CN218731263U - Temperature control system for parallel connection of battery energy storage units - Google Patents
Temperature control system for parallel connection of battery energy storage units Download PDFInfo
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- CN218731263U CN218731263U CN202222871164.4U CN202222871164U CN218731263U CN 218731263 U CN218731263 U CN 218731263U CN 202222871164 U CN202222871164 U CN 202222871164U CN 218731263 U CN218731263 U CN 218731263U
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a parallel temperature control system of a battery energy storage unit, belonging to the technical field of battery temperature management, comprising a liquid inlet header pipe communicated with a liquid inlet pipe and a return header pipe communicated with a liquid outlet pipe; the battery pack comprises a plurality of battery packs and a cooling pipeline connected with the battery packs, and the cooling pipeline is detachably connected with the battery packs through quick connectors; the input end of the cooling pipeline is connected with the liquid inlet main pipe in parallel, and the output end of the cooling pipeline is connected with the return main pipe in parallel. The utility model discloses a quick connector can improve the installation of battery package cooling line and dismantle efficiency, is convenient for carry out quick replacement to the battery package. The cooling pipelines between a plurality of battery clusters are connected in parallel and are independent of each other, the cooling liquid can not flow from one battery cluster to another battery cluster, the temperature difference generated by the flowing of the cooling liquid between different battery clusters is avoided, the whole temperature difference control of the whole battery energy storage system is facilitated, and the cooling efficiency is improved.
Description
Technical Field
The utility model relates to a battery temperature control technical field, specifically speaking relates to a parallelly connected temperature control system of battery energy storage unit.
Background
At present, new energy power batteries are developed, particularly in the field of lithium battery energy storage, energy storage products can not only cut peaks and fill valleys of a traditional power grid and reduce the waste of power resources of the national power grid, but also generate electricity by utilizing clean energy such as light energy or wind energy and the like and reduce carbon emission; therefore, the energy storage power station is popular in China and related fields in recent years.
Along with large-scale centralized energy storage power station is extensively used, distributed microgrid energy storage product also receives the attention of country or enterprise day by day because of its convenient transportation and can use in a flexible way, and the open air is the main operational environment of distributed microgrid energy storage product, especially south-east Asia country, and the island distributes abundantly, is particularly suitable for distributed microgrid energy storage product and as the power of using, along with distributed microgrid product promotes in south-east Asia tropical region, also brings some new challenges for energy storage product, wherein energy storage battery unit temperature management problem awaits a urgent need to be solved.
There is also system of energy storage battery unit temperature management now, chinese patent with publication No. CN216085036U for example has announced a battery energy storage unit's temperature management system, the battery package liquid cooling system of this patent couples together through the bellows, though can solve the problem of the highest low temperature control of energy storage battery, however, because the coolant liquid is when flowing and cooling down to the battery package, the temperature of self also can rise along with it, and the battery package liquid cooling system of establishing ties is in the liquid and flows to the terminal cooling effect worse, is unfavorable for the whole temperature difference control of energy storage battery system. In addition, the battery is used as an energy storage device, after energy release is completed, a new battery needs to be replaced, and a battery pack liquid cooling system of a management system of the conventional battery energy storage unit is connected in series through a corrugated pipe, so that quick replacement of a battery pack cannot be completed.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved by the utility model
The battery package liquid cooling system to the management system of battery energy storage unit among the prior art passes through the bellows series connection, can't accomplish the quick replacement's of battery problem, the utility model provides a parallelly connected temperature control system of battery energy storage unit can make the battery package in the whole battery energy storage system carry out quick replacement.
2. Technical scheme
In order to achieve the above object, the present invention provides a parallel temperature control system for battery energy storage units, which comprises a liquid inlet header pipe communicated with a liquid inlet pipe, and a return header pipe communicated with a liquid outlet pipe; the battery pack comprises a plurality of battery packs and a cooling pipeline connected with the battery packs, and the cooling pipeline is detachably connected with the battery packs through quick connectors; the input end of the cooling pipeline is connected with the liquid inlet main pipe in parallel, and the output end of the cooling pipeline is connected with the return main pipe in parallel.
Furthermore, quick connector includes the casing, has set gradually jump ring, locking retaining ring and sealing washer along the pipeline insertion direction in the casing, the block end of jump ring is buckled and is circular-arc.
Further, a liquid cooling plate is arranged inside the battery pack; the cooling pipeline comprises a liquid inlet main pipe, a liquid outlet main pipe and a branch pipe, wherein the input end of the liquid inlet main pipe is communicated with the liquid inlet main pipe, and the output end of the liquid outlet main pipe is communicated with the reflux main pipe; the branch pipe is communicated with the liquid inlet main pipe, the liquid cooling plate and the liquid outlet main pipe.
Furthermore, the liquid cooling plate comprises a liquid inlet nozzle and a liquid outlet nozzle, two shunt branch pipes are arranged, one end of one shunt branch pipe is connected with the liquid inlet nozzle through the quick connector, and the other end of the shunt branch pipe is connected with the main liquid inlet pipe; one end of the other shunt branch pipe is connected with the liquid outlet nozzle through the quick-connection-peg, and the other end of the other shunt branch pipe is connected with the main liquid outlet pipe.
Further, a plurality of the battery packs are arranged at intervals.
Further, the branch pipes comprise a bellows structure.
Furthermore, be provided with three way connection on the feed liquor house steward, the feed liquor is responsible for and is connected with the feed liquor house steward through three way connection, and three way connection's quantity is unanimous with the quantity that the feed liquor was responsible for.
Furthermore, a drain valve is arranged on the three-way joint.
Furthermore, the liquid cooling machine is further included, the liquid inlet pipe is connected with a water outlet of the liquid cooling machine, and the liquid outlet pipe is connected with a water inlet of the liquid cooling machine.
Furthermore, the outer surfaces of the liquid inlet pipe, the liquid outlet pipe, the liquid inlet main pipe, the backflow main pipe and the cooling pipeline are all provided with heat insulation layers.
3. Advantageous effects
Adopt the technical scheme provided by the utility model, compare with existing well-known technique, have following beneficial effect:
(1) The utility model discloses a parallelly connected temperature control system of battery energy storage unit, feed liquor house steward and backward flow house steward make the coolant liquid circulate in the cooling pipeline of battery cluster. The cooling pipeline that includes a plurality of battery packages and connect the battery package in the battery cluster can be dismantled through quick connector between cooling pipeline and the battery package and be connected, and quick connector can improve battery package cooling pipeline's installation and dismantlement efficiency, is convenient for carry out quick replacement to the battery package. The parallelly connected feed liquor house steward that communicates of input of cooling line, the parallelly connected intercommunication return manifold of output for cooling line mutually independent between a plurality of battery clusters, the coolant liquid can not flow to another battery cluster from a battery cluster, has avoided producing the difference in temperature because the flow of coolant liquid between the different battery clusters, is favorable to whole battery energy storage system temperature difference control, has improved cooling efficiency. Meanwhile, the design increases the service life consistency of the system battery, increases the service life of the system operation, and reduces the risk of thermal runaway of the battery caused by temperature difference.
(2) The utility model discloses a parallelly connected temperature control system of battery energy storage unit has set gradually jump ring, locking retaining ring and sealing washer along the pipeline insertion direction in the casing of quick connector, and the jump ring can block the connection position of battery package, increases the fastness of connection. The locking retaining ring is matched with the shell to fix the position of the sealing ring, the sealing ring can increase the sealing property of the plug connector for connecting the battery pack, and the leakage of cooling liquid is prevented. The clamping end of the clamp spring is bent to be in an arc shape, so that the quick connector can be conveniently pulled out of the battery pack while the connecting part of the battery pack is clamped, and quick disassembly is facilitated.
(3) The utility model discloses a parallelly connected temperature control system of battery energy storage unit, the inside liquid cooling board that is provided with of battery package, through the feed liquor person in charge in the cooling pipeline and feed liquor house steward intercommunication, with inside the coolant liquid leads to into liquid cooling board through the reposition of redundant personnel spinal branch pipe to cool off single battery package. The liquid cooling plate flows out through the shunt branch pipe, the liquid outlet main pipe and the reflux main pipe. The branch pipes are connected with the liquid inlet nozzle and the liquid outlet nozzle of the liquid cooling plate, so that the circulation of cooling liquid is facilitated. One end of the shunt branch pipe is provided with a quick connector, so that the connection efficiency of the shunt branch pipe and the liquid cooling plate can be improved. The branch pipe comprises a corrugated pipe structure, the corrugated shape can enhance the load resistance of the pipeline to the surrounding environment, and the flexibility of the branch pipe is not increased, so that the branch pipe can be laid on an uneven object continuously, and the branch pipe is connected to the liquid cooling plate conveniently.
(4) The utility model discloses a parallelly connected temperature control system of battery energy storage unit, the interval sets up between a plurality of battery packages, can prevent the battery package contact, when improving liquid cooling efficiency, the interval is favorable to the circulation of air, further improves cooling efficiency. The surface of feed liquor pipe, drain pipe, feed liquor house steward, return flow house steward and cooling line all is provided with the heat preservation, can improve the thermal insulation performance of pipeline, prevents that the temperature of the coolant liquid after the heating from escaping outward, and the heat that increases external environment leads to the battery to receive the heat influence once more, plays isolated thermal effect.
(5) The utility model discloses a parallelly connected temperature control system of battery energy storage unit, the feed liquor house steward passes through three way connection and is responsible for with the feed liquor and be connected, and three way connection's quantity and feed liquor are responsible for unanimously, and the quantity that the feed liquor was responsible for is unanimous with the quantity of battery cluster for the cooling pipeline of multiunit battery cluster can connect in parallel on the feed liquor house steward. The liquid cooling machine can cool down the cooling liquid with the temperature increased, and the cooling liquid is conveyed to the battery cluster through the liquid inlet pipe again to cool the battery cluster, so that the recycling of the cooling liquid is facilitated.
Drawings
In the drawings, the size and the proportion do not represent the size and the proportion of an actual product. The figures are merely illustrative and certain unnecessary elements or features have been omitted for clarity.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a cooling pipe according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a liquid inlet pipe according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a drain pipe according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of the quick connector according to an embodiment of the present invention.
The reference numerals in the schematic drawings illustrate:
1. a liquid inlet pipe; 2. a liquid outlet pipe; 3. a battery cluster; 301. a liquid inlet main pipe; 302. a liquid outlet main pipe; 303. a battery pack; 304. a branch pipe; 4. a liquid inlet header pipe; 5. a return header pipe; 6. a quick connector; 601. a housing; 602. a clamp spring; 603. a locking retainer ring; 604. a seal ring; 7. a three-way joint.
Detailed Description
For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples. What has been described herein is merely a preferred embodiment in accordance with the present invention, and those skilled in the art will appreciate that other ways of implementing the present invention on the basis of the preferred embodiment will also fall within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "level", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Examples
Referring to fig. 1-5, the present embodiment provides a parallel temperature control system for battery energy storage units, including a liquid inlet manifold 4 communicated with a liquid inlet pipe 1, a return manifold 5 communicated with a liquid outlet pipe 2, and a plurality of battery clusters 3, where each battery cluster 3 includes a plurality of battery packs 303 and cooling pipelines connected to the battery packs 303, and the liquid inlet manifold 4 and the return manifold 5 enable a cooling liquid to circulate in the cooling pipelines of the battery clusters 3. Can dismantle through quick connector 6 between cooling line and the battery package 303 and be connected, quick connector 6 can improve the installation of the cooling line of battery package 303 and dismantle efficiency, is convenient for carry out quick replacement to battery package 303. The parallelly connected feed liquor house steward 4 of intercommunication of input of cooling line, the parallelly connected intercommunication return manifold 5 of output for the cooling line mutual independence between a plurality of battery clusters 3, the coolant liquid can not follow another battery cluster 3 of 3 flow directions of a battery cluster, has avoided producing the difference in temperature because the flow of coolant liquid between the different battery clusters 3, is favorable to the whole temperature difference control of whole battery energy storage system, has improved cooling efficiency. Meanwhile, the design increases the service life consistency of the system battery, increases the service life of the system operation, and reduces the risk of thermal runaway of the battery caused by temperature difference.
In this embodiment, referring to fig. 5, the quick connector 6 includes a housing 601, a clamp spring 602, a locking retainer ring 603, and a sealing ring 604 are sequentially disposed in the housing 601 along the insertion direction of the pipeline, and the clamp spring 602 can clamp the connection portion of the battery pack 303, so as to increase the firmness of the connection. The locking retainer ring 603 is matched with the shell 601 to fix the position of the sealing ring 604, and the sealing ring 604 can increase the sealing performance of the quick-connection plug 6 connected with the battery pack 303 and prevent the leakage of cooling liquid. The clamping end of the clamp spring 602 is bent to be arc-shaped, so that the quick connector 6 can be conveniently pulled out of the battery pack 303 while the connecting part of the battery pack 303 is clamped, and quick disassembly is facilitated.
It should be noted that, referring to fig. 1, in this embodiment, a plurality of battery packs 303 are placed on the battery rack, and the battery packs 303 are stacked up and down and have a gap therebetween, so that the battery packs 303 can be prevented from contacting each other, and the gap facilitates air circulation while improving liquid cooling efficiency, thereby further improving cooling efficiency. The battery pack 303 is internally provided with a liquid cooling plate, the cooling pipeline comprises a liquid inlet main pipe 301, a liquid outlet main pipe 302 and a branch pipe 304, the input end of the liquid inlet main pipe 301 is communicated with the liquid inlet header pipe 4, and the output end of the liquid outlet main pipe 302 is communicated with the reflux header pipe 5. The branch pipe 304 is communicated with the main liquid inlet pipe 301, the liquid cooling plate and the main liquid outlet pipe 302. The liquid cooling plate is communicated with the liquid inlet header pipe 4 through the liquid inlet main pipe 301 in the cooling pipeline, and the cooling liquid is introduced into the liquid cooling plate through the branch flow pipe 304, so that a single battery pack 303 is cooled, and the cooling efficiency is improved. In this embodiment, the direction of the arrow in fig. 1 indicates the direction in which the coolant flows.
In this embodiment, referring to fig. 1, the liquid cooling plate includes a liquid inlet nozzle and a liquid outlet nozzle, two branch pipes 304 are provided, one end of one branch pipe 304 is provided with a quick connector 6, the other end is connected to the liquid inlet nozzle through the quick connector 6, and the other end is connected to the main liquid inlet pipe 301; one end of the other shunt branch pipe 304 is provided with a quick connector 6 which is connected with the liquid outlet nozzle through the quick connector 6, and the other end is connected with the liquid outlet main pipe 302. The liquid inlet nozzle and the liquid outlet nozzle are both of a pipeline structure, an annular ring protruding outwards is arranged on the outer side surface of the pipeline, and the snap spring 602 inside the quick-connection plug 6 is clamped with the annular ring of the liquid inlet nozzle or the liquid outlet nozzle, so that the quick-connection plug 6 is fixed. When the quick connector 6 is pulled out, the clamping end of the clamp spring 602 is bent in an arc shape, and the clamp spring 602 has elasticity, so that the clamping end of the clamp spring 602 can be compressed by the annular ring of the liquid inlet nozzle or the liquid outlet nozzle, and the quick connector 6 can be pulled out easily. The branch pipes 304 lead the low-temperature cooling liquid from the liquid inlet main pipe 301 to the liquid cooling plate, and drain the high-temperature cooling liquid after cooling the battery pack 303 into the liquid outlet main pipe 302, and finally converge into the return header pipe 5. It should be noted that, referring to fig. 2, one end of the branch pipe 304 is provided with a quick connector 6, and is connected to the liquid inlet nozzle or the liquid outlet nozzle through the quick connector 6. The quick connector 6 can facilitate the connection of the shunt branch pipe 304 and the liquid cooling plate in the battery pack 303, and the connection efficiency is improved. The middle section of the branch flow distribution pipe 304 is of a corrugated pipe structure, the corrugated shape can enhance the load resistance of the pipeline to the surrounding environment, the bending flexibility of the branch flow distribution pipe is not increased, the branch flow distribution pipe can be conveniently and continuously laid on an uneven object, and the branch flow distribution pipe 304 is conveniently connected to a liquid cooling plate.
In this embodiment, referring to fig. 1 and 2, last three way connection 7 that is provided with of feed liquor header pipe 4, feed liquor header pipe 301 passes through three way connection 7 and is connected with feed liquor header pipe 4, and three way connection 7's quantity is unanimous with feed liquor header pipe 301's quantity, can make multiunit battery cluster 3's cooling pipeline connect in parallel to feed liquor header pipe 4 on to can provide the coolant liquid for multiunit battery cluster 3. The three-way joint 7 is also provided with a drain valve which can directly discharge the cooling liquid from the three-way joint 7, thereby facilitating the maintenance of the liquid inlet header pipe 4.
It should be noted that the temperature control system is further provided with a liquid cooling machine, the liquid inlet pipe 1 is connected with a water outlet of the liquid cooling machine, the liquid outlet pipe 2 is connected with a water inlet of the liquid cooling machine and used for cooling the cooling liquid with the high temperature discharged from the liquid outlet pipe 2, and then the cooling liquid with the reduced temperature after cooling is input into the temperature control system from the liquid inlet pipe 1, so that the cooling liquid can be recycled in the temperature control system, the waste of the cooling liquid is avoided, and the resources are saved. In addition, the surface of feed liquor pipe 1, drain pipe 2, feed liquor house steward 4, return manifold 5 and cooling line all is provided with the heat preservation, can improve the thermal insulation performance of pipeline, prevents that the temperature of the coolant liquid after the heating from escaping outward, and the heat that increases external environment leads to the battery to receive the heat influence once more, plays isolated thermal effect. The heat preservation layer in this embodiment is made of heat preservation cotton, and other materials with heat preservation effects can also be adopted.
The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art should understand that without departing from the spirit of the present invention, the person skilled in the art should not inventively design the similar structural modes and embodiments to the technical solution, and all shall fall within the protection scope of the present invention.
Claims (10)
1. A temperature control system with battery energy storage units connected in parallel comprises a liquid inlet main pipe (4) communicated with a liquid inlet pipe (1) and a return main pipe (5) communicated with a liquid outlet pipe (2); the device is characterized by further comprising a plurality of battery clusters (3), wherein each battery cluster (3) comprises a plurality of battery packs (303) and a cooling pipeline connected with the battery packs (303), and the cooling pipelines are detachably connected with the battery packs (303) through quick connectors (6); the input end of the cooling pipeline is connected with the liquid inlet header pipe (4) in parallel, and the output end of the cooling pipeline is connected with the return header pipe (5) in parallel.
2. The parallel temperature control system of the battery energy storage units as claimed in claim 1, wherein the quick connector (6) comprises a housing (601), a clamp spring (602), a locking retainer ring (603) and a sealing ring (604) are sequentially arranged in the housing (601) along the insertion direction of the pipeline, and the clamping end of the clamp spring (602) is bent in an arc shape.
3. The parallel temperature control system for the battery energy storage units according to claim 1, wherein a liquid cooling plate is arranged inside the battery pack (303); the cooling pipeline comprises a liquid inlet main pipe (301), a liquid outlet main pipe (302) and a branch pipe (304), wherein the input end of the liquid inlet main pipe (301) is communicated with a liquid inlet main pipe (4), and the output end of the liquid outlet main pipe (302) is communicated with a return main pipe (5); the branch pipe (304) is communicated with the liquid inlet main pipe (301), the liquid cooling plate and the liquid outlet main pipe (302).
4. The parallel temperature control system for the battery energy storage units according to claim 3, wherein the liquid cooling plate comprises a liquid inlet nozzle and a liquid outlet nozzle, two branch pipes (304) are provided, one end of one branch pipe (304) is connected with the liquid inlet nozzle through the quick connector (6), and the other end is connected with the main liquid inlet pipe (301); one end of the other shunt branch pipe (304) is connected with the liquid outlet nozzle through the quick-connection-peg (6), and the other end is connected with the main liquid outlet pipe (302).
5. The parallel temperature control system for the battery energy storage units according to claim 1, wherein a plurality of battery packs (303) are arranged at intervals.
6. A parallel battery energy storage unit temperature control system according to claim 3, wherein the shunt leg (304) comprises a bellows structure.
7. The parallel temperature control system for the battery energy storage units according to claim 3, wherein a three-way joint (7) is arranged on the liquid inlet main pipe (4), the liquid inlet main pipe (301) is connected with the liquid inlet main pipe (4) through the three-way joint (7), and the number of the three-way joints (7) is the same as that of the liquid inlet main pipes (301).
8. The parallel temperature control system of the battery energy storage units according to claim 7, characterized in that a drain valve is arranged on the three-way joint (7).
9. The parallel temperature control system for the battery energy storage units according to claim 1, further comprising a liquid cooler, wherein the liquid inlet pipe (1) is connected with a water outlet of the liquid cooler, and the liquid outlet pipe (2) is connected with a water inlet of the liquid cooler.
10. The parallel temperature control system of the battery energy storage units according to claim 1, wherein the outer surfaces of the liquid inlet pipe (1), the liquid outlet pipe (2), the liquid inlet header pipe (4), the return header pipe (5) and the cooling pipeline are all provided with insulating layers.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222871164.4U CN218731263U (en) | 2022-10-26 | 2022-10-26 | Temperature control system for parallel connection of battery energy storage units |
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| CN202222871164.4U CN218731263U (en) | 2022-10-26 | 2022-10-26 | Temperature control system for parallel connection of battery energy storage units |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116937005A (en) * | 2023-09-13 | 2023-10-24 | 江苏冠华新能源科技有限公司 | Liquid cooling energy storage battery cluster |
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2022
- 2022-10-26 CN CN202222871164.4U patent/CN218731263U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116937005A (en) * | 2023-09-13 | 2023-10-24 | 江苏冠华新能源科技有限公司 | Liquid cooling energy storage battery cluster |
| CN116937005B (en) * | 2023-09-13 | 2023-12-01 | 江苏冠华新能源科技有限公司 | Liquid cooling energy storage battery cluster |
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