WO2019047252A1 - 一种散热电池包及电池包散热方法 - Google Patents

一种散热电池包及电池包散热方法 Download PDF

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Publication number
WO2019047252A1
WO2019047252A1 PCT/CN2017/101771 CN2017101771W WO2019047252A1 WO 2019047252 A1 WO2019047252 A1 WO 2019047252A1 CN 2017101771 W CN2017101771 W CN 2017101771W WO 2019047252 A1 WO2019047252 A1 WO 2019047252A1
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Prior art keywords
battery
battery pack
heat dissipation
pack
string
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PCT/CN2017/101771
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English (en)
French (fr)
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周峰
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江苏公爵新能源汽车有限公司
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Publication of WO2019047252A1 publication Critical patent/WO2019047252A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • H01M10/6563—Gases with forced flow, e.g. by blowers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION 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
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods 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
    • B60L58/26—Methods 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6554—Rods or plates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
    • 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
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Definitions

  • the invention relates to the technical field of battery pack heat dissipation technology, in particular to a heat dissipation battery pack and a battery pack heat dissipation method.
  • the battery pack for electric vehicles is composed of a plurality of single cells or supercapacitors in series and parallel according to the load requirements of the electric vehicle, and then a plurality of modules are connected in series and in parallel to form a battery pack of a certain voltage and capacity, and placed in a sealed box body. Form a battery pack.
  • the battery pack in the battery pack generates heat during charging and discharging. If the heat cannot be dissipated in time, it will affect the use of the battery pack, shorten the life of the battery pack, and even cause a safety accident; when the electric vehicle is at a low temperature Under the environment, due to poor low temperature performance of the battery, the electric vehicle can not be used normally or the driving range is short, especially at low temperature, which directly affects the battery life.
  • Battery pack cooling technology is a big problem in the electric vehicle industry.
  • the performance and service life of the battery pack are closely related to the operating temperature of the battery. Therefore, the heat dissipation of the battery pack is an unavoidable problem.
  • the battery pack sealing requirements for safety considerations and the heat dissipation of the battery pack are relatively contradictory problems.
  • the relatively high-end liquid cooling and heat dissipation structure can significantly improve this problem, it is greatly increased in cost and technology. Therefore, a new technical solution should be provided to solve the above problems.
  • the invention relates to a battery pack heat dissipation technology, in particular to a heat dissipation battery pack and a battery pack heat dissipation method.
  • the object of the present invention is to provide a battery pack made of an aluminum alloy material having good thermal conductivity, and a heat dissipation battery pack and a battery pack heat dissipation method for effectively dissipating heat dissipation of the battery pack in the heat dissipation hole between the battery packs,
  • the problem raised in the above background art is solved.
  • a heat dissipation battery pack and a battery pack heat dissipation method including a battery pack and a battery pack, wherein the battery pack is provided with a battery pack, and the battery pack is made of aluminum.
  • the gold material is poured, the inside of the battery pack is provided with a battery cavity, the bottom of the battery pack is provided with a heat sink, and the heat sink is integrally formed with the battery pack.
  • the battery chamber is formed in a figure-eight shape, a battery string is arranged inside the battery chamber, a battery is arranged on the battery string, and a positive electrode and a negative electrode of the adjacent battery are connected, and one end of the battery chamber is provided on one side of the outer wall.
  • the connecting groove is provided with a connecting rib on the other side of the outer wall of one end of the battery chamber, and the connecting groove and the connecting rib are matched with each other.
  • a groove is disposed between the outer walls of the adjacent two battery chambers on the battery pack, and a vent hole is disposed between the adjacent two battery packs.
  • the negative end of the battery string is provided with a connecting reed.
  • the battery string and the battery cavity are coincident with each other.
  • the heat dissipation battery package and the heat dissipation method thereof include the following steps:
  • A connecting the positive electrode and the negative electrode of the battery to each other to form a battery string
  • the battery strings are connected in series by connecting the reeds between the negative poles of the battery pack;
  • the battery pack with the battery string will be installed, and the battery pack is connected and fixed by using the connecting groove on the outer side of the battery pack and the connecting rib to form a battery pack;
  • Ventilation holes are formed after the adjacent battery packs are connected.
  • the battery pack is integrally formed of aluminum alloy material, which not only has anti-breakdown, but also has good heat conduction effect, and the heat dissipation hole between the battery packs effectively dissipates the heat conducted by the battery pack;
  • vent hole formed between the gaps of the battery pack connection effectively accelerates the dissipation of heat generated by the aluminum alloy.
  • FIG. 1 is a schematic view showing the overall structure of a battery pack of the present invention
  • FIG. 2 is a schematic structural view of a battery pack of the present invention
  • FIG. 3 is a schematic structural view of a connecting buckle between battery packs of the present invention.
  • Figure 4 is a schematic view of the overall structure of the present invention.
  • Fig. 5 is a schematic cross-sectional view showing the connection of the negative electrode of the battery pack of the present invention.
  • the present invention provides a technical solution: a heat dissipation battery pack and a battery pack heat dissipation method, including a battery pack 1 and a battery pack 2 , and a battery pack 2 and a battery pack on the battery pack 1 .
  • Pack 2 is made of aluminum alloy
  • battery pack 2 is made of aluminum alloy. It not only has anti-breakdown, but also has good heat conduction effect.
  • the heat dissipation hole between battery pack 2 effectively dissipates the heat conducted by the battery pack.
  • the inside of the bag 2 is provided with a battery chamber 3, and the bottom of the battery pack 2 is provided with a heat sink 4, and the heat sink 4 is integrally formed with the battery pack 2.
  • the battery chamber 3 is formed in a figure-eight shape, and the battery compartment 3 is provided with a battery string 9, the battery string 9 and the battery chamber 3 are matched with each other, and the negative end of the battery string 9 is provided with a connecting reed 7,
  • the reed 7 electrically connects the battery strings 9 to each other, and the battery string 9 is provided with a battery.
  • the positive electrode of the adjacent battery is connected to the negative electrode.
  • the outer wall of one end of the battery chamber 3 is provided with a connecting groove 5, and the outer wall of one end of the battery chamber 3 is further provided.
  • a connecting rib 6 is provided on one side, and the connecting groove 5 and the connecting rib 6 are matched with each other, and the battery pack 2 can be quickly connected through the connecting groove 5 and the connecting rib 6.
  • a groove is arranged between the outer walls of the adjacent two battery chambers 3 on the battery pack 2, and a venting hole 8 is arranged between the adjacent two battery packs, thereby effectively accelerating the aluminum alloy to dissipate heat generated by the battery, so that the battery is kept in one Safe and stable state.
  • the heat dissipation battery package and the heat dissipation method thereof include the following steps:
  • A the positive and negative electrodes of the battery are connected to each other to form a battery string 9;
  • the battery pack 9 is connected in series between the negative poles of the battery pack 2 through the connecting reed 7;
  • the battery pack 2 with the battery string 9 installed the battery pack 2 is connected and fixed by the connecting groove 5 on the outer side of the battery pack 2, to form the battery pack 1;
  • a venting hole 8 is formed after the adjacent battery packs 2 are connected.
  • the battery pack is integrally formed of aluminum alloy material, which not only has anti-breakdown, but also has good heat conduction effect, and the heat dissipation hole between the battery packs effectively dissipates the heat conducted by the battery pack;
  • vent hole formed between the gaps of the battery pack connection effectively accelerates the dissipation of heat generated by the aluminum alloy.

Abstract

一种散热电池包及电池包散热方法，包括电池组（1）、电池包（2），在电池组（1）上设有电池包（2）、电池腔（3）、散热片（4）、连接凹槽（5）、连接凸筋（6）、连接簧片（7）、通风孔（8）、电池串（9），电池串（9）的正极、负极相互串联形成电池串（9），将串联好的电池串（9）安装到电池腔（3）内，电池串（9）与电池腔（3）相互配合，电池包（2）的外壁上形成凹槽，在电池包的外壁上两侧分别设有连接凹槽（5）与连接凸筋（6），电池包（2）之间通过电池包（2）外壁上的连接凹槽（5）与连接凸筋（6）来将电池包（2）之间相互连接形成一个电池组（1），因为电池包（2）的外壁呈凹陷状，相邻的电池包（2）连接后，电池包（2）之间会形成通风孔（8），电池包（2）采用铝合金材质一体成型，不仅具有防击穿，而且还具有良好的导热效果，电池包（2）之间的通风孔（8）有效的将电池包传导的热量散发。

Description

一种散热电池包及电池包散热方法 技术领域
本发明涉及电池包散热技术技术领域，具体为一种散热电池包及电池包散热方法。
背景技术
电动车用电池包是根据电动车负载要求，由多个单体电池或超级电容器串并联组成模块，再由多个模块串并联组成一定电压和容量的电池组，放在一个密封的箱体内部形成电池包。电池包内电池组在充放电过程中会产生热量，这些热量如果不能及时散发的话，轻则会影响电池组的使用，缩短电池组的寿命，重则甚至会发生安全事故；当电动汽车在低温环境下使用，因电池的低温性能差，导致电动车不能正常使用或行驶里程短，尤其是在低温下充电，直接影响电池的寿命。
电池包散热技术是电动汽车产业的一大难题，电池包使用性能和使用寿命同电池的工作温度有着密切联系，因此电池包散热是个无法回避的问题。出于安全考虑的电池包密封要求和电池包散热是个相对矛盾的问题，比较高端的液体冷却散热结构等虽然能明显改善这个问题，但是在成本和技术上却大大增加了。因此，应该提供一种新的技术方案解决上述问题。
本发明与电池包散热技术有关，特别是关于一种散热电池包及电池包散热方法。
发明内容
本实发明的目的在于提供一种采用具有导热性好的铝合金材质制成的电池包，在电池包之间的散热孔有效加快电池包散热的一种散热电池包及电池包散热方法，以解决上述背景技术中提出的问题。
为实现上述目的，本发明提供如下技术方案：一种散热电池包及电池包散热方法,包括电池组、电池包，所述电池组上设有电池包，电池包采用铝合 金材质浇筑，所述电池包的的内部设有电池腔，所述电池包的底部设有散热片，散热片与电池包一体成型。
优选的，所述电池腔成8字型，所述电池腔的内部设有电池串，电池串上设有电池，相邻电池的正极与负极相连，所述电池腔的一端外壁一侧设有连接凹槽，电池腔的一端外壁另一侧设有连接凸筋，所述连接凹槽与连接凸筋相互吻合。
优选的，所述电池包上相邻两个电池腔的外壁之间设有凹槽，相邻两个电池包之间设有通风孔。
优选的，所述电池串的负极端设有连接簧片。
优选的，所述电池串与电池腔相互吻合。
该散热电池包，其散热方法：包括以下步骤：
A、将电池的正极、负极相互连接，形成电池串；
B、将电池串安装到电池包上的电池腔内部；
C、电池包负极之间通过连接簧片将电池串进行串联导通；
D、将安装有电池串的电池包，利用电池包外侧的连接凹槽与连接凸筋将电池包连接固定，组成电池组；
E、相邻电池包之间连接后形成通风孔。
与现有技术相比，本发明的有益效果是：
(1)电池包采用铝合金材质一体成型，不仅具有防击穿，而且还具有良好的导热效果，电池包之间的散热孔有效将电池包传导的热量散发；
(2)电池包连接的间隙之间形成的通风孔，有效加快铝合金将电池产生的热量散发。
附图说明
图1为本发明的电池组整体结构示意图；
图2为本发明的电池包结构示意图；
图3为本发明的电池包之间的连接扣结构示意图；
图4为本发明的整体结构示意图；
图5为本发明的电池组的负极连接截面示意图。
图中：1、电池组；2、电池包；3、电池腔；4、散热片；5、连接凹槽；6、连接凸筋；7、连接簧片；8、通风孔；9、电池串。
具体实施方式
下面将结合本发明实施例中的附图，对本发明施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参阅图1、图2或图3，本发明提供一种技术方案：一种散热电池包及电池包散热方法,包括电池组1、电池包2，电池组1上设有电池包2，电池包2采用铝合金材质浇筑，电池包2采用铝合金材质一体成型，不仅具有防击穿，而且还具有良好的导热效果，电池包2之间的散热孔有效将电池包传导的热量散发，电池包2的的内部设有电池腔3，电池包2的底部设有散热片4，散热片4与电池包2一体成型。
请参阅图4或图5，电池腔3成8字型，电池腔3的内部设有电池串9，电池串9与电池腔3相互吻合，电池串9的负极端设有连接簧片7，簧片7将电池串9相互导通，电池串9上设有电池，相邻电池的正极与负极相连，电池腔3的一端外壁一侧设有连接凹槽5，电池腔3的一端外壁另一侧设有连接凸筋6，连接凹槽5与连接凸筋6相互吻合，通过连接凹槽5与连接凸筋6能够将电池包2快速连接。
电池包2上相邻两个电池腔3的外壁之间设有凹槽，相邻两个电池包之间设有通风孔8，有效加快铝合金将电池产生的热量散发，使电池保持在一个安全、稳定的状态。
该散热电池包，其散热方法：包括以下步骤：
A、将电池的正极、负极相互连接，形成电池串9；
B、将电池串9安装到电池包2上的电池腔3内部；
C、电池包2负极之间通过连接簧片7将电池串9进行串联导通；
D、将安装有电池串9的电池包2，利用电池包2外侧的连接凹槽5与连接凸筋6将电池包2连接固定，组成电池组1；
E、相邻电池包2之间连接后形成通风孔8。
本发明的有益效果是：
(1)电池包采用铝合金材质一体成型，不仅具有防击穿，而且还具有良好的导热效果，电池包之间的散热孔有效将电池包传导的热量散发；
(2)电池包连接的间隙之间形成的通风孔，有效加快铝合金将电池产生的热量散发。
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。

Claims (6)

  1. 一种散热电池包,包括电池组(1)、电池包(2)，其特征在于：所述电池组(1)上设有电池包(2)，电池包(2)采用铝合金材质浇筑，所述电池包(2)的的内部设有电池腔(3)，所述电池包(2)的底部设有散热片(4)，散热片(4)与电池包(2)一体成型。
  2. 根据权利要求1所述的一种散热电池包，其特征在于：所述电池腔(3)成8字型，所述电池腔(3)的内部设有电池串(9)，电池串(9)上设有电池，相邻电池的正极与负极相连，所述电池腔(3)的一端外壁一侧设有连接凹槽(5)，电池腔(3)的一端外壁另一侧设有连接凸筋(6)，所述连接凹槽(5)与连接凸筋(6)相互吻合。
  3. 根据权利要求1所述的一种散热电池包，其特征在于：所述电池包(2)上相邻两个电池腔(3)的外壁之间设有凹槽，相邻两个电池包之间设有通风孔(8)。
  4. 根据权利要求2所述的一种散热电池包，其特征在于：所述电池串(9)的负极端设有连接簧片(7)。
  5. 根据权利要求1或2所述的一种散热电池包，其特征在于：所述电池串(9)与电池腔(3)相互吻合。
  6. 实现权力要求1所述的一种散热电池包的电池包散热方法，其特征在于：包括以下步骤：
    A、将电池的正极、负极相互连接，形成电池串(9)；
    B、将电池串(9)安装到电池包(2)上的电池腔(3)内部；
    C、电池包(2)负极之间通过连接簧片(7)将电池串(9)进行串联导通；
    D、将安装有电池串(9)的电池包(2)，利用电池包(2)外侧的连接凹槽(5)与连接凸筋(6)将电池包(2)连接固定，组成电池组(1)；
    E、相邻电池包(2)之间连接后形成通风孔(8)。
PCT/CN2017/101771 2017-09-05 2017-09-14 一种散热电池包及电池包散热方法 WO2019047252A1 (zh)

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