Purification device, battery and vehicle

Abstract

The utility model discloses a purification device, a battery and a vehicle, and belongs to the technical field of batteries. The purification device comprises a shell used for being connected with a box body of the battery, an inlet of the shell is used for being communicated with an anti-explosion valve of the box body, the shell defines a distribution cavity and an adsorption cavity which are communicated, and the adsorption cavity is used for being filled with an adsorption material to adsorb sulfur dioxide in waste gas released by the battery; the flow guide part is arranged in the distribution cavity and located between the inlet of the shell and the adsorption cavity, a flow guide channel used for guiding waste gas to diffuse to the adsorption material is formed, and the ventilation area of the flow guide channel is gradually increased from the end close to the inlet of the shell to the other end. Through the arrangement of the flow guide piece, the waste gas is uniformly distributed to each adsorption area of the adsorption material, so that the long-term effectiveness and stability of the adsorption material are improved, sparks entrained in the high-temperature waste gas are reduced, the risk of fire or explosion caused by the sparks is reduced, and the safety and reliability of the battery are improved; and the safety and reliability of the vehicle are improved.

Description

Technical Field

[0001] This application belongs to the technical field of batteries, and particularly relates to a purification device, a battery, and a vehicle. Background Art

[0002] With the rapid development of pure electric vehicles, as one of the main components of automobiles, the battery's driving range and safety have received unprecedented attention. People have shown higher requirements and expectations for batteries. All-solid-state batteries use solid materials as electrolytes for the lithium ions to move back and forth to conduct electricity. Traditional lithium batteries use organic solvents as electrolytes, which have safety hazards such as liquid leakage, fire, and explosion. Solid electrolytes have the advantages of no leakage, good thermal stability, non-volatility, and low risk of spontaneous combustion or explosion. All-solid-state batteries have both a greater space for energy density improvement and higher safety, making them a next-generation power battery pack technology with broad application prospects.

[0003] Although the safety of all-solid-state batteries has been significantly improved compared to liquid batteries, which can save components and costs for system safety design to a certain extent, all-solid-state batteries are not equivalent to absolute safety. There is still a certain risk of thermal runaway and thermal diffusion in the battery system. Once out of control, solid-state batteries will emit toxic SO2 gas, causing acute poisoning of passengers and people near the vehicle. In addition to the toxic SO2, the exhaust gas has a high temperature and may even have sparks, which can easily ignite items and cause fire accidents, seriously endangering the lives of passengers and people near the vehicle. Summary of the Utility Model

[0004] This application aims to solve at least one of the technical problems existing in the prior art. For this purpose, this application provides a purification device, a battery, and a vehicle, which realizes that the exhaust gas is evenly distributed to each adsorption area of the adsorption material, improves the long-term effectiveness and stability of the adsorption material, reduces the sparks entrained in the high-temperature exhaust gas, reduces the risk of fire or explosion caused by sparks, and improves the safety and reliability of the battery and the vehicle.

[0005] In a first aspect, this application provides a purification device, including:

[0006] A housing, which is used to be connected to the box body of the battery, and the inlet of the housing is used to communicate with the explosion-proof valve of the box body. The housing defines a connected distribution cavity and an adsorption cavity, and the adsorption cavity is used to fill an adsorption material to adsorb sulfur dioxide in the exhaust gas released by the battery;

[0007] A flow guiding member, which is arranged in the distribution cavity, between the inlet of the housing and the adsorption cavity, and forms a flow guiding channel for guiding the exhaust gas to diffuse to the adsorption material. The ventilation area of the flow guiding channel gradually increases from one end close to the inlet of the housing to the other end.

[0008] According to the purification device of the present application, through the arrangement of the above-mentioned flow guiding members, the exhaust gas is evenly distributed to each adsorption area of the adsorption material, preventing the adsorption material from being saturated or damaged too quickly due to too high local concentration, increasing the contact area between the exhaust gas and the adsorption material, thereby improving the long-term effectiveness and stability of the adsorption material. At the same time, the flow resistance is increased to extend the residence time of the exhaust gas, which helps the exhaust gas and the adsorption material to fully mix and react, thereby optimizing the purification effect of the battery exhaust gas to the greatest extent. And the flow guiding members are used to promote the formation of a swirl when the exhaust gas passes through, minimizing the sparks entrained in the high-temperature exhaust gas as much as possible, reducing the risk of fire or explosion caused by sparks, thereby improving the safety and reliability of the battery, and further improving the safety and reliability of the vehicle.

[0009] According to an embodiment of the present application, a plurality of the flow guiding members are provided, and the plurality of flow guiding members are spaced apart and nested.

[0010] According to an embodiment of the present application, the flow guiding member is of an annular structure, and the areas of the inlets of the plurality of flow guiding members gradually increase from the inside to the outside, and the areas of the outlets of the plurality of flow guiding members gradually increase from the inside to the outside.

[0011] According to an embodiment of the present application, the plurality of flow guiding members are concentrically arranged.

[0012] According to an embodiment of the present application, both the inner surface and the outer surface of the flow guiding member are arc-shaped.

[0013] According to an embodiment of the present application, the purification device further includes:

[0014] A plurality of fitting parts, the plurality of fitting parts are spaced apart along the circumferential direction of the flow guiding member and are connected between the inner side wall of the housing and the flow guiding member.

[0015] According to an embodiment of the present application, the purification device further includes:

[0016] A one-way valve, the one-way valve is arranged in the housing and is arranged near the inlet of the housing, and is configured to conduct unidirectionally from the inlet of the housing to the outlet of the housing.

[0017] According to an embodiment of the present application, the purification device further includes:

[0018] A protective net, the protective net is arranged in the housing and is arranged near the outlet of the housing.

[0019] According to an embodiment of the present application, the housing includes:

[0020] An air inlet section, the inlet of the air inlet section is used to communicate with the explosion-proof valve of the box body;

[0021] A main body section, an outlet of the intake section is communicated with an inlet of the main body section, and the main body section forms the distribution chamber and the adsorption chamber;

[0022] An outlet section, an inlet of the outlet section is communicated with an outlet of the main body section, and an outlet of the outlet section is used for communicating with the external environment.

[0023] According to an embodiment of the present application, an end surface at the outlet of the outlet section is inclined downward from top to bottom in a direction close to the main body section.

[0024] According to an embodiment of the present application, the purification device further includes:

[0025] A seal, the seal is adapted to be disposed between an outer edge of an inlet of the housing and the box body.

[0026] In a second aspect, the present application provides a battery, the battery includes:

[0027] A box body, the box body defines an accommodation space;

[0028] A plurality of battery cells, the plurality of battery cells are stacked in the accommodation space;

[0029] A purification device as described in any one of the above, the purification device is installed outside the box body and is communicated with an explosion-proof valve of the box body.

[0030] According to the battery of the present application, through the arrangement of the above purification device, the exhaust gas is evenly distributed to each adsorption area of the adsorption material, preventing the adsorption material from being saturated or damaged too quickly due to too high local concentration, maximizing the contact area between the exhaust gas and the adsorption material, thereby improving the long-term effectiveness and stability of the adsorption material. At the same time, the flow resistance is increased to extend the residence time of the exhaust gas, which helps the exhaust gas and the adsorption material to fully mix and react, and further optimizes the purification effect of the battery exhaust gas to the greatest extent. And the guide member is used to cause the exhaust gas to form a swirl when passing through, minimizing the sparks entrained in the high-temperature exhaust gas as much as possible, reducing the risk of fire or explosion caused by sparks, thereby improving the safety and reliability of the battery, and further improving the safety and reliability of the vehicle.

[0031] According to an embodiment of the present application, the explosion-proof valves of the plurality of battery cells face the explosion-proof valve of the box body.

[0032] In a third aspect, the present application provides a vehicle, the vehicle includes:

[0033] A battery as described in any one of the above.

[0034] According to the vehicle of the present application, through the above battery arrangement, the exhaust gas is evenly distributed to each adsorption area of the adsorption material, preventing the adsorption material from being saturated too quickly or damaged due to excessive local concentration, maximizing the contact area between the exhaust gas and the adsorption material, thereby enhancing the long-term effectiveness and stability of the adsorption material. At the same time, the flow resistance is increased to extend the residence time of the exhaust gas, which helps the exhaust gas and the adsorption material to fully mix and react, further optimizing the purification effect of the battery exhaust gas to the greatest extent. Additionally, the guide member is used to cause a swirling flow when the exhaust gas passes through, minimizing the sparks entrained in the high-temperature exhaust gas as much as possible, reducing the risk of fire or explosion caused by sparks, thus enhancing the safety and reliability of the battery, and further enhancing the safety and reliability of the vehicle.

[0035] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, where:

[0037] Figure 1 is a schematic structural diagram of a purification device provided by an embodiment of the present application;

[0038] Figure 2 is a side view of a purification device provided by an embodiment of the present application;

[0039] Figure 3 is a top view of a purification device provided by an embodiment of the present application;

[0040] Figure 4 is Figure 3 a cross-sectional view of the A-A section in;

[0041] Figure 5 is Figure 3 a cross-sectional view of the B-B section in;

[0042] Figure 6 is one of the schematic structural diagrams of a battery provided by an embodiment of the present application;

[0043] Figure 7 is another schematic structural diagram of a battery provided by an embodiment of the present application;

[0044] Figure 8 is an exploded view of the structure of a battery provided by an embodiment of the present application.

[0045] Reference Signs:

[0046] Battery 1,

[0047] Purification Device 10,

[0048] The housing 11, the intake section 111, the flanging 1111, the main body section 112, the distribution cavity 1121, the adsorption cavity 1122, the outlet section 113;

[0049] The flow guiding member 12, the flow guiding channel 121, the fitting 13, the protective net 14;

[0050] The box body 20, the tray 21, the explosion-proof valve 211 of the box body, the sealing cover 22;

[0051] The battery cell 30, the explosion-proof valve 31 of the battery cell;

[0052] The adsorption material 2. Specific embodiments

[0053] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation of the present application.

[0054] The present application discloses a purification device 10, which is applied to the battery 1.

[0055] Below, refer to Figures 1 - 8 Describe the purification device 10 according to the embodiments of the present application.

[0056] In some embodiments, as Figures 4 - 5 shown, the purification device 10 includes: a housing 11 and a flow guiding member 12.

[0057] The housing 11 is used to be connected to the box body 20 of the battery 1, and the inlet of the housing 11 is used to communicate with the explosion-proof valve 211 of the box body 20. The housing 11 defines a connected distribution cavity 1121 and adsorption cavity 1122. The adsorption cavity 1122 is used to fill the adsorption material 2 to adsorb sulfur dioxide in the waste gas released by the battery 1. The flow guiding member 12 is arranged in the distribution cavity 1121. The flow guiding member 12 is located between the inlet of the housing 11 and the adsorption cavity 1122. The flow guiding member 12 forms a flow guiding channel 121 for guiding the waste gas to diffuse to the adsorption material 2, and the ventilation area of the flow guiding channel 121 gradually increases from one end close to the inlet of the housing 11 to the other end.

[0058] Exemplarily, as Figure 1 shown, the housing 11 can be generally designed as a cylindrical tube.

[0059] The inlet of the housing 11 can be selectively communicated with the internal space of the box body 20 through the explosion-proof valve 211 of the box body 20. When the gas pressure in the internal space of the box body 20 exceeds the set threshold of the explosion-proof valve 211 of the box body 20, the waste gas can blow open the pressure relief port of the explosion-proof valve of the box body 20 and enter the purification device 10. The outlet of the housing 11 can be communicated with the external environment to facilitate the discharge of the purified gas.

[0060] The material of the housing 11 can include aluminum alloy, stainless steel or other metal materials, which is not limited here.

[0061] For example, in some embodiments, the material of the housing 11 is aluminum alloy.

[0062] The connection method between the housing 11 and the box body 20 of the battery 1 can include but is not limited to bolt connection, riveting and snap connection, etc., which is not limited here.

[0063] For example, in some embodiments, as Figure 1 and Figure 8 shown, the connection method between the housing 11 and the box body 20 of the battery 1 is bolt connection.

[0064] The adsorption material 2 can include but is not limited to activated carbon or metal organic framework materials, etc., which is not limited here.

[0065] Taking the adsorption material 2 as activated carbon as an example, when the activated carbon contacts the waste gas released by the battery 1, a strong interaction force is generated, and sulfur dioxide in the waste gas is thus intercepted, so that the waste gas is purified.

[0066] It should be noted that the purification of the waste gas is a physical process, and the properties of the activated carbon itself do not change. However, when the activated carbon adsorbs a sufficient amount of sulfur dioxide, it will reach saturation, thus reducing the adsorption performance or even completely failing. At this time, the adsorbed saturated activated carbon can be desorbed or replaced. Desorption regeneration can consider heating regeneration or microwave regeneration and other schemes. And in order to reduce the maintenance cost and use cost, the desorption regeneration process can be directly completed in the purification device 10 without transferring the location, so as to realize the in-situ regeneration and recycling of the adsorption material 2.

[0067] Exemplarily, as Figure 4 shown, the flow guide member 12 can be designed in a flared shape.

[0068] The material of the flow guide member 12 can include aluminum alloy, stainless steel or other metal materials, which is not limited here.

[0069] For example, in some embodiments, the material of the flow guide member 12 is stainless steel.

[0070] It can be understood that considering that the pressure inside the box body 20 and the pressure inside the housing 11 should not be too high, the speed of the waste gas entering the purification device 10 and the speed of leaving the purification device 10 need to be relatively fast. Therefore, during the design, the diameters of the inlet and outlet of the purification device 10 are usually designed to be relatively small to accelerate the intake rate and exhaust rate. However, there will be a problem of uneven gas flow in the waste gas entering the adsorption chamber 1122. Specifically, the amount of waste gas contacted by the adsorption material 2 at the middle position is relatively large, while the amount of waste gas contacted by the adsorption material 2 at the edge position is relatively small, resulting in different saturation times at different positions of the adsorption material 2, and the adsorption material 2 cannot be fully utilized.

[0071] As Figures 4 - 7 shown, when the flow guide member 12 is provided, after the waste gas reaches the distribution chamber 1121, it enters the flow guide channel 121 of the flow guide member 12. Since the ventilation area of the flow guide channel 121 gradually increases from one end close to the inlet of the housing 11 to the other end, under the guiding action of the flow guide channel 121, the waste gas originally gathered in the middle can diffuse to the edge, so that the waste gas can be evenly distributed to each position of the adsorption material 2. At the same time, the flow guide member 12 itself can also play a role in increasing the gas resistance, thereby prolonging the contact time between the waste gas and the adsorption material 2, and further contributing to the full mixing and reaction of the waste gas and the adsorption material 2 in the housing 11. And under the action of the flow guide member 12, the high-temperature waste gas with entrained sparks can form a swirl when passing through the distribution chamber 1121. The swirl collides with the inner wall of the housing 11 and the flow guide member 12, causing the sparks in the swirl to lose kinetic energy and be intercepted.

[0072] The purification device 10 provided by the embodiment of the present application, through the above-mentioned setting of the flow guide member 12, realizes that the waste gas is evenly distributed to each adsorption area of the adsorption material 2, prevents the adsorption material 2 from being saturated too quickly or damaged due to too high local concentration, increases the contact area between the waste gas and the adsorption material 2, thereby improving the long-term effectiveness and stability of the adsorption material 2. At the same time, it increases the flow resistance to extend the residence time of the waste gas, which helps the waste gas and the adsorption material 2 to fully mix and react, and further optimizes the purification effect of the waste gas of the battery 1 to the greatest extent. And by using the flow guide member 12 to promote the formation of a swirl when the waste gas passes through, the sparks entrained in the high-temperature waste gas are reduced as much as possible, and the risk of fire or explosion caused by the sparks is reduced, thereby improving the safety and reliability of the battery 1, and further improving the safety and reliability of the vehicle.

[0073] In some embodiments, as Figures 4 - 5 shown, a plurality of flow guide members 12 are provided, and the plurality of flow guide members 12 are spaced apart and nested.

[0074] Among them, the plurality means two or more.

[0075] For example, in some embodiments, as Figures 4 - 5As shown, two flow guiding members 12 are provided, and the two flow guiding members 12 are spaced apart and nested.

[0076] For example, in some embodiments, four flow guiding members 12 are provided, and the four flow guiding members 12 are spaced apart and nested.

[0077] Among the multiple flow guiding members 12, the distance between each adjacent two flow guiding members 12 may be the same or may not be the same.

[0078] Taking the example of three flow guiding members 12 being spaced apart and nested, the distance between the innermost flow guiding member 12 and the middle-layer flow guiding member 12, and the distance between the outermost flow guiding member 12 and the middle-layer flow guiding member 12 may be the same or may not be the same.

[0079] In this embodiment, as Figures 4 - 5 shown, the multiple flow guiding members 12 may be spaced apart and nested from the inside out. Between adjacent two flow guiding members 12, the size of the outer-layer flow guiding member 12 may be larger than that of the inner-layer flow guiding member 12. After the waste gas reaches the distribution chamber 1121 from the inlet of the purification device 10, it can be diffused to between the outermost flow guiding member 12 and the housing 11 and into the flow guiding channels 121 of the multiple flow guiding members 12 respectively.

[0080] In the purification device 10 provided by the embodiment of the present application, through the above structural design of the multiple flow guiding members 12 being spaced apart and nested, the distribution path of the waste gas is further refined, so that before the waste gas enters the adsorption chamber 1122, it undergoes multiple dispersions and recombinations, which helps the waste gas to be evenly distributed in the distribution chamber 1121 and the adsorption chamber 1122, reducing the phenomenon of excessive or too low local concentration, thereby improving the contact efficiency between the waste gas and the adsorption material 2. At the same time, it can guide the waste gas to form a more complex flow pattern in the housing 11, increasing the relative movement speed and contact area between the waste gas and the adsorption material 2, thereby improving the purification efficiency. And under the action of the multiple flow guiding members 12, when the high-temperature waste gas with entrained sparks passes through the distribution chamber 1121, it is easier to form swirls. These swirls not only help to intercept the sparks, but also form a stronger turbulent effect in the housing 11, further promoting the mixing and reaction between the waste gas and the adsorption material 2. In addition, the design of the multiple flow guiding members 12 enables the purification device 10 to have stronger adjustment ability and adaptability in the face of changes in the waste gas flow rate and composition under different working conditions. By adjusting the number, shape, and layout of the flow guiding members 12, it can flexibly meet various waste gas treatment requirements and maintain the efficient and stable operation of the purification device 10.

[0081] In some embodiments, as Figures 4 - 5 shown, the flow guiding member 12 is of an annular structure, the area of the inlets of the multiple flow guiding members 12 gradually increases from the inside out, and the area of the outlets of the multiple flow guiding members 12 gradually increases from the inside out.

[0082] Among them, the shape of the flow guide member 12 can be generally circular ring-shaped, square ring-shaped, triangular ring-shaped, etc., and there is no limitation here.

[0083] For example, in some embodiments, as Figures 4 - 5 shown, the shape of the flow guide member 12 can be generally circular ring-shaped.

[0084] In this embodiment, as Figures 4 - 5 shown, the inlets of the plurality of flow guide members 12 can be flush, and the outlets of the plurality of flow guide members 12 can be flush. Based on the fact that the flow guide member 12 is an annular structure, the sides of the flow guide channel 121 are all closed, and only one end facing away from the adsorption material 2 and one end close to the adsorption material 2 are left open to form the inlet and outlet of the flow guide member 12 respectively. Since the area of the inlets of the plurality of flow guide members 12 gradually increases from the inside to the outside and the area of the outlets of the plurality of flow guide members 12 gradually increases from the inside to the outside, the gas flow rate at the inlets of the plurality of flow guide members 12 gradually decreases from the inside to the outside. Based on the fact that the gas flow rate multiplied by the ventilation area is equal to the ventilation flow rate, in this way, the ventilation flow rates at the inlets of the plurality of flow guide members 12 tend to be equal, and the ventilation flow rates at the outlets of the plurality of flow guide members 12 also tend to be equal.

[0085] The purification device 10 provided by the embodiment of the present application, through the annular design of the flow guide member 12 and the design of the inlet and outlet dimensions of the plurality of flow guide members 12, makes the ventilation flow rates at the inlets of the plurality of flow guide members 12 more uniform, and the ventilation flow rates at the outlets of the plurality of flow guide members 12 are also more uniform, further improving the uniformity of waste gas distribution, maximizing the long-term effectiveness and stability of the adsorption material 2, and at the same time making the pressure distribution in each part of the housing 11 more uniform, which helps to alleviate the problems of damage or performance degradation caused by excessive pressure difference, and improves the stability and reliability of the purification device 10.

[0086] In some embodiments, as Figures 4 - 5 shown, the plurality of flow guide members 12 are concentrically arranged.

[0087] In other words, as Figures 4 - 5 shown, the center lines of the plurality of flow guide members 12 coincide.

[0088] It can be understood that the concentric arrangement of multiple guide members 12 allows the exhaust gas to flow along a common central axis in the distribution chamber 1121, preventing the exhaust gas from being biased during the distribution process, and allowing the exhaust gas to be evenly distributed to each guide member 12. Since the exhaust gas is evenly distributed, the amount of exhaust gas treated by each guide member 12 is relatively balanced, which helps to fully contact and react the exhaust gas with the adsorption material 2 in the subsequent purification steps; secondly, the entire purification device 10 presents a high degree of structural symmetry, which helps to reduce stress concentration inside the purification device 10 and improve the overall stability and reliability of the purification device 10; and can guide the exhaust gas to form a complex flow path in the shell 11. This flow pattern helps to increase the contact time and contact area between the exhaust gas and the adsorption material 2, thereby improving the mixing effect and purification efficiency.

[0089] The purification device 10 provided in the embodiment of the present application prevents the exhaust gas from having a deviation flow during the distribution process through the structural design of the above-mentioned multiple concentrically arranged guide members 12, so that the exhaust gas can be evenly distributed to each guide member 12, thereby facilitating sufficient contact and reaction between the exhaust gas and the adsorption material 2 in the subsequent purification step, and at the same time making the entire purification device 10 present a high degree of structural symmetry, thereby helping to reduce stress concentration inside the purification device 10, thereby improving the overall stability and reliability of the purification device 10; and can guide the exhaust gas to form a complex flow path in the shell 11, which helps to increase the contact time and contact area between the exhaust gas and the adsorption material 2, thereby improving the mixing effect and purification efficiency.

[0090] In some embodiments, Figure 4 As shown, the inner surface and the outer surface of the guide member 12 are both arc-shaped.

[0091] In this embodiment, if Figure 4 As shown, the inner surface and the outer surface of the guide member 12 are both designed to be smooth arc surfaces, and the centers of curvature of both surfaces can be located on the side of the guide member 12 away from the guide channel 121 , that is, located outside the guide member 12 .

[0092] It can be understood that the arc-shaped surface can distribute the flow velocity of the fluid more evenly, avoid local flow velocity that is too high or too low, thereby reducing the impact and wear of the exhaust gas on the guide member 12, and improving the service life of the purification device 10; and the arc-shaped design can disperse the impact stress of the exhaust gas on the guide member 12, reduce stress concentration, and thus improve the structural stability and durability of the guide member 12; at the same time, the arc-shaped surface can more effectively resist fatigue damage and extend the service life of the guide member 12; in addition, the arc-shaped surface is not easy to accumulate dirt and impurities, which is convenient for cleaning and maintenance.

[0093] The purification device 10 provided by the embodiment of the present application, through the design that both the inner surface and the outer surface of the guiding member 12 are arc-shaped, can distribute the flow velocity of the fluid more evenly, thereby reducing the impact and wear of the waste gas on the guiding member 12, improving the service life of the purification device 10, and at the same time dispersing the impact stress of the waste gas on the guiding member 12, thereby improving the structural stability and durability of the guiding member 12, and being able to more effectively resist fatigue failure and extend the service life of the guiding member 12. In addition, it makes the inner surface and the outer surface of the guiding member 12 not easily accumulate dirt and impurities, preventing the guiding channel 121 from being blocked and causing the guiding member 12 to fail.

[0094] In some embodiments, as Figures 4 - 5 shown, the purification device 10 further includes: a plurality of fitting members 13.

[0095] As Figures 4 - 5 shown, the plurality of fitting members 13 are spaced apart circumferentially along the guiding member 12 and are connected between the inner side wall of the housing 11 and the guiding member 12.

[0096] Exemplarily, as Figures 4 - 5 shown, the fitting member 13 can be designed as a mounting rod structure. Specifically, the shape of the fitting member 13 can be generally a hollow square tube shape.

[0097] Among them, the plurality means two or more. For example, in some embodiments, four fitting members 13 are spaced apart circumferentially along the guiding member 12.

[0098] Each fitting member 13 can penetrate through a plurality of guiding members 12, and each fitting member 13 does not intersect with each other; or each fitting member 13 can penetrate through the outer guiding member 12 and be connected to the outer wall surface of the innermost guiding member 12. Among the plurality of fitting members 13, the distance between each adjacent two fitting members 13 can be equal or not necessarily equal. The fitting member 13 can also be designed into a specific shape and arrangement to better guide the waste gas to flow between the guiding member 12 and the housing 11, which helps to reduce the resistance during the fluid flow and improve the flow efficiency.

[0099] Among them, the connection manner between the fitting member 13 and the guiding member 12 can include but is not limited to bolt connection, riveting, and welding, etc., and no limitation is made here.

[0100] For example, in some embodiments, the connection manner between the fitting member 13 and the guiding member 12 is welding.

[0101] The connection manner between the fitting member 13 and the housing 11 can include but is not limited to bolt connection, riveting, and welding, etc., and no limitation is made here.

[0102] For example, in some embodiments, the connection manner between the fitting member 13 and the housing 11 is welding.

[0103] The purification device 10 provided by the embodiment of the present application realizes the installation of the flow guide member 12 in the housing 11 through the above-mentioned multiple fitting members 13. As a support structure between the flow guide member 12 and the housing 11, the fitting member 13 can significantly enhance the structural stability of the entire purification device 10. At the same time, the fitting member 13 disperses the fluid impact force that the flow guide member 12 may receive, preventing the deformation or damage of the flow guide member 12 due to uneven stress, and maintaining the stable operation of the purification device 10.

[0104] In some embodiments, the purification device 10 further includes: a check valve.

[0105] The check valve is arranged in the housing 11 and is close to the inlet of the housing 11, and is configured to conduct unidirectionally from the inlet of the housing 11 to the outlet of the housing 11.

[0106] In actual implementation, a sulfur dioxide detection sensor for detecting the sulfur dioxide concentration can be arranged in the battery 1. When the sulfur dioxide concentration in the battery 1 reaches the set value, the check valve is controlled to open, and the waste gas flows from the box body 20 to the inside of the housing 11. Under normal circumstances, the check valve can be in a normally closed state.

[0107] The purification device 10 provided by the embodiment of the present application, through the above-mentioned check valve setting, enables the waste gas to only flow from the inlet of the housing 11 to the outlet, preventing the reverse flow or leakage of the waste gas, thereby maintaining the unidirectionality and high efficiency of the purification process. And it can be used in conjunction with the sulfur dioxide detection sensor. When the sulfur dioxide concentration reaches the set value, the check valve is automatically opened, realizing precise control of the waste gas flow, improving the response speed and accuracy of the purification device 10, and at the same time preventing impurities in the external environment from damaging the explosion-proof valve 211 of the box body 20 by hitting the purification device 10, thereby enhancing the safety and reliability of the battery 1.

[0108] In some embodiments, as Figure 1 and Figure 4 shown, the purification device 10 further includes: a protective net 14.

[0109] As Figure 1 and Figure 4 shown, the protective net 14 is arranged in the housing 11 and is close to the outlet of the housing 11.

[0110] Among them, the protective net 14 can be woven from high-strength wire materials. Specifically, the high-strength wire materials can include but are not limited to stainless steel wires or corrosion-resistant alloy wires, etc., and are not limited here.

[0111] For example, in some embodiments, the protective net 14 can be woven from stainless steel wires.

[0112] The connection method between the protective net 14 and the housing 11 may include, but is not limited to, bolt connection, snap connection, rivet connection, etc., and is not limited here.

[0113] For example, in some embodiments, the connection method between the protective net 14 and the housing 11 is bolt connection.

[0114] According to actual needs, the mesh size can be adjusted. If smaller particulate matter needs to be intercepted, the mesh size can be reduced; conversely, if a larger ventilation volume is pursued, the mesh size can be appropriately increased.

[0115] Exemplarily, the mesh size of the protective net 14 is 5mm×5mm.

[0116] It should be noted that the protective net 14 can be provided in multiple layers, and the material, mesh size, and fixing method of each layer of the protective net 14 can be different. This design can provide additional filtering and protection effects, and at the same time extend the service life of the entire protection system.

[0117] The purification device 10 provided by the embodiment of the present application, through the above setting of the protective net 14, prevents impurities such as sand, stones, and large particulate matter in the external environment from flowing back into the purification device 10 through the outlet of the housing 11 and causing damage, maintains the normal operation and purification efficiency of the purification device 10, reduces the risk of failure or premature scrapping of the purification device 10, and thus extends the service life of the purification device 10.

[0118] In some embodiments, as Figure 1 shown, the housing 11 includes: an intake section 111, a main body section 112, and an outlet section 113.

[0119] The inlet of the intake section 111 is used to communicate with the explosion-proof valve 211 of the box body 20; the outlet of the intake section 111 is communicated with the inlet of the main body section 112, and the main body section 112 forms a distribution chamber 1121 and the adsorption chamber 1122; the inlet of the outlet section 113 is communicated with the outlet of the main body section 112, and the outlet of the outlet section 113 is used to communicate with the external environment.

[0120] It should be noted that based on the above, the one-way valve is arranged in the housing 11 and close to the inlet of the housing 11, and the one-way valve can be arranged in the intake section 111; based on the above, the protective net 14 is arranged in the housing 11 and close to the outlet of the housing 11, and the protective net 14 can be arranged in the outlet section 113, or can be arranged in the main body section 112, or can also be arranged at the connection between the main body section 112 and the outlet section 113.

[0121] In this embodiment, as Figure 1 and Figures 7 - 8As shown, the intake section 111, the main body section 112, and the outlet section 113 can be integrally formed. At the inlet of the intake section 111, there can be a flanging 1111 that turns outward. The outer contour of the flanging 1111 can be circular, square, diamond, etc. The flanging 1111 can be attached to the outer wall surface of the box body 20. Oppositely arranged flange holes can be provided on both the flanging 1111 and the box body 20, and the flange holes on the flanging 1111 and the box body 20 are penetrated through by means of threaded connection or rivet connection, etc., so as to realize the assembly and fixation between the purification device 10 and the box body 20.

[0122] In the purification device 10 provided by the embodiment of the present application, through the settings of the above-mentioned intake section 111, main body section 112, and outlet section 113, a clear and efficient waste gas flow path is formed, enabling the waste gas to enter, pass through, and be processed orderly, and finally discharged, reducing the chaotic flow of the fluid inside the purification device 10. At the same time, the overall structure of the housing 11 is simple, and the functional partitions of each part are clear, realizing the overall miniaturization and lightweight design of the purification device 10.

[0123] In some embodiments, as Figure 2 shown, the end surface at the outlet of the outlet section 113 is inclined downward from top to bottom towards the direction close to the main body section 112.

[0124] It can be understood that since the outlet shape of the outlet section 113 is set as an inclined opening, that is, longer at the top and shorter at the bottom, when the gas leaves the purification device 10, it can flow more smoothly into the external environment, reducing the exhaust resistance, thereby preventing the waste gas from accumulating in the purification device 10 for a long time and causing excessive internal pressure, and further optimizing the safety protection performance of the purification device 10; and in outdoor or humid environments, the inclined opening design can effectively prevent rainwater or other liquids from flowing back into the interior of the purification device 10 from the outlet of the outlet section 113. Due to the inclined end surface of the outlet, rainwater and other liquids are more likely to slide down along the inclined surface instead of accumulating at the outlet, thereby protecting the internal components of the purification device 10 from damage caused by moisture; in addition, compared with complex shapes, the inclined opening design has a simpler and more direct manufacturing process, which helps to reduce production costs, improve production efficiency, and reduce errors and defects caused by complex operations during the manufacturing process.

[0125] In the purification device 10 provided by the embodiment of the present application, through the structural design that the end surface at the outlet of the above-mentioned outlet section 113 is inclined downward from top to bottom towards the direction close to the main body section 112, the exhaust resistance is reduced, preventing the waste gas from accumulating in the purification device 10 for a long time and causing excessive internal pressure, optimizing the safety protection performance of the purification device 10, and being able to effectively prevent rainwater or other liquids from flowing back into the interior of the purification device 10 from the outlet of the outlet section 113, thereby protecting the internal components of the purification device 10 from damage caused by moisture, while simplifying the manufacturing process, reducing production costs, and improving production efficiency.

[0126] In some embodiments, the purification device 10 further includes: a seal.

[0127] The seal is adapted to be disposed between the outer edge of the inlet of the housing 11 and the box body 20.

[0128] The seal may include, but is not limited to, a sealing gasket, a sealing film, or a sealing ring, etc., which is not limited herein.

[0129] For example, in some embodiments, the seal is a sealing gasket.

[0130] In this embodiment, based on the fact that the inlet of the above-mentioned intake section 111 may have a flanging 1111 that turns outwards, the seal can be pressed between the wall surface of the flanging 1111 facing away from the main body section 112 and the outer wall surface of the box body 20. After being fixedly connected between the flanging 1111 and the box body 20, the specific pressure on the surface of the seal reaches a certain value and then deforms, filling the unevenness on the sealing surface, so that there is no leakage between the wall surface of the flanging 1111 facing away from the main body section 112 and the outer wall surface of the box body 20.

[0131] The purification device 10 provided by the embodiments of the present application realizes the sealing between the inlet section and the box body 20 through the above-mentioned seal, preventing the waste gas during the purification process from leaking to the external environment from the connection, and as much as possible promoting all waste gas to be processed through the purification device 10, rather than being directly discharged through the unsealed gap. The purification device 10 can give full play to its purification ability, improve the purification efficiency, and at the same time prevent impurities such as dust and moisture in the external environment from entering the interior of the purification device 10 through the unsealed gap and damaging the internal components, which helps to extend the service life of the purification device 10.

[0132] The present application also discloses a battery 1.

[0133] In some embodiments, as Figures 6 - 8 shown, the battery 1 includes: a box body 20, a purification device 10 as any one of the above, and a plurality of battery cells 30.

[0134] The box body 20 defines an accommodation space; a plurality of battery cells 30 are stacked in the accommodation space; the purification device 10 is installed outside the box body 20, and the purification device 10 is communicated with the explosion-proof valve 211 of the box body 20.

[0135] Exemplarily, the battery 1 is a solid-state battery. Specifically, the battery cell 30 includes a housing, an electrode assembly, and a solid electrolyte. The housing is used to accommodate the electrode assembly and the solid electrolyte. The electrode assembly is composed of a positive electrode plate and a negative electrode plate. The battery cell 30 mainly operates by the movement of metal ions between the positive electrode plate and the negative electrode plate.

[0136] As Figures 6 - 8As shown, the box body 20 includes a tray 21 and a sealing cover 22 that cover each other. The tray 21 can be a hollow structure with one end open, and the sealing cover 22 can be a plate-like structure. The sealing cover 22 covers the open side of the tray 21 so that the tray 21 and the sealing cover 22 jointly define an accommodation space, and the explosion-proof valve 211 of the box body 20 is provided on the tray 21.

[0137] For the battery 1 provided in the embodiment of the present application, through the arrangement of the above purification device 10, the exhaust gas is evenly distributed to each adsorption area of the adsorption material 2, preventing the adsorption material 2 from being saturated or damaged too quickly due to too high local concentration, maximizing the contact area between the exhaust gas and the adsorption material 2, thereby improving the long-term effectiveness and stability of the adsorption material 2. At the same time, the flow resistance is increased to extend the residence time of the exhaust gas, which helps the exhaust gas and the adsorption material 2 to fully mix and react, and further optimizes the purification effect of the exhaust gas of the battery 1 to the greatest extent. And the guide member 12 is used to cause a swirl to form when the exhaust gas passes through, minimizing the sparks entrained in the high-temperature exhaust gas as much as possible, reducing the risk of fire or explosion caused by sparks, thereby improving the safety and reliability of the battery 1, and further improving the safety and reliability of the vehicle.

[0138] In some embodiments, as Figure 8 shown, the explosion-proof valves 31 of multiple battery cells 30 face the explosion-proof valve 211 of the box body 20.

[0139] In this embodiment, the explosion-proof valves 31 of multiple battery cells 30 and the explosion-proof valve 211 of the box body 20 are arranged in the same direction and both face the rear of the vehicle. Similarly, the purification device 10 is connected to the rear side surface of the tray 21 to alleviate the negative impact of the oncoming wind and the side wind on the exhaust gas passage smoothness of the purification device 10.

[0140] In some other embodiments, the explosion-proof valves 31 of multiple battery cells 30 and the explosion-proof valve 211 of the box body 20 can also be arranged in different directions.

[0141] For the battery 1 provided in the embodiment of the present application, through the above structural design that the explosion-proof valves 31 of multiple battery cells 30 face the explosion-proof valve 211 of the box body 20, the exhaust gas released by the explosion-proof valves 31 of multiple battery cells 30 can be more quickly diffused to the explosion-proof valve 211 of the box body 20 in an emergency, accelerating the exhaust gas discharge rate, reducing the air pressure in the box body 20 in a short time, thereby improving the safety of the battery 1.

[0142] The present application also discloses a vehicle.

[0143] In some embodiments, the vehicle includes: the battery 1 as described above.

[0144] The vehicle may be a fuel vehicle, a gas vehicle or a new energy vehicle, etc. For example, a battery 1 may be provided at the bottom, front or rear of the vehicle, and the battery 1 may be used to power the vehicle.

[0145] The vehicle provided in the embodiment of the present application realizes that the exhaust gas is evenly distributed to each adsorption area of ​​the adsorption material 2 through the arrangement of the above-mentioned battery 1, thereby preventing the adsorption material 2 from being saturated or damaged too quickly due to excessive local concentration, and maximizing the contact area between the exhaust gas and the adsorption material 2, thereby improving the long-term effectiveness and stability of the adsorption material 2. At the same time, the flow resistance is increased to extend the residence time of the exhaust gas, which helps the exhaust gas and the adsorption material 2 to fully mix and react, thereby maximizing the purification effect of the exhaust gas of the battery 1, and utilizing the guide member 12 to cause the exhaust gas to form a vortex when passing through, thereby minimizing sparks entrained in the high-temperature exhaust gas as much as possible, and reducing the risk of fire or explosion caused by sparks, thereby improving the safety and reliability of the battery 1, and then improving the safety and reliability of the vehicle.

[0146] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0147] In the description of the present application, 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 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 application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0148] In the description of this application, "first feature" or "second feature" may include one or more of the features.

[0149] In the description of the present application, “plurality” means two or more.

[0150] In the description of the present application, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include indirect contact between the first and second features through additional features therebetween.

[0151] In the description of the present application, the first feature being "above", "over" or "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature.

[0152] In the description of this specification, the description of reference terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0153] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A purification device, applied to a battery, characterized in that, Comprising: A housing for connecting to the box of the battery, and an inlet of the housing for communicating with the explosion-proof valve of the box. The housing defines a communicating distribution chamber and adsorption chamber, and the adsorption chamber is for filling with an adsorption material to adsorb sulfur dioxide in the waste gas released by the battery. A flow guide member disposed in the distribution chamber, between the inlet of the housing and the adsorption chamber, forming a flow guide channel for guiding the waste gas to diffuse to the adsorption material, and the ventilation area of the flow guide channel gradually increases from one end close to the inlet of the housing to the other end.

2. The purification device according to claim 1, characterized in that, A plurality of the flow guide members are provided, and the plurality of flow guide members are spaced and nested.

3. The purification device according to claim 2, characterized in that, The flow guide member is of an annular structure, and the areas of the inlets of the plurality of flow guide members gradually increase from the inside to the outside, and the areas of the outlets of the plurality of flow guide members gradually increase from the inside to the outside.

4. The purification device according to claim 2, characterized in that, The plurality of flow guide members are concentrically arranged.

5. The purification device according to claim 1, characterized in that, Both the inner surface and the outer surface of the flow guide member are arc-shaped.

6. The purification device according to any one of claims 1-5, characterized in that, Further comprising: A plurality of fitting members spaced circumferentially along the flow guide member and connected between the inner side wall of the housing and the flow guide member.

7. The purification device according to any one of claims 1-5, characterized in that Further comprising: A one-way valve disposed in the housing and close to the inlet of the housing, configured to conduct unidirectionally from the inlet of the housing to the outlet of the housing.

8. The purification device according to any one of claims 1-5, characterized in that, Further comprising: A protective net disposed in the housing and close to the outlet of the housing.

9. The purification device according to any one of claims 1-5, characterized in that, The housing includes: An intake section, the inlet of which is for communicating with the explosion-proof valve of the box; A main section, the outlet of the intake section communicating with the inlet of the main section, and the main section forming the distribution chamber and the adsorption chamber; An outlet section, the inlet of the outlet section communicating with the outlet of the main section, and the outlet of the outlet section for communicating with the external environment.

10. The purification device according to claim 9, characterized in that The end surface at the outlet of the outlet section is inclined downward from top to bottom in a direction approaching the main section.

11. The purification device according to any one of claims 1-5, characterized in that, Further comprising: A sealing member adapted to be arranged between the outer edge of the inlet of the housing and the box.

12. A battery, characterized in that, Comprising: A box defining an accommodation space; A plurality of battery cells stacked in the accommodation space; The purification device according to any one of claims 1-11, the purification device being installed outside the box and communicating with the explosion-proof valve of the box.

13. The battery according to claim 12, characterized in that, The explosion-proof valves of the plurality of battery cells face the explosion-proof valve of the box.

14. A vehicle, characterized in that, Comprising: The battery according to claim 12 or 13.

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