Battery, power utilization device and energy storage device

Abstract

The utility model provides a battery, a power utilization device and an energy storage device, and belongs to the technical field of batteries. The battery comprises a box body, a battery monomer and a filtering assembly, the box body is provided with a containing cavity and a pressure relief opening, the battery monomer is located in the containing cavity, the pressure relief opening is communicated with the containing cavity, the box body comprises a pressure relief valve, and the pressure relief valve is located at the pressure relief opening. The filtering assembly is connected with the box body, the filtering assembly communicates with the pressure relief opening, and the filtering assembly is at least configured to be used for reducing the particulate matter concentration of the matter discharged from the containing cavity through the liquid. The pressure relief opening is communicated with the filter assembly, waste substances need to be discharged through the filter assembly, liquid in the filter assembly can reduce the particulate matter concentration and temperature of the waste substances, particulate matters discharged into air subsequently are reduced, pollution to the environment is reduced, the temperature of the waste substances is reduced, and the probability of causing scald or burn accidents is reduced. And the possibility of safety accidents is reduced.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery, an electrical device and an energy storage device. Background Art

[0002] Energy conservation and emission reduction are the key to sustainable social development. Rechargeable batteries have the characteristics of storing or releasing energy as needed, so they are widely used in various electrical devices or energy storage systems, and are an important part of promoting energy transformation and sustainable development. For the new energy industry, battery technology is an important factor in its development.

[0003] The battery includes a box body and a battery cell. The box body has a storage cavity, and the battery cell is located in the storage cavity. During the use of the battery, the battery cell will release gas, and the gas will increase the pressure in the storage cavity. When the pressure in the storage cavity increases to a critical value, the gas is discharged from the pressure relief port on the box body. In the case of thermal runaway of the battery, the battery cell will release a lot of gas, and the gas is mixed with particulate matter. If the particulate matter is directly discharged into the air, it will cause environmental pollution. Utility Model Content

[0004] The present application aims to solve at least one of the technical problems in the background technology. To this end, one purpose of the present application is to provide a battery, an electrical device and an energy storage device to reduce the concentration of particulate matter in the gas discharged in the case of thermal runaway of the battery and reduce pollution to the environment.

[0005] An embodiment of the first aspect of the present application provides a battery, comprising: a casing having a accommodating chamber and a pressure relief port, the pressure relief port being connected to the accommodating chamber, the casing comprising a pressure relief valve, the pressure relief valve being located at the pressure relief port; a battery cell being located in the accommodating chamber; a filter assembly connected to the casing, the filter assembly being connected to the pressure relief port; wherein the filter assembly is at least configured to reduce the concentration of particulate matter of a substance discharged from the accommodating chamber by means of a liquid.

[0006] In the technical solution of the embodiment of the present application, the pressure relief port is connected to the filter assembly, and the waste material needs to be discharged through the filter assembly. The filter assembly can reduce the concentration of particles in the waste material, and the subsequent particles discharged into the air are reduced, which reduces pollution to the environment and reduces the possibility of safety accidents. In addition, when the battery is under thermal runaway, the temperature of the waste material discharged is high, which is easy to cause scalding or burning accidents. The liquid in the filter assembly can reduce the temperature of the waste material. When the temperature of the waste material is reduced, the probability of causing scalding or burning accidents is reduced, and the possibility of safety accidents is reduced.

[0007] In some embodiments, the filter assembly includes: a filter pipe having a filter inlet, a filter outlet and a filter channel, the filter inlet and the filter outlet are both connected to the filter channel, the filter inlet is connected to the pressure relief port, and the filter outlet is connected to the environment outside the accommodating chamber; an atomizing element is located in the filter channel, the atomizing element is connected to the filter pipe, and the atomizing element is configured to input liquid into the filter channel. In the case of thermal runaway of the battery, the waste material enters the filter channel through the filter inlet, the atomizing element converts the liquid into tiny droplets or mist and disperses it into the filter channel, the waste material is more likely to contact with the tiny droplets or mist, and the particle concentration and temperature of the waste material are reduced during the contact process, that is, the contact area between the waste material and the liquid is increased, the efficiency of reducing the particle concentration and temperature of the waste material is improved, and the filtering effect of the filter assembly is improved.

[0008] In some embodiments, the atomizing element includes: an atomizer, which is located in the filter channel, the atomizer is connected to the filter pipe, and the atomizer has a plurality of mutually spaced atomizing holes; an input pipe, the input pipe passes through the side wall of the filter pipe and is connected to the atomizer, and the input pipe is connected to the atomizing hole. In the case of thermal runaway of the battery, the waste material enters the filter channel, the input pipe inputs liquid into the atomizer, the atomizer atomizes the liquid, and the atomized liquid is sprayed out from the plurality of atomizing holes. The atomized liquid can be more evenly distributed into the filter channel through the plurality of atomizing holes, thereby increasing the possibility of contact between the waste material and the atomized liquid, improving the efficiency of reducing the concentration and temperature of the waste material particles, and improving the filtering effect of the filter assembly.

[0009] In some embodiments, the atomizing element further includes: an atomizing pipeline located in the filtering channel, the atomizing pipeline is connected to the filtering pipeline, the atomizing pipeline has an atomizing inlet, an atomizing outlet and an atomizing channel, the atomizing inlet and the atomizing outlet are both connected to the atomizing channel, the atomizing inlet and the atomizing outlet are both connected to the filtering channel, the atomizing inlet is located between the filtering inlet and the atomizing outlet, and the atomizing outlet is located between the atomizing inlet and the filtering outlet; wherein, the atomizer is located in the atomizing channel, and the atomizer is connected to the atomizing pipeline. The atomizing pipeline is provided for installing the atomizer, and there are more connection points between the atomizing pipeline and the filtering pipeline, thereby improving the stability of the atomizing element.

[0010] In some embodiments, the atomizing element further includes: a first filter, located in the atomizing channel, connected to the atomizing pipeline, and located on a side of the atomizer close to the atomizing inlet. The first filter can filter particulate matter in the waste material. If there are toxic substances in the particulate matter, the first filter can reduce the possibility of particulate matter being discharged, reduce the incidence of safety accidents, and improve the filtering effect of the filter component.

[0011] In some embodiments, the filter assembly further includes: a fluid cyclone element, which is located in the filter channel, the fluid cyclone element is connected to the filter pipe, and the fluid cyclone element is located between the atomizing element and the filter outlet. After the waste material passes through the atomizing element, the waste material is mixed with the atomized liquid to form a mixture, and after the mixture passes through the fluid cyclone element, the fluid cyclone element mixes the waste material and the atomized liquid to form a gas cyclone. Under the action of centrifugal force, larger particles in the mixture settle to the wall of the filter pipe, reducing the discharge of particles in the waste material, improving the filtering effect, and reducing pollution to the environment.

[0012] In some embodiments, the fluid swirl element includes: a swirl pipe located in the filter channel, the swirl pipe is connected to the filter pipe, the swirl pipe has a swirl inlet, a swirl outlet and a swirl channel, the swirl inlet and the swirl outlet are both connected to the swirl channel, the swirl inlet and the swirl outlet are both connected to the filter channel, the swirl inlet is located between the filter inlet and the swirl outlet, and the swirl outlet is located between the swirl inlet and the filter outlet; a cyclone located in the swirl channel, the cyclone is connected to the swirl pipe. The swirl pipe is provided for installing the cyclone, and the swirl pipe has more connection points with the filter pipe, thereby improving the stability of the fluid swirl element.

[0013] In some embodiments, the filter channel extends along a first direction, and the cyclone includes: a support rod, which is located in the cyclone channel, the support rod is connected to the cyclone pipe, and the extension direction of the support rod is perpendicular to the first direction; a rotating shaft, which extends along the first direction, the rotating shaft is located in the cyclone channel, and one end of the rotating shaft is connected to the support rod; a fan blade, which is located in the cyclone channel, and the fan blade is rotatably connected to the other end of the rotating shaft. The cyclone is configured in the form of a combination of a support rod, a rotating shaft and a fan blade, and the waste material and the atomized liquid are mixed during the rotation of the fan blade. At the same time, the rotation of the fan blade generates centrifugal force to make the mixture formed by the waste material and the atomized liquid become a gas cyclone. The rotation of the fan blade can also generate centrifugal force, so that the larger particles in the mixture settle to the wall of the filter pipe under the action of gravity. This structure retains the function of the cyclone, and the structure is simple, which simplifies the structure of the cyclone.

[0014] In some embodiments, the inner wall of the filter pipe has a groove, and the groove is located between the atomizing element and the filter outlet. After the waste material passes through the atomizing element, the waste material is mixed with the atomized liquid to form a mixture, and the weight of the larger particles in the mixture increases. Under the action of gravity, the larger particles settle to the wall of the filter pipe, and some particles flow to the groove, reducing the possibility of particles blocking the filter channel.

[0015] In some embodiments, the groove is located on the side of the atomizing hole away from the input pipe. After the filter assembly is installed, the atomizer is generally set at the upper position of the entire filter channel with the direction of gravity as a reference. After the atomized liquid is sprayed out from the atomizing hole, the atomized liquid moves downward under the action of gravity, so that the atomized liquid is more evenly distributed in the filter channel. The groove is set on the side of the atomizing hole away from the input pipe, so that the groove is located at the lower position of the entire filter channel, and the particles are more likely to flow into the groove under the action of gravity.

[0016] In some embodiments, when the filter assembly includes a fluid cyclone element, the groove is located between the fluid cyclone element and the filter outlet. The centrifugal force generated by the fluid cyclone element can cause larger particles in the mixture to settle to the wall of the filter pipe. The groove is arranged on the side of the fluid cyclone element close to the filter outlet, so that more particles flow to the groove, reducing the possibility of particles blocking the filter channel.

[0017] In some embodiments, the filter assembly further includes: a second filter screen, located in the filter channel, the second filter screen is connected to the filter pipe, and the second filter screen is located on the side of the atomizing element close to the filter inlet. The second filter screen can filter particulate matter in the waste material, reducing the possibility of particulate matter entering the filter channel and blocking the filter channel. At the same time, the second filter screen can reduce the possibility of toxic particulate matter being discharged, reducing the incidence of safety accidents.

[0018] In some embodiments, when the atomizing element includes a first filter, the mesh number of the second filter is smaller than the mesh number of the first filter. The waste material first passes through the second filter and then through the first filter. Through the above arrangement, after the waste material is filtered by the second filter, it can still be filtered by the first filter, thereby improving the filtering effect of the filter assembly.

[0019] In some embodiments, the filter assembly further includes: a pressure valve located in the filter channel, the pressure valve is connected to the filter pipe, and the pressure valve is located on the side of the atomizing element close to the filter outlet. When waste material enters the filter channel, the pressure of the filter channel will increase. When the pressure of the filter channel increases to a critical value, the pressure valve automatically opens to discharge the waste material. When the waste material can be discharged smoothly, the connection between the external environment and the filter channel is reduced, that is, the impact of the external environment on the filter assembly is reduced.

[0020] In some embodiments, when the filter assembly includes a fluid cyclone element, the pressure valve is located between the fluid cyclone element and the filter outlet. The fluid cyclone element also needs to process waste materials, and the pressure valve will block the speed of the waste materials. The pressure valve is set on the side of the fluid cyclone element close to the filter outlet to reduce the influence of the pressure valve on the speed of the waste materials, thereby improving the effect of the fluid cyclone element on the waste material processing.

[0021] An embodiment of the second aspect of the present application provides an electrical device, which includes a battery according to any one of the above embodiments, and the battery is used to provide electrical energy.

[0022] An embodiment of the third aspect of the present application provides an energy storage device, the energy storage device comprising a battery according to any one of the above embodiments, the battery being used to store electrical energy.

[0023] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0025] Figure 1 A schematic diagram of the structure of a vehicle provided in some embodiments of the present application;

[0026] Figure 2 An exploded view of a battery provided for some embodiments of the present application;

[0027] Figure 3 Partial schematic diagram of a battery provided for some other embodiments of the present application;

[0028] Figure 4 A partial enlarged schematic diagram of a box provided in some other embodiments of the present application;

[0029] Figure 5 A partially enlarged schematic diagram of a battery provided in some other embodiments of the present application;

[0030] Figure 6 A schematic diagram of the structure of a filter assembly provided in an embodiment of the present application;

[0031] Figure 7 A schematic diagram of an exploded structure of a filter assembly provided in an embodiment of the present application;

[0032] Figure 8 A top view of a filter assembly provided in an embodiment of the present application;

[0033] Fig. 9 for Figure 8 Schematic diagram of the cross section of the AA surface;

[0034] Fig.10 for Fig. 9 A magnified view of the atomizing element;

[0035] Fig.11 for Fig.10 Cross-section of the middle BB surface;

[0036] Fig.12 for Fig.10 Cross-sectional view of the CC plane.

[0037] Description of reference numerals:

[0038] 1000, vehicle; 100, battery; 200, controller; 300, motor; 10, housing; 11, accommodating chamber; 12, pressure relief port; 20, battery cell; 13, first part; 14, second part; 15, thermal management component; 16, pressure relief valve; 30, filter assembly; 31, filter pipe; 311, filter inlet; 312, filter outlet; 313, filter channel; 314, groove; 32, atomizing element; 321, atomizer; 3211, Atomization hole; 322, input pipe; 323, atomization pipe; 3231, atomization inlet; 3232, atomization outlet; 3233, atomization channel; 324, first filter; 33, fluid swirl element; 331, swirl pipe; 3311, swirl inlet; 3312, swirl outlet; 3313, swirl channel; 332, cyclone; 3321, support rod; 3322, rotating shaft; 3323, fan blade; 34, second filter; 35, pressure valve. DETAILED DESCRIPTION

[0039] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0041] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0042] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0043] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0044] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0045] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of 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 embodiments of the present application.

[0046] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0047] At present, from the perspective of market development, the application of rechargeable batteries is becoming more and more extensive. Rechargeable batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in various electronic devices, such as electric bicycles, electric motorcycles, electric vehicles and other electric vehicles, as well as military equipment and aerospace and other fields. With the continuous expansion of the application field of rechargeable batteries, the market demand is also constantly expanding.

[0048] The battery includes a box body and a battery cell. The box body has a storage cavity and a pressure relief port. The pressure relief port connects the storage cavity with the external environment. The pressure relief port is generally provided with a pressure relief valve. When the pressure in the storage cavity reaches a critical value, the pressure relief valve automatically opens to release the pressure in the storage cavity. In the case of thermal runaway of the battery, the battery cell will quickly release a large amount of gas, which is mixed with particulate matter. The particulate matter may contain toxic or harmful substances. The gas mixed with particulate matter is directly discharged into the air, which can easily cause environmental pollution and even cause safety accidents.

[0049] An embodiment of the present application provides a battery, the battery includes a housing, a battery cell and a filter assembly, the housing has a receiving chamber and a pressure relief port, the battery cell is located in the receiving chamber, and the pressure relief port is connected to the receiving chamber. The filter assembly is connected to the housing, the filter assembly is connected to the pressure relief port, and the filter assembly is at least configured to reduce the concentration of particulate matter of the material discharged from the receiving chamber through a liquid. The pressure relief port is connected to the filter assembly, and the waste material needs to be discharged through the filter assembly. The filter assembly can reduce the concentration of particulate matter of the waste material, and the subsequent particulate matter discharged into the air is reduced, reducing pollution to the environment and reducing the possibility of safety accidents. In addition, when the battery is under thermal runaway, the temperature of the waste material discharged is high, which is easy to cause scalding or burning accidents. The liquid in the filter assembly can reduce the temperature of the waste material. When the temperature of the waste material is reduced, the probability of causing scalding or burning accidents is reduced, and the possibility of safety accidents is reduced.

[0050] The battery disclosed in the embodiment of the present application can be used, but not limited to, in an electric device or energy storage device such as a vehicle, a ship or an aircraft. The battery disclosed in the present application can be used to form a power supply system of the electric device or energy storage device to reduce the probability of safety accidents.

[0051] The embodiment of the present application provides an electric device using a battery as a power source, and the electric device may be, but is not limited to, a mobile phone, a tablet, a laptop, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft, etc. Among them, the electric toy may include a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, and an electric airplane toy, etc., and the spacecraft may include an airplane, a rocket, a space shuttle, and a spacecraft, etc.

[0052] An embodiment of the present application also provides an energy storage device that uses a battery as a power source. The energy storage device may be, but is not limited to, an energy storage container, an energy storage cabinet, an energy storage power station, an energy storage battery pack, or a portable energy storage system.

[0053] For the convenience of description, the following embodiments are described by taking a vehicle 1000 as an example of an electrical device according to an embodiment of the present application.

[0054] Please refer to Figure 1 , Figure 1 A schematic diagram of the structure of a vehicle provided for some embodiments of the present application. Vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 100 is provided inside the vehicle 1000, and the battery 100 may be provided at the bottom, head or tail of the vehicle 1000. The battery 100 may be used to power the vehicle 1000, for example, the battery 100 may be used as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300, and the controller 200 is used to control the battery 100 to power the motor 300, for example, for starting, navigating and driving the vehicle 1000.

[0055] In some embodiments of the present application, the battery 100 can not only serve as an operating power source for the vehicle 1000, but also serve as a driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0056] The present application embodiment provides a battery, Figure 2 An exploded view of a battery provided in some embodiments of the present application. Figure 2 The battery 100 includes a box body 10 and a battery cell 20 . The box body 10 has a receiving cavity 11 . The battery cell 20 is located in the receiving cavity 11 .

[0057] Figure 3 Partial schematic diagram of a battery provided in some other embodiments of the present application. Figure 3 The box body 10 also has a pressure relief port 12, combined with Figure 2 and Figure 3 The pressure relief port 12 is in communication with the accommodation chamber 11. The battery further includes a filter assembly 30, which is connected to the housing 10 and is in communication with the pressure relief port 12, wherein the filter assembly 30 is at least configured to reduce the concentration of particulate matter discharged from the accommodation chamber 11 through liquid.

[0058] Figure 4 This is a partial enlarged schematic diagram of a box provided in some other embodiments of the present application. Figure 4 The box body 10 includes a pressure relief valve 16 , which is located at the pressure relief port 12 .

[0059] See also Figure 2 The box 10 is used to provide a storage space for the battery cell 20, and the box 10 can adopt a variety of structures. In some embodiments, the box 10 may include a first part 13 and a second part 14, the first part 13 and the second part 14 cover each other, and the first part 13 and the second part 14 jointly define a storage space for accommodating the battery cell 20. The second part 14 can be a hollow structure with one end open, and the first part 13 can be a plate-like structure, and the first part 13 covers the open side of the second part 14, so that the first part 13 and the second part 14 jointly define a storage space; the first part 13 and the second part 14 can also be hollow structures with one side open, and the open side of the first part 13 covers the open side of the second part 14. Of course, the box 10 formed by the first part 13 and the second part 14 can be a variety of shapes, such as a cylinder, a cuboid, etc.

[0060] In the battery 100, there may be multiple battery cells 20, and the multiple battery cells 20 may be connected in series, in parallel, or in a mixed connection. A mixed connection means that the multiple battery cells 20 are both connected in series and in parallel. The multiple battery cells 20 may be directly connected in series, in parallel, or in a mixed connection, and then the whole formed by the multiple battery cells 20 is accommodated in the box 10; of course, the battery 100 may also be in the form of a battery module formed by connecting multiple battery cells 20 in series, in parallel, or in a mixed connection, and then the multiple battery modules are connected in series, in parallel, or in a mixed connection to form a whole, and accommodated in the box 10. The battery 100 may also include other structures, for example, the battery 100 may also include a busbar component for realizing electrical connection between the multiple battery cells 20.

[0061] Each battery cell 20 may be a secondary battery or a primary battery, or a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 20 may be cylindrical, flat, rectangular, or in other shapes.

[0062] The box body 10 can be made of a material with a certain hardness and strength (such as aluminum alloy), so that the box body 10 is not easily deformed when squeezed or collided, so that the battery can have a higher structural strength and the safety performance can also be improved.

[0063] See also Figure 3 The housing 10 may further include a heat management component 15, combined with Figure 2 and Figure 3 The thermal management component 15 is located in the accommodating cavity 11, and the battery cell 20 contacts the thermal management component 15. The thermal management component 15 is used to adjust the temperature of the battery cell 20 so that the battery cell 20 can work at a suitable temperature. For example, the thermal management component 15 can be a liquid cooling plate.

[0064] In the embodiment of the present application, the pressure relief valve 16 is used to release the internal pressure when the internal pressure or temperature of the accommodating chamber 11 reaches a threshold value. Figure 4 In the embodiment, the cross-section of the pressure relief port 12 is a rounded rectangle. In other embodiments, the cross-section of the pressure relief port 12 may be other shapes. For example, the cross-section of the pressure relief port 12 may be a circle, or the cross-section of the pressure relief port 12 may be a triangle, or any other regular or irregular shape.

[0065] Figure 5 A partial enlarged schematic diagram of a battery provided in some other embodiments of the present application. Figures 3 to 5 , the filter assembly 30 is connected to the pressure relief port 12, and the filter assembly 30 has a filtering function. The substances discharged from the accommodating chamber 11 first pass through the pressure relief port 12, and then are filtered by the filter assembly 30 before being discharged, that is, the filter assembly 30 can filter the substances discharged from the accommodating chamber 11. Exemplarily, the substances discharged from the accommodating chamber 11 can be gas, a mixture of gas and liquid, a mixture of gas and solid, or a mixture of gas, liquid and solid. For the convenience of explanation, the substances discharged from the accommodating chamber 11 are collectively referred to as waste substances below. In the case where the waste substances include solids, the filter assembly 30 can reduce the concentration of particulate matter in the waste substances.

[0066] Exemplarily, the filter assembly 30 may include a filter mesh, activated carbon, filter cotton, or the like.

[0067] Exemplarily, there is liquid in the filter assembly 30 , and when the waste matter passes through the filter assembly 30 , the waste matter comes into contact with the liquid.

[0068] In the event of thermal runaway of the battery, the waste materials are likely to be mixed with harmful solid particles. Direct discharge of the waste materials can easily cause environmental pollution and lead to safety accidents.

[0069] In the embodiment of the present application, the pressure relief port 12 is connected to the filter assembly 30, and the waste material needs to be discharged through the filter assembly 30. The filter assembly 30 can reduce the concentration of particles in the waste material, and the subsequent particles discharged into the air are reduced, which reduces the pollution to the environment and reduces the possibility of safety accidents. In addition, when the battery is under thermal runaway, the temperature of the waste material discharged is high, which is easy to cause scalding or burning accidents. The liquid in the filter assembly 30 can reduce the temperature of the waste material. When the temperature of the waste material is reduced, the probability of causing scalding or burning accidents is reduced, and the possibility of safety accidents is reduced.

[0070] In the embodiment of the present application, the particles in the waste material are easily deposited in the filter assembly 30 with the liquid after contacting with the liquid, thereby reducing the concentration of particles in the waste material. At the same time, some of the toxic and harmful gases in the waste material will also be deposited in the filter assembly 30 after contacting with the liquid, thereby reducing the possibility of toxic and harmful gases being discharged and the probability of safety accidents. After the waste material contacts with the liquid, the waste material and the liquid exchange heat, the temperature of the waste material decreases, the probability of causing scalds or burns is reduced, and the possibility of safety accidents is reduced.

[0071] In the embodiments of the present application, the liquid may be water or a coolant, etc.

[0072] In the related art, the temperature of the gas released by the battery cell during thermal runaway is relatively high, and the gas will rapidly increase the pressure in the accommodation chamber, causing the high-temperature thermal runaway gas to rapidly eject from the pressure relief valve, which can easily cause safety accidents. Before the battery has a thermal runaway accident, the temperature of the battery cell 20 has already risen, and the temperature of the battery cell 20 will be reduced through the thermal management component 15. Liquids such as water or coolant are input into the flow channel of the thermal management component 15. The liquid can also be transported to the filter assembly 30. The filter assembly 30 uses the liquid to reduce the particle concentration and temperature of the material discharged from the accommodation chamber 11. No other components need to be set up, saving materials and reducing costs.

[0073] In the embodiment of the present application, the filter assembly 30 can filter the waste materials, and can also reduce the emission of toxic and harmful gases and reduce the accident rate.

[0074] According to some embodiments of the present application, Figure 6 A schematic diagram of the structure of a filter assembly provided in an embodiment of the present application. Figure 3 , Figure 5 and Figure 6 The filter assembly 30 includes a filter pipe 31, which has a filter inlet 311, a filter outlet 312 and a filter channel 313. The filter inlet 311 and the filter outlet 312 are both connected to the filter channel 313, the filter inlet 311 is connected to the pressure relief port 12, and the filter outlet 312 is connected to the environment outside the accommodating chamber 11.

[0075] Figure 7 A schematic diagram of the exploded structure of a filter assembly provided in an embodiment of the present application. Figure 6 and Figure 7 The filter assembly 30 also includes an atomizing element 32 , and the atomizing element 32 is located in the filter channel 313 .

[0076] Figure 8 A top view of a filter assembly provided in an embodiment of the present application. Fig. 9 for Figure 8Schematic diagram of the cross section of the AA surface. Figures 7 to 9 The atomizing element 32 is communicated with the filtering pipe 31 , and the atomizing element 32 is configured to input liquid into the filtering channel 313 .

[0077] In the embodiment of the present application, the filter pipe 31 can be a straight pipe or a curved pipe, and the shape of the filter channel 313 can be the same as or different from the shape of the filter pipe 31. Exemplarily, the filter pipe 31 is a straight cylindrical pipe, and the filter channel 313 is also cylindrical.

[0078] In the embodiment of the present application, the filter inlet 311 and the filter outlet 312 are respectively located at two ends of the filter channel 313 .

[0079] In the embodiment of the present application, the shape of the filter inlet 311 may be the same as or different from the shape of the filter outlet 312. For example, the shape of the filter inlet 311 is circular, the shape of the filter outlet 312 is rectangular, or the shape of the filter inlet 311 and the shape of the filter outlet 312 are both circular.

[0080] In the embodiment of the present application, the shape of the filter inlet 311 and the shape of the pressure relief port 12 may be the same or different. For example, the shape of the filter inlet 311 is circular, the shape of the pressure relief port 12 is rectangular, or the shape of the filter inlet 311 and the shape of the pressure relief port 12 are both rounded rectangles.

[0081] In the embodiment of the present application, the atomizing element 32 is a device or component that can convert liquid into tiny droplets or mist. The atomizing element 32 is located in the filter channel 313, and the liquid converted into tiny droplets or mist by the atomizing element 32 is dispersed into the filter channel 313.

[0082] In an embodiment of the present application, the atomizing element 32 is connected to a component in the battery containing coolant, so that the liquid is input into the filter channel 313 through the atomizing element 32. For example, when the battery is used in an electric device such as a car, the atomizing element 32 can be connected to a cooling box in the car.

[0083] Exemplarily, the power of the atomizing element 32 can be provided by external water pressure, and the coolant inlet of the battery can be made into a three-way valve. The end of the three-way valve connected to the atomizing element 32 is provided with a multifunctional valve module. When the battery does not have thermal runaway, the flow rate and flow velocity of the coolant are below the threshold of breaking through the multifunctional valve module. The BMS (Battery Management System) inside the battery pack has an early warning function for monitoring thermal runaway. When the battery has thermal runaway, the change in the temperature rise rate of the battery cell or the voltage reduction rate of the battery cell is converted into a signal of receiving thermal runaway and transmitted to the BMS. The BMS increases the flow rate and flow velocity of the coolant, the multifunctional valve module is broken, and the coolant enters the atomizing element 32 for atomization.

[0084] In an embodiment of the present application, in the event of thermal runaway of the battery, waste matter enters the filter channel 313 through the filter inlet 311, and the atomizing element 32 converts the liquid into tiny droplets or mist and disperses it into the filter channel 313. The waste matter is more likely to come into contact with the tiny droplets or mist. During the contact process, the particle concentration and temperature of the waste matter are reduced, which increases the contact area between the waste matter and the liquid, improves the efficiency of reducing the particle concentration and temperature of the waste matter, and improves the filtering effect of the filter assembly 30.

[0085] Exemplarily, the atomizing element 32 may be any one of a piezoelectric atomizing element, an ultrasonic atomizing element, a nozzle atomizing element, a heating atomizing element, a centrifugal atomizing element, a microporous atomizing element, and an electrostatic atomizing element.

[0086] In the embodiment of the present application, the filter inlet 311 of the filter pipe 31 is directly connected to the pressure relief port 12, saving the cost of adding an additional ventilation pipe.

[0087] According to some embodiments of the present application, Fig.10 for Fig. 9 A magnified view of the atomizing element. Fig. 9 and Fig.10 The atomizing element 32 includes an atomizer 321 and an input pipe 322. The atomizer 321 is located in the filtering channel 313, the atomizer 321 is connected to the filtering pipe 31, and the input pipe 322 penetrates the side wall of the filtering pipe 31 and is connected to the atomizer 321. Fig.11 for Fig.10 Cross-sectional view of the BB plane. Fig.12 for Fig.10 Cross-section of the CC plane. Fig.11 and Fig.12 The atomizer 321 has a plurality of atomization holes 3211 spaced apart from each other, and the input pipe 322 is connected to the atomization holes 3211 .

[0088] In the embodiment of the present application, the atomizer 321 is a device for atomizing liquid in the atomizing element 32 , and the input pipe 322 is used to transport liquid to the atomizing element 32 .

[0089] The connection between the atomizer 321 and the filter pipe 31 improves the stability of the atomizer 321 in the filter channel 313. The input pipe 322 penetrates the side wall of the filter pipe 31 and is connected to the atomizer 321, so that the input pipe 322 can be connected to an external device for containing liquid.

[0090] In the embodiment of the present application, the atomized liquid is sprayed out from the plurality of atomization holes 3211 , and is thus dispersed into the filter channel 313 .

[0091] In an embodiment of the present application, in the event of thermal runaway of the battery, waste material enters the filter channel 313, and the input pipe 322 inputs liquid into the atomizer 321. The atomizer 321 atomizes the liquid and sprays the atomized liquid out from the multiple atomization holes 3211. The atomized liquid can be more evenly distributed into the filter channel 313 through the multiple atomization holes 3211, thereby increasing the possibility of contact between the waste material and the atomized liquid, improving the efficiency of reducing the concentration and temperature of the waste material particles, and improving the filtering effect of the filter assembly 30.

[0092] According to some embodiments of the present application, Figures 9 to 12 The atomizing element 32 further includes an atomizing pipe 323, which is located in the filtering channel 313 and connected to the filtering channel 31. The atomizing pipe 323 has an atomizing inlet 3231, an atomizing outlet 3232 and an atomizing channel 3233. The atomizing inlet 3231 and the atomizing outlet 3232 are both connected to the atomizing channel 3233. The atomizing inlet 3231 and the atomizing outlet 3232 are both connected to the filtering channel 313. The atomizing inlet 3231 is located between the filtering inlet 311 and the atomizing outlet 3232. The atomizing outlet 3232 is located between the atomizing inlet 3231 and the filtering outlet 312. The atomizer 321 is located in the atomizing channel 3233 and connected to the atomizing pipe 323.

[0093] In the embodiment of the present application, the atomizer 321 is connected to the atomization pipe 323 , and the atomization pipe 323 is connected to the filtering pipe 31 , that is, the atomizer 321 is indirectly connected to the filtering pipe 31 through the atomization pipe 323 .

[0094] In the embodiment of the present application, the atomizing pipe 323 may be a straight pipe or a curved pipe, and the shape of the atomizing channel 3233 may be the same as or different from the shape of the atomizing pipe 323. For example, the atomizing pipe 323 is a straight cylindrical pipe, and the atomizing channel 3233 is also cylindrical.

[0095] In an embodiment of the present application, the outer wall of the atomization pipe 323 may be completely in contact with the inner wall of the filtering pipe 31; or the outer wall of the atomization pipe 323 may be partially in contact with the inner wall of the filtering pipe 31; or the outer wall of the atomization pipe 323 may not be in contact with the inner wall of the filtering pipe 31.

[0096] In the embodiment of the present application, the atomization inlet 3231 and the atomization outlet 3232 are respectively located at two ends of the atomization channel 3233 .

[0097] In the embodiment of the present application, the shape of the atomization inlet 3231 may be the same as or different from the shape of the atomization outlet 3232. For example, the shape of the atomization inlet 3231 is circular, the shape of the atomization outlet 3232 is rectangular, or the shape of the atomization inlet 3231 and the shape of the atomization outlet 3232 are both circular.

[0098] In an embodiment of the present application, waste matter enters the filter channel 313 through the filter inlet 311, enters the atomization channel 3233 through the atomization inlet 3231, is discharged through the atomization outlet 3232 and enters the filter channel 313 again, and is finally discharged through the filter outlet 312.

[0099] In the embodiment of the present application, an atomizing pipe 323 is provided for installing the atomizer 321 , and the atomizing pipe 323 has more connection points with the filtering pipe 31 , thereby improving the stability of the atomizing element 32 .

[0100] According to some embodiments of the present application, see Figure 7 , Fig. 9 and Fig.10 The atomizing element 32 further includes a first filter 324 , which is located in the atomizing channel 3233 , connected to the atomizing pipeline 323 , and located on one side of the atomizer 321 close to the atomizing inlet 3231 .

[0101] Exemplarily, the first filter screen 324 is located at the atomization inlet 3231 .

[0102] In an embodiment of the present application, the first filter 324 can filter particulate matter in the waste material. If toxic substances exist in the particulate matter, the first filter 324 can reduce the possibility of particulate matter discharge, reduce the occurrence rate of safety accidents, and improve the filtering effect of the filter component 30.

[0103] Exemplarily, the material of the first filter screen 324 is a corrosion-resistant and high-temperature-resistant material, for example, the material of the first filter screen 324 is aluminum or stainless steel.

[0104] According to some embodiments of the present application, see Figure 7 and Fig. 9 The filter assembly 30 further includes a fluid vortex element 33 , which is located in the filter channel 313 , connected to the filter pipe 31 , and located between the atomizing element 32 and the filter outlet 312 .

[0105] The fluid cyclone element 33 is a device that utilizes centrifugal force to separate components of different densities or particle sizes in the fluid.

[0106] In an embodiment of the present application, the waste material enters the filter channel 313 through the filter inlet 311, enters the atomization channel 3233 through the atomization inlet 3231, is discharged through the atomization outlet 3232 and enters the filter channel 313 again, flows through the fluid vortex element 33, and is finally discharged through the filter outlet 312.

[0107] In an embodiment of the present application, after the waste material passes through the atomizing element 32, the waste material is mixed with the atomized liquid to form a mixture. After the mixture passes through the fluid cyclone element 33, the fluid cyclone element 33 mixes the waste material and the atomized liquid to make them into a gas cyclone. Under the action of centrifugal force, larger particles in the mixture settle to the wall of the filter pipe 31, thereby reducing the discharge of particles in the waste material, improving the filtering effect, and reducing pollution to the environment.

[0108] According to some embodiments of the present application, see Fig. 9 The fluid swirl element 33 includes a swirl pipe 331 and a cyclone 332. The swirl pipe 331 is located in the filter channel 313 and is connected to the filter channel 31. The swirl pipe 331 has a swirl inlet 3311, a swirl outlet 3312 and a swirl channel 3313. The swirl inlet 3311 and the swirl outlet 3312 are both connected to the swirl channel 3313. The swirl inlet 3311 and the swirl outlet 3312 are both connected to the filter channel 313. The swirl inlet 3311 is located between the filter inlet 311 and the swirl outlet 3312. The swirl outlet 3312 is located between the swirl inlet 3311 and the filter outlet 312. The cyclone 332 is located in the swirl channel 3313 and is connected to the swirl pipe 331.

[0109] In some embodiments of the present application, the cyclone pipe 331 is directly connected to the filter pipe 31. In other embodiments of the present application, see Figure 7 and Fig. 9 The swirl pipe 331 is connected to the atomization pipe 323 , that is, the swirl pipe 331 is indirectly connected to the filtering pipe 31 through the atomization pipe 323 .

[0110] In the embodiment of the present application, the swirl pipe 331 can be a straight pipe or a curved pipe, and the shape of the swirl channel 3313 can be the same as or different from the shape of the swirl pipe 331. Exemplarily, the swirl pipe 331 is a straight cylindrical pipe, and the swirl channel 3313 is also cylindrical.

[0111] In an embodiment of the present application, the outer wall of the swirl duct 331 may be completely in contact with the inner wall of the filter duct 31; or the outer wall of the swirl duct 331 may be partially in contact with the inner wall of the filter duct 31; or the outer wall of the swirl duct 331 may not be in contact with the inner wall of the filter duct 31.

[0112] In the embodiment of the present application, the swirl inlet 3311 and the swirl outlet 3312 are respectively located at two ends of the swirl channel 3313 .

[0113] In the embodiment of the present application, the shape of the swirl inlet 3311 may be the same as or different from the shape of the swirl outlet 3312. For example, the shape of the swirl inlet 3311 is circular, the shape of the swirl outlet 3312 is rectangular, or the shape of the swirl inlet 3311 and the shape of the swirl outlet 3312 are both circular.

[0114] In an embodiment of the present application, the waste material enters the filter channel 313 through the filter inlet 311, enters the atomization channel 3233 through the atomization inlet 3231, is discharged through the atomization outlet 3232 and enters the swirl channel 3313 through the swirl inlet 3311, is discharged through the swirl outlet 3312 and enters the filter channel 313 again, and is finally discharged through the filter outlet 312.

[0115] In the embodiment of the present application, a cyclone pipe 331 is provided for installing the cyclone 332 , and the cyclone pipe 331 has more connection points with the filter pipe 31 , thereby improving the stability of the fluid cyclone element 33 .

[0116] According to some embodiments of the present application, see Fig. 9 , the filtering channel 313 extends along the first direction X, the cyclone 332 includes a support rod 3321, a rotating shaft 3322 and a fan blade 3323, the support rod 3321 is located in the cyclone channel 3313, the support rod 3321 is connected to the cyclone pipe 331, and the extension direction of the support rod 3321 is perpendicular to the first direction X. The rotating shaft 3322 extends along the first direction X, the rotating shaft 3322 is located in the cyclone channel 3313, and one end of the rotating shaft 3322 is connected to the support rod 3321. The fan blade 3323 is located in the cyclone channel 3313, and the fan blade 3323 is rotatably connected to the other end of the rotating shaft 3322.

[0117] In an embodiment of the present application, the support rod 3321 provides support for the rotating shaft 3322 and the fan blades 3323. The cyclone 332 may include multiple support rods 3321. The extension directions of the multiple support rods 3321 are perpendicular to the first direction X. The extension directions of the multiple support rods 3321 may be parallel to each other or intersect.

[0118] In an embodiment of the present application, the fan blade 3323 can be connected to the other end of the rotating shaft 3322 through a rotating bearing to achieve a rotatable connection between the fan blade 3323 and the rotating shaft 3322.

[0119] Exemplarily, the cyclone 332 may further include a driving member for driving the blades 3323 to rotate.

[0120] In the embodiment of the present application, the rotation center axis of the fan blade 3323 is parallel to the first direction X.

[0121] In the embodiment of the present application, the cyclone 332 is configured to be a combination of a support rod 3321, a rotating shaft 3322 and a fan blade 3323. During the rotation of the fan blade 3323, the waste material and the atomized liquid are mixed. At the same time, the rotation of the fan blade 3323 generates centrifugal force to make the mixture formed by the waste material and the atomized liquid become a gas cyclone. The rotation of the fan blade 3323 can also generate centrifugal force, so that the larger particles in the mixture settle to the wall of the filter pipe 31 under the action of gravity. This structure retains the function of the cyclone 332, and has a simple structure, which simplifies the structure of the cyclone 332.

[0122] According to some embodiments of the present application, see Figures 5 to 7 and Fig. 9 The inner wall of the filter pipe 31 has a groove 314 , and the groove 314 is located between the atomizing element 32 and the filter outlet 312 .

[0123] In the embodiment of the present application, the shape of the groove 314 is not limited.

[0124] In the embodiment of the present application, the outer wall of the filter pipe 31 corresponding to the groove 314 may or may not be protruding relative to the outer wall of other regions of the filter pipe 31. The groove 314 increases the cross-sectional area of ​​the filter pipe 31 at the groove 314.

[0125] In an embodiment of the present application, after the waste material passes through the atomizing element 32, the waste material is mixed with the atomized liquid to form a mixture, and the weight of the larger particles in the mixture increases. Under the action of gravity, the larger particles settle to the wall of the filter pipe 31, and some particles flow to the groove 314, reducing the possibility of particles clogging the filter channel 313.

[0126] According to some embodiments of the present application, see Fig. 9When the atomizing element 32 includes an atomizer 321 , the groove 314 is located on a side of the atomizing hole 3211 away from the input pipe 322 .

[0127] Exemplarily, with the center line of the filter pipe 31 as the axis, the groove 314 and the atomization hole 3211 are respectively located on opposite sides of the center line.

[0128] In the embodiment of the present application, the input pipe 322 is connected to the atomization hole 3211, and the input pipe 322 and the atomization hole 3211 are located on the same side of the center line.

[0129] In the embodiment of the present application, after the filter assembly 30 is installed, the atomizer 321 is generally set at a position above the entire filter channel 313 with the direction of gravity as a reference. After the atomized liquid is sprayed from the atomization hole 3211, the atomized liquid moves downward under the action of gravity, so that the atomized liquid is more evenly distributed in the filter channel 313. The groove 314 is set on the side of the atomization hole 3211 away from the input pipe 322, so that the groove 314 is located at a position below the entire filter channel 313, and the particles are more likely to flow into the groove 314 under the action of gravity.

[0130] For example, Fig. 9 For example, the atomizer 321 is located at an upper position of the entire filter channel 313 , and the groove 314 is located at a lower position of the entire filter channel 313 .

[0131] The direction of gravity intersects with the ground where the battery is located, and an angle between the direction of gravity and the ground is greater than or equal to 80° and less than or equal to 90°.

[0132] According to some embodiments of the present application, see Fig. 9 In the case where the filter assembly 30 includes the fluid cyclone element 33 , the groove 314 is located between the fluid cyclone element 33 and the filter outlet 312 .

[0133] In the embodiment of the present application, along the first direction X, the atomizing element 32 , the fluid swirl element 33 and the groove 314 are sequentially arranged adjacent to each other.

[0134] In an embodiment of the present application, the centrifugal force generated by the fluid vortex element 33 can cause larger particles in the mixture to settle to the wall of the filter pipe 31. The groove 314 is arranged on the side of the fluid vortex element 33 close to the filter outlet 312, so that more particles flow to the groove 314, reducing the possibility of particles clogging the filter channel 313.

[0135] According to some embodiments of the present application, see Figure 6 and Figure 7The filter assembly 30 further includes a second filter screen 34 , which is located in the filter channel 313 , connected to the filter pipe 31 , and located on a side of the atomizing element 32 close to the filter inlet 311 .

[0136] Exemplarily, the second filter screen 34 may be located at the filter inlet 311 .

[0137] In the embodiment of the present application, the second filter 34 can perform preliminary filtration on particles in the waste material, reducing the possibility of particles entering the filter channel 313 and blocking the filter channel 313. At the same time, the second filter 34 can reduce the possibility of toxic particles being discharged and reduce the incidence of safety accidents.

[0138] Exemplarily, the material of the second filter screen 34 is a corrosion-resistant and high-temperature-resistant material, for example, the material of the second filter screen 34 is aluminum or stainless steel.

[0139] According to some embodiments of the present application, when the atomizing element 32 includes the first filter 324 , the mesh number of the second filter 34 is smaller than the mesh number of the first filter 324 .

[0140] Mesh number is a unit used to describe the size of the pore size of the filter, usually indicating the number of holes per inch. The higher the mesh number, the smaller the pore size and the higher the filtering accuracy. The mesh number of the second filter 34 is smaller than the mesh number of the first filter 324, that is, the pore size of the first filter 324 is smaller than the pore size of the second filter 34, and the filtering accuracy of the first filter 324 is higher.

[0141] In an embodiment of the present application, the waste material first passes through the second filter 34 and then passes through the first filter 324. Since the mesh number of the second filter 34 is smaller than the mesh number of the first filter 324, the waste material can still be filtered by the first filter 324 after being filtered by the second filter 34, thereby improving the filtering effect of the filter component 30.

[0142] According to some embodiments of the present application, see Figure 7 The filter assembly 30 further includes a pressure valve 35 , which is located in the filter channel 313 , connected to the filter pipe 31 , and located on a side of the atomizing element 32 close to the filter outlet 312 .

[0143] exist Figure 7 In the figure, the pressure valve 35 is only a schematic diagram, and the pressure valve 35 in the embodiment of the present application is not limited to this shape.

[0144] In the embodiment of the present application, when waste matter enters the filter channel 313, the pressure of the filter channel 313 will increase. When the pressure of the filter channel 313 increases to a critical value, the pressure valve 35 automatically opens to discharge the waste matter. When the waste matter can be discharged smoothly, the connection between the external environment and the filter channel 313 is reduced, that is, the influence of the external environment on the filter component 30 is reduced.

[0145] According to some embodiments of the present application, see Figure 7 In the case where the filter assembly 30 includes the fluid cyclone element 33 , the pressure valve 35 is located between the fluid cyclone element 33 and the filter outlet 312 .

[0146] In an embodiment of the present application, the fluid vortex element 33 also needs to process waste materials, and the pressure valve 35 will block the speed of the waste materials. The pressure valve 35 is set to the side of the fluid vortex element 33 close to the filter outlet 312 to reduce the influence of the pressure valve 35 on the speed of the waste materials, thereby improving the effect of the fluid vortex element 33 on the treatment of waste materials.

[0147] According to some embodiments of the present application, see Fig. 9 When the inner wall of the filter pipe 31 has a groove 314 , the pressure valve 35 is located between the groove 314 and the filter outlet 312 .

[0148] An embodiment of the present application provides an electrical device, which includes a battery according to any one of the above embodiments, and the battery is used to provide electrical energy.

[0149] An embodiment of the present application provides an energy storage device, which includes a battery according to any one of the above embodiments, and the battery is used to store electrical energy.

[0150] The embodiment of the present application provides a battery, wherein the battery 100 includes a housing 10 and a battery cell 20, wherein the housing 10 has a receiving chamber 11, and the battery cell 20 is located in the receiving chamber 11. The housing 10 also has a pressure relief port 12, which is in communication with the receiving chamber 11, and the housing 10 includes a pressure relief valve 16, which is located at the pressure relief port 12. The battery also includes a filter assembly 30, which is connected to the housing 10 and in communication with the pressure relief port 12, wherein the filter assembly 30 is at least configured to reduce the concentration of particulate matter of a substance discharged from the receiving chamber 11 by means of a liquid.

[0151] The filter assembly 30 includes a filter pipe 31, which has a filter inlet 311, a filter outlet 312 and a filter channel 313. The filter inlet 311 and the filter outlet 312 are both connected to the filter channel 313. The filter inlet 311 is connected to the pressure relief port 12, and the filter outlet 312 is connected to the environment outside the accommodating chamber 11. The filter assembly 30 also includes an atomizing element 32, which is located in the filter channel 313, the atomizing element 32 is connected to the filter pipe 31, and the atomizing element 32 is configured to input liquid into the filter channel 313.

[0152] The atomizing element 32 includes an atomizer 321 and an input pipe 322. The atomizer 321 is located in the filtering channel 313, and is connected to the filtering pipe 31. The input pipe 322 penetrates the side wall of the filtering pipe 31 and is connected to the atomizer 321. The atomizer 321 has a plurality of atomizing holes 3211 spaced apart from each other, and the input pipe 322 is in communication with the atomizing holes 3211.

[0153] The atomizing element 32 further includes an atomizing pipe 323, which is located in the filtering channel 313 and connected to the filtering channel 31. The atomizing pipe 323 has an atomizing inlet 3231, an atomizing outlet 3232 and an atomizing channel 3233. The atomizing inlet 3231 and the atomizing outlet 3232 are both connected to the atomizing channel 3233. The atomizing inlet 3231 and the atomizing outlet 3232 are both connected to the filtering channel 313. The atomizing inlet 3231 is located between the filtering inlet 311 and the atomizing outlet 3232. The atomizing outlet 3232 is located between the atomizing inlet 3231 and the filtering outlet 312. The atomizer 321 is located in the atomizing channel 3233 and connected to the atomizing pipe 323. The atomizing element 32 further includes a first filter 324, which is located in the atomizing channel 3233, connected to the atomizing pipe 323, and located on a side of the atomizer 321 close to the atomizing inlet 3231. The filtering assembly 30 further includes a fluid swirl element 33, which is located in the filtering channel 313, connected to the filtering pipe 31, and located between the atomizing element 32 and the filtering outlet 312.

[0154] The fluid swirl element 33 includes a swirl pipe 331 and a cyclone 332. The swirl pipe 331 is located in the filter channel 313 and is connected to the filter pipe 31. The swirl pipe 331 has a swirl inlet 3311, a swirl outlet 3312 and a swirl channel 3313. The swirl inlet 3311 and the swirl outlet 3312 are both connected to the swirl channel 3313. The swirl inlet 3311 and the swirl outlet 3312 are both connected to the filter channel 313. The swirl inlet 3311 is located between the filter inlet 311 and the swirl outlet 3312. The swirl outlet 3312 is located between the swirl inlet 3311 and the filter outlet 312. The cyclone 332 is located in the swirl channel 3313 and is connected to the swirl pipe 331.

[0155] The filter channel 313 extends along the first direction X, and the cyclone 332 includes a support rod 3321, a rotating shaft 3322, and a fan blade 3323. The support rod 3321 is located in the cyclone channel 3313, and the support rod 3321 is connected to the cyclone pipe 331. The extension direction of the support rod 3321 is perpendicular to the first direction X. The rotating shaft 3322 extends along the first direction X, and the rotating shaft 3322 is located in the cyclone channel 3313. One end of the rotating shaft 3322 is connected to the support rod 3321. The fan blade 3323 is located in the cyclone channel 3313, and the fan blade 3323 is rotatably connected to the other end of the rotating shaft 3322.

[0156] The inner wall of the filter pipe 31 has a groove 314 . The groove 314 is located on a side of the atomization hole 3211 away from the input pipe 322 . The groove 314 is located between the fluid cyclone element 33 and the filter outlet 312 .

[0157] The filter assembly 30 further includes a second filter 34, which is located in the filter channel 313, connected to the filter pipe 31, and located on a side of the atomizing element 32 close to the filter inlet 311. The mesh number of the second filter 34 is smaller than that of the first filter 324.

[0158] The filter assembly 30 further includes a pressure valve 35 . The pressure valve 35 is located in the filter channel 313 . The pressure valve 35 is connected to the filter pipe 31 . The pressure valve 35 is located between the groove 314 and the filter outlet 312 .

[0159] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A battery, characterized in that: The battery comprises: A box body (10) having a containing chamber (11) and a pressure relief port (12), wherein the pressure relief port (12) is in communication with the containing chamber (11), and the box body (10) comprises a pressure relief valve (16), wherein the pressure relief valve (16) is located at the pressure relief port (12); A battery cell (20) located in the accommodating cavity (11); A filter assembly (30) connected to the housing (10), the filter assembly (30) being in communication with the pressure relief port (12); The filter assembly (30) is at least configured to reduce the concentration of particulate matter in the substance discharged from the containing chamber (11) through liquid.

2. The battery according to claim 1, characterized in that The filtering assembly (30) comprises: A filter pipe (31) having a filter inlet (311), a filter outlet (312) and a filter channel (313), wherein the filter inlet (311) and the filter outlet (312) are both in communication with the filter channel (313), the filter inlet (311) is in communication with the pressure relief port (12), and the filter outlet (312) is in communication with the environment outside the accommodating chamber (11); An atomizing element (32) is located in the filtering channel (313); the atomizing element (32) is in communication with the filtering pipe (31); and the atomizing element (32) is configured to be able to input liquid into the filtering channel (313).

3. The battery according to claim 2, characterized in that The atomizing element (32) comprises: an atomizer (321), located in the filtering channel (313), the atomizer (321) being connected to the filtering pipe (31), the atomizer (321) having a plurality of atomization holes (3211) spaced apart from each other; An input pipe (322), the input pipe (322) passes through the side wall of the filtering pipe (31) and is connected to the atomizer (321), and the input pipe (322) is in communication with the atomization hole (3211).

4. The battery according to claim 3, characterized in that The atomizing element (32) further comprises: an atomization pipeline (323) located in the filtering channel (313); the atomization pipeline (323) is connected to the filtering channel (31); the atomization pipeline (323) comprises an atomization inlet (3231), an atomization outlet (3232) and an atomization channel (3233); the atomization inlet (3231) and the atomization outlet (3232) are both in communication with the atomization channel (3233); the atomization inlet (3231) and the atomization outlet (3232) are both in communication with the filtering channel (313); the atomization inlet (3231) is located between the filtering inlet (311) and the atomization outlet (3232); and the atomization outlet (3232) is located between the atomization inlet (3231) and the filtering outlet (312); Wherein, the atomizer (321) is located in the atomization channel (3233), and the atomizer (321) is connected to the atomization pipeline (323).

5. The battery according to claim 4, characterized in that The atomizing element (32) further comprises: The first filter screen (324) is located in the atomization channel (3233); the first filter screen (324) is connected to the atomization pipeline (323); the first filter screen (324) is located on a side of the atomizer (321) close to the atomization inlet (3231).

6. The battery according to claim 3, characterized in that The filter assembly (30) further comprises: The fluid swirl element (33) is located in the filter channel (313); the fluid swirl element (33) is connected to the filter pipe (31); and the fluid swirl element (33) is located between the atomizing element (32) and the filter outlet (312).

7. The battery according to claim 6, characterized in that The fluid swirl element (33) comprises: a swirl pipe (331), located in the filtering channel (313); the swirl pipe (331) is connected to the filtering channel (31); the swirl pipe (331) comprises a swirl inlet (3311), a swirl outlet (3312) and a swirl channel (3313); the swirl inlet (3311) and the swirl outlet (3312) are both in communication with the swirl channel (3313); the swirl inlet (3311) and the swirl outlet (3312) are both in communication with the filtering channel (313); the swirl inlet (3311) is located between the filtering inlet (311) and the swirl outlet (3312); and the swirl outlet (3312) is located between the swirl inlet (3311) and the filtering outlet (312); The cyclone (332) is located in the cyclone channel (3313), and the cyclone (332) is connected to the cyclone pipe (331).

8. The battery according to claim 7, characterized in that The filtering channel (313) extends along a first direction, and the cyclone (332) comprises: A support rod (3321) is located in the swirl channel (3313), the support rod (3321) is connected to the swirl pipe (331), and the extension direction of the support rod (3321) is perpendicular to the first direction; A rotating shaft (3322) extending along the first direction, the rotating shaft (3322) being located in the swirl channel (3313), and one end of the rotating shaft (3322) being connected to the support rod (3321); The fan blade (3323) is located in the swirl channel (3313), and the fan blade (3323) is rotatably connected to the other end of the rotating shaft (3322).

9. The battery according to any one of claims 3 to 8, characterized in that The inner wall of the filter pipe (31) has a groove (314), and the groove (314) is located between the atomizing element (32) and the filter outlet (312).

10. The battery according to claim 9, characterized in that The groove (314) is located on a side of the atomization hole (3211) away from the input pipe (322).

11. The battery according to claim 9, characterized in that In the case where the filter assembly (30) includes a fluid cyclone element (33), the groove (314) is located between the fluid cyclone element (33) and the filter outlet (312).

12. The battery according to any one of claims 2 to 8, characterized in that The filter assembly (30) further comprises: The second filter screen (34) is located in the filter channel (313); the second filter screen (34) is connected to the filter pipe (31); the second filter screen (34) is located on a side of the atomizing element (32) close to the filter inlet (311).

13. The battery according to claim 12, characterized in that When the atomizing element (32) includes a first filter screen (324), the mesh number of the second filter screen (34) is smaller than the mesh number of the first filter screen (324).

14. The battery according to any one of claims 2 to 8, characterized in that The filter assembly (30) further comprises: A pressure valve (35) is located in the filter channel (313); the pressure valve (35) is connected to the filter pipe (31); and the pressure valve (35) is located on a side of the atomizing element (32) close to the filter outlet (312).

15. The battery according to claim 14, characterized in that In the case where the filter assembly (30) includes a fluid cyclone element (33), the pressure valve (35) is located between the fluid cyclone element (33) and the filter outlet (312).

16. An electrical device, characterized in that: The electrical device comprises a battery according to any one of claims 1 to 15, wherein the battery is used to provide electrical energy.

17. An energy storage device, characterized in that: The energy storage device comprises a battery according to any one of claims 1 to 15, wherein the battery is used to store electrical energy.

Images