A cluster-level exhaust pipe and energy storage container

Abstract

This utility model provides a cluster-level exhaust pipe and an energy storage container, belonging to the field of new energy batteries. The exhaust pipe includes a first pipe and a second pipe. The first pipe is vertically arranged and has multiple exhaust ports spaced apart. These exhaust ports are connected to the explosion-proof valve of the cluster-level battery pack. The output end of the first pipe is connected to the input end of the second pipe, which is open to air. The cluster-level exhaust pipe and energy storage container provided by this utility model can solve the problem of low safety in existing technologies.

Description

Technical Field

[0001] This utility model relates to the field of new energy batteries, and in particular to a cluster-level exhaust pipe and an energy storage container. Background Technology

[0002] Lithium-ion battery energy storage containers achieve efficient and stable energy storage and release through lithium-ion recycling, modular design, intelligent management, and safety protection.

[0003] However, current lithium battery energy storage containers use traditional container-level thermal runaway protection measures, which only allow air to circulate inside the container. When a single battery pack experiences thermal runaway, it can easily cause other battery packs to also experience thermal runaway.

[0004] Therefore, the exhaust systems of existing lithium battery energy storage containers typically only involve air circulation inside the container, lacking separate handling of thermal runaway of individual battery packs, resulting in lower safety. Utility Model Content

[0005] This utility model provides a cluster-level exhaust pipe and energy storage container, which can solve the problem of low safety in the prior art. The technical solution is as follows: In a first aspect, a cluster-level exhaust pipe for connecting a cluster-level battery pack includes: a first pipe and a second pipe. The first pipeline is arranged vertically, and multiple exhaust ports are arranged at intervals on the first pipeline. The exhaust ports are connected to the explosion-proof valve of the cluster-level battery pack. The output end of the first pipeline is connected to the input end of the second pipeline, and the second pipeline is connected to the air.

[0006] Optionally, a foam adhesive is provided between the exhaust port and the cluster-level battery pack.

[0007] Optionally, an expansion plate is provided around the exhaust port, and the expanding foam is disposed on the expansion plate.

[0008] Optionally, the second pipeline is positioned above the first pipeline.

[0009] Optionally, a filter screen is provided at the output end of the second pipeline.

[0010] Optionally, activated carbon is provided at the output end of the second pipeline.

[0011] Secondly, an energy storage container includes the aforementioned cluster-level exhaust pipe, with multiple cluster-level exhaust pipes arranged in a rectangular array, and also includes a container body. Multiple cluster-level battery packs are arranged in a rectangular array within the container body, and each cluster-level battery pack is equipped with a cluster-level exhaust pipe, which is detachably connected to the side wall of the container body.

[0012] Optionally, the enclosure may be equipped with only one exhaust fan and one pressure relief window.

[0013] The beneficial effects of the technical solution provided by this utility model embodiment include at least the following: This utility model provides a cluster-level exhaust pipe and energy storage container. By setting multiple exhaust ports connected to each explosion-proof valve of the cluster-level battery pack, when a battery pack experiences thermal runaway and generates flammable gas, the system maintains positive pressure inside the battery pack and inhibits the entry of external oxygen. The flammable gas in the single battery pack is discharged into the outside air through the exhaust port, the first pipe, and the second pipe. This prevents the flammable gas from accumulating inside the container and prevents secondary thermal runaway between battery packs, thereby avoiding the risk of fire and explosion of other battery packs. It can effectively solve the problem of low safety in the prior art. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the cluster-level exhaust pipe structure provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the second pipeline structure provided in an embodiment of the present utility model; Figure 3 This is a schematic diagram of the foam adhesive structure provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the exhaust port structure provided in an embodiment of the present utility model; Figure 5 This is a schematic diagram of the energy storage container structure provided in an embodiment of the present invention.

[0016] In the diagram: 1-First pipeline; 11-Exhaust port; 12-Expanding foam; 13-Expanding plate; 2-Second pipeline; 21-Filter screen; 3-Box body; 31-Exhaust fan; 32-Pressure relief window. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the cluster-level exhaust pipe structure provided in an embodiment of the present invention; Figure 2This is a schematic diagram of the second pipeline structure provided in an embodiment of the present utility model; Figure 3 This is a schematic diagram of the foam adhesive structure provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the exhaust port structure provided in an embodiment of the present utility model; Figure 5 This is a schematic diagram of the energy storage container structure provided in an embodiment of this utility model. Figures 1 to 5 The diagram shows a cluster-level exhaust pipe for connecting a cluster-level battery pack, comprising: a first pipe 1 and a second pipe 2. The first pipe 1 is arranged vertically, and a plurality of exhaust ports 11 are arranged at intervals on the first pipe 1. The exhaust ports 11 are connected to the explosion-proof valve of the cluster-level battery pack. The output end of the first pipe 1 is connected to the input end of the second pipe 2, and the second pipe 2 is connected to air.

[0019] Exemplary, in embodiments of this utility model, such as Figure 1 As shown, four exhaust ports 11 are provided on the first pipeline 1, and the corresponding cluster-level battery pack consists of four stacked battery packs. A cluster-level exhaust pipeline is added to the energy storage container. Each battery pack in the cluster-level battery pack corresponds to one exhaust port 11. Each exhaust port 11 is connected to the explosion-proof valve of each battery pack. When a single battery pack experiences thermal runaway and generates flammable gas, the system maintains positive pressure inside the battery pack and inhibits the entry of external oxygen. The flammable gas inside the single battery pack is discharged into the outside air through the exhaust port 11, the first pipeline 1, and the second pipeline 2. This prevents the accumulation of flammable gas inside the container and prevents secondary thermal runaway between battery packs, thereby avoiding the risk of fire and explosion of other battery packs and effectively solving the problem of low safety in existing technologies. Furthermore, the cluster-level detector can be installed in the second pipeline 2, effectively reducing the number of cluster rack detectors. Compared to the exhaust system in traditional technologies, which only involves designing ventilators and exhaust fans on the energy storage container to circulate the air inside the container, the exhaust pipe in this embodiment can directly exhaust the combustible gas generated inside the thermally runaway battery pack to the outside of the container, thereby preventing secondary thermal runaway.

[0020] Optionally, a foam 12 is provided between the exhaust port 11 and the cluster-level battery pack.

[0021] Exemplary, in embodiments of this utility model, such as Figure 3 As shown, by providing foam 12 between the exhaust port 11 and the cluster-level battery pack, the sealing between the cluster-level exhaust pipe and the cluster-level battery pack can be improved. In the event of thermal runaway, the gas generated by the battery pack can be discharged through the first pipe 1 and the second pipe 2, thereby further improving the safety of this structure.

[0022] Optionally, an expansion plate 13 is provided around the exhaust port 11, and expanding foam 12 is provided on the expansion plate 13.

[0023] Exemplary, in embodiments of this utility model, such as Figure 2 As shown, by setting the expansion plate 13, the contact area between the first pipeline 1 and the cluster-level battery pack can be increased, thereby allowing the foam adhesive 12 to be applied more stably around the exhaust port 11, thus making the connection between the first pipeline 1 and the cluster-level battery pack tighter and further improving the safety of this structure.

[0024] Optionally, the second pipe 2 is located above the first pipe 1.

[0025] Exemplary, in embodiments of this utility model, such as Figure 1 As shown, due to the lower density of hot air, it will rise naturally. By placing the second pipe 2 above the first pipe 1, the gas in the thermally runaway battery pack can be discharged to the outside of the container more smoothly and quickly, preventing the accumulation of flammable gas and further improving the safety of the structure.

[0026] Optionally, a filter 21 is provided at the output end of the second pipeline 2.

[0027] Exemplary, in embodiments of this utility model, such as Figure 2 As shown, by setting a filter 21 at the output end of the second pipeline 2, external debris can be prevented from entering the interior of the energy storage container through the second pipeline 2 when the energy storage container is working normally. Setting the filter 21 can ensure the normal operation of the energy storage container and improve the operational stability of the energy storage container.

[0028] Optionally, activated carbon is provided at the output end of the second pipeline 2.

[0029] For example, in this embodiment of the present invention, dust or toxic gases are usually generated when the battery pack experiences thermal runaway. By setting activated carbon at the output end of the second pipeline 2, the dust or toxic gases can be absorbed and then discharged during the gas discharge process in the battery pack, thereby improving the environmental friendliness of the energy storage container.

[0030] An energy storage container includes multiple cluster-level exhaust pipes as described above, arranged in a rectangular array, and a container body 3. Multiple cluster-level battery packs are arranged in a rectangular array inside the container body 3. Each cluster-level battery pack is equipped with a cluster-level exhaust pipe, which is detachably connected to the side wall of the container body 3.

[0031] Exemplary, in embodiments of this utility model, such as Figure 5As shown, multiple rows and columns of cluster-level battery packs can be installed inside the container 3 to increase the total power capacity of the energy storage container. Multiple cluster-level exhaust pipes are also provided, corresponding to each cluster-level battery pack, so that the formed energy storage container can form a complete exhaust system. When a single battery pack inside the container 3 experiences thermal runaway, it can be discharged to the outside of the container 3 through the corresponding cluster-level exhaust pipe, thereby reducing the possibility of flammable gases inside the container and ensuring the safety of other battery packs inside the container 3.

[0032] Optionally, the housing 3 may be equipped with only one exhaust fan 31 and one pressure relief window 32.

[0033] Exemplary, in embodiments of this utility model, such as Figure 5 As shown, because multiple cluster-level exhaust pipes are set inside the housing 3, a new exhaust system is formed inside the housing 3. Thus, only one ventilator needs to be set on the front of the housing 3, and one exhaust fan 31 and one pressure relief window 32 need to be set on the back of the housing 3 to circulate the air in the housing 3. Compared with the traditional technology, which requires two ventilators and two exhaust fans 31 to circulate the air inside the housing, the structure in this embodiment can reduce the equipment setup, thereby reducing production costs.

[0034] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an” or “a” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “comprising” or “including” and similar terms mean that the elements or objects preceding “comprising” or “including” encompass the elements or objects listed following “comprising” or “including” and their equivalents, and do not exclude other elements or objects. The terms “connected” or “linked” and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms “upper,” “lower,” “left,” and “right” are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0035] The above description is only an optional embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cluster-level exhaust pipe for connecting a cluster-level battery pack, characterized in that, include: First pipeline (1) and second pipeline (2). The first pipeline (1) is arranged vertically, and multiple exhaust ports (11) are arranged at intervals on the first pipeline (1). The exhaust ports (11) are connected to the explosion-proof valve of the cluster-level battery pack. The output end of the first pipeline (1) is connected to the input end of the second pipeline (2), and the second pipeline (2) is connected to the air.

2. The cluster-level exhaust pipe according to claim 1, characterized in that, Foam (12) is provided between the exhaust port (11) and the cluster-level battery pack.

3. A cluster-level exhaust pipe according to claim 2, characterized in that, The exhaust port (11) is surrounded by an expansion plate (13), and the foam adhesive (12) is disposed on the expansion plate (13).

4. A cluster-level exhaust pipe according to claim 1, characterized in that, The second pipe (2) is located above the first pipe (1).

5. A cluster-level exhaust pipe according to claim 1, characterized in that, A filter (21) is provided at the output end of the second pipeline (2).

6. A cluster-level exhaust pipe according to claim 1, characterized in that, Activated carbon is provided at the output end of the second pipeline (2).

7. An energy storage container, comprising a plurality of cluster-level exhaust pipes as described in any one of claims 1 to 6, wherein the plurality of cluster-level exhaust pipes are arranged in a rectangular array, characterized in that, It also includes a housing (3), in which multiple cluster-level battery packs are arranged in a rectangular array inside the housing (3), and each cluster-level battery pack is equipped with a cluster-level exhaust pipe, which is detachably connected to the side wall of the housing (3).

8. An energy storage container according to claim 7, characterized in that, The enclosure (3) is equipped with only one exhaust fan (31) and one pressure relief window (32).

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