CN202434668U - Forced air cooling system for large-scale combined lithium ion battery - Google Patents

Abstract

Translated fromChinese

本实用新型提供一种大型组合锂离子电池用强制风冷系统，它包括压缩器、带冷凝器的储气瓶、进气接口、电磁阀、供气管、超音速喷嘴、出风风道；所述储气瓶与压缩器相连，所述压缩空气经压缩器压缩后进入储气瓶存储降温；所述储气瓶连接一路或多路供气管，所述供气管经进气接口连接电磁阀，所述电磁阀连接一路或多路供气支管，所述供气支管上设有一个或多个超音速喷嘴，所述超音速喷嘴处在组合锂离子电池的储放容器内。本实用新型结构简单，具有占用空间小、降温效果明显、重量轻等特点，可为汽车动力电池包模块、储能电池包模块等组合电池提供风冷，具有很高实用价值及市场前景，尤其在大容量、高电压的储能电池、动力电池领域具有广泛的应用空间。

The utility model provides a forced air cooling system for a large combined lithium-ion battery, which includes a compressor, a gas storage bottle with a condenser, an air inlet interface, a solenoid valve, an air supply pipe, a supersonic nozzle, and an air outlet duct; The gas storage bottle is connected to the compressor, and the compressed air enters the gas storage bottle for storage and cooling after being compressed by the compressor; the gas storage bottle is connected to one or more air supply pipes, and the air supply pipe is connected to the solenoid valve through the air inlet interface, The solenoid valve is connected to one or more gas supply branch pipes, and one or more supersonic nozzles are arranged on the gas supply branch pipes, and the supersonic nozzles are located in the storage container of the combined lithium-ion battery. The utility model has the characteristics of simple structure, small space occupation, obvious cooling effect, light weight, etc., and can provide air cooling for combined batteries such as automobile power battery pack modules and energy storage battery pack modules, and has high practical value and market prospect, especially It has a wide application space in the field of large-capacity, high-voltage energy storage batteries and power batteries.

Description

A kind of large-scale combined lithium ion battery is used The forced air cooling

Technical field

The utility model relates to a kind of large-scale combined lithium ion battery and uses The forced air cooling.

Background technology

Lithium ion battery is in the so big capacity of similar power or energy storage, high-tension application scenario; Many connection in series-parallel that must relate to battery unit are used; Because each battery unit is distributed in different positions in whole system, radiating condition and surrounding environment are all inequality everywhere, therefore; Even the difference such as internal resistance, connection of not considering battery unit therefore, the temperature of each battery unit also has certain difference.These difference directly can cause self-discharge of battery different, and performance and life-span are also had different influences, thereby make the consistency of battery pack worsen, and then influence the performance and the life-span of entire cell system.In order to guarantee that each battery unit all has good radiating condition and environment, reload temperature control system in power brick is consistent or close being necessary the temperature of each battery.

At present; The air cooling system that adopts like the batteries of electric automobile system in the large-sized battery group system be commonly natural air cooled or forced convertion air-cooled; Its advantage is to save space and weight; But its cooling-down effect is not obvious, and the temperature field consistency is poor, and excellent in design, effect be reasonable also can only to reach 5 ℃ of the temperature difference with interior degree.Also have the part system to adopt the mode of water-cooled, be similar to water-bath, its advantage is the temperature high conformity, and each battery unit temperature difference can be controlled in 1-2 ℃, and shortcoming is the weight and volume that has increased system greatly, has reduced specific energy.

Summary of the invention

The purpose of the utility model is to provide a kind of large-scale combined lithium ion battery to use The forced air cooling, mainly solve present large-scale lithium ion battery group with heat management system in the problem that can not get both aspect heat management consistency and the specific energy two.For this reason, the utility model adopts following technical scheme: it comprises gas bomb, intake interface, electromagnetically operated valve, air supply pipe, superonic flow nozzzle, the air-out air channel of compressor reducer, band condenser; Said gas bomb links to each other with compressor reducer, and said compressed air gets into gas bomb storage cooling after compressor compresses; Said gas bomb connects one or more air supply pipe; Said air supply pipe connects electromagnetically operated valve through intake interface; Said electromagnetically operated valve connects one or more gas manifold; Said gas manifold is provided with one or more superonic flow nozzzles, and said superonic flow nozzzle is in the storage container of combination lithium ion battery.

Owing to adopt the technical scheme of the utility model; The medium of the utility model is through compressor reducer) be compressed to pressure 8-15Kg pressure after; Get into gas bomb/cool-down dehumidification, insert N road air supply pipe (N is according to the decision of thermal dissipating path number) through intake interface then, spray with supersonic speed via a plurality of superonic flow nozzzles (number of nozzle determines according to thermal dissipating path) of installing on the gas blow pipe of electromagnetically operated valve rear end; Gas ejection instantaneous pressure reduces; According to C1apeyron equation PV=nRT, gas temperature reduces, and can form cooling-down effect near each battery unit the nozzle.Gas after the heat absorption is discharged beyond the combination lithium ion battery storage container through the air-out air channel, and so circulation can realize the cooling to power brick.The utility model is simple in structure; Have take up room little, cooling-down effect is obvious, characteristics such as in light weight; Can be assembled batteries such as automobile power cell bag module, energy-storage battery bag module and provide air-cooled; Solved present large-scale lithium ion battery group with heat management system in the problem that can not get both aspect heat management consistency and the specific energy two; Therefore the utlity model has very high practical value and market prospects, especially have application space widely in big capacity, high-tension energy-storage battery, electrokinetic cell field.

On the basis of adopting technique scheme, the utility model also can adopt following further technical scheme:

Electromagnetically operated valve can be made up the control of the BMS system (battery management system) of lithium ion battery, thereby to the warm area control in practicable minute of combination lithium ion battery, carries out local cooling to the zone that local temperature is higher.

The battery management system BMS that compressor reducer is made up lithium ion battery controls.

The battery management system BMS that the gas bomb of band condenser is made up lithium ion battery controls, and constitutes initiatively The forced air cooling of a cover, thereby reduces power consumption.

The air-out air channel is inserted compressor reducer and is formed interior circulation, and refrigerating efficiency is higher.

In the formation in the air cooling system circulation working media be refrigerant, like carbon dioxide, freon etc.

Said superonic flow nozzzle comprises the nozzle body that links to each other with gas manifold through nut, and said nozzle body is connected with shower nozzle, and said shower nozzle is provided with the jet aperture of throttling, and shower nozzle has the diffusion hole that is bell mouth shape outside the jet aperture of throttling.

Description of drawings

Fig. 1 is the sketch map of the embodiment that the utility model provided.

Fig. 2 is the structural representation of superonic flow nozzzle.

Embodiment

The utility model comprisesgas bomb 2, intake interface 3, electromagnetically operated valve 4,air supply pipe 5, superonic flow nozzzle 6, the air-out air channel 7 of compressor reducer 1, band condenser; Saidgas bomb 2 links to each other with compressor reducer, and said compressed air gets into gas bomb storage cooling after compressor compresses; Saidgas bomb 2 connects one ormore gas manifold 5; Saidair supply pipe 5 connects electromagnetically operated valve 4 through intake interface 3; Said electromagnetically operated valve 4 connects one ormore gas manifold 8; Said gas manifold is provided with one or more superonic flow nozzzles 6, and said superonic flow nozzzle 6 is in the storage container of combination lithium ion battery.

The battery management system BMS that said electromagnetically operated valve 4 can be made up lithium ion battery controls.

The battery management system BMS that the work of compressor reducer 1 can be made up lithium ion battery controls.

The battery management system BMS that the switch of thegas bomb 2 of said band condenser can be made up lithium ion battery controls.

In general, the working media of said air cooling system is an air; But in force, circulation time in compressor reducer 1 formation is inserted in air-out air channel 7, in this case, the working media of circulation can not adopt air in the formation in the air cooling system, and two adopt refrigerants, like carbon dioxide, freon etc.

Said superonic flow nozzzle 6 comprises thenozzle body 61 that links to each other withgas manifold 8 throughnut 9, and saidnozzle body 61 is connected withshower nozzle 60, and saidshower nozzle 60 is provided with thejet aperture 62 of throttling, andshower nozzle 60 has thediffusion hole 63 that is bell mouth shape outside thejet aperture 62 of throttling.In the utility model, a plurality of superonic flow nozzzles 6 can be evenly distributed in the storage container of combination lithium ion battery, guarantees to give full play to cooling-down effect on the one hand, guarantees that on the other hand each regional temperature is more aligned in the combination lithium ion battery storage container.

Claims (7)

Translated fromChinese

1.一种大型组合锂离子电池用强制风冷系统，其特征在于它包括压缩器(1)、带冷凝器的储气瓶(2)、进气接口(3)、电磁阀(4)、供气管(5)、超音速喷嘴(6)、出风风道(7)；所述储气瓶（2）与压缩器相连，所述压缩空气经压缩器压缩后进入储气瓶存储降温；所述储气瓶（2）连接一路或多路供气管(5)，所述供气管（5）由进气接口(3)连接电磁阀(4)，所述电磁阀(4)连接一路或多路供气支管(8)，所述供气支管上设有一个或多个超音速喷嘴(6)，所述超音速喷嘴(6)处在组合锂离子电池的储放容器内。1. A forced air-cooling system for a large combined lithium ion battery is characterized in that it comprises a compressor (1), a gas storage bottle (2) with a condenser, an air inlet port (3), a solenoid valve (4), Air supply pipe (5), supersonic nozzle (6), air outlet duct (7); the gas storage bottle (2) is connected to the compressor, and the compressed air enters the gas storage bottle for storage and cooling after being compressed by the compressor; The gas storage bottle (2) is connected to one or more air supply pipes (5), the air supply pipe (5) is connected to the solenoid valve (4) through the air inlet port (3), and the solenoid valve (4) is connected to one or more Multi-channel gas supply branch pipes (8), one or more supersonic nozzles (6) are arranged on the gas supply branch pipes, and the supersonic nozzles (6) are located in the storage container of the combined lithium-ion battery.2.如权利要求1所述的一种大型组合锂离子电池用强制风冷系统，其特征在于所述电磁阀受组合锂离子电池的电池管理系统BMS控制。2. A forced air cooling system for a large-scale combined lithium-ion battery as claimed in claim 1, wherein the solenoid valve is controlled by the battery management system BMS of the combined lithium-ion battery.3.如权利要求1所述的一种大型组合锂离子电池用强制风冷系统，其特征在于压缩器(1) 受组合锂离子电池的电池管理系统BMS控制。3. A kind of forced air cooling system for large combined lithium ion battery as claimed in claim 1, is characterized in that compressor (1) is controlled by the battery management system BMS of combined lithium ion battery.4.如权利要求1所述的一种大型组合锂离子电池用强制风冷系统，其特征在于带冷凝器的储气瓶(2) 受组合锂离子电池的电池管理系统BMS控制。4. A kind of forced air cooling system for large-scale combined lithium-ion battery as claimed in claim 1, is characterized in that the gas storage bottle (2) with condenser is controlled by the battery management system BMS of combined lithium-ion battery.5.如权利要求1所述的一种大型组合锂离子电池用强制风冷系统，其特征在于出风风道(7)接入压缩器(1)形成内循环。5. A forced air cooling system for large combined lithium-ion batteries according to claim 1, characterized in that the air outlet duct (7) is connected to the compressor (1) to form an internal circulation.6.如权利要求5所述的一种大型组合锂离子电池用强制风冷系统，其特征在于风冷系统中的形成内循环的工作介质为制冷介质。6. A forced air-cooling system for a large combined lithium-ion battery as claimed in claim 5, characterized in that the working medium forming the internal circulation in the air-cooling system is a refrigeration medium.7.如权利要求1所述的一种大型组合锂离子电池用强制风冷系统，其特征在于所述超音速喷嘴包括通过螺帽和供气支管相连的喷嘴体，所述喷嘴体连有喷头，所述喷头设有节流喷气小孔，喷头在节流喷气小孔外具有呈喇叭口状的扩散孔。7. A kind of forced air cooling system for large combined lithium ion battery as claimed in claim 1, it is characterized in that said supersonic nozzle comprises the nozzle body that is connected with air supply branch pipe by nut, and said nozzle body is connected with nozzle , the nozzle is provided with a throttling air injection hole, and the nozzle has a trumpet-shaped diffusion hole outside the throttling air injection hole.

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