CN218996857U

CN218996857U - Liquid cooling energy storage system

Info

Publication number: CN218996857U
Application number: CN202223175089.4U
Authority: CN
Inventors: 刘明; 蔡宁; 张涛; 施婕; 夏雨; 郭良合
Original assignee: Shanghai Rongheyuan Energy Storage Co ltd
Current assignee: Shanghai Rongheyuan Energy Storage Co ltd
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-05-09
Anticipated expiration: 2032-11-29

Abstract

The application discloses liquid cooling energy storage system, including first pipeline and a plurality of battery module. The first pipeline comprises a first water inlet pipeline and a first water return pipeline. Each battery module is provided with a cooling pipeline, the cooling pipeline is provided with a cooling liquid water inlet pipe and a cooling liquid water return pipe, the cooling liquid water inlet pipe is connected with the first water inlet pipeline, the cooling liquid water return pipe is connected with the first water return pipeline, and the cooling liquid water inlet pipe and the cooling liquid water return pipe are provided with first valves. The liquid cooling energy storage system of this patent application all sets up first valve between every battery module and first pipeline, when certain battery module need dismantle the maintenance, closes corresponding first valve and can conveniently dismantle the maintenance to it, can not extravagant coolant liquid, and has saved a large amount of time of filling and putting the coolant liquid, also does not influence other battery module work that need not to dismantle simultaneously.

Description

Liquid cooling energy storage system

Technical Field

The utility model relates to the technical field of battery liquid cooling, in particular to a liquid cooling energy storage system.

Background

At present, the energy storage field is cooled by adopting a liquid cooling mode, the liquid cooling energy storage system mainly takes away heat generated by an electric core in the battery module by virtue of cooling liquid, and the cooling liquid flows into cooling plates of each battery module through pipelines, but after a period of use, certain battery modules are often encountered when the battery module needs to be detached and maintained independently, so that the cooling liquid is prevented from flowing out from a detaching part, and then the battery module can be detached only after the cooling liquid in the pipeline of the energy storage system is released, so that materials and time are wasted.

In view of this, the present utility model has been made.

Disclosure of Invention

The utility model provides a liquid cooling energy storage system.

The application provides the following technical scheme:

a liquid-cooled energy storage system, comprising:

the first pipeline comprises a first water inlet pipeline and a first water return pipeline;

each battery module is provided with a cooling pipeline, the cooling pipeline is provided with a cooling liquid inlet pipe and a cooling liquid return pipe, the cooling liquid inlet pipe is connected with the first water inlet pipeline, the cooling liquid return pipe is connected with the first water return pipeline, and the cooling liquid inlet pipe and the cooling liquid return pipe are provided with first valves.

Optionally, the first valve is a manual valve.

Optionally, a plurality of clusters of cells;

each cluster of batteries comprises a plurality of battery modules which are stacked in sequence;

the liquid cooling energy storage system is provided with corresponding first pipelines corresponding to the batteries of each cluster respectively;

the cooling pipelines of the battery modules of the same cluster of batteries are respectively connected with the same first pipeline.

Optionally, the first water inlet pipeline and the first water return pipeline are both provided with second valves.

Optionally, the second valve is a flow regulating valve.

Optionally, the second valve is an electrically operated valve.

Optionally, the water inlet main pipe and the water return main pipe are included;

the first water inlet pipeline of each first pipeline is connected with the water inlet main pipe, and the first water return pipeline of each first pipeline is connected with the water return main pipe.

Optionally, the second valve on the first water return pipeline is positioned between the water return main pipe and each cooling liquid water return pipe;

the second valve on the first water inlet pipeline is positioned between the water inlet main pipe and each cooling liquid inlet pipe.

Optionally, a BMS system is further included, the BMS system including a plurality of temperature sensors and a control module;

each temperature sensor is used for collecting the temperature of each cluster of batteries;

each temperature sensor is electrically connected with the control module, and the control module is in control connection with each second valve.

Through adopting above-mentioned technical scheme for this application has following beneficial effect:

the liquid cooling energy storage system of this patent application all sets up first valve between every battery module and first pipeline, so when certain battery module need dismantle the maintenance, close first valve can only discharge the coolant liquid in the battery module and just can dismantle the maintenance to it, not only can not waste the coolant liquid also saved a large amount of time of filling and putting the coolant liquid to do not influence other battery module work that need not dismantle yet.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and together with the description serve to explain the utility model, without limitation to the utility model. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort.

FIG. 1 is a schematic diagram of a local structure of a liquid-cooled energy storage system according to an embodiment of the present utility model;

fig. 2 is a partial enlarged view at a in fig. 1.

In the figure: the device comprises a first pipeline 1, a first water inlet pipeline 11, a first water return pipeline 12, a battery module 2, a cooling pipeline 21, a cooling liquid inlet pipe 211, a cooling liquid water return pipe 212, a first valve 3, a second valve 4, a water inlet main pipe 5 and a water return main pipe 6.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model, and the following embodiments are used to illustrate the present utility model, but are not intended to limit the scope of the present utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus 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 utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 to 2, an embodiment of the present application provides a liquid-cooled energy storage system, which includes a first pipeline 1 and a plurality of battery modules 2. The first pipeline 1 comprises a first water inlet pipeline 11 and a first water return pipeline 12. Each battery module 2 is provided with a cooling pipeline 21, the cooling pipeline 21 is provided with a cooling liquid inlet pipe 211 and a cooling liquid return pipe 212, the cooling liquid inlet pipe 211 is connected with the first water inlet pipeline 11, the cooling liquid return pipe 212 is connected with the first water return pipeline 12, and the cooling liquid inlet pipe 211 and the cooling liquid return pipe 212 are respectively provided with a first valve 3. The liquid cooling energy storage system of this patent application all sets up first valve 3 between every battery module 2 and first pipeline 1, so when certain battery module 2 need dismantle the maintenance, close first valve 3 and just can dismantle the maintenance to it by the coolant liquid in the discharge battery module 2 alone, not only can not waste the coolant liquid also saved a large amount of time of filling and putting the coolant liquid to do not influence other battery module 2 work that need not to dismantle yet.

In one possible embodiment, the first valve 3 is a manual valve, because each time the battery module 2 is maintained, the housing needs to be opened manually, then the single battery module 2 is disassembled, so that the manual valve is more convenient to operate, because if the electric valve is adopted, more electric control boards and electric control circuits are needed, and the electric control switch is possibly far away from the battery module 2 which needs to be disassembled, the use is more troublesome, the cost is higher, the damage is more easy, and the maintenance cost is higher.

In one possible embodiment, the liquid-cooled energy storage system comprises a plurality of clusters of cells, each cluster comprising a plurality of battery modules 2 stacked in sequence. The liquid cooling energy storage system is provided with corresponding first pipelines 1 corresponding to each cluster of batteries respectively, and cooling pipelines 21 of each battery module 2 of the same cluster of batteries are connected to the same first pipeline 1 respectively, namely, first water inlet pipelines 11 of the same cluster of batteries are all connected to the same cooling liquid water inlet pipe 211, and first water outlet pipelines of the same cluster of batteries are all connected to the same cooling liquid water outlet pipe. The same cluster of battery modules 2 uses the first pipeline 1 which is the main pipeline, so that the use of a plurality of pipelines can be saved, the cost can be saved, and a plurality of internal spaces can be saved.

In a possible embodiment, the first water inlet pipeline 11 and the first water return pipeline 12 are both provided with the second valve 4, and the second valve 4 can also switch on and off the first water inlet pipeline 11 and the first water return pipeline 12, so that a cluster of battery modules 2 can also switch on and off the cooling liquid simultaneously.

In a possible embodiment, the second valve 4 is a flow regulating valve, because different heat may occur in different cluster batteries, so that different degrees of cooling effect are required, and the flow of the cooling liquid can be respectively regulated by using the flow regulating valve, so that each cluster battery can be maintained at an optimal use temperature.

In a possible embodiment, the second valve 4 is an electrically operated valve, because the flow control is off-system or remotely controlled and the amount of the second valve 4 is not large, so that it is more convenient to use an electrically operated valve.

In a possible embodiment, the water inlet pipe comprises a water inlet main pipe 5 and a water return main pipe 6, the first water inlet pipeline 11 of each first pipeline 1 is connected with the water inlet main pipe 5, and the first water return pipeline 12 of each first pipeline 1 is connected with the water return main pipe 6, so that the total use length of the pipeline is further reduced, and the internal space is saved.

In one possible embodiment, the second valve 4 on the first water return line 12 is located between the water return main 6 and each of the coolant water return pipes 212, and the second valve 4 on the first water inlet line 11 is located between the water inlet main 5 and each of the coolant water inlet pipes 211.

The liquid cooling energy storage system comprises a liquid cooling container and a cooling unit. Each cluster of batteries is arranged in the liquid cooling container, and each cluster of batteries shares a cooling unit, so that different requirements are made on the flow of the cooling medium of each cluster of batteries. The liquid-cooled energy storage system also includes a BMS system including a plurality of temperature sensors and a control module. Each temperature sensor is used for collecting the temperature of each cluster battery, each temperature sensor is electrically connected with the control module, and the control module is in control connection with each second valve 4. The BMS system receives temperature information transmitted by the temperature sensor, compares the temperature transmitted by the temperature sensor with preset temperature, and performs flow reduction or amplification operation on the second valve 4 according to a comparison result, so that the purpose of separately controlling the temperature of each cluster of batteries is achieved. The opening angle of each second valve 4 is controlled by the BMS system to adjust the flow of the cooling medium, so that the temperature difference range of the system is within an ideal temperature range. The liquid cooling energy storage system can control the consistency of batteries and is beneficial to the efficient utilization of energy.

The above-disclosed preferred embodiments of the present application are provided only as an aid to the elucidation of the present application. The preferred embodiments are not exhaustive or to limit the application to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the application and the practical application, to thereby enable others skilled in the art to best understand and utilize the application. This application is to be limited only by the claims and the full scope and equivalents thereof.

Claims

1. A liquid-cooled energy storage system, comprising:

2. The liquid cooled energy storage system of claim 1, wherein the first valve is a manual valve.

3. The liquid cooled energy storage system of claim 1, comprising a plurality of clusters of cells;

4. The liquid cooled energy storage system of claim 3, wherein the first water inlet line and the first water return line are each provided with a second valve.

5. The liquid cooled energy storage system of claim 4, wherein the second valve is a flow regulating valve.

6. The liquid cooled energy storage system of claim 5, wherein the second valve is an electrically operated valve.

7. The liquid cooled energy storage system of claim 4, comprising a water inlet header and a water return header;

8. The liquid cooled energy storage system of claim 7, wherein the second valve on the first return line is located between the return main and each of the coolant return lines;

9. The liquid cooled energy storage system of claim 4, further comprising a BMS system comprising a plurality of temperature sensors and a control module;