CN207690954U - A kind of dynamic lithium battery coldplate and cooling device - Google Patents
A kind of dynamic lithium battery coldplate and cooling device Download PDFInfo
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- CN207690954U CN207690954U CN201721308446.6U CN201721308446U CN207690954U CN 207690954 U CN207690954 U CN 207690954U CN 201721308446 U CN201721308446 U CN 201721308446U CN 207690954 U CN207690954 U CN 207690954U
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- refrigerant
- runner
- coldplate
- lithium battery
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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 utility model discloses a kind of dynamic lithium battery coldplates, including profiled sheeting and tablet, multiple runners are equipped in the profiled sheeting, it is characterized in that each runner includes the refrigerant inlet section, multiple flows and refrigerant outlet section being sequentially connected in series, heat exchange area is formed at flow, the heat exchange area of each runner is arranged in parallel.The utility model cools down lithium battery as refrigerant using the refrigerant of automobile refrigeration system.Refrigerant enters coldplate from the inducer of runner, and heat exchange is carried out with battery at runner, is flowed out from outlet section after absorbing heat.Due to using multiple flow passages so that the refrigerant flow on coldplate is reasonably distributed, and is played the role of to battery uniform decrease in temperature.Each runner is equipped with multiple flows, and cold and hot flow interlaced arrangement keeps heat exchange more abundant, to improve heat exchanger effectiveness.
Description
Technical field
The utility model is related to dynamic lithium battery field more particularly to the power lithium batteries of electric vehicle and hybrid vehicle
Pond field, specifically a kind of dynamic lithium battery coldplate and cooling device.
Background technology
Using battery as power source no pollution may be implemented, and can in pure electric automobile and hybrid vehicle in use
Using other non-oil resources such as coal, waterpower, hicle emissions and energy problem can be effectively solved, thus are worldwide obtained
To most attention.The performance and quality of these vehicles largely rely on the performance for the power battery pack that it is configured.Temperature
Degree is to influence the vital factor of power battery performance.When vehicle is run under different driving conditions, battery can be with difference
Multiplying power discharging generates amount of heat, in addition accumulated time and spacial influence will produce uneven heat with different heat rates
Aggregation, it is complicated and changeable so as to cause battery pack running temperature.And excessively high temperature can lead to capacity, service life and the energy dose-effect of battery
The reduction of rate can lead to the generation of thermal runaway if the heat of battery accumulation can not shed in time, and battery has generation violent when serious
The danger of expansion and explosion makes its operating temperature be in preferably section so battery cooling must be carried out to dynamic lithium battery.
If new energy car owner is with air is cold and liquid cooling is but based on battery at this stage, since air cooling effect is poor, the temperature difference
Greatly, liquid cooling scheme, parts are more, weight weight, and there are risk of leakage, so refrigerant cooling will be a kind of good heat
Way to manage.
Refrigerant evaporation latent heat is big, and the coefficient of heat transfer is high, is the efficient battery type of cooling, and at normal temperatures and pressures, refrigeration
Agent is gaseous state, and instant battery cooling system has slight leakage, will not have battery short circuit, damage cell condition.
It is the schematic diagram of current existing scheme battery cooling shown in Fig. 1.Automotive air-conditioning system is by compressor, condenser, swollen
Swollen valve and evaporator composition, form refrigerant circuit.Since new-energy automobile needs to carry out heat management to battery, generally in air-conditioning
On circuit, a battery cooler in parallel with evaporator.And water pump, battery cooler and the coldplate in another circuit constitute
Coolant circuit.The heat transfer that battery generates when working is to coldplate, then is transmitted to coolant liquid, and the medium in two circuits is in electricity
Heat exchange is carried out in the cooler of pond to cool down to battery.
It can be seen from figure 1 that existing automotive thermal tube reason system uses two cooling circuits.One is refrigerant circuit, mainly
For adjusting air and coolant temperature.The second is coolant circuit, is mainly used for cooling battery or battery pack.Due to two times
Road uses different cooling media, needs to carry out heat transfer by a battery cooler, while also needing to a water pump and driving
Dynamic coolant liquid generates cycle.Specifically, battery cooler has cold side channel and hot-side channel, the cold side channel and steaming
It is in parallel to send out device；The hot-side channel is connected with coldplate.The heat that battery generates passes to coolant liquid through coldplate.In battery
In cooler, the refrigerant in the coolant liquid and cold side channel in hot-side channel carries out heat exchange, is dropped after coolant liquid release heat
Temperature.Water pump driving coolant liquid circulates in the loop, plays the cooling effect to battery.Thus existing battery cooling apparatus
Component is more, and weight is big, complicated, of high cost.Also, it is made of 50% ethylene glycol and 50% water due to coolant liquid generally use
Mixture, its advantage is that specific heat capacity is big, temperature uniformity is good, and develops matching simply, however is also easy leakage.Once letting out
It leaks, then the ethylene glycol in coolant liquid is possible to cause burning, to damage battery, or even causes the safety accident of bigger.
Invention content
To be solved in the utility model is problem of the existing technology, it is desirable to provide a kind of dynamic lithium battery of compact
Special coldplate.
Another purpose of the utility model is to provide for a kind of cooling device of the dynamic lithium battery of compact.
To solve the above problems, the utility model uses following technical scheme：A kind of dynamic lithium battery coldplate, including at
Template and tablet, the profiled sheeting is interior to be equipped with multiple runners, it is characterised in that each runner includes the refrigerant being sequentially connected in series
Inducer, multiple flows and refrigerant outlet section, form heat exchange area at flow, and the heat exchange area of each runner is arranged in parallel.
The utility model cools down lithium battery as refrigerant using the refrigerant of automobile refrigeration system.Refrigerant is from stream
The inducer in road enters coldplate, and heat exchange is carried out with battery at runner, is flowed out from outlet section after absorbing heat.Due to using
Multiple flow passages so that the refrigerant flow on coldplate is reasonably distributed, and is played the role of to battery uniform decrease in temperature.Each runner is equipped with
Multiple flows, cold and hot flow interlaced arrangement, keep heat exchange more abundant, to improve heat exchanger effectiveness.
As the improvement of the utility model, the runner number is even number, and the heat exchange area of multiple runners is divided into two groups of rows
Row.One battery modules can be set on every group of heat exchange area, battery group is cooled down, can avoid being centrally placed and leading to temperature
It spends uneven.Runner number is even number so that the area of first heat exchange area is essentially identical.Preferably, the runner number is 4
It is a.
Multiple flows in each runner are connected in series with as a further improvement of the utility model, and are in reciprocating cloth
It sets.
As the further improvement of the utility model, first pass and last flow in each runner are disposed adjacent.
In general, in first pass, since refrigerant has just started to carry out heat exchange with battery, thus temperature is minimum；And in last flow
In, since refrigerant carries out sufficient heat exchange, thus temperature highest with battery.Maximum two flows of the temperature difference is adjacent
The temperature gradient of heat exchange area can be reduced by being arranged, it is ensured that the plate face temperature difference minimizes.
As the further improvement of the utility model, the refrigerant outlet section of each runner is flowed to a refrigerant and goes out
Mouthful.
As the further improvement of the utility model, the main part of the coldplate is square structure, each runner
Refrigerant inlet section and outlet section are arranged in parallel in side, and vertical with the flow.
As the further improvement of the utility model, the refrigerant of one group and the runner is offered on the tablet
The one-to-one refrigerant inlet of inducer, and the refrigerant outlet that is connected to the refrigerant outlet of runner；The tablet
On be additionally provided with inlet and outlet pressing plate, offering refrigerant inlet, refrigerant outlet and refrigerant on the inlet and outlet pressing plate collects
The refrigerant outlet of chamber, the inlet and outlet pressing plate is connected to the refrigerant outlet on tablet, the refrigerant of the inlet and outlet pressing plate
Collection chamber both ends are connected to the refrigerant inlet in the refrigerant inlet and tablet of inlet and outlet pressing plate respectively.
As the further improvement of the utility model, runner on the profiled sheeting is by being stamped and formed out, or passes through roller
Pressure combines inflation to be molded.
The utility model also provides a kind of cooling device of dynamic lithium battery, includes by coldplate and cooling front edge of board
The second branch that second expansion valve is constituted, it is characterised in that the evaporator of the second branch and automobile refrigeration system and evaporation
The first branch that first expansion valve of device front end is constituted is in parallel, and the coldplate is bonded with battery；The coldplate, including
Profiled sheeting and tablet, are equipped with multiple runners in the profiled sheeting, and each runner includes the refrigerant inlet section being sequentially connected in series, more
A flow and refrigerant outlet section, form heat exchange area at flow, and the heat exchange area of each runner is arranged in parallel.
A kind of cooling device of dynamic lithium battery of the utility model, the liquid refrigerant come out from condenser are divided into two
Road：Enter evaporator after the first expansion valve reducing pressure by regulating flow all the way, heat absorption of gasifying in evaporator carries out heat with extraneous air
It exchanges, achievees the effect that refrigeration；Another way is passed directly into coldplate, battery and coldplate after the second expansion valve reducing pressure by regulating flow
It is in close contact after fitting, the heat transfer that battery generates when working to coldplate, refrigerant evaporation endothermic in coldplate is taken away
The heat that battery generates when working, to cool down to battery.
The utility model has the advantages that：
1, two big component of battery cooler and water pump is eliminated so that the utility model is compact-sized, light-weight, volume
Small, low cost is economical and practical.
2, the utility model component is few, and structure is relatively easy, and pipe joint is few, it is not easy to generate leakage.And due to adopting
Use refrigerant as refrigerant, common refrigerant, such as R410a, R134a, R407C and R22, even if the leakage of hair property, system
Cryogen directly evaporate into air, and the accidents such as burning will not occur, thus safer reliable.
The utility model also provides a kind of special coldplate of the cooling device of compact dynamic lithium battery, and described is cold
But there is plate inlet tube, outlet and runner, the runner to have at least two flows, have several systems in each flow
Coolant channel is connected by header between adjacent run.The inlet tube of coldplate is connect with the outlet end of the second expansion valve, cold
But the input end of the outlet of plate and compressor connects.Refrigerant flows in runner, and evaporates and inhale after absorbing cell heat
Heat takes away the heat generated when battery work, to realize the cooling to battery.The runner is divided into two and arrives multiple streams
Journey, in each flow, refrigerant flows in several coolant channels respectively, then enters next stream by header
Journey.Header reallocates to the flow of refrigerant so that the refrigerant flow on coldplate is reasonably distributed, and is played to battery
The effect of uniform decrease in temperature.
Description of the drawings
Fig. 1 is the schematic diagram of this existing battery cooling apparatus.
Fig. 2 is the schematic diagram of the utility model battery cooling apparatus.
Fig. 3 is the usage state diagram of the utility model coldplate.
Fig. 4 is the structural schematic diagram of the utility model profiled sheeting.
Fig. 5 is the structural schematic diagram of the utility model tablet.
Fig. 6 is the runner figure of the utility model profiled sheeting.
Fig. 7 is the sectional view along A-A of Fig. 5.
Fig. 8 is the B-B direction sectional view of Fig. 5.
Specific implementation mode
Referring to Fig.1, the battery cooling apparatus of the prior art has refrigerant circuit and coolant circuit, before defect
It has been noted above, details are not described herein.
Reference Fig. 2, a kind of cooling device of dynamic lithium battery of the utility model, including by coldplate and cooling front edge of board
The second expansion valve constitute the second branch, the evaporator and evaporator front end of the second branch and automobile refrigeration system
The first branch that first expansion valve is constituted is in parallel, and the coldplate is bonded with battery.
A kind of cooling device of dynamic lithium battery of the utility model, the liquid refrigerant come out from condenser are divided into two
Road：Enter evaporator after the first expansion valve reducing pressure by regulating flow all the way, heat absorption of gasifying in evaporator carries out heat with extraneous air
It exchanges, achievees the effect that refrigeration；Another way is passed directly into coldplate, battery and coldplate after the second expansion valve reducing pressure by regulating flow
It is in close contact after fitting, the heat transfer that battery generates when working to coldplate, refrigerant evaporation endothermic in coldplate is taken away
The heat that battery generates when working, to cool down to battery.
With reference to Fig. 3, placing battery module 2 and 3 on the coldplate 1 of the utility model can cool down battery.It is cooling
It can also be separated into two with one heat exchange area of whole installation and arrive multiple heat exchange areas on plate 1.Each heat exchange area
Area may be the same or different.A battery modules can be placed in each heat exchange area, two can also be placed and arrived
Multiple battery modules.In the present embodiment, there are two big heat exchange area, two groups of battery moulds for the tool of coldplate 1 of the utility model
Group 2,3 is separately positioned on this two big heat exchange area.
With reference to Fig. 4 and Fig. 5, the coldplate of the utility model includes profiled sheeting 11 and tablet 12, and the two passes through welding fabrication.
The main part of coldplate is square.
With reference to Fig. 6, multiple runners are equipped in the profiled sheeting 11, each runner includes the refrigerant inlet being sequentially connected in series
Section, multiple flows and refrigerant outlet section, form heat exchange area at flow, and the heat exchange area of each runner is arranged in parallel.
In the present embodiment, runner 111,112,113 and 114 there are four being set in profiled sheeting 11.First flow 111 has
Refrigerant inlet section 11e, first pass 11a, second procedure 11d, third flow 11c and the refrigerant outlet section being sequentially connected in series
11f.First pass 11a, the 4th flow 11b, third flow 11c and second procedure 11d are arranged in parallel successively.In first pass
In 11a, since refrigerant has just started to carry out heat exchange with battery, thus temperature is minimum；In the 4th flow 11b, due to refrigeration
Agent carries out sufficient heat exchange, thus temperature highest with battery.Maximum two flows of the temperature difference are disposed adjacent and can be reduced
The temperature gradient of heat exchange area, it is ensured that the plate face temperature difference minimizes.Aforementioned four flow constitutes the first heat exchange area A.Refrigeration
Agent inducer 11e and refrigerant outlet section 11f is arranged in parallel in the side of profiled sheeting 11, and perpendicular with flow.
Second flow channel 112, the structure of third flow channel 113 and the 4th runner 114 and first flow 111 are essentially identical, system
Cryogen inducer and refrigerant outlet section are arranged in parallel successively.Four flows of second flow channel 112 constitute the second heat exchange area
Four flows of B, third flow channel 113 constitute third heat exchange area C, and four flows of the 4th runner 114 constitute the 4th heat and hand over
Change region D.First heat exchange area A and the second heat exchange area B is disposed side by side on the same side and constitutes a big heat exchange area；The
Three heat exchange area C and the 4th heat exchange area D are disposed side by side on the other side, constitute another big heat exchange area；Two big heat exchanges
Compartment E between region does not set runner, can utilize refrigerant in effect, at the same can be used for again between two groups of heat sources every
Heat.
The refrigerant outlet section of each runner is flowed to a refrigerant outlet 115.
With reference to Fig. 7 and Fig. 8, the refrigerant inlet section that one group and the runner are offered on the tablet 12 corresponds
Refrigerant inlet 121,122,123 and 124, and the refrigerant outlet 125 that is connected to the refrigerant outlet 115 of runner；Institute
It is additionally provided with inlet and outlet pressing plate 13 on the tablet stated, offers refrigerant inlet 131 on the inlet and outlet pressing plate 13, refrigerant goes out
The refrigerant outlet 132 of mouth 132 and refrigerant collection chamber 133, the inlet and outlet pressing plate connects with the refrigerant outlet 125 on tablet
It is logical, 133 both ends of refrigerant collection chamber of the inlet and outlet pressing plate respectively in the refrigerant inlet 131 and tablet of inlet and outlet pressing plate
Refrigerant inlet 121,122,123 be connected to 124.
Runner on the profiled sheeting is molded by being stamped and formed out, or by roll bonding inflation.Battery modules 2,3 are placed
On tablet 12, ensures that the two fits closely, improve heat exchanger effectiveness.
It is to be understood that：Above-described embodiment is the explanation to the utility model, rather than to the utility model
Limitation, any utility model without departing from the utility model in essence scope are created, and the protection of the utility model is each fallen within
Within the scope of.
Claims (10)
1. a kind of dynamic lithium battery coldplate, including profiled sheeting and tablet, the profiled sheeting is interior to be equipped with multiple runners, feature
It is that each runner includes the refrigerant inlet section, multiple flows and refrigerant outlet section being sequentially connected in series, is formed and changed at flow
The heat exchange area of thermal region, each runner is arranged in parallel.
2. a kind of dynamic lithium battery coldplate as described in claim 1, it is characterised in that the runner number is even number, multiple
The heat exchange area of runner is divided into two groups of arrangements.
3. a kind of dynamic lithium battery coldplate as claimed in claim 2, it is characterised in that the runner number is 4.
4. a kind of dynamic lithium battery coldplate as described in claim 1, it is characterised in that multiple flow strings in each runner
Connection connection, and be in reciprocating arrangement.
5. a kind of dynamic lithium battery coldplate as claimed in claim 4, it is characterised in that first pass in each runner and
Last flow is disposed adjacent.
6. a kind of dynamic lithium battery coldplate as described in claim 1, it is characterised in that the refrigerant outlet Duan Hui of each runner
Flow to a refrigerant outlet.
7. a kind of dynamic lithium battery coldplate as claimed in claim 6, it is characterised in that the main part of the coldplate is in
Square structure, the refrigerant inlet section and outlet section of each runner are arranged in parallel in side, and vertical with the flow.
8. a kind of dynamic lithium battery coldplate as claimed in claim 7, it is characterised in that offer one group on the tablet
With the one-to-one refrigerant inlet of refrigerant inlet section of the runner, and the refrigeration that is connected to the refrigerant outlet of runner
Agent exports；It is additionally provided with inlet and outlet pressing plate on the tablet, refrigerant inlet, refrigerant are offered on the inlet and outlet pressing plate
Outlet and refrigerant collection chamber, it is described inlet and outlet pressing plate refrigerant outlet be connected to the refrigerant outlet on tablet, it is described into
The refrigerant collection chamber both ends of output clamping connect with the refrigerant inlet in the refrigerant inlet and tablet of inlet and outlet pressing plate respectively
It is logical.
9. a kind of dynamic lithium battery coldplate as described in claim 1, it is characterised in that the runner on the profiled sheeting passes through
It is stamped and formed out, or is molded by roll bonding inflation.
Include the be made of the second expansion valve of coldplate and cooling front edge of board 10. a kind of cooling device of dynamic lithium battery
Two branches, it is characterised in that the evaporator of the second branch and automobile refrigeration system and the first expansion valve of evaporator front end
The first branch of composition is in parallel, and the coldplate is bonded with battery；Also, the coldplate uses claim 1 ~ 9 times
What one structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721308446.6U CN207690954U (en) | 2017-10-11 | 2017-10-11 | A kind of dynamic lithium battery coldplate and cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721308446.6U CN207690954U (en) | 2017-10-11 | 2017-10-11 | A kind of dynamic lithium battery coldplate and cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207690954U true CN207690954U (en) | 2018-08-03 |
Family
ID=62987393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721308446.6U Active CN207690954U (en) | 2017-10-11 | 2017-10-11 | A kind of dynamic lithium battery coldplate and cooling device |
Country Status (1)
| Country | Link |
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| CN (1) | CN207690954U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107768768A (en) * | 2017-10-11 | 2018-03-06 | 浙江银轮机械股份有限公司 | A kind of electrokinetic cell coldplate and cooling device |
| CN113437393A (en) * | 2021-07-30 | 2021-09-24 | 中国科学院工程热物理研究所 | Cold drawing structure, battery cold drawing and battery thermal management system |
-
2017
- 2017-10-11 CN CN201721308446.6U patent/CN207690954U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107768768A (en) * | 2017-10-11 | 2018-03-06 | 浙江银轮机械股份有限公司 | A kind of electrokinetic cell coldplate and cooling device |
| CN113437393A (en) * | 2021-07-30 | 2021-09-24 | 中国科学院工程热物理研究所 | Cold drawing structure, battery cold drawing and battery thermal management system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Cooling plate and cooling device of power lithium battery Effective date of registration: 20221214 Granted publication date: 20180803 Pledgee: Bank of China Limited by Share Ltd. Tiantai County branch Pledgor: ZHEJIANG YINLUN MACHINERY Co.,Ltd. Registration number: Y2022330003675 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230803 Granted publication date: 20180803 Pledgee: Bank of China Limited by Share Ltd. Tiantai County branch Pledgor: ZHEJIANG YINLUN MACHINERY Co.,Ltd. Registration number: Y2022330003675 |