Gas circulation device, and battery standing apparatus

Abstract

The present disclosure relates to a gas circulation device and a battery standing apparatus. The gas circulation device comprises a first gas conveying assembly, a second gas conveying assembly and a gas intake assembly. A working gas can be filled into a first gas storage tank and a second gas storage tank by means of the gas intake assembly; and a pressure difference is formed between the first gas storage tank and the second gas storage tank. When the first gas conveying assembly is opened, the working gas in the first gas storage tank is conveyed to a standing cavity; and when the first gas conveying assembly is closed and the second gas conveying assembly is opened, the working gas in the second gas storage tank continues to be conveyed to the standing cavity until the pressure in the standing cavity reaches a threshold. After pressure maintaining is completed, the first gas conveying assembly is opened firstly, and in turn the working gas in the standing cavity flows back to the first gas storage tank; and when the pressure in the standing cavity decreases to a set value, an exhaust valve is opened so as to empty the standing cavity. It can be seen that some of the working gas in the standing cavity can be recovered and recycled by means of the first gas storage tank, such that production costs can be effectively reduced.

Description

Gas circulation device and battery stationary equipment

[0001] This disclosure claims priority to a Chinese patent application filed with the Patent Office of China on September 28, 2023, with application number 202322663119.4 and application name “Gas Circulation Device and Battery Stationary Equipment,” the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present disclosure relates to the technical field of lithium battery equipment, and in particular to a gas circulation device and a battery stationary device. Background Art

[0003] After the battery is filled, the electrolyte cannot quickly penetrate into the battery cell, so it needs to be placed in a resting chamber for rest. During the resting process, the resting chamber is generally evacuated to remove the air remaining in the battery cell interlayer, and then filled with nitrogen to create a positive pressure in the resting chamber, allowing the electrolyte to penetrate into the battery cell under pressure.

[0004] Currently, nitrogen is typically directly injected into the resting chamber from a gas source until the pressure inside reaches a threshold. After the chamber maintains pressure for a set period of time, the exhaust valve is opened to release the nitrogen, restoring the chamber to ambient pressure. This results in nitrogen waste, leading to higher battery production costs.

[0005] Summary of the Invention

[0006] Based on this, it is necessary to provide a gas circulation device and battery stationary equipment that can reduce production costs in order to address the above problems.

[0007] A gas circulation device includes a first gas delivery assembly, a second gas delivery assembly, and an air intake assembly; the first gas delivery assembly includes a first gas storage tank, and the second gas delivery assembly includes a second gas storage tank; the air intake assembly is used to connect the first gas storage tank and the second gas storage tank to a gas source, respectively, and the air intake assembly includes a pressure regulating structure, and the pressure regulating structure can adjust the air pressure in the first gas storage tank to be lower than that in the second gas storage tank;

[0008] Among them, the first gas delivery component and the second gas delivery component are used to connect the static cavity and deliver the working gas to the static cavity until the pressure in the static cavity reaches a threshold; and when the static cavity is depressurized, the first gas delivery component is opened, and the working gas in the static cavity will flow back to the first gas storage tank.

[0009] In one embodiment, a plurality of the first gas delivery components are provided, and the gas pressure in the first gas storage tanks of the plurality of the first gas delivery components can be increased or decreased in sequence under the regulation of the pressure regulating structure.

[0010] In one embodiment, the first gas delivery component further includes a first pipeline and a first gas connector connected to the first gas storage tank through the first pipeline, and the second gas delivery component further includes a second pipeline and a second gas connector connected to the second gas storage tank through the second pipeline.

[0011] In one embodiment, a plurality of first gas connectors are provided on the first pipeline, and a plurality of second gas connectors are provided on the second pipeline.

[0012] In one embodiment, the first pipeline includes a plurality of first branches parallel to each other, and a plurality of first gas joints are arranged at intervals on each of the first branches; the second pipeline includes a plurality of second branches parallel to each other, and a plurality of second gas joints are arranged at intervals on each of the second branches.

[0013] In one embodiment, the first gas connector and the second gas connector are configured as quick connectors.

[0014] In one embodiment, the first gas delivery assembly further includes a first filter disposed between the first gas storage tank and the first gas connector, and the second gas delivery assembly further includes a second filter disposed between the second gas storage tank and the second gas connector.

[0015] In one embodiment, the air inlet end of the air inlet assembly is provided with a quick-insert flange and is connected to the air source via the quick-insert flange.

[0016] In one embodiment, the air intake assembly includes a first air intake pipe connected to the first air storage tank and a second air intake pipe connected to the second air storage tank, and the pressure regulating structure is a pressure reducing valve provided on the first air intake pipe.

[0017] In one embodiment, the air intake assembly includes a first air intake pipe connected to the first air storage tank and a second air intake pipe connected to the second air storage tank, and the pressure regulating structure is a boost valve provided on the second air intake pipe.

[0018] A battery resting device, comprising:

[0019] A gas circulation device as described in any one of the above preferred embodiments; and

[0020] A static cavity, wherein the first gas delivery component and the second gas delivery component are both communicated with the static cavity.

[0021] In the above-mentioned gas circulation device and battery resting equipment, the working gas in the gas source can be filled into the first gas tank and the second gas tank through the air intake assembly, and a pressure difference is formed between the first gas tank and the second gas tank. When the first gas transmission assembly is turned on, the working gas in the first gas tank will be transported to the resting cavity; when the first gas transmission assembly is turned off and the second gas transmission assembly is turned on, the working gas in the second gas tank will continue to be transported to the resting cavity until the pressure in the resting cavity reaches the threshold. After the pressure maintenance is completed, the first gas transmission assembly is turned on first, and the working gas in the resting cavity will flow back to the first gas tank; when the pressure in the resting cavity drops to the set value, the exhaust valve is opened to empty the resting cavity. It can be seen that part of the working gas in the resting cavity can be recovered and recycled by the first gas tank, so it can effectively reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0023] FIG1 is a front view of a gas circulation device in a preferred embodiment of the present invention;

[0024] FIG2 is a top view of the gas circulation device shown in FIG1 ;

[0025] FIG3 is a left side view of the gas circulation device shown in FIG1 ;

[0026] FIG4 is a schematic diagram of a battery resting device according to another embodiment of the present invention. DETAILED DESCRIPTION

[0027] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0030] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0031] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0033] 1 and 4 , the present invention provides a gas circulation device 100 and a battery resting device 10 , wherein the battery resting device 10 includes a resting chamber 200 and the gas circulation device 100 .

[0034] The interior of the static cavity 200 is formed with a receiving space, which can form a positive pressure after being filled with working gas. The battery after liquid injection can be placed in the static cavity 200 to maintain pressure so that the electrolyte can fully infiltrate the battery cell. The static cavity 200 is generally provided with a number of air inlet valves, through which the working gas can be filled into the static cavity 200. The working gas is generally nitrogen, and other inert gases that are not prone to oxidation reactions can also be used. In addition, the static cavity 200 is generally provided with an exhaust component, and the exhaust component is provided with an exhaust valve 210. The working gas in the static cavity 200 can be emptied by opening the exhaust valve 210.

[0035] Please refer to FIG. 2 and FIG. 3 . The gas circulation device 100 in the preferred embodiment of the present invention includes a first gas delivery assembly 110 , a second gas delivery assembly 120 and an air intake assembly 130 .

[0036] Both the first gas delivery assembly 110 and the second gas delivery assembly 120 are in communication with the static chamber 200. Specifically, the first gas delivery assembly 110 and the second gas delivery assembly 120 can be connected to the static chamber 200 via an air inlet valve provided on the static chamber, and the air inlet valve can control the opening or closing of the first gas delivery assembly 110 and the second gas delivery assembly 120. Obviously, in other embodiments, control valves can also be provided on the first gas delivery assembly 110 and the second gas delivery assembly 120 to achieve opening and closing control.

[0037] Among them, the first gas delivery component 110 includes a first gas tank 111, and the second gas delivery component 120 includes a second gas tank 121. When the first gas delivery component 110 and the second gas delivery component 120 are turned on, the working gas stored in the first gas tank 111 and the second gas tank 121 can be filled into the static chamber 200, thereby forming a positive pressure in the static chamber 200. The first gas tank 111 and the second gas tank 121 can have the same structure, generally cylindrical and formed of metal, with strong pressure resistance. In order to protect the first gas tank 111 and the second gas tank 121 from external impact and explosion, the gas circulation device 100 is usually also provided with a cover (not shown) covering the outer periphery of the first gas tank 111 and the second gas tank 121. The cover is generally welded from metal materials.

[0038] Specifically in this embodiment, the first gas delivery component 110 also includes a first pipeline 112 and a first gas joint 113 connected to the first gas storage tank 111 through the first pipeline 112, and the second gas delivery component 120 also includes a second pipeline 122 and a second gas joint 123 connected to the second gas storage tank 121 through the second pipeline 122.

[0039] The first and second gas connectors 113, 123 facilitate connection between the first and second gas delivery assemblies 110, 120 and the air inlet valves on the static chamber 200, ensuring reliable connections. Both the first and second pipelines 112, 122 can be flexible hoses or rigid metal tubes, and can be configured to suit the layout of the static chamber 200, facilitating the layout of the battery storage system.

[0040] To facilitate assembly and disassembly of the first and second gas delivery assemblies 110 and 120, in this embodiment, the first and second gas connectors 113 and 123 are configured as quick connectors. Obviously, if disassembly is not a concern, the output ends of the first and second gas delivery assemblies 110 and 120 can also be directly welded to the stationary chamber 200.

[0041] Furthermore, in this embodiment, a plurality of first gas connectors 113 are provided on the first pipeline 112 , and a plurality of second gas connectors 123 are provided on the second pipeline 122 .

[0042] Correspondingly, multiple resting chambers 200 may be provided, and each of the multiple resting chambers 200 can be connected to the first gas delivery assembly 110 and the second gas delivery assembly 120 via multiple first gas connectors 113 and second gas connectors 123, respectively. Thus, positive pressure can be simultaneously generated in the multiple resting chambers 200. Therefore, the aforementioned battery resting process allows for more batteries to be rested at once, thereby improving production efficiency.

[0043] Furthermore, in this embodiment, the first pipeline 112 includes a plurality of first branches (not marked in the figure) parallel to each other, and a plurality of first gas joints 113 are arranged at intervals on each first branch; the second pipeline 122 includes a plurality of second branches (not marked in the figure) parallel to each other, and a plurality of second gas joints 123 are arranged at intervals on each second branch.

[0044] Specifically, the second branch is also parallel to the first branch. Parallel first and second branches can reduce cross-connections and effectively prevent mutual interference. Each second branch is located adjacent to a first branch, and multiple resting cavities 200 can be positioned beneath each first branch. These resting cavities 200 correspond to and communicate with the multiple first gas connectors 113 on the first branch and the multiple second gas connectors 123 on the second branch. As can be seen, the multiple resting cavities 200 are arranged in parallel rows, simplifying the layout of the battery resting device.

[0045] The air intake assembly 130 is used to connect the first air storage tank 111 and the second air storage tank 121 to a gas source, respectively. The working gas stored or generated in the gas source can be injected into the first air storage tank 111 and the second air storage tank 121 through the air intake assembly 130 for buffering. The gas source can be a gas tank for storing working gas or a device for preparing working gas. Specifically in this embodiment, the air intake end of the air intake assembly 130 is provided with a quick-plug flange (not shown) and is connected to the gas source via the quick-plug flange. The output end of the gas source is correspondingly provided with a flange that matches the quick-plug flange, thereby enabling rapid disassembly and assembly of the air intake assembly 130 and the gas source, thereby helping to improve operational efficiency.

[0046] The air intake assembly 130 includes a pressure regulating structure 131 , and the pressure regulating structure 131 can adjust the air pressure in the first air storage tank 111 to be lower than that in the second air storage tank 121 .

[0047] Specifically, in this embodiment, the air intake assembly 130 includes a first air intake pipe (not labeled) communicating with the first air tank 111 and a second air intake pipe (not labeled) communicating with the second air tank 121. The pressure regulating structure 131 is a pressure reducing valve disposed on the first air intake pipe. The air intake assembly 130 inflates the first and second air tanks 111 and 121 through the first and second air intake pipes, respectively. The pressure reducing valve disposed on the first air intake pipe depressurizes the gas entering the first air tank 111, thereby maintaining a lower pressure within the first air tank 111 than within the second air tank 121.

[0048] It should be noted that, in other embodiments, the pressure regulating structure 131 may also be a boost valve provided on the second air intake pipe. The boost valve provided on the second air intake pipe can reduce the pressure of the gas entering the second air tank 121, thereby increasing the pressure in the second air tank 121 to be higher than that in the first air tank 111. Alternatively, the pressure regulating structure 131 may include both the boost valve provided on the second air intake pipe and the pressure reducing valve provided on the first air intake pipe.

[0049] In this embodiment, only one first gas delivery assembly 110 is provided. When a positive pressure is required within the static chamber 200, the first gas delivery assembly 110 and the second gas delivery assembly 120 are initially closed. The working gas in the gas source is first charged into the first gas tank 111 and the second gas tank 121 via the gas inlet assembly 130. A pressure differential is then formed between the first gas tank 111 and the second gas tank 121 under the regulation of the pressure regulating structure 131. Next, the first gas delivery assembly 110 is opened, allowing the working gas in the first gas tank 111 to be transported to the static chamber 200 under the action of the pressure differential until the pressures therebetween reach equilibrium or the pressure differential is less than a preset value. The first gas delivery assembly 110 is closed, and the second gas delivery assembly 120 is opened, allowing the working gas in the second gas tank 121 to be transported to the static chamber 200 under the action of the pressure differential until the pressure within the static chamber 200 reaches a threshold, and the second gas delivery assembly 120 is then closed. It should be noted that when the pressure in the static chamber 200 reaches a threshold, the pressure in the second gas storage tank 121 may be higher than the pressure in the static chamber 200 .

[0050] After the static chamber 200 maintains pressure for a set time, it needs to be depressurized. First, open the first gas delivery component 110. At this time, the pressure in the static chamber 200 is higher than the pressure in the first gas tank 111. Therefore, the working gas in the static chamber 200 will flow back to the first gas tank 111 under the action of the pressure difference until the pressures of the two reach equilibrium or the pressure in the static chamber 200 reaches the set value. It can be seen that part of the working gas in the static chamber 200 can be recovered by the first gas tank 111. Finally, close the first gas delivery component 110 and open the exhaust valve 210 of the static chamber 200 to exhaust the remaining working gas in the static chamber 200.

[0051] When the next batch of batteries is placed in a resting state, the above process is repeated, so the working gas recovered by the first gas storage tank 111 can be injected back into the resting chamber 200 for recycling. It can be seen that the above-mentioned gas circulation device 100 can realize the recovery and recycling of working gas, which can reduce the waste of working gas.

[0052] In addition, in this embodiment, the first gas delivery component 110 further includes a first filter 114 disposed between the first gas storage tank 111 and the first gas connector 113 , and the second gas delivery component 120 further includes a second filter 124 disposed between the second gas storage tank 121 and the second gas connector 123 .

[0053] The first filter 114 and the second filter 124 are capable of filtering the working gas flowing through. Both the first filter 114 and the second filter 124 are capable of filtering the working gas flowing into the static chamber 200, thereby maintaining a clean environment within the static chamber 200. Furthermore, the first filter 114 is capable of filtering the working gas flowing back from the static chamber 200 to the first gas tank 111, thereby preventing contamination of the first gas tank 111 and the working gas stored therein.

[0054] Referring to Figure 4 , in another embodiment, multiple first gas delivery assemblies 110 are provided, and the gas pressure within the first gas storage tanks 111 of the multiple first gas delivery assemblies 110 can be sequentially increased or decreased under the regulation of the pressure regulating structure 131. The multiple first gas delivery assemblies 110 can each be in communication with the static chamber 200, and the structure of the first gas delivery assemblies 110 in this embodiment can be identical to that of the first gas delivery assemblies 110 in the previous embodiment.

[0055] When a positive pressure needs to be formed in the static chamber 200, the second gas delivery assembly 120 and the multiple first gas delivery assemblies 110 are first kept closed, and the working gas in the gas source is first filled into the second gas tank 121 and the multiple first gas tanks 111 through the gas intake assembly 130, and under the regulation of the pressure regulating structure 131, a pressure difference is formed between the first gas tank 111 and the second gas tank 121, and a pressure difference is also formed between the multiple first gas tanks 111. Next, the first gas delivery component 110 with the lowest air pressure in the first gas tank 111 is opened, so that the working gas in the first gas tank 111 is transported to the static chamber 200 under the action of the pressure difference until the pressures of the two are balanced or the pressure difference is less than a preset value; then the first gas delivery component 110 with the second lowest air pressure in the first gas tank 111 is opened, so that the working gas in the first gas tank 111 is transported to the static chamber 200 under the action of the pressure difference until the pressures of the two are balanced or the pressure difference is less than a preset value; and so on, until the first gas delivery component 110 with the highest air pressure in the first gas tank 111 is opened, and the pressures of the first gas tank 111 and the static chamber 200 are balanced or the pressure difference is less than a preset value.

[0056] Next, all first gas delivery components 110 are closed and the second gas delivery component 120 is opened, so that the working gas in the second gas storage tank 121 is delivered to the static chamber 200 under the action of the pressure difference until the pressure in the static chamber 200 reaches a threshold, and the second gas delivery component 120 is closed. At this point, the pressure in the static chamber 200 is higher than the pressure in all first gas storage tanks 11.

[0057] When the static chamber 200 maintains pressure for a set time and needs to be relieved, the first gas delivery assembly 110, which has the highest pressure in the first gas tank 111, is opened first. At this point, the pressure in the static chamber 200 is higher than the pressure in the first gas tank 111. Therefore, due to the pressure difference, the working gas in the static chamber 200 will flow back to the first gas tank 111 until the pressures of the two reach equilibrium or the pressure difference falls below a preset value. Then, the first gas delivery assembly 110 with the second highest air pressure in the first gas tank 111 is opened. Since the pressure in the static chamber 200 is still higher than the pressure in the first gas tank 111, the working gas in the static chamber 200 will flow back to the first gas tank 111 under the action of the pressure difference until the pressures of the two are balanced again or the pressure difference is less than the preset value; and so on, until the first gas delivery assembly 110 with the lowest air pressure in the first gas tank 111 is opened, and the pressures of the first gas tank 111 and the static chamber 200 are balanced or the pressure in the static chamber 200 reaches the set value.

[0058] It can be seen that part of the working gas in the static chamber 200 can be recovered by the multiple first gas storage tanks 111. Finally, the first gas delivery component 110 is closed and the exhaust valve 210 of the static chamber 200 is opened to exhaust the remaining working gas in the static chamber 200.

[0059] When the next batch of batteries is placed in a resting state, the above process is repeated, so the working gas recovered by the first gas tank 111 can be reinjected into the resting chamber 200 for recycling. Furthermore, because the working gas in the resting chamber 200 is recovered in multiple stages by the multiple first gas delivery assemblies 110, the amount of working gas remaining in the resting chamber 200 is extremely small. Therefore, the gas circulation device 100 can further reduce the waste of working gas.

[0060] In the aforementioned gas circulation device 100 and battery resting device, the working gas from the gas source can be charged into the first gas tank 111 and the second gas tank 121 via the gas inlet assembly 130, creating a pressure differential between the first gas tank 111 and the second gas tank 121. When the first gas delivery assembly 110 is turned on, the working gas in the first gas tank 111 is delivered to the resting chamber 200. When the first gas delivery assembly 110 is turned off and the second gas delivery assembly 120 is turned on, the working gas in the second gas tank 121 continues to be delivered to the resting chamber 200 until the pressure in the resting chamber 200 reaches a threshold. After the pressure is maintained, the first gas delivery assembly 110 is turned on first, causing the working gas in the resting chamber 200 to flow back into the first gas tank 111. When the pressure in the resting chamber 200 drops to a set value, the exhaust valve is opened to evacuate the resting chamber 200. It can be seen that part of the working gas in the static chamber 200 can be recovered and recycled by the first gas storage tank 111, thereby effectively reducing production costs.

[0061] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A gas circulation device, characterized in that: The invention comprises a first gas delivery component, a second gas delivery component and an air intake component; the first gas delivery component comprises a first gas storage tank, and the second gas delivery component comprises a second gas storage tank; the air intake component is used to connect the first gas storage tank and the second gas storage tank to a gas source respectively, and the air intake component comprises a pressure regulating structure, and the air pressure in the first gas storage tank can be lower than that in the second gas storage tank under the regulation of the pressure regulating structure; Among them, the first gas delivery component and the second gas delivery component are used to connect the static cavity and deliver the working gas to the static cavity until the pressure in the static cavity reaches a threshold; and when the static cavity is depressurized, the first gas delivery component is opened, and the working gas in the static cavity will flow back to the first gas storage tank.

2. The gas circulation device according to claim 1, characterized in that: There are multiple first gas delivery components, and under the regulation of the pressure regulating structure, the gas pressure in the first gas storage tanks of the multiple first gas delivery components can be increased or decreased in sequence.

3. The gas circulation device according to claim 1, characterized in that: The first gas delivery component also includes a first pipeline and a first gas joint connected to the first gas storage tank through the first pipeline, and the second gas delivery component also includes a second pipeline and a second gas joint connected to the second gas storage tank through the second pipeline.

4. The gas circulation device according to claim 3, characterized in that: The first pipeline is provided with a plurality of the first gas connectors, and the second pipeline is provided with a plurality of the second gas connectors.

5. The gas circulation device according to claim 4, characterized in that: The first pipeline includes a plurality of first branches parallel to each other, and a plurality of first gas connectors are arranged at intervals on each of the first branches. The second pipeline includes a plurality of second branches parallel to each other, and a plurality of second gas connectors are arranged at intervals on each of the second branches.

6. The gas circulation device according to claim 3, characterized in that: The first gas connector and the second gas connector are configured as quick connectors.

7. The gas circulation device according to claim 3, characterized in that: The first gas delivery component further includes a first filter disposed between the first gas storage tank and the first gas connector, and the second gas delivery component further includes a second filter disposed between the second gas storage tank and the second gas connector.

8. The gas circulation device according to claim 1, characterized in that: The air inlet end of the air inlet assembly is provided with a quick-insertion flange, and is connected to an air source via the quick-insertion flange.

9. The gas circulation device according to claim 1, characterized in that: The air intake assembly includes a first air intake pipe connected to the first air storage tank and a second air intake pipe connected to the second air storage tank, and the pressure regulating structure is a pressure reducing valve arranged on the first air intake pipe.

10. The gas circulation device according to claim 1, characterized in that: The air intake assembly includes a first air intake pipe connected to the first air storage tank and a second air intake pipe connected to the second air storage tank, and the pressure regulating structure is a boost valve arranged on the second air intake pipe.

11. A battery resting device, characterized in that: include: A gas circulation device as claimed in any one of claims 1 to 10; and A static cavity, wherein the first gas delivery component and the second gas delivery component are both connected to the static cavity.

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