Battery case, battery, and electric device

Abstract

A battery case (20), a battery (100), and an electric device. The electric device comprises the battery case (20) or the battery (100). The battery (100) comprises the battery case (20). The battery case (20) comprises a protection plate (211), a frame (212), a sealing gasket (213), first fasteners (215), and pressing strip structures (214). The frame (212) is arranged on one side of the protection plate (211). The sealing gasket (213) presses against between the frame (212) and the protection plate (211). Each pressing strip structure (214) comprises a first wall (2141). The first wall (2141) is arranged on the side of the protection plate (211) away from the sealing gasket (213). The orthographic projection of the first wall (2141) on the protection plate (211) covers at least part of the orthographic projection of the sealing gasket (213) on the protection plate (211). Each first fastener (215) is used for sequentially passing through the corresponding first wall (2141), the protection plate (211), the sealing gasket (213), and the frame (212) in the distribution direction of the protection plate (211) and the frame (212).

Description

Battery housing, battery and electrical device

[0001] Cross-referencing

[0002] This application claims priority to Chinese patent application No. 202421212420.1, filed on May 30, 2024, with the State Intellectual Property Office of the People's Republic of China, entitled "Battery Housing, Battery and Electrical Device", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of battery technology, specifically to a battery housing, a battery, and an electrical device. Background Technology

[0004] In related technologies, a battery may include a battery casing and individual battery cells. The battery casing may include a frame, a protective plate, and a sealing gasket. The frame is located on one side of the protective plate to form a space for accommodating the individual battery cells. The sealing gasket is pressed between the frame and the protective plate to seal the connection between the frame and the protective plate.

[0005] Under ball impact conditions, the protective plate will be hit by the ball and deform, which will squeeze the sealing gasket and cause the sealing gasket to fail.

[0006] Summary of the Invention

[0007] In view of the above problems, the purpose of this application is to provide a battery box, battery and power device that can improve the technical problem of sealing gasket failure.

[0008] The technical solution adopted in the embodiments of this application is:

[0009] In a first aspect, embodiments of this application provide a battery housing, including:

[0010] Protective panel;

[0011] The frame is located on one side of the protective panel;

[0012] A sealing gasket is pressed between the frame and the protective plate;

[0013] The pressure strip structure includes a first wall, which is located on the side of the protective plate away from the sealing gasket, and the orthographic projection of the first wall on the protective plate covers at least a portion of the orthographic projection of the sealing gasket on the protective plate.

[0014] The first fastener is used to pass sequentially through the first wall, the protective plate, the gasket, and the frame along the distribution direction of the protective plate and the frame.

[0015] The battery housing provided in this application embodiment features a pressure strip structure on the side of the protective plate away from the sealing gasket. The first wall of the pressure strip structure projects onto the protective plate, covering at least a portion of the projection of the sealing gasket onto the protective plate. This allows the pressure strip structure to shield the portion of the protective plate opposite the sealing gasket from impacts such as ball strikes, thus replacing the direct impact of the protective plate on the gasket. By using the pressure strip structure to absorb these impacts, the impact on the portion of the protective plate opposite the sealing gasket is reduced, thereby minimizing deformation and mitigating the problem of over-compression or even damage to the sealing gasket caused by deformation of the protective plate. Therefore, this method helps to improve the problem of over-compression or even damage to the sealing gasket.

[0016] In addition, the setting of the first fastener can, on the one hand, fix the sealing gasket between the frame and the protective plate, so that the sealing gasket can stably achieve the sealing effect at the connection position between the frame and the protective plate; on the other hand, it can fix the pressure strip structure to the protective plate, so as to stably improve the problem of sealing gasket failure.

[0017] In some embodiments, the pressure strip structure has an inner cavity.

[0018] By setting an inner cavity in the pressure strip structure, the pressure strip structure can achieve a certain buffer deformation through the inner cavity when subjected to external impact, so as to absorb the impact energy of the external force.

[0019] In some embodiments, the strip structure further includes:

[0020] The second wall is connected to the first wall and together with the first wall forms an inner cavity.

[0021] By adopting the above technical solution, under impact conditions such as ball strikes, the second wall can withstand the impact, while the first wall can distribute stress. With the stress distributed by the first wall, the impact on the portion of the protective plate directly opposite the sealing gasket is more even, and the impact on the sealing gasket is also evenly distributed. This improves the problem of locally large impacts on the portion of the protective plate directly opposite the sealing gasket, thus mitigating the issue of excessive deformation of the protective plate leading to localized over-compression or even damage to the sealing gasket.

[0022] In some embodiments, the pressure strip structure further includes a third wall, which is connected to the second wall and forms an inner cavity with the first wall and the second wall; in the distribution direction of the protective plate and the frame, the third wall is spaced apart from the first wall and disposed opposite to it.

[0023] This can improve the problem of the protective plate being subjected to large external impacts on the part directly opposite the sealing gasket, thereby improving the problem of large deformation of the protective plate causing local over-compression or even damage to the sealing gasket, and improving the sealing effect failure of the sealing gasket.

[0024] In some embodiments, the orthographic projection of the third wall onto the protective panel covers at least a portion of the orthographic projection of the sealing gasket onto the protective panel.

[0025] In this way, on the one hand, the pressure strip structure can achieve a certain buffer deformation through the cavity to withstand external force impact; on the other hand, the first wall and the second wall can better disperse stress.

[0026] In some embodiments, the protective plate includes a central portion and a peripheral portion connected to the outer periphery of the central portion, a sealing gasket is pressed between the peripheral portion and the frame, a first wall is disposed on the side of the peripheral portion away from the sealing gasket, and a first fastener passes through the peripheral portion.

[0027] The battery housing has a first cross section, which is parallel to the distribution direction of the protective plate and the frame, and passes through the first fastener;

[0028] On the first cross section, along the distribution direction of the outer perimeter and the middle portion, the portion of the sealing gasket located near the middle portion of the first fastener is the inner sealing portion, and the portion of the sealing gasket located away from the middle portion of the first fastener is the outer sealing portion.

[0029] The orthographic projection of the first wall on the outer periphery covers at least a portion of the orthographic projection of the inner sealing portion on the outer periphery and at least a portion of the orthographic projection of the outer sealing portion on the outer periphery.

[0030] In this way, the stress can be dispersed by the first wall, so that the impact of external force on the part of the outer perimeter that is opposite to the inner sealing part and the impact of external force on the part of the outer perimeter that is opposite to the outer sealing part are more balanced. This helps to improve the problem of local overcompression or even damage to the outer sealing part and the problem of local overcompression or even damage to the inner sealing part of the gasket, thereby improving the sealing effect failure of the gasket.

[0031] In some embodiments, the orthographic projection of the inner sealing portion onto the outer periphery lies within the orthographic projection of the first wall onto the outer periphery.

[0032] This design allows the first wall to distribute stress, ensuring that when the pressure strip structure is subjected to external impact, the impact on the inner sealing part is very even, and the inner sealing part is basically not subjected to localized external impact. This significantly improves the problem of localized over-compression or even deformation of the inner sealing part, resulting in a better sealing effect for the gasket.

[0033] In some embodiments, the battery housing further includes a second fastener connected to the frame, and the first fastener passes through the first wall, the protective plate, the sealing gasket, and the second fastener in sequence.

[0034] This allows the pressure strip structure, protective plate, sealing gasket, and frame to be fixed by the first fastener and the second fastener.

[0035] In some embodiments, along the distribution direction of the protective plate and the frame, at least a portion of the second fastener extends beyond the end of the frame near the protective plate and abuts against the protective plate; a sealing gasket surrounds the outer periphery of the second fastener.

[0036] By using a second fastener against the protective plate, the fastener can distribute stress and limit the movement of the protective plate, thereby reducing the impact of external forces on the gasket and ensuring a more even distribution of the impact. This helps to improve the problem of localized over-compression or even breakage of the gasket, thus enhancing its sealing performance.

[0037] In some embodiments, the second fastener includes a second limiting portion and a second fastening portion connected along the distribution direction of the protective plate and the frame, the second fastening portion being disposed within the frame; along the distribution direction of the protective plate and the frame, the second limiting portion is located at one end of the frame near the protective plate, and the other end of the second limiting portion away from the protective plate abuts against the frame.

[0038] This configuration allows the second fastener to be positioned on the frame along the first direction, making it easier for the second fastener to be securely fixed to the frame.

[0039] In some embodiments, the first fastener includes a first limiting portion and a first fastening portion connected along the distribution direction of the protective plate and the frame. The first fastening portion passes through the first wall, the protective plate, the sealing gasket and the second fastener in sequence, and is connected to the second fastener. The first limiting portion is located on the side of the first wall away from the protective plate and abuts against the side of the first wall away from the protective plate.

[0040] This configuration allows the first fastener to securely hold the pressure strip structure, protective plate, sealing gasket, and frame in place.

[0041] In some embodiments, along the distribution direction of the protective plate and the frame, the side of the strip structure away from the protective plate is provided with a receiving groove, and the first wall is provided at the bottom of the receiving groove.

[0042] The first fastener is partially housed in the receiving groove, and along the distribution direction of the protective plate and the frame, the side of the pressure strip structure away from the protective plate extends beyond the end of the first fastener away from the frame.

[0043] By providing a receiving groove on the side of the pressure strip structure away from the protective plate, the first fastener can pass through the first wall, the protective plate, the sealing gasket and the frame in sequence from the receiving groove along the first direction, which facilitates the mutual fixation of the battery box frame, the sealing gasket, the protective plate and the pressure strip structure.

[0044] By extending the side of the pressure strip structure away from the protective plate beyond the end of the first fastener away from the frame in the first direction, the pressure strip structure can provide a certain degree of protection for the first fastener. Based on this, under the protection of external forces such as ball impacts, the first fastener will not be directly impacted by the external force, thus mitigating the problem of damage to the first fastener caused by direct impact, and even cracking of the frame and protective plate, thereby improving the sealing effect of the battery box.

[0045] In some embodiments, the protective plate includes a central portion and a peripheral portion connected to the outer periphery of the central portion, a sealing gasket is pressed between the peripheral portion and the frame, a first wall is disposed on the side of the peripheral portion away from the sealing gasket, and a first fastener passes through the peripheral portion.

[0046] The battery housing has a first cross section, which is parallel to the distribution direction of the protective plate and the frame, and passes through the first fastener;

[0047] On the first cross section, along the distribution direction of the outer and middle parts, the receiving groove passes through the end of the pressure strip structure away from the middle part.

[0048] This configuration allows the edge of the first wall furthest from the middle portion to be as close as possible to the first fastener in the distribution direction of the outer and middle portions, thereby reducing the size of the first wall in the distribution direction of the outer and middle portions and reducing the volume and weight of the pressure strip structure.

[0049] In some embodiments, the pressure strip structure has an inner cavity, and a fourth wall connected to the first wall is provided between the inner cavity and the receiving groove.

[0050] By connecting the fourth wall to the first wall, the fourth wall can also disperse stress, which helps to make the impact of external forces on the part of the protective plate that faces the sealing gasket more balanced, and the impact of external forces on the sealing gasket is also more balanced. This helps to improve the problem of local over-compression or even damage to the sealing gasket.

[0051] In some embodiments, along the distribution direction of the protective plate and the frame, a support portion is provided at one end of the frame near the protective plate, and the support portion abuts against the protective plate.

[0052] By having the frame's support abut against the protective plate, the frame can distribute stress and limit the protective plate, thereby reducing the impact of external forces on the gasket and ensuring a more even distribution of impact. This helps to improve the problem of localized over-compression or even breakage of the gasket, thus enhancing its sealing effect.

[0053] In some embodiments, the protective plate includes a central portion and a peripheral portion connected to the outer periphery of the central portion, a sealing gasket is pressed between the peripheral portion and the frame, and a pressure strip structure is disposed on the side of the peripheral portion away from the sealing gasket.

[0054] In particular, along the distribution direction of the protective plate and the frame, the middle part away from the frame is flush with or extends beyond the side of the pressure strip structure away from the frame.

[0055] This design ensures that the side of the middle section furthest from the frame extends beyond or is flush with the side of the pressure strip structure furthest from the sealing gasket. This reduces the probability of the pressure strip structure being impacted by external forces, thereby helping to improve the sealing effect of the sealing gasket to some extent.

[0056] Secondly, embodiments of this application provide a battery, including a battery housing.

[0057] The battery provided in this application embodiment, by employing the battery casing described above, helps to improve the battery's sealing effect.

[0058] Thirdly, embodiments of this application provide an electrical device, including a battery housing or a battery.

[0059] The electrical device provided in this application, by employing the battery housing or battery described above, helps to improve the sealing effect of the battery, thereby improving the reliability of the battery and thus improving the reliability of the electrical device.

[0060] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0061] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or exemplary technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0062] Figure 1 is a schematic diagram of a vehicle provided in some embodiments of this application;

[0063] Figure 2 is an exploded view of a battery provided in some embodiments of this application;

[0064] Figure 3 is a schematic diagram of a battery provided in some embodiments of this application;

[0065] Figure 4 is a cross-sectional view of Figure 3 along AA;

[0066] Figure 5 is an enlarged view of point B in Figure 4;

[0067] Figure 6 is a three-dimensional structural diagram of the pressure strip structure of the battery provided in some embodiments of this application;

[0068] Figure 7 is an enlarged view of point C in Figure 6;

[0069] Figure 8 is a partial structural diagram of the pressure strip structure of the battery provided in some other embodiments of this application;

[0070] Figure 9 is a partial cross-sectional view of a battery provided in some embodiments of this application.

[0071] The following are the labeling elements in the figure:

[0072] 1000 - Vehicle; 100 - Battery; 200 - Controller; 300 - Motor; 10 - Battery cell; 20 - Battery housing; 201 - Inner cavity; 202 - Receiving slot; 203 - First mounting hole; 204 - Second mounting hole; 205 - Third mounting hole; 206 - Fourth mounting hole; 21 - First part; 22 - Second part; 211 - Protective plate; 2111 - Middle part; 2112 - Outer part; 212 - Frame; 2121 - Support part ; 213-Sealing gasket; 2131-Inner sealing part; 2132-Outer sealing part; 214-Pressure strip structure; 2141-First wall; 2142-Second wall; 2143-Third wall; 2144-Fourth wall; 215-First fastener; 2151-First fastening part; 2152-First limiting part; 216-Second fastener; 2161-Second fastening part; 2162-Second limiting part; a-First cross section; Z-First direction; X-Second direction. Detailed Implementation

[0073] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0074] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0075] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0076] In the description of this application, "multiple" means two or more, and unless otherwise expressly specified, "two or more" includes two. Accordingly, "multiple groups" means two or more groups, including two groups.

[0077] In the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0078] In the description of this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three possibilities: A exists, A and B exist simultaneously, and B exists. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0079] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0080] In related technologies, a battery can be a single physical module comprising one or more battery cells to provide higher voltage and capacity. When there are multiple battery cells, they are connected in series, parallel, or a hybrid configuration via a busbar. A hybrid configuration refers to multiple battery cells being connected in both series and parallel configurations.

[0081] The battery may include a battery casing and individual battery cells, with the individual battery cells housed within the battery casing. The battery casing may include a frame, a protective plate, and a sealing gasket. The frame is located on one side of the protective plate to form a space for accommodating the individual battery cells. The sealing gasket is pressed between the frame and the protective plate to seal the connection between them.

[0082] Under ball impact conditions, the protective plate will be hit by the ball and deform, which will squeeze the gasket, causing the gasket to be over-compressed or even damaged, resulting in the failure of the gasket's sealing effect.

[0083] Specifically, under ball impact conditions, the protective plate is generally deformed locally by the ball. This localized deformation of the protective plate can cause the gasket to be overcompressed or even damaged in certain areas. In other words, the gasket is locally impacted, leading to overcompression or even damage, thus causing the gasket to fail to seal.

[0084] Based on the above considerations, this application provides a battery box, battery, and power device. By providing a pressure strip structure on the side of the protective plate away from the sealing gasket, and the orthographic projection of the pressure strip structure on the protective plate covers at least a portion of the orthographic projection of the sealing gasket on the protective plate, the pressure strip structure can shield the part of the protective plate opposite the sealing gasket under ball impact conditions to withstand the ball impact. This can reduce the impact on the part of the protective plate opposite the sealing gasket, thereby reducing the deformation of the part of the protective plate opposite the sealing gasket, thus helping to improve the problem of over-compression or even damage of the sealing gasket, and improving the problem of sealing gasket failure.

[0085] In some embodiments, the battery housing described in this application can be used in electrical devices that use batteries as a power source.

[0086] The electrical devices involved in this application's embodiments can be, but are not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, vehicles, ships, spacecraft, etc. Electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc. According to the power source, vehicles can be gasoline-powered vehicles, natural gas-powered vehicles, or new energy vehicles; new energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. According to the drive method, vehicles can be front-wheel drive vehicles, rear-wheel drive vehicles, or four-wheel drive vehicles.

[0087] In other embodiments, the battery enclosure described in this application can be used in an energy storage system that uses batteries as energy storage elements. The energy storage system may include energy storage containers, energy storage cabinets, etc.

[0088] For ease of description, this application uses a vehicle as an example to illustrate the embodiments of the electrical device.

[0089] In some embodiments, please refer to FIG1, which is a schematic diagram of a vehicle 1000 provided in some embodiments of this application. The vehicle 1000 has a battery 100 as described above disposed inside it, and the battery 100 may be located at the bottom, front, or rear of the vehicle 1000. The battery 100 can be used to power the vehicle 1000; for example, the battery 100 can serve as the operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300. The controller 200 is used to control the battery 100 to supply power to the motor 300, for example, to meet the power requirements of the vehicle 1000 during startup, navigation, and driving.

[0090] In some embodiments, the battery 100 can not only serve as the operating power source for the vehicle 1000, but also as the driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0091] In some embodiments, please refer to FIG2, and in conjunction with other accompanying drawings. FIG2 is an exploded schematic diagram of a battery 100 provided in some embodiments of this application. The battery 100 may include a battery housing 20 and a plurality of battery cells 10. The battery housing 20 is a structure with internal space, and the internal space of the battery housing 20 is used to accommodate the battery cells 10.

[0092] The battery housing 20 can adopt various structures. In some embodiments, the battery housing 20 may include a first portion 21 and a second portion 22, which overlap each other and together define the internal space of the battery housing 20. Referring to FIG2 and other figures, the first portion 21 may be a hollow structure with an opening at one end, and the second portion 22 may be a plate-like structure, which covers the opening side of the first portion 21 so that the first portion 21 and the second portion 22 together define the internal space of the battery housing 20; or, both the first portion 21 and the second portion 22 may be hollow structures with an opening at one end, with the opening side of the first portion 21 covering the opening side of the second portion 22 so that the first portion 21 and the second portion 22 together define the internal space of the battery housing 20.

[0093] The battery box 20, which consists of the first part 21 and the second part 22, can be of various shapes, such as a cylinder or a cuboid.

[0094] In some embodiments, referring to FIG2, multiple battery cells 10 can be connected in series, parallel, or mixed to form a whole, and then the whole formed by the multiple battery cells 10 is directly housed in the internal space of the battery housing 20. In other embodiments, multiple battery cells 10 can also be connected in series, parallel, or mixed first, and arranged and fixed to form a battery module, and the battery module is housed in the internal space of the battery housing 20. In still other embodiments, multiple battery cells 10 can also be connected in series, parallel, or mixed first, and arranged and fixed to form multiple battery modules, and the multiple battery modules can then be connected in series, parallel, or mixed to form a whole, and housed in the internal space of the battery housing 20.

[0095] As an example, multiple battery cells 10 can be fixed together to form a battery module using cable ties or the like. As another example, multiple battery cells 10 can also be fixed together to form a battery module using end plates, side plates, or the like.

[0096] In some embodiments, the battery housing 20 of the battery 100 may be part of the chassis structure of the vehicle 1000. For example, a portion of the battery housing 20 may be at least a part of the chassis of the vehicle 1000, or a portion of the battery housing 20 may be at least a part of the crossbeams and longitudinal beams of the vehicle 1000.

[0097] The battery cell involved in this application refers to the smallest unit that stores and outputs electrical energy. The battery cell can be a secondary battery or a primary battery. The battery cell can be, but is not limited to, a metal battery, a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery. The battery cell can be cylindrical, flat, cuboid, or other shapes.

[0098] Please refer to Figures 2 through 5, and in conjunction with other accompanying drawings. Figure 3 is a schematic diagram of the battery 100 provided in some embodiments of this application, specifically a schematic diagram of the battery 100 from the perspective of the first direction Z mentioned below, which can be understood as a top view of the battery 100. Figure 4 is a cross-sectional view along AA in Figure 3, and Figure 5 is an enlarged view of point B in Figure 4. The battery housing 20 provided in the embodiments of this application includes a protective plate 211, a frame 212, a sealing gasket 213, a first fastener 215, and a pressure strip structure 214. The frame 212 is disposed on one side of the protective plate 211. The sealing gasket 213 abuts against the frame 212 and the protective plate 211. The pressure strip structure 214 includes a first wall 2141, which is disposed on the side of the protective plate 211 away from the sealing gasket 213. The orthographic projection of the first wall 2141 on the protective plate 211 covers at least a portion of the orthographic projection of the sealing gasket 213 on the protective plate 211. The first fastener 215 is used to pass through the first wall 2141, the protective plate 211, the sealing gasket 213 and the frame 212 in sequence along the distribution direction of the protective plate 211 and the frame 212.

[0099] For ease of description, the distribution direction of the protective plate 211 and the frame 212 is first direction Z. In some cases, the first direction Z can be the height direction of the battery 100.

[0100] Based on the above structure, as shown in Figures 2 to 5, the first part 21 of the battery housing 20 may include the aforementioned protective plate 211, frame 212, sealing gasket 213, and pressure strip structure 214. One or more frames 212 may be configured to form a structure extending through the first direction Z. Along the first direction Z, the protective plate 211 is located at one end of the frame 212. Thus, the frame 212 and the protective plate 211 may be configured to form a hollow structure with an opening at one end.

[0101] Along the first direction Z, the second part 22 of the battery housing 20 is located at the end of the frame 212 away from the protective plate 211, and the second part 22 and the protective plate 211 are positioned opposite each other. In this way, the protective plate 211, the frame 212 and the second part 22 enclose and form the internal space of the battery housing 20.

[0102] The protective plate 211 can form the bottom wall of the internal space of the battery box 20, and the second part 22 can form the top wall of the internal space of the battery box 20. The frame 212 refers to the frame of the battery box 20, which can form the peripheral wall of the internal space of the battery box 20.

[0103] Gasket 213 refers to a structure with sealing properties. Gasket 213 can be made of rubber gaskets, silicone gaskets, or other structures with sealing properties.

[0104] The sealing gasket 213 is pressed between the frame 212 and the protective plate 211. This means that in the first direction Z, the sealing gasket 213 is located between the frame 212 and the protective plate 211, with the end of the sealing gasket 213 near the frame 212 pressing against the frame 212 and the end of the sealing gasket 213 near the protective plate 211 pressing against the protective plate 211. In this way, the sealing gasket 213 can be in a compressed state under the combined pressing action of the frame 212 and the protective plate 211, thereby achieving a sealing effect at the connection position between the protective plate 211 and the frame 212.

[0105] The pressure strip structure 214 refers to the structure installed on the protective plate 211 to resist external forces and reduce the deformation of the protective plate 211 caused by external impact. Among them, the first wall 2141 is the solid wall of the pressure strip structure 214.

[0106] Along the first direction Z, the first wall 2141 of the pressure strip structure 214 is located on the side of the protective plate 211 away from the sealing gasket 213. In this way, the frame 212, the sealing gasket 213, the protective plate 211 and the first wall 2141 of the pressure strip structure 214 are distributed sequentially in the first direction Z.

[0107] The orthographic projection of the first wall 2141 onto the protective plate 211 refers to the projection of the first wall 2141 onto the protective plate 211 along the first direction Z. The first wall 2141 and the protective plate 211 are positioned directly opposite each other along the first direction Z.

[0108] The at least partial orthographic projection of the sealing gasket 213 onto the protective plate 211 refers to at least a portion of the projection of the sealing gasket 213 onto the protective plate 211 along the first direction Z. The sealing gasket 213 and the protective plate 211 are positioned directly opposite each other along the first direction Z.

[0109] The orthographic projection of the first wall 2141 on the protective plate 211 covers at least a portion of the orthographic projection of the sealing gasket 213 on the protective plate 211, such that the portion of the protective plate 211 that is directly opposite the sealing gasket 213 along the first direction Z is also directly opposite the first wall 2141 along the first direction Z, thereby making at least a portion of the first wall 2141 and at least a portion of the sealing gasket 213 directly opposite each other through the protective plate 211 along the first direction Z.

[0110] The first fastener 215 refers to a component used for fastening, such as a bolt or rivet.

[0111] Along the first direction Z, the first fastener 215 passes through the first wall 2141, the protective plate 211, the sealing gasket 213 and the frame 212 in sequence, which can fix the first wall 2141, the protective plate 211, the sealing gasket 213 and the frame 212 together, so that the first wall 2141, the protective plate 211, the sealing gasket 213 and the frame 212 are fixed by the first fastener 215.

[0112] The first fastener 215 passes sequentially through the first wall 2141, the protective plate 211, the sealing gasket 213, and the frame 212, and is at least fixed to the frame 212, thereby securing the first wall 2141, the protective plate 211, the sealing gasket 213, and the frame 212. As an example, the frame 212 is provided with a second fastener 216, which is described below. The first fastener 215 is fixed to the second fastener 216 provided on the frame 212, thereby indirectly securing it to the frame 212.

[0113] The first fastener 215 passes sequentially through the first wall 2141, the protective plate 211, the sealing gasket 213, and the frame 212, such that the first wall 2141, the protective plate 211, the sealing gasket 213, and the frame 212 are distributed sequentially along the first direction Z. The first wall 2141 may abut against the portion of the protective plate 211 opposite the sealing gasket 213. Other intermediate components may also be provided between the first wall 2141 and the protective plate 211, and these intermediate components may be, but are not limited to, gaskets.

[0114] The battery housing 20 provided in this application embodiment has a first wall 2141 of a pressure strip structure 214 provided on the side of the protective plate 211 away from the sealing gasket 213. The orthographic projection of the first wall 2141 of the pressure strip structure 214 on the protective plate 211 covers at least a portion of the orthographic projection of the sealing gasket 213 on the protective plate 211. This allows the pressure strip structure 214 to shield the portion of the protective plate 211 facing the sealing gasket 213 under impact conditions such as ball strikes, thus replacing the protective plate 211 directly bearing the impact of ball strikes. In this way, by having the pressure strip structure 214 bear the impact of ball strikes, the impact on the portion of the protective plate 211 facing the sealing gasket 213 can be reduced, thereby reducing the deformation of the portion of the protective plate 211 facing the sealing gasket 213 and improving the problem of over-compression or even damage to the sealing gasket 213 caused by the deformation of the protective plate 211. Therefore, it helps to improve the problem of overcompression or even breakage of the gasket 213, and in particular, it helps to improve the problem of localized overcompression or even breakage of the gasket 213. Thus, it can improve the problem of sealing failure of the gasket 213.

[0115] Specifically, a first wall 2141 is located on the side of the protective plate 211 away from the sealing gasket 213, and a first fastener 215 passes sequentially through the first wall 2141, the protective plate 211, the sealing gasket 213, and the frame 212, so that the first wall 2141 is fixed to the portion of the protective plate 211 opposite to the sealing gasket 213 by the first fastener 215. This allows the first wall 2141 to distribute stress, resulting in a more balanced impact from external forces on the portion of the protective plate 211 opposite to the sealing gasket 213, and consequently, a more balanced impact on the sealing gasket 213. This improves the problem of locally large impacts on the portion of the protective plate 211 opposite to the sealing gasket 213, thus mitigating the problem of excessive deformation of the protective plate 211 leading to localized over-compression or even damage to the sealing gasket 213, and improving the sealing effect of the sealing gasket 213.

[0116] In addition, the first fastener 215 can, on the one hand, fix the sealing gasket 213 between the frame 212 and the protective plate 211, thereby enabling the sealing gasket 213 to stably achieve the sealing effect at the connection position between the frame 212 and the protective plate 211; on the other hand, it can fix the pressure strip structure 214 to the protective plate 211, thereby stably improving the problem of sealing effect failure of the sealing gasket 213.

[0117] As shown in Figures 2 to 5, along the first direction Z, the first wall 2141 is provided with a first mounting hole 203, the protective plate 211 is provided with a second mounting hole 204, and the sealing gasket 213 is provided with a third mounting hole 205. The first fastener 215 passes through the first mounting hole 203, the second mounting hole 204, the third mounting hole 205 and the frame 212 in sequence, so as to realize the mutual fixation of the pressure strip structure 214, the protective plate 211, the sealing gasket 213 and the frame 212.

[0118] In some embodiments, please refer to Figures 2 through 5 together, and in conjunction with other figures. The pressure strip structure 214 is provided with an inner cavity 201.

[0119] The pressure strip structure 214 has an inner cavity 201, which means that the pressure strip structure 214 has a space inside.

[0120] By incorporating an inner cavity 201 into the pressure strip structure 214, the pressure strip structure 214 can achieve a certain degree of buffer deformation under external impact, thereby absorbing the impact energy. This reduces the impact force on the protective plate 211, thus minimizing the deformation of the portion of the protective plate 211 directly opposite the sealing gasket 213. Consequently, it effectively mitigates the problem of over-compression or even damage to the sealing gasket 213 caused by deformation of the protective plate 211, thereby improving the sealing effect of the sealing gasket 213.

[0121] In some embodiments, please refer to Figures 2 to 5 together with other figures. The pressure strip structure 214 also includes a second wall 2142. The second wall 2142 is connected to the first wall 2141, and the second wall 2142 and the first wall 2141 enclose an inner cavity 201.

[0122] The first wall 2141 and the second wall 2142 are two solid walls of the pressure strip structure 214.

[0123] By adopting the above technical solution, under impact conditions such as ball strikes, the second wall 2142 can withstand the impact of ball strikes, while the first wall 2141 can distribute stress. Under the stress-distributing effect of the first wall 2141, the portion of the protective plate 211 facing the sealing gasket 213 experiences a more balanced impact, and the impact on the sealing gasket 213 is also balanced accordingly. This improves the problem of locally large impacts on the portion of the protective plate 211 facing the sealing gasket 213, thus mitigating the issue of excessive deformation of the protective plate 211 leading to localized over-compression or even damage to the sealing gasket 213.

[0124] In some embodiments, please refer to Figures 2 to 5 together, and in conjunction with other figures. The pressure strip structure 214 further includes a third wall 2143, which is connected to the second wall 2142, and the first wall 2141, the second wall 2142, and the third wall 2143 enclose an inner cavity 201. In the distribution direction of the protective plate 211 and the frame 212, the third wall 2143 is spaced apart from and opposite to the first wall 2141.

[0125] The third wall 2143 refers to the solid wall of the pressure strip structure 214.

[0126] As an example, along the first direction Z, the third wall 2143 is connected to the end of the second wall 2142 away from the first wall 2141.

[0127] By spaced apart from and opposite to the first wall 2141, the third wall 2143 can withstand the impact of external forces such as ball strikes and undergo a certain degree of buffer deformation. This allows the pressure strip structure 214 to absorb the impact energy through the cavity, thereby reducing the impact on the protective plate 211 and the sealing gasket 213. Furthermore, the first wall 2141 and the second wall 2142 can distribute stress, resulting in a more balanced impact on the portion of the protective plate 211 facing the sealing gasket 213, and consequently, a more balanced impact on the sealing gasket 213. This improves the problem of locally large impacts on the portion of the protective plate 211 facing the sealing gasket 213, mitigating the issue of excessive deformation of the protective plate 211 leading to localized over-compression or even damage to the sealing gasket 213, and ultimately improving the sealing performance of the sealing gasket 213.

[0128] In some embodiments, please refer to Figures 2 through 5 together with other figures. The orthographic projection of the third wall 2143 on the protective plate 211 covers at least a portion of the orthographic projection of the sealing gasket 213 on the protective plate 211.

[0129] Understandably, the portion of the protective plate 211 that is directly opposite the sealing gasket 213 is disposed opposite to the first wall 2141 and opposite to the third wall 2143.

[0130] By adopting the above technical solution, the third wall 2143 can shield the portion of the protective plate 211 facing the sealing gasket 213 and the first wall 2141, thereby withstanding external impacts such as ball strikes. In this way, on the one hand, the pressure strip structure 214 can achieve a certain degree of buffer deformation through the cavity against external impacts; on the other hand, the first wall 2141 and the second wall 2142 can better disperse stress. Thus, the problem of locally large external impacts on the portion of the protective plate 211 facing the sealing gasket 213 can be significantly improved, thus mitigating the problem of excessive local deformation of the protective plate 211 leading to local over-compression or even damage to the sealing gasket 213, and improving the sealing effect failure of the sealing gasket 213.

[0131] In some embodiments, please refer to Figures 2 to 5 together with other figures. The protective plate 211 includes a central portion 2111 and a peripheral portion 2112. The peripheral portion 2112 surrounds the outer periphery of the central portion 2111 and is connected to the central portion 2111. A sealing gasket 213 is pressed between the peripheral portion 2112 and the frame 212. A first wall 2141 is located on the side of the peripheral portion 2112 away from the sealing gasket 213.

[0132] The middle part 2111 and the outer part 2112 are two parts of the protective plate 211. Along the first direction Z, the frame 212 is located on one side of the outer part 2112, the sealing gasket 213 is pressed between the outer part 2112 and the frame 212, and the first wall 2141 is located on the side of the outer part 2112 away from the sealing gasket 213.

[0133] In some embodiments, please refer to Figures 2 to 5 together, and in conjunction with other figures. A first fastener 215 passes through the peripheral portion 2112. Specifically, along the first direction Z, the first fastener 215 passes sequentially through the first wall 2141, the peripheral portion 2112, the sealing gasket 213, and the frame 212 to achieve mutual fixation of the pressure strip structure 214, the protective plate 211, the sealing gasket 213, and the frame 212.

[0134] In some embodiments, as shown in Figures 4 and 5, the battery housing 20 has a first section a. The first section a is parallel to the distribution direction of the protective plate 211 and the frame 212, and passes through the first fastener 215. In Figure 4, the cross-sectional view of the battery 100 is the same as the view of the first section a, and the first section a of the battery housing 20 can be referred to Figure 4.

[0135] In some embodiments, as shown in Figures 4 and 5, in the first section a, the sealing gasket 213 includes an inner sealing portion 2131 and an outer sealing portion 2132. Along the distribution direction of the peripheral portion 2112 and the middle portion 2111, the portion of the sealing gasket 213 located on the first fastener 215 near the middle portion 2111 is the inner sealing portion 2131, and the portion of the sealing gasket 213 located on the first fastener 215 away from the middle portion 2111 is the outer sealing portion 2132.

[0136] The inner sealing part 2131 and the outer sealing part 2132 are two parts of the sealing gasket 213, both of which have sealing performance.

[0137] Specifically, along the distribution direction of the outer perimeter 2112 and the middle portion 2111, the inner sealing portion 2131 and the outer sealing portion 2132 are located on opposite sides of the first fastener 215. Along the first direction Z, the inner sealing portion 2131 presses against the frame 212 and the outer perimeter 2112, and the outer sealing portion 2132 presses against the frame 212 and the outer perimeter 2112. This allows the sealing gasket 213 to surround the outer periphery of the first fastener 215 and press against the frame 212 and the outer perimeter 2112, thereby achieving a better sealing effect between the frame 212 and the outer perimeter 2112.

[0138] For ease of description, the distribution direction of the outer portion 2112 and the middle portion 2111 on the first cross section a can be defined as the second direction X. That is, the first cross section a is parallel to the first direction Z and the second direction X.

[0139] For ease of description, a spatial coordinate system can be established in Figure 2, with the X-axis, Y-axis, and Z-axis as the three coordinate axes of the spatial coordinate system. The X-axis is perpendicular to the Y-axis, the X-axis is perpendicular to the Z-axis, and the Y-axis is perpendicular to the Z-axis. The first direction Z is parallel to the Z-axis. On one of the first cross-sections a, the second direction X can be parallel to the X-axis.

[0140] In some embodiments, please refer to Figures 2 to 5 together, and in conjunction with other figures. The orthographic projection of the first wall 2141 on the peripheral portion 2112 covers at least a partial orthographic projection of the inner sealing portion 2131 on the peripheral portion 2112 and at least a partial orthographic projection of the outer sealing portion 2132 on the peripheral portion 2112.

[0141] The orthographic projection of the first wall 2141 onto the outer perimeter 2112 refers to the projection of the first wall 2141 onto the outer perimeter 2112 along the first direction Z. The first wall 2141 and the outer perimeter 2112 are positioned directly opposite each other along the first direction Z.

[0142] The at least partial orthographic projection of the inner sealing portion 2131 onto the outer peripheral portion 2112 refers to at least a portion of the projection of the inner sealing portion 2131 onto the outer peripheral portion 2112 along the first direction Z. The inner sealing portion 2131 and the outer peripheral portion 2112 are disposed directly opposite each other along the first direction Z.

[0143] The at least partial orthographic projection of the outer sealing portion 2132 onto the peripheral portion 2112 refers to at least a portion of the projection of the outer sealing portion 2132 onto the peripheral portion 2112 along the first direction Z. The outer sealing portion 2132 and the peripheral portion 2112 are disposed directly opposite each other along the first direction Z.

[0144] By adopting the above technical solution, the first wall 2141 is located on the portion of the outer perimeter 2112 opposite to the inner sealing portion 2131, and also on the portion of the outer perimeter 2112 opposite to the outer sealing portion 2132. In this way, the first wall 2141 can disperse stress, making the impact of external forces on the portions of the outer perimeter 2112 opposite to the inner sealing portion 2131 and opposite to the outer sealing portion 2132 more balanced. This helps to improve the problem of local overcompression or even breakage of the outer sealing portion 2132 and the inner sealing portion 2131 of the sealing gasket 213, thereby improving the sealing effect failure of the sealing gasket 213.

[0145] In some embodiments, please refer to Figures 2 to 5 together, and in conjunction with other figures. The orthographic projection of the inner sealing portion 2131 on the outer periphery 2112 lies within the orthographic projection of the first wall 2141 on the outer periphery 2112.

[0146] Understandably, the orthographic projection of the first wall 2141 onto the outer perimeter 2112 completely covers the orthographic projection of the inner sealing portion 2131 onto the outer perimeter 2112, such that all parts of the outer perimeter 2112 that are directly opposite the inner sealing portion 2131 are completely aligned with the first wall 2141.

[0147] This design allows the first wall 2141 to distribute stress, ensuring that when the pressure strip structure 214 is subjected to external impact, the impact on the inner sealing part 2131 is very even, and the inner sealing part 2131 is basically not subjected to localized external impact. This significantly improves the problem of localized over-compression or even deformation of the inner sealing part 2131, resulting in a better sealing effect for the sealing gasket 213.

[0148] In some embodiments, please refer to Figures 2 to 5 together, and in conjunction with other figures. The battery housing 20 also includes a second fastener 216, which is connected to the frame 212. The first fastener 215 passes through the first wall 2141, the protective plate 211, the sealing gasket 213 and the second fastener 216 in sequence.

[0149] The second fastener 216 refers to the component set on the frame 212 for fixed connection with the first fastener 215.

[0150] Along the first direction Z, the first fastener 215 passes through the first wall 2141, the protective plate 211, the sealing gasket 213, and the second fastener 216 in sequence, so that the pressure strip structure 214, the protective plate 211, the sealing gasket 213, and the frame 212 are fixed by the first fastener 215 and the second fastener 216.

[0151] The second fastener 216 is connected to the frame 212, and the first fastener 215 passes through the second fastener 216, so that the first fastener 215 also passes through the frame 212. As an example, as shown in Figures 2 to 5, along the first direction Z, the second fastener 216 has a fourth mounting hole 206 at the end near the protective plate 211. The first fastener 215 passes through the first mounting hole 203, the second mounting hole 204, the third mounting hole 205 and the fourth mounting hole 206 in sequence, so as to realize the mutual fixation of the frame 212, the sealing gasket 213, the protective plate 211 and the pressure strip structure 214 of the battery box 20.

[0152] In some embodiments, please refer to Figures 2 through 5 together with other figures. Along the distribution direction of the protective plate 211 and the frame 212, at least a portion of the second fastener 216 extends beyond the end of the frame 212 near the protective plate 211 and abuts against the protective plate 211. A sealing gasket 213 surrounds the outer periphery of the second fastener 216.

[0153] The second fastener 216 abuts against the protective plate 211, allowing it to distribute stress and provide some restraint to the protective plate 211. This reduces the impact of external forces on the sealing gasket 213 and ensures that the impact is more even. This helps to improve the problem of localized over-compression or even breakage of the sealing gasket 213, thereby enhancing its sealing performance.

[0154] In some embodiments, please refer to Figures 2 to 5 together with other figures. The second fastener 216 includes a second limiting portion 2162 and a second fastening portion 2161 connected sequentially along the first direction Z. The second fastening portion 2161 is disposed within the frame 212. Along the first direction Z, the second limiting portion 2162 is located at the end of the frame 212 near the protective plate 211. That is, the second limiting portion 2162 is the portion of the second fastener 216 that extends beyond the end of the frame 212 near the protective plate 211. Furthermore, along the first direction Z, the end of the second limiting portion 2162 away from the protective plate 211 abuts against the frame 212.

[0155] This configuration allows the second fastener 216 to be positioned on the frame 212 along the first direction Z, making it easier for the second fastener 216 to be securely fixed to the frame 212.

[0156] It should be noted that the fourth mounting hole 206 of the second fastener 216 is sequentially opened in the second limiting part 2162 and the second fastening part 2161 along the first direction Z.

[0157] In some embodiments, please refer to Figures 2 to 7 together with other figures. Figure 6 is a perspective view of the pressure strip structure 214 provided in some embodiments of this application, and Figure 7 is an enlarged view of point C in Figure 6. Along the distribution direction of the protective plate 211 and the frame 212, the pressure strip structure 214 has a receiving groove 202 on the side away from the protective plate 211, and a first wall 2141 is provided at the bottom of the receiving groove 202. A portion of the first fastener 215 is received within the receiving groove 202, and along the distribution direction of the protective plate 211 and the frame 212, the side of the pressure strip structure 214 away from the protective plate 211 extends beyond the end of the first fastener 215 away from the frame 212.

[0158] The receiving groove 202 refers to a groove provided on the side of the pressure strip structure 214 away from the protective plate 211 along the first direction Z. The bottom of the receiving groove 202 is the groove wall of the receiving groove 202 close to the protective plate 211 along the first direction Z. At least a portion of the first wall 2141 is the bottom of the receiving groove 202.

[0159] By providing a receiving groove 202 on the side of the pressure strip structure 214 away from the protective plate 211, the first fastener 215 can pass through the receiving groove 202 in sequence along the first direction Z through the first wall 2141, the protective plate 211, the sealing gasket 213 and the frame 212, which facilitates the mutual fixation of the frame 212, the sealing gasket 213, the protective plate 211 and the pressure strip structure 214 of the battery box 20.

[0160] By extending the side of the pressure strip structure 214 away from the protective plate 211 beyond the end of the first fastener 215 away from the frame 212 in the first direction Z, the pressure strip structure 214 can provide a certain degree of protection for the first fastener 215. Based on this, under the protection of external forces such as ball impacts, the first fastener 215 will not be directly impacted by the external force, thus mitigating the problem of damage to the first fastener 215 caused by direct impact, and even cracking of the frame 212 and protective plate 211, thereby improving the sealing effect of the battery box 20.

[0161] It should be noted that the side of the pressure strip structure 214 away from the protective plate 211 can be the third wall 2143.

[0162] It should also be noted that the first mounting hole 203 is opened at the bottom of the receiving groove 202 and is connected to the receiving groove 202.

[0163] As shown in Figures 2 to 5, the first fastener 215 includes a first limiting part 2152 and a first fastening part 2151 connected sequentially along the first direction Z. The first fastening part 2151 passes sequentially through the first wall 2141, the protective plate 211, the sealing gasket 213, and the second fastener 216 along the first direction Z, and is connected to the second fastener 216. The first limiting part 2152 is located on the side of the first wall 2141 away from the protective plate 211 along the first direction Z, and abuts against the side of the first wall 2141 away from the protective plate 211. The provision of the first limiting part 2152 ensures that the first fastener 215 is limited to the first wall 2141 along the first direction Z, so that the first fastener 215 can securely fix the pressure strip structure 214, the protective plate 211, the sealing gasket 213, and the frame 212.

[0164] The first limiting part 2152 is completely located within the receiving groove 202, so that the side of the pressure strip structure 214 away from the protective plate 211 extends beyond the end of the first fastener 215 away from the frame 212.

[0165] Specifically, when the battery 100 is in use, the receiving groove 202 can trap foreign objects such as stones, which can improve the problem of the sealing effect of the battery box 20 failing due to foreign objects impacting the first fastener 215.

[0166] In some embodiments, please refer to Figures 2 to 5 together with other figures. The protective plate 211 includes a central portion 2111 and a peripheral portion 2112, the peripheral portion 2112 surrounding the outer periphery of the central portion 2111 and connected to it. A sealing gasket 213 presses against the peripheral portion 2112 and the frame 212. A first wall 2141 is provided on the side of the peripheral portion 2112 away from the sealing gasket 213, and a first fastener 215 passes through the peripheral portion 2112. The battery housing 20 has a first cross-section a, which is parallel to the distribution direction of the protective plate 211 and the frame 212 and passes through the first fastener 215. On the first cross-section a, along the distribution direction of the peripheral portion 2112 and the central portion 2111, a receiving groove 202 passes through one end of the pressure strip structure 214 away from the central portion 2111.

[0167] Specifically, in the second direction X, the receiving groove 202 passes through the end of the pressure strip structure 214 away from the middle part 2111.

[0168] With this configuration, in the second direction X, the pressure strip structure 214 omits the wall located away from the middle portion 2111, so that in the second direction X, the edge of the first wall 2141 away from the middle portion 2111 can be as close as possible to the first fastener 215, thereby reducing the size of the first wall 2141 in the second direction X, and reducing the volume and weight of the pressure strip structure 214.

[0169] In some embodiments, please refer to Figures 5 to 7 together with other figures. The pressure strip structure 214 is provided with an inner cavity 201, and the inner cavity 201 of the pressure strip structure 214 and the receiving groove 202 are connected.

[0170] This design allows the pressure strip structure 214 to be buffered and deformed by the inner cavity 201 and the receiving groove 202 when subjected to external impact, which helps to absorb the impact energy of the external force, thereby reducing the impact of the external force on the protective plate 211 and thus helping to improve the problem of over-compression or even damage of the sealing gasket 213.

[0171] In some embodiments, please refer to FIG8, and in conjunction with other figures. FIG8 is a partial structural diagram of the pressure strip structure 214 of the battery 100 provided in other embodiments of this application. The pressure strip structure 214 is provided with an inner cavity 201, and a fourth wall 2144 connected to the first wall 2141 is provided between the inner cavity 201 and the receiving groove 202.

[0172] The fourth wall 2144 refers to the solid wall of the pressure strip structure 214.

[0173] The fourth wall 2144 is connected to the first wall 2141, so that the fourth wall 2144 can also disperse the stress, which helps to make the part of the protective plate 211 facing the sealing gasket 213 more evenly subjected to the external force impact, and the sealing gasket 213 is also more evenly subjected to the external force impact. This helps to improve the problem of local over-compression or even damage to the sealing gasket 213.

[0174] It should be further explained that the fourth wall 2144 is also connected to the third wall 2143. That is, in the first direction Z, the fourth wall 2144 is located between the first wall 2141 and the third wall 2143, and is connected to the first wall 2141 and the third wall 2143. In this way, the third wall 2143 can be used to distribute stress.

[0175] In some embodiments, please refer to FIG9, and in conjunction with other figures. FIG9 is a partial cross-sectional view of a battery 100 provided in some embodiments of this application. Along the distribution direction of the protective plate 211 and the frame 212, the frame 212 is provided with a support portion 2121 near the end of the protective plate 211, and the support portion 2121 abuts against the protective plate 211.

[0176] The support portion 2121 refers to the part of the frame 212 that protrudes toward the protective plate 211 along the first direction Z.

[0177] By having the support portion 2121 of the frame 212 abut against the protective plate 211, the frame 212 can distribute stress and limit the protective plate 211 to a certain extent, thereby reducing the impact of external forces on the sealing gasket 213 and making the impact of external forces on the sealing gasket 213 more even. This helps to improve the problem of local over-compression or even damage to the sealing gasket 213, thus improving the sealing effect of the sealing gasket 213.

[0178] In some embodiments, please refer to Figures 2 to 5 together with other figures. The protective plate 211 includes a central portion 2111 and a peripheral portion 2112, the peripheral portion 2112 surrounding the outer periphery of the central portion 2111 and connected to the central portion 2111. A sealing gasket 213 is pressed against the peripheral portion 2112 and the frame 212. A pressure strip structure 214 is provided on the side of the peripheral portion 2112 away from the sealing gasket 213.

[0179] In some possible designs, as shown in Figures 4 and 5, along the distribution direction of the protective plate 211 and the frame 212, the side of the middle part 2111 away from the frame 212 is flush with the side of the pressure strip structure 214 away from the frame 212.

[0180] Alternatively, in some other possible designs, along the distribution direction of the protective plate 211 and the frame 212, the side of the middle portion 2111 away from the frame 212 extends beyond the side of the pressure strip structure 214 away from the frame 212.

[0181] This arrangement ensures that the side of the middle part 2111 away from the frame 212 extends beyond or is flush with the side of the pressure strip structure 214 away from the sealing gasket 213. This reduces the probability of the pressure strip structure 214 being impacted by external forces, thereby helping to improve the sealing effect of the sealing gasket 213 to a certain extent.

[0182] Please refer to Figure 2 and other accompanying drawings. The battery 100 provided in this embodiment includes a battery housing 20. The battery housing 20 in this embodiment is the same as the battery housing 20 in the previous embodiment; please refer to the relevant description of the battery housing 20 in the previous embodiment for details, which will not be repeated here.

[0183] The battery 100 provided in this application embodiment, by adopting the battery housing 20 mentioned above, helps to improve the sealing effect of the battery 100.

[0184] It should be noted that the battery 100 may also include a battery cell 10, which is housed within the internal space of the battery housing 20.

[0185] Specifically, the middle part 2111 of the battery cell 10 and the protective plate 211 are positioned opposite each other.

[0186] Please refer to Figure 1. The power device provided in this embodiment includes a battery housing 20 or a battery 100. The battery housing 20 and battery 100 in this embodiment are the same as those in the previous embodiment. For details, please refer to the relevant description of the battery housing 20 and battery 100 in the previous embodiment; they will not be repeated here.

[0187] The electrical device provided in this application embodiment, by employing the battery housing 20 or battery 100 mentioned above, helps to improve the sealing effect of the battery 100, thereby improving the reliability of the battery 100 and thus improving the reliability of the electrical device.

[0188] As one embodiment of this application, as shown in Figures 2 to 5, the battery housing 20 includes a frame 212, a protective plate 211, a sealing gasket 213, and a pressure strip structure 214. The protective plate 211 includes a middle portion 2111 and a peripheral portion 2112 connected to the outer periphery of the middle portion 2111. The frame 212 is disposed on one side of the peripheral portion 2112, and the sealing gasket 213 abuts against the peripheral portion 2112 and the frame 212. The pressure strip structure 214 includes a first wall 2141, a second wall 2142, and a third wall 2143. The first wall 2141 abuts against the side of the peripheral portion 2112 away from the sealing gasket 213. The second wall 2142 is connected to the first wall 2141, and the third wall 2143 is connected to the second wall 2142 and is disposed opposite to the first wall 2141. The orthographic projection of the first wall 2141 on the outer perimeter 2112 covers at least a portion of the orthographic projection of the sealing gasket 213 on the outer perimeter 2112, and the orthographic projection of the third wall 2143 on the outer perimeter 2112 covers at least a portion of the orthographic projection of the sealing gasket 213 on the outer perimeter 2112.

[0189] The above are merely optional embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A battery pack (20), wherein, include: Protective plate (211); A frame (212) is provided on one side of the protective plate (211); A sealing gasket (213) is pressed between the frame (212) and the protective plate (211); The pressure strip structure (214) includes a first wall (2141), which is located on the side of the protective plate (211) away from the sealing gasket (213), and the orthographic projection of the first wall (2141) on the protective plate (211) covers at least a portion of the orthographic projection of the sealing gasket (213) on the protective plate (211). A first fastener (215) is used to pass sequentially through the first wall (2141), the protective plate (211), the sealing gasket (213), and the frame (212) along the distribution direction of the protective plate (211) and the frame (212).

2. The battery pack (20) of claim 1, wherein, The pressure strip structure (214) is provided with an inner cavity (201).

3. The battery pack (20) of claim 2, wherein, The pressure strip structure (214) further includes: The second wall (2142) is connected to the first wall (2141) and together with the first wall (2141) forms the inner cavity (201).

4. The battery pack (20) of claim 3, wherein, The pressure strip structure (214) further includes a third wall (2143), which is connected to the second wall (2142) and forms the inner cavity (201) together with the first wall (2141) and the second wall (2142); in the distribution direction of the protective plate (211) and the frame (212), the third wall (2143) is spaced apart from and opposite to the first wall (2141).

5. The battery pack (20) of claim 4, wherein, The orthographic projection of the third wall (2143) onto the protective plate (211) covers at least a portion of the orthographic projection of the sealing gasket (213) onto the protective plate (211).

6. The battery pack (20) of any of claims 1-5, wherein, The protective plate (211) includes a middle part (2111) and a peripheral part (2112) connected to the outer periphery of the middle part (2111). The sealing gasket (213) is pressed between the peripheral part (2112) and the frame (212). The first wall (2141) is located on the side of the peripheral part (2112) away from the sealing gasket (213). The first fastener (215) passes through the peripheral part (2112). The battery box (20) has a first cross section (a), which is parallel to the distribution direction of the protective plate (211) and the frame (212) and passes through the first fastener (215); On the first cross section (a), along the distribution direction of the outer portion (2112) and the middle portion (2111), the portion of the sealing gasket (213) located near the middle portion (2111) of the first fastener (215) is the inner sealing portion (2131), and the portion of the sealing gasket (213) located away from the middle portion (2111) of the first fastener (215) is the outer sealing portion (2132). The first wall (2141) covers at least part of the projection of the inner sealing portion (2131) and at least part of the projection of the outer sealing portion (2132) on the peripheral portion (2112).

7. The battery pack (20) of claim 6, wherein, The projection of the inner sealing portion (2131) on the peripheral portion (2112) is located within the projection of the first wall (2141) on the peripheral portion (2112).

8. The battery pack (20) of any of claims 1-7, wherein, The battery box (20) further comprises a second fastener (216) connected to the frame (212), and the first fastener (215) sequentially penetrates the first wall (2141), the protection plate (211), the sealing gasket (213) and the second fastener (216).

9. The battery pack (20) of claim 8, wherein, At least part of the second fastener (216) extends out of one end of the frame (212) close to the protection plate (211) and abuts against the protection plate (211) along the distribution direction of the protection plate (211) and the frame (212), and the sealing gasket (213) is arranged around the outer periphery of the second fastener (216).

10. The battery pack (20) of claim 8 or 9, wherein, The second fastener (216) comprises a second limiting portion (2162) and a second fastening portion (2161) connected along the distribution direction of the protection plate (211) and the frame (212), and the second fastening portion (2161) is arranged in the frame (212); along the distribution direction of the protection plate (211) and the frame (212), the second limiting portion (2162) is located at one end of the frame (212) close to the protection plate (211), and one end of the second limiting portion (2162) away from the protection plate (211) abuts against the frame (212).

11. The battery pack (20) according to any one of claims 8-10, wherein, The first fastener (215) comprises a first limiting portion (2152) and a first fastening portion (2151) connected along the distribution direction of the protection plate (211) and the frame (212), and the first fastening portion (2151) is sequentially arranged in the first wall (2141), the protection plate (211), the sealing gasket (213) and the second fastener (216), and is connected to the second fastener (216); the first limiting portion (2152) is located on the side of the first wall (2141) away from the protection plate (211) and abuts against the side of the first wall (2141) away from the protection plate (211).

12. The battery pack (20) of any of claims 1-11, wherein, Along the distribution direction of the protection plate (211) and the frame (212), the side of the pressing strip structure (214) away from the protection plate (211) is provided with a receiving groove (202), and the first wall (2141) is arranged at the groove bottom of the receiving groove (202); Part of the first fastener (215) is accommodated in the accommodation groove (202), and along the distribution direction of the protective plate (211) and the frame (212), the side of the pressing strip structure (214) away from the protective plate (211) exceeds the end of the first fastener (215) away from the frame (212).

13. The battery pack (20) of claim 12, wherein, The protective plate (211) comprises a middle part (2111) and a peripheral part (2112) connected to the outer periphery of the middle part (2111), the sealing gasket (213) is pressed between the peripheral part (2112) and the frame (212), the first wall (2141) is arranged on the side of the peripheral part (2112) away from the sealing gasket (213), and the first fastener (215) is arranged through the peripheral part (2112). The battery box (20) is provided with a first cross section (a), the first cross section (a) is parallel to the distribution direction of the protective plate (211) and the frame (212), and passes through the first fastener (215); On the first cross section (a), along the distribution direction of the peripheral part (2112) and the middle part (2111), the accommodation groove (202) penetrates the end of the pressing strip structure (214) away from the middle part (2111).

14. The battery pack (20) of claim 12 or 13, wherein, The pressing strip structure (214) is provided with an inner cavity (201), and a fourth wall (2144) connected to the first wall (2141) is arranged between the inner cavity (201) and the accommodation groove (202).

15. The battery pack (20) of any of claims 1-14, wherein, Along the distribution direction of the protective plate (211) and the frame (212), the end of the frame (212) close to the protective plate (211) is provided with a supporting part (2121), and the supporting part (2121) abuts against the protective plate (211).

16. The battery pack (20) of any one of claims 1-15, wherein, The protective plate (211) comprises a middle part (2111) and a peripheral part (2112) connected to the outer periphery of the middle part (2111), the sealing gasket (213) is pressed between the peripheral part (2112) and the frame (212), and the pressing strip structure (214) is arranged on the side of the peripheral part (2112) away from the sealing gasket (213). Wherein, along the distribution direction of the protective plate (211) and the frame (212), the side of the middle part (2111) away from the frame (212) is flush or exceeds the side of the pressing strip structure (214) away from the frame (212).

17. A battery (100), wherein The battery box (20) according to any one of claims 1-16.

18. An electrical device, comprising: The battery (100) according to claim 17.

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