KR20050070727A - Apparatus for cooling battery - Google Patents

Apparatus for cooling battery Download PDF

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Publication number
KR20050070727A
KR20050070727A KR20030100893A KR20030100893A KR20050070727A KR 20050070727 A KR20050070727 A KR 20050070727A KR 20030100893 A KR20030100893 A KR 20030100893A KR 20030100893 A KR20030100893 A KR 20030100893A KR 20050070727 A KR20050070727 A KR 20050070727A
Authority
KR
South Korea
Prior art keywords
battery
air
cooling
case
air movement
Prior art date
Application number
KR20030100893A
Other languages
Korean (ko)
Inventor
박선순
Original Assignee
현대자동차주식회사
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 현대자동차주식회사 filed Critical 현대자동차주식회사
Priority to KR20030100893A priority Critical patent/KR20050070727A/en
Publication of KR20050070727A publication Critical patent/KR20050070727A/en

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    • Y02E60/12

Abstract

Disclosed is a battery cooling apparatus for an electric vehicle. The battery cooling apparatus of such an electric vehicle includes a case in which a battery is provided therein, and a first air movement passage provided on an upper portion of the battery case and having an inclined shape such that an exit direction from which air is discharged has a cross-sectional area larger than an entrance direction. And a second air movement passage provided at a lower portion of the battery case and having an inclined shape such that an entry direction into which air is introduced has a larger cross-sectional area than an exit direction. The cooling device of the battery for an electric vehicle is formed to be inclined to the upper and lower parts of the battery case, thereby cooling the battery efficiently, and thus has an advantage of cooling the battery even in a smaller space.

Description

Battery Cooling System for Electric Vehicles {APPARATUS FOR COOLING BATTERY}

The present invention relates to a battery cooling device, and more particularly, to a battery cooling device capable of efficiently cooling a battery by forming upper and lower taper in an air passage for cooling the battery.

Typically, electric vehicles or hybrid battery vehicles are equipped with large capacity batteries. As such batteries, nickel metal hydride batteries, lithium ion batteries, lithium ion polymer batteries and the like are mainly used.

Among them, lithium-ion polymer batteries are attracting attention as next-generation batteries as high-output and high-density batteries compared to other batteries.

However, these batteries are highly dependent on their performance, especially at high temperatures, resulting in electrolyte degradation, which significantly reduces their lifetime.

Therefore, various methods for preventing such a temperature rise of the battery have been developed, an example of which is shown in FIG.

That is, the battery 1 is provided inside the case 2, and the air passage 3 for cooling the battery 1 is disposed above and below the case 2. The air passage 3 is formed from the front (I) to the rear (II).

Accordingly, air is sucked from the inlet 5 formed in the front I of the air passage 3 and flows to the outlet 4 formed in the rear II to cool the batteries 4 below a predetermined temperature.

However, the cooling scheme of such a structure has a problem that it is not possible to efficiently cool the batteries because the cross-sectional area of the air passage is fixed to cool each battery by only a predetermined amount of air.

In addition, there is a problem that the air passage for cooling the battery takes up a lot of space.

An object of the present invention is to solve the problems as described above, it is possible to efficiently cool the battery by varying the cross-sectional area of the air passage by forming a taper on the top and bottom of the air passage for cooling the battery The present invention provides a cooling device for an electric vehicle battery.

In addition, the present invention provides a cooling device for an electric vehicle battery capable of realizing high cooling efficiency even in a small space by forming a taper in the air passage of the battery and cooling it.

In order to achieve the above object, the present invention includes a case having a battery therein; A first air movement path provided on an upper portion of the battery case and having an inclined shape such that an exit direction from which air is discharged has a cross-sectional area larger than an entrance direction; And it is provided in the lower portion of the battery case, and provides a battery cooling device of an electric vehicle including a second air movement passage having an inclined shape so that the inlet direction in which air is introduced has a larger cross-sectional area than the exit direction.

Hereinafter, with reference to the accompanying drawings will be described in detail the cooling device for an electric vehicle battery according to a preferred embodiment of the present invention.

As shown in Figures 2 and 3, the battery (Battery) 10 proposed by the present invention is appropriately disposed inside the case (Case) 12. Then, the case 12 is the air is sucked in from the inlet 14 formed in the front (I) and the air is discharged through the outlet 16 formed in the rear (II), in this process the battery 10 to the air By cooling appropriately.

The case 12 has a structure in which the battery 10 is appropriately cooled by the variable cross section by having the air passages 15 and 18 tapered in the upper and lower portions thereof.

In more detail, the case 12 of the battery 10 includes an upper air movement path 18 provided in a tapered shape on the upper side, and a lower air movement path 15 provided in the lower portion and having a tapered shape. And a panel (20) provided at the rear (II) of the upper air movement passage (18) to remove the deviation of the flow velocity.

The upper air movement path 18 has an inclined shape. That is, it has larger cross-sectional area from the front side (I) to the rear side (II). Therefore, the air flowing into the front side I of the upper air movement path 18 moves to the rear side II at a variable speed, thereby cooling the battery 10 more efficiently than the air movement path having a constant cross-sectional area. .

In addition, the lower movable passage 15 also has an inclined shape. That is, it has smaller cross-sectional area from the front side (I) to the rear side (II). Therefore, the air flowing into the front side I of the upper air movement passage 18 moves to the rear side II at a variable speed to efficiently cool the battery 10.

On the other hand, as described above, the upper air movement path 18 is slower the air movement speed toward the rear side (II), so the temperature of the battery 10 in this zone is increased.

Accordingly, the panel 20 is provided to prevent a partial temperature rise of the battery 10.

That is, by installing the panel 20 inside the rear side II of the upper air movement passage 18, it is possible to reduce the difference between the air speeds of the front side I and the rear side II.

Partial temperature rise of the battery 10 can be prevented by reducing the difference in the air speeds at the front and rear sides I and II of the upper air movement passage 18.

This effect can be explained more clearly by the graph shown in FIG. In other words, when the panel 20 is not installed, the number 1 sensor is 5.6 2, the number 2 sensor is 6.5 ㎧, the number 3 sensor is 6.7 에, and 4 in the air flow velocity of the upper air movement path 18. Sensor displays 7.3㎧. That is, the deviation of the air flow rate is about 1.7 kPa.

On the other hand, when the panel 20 is installed, the first sensor is 6.5 kV, the second sensor 6.7 kV, the third sensor 6.8 kV, the fourth sensor 7 kV, and the deviation of the air flow rate is about 0.5 kPa.

That is, when the panel is not installed, the temperature deviation can be reduced by about three times or more compared with the case where the panel is not installed.

As a result, the air introduced through the inlet 14 may move along the inside of the upper and lower air passages 18 and 15 in the tapered shape, thereby efficiently cooling the battery 10.

As described above, the upper and lower air passages 18 and 15 are described by the structure in which the upper and lower portions of the case 12 are disposed. However, the present invention is not limited thereto, and the upper and lower air passages 18 are not limited thereto. It is, of course, also possible that the structure 15 is disposed on the left and right sides of the case 12.

In addition, in the above, the panel has been described as being limited to being installed in the upper air movement passage, but the present invention is not limited thereto, and of course, it can be installed in the lower air movement passage.

The cooling device for an electric vehicle battery according to the present invention as described above can be formed to be inclined to the upper and lower portions of the battery case to efficiently cool the battery, thereby reducing the space for battery installation and reducing the weight. have.

In addition, by installing a panel inside the air moving passage has the advantage of reducing the temperature difference by reducing the difference between the air flow rate of the entry and exit side to improve the cooling efficiency of the battery.

The present invention has been described above with reference to the embodiments shown in the drawings. However, the present invention is not limited thereto, and various modifications or other embodiments falling within the scope equivalent to the present invention are possible by those skilled in the art. Therefore, the true scope of protection of the present invention should be defined by the following claims.

1 is a side view showing a mounting structure of a battery for a hybrid electric vehicle according to the prior art.

2 is a side view illustrating a mounting structure of a battery for a hybrid electric vehicle according to a preferred embodiment of the present invention.

FIG. 3 is a graph showing an increase in cooling efficiency by the panel of the battery cooling apparatus for an electric vehicle shown in FIG.

<Explanation of symbols for the main parts of the drawings>

10 ... Battery 12 ... Case

15 ... lower air passage 18 ... upper air passage

20 ... Panel

Claims (4)

  1. A case having a battery provided therein;
    A first air movement path provided on an upper portion of the battery case and having an inclined shape such that an exit direction from which air is discharged has a cross-sectional area larger than an entrance direction; And
    The battery cooling apparatus of the electric vehicle provided in the lower portion of the battery case, the second air movement passage having an inclined shape so that the entry direction in which air is introduced has a larger cross-sectional area than the exit direction.
  2. The battery cooling apparatus of claim 1, wherein an additional panel is provided inside the first air movement path to reduce a variation in air flow rates between the entry and exit sides.
  3. The battery cooling apparatus of claim 1, wherein an additional panel is provided inside the second air movement passage to reduce a variation in air flow rates between the entry and exit sides.
  4. The battery cooling apparatus of claim 1, wherein the first and second air movement passages may be provided at both sides of the battery case.
KR20030100893A 2003-12-30 2003-12-30 Apparatus for cooling battery KR20050070727A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR20030100893A KR20050070727A (en) 2003-12-30 2003-12-30 Apparatus for cooling battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR20030100893A KR20050070727A (en) 2003-12-30 2003-12-30 Apparatus for cooling battery

Publications (1)

Publication Number Publication Date
KR20050070727A true KR20050070727A (en) 2005-07-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR20030100893A KR20050070727A (en) 2003-12-30 2003-12-30 Apparatus for cooling battery

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KR (1) KR20050070727A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009108013A2 (en) * 2008-02-28 2009-09-03 주식회사 엘지화학 Jet type battery pack for electric vehicle
WO2011021843A3 (en) * 2009-08-20 2011-06-30 주식회사 엘지화학 Battery pack having a novel cooling structure
WO2012173351A3 (en) * 2011-06-13 2013-04-04 주식회사 엘지화학 Battery pack having improved uniformity in distribution of refrigerant
WO2013085226A1 (en) * 2011-12-08 2013-06-13 에스케이이노베이션 주식회사 Cell assembly type battery cooling apparatus
KR101372436B1 (en) * 2010-09-17 2014-03-10 에스케이이노베이션 주식회사 Battery case
WO2014207341A1 (en) * 2013-06-28 2014-12-31 Renault S.A.S Cooling conduit
KR20150002982A (en) * 2013-06-28 2015-01-08 현대자동차주식회사 Battery cooling system for vehicle
CN105489796A (en) * 2014-10-06 2016-04-13 株式会社Lg化学 Battery pack case, battery pack, and apparatus using battery pack as power supply
US9676281B2 (en) 2011-10-18 2017-06-13 Jsyoungtech Co., Ltd. Hybrid battery system for electric vehicles
US10286805B2 (en) 2015-01-20 2019-05-14 Jsyoungtech Co., Ltd Hybrid energy storage module system

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009108013A2 (en) * 2008-02-28 2009-09-03 주식회사 엘지화학 Jet type battery pack for electric vehicle
WO2009108013A3 (en) * 2008-02-28 2009-11-26 주식회사 엘지화학 Jet type battery pack for electric vehicle
US20110008657A1 (en) * 2008-02-28 2011-01-13 Chae-Ho Chung Z-type battery pack for vehicle
CN101960663A (en) * 2008-02-28 2011-01-26 Lg化学株式会社 Jet type battery pack for electric vehicle
JP2011515798A (en) * 2008-02-28 2011-05-19 エルジー・ケム・リミテッド Z type battery pack for automobiles
US8435661B2 (en) 2008-02-28 2013-05-07 Lg Chem, Ltd. Z-type battery pack for vehicle
US9178253B2 (en) 2009-08-20 2015-11-03 Lg Chem, Ltd. Battery pack having novel cooling structure
CN102484297A (en) * 2009-08-20 2012-05-30 株式会社Lg化学 Battery pack having a novel cooling structure
JP2013502688A (en) * 2009-08-20 2013-01-24 エルジー・ケム・リミテッド Battery pack with new cooling structure
KR101143279B1 (en) * 2009-08-20 2012-05-11 주식회사 엘지화학 Battery Pack Having Novel Cooling Structure
WO2011021843A3 (en) * 2009-08-20 2011-06-30 주식회사 엘지화학 Battery pack having a novel cooling structure
US9537187B2 (en) 2009-08-20 2017-01-03 Lg Chem, Ltd. Battery pack having novel cooling structure
KR101372436B1 (en) * 2010-09-17 2014-03-10 에스케이이노베이션 주식회사 Battery case
WO2012173351A3 (en) * 2011-06-13 2013-04-04 주식회사 엘지화학 Battery pack having improved uniformity in distribution of refrigerant
US9537186B2 (en) 2011-06-13 2017-01-03 Lg Chem, Ltd. Battery pack providing improved distribution uniformity in coolant
KR101390224B1 (en) * 2011-06-13 2014-05-12 주식회사 엘지화학 Battery Pack Providing Improved Distribution Uniformity in Coolant
US9676281B2 (en) 2011-10-18 2017-06-13 Jsyoungtech Co., Ltd. Hybrid battery system for electric vehicles
WO2013085226A1 (en) * 2011-12-08 2013-06-13 에스케이이노베이션 주식회사 Cell assembly type battery cooling apparatus
FR3007698A1 (en) * 2013-06-28 2015-01-02 Renault Sa Cooling duct
WO2014207341A1 (en) * 2013-06-28 2014-12-31 Renault S.A.S Cooling conduit
KR20150002982A (en) * 2013-06-28 2015-01-08 현대자동차주식회사 Battery cooling system for vehicle
US9825342B2 (en) 2013-06-28 2017-11-21 Renault S.A.S. Cooling conduit
CN105489796A (en) * 2014-10-06 2016-04-13 株式会社Lg化学 Battery pack case, battery pack, and apparatus using battery pack as power supply
WO2016056774A1 (en) * 2014-10-06 2016-04-14 주식회사 엘지화학 Battery pack case having efficient cooling structure
CN105489796B (en) * 2014-10-06 2018-02-16 株式会社Lg化学 Battery housing, battery pack and use device of the battery pack as power supply
US10286805B2 (en) 2015-01-20 2019-05-14 Jsyoungtech Co., Ltd Hybrid energy storage module system

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