CN112103429A - New energy battery pack - Google Patents
New energy battery pack Download PDFInfo
- Publication number
- CN112103429A CN112103429A CN202010944804.2A CN202010944804A CN112103429A CN 112103429 A CN112103429 A CN 112103429A CN 202010944804 A CN202010944804 A CN 202010944804A CN 112103429 A CN112103429 A CN 112103429A
- Authority
- CN
- China
- Prior art keywords
- battery pack
- heat dissipation
- new energy
- arc
- liquid cooling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000017525 heat dissipation Effects 0.000 claims abstract description 43
- 238000001816 cooling Methods 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 230000000052 comparative effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 239000000110 cooling liquid Substances 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 210000004262 dental pulp cavity Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
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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
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
- H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
-
- 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
-
- 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
- H01M10/6567—Liquids
-
- 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 relates to the technical field of new energy, in particular to a new energy battery pack, which comprises a battery module, a heat dissipation system and a battery pack shell, wherein the battery module is arranged on the battery pack shell; the battery module is arranged in the battery pack shell, the battery pack shell is formed by splicing two plastic half frame bodies left and right, and a heat dissipation channel is arranged in the side wall of each plastic half frame; the heat dissipation system comprises a liquid cooling pipe, the liquid cooling pipe is attached to the battery module, and the liquid cooling pipe is communicated with the heat dissipation channel; the liquid cooling pipe is wrapped with heat conducting fins; the battery pack shell is provided with an arc protrusion strip, and the heat dissipation channel is positioned in the arc protrusion strip; arc sunken grooves are arranged among the arc protruding strips, a plurality of air inlet channels are arranged in the arc sunken grooves, and the air inlet channels are communicated with the outside. Compared with the prior art, the working temperature of the battery pack is effectively guaranteed, the potential safety hazard of the battery pack is reduced, and the safety performance of the battery pack is improved.
Description
Technical Field
The invention relates to the technical field of new energy, in particular to a new energy battery pack.
Background
The battery pack is a core energy source of a new energy automobile and provides driving electric energy for the whole automobile, and the battery pack mainly forms a battery pack main body through box body enveloping. The battery pack mainly comprises a battery core, a module, an electrical system, a thermal management system, a box body and a BMS.
At present, the common heat radiation structure of battery package includes air-cooled structure radiating mode and liquid cooling radiating mode:
the air cooling heat dissipation is to install a heat dissipation fan at one end of the battery pack and leave a vent hole at the other end, so that air flows in gaps of the battery cell at an accelerated speed and high heat generated during the operation of the battery cell is taken away; in the mode, when the automobile runs at high speed again, the wind speed in the battery pack is too high, and hidden danger is caused to parts in the battery pack.
In addition, the liquid cooling heat dissipation mode is that the heat of the battery core is transferred to the liquid cooling pipe through the heat conducting silica gel sheet, the heat is taken away by the free circulating flow of the cooling liquid after expansion with heat and contraction with cold, so that the temperature of the whole battery pack is uniform, the heat generated during the work of the battery core is absorbed by the strong specific heat capacity of the cooling liquid, and the whole battery pack operates within the safe temperature; the main problem of the method is that the liquid cooling pipe needs to be communicated with the outside, and the box body of the battery pack needs to be provided with a plurality of holes so that the liquid cooling pipe can be communicated with the outside, so that the integral structure of the box body can be broken by the holes on the box body, certain influence is caused on the mechanical property of the box body, and the potential safety hazard is also caused.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
One of the purposes of the invention is to provide a new energy battery pack, which can effectively ensure the working temperature of the battery pack, reduce the potential safety hazard of the battery pack and improve the safety performance of the battery pack.
In order to achieve the above purpose of the present invention, the following technical solutions are adopted:
a new energy battery pack comprises a battery module, a heat dissipation system and a battery pack shell;
the battery module is arranged in the battery pack shell, the battery pack shell is formed by splicing two plastic half frame bodies left and right, and a heat dissipation channel is arranged in the side wall of each plastic half frame;
the heat dissipation system comprises a liquid cooling pipe, the liquid cooling pipe is attached to the battery module, and the liquid cooling pipe is communicated with the heat dissipation channel.
Preferably, the liquid cooling pipe is wrapped with heat conducting fins.
Preferably, an arc protrusion strip is arranged on the battery pack shell, and the heat dissipation channel is located in the arc protrusion strip.
Preferably, an arc depressed groove is formed between the arc protruding strips, a plurality of air inlet channels are arranged in the arc depressed groove, and the air inlet channels are communicated with the outside.
Preferably, the air intake passage is a spiral air passage.
Preferably, a closing switch is arranged on the air inlet channel.
Compared with the prior art, the new energy battery pack provided by the invention has the following advantages:
1. according to the new energy battery pack provided by the invention, the battery pack shell is formed by splicing two plastic half frame bodies from left to right, the side wall of each plastic half frame is internally provided with the heat dissipation channel, and the liquid cooling pipe is communicated with the heat dissipation channel.
2. According to the new energy battery pack provided by the invention, the arc-shaped protruding strip is arranged on the battery pack shell, and the heat dissipation channel is positioned in the arc-shaped protruding strip, so that the heat dissipation channel can have more contact area with the inner space of the battery pack, and the heat dissipation efficiency is improved.
3. The invention provides a new energy battery pack, wherein arc-shaped concave grooves are formed among arc-shaped protruding strips, a plurality of air inlet channels are arranged in the arc-shaped concave grooves, and the air inlet channels are communicated with the outside; firstly, the arc concave grooves are arranged between the arc protruding strips so that the heat dissipation channel can have more contact area with the inner space of the battery pack, and the heat dissipation efficiency is improved; secondly, the air inlet channel is arranged to enable external air to be communicated with the inside of the battery pack, so that the air can flow between gaps of the battery cell at an accelerated speed, high heat generated during the operation of the battery cell is taken away, and the heat dissipation efficiency is improved.
4. According to the new energy battery pack provided by the invention, the air inlet channel is the spiral air channel, the flow rate of air in the battery pack can be effectively reduced through the spiral air channel, and the safety performance of the new energy battery pack is improved.
Drawings
The invention will be better understood and other objects, details, characteristics and advantages thereof will become more apparent in the course of the following description of several particular embodiments of the invention, given by way of illustration only and not by way of implied limitation with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a new energy battery pack provided by the present invention.
Fig. 2 is a schematic structural diagram of a heat dissipation system in a new energy battery pack according to the present invention.
Fig. 3 is a schematic cross-sectional view of a plastic half frame in a new energy battery pack provided by the invention.
Fig. 4 is a cross-sectional view of an air inlet channel in a new energy battery pack provided by the invention.
Fig. 5 is a structural diagram of a comparison example of the spiral air passage.
The reference numerals refer to the following:
1-liquid cooling tube
2-Battery Module
3-plastic half frame
4-air intake channel
5-Heat dissipation channel connector
6-Heat dissipation channel
7-arc concave groove
8-arc protrusion strip.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements.
As shown in fig. 1, an embodiment of the present invention provides a new energy battery pack, which includes a battery module 2, a heat dissipation system, and a battery pack case; the battery module 2 is arranged in a battery pack shell, the battery pack shell is formed by splicing two plastic half-frames 3 left and right, and a heat dissipation channel 6 is arranged in the side wall of each plastic half-frame 3; the heat dissipation system comprises a liquid cooling pipe 1, the liquid cooling pipe 1 is attached to the battery module 2, the liquid cooling pipe 1 is communicated with the heat dissipation channel 6 through a heat dissipation channel connecting port 5, the connection mode of the liquid cooling pipe 1 and the heat dissipation channel 6 is not marked in the figure, but the connection mode belongs to conventional connection known by technical personnel in the field, and in addition, the inflow end and the outflow end of the liquid cooling pipe 1 are respectively connected with the heat dissipation channel connecting port 5 through a root canal. According to the new energy battery pack provided by the invention, the battery pack shell is formed by splicing two plastic half-frames 3 left and right, the heat dissipation channel 6 is arranged in the side wall of each plastic half-frame 3, and the liquid cooling pipe 1 is communicated with the heat dissipation channel 6, so that the heat dissipation channel 6 can be arranged in the side wall of each plastic half-frame 3 because the battery pack shell is made of a plastic product, the battery pack shell is processed in an integrated forming mode, a hole for communicating the liquid cooling pipe 1 with the outside does not need to be additionally formed in the battery pack shell, and the mechanical strength of the battery pack shell is increased.
As shown in fig. 2, in one embodiment of the present invention, a new energy battery pack is provided, in which a liquid cooling pipe 1 is wrapped with a heat conducting sheet. The arrangement of the heat-conducting fins improves the heat transfer efficiency of the battery module 2.
As shown in fig. 3, in an embodiment of the present invention, an arc protrusion strip 8 is disposed on a casing of a new energy battery pack, and a heat dissipation channel 6 is located in the arc protrusion strip 8. The mode that sets up like this can make heat dissipation channel 6 can have more area of contact with the battery package inner space, has improved the radiating efficiency.
One embodiment of the invention provides a new energy battery pack, wherein arc concave grooves 7 are arranged between the arc protruding strips 8, a plurality of air inlet channels 4 are arranged in the arc concave grooves 7, and the air inlet channels 4 are communicated with the outside. Firstly, the arc concave grooves 7 are arranged between the arc protruding strips 8, so that the heat dissipation channel 6 can have more contact area with the inner space of the battery pack, and the heat dissipation efficiency is improved; secondly, the air inlet channel 4 is arranged to enable external air to be communicated with the inside of the battery pack, so that the air can flow between gaps of the battery cell at an accelerated speed, high heat generated during the operation of the battery cell is taken away, and the heat dissipation efficiency is improved.
As shown in fig. 4, in an embodiment of the invention, a new energy battery pack is provided, an air inlet channel 4 is a spiral air channel, and a closing switch is arranged on the air inlet channel 4. The flow rate of air in the battery pack can be effectively reduced through the spiral air passage, and the safety performance of the new energy battery pack is improved. In addition, in order to verify through the experiment that the discovery, the wind that flows into in the battery package from spiral air flue is for surrounding the wind, and not directly blow to battery module 2, has consequently formed a surrounding type on battery module 2's heat transfer mode and has surrounded the heat transfer, can further raise the efficiency to battery module 2 more can evenly dispel the heat.
To verify this effect, the control example was designed as follows:
example 1: the new energy battery pack with the spiral air passage is shown in fig. 4.
Comparative example 1: the new energy battery pack with the spiral air passage is shown in fig. 5.
It was found through measurement that the new energy battery pack of example 1 has higher heat dissipation efficiency than the new energy battery pack of comparative example 1 under the same speed driving condition.
In addition, the temperature of the battery module 2 in the new energy battery pack in embodiment 1 is more even; the temperature of the battery module 2 in the new energy battery in the comparative example 1 fluctuates to some extent, because the outlet of the spiral air duct in the comparative example 1 is a straight duct, the wind flowing into the battery pack from the spiral air duct is a straight wind, and there may be a partial region where the straight wind does not flow, the temperature of the battery module 2 fluctuates to some extent.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. A new energy battery pack is characterized by comprising a battery module, a heat dissipation system and a battery pack shell;
the battery module is arranged in the battery pack shell, the battery pack shell is formed by splicing two plastic half frame bodies left and right, and a heat dissipation channel is arranged in the side wall of each plastic half frame;
the heat dissipation system comprises a liquid cooling pipe, the liquid cooling pipe is attached to the battery module, and the liquid cooling pipe is communicated with the heat dissipation channel.
2. The new energy battery pack according to claim 1, wherein the liquid cooling pipe is wrapped with a heat conducting sheet.
3. The new energy battery pack according to claim 2, wherein an arc protrusion strip is disposed on the battery pack case, and the heat dissipation channel is located in the arc protrusion strip.
4. The new energy battery pack according to claim 3, wherein arc-shaped recessed grooves are provided between the arc-shaped protruding strips, and a plurality of air inlet passages are provided in the arc-shaped recessed grooves, the air inlet passages communicating with the outside.
5. The new energy battery pack according to claim 4, wherein the air intake passage is a spiral air passage.
6. The new energy battery pack according to claim 5, wherein a closing switch is arranged on the air inlet channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010944804.2A CN112103429A (en) | 2020-09-10 | 2020-09-10 | New energy battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010944804.2A CN112103429A (en) | 2020-09-10 | 2020-09-10 | New energy battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112103429A true CN112103429A (en) | 2020-12-18 |
Family
ID=73751251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010944804.2A Pending CN112103429A (en) | 2020-09-10 | 2020-09-10 | New energy battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112103429A (en) |
Citations (10)
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|---|---|---|---|---|
| JP2003257394A (en) * | 2001-12-28 | 2003-09-12 | Toshiba Corp | Battery pack and rechargeable cleaner |
| KR20090091942A (en) * | 2008-02-26 | 2009-08-31 | 현대자동차주식회사 | Ventilation device for battery module of hev |
| CN202817140U (en) * | 2012-09-07 | 2013-03-20 | 华南理工大学 | Air cooling and liquid cooling mixed type electric car battery heat managing device |
| CN103283074A (en) * | 2011-01-04 | 2013-09-04 | 罗伯特·博世有限公司 | Controlling the temperature of galvanic cells by means of heat-conducting plastics compounds |
| CN206401471U (en) * | 2017-01-16 | 2017-08-11 | 成都雅骏新能源汽车科技股份有限公司 | A kind of water-cooling structure of battery |
| CN107819172A (en) * | 2017-10-25 | 2018-03-20 | 珠海格力电器股份有限公司 | A kind of battery cartridge module, battery component and car |
| CN109244589A (en) * | 2018-07-26 | 2019-01-18 | 西安交通大学 | A kind of modularization cylindrical battery liquid cooling structure |
| WO2019169080A1 (en) * | 2018-03-01 | 2019-09-06 | Shape Corp. | Cooling system integrated with vehicle battery tray |
| CN209592257U (en) * | 2019-01-14 | 2019-11-05 | 广东合一新材料研究院有限公司 | Cell flexible liquid-cooling heat radiation structure and power supply device |
| CN210576340U (en) * | 2019-12-13 | 2020-05-19 | 任李菲阳 | Electric automobile battery thermal management device |
-
2020
- 2020-09-10 CN CN202010944804.2A patent/CN112103429A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003257394A (en) * | 2001-12-28 | 2003-09-12 | Toshiba Corp | Battery pack and rechargeable cleaner |
| KR20090091942A (en) * | 2008-02-26 | 2009-08-31 | 현대자동차주식회사 | Ventilation device for battery module of hev |
| CN103283074A (en) * | 2011-01-04 | 2013-09-04 | 罗伯特·博世有限公司 | Controlling the temperature of galvanic cells by means of heat-conducting plastics compounds |
| CN202817140U (en) * | 2012-09-07 | 2013-03-20 | 华南理工大学 | Air cooling and liquid cooling mixed type electric car battery heat managing device |
| CN206401471U (en) * | 2017-01-16 | 2017-08-11 | 成都雅骏新能源汽车科技股份有限公司 | A kind of water-cooling structure of battery |
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| CN109244589A (en) * | 2018-07-26 | 2019-01-18 | 西安交通大学 | A kind of modularization cylindrical battery liquid cooling structure |
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| CN210576340U (en) * | 2019-12-13 | 2020-05-19 | 任李菲阳 | Electric automobile battery thermal management device |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201218 |
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| RJ01 | Rejection of invention patent application after publication |