CN220873682U - Battery pack box for preventing thermal runaway from spreading - Google Patents
Battery pack box for preventing thermal runaway from spreading Download PDFInfo
- Publication number
- CN220873682U CN220873682U CN202322269223.5U CN202322269223U CN220873682U CN 220873682 U CN220873682 U CN 220873682U CN 202322269223 U CN202322269223 U CN 202322269223U CN 220873682 U CN220873682 U CN 220873682U
- Authority
- CN
- China
- Prior art keywords
- cooling plate
- liquid cooling
- liquid
- battery pack
- vertical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000007788 liquid Substances 0.000 claims abstract description 138
- 238000001816 cooling Methods 0.000 claims abstract description 117
- 239000000110 cooling liquid Substances 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims 1
- 230000001902 propagating effect Effects 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000002269 spontaneous effect Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The utility model belongs to the technical field of battery pack boxes, and particularly relates to a battery pack box for preventing thermal runaway from spreading, which comprises the following components: the box body, liquid cooling plate and baffle plate are arranged in the box body; the liquid cooling plate comprises a horizontal liquid cooling plate and a vertical liquid cooling plate; the horizontal liquid cooling plate is provided with a cooling liquid inlet and a cooling liquid outlet, and a horizontal liquid cooling plate runner from the cooling liquid inlet to the cooling liquid outlet is arranged on the horizontal liquid cooling plate; the plurality of vertical liquid cooling plates are arranged on the horizontal liquid cooling plates in parallel, a water inlet and a water outlet which are communicated with the horizontal liquid cooling plate flow channels are arranged at the bottom of each vertical liquid cooling plate, and a vertical liquid cooling plate flow channel from the water inlet to the water outlet is arranged on each vertical liquid cooling plate; the two ends of the vertical liquid cooling plate are provided with baffle plates, and the vertical liquid cooling plate, the horizontal liquid cooling plate and the baffle plates are connected to form an accommodating space with an upper end opening. The utility model can cool the thermal runaway battery cell or module or battery pack to prevent thermal runaway from spreading.
Description
Technical Field
The utility model belongs to the technical field of battery pack boxes, and particularly relates to a battery pack box for preventing thermal runaway from spreading.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
At present, the new energy automobile and battery industry is vigorously developed, the requirements of the industry on the new energy automobile and battery are increasingly improved, and as the storage quantity of the new energy automobile is continuously increased, the spontaneous combustion phenomenon of the new energy automobile is frequent, so that the technical problem of preventing the occurrence and the spreading of the thermal runaway of the new energy automobile and the battery is urgently needed to be solved. The battery cell thermal runaway is one of the root causes of spontaneous combustion of the new energy automobile, the prevention of the thermal runaway of the battery cell from spreading is one of the modes for effectively preventing the spontaneous combustion of the new energy automobile, the battery pack cooling mode in the current market is bottom liquid cooling or top liquid cooling, cooling liquid exists on one side of the battery cell and cannot wrap the battery cell, the battery cells depend on low heat conduction materials to slow down the thermal runaway for protection, the cooling liquid cannot wrap the battery cell, and heat cannot be taken away rapidly.
Disclosure of utility model
In order to overcome the defects in the prior art, the utility model provides a battery pack box body for preventing thermal runaway from spreading, which can rapidly take away heat generated when a battery cell or a module or a battery pack is in thermal runaway, cool the thermal runaway battery cell or the module or the battery pack and prevent the thermal runaway from spreading.
To achieve the above object, one or more embodiments of the present utility model provide the following technical solutions:
A first aspect of the present utility model provides a battery pack case for preventing thermal runaway from spreading, comprising: the box body, liquid cooling plate and baffle plate are arranged in the box body;
The liquid cooling plate comprises a horizontal liquid cooling plate and a vertical liquid cooling plate; the horizontal liquid cooling plate is provided with a cooling liquid inlet and a cooling liquid outlet, and a horizontal liquid cooling plate runner from the cooling liquid inlet to the cooling liquid outlet is arranged on the horizontal liquid cooling plate;
The plurality of vertical liquid cooling plates are arranged on the horizontal liquid cooling plates in parallel, a water inlet and a water outlet which are communicated with the horizontal liquid cooling plate flow channels are arranged at the bottom of each vertical liquid cooling plate, and a vertical liquid cooling plate flow channel from the water inlet to the water outlet is arranged on each vertical liquid cooling plate;
The two ends of the vertical liquid cooling plate are provided with baffle plates, and the vertical liquid cooling plate, the horizontal liquid cooling plate and the baffle plates are connected to form an accommodating space with an opening at the upper end.
Further, each vertical liquid cooling plate is respectively provided with a heating electronic component for melting the flow channel of the vertical liquid cooling plate.
Further, the heating electronic component is an eddy current heater.
Further, the heating electronic component is connected with a battery management system.
Further, the vertical liquid cooling plate, the horizontal liquid cooling plate and the baffle are connected in a welding mode.
Further, the box body is a rectangular body with an opening at the top.
Further, an upper cover matched and assembled with the box body is further arranged on the box body.
Further, the cooling liquid inlet and the cooling liquid outlet on the horizontal liquid cooling plate are respectively connected with the liquid inlet flow channel and the liquid outlet flow channel, the liquid inlet flow channel and the liquid outlet flow channel are arranged on two sides of the horizontal liquid cooling plate in parallel, and the liquid inlet flow channel and the liquid outlet flow channel are communicated through a plurality of sections of snake-shaped flow channels.
Further, the serpentine flow channel comprises a flat flow channel and a bent flow channel, the vertical liquid cooling plate is arranged above the flat flow channel of the serpentine flow channel, the water inlet and the water outlet at the bottom of the vertical liquid cooling plate are respectively communicated with the flat flow channel, and the vertical liquid cooling plate is arranged in parallel with the flat flow channel.
Further, the vertical liquid cooling plate flow channel is arranged in an n-shaped structure.
The one or more of the above technical solutions have the following beneficial effects:
According to the utility model, the vertical liquid cooling plate, the horizontal liquid cooling plate and the baffle are connected to form the accommodating space with the upper end opening, and the battery core, the module or the battery pack is placed in the accommodating space.
Additional aspects of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.
Fig. 1 is a partial structural view of a battery pack case for preventing thermal runaway from spreading according to embodiment 1.
Fig. 2 is a schematic diagram showing the structure of the liquid cooling plate and the baffle plate of embodiment 1.
Fig. 3 is a sectional view of a battery pack case for preventing thermal runaway from spreading according to embodiment 1.
Fig. 4 is an overall structural view of a battery pack case for preventing thermal runaway from spreading according to embodiment 1.
Fig. 5 is a partial sectional view of the liquid cooling plate of example 1.
Fig. 6 is a schematic view of the flow channel structure of the horizontal liquid cooling plate in embodiment 1.
Fig. 7 is a schematic view of a flow channel structure of a vertical liquid cooling plate in embodiment 1.
In the figure, 1, a box body; 2. a liquid cooling plate; 3. a cell or module or battery; 4. a vortex heater; 5. an upper cover; 6. a vertical liquid cooling plate; 7. a horizontal liquid cooling plate; 8. a cooling liquid inlet; 9. a cooling liquid outlet; 10. a baffle; 11. fastening screws or adhesives, 12, vertical liquid cooling plate flow channels; 13. a vertical liquid cooling plate runner water inlet; 14. and a vertical liquid cooling plate runner water outlet.
Detailed Description
The utility model will be further described with reference to the drawings and examples.
Example 1
As shown in fig. 1, the present utility model proposes a battery pack case for preventing thermal runaway from spreading, comprising: a tank body 1, a liquid cooling plate 2 and a baffle 10 which are arranged in the tank body 1;
The liquid cooling plate 2 comprises a horizontal liquid cooling plate 7 and a vertical liquid cooling plate 6; the horizontal liquid cooling plate 7 is fixed on a bottom plate in the box body 1, and is connected to the lower box body by means of crimping, bonding, welding and the like, or the horizontal liquid cooling plate 7 is of a box body structure, namely the bottom plate of the box body 1, a cooling liquid inlet 8 and a cooling liquid outlet 9 are arranged on the horizontal liquid cooling plate 7, and a horizontal liquid cooling plate flow channel from the cooling liquid inlet 8 to the cooling liquid outlet 9 is arranged on the horizontal liquid cooling plate;
As shown in fig. 2 and 3, a plurality of vertical liquid cooling plates 6 are arranged on a horizontal liquid cooling plate 7 in parallel, a water inlet and a water outlet which are communicated with a horizontal liquid cooling plate channel on the horizontal liquid cooling plate 7 are arranged at the bottom of each vertical liquid cooling plate 6, and a vertical liquid cooling plate channel from the water inlet to the water outlet is arranged on each vertical liquid cooling plate 6;
The two ends of the vertical liquid cooling plate are provided with baffle plates 10, and the vertical liquid cooling plate 6, the horizontal liquid cooling plate 7 and the baffle plates 10 are connected to form an accommodating space with an opening at the upper end.
Further, as shown in fig. 4, the box body 1 is a rectangular body with an open top, the box body 1 is further provided with an upper cover 5 assembled with the box body in a matched manner, the upper cover and the lower box body 1 are connected together by a fastening screw 11 or an adhesive to play a role in sealing the box body, and after the whole box system is assembled, the lower box body 1, the liquid cooling plate 2 and the upper cover 5 form an independent sealing space for accommodating the battery cell or the module or the battery pack 3.
Further, as shown in fig. 5, each vertical liquid cooling plate 6 is respectively provided with a heating electronic component for melting the flow channel 12 of the vertical liquid cooling plate, the heating electronic component can be the vortex heater 4, and the heating electronic component is connected with the battery management system.
Further, as shown in fig. 6, a cooling liquid inlet 8 and a cooling liquid outlet 9 on the horizontal liquid cooling plate 7 are arranged at the same end, the cooling liquid inlet 8 and the cooling liquid outlet 9 are respectively connected with a liquid inlet runner and a liquid outlet runner, and the liquid inlet runner and the liquid outlet runner are arranged at two sides of the horizontal liquid cooling plate 7 in parallel; the liquid inlet flow channel and the liquid outlet flow channel are communicated through a plurality of sections of serpentine flow channels, cooling liquid flows into the liquid flow channel from the cooling liquid inlet 8, flows into the liquid outlet flow channel after passing through the serpentine flow channel, and finally flows out of the liquid cooling plate from the cooling liquid outlet 9; the serpentine flow channel comprises a straight flow channel and a bent flow channel, the vertical liquid cooling plate 6 is arranged above the straight flow channel of the serpentine flow channel, a liquid inlet and a liquid outlet at the bottom are respectively communicated with the straight flow channel, and the vertical liquid cooling plate 6 is arranged in parallel with the straight flow channel.
Further, as shown in fig. 7, the vertical liquid cooling plate flow channel 12 is in an n-shaped structure, and the cooling liquid enters the vertical liquid cooling plate flow channel 12 from the vertical liquid cooling plate flow channel water inlet 13, flows upwards, flows horizontally, flows downwards to the vertical liquid cooling plate flow channel water outlet 14 and then enters the horizontal liquid cooling plate 7.
The working principle of the box body is as follows: when thermal runaway occurs in a single cell or module or battery pack 3, the vortex heater 4 (connected with the battery management system) receives a signal sent by the battery management system and instantaneously generates a large amount of heat to melt the vertical cold plate 6, and then the vortex heater 4 (connected with the battery management system) does not generate heat any more, so that insulating cooling liquid in the liquid cooling plate 2 is filled into a closed space for accommodating the cell or module or battery pack, the cell or module or battery pack 3 is soaked in the insulating cooling liquid, the occurrence of thermal runaway is slowed down, and the insulating cooling liquid and the heat generated when the cell or module or battery pack is carried away by the liquid cooling plate 2, so that a thermal runaway event is not diffused.
While the foregoing description of the embodiments of the present utility model has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the utility model, but rather, it is intended to cover all modifications or variations within the scope of the utility model as defined by the claims of the present utility model.
Claims (10)
1. A battery pack case for preventing thermal runaway from propagating, comprising: the box body, liquid cooling plate and baffle plate are arranged in the box body;
The liquid cooling plate comprises a horizontal liquid cooling plate and a vertical liquid cooling plate; the horizontal liquid cooling plate is provided with a cooling liquid inlet and a cooling liquid outlet, and a horizontal liquid cooling plate runner from the cooling liquid inlet to the cooling liquid outlet is arranged on the horizontal liquid cooling plate;
The plurality of vertical liquid cooling plates are arranged on the horizontal liquid cooling plates in parallel, a water inlet and a water outlet which are communicated with the horizontal liquid cooling plate flow channels are arranged at the bottom of each vertical liquid cooling plate, and a vertical liquid cooling plate flow channel from the water inlet to the water outlet is arranged on each vertical liquid cooling plate;
The two ends of the vertical liquid cooling plate are provided with baffle plates, and the vertical liquid cooling plate, the horizontal liquid cooling plate and the baffle plates are connected to form an accommodating space with an opening at the upper end.
2. The battery pack case for preventing thermal runaway from spreading according to claim 1, wherein each vertical liquid cooling plate is provided with a heat generating electronic component for melting the flow channel of the vertical liquid cooling plate.
3. The battery pack case for preventing thermal runaway propagation of claim 2, wherein the heat generating electronic component is an eddy current heater.
4. A battery pack case for preventing thermal runaway propagation as claimed in claim 3, wherein said heat generating electronic components are connected to a battery management system.
5. The battery pack case for preventing thermal runaway according to claim 1, wherein the vertical liquid cooling plate, the horizontal liquid cooling plate and the baffle are connected by welding.
6. The battery pack case for preventing thermal runaway propagation according to claim 1, wherein the case body is a rectangular body having an open top.
7. The battery pack case for preventing thermal runaway according to claim 6, wherein an upper cover assembled with the case body is further provided on the case body.
8. The battery pack case for preventing thermal runaway from spreading according to claim 1, wherein the cooling liquid inlet and the cooling liquid outlet on the horizontal liquid cooling plate are respectively connected with a liquid inlet runner and a liquid outlet runner, the liquid inlet runner and the liquid outlet runner are arranged on two sides of the horizontal liquid cooling plate in parallel, and the liquid inlet runner and the liquid outlet runner are communicated through a plurality of sections of serpentine runners.
9. The battery pack case for preventing thermal runaway propagation according to claim 8, wherein the serpentine flow path comprises a straight flow path and a bent flow path, the vertical liquid cooling plate is disposed above the straight flow path of the serpentine flow path, the water inlet and the water outlet at the bottom of the vertical liquid cooling plate are respectively communicated with the straight flow path, and the vertical liquid cooling plate is disposed in parallel with the straight flow path.
10. The battery pack case for preventing thermal runaway propagation of claim 9, wherein the vertical liquid cooling plate flow passage is provided in an n-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322269223.5U CN220873682U (en) | 2023-08-22 | 2023-08-22 | Battery pack box for preventing thermal runaway from spreading |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322269223.5U CN220873682U (en) | 2023-08-22 | 2023-08-22 | Battery pack box for preventing thermal runaway from spreading |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220873682U true CN220873682U (en) | 2024-04-30 |
Family
ID=90820087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322269223.5U Active CN220873682U (en) | 2023-08-22 | 2023-08-22 | Battery pack box for preventing thermal runaway from spreading |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220873682U (en) |
-
2023
- 2023-08-22 CN CN202322269223.5U patent/CN220873682U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |