CN219203273U

CN219203273U - Air-cooled battery module of energy storage system

Info

Publication number: CN219203273U
Application number: CN202223397903.7U
Authority: CN
Inventors: 王雯斐; 成月; 成杰; 谢林璋
Original assignee: Jiangsu Dechun Power Electric Co ltd
Current assignee: Jiangsu Dechun Power Electric Co ltd
Priority date: 2022-12-19
Filing date: 2022-12-19
Publication date: 2023-06-16
Anticipated expiration: 2032-12-19

Abstract

The utility model relates to the technical field of air-cooled battery packs, in particular to an air-cooled battery module of an energy storage system, which comprises a sheet metal shell, wherein a plurality of PCB collecting plates are distributed at equal intervals on the bottom of the sheet metal shell, two groups of small modules 1p8s are arranged between the PCB collecting plates, each small module 1p8s comprises a plurality of battery cores, the battery cores are arranged between every two PCB collecting plates positioned on the same side, and every two battery cores are connected through a connecting aluminum row. Through the mode of fan to battery package outside exhaust or to inside bloies, utilize low temperature air as the medium for the cold wind that the fan blown out is through the direction of cooling wind channel and from the air outlet discharge, even send the wind-force to each battery core, can cool down the cooling to every battery core simultaneously, improved its cooling efficiency.

Description

Air-cooled battery module of energy storage system

Technical Field

The utility model relates to the technical field of air-cooled battery packs, in particular to an air-cooled battery module of an energy storage system.

Background

The battery energy storage system is an important component of the new energy system, and in general, the battery energy storage system is formed by combining a large number of single batteries in series-parallel connection to form a battery module, then the battery module is placed in a shell to form a battery pack, and a plurality of battery packs are used for constructing a complete battery energy storage system.

In the process of using the battery pack, the batteries can continuously generate heat, temperature difference can be generated between the batteries, at this time, air cooling and heat dissipation are needed to be carried out on the battery pack, in an existing air cooling and heat dissipation system, one-to-one cooling is adopted for the battery pack, one-to-one cooling method is adopted to cause temperature imbalance between each battery and each battery, cooling efficiency is reduced, and accordingly service life of the batteries is influenced, and use of the whole battery pack and an energy storage system is further influenced.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides an air-cooled battery module of an energy storage system.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides an energy storage system forced air cooling battery module, includes the panel beating casing, equidistant distribution of bottom of panel beating casing has a plurality of PCB to gather the board, be equipped with two sets of little module 1p8s between the PCB gathers the board, little module 1p8s includes a plurality of battery core, the battery core sets up between every two PCB that are located same one side gathers the board, every two connect through connecting the aluminium row between the battery core, the both ends of little module 1p8s are connected with positive and negative pole copper bar, positive and negative pole aluminium bar respectively, the outer wall connection of panel beating casing has bridging copper bar, and the bottom of little module 1p8s is in through positive and negative pole aluminium bar connection on the bridging copper bar, the top of little module 1p8s is in on the outer wall of panel beating casing through positive and negative pole copper bar.

Preferably, the top of panel beating casing is connected with control panel, control panel's both sides are fixedly connected with positive negative pole plug socket, BMU battery module management system respectively, control panel's center department has seted up the through-hole, the inside intercommunication of through-hole and panel beating casing is equipped with the fan in the through-hole.

Preferably, a cooling air duct is arranged between the two groups of small modules 1p8s, and an air outlet is formed in one side, close to the battery core, of the cooling air duct.

Preferably, a wind shield is arranged above the wind opening of the fan, and the wind shield is fixedly arranged at the joint of the sheet metal shell and the control panel.

Preferably, radiating fins are arranged on one side of the cooling air duct close to the air outlet at equal intervals.

Preferably, the battery core is made of lithium iron phosphate electrode material.

Preferably, the output voltage of the fan is 24V.

The beneficial effects of the utility model are as follows: through the mode of fan to battery package outside exhaust or to inside bloies, utilize low temperature air as the medium for the cold wind that the fan blown out is through the direction of cooling wind channel and follow the air outlet and discharge, even send the wind-force to each battery core, can cool down the cooling to every battery core simultaneously, improved its cooling efficiency, the cost is reduced.

By utilizing heat convection, the heat circulation flow on the surface of the battery core is accelerated, so that each battery core can be effectively and forcedly cooled, the temperature of each battery core is balanced, the service life of the battery is prolonged, and the use of the whole battery pack and the energy storage system is not affected.

Drawings

Fig. 1 is a schematic diagram of the overall structure of an air-cooled battery module of an energy storage system according to the present utility model;

fig. 2 is a schematic diagram of a front view structure of an air-cooled battery module of an energy storage system according to the present utility model;

fig. 3 is a schematic diagram of a control panel structure of an air-cooled battery module of an energy storage system according to the present utility model;

fig. 4 is a schematic diagram of a sheet metal housing of an air-cooled battery module of an energy storage system according to the present utility model.

In the figure:

1. a sheet metal shell; 2. small modules 1p8s; 3. a PCB acquisition board; 4. a battery core; 5. connecting an aluminum row; 6. an air outlet; 7. a control panel; 8. positive and negative plug and socket; 9. a blower; 10. BMU battery module management system; 11. a cooling air duct; 12. bridging copper bars; 13. positive and negative copper bars; 14. positive and negative aluminum bars; 15. and a wind deflector.

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.

What is not described in detail in this specification is prior art known to those skilled in the art.

Standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of all parts adopt conventional means such as mature bolts, rivets and welding in the prior art, the machinery, the parts and the equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that the details are not described.

Examples: referring to fig. 1-4, an air-cooled battery module of an energy storage system comprises a sheet metal shell 1, a plurality of Printed Circuit Board (PCB) collecting boards 3 are distributed at equal intervals at the bottom of the sheet metal shell 1, two groups of small modules 1p8s2 are arranged between the PCB collecting boards 3, each small module 1p8s2 comprises a plurality of battery cores 4, each battery core 4 is arranged between every two PCB collecting boards 3 positioned on the same side, every two battery cores 4 are connected through a connecting aluminum bar 5, two ends of each small module 1p8s2 are respectively connected with a positive and negative electrode copper bar 13 and a positive and negative electrode aluminum bar 14, the outer wall of the sheet metal shell 1 is connected with a bridging copper bar 12, the bottom of each small module 1p8s2 is connected to the bridging copper bar 12 through a positive and negative electrode aluminum bar 14, and the top of each small module 1p8s2 is connected to the outer wall of the sheet metal shell 1 through a positive and negative electrode copper bar 13.

The top of panel beating casing 1 is connected with control panel 7, and control panel 7's both sides are fixedly connected with positive negative pole plug socket 8, BMU battery module management system 10 respectively, and the through-hole has been seted up to control panel 7's center department, and the through-hole communicates with panel beating casing 1's inside, is equipped with fan 9 in the through-hole.

A cooling air duct 11 is arranged between the two groups of small modules 1p8s2, an air outlet 6 is formed in one side, close to the battery core 4, of the cooling air duct 11, a wind shield 15 is arranged above an air outlet of the fan 9, the wind shield 15 is fixedly arranged at the joint of the sheet metal shell 1 and the control panel 7, radiating fins are arranged on one side, close to the air outlet 6, of the cooling air duct 11 at equal intervals, the battery core 4 is made of lithium iron phosphate electrode materials, and the output voltage of the fan 9 is 24V.

In this embodiment, when the battery module in the energy storage system needs to be cooled, the positive and negative plug and socket 8 is connected with a power supply, after the power supply is turned on, the fan 9 is started, and when the fan 9 discharges air to the outside of the battery pack according to different conditions of the two groups of small modules 1p8s2 in the battery pack, the air flow in the sheet metal shell 1 is accelerated after the fan 9 is started, so that heat in the sheet metal shell 1 is rapidly discharged through the through hole, and the temperature of the battery pack in the sheet metal shell 1 is reduced;

when the fan 9 blows air to the inside of the battery pack, wind power is discharged from the through holes, the wind shield 15 and the cooling air duct 11 play a certain guiding role on wind power air flow, so that cold air flow is directly blown to the inside of the metal plate shell 1 from the through holes, when wind power passes through the cooling air duct 11, air flow is discharged from the air outlets 6 again, wind power is uniformly sent to each battery core 4, due to the fact that the surface temperature of the battery core 4 is higher, the temperature of the wind power air flow is lower, heat on the surface of the battery core 4 is caused to flow circularly by utilizing heat convection when the surface temperature of the battery core 4 is unbalanced, heat is enabled to leave the surface of the battery core 4, and therefore the temperature of the surface of the battery core 4 can be effectively reduced, the temperature of the battery core 4 in the battery pack is uniformly and forcedly cooled by utilizing the fan 9 and the cooling air duct 11, the temperature rise of two groups of battery modules is smaller, the temperature of each battery core 4 is balanced, and the service life of the battery module is prolonged.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides an energy storage system forced air cooling battery module, includes panel beating casing (1), its characterized in that, equidistant distribution in bottom of panel beating casing (1) has a plurality of PCB to gather board (3), be equipped with two sets of little modules 1p8s (2) between PCB gathers board (3), little module 1p8s (2) include a plurality of battery core (4), battery core (4) set up between every two PCB that are located same one side gather board (3), every two connect through connecting aluminium row (5) between battery core (4), the both ends of little module 1p8s (2) are connected with positive and negative pole copper bar (13), positive and negative pole aluminium bar (14) respectively, the outer wall connection of panel beating casing (1) has bridging copper bar (12), and the bottom of little module 1p8s (2) is in through positive and negative pole aluminium bar (14) are connected on bridging copper bar (12), and the top of little module 1p8s (2) is connected through positive and negative pole copper bar (13) on the outer wall of panel beating casing (1).

2. The air-cooled battery module of the energy storage system according to claim 1, wherein the top end of the sheet metal shell (1) is connected with a control panel (7), both sides of the control panel (7) are respectively fixedly connected with a positive electrode plug socket (8) and a negative electrode plug socket (10) and a BMU battery module management system (10), a through hole is formed in the center of the control panel (7), the through hole is communicated with the inside of the sheet metal shell (1), and a fan (9) is arranged in the through hole.

3. The air-cooled battery module of the energy storage system according to claim 1, wherein a cooling air duct (11) is arranged between the two groups of small modules 1p8s (2), and an air outlet (6) is formed in one side, close to the battery core (4), of the cooling air duct (11).

4. The air-cooled battery module of the energy storage system according to claim 2, wherein a wind shield (15) is arranged above the wind gap of the fan (9), and the wind shield (15) is fixedly arranged at the joint of the sheet metal shell (1) and the control panel (7).

5. An energy storage system air-cooled battery module according to claim 3, wherein the cooling air duct (11) is provided with heat dissipation fins at equal intervals on one side close to the air outlet (6).

6. The energy storage system air-cooled battery module according to claim 1, wherein the battery cells (4) are lithium iron phosphate electrode materials.

7. The energy storage system air-cooled battery module according to claim 2, wherein the output voltage of the fan (9) is 24V.