Pressurization and depressurization device and battery resting system

Abstract

The utility model belongs to battery equipment technical field discloses a kind of pressurizing and pressure relief equipment and battery standing system, and pressurizing and pressure relief equipment includes booster device, transition cavity, exhaust pipeline and connecting pipeline. Booster device includes high-pressure cavity and booster piece being communicated in high-pressure cavity, and the gas pressure in high-pressure cavity is first pressure;The gas pressure in transition cavity is second pressure, and the ratio range of second pressure and first pressure is 0.3-0.5;The pressure of one end of exhaust pipeline is atmospheric pressure;One end of connecting pipeline is connected and communicated in standing cavity, and the other end of connecting pipeline selectively communicates high-pressure cavity, transition cavity and exhaust pipeline. The pressurizing and pressure relief equipment and battery standing system provided by the utility model produce smaller noise in working process, and cost is lower.

Description

Technical Field

[0001] This utility model relates to the field of battery equipment technology, and in particular to a pressure charging and depressurization device and a battery static storage system. Background Technology

[0002] After the electrolyte is injected, it cannot quickly penetrate into the battery cell, so the battery needs to be placed in a settling chamber for settling. During the settling process, the settling chamber is first evacuated to remove residual air from the cell interlayer, and then nitrogen is introduced to create positive pressure in the settling chamber, so that the electrolyte can penetrate into the cell under pressure.

[0003] In related technologies, the settling chamber is connected to a connecting pipe, which selectively connects to a pressurization device and a pressure relief pipe. When the connecting pipe is connected to the pressurization device, the pressurization device delivers pressurized gas (e.g., nitrogen) into the settling chamber through the connecting pipe to create positive pressure within the settling chamber. When the gas in the settling chamber needs to be released, the connecting pipe is connected to an exhaust pipe, which releases the high-pressure gas into the air. However, during the pressure relief process, because the gas pressure at the outlet of the exhaust pipe is much greater than atmospheric pressure, there is significant noise during gas discharge. Furthermore, since the gas in the settling chamber is typically nitrogen, completely venting the nitrogen would result in considerable waste, leading to higher battery production costs. Utility Model Content

[0004] The first objective of this application is to provide a pressurization and depressurization device to solve the technical problems of excessive noise and high cost during exhaust in the prior art.

[0005] The second objective of this application is to provide a battery quiescent system with lower noise and lower cost.

[0006] Based on the above concept, the technical solution adopted in this application is:

[0007] Pressure charging and depressurization equipment, including:

[0008] A pressurizing device includes a high-pressure chamber and a pressurizing component connected to the high-pressure chamber, wherein the gas pressure inside the high-pressure chamber is a first pressure;

[0009] A transition cavity, wherein the gas pressure within the transition cavity is a second pressure, and the ratio of the second pressure to the first pressure is in the range of 0.3-0.5;

[0010] An exhaust pipe, wherein the pressure at one end of the exhaust pipe is atmospheric pressure;

[0011] A connecting pipe, one end of which is connected to and communicates with the stationary cavity, and the other end of which is selectively connected to the high-pressure cavity, the transition cavity, and the exhaust pipe.

[0012] A battery settling system includes the pressure charging and depressurization device described above, and the battery settling system also includes a settling chamber, the connecting pipe being connected to and communicating with the settling chamber.

[0013] The beneficial effects that the above technical solution can achieve are:

[0014] During the depressurization process of the settling chamber, the gas with higher pressure in the settling chamber can be discharged to the transition chamber first. Since the transition chamber contains gas, and the gas pressure is greater than atmospheric pressure, the pressure difference between the gas in the settling chamber and the gas in the transition chamber is smaller than the pressure difference between the gas in the settling chamber and atmospheric pressure. The noise generated during the exhaust process is positively correlated with the pressure difference. Thus, the noise caused by the pressure difference during the exhaust process will be significantly reduced. Furthermore, the gas in the settling chamber is not completely discharged into the atmosphere during exhaust, but a portion is discharged into the transition chamber for storage. The gas discharged into the transition chamber can be first filled into the settling chamber when refilling, realizing the reuse of gas, reducing gas waste, and thus reducing production costs. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this application and these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a battery stabilization system provided in an embodiment of this application;

[0017] Figure 2 This is a schematic diagram of a battery quiescent system provided in one embodiment of this application.

[0018] In the picture:

[0019] 1. Pressurization device; 11. High-pressure chamber; 12. Pressurization component; 2. Transition chamber; 3. Exhaust pipe; 4. Connecting pipe; 51. First valve body; 52. Second valve body; 53. Third valve body; 54. Fourth valve body; 55. Fifth valve body; 56. Sixth valve body; 57. Seventh valve body; 6. Vacuum chamber; 71. First pipe section; 72. Second pipe section; 73. Third pipe section; 74. Fourth pipe section; 75. Fifth pipe section; 76. Sixth pipe section; 77. Seventh pipe section; 78. Eighth pipe section; 10. Static chamber. Detailed Implementation

[0020] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of this application will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining this application and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts relevant to this application are shown in the accompanying drawings, not all of them.

[0021] It should be understood that the phrase "an embodiment" or "one embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of this application. Therefore, "in one embodiment" or "in one embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0024] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. In the description of this embodiment, unless otherwise specified, "multiple" specifically refers to two or more.

[0025] In the description of this embodiment, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., are based on the orientation or positional relationships shown in the accompanying drawings and are used only for ease of description and simplification of operation. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0026] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on the other component or it can be located in between the component.

[0027] The technical solution of this application will be further described below with reference to the accompanying drawings and specific embodiments.

[0028] In related technologies, during the single injection and settling cycle of a conventional production line, the positive pressure gas is directly discharged from the settling chamber to the plant pipeline and then discharged outside the plant. On the one hand, this will cause waste of drying gas and increase production costs; on the other hand, the instantaneous pressure relief flow rate is too large and the pressure difference is large, which will cause the noise during pressure relief to be greater than 80dB, which will affect the occupational health of the operators.

[0029] Therefore, this embodiment provides a pressurization and depressurization device for pressurizing the stationary chamber 10 and for depressurizing the stationary chamber 10, which can have low noise, reduce gas waste, and lower production costs.

[0030] For example, such as Figure 1 As shown, the pressurization and depressurization equipment includes a pressurization device 1, a transition chamber 2, an exhaust pipe 3, and a connecting pipe 4. The pressurization device 1 is used to pressurize the gas. The pressurization device 1 includes a high-pressure chamber 11 and a pressurization component 12 connected to the high-pressure chamber 11. The high-pressure chamber 11 stores high-pressure gas, and the gas pressure within the high-pressure chamber 11 is a first pressure. The value of the first pressure can be set according to the pressure requirements within the settling chamber 10; typically, the first pressure is greater than the gas pressure within the settling chamber 10. The pressurization component 12 pressurizes the gas and delivers the pressurized gas to the high-pressure chamber 11. Optionally, the pressurization component 12 can be a pressurization pump or other device capable of gas pressurization; this embodiment does not limit this. Optionally, the input end of the pressurization component 12 can be connected to the air inlet at the factory end of the battery manufacturing plant, and the gas pressure at the factory end air inlet can be 0.7 MPa.

[0031] In this embodiment, the gas in the high-pressure chamber 11 can be nitrogen or other gases, and this embodiment does not limit it.

[0032] In this embodiment, the transition chamber 2 stores gas, and the type of gas in the transition chamber 2 is the same as that in the high-pressure chamber 11. The gas pressure in the transition chamber 2 is a second pressure, wherein the ratio of the second pressure to the first pressure ranges from 0.3 to 0.5. It can be seen that the gas pressure in the transition chamber 2 is less than the gas pressure in the high-pressure chamber 11, and the gas pressure in the transition chamber 2 is 0.3 to 0.5 times the gas pressure in the high-pressure chamber 11.

[0033] The ratio of the second pressure to the first pressure can be any value in the range of 0.3 to 0.5. For example, the ratio of the second pressure to the first pressure can be 0.3, 0.35, 0.4, 0.45, 0.48, 0.5, etc.

[0034] In one embodiment, the required pressure in the settling chamber 10 can be 0.6 MPa per cubic meter. In this case, the first pressure can be 1 MPa per cubic meter and the second pressure can be 0.4 MPa per cubic meter.

[0035] In this embodiment, the pressure at one end of the exhaust pipe 3 is atmospheric pressure. For example, one end of the exhaust pipe 3 can be connected to the outside, allowing the gas inside the exhaust pipe 3 to be discharged to the outside. One end of the connecting pipe 4 is connected to and communicates with the settling chamber 10, so that gas can be input into the settling chamber 10, or gas in the receiving chamber can be transported to the connecting pipe 4. The other end of the connecting pipe 4 is selectively connected to the high-pressure chamber 11, the transition chamber 2, and the exhaust pipe 3; that is, the other end of the connecting pipe 4 can be connected to the high-pressure chamber 11, the transition chamber 2, and the exhaust pipe 3.

[0036] When the connecting pipe 4 is connected to the high-pressure chamber 11 and the stationary chamber 10, the high-pressure gas in the high-pressure chamber 11 can be introduced into the stationary chamber 10, thereby creating a high-pressure environment in the stationary chamber 10. When the connecting pipe 4 is connected to the transition chamber 2 and the stationary chamber 10, the gas in the stationary chamber 10 can enter the transition chamber 2 through the connecting pipe 4, or the gas in the transition chamber 2 can enter the stationary chamber 10 through the connecting pipe 4. When the connecting pipe 4 is connected to the exhaust pipe 3, the gas in the stationary chamber 10 is discharged to the atmosphere through the connecting pipe 4 and the exhaust pipe 3, thus achieving pressure relief.

[0037] When using the pressurization and depressurization device provided in this embodiment for depressurization, such as Figure 1 and Figure 2As shown, the pressure of the gas in the stationary chamber 10 is greater than the pressure of the gas in the transition chamber 2. First, the connecting pipe 4 is controlled to connect the transition chamber 2 and the stationary chamber 10, so that the gas in the stationary chamber 10 is discharged into the transition chamber 2. When the pressure of the gas in the stationary chamber 10 is equal to or slightly different from the pressure of the gas in the transition chamber 2, the passage between the stationary chamber 10 and the transition chamber 2 is cut off, and the connecting pipe 4 is connected to the exhaust pipe 3, so that the gas in the stationary chamber is discharged to the atmosphere through the connecting pipe 4 and the exhaust pipe 3. After the pressure relief is completed, the stationary chamber 10 is at normal pressure.

[0038] It should be noted that the gas pressure inside the transition chamber 2 is not constantly maintained at the second pressure, but rather fluctuates. For example, when the settling chamber 10 is in a vacuum state, and gas is introduced into the settling chamber 10 through the transition chamber 2, the pressure inside the transition chamber 2 will gradually decrease, and at this time, the gas pressure inside the transition chamber 2 will be lower than the second pressure. When the settling chamber 10 is vented and gas is introduced into the transition chamber 2, the pressure inside the transition chamber 2 will return to or be close to the second pressure.

[0039] When using the pressurization and depressurization device provided in this embodiment for pressurization, such as Figure 1 and Figure 2 As shown, the stationary chamber 10 is in a vacuum state. First, the connecting pipe 4 is controlled to connect the transition chamber 2 and the stationary chamber 10, so that the gas with the second pressure in the transition chamber 2 is filled into the stationary chamber. When the pressure of the gas in the stationary chamber 10 is equal to or slightly different from the pressure of the gas in the transition chamber 2, the passage between the stationary chamber 10 and the transition chamber 2 is cut off, and the connecting pipe 4 is connected to the high-pressure chamber 11. At this time, the high-pressure gas in the high-pressure chamber 11 continues to fill the stationary chamber 10 until the pressure in the stationary chamber 10 reaches the required value. At this time, the stationary chamber 10 is in a high-pressure state.

[0040] As can be seen, the pressurization and depressurization device provided in this embodiment, with the transition chamber 2 as the transfer point, realizes the cascade utilization of the positive pressure medium.

[0041] The pressurization and depressurization device provided in this embodiment can first discharge the high-pressure gas in the stationary chamber 10 to the transition chamber 2 during the depressurization process. Since the transition chamber 2 contains gas, and the gas pressure is greater than atmospheric pressure, the pressure difference between the gas in the stationary chamber 10 and the gas in the transition chamber 2 is smaller than the pressure difference between the gas in the stationary chamber 10 and atmospheric pressure. The noise generated during the exhaust process is positively correlated with the pressure difference. Thus, the noise caused by the pressure difference during the exhaust process will be significantly reduced. Furthermore, the gas in the stationary chamber 10 is not completely discharged into the atmosphere during exhaust, but a portion is discharged into the transition chamber 2 for storage. The gas discharged into the transition chamber 2 can be first filled into the stationary chamber 10 when refilling, realizing the reuse of gas, reducing gas waste, and thus reducing production costs.

[0042] It should be noted that the noise generated by the pressure difference during the exhaust process can be aerodynamic noise, and the principle of noise generation can be referred to fluid mechanics, which will not be described in detail in this embodiment.

[0043] In at least one embodiment, the opening and closing of the passage between the transition cavity 2 and the connecting pipe 4 can be achieved by a valve. For example, as Figure 1 As shown, a first valve body 51 is provided in the passage between the transition cavity 2 and the connecting pipe 4. The first valve body 51 has an on state and a closed state to control the opening or closing of the passage between the transition cavity 2 and the connecting pipe 4. Exemplarily, the first valve body 51 can be a solenoid valve or a manual valve, etc., and this embodiment does not limit it.

[0044] In one possible implementation, such as Figure 1 As shown, the transition chamber 2 and the high-pressure chamber 11 are connected by a pipeline, so that the gas in the high-pressure chamber 11 can be filled into the transition chamber 2. When the gas pressure in the transition chamber 2 does not reach the second pressure, the transition chamber 2 can be pressurized so that the pressure in the transition chamber 2 can reach the second pressure.

[0045] To facilitate the control of pipeline opening and closing, such as Figure 1 As shown, a second valve body 52 is provided on the pipeline connecting the transition chamber 2 and the high-pressure chamber 11. The second valve body 52 has an on state and a closed state to control the opening or closing of the passage between the transition chamber 2 and the high-pressure chamber 11. Exemplarily, the second valve body 52 can be a solenoid valve or a manual valve, etc., and this embodiment does not limit it.

[0046] In some alternative embodiments, such as Figure 1As shown, a third valve body 53 is provided in the passage between the high-pressure chamber 11 and the connecting pipe 4. The third valve body 53 has an on state and a closed state to control the opening or closing of the passage between the high-pressure chamber 11 and the connecting pipe 4. Exemplarily, the third valve body 53 can be a solenoid valve, or a manual valve, etc., and this embodiment does not limit it.

[0047] In one embodiment, one or more high-pressure chambers 11 may be provided. When multiple high-pressure chambers 11 are provided, they are connected in series, such that the gas pressure in each high-pressure chamber 11 is a first pressure. A booster 12 is connected to one of the high-pressure chambers 11 and is used to fill that high-pressure chamber 11 with high-pressure gas. When the transition chamber 2 is connected to the high-pressure chamber 11, the transition chamber 2 is connected to one of the high-pressure chambers 11 through a pipeline. In this embodiment... Figure 1 A schematic diagram showing two high-pressure chambers 11.

[0048] In this embodiment, by setting multiple high-pressure chambers 11, the pressure fluctuation during the pressurization process can be reduced, and the inflation efficiency into the stationary chamber 10 can be improved, and the inflation time can be shortened.

[0049] It is understandable that, such as Figure 1 As shown, a fourth valve body 54 is provided in the passage between the exhaust pipe 3 and the connecting pipe 4. The fourth valve body 54 has an on state and a closed state to control the opening or closing of the passage between the exhaust pipe 3 and the connecting pipe 4. Exemplarily, the fourth valve body 54 can be a solenoid valve, or it can be a manual valve, etc., and this embodiment is not limited to this.

[0050] In at least one implementation, such as Figure 1 As shown, the pressurization and depressurization device also includes a vacuum chamber 6. The connecting pipe 4 is selectively connected to the vacuum chamber 6; that is, the connecting pipe 4 is connected to one of the four components: the vacuum chamber 6, the high-pressure chamber 11, the transition chamber 2, and the exhaust pipe 3, while remaining disconnected from the other three. The vacuum chamber 6 is used to evacuate the settling chamber 10, creating a vacuum state within the settling chamber 10 to facilitate the subsequent filling of the settling chamber 10 with gases such as nitrogen.

[0051] In one embodiment, a fifth valve body 55 is provided in the passage between the connecting pipe 4 and the vacuum chamber 6. The fifth valve body 55 has an on state and a closed state to control the opening or closing of the passage between the vacuum chamber 6 and the connecting pipe 4. Exemplarily, the fifth valve body 55 can be a solenoid valve, or a manual valve, etc., and this embodiment is not limited thereto.

[0052] In one optional embodiment, a fifth pipe segment 75 and a sixth pipe segment 76 are sequentially connected between the vacuum chamber 6 and the connecting pipe 4. The end of the fifth pipe segment 75 opposite to the sixth pipe segment 76 is connected to and communicates with the vacuum chamber 6, and the end of the sixth pipe segment 76 opposite to the fifth pipe segment 75 is connected to the connecting pipe 4. The fifth pipe segment 75 and the sixth pipe segment 76 have the same diameter. For example, the diameter of the fifth pipe segment 75 and the sixth pipe segment 76 is 89 mm.

[0053] In one possible implementation, please continue to see Figure 1 A first pipe section 71 and a second pipe section 72 are sequentially connected between the high-pressure chamber 11 and the connecting pipe 4. The end of the first pipe section 71 facing away from the second pipe section 72 is connected to and communicates with the high-pressure chamber 11, and the end of the second pipe section 72 facing away from the first pipe section 71 is connected to and communicates with the connecting pipe 4. In this embodiment, the diameter of the first pipe section 71 is larger than the diameter of the second pipe section 72, and the diameter of the second pipe section 72 is equal to the diameter of the connecting pipe 4. With this configuration, when the high-pressure gas in the first pipe section 71 enters the second pipe section 72, since the diameter of the second pipe section 72 is smaller than that of the first pipe section 71, it is equivalent to pressurizing the gas. This compensates for the pressure loss caused by flow resistance, allowing the pressure of the gas entering the settling chamber 10 to be higher, thereby increasing the speed at which the gas pressure in the settling chamber 10 reaches the required value.

[0054] It should be noted that the diameter in this embodiment can be the outer diameter, the inner diameter, or the equivalent diameter, etc., and this embodiment does not limit it.

[0055] For example, the outer diameter of the first pipe section 71 is 76 mm. The outer diameter of the second pipe section 72 and the connecting pipe 4 is 48 mm.

[0056] In one embodiment, such as Figure 1As shown, a third pipe section 73 and a fourth pipe section 74 are sequentially connected between the transition cavity 2 and the connecting pipe 4. The end of the third pipe section 73 facing away from the fourth pipe section 74 is connected to and communicates with the transition cavity 2, while the end of the fourth pipe section 74 facing away from the third pipe section 73 is connected to and communicates with the connecting pipe 4. The diameter of the third pipe section 73 is equal to the diameter of the fourth pipe section 74, and the diameter of the fourth pipe section 74 is larger than the diameter of the connecting pipe 4. With this configuration, when the gas in the settling chamber 10 is discharged into the transition cavity 2, it first enters the connecting pipe 4, and then enters the fourth pipe section 74 from the connecting pipe 4. Since the diameter of the fourth pipe section 74 is larger than the diameter of the connecting pipe 4, the gas pressure is reduced to a certain extent, resulting in a decrease in the pressure of the gas in the fourth pipe section 74 and minimal noise during the pressure reduction process. When the gas in the fourth pipe section 74 enters the transition cavity 2 through the third pipe section 73, the pressure difference between the gas in the third pipe section 73 and the gas in the transition cavity 2 is small, further reducing the noise generated by the pressure difference. When the gas in the transition cavity 2 enters the connecting pipe 4 through the third pipe section 73 and the fourth pipe section 74, the reduced flow area is equivalent to pressurizing the gas, so that the pressure of the gas in the connecting pipe 4 is greater, thereby improving the efficiency of filling the stationary cavity 10 with gas.

[0057] For example, the outer diameter of the third pipe section 73 is 89 mm. The outer diameter of the connecting pipe 4 is 48 mm.

[0058] In one possible implementation, the diameter of the exhaust pipe 3 is larger than the diameter of the connecting pipe 4. With this configuration, the gas in the connecting pipe 4 enters the exhaust pipe 3, achieving a first depressurization, and the gas in the exhaust pipe 3 is discharged into the atmosphere, achieving a second depressurization, thus achieving step-by-step depressurization and further reducing noise.

[0059] For example, the outer diameter of exhaust pipe 3 is 89 mm. The outer diameter of connecting pipe 4 is 48 mm.

[0060] In one embodiment, such as Figure 1 As shown, the connecting pipe 4 is also connected to a seventh pipe section 77, which is directly connected to the atmosphere. The length of the seventh pipe section 77 is less than the length of the exhaust pipe 3, and it is used to relieve pressure in case of a failure in the exhaust pipe 3. A sixth valve body 56 is provided on the seventh pipe section 77 to control the opening and closing of the first pipe section 71.

[0061] In some optional embodiments, an eighth pipe section 78 is also connected to the passage between the transition cavity 2 and the connecting pipe 4, and a seventh valve body 57 is provided on the eighth pipe section 78. The eighth pipe section 78 can be connected to the air inlet at the plant end of the battery manufacturing plant.

[0062] In this embodiment, the connecting pipe 4 may include multiple branch pipes, which are used to connect with the high-pressure chamber 11, the transition chamber 2, the vacuum chamber 6, the exhaust pipe 3, etc., and the valve body may be correspondingly installed on the branch pipes.

[0063] In one possible implementation, the gas pressure in the high-pressure chamber 11 is 0.7 MPa, and the gas pressure in the transition chamber 2 is 0.3–0.6 MPa. When the settling chamber 10 releases positive pressure, the first valve 51 is opened first to connect the settling chamber 10 with the transition chamber 2. After the gas pressure in the settling chamber 10 decreases to match the gas pressure in the transition chamber 2, the first valve 51 is closed. If other chambers require positive pressure when the settling chamber 10 is depressurized, the drying gas is directly discharged to the chamber requiring positive pressure. After the pressure is balanced, the valve is closed, and the remaining gas is discharged through the exhaust pipe.

[0064] This embodiment also provides a battery settling system, including the aforementioned pressure-relieving device. The battery settling system further includes a settling chamber 10, and a connecting pipe 4 is connected to and communicates with the settling chamber 10.

[0065] The battery quiescent system provided in this embodiment can operate with low noise and has a low cost.

[0066] In at least one embodiment, the settling chamber 10 has a normal pressure state and a high pressure state. The pressure of the gas in the settling chamber 10 under high pressure is greater than a second pressure and less than a first pressure. The pressure of the gas in the settling chamber 10 under high pressure is the required pressure value and can be set as needed.

[0067] It is understandable that the stationary cavity 10 is also in a vacuum state. The stationary cavity 10 is evacuated by the vacuum chamber 6 so that the stationary cavity 10 is in a vacuum state.

[0068] The battery stabilization system provided in this embodiment, by setting up a high-pressure chamber 11 and a transition chamber 2, allows the positive pressure in the stabilization chamber 10 to be first released to the transition chamber 2. The remaining positive pressure gas is then discharged to atmospheric pressure through the connecting pipe 4 and the exhaust pipe 3. When the stabilization chamber 10 is pressurized, the transition chamber 2 preferentially pressurizes the stabilization chamber 10. After pressure balance, the high-pressure chamber 11 is switched to pressurize, allowing the positive pressure gas in the low-pressure tank to be reused. Furthermore, the stabilization chamber 10 achieves staged and phased pressure release, which can reduce the noise of the battery stabilization system. After on-site testing and optimization, the noise level of the battery stabilization system during pressure release is less than or equal to 75 dB, which will not generate noise pollution and ensure the health of operators.

[0069] Note that the above are merely preferred embodiments and the technical principles employed in this application. Those skilled in the art will understand that this application is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of this application. Therefore, although this application has been described in detail through the above embodiments, this application is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of this application, the scope of which is determined by the scope of the appended claims.

Claims

1. A pressurization and depressurization device, characterized in that, include: The booster device (1) includes a high-pressure chamber (11) and a booster component (12) connected to the high-pressure chamber (11), wherein the gas pressure in the high-pressure chamber (11) is a first pressure; The transition cavity (2) has a gas pressure of a second pressure, and the ratio of the second pressure to the first pressure is in the range of 0.3-0.

5. Exhaust pipe (3), the pressure at one end of the exhaust pipe (3) is atmospheric pressure; A connecting pipe (4) is provided, one end of which is connected to and communicates with the stationary cavity (10), and the other end of which is selectively connected to the high-pressure cavity (11), the transition cavity (2), and the exhaust pipe (3).

2. The pressurization and depressurization device according to claim 1, characterized in that, A first valve body (51) is provided in the passage between the transition cavity (2) and the connecting pipe (4).

3. The pressurization and depressurization device according to claim 1, characterized in that, The transition cavity (2) and the high-pressure cavity (11) are connected by a pipeline, and a second valve body (52) is provided on the pipeline connecting the transition cavity (2) and the high-pressure cavity (11).

4. The pressurization and depressurization device according to claim 1, characterized in that, A third valve body (53) is provided in the passage between the high-pressure cavity (11) and the connecting pipeline (4); A fourth valve body (54) is provided in the passage between the exhaust pipe (3) and the connecting pipe (4).

5. The pressurization and depressurization device according to claim 1, characterized in that, The pressurization and depressurization device also includes a vacuum chamber (6), and the connecting pipe (4) is selectively connected to the vacuum chamber (6).

6. The pressurization and depressurization device according to claim 5, characterized in that, A fifth valve body (55) is provided in the passage between the connecting pipe (4) and the vacuum chamber (6).

7. The pressurization and depressurization device according to claim 1, characterized in that, The high-pressure chamber (11) is provided in multiple ways, and the multiple high-pressure chambers (11) are connected in series. The booster (12) is connected to one of the high-pressure chambers (11).

8. The pressurization and depressurization device according to claim 1, characterized in that, A first pipe segment (71) and a second pipe segment (72) are sequentially connected between the high-pressure cavity (11) and the connecting pipe (4). The end of the first pipe segment (71) opposite to the second pipe segment (72) is connected to and communicates with the high-pressure cavity (11), and the end of the second pipe segment (72) opposite to the first pipe segment (71) is connected to and communicates with the connecting pipe (4). The diameter of the first pipe segment (71) is larger than the diameter of the second pipe segment (72), and the diameter of the second pipe segment (72) is equal to the diameter of the connecting pipe (4).

9. The pressurization and depressurization device according to claim 1, characterized in that, A third pipe segment (73) and a fourth pipe segment (74) are sequentially connected between the transition cavity (2) and the connecting pipe (4). The end of the third pipe segment (73) opposite to the fourth pipe segment (74) is connected to and communicates with the transition cavity (2), and the end of the fourth pipe segment (74) opposite to the third pipe segment (73) is connected to and communicates with the connecting pipe (4). The diameter of the third pipe segment (73) is equal to the diameter of the fourth pipe segment (74), and the diameter of the fourth pipe segment (74) is greater than the diameter of the connecting pipe (4).

10. The pressurization and depressurization device according to claim 1, characterized in that, The diameter of the exhaust pipe (3) is larger than the diameter of the connecting pipe (4).

11. A battery static storage system, characterized in that, Including the pressure relief device as described in any one of claims 1-10, the battery settling system further includes a settling chamber (10), and the connecting pipe (4) is connected to and communicates with the settling chamber (10).

12. The battery stabilization system according to claim 11, characterized in that, The settling chamber (10) has a normal pressure state and a high pressure state. When the settling chamber (10) is in a high pressure state, the pressure of the gas inside is greater than the second pressure and less than the first pressure.

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