CN212848578U - Liquid cooling battery pack for electric automobile - Google Patents
Liquid cooling battery pack for electric automobile Download PDFInfo
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- CN212848578U CN212848578U CN202021658473.8U CN202021658473U CN212848578U CN 212848578 U CN212848578 U CN 212848578U CN 202021658473 U CN202021658473 U CN 202021658473U CN 212848578 U CN212848578 U CN 212848578U
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- cold runner
- cold
- battery pack
- bottom plate
- runner
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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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Abstract
The utility model relates to an electric automobile liquid cooling battery pack, which belongs to the technical field of new energy electric vehicles, and comprises a box body with an open top, a cold runner embedded in the box body, and a cold fluid inlet joint and a cold fluid outlet joint which are respectively arranged at an inlet and an outlet of the cold runner; the cold runner comprises a first cold runner, a second cold runner and a third cold runner which are sequentially arranged along the flowing direction of cold fluid; the box body comprises a bottom plate and side plates arranged on the periphery of the bottom plate, and the first cold runner and the third cold runner are respectively arranged on the side plates on one side of the bottom plate; the second cold runner is arranged on the bottom plate, and two ends of the second cold runner are respectively communicated with the first cold runner and the third cold runner. The utility model discloses a bury the cold runner underground inside the box, avoided arranging the space waste that the liquid cooling board caused alone in the battery package inside wall, increased the liquid cooling spatial arrangement, improved thermal management efficiency; the cold runners are arranged at the periphery and the bottom of the box body, so that the cooling effect of the battery pack is improved.
Description
Technical Field
The utility model belongs to the technical field of the new forms of energy electric motor car, a liquid cooling battery package of electric automobile is related to.
Background
The heat pipe technology can meet the requirements of the battery pack on high-temperature heat dissipation and low-temperature preheating, has good temperature uniformity, and has certain development as a cooling system of the battery pack. However, due to the limitations of layout and volume, in a new energy power battery system, various heat dissipation layout structures are adopted, such as a cavity type, a pressure tube type, a friction welding type and a vacuum brazing type which are common at present.
The battery pack lower shell is used as a core component of a new energy automobile, and the importance of safety problems is more and more a hot point of attention of people. The control of the temperature of the internal structure and the increase of the overall heat dissipation performance are very important.
However, most of the current mainstream liquid cooling plate processes adopt CNC (computer numerical control) machining and forming, and the cost, the period and the process threshold are considered to be not suitable for batch production and processing.
In addition, the cooling water path is only laid on the inner side surface of the bottom plate of the battery pack box body in the prior art and is used for adjusting the ambient temperature of the battery module, but the structure has the problems of low heat dissipation efficiency and poor cooling effect.
SUMMERY OF THE UTILITY MODEL
In view of this, an object of the present application is to provide a liquid-cooled battery pack for an electric vehicle, so as to improve the cooling effect of the battery pack.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a liquid-cooled battery pack of an electric automobile comprises a box body with an open top, a cold runner embedded in the box body, and a cold fluid inlet joint and a cold fluid outlet joint which are respectively arranged at an inlet and an outlet of the cold runner; the cold runner comprises a first cold runner, a second cold runner and a third cold runner which are sequentially arranged along the flowing direction of cold fluid; the box body comprises a bottom plate and side plates arranged on the periphery of the bottom plate, and the first cold runner and the third cold runner are respectively arranged on the side plates on one side of the bottom plate; the second cold runner is arranged on the bottom plate, and two ends of the second cold runner are respectively communicated with the first cold runner and the third cold runner.
Optionally, the first cold runner and the third cold runner are arranged in multiple layers along the height direction of the box body.
Optionally, the second cold runners are arranged in a plurality of rows in the width direction of the box body.
Optionally, the box body is built by an aluminum alloy profile with a cavity structure, and the first cold runner, the second cold runner and the third cold runner are located in the cavity structure of the corresponding profile.
Optionally, the box body is provided with at least one partition plate along the length direction of the box body, the partition plate divides the box body into a plurality of storage spaces, and cold runners of the adjacent storage spaces are communicated through liquid cooling pipelines arranged on the partition plate.
Optionally, the baffle comprises oppositely disposed panels and an intermediate layer between the panels.
Optionally, a liquid cooling pipeline is arranged in the middle layer, and the liquid cooling pipeline comprises a plurality of layers of folding pipelines which are arranged oppositely and a connecting pipeline which is connected with the two folding pipelines.
Optionally, the bottom plate and the side plates and the adjacent side plates are provided with plug-in structures, each plug-in structure comprises a slot and a plug matched with the slot, the bottom plate and the side plates and the adjacent side plates are connected in a plug-in mode through the matching of the plugs and the slots, and the connection positions are welded.
Optionally, a corner block is arranged at the joint of the partition board and the bottom board, and two ends of the corner block are respectively fixedly connected with the partition board and the bottom board.
The beneficial effects of the utility model reside in that: the cold runner is embedded in the box body, so that space waste caused by independently arranging the liquid cooling plate on the inner side wall of the battery pack is avoided, the liquid cooling space arrangement is increased, and the heat management efficiency is improved; by arranging the cold runners at the circumferential direction and the bottom of the box body, compared with the situation that only the bottom plate of the traditional battery pack flows water, the circulation area of the water path in the battery pack is increased, and the cooling effect of the battery pack is improved; by adopting the aluminum alloy section with the cavity structure, the structural vacancy of the aluminum alloy extruded section in the common structure is made up, the manufacturing period and the manufacturing cost are reduced, and the mass production is facilitated; because only one cold fluid inlet joint and one cold fluid outlet joint are adopted, the leakage problem caused by the fact that the joint of the joints and the box body is not sealed in place is reduced, and the safety of the battery pack is improved.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.
Drawings
For the purposes of promoting a better understanding of the objects, features and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
fig. 1 is a schematic perspective view of the present invention;
fig. 2 is an exploded view of the present invention;
FIG. 3 is a schematic structural view of a front side plate;
FIG. 4 is a schematic structural view of a right side plate;
FIG. 5 is a schematic view of the rear plate;
FIG. 6 is a schematic structural view of the left side plate;
FIG. 7 is a schematic structural view of a base plate;
FIG. 8 is a first schematic structural view of a partition board;
FIG. 9 is a second schematic structural view of a separator;
FIG. 10 is a schematic view of an interlayer structure;
fig. 11 is a schematic structural view of a corner block.
Reference numerals: the device comprises a front side plate 1, a right side plate 2, a rear side plate 3, a left side plate 4, a bottom plate 5, a partition plate 6, a corner block 7 and a cold runner 8.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in any way limiting the scope of the invention; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Referring to fig. 1 to 11, a liquid-cooled battery pack for an electric vehicle includes a box body with an open top, a cold runner 8 embedded in the box body, and a cold fluid inlet connector and a cold fluid outlet connector respectively disposed at an inlet and an outlet of the cold runner 8; the cold runner 8 comprises a first cold runner, a second cold runner and a third cold runner which are sequentially arranged along the flowing direction of cold fluid; the box body comprises a bottom plate 5 and side plates arranged on the periphery of the bottom plate 5, and the first cold runner and the third cold runner are respectively arranged on the side plates on one side of the bottom plate 5; the second cold runner is arranged on the bottom plate 5, and two ends of the second cold runner are respectively communicated with the first cold runner and the third cold runner.
Preferably, the first cold runner and the third cold runner are arranged in a multilayer mode along the height direction of the box body, and adjacent layers are communicated through bent pipes.
Preferably, the second cold runners are arranged in a plurality of rows along the width direction of the box body, and adjacent rows are communicated through bent pipes.
In order to reduce the weight of the box body, the box body is made of an aluminum alloy material, preferably an aluminum alloy section with a cavity structure, and the first cold runner, the second cold runner and the third cold runner are located in the cavity structures of the corresponding sections.
Preferably, the box body is provided with at least one partition plate along the length direction, the partition plate is fixedly connected with the bottom plate 5, the partition plate divides the box body into a plurality of storage spaces, and cold runners 8 of the adjacent storage spaces are communicated through liquid cooling pipelines arranged on the partition plate.
Preferably, a corner block 7 is arranged at the joint of the partition board and the bottom board 5, the corner block 7 can be an L-shaped aluminum block, and two ends of the corner block 7 are respectively fixedly connected with the partition board and the bottom board 5.
Preferably, the baffle includes the relative panel that sets up and the intermediate level that is located between two panels, is equipped with the liquid cooling pipeline in the intermediate level, and the liquid cooling pipeline includes the relative multilayer folding pipeline that sets up and the connecting line of connecting two folding pipelines, and the intermediate level can be the rubber pad that bonds with two panels.
Preferably, the inserting structure is arranged between the bottom plate 5 and the side plates and between the adjacent side plates, the inserting structure comprises a slot and a plug matched with the slot, the inserting connection is realized between the bottom plate 5 and the side plates and between the adjacent side plates through the matching of the plug and the slot, and the connecting part is welded.
Examples
The utility model provides an electric automobile's liquid cooling battery package structure, by preceding curb plate 1, right side board 2, posterior lateral plate 3, left side board 4, bottom plate 5, baffle 6, hornblock 7, cold runner 8 constitute, concrete structure and function go into down.
Firstly, the left side plate 4, the right side plate 2 and the bottom plate 5 are spliced, and then the front side plate 1 and the rear side plate 3 are spliced through the mechanical insertion structure reserved for the left side plate 4, the right side plate 2 and the bottom plate 5 to form a main body frame of the whole battery pack. Baffle 6 is the liquid cooling board, with the corner piece 7 with rivet connection, is connected through welding process between corner piece 7 and the bottom concatenation limit of left side board 4 and right side board 2, the bottom plate 5, aluminum plate 6 makes the supplement for the thermal management demand at battery module middle part. The aluminum clapboard 6 is of a sandwich structure and consists of foamed aluminum panels at two sides and a middle layer positioned between the two panels, and the middle layer is a layer of rubber gasket which is connected with the panels in an adhesive way.
The utility model discloses use aluminum alloy extruded section bar as the main part, optimize the section from multidimension degree such as function, performance, weight, the space of arranging, price. Through section bar extrusion molding basin inner chamber, combine the inside usable liquid cooling space of whole battery package of union coupling again, make its inner space can make the best use of, the product reaches lighter weight, better performance.
The copper pipes are connected in from a cold fluid inlet joint arranged on the front side plate 1 (or the rear side plate 3), are arranged through the inner wall extrusion cavity of the right side plate 2 (or the left side plate 4), are connected in a liquid cooling pipeline on one side of the foamed aluminum partition plate 6 after the extrusion cavity of the bottom plate 5 is connected in the inner wall extrusion cavity of the left side plate 4 (or the right side plate 2), and are connected out through the other side of the foamed aluminum partition plate 6. And the like until the cold fluid is discharged from a cold fluid outlet joint arranged on the rear side plate 3 (or the front side plate 1).
The copper pipe is preferably selected by the cold runner 8, the copper pipe is a schematic part of the liquid-cooled battery pack structure, and the bending, arrangement and connection modes of the copper pipe only provide reference.
Adopt two baffles to divide into three storage space with the box in this embodiment, the cold runner in every storage space is an independent module, all includes first cold runner, second cold runner and the third cold runner that sets up in order along cold fluid flow direction promptly, and the mode of setting up of this kind of cold runner does benefit to laying of cold runner, does benefit to the modularization equipment.
The baffle in this embodiment is provided with a liquid cooling pipeline in a circuitous manner, the liquid cooling pipeline comprises a plurality of layers of folding pipelines and a connecting pipeline for connecting the two folding pipelines, and the cold fluid enters the folding pipeline at the other side from the folding pipeline at one side through the connecting pipeline.
The utility model discloses compensatied the structure vacancy of aluminium alloy extrusion section bar among the common structure, can bury the copper pipe bottom plate 5, the curb plate of battery package box and with the built-in liquid cooling pipeline intercommunication of intermediate bottom plate, avoided arranging the space waste that the liquid cooling board caused alone at battery package inside wall, increased the liquid cooling spatial arrangement, improved thermal management efficiency.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.
Claims (8)
1. The utility model provides an electric automobile liquid cooling battery package which characterized in that: the cold flow inlet joint and the cold flow outlet joint are respectively arranged at an inlet and an outlet of the cold flow channel; the cold runner comprises a first cold runner, a second cold runner and a third cold runner which are sequentially arranged along the flowing direction of cold fluid; the box body comprises a bottom plate and side plates arranged on the periphery of the bottom plate, and the first cold runner and the third cold runner are respectively arranged on the side plates on one side of the bottom plate; the second cold runner is arranged on the bottom plate, and two ends of the second cold runner are respectively communicated with the first cold runner and the third cold runner.
2. The liquid-cooled battery pack for the electric vehicle as claimed in claim 1, wherein: the first cold runner and the third cold runner are arranged in a multilayer mode along the height direction of the box body.
3. The liquid-cooled battery pack for the electric vehicle as claimed in claim 1, wherein: the second cold runners are arranged in a plurality of rows along the width direction of the box body.
4. The liquid-cooled battery pack for the electric vehicle as claimed in claim 1, wherein: the box is built by the aluminum alloy section bar that has the cavity structure and forms, and first cold runner, second cold runner and third cold runner are located the cavity structure of corresponding section bar.
5. The liquid-cooled battery pack for the electric vehicle as claimed in claim 1, wherein: the box is provided with at least one partition plate along the length direction, the partition plate divides the box into a plurality of storage spaces, and cold runners of the adjacent storage spaces are communicated through liquid cooling pipelines arranged on the partition plate.
6. The liquid-cooled battery pack for the electric vehicle as claimed in claim 5, wherein: the separator includes oppositely disposed facing plates and an intermediate layer disposed between the facing plates.
7. The liquid-cooled battery pack for the electric vehicle as claimed in claim 6, wherein: the liquid cooling pipeline is arranged in the middle layer and comprises a plurality of layers of folding pipelines and a connecting pipeline, wherein the layers of folding pipelines are arranged oppositely, and the connecting pipeline is connected with the two folding pipelines.
8. The liquid-cooled battery pack for the electric vehicle as claimed in claim 1, wherein: the bottom plate with be equipped with grafting structure between the curb plate, between the adjacent curb plate, grafting structure includes slot and the plug that matches with the slot, realizes the plug connection through the cooperation of plug and slot between bottom plate and the curb plate, between the adjacent curb plate to weld in the department of meeting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021658473.8U CN212848578U (en) | 2020-08-11 | 2020-08-11 | Liquid cooling battery pack for electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021658473.8U CN212848578U (en) | 2020-08-11 | 2020-08-11 | Liquid cooling battery pack for electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212848578U true CN212848578U (en) | 2021-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021658473.8U Active CN212848578U (en) | 2020-08-11 | 2020-08-11 | Liquid cooling battery pack for electric automobile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022206188A1 (en) * | 2021-04-01 | 2022-10-06 | 宁德时代新能源科技股份有限公司 | Battery and electrical device |
| CN115458830A (en) * | 2022-09-16 | 2022-12-09 | 东风汽车集团股份有限公司 | Liquid cooling device and battery pack |
-
2020
- 2020-08-11 CN CN202021658473.8U patent/CN212848578U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022206188A1 (en) * | 2021-04-01 | 2022-10-06 | 宁德时代新能源科技股份有限公司 | Battery and electrical device |
| CN115458830A (en) * | 2022-09-16 | 2022-12-09 | 东风汽车集团股份有限公司 | Liquid cooling device and battery pack |
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