course continuation mileage and service life, therefore need heat management to solve the problems, such as battery thermal at low ambient temperatures so that battery
It is maintained between 10 DEG C -25 DEG C of its normal working temperature and works.And the scheme of mainstream is using PTC heating, but the program at present
Firstly the need of consumption battery capacity, when car cold start-up at low ambient temperatures, battery can not provide enough electricity and add to PTC
Heat, therefore the sale of pure electric vehicle receives zonal limitation, and PTC is heated to provide heat preservation to battery and heat and also will
High degree consumes electricity, reduces the course continuation mileage of battery, it is contemplated that PTC heating will influence in total continuation of the journey in the environment of -30 DEG C
50% or more of journey.
In view of the above problems, existing Chinese patent literature discloses a kind of electric automobile power battery heat preservation system
System and heat preserving method【Application number：CN201110284036.3】, heat-insulation system includes air-conditioning system, generator, oil-burning machine, cold and hot
Exchange system, temperature sensor and battery management system, temperature sensor are used to monitor temperature, the battery management system of power battery
System controls the oil-burning machine, generator, air-conditioning system and cold-heat exchange system according to the temperature of temperature sensor monitors；Wherein,
When the temperature that temperature sensor monitors arrive is less than power battery normal working temperature, battery management system control oil-burning machine is opened
It opens, the battery compartment that the thermal energy that cold-heat exchange system generates oil-burning machine passes through Pipeline transport to power battery；Work as temperature sensor
When the temperature monitored is higher than power battery normal working temperature, battery management system controls air-conditioning system and opens, cold and hot exchange
The battery compartment that the cold air that system generates air-conditioning system passes through Pipeline transport to power battery.Although the invention can make power electric
Pond always works under optimum temperature environment, but the invention thermal energy that is generated only with oil-burning machine adds power battery
Heat, it is slow that there are heating speeds, the problem of influencing electric vehicle performance.
Invention content
The purpose of the present invention is there is the above problem in view of the prior art, it is proposed that a kind of batteries of electric automobile heat preservation system
System and its method, the technical problem to be solved is that：How battery pack temperature to be made to reach normal work as early as possible at low ambient temperatures
Temperature simultaneously ensures that battery pack temperature remains under normal working temperature.
Object of the invention can be realized by the following technical scheme：A kind of batteries of electric automobile heat-insulation system, including electricity
Machine circulation line, circulating battery pipeline, the distance increasing unit circulation line and temperature controller being made of the first electronic water pump and distance increasing unit,
The circulating battery pipeline is equipped with the temperature sensor for monitoring battery pack temperature, which is characterized in that the distance increasing unit follows
Endless tube road is by heat exchanger and motor cycle piping connection, and having heaters of also arranging between the distance increasing unit and heat exchanger is described
The battery pack temperature that temperature controller is monitored according to temperature sensor controls distance increasing unit and heater start and stop, the motor cycle
Pipeline is coupled with circulating battery pipeline by control valve, the battery pack temperature that the temperature controller is monitored according to temperature sensor
Degree, control control valve connect or disconnect motor cycle pipeline and circulating battery pipeline.
The operation principle of this batteries of electric automobile heat-insulation system is：Detect that the temperature of battery pack is less than in temperature sensor
When normal working temperature, i.e. cold start-up, temperature controller controls distance increasing unit work, distance increasing unit power generating and heating, to distance increasing unit circulation line
It is heated, while the power of distance increasing unit output keeps the first electronic water pump and heater in running order, at the same time, control
The control valve connected between motor cycle pipeline and circulating battery pipeline is connected, and is allowed to form battery heating and thermal insulation circulation line,
At this point, heater heats distance increasing unit circulation line jointly with distance increasing unit, the water after heating gives battery heating and thermal insulation by heat exchanger
Circulation line heats, and in the process, heater and distance increasing unit work together, and faster to battery pack heating speed, effectively promote
The temperature of battery pack can reach normal working temperature as early as possible, effectively increase the working efficiency and performance of battery, and
And in the process, it is not necessarily to battery pack to discharge, solves the problems, such as that cold-starting influences battery life.
When battery pack temperature reaches normal working temperature, battery pack and electrical equipment and electrical are started to work, in the process battery
Packet and electrical equipment and electrical heat production control distance increasing unit and heater and are stopped, during this, by battery pack and electrical equipment and electrical from
Body heat production keeps the temperature battery heating and thermal insulation circulation line, to make battery pack be maintained at normal working temperature or battery
Packet is kept the temperature using the circulating battery pipeline of itself, i.e., is kept the temperature by the calorific value of battery pack work itself.Wherein, electric
Machine circulation line is coupled by heat exchanger with distance increasing unit circulation line, and circulating battery pipeline couples with motor cycle pipeline, in this way
Connecting mode, can in water temperature over-high on motor cycle pipeline, by control valve disconnect with the connection of circulating battery pipeline, keep away
It is more than normal working temperature to exempt from battery pack heating temperature, ensures that the temperature of battery pack can be maintained under normal working temperature.This
Whether batteries of electric automobile heat-insulation system controls heater and distance increasing unit work according to the temperature conditions of battery pack, make battery pack
Temperature can be climbed to normal working temperature and remain under normal working temperature, improve battery and
While performance, reasonable utilization also is carried out to the energy, has been effectively saved energy consumption.
In above-mentioned batteries of electric automobile heat-insulation system, the motor cycle pipeline includes being sequentially arranged on pipeline
The cold side of second electronic water pump, electrical equipment and electrical and motor radiator, the heat exchanger is connected in electrical equipment and electrical and motor radiator
Between, the hot side of the heat exchanger is connected between the first electronic water pump and heater.It is excessively high in the temperature of motor cycle pipeline
Or electrical equipment and electrical temperature it is higher when, can be radiated by the motor cycle pipeline of itself, ensure battery pack temperature can
While being maintained at normal working temperature, moreover it is possible to improve the working performance of electric vehicle.
In above-mentioned batteries of electric automobile heat-insulation system, the circulating battery pipeline includes third electronic water pump, battery
Packet, cooler and battery radiator, the control valve include triple valve and four-way valve, three interfaces of the triple valve respectively with
The cold side of heat exchanger, motor radiator and the connection of third electronic water pump, four interfaces of the four-way valve respectively with battery pack,
Battery radiator, cooler and the connection of the second electronic water pump, the third electronic water pump successively with battery pack, four-way valve and cold
But device unicom formed battery first circulation pipeline, the third electronic water pump successively with battery pack, four-way valve and battery radiator
Connection forms battery second circulation pipeline.When the temperature of battery pack is higher than normal working temperature, battery first circulation can be passed through
Pipeline or battery second circulation pipeline radiate, and ensure that the operating temperature of battery pack can be maintained under normal working temperature,
Effectively increase the performance of battery pack.Wherein, cooler and the vehicle air-conditioning system of itself are connect, and pass through coolant liquid and system
Heat exchange reaches cooling purpose between cryogen.
In above-mentioned batteries of electric automobile heat-insulation system, the battery heating and thermal insulation circulation line includes being sequentially arranged in
Third electronic water pump, battery pack, four-way valve, the second electronic water pump, electrical equipment and electrical, heat exchanger on pipeline and triple valve.Four
Couple connection heat exchanger and third electronic water pump in interface connection and triple valve of the battery pack with the second electronic water pump in port valve
Interface connect when, battery pack pass through battery heating and thermal insulation circulation line carry out heating and thermal insulation, battery heating and thermal insulation circulation line
Battery pack is heated and kept the temperature after can converting the water after distance increasing unit and heater heating by heat exchanger, passes through the pipeline
When electrical equipment and electrical and battery pack start work, the heat generated in electrical equipment and electrical work can also keep the temperature battery pack,
While ensureing battery pack performance, the energy expenditure of distance increasing unit is also reduced, the energy is effectively saved.
In above-mentioned batteries of electric automobile heat-insulation system, the batteries of electric automobile heat-insulation system further includes the first water temperature
Sensor and the second water temperature sensor, after first water temperature sensor is mounted on the pipeline of distance increasing unit, second water temperature passes
Sensor is mounted between heat exchanger and triple valve.During heating, temperature controller is according to the first water temperature sensor and the second water temperature
Water temperature signal that Sensor monitoring arrives whether control heater work and is adjusted the generated output of distance increasing unit, is ensured with this
The temperature of battery pack can be heated and maintained under normal working temperature, play the role of improving battery performance.
In above-mentioned batteries of electric automobile heat-insulation system, the distance increasing unit circulation line further includes heater core and arrangement
Warm air fan after heater core.Heater core and warm air fan are arranged on distance increasing unit circulation line, can be riding space
Heating demands are provided, the charge capacity of battery pack need not be lost, while the heat itself generated can also be kept the temperature for battery pack.
In above-mentioned batteries of electric automobile heat-insulation system, the temperature sensor is mounted in battery pack, for monitoring
The temperature of battery pack core.
A kind of batteries of electric automobile heat preserving method, including：Pass through the temperature of temperature sensor monitors battery pack；Pass through temperature control
Device judges whether the temperature of the battery pack is less than the normal working temperature of battery pack, which is characterized in that the heat preserving method is also
Including：When the temperature for judging the battery pack is less than the normal working temperature of battery pack, controls distance increasing unit and heater is common
Distance increasing unit circulation line is heated in work, while controlling control valve connection, to make motor cycle pipeline and circulating battery
Pipeline between pipeline is connected to form battery heating and thermal insulation circulation line, is added to battery heating and thermal insulation circulation line by heat exchanger
Heat makes battery pack temperature be heated to normal working temperature；It is in the normal work of battery pack in the temperature for judging the battery pack
When temperature, battery pack and electrical equipment and electrical are started to work, and control distance increasing unit and heater is stopped, followed by battery heating and thermal insulation
Endless tube road or circulating battery pipeline make the temperature of battery pack under normal working temperature.
The operation principle of this batteries of electric automobile heat preserving method is：In the temperature for judging battery pack less than normal work temperature
When degree, i.e. cold start-up, distance increasing unit starts work and generates electricity, and the heat generated in power generation process carries out distance increasing unit circulation line
Heating, while the power of its output makes heater, the first electronic water pump, the second electronic water pump and third electronic water pump be in work
State, at the same time, temperature controller control control valve and connect, to make the pipeline between motor cycle pipeline and circulating battery pipeline
Connection forms battery heating and thermal insulation circulation line, and the water heated in distance increasing unit circulation line gives battery heating and thermal insulation by heat exchanger
Circulation line heats, and accelerates battery pack temperature rise, so that the temperature of battery pack is reached normal working temperature as early as possible, herein mistake
Cheng Zhong provides electric energy, effectively without battery pack to heater, the first electronic water pump, the second electronic water pump and third electronic water pump
Solve the problems, such as influence of the cold-starting to battery life；When the temperature for judging battery pack is in normal working temperature, by electricity
The heat that machine electric appliance and battery pack itself generate to give battery pack heat preservation, is ensureing that battery pack is operated in the same of normal working temperature
When, save the energy expenditure of distance increasing unit.
In above-mentioned batteries of electric automobile heat preserving method, during heating, temperature controller is according to the first water temperature sensor
The water temperature condition monitored with the second water temperature sensor, whether control heater works and whether control distance increasing unit reduces hair
Electrical power, so that the temperature of battery pack is maintained under normal working temperature.It is sensed by the first water temperature sensor and the second water temperature
The setting of device, it is ensured that the temperature of battery pack can remain under normal working temperature, avoid over-heating, make battery pack
Temperature is more than normal working temperature, the case where to influence battery pack service life.
In above-mentioned batteries of electric automobile heat preserving method, it is more than safety in the water temperature T m that the second water temperature sensor monitors
When the water temperature T r that value or the first water temperature sensor monitor is more than water temperature upper limit value, control heater is stopped, and control
Distance increasing unit reduces generated output.When water temperature T m is more than safety value and water temperature T r is more than water temperature upper limit value, control heater stops
Work comes, to battery thermal, to set safety value and water temperature upper limit value, it is ensured that battery pack by distance increasing unit itself work calories
Operating temperature can remain under normal working temperature, avoid to battery pack over-heating, influence battery pack instead and use
The case where service life.
In above-mentioned batteries of electric automobile heat preserving method, it is less than water temperature in the water temperature T r that the second water temperature sensor monitors
When lower limiting value, control heater is started to work.Water temperature lower limiting value and water temperature upper limit value are set, can avoid opening and closing repeatedly and add
Hot device, the case where causing heater failure.
In above-mentioned batteries of electric automobile heat preserving method, in insulating process, when temperature sensor monitors to battery pack
Temperature when being in the first normal working temperature, control battery pack and electrical equipment and electrical started to work, control distance increasing unit and heating
Device is stopped, and makes the temperature of battery pack under normal working temperature by battery heating and thermal insulation circulation line.It crosses herein
Cheng Zhong, the heat generated by electrical equipment and electrical work keep the temperature battery, are played while ensureing battery pack performance
Save the effect of energy consumption.
In above-mentioned batteries of electric automobile heat preserving method, when the temperature of temperature sensor monitors to battery pack is in second
When normal working temperature, make the temperature of battery pack in normal work by the battery first circulation pipeline in circulating battery pipeline
At a temperature of work；When the temperature of temperature sensor monitors to battery pack is more than the second normal working temperature, cooler or electricity are controlled
Pond radiator work, makes battery pack pass through circulating battery pipeline and radiates.In the process, pass through battery pack work itself
Calorific value is kept the temperature, while ensureing that battery pack operating temperature is in normal working temperature always, moreover it is possible to effectively save energy
Source.
In above-mentioned batteries of electric automobile heat preserving method, the batteries of electric automobile heat preserving method further includes to battery pack
Charge condition be monitored, the electricity for monitoring battery pack be less than preset value when, temperature controller control distance increasing unit work for electricity
Chi Bao charges.In this process, distance increasing unit, which works, can be improved the course continuation mileage of battery.
Compared with prior art, this batteries of electric automobile heat-insulation system and its method have the following advantages：
1, the present invention starts distance increasing unit in low-temperature cool starting and works under low-power, while the electric energy that distance increasing unit provides makes
Heater is in running order simultaneously, faster to battery heating speed, while being not necessarily to battery discharge, avoids cold-starting to battery
The problem of service life impacts, while solving the problems, such as that course continuation mileage is short under pure electric automobile low temperature environment, effectively increases
The performance of battery.
2, the present invention, can be according to the heat preservation demand and electricity size of battery pack after battery pack reaches normal working temperature
Whether determining distance increasing unit work, it is not necessarily to heater working loss battery pack electricity, while distance increasing unit remaining capacity can be battery pack
Charging, improves the course continuation mileage of battery pack.
3, the present invention controls corresponding circulation line work, is protecting according to battery pack temperature and water temperature condition is detected
Battery pack heating and thermal insulation is demonstrate,proved while normal working temperature, also as save energy consumption.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
In figure, 1, distance increasing unit circulation line；11, the first electronic water pump；12, distance increasing unit；13, the first water temperature sensor；14、
Heater；15, heater core；16, warm air fan；2, motor cycle pipeline；21, the second electronic water pump；22, the second water temperature senses
Device；23, motor radiator；24, electrical equipment and electrical；3, circulating battery pipeline；31, third electronic water pump；32, battery pack；33, temperature
Sensor；34, cooler；35, battery radiator；4, heat exchanger；5, triple valve；6, four-way valve；7, radiator fan.
Specific implementation mode
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
As shown in Figure 1, this batteries of electric automobile heat-insulation system includes by the second electronic water pump 21, electrical equipment and electrical 24 and motor
Radiator 23 form motor cycle pipeline 2, by third electronic water pump 31, battery pack 32, cooler 34 and battery radiator 35
The circulating battery pipeline 3 of composition, the distance increasing unit circulation line 1 being made of the first electronic water pump 11, distance increasing unit 12 and heater 14
And the temperature controller for controlling each circulation line work, circulating battery pipeline 3 are equipped with for monitoring 32 temperature of battery pack
Temperature sensor 33, distance increasing unit circulation line 1 are connect by heat exchanger 4 with motor cycle pipeline 2, wherein the first electronic water pump
The hot side that heat exchanger 4 is connected between 11 and heater 14, connects the cold of heat exchanger 4 between electrical equipment and electrical 24 and motor radiator 23
Side, motor cycle pipeline 2 are coupled with circulating battery pipeline 3 by control valve, when control valve is connected, 2 He of motor cycle pipeline
The connection of circulating battery pipeline 3 forms battery heating and thermal insulation circulation line, preferably, control valve includes triple valve 5 and four-way valve
6, battery heating and thermal insulation circulation line include the third electronic water pump 31 being sequentially arranged on pipeline, battery pack 32, four-way valve 6,
Second electronic water pump 21, electrical equipment and electrical 24, heat exchanger 4 and triple valve 5, temperature sensor 33 are mounted in battery pack 32, are used for
The temperature of 32 core of battery pack is monitored, 32 temperature of battery pack that temperature controller is monitored according to temperature sensor 33 is monitoring
32 temperature of battery pack when being less than normal working temperature, control distance increasing unit 12 and heater 14 and work at the same time, and then pass through battery
Heating and thermal insulation circulation line makes battery pack 32 be heated to normal working temperature；It is in normal work in 32 temperature of battery pack monitored
When making temperature, controls distance increasing unit 12 and heater 14 is stopped, pass through battery heating and thermal insulation circulation line or circulating battery pipe
Road 3 makes the heat preservation of battery pack 32 in normal working temperature.Wherein, three interfaces of triple valve 5 respectively with the cold side of heat exchanger 4, electricity
Machine radiator 23 and third electronic water pump 31 couple, and four interfaces of the four-way valve 6 radiate with battery pack 32, battery respectively
Device 35, cooler 34 and the connection of the second electronic water pump 21.
Wherein, distance increasing unit 12 is the integrated assembly of put-put and generator, is equivalent to small generator, distance increasing unit 12
Select power within 25kw, convenient for placing.
Third electronic water pump 31 forms battery first circulation pipe with battery pack 32, four-way valve 6 and 34 unicom of cooler successively
Road, third electronic water pump 31 connect to form battery second circulation pipe with battery pack 32, four-way valve 6 and battery radiator 35 successively
Road.When the temperature of battery pack 32 is higher than normal working temperature, battery first circulation pipeline or battery second circulation pipe can be passed through
Road is radiated, and is ensured that the operating temperature of battery pack 32 can be maintained under normal working temperature, is effectively increased battery pack 32
Performance.Wherein, cooler 34 and the vehicle air-conditioning system of itself are connect, and are reached by exchanging heat between coolant liquid and refrigerant
To cooling purpose.
Preferably, batteries of electric automobile heat-insulation system further includes the first water temperature sensor 13 and the second water temperature sensing
Device 22, after the first water temperature sensor 13 is mounted on the pipeline of distance increasing unit 12, the leaving water temperature for monitoring distance increasing unit 12；Second water
Temperature sensor 22 is mounted between heat exchanger 4 and triple valve 5, for monitoring the water temperature on battery heating and thermal insulation circulation line.
In heating process, the water temperature signal that temperature controller is monitored according to the first water temperature sensor 13 and the second water temperature sensor 22, control
Whether heater 14 works and the generated output of distance increasing unit 12 is adjusted, ensures that the temperature of battery pack 32 can heat simultaneously with this
It is maintained under normal working temperature, plays the role of improving battery performance.
Preferably, distance increasing unit circulation line 1 further includes heater core 15 and is arranged in warm after heater core 15
Wind fan 16.Heater core 15 and warm air fan 16 are arranged on distance increasing unit circulation line 1, heating can be provided for riding space to be needed
It asks, the charge capacity of battery pack 32 need not be lost, while the heat that itself is generated can also be kept the temperature for battery pack 32.
This batteries of electric automobile heat preserving method includes：The temperature of battery pack 32 is monitored by temperature sensor 33；Pass through temperature
Control device judge battery pack 32 temperature whether less than battery pack 32 normal working temperature, judging that the temperature of battery pack 32 is less than
When the normal working temperature of battery pack 32, controls distance increasing unit 12 and heater 14 is worked together and carried out to distance increasing unit circulation line 1
Heating, while control valve connection is controlled, it to be formed to make the pipeline between motor cycle pipeline 2 and circulating battery pipeline 3 connect
Battery heating and thermal insulation circulation line is heated to battery heating and thermal insulation circulation line by heat exchanger 4,32 temperature of battery pack is made to heat
To normal working temperature；When the temperature for judging battery pack 32 is in the normal working temperature of battery pack 32, battery pack 32 and electricity
Machine electric appliance 24 is started to work, and controls distance increasing unit 12 and heater 14 is stopped, pass through battery heating and thermal insulation circulation line or electricity
Pond circulation line 3 makes the temperature of battery pack 32 under normal working temperature.
Preferably, during heating, temperature controller is according to the first water temperature sensor 13 and the second water temperature sensor
22 water temperature conditions monitored, whether control heater 14 works and whether control distance increasing unit 12 reduces generated output, with
The temperature of battery pack 32 is set to be maintained under normal working temperature.Pass through the first water temperature sensor 13 and the second water temperature sensor 22
Setting, it is ensured that the temperature of battery pack 32 can remain under normal working temperature, avoid over-heating, make battery pack 32
Temperature is more than normal working temperature, the case where to influence 32 service life of battery pack.
It is monitored more than safety value or the first water temperature sensor 13 in the water temperature T m that the second water temperature sensor 22 monitors
When water temperature T r is more than water temperature upper limit value, control heater 14 is stopped, and control distance increasing unit 12 reduces generated output；
When the water temperature T r that two water temperature sensors 22 monitor is less than water temperature lower limiting value, control heater 14 is started to work.It is big in water temperature T m
When safety value and water temperature T r are more than water temperature upper limit value, control heater 14 is stopped, by itself working heat of distance increasing unit 12
Amount, to battery thermal, to set safety value and water temperature upper limit value, it is ensured that the operating temperature of battery pack 32 can remain at
Under normal working temperature, the case where avoiding to 32 over-heating of battery pack, influence 32 service life of battery pack instead.
Preferably, safety value may be set to 30 DEG C, to ensure that the operating temperature of battery pack 32 can be always held at 30
It works at DEG C, water temperature upper limit value may be set to 80 DEG C, ensure again when ensureing that battery pack 32 can be heated to normal working temperature
Battery pack 32 will not over-heating, instead influence 32 service life of battery pack the case where.Water temperature lower limiting value may be set to 60 DEG C, if
The case where setting water temperature lower limiting value and water temperature upper limit value, can avoid opening and closing heater 14 repeatedly, heater 14 being caused to damage.
Preferably, in insulating process, when temperature sensor 33 monitors that the temperature of battery pack 32 is in first
It when normal working temperature, controls battery pack 32 and electrical equipment and electrical 24 is started to work, control distance increasing unit 12 and heater 14 stops
Work, makes the temperature of battery pack 32 under normal working temperature by battery heating and thermal insulation circulation line；Work as temperature sensing
When device 33 monitors that the temperature of battery pack 32 is in the second normal working temperature, pass through the battery first in circulating battery pipeline 3
Circulation line makes the temperature of battery pack 32 under normal working temperature；When temperature sensor 33 monitors the temperature of battery pack 32
When degree is more than the second normal working temperature, controls cooler 34 or battery radiator 35 works, battery pack 32 is made to be followed by battery
Endless tube road 3 carries out heat dissipation cycle.In the process, heat or battery pack 32 work itself generated by the work of electrical equipment and electrical 24
Calorific value battery is kept the temperature, play the role of while ensureing 32 performance of battery pack save energy consumption.
Preferably, batteries of electric automobile heat preserving method further includes being monitored to the charge condition of battery pack 32,
When the electricity for monitoring battery pack 32 is less than preset value, it is that battery pack 32 charges that temperature controller, which controls the work of distance increasing unit 12,.Herein
Process, distance increasing unit 12, which works, can be improved the course continuation mileage of battery.
As shown in Figure 1, the specific connection relation of this batteries of electric automobile heat-insulation system is：Distance increasing unit circulation line 1 includes
The first electronic water pump 11, distance increasing unit 12, the 4 hot side pipe of heater 14, heater core 15 and heat exchanger coupled successively, the first water temperature
After sensor 13 is mounted on distance increasing unit 12, for detecting 12 leaving water temperature of distance increasing unit；Motor cycle pipeline 2 includes coupling successively
Second electronic water pump 21, electrical equipment and electrical 24,4 cold side pipe of heat exchanger, a interfaces of triple valve 5 and b interfaces and motor radiator
23, the second water temperature sensor 22 is mounted between heat exchanger 4 and triple valve 5；Circulating battery pipeline 3 includes by third electronic water pump
31, battery pack 32, a interfaces of four-way valve 6 and c interfaces and cooling tube couple the battery first circulation pipeline of composition successively, by
Third electronic water pump 31, battery pack 32, a interfaces of four-way valve 6 and d interfaces and battery radiator 35 couple the electricity of composition successively
The b interfaces of pond second circulation pipeline, triple valve 5 couple with third electronic water pump 31, and wherein temperature sensor 33 is mounted on battery
On packet 32, for detecting 32 core temperature of battery pack；In a interfaces and b interfaces unicom of triple valve 5 and a interfaces of four-way valve 6
When with b interface unicom, by third electronic water pump 31, battery pack 32, four-way valve 6, the second electronic water pump 21, electrical equipment and electrical 24, change
Unicom forms battery heating and thermal insulation circulation line successively for hot device 4 and triple valve 5.Wherein warm wind wind is there also is provided after heater core 15
Fan 16 is used for air draught, improves warm wind effect, is arranged with radiator fan 7 after motor radiator 23 and battery radiator 35, is used for
Air draught improves heat dissipation effect.
The operation principle of this batteries of electric automobile heat preserving method is：The normal working temperature of battery pack 32 may be set to be more than
10 DEG C, it is less than or equal to 25 DEG C.When the temperature Tb that the temperature sensor 33 in battery pack 32 monitors is less than or equal to 10 DEG C
When, judge that battery pack 32 is under low temperature environment, at this point, a interfaces and b interface unicom of temperature controller control triple valve 5, four-way valve
6 a interface and b interface unicom forms battery heating and thermal insulation circulation line, is less than or equal to 10 DEG C in Tb, i.e. battery pack 32 is in
Cold start, temperature controller control distance increasing unit 12 work under low-power, and control distance increasing unit 12 works under low-power, can be abundant
Using the energy, because battery pack 32 is at low ambient temperatures, charge and discharge can all impact 32 service life of battery pack, low-power
The case where working and can avoid power generation excessively, and can not giving the charging of battery pack 32, cause energy waste, distance increasing unit 12 is under low-power
Power generation, the heat for the generation that generates electricity heat distance increasing unit circulation line 1, while output power so that heater 14, first is electric
Sub- water pump 11, warm air fan 16 are in running order, while the second electronic water pump 21 and/or third electronic water pump 31 being made to be in work
Make state, controls the second electronic water pump 21 and third electronic water pump 31 works at the same time or select Single Electron starting mode of pump work
Make, depend on the value size of the temperature Tb of battery pack 32, such as in Tb when subzero, then controls the second electronic water pump 21 and third electricity
Sub- water pump 31 works at the same time, faster to 32 heating speed of battery pack, conversely, the just one of work of the two choosing, 14 He of heater
Distance increasing unit 12 simultaneously heats distance increasing unit circulation line 1, and the water after heating is heated by heater core 15 to driver's cabin, is led to simultaneously
It crosses heat exchanger 4 to heat to battery heating and thermal insulation circulation line, the water on battery heating and thermal insulation circulation line is in the first electronic water pump
11 and second under the action of electronic water pump 21, accelerates 32 temperature rise of battery pack.In the process, the heating power of heater 14
It is constantly reduced with 13 temperature rise of the first water temperature sensor.During heating, when the monitoring of the first water temperature sensor 13
When water temperature T r is more than 80 DEG C, i.e., in temperature ramp de, control heater 14 is stopped, and distance increasing unit 12 exists according to power demand
Low-power point works, and when water temperature T r is less than 60 DEG C, that is, during declining, control heater 14 is started to work, distance increasing unit 12
It works according to power demand.
During heating, the temperature Tm of the second water temperature sensor 22 monitoring is necessarily less than 30 DEG C, leads to when water temperature over-high
It crosses temperature controller control heater 14 to cut off work and reduce by 12 generated output of distance increasing unit simultaneously to limit fever, makes battery pack 32
Temperature can heating and thermal insulation in normal working temperature.
When the 32 temperature Tb of battery pack that temperature sensor 33 monitors is more than 10 DEG C and is less than or equal to 20 DEG C, temperature controller control
Battery pack 32 processed and electrical equipment and electrical 24 are started to work, and control distance increasing unit 12 is stopped, and heater 14 is indoor according to driving
Heating demands work, and in the process, remaining ability is to electricity after the heat generated by the work of electrical equipment and electrical 24 and heating
Pond packet 32 is kept the temperature, and Utilizing Energy Sources in Reason is effectively saved the energy.In the process, the second water temperature sensor 22 is supervised in real time
Temperature Tm, the Tm value surveyed on battery heat cycles pipeline must assure that less than 30 DEG C, when Tm is more than 30 DEG C limitation heating or
Driving power is limited, to limit fever.
When 32 temperature of battery pack is more than 20 DEG C and is less than or equal to 25 DEG C, control control valve disconnects 2 He of motor cycle pipeline
Pipeline between circulating battery pipeline 3 keeps the temperature battery pack 32 using battery first circulation pipeline, in the process, electricity
Only have the calorific value of 32 work of battery pack itself to keep the temperature battery pack 32 on the first circulation pipeline of pond.When Tb is more than 25 DEG C
When, control battery pack 32 enters heat dissipation and recycles, i.e., control cooler 34 starts or battery radiator 35 starts, and passes through battery first
Circulation line or battery second circulation pipeline radiate to battery pack 32.
When 32 low battery of battery pack, such as SOC≤30%, into journey pattern is increased, distance increasing unit 12 is in work shape always
State, under the state, the power generation of distance increasing unit 12 is that battery pack 32 provides electric energy, improves the course continuation mileage of battery pack 32, in this case,
When water temperature T r is less than or equal to 80 DEG C, control heater 14 work to heating and the purpose of battery thermal, when water temperature T r is more than
At 80 DEG C, control heater 14 is closed, and is heated and is kept the temperature by the calorific value that distance increasing unit 12 works.In the process, temperature
Sensor 33, the first water temperature sensor 13 and the second water temperature sensor 22 are on 32 temperature of battery pack, distance increasing unit circulation line 1
Water temperature in water temperature and battery heating and thermal insulation circulation line is detected, it is ensured that the temperature of battery pack 32 is in normal work always
At a temperature of work.
During above-mentioned each, the temperature Tm that the second water temperature sensor 22 monitors is necessarily less than 30 DEG C, when Tm is more than 30
DEG C when, triple valve 5a interfaces are connected with b interfaces, reduce temperature at Tm by motor radiator 23, battery pack 32 passes through battery the
One circulation line keeps the temperature battery pack 32.
Specific embodiment described herein is only an example for the spirit of the invention.Technology belonging to the present invention is led
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (10)
1. a kind of batteries of electric automobile heat-insulation system, including motor cycle pipeline (2), circulating battery pipeline (3), by the first electronics
The distance increasing unit circulation line (1) and temperature controller of water pump (11) and distance increasing unit (12) composition, set on the circulating battery pipeline (3)
It is useful for the temperature sensor (33) of monitoring battery pack (32) temperature, which is characterized in that the distance increasing unit circulation line (1) passes through
Heat exchanger (4) is connect with motor cycle pipeline (2), having heaters of also arranging between the distance increasing unit (12) and heat exchanger (4)
(14), battery pack (32) temperature that the temperature controller is monitored according to temperature sensor (33) controls distance increasing unit (12) and adds
Hot device (14) start and stop, the motor cycle pipeline (2) are coupled with circulating battery pipeline (3) by control valve, the temperature controller root
Battery pack (32) temperature monitored according to temperature sensor (33), control control valve connect or disconnect motor cycle pipeline
(2) and circulating battery pipeline (3).
2. batteries of electric automobile heat-insulation system according to claim 1, which is characterized in that the motor cycle pipeline (2)
Including the second electronic water pump (21), electrical equipment and electrical (24) and motor radiator (23) being sequentially arranged on pipeline, the heat exchange
The cold side of device (4) is connected between electrical equipment and electrical (24) and motor radiator (23), and the hot side of the heat exchanger (4) is connected in
Between one electronic water pump (11) and heater (14).
3. batteries of electric automobile heat-insulation system according to claim 2, which is characterized in that the circulating battery pipeline (3)
Include threeway including third electronic water pump (31), battery pack (32), cooler (34) and battery radiator (35), the control valve
Valve (5) and four-way valve (6), three interfaces of the triple valve (5) respectively with the cold side of heat exchanger (4), motor radiator (23)
And third electronic water pump (31) connection, four interfaces of the four-way valve (6) respectively with battery pack (32), battery radiator
(35), cooler (34) and the second electronic water pump (21) connection, the third electronic water pump (31) successively with battery pack (32),
Four-way valve (6) and cooler (34) unicom form battery first circulation pipeline, the third electronic water pump (31) successively with battery
Packet (32), four-way valve (6) and battery radiator (35) connection form battery second circulation pipeline.
4. batteries of electric automobile heat-insulation system according to claim 3, which is characterized in that the batteries of electric automobile heat preservation
System further includes the first water temperature sensor (13) and the second water temperature sensor (22), and first water temperature sensor (13) is mounted on
After the pipeline of distance increasing unit (12), second water temperature sensor (22) is mounted between heat exchanger (4) and triple valve (5).
5. a kind of batteries of electric automobile heat preserving method, including：The temperature of battery pack (32) is monitored by temperature sensor (33)；It is logical
It crosses temperature controller and judges whether the temperature of the battery pack (32) is less than the normal working temperature of battery pack (32), which is characterized in that
The heat preserving method further includes：When the temperature for judging the battery pack (32) is less than the normal working temperature of battery pack (32),
Control distance increasing unit (12) and heater (14) co-operation heat distance increasing unit circulation line (1), while controlling control valve
It connects, battery heating and thermal insulation cycle is formed to make the pipeline between motor cycle pipeline (2) and circulating battery pipeline (3) connect
Pipeline is heated to battery heating and thermal insulation circulation line by heat exchanger (4), battery pack (32) temperature is made to be heated to normal work temperature
Degree；When the temperature for judging the battery pack (32) is in the normal working temperature of battery pack (32), battery pack (32) and motor
Electric appliance (24) is started to work, and control distance increasing unit (12) and heater (14) are stopped, and pass through battery heating and thermal insulation circulation line
Or circulating battery pipeline (3) makes the temperature of battery pack (32) under normal working temperature.
6. batteries of electric automobile heat preserving method according to claim 5, which is characterized in that during heating, temperature controller
According to the water temperature condition that the first water temperature sensor (13) and the second water temperature sensor (22) are monitored, heater (14) work is controlled
Whether work and whether control distance increasing unit (12) reduces generated output, so that the temperature of battery pack (32) is maintained at normal work temperature
Under degree.
7. batteries of electric automobile heat preserving method according to claim 6, which is characterized in that in the second water temperature sensor (22)
When the water temperature T m monitored is more than water temperature upper limit value more than the water temperature T r that safety value or the first water temperature sensor (13) monitor,
Control heater (14) is stopped, and control distance increasing unit (12) reduces generated output；It is supervised in the second water temperature sensor (22)
When the water temperature T r measured is less than water temperature lower limiting value, control heater (14) is started to work.
8. according to the batteries of electric automobile heat preserving method described in claim 5 or 6 or 7, which is characterized in that in insulating process,
When temperature sensor (33) monitors that the temperature of battery pack (32) is in the first normal working temperature, control battery pack (32) with
And electrical equipment and electrical (24) is started to work, control distance increasing unit (12) and heater (14) are stopped, and are followed by battery heating and thermal insulation
Endless tube road makes the temperature of battery pack (32) under normal working temperature.
9. according to the batteries of electric automobile heat preserving method described in claim 5 or 6 or 7, which is characterized in that work as temperature sensor
(33) when monitoring that the temperature of battery pack (32) is in the second normal working temperature, pass through the battery in circulating battery pipeline (3)
First circulation pipeline makes the temperature of battery pack (32) under normal working temperature；When temperature sensor (33) monitors battery
When wrapping the temperature of (32) more than the second normal working temperature, control cooler (34) or battery radiator (35) work make battery
Packet (32) is radiated by circulating battery pipeline (3).
10. according to the batteries of electric automobile heat preserving method described in claim 5 or 6 or 7, which is characterized in that the electric vehicle
Battery thermal method further includes being monitored to the charge condition of battery pack (32), is monitoring that the electricity of battery pack (32) is less than
When preset value, it is that battery pack (32) charges that temperature controller, which controls distance increasing unit (12) and works,.
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| CN201810011568.1A CN108281735B (en) | 2018-01-05 | 2018-01-05 | Battery heat-insulation system and method for electric automobile |
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| CN113675496A (en) * | 2021-07-16 | 2021-11-19 | 东风柳州汽车有限公司 | Pure electric vehicle power battery auxiliary heat management system and pure electric vehicle |
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