CN102157715B - Battery pack - Google Patents
Battery pack Download PDFInfo
- Publication number
- CN102157715B CN102157715B CN201110063139.7A CN201110063139A CN102157715B CN 102157715 B CN102157715 B CN 102157715B CN 201110063139 A CN201110063139 A CN 201110063139A CN 102157715 B CN102157715 B CN 102157715B
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- China
- Prior art keywords
- battery core
- casing
- battery pack
- battery
- cooling fluid
- Prior art date
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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
Abstract
The invention discloses a kind of battery pack, it comprises casing, the battery core be contained in casing, be installed on casing and the cover plate of seal case and battery core, casing is provided with inlet and liquid outlet, casing outside is connected inlet and liquid outlet by heat abstractor, fluid reservoir with pump seal, formation can for the loop of liquid circulation, and battery core is dipped in cooling fluid.Battery core in battery pack of the present invention is directly dipped in cooling fluid, the thermal conductive resin of cooling fluid can keep the uniformity of each battery core temperature effectively, and the heat produced when battery core being worked is taken away in time, realize the dynamic adjustments of battery core temperature, battery core is worked in the temperature range of the best, thus improves the security performance of battery pack.
Description
Technical field
The present invention relates to a kind of battery pack, especially a kind of battery pack with Good Security.
Background technology
Increasingly serious due to environment and resources problem, new-energy automobile has become the main flow direction of future automobile industry development, and power battery pack is originated as the major impetus of new-energy automobile, has become core component and the key technology of electric automobile.
But in the course of the work, particularly in heavy-current discharge situation, temperature rise is rapid, not only can affect the life-span of battery core, and add the unsteadiness of battery pack, there is serious potential safety hazard if cannot carry out in time dispelling the heat for the battery core in power battery pack.
At present, the cooling of battery pack mainly adopts blower fan to carry out forced ventilation cooling, although forced ventilation cooling serves certain effect to the heat radiation of battery core, but be difficult to ensure the high efficiency of battery core heat radiation and the uniformity of battery core working temperature: blower fan carries out forced ventilation cooling and usually can not effectively cool the battery core in whole battery pack, local temperature can be caused higher, blower fan is adopted to carry out cooling and be also difficult to ensure the airtight of whole battery pack, dustproof and waterproof is difficult to ensure, therefore, the security performance to battery pack and the requirement in useful life cannot still be met.
In view of this, necessaryly a kind of battery pack with Good Security is provided.
Summary of the invention
The object of the invention is to: a kind of battery pack with Good Security is provided.
In order to realize foregoing invention object, the invention provides a kind of battery pack, it comprises casing, the battery core be contained in casing, to be installed on casing and the cover plate of seal case and battery core.Casing is provided with inlet and liquid outlet, and casing outside is connected inlet and liquid outlet by heat abstractor, fluid reservoir with pump seal, and being formed can for the loop of liquid circulation, and battery core is dipped in cooling fluid.
One as battery pack of the present invention is improved, the sidewall that described casing is provided with base plate and upwards extends from base plate, and base plate is provided with dividing plate spaced apart, and described battery core is contained between dividing plate or between dividing plate and the sidewall of casing.
One as battery pack of the present invention is improved, and described dividing plate comprises the support that base and cross section are " ten " font, and the bottom of described battery core is placed on base, and the gap bottom battery core and between base plate forms the horizontal run of cooling fluid.
One as battery pack of the present invention is improved, and described dividing plate comprises the support that base and cross section are " ten " font, and the gap between adjacent battery core or between battery core and the sidewall of casing forms the vertical run of cooling fluid.
One as battery pack of the present invention is improved, and described cover plate is provided with notch, and the top of described battery core is stretched out from notch, and sealant sealing is passed through in the junction of described battery core and notch.
One as battery pack of the present invention is improved, the sidewall that described casing is provided with base plate and upwards extends from base plate, and described inlet and liquid outlet are arranged on the sidewall of described casing, and inlet is positioned at the top of liquid outlet.
One as battery pack of the present invention is improved, and described cooling fluid has good thermal conductivity, mobility and insulating properties.
One as battery pack of the present invention is improved, and described cover plate is anchored on described casing by bolt seal.
Relative to prior art, battery pack of the present invention has the following advantages: battery core is directly dipped in cooling fluid, the good thermal conduction characteristic of cooling fluid can keep the uniformity of each battery core temperature effectively, and the heat produced when battery core being worked is taken away in time, realize the dynamic adjustments of battery core temperature, battery core is worked in the temperature range of the best, thus extend the useful life of battery core and reduce the risk of battery core generation thermal runaway, improve the security performance of battery pack, extend the useful life of battery pack.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, battery pack of the present invention and Advantageous Effects thereof are described in detail.
Fig. 1 is the schematic perspective view of battery pack of the present invention.
Fig. 2 is the schematic perspective view of the casing of battery pack of the present invention.
Fig. 3 is the schematic perspective view of the cover plate of battery pack of the present invention.
Fig. 4 is the cross-sectional schematic of battery pack of the present invention.
Embodiment
In order to make, goal of the invention of the present invention, technical scheme and Advantageous Effects are more clear to be understood, below in conjunction with the drawings and specific embodiments, is further elaborated to battery pack of the present invention.Should be understood that, the embodiment described in this specification is only used to explain the present invention, is not to limit the present invention.
Refer to shown in Fig. 1 to Fig. 4, battery pack of the present invention comprises casing 10, is contained in several battery cores 40 of in casing 10, is installed on casing 10 and the cover plate 20 of seal case 10 and battery core 40.Casing 10 is provided with inlet 116 and liquid outlet 118, the outside of casing 10 to be tightly connected inlet 116 and liquid outlet 118 by heat abstractor 30, fluid reservoir 50 and pump 60, to form the loop circulated for cooling fluid 70, the battery core 40 be contained in casing 10 is dipped in cooling fluid 70.
Refer to shown in Fig. 2, casing 10 is the hollow cuboid of top end opening, is be made up of nonmetallic materials.Four sidewalls 104 that casing 10 comprises base plate 102 and upwards extends from base plate 102, base plate 102 and four sidewalls 104 are enclosed to form the receiving space of accommodating battery core 40 jointly.
Base plate 102 is provided with several dividing plates 106 be intervally arranged, and adjacent dividing plate 106 or dividing plate 106 can accommodate battery core 40 with sidewall 104 jointly stabilizing.Dividing plate 106 is provided with the base 108 protruding from base plate 102 becomes " ten " font support 110 with the cross section upwards extended from base 108.When battery core 40 to be stably contained between adjacent separator 106 or between dividing plate 106 and sidewall 104 time, gap between the bottom of battery core 40 and base plate 102 forms horizontal run 112, and the gap between adjacent battery core 40 or the sidewall 104 of battery core 40 and casing 10 forms vertical run 114.
The two opposite side walls 104 of casing 10 is respectively equipped with inlet 116 and liquid outlet 118, cooling fluid 70 can enter in casing 10 from inlet 116, flow through the battery core 40 of collecting in casing 10 through horizontal run 112 and vertical run 114 and take away the heat produced when battery core 40 works, eventually passing liquid outlet 118 and flow to heat abstractor 30.In the shown embodiment, inlet 116 is positioned at the near top of sidewall 104, and liquid outlet 118 is positioned at sidewall 104 near base plate 102 place.
The corner, top of the sidewall 104 of casing 10 is provided with installing hole 120, and installing hole 120 is corresponding with the pilot hole 220 that cover plate 20 is offered, and when cover plate 20 is fastened on casing 10, installing hole 120 aligns respectively with pilot hole 220 and fastening by securing members such as bolts.In addition, in order to improve sealing, seal washer (not shown) can also between casing 10 and cover plate 20, be provided with.
Refer to shown in Fig. 3, the shape of cover plate 20 and the shape of casing 10 suitable, its central correspondence battery core 40 be contained in casing 10 is provided with notch 202 spaced apart, and the installing hole 120 on the corresponding casing 10 in its corner is provided with four pilot holes 220.After battery core 40 is contained in casing 10, cover plate 20 to be fastened on casing 10 and to be fastened by bolts, and the top of battery core 40 is stretched out from corresponding notch 202, and notch 202 passes through sealant sealing with the junction of battery core 40.
Shown in Fig. 1, heat abstractor 30 is positioned at outside casing 10, and for having the S shape structure of excellent heat dispersion performance, its one end and liquid outlet 118 are tightly connected, and the other end and fluid reservoir 50 are tightly connected.When cooling fluid 70 is after liquid outlet 118 flows out, under the driving of pump 60, enter heat abstractor 30, the heat produced when battery core 40 works in cooling fluid 70 can be passed through heat abstractor 30 and is disposed in external environment.
Fluid reservoir 50 is for storing cooling fluid 70, and the cooling fluid 70 that self-heat irradiation device 30 flows out enters fluid reservoir 50, and can flow out fluid reservoir 50 under the driving of pump 60.
Pump 60 is the power source of battery pack of the present invention, and when pump 60 starts, the cooling fluid 70 in fluid reservoir 50, under the driving of pump 60, enters casing 10 from inlet 116, enters heat abstractor 30, then come back to fluid reservoir 50 after cooling battery core 40 through liquid outlet 118.Circulation like this, can take away the heat produced when battery core 40 works, and reduces the temperature of battery core 40.
Cooling fluid 70 has good thermal conductivity, mobility and insulating properties, it can be transformer wet goods cooling agent, good thermal conductivity can keep the uniformity of each battery core 40 temperature, thus effectively reducing the risk that thermal runaway occurs battery core 40, good mobility can ensure to be defined as away the heat produced when battery core 40 works.
The assembling process of battery pack of the present invention is as follows: first, battery core 40 is stably contained in casing 40 successively, adjacent battery core 40 is isolated by dividing plate 106, gap between the bottom of battery core 40 and base plate 102 forms horizontal run 112, and the gap between the sidewall of adjacent battery core 40 or the sidewall 104 of battery core 40 and casing 10 forms vertical run 114; Secondly, cover plate 20 is fastened on casing 10, and by bolt by casing 10 and cover plate 20 fit sealing, the top of battery core 40 is stretched out from the corresponding notch 202 of cover plate 20, and notch 202 passes through sealant sealing with the junction at battery core 40 top; Finally, connect heat abstractor 30, fluid reservoir 50 and pump 60 according to the mode shown in Fig. 1 successively by sealing pipeline, form the loop that can circulate for cooling fluid 70.
The operation principle of battery pack of the present invention is as follows: when battery pack works, and start pump 60, the cooling fluid 70 in fluid reservoir 50 enters in casing 10 through the inlet 116 of casing 10; Battery core 40 is dipped in cooling fluid 70, and cooling fluid 70 flows through battery core 40 surface through horizontal run 112 and vertical run 114 and takes away the heat produced when battery core 40 works; The cooling fluid 70 of the heat produced when working with battery core 40 flows out casing 10 through liquid outlet 118 and enters heat abstractor 30, is again back to fluid reservoir 50, so circulates after distribute heat, constantly can take away the heat produced when battery core 40 works.
It should be noted that, the actual heat produced when working according to battery core 40, can regulate the flow velocity of cooling fluid 70 in the temperature of cooling fluid 70 in fluid reservoir 50 and whole battery pack, to ensure that battery core 40 works in the temperature range of the best.
In conjunction with above can find out the detailed description of the embodiment of battery pack of the present invention, relative to prior art, battery pack of the present invention has the following advantages: battery core 40 is directly dipped in cooling fluid 70, the good thermal conduction characteristic of cooling fluid 70 can keep the uniformity of each battery core 40 temperature effectively, and the heat produced when battery core 40 being worked is taken away in time, realize the dynamic adjustments of battery core 40 temperature, battery core 40 is worked in the temperature range of the best, thus extend the useful life of battery core 40 and reduce the risk that thermal runaway occurs battery core 40, improve the security performance of battery pack, extend the useful life of battery pack.
The announcement of book and instruction according to the above description, those skilled in the art in the invention can also carry out suitable change and amendment to above-mentioned execution mode.Therefore, the present invention is not limited to embodiment disclosed and described above, also should fall in the protection range of claim of the present invention modifications and changes more of the present invention.In addition, although employ some specific terms in this specification, these terms just for convenience of description, do not form any restriction to the present invention.
Claims (7)
1. a battery pack, it comprises casing, the battery core be contained in casing, be installed on casing and the cover plate of seal case and battery core, it is characterized in that: described casing is provided with inlet and liquid outlet, casing outside is connected inlet and liquid outlet by heat abstractor, fluid reservoir with pump seal, formation can for the loop of liquid circulation, and battery core is dipped in cooling fluid; Described cover plate is provided with notch, and the top of described battery core is stretched out from notch, and sealant sealing is passed through in the junction of battery core and notch.
2. battery pack according to claim 1, is characterized in that: the sidewall that described casing is provided with base plate and upwards extends from base plate, and base plate is provided with dividing plate spaced apart, and described battery core is contained between dividing plate or between dividing plate and the sidewall of casing.
3. battery pack according to claim 2, is characterized in that: described dividing plate comprises the support that base and cross section are " ten " font, and the bottom of described battery core is placed on base, and the gap bottom battery core and between base plate forms the horizontal run of cooling fluid.
4. battery pack according to claim 2, is characterized in that: described dividing plate comprises the support that base and cross section are " ten " font, and the gap between adjacent battery core or between battery core and the sidewall of casing forms the vertical run of cooling fluid.
5. battery pack according to claim 1, is characterized in that: the sidewall that described casing is provided with base plate and upwards extends from base plate, and described inlet and liquid outlet are arranged on the sidewall of described casing, and inlet is positioned at the top of liquid outlet.
6. battery pack according to claim 1, is characterized in that: described cooling fluid is transformer oil.
7. battery pack according to claim 1, is characterized in that: described cover plate is anchored on described casing by bolt seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110063139.7A CN102157715B (en) | 2011-03-16 | 2011-03-16 | Battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110063139.7A CN102157715B (en) | 2011-03-16 | 2011-03-16 | Battery pack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102157715A CN102157715A (en) | 2011-08-17 |
| CN102157715B true CN102157715B (en) | 2016-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110063139.7A Active CN102157715B (en) | 2011-03-16 | 2011-03-16 | Battery pack |
Country Status (1)
| Country | Link |
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| CN (1) | CN102157715B (en) |
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| CN102339963A (en) * | 2011-09-28 | 2012-02-01 | 重庆长安汽车股份有限公司 | Temperature-controllable power battery module group |
| CN102361107A (en) * | 2011-10-18 | 2012-02-22 | 中山普润斯电源设备技术有限公司 | Power battery pack |
| CN103474711A (en) * | 2012-06-08 | 2013-12-25 | 中国人民解放军63971部队 | Heat management system of power supply |
| CN102832424B (en) * | 2012-08-27 | 2015-04-22 | 华南理工大学 | Temperature control system for battery packs |
| DE102014106852A1 (en) * | 2014-05-15 | 2015-11-19 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | battery module |
| CN104124492A (en) * | 2014-07-24 | 2014-10-29 | 谢彦君 | Power battery heat management device and manufacturing method thereof |
| 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 |
| CN104300189A (en) * | 2014-11-07 | 2015-01-21 | 成都衔石科技有限公司 | Automobile battery cooling device |
| CN106848343A (en) * | 2014-12-08 | 2017-06-13 | 谢彦君 | The heat management device of electric heat generating components |
| CN107004914A (en) * | 2014-12-08 | 2017-08-01 | 谢彦君 | The heat management device of electric heat generating components |
| WO2016091133A1 (en) * | 2014-12-08 | 2016-06-16 | 宋正贤 | Heat management device of electro-heating component |
| CN109509932A (en) * | 2014-12-08 | 2019-03-22 | 谢彦君 | Battery thermal management |
| CN104900829B (en) * | 2015-06-03 | 2018-01-23 | 一汽-大众汽车有限公司 | A kind of constant-temperature battery bag |
| WO2017000301A1 (en) | 2015-07-02 | 2017-01-05 | 深圳市大疆创新科技有限公司 | Battery and housing structure thereof, method for protecting cell, and mobile device and kit thereof |
| CN106856231B (en) * | 2015-12-09 | 2019-09-17 | 宁德时代新能源科技股份有限公司 | Battery pack |
| CN106257739A (en) * | 2015-12-18 | 2016-12-28 | 上海卡耐新能源有限公司 | A kind of battery module and preparation method thereof |
| CN107293825A (en) * | 2016-03-31 | 2017-10-24 | 朱罗泉 | A kind of power battery module constant temperature system |
| CN106229582B (en) * | 2016-09-20 | 2019-05-24 | 常州普莱德新能源电池科技有限公司 | A kind of electric automobile power battery water cooling box |
| CN106505277A (en) * | 2016-11-15 | 2017-03-15 | 惠州市蓝微新源技术有限公司 | The cold battery modules of liquid |
| CN106711537A (en) * | 2016-11-16 | 2017-05-24 | 浙江超威创元实业有限公司 | Lithium battery with inside structure matched with heat pipe heat radiation mode |
| CN106972191A (en) * | 2016-12-01 | 2017-07-21 | 动能创科股份有限公司 | Lithium ion battery bag or battery modules, coolant and cooling means suitable for the lithium ion battery bag or battery modules |
| CN207021355U (en) * | 2017-05-16 | 2018-02-16 | 蔚来汽车有限公司 | Battery modules and electrokinetic cell system |
| CN107196014B (en) * | 2017-06-15 | 2023-04-28 | 成都大超科技有限公司 | Phase-change heat dissipation structure of lithium ion battery of electric automobile |
| DE102017215499A1 (en) * | 2017-09-04 | 2019-03-07 | Robert Bosch Gmbh | Battery cell with insulation layer |
| CN108183280B (en) * | 2017-12-22 | 2020-11-13 | 重庆金康新能源汽车有限公司 | Electric automobile power battery cooling device and cooling system thereof |
| CN108417931A (en) * | 2018-05-17 | 2018-08-17 | 华霆（合肥）动力技术有限公司 | Heat management device and heat management module |
| CN108705946A (en) * | 2018-05-25 | 2018-10-26 | 日照职业技术学院 | A kind of new-energy automobile power supply smart radiator and method |
| DE102018209887A1 (en) * | 2018-06-19 | 2019-12-19 | Robert Bosch Gmbh | Battery module with a plurality of battery cells |
| CN113937383B (en) * | 2020-06-29 | 2023-10-13 | 比亚迪股份有限公司 | Battery module, battery pack and vehicle |
| CN111929593A (en) * | 2020-09-10 | 2020-11-13 | 联动天翼新能源有限公司 | Infiltration type battery cell charging and discharging test device |
| DE102020124745A1 (en) * | 2020-09-23 | 2022-03-24 | Lisa Dräxlmaier GmbH | BATTERY MODULE HOUSING AND METHOD OF MAKING A BATTERY MODULE |
| CN114430082A (en) * | 2020-10-29 | 2022-05-03 | 中国电信股份有限公司 | Temperature control device and method for battery |
| CN114006103A (en) * | 2021-11-02 | 2022-02-01 | 上海兰钧新能源科技有限公司 | Immersed liquid cooling battery system |
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| Publication number | Publication date |
|---|---|
| CN102157715A (en) | 2011-08-17 |
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