CN112864493A - Novel battery box air cooling system - Google Patents

Novel battery box air cooling system Download PDF

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Publication number
CN112864493A
CN112864493A CN202110133582.0A CN202110133582A CN112864493A CN 112864493 A CN112864493 A CN 112864493A CN 202110133582 A CN202110133582 A CN 202110133582A CN 112864493 A CN112864493 A CN 112864493A
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CN
China
Prior art keywords
box
air
air supply
communicated
cooling system
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202110133582.0A
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Chinese (zh)
Inventor
赵帅帅
郑士鹏
吴建军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yancheng Guotou Zhongke New Energy Technology Co ltd
Original Assignee
Yancheng Guotou Zhongke New Energy Technology Co ltd
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.)
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Publication date
Application filed by Yancheng Guotou Zhongke New Energy Technology Co ltd filed Critical Yancheng Guotou Zhongke New Energy Technology Co ltd
Priority to CN202110133582.0A priority Critical patent/CN112864493A/en
Publication of CN112864493A publication Critical patent/CN112864493A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H01ELECTRIC 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/26Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
    • HELECTRICITY
    • H01ELECTRIC 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
    • H01M10/62Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625Vehicles
    • HELECTRICITY
    • H01ELECTRIC 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
    • H01M10/6562Gases with free flow by convection only
    • HELECTRICITY
    • H01ELECTRIC 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
    • H01M10/66Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
    • H01M10/663Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an air-conditioner or an engine
    • 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
    • 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
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Secondary Cells (AREA)

Abstract

The invention provides a novel battery box air cooling system, which comprises: an air conditioner, one side of which is provided with an air conditioner air outlet and an air conditioner air return inlet; the flow equalizing box is of a cavity structure with two open ends, a perforated plate is arranged in the flow equalizing box, one end of the flow equalizing box is open and communicated with the air outlet of the air conditioner, and the other end of the flow equalizing box is communicated with the air supply box; the air supply box is internally provided with modules at intervals, and cold air in the air supply box cools the modules; the combiner box is used for cooling the module by cold air and then converging the module into the combiner box; and one end of the air return box is communicated with the confluence box, and the other end of the air return box is communicated with the air return opening of the air conditioner. The novel battery box air cooling system structure provided by the invention has the advantages that the air flow organization is reasonable, the heat exchange efficiency of the module and the air supply of an air conditioner is high, the air quantity of each air supply branch is uniform, and the temperature of the battery cores in the module and the temperature difference between the battery cores are reduced.

Description

Novel battery box air cooling system
Technical Field
The invention relates to the technical field of square power battery thermal management, in particular to a novel battery box air cooling system.
Background
In recent years, with the excessive exploitation of fossil energy, the energy crisis has become a big problem for people, and the excessive utilization of fossil energy also causes serious environmental pollution. Based on this, the lithium battery power technology has become the leading technology of the disputed development of various countries.
Along with the rapid development of power lithium battery systems, the energy density of lithium batteries is larger and larger, the heat productivity of battery cores is gradually increased, the temperature has great influence on the performance, the service life and the like of the batteries, and the traditional natural heat dissipation mode cannot meet the temperature requirement of the battery cores. Reliable cooling systems are key factors for the application of lithium battery technology at present.
Fig. 1 shows a conventional square battery box, and the right side of the box is a side wall type air conditioner for supplying cooling capacity to the battery box. This device has the following disadvantages:
a passage is formed between the air conditioner air supply outlet 1 and the air conditioner air return inlet 2, a large amount of cold air sent out by the air supply outlet does not cool the battery module 3 and directly flows back to the air conditioner air return inlet, and a large amount of cold air is in short circuit, so that a large amount of cold energy is directly wasted;
the contact surface of electricity core and cold wind is limited to the module bottom only, and nevertheless current design can't make the effectual cooling module bottom of cold wind, and cooling efficiency is lower.
The air quantity at the bottom of each module is inconsistent, and even the phenomenon that the air supply of an air conditioner is not generated at the bottom of part of modules exists.
Disclosure of Invention
The invention aims to provide a novel battery box air cooling system, which manages the airflow organization of the device, optimizes the airflow organization, increases the heat exchange efficiency between a module and air supply of an air conditioner, reduces the temperature of the module and simultaneously reduces the temperature difference between electric cores.
In order to achieve the purpose, the invention provides the following technical scheme: a novel battery box air cooling system comprises:
an air conditioner, one side of which is provided with an air conditioner air outlet and an air conditioner air return inlet;
the flow equalizing box is of a cavity structure with two open ends, a perforated plate is arranged in the flow equalizing box, one end of the flow equalizing box is open and communicated with the air outlet of the air conditioner, and the other end of the flow equalizing box is communicated with the air supply box;
the air supply box is internally provided with modules at intervals, and cold air in the air supply box cools the modules;
the combiner box is used for cooling the module by cold air and then converging the module into the combiner box;
and one end of the air return box is communicated with the confluence box, and the other end of the air return box is communicated with the air return opening of the air conditioner.
As an improvement of the invention, the outer shell of the flow equalizing box is surrounded by four side plates, and at least two perforated plates are fixedly connected to the inner walls of the side plates.
As an improvement of the present invention, the blow box includes:
the rectification box is arranged vertically, one side of the rectification box is communicated with the flow equalizing box, and the other side of the rectification box is horizontally communicated with an air supply branch;
and the air supply branches are provided with radiating fin mounting openings for mounting radiating fins.
As an improvement of the present invention, the collecting box is disposed opposite to the blowing box, and a collecting port is disposed on the collecting box facing the blowing box and is communicated with the blowing branch.
As an improvement of the invention, the air return box is of a plate-shaped cavity structure.
As an improvement of the invention, the heat sink is located below the module, and a heat conducting pad is additionally arranged between the module and the heat sink.
As an improvement of the invention, the radiating fin is a staggered pin fin type radiating fin.
As an improvement of the invention, the heat sink is a staggered plate-fin heat sink.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
Fig. 1 is a schematic structural diagram of a conventional square battery box;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic structural diagram of a flow equalizing box according to the present invention;
FIG. 4 is a schematic view of the structure of the blower box of the present invention;
FIG. 5 is a schematic view of the structure of the heat sink of the present invention;
FIG. 6 is a schematic view of another heat sink in accordance with the present invention;
FIG. 7 is a schematic structural view of the return air box of the present invention.
The components in the figure are:
1-an air-conditioning air supply outlet,
2-an air return opening of the air conditioner,
3-a battery module, wherein the battery module is provided with a battery,
4-flow equalizing box, 41-side plate, 42-perforated plate,
5-air supply box, 51-rectification box, 52-air supply branch, 53-radiating fin mounting hole,
6-a header box, 61-a junction,
7-an air return box, wherein,
8-the heat-radiating fin is arranged on the upper surface of the shell,
9-heat conducting pad.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Referring to fig. 1, a novel battery box air cooling system includes:
an air conditioner, one side of which is provided with an air conditioner air outlet 1 and an air conditioner air return inlet 2;
the flow equalizing box 4 is of a cavity structure with two open ends, a porous plate 42 is arranged in the flow equalizing box 4, one end of the flow equalizing box 4 is open and communicated with the air outlet 1 of the air conditioner, and the other end of the flow equalizing box is communicated with the air supply box 5;
the module 3 is arranged in the air supply box 5 at intervals, and cold air in the air supply box 5 cools the modules 3;
the confluence box 6 is used for cooling the module 3 by cold air and then converging the cooled module into the confluence box 6;
and one end of the air return box 7 is communicated with the confluence box 6, and the other end of the air return box is communicated with the air return opening 2 of the air conditioner.
The working principle of the technical scheme is as follows: the invention discloses a novel air cooling system structure of a battery box, which is used for the heat management of a square battery box. The cooling air flows to the flow equalizing box 4 through the air outlet 1, the air outlet of the air outlet 1 is uneven, the air speed distribution of each area of the air outlet is inconsistent, and the air outlet direction is inclined downwards. The flow equalizing box 4 has the function of converting air supplied by the air conditioner into horizontal and uniform cooling airflow which enters the air supply box 5. The final purpose of the flow equalizing box 4 and the air supply box 5 is to divide the air supply of the air conditioner into three air supply branches with basically consistent flow.
As shown in fig. 6. The cooling air flow takes away the module heat and then converges to the confluence box 6 through the confluence port 61, and then returns to the air-conditioning return air inlet 2 through the return air box 7, thereby completing a cooling cycle.
The beneficial effects of the above technical scheme are that: the novel battery box air cooling system structure provided by the invention has the advantages that the air flow organization is reasonable, the heat exchange efficiency of the module and the air supply of an air conditioner is high, the air quantity of each air supply branch is uniform, and the temperature of the battery cores in the module and the temperature difference between the battery cores are reduced.
As an embodiment of the present invention, the outer casing of the flow equalizing box 4 is surrounded by four side plates 41, and at least two porous plates 42 are fixed on the inner walls of the side plates 41.
The working principle and the beneficial effects of the technical scheme are as follows: the flow-equalizing box 4 consists of a side plate 41 and at least two perforated plates 42, the detailed structure of which is shown in fig. 3 (the upper side plate is hidden).
As an embodiment of the present invention, the blow box 5 includes:
the rectifying box 51 is vertically arranged, one side of the rectifying box is communicated with the flow equalizing box 4, and the other side of the rectifying box is horizontally communicated with an air supply branch 52;
and the air supply branches 52 are all provided with radiating fin mounting openings 53 for mounting radiating fins 8.
The working principle and the beneficial effects of the technical scheme are as follows: the blowing box 5 comprises a rectifying box 51 and three blowing branches 52, and each blowing branch is provided with a cooling fin mounting opening 53 for mounting a cooling fin 8, and the detailed structure of the blowing box is shown in figure 4.
In one embodiment of the present invention, the collecting box 6 is provided to face the air blowing box 5, a collecting port 61 is provided on the collecting box 6 to face the air blowing box 5, and the collecting port 61 communicates with the air blowing branch 52.
As an embodiment of the present invention, the return air box 7 has a plate-shaped cavity structure.
As an embodiment of the present invention, the heat sink 8 is located below the module 3, and a thermal pad 9 is additionally installed between the module 3 and the heat sink 8.
As an embodiment of the present invention, the heat sink 8 is a staggered pin fin type heat sink.
As an embodiment of the present invention, the heat sink 8 is a staggered plate-fin heat sink.
The working principle and the beneficial effects of the technical scheme are as follows: the cooling fin 8 is installed in module 3 bottom, can greatly improve the cooling efficiency between cold wind air current and electric core, simultaneously in order to reduce the thermal contact resistance between electric core and the cooling fin, installs thermal pad 9 additional between module 3 bottom and cooling fin 8. The radiating fins 8 are staggered pin fin type radiating fins which can increase airflow disturbance and improve heat exchange efficiency, and the radiating fins 8 can also be replaced by staggered plate fin type radiating fins 10.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (8)

1. The utility model provides a novel battery box air cooling system which characterized in that includes:
an air conditioner, wherein one side surface of the air conditioner is provided with an air conditioner air outlet (1) and an air conditioner air return inlet (2);
the flow equalizing box (4) is of a cavity structure with two open ends, a porous plate (42) is arranged in the flow equalizing box, one end of the flow equalizing box (4) is open and communicated with the air outlet (1) of the air conditioner, and the other end of the flow equalizing box (4) is communicated with the air supply box (5);
the air supply box (5), the modules (3) are arranged in the air supply box (5) at intervals, and cold air in the air supply box (5) cools the modules (3);
the combiner box (6) is used for cooling the module (3) by cold air and then converging the cooled module into the combiner box (6);
and one end of the air return box (7) is communicated with the confluence box (6), and the other end of the air return box is communicated with the air return opening (2) of the air conditioner.
2. The novel battery box air cooling system according to claim 1, characterized in that: the shell of the flow equalizing box (4) is formed by surrounding four side plates (41), and at least two porous plates (42) are fixedly connected to the inner walls of the side plates (41).
3. The novel battery box air cooling system according to claim 1, characterized in that: the air supply box (5) comprises:
the rectifying box (51) is arranged vertically, one side of the rectifying box is communicated with the flow equalizing box (4), and the other side of the rectifying box is horizontally communicated with an air supply branch (52);
the air supply branches (52), the air supply branches (52) are all provided with radiating fin mounting openings (53) for mounting radiating fins (8).
4. The novel battery box air cooling system as claimed in claim 3, wherein: the confluence box (6) is opposite to the air supply box (5), a confluence opening (61) is formed in the confluence box (6) facing the air supply box (5), and the confluence opening (61) is communicated with the air supply branch (52).
5. The novel battery box air cooling system according to claim 1, characterized in that: the air return box (7) is of a plate-shaped cavity structure.
6. A novel battery box air cooling system according to claim 3, characterized in that the heat sink (8) is located below the module (3), and a heat conducting pad (9) is additionally arranged between the module (3) and the heat sink (8).
7. The novel battery box air cooling system as claimed in claim 6, wherein the heat sink (8) is a staggered pin fin heat sink.
8. The new battery box air cooling system as claimed in claim 6, characterized in that the heat sink (8) is a staggered plate-fin heat sink.
CN202110133582.0A 2021-02-01 2021-02-01 Novel battery box air cooling system Pending CN112864493A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110133582.0A CN112864493A (en) 2021-02-01 2021-02-01 Novel battery box air cooling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110133582.0A CN112864493A (en) 2021-02-01 2021-02-01 Novel battery box air cooling system

Publications (1)

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CN112864493A true CN112864493A (en) 2021-05-28

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11132623A (en) * 1997-10-30 1999-05-21 Nippon Light Metal Co Ltd Cooling unit and refrigerator using the same
CN202562170U (en) * 2012-03-06 2012-11-28 合肥美的荣事达电冰箱有限公司 Air duct outlet component for air cooling refrigerator
CN203518155U (en) * 2013-07-29 2014-04-02 北京康孚科技股份有限公司 Displacement-type uniform-air-supply air supply device for air conditioning equipment
CN206113241U (en) * 2016-08-12 2017-04-19 东莞市华科净化工程有限公司 Connection structure of central air conditioning backwind tube
WO2018040441A1 (en) * 2016-08-30 2018-03-08 青岛海尔股份有限公司 Refrigerator-freezer
CN209389177U (en) * 2019-01-31 2019-09-13 安徽安凯汽车股份有限公司 A kind of pressure cold wind cooling system of integral new-energy passenger power battery cabin
CN209912670U (en) * 2019-05-09 2020-01-07 四川弗莱特电力设备有限公司 Combined exhaust fan for dry-type transformer
CN111129651A (en) * 2020-01-07 2020-05-08 盐城国投中科新能源科技有限公司 Battery box with high-efficient cooling structure

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11132623A (en) * 1997-10-30 1999-05-21 Nippon Light Metal Co Ltd Cooling unit and refrigerator using the same
CN202562170U (en) * 2012-03-06 2012-11-28 合肥美的荣事达电冰箱有限公司 Air duct outlet component for air cooling refrigerator
CN203518155U (en) * 2013-07-29 2014-04-02 北京康孚科技股份有限公司 Displacement-type uniform-air-supply air supply device for air conditioning equipment
CN206113241U (en) * 2016-08-12 2017-04-19 东莞市华科净化工程有限公司 Connection structure of central air conditioning backwind tube
WO2018040441A1 (en) * 2016-08-30 2018-03-08 青岛海尔股份有限公司 Refrigerator-freezer
CN209389177U (en) * 2019-01-31 2019-09-13 安徽安凯汽车股份有限公司 A kind of pressure cold wind cooling system of integral new-energy passenger power battery cabin
CN209912670U (en) * 2019-05-09 2020-01-07 四川弗莱特电力设备有限公司 Combined exhaust fan for dry-type transformer
CN111129651A (en) * 2020-01-07 2020-05-08 盐城国投中科新能源科技有限公司 Battery box with high-efficient cooling structure

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