CN208298895U - A kind of cooling battery box structure of air - Google Patents

A kind of cooling battery box structure of air Download PDF

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Publication number
CN208298895U
CN208298895U CN201820832233.1U CN201820832233U CN208298895U CN 208298895 U CN208298895 U CN 208298895U CN 201820832233 U CN201820832233 U CN 201820832233U CN 208298895 U CN208298895 U CN 208298895U
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China
Prior art keywords
battery
air
battery case
cooling
cross
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CN201820832233.1U
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Chinese (zh)
Inventor
王红民
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South China University of Technology SCUT
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South China University of Technology SCUT
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Priority to CN201820832233.1U priority Critical patent/CN208298895U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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Abstract

The utility model discloses a kind of cooling battery box structures of air, including battery case and battery module, the battery case is heterogeneous texture, the direction flowed along air, the cross-sectional area of battery case is gradually reduced, and battery module is laterally or longitudinally arranged along air-flow direction.The utility model is structurally simple, economical practical, efficiently solves the problems, such as each battery module temperature distributing disproportionation in air cooled Battery case, can satisfy the temperature control requirement of various batteries.

Description

A kind of cooling battery box structure of air
Technical field
The utility model relates to a kind of cooling devices, and in particular to a kind of cooling battery box structure of air.
Background technique
Battery is one of core component of electric car, and performance quality directly influences the performance of electric car.However It is limited by technical conditions, the performance of power battery is difficult the breakthrough for having big in a short time, if it is desired that electric car obtains quotient Industry application, it is necessary that battery works in optimal conditions, to improve its working performance, extend the service life.On electric car The power battery pack used is made up of multiple battery modules series-parallel system, can all be generated in battery charge and discharge process Heat so that battery pack bulk temperature increases, and can seriously affect battery performance and service life when the temperature is excessively high, or even can be straight Connecing leads to battery failure.Meanwhile when charge and discharge, the heat release or heat dissipation in each list pond unevenly will lead to battery pack in battery pack In there is the temperature difference, the higher cell degradation of local temperature is very fast, and long-play can destroy the consistency of battery pack, to make electricity The failure of pond group.Effective heat management is carried out to battery, when so that battery pack working, interior temperature distribution is uniform, and entire Battery pack temperature maintains within the scope of the optimum working temperature of battery, and to improving, battery performance, extension battery life are most important.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, and providing one kind can ensure inside battery case each The uniformity of temperature profile of battery module and the cooling battery box structure of the air that battery temperature is maintained into best effort range.
The utility model adopts the following technical solution:
A kind of cooling battery box structure of air, including battery case and battery module, the battery case are heterogeneous texture, edge The direction of air flowing, the cross-sectional area of battery case is gradually reduced, battery module along air-flow direction laterally or longitudinally Arrangement.
Battery case shape viewed from above is trapezoidal.
When the battery module lateral arrangement, it is arranged as in-line, stagger arrangement or mixing column.
When the battery module is longitudinally arranged, it is arranged as circular concentric or quincunx.
It further, further include heater.
The utility model whole cooling air is flowed into from the big side of battery case cross-sectional area, the side small from cross-sectional area Outflow;Or part cooling air is flowed into from the big side of battery case cross-sectional area, different positions of the another part from battery case side It sets and flows into batches, finally all flowed out from the small side of cross-sectional area.
It can be rectangular, round or other shapes perpendicular to the battery case cross section of air-flow direction;Battery module It can be round, rectangular or other shapes.
The principles of the present invention:
The heat that battery generates when working takes battery case out of by flowing through the cooling air of battery.When cooling air is from battery The side of cabinet enters Battery case, when cooling down to battery module, along air-flow direction, is arranged in the battery mould of upstream Deblocking temperature is lower, and the battery module temperature in downstream is higher.When battery case cooling using the air, along air-flow direction electricity The cross-sectional area of pond cabinet gradually reduces, so that the flow velocity of cooling air incrementally increases, to enhance the convection current of downstream battery Heat exchange, makes each battery module obtain identical cooling effect, to guarantee the uniformity of temperature profile of each battery module.Separately Outside, when ambient temperature is lower, battery can be heated to by the air after being passed through heating when battery needs to heat, in cooling tube Operating temperature.
The utility model has the beneficial effects that
1, after air enters battery case, due to the cooling effect to battery, so that along air-flow direction, air downstream Temperature is higher than the temperature of upstream air, and the structure can be such that air velocity in battery case incrementally increases from the inlet to the outlet, increases The convection transfer rate of strong downstream battery, to guarantee the uniformity of temperature profile of each battery module in battery case, and maintains most In good working range.
2, simple and reliable for structure, without moving component, it is suitble to the running environment of electric car.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model;
Fig. 2 is the structural schematic diagram of the utility model embodiment 2;
Fig. 3 is the structural schematic diagram of the utility model embodiment 3.
Specific embodiment
Below with reference to examples and drawings, the utility model is described in further detail, but the reality of the utility model It is without being limited thereto to apply mode.
Embodiment 1
As shown in Figure 1, a kind of cooling battery box structure of air, including battery case and multiple battery modules, the multiple electricity Pond module is arranged in battery case, and the battery case is heterogeneous texture, and the battery case in the present embodiment is seen as ladder from top to bottom Shape structure flows direction along cooling air, the cross-sectional area of battery case is gradually reduced, battery mould from air intake to outlet Block is transversely arranged in battery case.
Cooling air enters battery case from the biggish left side of battery case cross-sectional area, carries out to the battery module in battery case It is cooling, it is then flowed out from the lesser right side of battery case cross-sectional area, so air themperature gradually rises along air-flow direction It is high.Simultaneously as along air-flow direction, the cross-sectional area of battery case 101 is gradually reduced, so air in the utility model Flowing velocity is increasing, and the convection transfer rate between battery module and air increases.Therefore, it is possible to guarantee every in battery case A battery module 102 has identical heat dissipation, to can guarantee that the temperature of each battery module is uniform.
The utility model further includes cooling blower and air flow control system, wherein blower can be arranged in battery case Before cooling air is blown into battery case, be also disposed at behind battery case and draw cool air into battery case.
Cause battery temperature too low when ambient temperature is too low, when battery needs to heat, in order to which battery temperature is fast Speed is heated to operating temperature, the air after heating can be passed through cooling device, be additionally provided with heater before the battery case.
Embodiment 2
As shown in Fig. 2, this embodiment differs from embodiment 1 in that, in battery case, along air flow direction, Battery module is to be longitudinally arranged.
Embodiment 3
As shown in figure 3, a kind of cooling battery box structure of air, including battery case and the cylinder electricity being set in battery case Pond module, along air-flow direction, battery module lateral arrangement, Battery case two sides are provided with cooling air inlet 106 With 108.
A part of cooling air enters battery case from the biggish left side of battery case cross-sectional area, another part cooling air from The air inlet 106 and 108 of Battery case side wall surface enters Battery case, cools down to the battery module in battery case, cooling Air flows out battery case from the lesser right side in Battery case cross section.Such battery box structure, can reduce the cooling in downstream The temperature of air, while increasing the flow velocity of downstream cooling air.Thus it can guarantee that the temperature of each battery module in battery case is equal It is even.
Air inlet in Battery case side wall surface, shape, size, arrangement, quantity etc. be not by above-mentioned reality Apply the limitation of example.
In Battery case, shape, quantity, arrangement mode and the air of battery module transversely or longitudinally flow through battery Module etc. is all not restricted to the described embodiments.
Above-described embodiment is the preferable embodiment of the utility model, but the embodiments of the present invention is not by described The limitation of embodiment, it is made under other any spiritual essence and principles without departing from the utility model to change, modify, replacing In generation, simplifies combination, should be equivalent substitute mode, is included within the protection scope of the utility model.

Claims (5)

1. a kind of cooling battery box structure of air, including battery case and battery module, which is characterized in that the battery case is non-equal Even structure, along the direction that air flows, the cross-sectional area of battery case is gradually reduced, and battery module is along air-flow direction cross To or be longitudinally arranged;
Battery case shape viewed from above is trapezoidal.
2. the cooling battery box structure of a kind of air according to claim 1, which is characterized in that battery module lateral arrangement When, it is arranged as in-line, stagger arrangement or mixing column.
3. the cooling battery box structure of a kind of air according to claim 1, which is characterized in that battery module is longitudinally arranged When, it is arranged as circular concentric or quincunx.
4. the cooling battery box structure of a kind of air according to claim 1, which is characterized in that further include heater.
5. a kind of cooling battery box structure of air according to claim 1, which is characterized in that whole cooling airs are from battery The big side of case cross-sectional area flows into, and the side small from cross-sectional area is flowed out;Or part cooling air is from battery case cross-sectional area Big side flows into, and another part flows into batches from the different location of battery case side, finally all from cross-sectional area it is small one Side outflow.
CN201820832233.1U 2018-05-31 2018-05-31 A kind of cooling battery box structure of air Active CN208298895U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820832233.1U CN208298895U (en) 2018-05-31 2018-05-31 A kind of cooling battery box structure of air

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820832233.1U CN208298895U (en) 2018-05-31 2018-05-31 A kind of cooling battery box structure of air

Publications (1)

Publication Number Publication Date
CN208298895U true CN208298895U (en) 2018-12-28

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CN201820832233.1U Active CN208298895U (en) 2018-05-31 2018-05-31 A kind of cooling battery box structure of air

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108550746A (en) * 2018-05-31 2018-09-18 华南理工大学 A kind of air cooling battery box structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108550746A (en) * 2018-05-31 2018-09-18 华南理工大学 A kind of air cooling battery box structure

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