CN218648017U - Square aluminum hull lithium cell module of water-cooling and new forms of energy vehicle - Google Patents
Square aluminum hull lithium cell module of water-cooling and new forms of energy vehicle Download PDFInfo
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- CN218648017U CN218648017U CN202222120883.2U CN202222120883U CN218648017U CN 218648017 U CN218648017 U CN 218648017U CN 202222120883 U CN202222120883 U CN 202222120883U CN 218648017 U CN218648017 U CN 218648017U
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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 the technical field of power batteries, and provides a water-cooling square aluminum shell lithium battery module, which comprises an electric core group and an aluminum shell component for containing the electric core group, wherein the electric core group is formed by connecting a plurality of electric cores in series with polar columns through electric connecting sheets; the aluminum shell assembly comprises a lower water-cooling shell group, an upper water-cooling cover plate and sealing strips, wherein two sides of the upper water-cooling cover plate are fixedly connected with the lower water-cooling shell group through the sealing strips and a plurality of screws; the bottom of the upper water-cooling cover plate is provided with a groove for accommodating the pole columns of the electric core group and the electric connecting sheets, the middle part of the upper water-cooling cover plate is provided with a water inlet channel, and two sides of the water inlet channel are provided with first branch water channels for cooling the insulating heat conduction strips relative to each electric core; a water outlet channel is arranged in the bottom plate of the lower water cooling shell group, a second branch water channel is arranged on two sides of the water outlet channel opposite to each electric core, and the second branch water channels extend to two side plates of the lower water cooling shell group and are communicated with the first branch water channels. The utility model discloses the effectual cooling efficiency who improves electric core has guaranteed the difference in temperature between the electric core.
Description
Technical Field
The utility model relates to a power battery technical field especially relates to a square aluminum hull lithium cell module of water-cooling and new forms of energy vehicle.
Background
At present, the water cooling methods of the existing power battery module mainly include the following two types:
one is that the power battery module is cooled by arranging a cooling system on the pack box; the method has high process requirements on the battery box, so that the manufacturing cost of battery system parts is high, the temperature difference between the battery cores is difficult to control, and the problem of low battery core cooling efficiency exists;
the other type is that the bottom of module itself is provided with water-cooling structure, and this kind has the temperature difference between the electric core to be difficult to control equally, and the problem that electric core cooling efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving the technical problem who exists among the prior art. Therefore, the utility model provides a square aluminum hull lithium cell module of water-cooling improves the cooling efficiency of electric core.
The utility model provides a technical scheme that its technical problem adopted is:
the water-cooling square aluminum shell lithium battery module comprises an electric core group and an aluminum shell component for containing the electric core group, wherein the electric core group is formed by serially connecting a plurality of electric cores with polar columns through electric connecting sheets; the aluminum shell assembly comprises a lower water-cooling shell group, an upper water-cooling cover plate and sealing strips, wherein two sides of the upper water-cooling cover plate are fixedly connected with the lower water-cooling shell group through the sealing strips and a plurality of screws; the bottom of the upper water-cooling cover plate is provided with a groove for accommodating the pole columns of the electric core group and the electric connecting sheets, the middle part of the upper water-cooling cover plate is provided with a water inlet channel, and two sides of the water inlet channel are provided with first branch water channels for cooling the insulating heat conducting strips relative to each electric core; and a water outlet channel is arranged in the bottom plate of the lower water cooling shell group, two sides of the water outlet channel are opposite to each electric core and are provided with second branch water channels, and the second branch water channels extend to the two side plates of the lower water cooling shell group and are communicated with the first branch water channels.
The utility model provides a square aluminum hull lithium cell module of water-cooling in a preferred embodiment, the aluminum hull subassembly still includes insulating heat conduction strip, insulating heat conduction strip is located in the recess for insulating and heat conduction between last water-cooling apron and the electric core group.
The utility model provides a square aluminum hull lithium battery module of water-cooling in the preferred embodiment, lower water-cooling shell group is including transversal lower water-cooling board, end plate and the curb plate insulating piece of personally submitting "U" type, the curb plate insulating piece is located the curb plate outside of lower water-cooling board both sides, the end plate is located the both ends of lower water-cooling board with the curb plate insulating piece passes through the blind rivet rigid coupling.
The utility model provides a water-cooling square aluminum hull lithium cell module in a preferred embodiment, all be equipped with electric core insulation board between end plate and the electric core group and between the electric core of electric core group.
The utility model provides a in the square aluminum hull lithium battery module of water-cooling's a preferred embodiment, positive pole insulation connection terminal and negative pole insulation connection terminal divide locate on the end plate of module both sides and with electric connection piece electric connection.
The utility model provides a square aluminum hull lithium cell module of water-cooling's a preferred embodiment, the inlet channel is located the different ends of module with the exhalant canal.
In a preferred embodiment of the water-cooling square aluminum-shell lithium battery module provided by the present invention, the sealing strip is provided with a water hole connecting the first branch water channel and the second branch water channel.
Still provide a new forms of energy vehicle, including power battery system, power battery system adopts the square aluminum hull lithium cell module of water-cooling in the above-mentioned arbitrary embodiment.
Compared with the prior art, the utility model provides a beneficial effect is: the utility model discloses utilize the cooling of upper water-cooling apron to having realized electric core utmost point post, utilize the cooling of water-cooling shell group realization to electric core bottom and side down, the effectual cooling efficiency who improves electric core has guaranteed the difference in temperature between the electric core, and simple structure, is fit for batch production with reduction part cost.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and 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 without inventive work, wherein:
fig. 1 is a schematic structural diagram of a water-cooled square aluminum shell lithium battery module provided by the present invention;
fig. 2 is an exploded view of the water-cooled square aluminum-shell lithium battery module provided in fig. 1;
FIG. 3 is a top view of the water-cooled square aluminum-shell lithium battery module provided in FIG. 1;
FIG. 4 is a side view provided in FIG. 3;
FIG. 5 isbase:Sub>A cross-sectional view A-A provided in FIG. 3;
FIG. 6 is a cross-sectional view B-B provided in FIG. 4;
FIG. 7 is a cross-sectional view C-C provided in FIG. 4;
fig. 8 is a cross-sectional view D-D provided in fig. 3.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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 efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
The embodiment provides a square aluminum hull lithium cell module of water-cooling, as shown in fig. 1 to fig. 5, including electric core group 20 and aluminum hull subassembly 10 that is used for splendid attire electric core group, electric core group 20 is established ties through electric connection sheet 202 and is established ties the utmost point post by a plurality of electric cores 201 and forms, and passes through electric core insulation board 203 insulation treatment between the electric core 201.
This embodiment designs the aluminum hull subassembly for solving the heat dissipation problem of electric core group. As shown in fig. 2, the aluminum shell assembly 10 includes a lower water-cooling shell group 101, an upper water-cooling cover plate 102 and sealing strips 103, two sides of the upper water-cooling cover plate 102 are fixedly connected to the lower water-cooling shell group 101 through the sealing strips 103 and a plurality of screws, and the electric core group 20 is installed in a cavity surrounded by the lower water-cooling shell group 101 and the upper water-cooling cover plate 102. The bottom of the upper water-cooling cover plate 102 is provided with a groove 1020 for accommodating the pole of the electric core group 20 and the electric connecting sheet, and the groove 1020 is internally provided with an insulating heat conducting strip 30 for insulating the upper water-cooling cover plate and the electric core group and conducting heat generated by the pole of the electric core to the upper water-cooling cover plate. As shown in fig. 4 and fig. 6, a water inlet channel 1021 is arranged in the middle of the upper water-cooled cover plate 102, and first branch water channels 1022 for cooling the insulating and heat conducting strips are arranged on two sides of the water inlet channel 1021 opposite to each of the battery cells 201. As shown in fig. 4, 7 and 8, a water outlet channel 1011 is disposed in a bottom plate of the lower water-cooling shell group 101, a second branch water channel 1012 is disposed on two sides of the water outlet channel 1011, opposite to each of the electric cores 201, the second branch water channel 1012 extends to two side plates of the lower water-cooling shell group 101 and is communicated with the first branch water channel 1011, and a water through hole 1030 for connecting the first branch water channel 1022 and the second branch water channel 1012 is disposed on the sealing strip 103.
The cooling principle is as follows: the cooling medium enters the water inlet channel from the upper water-cooling cover plate, reaches the position of the electric core pole column along the first branch water channels on the two sides of the water inlet channel, takes away partial heat energy generated by the electric core pole column, then flows downwards through the second branch water channel on the side surface of the electric core from the side surface of the lower water-cooling shell group, flows out after converging the water outlet channel at the center of the bottom surface of the electric core, and takes away the heat energy on the side surface of the electric core, so that the cooling efficiency of the electric core is effectively improved, and the temperature difference between the electric cores is guaranteed.
Specifically, the water inlet channel 1021 and the water outlet channel 1011 of the present embodiment are located at different ends of the module. In other embodiments, the inlet channel and the outlet channel may be located at the same end of the module.
Example two
On the basis of the first embodiment, the structure of the lower water-cooling shell group is optimally designed in this embodiment, as shown in fig. 2, the lower water-cooling shell group 101 of this embodiment includes a lower water-cooling plate 101a with a u-shaped cross section, an end plate 101b, and a side plate insulating sheet 101c, the side plate insulating sheet 101c is disposed on the outer side of the side plates on both sides of the lower water-cooling plate 101a, and the end plate 101b is disposed on both ends of the lower water-cooling plate 101a and fixedly connected to the side plate insulating sheet 101c through blind rivets 40. The lower water cooling shell group with the structure is convenient to process, simple to assemble and suitable for batch production so as to reduce the cost of parts.
Preferably, a cell insulation plate 203 is arranged between the end plate 101b and the cell group 20 for insulating the cell from the end plate.
The positive insulating wire holder 50 and the negative insulating wire holder 60 are respectively disposed on the end plates 101b at both sides of the module and electrically connected to the electrical connection sheet 202 as the connection terminals of the module.
Preferably, the upper water-cooled cover plate 102 and the lower water-cooled cover plate 101a in this embodiment are both made of aluminum.
EXAMPLE III
The embodiment provides a new energy vehicle, which comprises a power battery system, wherein the power battery system adopts the water-cooling square aluminum shell lithium battery module in the first embodiment or the second embodiment.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes made by the present specification can be changed, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.
Claims (8)
1. A water-cooling square aluminum shell lithium battery module comprises an electric core group and an aluminum shell component for containing the electric core group, wherein the electric core group is formed by connecting a plurality of electric cores in series with polar posts through electric connecting sheets; the method is characterized in that:
the aluminum shell assembly comprises a lower water-cooling shell group, an upper water-cooling cover plate and sealing strips, wherein two sides of the upper water-cooling cover plate are fixedly connected with the lower water-cooling shell group through the sealing strips and a plurality of screws;
the bottom of the upper water-cooling cover plate is provided with a groove for accommodating the pole columns of the electric core group and the electric connecting sheets, the middle part of the upper water-cooling cover plate is provided with a water inlet channel, and two sides of the water inlet channel are provided with first branch water channels for cooling the insulating heat conducting strips relative to each electric core;
and a water outlet channel is arranged in the bottom plate of the lower water cooling shell group, two sides of the water outlet channel are opposite to each electric core and are provided with second branch water channels, and the second branch water channels extend to the two side plates of the lower water cooling shell group and are communicated with the first branch water channels.
2. The water-cooled square aluminum shell lithium battery module as claimed in claim 1, wherein: the aluminum shell assembly further comprises an insulating heat conduction strip, and the insulating heat conduction strip is arranged in the groove and used for insulating and conducting heat between the upper water-cooling cover plate and the electric core assembly.
3. The water-cooled square aluminum-shell lithium battery module as set forth in claim 1, wherein: the lower water-cooling shell group comprises a lower water-cooling plate with a U-shaped cross section, end plates and side plate insulating sheets, wherein the side plate insulating sheets are arranged on the outer sides of the side plates on two sides of the lower water-cooling plate, and the end plates are arranged at two ends of the lower water-cooling plate and fixedly connected with the side plate insulating sheets through blind rivets.
4. The water-cooled square aluminum-shell lithium battery module as set forth in claim 3, wherein: and electric core insulation plates are arranged between the end plates and the electric core group and between the electric cores of the electric core group.
5. The water-cooled square aluminum shell lithium battery module as claimed in claim 3, wherein: the positive electrode insulation wire holder and the negative electrode insulation wire holder are respectively arranged on the end plates on two sides of the module and electrically connected with the electric connection sheet.
6. The water-cooled square aluminum shell lithium battery module as claimed in claim 1, wherein: the water inlet channel and the water outlet channel are positioned at different ends of the module.
7. The water-cooled square aluminum-shell lithium battery module as set forth in claim 1, wherein: and the sealing strip is provided with a water through hole for connecting the first branch water channel and the second branch water channel.
8. A new energy vehicle, characterized in that: the water-cooling square aluminum shell lithium battery module comprises a power battery system, wherein the power battery system adopts the water-cooling square aluminum shell lithium battery module in any claim from 2 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222120883.2U CN218648017U (en) | 2022-08-12 | 2022-08-12 | Square aluminum hull lithium cell module of water-cooling and new forms of energy vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222120883.2U CN218648017U (en) | 2022-08-12 | 2022-08-12 | Square aluminum hull lithium cell module of water-cooling and new forms of energy vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218648017U true CN218648017U (en) | 2023-03-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222120883.2U Active CN218648017U (en) | 2022-08-12 | 2022-08-12 | Square aluminum hull lithium cell module of water-cooling and new forms of energy vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218648017U (en) |
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2022
- 2022-08-12 CN CN202222120883.2U patent/CN218648017U/en active Active
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