CN215496858U - Battery package thermal management assembly - Google Patents
Battery package thermal management assembly Download PDFInfo
- Publication number
- CN215496858U CN215496858U CN202121328680.1U CN202121328680U CN215496858U CN 215496858 U CN215496858 U CN 215496858U CN 202121328680 U CN202121328680 U CN 202121328680U CN 215496858 U CN215496858 U CN 215496858U
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- Prior art keywords
- battery pack
- liquid
- cooling
- thermal management
- water
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- 238000001816 cooling Methods 0.000 claims abstract description 84
- 239000007788 liquid Substances 0.000 claims abstract description 70
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- 238000009413 insulation Methods 0.000 claims description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 239000002826 coolant Substances 0.000 description 10
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 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
- 238000005070 sampling Methods 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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- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The utility model provides a battery pack thermal management assembly which comprises a battery pack box body, wherein a plurality of battery pack modules are arranged in the battery pack box body, an insulating plate which is in contact with the battery pack modules is arranged on the side wall of the battery pack box body, a liquid cooling plate is arranged on the outer side wall of the insulating plate, a water cooling cavity is arranged between the liquid cooling plate and the insulating plate, a liquid inlet pipe and a liquid outlet pipe are respectively connected onto the water cooling cavity, and a heating film is attached to the outer side wall of the liquid cooling plate. According to the utility model, the water cooling and heating measures are integrated on the side wall of the battery pack box body from the bottom of the lower box body, so that active heat management and heat transmission with the outside through the lower box body are avoided, and the energy efficiency of the battery system is greatly improved, thereby improving the cruising mileage of the electric vehicle in summer or winter, reducing the cost of the battery system and improving the product competitiveness.
Description
Technical Field
The utility model relates to the technical field of new energy batteries, in particular to a battery pack heat management assembly.
Background
With the national requirements on the driving range of new energy vehicles, the system energy density, the energy consumption and the safety and reliability of power batteries becoming higher and higher, the safety and reliability, the light weight, the convenient maintenance and the like of battery systems become the subject of much attention, and it is an important technical direction at present to realize the light weight of power battery packs, improve the grouping efficiency of the power battery packs, optimize the thermal management of the battery systems and reduce the generation cost of the battery systems. At present, a module adopted by a power battery system in the industry is a module end plate for clamping a battery cell and is welded and fixed by a side plate end plate, a connecting aluminum bar between the battery cells is welded by low-impedance high-strength laser, and a voltage sampling line is welded by ultrasonic. The heat management design of the battery pack is that the lower box body is integrated with the liquid cooling plate, the liquid cooling plate is used for cooling and heating the battery system, nearly 10% of energy is wasted due to heat exchange between the lower box body and the outside due to the fact that the lower box body is in direct contact with the outside, and particularly under the low-temperature environment in winter, the battery system needs PTC heating at the end of the whole vehicle and then transfers the PTC heating to the battery system, so that nearly 20% of energy is wasted, and the endurance mileage of the whole vehicle is affected.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a battery pack thermal management assembly to solve the problem of low energy utilization efficiency of the existing battery pack thermal management.
The technical scheme of the utility model is realized as follows: the utility model provides a battery pack thermal management assembly which comprises a battery pack box body, wherein a plurality of battery pack modules are arranged in the battery pack box body, an insulating plate which is in contact with the battery pack modules is arranged on the side wall of the battery pack box body, a liquid cooling plate is arranged on the outer side wall of the insulating plate, a water cooling cavity is arranged between the liquid cooling plate and the insulating plate, a liquid inlet pipe and a liquid outlet pipe are respectively connected onto the water cooling cavity, and a heating film is attached to the outer side wall of the liquid cooling plate.
On the basis of the technical scheme, preferably, a water cooling runner is formed by sinking one surface of the liquid cooling plate, which faces the insulating plate, and the water cooling runner and the insulating plate are sealed to form the water cooling cavity.
Further, preferably, the water-cooling flow channel comprises a plurality of cavities which are communicated with each other, the top of each cavity is provided with a liquid inlet and a liquid outlet, the liquid inlets are connected with the liquid inlet pipe, and the liquid outlets are connected with the liquid outlet pipe.
Further, preferably, a seal ring is arranged outside the water cooling cavity between the liquid cooling plate and the insulating plate.
Preferably, the liquid cooling plate, the insulation plate and the battery pack case are locked by bolts.
Preferably, a heat conduction silica gel sheet is further arranged between the insulating plate and the battery pack module.
Preferably, the heating film is a PI heating film.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model discloses a battery pack thermal management assembly, wherein an insulating plate attached to a battery pack module is arranged on the side wall of a battery pack box, a liquid cooling plate is arranged on the outer side wall of the insulating plate, a water cooling cavity is arranged between the liquid cooling plate and the insulating plate, and the water cooling cavity is respectively connected with a liquid inlet pipe and a liquid outlet pipe. According to the utility model, the water cooling and heating measures are integrated on the side wall of the battery pack box body from the bottom of the lower box body, so that active heat management and heat transmission with the outside through the lower box body are avoided, and the energy efficiency of the battery system is greatly improved, thereby improving the cruising mileage of the electric vehicle in summer or winter, reducing the cost of the battery system and improving the product competitiveness.
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 following description 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 schematic perspective view of a thermal management assembly for a battery pack according to the present disclosure;
FIG. 2 is an exploded view of the disclosed battery pack thermal management assembly;
fig. 3 is a schematic structural diagram of a liquid cooling plate disclosed in the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1 and in combination with fig. 2, an embodiment of the utility model discloses a battery pack thermal management assembly, which includes a battery pack case 1, wherein a plurality of battery pack modules 2 are arranged in the battery pack case 1, and an insulating plate 3 in contact with the battery pack modules 2 is arranged on a side wall of the battery pack case 1, so that the battery pack modules 2 can be electrically isolated from external devices through the insulating plate 3, and electrical safety is ensured. Be provided with liquid cooling board 4 on 3 lateral walls of insulation board, be provided with the water-cooling cavity between liquid cooling board 4 and the insulation board 3, be connected with feed liquor pipe 5 and drain pipe 6 on the water-cooling cavity respectively, from this, can be connected with circulating water pump through feed liquor pipe 5, realize that the coolant liquid circulates in the water-cooling cavity and flows, and it has heating film 7 to paste on 4 lateral walls of liquid cooling board.
Adopt above-mentioned technical scheme, through 1 lateral wall setting at battery package box and 2 attached insulation boards 3 mutually with battery package module, and be provided with liquid cooling board 4 on 3 lateral walls of insulation board, be provided with the water-cooling cavity between liquid cooling board 4 and the insulation board 3, be connected with feed liquor pipe 5 and drain pipe 6 on the water-cooling cavity respectively, therefore, can circulate to the water-cooling cavity through feed liquor pipe 5 and drain pipe 6 and let in the coolant liquid, thereby realize the heat dissipation to battery package module 2 under high temperature environment, through it has heating film 7 to paste on 4 lateral walls of liquid cooling board, can realize heating the heat conduction liquid in the water-cooling cavity through heating film 7 under low temperature environment, thereby give the battery module with the heat transfer, so that realize the heat exchange management of battery module. According to the utility model, water cooling and heating measures are integrated on the side wall of the battery pack box body 1 from the bottom of the lower box body, so that active heat management and heat transmission with the outside through the lower box body are avoided, and the energy efficiency of the battery system is greatly improved, thereby improving the cruising mileage of the electric vehicle in summer or winter, reducing the cost of the battery system and improving the product competitiveness.
In one embodiment, referring to fig. 3, a water cooling channel 41 is formed by recessing the liquid cooling plate 4 toward one surface of the insulating plate 3, and the water cooling channel 41 and the insulating plate 3 are sealed to form a water cooling chamber. By adopting the structure, the liquid cooling plate 4 can be molded into the water cooling runner 41 through a mold casting process, and the water cooling runner 41 and the insulating plate 3 can be closed to form a water cooling cavity by attaching the liquid cooling plate 4 to the outer side of the insulating plate 3, so that the whole battery pack thermal management assembly is simple in structure and low in cost.
As a preferred embodiment of the present invention, the water-cooling flow channel 41 includes a plurality of cavities 411 that are connected to each other, the top of the cavity 411 is respectively provided with a liquid inlet 42 and a liquid outlet 43, the liquid inlet 42 is connected to the liquid inlet pipe 5, and the liquid outlet 43 is connected to the liquid outlet pipe 6. By adopting the technical scheme, after the liquid cooling plate 4 is attached to the insulating plate 3, the cooling medium can be introduced into the water cooling cavity through the liquid inlet 42 and the liquid outlet 43, and the liquid inlet pipe 5 and the liquid outlet pipe 6 can be conveniently and easily inserted into the liquid inlet 42 and the liquid outlet 43, so that the circulating flow of the cooling medium is established by the liquid inlet pipe 5, the liquid outlet pipe 6, the water cooling cavity and the circulating water pump. Meanwhile, the water-cooling channel 41 comprises a plurality of mutually communicated concave cavities 411, so that the cooling medium entering the water-cooling channel 41 can quickly fill the whole water-cooling cavity, and the heat exchange of the battery pack module 2 is quickly realized.
In order to avoid the leakage of the cooling medium in the water-cooling chamber from the space between the liquid-cooling plate 4 and the insulating plate 3 after the liquid-cooling plate 4 is attached to the insulating plate 3, the technical scheme adopted by the utility model is that a sealing ring 44 is arranged outside the water-cooling chamber between the liquid-cooling plate 4 and the insulating plate 3. Therefore, the liquid cooling plate 4 and the insulating plate 3 can be sufficiently sealed, and the cooling medium in the water cooling cavity is prevented from seeping.
In order to realize the modular design of the water cooling structure, the liquid cooling plate 4, the insulation and battery pack box body 1 are locked through bolts, so that the heat management structure is simple on one hand, and the maintenance and the disassembly are convenient on the other hand.
In order to realize the rapid heat exchange of the battery pack module 2, the heat-conducting silicon sheet 8 is arranged between the insulating plate 3 and the battery pack module 2, so that heat released by the battery pack module 2 can be rapidly absorbed and taken away by a circulating cooling medium flowing in a water-cooling cavity through the heat-conducting silicon sheet 8 and the insulating plate 3 in a high-temperature environment, and the battery pack module 2 is cooled. Under low temperature environment, heat through heating film 7 production heats the coolant in the water-cooling chamber for coolant loops through insulation board 3 and heat conduction silica gel piece 8 and transmits fast to battery package module 2, thereby makes battery package module 2 absorb heat.
It should be noted that, in the process of heating the battery pack, the water-cooling cavity is filled with heat-conducting liquid, and the heat-conducting liquid does not flow circularly, so that the heat-conducting liquid in the water-cooling cavity is heated rapidly.
In the present invention, the heating film 7 is a PI heating film 7, and the heating tab 71 is attached to the heating film 7, and the PI heating film 7 can provide thermal stability over a wide temperature range and a faster response of the quality thermally delivered to the surroundings.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides a battery package thermal management assembly, includes battery package box (1), be provided with a plurality of battery package modules (2) in battery package box (1), its characterized in that: the battery package box (1) lateral wall is provided with insulation board (3), battery package box (1) lateral wall is provided with insulation board (3) that contact with battery package module (2), be provided with liquid cooling board (4) on insulation board (3) lateral wall, be provided with the water-cooling cavity between liquid cooling board (4) and insulation board (3), be connected with feed liquor pipe (5) and drain pipe (6) on the water-cooling cavity respectively, liquid cooling board (4) lateral wall is attached to have heating film (7).
2. The battery pack thermal management assembly of claim 1, wherein: one surface of the liquid cooling plate (4) facing the insulating plate (3) is sunken to form a water cooling runner (41), and the water cooling runner (41) and the insulating plate (3) are sealed to form the water cooling cavity.
3. The battery pack thermal management assembly of claim 2, wherein: the water-cooling flow channel (41) comprises a plurality of cavities (411) which are communicated with each other, the top of each cavity (411) is provided with a liquid inlet (42) and a liquid outlet (43), the liquid inlet (42) is connected with the liquid inlet pipe (5), and the liquid outlet (43) is connected with the liquid outlet pipe (6).
4. A battery pack thermal management assembly according to claim 3, wherein: and a sealing ring (44) is arranged outside the water cooling cavity between the liquid cooling plate (4) and the insulating plate (3).
5. The battery pack thermal management assembly of claim 4, wherein: the liquid cooling plate (4), the insulation and battery pack box body (1) are locked through bolts.
6. The battery pack thermal management assembly of claim 1, wherein: and a heat-conducting silica gel sheet (8) is also arranged between the insulating plate (3) and the battery pack module (2).
7. The battery pack thermal management assembly of claim 1, wherein: the heating film (7) is a PI heating film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121328680.1U CN215496858U (en) | 2021-06-15 | 2021-06-15 | Battery package thermal management assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121328680.1U CN215496858U (en) | 2021-06-15 | 2021-06-15 | Battery package thermal management assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215496858U true CN215496858U (en) | 2022-01-11 |
Family
ID=79718808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121328680.1U Active CN215496858U (en) | 2021-06-15 | 2021-06-15 | Battery package thermal management assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215496858U (en) |
-
2021
- 2021-06-15 CN CN202121328680.1U patent/CN215496858U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231207 Address after: 441000 building 6, international innovation industry base, No.49 Dengcheng Avenue, high tech Zone, Xiangyang City, Hubei Province Patentee after: Dongbo New Energy Technology Co.,Ltd. Address before: 430000 floors 11-12, Wuyin Jingkai building, 68 Chuangye Road, Wuhan Economic Development Zone, Hubei Province Patentee before: Wuhan Dongbo smart new energy technology Co.,Ltd. |