CN102368572B - Power battery pack - Google Patents
Power battery pack Download PDFInfo
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- CN102368572B CN102368572B CN2011103788107A CN201110378810A CN102368572B CN 102368572 B CN102368572 B CN 102368572B CN 2011103788107 A CN2011103788107 A CN 2011103788107A CN 201110378810 A CN201110378810 A CN 201110378810A CN 102368572 B CN102368572 B CN 102368572B
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- cooling
- battery pack
- power battery
- coldplate
- pipeline
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- 238000001816 cooling Methods 0.000 claims abstract description 115
- 239000000110 cooling liquid Substances 0.000 claims abstract description 6
- 239000012809 cooling fluid Substances 0.000 claims description 31
- 238000005057 refrigeration Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 4
- 238000004080 punching Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 239000007788 liquid Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 235000019628 coolness Nutrition 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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Classifications
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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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- Battery Mounting, Suspending (AREA)
Abstract
The invention provides a power battery pack comprising power batteries (1) and a cooling apparatus. The cooling apparatus comprises: an external cooling pipeline used for delivering cooling liquid; a cooling panel (2) arranged on the bottom of the power batteries (1); a plurality of main cooling pipelines (3) arranged on the cooling panel (2), wherein the main cooling pipelines (3) communicate with the external cooling pipeline used for delivering cooling liquid; and a plurality of branched cooling pipelines (4) arranged on the cooling panel (2), wherein the branched cooling pipelines (4) communicate with the main cooling pipelines. According to the cooling apparatus provided by the invention, through the controlling over the velocity of the cooling liquid and the replacing of different cooling liquids, the power battery pack cooling effect can be further optimized, the occurrence probability of cooling dead angles is effectively reduced, and the working security of the power battery pack is improved.
Description
Technical field
The present invention relates to the power battery technology field, more particularly, relate to a kind of power battery pack.
Background technology
The electric automobile development in recent years is rapid, and people are more and more to pay attention to its fail safe when pursuing its energy-conserving and environment-protective performance.
The power battery pack of existing electric automobile can produce amount of heat in the course of work, power battery pack can be in serious heat imbalance in its inside when work, thereby directly affect the useful life of electrokinetic cell, and have serious potential safety hazard, so the cooling when power battery pack is worked just becomes a very important link.Existing power battery pack cooling method mainly contains air-cooled and two kinds of water-cooleds, and the wind cooling temperature lowering process is subjected to the condition influence such as outside air temperature, wind speed, and temperature-fall period is wayward, and particularly lee face or side cooling-down effect are poorer, are easy to cause heat radiation uneven.The mode lowering temperature uniform of water-cooled cooling, cooling-down effect is stable, reliable, although but existing cooling device is not quite similar and characteristics is respectively arranged imperfections all, be easy to produce the cooling dead angle between the power battery pack adjacent cell, amount of heat is gathered and can't effectively be shed, and then affect the safe handling of power battery pack.
In sum, how providing a kind of power battery pack, to realize the cooling effect of further optimizing power battery pack, improve its job security, is present those skilled in the art's problem demanding prompt solution.
Summary of the invention
In view of this, the invention provides a kind of power battery pack, to realize the cooling effect of further optimizing power battery pack, avoid occurring the cooling dead angle, improve its job security.
In order to achieve the above object, the invention provides following technical scheme:
A kind of power battery pack comprises electrokinetic cell and cooling device, wherein:
Cooling device comprises: the external refrigeration pipeline of carrying cooling fluid;
Be arranged on the coldplate of described electrokinetic cell bottom;
Many cooling main lines that are arranged on the described coldplate and communicate with the external refrigeration pipeline of described conveying cooling fluid;
Be arranged on the described coldplate and be communicated with many of many described cooling main lines cooling minute pipelines;
Preferably, in the above-mentioned power battery pack, also comprise the connecting line that is communicated with the described coldplate of multilayer.Preferably, in the above-mentioned power battery pack, it is dog leg piping that described cooling divides pipeline.
Preferably, in the above-mentioned power battery pack, described cooling main line and a cooling minute pipeline are the punching press pipeline.
Preferably, in the above-mentioned power battery pack, described cooling main line is arranged on the edge of described coldplate.
Preferably, in the above-mentioned power battery pack, also be provided with the dull and stereotyped of the described cooling main line of covering and cooling minute pipeline on the described coldplate and be respectively arranged with water inlet and delivery port at described coldplate.
Preferably, in the above-mentioned power battery pack, described connecting line is two symmetrically arranged H-shaped pipelines.
Preferably, in the above-mentioned power battery pack, be provided with the controller of the described cooling liquid speed of control in the described external refrigeration pipeline.
Preferably, in the above-mentioned power battery pack, the T-shaped distribution of described electrokinetic cell.
Preferably, in the above-mentioned power battery pack, also comprise outer case and battery bracket.
With respect to prior art, the invention has the beneficial effects as follows:
Cooling device provided by the invention is when starting working, cooling fluid enters in the cooling line of coldplate, because coldplate is arranged on the bottom of electrokinetic cell and near electrokinetic cell, so can fully absorb the heat that electrokinetic cell discharges when flowing in the cooling main line of cooling fluid in coldplate and the cooling minute pipeline, in addition, many intensive coolings that are arranged between the cooling main line divide pipeline to have a very wide distribution, avoided the appearance at cooling dead angle as far as possible, the cooling main line, cooling minute pipeline and external refrigeration pipeline have formed the circulatory system and can control the flowing velocity of cooling fluid, the set-up mode of cooling main line and cooling minute pipeline on the coldplate, for cooling fluid provides the larger flowing space, so that electrokinetic cell can be cooled off fully.Therefore, cooling device provided by the invention is by controlling the flow velocity of cooling fluid and the purpose of changing different cooling fluids and realized further optimizing power battery pack cooling effect, widely distributed and intensive cooling divides pipeline to effectively reduce the probability that the cooling dead angle occurs, and has improved the job security of power battery pack.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of each parts of power battery pack that the bilayer that Fig. 1 provides for the embodiment of the invention arranges;
Fig. 2 is the double-deck plate structure of cooling schematic diagram that arranges;
Fig. 3 is that cooling fluid flows to schematic diagram in the coldplate of bilayer setting;
Fig. 4 is that cooling fluid flows to schematic diagram in the coldplate of bilayer setting;
Fig. 5 is that cooling fluid flows to schematic diagram in the coldplate of bilayer setting.
Among upper Fig. 1-Fig. 5:
Embodiment
The invention provides a kind of power battery pack, to realize the cooling effect of further optimizing power battery pack, avoid occurring the cooling dead angle, improve its job security.
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Please refer to accompanying drawing 1-2, the structural representation of each parts of power battery pack that the bilayer that Fig. 1 provides for the embodiment of the invention arranges; Fig. 2 is the double-deck plate structure of cooling schematic diagram that arranges.
A kind of power battery pack provided by the invention comprises electrokinetic cell 1 and the cooling device that described electrokinetic cell is cooled off, wherein:
Cooling device comprises: the external refrigeration pipeline of carrying cooling fluid;
Be arranged on the coldplate 2 of described electrokinetic cell bottom, a plurality of these coldplates 2 can carry out the combination of various ways to cooperate the power battery pack of different disposing ways, coldplate 2 can be the difform compound mode of individual layer, also can be the difform compound mode of multilayer;
Many cooling main lines 3 that are arranged on the described coldplate 2 and communicate with the external refrigeration pipeline of described conveying cooling fluid;
Be arranged on the described coldplate 2 and be communicated with many of described cooling main line 3 cooling minute pipelines 4; External refrigeration pipeline, cooling main line 3 and cooling minute pipeline 4 (also comprising connecting line 5 when coldplate 2 multilayers arrange) form a circulatory system.
The course of work of the power battery pack that provides in the embodiment of the invention is as follows:
Power battery pack can produce a large amount of heats when work, the cooling fluid that flows through the coldplate 2 that is arranged on electrokinetic cell 1 bottom can be with these heat absorption, electrokinetic cell 1 is cooled off, be arranged on cooling main line 3 on the coldplate 2 and fast cooling fluid be transported in each cooling minute pipeline 4, many widely distributed intensive coolings divide appearance that pipeline 4 avoided the cooling dead angle to the full extent and the fail safe of electrokinetic cell 1 are impacted.Can draw by the above-mentioned course of work, the power battery pack that the embodiment of the invention provides, the external refrigeration pipeline of its cooling device, cooling off main line 3 and cool off the circulatory system of dividing pipeline 4 (also comprising connecting line 5 when coldplate 2 multilayers arrange) to form can be by the effective adjustment that realizes power battery pack of the flow velocity of the change cooling fluid cooling fluid different with replacing, widely distributed cooling divides pipeline 4 also to reduce to the full extent the appearance at cooling dead angle, guaranteed that power battery pack can effectively work under the temperature conditions of the best, improve its job security, prolonged its useful life.
Shown in Fig. 2-5, Fig. 3, Fig. 4 and Fig. 5 are cooling fluid and flow to schematic diagram in the coldplates of bilayer setting.Preferably, the power battery pack that the embodiment of the invention provides also comprises the connecting line 5 that is communicated with the described coldplate 2 of multilayer.Because coldplate 2 can adopt different compound modes, so when coldplate 2 is set to multilayer, coldplate 2 between the different layers just can be realized being communicated with by connecting line 5, and cooling fluid can be circulated between different layers, has further improved the cooling effect to power battery pack.
For electrokinetic cell 1 is cooled off fully, the power battery pack that the embodiment of the invention provides, the cooling of its cooling device divides pipeline 4 to be dog leg piping, crooked cooling divides pipeline 4 to prolong the circulation path of cooling fluid, the bottom that is distributed in electrokinetic cell 1 that can be more perfect, at utmost avoid producing the cooling dead angle between the adjacent electrokinetic cell 1, improve the job security of power battery pack.
In order further to optimize technique scheme, the power battery pack that the embodiment of the invention provides, described cooling main line 3 and cooling minute pipeline 4 are the punching press pipeline, the cooling main line 3 on the coldplate 2 and cooling minute pipeline 4 adopt Sheet Metal Forming Technology processing, easy to process, manufacturing cost is lower.Concrete, under the prerequisite in not affecting the power battery pack normal operation, cooling main line 3 and cooling minute pipeline 4 can also adopt other processing mode.
In order to optimize flowing of cooling fluid, described cooling main line 3 is arranged on the edge of described coldplate 2, because described cooling main line 3 is compared with a cooling minute pipeline 4, the area of its cross section is larger, cooling fluid flows more smooth and easy in cooling main line 3, electrokinetic cell 1 can make cooling fluid arrive fast each position of coldplate 2, and then enter cooling minute pipeline 4, so that can obtain cooling fast fully.
Overflow in order to prevent cooling fluid from the cooling main line 3 of coldplate 2 and to cool off minute pipeline 4, electrokinetic cell 1 is impacted, also be provided with on the described coldplate 2 and cover the dull and stereotyped of described cooling main line 3 and cooling minute pipeline 4 and be respectively arranged with water inlet 6 and delivery port 7 at described coldplate 2, it is that the cooling main line 3 on the coldplate 2 and a cooling minute pipeline 4 are sealed that dull and stereotyped purpose is set, so that cooling fluid can only flow in cooling main line 3 and cooling minute pipeline 4, and can't overflow coldplate 2, electrokinetic cell 1 is done certain protection, purpose with smooth realization cooling, further improve the job security of power battery pack, the water inlet 6 and the delivery port 7 that keep on the coldplate 2 are parts of the whole circulatory system.
When electrokinetic cell is set to multilayer, describe as an example of bilayer example, cooling fluid is the coldplate 2 that flows to top layer through connecting line 5 from the coldplate 2 of bottom, such as Fig. 3, Fig. 4 and shown in Figure 5, the cooling of electrokinetic cell 1 correspondence of different parts divides the pattern of pipeline 4 also to be not quite similar, and can take different paths and cooling in various degree for the electrokinetic cell 1 of diverse location.Described connecting line 5 is two symmetrically arranged H-shaped pipelines.The H-shaped pipeline can play the effect of shunting and confluxing to cooling fluid, is conducive to the conveying of cooling fluid, further technical scheme is optimized.
In the circulatory system that is formed by external refrigeration pipeline, cooling main line 3 and cooling minute pipeline 4 (when coldplate 2 multilayers arrange, also comprising connecting line 5), be provided with the controller of the described cooling liquid speed of control in the described external refrigeration pipeline.By changing the flow velocity of cooling fluid, can effectively control the temperature of power battery pack inside, make power battery pack be in all the time the optimum temperature of its work.
The electrokinetic cell 1 T-shaped distribution of described power battery pack, and be double-deck, the coldplate 2 that is arranged on the top layer of the described electrokinetic cell of top layer 1 bottom also is that T shape distributes with the cold but plate 2 of the bottom that is arranged on the described electrokinetic cell of bottom 1 bottom, and be set to equally bilayer, so that the electrokinetic cell 1 of every part has the cooling device corresponding with it, fully power battery pack is cooled off.
Concrete, described power battery pack also comprises outer case 8 and battery bracket 9, outer case 8 covers power battery pack, reduce external environment to the impact of power battery pack work, battery bracket 9 stationary power batteries 1 and coldplate 2, because the structure of this battery bracket 9 is corresponding and simple in structure with the shape of electrokinetic cell, so it has the constant intensity height, characteristics easy to loading and unloading.
So having, the power battery pack that the embodiment of the invention provides to control temperature, as far as possible avoid lowering the temperature dead angle, job security height, low cost of manufacture, various features that constant intensity is high, easy to loading and unloading.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can in the situation that does not break away from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (4)
1. a power battery pack comprises electrokinetic cell (1) and cooling device, it is characterized in that, wherein:
Cooling device comprises: the external refrigeration pipeline of carrying cooling fluid;
Coldplate (2), described coldplate (2) is arranged on the bottom of described electrokinetic cell (1), and be provided with many cooling main lines (3) that communicate with the external refrigeration pipeline of described conveying cooling fluid on it, described cooling main line (3) is arranged on the edge of described coldplate (2);
Be arranged on described coldplate (2) and go up and be communicated with many cooling minute pipelines (4) of many described cooling main lines, described cooling divides the cross-sectional area of the cross-sectional area of pipeline (4) less than described cooling main line (3), and it is dog leg piping that described cooling divides pipeline (4);
Described coldplate (2) is set to multilayer, and is provided with water inlet (6) and delivery port (7) on each coldplate (2), and the described coldplate of multilayer (2) is communicated with by H-shaped connecting line (5);
It is upper to cover the flat board of described cooling main line (3) and cooling minute pipeline (4) to be arranged on described coldplate (2);
Be arranged in the described external refrigeration pipeline to control the controller of described cooling liquid speed.
2. power battery pack according to claim 1 is characterized in that, described cooling main line (3) and a cooling minute pipeline (4) are the punching press pipeline.
3. power battery pack according to claim 1 is characterized in that, the T-shaped distribution of described electrokinetic cell (1), and be set to bilayer.
4. power battery pack according to claim 1 is characterized in that, also comprises outer case (8) and battery bracket (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103788107A CN102368572B (en) | 2011-11-24 | 2011-11-24 | Power battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103788107A CN102368572B (en) | 2011-11-24 | 2011-11-24 | Power battery pack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102368572A CN102368572A (en) | 2012-03-07 |
| CN102368572B true CN102368572B (en) | 2013-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103788107A Active CN102368572B (en) | 2011-11-24 | 2011-11-24 | Power battery pack |
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| CN (1) | CN102368572B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623771B (en) * | 2012-04-26 | 2017-10-10 | 重庆长安汽车股份有限公司 | A kind of battery cooling plate structure |
| CN102751547B (en) * | 2012-07-19 | 2016-04-06 | 重庆长安汽车股份有限公司 | A kind of electrokinetic cell and liquid cooling system thereof |
| CN107464965B (en) * | 2017-08-01 | 2018-08-10 | 浙江合众新能源汽车有限公司 | A kind of battery pack and battery pack liquid cooling cooling system |
| CN107887651A (en) * | 2017-11-15 | 2018-04-06 | 上海空间电源研究所 | A kind of high power lithium battery group of integrated assembling |
| CN108091963A (en) * | 2017-12-12 | 2018-05-29 | 桑顿新能源科技有限公司 | A kind of new samming liquid cooling plate |
| DE102019113603A1 (en) * | 2019-05-22 | 2020-11-26 | Lisa Dräxlmaier GmbH | COOLING PLATE FOR A BATTERY FOR A MOTOR VEHICLE AND BATTERY FOR A MOTOR VEHICLE WITH A COOLING PLATE |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101559705A (en) * | 2009-06-01 | 2009-10-21 | 奇瑞汽车股份有限公司 | Arrangement method of electric automobile battery |
| CN201402851Y (en) * | 2009-04-09 | 2010-02-10 | 高宾 | Vehicular lithium power battery pack cooling device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009029629A1 (en) * | 2008-12-15 | 2010-06-17 | Visteon Global Technologies, Inc., Van Buren Township | Heat exchanger for controlling the temperature of vehicle batteries |
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2011
- 2011-11-24 CN CN2011103788107A patent/CN102368572B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201402851Y (en) * | 2009-04-09 | 2010-02-10 | 高宾 | Vehicular lithium power battery pack cooling device |
| CN101559705A (en) * | 2009-06-01 | 2009-10-21 | 奇瑞汽车股份有限公司 | Arrangement method of electric automobile battery |
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| CN102368572A (en) | 2012-03-07 |
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Effective date of registration: 20181123 Address after: 400023, No. 260, Jianxin East Road, Jiangbei District, Chongqing Co-patentee after: Chongqing Chang'an New Energy Automobile Co., Ltd. Patentee after: Chongqing Changan Automobile Co., Ltd. Co-patentee after: Hefei Changan Automobile Co., Ltd. Address before: 400023, No. 260, Jianxin East Road, Jiangbei District, Chongqing Co-patentee before: Chongqing Chang'an New Energy Automobile Co., Ltd. Patentee before: Chongqing Changan Automobile Co., Ltd. |
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