Exhaust part, battery pack tray, battery pack box body, battery pack and electric equipment

Abstract

The utility model provides an exhaust part, a battery pack tray, a battery pack box body, a battery pack and electric equipment. Relates to the technical field of batteries. The exhaust part comprises an exhaust body, a first valve and a filter part. The exhaust body is provided with an air inlet, a first exhaust port and a second exhaust port; a first exhaust path is formed between the air inlet and the first exhaust port; a second exhaust path is formed between the air inlet and the second exhaust port; the first valve is arranged at the second exhaust port and used for controlling opening and closing of the second exhaust port; the filter is disposed in the first exhaust path. By arranging the first exhaust path and the second exhaust path, the exhaust part separately treats the filtering function and the explosion-proof function, the use of the filtering part ensures the cleanness of exhaust gas, and the second exhaust path provides a redundant safety mechanism to deal with the blockage of the first exhaust path, so that the smoke exhaust efficiency of the battery pack is improved, and the safety of the battery pack is improved. The explosion of the battery pack is avoided, and the use performance of the electric equipment is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, in particular to an exhaust member, a battery pack tray, a battery pack box, a battery pack and an electric equipment. BACKGROUND

[0002] When a battery is in thermal runaway, a large amount of flammable smoke will be generated, which may cause the battery to catch fire.

[0003] In related technologies, the discharge of smoke and sparks from the battery pack is often considered to prevent the battery pack from catching fire. For example, a battery thermal runaway smoke treatment device includes a cooling unit, a dilution unit and a mixing device, a plurality of cooling devices are connected in series to cool the thermal runaway smoke; an adsorption device and a gas collection bag are arranged at the outlet end of the battery thermal runaway smoke treatment device to collect liquefied electrolyte and flammable gas.

[0004] However, the existing battery pack has poor smoke exhaust effect, which may cause explosion. UTILITY MODEL CONTENT

[0005] The present application provides an exhaust member, a battery pack tray, a battery pack box, a battery pack and an electric equipment, which improves the smoke exhaust efficiency of the exhaust member, facilitates efficient smoke exhaust, avoids the explosion problem caused by poor smoke exhaust of the exhaust member, the battery pack box and the battery pack, and improves the use performance of the electric equipment.

[0006] In a first aspect, an exhaust member is provided, which includes:

[0007] An exhaust body is provided with an air inlet, a first exhaust port and a second exhaust port; a first exhaust path is formed between the air inlet and the first exhaust port; a second exhaust path is formed between the air inlet and the second exhaust port;

[0008] A first valve is arranged at the second exhaust port, and the first valve is used to control the opening and closing of the second exhaust port.

[0009] A filter is arranged in the first exhaust path.

[0010] In some embodiments of the present application, a first exhaust channel is arranged in the exhaust body; the air inlet, the first exhaust port and the second exhaust port are in communication with the first exhaust channel.

[0011] In the extension direction of the first exhaust channel, the filter is arranged between the air inlet and the first exhaust port; and the second exhaust port is arranged on the side of the filter close to the air inlet.

[0012] In some embodiments of the present application, the exhaust body is provided with a first exhaust channel and a second exhaust channel which are in communication with each other.

[0013] The air inlet, the first exhaust port and the first exhaust passage are in communication; and the second exhaust port and the second exhaust passage are in communication.

[0014] The filter is located in the first exhaust passage.

[0015] In some embodiments of the present application, the exhaust member further comprises a second valve, which is arranged at the first exhaust port.

[0016] In some embodiments of the present application, the first valve and the second valve are both air pressure valves, and the detonation pressure of the first valve is greater than that of the second valve.

[0017] In some embodiments of the present application, the detonation pressure of the second valve is A, and A satisfies: 0KPa

[0018] In some embodiments of the present application, the detonation pressure of the first valve is B, and B satisfies: 15KPa

[0019] In some embodiments of the present application, the second valve comprises one of a spring type explosion-proof valve or a fragment type explosion-proof valve.

[0020] In some embodiments of the present application, the first valve comprises a spring type explosion-proof valve.

[0021] In some embodiments of the present application, the first exhaust passage extends along a first direction.

[0022] In some embodiments of the present application, the exhaust body has two side walls oppositely arranged along a second direction, the air inlet is arranged on one side wall, and the first exhaust port and the second exhaust port are arranged on the other side wall.

[0023] The first direction and the second direction are perpendicular.

[0024] In some embodiments of the present application, along the first direction, the air inlet is located in the middle of the exhaust body, and the first exhaust port is arranged close to the edge of the exhaust body.

[0025] The second exhaust port is arranged close to the air inlet.

[0026] In some embodiments of the present application, when the exhaust body is provided with the first exhaust passage and the second exhaust passage, the second exhaust passage extends along the first direction.

[0027] In some embodiments of the present application, along a third direction, the first exhaust passage and the second exhaust passage are arranged adjacently.

[0028] The first direction, the second direction and the third direction are perpendicular to each other.

[0029] In some embodiments of the present application, along the first direction, the air inlet is located in the middle of the exhaust body, and the first exhaust port is arranged close to the edge of the exhaust body.

[0030] In some embodiments of this application, the number of first exhaust ports is at least two, and at least two first exhaust ports are disposed on both sides of the air inlet along a first direction.

[0031] In some embodiments of this application, the second exhaust port is disposed near the edge of the exhaust body along the first direction.

[0032] In some embodiments of this application, the exhaust body includes a shell body, and a first exhaust channel and a second exhaust channel are formed in the shell cavity of the shell body.

[0033] In some embodiments of this application, the exhaust body further includes a partition that divides the housing cavity into a first exhaust channel and a second exhaust channel along a third direction.

[0034] In some embodiments of this application, the partition is provided with a partition opening, and the first exhaust channel and the second exhaust channel are connected through the partition opening.

[0035] In some embodiments of this application, the exhaust component further includes a grille disposed in the first exhaust passage.

[0036] In some embodiments of this application, the total cross-sectional area of ​​the grille openings is greater than the cross-sectional area of ​​the air inlet.

[0037] In some embodiments of this application, the cross-sectional area of ​​the air inlet is C, where C satisfies: 400mm² 2 ≤C≤800mm 2 .

[0038] In some embodiments of this application, along the first direction, the cross-section of the grid opening includes at least one of circular, square, and cross-shaped.

[0039] In some embodiments of this application, the number of grilles is at least two, and the at least two grilles are spaced apart along a first direction.

[0040] In some embodiments of this application, an installation area is formed between two adjacent grilles, and the filter element is located in the installation area.

[0041] In some embodiments of this application, the filter element includes at least one of an alumina layer, a metal foam layer, a silica gel adsorbent layer, an activated carbon adsorbent layer, and a molecular sieve layer.

[0042] Secondly, embodiments of this application provide a battery pack tray, which includes an exhaust element; or, the battery pack tray includes at least one side beam, which forms the exhaust body of the exhaust element.

[0043] Thirdly, embodiments of this application provide a battery pack housing, which includes an exhaust vent or a battery pack tray.

[0044] Fourthly, embodiments of this application provide a battery pack, including:

[0045] The battery pack housing has a cavity.

[0046] The battery cell is located inside the cavity of the battery pack housing.

[0047] Fifthly, embodiments of this application provide an electrical device, including a battery pack or a battery pack housing.

[0048] This application provides an exhaust component, a battery pack tray, a battery pack housing, a battery pack, and electrical equipment. The exhaust component includes an exhaust body, a first valve, and a filter. The exhaust body is provided with an air inlet, a first exhaust port, and a second exhaust port; a first exhaust path is formed between the air inlet and the first exhaust port; a second exhaust path is formed between the air inlet and the second exhaust port; the first valve is located at the second exhaust port and is used to control the opening and closing of the second exhaust port; the filter is located in the first exhaust path.

[0049] The filter element is installed in the first exhaust path. Its primary function is to prevent sparks generated within the battery pack housing due to thermal runaway from escaping through this path, thereby reducing the risk of external fire. The filter element can also absorb or filter out fumes generated during thermal runaway, reducing the emission of harmful substances.

[0050] By providing a second venting path, the venting component offers a safe pressure relief route to prevent potential hazards caused by blockage of the first venting path. In the event of multi-cell failure in the battery pack, the second venting path provides an additional venting route, preventing pressure buildup due to blockage of the first venting path and thus reducing the risk of battery pack explosion.

[0051] A first exhaust path is formed between the air inlet and the first exhaust port; a second exhaust path is formed between the air inlet and the second exhaust port. This design enhances the battery pack's safety under extreme conditions by separating filtration and explosion-proof functions. The use of filters ensures clean exhaust gases, while the second exhaust path provides a redundant safety mechanism to cope with blockage of the first exhaust path, improving the battery pack's flue gas exhaust efficiency, enhancing the battery pack's safety under extreme conditions, and improving the performance of the electrical equipment. Attached Figure Description

[0052] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0053] Figure 1 This is a schematic diagram of the structure of the battery pack housing provided in an embodiment of this application;

[0054] Figure 2 This is a schematic diagram of the structure of the battery pack housing provided in Embodiment 1 of this application;

[0055] Figure 3 This application provides a schematic diagram of the structure where the side beams of the battery pack housing are the exhaust body. Figure 1 ;

[0056] Figure 4 A schematic diagram of the structure of the exhaust component provided in Embodiment 1 of this application. Figure 1 ;

[0057] Figure 5 A schematic diagram of the structure of the exhaust component provided in Embodiment 1 of this application. Figure 2 ;

[0058] Figure 6 This is a schematic diagram of the structure of the battery pack housing provided in Embodiment 2 of this application;

[0059] Figure 7 This application provides a schematic diagram of the structure where the side beams of the battery pack housing are the exhaust body. Figure 2 ;

[0060] Figure 8 A schematic diagram of the structure of the exhaust component provided in Embodiment 2 of this application. Figure 1 ;

[0061] Figure 9 A schematic diagram of the structure of the exhaust component provided in Embodiment 2 of this application. Figure 2 ;

[0062] Figure 10 A schematic diagram of the structure of the exhaust component provided in Embodiment 2 of this application. Figure 3 ;

[0063] Figure 11 Schematic diagram of the structure of the grille and filter provided in the embodiments of this application Figure 1 ;

[0064] Figure 12 Schematic diagram of the structure of the grille and filter provided in the embodiments of this application Figure 2 .

[0065] Explanation of reference numerals in the attached figures:

[0066] 100: Exhaust body; 101: Shell body; 102: Partition; 103: Partition opening; 110: First exhaust passage; 120: Second exhaust passage;

[0067] 200: Filter element;

[0068] 300: Air intake; 400: First exhaust port; 500: Second exhaust port;

[0069] 600: Grille;

[0070] 700: Box body; 800: Side beam.

[0071] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0072] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0073] When thermal runaway occurs in a battery pack, a large amount of flammable smoke is generated. This smoke contains electrolyte vapor, H2, CO, CH4, and other substances. Once outside the battery pack, this flammable smoke mixes with ambient air, and this mixture can ignite upon contact with an external ignition source. Taking lithium-ion batteries as an example, thermal runaway itself generates sparks, which can ignite when they travel with the smoke outside the battery. Therefore, preventing the escape of thermal runaway smoke and sparks from the battery pack can help suppress the risk of fire in lithium-ion battery packs.

[0074] In related technologies, additional processing devices are often added to suppress ignition caused by thermal runaway flue gas and sparks. For example, in a battery thermal runaway flue gas treatment device, the device includes a cooling unit, a dilution unit, and a mixing unit. Multiple cooling units are connected in series to cool the thermal runaway flue gas. An adsorption device and a gas collection bag are installed at the outlet end to collect the liquefied electrolyte and combustible gas.

[0075] In another type of battery thermal runaway fume treatment device, the device includes a mounting frame and a filter layer. This device meets requirements for blocking solids and resisting high temperatures, preventing large metal particles or sparks generated during thermal runaway from being ejected from the pack, thereby reducing the probability of battery pack fire. However, the above solution does not consider that if thermal diffusion occurs in the battery pack, the large number of runaway cells will cause the continuous accumulation of solid and liquid substances, which may clog the treatment device. This could lead to excessively high gas pressure within the pack, resulting in a more dangerous battery pack explosion.

[0076] Therefore, existing battery packs suffer from poor smoke exhaust performance, which can lead to explosions.

[0077] In view of this, embodiments of this application provide an exhaust component, a battery pack tray, a battery pack housing, a battery pack, and an electrical device. The exhaust component includes an exhaust body, a first valve, and a filter. The exhaust body is provided with an air inlet, a first exhaust outlet, and a second exhaust outlet; a first exhaust path is formed between the air inlet and the first exhaust outlet; a second exhaust path is formed between the air inlet and the second exhaust outlet; the first valve is disposed at the second exhaust outlet and is used to control the opening and closing of the second exhaust outlet; the filter is disposed in the first exhaust path.

[0078] The filter element is installed in the first exhaust path. Its primary function is to prevent sparks generated within the battery pack housing due to thermal runaway from escaping through this path, thereby reducing the risk of external fire. The filter element can also absorb or filter out fumes generated during thermal runaway, reducing the emission of harmful substances.

[0079] By providing a second venting path, the venting component offers a safe pressure relief route to prevent potential hazards caused by blockage of the first venting path. In the event of multi-cell failure in the battery pack, the second venting path provides an additional venting route, preventing pressure buildup due to blockage of the first venting path and thus reducing the risk of battery pack explosion.

[0080] A first exhaust path is formed between the air inlet and the first exhaust port; a second exhaust path is formed between the air inlet and the second exhaust port. This design enhances the battery pack's safety under extreme conditions by separating filtration and explosion-proof functions. The use of filters ensures clean exhaust gases, while the second exhaust path provides a redundant safety mechanism to cope with blockage of the first exhaust path, improving the battery pack's flue gas exhaust efficiency, enhancing the battery pack's safety under extreme conditions, and improving the performance of the electrical equipment.

[0081] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0082] Firstly, referring to Figures 1 to 3 , Figures 6 to 8 As shown in the figure, this application embodiment provides an exhaust device for a battery pack, the exhaust device comprising:

[0083] The exhaust body 100 is provided with an air inlet 300, a first exhaust port 400, and a second exhaust port 500; a first exhaust path is formed between the air inlet 300 and the first exhaust port 400; a second exhaust path is formed between the air inlet 300 and the second exhaust port 500.

[0084] The first valve is located at the second exhaust port 500 and is used to control the opening and closing of the second exhaust port 500.

[0085] Filter element 200 is located in the first exhaust path.

[0086] For example, the exhaust body 100 is provided with an air inlet 300, and the first exhaust path is connected to the cavity of the battery pack housing through the air inlet 300. The main function of the air inlet 300 is to connect the first exhaust path to the cavity of the battery pack housing. This design ensures that when smoke is generated inside the battery pack, the smoke can quickly enter the first exhaust path.

[0087] By setting the air inlet 300, the flue gas can be quickly guided to the first exhaust channel 110 and the second exhaust channel 120 in the event of a thermal runaway event, reducing the residence time of the flue gas inside the battery pack and thus reducing the risk of internal pressure buildup.

[0088] The first exhaust port 400 is the terminal outlet of the first exhaust path, responsible for discharging the flue gas, after being treated by the filter 200, from the battery pack. This design ensures that the flue gas can be safely discharged into the external environment after necessary treatment.

[0089] For example, the second exhaust port 500 is the terminal outlet of the second exhaust path, specifically designed to provide an additional exhaust path when the first exhaust path cannot adequately handle a large volume of flue gas. This design ensures that, in extreme cases, the flue gas can be rapidly discharged, preventing excessive internal pressure. By providing an additional second exhaust port 500, the second exhaust path effectively prevents pressure buildup due to poor exhaust, thereby reducing the risk of battery pack explosion.

[0090] For example, by setting a first exhaust path and a second exhaust path, the exhaust component can select different exhaust paths as needed. This design can improve exhaust efficiency, ensuring that flue gas is effectively discharged under different operating conditions, thereby improving exhaust performance.

[0091] By installing a first valve at the second exhaust port 500, the opening and closing of the second exhaust path can be flexibly controlled. This control mechanism allows for the rapid discharge of large amounts of smoke when needed, preventing smoke from accumulating inside the exhaust components and thus reducing the risk of explosion.

[0092] By installing a filter element 200 in the first exhaust path, particulate matter and other impurities in the flue gas can be effectively filtered, preventing these substances from accumulating in the exhaust components and further improving the safety and reliability of the exhaust components.

[0093] As one feasible implementation, the first exhaust passage 110 extends along a first direction. (Refer to...) Figure 3 As shown, the first direction reference Figure 3 The direction indicated by X in the middle.

[0094] For example, the first exhaust passage 110 extends along a first direction, thus providing a clear and direct flow path for the flue gas, reducing resistance and turbulence during flue gas flow, thereby improving exhaust efficiency. The design of the first exhaust passage 110 extending in a single direction simplifies the structure of the exhaust component, making manufacturing and maintenance easier. This simplification helps reduce production costs and maintenance difficulty.

[0095] As one feasible implementation, the exhaust body 100 has two sidewalls arranged opposite each other along a second direction, with the air inlet 300 disposed on one sidewall and the first exhaust outlet 400 and the second exhaust outlet 500 disposed on the other sidewall.

[0096] The first direction is perpendicular to the second direction. The second direction is referenced. Figure 3 The direction shown in Y.

[0097] For example, refer to Figure 2 and Figure 3 As shown, by placing the air intake 300 and the exhaust port on different sidewalls, the exhaust system can better separate the intake and exhaust processes. This functional separation reduces mutual interference between airflows, ensuring the effectiveness of the filtration and emission processes.

[0098] Figures 3 to 5 The image shows one embodiment of the exhaust component provided in this application.

[0099] As one feasible implementation method, refer to Figures 3 to 5 As shown, a first exhaust channel 110 is provided inside the exhaust body 100; the air inlet 300, the first exhaust port 400, and the second exhaust port 500 are all connected to the first exhaust channel 110.

[0100] Along the extension direction of the first exhaust passage 110, the filter element 200 is disposed between the air inlet 300 and the first exhaust port 400; the second exhaust port 500 is disposed on the side of the filter element 200 near the air inlet 300.

[0101] For example, the first exhaust channel 110 provided within the exhaust body 100 serves as the main exhaust path, ensuring fluid connectivity between the air inlet 300, the first exhaust port 400, and the second exhaust port 500. This design allows the flue gas to flow smoothly within the exhaust component, reducing flow resistance and improving exhaust efficiency.

[0102] The filter element 200 is positioned between the air inlet 300 and the first exhaust port 400, meaning that all flue gas passing through the first exhaust channel 110 is filtered before being discharged. This design effectively removes particulate matter and impurities from the flue gas, reducing potential safety hazards.

[0103] The second exhaust port 500 is located on the side of the filter element 200 near the air inlet 300. This arrangement allows unfiltered flue gas to be quickly released through the first valve when needed. This design provides a bypass exhaust path, which can quickly reduce the pressure inside the exhaust element in case the filter element may become clogged or emergency exhaust is required, preventing dangerous situations and avoiding exhaust element explosions.

[0104] By installing a first valve at the second exhaust port 500, the exhaust system can flexibly control the emission path of the flue gas according to actual needs. This flexibility not only improves the adaptability of the exhaust system but also enhances its responsiveness to emergencies.

[0105] Figures 7 to 10 The image shown is another embodiment of the exhaust component provided in this application.

[0106] As one feasible implementation method, refer to Figures 7 to 10 As shown, the exhaust body 100 is provided with a first exhaust passage 110 and a second exhaust passage 120 that are interconnected.

[0107] The air inlet 300, the first exhaust port 400 and the first exhaust passage 110 are connected; the second exhaust port 500 and the second exhaust passage 120 are connected.

[0108] The filter element 200 is located in the first exhaust channel 110.

[0109] For example, the first exhaust channel 110 is directly connected to the cavity of the battery pack housing and is mainly used to filter and treat the flue gas discharged from inside the battery pack. The filter element 200 is located in the first exhaust channel 110. The filter element 200 mainly prevents sparks generated inside the battery pack housing due to thermal runaway from being discharged through the first exhaust channel 110, thereby reducing the risk of external fire. The filter element 200 can also absorb or filter out the flue gas generated during thermal runaway, reducing the emission of harmful substances.

[0110] The second venting channel 120 is designed to provide a safe pressure relief path to prevent potential hazards caused by blockage of the venting channel. In the event of multi-cell failure in the battery pack, the second venting channel 120 provides an additional venting path to prevent pressure buildup due to blockage of the first channel, thereby reducing the risk of battery pack explosion.

[0111] By forming an interconnected first exhaust channel 110 and a second exhaust channel 120 in the exhaust body 100, this design enhances the battery pack's safety under extreme conditions by separating filtration and explosion-proof functions. The use of the filter 200 ensures the cleanliness of the exhaust gases, while the second exhaust channel 120 provides a redundant safety mechanism to deal with possible exhaust channel blockage. This structure is particularly suitable for battery packs requiring high safety and high reliability, and can effectively cope with emergencies such as thermal runaway.

[0112] The exhaust device provided in this application embodiment has a first exhaust channel 110 with a filtering function and a second exhaust channel 120 with an explosion-proof function. In this way, an independent exhaust path is formed to suppress the blockage problem under extreme conditions. When the battery pack is in the initial stage of thermal diffusion, before the first exhaust channel is blocked by solid and liquid substances in the flue gas, the flue gas flows out from the first exhaust channel 110; while when the solid and liquid substances in the flue gas block the first exhaust channel 110, the flue gas flows out from the second exhaust channel 120.

[0113] In some embodiments, when thermal runaway occurs in the battery pack, the generated flue gas first flows from the cavity of the battery pack housing into the first exhaust channel 110. A filter 200 located in the first exhaust channel 110 filters the flue gas, removing sparks and harmful substances. The filtered flue gas is then safely discharged, reducing its impact on the external environment. The flue gas flow is referenced... Figure 8 The direction indicated by the solid arrow in the middle.

[0114] In other embodiments, additional emission paths are designed to address the large volume of flue gas generated after thermal runaway. The flue gas initially flows into the first exhaust channel 110, but due to the large volume, it may exceed the processing capacity of the filter 200. In this case, the flue gas can be directly discharged through the second exhaust channel 120, which is connected to the first exhaust channel 110. This design ensures effective exhaust even with a large volume of flue gas, avoiding pressure buildup due to poor exhaust and thus reducing the risk of battery pack explosion. (Flue gas flow reference...) Figure 8 The direction indicated by the single arrow in the middle.

[0115] As one feasible implementation method, refer to Figure 7 As shown, the second exhaust passage 120 extends along the first direction.

[0116] For example, the second exhaust passage 120 extends along the first direction, thus providing a clear and direct flow path for the flue gas, reducing resistance and turbulence during flue gas flow, thereby improving exhaust efficiency. The design of the second exhaust passage 120 extending in a single direction simplifies the structure of the exhaust component, making manufacturing and maintenance easier. This simplification helps reduce production costs and maintenance difficulty.

[0117] As one possible implementation, the exhaust body 100 includes a shell body 101, with a first exhaust passage 110 and a second exhaust passage 120 formed in the shell cavity of the shell body 101.

[0118] For example, the shell body 101 provides the necessary structural support for the first exhaust channel 110 and the second exhaust channel 120. By integrating the first exhaust channel 110 and the second exhaust channel 120 into the shell cavity, the structure of the entire exhaust component is more stable and compact.

[0119] The housing 101 can protect the internal first exhaust passage 110 and second exhaust passage 120 from the influence of the external environment, such as physical damage, dust and moisture, thereby improving the durability and reliability of the exhaust components.

[0120] As one possible implementation, the exhaust body 100 also includes a partition 102, which divides the housing cavity into a first exhaust passage 110 and a second exhaust passage 120 along a third direction.

[0121] The first, second, and third directions are perpendicular to each other. The third direction is referenced. Figure 7 The direction indicated by Z in the middle.

[0122] For example, the main function of the partition 102 is to divide the interior of the housing cavity into two independent channels, namely the first exhaust channel 110 and the second exhaust channel 120. This physical separation ensures the independence of the two channels and prevents mutual interference of airflow and pressure between the channels. The partition 102 can also provide additional structural support for the housing body 101, enhancing the rigidity and stability of the entire exhaust body 100.

[0123] As one feasible implementation, the partition 102 is provided with a partition opening 103, and the first exhaust passage 110 and the second exhaust passage 120 are connected through the partition opening 103.

[0124] For example, the partition opening 103 allows the first exhaust passage 110 and the second exhaust passage 120 to communicate with each other. By providing the partition opening 103, pressure balance can be achieved between the first exhaust passage 110 and the second exhaust passage 120. This helps to release pressure through the second exhaust passage 120 when the pressure in the first exhaust passage 110 is too high, avoiding explosion problems caused by blockage of the first exhaust passage 110.

[0125] For example, along the third direction, the partition opening 103 is directly below the air inlet 300, so that the solid and liquid products generated by thermal runaway can flow directly to the second exhaust channel 120, reducing the blockage of the exhaust components by solid and liquid products.

[0126] In some embodiments, after the flue gas enters the first exhaust passage 110 through the inlet 300, it is first treated by the filter 200. The filter 200 removes sparks and harmful substances from the flue gas, ensuring that the emitted gas meets safety and environmental protection requirements. The filtered flue gas is finally discharged through the first exhaust port 400. This process ensures that even in the event of thermal runaway, the flue gas inside the battery pack can be effectively managed and safely discharged.

[0127] In other embodiments, in the event of thermal runaway of the battery pack and the generation of a large amount of flue gas, the first exhaust passage 110 may not be able to completely handle all the flue gas. In this case, the second exhaust passage 120 provides a direct exhaust path through its second exhaust port 500. The presence of the second exhaust port 500 allows the battery pack to quickly release pressure when the flue gas volume is too large, ensuring the structural integrity and safety of the battery pack.

[0128] As one possible implementation, the exhaust component also includes a second valve, which is disposed at the first exhaust port 400.

[0129] For example, the primary function of the second valve is to control the flow of flue gas through the first exhaust port 400. This helps maintain the battery pack's seal under normal operating conditions and allows flue gas to be released when necessary, such as in the event of thermal runaway. In the non-exhausting state, the second valve can be closed to prevent contaminants or moisture from the external environment from entering the battery pack, thereby protecting the internal environment of the battery pack.

[0130] In some embodiments, the second valve may be designed to open automatically when the internal pressure reaches a certain threshold, allowing flue gas to be discharged through the first exhaust port 400. This automation ensures a rapid response in emergency situations.

[0131] In other embodiments, the second valve may also support manual or remote control for manual intervention under specific conditions.

[0132] By installing a second valve at the first vent 400, the venting process can be better controlled, ensuring rapid pressure release when needed while maintaining the battery pack's seal when not in use.

[0133] As one feasible implementation, the first valve is located at the second exhaust port 500.

[0134] For example, the primary function of the first valve is to control the opening and closing of the second exhaust port 500. It can remain closed under normal circumstances to ensure the battery pack's airtightness and prevent unnecessary gas emissions. In the event of thermal runaway of the battery pack and the inability of the first exhaust channel 110 to adequately handle the flue gas, the first valve can open automatically or manually, allowing the flue gas to be rapidly discharged through the second exhaust port 500.

[0135] In some embodiments, the first valve may be designed to open automatically when the pressure in the cavity of the battery pack housing exceeds a preset threshold. This mechanism ensures that, in an emergency, the venting device can respond quickly and release excessive pressure.

[0136] In other embodiments, the first valve may also have a manual control function, allowing the operator to actively open or close the valve when needed.

[0137] By setting a first valve at the second exhaust port 500, the exhaust component can better control the exhaust process, prevent unnecessary emissions, and provide rapid pressure release in emergency situations.

[0138] As one feasible implementation, both the first valve and the second valve are pneumatic valves, with the detonation pressure of the first valve being greater than that of the second valve.

[0139] For example, the second valve serves as a pressure valve, and is located in the first exhaust passage 110 with a lower detonation pressure. This means that the second valve opens at a lower pressure to release the pressure inside the battery pack in the initial stage, handling normal flue gas emissions.

[0140] The first valve is located in the second vent passage 120, where the detonation pressure is relatively high. This makes the first valve primarily used to deal with pressure buildup in extreme situations, providing an additional safe release path.

[0141] By setting different detonation pressures, the exhaust system can achieve a graded response. The second valve opens at a lower pressure to handle general exhaust needs, while the first valve opens at a higher pressure, activating only when the first exhaust channel 110 cannot adequately handle the flue gas. This design provides a redundant safety mechanism, ensuring that the first valve provides additional protection even if the second valve cannot fully release pressure. Through this graded pressure response mechanism, the exhaust system can more precisely control the pressure release process, reducing the risk of explosion due to overpressure.

[0142] For example, in order to ensure the smooth discharge of flue gas, the exhaust capacity of the second valve must be sufficient to meet the flue gas volume required for simultaneous thermal runaway of two batteries.

[0143] Exhaust capacity is usually expressed in volumetric flow rate units, such as cubic meters per hour (m³ / h). 3 / h), liters per minute (L / min) or standard cubic feet per minute.

[0144] For example, along a third direction, the first valve is installed as close as possible to the first exhaust passage 110 to prevent solid-liquid products generated by thermal runaway from clogging the first valve.

[0145] As one feasible implementation, the detonation pressure of the second valve is A, where A satisfies: 0 kPa < A ≤ 5 kPa.

[0146] For example, the detonation pressure of the second valve is set to less than 5 kPa, meaning that the second valve will automatically open when it detects that the pressure in the cavity of the battery pack housing has reached this low threshold. This design ensures that the venting device can quickly release smoke as soon as the pressure begins to rise, preventing further pressure buildup. By being triggered at a lower pressure, the second valve can provide early pressure release in the event of thermal runaway or other abnormalities, protecting the battery pack and its surrounding environment.

[0147] As one feasible implementation method, the detonation pressure of the first valve is B, where B satisfies: 15 kPa ≤ B ≤ 60 kPa.

[0148] For example, by setting the detonation pressure of the first valve to no less than 15 kPa, it is ensured that the first valve will not open accidentally under normal operating pressure, thereby avoiding unnecessary venting. Setting the detonation pressure of the first valve to no less than 60 kPa means that the valve will only open when it detects that the internal system pressure has reached this higher threshold. This design ensures that the first valve is only triggered when the first vent passage 110 and the first valve cannot adequately handle the pressure. By setting a higher detonation pressure, the first valve provides an emergency protection mechanism specifically designed to handle pressure release in extreme situations.

[0149] By setting the detonation pressure of the first valve to no more than 60 kPa, it is ensured that the first valve can open in time to release overpressure before the pressure of the exhaust component reaches a potentially dangerous level, thus protecting the exhaust component and battery pack.

[0150] Understandably, the detonation pressure of the first valve is lower than the failure pressure of the other sealing surfaces of the battery pack.

[0151] As one possible implementation, the second valve includes either a spring-loaded explosion-proof valve or a fragmentation explosion-proof valve.

[0152] For example, a spring-loaded explosion-proof valve controls the opening and closing of the valve by the force of a spring. When the internal pressure of the battery pack exceeds the set detonation pressure, the spring is compressed, and the second valve opens to release the pressure.

[0153] In a spring-loaded explosion-proof valve, the spring force can be adjusted to change the detonation pressure of the second valve, adapting it to different pressure requirements. The spring-loaded explosion-proof valve automatically resets after pressure release, making it suitable for systems requiring multiple uses.

[0154] The fragment-type explosion-proof valve controls pressure release through a pre-designed thin fragment. When the internal pressure of the battery pack exceeds the fragment's tolerance, the fragment ruptures, and the valve opens to release the pressure.

[0155] The fragment-type explosion-proof valve's fragments rupture instantly when the set pressure is reached, providing rapid pressure release. The fragment-type explosion-proof valve has a simple structure, requiring no complex mechanical parts, thus reducing the risk of failure.

[0156] As one feasible implementation, the first valve includes a spring-loaded explosion-proof valve.

[0157] For example, a spring-loaded explosion-proof valve utilizes the mechanical properties of a spring to control the opening and closing of the valve. When the internal pressure of the battery pack exceeds the spring's set pressure threshold, the first valve is pushed open, thereby releasing the pressure. After the pressure drops to a safe level, the spring automatically resets the valve, restoring the battery pack's seal. This automatic reset function ensures that the battery pack can quickly return to normal operation after venting.

[0158] As one feasible implementation, along the first direction, the air inlet 300 is located in the middle of the exhaust body 100, and the first exhaust outlet 400 is located near the edge of the exhaust body 100.

[0159] The second exhaust port 500 is positioned close to the air intake port 300.

[0160] As one feasible implementation, when the exhaust body 100 is provided with a first exhaust channel 110 and a second exhaust channel 120, the first exhaust channel 110 and the second exhaust channel 120 are arranged adjacent to each other along a third direction.

[0161] For example, by arranging the first exhaust passage 110 and the second exhaust passage 120 adjacent to each other in a third direction, the space inside the battery pack can be utilized more effectively. This compact layout helps to achieve complex exhaust functions within a limited space.

[0162] The adjacent arrangement design ensures that the first exhaust passage 110 and the second exhaust passage 120 can operate independently without interfering with each other. This design allows the second exhaust passage 120 to continue to function normally even if the first exhaust passage 110 malfunctions or is obstructed.

[0163] As one feasible implementation, along the first direction, the air inlet 300 is located in the middle of the exhaust body 100, and the first exhaust outlet 400 is located near the edge of the exhaust body 100.

[0164] For example, positioning the air inlet 300 in the middle of the exhaust body 100 helps to evenly distribute the flue gas from inside the battery pack. This design ensures that the flue gas can enter the first exhaust passage 110 evenly, reducing the risk of excessive local pressure. The centrally located air inlet 300 optimizes the flow path of the flue gas, allowing it to be processed more effectively through the filter 200.

[0165] Positioning the first exhaust port 400 at the edge of the exhaust body 100 effectively discharges the treated flue gas from the system. This edge location helps maximize exhaust efficiency and reduce the residence time of flue gas within the exhaust component. The edge-positioned exhaust port design simplifies the structure of the first exhaust channel 110, allowing the filtered flue gas to be discharged quickly.

[0166] As one possible implementation, the number of first exhaust ports 400 is at least two, and at least two first exhaust ports 400 are arranged on both sides of the air inlet 300 along a first direction.

[0167] For example, by providing at least two first exhaust ports 400, the exhaust system can achieve more uniform smoke emission. This design helps to balance the release of internal pressure in the battery pack, reducing the risk of excessive local pressure. The arrangement of multiple first exhaust ports 400 can increase the total cross-sectional area of ​​the first exhaust channel 110, thereby improving exhaust efficiency and ensuring rapid exhaust of smoke in the event of thermal runaway.

[0168] At least two first exhaust ports 400 are arranged on both sides of the air inlet 300 along a first direction, forming a symmetrical layout. This design helps maintain the structural stability of the exhaust components during exhaust and reduces stress concentration caused by asymmetrical exhaust. This arrangement optimizes the airflow path, allowing the flue gas to be guided to the first exhaust ports 400 more directly and quickly, reducing the residence time in the first exhaust channel 110.

[0169] The design of multiple first exhaust ports 400 provides redundancy, so that even if one first exhaust port 400 is blocked, the other first exhaust ports 400 can still continue to function, ensuring the reliability of the exhaust components.

[0170] As one possible implementation, the second exhaust port 500 is disposed near the edge of the exhaust body 100 along the first direction.

[0171] For example, the edge arrangement brings the second exhaust port 500 closer to the external environment, reducing the flow resistance of flue gas in the second exhaust passage 120, thereby improving exhaust efficiency.

[0172] By rapidly releasing pressure, the edge-mounted second vent 500 can more effectively protect the battery pack in the event of thermal runaway or other extreme conditions, reducing the risk of explosion or damage.

[0173] As one feasible implementation method, refer to Figure 11 and Figure 12 As shown, the exhaust component also includes a grille 600, which is disposed in the first exhaust passage 110.

[0174] For example, the grille 600 can be used to filter particulate matter in the first exhaust passage 110, preventing larger particles or debris from entering or clogging the first exhaust passage 110. During exhaust, the grille 600 can prevent sparks or other potentially hazardous substances from passing through the exhaust passage, thereby reducing the risk of fire or explosion. The structure of the grille 600 can regulate and distribute the airflow, ensuring that the airflow passes evenly through the first exhaust passage 110, thus improving exhaust efficiency.

[0175] For example, the grille 600 can be a metal grille.

[0176] As one feasible implementation, the total cross-sectional area of ​​the grille opening of the grille 600 is larger than the cross-sectional area of ​​the air inlet 300. By designing the cross-sectional area of ​​the grille opening to be larger than that of the air inlet 300, the larger grille opening area allows more gas to pass through simultaneously, improving the exhaust capacity of the exhaust system under high load or emergency conditions, and helping to improve the overall exhaust efficiency of the exhaust system.

[0177] As one feasible implementation, the cross-sectional area of ​​the air inlet 300 is C, where C satisfies: 400mm. 2 ≤C≤800mm 2 .

[0178] For example, the cross-sectional area of ​​the air inlet 300 is not less than 400 mm². 2 This design ensures sufficient airflow into the exhaust system. This helps maintain appropriate air pressure and airflow velocity within the exhaust system, thereby improving overall exhaust efficiency.

[0179] The cross-sectional area of ​​the air inlet 300 is no more than 800 mm². 2 This prevents excessive smoke from entering the exhaust system and avoids causing excessive pressure or other adverse effects on the internal components of the exhaust system.

[0180] As one possible implementation, along the first direction, the cross-section of the grille opening of the grille 600 includes at least one of circular, square, and cross-shaped.

[0181] For example, circular grille openings can provide a smooth airflow path, reducing turbulence and drag, thereby improving exhaust efficiency. Circular grille opening designs typically have higher structural strength and are better able to withstand pressure variations.

[0182] Square grille openings can more effectively utilize the surface space of the grille, increasing the opening area and thus improving airflow. The square grille opening design is relatively simple to manufacture, making it suitable for mass production.

[0183] The cross-shaped grille openings help to distribute airflow evenly in different directions, optimizing airflow management.

[0184] In some embodiments, the cross-section of the grille opening of the grille 600 is circular.

[0185] In other embodiments, the cross-section of the grille opening of the grille 600 is square.

[0186] In some other embodiments, the cross-section of the grille opening of the grille 600 is cross-shaped.

[0187] In some other embodiments, the cross-section of the grille opening of the grille 600 is circular or cross-shaped.

[0188] In some other embodiments, the cross-section of the grille opening of the grille 600 is square or cross-shaped.

[0189] In some other embodiments, the cross-section of the grille opening of the grille 600 is circular or square.

[0190] In some other embodiments, the cross-section of the grille opening of the grille 600 is circular, square, or cross-shaped.

[0191] As one feasible implementation method, refer to Figure 11 and Figure 12 As shown, the number of grilles 600 is at least two, and at least two grilles 600 are arranged at intervals along the first direction.

[0192] For example, by incorporating at least two grilles 600, the exhaust system can achieve a more uniform and efficient exhaust effect. This design helps optimize airflow distribution, ensuring a consistent airflow velocity and pressure throughout the exhaust system. The arrangement of multiple grilles 600 increases the total cross-sectional area of ​​the airflow channels, thereby improving exhaust efficiency, especially under high loads or emergency conditions.

[0193] The arrangement of grilles 600 at intervals along the first direction helps optimize the airflow path, allowing airflow to pass more smoothly through the exhaust components. This design reduces airflow resistance and improves overall exhaust efficiency.

[0194] The spaced-out grilles 600 can reduce airflow interference and vortex formation between adjacent grilles 600, thereby improving the stability and efficiency of the system.

[0195] As one feasible implementation, an installation area is formed between two adjacent grilles 600, and the filter element 200 is located in the installation area.

[0196] For example, the mounting area between two adjacent grilles 600 provides a stable mounting position for the filter element 200, ensuring that the filter element 200 can be firmly fixed in the exhaust pipe and will not be displaced due to vibration or airflow.

[0197] By creating mounting areas between the grilles 600, the exhaust system can effectively utilize the internal space, avoid adding extra structural complexity, and maintain the compactness of the overall exhaust system design.

[0198] As one possible implementation, the number of filter elements 200 is at least two, and at least two filter elements 200 are arranged at intervals along the first direction.

[0199] For example, by incorporating at least two filter elements 200, the exhaust system can provide multi-stage filtration. This multi-layer filtration design helps to more effectively remove impurities and particulate matter from the airflow, improving overall filtration efficiency. Multiple filter elements 200 provide redundancy, ensuring that even if one filter element 200 fails or degrades, the others can continue to function, guaranteeing the reliability of the exhaust system.

[0200] The filter element 200 primarily prevents sparks generated within the battery pack housing due to thermal runaway from being expelled through the first exhaust channel 110, thereby reducing the risk of external fire. The filter element 200 can also absorb or filter out fumes generated during thermal runaway, reducing the emission of harmful substances.

[0201] As one feasible implementation, the filter element 200 includes at least one of an alumina layer, a metal foam layer, a silica gel adsorbent layer, an activated carbon adsorbent layer, and a molecular sieve layer.

[0202] For example, the alumina layer has adsorption properties and is often used to adsorb acidic gases.

[0203] The metal foam layer provides efficient particle filtration while maintaining air permeability.

[0204] Silica gel adsorption layers are used to adsorb organic compounds and have high adsorption capacity and regeneration ability.

[0205] The activated carbon adsorption layer has adsorption capacity and can effectively remove volatile organic compounds and odors.

[0206] Molecular sieves have selective adsorption properties, enabling separation and purification based on molecular size and polarity.

[0207] In some embodiments, the filter element 200 includes one of an alumina layer, a metal foam layer, a silica gel adsorbent layer, an activated carbon adsorbent layer, and a molecular sieve layer.

[0208] In other embodiments, the filter element 200 includes any two of the following: an alumina layer, a metal foam layer, a silica gel adsorbent layer, an activated carbon adsorbent layer, and a molecular sieve layer.

[0209] In some other embodiments, the filter element 200 includes any three of the following: an alumina layer, a metal foam layer, a silica gel adsorbent layer, an activated carbon adsorbent layer, and a molecular sieve layer.

[0210] The filter element 200 includes any four of the following: an alumina layer, a metal foam layer, a silica gel adsorbent layer, an activated carbon adsorbent layer, and a molecular sieve layer.

[0211] The filter element 200 includes all of the following layers: alumina layer, metal foam layer, silica gel adsorbent layer, activated carbon adsorbent layer, and molecular sieve layer.

[0212] Secondly, embodiments of this application provide a battery pack tray, which includes an exhaust element; or, the battery pack tray includes at least one side beam, which forms the exhaust body of the exhaust element.

[0213] For example, the side beam 800, as a key structural component of the battery pack tray, provides the necessary mechanical strength and stability to effectively withstand external impacts and pressures.

[0214] By forming a first exhaust channel 110 and a second exhaust channel 120 for flue gas absorption inside the side beam 800, the side beam 800 can absorb and guide flue gas in the event of thermal runaway or other abnormalities in the battery pack.

[0215] This integrated design not only effectively absorbs flue gas but also ensures its rapid and safe discharge by optimizing the airflow path. By integrating the flue gas absorption function into the side beam 800, extra space is avoided for a separate exhaust component, thus saving overall battery pack space.

[0216] It is understood that since the battery pack tray of this application adopts the technical solution of the above-mentioned exhaust component embodiment, it has at least the beneficial effects brought about by the technical solution of the above-mentioned exhaust component embodiment, which will not be elaborated here.

[0217] Thirdly, embodiments of this application provide a battery pack housing, which includes an exhaust vent or a battery pack tray.

[0218] It is understood that since the battery pack housing of this application adopts the technical solutions of the above-described battery pack tray embodiment or the above-described exhaust component embodiment, it at least has the beneficial effects brought about by the technical solutions of the above-described battery pack tray or exhaust component embodiment, which will not be elaborated here.

[0219] Fourthly, embodiments of this application provide a battery pack, including:

[0220] The battery pack housing has a cavity.

[0221] The battery cell is located inside the cavity of the battery pack housing.

[0222] It is understood that since the battery pack of this application adopts the technical solution of the above-described battery pack housing embodiment, it has at least the beneficial effects brought about by the technical solution of the above-described battery pack housing embodiment, which will not be elaborated here.

[0223] Fifthly, embodiments of this application provide an electrical device, including a battery pack or a battery pack housing.

[0224] It is understood that since the electrical equipment of this application adopts the technical solution of the above-described battery pack or battery pack housing embodiment, it at least has the beneficial effects brought about by the technical solution of the above-described battery pack or battery pack housing embodiment, which will not be elaborated here.

[0225] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0226] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. An exhaust component, characterized in that, The exhaust component includes: An exhaust body (100) is provided with an air inlet (300), a first exhaust outlet (400), and a second exhaust outlet (500); a first exhaust path is formed between the air inlet (300) and the first exhaust outlet (400); a second exhaust path is formed between the air inlet (300) and the second exhaust outlet (500). A first valve is provided at the second exhaust port (500), and the first valve is used to control the opening and closing of the second exhaust port (500); A filter element (200) is disposed in the first exhaust path.

2. The exhaust component according to claim 1, characterized in that, The exhaust body (100) is provided with a first exhaust channel (110); the air inlet (300), the first exhaust port (400), and the second exhaust port (500) are all connected to the first exhaust channel (110); Along the extending direction of the first exhaust passage (110), the filter element (200) is disposed between the air inlet (300) and the first exhaust port (400); the second exhaust port (500) is disposed on the side of the filter element (200) near the air inlet (300).

3. The exhaust component according to claim 1, characterized in that, The exhaust body (100) is provided with a first exhaust channel (110) and a second exhaust channel (120) that are interconnected. The air inlet (300), the first exhaust port (400), and the first exhaust passage (110) are connected; the second exhaust port (500) and the second exhaust passage (120) are connected. The filter element (200) is located in the first exhaust channel (110).

4. The exhaust component according to claim 2 or 3, characterized in that, It also includes a second valve, which is located at the first exhaust port (400).

5. The exhaust component according to claim 4, characterized in that, Both the first valve and the second valve are pneumatic valves, and the detonation pressure of the first valve is greater than that of the second valve.

6. The exhaust component according to claim 4, characterized in that, The detonation pressure of the second valve is A, wherein A satisfies: 0 kPa < A ≤ 5 kPa.

7. The exhaust component according to claim 4, characterized in that, The detonation pressure of the first valve is B, and B satisfies: 15 kPa ≤ B ≤ 60 kPa.

8. The exhaust component according to claim 4, characterized in that, The second valve includes either a spring-loaded explosion-proof valve or a fragment explosion-proof valve.

9. The exhaust component according to claim 4, characterized in that, The first valve includes a spring-loaded explosion-proof valve.

10. The exhaust component according to claim 2 or 3, characterized in that, The first exhaust passage (110) extends along a first direction.

11. The exhaust component according to claim 10, characterized in that, The exhaust body (100) has two sidewalls arranged opposite each other along a second direction, the air inlet (300) is disposed on one side of the sidewall, and the first exhaust port (400) and the second exhaust port (500) are disposed on the other side of the sidewall; The first direction and the second direction are perpendicular.

12. The exhaust component according to claim 11, characterized in that, Along the first direction, the air inlet (300) is located in the middle of the exhaust body (100), and the first exhaust outlet (400) is located near the edge of the exhaust body (100); The second exhaust port (500) is located near the air inlet (300).

13. The exhaust component according to claim 11, characterized in that, When the exhaust body (100) is provided with a first exhaust passage (110) and a second exhaust passage (120), the second exhaust passage (120) extends along the first direction.

14. The exhaust component according to claim 13, characterized in that, Along a third direction, the first exhaust passage (110) and the second exhaust passage (120) are arranged adjacent to each other; The first direction, the second direction, and the third direction are perpendicular to each other.

15. The exhaust component according to claim 14, characterized in that, Along the first direction, the air inlet (300) is located in the middle of the exhaust body (100), and the first exhaust outlet (400) is located near the edge of the exhaust body (100).

16. The exhaust component according to claim 15, characterized in that, The number of the first exhaust ports (400) is at least two, and at least two of the first exhaust ports (400) are arranged on both sides of the air inlet (300) along the first direction.

17. The exhaust component according to claim 16, characterized in that, Along the first direction, the second exhaust port (500) is located near the edge of the exhaust body (100).

18. The exhaust component according to claim 17, characterized in that, The exhaust body (100) includes a shell body (101), and the first exhaust passage (110) and the second exhaust passage (120) are formed in the shell cavity of the shell body (101).

19. The exhaust component according to claim 18, characterized in that, The exhaust body (100) also includes a partition (102) that divides the housing cavity into a first exhaust passage (110) and a second exhaust passage (120) along the third direction.

20. The exhaust component according to claim 19, characterized in that, The partition (102) is provided with a partition opening (103), and the first exhaust channel (110) and the second exhaust channel (120) are connected through the partition opening (103).

21. The exhaust component according to claim 2 or 3, characterized in that, It also includes a grille (600) disposed in the first exhaust passage (110).

22. The exhaust component according to claim 21, characterized in that, The total cross-sectional area of ​​the grille opening of the grille (600) is greater than the cross-sectional area of ​​the air inlet (300).

23. The exhaust component according to claim 22, characterized in that, The cross-sectional area of ​​the air inlet (300) is C, and C satisfies: 400 mm 2 ≤C≤800mm 2 .

24. The exhaust component according to claim 22, characterized in that, Along the first direction, the cross-section of the grid opening of the grid (600) includes at least one of circular, square, and cross-shaped.

25. The exhaust component according to claim 24, characterized in that, The number of the grilles (600) is at least two, and the at least two grilles (600) are spaced apart along the first direction.

26. The exhaust component according to claim 25, characterized in that, An installation area is formed between two adjacent grilles (600), and the filter element (200) is located in the installation area.

27. The exhaust component according to claim 26, characterized in that, The filter element (200) includes one of the following: an alumina layer, a metal foam layer, a silica gel adsorbent layer, an activated carbon adsorbent layer, and a molecular sieve layer.

28. A battery pack tray, characterized in that, The battery pack tray includes the venting component as described in any one of claims 1-27; Alternatively, the battery pack tray may include at least one side beam, the at least one side beam forming the exhaust body of the exhaust element according to any one of claims 1-27.

29. A battery pack housing, characterized in that, The battery pack housing includes the venting component as described in any one of claims 1-27; or the battery pack tray as described in claim 28.

30. A battery pack, characterized in that, include: The battery pack housing of claim 29, wherein the battery pack housing has a cavity; The battery cell is located inside the cavity of the battery pack housing.

31. An electrical appliance, characterized in that, It includes the battery pack as described in claim 30 or the battery pack housing as described in claim 29.

Images