Energy storage container air duct and energy storage container with the air duct

Abstract

The application discloses a kind of energy storage container air ducts and the energy storage container with the air duct, air duct includes at least one cluster wind channel, corresponding communication at the air outlet of air conditioner, along the direction of the air inlet end to the air outlet end of cluster wind channel, any cluster wind channel includes a main wind channel and several branch wind channels communicated with main wind channel and main wind channel is sequentially divided into air guide section, air collection section and positive wind section, branch wind channel corresponds with the number of battery cluster;Several cluster wind channels are one-to-one corresponding and arranged on the back of several battery clusters, and the panel of any cluster wind channel away from the back of its corresponding battery cluster is inclined plate arranged in the direction from the top to the bottom of its corresponding battery cluster towards the direction close to battery cluster, an air fan is arranged at the air inlet end of any cluster wind channel, and the air inlet end of any air fan is connected with the air outlet of a branch wind channel. By cluster flow and cluster flow, improve cooling effect, ensure the consistency of battery module, improve system life.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air duct structure, in particular to a kind of energy storage container air duct and energy storage container with the air duct. BACKGROUND

[0002] In energy storage system, container type lithium battery is used for energy storage, however, in many lithium battery energy storage, large heat is generated, in order to ensure the safe and reliable operation of battery, the battery needs to be cooled. The cooling of energy storage container battery generally uses air conditioner cooling, due to the dense arrangement of batteries in the energy storage container, direct air supply of air conditioner will cause different batteries to get different amount of cold air, which will cause temperature difference between batteries, affect the consistency of batteries, reduce system life, and the angle of cold air output cannot be controlled, therefore, it is necessary to improve the prior art to solve the above problems and use certain air duct structure for uniform cooling.

[0003] The existing energy storage container energy storage scheme has a distributed air conditioner cooling scheme, but the limitation is that the air conditioner refrigeration capacity does not match the heat generation of energy storage battery, and the air conditioner needs to be customized. The fan used in the air outlet of the air conditioner is a centrifugal fan, therefore, the cold air of the air conditioner refrigeration will be biased to one side under the action of the centrifugal fan, resulting in uneven cooling. SUMMARY

[0004] In view of the above technical problems, the present application aims to provide an energy storage container air duct and an energy storage container with the air duct.

[0005] The technical scheme of the present application is:

[0006] One of the purposes of the present application is to provide an energy storage container air duct, the energy storage container is provided with a plurality of battery clusters arranged side by side, the energy storage container is provided with at least one air conditioner using a centrifugal fan, and the air duct comprises:

[0007] At least one inter-cluster air duct, the air inlet end of which is connected to the air outlet of the air conditioner, in the direction from the air inlet end to the air outlet end of the inter-cluster air duct, any inter-cluster air duct comprises a main air duct and a plurality of branch air ducts connected to the main air duct, and the main air duct is sequentially divided into a guide air section, a wind collecting section and a straight air section, the guide air section is used to concentrate air conditioner air in the wind collecting section, the wind collecting section is used to concentrate the cold air biased to one side by the centrifugal fan of the air conditioner, and the straight air section is used to straighten and evenly distribute the concentrated cold air to a plurality of branch air ducts, and the number of branch air ducts corresponds to the number of battery clusters.

[0008] A plurality of cluster internal air ducts are arranged on the back of the plurality of battery clusters, and the panel of any cluster internal air duct away from the back of the corresponding battery cluster is a slope panel arranged to tilt towards the direction close to the top of the corresponding battery cluster from the top to the bottom of the corresponding battery cluster; a fan is arranged at the air inlet end of any cluster internal air duct, and the air inlet end of any fan is connected to the air outlet of a branch air duct.

[0009] Preferably, the air guide section is trumpet-shaped, and the longitudinal section of the air guide section decreases along the direction from the air inlet end to the air outlet end of the cluster internal air duct.

[0010] The air collection section is flat, and the caliber of the air collection section decreases along the direction from the air inlet end to the air outlet end of the cluster internal air duct.

[0011] The air straightening section is also flat, and the end of the air straightening section away from the air collection section is sequentially provided with a plurality of branch openings corresponding to the plurality of branch air ducts in the width direction, wherein all the branch openings located on both sides of the middle position are arranged to tilt and the tilt angle gradually increases from the middle to both sides.

[0012] Preferably, along the direction from the air inlet end to the air outlet end of the cluster internal air duct, the bottom panel of the air guide section is composed of a first slope panel and a first flat panel, the first slope panel extends upwardly and downwardly, the first flat panel is connected to and parallel with the bottom panel of the air collection section, the top panel of the air guide section is horizontally arranged and perpendicular to the air conditioner.

[0013] Preferably, the bottom panel of the air guide section, the air collection section and the air straightening section is an integral structure, the top panel is also an integral structure, and the side panel is also an integral structure.

[0014] Preferably, the volumes of all the branch air ducts are equal.

[0015] Preferably, along the direction from the air inlet end to the air outlet end of the cluster internal air duct, any cluster internal air duct includes an air guide duct and an air equalization duct, the air inlet end of the air guide duct is provided with the fan, the air guide duct is trumpet-shaped, and the caliber of the air guide duct decreases; the slope panel is the panel of the air equalization duct away from the back of the battery cluster.

[0016] Preferably, the bottom panel of the air guide duct is composed of a second slope panel and a second flat panel, the second slope panel is arranged to tilt towards the top end of the corresponding battery cluster from the outside to the inside, and the second flat panel is connected to the frame of the top end of the corresponding battery cluster.

[0017] Preferably, the number of the cluster internal air ducts is at least two, the at least two cluster internal air ducts are arranged to be laterally spaced apart along the top end of the energy storage container, and any cluster internal air duct is provided with at least two branch air ducts.

[0018] Preferably, any of the inter-cluster air ducts are respectively installed on the top end of the battery cluster and the top panel of the energy storage container through the support frame.

[0019] Another object of the present application is to provide an energy storage container comprising any of the above air ducts.

[0020] Compared with the prior art, the present application has the following advantages:

[0021] The energy storage container air duct of the present application improves the cooling effect of the battery cluster by setting inter-cluster air ducts and intra-cluster air ducts and by inter-cluster flow equalization and intra-cluster flow equalization, ensures the consistency of the battery modules in the battery cluster, improves the system life, and solves the problem of temperature difference between the battery modules in the battery cluster in the prior art, which affects the consistency of the battery and reduces the system life. BRIEF DESCRIPTION OF DRAWINGS

[0022] The present application will be further described below in conjunction with the drawings and examples:

[0023] Figure 1 FIG. 1 is a structural schematic diagram of an energy storage container air duct (containing a battery cluster and an air conditioner) according to an embodiment of the present application;

[0024] Figure 2 FIG. 2 is a top view structural schematic diagram of an energy storage container air duct (containing a battery cluster and an air conditioner) according to an embodiment of the present application;

[0025] Figure 3 FIG. 3 is a structural schematic diagram of an inter-cluster air duct of an energy storage container air duct according to an embodiment of the present application;

[0026] Figure 4 FIG. 4 is a sectional view schematic diagram of an intra-cluster air duct (containing a battery cluster) of an energy storage container air duct according to an embodiment of the present application;

[0027] Figure 5 FIG. 5 is a three-dimensional structural schematic diagram of an energy storage container according to an embodiment of the present application;

[0028] Figure 6 FIG. 6 is a longitudinal sectional view schematic diagram of an energy storage container (containing a battery cluster, an air conditioner and an air duct) according to an embodiment of the present application. Figure 5

[0029] 1, inter-cluster air duct; 11, main air duct; 111, air guide section; 1111, first inclined panel; 1112, first flat panel; 112, air collection section; 113, straight air section; 12, branch air duct; 2, intra-cluster air duct; 21, air guide air duct; 211, second inclined panel; 212, second flat panel; 22, flow equalization air duct; 221, inclined panel; 3, fan; 4, air conditioner; 5, battery cluster; 6, support frame; 7, container body. DETAILED DESCRIPTION ​

[0030] The objects, technical solutions and advantages of the present application will become more apparent after a reading of the following detailed description together with the attached drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present application. In addition, in the following description, the description of well-known structures and techniques has been omitted to avoid unnecessarily obscuring the concept of the present application.

[0031] Embodiment:

[0032] Referring to Figures 1 to 6The energy storage container air duct of the embodiment of the present application, wherein a plurality of battery clusters 5 are arranged side by side along the length direction of the container body 7 of the energy storage container, any battery cluster 5 is composed of a plurality of battery modules arranged in layers, at least one air conditioner 4 is arranged on the energy storage container, and the fan of the air conditioner 4 is a centrifugal fan. The air duct includes at least one inter-cluster air duct 1 and a plurality of intra-cluster air ducts 2. One end of the inter-cluster air duct 1, i.e. the air inlet end of the inter-cluster air duct 1, is connected to the air outlet of the air conditioner 4, and the other end of the inter-cluster air duct 1, i.e. the air outlet end of the inter-cluster air duct 1, is connected to the air inlet end of the intra-cluster air duct 2. The inter-cluster air duct 1 is arranged at the back of the battery cluster 5, used to provide cold air for cooling the battery modules in the battery cluster 5, and the back of each battery cluster 5 is provided with an intra-cluster air duct 2. The air inlet end of the inter-cluster air duct 1 is communicated with the air outlet of the air conditioner 4. Since the fan of the air conditioner 4 is a centrifugal fan, the cold air generated by the air conditioner 4 will be deflected to one side under the action of the centrifugal fan. In order to achieve the same air flow at the air outlet of the inter-cluster air duct 1 and achieve inter-cluster flow uniformity, the inter-cluster air duct 1 of the embodiment of the present application is divided into a main air duct 11 and a plurality of branch air ducts 12 along the direction from the air inlet end to the air outlet end of the inter-cluster air duct 1. The main air duct 11 includes a guide air section 111, a converging air section 112 and a straight air section 113. The guide air section 111 is tapered and its longitudinal cross section decreases along the direction from the air inlet end to the air outlet end of the inter-cluster air duct 1, i.e. the direction of air flow, so as to guide and converge the cold air blown out of the air outlet of the air conditioner 4 to the converging air section 112. The converging air section 112 is flat and its cross section gradually decreases along the direction from the air inlet end to the air outlet end of the inter-cluster air duct 1, i.e. the direction of air flow, so as to converge the cold air deflected to one side by the centrifugal fan of the air outlet of the air conditioner 4. The straight air section 113 is also flat and its size is consistent in all directions along the direction of air flow, so as to guide the converged cold air to the branch air ducts 12 and then uniformly distribute the cold air to the air inlets of the battery clusters 5, achieving inter-cluster flow uniformity. The air inlet end of the intra-cluster air duct 2 is provided with a fan 3, used to guide the cold air of the air conditioner 4 from the air inlet end of the inter-cluster air duct 1, i.e. the upper end of the battery cluster 5, to the lower end of the intra-cluster air duct 2, i.e. the lower end of the battery cluster 5. Specifically, the panel of the intra-cluster air duct 2 in the embodiment of the present application is a panel away from the back of the battery cluster 5 (it is to be noted that the inter-cluster air duct 1 is surrounded by two side plates and one panel to form a U-shaped air duct, i.e. one side of the inter-cluster air duct 1 facing the battery cluster 5 is open, so as to blow the cold air in the inter-cluster air duct 1 to the battery modules of the battery cluster 5, forming cooling and heat dissipation for the battery modules in the battery cluster 5) and is designed as an inclined plate 221 arranged in a direction inclined to the battery cluster 5 from the top end to the bottom end of the battery cluster 5. Through the arrangement of the inclined plate 221, the temperature and speed of the cooling cold air of the lower battery modules are consistent with those of the upper battery modules, the cold air is uniformly distributed behind the battery cluster 5, achieving intra-cluster flow uniformity, improving the cooling effect of the lower battery modules, and further improving the cooling effect of the cold air on the entire battery cluster 5.The air duct of the present application, by setting the inter-cluster air duct 1 and the intra-cluster air duct 2, and by designing the structure of the air duct, achieves inter-cluster flow equalization and intra-cluster flow equalization, thereby achieving uniform cooling, and the purpose is to improve the cooling effect.

[0033] According to some embodiments of the present application, as shown in Figure 1 , Figure 2 and Figure 5 , the number of air conditioners 4 of the present application is two, as shown in Figures 1 to 3 , the number of inter-cluster air ducts 1 is also two, and the two are one-to-one corresponding. As shown in Figures 1 to 3 , the number of branch air ducts 12 of each inter-cluster air duct 1 is three, and the three branch air ducts 12 are respectively connected to three intra-cluster channels, and each intra-cluster channel corresponds to one battery cluster 5. It should be noted that the number of inter-cluster air ducts 1 can also be other numbers, such as one, three, etc., which can correspond to the number of air conditioners 4. The number of branch air ducts 12 is not limited, and when only one inter-cluster channel is provided, the number of branch air ducts 12 can correspond to the number of battery clusters 5. When at least two inter-cluster channels are provided, the number of branch air ducts 12 of each inter-cluster air duct 1 is also not limited, and is at least two, such as two, three, four, etc., as long as it corresponds to the number of battery clusters 5. The number of inter-cluster air ducts 1 is not particularly limited, as long as it corresponds to the number of battery clusters 5.

[0034] According to some embodiments of the present application, as shown in Figure 3As shown, the air guide section 111 is composed of two side panels, a top panel and a bottom panel, wherein the top panel is a flat panel and is arranged perpendicularly to the air conditioner 4, so as to ensure that the air flow direction of the cluster inter-air duct 1 at the bifurcation node is perpendicular to the air conditioner 4. The bottom panel is composed of a first inclined panel 1111 and a second flat panel 1112, the first inclined panel 1111 extends from the air inlet end to the air outlet end of the cluster inter-air duct 1, that is, the air flow direction is inclined from bottom to top and is connected with the first flat panel 1112, and the first flat panel 1112 is arranged horizontally, that is, parallel to the top panel. That is to say, the air guide section 111 is composed of a conical part and a square part, forming an air guide duct 21 with a horn-shaped mouth at both ends. The conical part can guide the air flow, and the square part can converge the air flow to the air collecting section 112 at the rear end. The air collecting section 112 is also composed of a top panel, a bottom panel and two side panels, wherein the top panel and the bottom panel are arranged in parallel to form a flat shape, and the top panel is at the same horizontal plane as the top panel of the air guide section 111. Along the air flow direction, the size of the top panel and the bottom panel of the air collecting section 112 decreases, that is, the air collecting section 112 is a tapered flat air duct with a gradually reduced diameter, for converging the air flow deviated to one side. The straight air section 113 is also composed of two side panels, a bottom panel and a top panel, and the top panel is at the same horizontal plane as the top panel of the air collecting section 112, and the two side panels are arranged in parallel. The straight air section 113 is provided with a plurality of (three in the drawings of the present application, not limited to three, and can be other numbers) branch openings at the end away from the air collecting section 112. The branch openings located at the middle position on both sides are arranged obliquely, and the oblique angles gradually increase from the middle to both sides. Preferably, the corresponding panels of the air guide section 111, the air collecting section 112 and the straight air section 113 are of an integral structure, which is convenient for processing and low in cost. Alternatively, the air guide section 111, the air collecting section 112 and the straight air section 113 can be formed by welding or using connecting pieces and sealing. For the branch air duct 12, the specific shape is not limited, as long as the volumes of all the branch air ducts 12 are the same, so as to ensure that the air flow of each branch air duct 12 is the same, thereby realizing uniform flow among clusters. The control of the branch air flow can be obtained according to the simulation software simulation of the bifurcation angles at different positions. Similarly, the inclination angle of the first inclined panel 1111 is not limited, and a reasonable taper can be obtained according to the simulation software simulation.

[0035] According to some embodiments of the present application, as Figure 4As shown, in the direction from the air inlet end to the air outlet end of the intra-cluster air duct 2, any intra-cluster air duct 2 comprises a guide air duct 21 and a flow uniformizing air duct 22, the air inlet end of the guide air duct 21 is provided with the fan 3, the guide air duct 21 is trumpet-shaped, and the caliber of the guide air duct 21 decreases; the inclined plate 221 is a panel of the flow uniformizing air duct 22 away from the back of the battery cluster 5. Specifically, the bottom panel of the guide air duct 21 is composed of a second inclined panel 211 and a second flat panel 212, the second inclined panel 211 is arranged obliquely from outside to inside and close to the top end of the corresponding battery cluster 5, and the second flat panel 212 is connected with the frame body at the top end of the corresponding battery cluster 5. That is, the air inlet end of the intra-cluster air duct 2 is also trumpet-shaped, which is convenient for guiding the air flow of each branch air duct 12 by the guide air duct 21 and converging to the flow uniformizing air duct 22 of the intra-cluster air duct 2 provided with the inclined plate 221, and then uniformly distributing the cold air flow to the battery modules in the battery cluster 5 to realize the flow uniformizing cooling in the battery cluster 5.

[0036] It should be noted that the inter-cluster air duct 1 of the embodiment of the present application is arranged at the top of the battery cluster 5, and in order to install the inter-cluster air duct 1, a support frame 6 (fixedly connected by fixing members such as bolts) is arranged between the bottom of the inter-cluster air duct 1 and the battery cluster 5, and the top end of the inter-cluster air duct 1 is connected with the inner top of the box body 7 of the energy storage container (preferably, the connection frame can be used and fixedly connected by fixing members such as bolts).

[0037] In summary, the air duct of the embodiment of the present application improves the cooling effect of the battery cluster 5 by arranging the inter-cluster air duct 1 and the intra-cluster air duct 2 and realizing the inter-cluster flow uniformizing and the intra-cluster flow uniformizing, and solves the problem that the temperature difference of the battery modules in the battery cluster 5 in the prior art affects the consistency of the battery and reduces the system life.

[0038] The embodiment of the present application also provides an energy storage container, which comprises the air duct of the above-mentioned embodiment, further comprises a box body 7, at least one air conditioner 4 arranged at the front of the box body 7, a fan of the air conditioner 4 is a centrifugal fan, and a plurality of vertically arranged battery clusters 5 arranged side by side are arranged in the interior of the box body 7, and any battery cluster 5 is composed of a plurality of battery modules arranged in layers. Since the air duct of the above-mentioned embodiment is used, at least the beneficial effects of the air duct of the above-mentioned embodiment are achieved, that is, the heat dissipation is uniform, the consistency of the battery modules in the battery cluster 5 is ensured, the cooling effect of the overall battery cluster 5 is improved, and the system life is improved.

[0039] It should be understood that the above specific embodiments of the present application are only used for illustrative or explanatory purposes of the principles of the present application, and do not constitute a limitation on the present application. Therefore, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present application shall be included in the protection scope of the present application. In addition, the appended claims of the present application are intended to cover all variations and modifications falling within the scope and boundary of the appended claims, or the equivalent forms of such scope and boundary.

Claims

1. An energy storage container air duct, wherein a plurality of battery clusters are arranged side by side in the energy storage container, characterized in that, The energy storage container is provided with at least one air conditioner using a centrifugal fan, and the air duct comprises: At least one inter-cluster air duct, the air inlet end of which is connected to the air outlet of the air conditioner, and in the direction from the air inlet end to the air outlet end of the inter-cluster air duct, any inter-cluster air duct comprises a main air duct and a plurality of branch air ducts connected to the main air duct, and the main air duct is sequentially divided into a guide air section, a convergence air section and a straight air section, the guide air section is used to converge air from the air conditioner to the convergence air section, the convergence air section is used to converge cold air from one side of the centrifugal fan, and the straight air section is used to straighten and evenly distribute the converged cold air to a plurality of branch air ducts, and the number of branch air ducts corresponds to the number of battery clusters. A plurality of intra-cluster air ducts are arranged on the back of the plurality of battery clusters, and the panel of any intra-cluster air duct away from the back of the corresponding battery cluster is a inclined plate arranged from the top to the bottom of the corresponding battery cluster to the direction close to the battery cluster, a fan is arranged at the air inlet end of any intra-cluster air duct, and the air inlet end of any fan is connected to the air outlet of the corresponding branch air duct. The guide air section is trumpet-shaped, and in the direction from the air inlet end to the air outlet end of the inter-cluster air duct, the longitudinal section of the guide air section becomes smaller. The convergence air section is flat, and in the direction from the air inlet end to the air outlet end of the inter-cluster air duct, the diameter of the convergence air section gradually decreases. The straight air section is also flat, and the size of the straight air section is consistent in the direction of air flow, and the end of the straight air section away from the convergence air section is sequentially provided with a plurality of branch openings corresponding to the plurality of branch air ducts, wherein all branch openings located on both sides of the middle position are inclined and the inclination angle gradually increases from the middle to both sides.

2. An energy storage container air duct according to claim 1, wherein, In the direction from the air inlet end to the air outlet end of the inter-cluster air duct, the bottom panel of the guide air section is composed of a first inclined panel and a first flat panel, the first inclined panel extends from bottom to top, the first flat panel is connected to and parallel with the bottom panel of the convergence air section, the top panel of the guide air section is horizontally arranged and perpendicular to the air conditioner.

3. An energy storage container air duct according to claim 1, wherein, The bottom panel, top panel and side panel of the guide air section, convergence air section and straight air section are integrated structures.

4. An energy storage container air duct according to any one of claims 1 to 3, wherein, The volumes of all branch air ducts are equal.

5. An energy storage container air duct according to claim 1, wherein, In the direction from the air inlet end to the air outlet end of the intra-cluster air duct, any intra-cluster air duct comprises a guide air duct and an equal-flow air duct, the air inlet end of the guide air duct is provided with the fan, the guide air duct is trumpet-shaped, and the diameter of the guide air duct decreases; and the inclined panel is the panel of the equal-flow air duct away from the back of the battery cluster.

6. An energy storage container air duct according to claim 5, wherein, The bottom panel of the guide air duct is composed of a second inclined panel and a second flat panel, the second inclined panel is arranged from the outside to the inside close to the top end of the corresponding battery cluster, and the second flat panel is connected to the frame of the top end of the corresponding battery cluster.

7. An energy storage container air duct according to claim 1, wherein, The number of inter-cluster air ducts is at least two, and at least two inter-cluster air ducts are arranged horizontally and spaced apart at the top end of the energy storage container, and any inter-cluster air duct is provided with at least two branch air ducts.

8. An energy storage container air duct according to claim 1 or 7, wherein, Any inter-cluster air duct is respectively mounted on the top end of the battery cluster and the top panel of the energy storage container by a support frame.

9. An energy storage container, characterized by The energy storage container air duct according to any one of claims 1-8.

Images