An energy storage system with air-cooled air duct structure

Abstract

The present application relates to the technical field of energy storage equipment, in particular to an energy storage system with air-cooled air duct structure, comprising an energy storage frame, a battery cluster frame, a battery plug-in box and a primary air duct structure; the air duct structure is improved, that is, the battery cluster frame and the plurality of battery plug-in boxes thereon in the energy storage system are cooled by setting a primary air duct main body and a primary air duct side plate, achieving better cooling effect and ensuring the operation stability and safety of the energy storage system. Meanwhile, no fan is arranged on the battery plug-in box, and the position of the fan is set in the primary air duct structure, changing the traditional way of separately arranging fan assemblies on each battery plug-in box, that is, no fan needs to be arranged on the battery plug-in box, which can greatly reduce the number of fan settings in the overall product, effectively reduce energy consumption and the failure probability of the equipment; meanwhile, it can also effectively solve the deficiency of relying solely on air conditioner air volume, achieve good heat exchange effect and greatly reduce the failure risk and safety hazard of the overall energy storage system.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy storage devices, in particular to an energy storage system with air-cooled air duct structure. BACKGROUND

[0002] The heat dissipation effect of the battery in the energy storage system will affect the service life, operation reliability and safety performance of the whole product, so the cooling and heat dissipation mode of the energy storage system has been widely concerned and valued. Among them, the air-cooled form has become the mainstream cooling mode of the energy storage system due to its simple structure, convenient maintenance and other advantages. At present, most of the batteries applied in large-capacity energy storage systems are square lithium batteries, which are composed of multiple battery groups, and multiple battery groups are composed of battery plug-in boxes, and different numbers of battery plug-in boxes form a battery cluster, and finally multiple battery clusters form an energy storage system with different capacities.

[0003] The battery plug-in box of the common air-cooled form is usually provided with multiple fans, which not only increases the power consumption of the energy storage system, but also increases the damage rate of the fans. The prior art improves the air-cooled fan and installs only one fan on the battery plug-in box, but once the fan stops rotating or has other problems, the battery plug-in box has no heat dissipation capacity, which reduces the number of fans but increases the safety hazard of the overall energy storage system. In some prior art, an air conditioner is used to realize heat exchange of the overall energy storage system, but the energy storage system is a product that needs to be frequently charged and discharged, and the heat dissipation heat is closely related to the charging and discharging rate, that is, the heat dissipation heat is not fixed; especially in the high-rate charging and discharging state, it is difficult to meet the heat dissipation demand of the energy storage system. In addition, the energy storage system generally has multiple battery plug-in box assemblies arranged at different distances from the refrigeration assembly, and the battery plug-in boxes at different positions usually have different temperature rises, the heat dissipation uniformity is poor, and in severe cases, it will also affect the operation stability and safety of the overall energy storage system. Therefore, how to provide an air-cooled structure that can adapt to the heat dissipation demand of the energy storage system and realize uniform heat dissipation performance is of great significance to the safe and stable operation of the energy storage system. SUMMARY

[0004] The purpose of the present application is to provide an energy storage system with air-cooled air duct structure to solve the problems in the background art.

[0005] To solve the above technical problems, the technical solution provided by the present application is to provide an energy storage system with air-cooled air duct structure, which comprises an energy storage frame, a battery cluster rack, a battery plug-in box and a primary air duct structure. The battery cluster rack is arranged inside the energy storage frame, the battery plug-in boxes are uniformly arranged on the battery cluster rack, and the primary air duct structure is arranged on the outside of the battery cluster rack.

[0006] The primary air duct structure comprises a primary air duct body, a primary air duct side plate, a primary air duct inlet and a primary air duct outlet, the primary air duct body is provided with the primary air duct inlet at the front end, and the tail end is connected with the primary air duct side plate, the primary air duct outlet is arranged on the primary air duct side plate and is uniformly provided with a plurality of primary air duct outlets, the primary air duct body is arranged at the top end of the battery cluster frame, and the primary air duct side plate is arranged at the back side of the battery cluster frame.

[0007] On the basis of the above technical scheme, the battery plug-in box comprises a box body, a battery module, a plug-in box air inlet and a plug-in box air outlet, the battery module is arranged in the box body and is spaced apart from each other, the battery module comprises a plurality of batteries and is spaced apart from each other, and the plug-in box air inlet and the plug-in box air outlet are both arranged on the box body.

[0008] On the basis of the above technical scheme, the plug-in box air inlet is arranged at the back of the box body and is correspondingly arranged with the primary air duct outlet, the plug-in box air outlet is symmetrically arranged at the end of the box body, and the box body is provided with a plug-in box baffle and is arranged on one side of the battery module.

[0009] On the basis of the above technical scheme, the plug-in box air inlet is arranged at the side of the box body and is provided with a plurality of plug-in box air inlets, the plug-in box air outlet is arranged at the end of the box body, and the primary air duct outlet is correspondingly arranged between the battery plug-in boxes or between the battery plug-in box and the inner side wall of the energy storage frame.

[0010] On the basis of the above technical scheme, a secondary air duct structure is further arranged at the front end of the primary air duct structure, the secondary air duct structure comprises a secondary air duct cavity, a secondary air duct inlet and a secondary air duct outlet, the secondary air duct inlet is arranged at both ends of the secondary air duct cavity and is communicated with a refrigeration assembly, the secondary air duct outlet is arranged at both sides of the secondary air duct cavity and is uniformly provided with a plurality of secondary air duct outlets, the secondary air duct outlet is communicated with the primary air duct inlet, and a secondary air duct baffle is arranged at the secondary air duct outlet in the middle region.

[0011] On the basis of the above technical scheme, a fan is further arranged, the fan is arranged on the side wall of the primary air duct body and is communicated with the primary air duct body.

[0012] On the basis of the above technical scheme, an anti-backflow assembly is arranged on the inner side of the fan, the anti-backflow assembly comprises an air duct one-way plate and a limiting plate, the air duct one-way plate is arranged on one side of the fan air outlet and is hinged at the top end to the inner side wall of the primary air duct body, and the limiting plate is arranged at the bottom end of the air duct one-way plate and is located on the side close to the fan.

[0013] On the basis of the above technical scheme, an air duct baffle is arranged on the inner side wall of the primary air duct side plate, and the air duct baffle is arranged in the primary air duct side plate close to the primary air duct body.

[0014] On the basis of the above technical scheme, the inside of the side plate of the first air duct is fixedly provided with a vertical plate, and a plurality of transverse ventilation grooves are formed in the vertical plate.

[0015] On the basis of the above technical scheme, the inside of the side plate of the first air duct is fixedly provided with a vertical plate, and a plurality of transverse ventilation grooves are formed in the vertical plate.

[0016] The technical scheme provided by the application has the following beneficial effects:

[0017] 1. The energy storage system with the air-cooled air duct structure is provided, the air duct structure is improved, that is, the battery cluster frame and the plurality of battery plug-in boxes thereon in the energy storage system are cooled by the first air duct body and the first air duct side plate, better cooling effect is achieved, and the operation stability and safety of the energy storage system are ensured. Meanwhile, no fan is arranged on the battery plug-in box, the position of the fan is arranged in the first air duct structure, and the traditional mode of separately arranging a fan assembly on each battery plug-in box is changed, that is, no fan needs to be arranged on the battery plug-in box, the number of fans arranged in the overall product can be greatly reduced, the energy consumption is effectively reduced, and the failure probability of the equipment is reduced. Meanwhile, the deficiency of simply relying on the air volume of the air conditioner can be effectively solved, the air volume required for heat exchange of the overall energy storage system is increased, and the improvement of the air duct structure thereon can achieve timely cooling of the energy storage system and the battery plug-in box, the heat exchange effect is very good, and the failure risk and safety hazard of the overall energy storage system are greatly reduced.

[0018] 2. The second air duct structure is arranged in cooperation with the first air duct structure, and a plurality of first air duct structures are arranged on the second air duct structure, so that when a plurality of battery cluster frames are arranged in the energy storage frame body, the plurality of battery cluster frames can be cooled at the same time, the cooling effect of the overall energy storage system is good, the cooling demand of different numbers of battery cluster frames can be met, and the applicability is good.

[0019] 3. The air duct baffle is arranged on the inner wall of the first air duct side plate of the energy storage system, especially at the position close to the first air duct body, that is, the position close to the air inlet of the first air duct side plate, so that the internal pressure in the first air duct side plate can be effectively improved. Meanwhile, the second air duct baffle is arranged, the air volume and pressure in the second air duct structure can be uniformly distributed, according to the principle of aerodynamics, the air volume is large and the air pressure is small at the position far away from the air outlet, therefore, the second air duct baffle is arranged at the second air duct outlet in the middle region, and the second air duct baffle has a certain blocking effect, so that the air volume blown out from the second air duct outlets at different positions can be kept relatively consistent, the uniformity of the cooling effect of the electrical elements at different positions in the energy storage system is ensured, and the temperature rise is more uniform. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic view of the energy storage system after the upper cover body is removed in the application;

[0021] Figure 2 is a structural schematic diagram of the air-cooled air duct structure in the present application;

[0022] Figure 3 is a structural schematic diagram of the primary air duct in the present application;

[0023] Figure 4 is a front view of the primary air duct in the present application;

[0024] Figure 5 is Figure 4 a sectional view at A-A in the present application;

[0025] Figure 6 is Figure 5 a partial enlarged view at B in the present application, wherein the air duct one-way plate is in an open state;

[0026] Figure 7 is a structural schematic diagram of the secondary air duct in the present application;

[0027] Figure 8 is a structural schematic diagram of the secondary air duct outlet and the secondary air duct baffle in the present application;

[0028] Figure 9 is a structural schematic diagram of the refrigeration assembly in the present application;

[0029] Figure 10 is a structural schematic diagram of the battery cluster rack in the present application;

[0030] Figure 11 is a structural schematic diagram of the battery plug-in box in the present application;

[0031] Figure 12 is a partial exploded view of the battery plug-in box in the present application;

[0032] Figure 13 is a structural schematic diagram of the battery module in the present application; DETAILED DESCRIPTION

[0033] The present application will be further described below in conjunction with the drawings and embodiments:

[0034] In the present application, unless otherwise explicitly specified and limited, the terms “mounting”, “connection”, “connecting”, “fixing” and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] In the description of the present application, it should be understood that the terms "left", "right", "front", "back", "top", "bottom", etc. indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0036] Embodiment 1

[0037] As Figures 1 to 13 shown, an energy storage system with air-cooled air duct structure, comprising an energy storage frame 1, a battery cluster rack 2, a battery plug-in box 3 and a primary air duct structure 4, the battery cluster rack 2 is arranged in the inside of the energy storage frame 1, the battery plug-in box 3 is uniformly arranged on the battery cluster rack 2, and the primary air duct structure 4 is correspondingly arranged on the outside of the battery cluster rack 2.

[0038] The primary air duct structure 4 comprises a primary air duct main body 41, a primary air duct side plate 42, a primary air duct inlet 43 and a primary air duct outlet 44, the primary air duct main body 41 is provided with a primary air duct inlet 43 at the front end, and the tail end is connected with the primary air duct side plate 42, the primary air duct outlet 44 is arranged on the primary air duct side plate 42 and is uniformly provided with a plurality of primary air duct outlets, the primary air duct main body 41 is arranged at the top end of the battery cluster rack 2, and the primary air duct side plate 42 is arranged at the back side of the battery cluster rack 2.

[0039] The present application provides an energy storage system with air-cooled air duct structure, which improves the air duct structure, that is, by arranging a primary air duct main body 41 and a primary air duct side plate 42 to dissipate heat from the battery cluster rack 2 and the plurality of battery plug-in boxes 3 arranged thereon in the energy storage system, so as to achieve better heat dissipation effect and ensure the operation stability and safety of the energy storage system. Specifically, the primary air duct inlet 43 is connected with a refrigeration assembly, preferably, the refrigeration assembly can adopt an air conditioner to provide cold air in the primary air duct structure; the primary air duct main body 41 is arranged at the top end of the battery cluster rack 2, and the primary air duct side plate 42 is arranged at the back side of the battery cluster rack 2, that is, the primary air duct main body 41 and the primary air duct side plate 42 are arranged vertically, and the cold air is blown into each battery plug-in box 3 through the primary air duct outlet 44 to dissipate the heat generated therein, so as to achieve excellent heat dissipation effect.

[0040] On the basis of the above technical scheme, the battery plug-in box 3 comprises a box body 31, a battery module 32, a plug-in box air inlet 33 and a plug-in box air outlet 34, the battery module 32 is arranged in the box body 31 and is spaced apart from each other, the battery module 32 comprises a plurality of batteries 321 and is spaced apart from each other, and the plug-in box air inlet 33 and the plug-in box air outlet 34 are both arranged on the box body 31.

[0041] The battery plug-in box 3 provided in the application is not provided with a fan, and the normal heat dissipation and heat exchange performance of the energy storage system can be met by improving the internal ventilation structure of the battery plug-in box 3, and the operation stability is good; while the safety hidden danger is not improved, the number of fans is greatly reduced for the whole battery cluster and the energy storage system, the failure probability of the equipment is effectively reduced, the energy consumption is reduced, and the energy-saving effect is realized; by improving the internal air duct of the battery plug-in box 3, a set of efficient and power-free air duct structure is formed in the battery plug-in box, the better ventilation and heat dissipation effect of the battery plug-in box is realized, and the heat dissipation performance of the whole energy storage system is realized together with the air duct structure of the energy storage system, and the operation stability of the whole machine is improved.

[0042] On the basis of the above technical scheme, the plug-in box air inlet 33 is arranged at the back of the box body 31 and corresponds to the first-stage air duct outlet 44, the plug-in box air outlet 34 is symmetrically arranged at the end of the box body 31, and the plug-in box baffle 35 is arranged in the box body 31 and at one side of the battery module 32.

[0043] In a preferred embodiment of the application, the plug-in box air inlet 33 is arranged at the back of the battery plug-in box 3, that is, the plug-in box air inlet 33 corresponds to the first-stage air duct outlet 44 arranged on the first-stage air duct side plate 42, the cold air in the first-stage air duct main body 41 flows out from the first-stage air duct outlet 44 in the first-stage air duct side plate 42, and correspondingly enters the plug-in box air inlet 33. Under the blocking action of the plug-in box baffle 35, the air flows along the side wall of the battery module 32, and a certain gap is also arranged between the batteries 321 in the battery module 32 and the batteries 321, so that the air flows through the gap between the batteries 321 in the process of flowing along the side wall of the battery module 32, and then flows directly forward in the space region between the battery modules 32, and finally leaves the battery plug-in box 3 through the plug-in box air outlet 34, thereby realizing heat dissipation of the multiple batteries 321 in the battery plug-in box 3.

[0044] On the basis of the above technical scheme, the second-stage air duct structure 5 is arranged at the first end of the first-stage air duct structure 4, the second-stage air duct structure 5 comprises a second-stage air duct cavity 51, a second-stage air duct inlet 52 and a second-stage air duct outlet 53, the second-stage air duct inlet 52 is arranged at both ends of the second-stage air duct cavity 51 and is communicated with the refrigeration assembly 6, the second-stage air duct outlet 53 is arranged at both sides of the second-stage air duct cavity 51 and is uniformly provided with multiple second-stage air duct outlets, the second-stage air duct outlet 53 is communicated with the first-stage air duct inlet 43, and the second-stage air duct baffle 54 is arranged at the second-stage air duct outlet 53 in the middle region.

[0045] Preferably, the refrigeration assembly 6 is arranged as an air conditioner, the air conditioner comprises an air conditioner air outlet 61 and an air conditioner air inlet 62, the air conditioner air inlet 62 is communicated with the second-stage air duct inlet 52, and cold air is provided in the energy storage system.

[0046] By setting the secondary air duct structure 5 in cooperation with the primary air duct structure 4, and setting a plurality of primary air duct structures 4 on the secondary air duct structure 5, the heat dissipation effect of the overall energy storage system is good, and the heat dissipation demand of different numbers of battery cluster racks 2 can be met, and the applicability is good. In the application, the secondary air duct inlets 52 are arranged at both ends of the secondary air duct cavities 51, and the secondary air duct baffles 54 are arranged, so that the air volume and pressure in the secondary air duct structure 5 are uniform. According to the principle of aerodynamics, the air volume is large and the air pressure is small at a position far from the air outlet, so the secondary air duct baffle 54 is arranged at the secondary air duct outlet 53 in the middle region, which plays a certain blocking role, so that the air volume blown out from the secondary air duct outlets 53 at different positions is kept relatively consistent, and the uniformity of the heat dissipation effect of the electrical elements in the energy storage system is ensured, and the temperature rise is more uniform.

[0047] More preferably, by arranging the air conditioners at both ends of the secondary air duct cavities 51, a large air volume in the secondary air duct structure 5 can be achieved, and the safety and reliability of the overall system operation can be provided. When one of the air conditioners fails, the air volume in the overall air duct is provided by the other air conditioner.

[0048] In the application, the ventilation circulation process in the air duct structure is as follows: cold air is blown out from the air conditioner air outlet 61, enters the secondary air duct cavity 51 through the secondary air duct inlets 52 at both ends, and then enters the primary air duct main body 41 and the primary air duct side plate 41, respectively, so that the cold air is blown to the back or side of the battery cluster rack 2 and the battery insertion box 3 from the primary air duct outlet 44, thereby entering the inside of each battery insertion box 3 to exchange heat with the battery, so as to take away the heat from the battery, and the temperature of the battery decreases. After gathering after the battery insertion box, the air is sucked into the inside of the air conditioner through the air conditioner air inlet after the temperature of the air is lowered after heat exchange, and then the air is blown into the secondary air duct inlet from the air conditioner air outlet, to complete a complete ventilation circulation in the air duct.

[0049] On the basis of the above technical scheme, a fan 7 is further arranged, and the fan 7 is arranged on the side wall of the primary air duct main body 41 and is in through connection with the primary air duct main body 41.

[0050] In the application, the position of the fan 7 is arranged in the primary air duct structure 4, and the traditional mode of arranging a fan assembly on each battery insertion box is changed, that is, no fan needs to be arranged on the battery insertion box. Not only the number of fans arranged in the overall product can be greatly reduced, but also the energy consumption and the failure probability of the equipment can be effectively reduced. At the same time, the deficiency of relying solely on the air volume of the air conditioner can be effectively solved, the air volume required for heat exchange of the overall energy storage system is increased, and the improvement of the air duct structure can realize timely heat dissipation in the energy storage system and the battery insertion box, the heat exchange effect is very good, and the failure risk and safety hazard of the overall energy storage system are greatly reduced.

[0051] Preferably, the fan 7 is provided with multiple and symmetrical settings on the side wall of the primary air duct body 41. By providing multiple fans 7 on the primary air duct body 41, the required heat exchange air volume in the overall energy storage system can be effectively increased. In cooperation with the air conditioner, the heat dissipation requirements of the charging and discharging work at different rates in the energy storage system can be realized. In addition, the safety hazard of delayed heat dissipation of the overall energy storage system caused by the failure of a single fan can be avoided. In actual use, the number of fans to be turned on can be selected according to the heat exchange requirements, which is more convenient to use and has better applicability. More preferably, the type of the fan can be an axial fan or a centrifugal fan, etc.

[0052] On the basis of the above technical solution, the inner side of the fan 7 is provided with an anti-backflow assembly, the anti-backflow assembly comprises an air duct one-way plate 8 and a limiting plate 9, the air duct one-way plate 8 is arranged on the side of the fan outlet and is hinged to the inner side wall of the primary air duct body 41 at the top end, and the limiting plate 9 is arranged at the bottom end of the air duct one-way plate 8 and is located on the side close to the fan 7.

[0053] By providing the anti-backflow assembly at the fan outlet, under the cooperation of the limiting plate 9 and the air duct one-way plate 8, the reverse flow of air is effectively prevented, that is, the phenomenon of air flow short circuit caused by the reverse blowing of the air conditioner is avoided, and the temperature change of the air flowing through the battery plug-in box from the air conditioner is ensured. When the fan is turned on, the air volume in the air duct of the energy storage system can be increased, and when the fan is turned off, the air blown by the air conditioner can flow through the battery plug-in box and the battery to detect the change of the air temperature.

[0054] On the basis of the above technical solution, the inner side wall of the primary air duct side plate 42 is provided with an air duct baffle 45, and the air duct baffle 45 is arranged in the primary air duct side plate 42 close to the primary air duct body 41.

[0055] By providing the air duct baffle 45 on the inner side wall of the primary air duct side plate 42 of the energy storage system, especially at the position close to the primary air duct body 41, that is, at the position close to the air inlet of the primary air duct side plate 42, the internal pressure of the primary air duct side plate 42 can be effectively improved. According to the principle of aerodynamics, the air volume is larger at the position far from the air outlet, and the air duct baffle arranged at the upper position can make the air volume at the multiple primary air duct outlets 44 arranged from top to bottom basically consistent, so as to realize the uniform heat dissipation effect of the multiple battery plug-in boxes 3 on the battery cluster frame 2 in the energy storage system, and improve the operation reliability of the energy storage system.

[0056] On the basis of the above technical scheme, the inside of the first air duct side plate 42 is fixedly provided with a vertical plate 46, and a plurality of transverse ventilation grooves 47 are formed in the vertical plate 46.

[0057] By arranging the vertical plate 46 and the transverse ventilation grooves 47 formed in the vertical plate 46 in the first air duct side plate 42, the air volume on the left and right sides of the vertical plate 46 in the first air duct side plate 42 can be more uniform in the case that the first air duct side plate 42 is wide or the corresponding battery cluster frame is more, so that the uniformity of the heat dissipation effect between the multiple rows of battery clusters is ensured, and the operation stability is improved.

[0058] The working process of the application is as follows:

[0059] When the battery plug-in boxes in the energy storage system are in the charging and discharging state, the first air duct structure and the second air duct structure are opened, the fan 7 in the first air duct main body 41 is opened, and the air conditioner is in refrigeration operation at the same time, at this time, the air duct one-way plate 8 is blown open by the fan 7, and the air in the air duct is circulated and operated by the air conditioner and the fan 7 together. According to the heat dissipation air volume required by the different rates of the charging and discharging work of the battery plug-in boxes, the number of fans opened can be selected to meet different heat dissipation requirements, so that the heat dissipation effect is good and the applicability is stronger.

[0060] When the battery plug-in boxes in the energy storage system are not in the charging and discharging state, the first air duct structure and the second air duct structure are opened, the fan 7 in the first air duct main body 41 is closed, and the air conditioner is only in ventilation operation without refrigeration action, at this time, the air in the air duct is only circulated and operated by the air conditioner; in the closed state of the fan 7, the air duct one-way plate 8 is in a vertically downward state under the action of gravity, and since the air blown by the air conditioner has a certain pressure, the air duct one-way plate 8 will generate an outward force, but since the limiting plate 9 blocks the bottom end, the air duct one-way plate 8 can only be limited to be vertical, so that the air blown by the air conditioner cannot be blown back through the fan 7 in the opposite direction, so that the phenomenon of air flow short circuit will not occur, which ensures that the air entering the air conditioner inlet 62 flows through the battery plug-in box, and ensures that the air conditioner can monitor the temperature change in the battery plug-in box.

[0061] On the basis of the above technical scheme, the inside of the first air duct side plate 42 is fixedly provided with a vertical plate 46, and a plurality of transverse ventilation grooves 47 are formed in the vertical plate 46.

[0062] By arranging the vertical plate 46 and the transverse ventilation grooves 47 formed in the vertical plate 46 in the first air duct side plate 42, the air volume on the left and right sides of the vertical plate 46 in the first air duct side plate 42 can be more uniform in the case that the first air duct side plate 42 is wide or the corresponding battery cluster frame is more, so that the uniformity of the heat dissipation effect between the multiple rows of battery clusters is ensured, and the operation stability is improved.

[0063] The application realizes good heat dissipation effect, meets the ventilation and heat dissipation requirements of the overall energy storage system under various working conditions such as the state of not charging and discharging, the state of charging and discharging, and the state of different rate charging and discharging, greatly reduces the number of fans used, reduces power consumption and cost, is more energy-saving, and also reduces the failure probability of the equipment, and has excellent practical performance in actual application.

[0064] The air conditioner assembly can be obtained from the prior art, cold air is sent into the air duct structure through the air outlet of the air conditioner, and the heat after circulation is collected through the air inlet of the air conditioner and blown out from the air outlet of the air conditioner after being re-cooled. It should be noted that the above-mentioned first end and the last end are defined according to the direction of air flow; the back side of the battery cluster frame is defined according to the direction of placing the battery insertion box on the battery cluster frame, that is, the back side of the battery cluster frame corresponds to the back of the battery insertion box, which is opposite to the end of the battery insertion box, which is only for the convenience of description and understanding of the technical solution, and does not constitute a limitation on the present application.

[0065] Embodiment 2

[0066] On the basis of the above technical solution, different from the technical solution of embodiment 1, the insertion box air inlet 33 is arranged on the side of the box body 31 and is provided with a plurality of insertion box air inlets 33, the insertion box air outlet 34 is arranged at the end of the box body 31, and the first air duct outlet 44 is correspondingly arranged between the battery insertion boxes 3 or between the battery insertion boxes 3 and the inner side wall of the energy storage frame 1.

[0067] In a preferred embodiment of the application, the insertion box air inlet 33 is arranged on the side wall of the battery insertion box 3 and is provided with a plurality of insertion box air inlets 33, in which case the first air duct outlet 44 is correspondingly arranged in the gap between the battery insertion boxes 3 or between the battery insertion boxes 3 and the inner side wall of the energy storage frame 1, and does not need to be provided with an insertion box baffle 35, that is, the flowing air enters the inside of the battery insertion box 3 from the multiple insertion box air inlets 33 on the side, flows in the gap between the multiple batteries 321 in the battery module 32, then flows directly forward to the space area between the battery modules 32, and finally leaves the battery insertion box 3 after passing through the insertion box air outlet 34, thereby realizing heat dissipation of the multiple batteries 321 in the battery insertion box 3.

[0068] The energy storage system in the application can be provided as an energy storage container or an energy storage cabinet, and according to the type of the selected energy storage system and the number and arrangement of the battery cluster frames and battery insertion boxes arranged inside, the energy storage system is adaptively provided with a first air duct structure or a combination of a first air duct structure and a second air duct structure, thereby realizing excellent heat dissipation effect of the overall energy storage system.

[0069] The foregoing presents and describes the basic principles and main features of the application, and it is obvious to a person skilled in the art that the application is not limited to the details of the above-described exemplary embodiments, and the embodiments are to be regarded only as exemplary and non-limiting, the scope of the application being defined by the claims appended hereto rather than by the above description, and it is intended to embrace all variations falling within the meaning and scope of the equivalent elements of the claims.

[0070] Furthermore, it should be understood that, although the present specification describes exemplary embodiments, not every embodiment contains only one independent technical solution, and the present specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that a person skilled in the art can understand.

Claims

1. An energy storage system having an air-cooled air duct structure, characterized by, Including energy storage frame (1), battery cluster frame (2), battery plug-in box (3) and primary air duct structure (4), the battery cluster frame (2) is arranged in the inside of energy storage frame (1), the battery plug-in box (3) is evenly arranged on battery cluster frame (2), the primary air duct structure (4) is correspondingly arranged on the outside of battery cluster frame (2); The primary air duct structure (4) includes primary air duct body (41), primary air duct side plate (42), primary air duct inlet (43) and primary air duct outlet (44), the first end of the primary air duct body (41) is provided with the primary air duct inlet (43), the tail end is connected with the primary air duct side plate (42), the primary air duct outlet (44) is arranged on the primary air duct side plate (42) and is uniformly provided with a plurality of, the primary air duct body (41) is arranged at the top of battery cluster frame (2), the primary air duct side plate (42) is arranged on the back side of battery cluster frame (2);Further including fan (7), the fan (7) is arranged on the side wall of primary air duct body (41) and is connected with primary air duct body (41) through connection;Further including air duct one-way plate (8) and limiting plate (9), the air duct one-way plate (8) is arranged on the one side of fan outlet and the top end is hinged with the inner side wall of primary air duct body (41), the limiting plate (9) is arranged at the bottom end of air duct one-way plate (8) and is located on the side close to fan (7); The battery plug-in box (3) includes box (31), battery module (32), plug-in box air inlet (33) and plug-in box air outlet (34), the battery module (32) is arranged in the box (31) and is provided with spacing between each other, the battery module (32) includes a plurality of batteries (321) and is provided with a gap between each other, the plug-in box air inlet (33), the plug-in box air outlet (34) are all opened on the box (31).

2. The energy storage system having the air-cooled air duct structure according to claim 1, characterized in that, The plug-in box air inlet (33) is arranged on the back of the box (31) and is correspondingly arranged with the primary air duct outlet (44), the plug-in box air outlet (34) is symmetrically arranged on the end of the box (31), the box (31) is provided with plug-in box baffle (35) and is arranged on one side of battery module (32).

3. The energy storage system with air-cooled air duct structure according to claim 1, characterized in that, The plug-in box air inlet (33) is arranged on the side of the box (31) and is provided with a plurality of, the plug-in box air outlet (34) is arranged on the end of the box (31), the primary air duct outlet (44) is correspondingly arranged between battery plug-in box (3) and battery plug-in box (3) or between battery plug-in box (3) and the inner side wall of energy storage frame (1).

4. The energy storage system with air-cooled air duct structure according to claim 1, characterized in that, Also include secondary air duct structure (5) is arranged at the first end of the primary air duct structure (4), the secondary air duct structure (5) includes secondary air duct cavity (51), secondary air duct inlet (52) and secondary air duct outlet (53), the secondary air duct inlet (52) is arranged at both ends of the secondary air duct cavity (51) and is communicated with the refrigeration assembly (6), the secondary air duct outlet (53) is arranged at both sides of the secondary air duct cavity (51) and is uniformly provided with multiple, the secondary air duct outlet (53) is communicated with the primary air duct inlet (43) and is arranged, the secondary air duct outlet (53) is arranged at the intermediate region and is provided with the secondary air duct baffle (54).

5. The energy storage system with air-cooled air duct structure according to claim 1, characterized in that, The inner side wall of the primary air duct side plate (42) is provided with an air duct baffle (45), and the air duct baffle (45) is arranged in the primary air duct side plate (42) close to the primary air duct body (41).

6. The energy storage system with air-cooled air duct structure according to claim 1, characterized in that, The inside of the primary air duct side plate (42) is fixedly provided with a vertical plate (46), and a plurality of horizontal ventilation grooves (47) are formed in the vertical plate (46).

7. The energy storage system with air-cooled air duct structure according to claim 1, characterized in that, The inner side of the plug-in box air inlet (33) and the plug-in box air outlet (34) is provided with a dust screen.

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