CN209001077U - A kind of non-equidistant drum runner air cooling system for power battery pack heat dissipation - Google Patents
A kind of non-equidistant drum runner air cooling system for power battery pack heat dissipation Download PDFInfo
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- CN209001077U CN209001077U CN201821771085.3U CN201821771085U CN209001077U CN 209001077 U CN209001077 U CN 209001077U CN 201821771085 U CN201821771085 U CN 201821771085U CN 209001077 U CN209001077 U CN 209001077U
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- Prior art keywords
- flow channel
- deflector
- battery pack
- inducer
- power 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 non-equidistant drum runner air cooling systems for power battery pack heat dissipation, including two inducers, import deflector, power battery pack, several coolant flow channels, outlet deflector and two outlet sections, air is entered under import deflector reaches after air flow channel by two inducers, it is oppressed by import deflector and enters the coolant flow channel vertical with lower air flow channel, after coolant flow channel reaches upper air flow channel, and passes through after being converged under the compressing of outlet deflector and flowed out by two outlet sections.The width of the coolant flow channel is distributed from central axis toward two sides in equal difference decreasing sequence of numbers about system centre axial symmetry, width of flow path size.The utility model significantly reduces the hot(test)-spot temperature and the temperature difference of battery pack, while reducing system power dissipation, achieves higher cooling efficiency, is conducive to the performance and used life for guaranteeing power battery pack in the case where low cost.
Description
Technical field
The utility model relates to power battery pack field of radiating, and in particular to a kind of for the non-etc. of power battery pack heat dissipation
Away from drum runner air cooling system.
Background technique
In recent years, as environmental problem and energy crisis are got worse, electric car makees to alleviate the above problems effective
Means and paid attention to.Power battery is the power source of electric car, and needing could table in suitable temperature and the temperature difference range
Reveal good performance.However, power battery generates a large amount of heat in electric car operational process, electric car is endangered
Safety.Therefore, it is necessary to use power battery thermal management system, rapidly drain the heat of power battery pack generation, guarantees battery
It works in lower temperature and the lesser temperature difference.Currently, common battery thermal management mode includes air cooling, liquid
Cooling, phase-change material cooling, heat pipe cooling and combination cooling etc..Wherein, it is biggish can to guarantee that battery pack has for air cooling
Energy density, and it is at low cost, thus be widely used.However, air specific heat capacity is smaller, the difference of cooling condition between battery
It is easy to generate the larger temperature difference in internal battery pack, it is therefore desirable to it is well-designed to the progress of battery thermal management air cooling system, to mention
High system radiating efficiency reduces the hot(test)-spot temperature and the temperature difference of battery pack.
Utility model content
The purpose of this utility model is in view of the deficiencies of the prior art, in order to overcome existing battery thermal management air cooling system to make
At the problem that the battery temperature difference is larger, a kind of non-equidistant drum runner air cooling system for power battery pack heat dissipation is provided
System reduces power battery hot(test)-spot temperature in the case where not increasing battery pack volume, reduces the temperature difference between battery, while reducing and being
System power consumption, reaches good power battery cooling effect.
The purpose of this utility model can be achieved through the following technical solutions:
It is a kind of for power battery pack heat dissipation non-equidistant drum runner air cooling system, the system comprises first into
Mouthful section, the second inducer, import deflector, power battery pack, several coolant flow channels, outlet deflector, first outlet section and the
Two outlet sections, import deflector and outlet deflector are distributed parallelly on the two sides up and down that a fixed spacing is kept with power battery pack,
The spacing is respectively formed air flow channel up and down, and the spacing between neighboring unit cell each in power battery pack forms parallel
The perpendicular relationship of coolant flow channel, the first inducer, the second inducer are parallel with import deflector to be connected, and is respectively distributed to import and is led
The two sides of flowing plate, deflector is parallel connects for first outlet section, second outlet section and outlet, is respectively distributed to the two of outlet deflector
Side, the first inducer, the second inducer and first outlet section, second outlet section are in parallel relation, and air is by the first inducer, the
Two inducers enter under import deflector reaches after air flow channel, are entered by the compressing of import deflector vertical with lower air flow channel
Coolant flow channel passes through after coolant flow channel reaches upper air flow channel, and after converging under the compressing of outlet deflector by first outlet
Section, the outflow of second outlet section.
Further, entire cooling system is in " I " fonts, about substantially symmetrical about its central axis, the first inducer, the second inducer
Parallel with import deflector to connect positioned at the lower end two sides of power battery pack, first outlet section, second outlet section are located at power electric
The upper end two sides of pond group, deflector is parallel connects with outlet.
Further, the coolant flow channel is parallel to each other, and width is not completely equivalent, it is assumed that the number of coolant flow channel be it is N number of,
It is from left to right respectively No. 1, No. 2 ... No. N；The width distribution of coolant flow channel is substantially symmetrical about its central axis about cooling system, by central axis
Set out toward two sides, coolant flow channel width gradually successively decreases in arithmetic progression rule, for width of flow path successively decrease tolerance be d, runner it is wide
Spend the cooling system that summation is D: when N is even number, the width of i-th and the N-i+1 coolant flow channel is D/N-d (N/4+i-
3/2)；When N is odd number, the width of i-th and the N-i+1 coolant flow channel is D/N-d (N/4+i-3/2+1/ (4N)).
Further, first inducer, the second inducer, first outlet section, the width of second outlet section and import
Deflector exports the of same size of deflector.
Further, first inducer, the second inducer are identical with the length of first outlet section, second outlet section.
The utility model compared with prior art, is had the following advantages and beneficial effects:
1, compared with equal in width runner cooling system, the coolant flow channel width distribution of equal difference rule improves the utility model
Cooling air delivery distribution between runner, reduces the difference of radiating condition between power battery, to reduce power electric
The temperature difference between the hot(test)-spot temperature and battery of pond group.
2, the utility model shortens the stroke of part cooling air in systems by the design method of two outlet sections,
The resistance that air is subject to is reduced, to reduce the power consumption of entire cooling system；Meanwhile with equal in width runner cooling system phase
Than the width of flow path design of equal difference rule only changes the distribution of width of flow path, does not increase the size of entire battery pack.
Detailed description of the invention
Fig. 1 is a kind of the vertical of non-equidistant drum runner air cooling system for power battery pack heat dissipation of the utility model
Body structural schematic diagram.
Fig. 2 be the utility model it is a kind of for power battery pack heat dissipation non-equidistant drum runner air cooling system just
View.
Fig. 3 is non-equidistant drum runner air cooling system of the utility model embodiment for power battery pack heat dissipation
Front view.
Wherein, the first inducer of 1-, the second inducer of 2-, 3- import deflector, 4- power battery pack, 5- coolant flow channel,
6- exports deflector, 7- first outlet section, 8- second outlet section.
Specific embodiment
The present invention will be further described in detail with reference to the embodiments and the accompanying drawings, but the implementation of the utility model
Mode is without being limited thereto.
Embodiment:
A kind of non-equidistant drum runner air cooling system for power battery pack heat dissipation is present embodiments provided, it is described
The schematic perspective view of system as shown in Figure 1, front view as shown in Fig. 2, including the first inducer (1), the second inducer
(2), import deflector (3), power battery pack (4), several coolant flow channels (5), outlet deflector (6), first outlet section (7) and
Second outlet section (8), import deflector (3) and outlet deflector (6) are distributed parallelly between power battery pack (4) holding centainly
Away from two sides up and down, the spacing be respectively formed up and down air flow channel, between each neighboring unit cell in power battery pack (4)
Parallel coolant flow channel (5) perpendicular relationship for being formed of spacing, the first inducer (1), the second inducer (2) and import deflector
(3) parallel connection, is respectively distributed to the two sides of import deflector (3), first outlet section (7), second outlet section (8) and outlet guide
Flowing plate (6) connects in parallel, is respectively distributed to the two sides of outlet deflector (6), the first inducer (1), the second inducer (2) and the
One outlet section (7), second outlet section (8) are in parallel relation, and air enters import by the first inducer (1), the second inducer (2)
After deflector (3) reaches lower air flow channel, is oppressed by import deflector (3) and enter the coolant flow channel vertical with lower air flow channel
(5), it after air flow channel in coolant flow channel (5) arrival, and passes through after being converged under the compressing of outlet deflector (6) by first outlet
Section (7), second outlet section (8) outflow.
Entire cooling system is in " I " fonts, and about substantially symmetrical about its central axis, the first inducer (1), the second inducer (2) are located at
The lower end two sides of power battery pack (4), connection parallel with import deflector (3), first outlet section (7), second outlet section (8) position
In the upper end two sides of power battery pack (4), connection parallel with outlet deflector (6).First inducer (1), the second import
The width phase of the width and import deflector (3), outlet deflector (6) of section (2), first outlet section (7), second outlet section (8)
Together.The length of first inducer (1), the second inducer (2) and first outlet section (7), second outlet section (8) is also equal.
Wherein, the coolant flow channel (5) is parallel to each other, and width is not completely equivalent, it is assumed that the number of coolant flow channel (5) is N
It is a, from left to right respectively No. 1, No. 2 ... No. N；The width distribution of coolant flow channel is substantially symmetrical about its central axis about cooling system, by center
Axis sets out toward two sides, and coolant flow channel width gradually successively decreases in arithmetic progression rule, successively decreases tolerance for width of flow path as d, runner
Width summation is the cooling system of D: when N is even number, the width of i-th and the N-i+1 coolant flow channel is D/N-d (N/4+
i-3/2)；When N is odd number, the width of i-th and the N-i+1 coolant flow channel is D/N-d (N/4+i-3/2+1/ (4N)).
Consider the non-equidistant drum runner air cooling system for power battery pack heat dissipation as shown in Figure 3, system two
The depth of section of a inducer and two outlet sections is 20mm, and power battery is having a size of 16mm × 65mm × 151mm, battery
Number is 12, forms 13 coolant flow channel width；Coolant flow channel width tolerance is 0.1mm, and width of flow path summation is 39mm, then the
1 coolant flow channel to the 13rd coolant flow channel width be respectively 2.72mm, 2.82mm, 2.92mm, 3.02mm, 3.12mm,
3.22mm,3.32mm,3.22mm,3.12mm,3.02mm,2.92mm,2.82mm,2.72mm；The thermal conductivity of battery is orthogonal each
Anisotropy, wherein the direction x thermal conductivity is 1.05W/ (mK), and the direction y and the direction z thermal conductivity are 21.1W/ (mK)；Battery is close
Degree is 1542.9kg/m3, thermal capacitance is 1337J/ (kgK)；Inducer cooling air temperature is 298.15K.Two inducer streams
It measures equal, is 0.0075m3/s。
The conventional Z-type runner cooling system and this reality of uniform flow path width (3mm) are calculated separately using method for numerical simulation
With novel temperature field.Calculated result shows the battery pack hot spot temperature of Z-type uniform flow path width cooling system and the utility model
Degree is respectively 336.3K and 331.2K, and the battery hot(test)-spot temperature of the utility model has dropped 5.1K；The corresponding battery of two systems
The group temperature difference is respectively 9.6K and 1.2K, and the battery temperature difference of the utility model reduces 88%.Sky is overcome in Z-type uniform flow path system
Power consumption needed for atmidometer is 0.68W, and the corresponding power consumption of the utility model is 0.39W, is had dropped compared to Z-type system
42%.It can be seen that the utility model is significantly improving the same of system radiating efficiency compared to conventional Z-type uniform flow path system
When, reduce system power dissipation.
The above, only the utility model patent preferred embodiment, but the protection scope of the utility model patent is simultaneously
Not limited to this, anyone skilled in the art is in the range disclosed in the utility model patent, according to this
The technical solution of utility model patent and its inventive concept are subject to equivalent substitution or change, belong to the guarantor of the utility model patent
Protect range.
Claims (5)
1. a kind of non-equidistant drum runner air cooling system for power battery pack heat dissipation, it is characterised in that: the system
Including the first inducer, the second inducer, import deflector, power battery pack, several coolant flow channels, outlet deflector, first
Outlet section and second outlet section, import deflector and outlet deflector are distributed parallelly on and keep a fixed spacing with power battery pack
Upper and lower two sides, the spacing is respectively formed air flow channel up and down, with the spacing between neighboring unit cell each in power battery pack
The perpendicular relationship of parallel coolant flow channel formed, the first inducer, the second inducer are parallel with import deflector to be connected, and is divided respectively
Cloth is in the two sides of import deflector, and first outlet section, deflector is parallel second outlet section and outlet connects, and is respectively distributed to export
The two sides of deflector, the first inducer, the second inducer and first outlet section, second outlet section are in parallel relation, and air is by the
One inducer, the second inducer enter after import deflector reaches lower air flow channel, are oppressed and are entered and lower sky by import deflector
The vertical coolant flow channel of flow channel, after coolant flow channel reaches upper air flow channel, and under the compressing of outlet deflector after convergence
It is flowed out via first outlet section, second outlet section.
2. a kind of non-equidistant drum runner air cooling system for power battery pack heat dissipation according to claim 1,
It is characterized by: entire cooling system is in " I " fonts, about substantially symmetrical about its central axis, the first inducer, the second inducer are located at dynamic
The lower end two sides of power battery pack, parallel with import deflector to connect, first outlet section, second outlet section are located at power battery pack
Upper end two sides, deflector is parallel connects with outlet.
3. a kind of non-equidistant drum runner air cooling system for power battery pack heat dissipation according to claim 2,
It is characterized by: the coolant flow channel is parallel to each other, width is not completely equivalent, it is assumed that the number of coolant flow channel be it is N number of, from a left side to
The right side is respectively No. 1, No. 2 ... No. N；The width distribution of coolant flow channel is substantially symmetrical about its central axis about cooling system, from central axis set out toward
Two sides, coolant flow channel width gradually successively decrease in arithmetic progression rule, successively decrease tolerance for width of flow path as d, width of flow path summation
For the cooling system of D: when N is even number, the width of i-th and the N-i+1 coolant flow channel is D/N-d (N/4+i-3/2)；When
When N is odd number, the width of i-th and the N-i+1 coolant flow channel is D/N-d (N/4+i-3/2+1/ (4N)).
4. a kind of non-equidistant drum runner air cooling system for power battery pack heat dissipation according to claim 1,
It is characterized by: first inducer, the second inducer, first outlet section, the width of second outlet section and import deflector,
Export the of same size of deflector.
5. a kind of non-equidistant drum runner air for power battery pack heat dissipation according to claim 1 to 4 is cooling
System, it is characterised in that: first inducer, the second inducer are identical with the length of first outlet section, second outlet section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821771085.3U CN209001077U (en) | 2018-10-30 | 2018-10-30 | A kind of non-equidistant drum runner air cooling system for power battery pack heat dissipation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821771085.3U CN209001077U (en) | 2018-10-30 | 2018-10-30 | A kind of non-equidistant drum runner air cooling system for power battery pack heat dissipation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209001077U true CN209001077U (en) | 2019-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821771085.3U Expired - Fee Related CN209001077U (en) | 2018-10-30 | 2018-10-30 | A kind of non-equidistant drum runner air cooling system for power battery pack heat dissipation |
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| Country | Link |
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| CN (1) | CN209001077U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113747761A (en) * | 2021-09-02 | 2021-12-03 | 华南理工大学 | Non-equidistant parallel channel double-outlet liquid cooling plate |
-
2018
- 2018-10-30 CN CN201821771085.3U patent/CN209001077U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113747761A (en) * | 2021-09-02 | 2021-12-03 | 华南理工大学 | Non-equidistant parallel channel double-outlet liquid cooling plate |
| CN113747761B (en) * | 2021-09-02 | 2022-10-25 | 华南理工大学 | Non-equidistant parallel channel double-outlet liquid cooling plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190618 Termination date: 20201030 |