CN103730705A - Super-capacity lithium ion battery pack with heat-transfer oil circulating radiating device - Google Patents
Super-capacity lithium ion battery pack with heat-transfer oil circulating radiating device Download PDFInfo
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- CN103730705A CN103730705A CN201310654331.2A CN201310654331A CN103730705A CN 103730705 A CN103730705 A CN 103730705A CN 201310654331 A CN201310654331 A CN 201310654331A CN 103730705 A CN103730705 A CN 103730705A
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- battery pack
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
A super-capacity lithium ion battery pack with a heat-transfer oil circulating radiating device mainly comprises a battery pack box body, a radiating pipe, a fin, lithium ion batteries and an oil conservator, wherein the battery pack box body adopts a full-oil charge seal type structure; the metal bellows expansion oil conservator is arranged at the top of the box body and is communicated with the battery pack box body through a guide pipe; clamping grooves are uniformly, internally and correspondingly formed in the top and bottom of the battery pack box body; each lithium ion battery is clamped between the clamping grooves which correspond up and down to keep vertical and stable; the fin is connected with the periphery of the battery pack box body; the connectors of the radiating pipe are respectively arranged at the upper and the lower end of the fin and communicated with the battery pack box body; under the heating, the heat-transfer oil forms a natural circulation convection in the battery pack box body. The lithium ion battery pack has a simple structure; the heat-transfer oil can serve as not only a cooling medium, but also an insulator, can continuously flow in the closed battery pack box body and the radiating pipe, without being corroded by moisture, is high in radiating, and can ensure the normal working of the super-capacity lithium ion battery pack.
Description
Technical field
The present invention relates to a kind of vast capacity lithium ion battery group with conduction oil circulation heat radiator, belong to technical field of new energies.
Background technology
High capacity lithium ion battery group is on probation in electric automobile, will become one of major impetus power supply of 21 century electric automobile, and will aspect artificial satellite, Aero-Space and energy storage, be applied.
The charging and discharging capabilities of lithium ion battery and temperature have close contacting, but understand in lithium ion battery charge and discharge process, produce a large amount of heat, the useful life that affect the efficiency for charge-discharge of battery, reduction battery and the fail safe that destroys its use are understood in distributing not in time of heat.In order to improve the performance of battery pack, when excess Temperature, need carry out battery pack effectively coolingly, battery pack can normally be worked.
The heat radiation of high capacity lithium ion battery group in prior art, main by force ventilated mode, take away the heat of battery surface, but because the quantity of heat production of vast capacity lithium ion battery group is large, forced ventilation radiating effect is undesirable, and the intensive local heat of battery case internal battery sheet is not easy to distribute in time, causes thus the efficiency for charge-discharge of battery low, reduce the useful life of battery, and the fail safe of impact use.
Summary of the invention
The invention discloses a kind of vast capacity lithium ion battery group with conduction oil circulation heat radiator, lithium ion battery group is put in complete oil-filled sealing cell group casing, when ambient temperature raises, the heat that utilizes circulating of conduction oil to produce while taking away battery charging and discharging; When ambient temperature is too low, by heating conduction oil, provide ambient temperature, to guarantee the normal work of battery pack, conduction oil has not only been realized the effective adjusting to temperature of lithium ion battery group, also played insulating effect, the drawbacks such as effectively overcome existing forced ventilation radiating mode and caused heat to be difficult for distributing, battery efficiency is low, and dangerous and useful life is poor.
Technical solution of the present invention is achieved in that
With a vast capacity lithium ion battery group for conduction oil circulation heat radiator, mainly comprise battery case body, radiating tube, fin, lithium ion battery, oil conservator; Described battery case body is complete oil-filled sealed structure, and casing top arranges a metal bellow expansion oil storage tank, by a conduit, is communicated with battery case body; Battery case body inner top and inner bottom part correspondence position evenly arrange draw-in groove, and each lithium ion battery is placed in respectively in the draw-in groove of upper and lower corresponding, to keep vertical stable; Battery pack box surrounding welding rectangle fin, increases area of dissipation, improves radiating effect; , radiating tube is welded in around battery pack box, the interface of radiating tube lays respectively at fin upper and lower side meanwhile, and radiating tube is communicated with battery case body (1); Be subject under heat effect, conduction oil forms natural circulation convection current at Battery case with in the radiating tube being communicated with it.
Described oil conservator causes oily volumetric expansion or dwindles for compensating because oil temperature changes; Fin and radiating tube have increased the contact area of the interior conduction oil of case and outside air, thereby have strengthened heat-conducting effect.
Lithium ion battery group is put in complete oil-filled sealing cell group casing, when ambient temperature raises, utilizes the heat producing while taking away battery charging and discharging that circulates of the interior conduction oil of battery case body, by fin and outside, connect radiating tube heat radiation; When ambient temperature is too low, by heating conduction oil, improve ambient temperature, to guarantee the normal work of lithium ion battery group.The conduction oil being present between lithium ion battery has not only been realized the effective adjusting to temperature of lithium ion battery group, has also played insulating effect.
Oil mobile in described lithium ion battery group is both as coolant, again as dielectric.Wavy metal expansion type oil-storage cabinet can effectively protect oil system from outside air, not absorb moisture, can not make in oil micro-water content increase, thus the electrical characteristic of insulation system can not change, thereby can guarantee the safe and reliable operation of battery pack.Meanwhile, because oil can not degenerate, to oil system, also can safeguard less or non-maintaining.
Advantage of the present invention and good effect are as follows:
1, simple in structure, between battery module, do not need good, the nonflammable insulating frame of installing insulating performance, the conduction oil being full of has therebetween played good insulating effect;
2, the conduction oil in case has the dielectric strength more much higher than air.Insulating material is immersed in oil, not only can improve dielectric strength, but also can avoid the erosion of moisture;
3, the specific heat of conduction oil is large, and the heat producing during battery pack operation makes to rise near the conduction oil expanded by heating of battery, and heat is taken away by the mobile of oil, by fin and radiating tube, sheds, and rapid heat dissipation, normally moves with the lithium ion battery group that guarantees vast capacity;
4, extinguishing arc effect: during impulse electricity, contact goes out to produce electric arc.Due to oily good heat conductivity, and can decompose a large amount of gas under the high temperature action of electric arc, produce larger pressure, thereby improve the arc extinction performance of medium, electric arc is extinguished very soon.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of oil immersed type battery pack;
Fig. 2 is oil immersed type battery pack side TV structure schematic diagram;
Fig. 3 is the interior conduction oil flow process figure of the radiating tube of battery pack box and connection with it.
1, battery case body, 2. radiating tube, 3. fin, 4. lithium ion battery group, 5. oil conservator.
In Fig. 3, arrow represents that conduction oil is at battery case body and flow direction in the radiating tube being communicated with.
Embodiment
Below in conjunction with drawings and Examples, the technology of the present invention content is described in further detail, but embodiment is not limited to the present invention, every employing similarity method of the present invention and similar variation thereof, all should list protection scope of the present invention in.
With a vast capacity lithium ion battery group for conduction oil circulation heat radiator, as shown in Figure 1 and Figure 2, mainly comprise battery case body 1, radiating tube 2, fin 3, lithium ion battery 4, oil conservator 5; At battery case body 1, be complete oil-filled sealed structure, casing top arranges a metal bellow expansion oil storage tank 5, by a conduit, is communicated with battery case body 1; Battery case body 1 inner top and inner bottom part correspondence position evenly arrange draw-in groove, and each lithium ion battery is placed in respectively in the draw-in groove of upper and lower corresponding, to keep vertical stable; Battery case body 1 surrounding welding rectangle fin 3, increases area of dissipation, improves radiating effect; , radiating tube 2 is welded in around battery pack box, the interface of radiating tube lays respectively at fin 3 upper and lower sides meanwhile, and radiating tube is communicated with battery case body 1; Be subject under heat effect, conduction oil forms natural circulation convection current at Battery case with in the radiating tube being communicated with it.
When the heat of inside lithium ion cell is delivered to behind its surface, there is certain temperature difference in its surface temperature and conduction oil, due to the effect of convection current and radiation, and near conduction oil heat will pass to, thus make oil temperature increase gradually.After near insulating oil temperature battery raises, deep fat flow velocity increases, high temperature oil extruding around conduction oil is upwards flowed and is contacted with the inwall of battery case body 1, after transmitting portions heat, to surrounding cabinet wall and radiating tube, flow downward respectively again, after transmitting a part of heat, oil temperature is reduced, the vacancy of cold oil filled high-temperature oil, thereby at the inner circulation circuit that forms of battery pack.
Conduction oil flowing as shown in Figure 3 in battery pack box: flow from bottom to top at battery surface according to direction of arrow conduction oil, when conduction oil flows to top area, flowed to surrounding inwall by centre; In inner wall area, conduction oil is realized from top to bottom and to be flowed by radiating tube, like this at circulation circuit of the interior formation of battery case body 1, continue lithium ion battery group to carry out cooling in real time, to guarantee that lithium ion battery group works under an optimum ambient temperature.
Claims (1)
1. the vast capacity lithium ion battery group with conduction oil circulation heat radiator, mainly comprises battery case body (1), radiating tube (2), fin (3), lithium ion battery (4), oil conservator (5); It is characterized in that: described battery case body (1) is complete oil-filled sealed structure, and casing top arranges a metal bellow expansion oil storage tank (5), by a conduit, is communicated with battery case body (1); Battery case body (1) inner top and inner bottom part correspondence position evenly arrange draw-in groove, and each lithium ion battery is placed in respectively in the draw-in groove of upper and lower corresponding, to keep vertical stable; Battery case body (1) surrounding connects rectangle fin (3), radiating tube (2) is arranged on battery case body (1) surrounding, the interface of radiating tube lays respectively at fin (3) upper and lower end, and radiating tube (2) is communicated with battery case body (1); Be subject under heat effect, conduction oil forms natural circulation convection current at Battery case with in the radiating tube being communicated with it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310654331.2A CN103730705A (en) | 2013-12-05 | 2013-12-05 | Super-capacity lithium ion battery pack with heat-transfer oil circulating radiating device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310654331.2A CN103730705A (en) | 2013-12-05 | 2013-12-05 | Super-capacity lithium ion battery pack with heat-transfer oil circulating radiating device |
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| CN103730705A true CN103730705A (en) | 2014-04-16 |
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| CN201310654331.2A Pending CN103730705A (en) | 2013-12-05 | 2013-12-05 | Super-capacity lithium ion battery pack with heat-transfer oil circulating radiating device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104362409A (en) * | 2014-09-17 | 2015-02-18 | 哈尔滨工业大学（威海） | Oil bath-based natural circulation and heat pipe-coupled battery pack thermal management system |
| CN104538692A (en) * | 2014-12-06 | 2015-04-22 | 苏州欣航微电子有限公司 | Cooling pressure-sensitive storage battery |
| CN105826633A (en) * | 2016-05-26 | 2016-08-03 | 苏州宇量电池有限公司 | Battery system high in safety |
| CN105932187A (en) * | 2016-05-31 | 2016-09-07 | 三门峡博睿化工技术研发有限公司 | Quick charge type electric vehicle battery system |
| CN106159379A (en) * | 2016-08-31 | 2016-11-23 | 杭州捷能科技有限公司 | The chiller of a kind of electrokinetic cell system heat pipe fin and mode selecting method |
| CN112888266A (en) * | 2021-02-04 | 2021-06-01 | 陈元友 | Heat dissipation anti-interference electric apparatus instrument |
| CN116222265A (en) * | 2023-03-20 | 2023-06-06 | 山东亿科化学有限责任公司 | Closed circulation radiator for oil refining chemical industry |
| CN116826233A (en) * | 2023-06-05 | 2023-09-29 | 深圳市安仕新能源科技有限公司 | energy storage device |
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| JP2000260474A (en) * | 1999-03-05 | 2000-09-22 | Hitachi Ltd | Lithium secondary battery |
| CN101542825A (en) * | 2007-02-01 | 2009-09-23 | 丰田自动车株式会社 | Power supply device |
| CN201402851Y (en) * | 2009-04-09 | 2010-02-10 | 高宾 | Vehicular lithium power battery pack cooling device |
| CN201927684U (en) * | 2010-12-28 | 2011-08-10 | 上海唐一新能源科技有限公司 | Liquid-cooled modular structure for lithium-ion power battery pack |
| CN103178314A (en) * | 2013-02-28 | 2013-06-26 | 广东工业大学 | Battery heat management equipment with efficient balanced radiating function and electric heating function |
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2013
- 2013-12-05 CN CN201310654331.2A patent/CN103730705A/en active Pending
Patent Citations (5)
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| JP2000260474A (en) * | 1999-03-05 | 2000-09-22 | Hitachi Ltd | Lithium secondary battery |
| CN101542825A (en) * | 2007-02-01 | 2009-09-23 | 丰田自动车株式会社 | Power supply device |
| CN201402851Y (en) * | 2009-04-09 | 2010-02-10 | 高宾 | Vehicular lithium power battery pack cooling device |
| CN201927684U (en) * | 2010-12-28 | 2011-08-10 | 上海唐一新能源科技有限公司 | Liquid-cooled modular structure for lithium-ion power battery pack |
| CN103178314A (en) * | 2013-02-28 | 2013-06-26 | 广东工业大学 | Battery heat management equipment with efficient balanced radiating function and electric heating function |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104362409A (en) * | 2014-09-17 | 2015-02-18 | 哈尔滨工业大学（威海） | Oil bath-based natural circulation and heat pipe-coupled battery pack thermal management system |
| CN104538692A (en) * | 2014-12-06 | 2015-04-22 | 苏州欣航微电子有限公司 | Cooling pressure-sensitive storage battery |
| CN105826633A (en) * | 2016-05-26 | 2016-08-03 | 苏州宇量电池有限公司 | Battery system high in safety |
| CN105932187A (en) * | 2016-05-31 | 2016-09-07 | 三门峡博睿化工技术研发有限公司 | Quick charge type electric vehicle battery system |
| CN105932187B (en) * | 2016-05-31 | 2019-05-10 | 三门峡博睿化工技术研发有限公司 | A kind of electric vehicle battery system of quickly-chargeable |
| CN106159379A (en) * | 2016-08-31 | 2016-11-23 | 杭州捷能科技有限公司 | The chiller of a kind of electrokinetic cell system heat pipe fin and mode selecting method |
| CN106159379B (en) * | 2016-08-31 | 2018-11-06 | 杭州捷能科技有限公司 | A kind of cooling device and mode selecting method of electrokinetic cell system heat pipe fin |
| CN112888266A (en) * | 2021-02-04 | 2021-06-01 | 陈元友 | Heat dissipation anti-interference electric apparatus instrument |
| CN116222265A (en) * | 2023-03-20 | 2023-06-06 | 山东亿科化学有限责任公司 | Closed circulation radiator for oil refining chemical industry |
| CN116222265B (en) * | 2023-03-20 | 2023-09-05 | 山东亿科化学有限责任公司 | Closed circulation radiator for oil refining chemical industry |
| CN116826233A (en) * | 2023-06-05 | 2023-09-29 | 深圳市安仕新能源科技有限公司 | energy storage device |
| CN116826233B (en) * | 2023-06-05 | 2024-05-17 | 深圳市安仕新能源科技有限公司 | Energy storage device |
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Application publication date: 20140416 |