CN109066007B - Large-scale battery module integration box cooling system based on heat pipe - Google Patents
Large-scale battery module integration box cooling system based on heat pipe Download PDFInfo
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- CN109066007B CN109066007B CN201810832795.0A CN201810832795A CN109066007B CN 109066007 B CN109066007 B CN 109066007B CN 201810832795 A CN201810832795 A CN 201810832795A CN 109066007 B CN109066007 B CN 109066007B
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- cooling
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- heat
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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
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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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
- H01M10/6552—Closed pipes transferring heat by thermal conductivity or phase transition, e.g. heat pipes
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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
- H01M10/6554—Rods or plates
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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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- Secondary Cells (AREA)
Abstract
The invention discloses a large-scale battery module integrated box cooling system based on a heat pipe, which comprises a battery module integrated box body, a cooling box body and the heat pipe, wherein the battery module integrated box body comprises an integrated box body shell with an opening at the top, a battery module arranged in the box body shell and a box body top plate for sealing the top of the box body shell; the heat pipe is arranged between the battery modules which are arranged in parallel through one end of a heat pipe mounting bracket fixed on the integrated box body shell and the cooling box body shell, and the other end of the heat pipe mounting bracket is arranged on the cooling plate. The invention improves the assembly efficiency of the battery module, greatly reduces the temperature of the battery, improves the consistency and the output stability of the battery in the battery module, and prolongs the service life of the battery.
Description
Technical Field
The invention relates to a battery cooling device, in particular to a large-scale battery module integrated box cooling system based on a heat pipe.
Background
The battery is used as an energy storage device element and is a key component in an energy storage system, and a large amount of heat is generated in the charging and discharging processes to cause the thermal runaway phenomenon of the single batteries in the battery module, so that very serious unbalanced temperature distribution is generated between each single battery and each battery module, the performance of the batteries is not matched, and the premature failure of the battery module is further caused.
At present, most of large-scale battery module integration box systems adopt an air conditioning system for cooling to achieve the purposes of reducing the temperature of batteries and balancing the temperature among the batteries, but the air conditioning system has relatively high operation cost and is not beneficial to the popularization of large-scale energy storage systems.
Disclosure of Invention
The purpose of the invention is as follows: the invention mainly aims to provide a large-scale battery module cooling system based on a heat pipe, and aims to reduce the cost of cooling a large-scale battery module, improve the battery consistency and the output stability of the battery module and prolong the service life of the battery.
The technical scheme is as follows: in order to realize the purpose of the invention, the technical scheme is as follows:
a large-scale battery module integrated box cooling system based on a heat pipe comprises a battery module integrated box body, a cooling box body and a heat pipe, wherein the heat pipe is used for guiding heat in the battery module integrated box body to the cooling box body to realize heat dissipation; the heat pipe is arranged between the battery modules which are arranged in parallel through one end of a heat pipe mounting bracket fixed on the integrated box body shell and the cooling box body shell, and the other end of the heat pipe mounting bracket is arranged on the cooling plate.
Preferably, the heat pipes are horizontally arranged or obliquely inserted, the horizontally arranged liquid absorption core heat pipes are obliquely inserted, the obliquely inserted gravity heat pipes are arranged, the heat absorption ends of the liquid absorption core heat pipes and the heat absorption ends of the gravity heat pipes are respectively arranged in the upper area and the lower area in the integrated box body, the cooling ends of the liquid absorption core heat pipes and the cooling ends of the gravity heat pipes are connected with the same cooling plate, and the liquid absorption core heat pipes and the gravity heat pipes are arranged in a crossed mode.
Preferably, the heat pipe is a flexible flat heat pipe.
Preferably, the heat pipe and the heat pipe mounting bracket are of an integrated structure.
Preferably, a heat-conducting silica gel layer is further arranged outside the heat pipe.
Preferably, the number of the battery module integration boxes is two, the battery module integration boxes are symmetrically arranged on two sides of the cooling box, and each battery module integration box corresponds to a plurality of groups of cooling plates respectively.
Preferably, the spraying device comprises a spraying pipe and a plurality of spraying heads, and a group of cooling plates are correspondingly arranged below each spraying head.
Preferably, the surface of the cooling plate is subjected to fine corrugation treatment and is provided with a groove for installing a heat pipe cooling end, one section of pipeline of the heat pipe cooling end is embedded in the groove, and the cooling plate is connected with the cooling box shell through a screw or a clamping structure.
Preferably, the cooling liquid in the spraying device is cooling oil or cooling water.
Preferably, the side plate of the integrated box shell adjacent to the cooling box body is a shutter steel plate, the side plate of the cooling box shell adjacent to the integrated box body is a steel plate, a through hole with a sealing groove is formed in the steel plate, and the heat pipe penetrates through the through hole with the sealing groove and is sealed by sealing colloid.
Has the advantages that: compared with the prior art, the heat pipes are arranged between the battery modules which are arranged in parallel, the heat pipes are arranged in the external cooling box, so that the heat pipes can quickly take away the heat among the battery modules, the assembly efficiency of the battery modules is improved, the temperature of the battery is greatly reduced, the consistency and the output stability of the battery in the battery modules are improved, and the service life of the battery is prolonged.
Drawings
FIG. 1 is a schematic diagram of a system according to an embodiment of the present invention;
FIG. 2 is a longitudinal sectional view of a portion of FIG. 1;
FIG. 3 is a schematic view of the connection between the steel plate with the sealing groove and the heat pipe in FIG. 1;
fig. 4 is a right side view of fig. 3.
Detailed Description
The technical solution of the present invention is described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 to 4, the heat pipe-based large-scale battery module integrated box cooling system of the present invention includes a battery module integrated box, a cooling box, and a heat pipe for guiding heat in the battery module integrated box to the cooling box to dissipate heat, wherein the battery module integrated box includes an integrated box housing with an open top, a battery module disposed in the box housing, and a box top plate capable of sealing the top of the box housing, and the battery modules are disposed in parallel; the cooling box body comprises a cooling box body shell with an opening at the top, a plurality of groups of cooling plates, a spray header and a plurality of spray headers, wherein the cooling plates are fixedly connected with the cooling box body shell; the heat pipe is arranged between the battery modules which are arranged in parallel through one end (called as a heat absorption end) of a heat pipe mounting bracket fixed on the integrated box body shell and the cooling box body shell, and the other end (called as a cooling end) of the heat pipe mounting bracket is arranged on the cooling plate.
As shown in fig. 1, two battery module integrated boxes can be symmetrically arranged on two sides of each cooling box, and the corresponding spray header and the corresponding cooling plate are also symmetrically arranged. The shell of the cooling box body is a waterproof semi-closed shell.
As shown in fig. 2 to 4, the side plates of the integrated box casing adjacent to the cooling box are made of louver steel plates, so that on one hand, heat can be dissipated, and on the other hand, the heat pipe and the heat pipe mounting bracket can penetrate through the gap of the louver steel plates, thereby facilitating the arrangement of the heat pipe mounting bracket and the heat pipe. The side plate of the cooling box body shell adjacent to the integrated box body is a steel plate which is provided with a through hole with a sealing groove, and the heat pipe penetrates through the through hole with the sealing groove and is sealed by sealing colloid.
The heat pipe is a flexible flat heat pipe, so that the space is saved, and the volume of the battery module integrated box body is reduced; the heat pipe and the heat pipe mounting bracket can be of an integrated structure, so that the reliability of a product can be improved; still be equipped with heat conduction silica gel layer (heat conduction silica gel model is 30 in this embodiment) outside the heat pipe, can set up the heat conduction silica gel layer in the department of closely pasting with the battery monomer, heat conduction effect can be strengthened on the heat conduction silica gel layer to isolated battery and heat pipe when battery module leaks electricity, prevent that the power from revealing away through the heat pipe. The heat pipes can be horizontally or obliquely inserted, the horizontally arranged heat pipes are wick heat pipes, the obliquely inserted heat pipes are gravity heat pipes, the heat absorption ends of the wick heat pipes can be arranged in a higher-temperature area in the integrated box body, and the heat absorption ends of the gravity heat pipes are arranged in a lower area of the box body; the gravity heat pipe is obliquely inserted and placed with maximized efficiency, the heat absorption end of the horizontally placed heat pipe is used for conducting heat on the middle upper part of the integrated box body, the heat absorption end of the horizontally placed heat pipe is used for conducting heat on the middle lower part of the integrated box body, the horizontally placed heat pipe and the cooling end of the obliquely inserted heat pipe are connected with the same cooling plate, heat absorption efficiency of the heat absorption end is improved through the two placing modes, and therefore cooling efficiency of the system is improved.
The heat pipes are arranged in a crossed mode, the liquid absorption core heat pipe is horizontally arranged among the battery monomers, and the gravity heat pipe is obliquely arranged upwards.
And a cavity for accommodating the battery module is formed between the adjacent heat pipe mounting brackets, and the heat absorption end of the liquid absorption core heat pipe is positioned in the central upper area with higher temperature in the box body.
The heat pipe is horizontally or obliquely arranged among the battery modules which are arranged in parallel through a heat pipe bracket connected on the shell, the heat absorption end is arranged at the higher side of the heat pipe, namely a heat concentration area, and the cooling end is arranged in the cooling box body and is connected with an external spraying device through a cooling plate. The spray device comprises a spray header and a plurality of spray heads.
The cooling plate is provided with a groove corresponding to the shape of the heat pipe at the position corresponding to the connection of the heat pipe, and a section of pipeline at the cooling end of the heat pipe is embedded in the groove, so that the contact area between the heat pipe and the cooling plate can be increased, and the heat transfer efficiency is improved; the cooling plate can be connected with the cooling box shell through screws or a clamping structure; the surface of the cooling plate is subjected to fine corrugation treatment, so that the liquid flow on the surface of the cooling plate is accelerated, and the heat exchange is enhanced.
The spraying device is characterized in that a plurality of spraying heads are arranged on one side of the spraying device and can be connected with a plurality of groups of cooling plates, the spraying device is placed in the semi-closed shell, and a plurality of spraying devices are supplied with water by a large water tank in a centralized manner. The cooling liquid in the spraying device is cooling oil or spraying water cooling.
In this embodiment, the heat pipes are obliquely arranged between the battery modules arranged in parallel through the heat pipe brackets connected to the casing (the integrated box casing and the cooling box casing), the heat absorbing end is arranged in the heat concentration area, the cooling end is arranged inside the cooling box, and the internal heat pipes can take away heat between the battery modules more quickly by using the external cooling box. Through alternately setting up the heat pipe between the battery module of placing in parallel, utilize external cooling box and built-in heat pipe can be faster must take away the heat between the battery module, promote the assembly efficiency of battery module, greatly reduce the battery temperature, stability when promoting the battery uniformity in the battery module and exporting, extension battery life, and derive the cooling plate with the produced heat of battery module through the heat pipe, then take away the heat through coolant liquid (spray set), in order to reach radiating purpose.
Claims (8)
1. The utility model provides a large-scale battery module collection box cooling system based on heat pipe which characterized in that: the battery module integrated box comprises an integrated box shell with an open top, a battery module arranged in the box shell and a box top plate capable of sealing the top of the box shell, the cooling box comprises a cooling box shell with an open top, a plurality of groups of cooling plates and a spraying device, the cooling plates are fixedly connected with the cooling box shell, the spraying device is fixed in the cooling box shell, and the spraying device is correspondingly provided with a plurality of groups of cooling plates; one end of a heat pipe is arranged between the battery modules which are arranged in parallel through a heat pipe mounting bracket fixed on the integrated box body shell and the cooling box body shell, and the other end of the heat pipe is arranged on the cooling plate;
the heat pipes are horizontally or obliquely inserted, the liquid absorption core heat pipes are horizontally arranged, the gravity heat pipes are obliquely inserted, the heat absorption ends of the liquid absorption core heat pipes and the heat absorption ends of the gravity heat pipes are respectively arranged in the upper area and the lower area of the integrated box body, the cooling ends of the liquid absorption core heat pipes and the gravity heat pipes are connected with the same cooling plate, and the liquid absorption core heat pipes and the gravity heat pipes are arranged in a crossed mode;
the battery module integration box is two, and the symmetry sets up in cooling box both sides, and every battery module integration box corresponds the multiunit cooling plate respectively.
2. The heat pipe-based large-scale battery module integration box cooling system according to claim 1, wherein: the heat pipe is a flexible flat heat pipe.
3. The heat pipe-based large-scale battery module integration box cooling system according to claim 1, wherein: the heat pipe and the heat pipe mounting bracket are of an integrated structure.
4. The heat pipe-based large-scale battery module integration box cooling system according to claim 1, wherein: and a heat-conducting silica gel layer is also arranged outside the heat pipe.
5. The heat pipe-based large-scale battery module integration box cooling system according to claim 1, wherein: the spraying device comprises a spraying pipe and a plurality of spraying heads, and a group of cooling plates are correspondingly arranged below each spraying head.
6. The heat pipe-based large-scale battery module integration box cooling system according to claim 1, wherein: the surface of the cooling plate is subjected to fine corrugation treatment and is provided with a groove for installing a heat pipe cooling end, one section of pipeline of the heat pipe cooling end is embedded in the groove, and the cooling plate is connected with the cooling box shell through a screw or a clamping structure.
7. The heat pipe-based large-scale battery module integration box cooling system according to claim 1, wherein: the cooling liquid in the spraying device is cooling oil or cooling water.
8. The heat pipe-based large-scale battery module integration box cooling system according to claim 1, wherein: the side plates of the integrated box body shell adjacent to the cooling box body are made of shutter steel plates, the side plates of the integrated box body shell adjacent to the cooling box body are made of steel plates, through holes with sealing grooves are formed in the side plates, and the heat pipe penetrates through the through holes with the sealing grooves and is sealed through sealing glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810832795.0A CN109066007B (en) | 2018-07-26 | 2018-07-26 | Large-scale battery module integration box cooling system based on heat pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810832795.0A CN109066007B (en) | 2018-07-26 | 2018-07-26 | Large-scale battery module integration box cooling system based on heat pipe |
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| CN109066007A CN109066007A (en) | 2018-12-21 |
| CN109066007B true CN109066007B (en) | 2020-06-30 |
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| CN201810832795.0A Active CN109066007B (en) | 2018-07-26 | 2018-07-26 | Large-scale battery module integration box cooling system based on heat pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113675494B (en) * | 2021-07-12 | 2023-10-24 | 东风汽车集团股份有限公司 | Heat pipe fin type cooling structure applied to power battery module |
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| CN205051962U (en) * | 2015-09-30 | 2016-02-24 | 深圳市昶东鑫线路板有限公司 | Efficient thick copper heating panel |
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| CN108281736A (en) * | 2018-01-31 | 2018-07-13 | 陈攀攀 | A kind of cooling device that rectangle power battery is stacked |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000353536A (en) * | 1999-06-09 | 2000-12-19 | Nippon Telegr & Teleph Corp <Ntt> | Fuel cell and its operating method |
| CN107768773B (en) * | 2017-10-31 | 2023-04-28 | 华南理工大学 | Efficient thermal management system and control method for large power battery |
| CN108206316A (en) * | 2018-02-08 | 2018-06-26 | 华南理工大学 | A kind of heat pipe and the battery modules heat management device of phase-change material coupling |
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2018
- 2018-07-26 CN CN201810832795.0A patent/CN109066007B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1284160A (en) * | 1998-01-30 | 2001-02-14 | 株式会社日立制作所 | Heat pipe type cooling device, method of producing same and cooling plate for heat pipe type cooling device |
| CN202217748U (en) * | 2011-07-05 | 2012-05-09 | 惠州比亚迪电池有限公司 | Battery heat radiation device and battery pack |
| CN205051962U (en) * | 2015-09-30 | 2016-02-24 | 深圳市昶东鑫线路板有限公司 | Efficient thick copper heating panel |
| CN106602174A (en) * | 2017-01-18 | 2017-04-26 | 广东合新材料研究院有限公司 | Spraying liquid-cooling system of large-power battery pack |
| CN106876823A (en) * | 2017-03-15 | 2017-06-20 | 苏州安靠电源有限公司 | Fountain heats refrigerating integrated safety battery bag |
| CN108281736A (en) * | 2018-01-31 | 2018-07-13 | 陈攀攀 | A kind of cooling device that rectangle power battery is stacked |
| CN108215923A (en) * | 2018-02-08 | 2018-06-29 | 中国科学院电工研究所 | A kind of thermal management system of electric automobile |
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