CN217788530U - Battery package liquid cooling subassembly - Google Patents
Battery package liquid cooling subassembly Download PDFInfo
- Publication number
- CN217788530U CN217788530U CN202221380897.1U CN202221380897U CN217788530U CN 217788530 U CN217788530 U CN 217788530U CN 202221380897 U CN202221380897 U CN 202221380897U CN 217788530 U CN217788530 U CN 217788530U
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- liquid cooling
- liquid
- cooling
- box body
- runners
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- 239000007788 liquid Substances 0.000 title claims abstract description 121
- 238000001816 cooling Methods 0.000 title claims abstract description 118
- 239000000110 cooling liquid Substances 0.000 claims abstract description 34
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 18
- 238000005192 partition Methods 0.000 claims abstract description 12
- 210000002310 elbow joint Anatomy 0.000 claims description 19
- 239000000178 monomer Substances 0.000 claims description 9
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 239000006260 foam Substances 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims 1
- 239000002826 coolant Substances 0.000 abstract description 14
- 230000003139 buffering effect Effects 0.000 abstract 1
- 239000012809 cooling fluid Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 241000668842 Lepidosaphes gloverii Species 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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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 provides a battery pack liquid cooling component, which improves the strength of a box body bottom plate by laying a reinforcing frame on the box body bottom plate, and prevents the box body bottom plate from deforming by bearing the weight of a battery module through the reinforcing frame; meanwhile, by arranging the split first liquid cooling flow channel, compared with the adoption of the whole liquid cooling plate, the energy density can be improved; the plurality of first liquid cooling runners are laid on the cross beam, and compared with the mode that the whole liquid cooling plate and the longitudinal beam are arranged in a laminated mode, the occupied space height can be reduced, and the energy density is further improved; fourthly, the liquid cooling plate does not bear the weight of the battery module, so that the liquid cooling plate can be designed to be thinner, and the energy density is improved; the buffer plate is arranged to ensure that the first liquid cooling flow channel is abutted against the bottom of the single battery cell to fully perform heat exchange, and meanwhile, the buffer plate can also play a role in buffering; the cooling liquid inlet and the cooling liquid outlet are arranged on the same side, so that the wiring length can be reduced; the design of cooperation partition panel lets the coolant liquid be the circulation of S-shaped in the liquid cooling board, and increase heat transfer area improves heat exchange efficiency.
Description
Technical Field
The utility model relates to a lithium ion battery field especially relates to a battery package liquid cooling subassembly.
Background
With the increasingly strict requirement of people on the endurance mileage of electric automobiles, the battery pack is required to have a large capacity, so that the size of the battery pack is larger, and particularly the length of the battery pack is longer. Therefore, the strength of the bottom plate of the battery pack box body is insufficient, and the reinforcing rib plates need to be laid along the length direction, but the laying of the reinforcing rib plates occupies a certain height space, and the overall energy density of the battery pack is reduced.
In addition, the conventional battery pack generally comprises a plurality of battery modules, a liquid cooling plate and a box body, wherein the liquid cooling plate is usually a complete plate and is directly laid on a bottom plate of the box body, the battery modules are arranged on the surface of the liquid cooling plate, and circulating cooling water is introduced into the liquid cooling plate to dissipate heat of the battery modules. Because the liquid cooling plate needs to bear the pressure of the battery module, the design thickness of the liquid cooling plate is thick, the overall weight can be increased, and the overall energy density of the battery pack is reduced.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a battery package liquid cooling subassembly can adapt to long size module designing requirement, under the prerequisite of guaranteeing the atress intensity, improves the whole energy density of battery package.
The technical scheme of the utility model is realized like this: the utility model provides a battery pack liquid cooling component, which comprises a box body, a plurality of battery modules and a reinforcing frame, wherein the reinforcing frame is fixed on the bottom plate of the box body, the plurality of battery modules are arranged on the reinforcing frame in a matrix manner, the battery pack liquid cooling component also comprises a liquid cooling plate,
the reinforcing frame comprises a plurality of cross beams and longitudinal beams, the longitudinal beams are arranged along the length direction of the box body, and the longitudinal beams are arranged at intervals along the width direction of the box body; the cross beams are arranged along the width direction of the box body and are fixed with the longitudinal beams, and the cross beams are arranged at intervals along the length direction of the box body;
the liquid cooling plate comprises a plurality of first liquid cooling runners and two second liquid cooling runners, the second liquid cooling runners are arranged along the width direction of the box body, and the two second liquid cooling runners are arranged at intervals along the length direction of the box body and are provided with cooling liquid inlets or cooling liquid outlets; the first liquid cooling runners are arranged along the length direction of the box body, two ends of the first liquid cooling runners are respectively communicated with the two second liquid cooling runners, the plurality of first liquid cooling runners are arranged at intervals along the width direction of the box body, and the first liquid cooling runners are paved on the cross beam and are abutted against the bottom of the battery module.
On the basis of above technical scheme, preferred, still include a plurality of buffer boards, the buffer board is rectangular form and sets up between first liquid cooling runner and crossbeam.
Preferably, the buffer plate is made of foam.
On the basis of the above technical scheme, preferably, the first liquid cooling flow channel is long, and the middle is a flow channel.
On the basis of above technical scheme, preferred, set up two battery modules and a liquid cooling board side by side in every box, every battery module includes the monomer electric core that a plurality of arranged side by side, and a liquid cooling board includes four first liquid cooling runners, and every monomer electric core bottom supports with two first liquid cooling runners and holds.
Further preferably, a cooling fluid inlet and a cooling fluid outlet are respectively arranged at two ends of one of the second cooling fluid channels.
Further preferably, a partition plate is arranged in the middle of one second liquid cooling runner, a cooling liquid inlet and a cooling liquid outlet are respectively formed in two sides of the partition plate, and every two of the four first liquid cooling runners are respectively communicated with the second liquid cooling runners on two sides of the partition plate.
Further preferably, the liquid cooling plate further comprises two joint assemblies respectively communicated with the cooling liquid inlet and the cooling liquid outlet and fixed with the box body.
Still further preferably, the joint assembly includes a straight joint, a U-shaped elbow joint, an L-shaped elbow joint and a straight joint, wherein the straight joint passes through the tank body and is fixed thereto, both ends of the L-shaped elbow joint are respectively communicated with the U-shaped elbow joint and the straight joint, one end of the straight joint is communicated with the coolant inlet or the coolant outlet, and the other end of the straight joint is communicated with the U-shaped elbow joint and is fastened by a flange.
Still further preferably, the liquid cooling plate further comprises two connecting pieces, and the connecting pieces are respectively fixed with the second liquid cooling runner and the box body bottom plate.
The utility model discloses a battery package liquid cooling subassembly has following beneficial effect for prior art:
(1) The strength of the box body bottom plate is improved by paving the reinforcing frame on the box body bottom plate, and the reinforcing frame bears the weight of the battery module, so that the box body bottom plate is prevented from deforming; meanwhile, by arranging the split first liquid cooling flow channel, compared with the adoption of the whole liquid cooling plate, the energy density can be improved; the plurality of first liquid cooling runners are laid on the cross beam, and compared with the mode that the whole liquid cooling plate and the longitudinal beam are arranged in a laminated mode, the occupied space height can be reduced, and the energy density is further improved; fourthly, the liquid cooling plate does not bear the weight of the battery module, so that the liquid cooling plate can be designed to be thinner, and the energy density is improved;
(2) The buffer plate is arranged, so that the first liquid cooling flow channel is guaranteed to be abutted against the bottom of the single battery cell, heat exchange is fully carried out, and meanwhile, a buffer effect can be achieved;
(3) The cooling liquid inlet and the cooling liquid outlet are arranged on the same side, so that the wiring length can be reduced; by matching with the design of the partition plate, cooling liquid flows in the liquid cooling plate in an S shape, so that the heat exchange area is increased, and the heat exchange efficiency is improved;
(4) The U-shaped bent joint is arranged, so that the effects of avoiding position and preventing interference can be achieved; in addition, compared with a right-angle connection mode, the U-shaped elbow joint can reduce the assembly precision requirement and is convenient to disassemble.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a perspective view of a battery pack of the present invention;
fig. 2 is a perspective view of the battery pack of the present invention with the upper cover removed;
fig. 3 is a perspective view of the battery pack of fig. 2 with one battery module removed;
FIG. 4 is a perspective view of the battery pack of FIG. 3 with the battery module and the liquid cooling plate removed;
fig. 5 is a perspective view of a liquid cooling plate of the battery pack of the present invention;
fig. 6 is an enlarged view of the oval area of fig. 5.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to 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 all belong to the protection scope of the present invention.
As shown in fig. 1-4, the utility model discloses a battery package liquid cooling subassembly, it includes box 1, a plurality of battery module 2, strengthens frame 3, liquid cooling plate 4 and buffer board 5.
The box body 1 can adopt the prior art, generally adopts sheet metal parts, and comprises an upper cover and a lower cover.
The reinforcing frame 3 is fixed on the bottom plate of the box body 1 to improve the strength of the bottom plate of the box body 1 and adapt to the long-scale battery module 2. The battery modules 2 are arranged on the reinforcing frame 3 in a matrix mode, the reinforcing frame 3 serves as a main stress piece to support the battery modules 2, the non-liquid-cooling plate 4 serves as a main stress piece to support the battery modules 2, and the liquid-cooling plate 4 can be designed to be thinner, so that energy density is improved. Specifically, the reinforcing frame 3 comprises a plurality of cross beams 31 and longitudinal beams 32, the longitudinal beams 32 are arranged along the length direction of the box body 1, and the longitudinal beams 32 are arranged at intervals along the width direction of the box body 1; the cross beams 31 are arranged along the width direction of the box body 1 and fixed with the longitudinal beams 32, and the cross beams 31 are arranged at intervals along the length direction of the box body 1. Specifically, the upper surfaces of the cross members 31 and the side members 32 may be set to be equal in height, thereby supporting the bottom of the battery module 2 together.
And the liquid cooling plate 4 is abutted against the bottom of the battery module 2, and is used for dissipating heat by introducing circulating cooling liquid. As shown in fig. 5 to 6, in particular, the liquid cooling plate 4 includes a plurality of first liquid cooling channels 41, two second liquid cooling channels 42, two joint assemblies 43 and two connecting members 44.
The second liquid cold runner 42 is arranged along the width direction of the box body 1, and the two second liquid cold runners 42 are arranged at intervals along the length direction of the box body 1 and are provided with cooling liquid inlets or cooling liquid outlets. Specifically, the coolant inlet and the coolant outlet may be respectively disposed on the two second coolant runners 42, or the coolant inlet and the coolant outlet may be disposed on one second coolant runner 42.
The first liquid cooling runners 41 are arranged along the length direction of the box body 1, two ends of each first liquid cooling runner are respectively communicated with the two second liquid cooling runners 42, the plurality of first liquid cooling runners 41 are arranged at intervals along the width direction of the box body 1, and the first liquid cooling runners 41 are laid on the cross beam 31 and abut against the bottom of the battery module 2. Specifically, the first liquid cooling channel 41 abuts against the bottom of the battery module 2, but is not mainly stressed, and the weight of the battery module 2 is mainly supported by the reinforcing frame 3. Specifically, in order to make the surface of the first liquid cooling flow passage 41 adhere to the bottom of the battery module 2 as closely as possible, the first liquid cooling flow passage 41 is long, and the middle is a flow passage.
In order to guarantee that first liquid cooling runner 41 and battery module 2 bottom remain to holding, do not mainly atress simultaneously again, the utility model discloses select to set up buffer board 5 between first liquid cooling runner 41 and crossbeam 31, it can play the cushioning effect. Specifically, the buffer plates 5 are long and are convenient to lay on the cross beams 31 arranged at intervals. Specifically, the buffer plate 5 is made of foam.
In this embodiment, set up two battery module 2 and a liquid cooling board 4 side by side in every box 1, every battery module 2 includes the monomer electric core 20 that a plurality of was arranged side by side, and a liquid cooling board 4 includes four first liquid cooling runners 41, and every monomer electric core 20 bottom supports with two first liquid cooling runners 41 and holds. So, guarantee that every monomer electricity core 20 bottom both sides can both evenly dispel the heat. Specifically, a cooling fluid inlet and a cooling fluid outlet are respectively disposed at two ends of one of the second cooling fluid channels 42. Thus, the length of the wiring can be reduced.
Specifically, a partition plate 420 is disposed in the middle of one of the second liquid cooling runners 42, a cooling liquid inlet and a cooling liquid outlet are disposed on two sides of the partition plate 420, and the four first liquid cooling runners 41 are respectively communicated with the second liquid cooling runners 42 on two sides of the partition plate 420 in a pairwise manner. Set up partition panel 420, let the coolant liquid be the circulation of S-shaped in liquid cooling plate 4, increase heat transfer area improves heat exchange efficiency.
And the two joint assemblies 43 are respectively communicated with the cooling liquid inlet and the cooling liquid outlet and are fixed with the box body 1. For feeding and discharging the circulating cooling liquid. The commonly used joint component 43 is in a right-angle bent shape, and needs to be accurately aligned with a cooling liquid inlet, a cooling liquid outlet and a preformed hole of the box body 1 during installation, so that the requirement on assembly precision is high, and assembly cannot be guaranteed if the joint component is not aligned; in addition, even if the assembly is forced, liquid leakage is easy to occur in the case of displacement in the later period. Therefore, the utility model discloses corresponding improvement has been made to butt joint subassembly 43: the joint assembly 43 includes a straight joint 431, a U-shaped elbow joint 432, an L-shaped elbow joint 433, and a straight joint 434, wherein the straight joint 434 penetrates through and is fixed to the tank 1, both ends of the L-shaped elbow joint 433 are respectively communicated with the U-shaped elbow joint 432 and the straight joint 434, one end of the straight joint 431 is communicated with the coolant inlet or the coolant outlet, and the other end is communicated with the U-shaped elbow joint 432 and is fastened by a flange. In this way, the direct joint 434 and the tank 1 are fixed in advance, the direct joint 431 is connected to the coolant inlet or the coolant outlet, the U-shaped elbow joint 432 is connected to the L-shaped elbow joint 433 in sequence, and the direct joint 431 is connected to the U-shaped elbow joint 432 in sequence and then fastened to the tank by flanges, thereby achieving assembly. The above joint assembly 43 can be adjusted adaptively by rotating the U-shaped elbow 432, and has low requirements for assembly accuracy.
And a connecting piece 44 fixed with the second cooling liquid runner 42 and the bottom plate of the box body 1 respectively.
Introduce below the utility model discloses an assembly methods of battery package liquid cooling subassembly:
firstly, fixing a reinforcing frame 3 on a bottom plate of a box body 1;
then, a buffer plate 5 is laid on the cross beam 31, and then the liquid cooling plate 4 is placed on the buffer plate 5;
then, the joint component 43 is respectively connected with the box body 1, the cooling liquid inlet and the cooling liquid outlet, and the connecting piece 44 is respectively fixed with the second liquid-cold runner 42 and the bottom plate of the box body 1;
finally, the battery module 2 is fixed on the reinforcing frame 3, and the bottom of the battery module 2 abuts against the first liquid cooling channel 41.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a battery package liquid cooling subassembly, its includes box (1), a plurality of battery module (2) and strengthens frame (3), strengthens frame (3) and is fixed in on box (1) bottom plate, and a plurality of battery module (2) matrix arrangement are on strengthening frame (3), its characterized in that: also comprises a liquid cooling plate (4), wherein,
the reinforcing frame (3) comprises a plurality of cross beams (31) and longitudinal beams (32), the longitudinal beams (32) are arranged along the length direction of the box body (1), and the longitudinal beams (32) are arranged at intervals along the width direction of the box body (1); the cross beams (31) are arranged along the width direction of the box body (1) and are fixed with the longitudinal beams (32), and the cross beams (31) are arranged at intervals along the length direction of the box body (1);
the liquid cooling plate (4) comprises a plurality of first liquid cooling runners (41) and two second liquid cooling runners (42), the second liquid cooling runners (42) are arranged along the width direction of the box body (1), and the two second liquid cooling runners (42) are arranged at intervals along the length direction of the box body (1) and are provided with cooling liquid inlets or cooling liquid outlets; the first liquid cooling runners (41) are arranged along the length direction of the box body (1), two ends of the first liquid cooling runners are respectively communicated with the two second liquid cooling runners (42), the plurality of first liquid cooling runners (41) are arranged at intervals along the width direction of the box body (1), and the first liquid cooling runners (41) are laid on the cross beam (31) and abut against the bottom of the battery module (2).
2. The battery pack liquid cooling assembly of claim 1, wherein: the liquid cooling device is characterized by further comprising a plurality of buffer plates (5), wherein the buffer plates (5) are long-strip-shaped and are arranged between the first liquid cooling flow channel (41) and the cross beam (31).
3. The battery pack liquid cooling assembly of claim 2, wherein: the buffer plate (5) is made of foam.
4. The battery pack liquid cooling assembly of claim 1 wherein: the first liquid cooling flow channel (41) is long and is provided with a flow channel in the middle.
5. The battery pack liquid cooling assembly of claim 1, wherein: set up two battery module (2) and one liquid cooling board (4) side by side in every box (1), every battery module (2) includes monomer electric core (20) that a plurality of arranged side by side, and one liquid cooling board (4) include four first liquid cooling runners (41), and every monomer electric core (20) bottom supports with two first liquid cooling runners (41) and holds.
6. The battery pack liquid cooling assembly of claim 5, wherein: wherein, two ends of a second liquid-cold runner (42) are respectively provided with a cooling liquid inlet and a cooling liquid outlet.
7. The battery pack liquid cooling assembly of claim 6, wherein: wherein, the middle of one second liquid cooling runner (42) is provided with a partition plate (420), the two sides of the partition plate (420) are respectively provided with a cooling liquid inlet and a cooling liquid outlet, and the four first liquid cooling runners (41) are respectively communicated with the second liquid cooling runners (42) on the two sides of the partition plate (420) in pairs.
8. The battery pack liquid cooling assembly of claim 6, wherein: the liquid cooling plate (4) further comprises two joint assemblies (43) which are respectively communicated with the cooling liquid inlet and the cooling liquid outlet and are fixed with the box body (1).
9. The battery pack liquid cooling assembly of claim 8, wherein: the joint assembly (43) comprises a straight joint (431), a U-shaped elbow joint (432), an L-shaped elbow joint (433) and a straight joint (434), wherein the straight joint (434) penetrates through the box body (1) and is fixed with the box body, two ends of the L-shaped elbow joint (433) are respectively communicated with the U-shaped elbow joint (432) and the straight joint (434), one end of the straight joint (431) is communicated with the cooling liquid inlet or the cooling liquid outlet, and the other end of the straight joint (431) is communicated with the U-shaped elbow joint (432) and is fastened through a flange.
10. The battery pack liquid cooling assembly of claim 5, wherein: the liquid cooling plate (4) further comprises two connecting pieces (44), and the connecting pieces (44) are fixed with the second liquid cooling channel (42) and a bottom plate of the box body (1) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221380897.1U CN217788530U (en) | 2022-06-01 | 2022-06-01 | Battery package liquid cooling subassembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221380897.1U CN217788530U (en) | 2022-06-01 | 2022-06-01 | Battery package liquid cooling subassembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217788530U true CN217788530U (en) | 2022-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221380897.1U Active CN217788530U (en) | 2022-06-01 | 2022-06-01 | Battery package liquid cooling subassembly |
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| Country | Link |
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| CN (1) | CN217788530U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116394737A (en) * | 2023-05-10 | 2023-07-07 | 江苏天钧精密技术有限公司 | New energy automobile integrated battery package box of high strength CTC framework |
| CN117080621A (en) * | 2023-10-17 | 2023-11-17 | 厦门海辰储能科技股份有限公司 | Battery pack and electric equipment |
-
2022
- 2022-06-01 CN CN202221380897.1U patent/CN217788530U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116394737A (en) * | 2023-05-10 | 2023-07-07 | 江苏天钧精密技术有限公司 | New energy automobile integrated battery package box of high strength CTC framework |
| CN117080621A (en) * | 2023-10-17 | 2023-11-17 | 厦门海辰储能科技股份有限公司 | Battery pack and electric equipment |
| CN117080621B (en) * | 2023-10-17 | 2024-01-26 | 厦门海辰储能科技股份有限公司 | Battery pack and electric equipment |
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