CN117199618A - Two-phase immersed cooling battery pack - Google Patents
Two-phase immersed cooling battery pack Download PDFInfo
- Publication number
- CN117199618A CN117199618A CN202311259936.1A CN202311259936A CN117199618A CN 117199618 A CN117199618 A CN 117199618A CN 202311259936 A CN202311259936 A CN 202311259936A CN 117199618 A CN117199618 A CN 117199618A
- Authority
- CN
- China
- Prior art keywords
- spacer
- battery pack
- control system
- direct cooling
- temperature
- 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.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 96
- 125000006850 spacer group Chemical group 0.000 claims abstract description 64
- 239000000463 material Substances 0.000 claims abstract description 49
- 230000008859 change Effects 0.000 claims abstract description 36
- 239000007791 liquid phase Substances 0.000 claims abstract description 36
- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 239000012071 phase Substances 0.000 claims abstract description 27
- 238000001704 evaporation Methods 0.000 claims abstract description 15
- 230000008020 evaporation Effects 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims description 43
- 239000003507 refrigerant Substances 0.000 claims description 40
- 238000005507 spraying Methods 0.000 claims description 33
- 239000007921 spray Substances 0.000 claims description 13
- 238000012544 monitoring process Methods 0.000 claims description 12
- 230000002159 abnormal effect Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000005855 radiation Effects 0.000 description 9
- 230000000630 rising effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000007654 immersion Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012782 phase change material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- Secondary Cells (AREA)
Abstract
The invention discloses a two-phase immersed cooling battery pack, which relates to the technical field of battery core cooling and comprises a box body, a battery core, a spacer and a direct cooling mechanism; the battery box comprises a box body and is characterized in that a plurality of battery cells are arranged in the box body, the battery cells are arranged in a plurality of rows and are mutually spaced, and spacers are arranged between every two adjacent battery cells in the same row; a storage cavity for storing liquid phase change materials is arranged in the middle of the spacer, the storage cavity penetrates through the spacer, and an evaporation port communicated with the storage cavity is arranged at the top of the spacer; the direct cooling mechanism comprises a direct cooling plate, and the direct cooling plate corresponds to the evaporation port. The invention has the advantages that: the temperature rise of the battery cells is effectively reduced, and meanwhile, the transmission of thermal runaway among the battery cells is effectively prevented through the spacer.
Description
Technical Field
The invention relates to the technical field of electric core cooling, in particular to a two-phase immersed cooling battery pack.
Background
The current market has higher and higher requirements on high-rate quick charging, not only has set forth requirements on the battery cell, but also has set forth requirements on thermal management, the temperature of the battery cell rises fast when the battery cell is charged quickly at high rate, the alarm temperature of the battery cell can be reached soon, the battery cell is difficult to be cooled quickly by a conventional liquid cooling plate cooling mode, and the cooling efficiency is insufficient to support the battery cell to realize high-rate quick charging.
The patent document with the publication number of CN218996858U discloses an energy storage device, which comprises a box body, a battery cell group, a liquid pump, a nozzle and a heat radiation plate, wherein the battery cell group is accommodated in an accommodating cavity of the box body, a liquid phase-change heat radiation material is arranged in the accommodating cavity, the liquid pump can transmit the phase-change heat radiation material to the nozzle from the accommodating cavity to be sprayed out, so that the phase-change heat radiation material contacts with the surface of the battery cell group, the heat radiation plate can be a water-cooling heat radiation plate or an air-cooling heat radiation plate, and the phase-change heat radiation material is vaporized and rises to be in contact with the heat radiation plate after absorbing heat of the battery cell group, and then flows back into the accommodating cavity.
The existing two-phase submerged cooling battery pack has the following defects: 1) The multiple electric cores in the electric core group are contacted with each other, and thermal runaway is easy to transfer between the electric cores; 2) The phase-change heat-dissipating material used for spraying comes from the accommodating cavity, when the battery core heats, the phase-change heat-dissipating material can absorb the heat of the battery core and the temperature rises, and when the phase-change heat-dissipating material is used for spraying, the cooling effect is poor.
Disclosure of Invention
The invention aims to solve the technical problems of effectively reducing the temperature rise of the battery cells and preventing the transmission of thermal runaway among the battery cells.
The invention solves the technical problems by the following technical means: a two-phase immersed cooling battery pack comprises a box body, an electric core, a spacer and a direct cooling mechanism; the battery box comprises a box body and is characterized in that a plurality of battery cells are arranged in the box body, the battery cells are arranged in a plurality of rows and are mutually spaced, and spacers are arranged between every two adjacent battery cells in the same row; a storage cavity for storing liquid phase change materials is arranged in the middle of the spacer, the storage cavity penetrates through the spacer, and an evaporation port communicated with the storage cavity is arranged at the top of the spacer; the direct cooling mechanism comprises a direct cooling plate, and the direct cooling plate corresponds to the evaporation port. The liquid phase change material can be contacted with two adjacent electric cores from two sides of the spacer to realize immersed cooling, and the electric core temperature is controlled by liquefying and refluxing after the liquid phase change material is cooled by utilizing the evaporation heat absorption of the liquid phase change material and combining a direct cooling mechanism, so that the electric core temperature rise is effectively reduced, and meanwhile, the thermal runaway is effectively prevented from being transmitted between the electric cores through the spacer.
Preferably, the two-phase immersed cooling battery pack further comprises a spraying mechanism and a liquid outlet, wherein the spraying mechanism and the liquid outlet are respectively communicated with the box body, and the box body, the spraying mechanism and the liquid outlet can be connected with a liquid phase change material storage device outside the battery pack to form a circulation passage. The liquid phase change material circulates between the battery pack and an external storage device, the cooling effect is good, the liquid phase change material scattered at the bottom of the box body after spraying can be recycled, and the material utilization efficiency is improved.
Preferably, the spraying mechanism comprises spraying pipes, a plurality of spraying pipes are respectively arranged in gaps of the battery cells in each row and outside the battery cells in the two outermost rows, and the spraying pipes extend along the length direction of the battery cell rows.
Preferably, the both sides of spacer are equipped with the intercommunication respectively the filling port of storing the chamber, be provided with pressure sensor in the storing chamber of spacer, the both sides of shower are equipped with the side spout respectively corresponding to the filling port of each spacer, pressure sensor with the control system is all connected to the side spout. The pressure sensor can detect the storage quantity of the liquid phase change material in each spacer, and the liquid can be timely supplemented through the spray pipe when the storage quantity is insufficient, so that the quantity of the liquid phase change material stored in each spacer is basically consistent, the temperature uniformity among the battery cells is ensured, and the service life of the battery is effectively prolonged.
Preferably, the liquid replenishing control method of the two-phase immersed cooling battery pack comprises the following steps: the pressure sensor detects the pressure in the storage cavity and sends the pressure to the control system, when the pressure in the storage cavity of a certain spacer is smaller than a set value, the control system opens a side nozzle corresponding to the spacer, and liquid phase change material is injected into the storage cavity of the spacer through the filling port until the set pressure value is reached, and then the side nozzle is closed.
Preferably, a plurality of electric cores are arranged in each row and used as temperature monitoring points, the temperature monitoring points are provided with temperature sensors, the top of the spray pipe is respectively provided with an upper nozzle corresponding to each temperature monitoring point, and the temperature sensors and the upper nozzles are connected with a control system. The temperature sensor can detect the temperature of the battery cell of the temperature monitoring point in real time, can lock the local temperature rising point when the temperature rise is abnormal, and can spray and cool the local temperature rising point, and the rest positions are not sprayed.
Preferably, the upper nozzle control of the two-phase submerged cooling battery pack comprises the following steps:
step one, a temperature sensor detects the initial temperature of a battery cell and sends the initial temperature to a control system;
step two, detecting the temperature of the battery cell once every set time by a temperature sensor and sending the temperature to a control system;
step three, the control system calculates the temperature rise of the battery cell at intervals of set time;
judging whether the temperature rise of the battery cell at intervals of set time is larger than a set value or not by the control system, if so, judging that the temperature rise is abnormal, and if not, ending;
fifthly, the control system searches local temperature rise points according to the temperature sensor detecting abnormal temperature rise;
and step six, the control system opens the upper nozzle at the position corresponding to the local temperature rise point until the temperature rise of the battery cell at intervals of set time is smaller than or equal to the set value, and then closes the upper nozzle.
Preferably, one end of the spray pipe is provided with a liquid inlet; the spraying mechanism further comprises liquid inlet pipes, the liquid inlet pipes are respectively connected with liquid inlet ports of the spraying pipes through a plurality of branches, and the total liquid inlet ports of the liquid inlet pipes penetrate out of the box body.
Preferably, a plurality of direct cooling plates are respectively arranged above each cell array, the direct cooling plates extend along the length direction of the cell array, and each direct cooling plate corresponds to the evaporation port of all the spacers in one array; a cooling channel is arranged in the direct cooling plate, and one end of the direct cooling plate is provided with a refrigerant inlet and a refrigerant outlet which are communicated with the cooling channel; the direct cooling mechanism also comprises a direct cooling plate refrigerant inlet pipe and a refrigerant outlet pipe; the refrigerant inlet pipe is respectively connected with the refrigerant inlets of the direct cooling plates through a plurality of branches, and the total inlet of the refrigerant inlet pipe penetrates out of the box body; the refrigerant outlet pipe is respectively connected with the refrigerant outlets of the direct cooling plates through a plurality of branches, and the total outlet of the refrigerant outlet pipe penetrates out of the box body; the direct cooling plate, the refrigerant inlet pipe and the refrigerant outlet pipe can be connected with a refrigerant heat exchange device outside the battery pack to form a circulation passage.
Preferably, the spacer is made of ABS material. Ensuring the manufacturability and rigidity of the model.
The invention has the advantages that:
1. the liquid phase change material can be contacted with two adjacent electric cores from two sides of the spacer to realize immersed cooling, and the electric core temperature is controlled by liquefying and refluxing after the liquid phase change material is cooled by utilizing the evaporation heat absorption of the liquid phase change material and combining a direct cooling mechanism, so that the electric core temperature rise is effectively reduced, and meanwhile, the thermal runaway is effectively prevented from being transmitted between the electric cores through the spacer.
2. The liquid phase change material circulates between the battery pack and an external storage device, the cooling effect is good, the liquid phase change material scattered at the bottom of the box body after spraying can be recycled, and the material utilization efficiency is improved.
3. The pressure sensor can detect the storage quantity of the liquid phase change material in each spacer, and the liquid can be timely supplemented through the spray pipe when the storage quantity is insufficient, so that the quantity of the liquid phase change material stored in each spacer is basically consistent, the temperature uniformity among the battery cells is ensured, and the service life of the battery is effectively prolonged.
4. The temperature sensor can detect the temperature of the battery cell of the temperature monitoring point in real time, can lock the local temperature rising point when the temperature rise is abnormal, and can spray and cool the local temperature rising point, and the rest positions are not sprayed.
Drawings
Fig. 1 is an isometric view of a two-phase immersion cooling battery pack according to an embodiment of the present invention.
Fig. 2 is a schematic top view of a two-phase immersion cooling battery pack according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of the correspondence between a cell and a spacer according to an embodiment of the present invention.
FIG. 4 is an isometric view of a spacer according to an embodiment of the present invention.
Fig. 5 is a schematic diagram of pipeline connection between the direct cooling mechanism and the spraying mechanism according to an embodiment of the present invention.
Fig. 6 is a schematic diagram of correspondence between a cell, a spacer, a direct cooling plate and a shower according to an embodiment of the present invention.
Fig. 7 is an enlarged schematic view of a portion of an embodiment of the present invention, a cell, a spacer, a direct chill plate, and a shower.
Fig. 8 is a schematic diagram of a correspondence relationship between a temperature sensor and a shower pipe according to an embodiment of the present invention.
Fig. 9 is a flow chart of a method of controlling the upper nozzle of a two-phase immersion cooling battery pack according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
As shown in fig. 1 and 2, the embodiment of the invention discloses a two-phase immersed cooling battery pack, which comprises a box body 1, a battery core 2, a spacer 3, a direct cooling mechanism 4, a spraying mechanism 5 and a liquid outlet 6.
The inside of the box body 1 is provided with a plurality of electric cores 2, the electric cores 2 are arranged in a plurality of rows, the rows are mutually spaced, a spacer 3 for storing liquid phase change materials is arranged between every two adjacent electric cores 2 in the same row, and the spacer 3 effectively prevents the transmission of thermal runaway among the electric cores 2; the direct cooling mechanism 4 is used for condensing the evaporated phase change material back to the liquid state and returning the liquid state to the spacer 3, and the temperature of the battery cell 2 is controlled by utilizing the combination of the evaporation heat absorption of the liquid phase change material and the direct cooling mechanism 4 to cool the liquid phase change material and then liquefy and reflux the liquid phase change material, so that the temperature rise of the battery cell 2 is effectively reduced; the spraying mechanism 5 and the liquid outlet 6 are respectively communicated with the box body 1 from two sides of the box body 1, the spraying mechanism 5 and the liquid outlet 6 can be connected with a liquid phase change material storage device outside the battery pack to form a circulation passage, the spraying mechanism 5 is used for spraying the liquid phase change material on the battery cell 2, the liquid phase change material scattered at the bottom of the box body 1 after spraying can be discharged through the liquid outlet 6, so that the liquid phase change material can be recycled, and the material utilization efficiency is improved.
As shown in fig. 3 and 4, two sides of the spacer 3 are respectively bonded with two adjacent cells 2, and the spacer 3 is made of an ABS material, so that the manufacturability and the rigidity of the model are ensured; a storage cavity 31 for storing liquid phase change materials is arranged in the middle of the spacer 3, the storage cavity 31 penetrates through the spacer 3, the liquid phase change materials can contact two adjacent electric cores 2 from two sides of the spacer 3, and an evaporation port 32 communicated with the storage cavity 31 is arranged at the top of the spacer 3; two sides of the spacer 3 are respectively provided with a filling opening 33 communicated with the storage cavity 31 for filling liquid phase change material into the storage cavity 31.
As shown in fig. 5 to 7, the direct cooling mechanism 4 includes a direct cooling plate 41, a refrigerant inlet pipe 42, and a refrigerant outlet pipe 43; the plurality of direct cooling plates 41 are respectively arranged above the battery cell columns, the direct cooling plates 41 extend along the length direction of the battery cell columns, and each direct cooling plate 41 corresponds to the evaporation port 32 of all the spacers 3 in one column; a cooling channel is arranged in the direct cooling plate 41, and one end of the direct cooling plate 41 is provided with a refrigerant inlet 411 and a refrigerant outlet 412 which are communicated with the cooling channel; the refrigerant inlet pipe 42 is respectively connected with the refrigerant inlets 411 of the direct cooling plates 41 through a plurality of branches, and the total inlet of the refrigerant inlet pipe 42 penetrates out of the box body 1; the refrigerant outlet pipe 43 is respectively connected with the refrigerant outlets 412 of the direct cooling plates 41 through a plurality of branches, and the total outlet of the refrigerant outlet pipe 43 penetrates out of the box body 1; the direct cooling plate 41, the refrigerant inlet pipe 42 and the refrigerant outlet pipe 43 can be connected with a refrigerant heat exchange device outside the battery pack to form a circulation passage, and the refrigerant can adopt various mediums such as water, air and the like.
In the embodiment, the liquid phase change material adopts the fluorinated liquid with the boiling point of 55 ℃, when the temperature of the battery core 2 exceeds 55 ℃, the fluorinated liquid evaporates to absorb a large amount of heat, so that the battery core 2 can be rapidly cooled, evaporated gas passes through the evaporation port 32 and then reaches the direct cooling plate 41, the liquid is condensed on the direct cooling plate 41, the condensed fluorinated liquid falls under the action of gravity and returns to the storage cavity 31 through the evaporation port 32;
the spraying mechanism 5 comprises a spraying pipe 51 and a liquid inlet pipe 52; the plurality of spraying pipes 51 are respectively arranged in the gaps of the battery cells 2 in each row and outside the battery cells 2 in the outermost two rows, the spraying pipes 51 extend along the length direction of the battery cell rows, and one end of each spraying pipe 51 is provided with a liquid inlet 511; the liquid inlet pipe 52 is connected to the liquid inlet 511 of each spray pipe 51 through a plurality of branches, and the total liquid inlet of the liquid inlet pipe 52 passes out of the case 1.
A pressure sensor is arranged in the storage cavity 31 of each spacer 3, side nozzles 512 are respectively arranged at the two sides of the spray pipe 51 corresponding to the positions of the filling openings 33 of each spacer 3, and the pressure sensor and the side nozzles 512 are connected with a control system; the pressure sensor can detect the storage amount of the liquid phase change material in each spacer 3, and when the storage amount is insufficient, the liquid can be timely supplemented through the spray pipe 51, so that the liquid phase change material stored in each spacer 3 is basically consistent, the temperature uniformity among the battery cells 2 is ensured, and the service life of the battery is effectively prolonged.
The side nozzle control method of the two-phase immersed cooling battery pack comprises the following steps: the pressure sensor detects the pressure in the storage cavity 31 and sends the pressure to the control system, when the pressure in the storage cavity 31 of a certain spacer 3 is smaller than a set value, the control system opens the side nozzle 512 corresponding to the spacer 3, and injects the liquid phase change material into the storage cavity 31 of the spacer 3 through the filling port 33 until the set pressure value is reached, and then closes the side nozzle 512.
As shown in fig. 8, a plurality of electric cores 2 are arranged in each row as temperature monitoring points 21, the temperature monitoring points 21 are provided with temperature sensors, in this embodiment, the temperature sensors adopt patch thermocouples, the top of the spray pipe 51 is respectively provided with an upper nozzle 513 corresponding to the positions of the temperature monitoring points 21, and the temperature sensors and the upper nozzle 513 are both connected with a control system; the temperature sensor can detect the temperature of the battery cell of the temperature monitoring point in real time, can lock the local temperature rising point when the temperature rise is abnormal, and can spray and cool the local temperature rising point, and the rest positions are not sprayed.
As shown in fig. 9, the method for controlling the upper nozzle of the two-phase immersion cooling battery pack comprises the following steps:
step one, a temperature sensor detects the initial temperature of a battery cell and sends the initial temperature to a control system;
step two, the temperature sensor detects the temperature of the battery cell once every 10 seconds and sends the temperature to the control system;
step three, the control system calculates the temperature rise of the battery cell every 10 seconds;
judging whether the temperature rise of the battery cell is greater than 0.5 ℃ every 10 seconds by the control system, if so, judging that the temperature rise is abnormal, and if not, ending;
fifthly, the control system searches local temperature rise points according to the temperature sensor detecting abnormal temperature rise;
step six, the control system opens the upper nozzle 513 at the position corresponding to the local temperature rise point until the temperature rise of the battery cell at intervals of 10 seconds is less than or equal to 0.5 ℃, and closes the upper nozzle 513.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A two-phase submerged cooling battery pack, characterized by: comprises a box body, an electric core, a spacer and a direct cooling mechanism; the battery box comprises a box body and is characterized in that a plurality of battery cells are arranged in the box body, the battery cells are arranged in a plurality of rows and are mutually spaced, and spacers are arranged between every two adjacent battery cells in the same row; a storage cavity for storing liquid phase change materials is arranged in the middle of the spacer, the storage cavity penetrates through the spacer, and an evaporation port communicated with the storage cavity is arranged at the top of the spacer; the direct cooling mechanism comprises a direct cooling plate, and the direct cooling plate corresponds to the evaporation port.
2. The two-phase submerged cooling battery pack of claim 1, wherein: the two-phase immersed cooling battery pack also comprises a spraying mechanism and a liquid outlet, wherein the spraying mechanism and the liquid outlet are respectively communicated with the box body, and the box body, the spraying mechanism and the liquid outlet can be connected with a liquid phase change material storage device outside the battery pack to form a circulation passage.
3. The two-phase submerged cooling battery pack of claim 2, wherein: the spraying mechanism comprises spraying pipes which are respectively arranged in gaps of all rows of electric cores and outside the outermost two rows of electric cores, and the spraying pipes extend along the length direction of the electric core rows.
4. A two-phase submerged cooling battery pack according to claim 3, characterized in that: the utility model discloses a shower, including spacer, shower, control system, pressure sensor, control system, spacer's both sides are equipped with the intercommunication respectively the filling port of storage chamber, be provided with pressure sensor in the storage chamber of spacer, the both sides of shower correspond the filling port of each spacer and put and be equipped with the side spout respectively, pressure sensor with the control system is all connected to the side spout.
5. The two-phase submerged cooling battery pack of claim 4, wherein: the liquid replenishing control method of the two-phase immersed cooling battery pack comprises the following steps of: the pressure sensor detects the pressure in the storage cavity and sends the pressure to the control system, when the pressure in the storage cavity of a certain spacer is smaller than a set value, the control system opens a side nozzle corresponding to the spacer, and liquid phase change material is injected into the storage cavity of the spacer through the filling port until the set pressure value is reached, and then the side nozzle is closed.
6. A two-phase submerged cooling battery pack according to claim 3, characterized in that: each row is provided with a plurality of battery cells as temperature monitoring points, the temperature monitoring points are provided with temperature sensors, the top of the spray pipe is respectively provided with an upper nozzle corresponding to each temperature monitoring point, and the temperature sensors and the upper nozzles are connected with a control system.
7. The two-phase submerged cooling battery pack of claim 6, wherein: the upper nozzle control of the two-phase immersed cooling battery pack comprises the following steps:
step one, a temperature sensor detects the initial temperature of a battery cell and sends the initial temperature to a control system;
step two, detecting the temperature of the battery cell once every set time by a temperature sensor and sending the temperature to a control system;
step three, the control system calculates the temperature rise of the battery cell at intervals of set time;
judging whether the temperature rise of the battery cell at intervals of set time is larger than a set value or not by the control system, if so, judging that the temperature rise is abnormal, and if not, ending;
fifthly, the control system searches local temperature rise points according to the temperature sensor detecting abnormal temperature rise;
and step six, the control system opens the upper nozzle at the position corresponding to the local temperature rise point until the temperature rise of the battery cell at intervals of set time is smaller than or equal to the set value, and then closes the upper nozzle.
8. A two-phase submerged cooling battery pack according to claim 3, characterized in that: one end of the spray pipe is provided with a liquid inlet; the spraying mechanism further comprises liquid inlet pipes, the liquid inlet pipes are respectively connected with liquid inlet ports of the spraying pipes through a plurality of branches, and the total liquid inlet ports of the liquid inlet pipes penetrate out of the box body.
9. The two-phase submerged cooling battery pack of claim 1, wherein: the direct cooling plates are respectively arranged above the battery cell columns, extend along the length direction of the battery cell columns, and each direct cooling plate corresponds to the evaporation port of all the spacers in one column; a cooling channel is arranged in the direct cooling plate, and one end of the direct cooling plate is provided with a refrigerant inlet and a refrigerant outlet which are communicated with the cooling channel; the direct cooling mechanism also comprises a direct cooling plate refrigerant inlet pipe and a refrigerant outlet pipe; the refrigerant inlet pipe is respectively connected with the refrigerant inlets of the direct cooling plates through a plurality of branches, and the total inlet of the refrigerant inlet pipe penetrates out of the box body; the refrigerant outlet pipe is respectively connected with the refrigerant outlets of the direct cooling plates through a plurality of branches, and the total outlet of the refrigerant outlet pipe penetrates out of the box body; the direct cooling plate, the refrigerant inlet pipe and the refrigerant outlet pipe can be connected with a refrigerant heat exchange device outside the battery pack to form a circulation passage.
10. The two-phase submerged cooling battery pack of claim 1, wherein: the spacer is made of ABS material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311259936.1A CN117199618A (en) | 2023-09-26 | 2023-09-26 | Two-phase immersed cooling battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311259936.1A CN117199618A (en) | 2023-09-26 | 2023-09-26 | Two-phase immersed cooling battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117199618A true CN117199618A (en) | 2023-12-08 |
Family
ID=88997920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311259936.1A Pending CN117199618A (en) | 2023-09-26 | 2023-09-26 | Two-phase immersed cooling battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117199618A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118073718A (en) * | 2024-04-25 | 2024-05-24 | 山东电工时代能源科技有限公司 | Immersed liquid-cooled battery pack and cooling control method thereof |
-
2023
- 2023-09-26 CN CN202311259936.1A patent/CN117199618A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118073718A (en) * | 2024-04-25 | 2024-05-24 | 山东电工时代能源科技有限公司 | Immersed liquid-cooled battery pack and cooling control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114267907B (en) | Thermal safety management system for battery energy storage, control method and application thereof | |
| US20180083330A1 (en) | Cooling mechanism for batteries using l-v phase change materials | |
| CN106654430B (en) | One kind is based on power battery thermal management system in a low temperature of heat pipe and phase-change material | |
| CN208208922U (en) | It is a kind of can be to the device that power battery cools and heats | |
| CN211858718U (en) | Perfluorohexanone liquid flow temperature control and fire control battery compartment suitable for energy storage power station | |
| CN117199618A (en) | Two-phase immersed cooling battery pack | |
| WO2022028433A1 (en) | Heat pipe type thermal management device and method for energy storage battery module | |
| Liu et al. | Recent developments of thermal management strategies for lithium‐ion batteries: a state‐of‐the‐art review | |
| CN111668571A (en) | Battery module | |
| CN114639866A (en) | Lithium ion battery thermal management device based on composite phase change material and liquid cooling | |
| CN211719744U (en) | Battery package and car | |
| CN116130828B (en) | New energy automobile battery package cooling system | |
| CN201607078U (en) | Combined-type water energy storage device | |
| CN216648465U (en) | Combined energy storage monomer, energy storage cluster and energy storage device | |
| CN115966802A (en) | Battery heat radiation structure based on Tesla valve | |
| CN110544807A (en) | Liquid cooling system of power battery and control method thereof | |
| CN216773357U (en) | Battery with improved battery capacity | |
| CN207124217U (en) | A kind of box batteries with temperature control function | |
| CN212230578U (en) | Energy storage module with internal temperature equalization and external heat dissipation | |
| TWM599477U (en) | Smart internal circulation heat dissipation device of lithium battery | |
| CN109935942A (en) | A kind of temperature management system and method for Li-ion batteries piles | |
| CN216903112U (en) | A samming device and samming system for new forms of energy battery module | |
| CN116315288B (en) | Immersed energy storage battery box and battery cabinet thereof | |
| CN209763833U (en) | Phase change heat storage device | |
| CN221057506U (en) | Module cooling structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |