CN108844989A - Battery performance testing system and battery performance test method - Google Patents
Battery performance testing system and battery performance test method Download PDFInfo
- Publication number
- CN108844989A CN108844989A CN201810958448.2A CN201810958448A CN108844989A CN 108844989 A CN108844989 A CN 108844989A CN 201810958448 A CN201810958448 A CN 201810958448A CN 108844989 A CN108844989 A CN 108844989A
- Authority
- CN
- China
- Prior art keywords
- coolant
- subsystem
- refrigerant
- liquid cooling
- battery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a kind of battery performance testing system and battery performance test methods.Battery performance testing system includes：Liquid cooling refrigeration subsystem, the liquid cooling refrigeration subsystem are freezed or are heated to the tested battery；The direct-cooled subsystem of refrigerant, the direct-cooled subsystem of refrigerant freeze to the tested battery；Wherein, when the liquid cooling refrigeration subsystem freezes to the tested battery, the direct-cooled subsystem of refrigerant cools down the coolant in the liquid cooling refrigeration subsystem.Tested battery is freezed or heated using liquid cooling refrigeration subsystem in the application, the direct-cooled subsystem of refrigerant freezes to the coolant in liquid cooling refrigeration subsystem, improve the working efficiency of liquid cooling refrigeration subsystem, feature good using chiller refrigeration effect simultaneously, so that whole system structure simplifies；The direct-cooled subsystem of refrigerant and liquid cooling refrigeration subsystem are to be individually present, and to adapt to different operating conditions, can be applied to the test of different thermal management schemes.
Description
Technical field
The present invention relates to battery performance test technology, in particular to a kind of battery performance testing system and battery performance test
Method.
Background technique
With the rise of electric car, the increase of course continuation mileage, electricity entrained by power battery is more and more, when electric discharge
The heat of generation is also increasing, thus the power battery part of electric car is equipped with heat management system to improve battery and use
Safety and service life.
In order to test the thermal management effect of battery thermal management system, battery is using preceding needing heat management system thermal management effect
Simulation, or a variety of heat management system simulations are carried out, find most suitable thermal management scheme.Existing test equipment is mostly one
Water cooler is tested for single liquid cooling.
Due to being that coolant refrigeration system and heating system are packaged into an entirety using integrated water chiller, so test
Shi Wufa high-freedom degree to each part replacement and control, it is restricted to the experiment test of different operating conditions, not can be carried out a variety of
The replacement of different heat management system schemes, and can only testing liquid cooling equipment, can not carry out that refrigerant is direct-cooled or refrigerant is straight
The cold refrigeration modes test mixed with liquid cooling.
Summary of the invention
Some embodiments of the present invention provide a kind of battery performance testing system, solve existing battery performance test system
System applicable situation is restricted, can not replace the technical issues of component.
A kind of battery performance testing system, including：
Liquid cooling refrigeration subsystem, the liquid cooling refrigeration subsystem are freezed or are heated to the tested battery；
The direct-cooled subsystem of refrigerant, the direct-cooled subsystem of refrigerant freeze to the tested battery；
Wherein, when the liquid cooling refrigeration subsystem freezes to the tested battery, the direct-cooled subsystem pair of refrigerant
Coolant in the liquid cooling refrigeration subsystem is cooled down.
Further, liquid cooling refrigeration subsystem includes：
Coolant storage unit, the coolant storage unit can be heated to its internal coolant is stored in；
Heat exchange unit, the heat exchange unit can freeze to the coolant；The direct-cooled subsystem of refrigerant with
Coolant in the heat exchange unit carries out heat exchange；
Wherein, first circulation circuit is formed between the coolant storage unit and the tested battery；The coolant
Second circulation circuit is formed between storage element, the heat exchange unit and the tested battery.
Further, first circulation circuit and the conducting of at most one, the second circulation circuit.
Further, the coolant liquid in first circulation circuit and the second circulation circuit enters the route of the tested battery
Water pump, flow sensor, temperature sensor and pressure are provided with from the route that the tested battery flows out with the coolant liquid
Sensor.
Further, first circulation circuit and the second circulation circuit are additionally provided with PID control valve.
Further, the direct-cooled subsystem of refrigerant includes：Compressor, condenser, liquid storage drying chamber, the first expansion valve, second
Expansion valve；
Wherein, the compressor, condenser, liquid storage drying chamber, the first expansion valve and the heat exchange list being sequentially connected
Third circulation loop is formed between member；
Shape between the compressor, condenser, liquid storage drying chamber, the second expansion valve and the tested battery being sequentially connected
At the 4th circulation loop.
Further, the at most circuit conducting in third circulation loop and the 4th circulation loop.
It further, further include control unit；
Described control unit sensor, flow sensor, temperature sensor, the pressure sensing with the tested battery respectively
Device is connected with PID control valve.
Embodiments herein additionally provides a kind of battery performance test method, and battery performance test method includes that switching is held
Capable following steps：
Liquid cooling refrigeration step：Freezed using liquid cooling refrigeration subsystem to tested battery；
Liquid cooling heating stepses：Tested battery is heated using liquid cooling refrigeration subsystem；
The direct-cooled step of refrigerant：Freezed using the direct-cooled subsystem of refrigerant to tested battery；And
Battery performance test method further includes the coolant cooling step being performed simultaneously with liquid cooling refrigeration step：Utilize refrigerant
Direct-cooled subsystem cools down the coolant in liquid cooling refrigeration subsystem.
Further, liquid cooling refrigeration subsystem includes coolant storage unit and heat exchange unit, coolant storage unit
It can be heated to its internal coolant is stored in, heat exchange unit can freeze to coolant, and the direct-cooled son of refrigerant
Coolant in system and heat exchange unit carries out heat exchange；Wherein, is formed between coolant storage unit and tested battery
One circulation loop；Second circulation circuit is formed between coolant storage unit, heat exchange unit and tested battery；And/or
The direct-cooled subsystem of refrigerant includes compressor, condenser, liquid storage drying chamber, the first expansion valve, the second expansion valve,
In, third circulation is formed between the compressor, condenser, liquid storage drying chamber, the first expansion valve and the heat exchange unit that are sequentially connected
Circuit；The 4th circulation is formed between compressor, condenser, liquid storage drying chamber, the second expansion valve and the tested battery being sequentially connected
Circuit；And/or
Battery performance test method realizes liquid cooling and first circulation circuit and second circulation circuit are alternatively connected
Switching between refrigeration step and liquid cooling heating stepses, and, battery performance test method is by by third circulation loop and
Four circulation loops are alternatively connected to be switched between coolant cooling step and the direct-cooled step of refrigerant to realize.
According to above-mentioned each embodiment, freezes to tested battery or add using liquid cooling refrigeration subsystem in the application
Heat, the direct-cooled subsystem of refrigerant freeze to the coolant in liquid cooling refrigeration subsystem, realize that refrigerant is direct-cooled mixed with liquid cooling refrigeration
It closes, the working efficiency of liquid cooling refrigeration subsystem, while the feature good using chiller refrigeration effect is improved, so that whole system knot
Structure simplifies；The direct-cooled subsystem of refrigerant and liquid cooling refrigeration subsystem are to be individually present, and can be carried out respectively using to adapt to different works
Condition can be applied to the test of different thermal management schemes.
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 schematic diagram of the battery performance testing system of the embodiment of the present invention；
Fig. 2 is the overall structure figure of the battery performance testing system of the embodiment of the present invention；
Fig. 3 is the liquid cooling cooling flow figure of the embodiment of the present invention；
Fig. 4 is the liquid cooling heating procedure figure of the embodiment of the present invention；
Fig. 5 is the direct-cooled flow chart of refrigerant of the embodiment of the present invention.
Label declaration
1- liquid cooling refrigeration subsystem, the direct-cooled subsystem of 2- refrigerant, 3- are tested battery, 4- control unit；
101- coolant storage unit, 102- heat exchange unit, 103- water pump, 104- flow sensor, 105- temperature pass
Sensor, 106- pressure sensor, 107-PID control valve, 108- first circulation valve, 109- second circulation valve
201- compressor, 202- condenser, 203- liquid storage drying chamber, the first expansion valve of 204-, the second expansion valve of 205-；
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.
Herein, " first ", " second " etc. are only used for mutual differentiation, rather than indicate significance level and sequence and
Existing premise etc. each other.
Referring to Figure 1, in one embodiment, battery performance testing system includes：
Liquid cooling refrigeration subsystem 1, liquid cooling refrigeration subsystem 1 are freezed or are heated to tested battery 3；Liquid cooling refrigeration
What 1 inside of system was circulated is coolant liquid, that is, tested battery 3 is freezed or heated using coolant liquid, this mistake
Cheng Zhong, coolant liquid is there is no phase transformation, that is, temperature-change of internal energy curvilinear motion of coolant liquid is approximate linearly, this is cooling
When liquid freezes to tested battery 3, the uniform temperature rise of coolant liquid, the temperature change of tested battery 3 is uniformly, also
The temperature for being tested battery 3 is steady change；Preferably, coolant is the water and 50% (volume ratio) of 50% (volume ratio)
The mixture of ethylene glycol.
The direct-cooled subsystem 2 of refrigerant, the direct-cooled subsystem 2 of refrigerant freeze to tested battery 3, in the direct-cooled subsystem 2 of refrigerant
What portion was circulated is refrigerant, specifically can be hydrocarbon refrigerant, such as R134a；The temperature change of internal energy of refrigerant
Curve be it is nonlinear, can undergo phase transition when the temperature rises, thus the refrigeration effect of refrigerant becomes apparent from；
Wherein, when liquid cooling refrigeration subsystem 1 freezes to tested battery 3, as indicated by the dashed arrow in fig. 1, refrigerant is straight
Refrigeration subsystem 2 cools down the coolant in liquid cooling refrigeration subsystem 1, and since the refrigeration effect of refrigerant is obvious, use is cold
When the direct-cooled subsystem 2 of matchmaker cools down the coolant in liquid cooling refrigeration subsystem 1, the temperature drop of coolant is become apparent from, also
It is the temperature value that coolant can faster reach needs；The direct-cooled subsystem of refrigerant 2 is made full use of simultaneously, improves its utilization
Rate, and chiller refrigeration effect is good, and more economically, whole system structure is simple, does not need to be further added by other equipment to cooling
Agent is freezed.
In the prior art, performance measurement is carried out to battery, with the most preferred heat management system scheme of determination, existing performance
Measurement system is mostly integrated water cooler or is single liquid cooling system.Integrated water chiller is by coolant refrigeration system and heating system
Be packaged into an entirety, when test can not high-freedom degree to each part replacement and control, thus the experiment to different operating conditions
It tests restricted, not can be carried out the replacement of a variety of different heat management system schemes, and single liquid cooling system can only be to liquid cooling equipment
It is tested, can not carry out that refrigerant is direct-cooled or the direct-cooled refrigeration modes test mixed with liquid cooling of refrigerant.
Tested battery 3 is freezed or heated using liquid cooling refrigeration subsystem 1 in the application, the direct-cooled subsystem of refrigerant
Coolant in 2 pairs of liquid cooling refrigeration subsystems 1 freezes, that is, realizes that refrigerant is direct-cooled and mix with liquid cooling refrigeration, improves liquid
The working efficiency of cold refrigeration subsystem 1, while the feature good using chiller refrigeration effect, so that whole system structure simplifies；
The direct-cooled subsystem 2 of refrigerant and liquid cooling refrigeration subsystem 1 are to be individually present, and can be carried out respectively using can answer to adapt to different operating conditions
Test for different thermal management schemes.
Specifically, as shown in Fig. 2, liquid cooling refrigeration subsystem 1 includes：
Coolant storage unit 101, coolant storage unit 101 can be heated to its internal coolant is stored in,
The specific coolant storage unit 101 can be the constant temperature water tank with heating function, and the constant temperature water tank can arbitrarily be set
The temperature of coolant is set, to reach the use temperature of test requirements document；Preferably, which both controls water temperature, and opens up
There is pressure relief opening, as the discharge port of whole system pressure expansion, increases the safety of whole system, meanwhile, constant temperature water tank is set
It is equipped with moisturizing button, the coolant liquid in system is supplemented.
Heat exchange unit 102, heat exchange unit 102 can freeze to coolant, and heat exchange unit 102 specifically can be
Heat exchanger, in heat exchanger, coolant and refrigerant can mutually carry out heat exchange, be carried out using refrigerant to coolant
Refrigeration, that is, the direct-cooled subsystem 2 of refrigerant carry out heat exchange with the coolant in heat exchange unit 102；
Wherein, between coolant storage unit 101 and tested battery 3 formed first circulation circuit, that is, coolant from
Coolant storage unit 101 enters tested battery 3 and is heated, and coolant temperature is lower after the completion of heating, returns from tested battery 3
It is flow to coolant storage unit 101, such coolant heats tested battery 3 between first circulation circuit；
Second circulation circuit, heat exchange are formed between coolant storage unit 101, heat exchange unit 102 and tested battery 3
After unit 102 freezes to the coolant in coolant storage unit 101, the temperature of coolant is reduced, coolant enter by
Battery 3 to be surveyed to freeze to tested battery 3, coolant temperature increases after the completion of refrigeration, it is back to coolant storage unit 101,
Carry out subsequent cycle.
It is understood that at most one, first circulation circuit and second circulation circuit is connected, it is cold in first circulation circuit
But tested battery 3 is heated in agent, and coolant freezes to tested battery 3 in second circulation circuit, completes heating and system
Smooth switching between cold.
The coolant liquid in first circulation circuit and second circulation circuit enters the route for being tested battery 3 and coolant liquid from tested electricity
The route that pond 3 is flowed out is provided with water pump 103, flow sensor 104, temperature sensor 105 and pressure sensor 106.It is cooling
The circuit that agent is heated and cooled down to tested battery 3 includes that coolant liquid enters the route for being tested battery 3 and coolant liquid from quilt
The route that battery 3 flows out is surveyed, water pump 103, flow sensor 104, temperature sensor 105 and pressure are provided on two routes
Force snesor 106, water pump 103 are used for the pressure of lift line, accelerate the flowing of coolant liquid, and flow sensor 104, temperature pass
Sensor 105 and pressure sensor 106 are respectively used to flow, the temperature and pressure of measurement coolant liquid, flow into and out in coolant liquid
Flow, temperature and pressure are measured on the route of tested battery 3, coolant liquid can be quantitative determined to the cold of tested battery 3
But and heating effect, subsequent that the thermal management scheme optimal to tested battery can be found according to this cooling relationship.
First circulation circuit and the second circulation circuit are additionally provided with 107 (Proportion of PID control valve
Integration Differentiation proportional-integral derivative controller), PID control valve 107 can return the first circulation
Road and second circulation circuit carry out closed-loop control, carry out closed loop to the coolant liquid in entire circuit according to flow, temperature and pressure, make
Accurate, tested obtained result reliability height must be controlled.
The direct-cooled subsystem 2 of refrigerant includes：
Compressor 201, compressor 201 compress refrigerant；
Refrigerant is condensed into liquid by condenser 202, condenser 202；
Liquid storage drying chamber 203, liquid storage drying chamber 203 are stored and are dried to refrigerant；
First expansion valve 204；First expansion valve 204 throttles to refrigerant, so that refrigerant becomes Low Temperature Steam；
Second expansion valve 205, the second expansion valve 205 throttle to refrigerant, so that refrigerant becomes Low Temperature Steam；
Wherein, compressor 201, condenser 202, liquid storage drying chamber 203, the first expansion valve 204 and the heat exchange unit 102 being sequentially connected
Between formed third circulation loop；
Compressor 201, condenser 202, liquid storage drying chamber 203, the second expansion valve 205 and the tested battery 3 being sequentially connected
Between formed the 4th circulation loop.
Compression condensation-throttling to refrigerant is formed respectively between above-mentioned third circulation loop and the 4th circulation loop
Expansion, accordingly, refrigerant is converted between gas-liquids-gas, when refrigerant becomes Low Temperature Steam by expansion valve
When, refrigerant enters heat exchange unit 102 in third circulation loop and coolant carries out heat exchange, freeze to coolant,
In the 4th circulation loop, coolant enters tested battery 3, freezes to tested battery 3.
Not more than circuit conducting in third circulation loop and the 4th circulation loop, when needing to coolant system
When cold, the conducting of third circulation loop, when needing to freeze to tested battery 3, the conducting of the 4th circulation loop, two are recycled back to
On the one hand the utilization rate of refrigerant is improved using same equipment in road, on the other hand, simplify whole system.
The battery performance testing system further includes control unit 4；Control unit 4 respectively with the sensor of tested battery 3, stream
Quantity sensor 104, temperature sensor 105, pressure sensor 106 are connected with PID control valve 107.The tested electricity of the acquisition of control unit 4
The sensor in pond 3, flow sensor 104, temperature sensor 105, pressure sensor 106 signal, will be anti-after the signal processing
PID control of feeding valve 107, PID control valve 107 controls the aperture of itself according to the data that these are measured, to control cooling liquid stream
Amount, and then the temperature by changing coolant liquid changes the temperature of tested battery 3.A control unit 4 is only needed in the system
Other all signals are acquired, connection relationship is simple, while can simplify operation.
Embodiments herein additionally provides a kind of battery performance test method, which includes switching
The following steps of execution：
Liquid cooling refrigeration step：Liquid cooling refrigeration subsystem 1 freezes to tested battery 3；
Liquid cooling heating stepses：Tested battery 3 is heated using liquid cooling refrigeration subsystem 1；
The direct-cooled step of refrigerant：Freezed using the direct-cooled subsystem 2 of refrigerant to tested battery 3；And
The battery performance test method further includes the coolant cooling step being performed simultaneously with liquid cooling refrigeration step：Using cold
The direct-cooled subsystem 2 of matchmaker cools down the coolant in liquid cooling refrigeration subsystem 1.
In the prior art or it is independent liquid cooling or is that refrigerant is direct-cooled, does not can be carried out hybrid refrigeration or heating, this Shen
Please in freeze to refrigerating fluid using refrigerant is direct-cooled, the temperature change when feature and liquid cooling that make full use of coolant refrigeration effect good
Gentle easily controllable feature, the two is used in combination in the same system, improves the utilization rate of refrigerant, while simplifying system
System, so that it is easy to operate, it is easily controllable.
Specifically, liquid cooling refrigeration subsystem 1 includes coolant storage unit 101 and heat exchange unit 102, coolant storage
Memory cell 101 is heated to its internal coolant is stored in, and heat exchange unit 102 can freeze to coolant, and
The direct-cooled subsystem 2 of refrigerant carries out heat exchange with the coolant in heat exchange unit 102；Wherein, coolant storage unit 101 and quilt
It surveys and forms first circulation circuit between battery 3；Shape between coolant storage unit 101, heat exchange unit 102 and tested battery 3
At second circulation circuit；
The direct-cooled subsystem 2 of refrigerant includes compressor 201, condenser 202, liquid storage drying chamber 203, the first expansion valve 204, the
Two expansion valves 205, wherein compressor 201, condenser 202, liquid storage drying chamber 203,204 and of the first expansion valve being sequentially connected
Third circulation loop is formed between heat exchange unit 102；Compressor 201, condenser 202, the liquid storage drying chamber being sequentially connected
203, the 4th circulation loop is formed between the second expansion valve 205 and tested battery 3；
Battery performance test method realizes liquid cooling and first circulation circuit and second circulation circuit are alternatively connected
Switching between refrigeration step and liquid cooling heating stepses, and, battery performance test method is by by third circulation loop and
Four circulation loops are alternatively connected to be switched between coolant cooling step and the direct-cooled step of refrigerant to realize.
Specifically, liquid cooling heating stepses include：Tested battery 3 is heated using liquid cooling refrigeration subsystem 1, the step
It is coolant used in heating, tested battery is heated in coolant temperature raising, and coolant heating and temperature-fall period do not have
There is phase transformation, so that the caloric receptivity that battery 3 is tested in heating process is uniform, temperature steady change.It is first specific to system
Circulation loop conducting, second circulation circuit, third circulation loop and the 4th circulation loop are closed.
More specifically, as shown in figure 3, operating process includes：
S101：The coolant liquid of 101 pairs of inside of coolant storage unit heats；
S102：First circulation valve 108 is opened, second circulation valve 109, the heating of coolant storage unit 101 are closed
Coolant liquid flows through water pump 103, flow sensor 104, PID control valve 107, temperature sensor 105 and pressure sensor 106, into
Enter tested battery 3 and carry out heat exchange, heats tested battery 3；
S103：Coolant liquid is flowed out from tested battery 3, flows through flow sensor 104, temperature sensor 105, pressure sensor
106 and water pump 103, it returns to coolant storage unit 101 and realizes liquid cooling heat cycles.
Liquid cooling refrigeration step includes：The coolant in liquid cooling refrigeration subsystem 1 is carried out using refrigerant direct-cooled subsystem 2 cold
But, that is, by the direct-cooled subsystem 2 of refrigerant freeze to the medium of liquid cooling process of refrigerastion, it is straight that this process improves refrigerants
The utilization rate of refrigeration subsystem 2, while eliminating other pairs of coolants and carrying out cooling equipment, so that system is more simplified.Specific to
System is second circulation circuit and the conducting of third circulation loop, and first circulation circuit and the 4th circulation loop are closed.
More specifically, as shown in figure 4, operating process includes：
S201：Second circulation valve 109 is opened, first circulation valve 108, the cooling of coolant storage unit 101 are closed
Liquid stream carries out heat exchange through heat exchange unit 102 and third circulation loop, and refrigerant freezes to coolant；
S202：Coolant flow after refrigeration is through water pump 103, flow sensor 104, PID control valve 107, temperature sensor
105 and pressure sensor 106, heat exchange, cooling tested battery 3 are carried out into tested battery 3；
S203：Coolant liquid is flowed out from tested battery 3, flows through flow sensor 104, temperature sensor 105, pressure sensor
106 and water pump 103, it returns to coolant storage unit 101 and realizes liquid cooling refrigeration cycle.
The direct-cooled step of refrigerant includes：Freezed using the direct-cooled subsystem 2 of refrigerant to tested battery 3, the direct-cooled subsystem of refrigerant
Circulated is refrigerant to 2 inside of system, can be undergone phase transition when the temperature rises, thus the refrigeration effect of refrigerant is obvious, can be with
Realize test of the system to the performance wider range of tested battery 3.It is that the 4th circulation loop is connected specific to system, first
Circulation loop, second circulation circuit and third circulation loop are closed.
More specifically, as shown in figure 5, operating process includes：
S301：Refrigerant flows out after compressor 201 is compressed；
S302：Refrigerant, which flows through the condensation of condenser 202, becomes liquid；
S303：Refrigerant enters liquid storage drying chamber 203 and is dried；
S304：Refrigerant enters the second expansion valve 205 becomes Low Temperature Steam after throttling；
S305：Refrigerant enters tested battery 3 and freezes to tested battery；
S306：Refrigerant returns to compressor 201 after the outflow of tested battery 3.
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 (10)
1. a kind of battery performance testing system, which is characterized in that including：
Liquid cooling refrigeration subsystem (1), the liquid cooling refrigeration subsystem (1) are freezed or are heated to the tested battery (3)；
The direct-cooled subsystem of refrigerant (2), the direct-cooled subsystem of refrigerant (2) freeze to the tested battery (3)；
Wherein, when the liquid cooling refrigeration subsystem (1) freezes to the tested battery (3), the direct-cooled subsystem of refrigerant
(2) coolant in the liquid cooling refrigeration subsystem (1) is cooled down.
2. battery performance testing system according to claim 1, which is characterized in that liquid cooling refrigeration subsystem (1) packet
It includes：
Coolant storage unit (101), the coolant storage unit (101) can add to its internal coolant is stored in
Heat；
Heat exchange unit (102), the heat exchange unit (102) can freeze to the coolant；The direct-cooled son of refrigerant
Coolant in system (2) and the heat exchange unit (102) carries out heat exchange；
Wherein, first circulation circuit is formed between the coolant storage unit (101) and the tested battery (3)；It is described cold
But second circulation circuit is formed between agent storage element (101), the heat exchange unit (102) and the tested battery (3).
3. battery performance testing system according to claim 2, which is characterized in that the first circulation circuit and described
Two circulation loops at most one conducting.
4. battery performance testing system according to claim 3, which is characterized in that the first circulation circuit and described
The coolant liquid of two circulation loops enters the route of the tested battery (3) and the coolant liquid is flowed out from the tested battery (3)
Route be provided with water pump (103), flow sensor (104), temperature sensor (105) and pressure sensor (106).
5. battery performance testing system according to claim 4, which is characterized in that the first circulation circuit and described
Two circulation loops are additionally provided with PID control valve (107).
6. battery performance testing system according to claim 2, which is characterized in that the direct-cooled subsystem of refrigerant (2) packet
It includes：Compressor (201), condenser (202), liquid storage drying chamber (203), the first expansion valve (204), the second expansion valve (205)；
Wherein, the compressor (201), condenser (202), the liquid storage drying chamber (203), the first expansion valve being sequentially connected
(204) third circulation loop is formed between the heat exchange unit (102)；
The compressor (201), condenser (202), liquid storage drying chamber (203), the second expansion valve (205) and the institute being sequentially connected
State the 4th circulation loop of formation between tested battery (3).
7. battery performance testing system according to claim 6, which is characterized in that the third circulation loop and described
An at most circuit conducting in four circulation loops.
8. battery performance testing system according to claim 5, which is characterized in that further include control unit (4)；
Described control unit 4 respectively with the sensor of the tested battery 3, flow sensor (104), temperature sensor (105),
Pressure sensor (106) is connected with PID control valve (107).
9. a kind of battery performance test method, which is characterized in that
The battery performance test method includes the following steps that switching executes：
Liquid cooling refrigeration step：Freezed using liquid cooling refrigeration subsystem (1) to tested battery (3)；
Liquid cooling heating stepses：The tested battery (3) is heated using liquid cooling refrigeration subsystem (1)；
The direct-cooled step of refrigerant：Freezed using the direct-cooled subsystem of refrigerant (2) to the tested battery (3)；And
The battery performance test method further includes the coolant cooling step being performed simultaneously with the liquid cooling refrigeration step：It utilizes
The direct-cooled subsystem of refrigerant (2) cools down the coolant in the liquid cooling refrigeration subsystem (1).
10. battery performance test method according to claim 9, which is characterized in that
The liquid cooling refrigeration subsystem (1) includes coolant storage unit (101) and heat exchange unit (102), the coolant
Storage element (101) can be heated to its internal coolant is stored in, and the heat exchange unit (102) can be to the cooling
Agent is freezed, and the coolant in the direct-cooled subsystem of the refrigerant (2) and the heat exchange unit (102) carries out hot friendship
It changes；Wherein, first circulation circuit is formed between the coolant storage unit (101) and the tested battery (3)；The cooling
Second circulation circuit is formed between agent storage element (101), the heat exchange unit (102) and the tested battery (3)；With/
Or
The direct-cooled subsystem of refrigerant (2) includes compressor (201), condenser (202), liquid storage drying chamber (203), the first expansion
Valve (204), the second expansion valve (205), wherein the compressor (201), the condenser (202), liquid storage drying chamber being sequentially connected
(203), third circulation loop is formed between the first expansion valve (204) and the heat exchange unit (102)；What is be sequentially connected is described
Between compressor (201), condenser (202), liquid storage drying chamber (203), the second expansion valve (205) and the tested battery (3)
Form the 4th circulation loop；And/or
The battery performance test method is and the first circulation circuit and the second circulation circuit are alternatively connected
Realize the switching between the liquid cooling refrigeration step and the liquid cooling heating stepses, and, the battery performance test method is logical
It crosses and the third circulation loop and the 4th circulation loop is alternatively connected to realize the coolant cooling step and institute
It states and switches between the direct-cooled step of refrigerant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810958448.2A CN108844989A (en) | 2018-08-22 | 2018-08-22 | Battery performance testing system and battery performance test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810958448.2A CN108844989A (en) | 2018-08-22 | 2018-08-22 | Battery performance testing system and battery performance test method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108844989A true CN108844989A (en) | 2018-11-20 |
Family
ID=64188471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810958448.2A Pending CN108844989A (en) | 2018-08-22 | 2018-08-22 | Battery performance testing system and battery performance test method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108844989A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540544A (en) * | 2018-11-30 | 2019-03-29 | 北京新能源汽车股份有限公司 | A kind of test macro and test method for examining battery thermal management system cooling capacity |
| CN109654805A (en) * | 2019-01-23 | 2019-04-19 | 北斗航天汽车（北京）有限公司 | With the power battery testing system of liquid medium simulation wide temperature environment |
| CN115933601A (en) * | 2022-12-19 | 2023-04-07 | 中国第一汽车股份有限公司 | Testing device and testing method of thermal management system, power battery system and vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014095484A (en) * | 2012-11-07 | 2014-05-22 | Denso Corp | Cooling apparatus |
| CN105895999A (en) * | 2015-10-09 | 2016-08-24 | 北京长城华冠汽车科技股份有限公司 | Heat transfer system of battery module, battery management system and electric vehicle |
| CN106025432A (en) * | 2016-07-12 | 2016-10-12 | 北京长城华冠汽车科技股份有限公司 | Heat management pipe of electric-vehicle power battery and balance method and calibration system thereof |
| CN107968238A (en) * | 2017-12-28 | 2018-04-27 | 浙江众泰汽车制造有限公司 | A kind of non-vehicle-mounted type battery thermal management system and the automobile using the system |
| CN108187773A (en) * | 2017-12-27 | 2018-06-22 | 天津亭华科技有限公司 | A kind of high-low-temperature cold test system |
-
2018
- 2018-08-22 CN CN201810958448.2A patent/CN108844989A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014095484A (en) * | 2012-11-07 | 2014-05-22 | Denso Corp | Cooling apparatus |
| CN105895999A (en) * | 2015-10-09 | 2016-08-24 | 北京长城华冠汽车科技股份有限公司 | Heat transfer system of battery module, battery management system and electric vehicle |
| CN106025432A (en) * | 2016-07-12 | 2016-10-12 | 北京长城华冠汽车科技股份有限公司 | Heat management pipe of electric-vehicle power battery and balance method and calibration system thereof |
| CN108187773A (en) * | 2017-12-27 | 2018-06-22 | 天津亭华科技有限公司 | A kind of high-low-temperature cold test system |
| CN107968238A (en) * | 2017-12-28 | 2018-04-27 | 浙江众泰汽车制造有限公司 | A kind of non-vehicle-mounted type battery thermal management system and the automobile using the system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540544A (en) * | 2018-11-30 | 2019-03-29 | 北京新能源汽车股份有限公司 | A kind of test macro and test method for examining battery thermal management system cooling capacity |
| CN109654805A (en) * | 2019-01-23 | 2019-04-19 | 北斗航天汽车（北京）有限公司 | With the power battery testing system of liquid medium simulation wide temperature environment |
| CN115933601A (en) * | 2022-12-19 | 2023-04-07 | 中国第一汽车股份有限公司 | Testing device and testing method of thermal management system, power battery system and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106837505B (en) | Internal combustion engine for vehicle cooling device | |
| CN108944332B (en) | Secondary loop air conditioner heat pump system | |
| CN108844989A (en) | Battery performance testing system and battery performance test method | |
| Ratts et al. | An experimental analysis of cycling in an automotive air conditioning system | |
| CN105576321A (en) | battery pack thermal management system | |
| CN208576388U (en) | The temperature controlled electrombile thermal management system of integrated battery | |
| CN107144037B (en) | Energy saver, environmental test chamber and its control method of environmental test chamber | |
| CN110103775A (en) | A kind of electric automobile power battery temperature control equipment and method | |
| CN107791783A (en) | A kind of new energy electric motor vehicle heat management system and thermal management algorithm | |
| Cecchinato et al. | Design and experimental analysis of a carbon dioxide transcritical chiller for commercial refrigeration | |
| US20230294557A1 (en) | Automobile battery thermal management system, automobile thermal management system, and electric automobile | |
| CN116710299A (en) | Thermal management system, heating method, heating device, vehicle and storage medium | |
| Wang et al. | Pseudo-optimal discharge pressure analysis of transcritical CO2 electric vehicle heat pumps due to temperature glide | |
| CN108674219A (en) | New energy car battery heat management system | |
| Lian et al. | Experimental investigation on a heating-and-cooling difunctional battery thermal management system based on refrigerant | |
| CN211436251U (en) | Energy-saving temperature control system of high-low temperature alternating damp-heat test chamber | |
| CN106468887A (en) | New-energy automobile heat management system phantom and emulation mode | |
| CN104566874A (en) | Heat recycling device used for enthalpy difference chamber of air conditioner | |
| CN212109084U (en) | Air conditioning system with natural cooling function | |
| CN210090650U (en) | A test machine for testing battery package | |
| CN206831851U (en) | Energy saver, the environmental test chamber of environmental test chamber | |
| CN113218447A (en) | Oil level self-balancing test equipment for oil-cooled motor test | |
| CN208343976U (en) | A kind of new energy car battery heat management system | |
| CN219572322U (en) | High-precision small-sized refrigerating device | |
| CN220959191U (en) | Heat exchange system of direct-cooling and direct-heating battery pack temperature control test equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181120 |
|
| WD01 | Invention patent application deemed withdrawn after publication |