CN219163563U - Bottom structure of power battery pack, power battery pack and automobile - Google Patents
Bottom structure of power battery pack, power battery pack and automobile Download PDFInfo
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- CN219163563U CN219163563U CN202222595487.5U CN202222595487U CN219163563U CN 219163563 U CN219163563 U CN 219163563U CN 202222595487 U CN202222595487 U CN 202222595487U CN 219163563 U CN219163563 U CN 219163563U
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- plate
- water cooling
- battery pack
- cooling plate
- battery
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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 a bottom structure of a power battery pack, the power battery pack and an automobile, wherein the bottom structure of the power battery pack comprises a battery frame and a bottom member arranged below the battery frame, and the bottom member comprises a water cooling plate, a bottom plate and a filling template arranged between the water cooling plate and the bottom plate; the battery frame and the water cooling plate are both made of aluminum alloy, the bottom plate is a steel plate sheet metal part, and the filling type plate is a fiber rock material type plate. The battery water cooling plate can improve the overall bearing performance, vibration isolation performance and cooling efficiency of the battery water cooling plate, and can reduce the influence of the external environment temperature on the water cooling plate and the battery pack.
Description
Technical Field
The utility model relates to an automobile power battery pack, in particular to a bottom structure of the power battery pack, the power battery pack and an automobile.
Background
Currently, a power battery integration (CTP) technology carried by a new energy automobile has been widely used. In this integration technique, a water-cooled plate is typically attached to a box frame, and then a bottom plate is mounted below the water-cooled plate by inserting rivet nuts into the box frame. The water cooling plate can only bear through the connection mode with the box body frame, when the sub-module (non-standard module) reaches a certain size, the bearing capacity of the water cooling plate is weak at the central position of the module area, and the vibration test requirement cannot be met. Meanwhile, the large surfaces of the water cooling plate and the bottom plate are not contacted, air flows, and the water cooling plate is easily affected by the outside temperature, so that the cooling efficiency is affected. Therefore, there is a need for an improvement in the structure of the water cooling plate of the power battery pack.
CN216488270U discloses a "thermal insulation coating power battery pack and car", including box, protective coating and insulating layer, wherein: the inside battery module that is provided with of box, the surface of box bottom is equipped with protective coating, the insulating layer pastes protective coating's lower surface. Through covering double-deck heat preservation in the bottom half, sprayed waterborne reflection heat insulating coating promptly and spread the thermal-insulated bubble cotton of pasting again, constitute load heat insulation structure, improved battery package heat insulation structure, reduce thermal-insulated part, realize battery package structure lightweight, can also reduce the influence of radiation to battery package temperature simultaneously.
CN111463519a discloses "a battery buffering heat-insulating cooling plate, a power battery pack and an automobile", so as to reduce the possibility of occurrence of thermal runaway of the battery when the battery pack is mechanically impacted, avoid occurrence of thermal runaway, and improve the mechanical safety of the battery pack. This battery buffering separates heat cooling plate, battery buffering cooling plate is buckled a plurality of U die cavities of formation many times, and the formation includes: the heat insulation layer, the buffer support cooling layer and the bottom layer are connected in sequence; the buffer support cooling layer includes: the side wall frame is fixed on the bottom layer, the upper flat plate is arranged at the top of the side wall frame, the side wall frame and the upper flat plate form a containing space, a plurality of hollow cylinders which are arranged in a staggered mode are fixedly arranged in the containing space, and an inlet for cooling liquid to flow into the containing space and an outlet for cooling liquid to flow out of the containing space are formed in the side wall of the side wall frame.
Needless to say, the technical solutions disclosed in the above patent documents are all one advantageous attempt in the technical field.
Disclosure of Invention
The utility model aims to provide a bottom structure of a power battery pack, which can improve the overall bearing performance, vibration isolation performance and cooling efficiency of a battery water cooling plate and can reduce the influence of external environment temperature on the water cooling plate and the battery pack. A power battery pack having the bottom structure and an automobile having the power battery pack are also provided.
The utility model relates to a bottom structure of a power battery pack, which comprises a battery frame and a bottom component arranged below the battery frame, and is characterized in that: the bottom member includes a water cooled panel, a bottom panel, and a fill pattern disposed therebetween.
Further, the battery frame and the water cooling plate are both made of aluminum alloy, and the bottom plate is a steel plate sheet metal part.
Further, the water cooling plate is fixedly connected with the lower side of the battery frame through a rotary tapping riveting process (FDS process).
Further, the filling type plate is placed on the upper side of the bottom plate and is assembled together under the water-cooled plate.
Further, the filling type plate is a fiber rock material type plate.
Furthermore, the filling type plate is made of rock wool plates, and has good heat preservation, flame insulation and sound absorption performances.
Further, a 'Feng' shaped interval is arranged in the battery frame and is used for isolating the battery modules.
Further, the gap between the water cooling plate and the bottom plate is completely filled by the filling type plate.
The power battery pack comprises the bottom structure of the power battery pack.
The automobile comprises the power battery pack.
The utility model has the beneficial effects that:
the filling type plate with heat preservation, flame insulation and sound absorption performance is arranged between the water cooling plate and the bottom plate, so that the bearing capacity and the impact resistance of the water cooling plate can be improved, external heat can be effectively blocked when the battery pack works, the influence of the environment on the water cooling plate is reduced by absorbing the external heat, and the cooling efficiency of the water cooling plate is improved.
Drawings
FIG. 1 is a schematic view of the assembled position of a water cooling plate and a battery frame according to the present utility model;
fig. 2 is an exploded view of the structure of the present utility model.
In the figure (technical features indicated by the marks):
1-a battery frame, 2-a water cooling plate, 3-a filling type plate and 4-a bottom plate.
Detailed Description
The technical scheme of the utility model is described in detail below with reference to the accompanying drawings.
Referring to fig. 1 and 2, a bottom structure of a power battery pack includes a battery frame 1, a bottom member provided under the battery frame, and is characterized in that: the bottom member comprises a water cooled plate 2, a bottom plate 4 and a filling pattern 3 arranged therebetween.
The battery frame 1 and the water cooling plate 2 are made of aluminum alloy, and the bottom plate 4 is a steel plate sheet metal part.
The water cooling plate 2 is connected and fixed to the lower surface of the battery frame 1 by a rotational tapping riveting process (FDS process).
The filling pattern 3 is placed on top of the bottom plate 4 and assembled together under the water-cooled plate 2. Therefore, part of the water cooling plate can be stressed and transferred to the filling type plate and the bottom plate, so that the bearing capacity of the water cooling plate is improved; when the bottom of the battery pack is collided by external objects, collision energy is transmitted to the filling type plate through the bottom plate, so that the impact of the water cooling plate is reduced, and the mechanical protection capability is improved.
The filling pattern 3 is a fibrous rock material pattern. When the battery pack works, external heat can be effectively blocked, the influence of the environment on the water cooling plate is reduced by absorbing the external heat, and the cooling efficiency of the water cooling plate is improved.
The filling type plate 3 is made of rock wool board (Stone board) and has good heat preservation, flame-proof and sound absorption performances.
The battery frame 1 is internally provided with a 'Feng' -shaped interval for isolating the battery modules.
The gap between the water cooling plate 2 and the bottom plate 4 is completely filled by the filling type plate 3. The air circulation is not arranged between the water cooling plate and the bottom plate, so that the water cooling plate is not influenced by the external temperature, and the cooling efficiency is improved.
The power battery pack comprises the bottom structure of the power battery pack.
The automobile comprises the power battery pack.
Claims (5)
1. The bottom structure of the power battery pack comprises a battery frame (1) and a bottom component arranged below the battery frame, wherein a 'Feng' -shaped interval is arranged in the battery frame (1) and used for isolating battery modules,
the method is characterized in that: the bottom member comprises a water cooling plate (2), a bottom plate (4) and a filling template (3) arranged between the water cooling plate and the bottom plate; the gap between the water cooling plate (2) and the bottom plate (4) is completely filled by the filling template (3); the filling template (3) is a fibrolite material template; the filling type plate (3) is placed on the upper surface of the bottom plate (4) and is assembled below the water cooling plate (2) together.
2. The bottom structure of the power cell pack according to claim 1, wherein: the battery frame (1) and the water cooling plate (2) are made of aluminum alloy, and the bottom plate (4) is a steel plate sheet metal part.
3. The bottom structure of a power cell pack according to claim 1 or 2, characterized in that: the water cooling plate (2) is fixedly connected with the lower surface of the battery frame (1) through a rotary tapping riveting process FDS.
4. A power battery pack is characterized in that: a base structure comprising the power cell pack of any one of claims 1-3.
5. An automobile, characterized in that: comprising the power cell pack of claim 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222595487.5U CN219163563U (en) | 2022-09-29 | 2022-09-29 | Bottom structure of power battery pack, power battery pack and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222595487.5U CN219163563U (en) | 2022-09-29 | 2022-09-29 | Bottom structure of power battery pack, power battery pack and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219163563U true CN219163563U (en) | 2023-06-09 |
Family
ID=86639812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222595487.5U Active CN219163563U (en) | 2022-09-29 | 2022-09-29 | Bottom structure of power battery pack, power battery pack and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219163563U (en) |
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2022
- 2022-09-29 CN CN202222595487.5U patent/CN219163563U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing Patentee after: Deep Blue Automotive Technology Co.,Ltd. Address before: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing Patentee before: CHONGQING CHANGAN NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |