CN219739076U - Immersed liquid cooling battery system and immersed liquid cooling battery temperature control system - Google Patents
Immersed liquid cooling battery system and immersed liquid cooling battery temperature control system Download PDFInfo
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- CN219739076U CN219739076U CN202321135982.6U CN202321135982U CN219739076U CN 219739076 U CN219739076 U CN 219739076U CN 202321135982 U CN202321135982 U CN 202321135982U CN 219739076 U CN219739076 U CN 219739076U
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- 239000007788 liquid Substances 0.000 title claims description 68
- 238000001816 cooling Methods 0.000 title claims description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 64
- 239000000110 cooling liquid Substances 0.000 claims abstract description 51
- 238000002156 mixing Methods 0.000 claims abstract description 19
- 238000003756 stirring Methods 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000007654 immersion Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 7
- 239000012809 cooling fluid Substances 0.000 claims 3
- 239000002002 slurry Substances 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- 238000004146 energy storage Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses an immersed liquid-cooled battery system and an immersed liquid-cooled battery temperature control system, comprising a battery and a battery temperature control device, wherein the battery comprises a battery cabinet, cooling liquid, a battery pack and a mixing stirring paddle; the mixing stirring slurry is connected with the battery pack, the battery pack is positioned in the battery cabinet, and the battery cabinet is filled with the cooling liquid; the battery temperature control device comprises a water chiller, an expansion tank and a pump; any two of the water chiller, the expansion tank and the pump are respectively communicated with the battery cabinet, and meanwhile, the water chiller, the expansion tank and the pump are communicated, so that the temperature difference between battery inner cells is reduced, the safety of the battery is improved, and the service life of the battery is prolonged.
Description
Technical Field
The utility model relates to the technical field of battery safety, in particular to an immersed liquid-cooled battery system and an immersed liquid-cooled battery temperature control system.
Background
Along with the continuous pursuit of high-rate charge and discharge in the energy storage industry, liquid cooling energy storage is gradually an important direction of the current energy storage electric heating management technology. However, the existing liquid cooling technology mainly uses bottom liquid cooling plate heat dissipation, so that the problems of electric core temperature distribution gradient and large local temperature difference are generally existed, and great test is carried out on the service life and safety of the electric core. In addition, the liquid cooling plate route needs a plurality of liquid cooling pipeline joints, and once liquid leakage occurs, a short circuit can be caused to cause thermal runaway. Meanwhile, the existing liquid cooling battery often has the safety problems of battery core and component short circuit caused by service life reduction and leakage of the battery core due to overlarge temperature difference caused by overlarge temperature difference of the battery core and uneven temperature distribution among the battery cores.
Disclosure of Invention
The utility model discloses an immersed liquid-cooled battery system and an immersed liquid-cooled battery temperature control system, which are used for reducing the temperature difference between battery inner cells, improving the safety of the battery and further prolonging the service life of the battery.
In order to achieve the above object, the present utility model discloses an immersion type liquid cooling battery system, comprising: a battery and a battery temperature control device;
the battery comprises a battery cabinet, a liquid adding port, cooling liquid, a battery pack and a mixing stirring paddle; the battery pack is positioned in the battery cabinet, the battery cabinet is filled with the cooling liquid, and the liquid adding port is positioned above the battery cabinet;
the battery temperature control device comprises a water chiller, an expansion tank and a pump; any two of the water chiller, the expansion tank and the pump are respectively communicated with the battery cabinet, and meanwhile, the water chiller, the expansion tank and the pump are communicated.
The utility model discloses an immersed liquid cooling battery system, which comprises a battery and a battery management device, wherein the battery comprises a battery cabinet, and a cooling liquid and a battery pack which are positioned in the battery cabinet, the battery pack is positioned in the cooling liquid so as to cool the battery pack through the cooling liquid, meanwhile, a mixed stirring slurry is also arranged on the battery pack so as to accelerate the flow of the cooling liquid and improve the temperature control effect, and the battery temperature control device comprises a water chiller, an expansion tank and a pump, wherein any two of the water chiller, the expansion tank and the pump are respectively communicated with the battery cabinet, and meanwhile, the water chiller, the expansion tank and the pump are communicated so as to realize the outflow of the cooling liquid of the battery cabinet by using the pump, treat the cooling liquid in the water chiller, prevent the extrusion of a pipeline by using the expansion tank and improve the safety of the battery pack.
As a preferable example, the battery cabinet is internally filled with the cooling liquid and provided with a plurality of liquid adding ports and liquid outlets, and the battery cabinet is provided with a waterproof fastening structure; and two ends of the battery temperature control device are respectively communicated with the battery cabinet through the liquid adding opening and the liquid outlet.
According to the utility model, the cooling liquid is filled in the battery cabinet, so that the battery pack is fully immersed in the cooling liquid, the stability of the temperature of the current environment of the battery pack is improved, meanwhile, the battery cabinet is of a waterproof airtight structure and is pressure-resistant, the pressure caused by complete immersion of the cooling liquid can be borne, the safety of a battery system is improved, and the battery cabinet is provided with a plurality of liquid adding ports and liquid outlets to ensure the flow of the cooling liquid.
According to the utility model, two ends of the battery temperature control device are respectively communicated with the battery cabinet through the liquid adding opening and the liquid outlet, so as to control the flow of cooling liquid in the battery cabinet and the temperature of the cooling liquid, and the temperature control of the battery pack is realized through the flow of the cooling liquid.
As a preferable example, the pump and the expansion tank are respectively communicated with the battery cabinet, the water chiller is arranged between the pump and the expansion tank, and the water chiller is communicated with the expansion tank and the pump. The expansion tank is arranged on the loop of the water chiller, so that extrusion of the pipeline caused by expansion of liquid after passing through the water chiller can be effectively avoided.
As a preferable example, the cooling liquid is an insulating cooling liquid.
According to the utility model, the cooling liquid is used as insulating cooling liquid, so that electric leakage of the battery pack caused by liquid immersion is avoided, and the safety of the battery pack is improved. Specifically, the insulating coolant may be a fluorinated liquid.
As a preferred example, the battery pack includes a plurality of battery packs and the mixing paddles are mounted to each of the plurality of battery packs.
According to the utility model, the mixing stirring slurry is arranged in each battery pack in the battery pack so as to accelerate the mixing flow of the cooling liquid and improve the temperature control efficiency of the battery.
As a preferred example, the battery pack is a non-closed battery pack.
The battery pack is arranged to be a non-closed battery pack so as to facilitate heat exchange between the battery cells in the battery pack and the cooling liquid, and further realize temperature control of the battery pack.
As a preferred example, the battery pack includes a temperature sensor inside.
According to the utility model, the temperature sensor is arranged in the battery pack, so that the temperature of the battery pack is monitored in real time, and the temperature control efficiency of the battery pack is improved.
As a preferred example, the chiller has a temperature control function for heating and cooling.
According to the utility model, the temperature control function of heating and cooling is arranged in the water chiller, so that when the cooling liquid flowing into the water chiller is heated or cooled, the cooling liquid is heated or cooled, and the cooling liquid is controlled at a fixed temperature, so that the temperature of the battery pack is controlled by the cooling liquid with the fixed temperature, and the temperature control effect of the battery pack is improved.
On the other hand, the utility model also discloses an immersed liquid cooling battery temperature control system, which comprises an upper computer and the immersed liquid cooling battery system.
Drawings
Fig. 1: the embodiment of the utility model provides a schematic front view structure of an immersed liquid-cooled battery system;
fig. 2: the embodiment of the utility model provides a schematic front view structure of an immersed liquid-cooled battery system.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
The embodiment of the utility model provides an immersed liquid cooling battery system, and the schematic structural diagram of the battery system is shown in fig. 1, and mainly comprises a battery cabinet 101, cooling liquid 102, a battery pack 103, a mixing stirring paddle 104, a pump 105, a water chiller 106, an expansion tank 107 and a liquid filling port 108.
Referring to fig. 1, the mixing paddle 104 is connected to the battery pack 103, the battery pack 103 is located in the battery cabinet 101, and the battery cabinet 101 is filled with the cooling liquid 102; the pump 105 and the expansion tank 107 are respectively communicated with the battery cabinet 101, while the water chiller 106 is communicated with the expansion tank 107 and the pump 105. In other embodiments, the pump 105 and the water chiller 106 may be respectively connected to the battery cabinet 101, while the expansion tank 107 is connected to the pump 105 and the water chiller 106; or the water chiller 106 and the expansion tank 107 are respectively communicated with the battery cabinet 101, and the pump 105 is communicated with the water chiller 106 and the expansion tank 107, so that the circulation flow of the cooling liquid among the battery cabinet 101, the pump 105, the water chiller 106 and the expansion tank 107 can be realized. The communication between the pump 105, the water chiller 106, the expansion tank 107 and the battery cabinet 101 may be direct communication through a pipe, or may be indirect communication through other structures, which is not limited herein.
Referring to fig. 1, in the embodiment of the present utility model, the battery cabinet 101 is filled with the cooling liquid 102 and provided with a plurality of liquid inlets 108 and liquid outlets, and the battery cabinet 101 has a waterproof tight structure, and the cooling liquid 102 is an insulating cooling liquid.
Referring to fig. 1, in the embodiment of the present utility model, the expansion tank 107 is in communication with the battery cabinet 101 through the filling opening 108, and the pump 105 is in communication with the battery cabinet 101 through the liquid outlet.
Referring to fig. 1, the battery pack 103 includes a plurality of battery packs and each of the plurality of battery packs is mounted with the mixing paddle 104, and meanwhile, the battery packs are non-closed battery packs, and a temperature sensor is disposed inside the battery packs.
Referring to fig. 1, the water chiller 106 has a heating and cooling temperature control function, and includes an electric ball valve therein for controlling the outflow rate of the cooling liquid.
Meanwhile, in the embodiment, the temperature control system of the immersed liquid-cooled battery is also provided, and comprises the immersed liquid-cooled battery system and an upper computer.
Referring to fig. 1, an immersed liquid-cooled battery system is provided, where a battery pack 103 of the battery system is composed of 7 battery packs, and each battery pack contains 30 battery cells of 280 Ah. Each battery pack is provided with a mixing stirring paddle 104, the mixing stirring paddle is arranged at the front end of the battery pack, the battery cabinet 101 is filled with fluorinated liquid as cooling liquid 102, a centrifugal pump 105 is arranged to pump the fluorinated liquid into a water chiller 106 from the lower part under pressure, and the fluorinated liquid is pumped into the battery cabinet 101 from the upper part for circulation, so that the effect of cooling the battery cells is achieved. The circuit is provided with an expansion tank 107 to prevent liquid expansion from squeezing the pipeline. According to the temperature control system for the immersed liquid cooling battery, provided by the embodiment of the utility model, the temperature collector is arranged in the battery core, the temperature of the battery core is monitored by the temperature collector and returned to the upper computer, the upper computer controls the opening of the electric ball valve in the water chiller 106 according to the temperature, the flow rate of liquid outlet is regulated, in the embodiment, the temperature of water outlet of the water chiller 106 is 18 ℃, when the temperature of the battery core is higher than 35 ℃, the flow rate is regulated to 100L/min, when the temperature of the battery core is 25-35 ℃, the flow rate is regulated to 50L/min, and when the temperature of the battery core is 20-25 ℃, the flow rate is regulated to 0L/min. When heating, the water outlet temperature of the water chiller 106 is 30 ℃, and when the temperature of the battery cell is 10-20 ℃, the water outlet flow of the water chiller 106 is adjusted to be 50L/min. When the temperature of the battery core is lower than 10 ℃, the water outlet flow of the water chiller 106 is regulated to 100L/min. According to the system, under the temperature control method, the temperature of the electric core under the 1C working condition is kept at 25-28 ℃, the maximum temperature difference between the electric cores is 3 ℃, meanwhile, in the embodiment, the centrifugal pump 105 provides power for the water chiller 106, namely, the cooling liquid 102 flows, the mixing stirring paddles 104 are arranged on each battery pack to assist the flowing and mixing of the cooling liquid, the temperature equalizing effect is achieved, when the highest temperature of the electric core and the temperature difference are reduced, the water outlet temperature of the water chiller 106 is 18 ℃, when the temperature of the electric core is higher than 35 ℃, the flow is adjusted to 100L/min, when the temperature of the electric core is 25-35 ℃, the flow is adjusted to 50L/min, and when the temperature of the electric core is 20-25 ℃, the flow value is adjusted to 0L/min. When heating, the water outlet temperature of the water chiller 106 is 30 ℃, and when the temperature of the battery cell is 10-20 ℃, the water outlet flow of the water chiller 106 is adjusted to be 50L/min. When the temperature of the battery core is lower than 10 ℃, the water outlet flow of the water chiller 106 is regulated to 100L/min. Under the temperature control method, the temperature of the battery cells under the working condition of 1C is kept at 25-28 ℃, and the maximum temperature difference between the battery cells is 3 ℃.
Example two
Referring to fig. 2, another submerged liquid-cooled battery system is provided according to an embodiment of the present utility model, which mainly includes a battery cabinet 201, a cooling liquid 204, a battery pack 202, a mixing paddle 203, a centrifugal pump 205, a water chiller 206, an expansion tank 207, and a filling port 208.
Referring to fig. 2, the battery pack 202 includes 42 non-closed battery packs, the 42 battery packs are arranged in 6 rows, each row includes 7 battery packs, and each of the 42 non-closed battery packs is provided with a mixing paddle 203, and is disposed at the front end of the battery pack, the battery cabinet 201 is filled with a fluorinated liquid as a cooling liquid 204, and a plurality of liquid charging ports 208 are disposed above the battery cabinet 201, and referring to fig. 2, three centrifugal pumps 205 are provided and are simultaneously connected with the battery cabinet 201 and the water chiller 206, and the water chiller 206 is connected with the expansion tank 207 and the centrifugal pumps 205.
Referring to fig. 2, in the embodiment of the present utility model, the battery cabinet 201 is provided with a plurality of liquid filling openings 208 and a liquid outlet, and the battery cabinet 201 has a waterproof and tightly-closed structure, the expansion tank 207 is communicated with the battery cabinet 201 through the liquid filling openings 208, and the centrifugal pump 205 is communicated with the battery cabinet 201 through the liquid outlet. The water chiller 206 has heating and cooling temperature control functions, and comprises an electric ball valve inside for controlling the liquid outlet flow of the cooling liquid.
Meanwhile, the embodiment also provides an immersed liquid cooling battery temperature control system, which comprises the immersed liquid cooling battery system and the upper computer.
Referring to fig. 2, an immersed liquid-cooled battery system is provided, and each battery pack of the 42 battery packs 202 is filled with 60 cells of 105 Ah. Each battery pack is provided with a mixing paddle 203 positioned at the front end of the battery pack. The battery cabinet 201 is filled with a fluorinated liquid as a cooling liquid 204, and 3 (2 on 1 standby) centrifugal pumps 205 are provided to pump the liquid from the lower part into a water chiller 206 and then pump the liquid into the battery cabinet 201 from the upper part for circulation, thereby achieving the effect of cooling the battery cells. The circuit is provided with an expansion tank 207 which prevents liquid expansion from squeezing the pipeline. The temperature collector is arranged in the battery cell, the temperature of the battery cell is monitored by the temperature collector and returned to the upper computer, the upper computer controls the opening of the electric ball valve in the water chiller 206 according to the temperature, the liquid outlet flow is regulated, when the water chiller 206 is cooled, the water outlet temperature is 18 ℃, when the temperature of the battery cell is higher than 35 ℃, the flow is regulated to 300L/min, when the temperature of the battery cell is 25-35 ℃, the flow is regulated to 150L/min, and when the temperature of the battery cell is 20-25 ℃, the flow value is regulated to 0L/min. When heating, the water outlet temperature of the water chiller 206 is 30 ℃, and when the temperature of the battery cell is 10-20 ℃, the water outlet temperature of the water chiller 206 is adjusted to 150L/min. When the temperature of the battery core is lower than 10 ℃, the water outlet temperature of the water chiller 206 is adjusted to 300L/min. Under the temperature control method, the temperature of the battery cells under the working condition of 1C is kept at 25-30 ℃, and the maximum temperature difference between the battery cells is 5 ℃.
The embodiment of the utility model provides an immersed liquid cooling battery system and an immersed liquid cooling battery temperature control system, which comprise a battery cabinet, cooling liquid and a battery pack, wherein the cooling liquid and the battery pack are positioned in the battery cabinet, the battery pack is cooled by the cooling liquid, meanwhile, a mixed stirring slurry is further arranged on a battery pack, so that the flow of the cooling liquid is accelerated, the temperature control effect is improved, the battery temperature control device comprises a water chiller, an expansion tank and a pump, the water chiller is respectively communicated with the expansion tank and the pump, the pump and the expansion tank are also communicated with the battery cabinet, the expansion tank is communicated with the battery cabinet through a liquid adding port, so that the outflow of the cooling liquid of the battery cabinet is realized by the pump, the expansion tank is used for preventing the liquid expansion from extruding a pipe when the cooling liquid of the water chiller flows into the battery cabinet through the liquid adding port, the safety of the battery pack is improved, and meanwhile, the temperature of a battery core is obtained by the system comprising the immersed liquid cooling battery system, so that the temperature of the battery is controlled according to the temperature of the battery core, and the temperature of the battery is controlled, so that the temperature of the battery is controlled, and the temperature of the battery is reduced.
The foregoing embodiments have been provided for the purpose of illustrating the general principles of the present utility model, and are not to be construed as limiting the scope of the utility model. It should be noted that any modifications, equivalent substitutions, improvements, etc. made by those skilled in the art without departing from the spirit and principles of the present utility model are intended to be included in the scope of the present utility model.
Claims (10)
1. An immersion liquid cooled battery system, comprising: a battery and a battery temperature control device;
the battery comprises a battery cabinet, cooling liquid, a battery pack and a mixing stirring paddle; the mixing stirring paddle is connected with the battery pack, the battery pack is positioned in the battery cabinet, and the battery cabinet is filled with the cooling liquid;
the battery temperature control device comprises a water chiller, an expansion tank and a pump; one end of any two of the water chiller, the expansion tank and the pump is respectively communicated with the battery cabinet, and meanwhile, the water chiller, the expansion tank and the pump are communicated.
2. The immersed liquid-cooled battery system according to claim 1, wherein the battery cabinet is internally filled with the cooling liquid and provided with a plurality of liquid adding ports and liquid outlets, and the battery cabinet has a waterproof closing structure; and two ends of the battery temperature control device are respectively communicated with the battery cabinet through the liquid adding opening and the liquid outlet.
3. The submerged liquid-cooled battery system of claim 1, wherein the pump and the expansion tank are in communication with the battery cabinet, respectively, and the chiller is disposed between the pump and the expansion tank while the chiller is in communication with the expansion tank and the pump.
4. An immersion liquid cooled battery system according to claim 1, wherein the cooling fluid is an insulating cooling fluid.
5. The submerged, liquid-cooled battery system of claim 1, wherein the battery pack comprises a plurality of battery packs, and wherein each of the plurality of battery packs is mounted with the mixing paddles.
6. The submerged, liquid-cooled battery system of claim 5, wherein the battery pack is a non-enclosed battery pack.
7. An immersion liquid cooled battery system according to claim 5 wherein the battery pack includes a temperature sensor therein.
8. The immersed liquid-cooled battery system of claim 1, wherein the chiller has a temperature control function for heating and cooling.
9. The submerged, liquid-cooled battery system of claim 8, wherein the chiller includes an electrically operated ball valve for controlling the flow of the cooling fluid.
10. An immersion liquid cooling battery temperature control system, characterized by comprising an upper computer and an immersion liquid cooling battery system as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321135982.6U CN219739076U (en) | 2023-05-11 | 2023-05-11 | Immersed liquid cooling battery system and immersed liquid cooling battery temperature control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321135982.6U CN219739076U (en) | 2023-05-11 | 2023-05-11 | Immersed liquid cooling battery system and immersed liquid cooling battery temperature control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219739076U true CN219739076U (en) | 2023-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321135982.6U Active CN219739076U (en) | 2023-05-11 | 2023-05-11 | Immersed liquid cooling battery system and immersed liquid cooling battery temperature control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219739076U (en) |
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2023
- 2023-05-11 CN CN202321135982.6U patent/CN219739076U/en active Active
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