CN103474712A - Sealed water cooling plate structure used on lithium battery module - Google Patents

Sealed water cooling plate structure used on lithium battery module Download PDF

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Publication number
CN103474712A
CN103474712A CN2012102022152A CN201210202215A CN103474712A CN 103474712 A CN103474712 A CN 103474712A CN 2012102022152 A CN2012102022152 A CN 2012102022152A CN 201210202215 A CN201210202215 A CN 201210202215A CN 103474712 A CN103474712 A CN 103474712A
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CN
China
Prior art keywords
water cooling
lithium battery
battery module
water
plate structure
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Granted
Application number
CN2012102022152A
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Chinese (zh)
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CN103474712B (en
Inventor
支红俊
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Yongkang Juxiang Vehicle Co., Ltd.
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支红俊
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Priority to CN201210202215.2A priority Critical patent/CN103474712B/en
Publication of CN103474712A publication Critical patent/CN103474712A/en
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Publication of CN103474712B publication Critical patent/CN103474712B/en
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    • 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 relates to a sealed water cooling plate structure used on a lithium battery module. The sealed water cooling plate structure comprises an aluminum plate and an aluminum cover plate which are welded together, the aluminum plate is die-casted with a water cooling channel, an inlet end and an outlet end of the water cooling channel are respectively plugged with a rotatable water cooling joint, a circumferential wall of a plugging portion of the rotatable water cooling joint is embedded with at least one radial sealing ring, the radial sealing ring is in seal cooperation with a hole wall of the water cooling channel, the outside of the plugging portion of the rotatable water cooling joint is embedded with an axial limiting pressing sheet, and the axial limiting press sheet is locked on the aluminum plate or the aluminum cover plate through a screw. The sealed water cooling plate structure can guarantee no current leakage, realizes the flexible rotation of the water cooling joint in a 360DEG range, guarantees the flexibility of a water connecting position, avoids water leakage caused by rotation, improves the heat dissipating effect of the lithium battery module, and is in favor of the assembling and fixing of a water cooling plate.

Description

A kind of sealing cooled plate structure be applied on lithium battery module
Technical field:
The present invention relates to a kind of sealing cooled plate structure be applied on lithium battery module, belong to the power battery technology field.
Background technology:
Current high-energy, most of supporting pure electric automobile, plug-in hybrid-power automobile, pure electric bus and the plug-in hybrid big bus given of high power type lithium battery module use.Because the electric discharge of large electric current makes lithium battery module produce a large amount of heats, if get rid of not in time performance, life-span and the safety that will have a strong impact on battery.Therefore current most of lithium battery module has all adopted the radiating mode of air-cooled or liquid cooling to be dispelled the heat.And air-cooled because the needed Duct design of forced convection is larger to the cabinet space requirement of lithium battery module, therefore adopt the liquid cooling mode, be to generally believe in the industry at present radiating effect the best way.Because cooling fluid commonly used belongs to conductive materials, if exist on circulation canal to leak, will produce serious security incident.Once, and cooled plate is loaded onto battery module, shell is metal aluminum sheet, therefore must guarantee that its casing insulation intensity is enough in order to avoid get an electric shock.Another for guaranteeing that every lithium battery can be dispelled the heat uniformly, need to control the flow that liquid that every lithium battery is flow through is consistent, the modes in existing many employings water route in parallel.Spatial limitation due to the lithium battery module casing, the position that battery module is placed in case is not quite similar, all smooth and easy for guaranteeing that every lithium battery connects the mode in water route, need watercooling elbow can be in 360 ° of scopes flexible rotating, and existing watercooling elbow generally adopts the structure be threaded with axial seal, cause to watercooling elbow when making adjustment, the axial sealing ring of watercooling elbow end there will be pine to join, and causes the bad phenomenon such as leak.
Summary of the invention:
The object of the invention is to overcome the deficiency of above-mentioned prior art, a kind of sealing cooled plate structure of improved lithium battery module is provided, it both can guarantee that electric current did not leak, can make again water-cooling joint flexible rotating in 360 ° of scopes, and can not reveal because rotation produces water, also can improve the radiating effect of lithium battery module, and be conducive to the assembling of cooled plate and fix.
In order to realize the foregoing invention purpose, the present invention has adopted following technical scheme:
A kind of sealing cooled plate structure be applied on lithium battery module, comprise the aluminium sheet and the Aluminum cover that weld together, on described aluminium sheet, die casting has water-cooling channel, the entrance point of described water-cooling channel and the port of export are plugged with respectively rotatable water-cooled joint, be embedded with at least one radial direction seal ring on the perisporium of the Plug Division of described rotatable water-cooled joint, the hole wall of this radial direction seal ring and water-cooling channel is sealed and matched, the outside of the Plug Division of described rotatable water-cooled joint is embedded with an axial limiting compressing tablet, this axial limiting compressing tablet by screw locking on aluminium sheet or Aluminum cover.
Described radial direction seal ring is provided with two, its axial distribution of Plug Division along rotatable water-cooled joint.
Described aluminium sheet and Aluminum cover be in when welding, is that the outer side edges around described water-cooling channel connects along whole lap welding, after welding fabrication, in the outside of water-cooling channel, forms a Sealing shield ring.
The outer surface of described aluminium sheet or Aluminum cover three of the upper, middle and lower heat conductive silica gel that has been sticked, wherein in the middle of the width of a heat conductive silica gel be greater than the width of upper and lower two heat conductive silica gels, be provided with structure glue between described two adjacent heat conductive silica gels.
The center line of the heat conductive silica gel in described centre is positioned at the location on the upper side of the center line of described aluminium sheet or Aluminum cover.
The width of described upper and lower two heat conductive silica gels is equal, and its width ratio with a middle heat conductive silica gel is: 2/5~3/5.
Described three heat conductive silica gels and structure glue adopt the uniform thickness design.
The present invention has following advantage with respect to prior art:
1, water-cooling joint adopt to be pegged graft and the structure of radial seal, both can make joint rotate in 360 ° of scopes, and the flexibility of assurance water receiving position can be stopped again radial direction seal ring and be occurred that pine joins, and avoids the generation of bad phenomenon such as leaking.
2, the welded cooled plate of hermetically sealed die casting, can further improve waterproof and reveal property, and can bear higher hydraulic pressure and reach 0.6Mpa.
3, the heat conductive silica gel that aluminium sheet or Aluminum cover surface are sticked, can make between cooled plate and lithium battery module to form gapless surface contact structure, avoids because of some contact or the contactless thermal chocking existed, and then improve the radiating effect of lithium battery module.
4, the heat conductive silica gel that aluminium sheet or Aluminum cover surface are sticked, can also avoid the leakage of current of lithium battery module on cooled plate, thereby guarantee the fail safe of using.And be sticked in the structure glue on aluminium sheet or Aluminum cover surface, can facilitate the assembling of cooled plate with fixing.
The accompanying drawing explanation:
The structural representation that Fig. 1 is cooled plate of the present invention.
The plan structure schematic diagram that Fig. 2 is Fig. 1.
The cross-sectional schematic that Fig. 3 is A-A direction in Fig. 2.
Embodiment:
Referring to Fig. 1, Fig. 2 and Fig. 3, the described a kind of sealing cooled plate structure be applied on lithium battery module of the embodiment of the present invention, comprise the aluminium sheet 1 and the Aluminum cover 2 that weld together, on aluminium sheet 1, die casting has water-cooling channel 3, the entrance point of water-cooling channel 3 and the port of export are plugged with respectively rotatable water-cooled joint 4, be embedded with two radial direction seal rings 5 that distribute vertically on the perisporium of the Plug Division of rotatable water-cooled joint 4, this radial direction seal ring 5 is sealed and matched with the hole wall of water-cooling channel 3, the outside of the Plug Division of rotatable water-cooled joint 4 is embedded with an axial limiting compressing tablet 6, this axial limiting compressing tablet 6 locks on aluminium sheet 1 (can be also Aluminum cover 2) by screw 7, with the Plug Division that prevents rotatable water-cooled joint 4, in water-cooling channel 3, get loose, but can not affect the circumferential rotation of rotatable water-cooled joint 4.
Aluminium sheet 1 and Aluminum cover 2 be in when welding, is that the outer side edges around water-cooling channel 3 connects along whole lap welding, after welding fabrication, in the outside of water-cooling channel 3, forms a Sealing shield ring, thereby can effectively prevent the cooling fluid overflow.
The outer surface of Aluminum cover 2 (can be also aluminium sheet 1) three of the upper, middle and lower heat conductive silica gel 21,22,23 that has been sticked, wherein, the width of a heat conductive silica gel 22 is greater than the width of upper and lower two heat conductive silica gels 21,23, be provided with structure glue 24 between two adjacent heat conductive silica gels, during assembling, by this structure glue 24, cooled plate is adhesively fixed on to the lithium battery module surface.
The center line of a middle heat conductive silica gel 22 is positioned at the location on the upper side of the center line of Aluminum cover 2 because this position normally lithium battery module produce the maximum place of heat, so the heat conductive silica gel that an area is larger is set.The width of upper and lower two heat conductive silica gels 21,23 is equal, and its width ratio with a middle heat conductive silica gel 22 is: 2/5~3/5.Three heat conductive silica gels and structure glue adopt the uniform thickness design, can improve like this planarization of cooled plate and lithium battery module Surface Contact.
Above-described embodiment is used for illustrative purposes only; and be not limitation of the present invention; the those of ordinary skill in relevant technologies field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all technical schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be limited by each claim.

Claims (7)

1. the sealing cooled plate structure be applied on lithium battery module, comprise the aluminium sheet and the Aluminum cover that weld together, it is characterized in that: on described aluminium sheet, die casting has water-cooling channel, the entrance point of described water-cooling channel and the port of export are plugged with respectively rotatable water-cooled joint, be embedded with at least one radial direction seal ring on the perisporium of the Plug Division of described rotatable water-cooled joint, the hole wall of this radial direction seal ring and water-cooling channel is sealed and matched, the outside of the Plug Division of described rotatable water-cooled joint is embedded with an axial limiting compressing tablet, this axial limiting compressing tablet by screw locking on aluminium sheet or Aluminum cover.
2. a kind of sealing cooled plate structure be applied on lithium battery module according to claim 1, it is characterized in that: described radial direction seal ring is provided with two, its axial distribution of Plug Division along rotatable water-cooled joint.
3. according to the described a kind of sealing cooled plate structure be applied on lithium battery module of claim 1 or 2, it is characterized in that: described aluminium sheet and Aluminum cover are when welding, be that outer side edges around described water-cooling channel connects along whole lap welding, after welding fabrication, in the outside of water-cooling channel, form a Sealing shield ring.
4. according to the described a kind of sealing cooled plate structure be applied on lithium battery module of claim 1 or 2, it is characterized in that: the outer surface of described aluminium sheet or Aluminum cover three of the upper, middle and lower heat conductive silica gel that has been sticked, wherein, the width of a heat conductive silica gel is greater than the width of upper and lower two heat conductive silica gels, between described two adjacent heat conductive silica gels, is provided with structure glue.
5. a kind of sealing cooled plate structure be applied on lithium battery module according to claim 4, it is characterized in that: the center line of the heat conductive silica gel in described centre is positioned at the location on the upper side of the center line of described aluminium sheet or Aluminum cover.
6. a kind of sealing cooled plate structure be applied on lithium battery module according to claim 4 is characterized in that: the width of described upper and lower two heat conductive silica gels equates, its width ratio with a middle heat conductive silica gel is: 2/5~3/5.
7. a kind of sealing cooled plate structure be applied on lithium battery module according to claim 4, it is characterized in that: described three heat conductive silica gels and structure glue adopt the uniform thickness design.
CN201210202215.2A 2012-06-06 2012-06-06 A kind of sealing cooled plate structure be applied on lithium battery module Expired - Fee Related CN103474712B (en)

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CN103474712B CN103474712B (en) 2015-12-16

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106299541A (en) * 2016-10-09 2017-01-04 浙江吉利控股集团有限公司 A kind of electrokinetic cell bag liquid cooling system
CN108987006A (en) * 2018-08-01 2018-12-11 株洲中车奇宏散热技术有限公司 A kind of the ship resistor disc water-cooling method and insulated water-cooling resistor of seawater corrosion resistance
CN110828937A (en) * 2019-11-21 2020-02-21 中车大连机车车辆有限公司 Temperature control system and method for power storage battery device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101557004A (en) * 2008-04-09 2009-10-14 通用汽车环球科技运作公司 Battery cooling plate design with discrete channels
CN102163702A (en) * 2010-02-23 2011-08-24 三洋电机株式会社 Power source apparatus and vehicle with the same
CN102263216A (en) * 2010-05-28 2011-11-30 通用汽车环球科技运作有限责任公司 Stackable repeating frame with integrated cell sensing connection
CN102280671A (en) * 2011-06-23 2011-12-14 台达电子企业管理(上海)有限公司 Cooling system
CN202205826U (en) * 2011-08-25 2012-04-25 比亚迪股份有限公司 Battery pack and power supply system with same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101557004A (en) * 2008-04-09 2009-10-14 通用汽车环球科技运作公司 Battery cooling plate design with discrete channels
CN102163702A (en) * 2010-02-23 2011-08-24 三洋电机株式会社 Power source apparatus and vehicle with the same
CN102263216A (en) * 2010-05-28 2011-11-30 通用汽车环球科技运作有限责任公司 Stackable repeating frame with integrated cell sensing connection
CN102280671A (en) * 2011-06-23 2011-12-14 台达电子企业管理(上海)有限公司 Cooling system
CN202205826U (en) * 2011-08-25 2012-04-25 比亚迪股份有限公司 Battery pack and power supply system with same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106299541A (en) * 2016-10-09 2017-01-04 浙江吉利控股集团有限公司 A kind of electrokinetic cell bag liquid cooling system
CN106299541B (en) * 2016-10-09 2019-02-26 浙江吉利控股集团有限公司 A kind of power battery pack liquid cooling system
CN108987006A (en) * 2018-08-01 2018-12-11 株洲中车奇宏散热技术有限公司 A kind of the ship resistor disc water-cooling method and insulated water-cooling resistor of seawater corrosion resistance
CN108987006B (en) * 2018-08-01 2021-07-30 株洲中车奇宏散热技术有限公司 Seawater corrosion resistant ship resistor disc water cooling method and insulating water-cooled resistor
CN110828937A (en) * 2019-11-21 2020-02-21 中车大连机车车辆有限公司 Temperature control system and method for power storage battery device

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Effective date of registration: 20160316

Address after: 321300 No. 18, Liu Qing Road, No. three, industrial base, Zhujiang Town, Zhejiang, Yongkang

Patentee after: Yongkang Juxiang Vehicle Co., Ltd.

Address before: 301, room 1, unit 3, 111 East Lane Street, Dongcheng Street, Yongkang, Zhejiang, 321300

Patentee before: Zhi Hongjun

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151216

Termination date: 20190606

CF01 Termination of patent right due to non-payment of annual fee