KR101836185B1 - Cooling system for battery - Google Patents

Cooling system for battery Download PDF

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Publication number
KR101836185B1
KR101836185B1 KR1020150103101A KR20150103101A KR101836185B1 KR 101836185 B1 KR101836185 B1 KR 101836185B1 KR 1020150103101 A KR1020150103101 A KR 1020150103101A KR 20150103101 A KR20150103101 A KR 20150103101A KR 101836185 B1 KR101836185 B1 KR 101836185B1
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KR
South Korea
Prior art keywords
air
suction port
housing
cooling
cooling fan
Prior art date
Application number
KR1020150103101A
Other languages
Korean (ko)
Other versions
KR20170011108A (en
Inventor
김병수
이동훈
Original Assignee
주식회사 아모텍
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 주식회사 아모텍 filed Critical 주식회사 아모텍
Priority to KR1020150103101A priority Critical patent/KR101836185B1/en
Priority claimed from EP16814685.0A external-priority patent/EP3316392B1/en
Priority claimed from PCT/KR2016/006653 external-priority patent/WO2016208972A1/en
Publication of KR20170011108A publication Critical patent/KR20170011108A/en
Application granted granted Critical
Publication of KR101836185B1 publication Critical patent/KR101836185B1/en

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    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/655Solid structures for heat exchange or heat conduction
    • H01M10/6556Solid parts with flow channel passages or pipes for heat exchange
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/61Types of temperature control
    • H01M10/613Cooling or keeping cold
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/656Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561Gases
    • H01M10/6563Gases with forced flow, e.g. by blowers
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00Batteries for particular applications
    • H01M2220/20Batteries in motive systems, e.g. vehicle, ship, plane
    • 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
    • Y02E60/12

Abstract

The battery cooling apparatus of the present invention comprises a housing installed in a battery pack and having a suction port through which air having passed through the battery pack is sucked and a discharge port through which air sucked through the suction port is discharged to the outside, A plurality of cooling fans installed in the housing and adapted to suck air through the suction port to discharge air through the discharge port, a PCB mounted inside the housing, electrically connected to the plurality of cooling fans, And a space for securing a distance H between the suction port and the side surface of the battery pack may be formed on a front surface of the housing on which the suction port is formed.

Description

{COOLING SYSTEM FOR BATTERY}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a battery cooling apparatus, and more particularly, to a battery cooling apparatus for cooling heat generated during charging and discharging of a battery.

Generally, a high-capacity battery is installed in an electric vehicle or a hybrid vehicle to supply electric power to a motor and an electric device of the vehicle, and electric energy generated when the vehicle is driven is charged into the battery.

The battery needs a battery cooling system because it will generate heat during repeated charging and discharging, and if the temperature of the battery rises sharply, the life of the battery will be shortened.

A conventional battery cooling device for a vehicle is disclosed in Patent Document 10-1264623 (May 09, 2013), in which warm air inside a battery housing with a built-in battery is discharged to the outside to cool the battery, A plurality of air blowing devices each having a blowing fan therein for sucking and discharging the air in the battery housing, and a plurality of air blowing devices connected to each other so as to communicate with each other, The air blowing device has a scroll-shaped air flow path formed around the blowing fan so that air blown from the blowing fan flows, and at the same time, An inlet ring for guiding the air sucked from the battery housing to the inside of the blowing fan is formed A scroll portion coupled to a motor housing having a motor incorporated therein for driving the blowing fan, and an air outlet portion connected to an outer circumferential surface of the merging portion extending from the scroll portion and discharging air flowing along the scroll portion into the merging portion And a discharging portion.

The battery cooling apparatus includes a pair of battery housings and a pair of battery housings each having a blower fan.

Since the battery cooling apparatus is provided with one blower fan in one battery housing provided with a plurality of batteries, the battery must be cooled through one blower fan, so that the size of the blower fan is increased, There is a growing problem.

In addition, in the conventional battery cooling device, the connecting duct is connected to one side of the battery and the air passing between the batteries is sucked through the connecting duct. At this time, since the air is sucked into one suction passage, There is a problem that the life of the battery is shortened because the battery is not uniformly cooled as a whole.

Patent Registration No. 10-1264623 (May 09, 2013)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a battery cooling apparatus in which a plurality of cooling fans are installed in one housing and connected to one PCB to reduce the size thereof.

It is another object of the present invention to provide a battery cooling device that allows a plurality of intake ports through which air having passed through a battery pack to be sucked to pass evenly over the entire surface of the battery pack, will be.

It is still another object of the present invention to provide a battery cooling apparatus capable of increasing air volume while reducing wind pressure by securing a space through which air passing through a battery pack is introduced into a front surface of a housing in which a suction port is formed.

It is still another object of the present invention to provide a battery cooling device capable of preventing air passage interference generated when air is sucked between a plurality of cooling fans and allowing air to be sucked smoothly.

The battery cooling apparatus of the present invention includes a housing installed in a battery pack and having a suction port through which air having passed through the battery pack is sucked and a discharge port through which air sucked through the suction port is discharged to the outside, A plurality of cooling fans for sucking air through the suction port and discharging air through the discharge port, and a PCB installed inside the housing and electrically connected to the plurality of cooling fans to control operation of the cooling fan And a space for securing a distance H between the suction port and the side surface of the battery pack is formed on a front surface of the housing on which the suction port is formed.

Wherein the plurality of cooling fans includes a first cooling fan, a second cooling fan, and a third cooling fan, wherein the intake port includes a first intake port through which air is sucked into the first cooling fan, And a third suction port through which air is sucked by the third cooling fan.

The front edge of the housing may be in close contact with the side surface of the battery pack to prevent air from leaking, and the space may be recessed inward with respect to the front edge.

The space unit may further include a partition member for partitioning between the suction ports to prevent air passage interference between the cooling fans.

The partition member may include a first partition member formed between the first suction port and the second suction port, and a second partition member formed between the second suction port and the third suction port.

The space portion includes a first space formed by the front edge of the housing and the first partition member closely adhered to the side surface of the battery pack and through which air sucked into the first suction port flows, A second space formed by the member and the second partition member for introducing the air sucked into the second suction port and a front edge of the housing closely contacting the side surface of the battery pack and the second partition member, And a third space part into which air sucked into the suction port flows.

The cooling fan includes a rotating shaft rotatably supported by a support formed in the housing, a stator fixed to an outer circumferential surface of the support and connected to the PCB, a rotor fixed to the rotating shaft and rotated together with the rotating shaft, And a blade in which air is sucked in the axial direction and air is radially discharged.

The PCB has the same number of connection parts as the cooling fan so that a plurality of cooling fans are mounted on the PCB. The connection part has a through hole through which the rotation axis of the cooling fan passes, and is electrically connected to the cooling fan A plurality of terminals may be provided.

As described above, in the battery cooling device of the present invention, a plurality of cooling fans are installed in one housing and connected to one PCB built in the housing, thereby reducing the overall size of the cooling device.

Also, the battery cooling device of the present invention has a plurality of intake ports through which air having passed through the battery pack is sucked, so that air can evenly flow over the entire surface of the battery pack, thereby preventing local cooling of the battery pack .

Further, the battery cooling device of the present invention is characterized in that a space for introducing air passing through the battery pack is formed on a front surface of a housing where a suction port is formed so that a gap (H) is provided between the battery pack and the suction port to increase wind volume .

Further, the battery cooling apparatus of the present invention has a plurality of partition members formed on the front surface of the housing to divide a plurality of spaces into a plurality of cooling fans, thereby preventing air passage interference generated when air is sucked, .

1 is a perspective view of a battery cooling apparatus according to an embodiment of the present invention.
2 is a cross-sectional view of a battery cooling apparatus according to an embodiment of the present invention.
3 is an exploded perspective view of a battery cooling apparatus according to an embodiment of the present invention.
4 is a cross-sectional view illustrating a housing and a cooling fan of a battery cooling apparatus according to an embodiment of the present invention.
5 is a side view in which a battery cooling apparatus according to an embodiment of the present invention is installed in a battery pack.
6 is a plan view showing the inside of a battery cooling apparatus according to an embodiment of the present invention.
7 is a perspective view showing a front surface of a housing in which a partition member of a battery cooling device according to another embodiment of the present invention is installed.
8 is a sectional view showing a partition member of a battery cooling device according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The sizes and shapes of the components shown in the drawings may be exaggerated for clarity and convenience. In addition, terms defined in consideration of the configuration and operation of the present invention may be changed according to the intention or custom of the user, the operator. Definitions of these terms should be based on the content of this specification.

1 to 4, the battery cooling apparatus of the present invention is installed on a side surface of a battery pack 100 and includes a suction port 30 through which air having passed through the battery pack 100 is sucked, A cooling fan 20 installed at a plurality of intervals in the housing 10 so as to generate a blowing force; a cooling fan 20 installed in the housing 10 and electrically connected to the cooling fan 20; And a PCB 50 for controlling the cooling fan 20 and supplying power thereto.

5, a plurality of battery cells 110 are spaced apart to form one battery pack, and a cooling device 200 is installed on one side of the battery pack 100 do. When the cooling device 200 is driven, air is sucked into the space between the battery cells 110 to cool the battery cells 110 while passing between the battery cells 110.

A suction duct 120, through which external air is sucked, may be separately installed on the other side of the battery pack 100, that is, the side opposite to the side where the cooling device 200 is installed.

The housing 10 includes a first housing 12 having a discharge port 40 formed therein and provided with a cooling fan 20 and a PCB 50 and a second housing 12 coupled to the first housing 12 and having a suction port 30 2 housing (14).

The cooling fan 20 may include a first cooling fan 22, a second cooling fan 24, and a third cooling fan 26, which are installed in the housing 10 at regular intervals. The cooling fan 20 may be two or three or more depending on the size of the battery pack 100.

A guide portion 62 in which a plurality of cooling fans 20 are disposed in the housing 10 and guides the air flow to radially discharge the air flowing in the axial direction of the cooling fan 20, The duct unit 150 is formed integrally with the housing 10 to discharge air to the outside.

The guide portion 62 includes a first guide portion 152 mounted with the first cooling fan 22 and guiding the air flow by the first cooling fan 22, A second guide portion 154 for guiding the air flow by the second cooling fan 24 and a third guide portion 154 for guiding air flow by the third cooling fan 26, (156).

The duct unit 150 includes a duct part 66 into which the air blown by the cooling fan 20 flows and an air blower 66 which is formed at the rear upper end of the housing 10 and discharges the air introduced into the duct part 66 to the outside And a discharge port (40).

The duct portion 66 is formed on the upper surface of the first guide portion 152 and the second guide portion 154 and is provided with a first guide portion 152 and a second guide portion 154, And a second duct part 164 formed on the upper surface of the third guide part 156 and through which the air blown by the third cooling fan 26 flows.

The duct portion 66 is formed as one duct portion so that the air blown from the first cooling fan 22, the second cooling fan 24 and the third cooling fan 26 can flow into one duct portion , And three duct portions formed one by one for each cooling fan (20).

The discharge port 40 is formed at the rear of the first duct section 162 and has a first discharge port 42 through which the air introduced into the first duct section 162 is discharged to the outside, And a second discharge port 44 through which the air introduced into the second duct part 164 is discharged to the outside.

Similarly, the discharge port 40 may be formed as one discharge port 40 when the duct portion 66 is formed as one, and three discharge ports 40 may be formed when three duct portions 66 are formed. .

As described above, in the battery cooling apparatus according to the embodiment of the present invention, since the duct unit 150 through which the air is discharged is formed integrally with the housing 10, it is not necessary to provide a duct structure for discharging air, And the miniaturization of the battery cooling device is possible.

The cooling fan 20 includes a rotation shaft 74 rotatably supported by a support 72 mounted on the first housing 12 and a stator 80 fixed to the outer circumferential surface of the support 72 and connected to the PCB 50 A rotor 82 fixed to the rotary shaft 74 and rotated together with the rotary shaft 74 and a blade 84 installed in the rotor 82 and sucking air in the axial direction and discharging air in the radial direction, .

The stator 80 includes a stator core 73 fixed to the outer peripheral surface of the support portion 72 and a coil 75 wound on the stator core 73.

The rotor 82 includes a magnet 77 that is annularly arranged on the outer circumferential surface of the stator 80 with a predetermined gap therebetween and a rotor support body 79 to which the magnet 77 is fixed and the blade 84 is integrally formed .

A first bearing (86) and a second bearing (88) are mounted in the support part (72) to rotatably support the rotation shaft (74).

6, the same number of connecting parts as the cooling fan 20 are connected to the PCB 50 at predetermined intervals so that the cooling fan 20 is electrically connected and the cooling fan 20 is fixed. 50).

The connection portion includes a first connection portion 92 electrically connected to the first cooling fan 22, a second connection portion 94 electrically connected to the second cooling fan 24, And a third connection portion 96 electrically connected thereto.

The first connection part 92, the second connection part 94 and the third connection part 96 are formed to protrude from one side of the PCB 50 at regular intervals.

Terminals are formed in the circumferential direction of the connecting portion 90, and the terminals are electrically connected to the stator 80. That is, when the cooling fan 20 is assembled to the connection portion, the coils 75 of the stator 80 come into contact with the terminals and are electrically connected.

On the front surface of the housing 10, the same number of suction ports 30 as the cooling fan 20 are formed. That is, the suction port 30 includes a first suction port 32 through which air is sucked into the first cooling fan 22, a second suction port 34 through which air is sucked by the second cooling fan 24, And a third suction port 36 through which air is sucked into the fan 26.

Since the cooling device of the present invention is provided with a plurality of cooling fans 30 and disposed on one surface of the battery pack 100, air can be evenly distributed over the entire surface of the battery cell 110, . That is, when the number of the cooling fans 20 is three, the number of the intake ports 30 is three, and the three intake ports 30 are arranged at a predetermined interval on one side of the battery pack 100, Air can be evenly distributed.

As in the conventional cooling device, when there is one suction port for sucking air, the central portion of the suction port becomes strong in suction force, and the suction force decreases toward the edge of the suction port. Accordingly, the central portion of the battery cell 110 is rapidly cooled due to a large amount of air blowing, and the peripheral portion of the battery cell 110 is cooled slowly with a relatively small air blowing amount.

If the cooling rates of the battery cells 110 are different from each other, the temperature of the battery cells 110 varies depending on the positions of the battery cells 110, thereby shortening the service life of the battery cells 110.

The cooling device of the present invention includes a plurality of cooling fans 20 and a plurality of suction openings 30 to uniformly blow air over the entire surface of the battery cell 110 to prevent local cooling of the battery cell 110 So that the battery cell 110 can be prevented from being locally damaged by heat.

The front surface of the housing 10 in which the suction port 30 is formed is brought into close contact with the side surface of the battery pack 100 to prevent air from leaking. A space portion 16 through which the air passing between the battery cells 110 flows is formed on the front surface of the housing 10.

The space portion 16 is recessed inwardly of the housing 10 from the front edge of the housing 10 so that the space between the inlet portion 30 and the battery pack 100 is not directly connected to the battery cell 110, The air is sucked into the suction port 30 after being introduced into the space portion 16.

Since the space portion 16 formed in the housing 10 is guided to the cooling fan 20 through the suction port 30 after the air having passed through the battery cells 110 flows into the space portion 16 Wind pressure can be reduced and wind volume can be increased.

7 and 8, a partition member 130 for preventing air passage interference between the plurality of cooling fans 20 is formed on the front surface of the housing 10. As shown in Fig.

The partition member 130 divides the space portion 16 into a plurality of spaces and is formed between the first suction port 32 and the second suction port 34 to form the first suction port 32 and the second suction port 34, And the second suction port 34 and the third suction port 36 formed between the second suction port 34 and the third suction port 36. The first suction port 34 and the third suction port 36 are formed between the second suction port 34 and the third suction port 36, And a second partition member 134 for preventing the air introduced into the second partition member 134 from interfering with each other.

The first partition member 132 is formed to protrude between the first suction port 32 and the second suction port 34 and the second partition member 134 is formed between the second suction port 34 and the third suction port 36 As shown in FIG.

Accordingly, the space portion 16 includes a first space portion 16a into which air sucked into the first suction port 32 flows, a second space portion 16b into which air sucked into the second suction port 34 flows, And a third space 16c into which the air sucked into the third suction port 36 flows.

Thus, when the front surface of the housing 10 is divided into the plurality of space portions 16 by the partition member 130, the air introduced into the first space portion 16a is sucked only into the first suction port 32, The air introduced into the second space 16b is sucked only into the second suction port 34 and the air introduced into the third space 16c is sucked into the third suction port 36, It is possible to prevent the occurrence of the wind-induced interference of the air- When the air passage interference of the cooling fan 20 is reduced, the vortex of the air flowing into the suction port 30 is reduced and the air flow rate can be increased.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limited to the embodiments set forth herein. Various changes and modifications may be made by those skilled in the art.

10: housing 12: first housing
14: second housing 16:
16a: first space part 16b: second space part
16c: third space part 20: cooling fan
30: inlet port 32: first inlet port
34: second suction port 36: third suction port
40: Discharge port 50: PCB
52, 54: terminal 62:
66: duct part 72: support part
74: rotating shaft 80:
82: rotor 84: blade
92: first connection part 94: second connection part
96: Third connection part 100: Battery pack
130: partition member 132: first partition member
134: second partition member

Claims (8)

  1. A housing installed in the battery pack and having a suction port through which air having passed through the battery pack is sucked and a discharge port through which air sucked through the suction port is discharged to the outside;
    A plurality of cooling fans installed at intervals in the housing to draw air through the air inlet and discharge air through the air outlet; And
    And a PCB installed inside the housing and electrically connected to the plurality of cooling fans to control operation of the cooling fan,
    A space for securing a distance H between the suction port and the side surface of the battery pack is formed on a front surface of the housing where the suction port is formed,
    Wherein the front edge of the housing is in close contact with a side surface of the battery pack to prevent air from leaking, and the space is recessed inward in relation to the front edge.
  2. The method according to claim 1,
    Wherein the plurality of cooling fans include a first cooling fan, a second cooling fan, and a third cooling fan,
    The suction port includes a first suction port through which air is sucked into the first cooling fan, a second suction port through which air is sucked by the second cooling fan, and a third suction port through which air is sucked by the third cooling fan The battery cooling apparatus comprising:
  3. delete
  4. 3. The method of claim 2,
    Wherein the space portion further includes a partition member for dividing the space between the suction ports to prevent air passage interference between the cooling fans.
  5. 5. The method of claim 4,
    Wherein the partition member includes a first partition member formed between the first suction port and the second suction port, and a second partition member formed between the second suction port and the third suction port.
  6. 6. The method of claim 5,
    Wherein the space portion includes a first space formed by the front edge of the housing and the first partition member closely adhered to a side surface of the battery pack and through which air sucked into the first suction port flows;
    A second space formed by the front edge of the housing and the first and second partition members into which air sucked into the second suction port flows; And
    And a third space formed by the front edge of the housing and the second partition member, which is brought into close contact with the side surface of the battery pack, through which the air sucked into the third suction port flows.
  7. The method according to claim 1,
    The cooling fan includes a rotation shaft rotatably supported by a support portion formed in the housing,
    A stator fixed to an outer circumferential surface of the support portion and connected to the PCB,
    A rotor fixed to the rotating shaft and rotated together with the rotating shaft,
    And a blade installed in the rotor and sucking air in an axial direction and discharging air in a radial direction.
  8. The method according to claim 1,
    The PCB has the same number of connection parts as the cooling fan so that a plurality of cooling fans are mounted,
    Wherein the connecting portion has a through hole through which the rotating shaft of the cooling fan passes, and a plurality of terminals electrically connected to the cooling fan are provided at the center thereof.
KR1020150103101A 2015-07-21 2015-07-21 Cooling system for battery KR101836185B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150103101A KR101836185B1 (en) 2015-07-21 2015-07-21 Cooling system for battery

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR1020150103101A KR101836185B1 (en) 2015-07-21 2015-07-21 Cooling system for battery
EP16814685.0A EP3316392B1 (en) 2015-06-24 2016-06-23 Battery cooling apparatus
CN201680026890.0A CN107592946B (en) 2015-06-24 2016-06-23 Battery cooling device
PCT/KR2016/006653 WO2016208972A1 (en) 2015-06-24 2016-06-23 Battery cooling apparatus

Publications (2)

Publication Number Publication Date
KR20170011108A KR20170011108A (en) 2017-02-02
KR101836185B1 true KR101836185B1 (en) 2018-03-08

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102074321B1 (en) * 2015-08-11 2020-02-06 주식회사 엘지화학 Cooling apparatus for Battery module and Power storage apparatus including the same
KR102093308B1 (en) * 2017-02-20 2020-03-25 엘지전자 주식회사 Cooling Module for battery module and Refrigerant cycling device having the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101264623B1 (en) 2010-09-28 2013-05-24 한라비스테온공조 주식회사 Battery cooling device for vehicle

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