CN106092603B - A kind of test macro and electric car of power system of electric automobile - Google Patents
A kind of test macro and electric car of power system of electric automobile Download PDFInfo
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- CN106092603B CN106092603B CN201610423414.4A CN201610423414A CN106092603B CN 106092603 B CN106092603 B CN 106092603B CN 201610423414 A CN201610423414 A CN 201610423414A CN 106092603 B CN106092603 B CN 106092603B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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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
- H01M10/63—Control systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
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Abstract
The invention discloses a kind of test macro of power system of electric automobile and electric cars.Power system of electric automobile includes frequency converter and the power motor that connect with frequency converter, and test macro includes: vehicle mounted dynamic battery, the input terminal of the output end connection frequency converter of the vehicle mounted dynamic battery；Heat management pipeline, for executing heat management to vehicle mounted dynamic battery；The quick charger being connect with vehicle mounted dynamic battery；The load motor being connect with power motor；Power analyzer is separately connected with the output end of the output end of vehicle mounted dynamic battery, the output end of frequency converter and power motor.The present invention replaces special DC power supply using vehicle mounted dynamic battery, can reduce cost, and reduce installation workload.
Description
Technical field
The present invention relates to dynamic test technical field, in particular to the test macro and electricity of a kind of power system of electric automobile
Electrical automobile.
Background technique
Energy shortage, oil crisis and environmental pollution grow in intensity, and bring tremendous influence, direct relation to people's lives
To the sustainable development of national economy and society.Countries in the world are all in active development new energy technology.Electric car is as a kind of
Reduce the new-energy automobile of consumption of petroleum, low pollution, low noise, it is considered to be solve the important way of energy crisis and environmental degradation
Diameter.Hybrid vehicle combines the advantage of pure electric automobile and traditional combustion engine automobile, is meeting vehicle dynamic quality requirement
Under the premise of being required with continual mileage, effectively improve fuel economy, reduce discharge, it is considered to be current energy conservation with subtract
One of active path of row.
The height of electric car conevying efficiency is heavily dependent on the dynamic property of automobile.Dynamic property is that electric car is each
Most basic and most important performance in item performance.The dynamical system of electric car is usually variable-frequency motor drive system, by frequency conversion
Device and power motor composition.Emulation testing is carried out to this dynamical system, is needed additionally with load (electric dynamometer) to power electric
Machine load is powered to power motor with the external direct current power supply of process control, and measured to the power condition of dynamical system
Analysis synchronizes measurement to power supply output, frequency converter output and power motor output, understands automobile power part in practical fortune
The operating condition and working efficiency of power-equipment when row.
In the prior art, it when the dynamical system to electric car is tested, needs to provide for tested power motor
By the special DC power supply of process control.However, this mode has the drawback that
(1), the performance indicator of special DC power supply must satisfy all operating conditions of electromechanical testing, more especially need wink
Between high-power output extreme operating condition, therefore cost is very high.Moreover, the electric distribution that special DC power supply installation and operation needs
(200KW need to be greater than), further it is added significantly to installation and operation cost.
(2), the control software needs of special DC power supply are communicated with vehicle control device, coordinated operation.Therefore, the two
Between software interface, further increase the workload of software development.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of test macro of power system of electric automobile and electric car,
To reduce cost and workload.
It is a kind of for testing the test macro of power system of electric automobile, the power system of electric automobile includes frequency converter
The power motor connecting with the frequency converter, the test macro include:
Vehicle mounted dynamic battery, the output end of the vehicle mounted dynamic battery connect the input terminal of the frequency converter；
Heat management pipeline, for executing heat management to the vehicle mounted dynamic battery；
The quick charger being connect with the vehicle mounted dynamic battery；
The load motor being connect with the power motor；
Power analyzer, with the output end of the vehicle mounted dynamic battery, the output end of the frequency converter and the power electric
The output end of machine is separately connected.
In one embodiment, the vehicle mounted dynamic battery includes multiple battery modules；The vehicle mounted dynamic battery
Heat management pipeline includes: refrigerating circuit；
It is heat-treated circuit；
Heat exchanger, the heat exchanger assignment is between the refrigerating circuit and the heat treatment circuit；At the heat
Reason circuit includes: coolant liquid major loop and is parallel to multiple branch lines of the coolant liquid major loop respectively；Each branched pipe
Road includes the water chamber of corresponding battery modules.
In one embodiment, the refrigerating circuit includes: evaporator assemblies；First solenoid valve；Compressor；Condenser
Component；Second solenoid valve；Second water valve is connect with the heat exchanger, and second water valve is also connected with the condenser group
Part and first solenoid valve, first solenoid valve connect the evaporator assemblies；The evaporator assemblies and the heat are handed over
Parallel operation connection.
In one embodiment, the coolant liquid major loop includes: third solenoid valve；4th solenoid valve；5th electromagnetism
Valve；Pump；Positive temperature coefficient heater；Heater assembly；Heat sink assembly；Expansion drum；The third solenoid valve and the heat are handed over
Parallel operation is connected with the entrance of each water chamber；4th solenoid valve is connect with the outlet of each water chamber and the heater assembly；
The positive temperature coefficient heater is connect with the pump and the heat exchanger；The heater assembly and the heat exchanger connect
It connects；The heat sink assembly is connect with the heat exchanger and the 5th solenoid valve；The expansion drum and the radiator group
Part is connected with the heat exchanger.
In one embodiment, the battery modules, comprising:
Single battery, the single battery include battery frame and the battery core unit being fixed in the battery frame；And
Radiator, the radiator include: the water chamber, and the water chamber is fixed on one end of the battery frame；It leads
Hot plate, the heat-conducting plate have the flat part being bonded with the battery core unit, and the turn-up portion of the fitting water chamber, the flange
One end of portion from the flat part is bent between described one end of the battery frame and the water chamber；Foam, the foam are filled out
It is charged in the gap between the turn-up portion and described one end of the battery frame.
In one embodiment, the extending direction of the water chamber is vertical with the extending direction of the battery core unit；
Angle between the turn-up portion and the flat part is greater than 90 °；
By the turn-up portion towards described in the battery frame when water chamber is fixed on described one end of the battery frame
One end squeezes, so that the foam occurs elastic deformation and generates the elastic force for squeezing the turn-up portion towards the water chamber.
In one embodiment, described one end of the battery frame further comprises fastener, and the fastener is by institute
State described one end that water chamber is fixed on the battery frame；
The fastener includes:
Card slot, the card slot is located at the side of described one end of the battery frame, with the side of water chamber described in clamping；With
Elastic fastening hook, the elastic fastening hook is located at the other side of described one end of the battery frame, with water chamber described in clamping
The other side.
In one embodiment, the quick charger includes anode, cathode and battery management system signal output line,
The anode of the quick charger is connect with the anode of the vehicle mounted dynamic battery；The cathode of the quick charger and the vehicle
Carry the cathode connection of power battery, the battery management systems of the battery management system signal output line and each battery modules from
The connection of controller input line.
In one embodiment, it is connected between the output end of the power motor and the input terminal of the load motor
There is torque sensor；
The torque sensor, for providing power motor tach signal and power motor torque letter to power analyzer
Number.
A kind of electric car, the electric car include test macro as described above.
It can be seen from the above technical proposal that the power system of electric automobile of the application includes frequency converter and connects with frequency converter
The power motor connect, test macro include: vehicle mounted dynamic battery, and wherein the output end connection frequency converter of vehicle mounted dynamic battery is defeated
Enter end；Heat management pipeline, for executing heat management to vehicle mounted dynamic battery；The quick charger being connect with vehicle mounted dynamic battery；
The load motor being connect with power motor；Power analyzer, with the output end of vehicle mounted dynamic battery, the output end of frequency converter and dynamic
The output end of force motor is separately connected.As it can be seen that the present invention replaces special DC power supply using vehicle mounted dynamic battery, can reduce into
This, and reduce installation workload.Moreover, by configuring battery management system and quick charger for vehicle mounted dynamic battery, this
Invention can guarantee the working condition measurement of the high-power continuous discharge of electrokinetic cell system, be particularly suitable for power system of electric automobile survey
Examination.
In addition, the application is by passing through heat exchanger for the refrigerating circuit in the heat treatment circuit of battery modules and automobile itself
It is integrated, realizes the heat transfer method of effectively optimizing, realize vehicle-mounted for being tested for power system of electric automobile
The efficient control of each battery modules internal temperature, reduces the heat loss of system in power battery, significantly improves battery mould
The performance of group and service life, accelerate automobile research progress.
In addition, the present invention is by rationally designing battery cell frame, radiating fin in vehicle mounted dynamic battery in battery modules
The structure and relative positional relationship of piece and water chamber can accurately obtain various data required for electric vehicle is researched and developed.In addition,
The present invention realizes efficient system thermal transmitting with less system element, can not only reduce system complexity, may be used also
It is adjusted flexibly with realizing, while largely saving cost.
Detailed description of the invention
Only illustratively description and explain the present invention for the following drawings, not delimit the scope of the invention.
Fig. 1 is the structure chart of the test macro of power system of electric automobile in the present invention.
Fig. 2 is the structure chart of the heat management system of battery modules in the present invention.
Fig. 3 is the schematic diagram of battery modules in the present invention.
Fig. 4 is the schematic diagram of the heat management system of battery modules in the present invention.
Fig. 5 is the partial side view of the radiator of existing single battery.
Fig. 6 is the partial side view of battery modules of the invention in one direction.
Fig. 7 is the structural schematic diagram of the radiator of single battery of the invention.
Fig. 8 is the structural schematic diagram of the heat-conducting plate in the present invention.
Fig. 9 is the side view of the heat-conducting plate in the present invention.
Figure 10 is the partial side view of the radiator of single battery of the invention in the other directions.
Figure 11 is the fast charge schematic diagram of battery modules in the present invention.
Label declaration:
In Fig. 1: vehicle mounted dynamic battery 101；Frequency converter 102；Heat management pipeline 103；Quick charger 104；Power electric
Machine 105；Load motor 106；Torque sensor 107；Power analyzer 108；Power system of electric automobile 201.
In Fig. 2: refrigerating circuit 51；It is heat-treated circuit 52；Heat exchanger 53；Coolant liquid major loop 54；Branch line 55；
Water chamber 21；Evaporator assemblies 56；First solenoid valve V1；Condenser assembly 57；Second solenoid valve V2；Third solenoid valve V3；4th
Solenoid valve V4；5th solenoid valve V5；Pump 58；Positive temperature coefficient heater 59；Heater assembly 60；Heat sink assembly 61, expansion
Tank 62；Water chamber entrance 63；Water chamber outlet 64；Compressor 65.
In Fig. 3: water chamber entrance 63；Water chamber outlet 64；Water chamber 21.
In Fig. 4, battery modules 30；Pump 58；Positive temperature coefficient heater 59；Heat sink assembly 61, expansion drum 62.
In Fig. 5, single battery 1；Battery frame 1a；Battery core unit 1b；Water chamber 2；Heat-conducting plate 3；Flat part 3a；Turn-up portion
3b；Thermal conductive silicon rubber mat 4；
In Fig. 6~Figure 10, single battery 10；Battery frame 11；Battery core unit 12；Fastener 13；Card slot 13a；Elastic card
Hook 13b；Radiator 20；Water chamber 21；Heat-conducting plate 22；Flat part 22a；Turn-up portion 22b；Angle between flat part and turn-up portion
α；Foam 23；Battery modules 30.
Specific embodiment
In order to which the technical features, objects and effects of invention are more clearly understood, the Detailed description of the invention present invention is now compareed
Specific embodiment, identical label indicates identical part in the various figures.
Herein, " schematic " expression " serving as examplea, instances, or illustrations " should not will be described herein as " showing
Any diagram, the embodiment of meaning property " are construed to technical solution that is a kind of preferred or more having advantages.
To make simplified form, part related to the present invention is only schematically shown in each figure, and does not represent it
Practical structures as product.In addition, so that simplified form is easy to understand, with the portion of identical structure or function in some figures
Part only symbolically depicts one of those, or has only marked one of those.
In view of various defects caused by special DC power supply are provided in the prior art for tested power motor, the application is provided
A kind of inexpensive alternative solution of suitable electric automobile motor test power supply, can using it is a set of it is simpler, easy, low at
Originally, efficient method guarantees that tested motor in the case where being detached from fixed DC power supply, utilizes vehicle-mounted power battery system
System, completes the test assignment of each operating condition, meets the needs of vehicle performance, for electric car research and development provide it is timely objectively according to
According to.
Fig. 1 is the structure chart of the test macro of power system of electric automobile in the present invention.
As shown in Figure 1, power system of electric automobile 201 includes frequency converter 102 and connect with the output end of frequency converter 102
Power motor 105.Test macro includes:
Vehicle mounted dynamic battery 101, wherein the output end of vehicle mounted dynamic battery 101 connects the input terminal of frequency converter 102；
The quick charger 104 being connect with vehicle mounted dynamic battery 101；
The load motor 106 being connect with power motor 105；
Vehicle mounted dynamic battery 101 is used to provide test electrical power for power motor 105.Frequency converter 102 is to utilize electric power half
Power frequency supply is transformed to the electric energy control device of another frequency by the on-off action of conductor device, is able to achieve to power motor 105
Soft start, frequency control, improve running accuracy, change power factor, the functions such as overcurrent/over-voltage/overload protection.Load motor
106 (electric dynamometers) are used to load to power motor 105, the state in simulated automotive actual motion.Entire dynamical system
Running part needs to measure its power condition analysis, output of the power analyzer 108 to vehicle mounted dynamic battery 101
The output quantity of amount, the output quantity of frequency converter 102 and power motor 105 synchronizes measurement, exists to understand automobile power part
The operating condition and working efficiency of power-equipment when actual motion.In one embodiment, in power motor 105 and load electricity
Torque sensor 107 is arranged between machine 106.Torque sensor 107 is used as power motor for providing to power analyzer 108
The power motor tach signal and power motor torque signal of 105 output quantities.The specific test process of power system of electric automobile
The present invention repeats no more.
For example, vehicle mounted dynamic battery 101 may include: 8 concatenated lithium ion battery mould groups.Heat management pipeline 103 can
To include: that battery modules coolant line, coolant pump, cooling water radiator (band fan), coolant liquid refrigerator, coolant liquid add
Hot device, expansion drum and heat management control software etc..
Based on battery thermal management system 103, vehicle mounted dynamic battery 101 is adapted to each main during electromechanical testing
Operating condition.It is assumed that: threshold value 1 is the temperature median that battery modules comfortably work；Threshold value 2 is in the temperature that battery modules comfortably work
Limit；Threshold value 3 is the limiting temperature upper limit that battery modules work normally；Threshold value 4 is the lowest temperature that battery modules comfortably work；Threshold
Value 5 is the limiting temperature lower limit that battery modules work normally.
(1) for low power discharge operating condition under room temperature
For vehicle mounted dynamic battery 101 in low power discharge, generation heat is less, and temperature is not up to threshold value 1.At this point, by cold
But liquid pump drives coolant liquid circulation, and heat is brought through coolant line to radiator from battery modules, and radiator fan is not at this time
Work.
(2) for middle power discharge operating condition under room temperature
In vehicle mounted dynamic battery 101 when power discharge, generates heat and increase, temperature reaches threshold value 1.At this point, by coolant liquid
Pump drives coolant liquid circulation, heat is brought through coolant line to radiator from battery modules, radiator fan starts work at this time
Make.
(3) for high power discharge operating condition under room temperature
When 101 high power discharge of vehicle mounted dynamic battery, generates heat and increase significantly, temperature reaches threshold value 2.At this point, by cold
But liquid pump drives coolant liquid circulation, heat is brought through coolant line to refrigerator from battery modules, refrigerator is by air-conditioning at this time
The refrigerant of system carries out heat exchange.
(4) for electric discharge, charging operating condition under cryogenic conditions
When vehicle mounted dynamic battery 101 is in low temperature environment, internal resistance increases, and efficiency reduces.When battery temperature is lower than threshold value 4
When, coolant liquid circulation is driven by coolant pump, heat is brought through coolant line to battery modules from coolant heater, to mention
High battery temperature.When battery temperature is higher than threshold value 4, heater stops working, and battery temperature is produced by battery discharge, charging at this time
Raw heat maintains.If shortage of heat, to maintain, battery temperature will be restarted again below threshold value 4, heater.
(5) for electric discharge, charging operating condition under extreme condition
When 101 temperature of vehicle mounted dynamic battery is lower than threshold value 5 or is higher than threshold value 3, system is notified that BMS cuts off power battery
Output.Heater (being lower than threshold value 5) or refrigerator (being higher than threshold value 3) and coolant pump carry out heat exchange simultaneously, until
When battery temperature is higher than threshold value 4 or is lower than threshold value 2, notice battery management system restores power battery output.
As it can be seen that by heat management 103, present invention can ensure that survey of the vehicle mounted dynamic battery 101 using various load environment
Trial work condition.
Since power motor measurement condition is complicated, it inevitably will appear the operating condition to the high-power continuous discharge of electrokinetic cell system
Test, high-power quick charge is the function of battery system indispensability, therefore embodiment of the present invention is also further vehicle-mounted dynamic
Power battery 101 arranges quick charger 104.
In one embodiment, quick charger 104 includes anode, cathode and battery management system signal output line,
The anode of quick charger 104 is connect with the anode of vehicle mounted dynamic battery 101；The cathode and onboard power of quick charger 104
The cathode of battery 101 connects, in the battery management system signal output line and vehicle mounted dynamic battery 101 of quick charger 104
The battery management system of each battery modules is connected from controller input line.
Moreover, embodiment of the present invention also provide it is vehicle-mounted dynamic in a kind of test macro of suitable power system of electric automobile
The heat management system of power battery.In embodiments of the present invention, the heat treatment of battery modules each in vehicle mounted dynamic battery is returned
Road and the refrigerating circuit of automobile itself are integrated by heat exchanger, realize the heat transfer method of effectively optimizing.Guarantee battery
Mould group can be under complex working condition (big multiplying power continues charge/discharge), and internal all battery cores work within a reasonable temperature range,
The temperature uniformity of each battery core is maintained simultaneously, gives full play to that lithium ion battery is bigger than energy, it is low with self-discharge rate to have extended cycle life
Advantage, meet the needs of vehicle performance.
Fig. 2 is the structure chart of the heat management system of the battery modules of vehicle mounted dynamic battery in the present invention.
From Figure 2 it can be seen that the system includes:
Refrigerating circuit 51；
It is heat-treated circuit 52；
Wherein, refrigerating circuit 51 is occupant's air-conditioning refrigeration loop possessed by automobile itself.It will be electric by heat exchanger 53
The heat treatment circuit 52 of Chi Mo group and the refrigerating circuit 51 of automobile itself are integrated.Heat exchanger 53 is used to make heat from hot fluid
It is transmitted to cold fluid, to meet the device that defined technique requires.Heat exchanger 53 can differently classify, by its operation
Process can be divided into dividing wall type, hybrid, heat accumulating type (or back-heating type) three categories；It can be divided by the compactness on its surface compact
Two class of formula and non-close-coupled.
Specifically, refrigerating circuit 51 includes: the evaporator assemblies 56 connecting with heat exchanger 53；Connect with evaporator assemblies 56
The the first solenoid valve V1 connect；The condenser assembly 57 being connect with heat exchanger 53；The second solenoid valve being connect with heat exchanger 53
V2, the second water valve V2 are also connected with condenser assembly 57 and the first solenoid valve V1.Evaporator assemblies 56 include evaporator and its fan；
Condenser assembly 57 includes condenser and its fan.
Being heat-treated circuit 52 includes: the third solenoid valve V3 and the 5th solenoid valve being connected with the entrance 63 of each water chamber 21
V5；The pump 58 and the 4th solenoid valve V4 being connected with the outlet 64 of each water chamber 21；The positive temperature coefficient (PTC) being connect with pump 58
Heater 59, the positive temperature coefficient heater 59 connect heat exchanger 53；The heater assembly 60 being connect with the 4th solenoid valve V4,
The heater assembly 60 connects heat exchanger 53；The heat sink assembly 61 connecting with heat exchanger 53, the heat sink assembly 61 connect
Meet the 5th solenoid valve V5；The expansion drum 62 connecting with heat sink assembly 61, which connects heat exchanger 53, wherein heating
Device assembly 60 includes heater and its fan；Heat sink assembly 61 includes radiator and its fan.
In the first operating condition, ptc heater 59 is not heated, and heat exchanger 3 is in refrigerating circuit 51 and heat treatment circuit
Heat exchange action is not played among 52, third solenoid valve V3 is disconnected at this time, and third solenoid valve V4 is disconnected, and the 5th solenoid valve V5 is connected.
At this point, coolant liquid is flowed out from the outlet (64) of water chamber 21, respectively via pump 58, ptc heater 59, heat exchanger 53 and radiator
The entrance 63 of the return water chamber 21 of component 61.In the first operating condition, heat sink assembly 61 is cooling based on air at room temperature, executes battery mould
The heat sinking function of group.
In the second operating condition, ptc heater 59 is not heated, heat exchanger 3 refrigerating circuit 51 and heat treatment circuit 52 it
In play heat exchange action, and the first solenoid valve V1 is disconnected, and second solenoid valve V2 is connected, third solenoid valve V3 is connected, third electricity
Magnet valve V4 is disconnected, and the 5th solenoid valve V5 is disconnected.At this point, the cold air that compressor 65 generates flows through hot friendship by second solenoid valve V2
Parallel operation 53.Coolant liquid is flowed out from the outlet of water chamber 21 64, is returned via ptc heater 59, heat exchanger 53 and third solenoid valve V3
The entrance 63 of backwater room 21.In the second operating condition, the heat sinking function of battery modules is executed by refrigerating circuit 51.
In third operating condition, ptc heater 59 is heated, and heat exchanger 3 is in refrigerating circuit 51 and heat treatment circuit 52
Among do not play heat exchange action, at this time third solenoid valve V3 connect, the 4th solenoid valve V4 disconnect, the 5th solenoid valve V5 disconnect.This
When, coolant liquid is flowed out from the outlet of water chamber 21 64, is returned via pump 58, ptc heater 59, heat exchanger 53 and third solenoid valve V3
The entrance 63 of backwater room 21.In third operating condition, ptc heater 59 executes the heating function of battery modules.
Fig. 3 is the schematic diagram of battery modules in the present invention.Fig. 4 is that the Heat transfer systems of battery modules in the present invention show
It is intended to.In figs. 3 and 4, power battery shares 8 battery modules, there is a water chamber inside each battery modules.Water chamber is cooling
Import, the outlet of liquid are furnished with quick coupling, and by quick coupling, hose, each water chamber parallel connection accesses coolant liquid main pipe rail.It is cooling
Circulating pump, temperature, flow sensor, electric control water valve, radiator, refrigerator, heater, expansion tank etc. are configured on liquid main pipe rail
Device.
The heat management system of battery modules is described in detail above.As it can be seen that in embodiments of the present invention, by battery modules
Heat treatment circuit and the refrigerating circuit of automobile itself be integrated by heat exchanger, realize the heat transfer side of effectively optimizing
Method.
In fact, heat management part water chamber is also to influence heat management efficiency and quality with the contact of battery modules heat-conducting plate
It is crucial.
Fig. 5 shows the partial side view of the radiator of existing single battery.As shown in figure 5, the single battery 1
Radiator includes water chamber 2, heat-conducting plate 3 and thermal conductive silicon rubber mat 4.Wherein, single battery 1 includes battery frame 1a and is arranged in electricity
Battery core unit 1b in the frame 1a of pond, water chamber 2 are fixed on one end of battery frame 1a, the setting of silicagel pad 4 water chamber 2 and battery frame 1a it
Between, thermal conductive silicon rubber mat 4 is bonded water chamber 2.Heat-conducting plate 3 includes and the battery core unit 1b flat part 3a being bonded and and heat conductive silica gel
Pad 4 be bonded turn-up portion 3b, one end of turn-up portion 3b from flat part 3a be bent to battery frame 1a one end and thermal conductive silicon rubber mat 4 it
Between, a side of turn-up portion 3b is arranged in one end of battery frame 1a and is provided by it support, another side is bonded thermal conductive silicon
Rubber mat 4.
Since heat-conducting plate 3 and water chamber 2 are rigid structure, contact between the two is mostly line contact, therefore setting is being led
Thermal conductive silicon rubber mat 4 between hot plate 3 and water chamber 2 can fill the gap between water chamber 2 and heat-conducting plate 3, increase thermal conductive contact face
Product.But since the heat transfer efficiency of thermal conductive silicon rubber mat 4 is limited, the heat management efficiency that is directly contacted without water chamber 2 with heat-conducting plate 3
Height, therefore the heat management limited efficacy of this structure.
In order to solve the technical issues of heat-conducting plate cannot be contacted well with single battery in the prior art, the present invention provides
A kind of radiator of single battery can ensure that heat-conducting plate is contacted with the good of single battery.
Fig. 6 is the partial side view of battery modules of the invention in one direction.Fig. 7 is single battery of the invention
The structural schematic diagram of radiator.In conjunction with shown in Fig. 6 and Fig. 7, a kind of battery modules 30 are present embodiments provided comprising one
Or multiple single batteries 10, and the radiator 20 for single battery 10.Wherein, single battery 10 include battery frame 11 with
And the battery core unit 12 in battery frame 11.
Radiator 20 includes:
Heat-conducting plate 22, heat-conducting plate 22 are used for the heat transfer between battery core unit 12 and water chamber 21, therefore as shown in connection with fig. 7,
Heat-conducting plate 22 has the flat part 22a being bonded with battery core unit 12, and the turn-up portion 22b of fitting water chamber 21.Wherein, turn-up portion
One end of 22b from flat part 22a are bent between one end of battery frame 11 and water chamber 21；With
Wherein, water chamber 21 can be arranged into the Heat transfer systems of battery modules shown in FIG. 1.
As shown in fig. 6, in the present embodiment, heat-conducting plate 22 is directly contacted by turn-up portion 22b with water chamber 21, to guarantee
Enough heat transfer guaranteed between battery core unit 12 and water chamber 21 to the maximum extent.Flexible foam 23 is filled with turn-up portion
Gap between 22b and one end of battery frame 11, so that the support force towards 21 direction of water chamber is provided for heat-conducting plate 22, to guarantee
It is good between heat-conducting plate 22 and water chamber 21 to contact.
Further, in conjunction with shown in Fig. 6 and Fig. 9, the extending direction of water chamber 21 is vertical with the extending direction of battery core unit 12,
Angle α between turn-up portion 22b and flat part 22a is greater than 90 °, when water chamber 21 is fixed on one end of battery frame 11, due to water
Room 21 is bonded with turn-up portion 22b's, and water chamber 21 squeezes turn-up portion 22b towards one end of battery frame 11, so that foam 23 occurs
Elastic deformation is filled in the gap between turn-up portion 22b and one end of battery frame 11 due to foam 23, and foam 23 can
Generate the elastic force for squeezing turn-up portion 22b towards water chamber 21.
If the angle α between turn-up portion 22b and flat part 22a is equal to 90 °, i.e. turn-up portion 22b and water chamber 21 are flat
Row, then in order to realize that the fitting between turn-up portion 22b and water chamber 21 contacts, need very high between heat-conducting plate 22 and water chamber 21
Installation accuracy just can guarantee very close to each other between turn-up portion 22b and water chamber 21 and well contact.And in the present embodiment, turn-up portion
Angle α between 22b and flat part 22a is greater than 90 °, i.e. turn-up portion 22b is tilted towards water chamber 21.Then electricity is fixed in water chamber 21
When one end of pond frame 11, since turn-up portion 22b is tilted towards water chamber 21, the inevitable one end towards battery frame 11 of water chamber 21, which squeezes, to be turned over
Edge 22b, makes it be moved to the position parallel with water chamber 21 towards one end of battery frame 11, and heat-conducting plate 22 is typically centainly
The metal material of elasticity is made, therefore turn-up portion 22b has the trend mobile towards water chamber 21 under the action of elastic deformation, from
And guarantees turn-up portion 22b and contacted with the good of water chamber 21.
Further, due to filling flexible foam 23 between turn-up portion 22b and one end of battery frame 11, to turn over
Edge 22b provides support, then towards the mobile extruding foam 23 of battery frame 11 and it is made to generate elastic deformation in turn-up portion 22b,
Therefore foam 23 generates the elastic force towards water chamber 21 to turn-up portion 22b, to be further ensured that the good of turn-up portion 22b and water chamber 21
Contact.In this way, leading to the elasticity of heat-conducting plate 22 itself since the angle α between turn-up portion 22b and flat part 22a is greater than 90 °
Deformation and the elastic deformation of foam 23, elastic force provided by these elastic deformations can guarantee that turn-up portion 22b and water chamber 21 are real
Existing good plane-plane contact, to guarantee maximum heat management efficiency.
Through testing, the angle α between turn-up portion 22b and flat part 22a is 91 °.
As illustrated in fig. 7 and fig. 10, one end of battery frame 11 further comprises fastener 13, since water chamber 21 is fixed on electricity
On one end of pond frame 11.Wherein, fastener 13 includes:
When water chamber 21 to be fixed to one end of battery frame 11, the side of water chamber 21 is held in card slot 13a first, i.e.,
Card slot 13a, then towards the mobile water chamber 21 of battery frame 11, makes the other side contact resilient card of water chamber 21 around the side of water chamber 21
Hook 13b simultaneously brings it about elastic deformation, and elastic fastening hook 13b is generated along the elastic deformation on the direction of card slot 13a, so that
The other side of water chamber 21 is held in elastic fastening hook 13b, i.e. elastic fastening hook 13b is around the other side of water chamber 21, card slot 13a and bullet
Equivalent width of the distance between the property grab 13b with water chamber 21.In this way, by the way that water chamber 21 is limited to card slot 13a and elastic card
Hook 13b, and pass through card slot 13a and elastic fastening hook 13b to the circular restriction water chamber 21 of water chamber 21 along away from battery frame 11
Water chamber 21 is fixed on one end of battery frame 11 by the movement on direction, fastener 13.
Preferably, foam 23 is attached on the end face of battery frame 11 by gum, and is located at card slot 13a and elastic fastening hook
Between 13b.
Electric car usually all has battery management system (BMS).BMS is connection vehicle mounted dynamic battery and electric car
Important tie, major function include: battery physical parameter real-time monitoring；Battery status estimation；Inline diagnosis and early warning；Fill,
Electric discharge is controlled with preliminary filling；Balanced management and heat management etc..Can by embodiment of the present invention proposes battery modules 30 be applied to
In various types of BMS.
Moreover, it is also possible to by embodiment of the present invention proposes vehicle mounted dynamic battery battery modules 30 be applied to it is various types of
In the electric car of type, including pure electric automobile (BEV), hybrid vehicle (PHEV) or fuel cell car (FCEV), etc.
Deng.Certainly, how which realizes that installation in the car is not emphasis of the invention, and those skilled in the art can be with
Implement the installation of battery modules 30 in the car in any way, repeats no more herein.
Figure 11 is the fast charge schematic diagram of battery modules in the present invention.
As shown in figure 11, the vehicle mounted dynamic battery in the test macro of power system of electric automobile includes 8 battery modules,
Respectively battery modules 1, battery modules 2 ... battery modules 8.Vehicle mounted dynamic battery has battery management system master controller, and
And each battery modules are respectively provided with oneself battery management system from controller.Battery management system master controller includes monomer
Functional modules and the communication modules, control module and power module such as balanced, the monomer temperature detection of voltage detecting, monomer voltage.
Communication module and the battery management system of each battery modules are separately connected from controller.
Quick charger includes anode, cathode and battery management system signal output line.The anode and vehicle of quick charger
The anode connection of power battery is carried, the cathode of quick charger and the cathode of vehicle mounted dynamic battery connect, quick charger and control
Computer connection processed.The battery management system signal output line of quick charger and the battery management system of each battery modules from
The connection of controller input line.Quick charger is also connect with the communication module in battery management system master controller.
Control signal input based on control computer, quick charger can be to choosing by the connection with communication module
One or more battery management system from controller issue instruct, it is quick to be selected as correspondingly one or more battery mould group
Charging.For example, quick charger passes through the company with communication module when expectation is to 3 quick charge of battery modules 1 and battery modules
Connect to battery management system corresponding to battery modules 1 battery management system corresponding to the controller 1 and battery modules 3 from
Controller 3 issues charging instruction, and is 3 quick charge of battery modules 1 and battery modules by the electric discharge of anode and cathode.Cause
This, even if power motor measurement condition is complicated, the present invention it is also ensured that the high-power continuous discharge of electrokinetic cell system operating condition
Test.
In conclusion the power system of electric automobile of the application includes frequency converter and the power motor that connect with frequency converter,
Test macro includes: vehicle mounted dynamic battery, wherein the input terminal of the output end connection frequency converter of vehicle mounted dynamic battery；Heat management pipe
Road, for executing heat management to vehicle mounted dynamic battery；The quick charger being connect with vehicle mounted dynamic battery；It is connect with power motor
Load motor；Power analyzer, the output end with the output end of vehicle mounted dynamic battery, the output end of frequency converter and power motor
It is separately connected.The present invention replaces special DC power supply using vehicle mounted dynamic battery, can reduce cost, and reduce installment work
Amount.
Moreover, by configuring battery management system and special quick charger for vehicle mounted dynamic battery, the present invention can be with
Guarantee the working condition measurement of the high-power continuous discharge of electrokinetic cell system.
In addition, the application is by passing through heat exchanger for the refrigerating circuit in the heat treatment circuit of battery modules and automobile itself
It is integrated, realizes the heat transfer method of effectively optimizing, realize for inside battery modules each in vehicle mounted dynamic battery
The efficient control of temperature, reduces the heat loss of system, significantly improves performance and the service life of battery modules, accelerates vehicle and open
Hair progress.
In addition, structure of the present invention by battery cell frame, radiating fin and water chamber in rational design battery modules
And relative positional relationship, it can accurately obtain various data required for electric vehicle is researched and developed.
It is transmitted in addition, the present invention realizes efficient system thermal with less system element, can not only reduce system
Complexity can also be realized and be adjusted flexibly, while largely save cost.
Herein, "one" is not offered as being limited to the quantity of relevant portion of the present invention " only this ", and " one
It is a " it does not indicate to exclude the situation of the quantity " more than one " of relevant portion of the present invention.
Herein, "upper", "lower", "front", "rear", "left", "right", "inner", "outside" etc. are only used for indicating relevant portion
Between relative positional relationship, and the absolute position of these non-limiting relevant portions.
The series of detailed descriptions listed above only for feasible embodiment of the invention specifically
Protection scope that is bright, and being not intended to limit the invention, it is all without departing from equivalent embodiments made by technical spirit of the present invention or
Change, such as the combination, segmentation or repetition of feature, should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of for testing the test macro of power system of electric automobile, which is characterized in that the power system of electric automobile
Including frequency converter and the power motor connecting with the frequency converter, the test macro includes:
Vehicle mounted dynamic battery, the output end of the vehicle mounted dynamic battery connect the input terminal of the frequency converter；
Heat management pipeline, for executing heat management to the vehicle mounted dynamic battery；
The quick charger being connect with the vehicle mounted dynamic battery；
The load motor being connect with the power motor；
Power analyzer, with the output end of the vehicle mounted dynamic battery, the output end of the frequency converter and the power motor
Output end is separately connected, with the output quantity of output quantity, the frequency converter to the vehicle mounted dynamic battery and the power motor
Output quantity synchronize measurement；
The vehicle mounted dynamic battery includes multiple battery modules；The heat management pipeline of the vehicle mounted dynamic battery includes:
Refrigerating circuit；
It is heat-treated circuit；
Heat exchanger, the heat exchanger assignment is between the refrigerating circuit and the heat treatment circuit；It is described to be heat-treated back
Road includes: coolant liquid major loop and is parallel to multiple branch lines of the coolant liquid major loop respectively；Each branch line packet
Include the water chamber of corresponding battery modules；
Wherein:
For low power discharge operating condition under room temperature: vehicle mounted dynamic battery temperature is not up to threshold value 1, is driven by coolant pump cold
But liquid recycles, and heat is brought through coolant line to radiator from battery modules, and radiator fan does not work；
For middle power discharge operating condition under room temperature: vehicle mounted dynamic battery temperature reaches threshold value 1, is driven and is cooled down by coolant pump
Liquid circulation, heat are brought through coolant line to radiator, radiator fan work from battery modules；
For high power discharge operating condition under room temperature: vehicle mounted dynamic battery temperature reaches threshold value 2, is driven and is cooled down by coolant pump
Liquid circulation, heat are brought through coolant line to refrigerator from battery modules, and refrigerator carries out heat friendship by the refrigerant of air-conditioning system
It changes；
For under cryogenic conditions discharge, charge operating condition: when vehicle mounted dynamic battery temperature be lower than threshold value 4, driven by coolant pump cold
But liquid recycles, and heat is brought through coolant line to battery modules from coolant heater；When vehicle mounted dynamic battery temperature is higher than threshold
Value 4, heater stops working, and vehicle mounted dynamic battery temperature is maintained by the heat that battery discharge, charging generate；If shortage of heat
To maintain, vehicle mounted dynamic battery temperature is again below threshold value 4, heater restarting；
For discharging under extreme condition, charge operating condition: when vehicle mounted dynamic battery temperature is lower than threshold value 5 or is higher than threshold value 3, cutting
Power battery output, while heater or refrigerator and coolant pump carry out heat exchange, until battery temperature is higher than threshold
Value 4 or be lower than threshold value 2 when, restore vehicle mounted dynamic battery output；
Wherein threshold value 1 is the temperature median that battery modules comfortably work；Threshold value 2 is in the temperature that battery modules comfortably work
Limit；Threshold value 3 is the limiting temperature upper limit that battery modules work normally；Threshold value 4 is the lowest temperature that battery modules comfortably work；Threshold
Value 5 is the limiting temperature lower limit that battery modules work normally.
2. according to claim 1 for testing the test macro of power system of electric automobile, which is characterized in that the system
Cold loop includes: evaporator assemblies；First solenoid valve；Compressor；Condenser assembly；Second solenoid valve；The second solenoid valve
It being connect with the heat exchanger, the second solenoid valve is also connected with the condenser assembly and first solenoid valve, and described
One solenoid valve connects the evaporator assemblies；The evaporator assemblies are connect with the heat exchanger.
3. according to claim 1 for testing the test macro of power system of electric automobile, which is characterized in that described cold
But liquid major loop includes: third solenoid valve；4th solenoid valve；5th solenoid valve；Pump；Positive temperature coefficient heater；Heater group
Part；Heat sink assembly；Expansion drum；The third solenoid valve is connect with the entrance of the heat exchanger and each water chamber；Described
Four solenoid valves are connect with the outlet of each water chamber and the heater assembly；The positive temperature coefficient heater and the pump and institute
State heat exchanger connection；The heater assembly is connect with the heat exchanger；The heat sink assembly and the heat exchanger
It is connected with the 5th solenoid valve；The expansion drum is connect with heat sink assembly and the heat exchanger.
4. according to claim 1 for testing the test macro of power system of electric automobile, which is characterized in that the electricity
Chi Mo group includes:
Single battery, the single battery include battery frame and the battery core unit being fixed in the battery frame；And
Radiator, the radiator include: the water chamber, and the water chamber is fixed on one end of the battery frame；Heat-conducting plate,
The heat-conducting plate has the flat part being bonded with the battery core unit, and the turn-up portion of the fitting water chamber, and the turn-up portion is certainly
One end of the flat part is bent between described one end of the battery frame and the water chamber；Foam, the foam fill to
In gap between the turn-up portion and described one end of the battery frame.
5. according to claim 4 for testing the test macro of power system of electric automobile, which is characterized in that the water
The extending direction of room is vertical with the extending direction of the battery core unit；
Angle between the turn-up portion and the flat part is greater than 90 °；
By the turn-up portion towards described one end of the battery frame when water chamber is fixed on described one end of the battery frame
It squeezes, so that the foam occurs elastic deformation and generates the elastic force for squeezing the turn-up portion towards the water chamber.
6. according to claim 4 for testing the test macro of power system of electric automobile, which is characterized in that the electricity
Described one end of pond frame further comprises fastener, and the water chamber is fixed on described the one of the battery frame by the fastener
End；
The fastener includes:
Card slot, the card slot is located at the side of described one end of the battery frame, with the side of water chamber described in clamping；With
Elastic fastening hook, the elastic fastening hook is located at the other side of described one end of the battery frame, with the another of water chamber described in clamping
Side.
7. according to claim 4 for testing the test macro of power system of electric automobile, which is characterized in that described fast
Fast charger includes anode, cathode and battery management system signal output line, the anode of the quick charger with it is described vehicle-mounted
The anode connection of power battery；The cathode of the quick charger is connect with the cathode of the vehicle mounted dynamic battery, the battery
Management system signal output line is connect with the battery management system of each battery modules from controller input line.
8. according to claim 1 for testing the test macro of power system of electric automobile, feature described in any one of -7
It is, is connected with torque sensor between the output end of the power motor and the input terminal of the load motor；
The torque sensor, for providing power motor tach signal and power motor torque letter to the power analyzer
Number.
9. a kind of electric car, which is characterized in that the electric car includes test macro as described in claim 1.
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106769091A (en) * | 2016-12-20 | 2017-05-31 | 上海中科深江电动车辆有限公司 | The detecting system of electric automobile power battery system |
| CN106872177B (en) * | 2017-01-20 | 2020-04-03 | 湖北文理学院 | Power system testing method and system for new energy automobile |
| US20180358669A1 (en) * | 2017-06-07 | 2018-12-13 | GM Global Technology Operations LLC | Battery assembly |
| CN109599607B (en) * | 2017-09-30 | 2021-01-19 | 比亚迪股份有限公司 | Temperature regulation system for vehicle-mounted battery |
| KR20200009566A (en) | 2018-07-19 | 2020-01-30 | 현대자동차주식회사 | Battery Heat Management Integrated System and Operation Method therefor |
| CN109100159A (en) * | 2018-09-06 | 2018-12-28 | 南京越博动力系统股份有限公司 | A kind of vehicle data monitoring and performance analysis system |
| CN109346802B (en) * | 2018-09-30 | 2022-02-08 | 蔚来(安徽)控股有限公司 | Temperature adjusting system and method for power battery |
| CN111239603B (en) * | 2020-01-15 | 2022-02-08 | 沈阳工业大学 | Device and method for testing inductance of permanent magnet synchronous reluctance motor for electric vehicle |
| CN111855231A (en) * | 2020-07-28 | 2020-10-30 | 摩登汽车有限公司 | Operating method for calibrating thermal performance parameters of power system of new energy automobile |
| CN113029549A (en) * | 2021-04-29 | 2021-06-25 | 重庆长安新能源汽车科技有限公司 | New energy automobile thermal management system test device |
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