CN210245680U - Hybrid thermal management system of separated power battery - Google Patents
Hybrid thermal management system of separated power battery Download PDFInfo
- Publication number
- CN210245680U CN210245680U CN201920938454.1U CN201920938454U CN210245680U CN 210245680 U CN210245680 U CN 210245680U CN 201920938454 U CN201920938454 U CN 201920938454U CN 210245680 U CN210245680 U CN 210245680U
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- Prior art keywords
- copper
- change material
- foamy
- composite phase
- phase change
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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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- 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
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Abstract
The utility model relates to a hybrid vehicle technical field, specific disconnect-type power battery hybrid thermal management system that says so, including power lithium cell group, foamy copper/paraffin composite phase change material and copper, foamy copper/paraffin composite phase change material includes soft foamy copper of polyurethane and fills the phase change material in the soft foamy copper of polyurethane, one side of copper is fixed in the biggest side of each lithium cell volume area, the opposite side of copper is fixed between foamy copper/paraffin composite phase change material; still include radiating fin, radiating fin fixes the one side at the copper, the utility model discloses an useful part is, simple structure, low in manufacturing cost utilizes the copper not only to increase with the area of contact on battery surface, makes the temperature distribution on battery surface more even, has still separated heat source and phase change material module, has overcome a series of safety problems that phase change material leaked and causes, has better heat dissipation function.
Description
Technical Field
The utility model relates to a hybrid vehicle technical field specifically is a disconnect-type power battery mixes thermal management system.
Background
The battery thermal management system has a crucial influence on the power performance of the new energy automobile, and the effective cooling performance can improve the working environment and working performance of the battery, so that the driving safety and reliability are ensured. Researchers at home and abroad carry out a great deal of research on the power battery cooling technology and battery thermal management, and mainly carry out research and improvement on the technologies of air cooling, water cooling, phase-change material cooling and heat pipe cooling.
In the prior art, phase change materials are filled in gaps between batteries or around the batteries, and when heat generated by the batteries during charging and discharging exceeds the melting point of the phase change materials, the phase change materials are leaked to influence the relevant performance of the battery pack, which causes a series of problems. How to invent a separated power battery thermal management system combining an ultrathin copper plate and a composite phase-change material to solve the problems becomes a problem to be solved urgently by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
In order to make up the above deficiency, the present invention provides a hybrid thermal management system for a split power battery, which aims to improve the problems existing in the above background art.
The technical scheme of the utility model is that: a separated power battery hybrid thermal management system comprises a power lithium battery pack, a foamy copper/paraffin composite phase-change material and a copper plate, wherein the foamy copper/paraffin composite phase-change material comprises polyurethane soft foamy copper and a phase-change material filled in the polyurethane soft foamy copper, the power lithium battery pack comprises a plurality of power lithium batteries, the number of the foamy copper/paraffin composite phase-change material corresponds to the number of the arrangement lines of the power lithium batteries one by one, the copper plate is an ultrathin copper plate, the occupied space of the system is saved, one side of the copper plate is fixed on the side surface with the largest area of each lithium battery body, and the other side of the copper plate is fixed between the foamy copper/paraffin composite phase-change materials; the battery is characterized by further comprising heat radiating fins, wherein the heat radiating fins are fixed on one side of the copper plate, one part of heat generated by the battery is absorbed by the phase-change material through the transmission of the copper plate, and the other part of the heat is transmitted to the external environment through the heat radiating fins.
Preferably, the power lithium battery is a lithium ion single battery.
Preferably, the phase change material filled in the soft polyurethane foam copper in the foam copper/paraffin composite phase change material is paraffin, so that the problem of low heat conductivity coefficient of the paraffin phase change material is solved.
Preferably, the foam copper/paraffin composite phase change material is arranged in a square block shape with a flat surface.
Preferably, the thicknesses of the copper foam/paraffin wax composite phase change material and the power lithium battery are the same.
Preferably, one side of the copper plate is tightly attached to the side face with the largest area of each lithium battery body through high-temperature glue, and the other side of the copper plate is bonded between the copper foam/paraffin composite phase-change materials through the high-temperature glue.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a hybrid thermal management system of disconnect-type power battery utilizes the copper as heat transmission's media, has increased with the area of contact on battery surface, the better heat that evenly draws the battery production, reduces because of the too big thermal runaway problem that arouses of local difference in temperature. During the charging and discharging processes of the lithium ion battery, a large amount of heat can be generated by the electrochemical reaction and the ohmic effect existing inside the lithium ion battery, a part of the heat is extracted from one side of the copper plate and is transferred to the phase change material outside the battery module, and the heat is absorbed and stored by the phase change material and is used for keeping the temperature of the power battery system in a proper range; the other part of the phase change material is transmitted to the external environment through the radiating fins, so that the phase change speed of the phase change material is reduced, and the battery thermal management system can work normally in the long-time discharging process of the battery. Due to the separated design, the phase-change material does not need to be filled into the battery, a series of safety problems caused by leakage of the molten phase-change material are avoided, and meanwhile, the heat management system is conveniently combined with other heat management modes, so that the heat dissipation performance of the system is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1-a power lithium battery pack; 2-copper foam/paraffin wax composite phase change material; 3-copper plate; 4-radiating fins.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a separated power battery hybrid thermal management system comprises a power lithium battery pack 1, a foamy copper/paraffin composite phase-change material 2 and a copper plate 3, wherein the foamy copper/paraffin composite phase-change material 2 comprises polyurethane soft foamy copper and a phase-change material filled in the polyurethane soft foamy copper, the foamy copper/paraffin composite phase-change material 2 is arranged into a square shape with a smooth surface, and the phase-change material filled in the polyurethane soft foamy copper in the foamy copper/paraffin composite phase-change material 2 is paraffin, so that the problem of low heat conductivity coefficient of the paraffin phase-change material is solved;
the power lithium battery pack 1 comprises a plurality of power lithium batteries, the power lithium batteries are lithium ion single batteries, and the thicknesses of the foamy copper/paraffin composite phase change material 2 and the power lithium batteries are the same; the setting number of the foam copper/paraffin composite phase change materials 2 corresponds to the arrangement number of lines of the power lithium batteries one by one;
the copper plate 3 is an ultrathin copper plate, so that the occupied space of the system is saved, one side of the copper plate 3 is fixed on the side surface with the largest area of each lithium battery body, the other side of the copper plate 3 is fixed between the foamy copper/paraffin composite phase-change materials 2, one side of the copper plate 3 is tightly attached to the side surface with the largest area of each lithium battery body through high-temperature glue, and the other side of the copper plate 3 is bonded between the foamy copper/paraffin composite phase-change materials 2 through the high-temperature glue;
the battery is characterized by further comprising heat radiating fins 4, wherein the heat radiating fins 4 are fixed on one side of the copper plate 3, one part of heat generated by the battery is absorbed by the phase-change material through the transmission of the copper plate, and the other part of the heat is transmitted to the external environment through the heat radiating fins.
The paraffin is pressurized and filled into the polyurethane soft foam copper in a molten liquid state, the disadvantage of low heat conductivity coefficient of the paraffin phase-change material is made up, the copper plate 3 is used as a medium for heat transmission, the contact area with the surface of the battery is increased, and the nonuniformity of the surface temperature distribution of the battery is reduced. During the charging and discharging processes of the lithium ion battery, a large amount of heat can be generated by the electrochemical reaction and the ohmic effect existing inside the lithium ion battery, a part of the heat is extracted through one side of the copper plate and is transferred to the foamy copper/paraffin composite phase-change material 2 outside the battery module, and the characteristic that the foamy copper/paraffin composite phase-change material 2 keeps unchanged or has a small change range but can absorb or release a large amount of latent heat during the phase change process is utilized to keep the temperature of the power battery system within a proper range; the other part of the heat is transmitted to the external environment through the radiating fins 4, so that the phase change speed of the foamy copper/paraffin composite phase change material 2 is reduced, and the battery heat management system can also work normally in the long-time discharging process of the battery.
The basic principles, main features and advantages of the present invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a hybrid thermal management system of disconnect-type power battery which characterized in that: the power lithium battery pack comprises a power lithium battery pack (1), a foamy copper/paraffin composite phase-change material (2) and a copper plate (3), wherein the foamy copper/paraffin composite phase-change material (2) comprises polyurethane soft foamy copper and a phase-change material filled in the polyurethane soft foamy copper, the power lithium battery pack (1) comprises a plurality of power lithium batteries, the set number of the foamy copper/paraffin composite phase-change material (2) corresponds to the number of the arrangement lines of the power lithium batteries one by one, the copper plate (3) is an ultrathin copper plate, one side of the copper plate (3) is fixed on the side surface with the largest area of each lithium battery body, and the other side of the copper plate (3) is fixed between the foamy copper/paraffin composite phase-change material; the copper plate heat dissipation device is characterized by further comprising heat dissipation fins (4), wherein the heat dissipation fins (4) are fixed on one side of the copper plate (3).
2. The separated power battery hybrid thermal management system according to claim 1, wherein: the power lithium battery is a lithium ion single battery.
3. The separated power battery hybrid thermal management system according to claim 1, wherein: the phase change material filled in the polyurethane soft foam copper in the foam copper/paraffin composite phase change material (2) is paraffin.
4. The separated power battery hybrid thermal management system according to claim 1, wherein: the foamy copper/paraffin composite phase-change material (2) is arranged in a square block shape with a smooth surface.
5. The separated power battery hybrid thermal management system according to claim 1, wherein: the thickness of the foam copper/paraffin composite phase change material (2) is the same as that of the power lithium battery.
6. The separated power battery hybrid thermal management system according to claim 1, wherein: one side of the copper plate (3) is tightly attached to the side face with the largest area of each lithium battery body through high-temperature glue, and the other side of the copper plate (3) is bonded between the foamy copper/paraffin composite phase-change materials (2) through the high-temperature glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920938454.1U CN210245680U (en) | 2019-06-19 | 2019-06-19 | Hybrid thermal management system of separated power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920938454.1U CN210245680U (en) | 2019-06-19 | 2019-06-19 | Hybrid thermal management system of separated power battery |
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| Publication Number | Publication Date |
|---|---|
| CN210245680U true CN210245680U (en) | 2020-04-03 |
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| CN201920938454.1U Expired - Fee Related CN210245680U (en) | 2019-06-19 | 2019-06-19 | Hybrid thermal management system of separated power battery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110112508A (en) * | 2019-06-19 | 2019-08-09 | 佛山科学技术学院 | A kind of separate type power battery mixing heat management system |
| DE202023101569U1 (en) | 2023-03-28 | 2023-04-27 | Yousef Ahamd Kareri | Intelligent system for lithium battery power management through heat dissipation model and controlling battery internal leakage |
-
2019
- 2019-06-19 CN CN201920938454.1U patent/CN210245680U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110112508A (en) * | 2019-06-19 | 2019-08-09 | 佛山科学技术学院 | A kind of separate type power battery mixing heat management system |
| DE202023101569U1 (en) | 2023-03-28 | 2023-04-27 | Yousef Ahamd Kareri | Intelligent system for lithium battery power management through heat dissipation model and controlling battery internal leakage |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200403 Termination date: 20210619 |