Electric energy storage lithium ion battery pack based on liquid cooling

Abstract

The utility model discloses an electric power energy storage lithium ion battery pack based on liquid cooling, which comprises a shell module, an energy storage battery module and a liquid cooling module, the energy storage battery module and the liquid cooling module are both installed on the shell module, and the liquid cooling module is located on one side of the energy storage battery module. The shell module comprises a shell unit and a cover plate, and the cover plate is fixedly connected with the shell unit. According to the electric energy storage lithium ion battery pack based on liquid cooling disclosed by the utility model, the shell module, the energy storage battery module and the liquid cooling module are linked, so that on one hand, the energy storage battery module is protected through the shell module, and on the other hand, the energy storage battery module is efficiently cooled through the liquid cooling module; the LED lamp has the advantages of stable structure, good heat dissipation effect, high practicability and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery packs, and in particular relates to a liquid-cooled electric energy storage lithium-ion battery pack. Background Art

[0002] Since the energy storage lithium battery pack is large and generates a lot of heat during the charging and discharging process, the use environment of the energy storage station is changeable, and the layout space of the energy storage container is limited, which easily leads to poor heat dissipation conditions, resulting in the accumulation of heat in the battery pack and temperature rise, which in turn affects the performance and life of the energy storage lithium battery and even causes thermal runaway.

[0003] Therefore, it is necessary to design and optimize the heat dissipation structure of the energy storage battery pack to meet the heat dissipation requirements of the battery pack and improve the safety of the battery pack. Utility Model Content

[0004] The main purpose of the utility model is to provide a liquid-cooled electric energy storage lithium-ion battery pack, which is linked by a shell module, an energy storage battery module and a liquid cooling module. On the one hand, the energy storage battery module is protected by the shell module, and on the other hand, the energy storage battery module is efficiently cooled by the liquid cooling module. It has the advantages of stable structure, good heat dissipation effect and high practicality.

[0005] To achieve the above objectives, the utility model provides a liquid-cooled power energy storage lithium-ion battery pack, comprising a housing module, an energy storage battery module and a liquid cooling module, wherein the energy storage battery module and the liquid cooling module are both installed on the housing module and the liquid cooling module is located on one side of the energy storage battery module, wherein:

[0006] The housing module comprises a housing unit and a cover plate, the cover plate is fixedly connected to the housing unit, a first bottom support vertical frame, a second bottom support vertical frame, a third bottom support vertical frame, a fourth bottom support vertical frame, a first bottom support horizontal frame and a second bottom support horizontal frame are arranged on the inner side of the housing unit, the first bottom support vertical frame, the second bottom support vertical frame, the third bottom support vertical frame and the fourth bottom support vertical frame are all installed between the first bottom support horizontal frame and the second bottom support horizontal frame, and a first liquid cooling connector, a second liquid cooling connector, a first energy storage connector and a second energy storage connector are installed on the side of the housing unit;

[0007] The energy storage battery module includes a plurality of energy storage units, each of which includes a bottom pad, a plurality of battery hoops and a plurality of batteries, the batteries are mounted on the bottom pad and the batteries are tightly surrounded by the battery hoops;

[0008] The liquid cooling module includes a liquid cooling top plate, a liquid cooling bottom plate, a first liquid cooling connecting pipe and a second liquid cooling connecting pipe. The liquid cooling top plate is located on a side of the bottom pad away from the battery and the liquid cooling bottom plate is fixedly connected to a side of the liquid cooling top plate away from the bottom pad. One end of the first liquid cooling connecting pipe and one end of the second liquid cooling connecting pipe are respectively installed on the liquid cooling top plate, the other end of the first liquid cooling connecting pipe is connected to a first liquid cooling connector and the other end of the second liquid cooling connecting pipe is connected to a second liquid cooling connector. The liquid cooling bottom plate is provided with a plurality of liquid cooling circulation grooves.

[0009] As a further preferred technical solution of the above technical solution, the energy storage battery module also includes a first connecting copper bar and a second connecting copper bar, one end of the first connecting copper bar is connected to one of the energy storage units and the other end of the first connecting copper bar is connected to the first energy storage connector, one end of the second connecting copper bar is connected to another of the energy storage units and the other end of the second connecting copper bar is connected to the second energy storage connector.

[0010] As a further preferred technical solution of the above technical solution, the housing unit is also provided with an inspection panel.

[0011] As a further preferred technical solution of the above technical solution, the first liquid-cooling connector and the second liquid-cooling connector are connected to a liquid cooling device.

[0012] As a further preferred technical solution of the above technical solution, a sealing ring is provided between the housing unit and the cover plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a liquid-cooled electric energy storage lithium-ion battery pack of the utility model.

[0014] Figure 2 It is a structural schematic diagram of a liquid-cooled electric energy storage lithium-ion battery pack of the utility model.

[0015] Figure 3 It is a structural schematic diagram of a liquid-cooled electric energy storage lithium-ion battery pack of the utility model.

[0016] Figure 4 It is a structural schematic diagram of a liquid-cooled electric energy storage lithium-ion battery pack of the utility model.

[0017] Figure 5 It is a structural schematic diagram of a liquid cooling base plate of a liquid-cooled electric energy storage lithium-ion battery pack of the utility model.

[0018] The reference numerals include: 100, shell module; 110, shell module; 111, first bottom support vertical frame; 112, second bottom support vertical frame; 113, third bottom support vertical frame; 114, fourth bottom support vertical frame; 115, first bottom support horizontal frame; 116, second bottom support horizontal frame; 117, first liquid cooling connector; 118, second liquid cooling connector; 119, first energy storage connector; 120, second energy storage connector; 121, inspection plate; 130, cover plate; 200, energy storage battery module; 210, energy storage unit; 211, bottom pad; 212, battery hoop; 213, battery; 220, first connecting copper bus; 230, second connecting copper bus; 300, liquid cooling module; 310, liquid cooling top plate; 320, liquid cooling bottom plate; 321, liquid cooling circulation groove; 330, first liquid cooling connecting pipe; 340, second liquid cooling connecting pipe. DETAILED DESCRIPTION

[0019] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the utility model.

[0020] The utility model discloses a liquid-cooled lithium-ion battery pack for storing electric energy. The specific embodiments of the utility model are further described below in conjunction with preferred embodiments.

[0021] In the embodiments of the present invention, those skilled in the art note that the liquid cooling device and the like involved in the present invention may be regarded as prior art.

[0022] Preferred embodiments.

[0023] like Figure 1-5 As shown, the utility model discloses a liquid-cooled power energy storage lithium-ion battery pack, comprising a housing module 100, an energy storage battery module 200 and a liquid cooling module 300, wherein the energy storage battery module 200 and the liquid cooling module 300 are both installed on the housing module 100 and the liquid cooling module 300 is located on one side of the energy storage battery module 200, wherein:

[0024] The housing module 100 includes a housing unit 110 and a cover plate 130, wherein the cover plate 130 is fixedly connected to the housing unit 110, wherein a first bottom support vertical frame 111, a second bottom support vertical frame 112, a third bottom support vertical frame 113, a fourth bottom support vertical frame 114, a first bottom support horizontal frame 115, and a second bottom support horizontal frame 116 are disposed on the inner side of the housing unit 110, wherein the first bottom support vertical frame 111, the second bottom support vertical frame 112, the third bottom support vertical frame 113, and the fourth bottom support vertical frame 114 are all installed between the first bottom support horizontal frame 115 and the second bottom support horizontal frame 116, and a first liquid cooling connector 117, a second liquid cooling connector 118, a first energy storage connector 119, and a second energy storage connector 120 are installed on the side of the housing unit 110;

[0025] The energy storage battery module 200 includes a plurality of energy storage units 210, each of which includes a bottom pad 211, a plurality of battery hoops 212 and a plurality of batteries 213, wherein the batteries 213 are mounted on the bottom pad 211 and are tightly surrounded by the battery hoops 212 (to improve the stability between the batteries);

[0026] The liquid cooling module 300 includes a liquid cooling top plate 310, a liquid cooling bottom plate 320, a first liquid cooling connecting pipe 330 and a second liquid cooling connecting pipe 340. The liquid cooling top plate 310 is located on the side of the bottom pad 211 away from the battery 213 and the liquid cooling bottom plate 320 is fixedly connected to the side of the liquid cooling top plate 310 away from the bottom pad 211. One end of the first liquid cooling connecting pipe 330 and one end of the second liquid cooling connecting pipe 340 are respectively installed on the liquid cooling top plate 320, the other end of the first liquid cooling connecting pipe 330 is connected to the first liquid cooling connector 117 and the other end of the second liquid cooling connecting pipe 340 is connected to the second liquid cooling connector 118; the liquid cooling bottom plate 320 is provided with a plurality of liquid cooling circulation grooves 321.

[0027] Specifically, the energy storage battery module 200 also includes a first connecting copper bar 220 and a second connecting copper bar 230, one end of the first connecting copper bar 220 is connected to one of the energy storage units 210 and the other end of the first connecting copper bar 220 is connected to the first energy storage connector 119, one end of the second connecting copper bar 230 is connected to another of the energy storage units 210 and the other end of the second connecting copper bar 230 is connected to the second energy storage connector 120.

[0028] More specifically, the housing unit 110 is further provided with an inspection panel 121 .

[0029] Furthermore, the first liquid cooling connector 117 and the second liquid cooling connector 118 are connected to a liquid cooling device.

[0030] Furthermore, a sealing ring is provided between the housing unit 110 and the cover plate 130 (to improve the sealing performance of the structure).

[0031] For this utility model:

[0032] The energy storage battery module is placed closely on the liquid cooling top plate of the liquid cooling module, and liquid is circulated through the liquid cooling equipment so that the liquid enters the input end of the liquid cooling circulation groove through the first liquid cooling connecting pipe head and the first liquid cooling connecting pipe, and then absorbs the heat generated by each battery when it is working, and then flows out through the second liquid cooling connecting pipe head and the second liquid cooling connecting pipe, thereby achieving a good heat dissipation effect.

[0033] It is worth mentioning that the technical features such as liquid cooling equipment involved in this utility model patent application should be regarded as prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected by conventional methods in the field, and should not be regarded as the invention point of this utility model patent. This utility model patent will not be further elaborated.

[0034] For those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A liquid-cooled lithium-ion battery pack for power storage. It is characterized in that It comprises a housing module, an energy storage battery module and a liquid cooling module, wherein the energy storage battery module and the liquid cooling module are both installed on the housing module and the liquid cooling module is located on one side of the energy storage battery module, wherein: The housing module comprises a housing unit and a cover plate, the cover plate is fixedly connected to the housing unit, a first bottom support vertical frame, a second bottom support vertical frame, a third bottom support vertical frame, a fourth bottom support vertical frame, a first bottom support horizontal frame and a second bottom support horizontal frame are arranged on the inner side of the housing unit, the first bottom support vertical frame, the second bottom support vertical frame, the third bottom support vertical frame and the fourth bottom support vertical frame are all installed between the first bottom support horizontal frame and the second bottom support horizontal frame, and a first liquid cooling connector, a second liquid cooling connector, a first energy storage connector and a second energy storage connector are installed on the side of the housing unit; The energy storage battery module includes a plurality of energy storage units, each of which includes a bottom pad, a plurality of battery hoops and a plurality of batteries, the batteries are mounted on the bottom pad and the batteries are tightly surrounded by the battery hoops; The liquid cooling module includes a liquid cooling top plate, a liquid cooling bottom plate, a first liquid cooling connecting pipe and a second liquid cooling connecting pipe. The liquid cooling top plate is located on a side of the bottom pad away from the battery and the liquid cooling bottom plate is fixedly connected to a side of the liquid cooling top plate away from the bottom pad. One end of the first liquid cooling connecting pipe and one end of the second liquid cooling connecting pipe are respectively installed on the liquid cooling top plate, the other end of the first liquid cooling connecting pipe is connected to a first liquid cooling connector and the other end of the second liquid cooling connecting pipe is connected to a second liquid cooling connector. The liquid cooling bottom plate is provided with a plurality of liquid cooling circulation grooves.

2. A liquid-cooled lithium-ion battery pack for power storage according to claim 1, It is characterized in that The energy storage battery module also includes a first connecting copper bar and a second connecting copper bar, one end of the first connecting copper bar is connected to one of the energy storage units and the other end of the first connecting copper bar is connected to the first energy storage connector, one end of the second connecting copper bar is connected to another of the energy storage units and the other end of the second connecting copper bar is connected to the second energy storage connector.

3. A liquid-cooled lithium-ion battery pack for power storage according to claim 2, It is characterized in that The housing unit is also provided with an access panel.

4. A liquid-cooled lithium-ion battery pack for power storage according to claim 3, It is characterized in that The first liquid cooling connector and the second liquid cooling connector are connected to a liquid cooling device.

5. A liquid-cooled lithium-ion battery pack for power storage according to claim 4, It is characterized in that A sealing ring is provided between the housing unit and the cover plate.

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