CN214384770U - Battery heat exchanger, battery pack and new energy automobile - Google Patents
Battery heat exchanger, battery pack and new energy automobile Download PDFInfo
- Publication number
- CN214384770U CN214384770U CN202120361310.1U CN202120361310U CN214384770U CN 214384770 U CN214384770 U CN 214384770U CN 202120361310 U CN202120361310 U CN 202120361310U CN 214384770 U CN214384770 U CN 214384770U
- Authority
- CN
- China
- Prior art keywords
- battery
- heat exchanger
- header
- battery heat
- pipelines
- 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.)
- Active
Links
- 238000007599 discharging Methods 0.000 claims abstract description 23
- 239000011324 bead Substances 0.000 claims 1
- 238000012546 transfer Methods 0.000 abstract description 9
- 239000012782 phase change material Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 4
- 238000005219 brazing Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The application relates to a battery heat exchanger, a battery pack and a new energy automobile. The battery heat exchanger comprises a feeding header and a discharging header which are arranged at intervals, a plurality of pipelines are arranged between the feeding header and the discharging header, one ends of the pipelines are connected with the feeding header, the other ends of the pipelines are connected with the discharging header, and the pipelines are arranged in gaps among batteries. This application has the advantage that heat transfer area is big, heat exchange efficiency is high, and the heat exchanger is located the space between the battery simultaneously, does not occupy extra space to can place more batteries in the battery box.
Description
Technical Field
The application relates to a battery heat exchanger, a battery pack and a new energy automobile, and belongs to the technical field of heat exchange.
Background
Due to the increasingly serious environmental problems and energy crisis, new energy vehicles having outstanding advantages in terms of reducing petroleum resource consumption, reducing pollutant emissions, and the like have received global attention in recent years, and electric vehicles are the most representative of new energy vehicles. The power battery pack is used as a power source of the electric automobile, and the quality of the working performance of the power battery pack directly determines the whole performance of the electric automobile. When the power battery pack works in a high-temperature environment or carries out heavy-current charging and discharging, the temperature of the battery rises rapidly, the cycle life of the battery is shortened, and even the safety problems of battery ignition, explosion and the like can be caused. On the other hand, if there is a large temperature difference between the battery cells in the power battery pack, the overall performance of the battery pack will be reduced. In order to control the temperature of the power battery within a proper temperature range and ensure the uniformity of the temperature of the battery, a reasonable battery thermal management system needs to be designed for the power battery pack of the electric automobile.
With the development of battery thermal management technology, various battery thermal management systems are formed, and can be classified into air medium-based battery thermal management systems, liquid medium-based battery thermal management systems, phase change material-based battery thermal management systems and other battery thermal management systems according to different heat dissipation media of the system. The air medium-based battery thermal management system is a thermal management system which enables low-temperature air to flow through the surface of a battery to exchange heat with the battery through natural convection or forced convection so as to cool the battery. A battery thermal management system based on a liquid medium is a thermal management system that cools a battery by bringing a liquid into direct or indirect contact with the battery and performing heat exchange. The battery thermal management system based on the phase-change material is a thermal management system which coats a battery with the phase-change material, and when the phase-change material absorbs heat of the battery and changes phase, the temperature of the phase-change material is maintained at a certain constant value so as to cool the battery. Other battery thermal management systems include thermal management systems that implement cooling of the battery by heat pipes, thermoelectric materials, or a combination of heat dissipation approaches.
SUMMERY OF THE UTILITY MODEL
The purpose of this application is to design a battery heat exchanger, battery pack and new energy automobile, and battery heat exchanger wherein is applicable to natural convection or forces the convection current to carry out the heat transfer to the battery based on air medium, has advantages such as heat transfer area is big, heat exchange efficiency height, and the heat exchanger is located the space between the battery simultaneously, does not occupy extra space to can put into more batteries in the battery box.
The application relates to a battery heat exchanger, including feeding header and ejection of compact header that the interval set up the feeding header with be provided with many pipelines between the ejection of compact header, the one end of pipeline is connected the feeding header, the other end of pipeline is connected ejection of compact header, the pipeline sets up in the space between the battery.
Wherein, the pipeline is transversely provided with fins, and the pipeline and the fins are arranged in gaps between adjacent batteries; the heat exchange surface of the battery heat exchanger is attached to the battery surface; the feed header is disposed above the discharge header; the fins are provided with through holes matched with the pipelines, and flanges are arranged at the axial matching positions of the pipelines; holes for heat exchange are also arranged on the fins; the outer ring of the fin is also provided with a turned edge.
Wherein the feed header and the discharge header connect a plurality of parallel lines; alternatively, a plurality of parallel lines are grouped in series, the feed header and the discharge header connecting the lines already grouped in series.
The present application also relates to a battery assembly comprising a battery array formed of a plurality of batteries and a battery heat exchanger, characterized in that the battery heat exchanger is a battery heat exchanger as described above.
The application also relates to a new energy automobile, which comprises the battery assembly.
The battery heat exchanger of the application is arranged in the gap between the batteries, the effective space of the battery box is not additionally occupied, more batteries can be contained in the battery box in the same space, and the endurance mileage of the automobile is increased. This application heat exchanger and battery heat-transfer face realize the cooperation contact, when having increased battery heat transfer area, reduced new energy automobile and jolted the impact of battery to the heat exchanger at the process of traveling, strengthened the reliability of heat exchanger.
Drawings
Fig. 1 shows a schematic layout of the piping in the battery heat exchanger of the present application.
Fig. 2 shows a perspective view of the battery heat exchanger of the present application.
Fig. 3 shows a cross-sectional view of the piping in the battery heat exchanger of the present application.
Fig. 4 shows a schematic of a fin in a battery heat exchanger of the present application.
Fig. 5 shows a schematic of the feed and discharge headers in the battery heat exchanger of the present application.
Fig. 6 shows a schematic diagram of a tube with fins in the battery heat exchanger of the present application.
Fig. 7 shows another embodiment of the battery heat exchanger of the present application.
Detailed Description
To make the objects, technical solutions and advantages of the present application more apparent, embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
As shown in fig. 1-2, the battery heat exchanger of the present application includes a feeding header 3 and a discharging header 4 arranged at intervals, a plurality of pipelines 1 are arranged between the feeding header 3 and the discharging header 4, one end of each pipeline 1 is connected with the feeding header 3, the other end of each pipeline 1 is connected with the discharging header 4, and the pipelines 1 are arranged in the gaps of the batteries. In order to increase the heat exchange area, fins 2 may also be arranged transversely on the tube 1. Preferably, the heat transfer surface of the battery heat exchanger of the application is attached to the battery surface, so that most of the area of the cylindrical surface of the battery can exchange heat with the heat transfer surface, and the heat transfer amount is increased. In the present application, the feeding header and the discharging header may be disposed at upper and lower positions of the battery, may be disposed at left and right positions of the battery, or may be disposed at intervals in other manners.
The tube 1 and the fin 2 of the battery heat exchanger are arranged in the gap between adjacent batteries in the battery array. The heat exchange medium in the heat exchanger flows circularly, and is in contact with the battery through the pipeline 1 and the fin 2 of the heat exchanger to conduct heat exchange, and natural convection or forced convection heat exchange can also be conducted through air between the pipeline 1 and the fin 2 of the heat exchanger and the battery. Preferably, the feeding header 3 in this application is arranged above the discharging header 4, the heat exchange medium flowing in the pipeline flows from top to bottom, and because the hot air generated by the batteries moves upwards, the heat exchange medium can perform reverse heat exchange with the heat generated by the batteries, so that the heat exchange efficiency is improved.
The heat exchange medium flows into the heat exchanger from the feed header 3 and outputs the energy of the heat exchange medium through the pipe 1 and the fins 2, and then the heat exchange medium enters the discharge header 4 and flows out of the heat exchanger. Further, in order to realize the uniform distribution and circulation flow of the heat exchange medium in the pipeline 1 of the heat exchanger, baffle plates 5 can be arranged in the feeding header 3 and the feeding header 4. In order to further improve the heat exchange efficiency between the heat exchange medium and the pipeline, the channel in the pipeline 1 may be threaded in the axial direction.
In one embodiment, the shape of the tube 1 can be matched to the gap formed between the cells as shown in fig. 3, wherein the left side of fig. 3 shows a schematic view of a single-channel tube and the right side shows a schematic view of a multi-channel tube. So set up, when increase pipeline heat transfer area, form good contact with the battery and reduce the air thermal resistance, improve heat exchange efficiency. Meanwhile, the clearance between the pipeline and the battery is reduced, and impact damage caused by bumping and vibration is prevented.
The fins 2 may be made of a thin metal sheet such as copper, aluminum, or stainless steel, and have good heat conduction performance. As shown in fig. 4, the fin 2 is provided with a through hole 21 that is fitted to the pipe 1, and the fin 2 and the pipe 1 can be in good thermal contact with each other by interference fit, brazing, bonding, or the like. The shape of the fin 2 may be circular, elliptical, polygonal, or the like. The fins 2 can be densely arranged in the axial direction of the pipeline 1, the outer ring of each fin 2 can be provided with a turned edge 22, the heat exchange area is increased, the fins 2 can form a whole with high mechanical strength, the impact of the battery on the heat exchanger fins caused by bumping vibration is increased, and meanwhile, the impact damage of the fins 2 on the battery is also prevented. The fins 2 may be uniformly arranged at equal intervals in the axial direction of the pipeline 1, or may be arranged at unequal intervals according to the basic knowledge that hot air rises and cold air falls. The fins 2 are provided with flanges 24 at the axial matching positions of the pipelines 1, the flanges can further increase the contact area of the fins 2 and the pipelines 1, and meanwhile, the axial distance between the fins 2 in the pipelines 1 can be accurately controlled through the height of steps formed by the flanges, as shown in fig. 6.
Preferably, as shown in fig. 4, the fin 2 may further include a hole 23, so that when axial temperature unevenness occurs in the natural convection heat exchanger, heat exchange can be further performed. When forced convection, the air flow can exchange heat with the fins 2 through the holes.
In the application, the feeding collecting pipe 3 and the discharging collecting pipe 4 can be made of metal materials such as copper, aluminum and stainless steel, a plurality of connecting holes 31 are formed in the feeding collecting pipe 3 and the discharging collecting pipe 4, and the shapes of the connecting holes 31 are matched with the axial section shape of the pipeline 1. The axial cross-sectional shapes of the feed header 3 and the discharge header 4 may be circular, elliptical, polygonal, etc. The feeding header 3, the discharging header 4 and the pipeline 1 can form a good sealing structure through processing modes such as brazing and the like, and the heat exchange medium is prevented from leaking through a fit clearance between the feeding header and the discharging header.
Because the feeding manifold 3 and the discharging manifold 4 are arranged at two ends of the battery, in order to prevent the feeding manifold 3 and the discharging manifold 4 from forming short-circuit connection on the battery electrodes, air insulation can be formed at the contact positions of the feeding manifold 3 and the discharging manifold 4 and the battery by using a space distance or insulation materials can be used for isolation. The feeding manifold 3 and the discharging manifold 4 can be straight pipes or S-shaped pipes so as to adapt to the arrangement of the pipeline 1 between the battery modules. Further, as shown in fig. 5, in order to reduce the space occupied in the cell box by the size increase caused by the winding process of the feeding header 3 and the discharging header 4, a circular arc transition connection mode can be adopted, and a good sealing structure is formed at the connection position by a brazing mode.
In the application, the feeding header 3 and the discharging header 4 can connect a plurality of parallel pipelines 1 in a sealing way in an S-shaped roundabout way, or connect a plurality of parallel pipelines 1 in series to form a group, and then connect the pipelines 1 which are connected in series to form a group in a sealing way by using the feeding header 3 and the discharging header 4, as shown in FIG. 7.
The battery heat exchanger further increases heat exchange efficiency, can reduce useless power consumption of the limited electric energy of the new energy automobile, and further increases the endurance mileage of the new energy automobile.
The present application also relates to a battery assembly comprising a battery array formed of a plurality of batteries and a battery heat exchanger as described above, wherein the conduits of the battery heat exchanger are disposed within the interstices formed between the batteries. The battery pack of the application has the advantages that the improvement point is the battery heat exchanger, other parts can adopt the prior art, and the description is omitted.
The application also relates to a new energy automobile, which is provided with a battery assembly comprising the battery heat exchanger. The new energy automobile's of this application improvement point lies in battery heat exchanger, and other parts can adopt prior art, no longer describe repeatedly.
Although the embodiments disclosed in the present application are described above, the descriptions are only for the convenience of understanding the present application, and are not intended to limit the present application. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims.
Claims (10)
1. The battery heat exchanger is characterized by comprising a feeding header and a discharging header which are arranged at intervals, wherein a plurality of pipelines are arranged between the feeding header and the discharging header, one ends of the pipelines are connected with the feeding header, the other ends of the pipelines are connected with the discharging header, and the pipelines are arranged in gaps among batteries.
2. The battery heat exchanger of claim 1 wherein the tubes have fins disposed laterally thereon, the tubes and fins being disposed in spaces between adjacent batteries.
3. The battery heat exchanger of claim 1 or 2, wherein the heat exchange surface of the battery heat exchanger is attached to the battery face.
4. The battery heat exchanger of claim 1 or 2, wherein the feed header is disposed above the discharge header.
5. The battery heat exchanger according to claim 2, wherein the fin is provided with a through hole matched with the pipeline, and the fin is provided with a flanging at the axial matching position of the pipeline.
6. The battery heat exchanger of claim 5, wherein the fins are further provided with holes for heat exchange.
7. The battery heat exchanger according to claim 2, 5 or 6, wherein the outer ring of the fin is further provided with a bead.
8. The battery heat exchanger of claim 1 or 2 or 5 or 6 wherein the feed header and the discharge header connect a plurality of parallel tubes; or,
a plurality of parallel lines are grouped in series, and the feed header and the discharge header connect the lines that have been grouped in series.
9. A battery assembly comprising a battery array of a plurality of batteries and a battery heat exchanger, wherein the battery heat exchanger is a battery heat exchanger according to any one of claims 1 to 8.
10. A new energy automobile, characterized by comprising the battery assembly according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120361310.1U CN214384770U (en) | 2021-02-09 | 2021-02-09 | Battery heat exchanger, battery pack and new energy automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120361310.1U CN214384770U (en) | 2021-02-09 | 2021-02-09 | Battery heat exchanger, battery pack and new energy automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214384770U true CN214384770U (en) | 2021-10-12 |
Family
ID=77992328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120361310.1U Active CN214384770U (en) | 2021-02-09 | 2021-02-09 | Battery heat exchanger, battery pack and new energy automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214384770U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113054279A (en) * | 2021-02-09 | 2021-06-29 | 杭州易斐换热技术有限公司 | Battery heat exchanger and preparation method thereof |
-
2021
- 2021-02-09 CN CN202120361310.1U patent/CN214384770U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113054279A (en) * | 2021-02-09 | 2021-06-29 | 杭州易斐换热技术有限公司 | Battery heat exchanger and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108258367B (en) | Snakelike flat tube liquid cooling battery module | |
| CN109066002B (en) | Power battery automatic control heat management system based on phase change energy storage and thermoelectric effect | |
| CN107946690A (en) | Power battery pack and power battery packet system with hot superconductive heat exchanger | |
| CN105789733A (en) | Thermal management device and power source device | |
| CN214378603U (en) | Heat management device for lithium ion battery of electric vehicle | |
| CN110854465A (en) | Battery box heat management system considering heat recovery and control method thereof | |
| CN114094226A (en) | Interlayer type power battery pack liquid cooling system | |
| CN106785236B (en) | Thermal management system and method for cylindrical battery pack | |
| CN214384770U (en) | Battery heat exchanger, battery pack and new energy automobile | |
| CN111416179A (en) | Lithium ion battery thermal management device combining inner fins and forced air cooling | |
| CN109273797B (en) | Battery module thermal management device based on phase change material and heat pipe cooperative heat dissipation | |
| CN115692929A (en) | Novel battery liquid cooling plate heat dissipation device of indirect contact type phase change material coupling finned tube | |
| CN215771274U (en) | Snakelike passageway radiator of cylindrical lithium cell of electric automobile | |
| CN213752811U (en) | Power battery charging and discharging cooling system, battery and vehicle | |
| CN112582703B (en) | Novel battery cooling structure based on coupling of heat pipe and liquid cooling plate | |
| CN220652125U (en) | Battery cooling structure and battery module | |
| CN113054279A (en) | Battery heat exchanger and preparation method thereof | |
| CN210533097U (en) | Finned tube radiator | |
| CN109599640B (en) | Liquid heat management scheme for cylindrical power battery module | |
| CN106602170A (en) | Variable contact-type battery heat management system | |
| CN217655950U (en) | Battery core, battery module and vehicle | |
| CN212340032U (en) | Power battery assembly and heat exchanger thereof | |
| CN210379346U (en) | Liquid cooling plate of liquid cooling battery system | |
| CN214411317U (en) | Spiral battery heat exchanger, battery pack and new energy automobile | |
| CN110224196B (en) | Liquid cooling structure of square power battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |