CN104767005A - Battery pack with liquid-cooling cooling device - Google Patents

Battery pack with liquid-cooling cooling device Download PDF

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Publication number
CN104767005A
CN104767005A CN201510206303.3A CN201510206303A CN104767005A CN 104767005 A CN104767005 A CN 104767005A CN 201510206303 A CN201510206303 A CN 201510206303A CN 104767005 A CN104767005 A CN 104767005A
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CN
China
Prior art keywords
battery pack
cooling
battery
liquid
circulating
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
CN201510206303.3A
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Chinese (zh)
Inventor
胡谆人
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.)
Roc Energy Science Co Ltd Of Huizhou City Hundred Million
Original Assignee
Roc Energy Science Co Ltd Of Huizhou City Hundred Million
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 Roc Energy Science Co Ltd Of Huizhou City Hundred Million filed Critical Roc Energy Science Co Ltd Of Huizhou City Hundred Million
Priority to CN201510206303.3A priority Critical patent/CN104767005A/en
Publication of CN104767005A publication Critical patent/CN104767005A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30Arrangements for facilitating escape of gases
    • 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

Abstract

The invention provides a battery pack with a liquid-cooling cooling device. The battery pack comprises a battery pack box body bearing a battery module, a circulating pump providing circulating power, the cooling device providing heat energy or cooling for circulating, a detector and a circulating pipe. The battery pack box body, the circulating pump, the cooling device and the detector are communicated in a sealed and circulating mode through the circulating pipe. The temperature of circulating circulation liquid is raised or lowered through the cooling device, and therefore the temperature of the battery module in the battery pack box body is kept stable, and the safety performance of the battery pack is improved.

Description

A kind of battery pack with liquid-cooling heat radiator
Technical field
The present invention relates to energy field, particularly relate to a kind of battery pack with liquid-cooling heat radiator.
Background technology
Increasingly serious along with the energy and environmental problem, electric automobile progressively substitutes traditional power automobile, and electric automobile has become a large branch of automobile industry at present.Lithium-ion-power cell, because of the advantage such as high rate performance, long-life, safety of its excellence, has become the first battery of current electric automobile, has obtained the accreditation of whole industry.
Electrokinetic cell plays the part of a stored energy person on electric automobile, is stored in battery by unnecessary energy the etc. when energy in electrical network, vehicle brake, is released by the energy in battery in motion, the needs run to provide car load.In the use of lithium-ion-power cell, the temperature difference of important is battery with two side terminals, environment for use, connect internal resistance difference etc., and wherein, the temperature difference opposite sex having the greatest impact to lithium-ion-power cell, in general, the best serviceability temperature of lithium-ion-power cell is between 20 DEG C ~ 45 DEG C, but due to the running environment more complicated of car load, low temperature may to subzero 20 DEG C, and high temperature may to 55 DEG C, and temperature is very unstable.
Its essence of its discharge and recharge of lithium ion battery is exactly chemical reaction, store in the reaction or release electric energy, owing to not being single reaction in the reaction of inside lithium ion cell, it also has a lot of side reaction, these reactions can produce a large amount of hydride, chloride, fluoride, the materials such as hydro carbons, these materials exist in the majority with gaseous state, these gases can cause cell internal pressure to raise, there is the problems such as battery flatulence, cycle performance and the security performance of battery can be had a strong impact on, and when inside battery voltage is more than 1 boundary's point, gas can break through battery case, cause the leakage of imflammable gas or liquid, battery pack is very easily caused to burn, even probably to blast phenomenon.
Summary of the invention
The object of the invention is to the defect overcoming prior art, provide a kind of battery pack with liquid-cooling heat radiator, there is temperature consistency good, the feature that security performance is high.
The present invention is achieved in that a kind of battery pack with liquid-cooling heat radiator, and it comprises:
The radiator, detector and the circulation pipe that carrying the battery case body of battery module, provide the circulating pump of circulation power, providing heat energy or cooling for circulating, described battery case body, circulating pump, radiator and detector are communicated with by circulation pipe sealing circulation.
Further, described detector comprises one or more in gas sensing transducer, temperature sensor and pressure sensor.
Further, also comprise splitter and filter, described separator is communicated with circulation pipe by a three-way pipe, and described separator is communicated with described filter, described filter and circulation pipe ft connection.
Further, described battery case body is provided with relief valve.
Beneficial effect provided by the invention is: make the circulation fluid of circulation improve temperature or reduce temperature by radiator, the temperature making the battery module in battery case body keep stable, improves the security performance of battery pack.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation with the battery pack of liquid-cooling heat radiator of the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, a kind of battery pack with liquid-cooling heat radiator of the embodiment of the present invention comprises:
Battery case body 10, circulating pump 20, radiator 30, detector 50, separator 60, filter 70, circulation pipe 40, battery case body 10, circulating pump 20, radiator 30 seal circulation with detector 50 by circulation pipe 40 and are communicated with, circulation pipe 40 is communicated with separator 60, filter 70 successively by a three-way pipe, the ft connection of filter 70 and circulation pipe 40, between circulation pipe 40 and each assembly, circular flow is connected with circulation fluid.Specifically, in battery case body 10, be provided with battery module, detection module, after battery case body 10 seal group installs into, battery case body 10 inside vacuumized, the inner nitrogen injection of battery case body 10.The flowing that circulating pump 20 is circulation fluid provides power, when in battery case body 10, temperature is too high, circulation fluid flows through radiator 30 in circulation pipe 40, radiator 30 makes circulation fluid reduce temperature, circulation fluid flows in battery case body 10, take away in battery case body 10 and the heat of battery, battery is lowered the temperature, otherwise, when in battery case body 10, temperature is too low, 30, radiator improves the temperature of circulation fluid, and battery case body 10 is heated up, with this repetitive cycling, ensure (in the 5 DEG C) fluctuation in a less temperature range of battery in battery case body 10.The temperature making the battery module in battery case body 10 keep stable, improves the security performance of battery pack
Battery case body 10 is provided with relief valve (not shown), relief valve is unidirectional valve, when battery case body 10 internal pressure is excessive, and can by pressure inner excessive for battery case body 10 to discharging, because relief valve is unidirectional, can prevent extraneous air from entering box house.The degree of protection of casing is IP67.
Circulating pump 20 provides the power of circulation for circulation fluid, and circulating pump 20 is responsible for control by battery management system, when battery pack system internal temperature in allowed limits, circulating pump 20 does not work, and circulation fluid remains static in the entire system; When battery pack system internal temperature has exceeded 1 boundary's point, battery management system controlled circulation pump 20 works.
Radiator 30 is responsible for the effect that circulation fluid provides heating or cooling, and when battery pack temperature is too low, radiator 30 provides heat effect for circulation fluid; When battery pack system temperature is too high, radiator 30 provides thermolysis for circulation fluid.
Detector 50 comprises gas sensing transducer, temperature sensor and pressure sensor, wherein gas sensing transducer can be one or several in the transducers such as fluoride transducer, chloride transducer, hydrocarbonylation thing transducer, carbon dioxide sensor, hydride transducer, self-induction type pressure sensor, temperature sensor, for induced cell discharge in chemical reaction a large amount of hydride, chloride, fluoride, hydrocarbons.
Whether the temperature sensor in detector 50 temperature of the circulation fluid of perception after radiator 30 can meet the requirement of battery pack system; The pressure of pressure sensor energy perception whole battery case body 10 inside, if pressure raises suddenly or reduces, pressure data can be fed back to battery management system by detector 50.
Separator 60 can be separated to be separated the impurity in circulation fluid, gas from circulation fluid, the circulation fluid being separated impurity and gas is sent back to again in battery case body 10 cyclic process, ensure the reliability in wherein circulation fluid and battery case body 10 and fail safe, it is worth mentioning that, the separate mode of separator 60 comprises physical separation and Chemical Decomposition two kinds.
After gas is separated by separator 60 from circulation fluid, isolated gas is through filter 70, dangerous substance, poisonous and harmful substance, combustible material etc. are stored in filter 70 by filter 70, innocuous gas (conventional gas) is disposed in air, avoid the poisonous and harmful substance in gas to be directly disposed in air, so that human body and environment are impacted.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (4)

1. there is a battery pack for liquid-cooling heat radiator, it is characterized in that, comprising:
The radiator, detector and the circulation pipe that carrying the battery case body of battery module, provide the circulating pump of circulation power, providing heat energy or cooling for circulating, described battery case body, circulating pump, radiator and detector are communicated with by circulation pipe sealing circulation.
2. a kind of battery pack with liquid-cooling heat radiator as claimed in claim 1, is characterized in that: described detector comprise in gas sensing transducer, temperature sensor and pressure sensor one or more.
3. a kind of battery pack with liquid-cooling heat radiator as claimed in claim 1, it is characterized in that: also comprise splitter and filter, described separator is communicated with circulation pipe by a three-way pipe, and described separator is communicated with described filter, described filter and circulation pipe ft connection.
4. a kind of battery pack with liquid-cooling heat radiator as claimed in claim 1, is characterized in that: described battery case body is provided with relief valve.
CN201510206303.3A 2015-04-25 2015-04-25 Battery pack with liquid-cooling cooling device Pending CN104767005A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510206303.3A CN104767005A (en) 2015-04-25 2015-04-25 Battery pack with liquid-cooling cooling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510206303.3A CN104767005A (en) 2015-04-25 2015-04-25 Battery pack with liquid-cooling cooling device

Publications (1)

Publication Number Publication Date
CN104767005A true CN104767005A (en) 2015-07-08

Family

ID=53648716

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510206303.3A Pending CN104767005A (en) 2015-04-25 2015-04-25 Battery pack with liquid-cooling cooling device

Country Status (1)

Country Link
CN (1) CN104767005A (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4075984A (en) * 1976-02-13 1978-02-28 Caterpillar Tractor Co. Gas-liquid separators
CN1813370A (en) * 2003-07-30 2006-08-02 丰田自动车株式会社 Fuel cell cooling system and method for controlling circulation of cooling liquid in fuel cell
CN101663777A (en) * 2007-04-26 2010-03-03 丰田自动车株式会社 accumulator
CN101734133A (en) * 2008-11-05 2010-06-16 新奥科技发展有限公司 Heating temperature-control system for power battery
CN101894987A (en) * 2010-07-14 2010-11-24 李辉 Power lithium battery temperature control device
CN201946715U (en) * 2010-07-26 2011-08-24 深圳世纪新能源电池有限公司 Temperature-controlling circulating water system of power lithium ion battery box
CN103208656A (en) * 2012-01-16 2013-07-17 微宏动力系统(湖州)有限公司 Battery pack system and leakage detection method
CN203377354U (en) * 2013-07-22 2014-01-01 崔嵬 Liquid flow type temperature control device of electric vehicle lithium battery pack
CN103943909A (en) * 2013-01-17 2014-07-23 微宏动力系统(湖州)有限公司 Battery pack system
CN104315782A (en) * 2014-10-17 2015-01-28 武昌船舶重工集团有限公司 Cooling liquid system for degassing

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4075984A (en) * 1976-02-13 1978-02-28 Caterpillar Tractor Co. Gas-liquid separators
CN1813370A (en) * 2003-07-30 2006-08-02 丰田自动车株式会社 Fuel cell cooling system and method for controlling circulation of cooling liquid in fuel cell
CN101663777A (en) * 2007-04-26 2010-03-03 丰田自动车株式会社 accumulator
CN101734133A (en) * 2008-11-05 2010-06-16 新奥科技发展有限公司 Heating temperature-control system for power battery
CN101894987A (en) * 2010-07-14 2010-11-24 李辉 Power lithium battery temperature control device
CN201946715U (en) * 2010-07-26 2011-08-24 深圳世纪新能源电池有限公司 Temperature-controlling circulating water system of power lithium ion battery box
CN103208656A (en) * 2012-01-16 2013-07-17 微宏动力系统(湖州)有限公司 Battery pack system and leakage detection method
CN103943909A (en) * 2013-01-17 2014-07-23 微宏动力系统(湖州)有限公司 Battery pack system
CN203377354U (en) * 2013-07-22 2014-01-01 崔嵬 Liquid flow type temperature control device of electric vehicle lithium battery pack
CN104315782A (en) * 2014-10-17 2015-01-28 武昌船舶重工集团有限公司 Cooling liquid system for degassing

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Application publication date: 20150708

RJ01 Rejection of invention patent application after publication