Battery device and electric equipment

Abstract

According to the battery device and the electric equipment, the blocking piece extending in the second direction is arranged on the base, so that when the electrolyte in the single battery leaks, the blocking piece can block part of the electrolyte from directly flowing to the adjacent battery pack in the first direction. The two ends of the blocking piece are respectively connected to the frame structure, so that no gap exists between the end part of the blocking piece and the frame structure, and the electrolyte cannot bypass the end part of the blocking piece to flow to the adjacent battery pack. According to the design, the probability that the electrolyte flows to the adjacent battery monomers during leakage can be effectively reduced, so that the possibility that the battery monomers in the two adjacent battery packs are communicated after leakage is reduced, and the reliability of the battery device is improved.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to battery devices and electrical equipment. Background Technology

[0002] Batteries typically consist of multiple rows of individual cells to meet the voltage and capacity requirements for output. However, due to the structural design limitations of traditional batteries, if electrolyte leakage occurs in one row of cells, it can easily flow to cells in adjacent rows, affecting the battery's reliability. Utility Model Content

[0003] Therefore, it is necessary to provide a battery device and electrical equipment to reduce the probability of electrolyte leakage flowing to adjacent battery cells and improve the reliability of the battery device.

[0004] In a first aspect, this application provides a battery device, which includes: a housing, including a base and a frame structure surrounding the base; a plurality of battery packs, disposed on the base and distributed sequentially along a first direction, and each battery pack includes individual battery cells distributed along a second direction intersecting the first direction; and a blocking member, protruding from the base and located between two adjacent battery packs, the blocking member extending along the second direction, and both ends of the blocking member being connected to the frame structure.

[0005] The aforementioned battery device includes a blocking member extending in a second direction on its base. This blocking member prevents a portion of the electrolyte from flowing directly into adjacent battery packs in the first direction when electrolyte leakage occurs in a single battery cell. Since both ends of the blocking member are connected to the frame structure, there is no gap between the ends of the blocking member and the frame structure, preventing electrolyte from bypassing the blocking member and flowing into adjacent battery packs. This design effectively reduces the probability of electrolyte leakage into adjacent battery cells, thereby reducing the possibility of leakage connecting battery cells in two adjacent battery packs and improving the reliability of the battery device.

[0006] In some embodiments, the frame structure includes a frame body and a protrusion. The frame body surrounds a base, and the protrusion protrudes from the base and is located on at least one side of the battery pack along a second direction. The end of a blocking member is connected to the frame body and / or the protrusion. This design, introducing the frame body and the protrusion, allows the end of the blocking member to connect to either the protrusion or the frame body, thereby reducing the probability of leaked electrolyte flowing into adjacent battery packs and improving the reliability of the battery device.

[0007] In some embodiments, the frame structure further includes a reinforcing member connected between the protrusion and the frame body. This design, with the reinforcing member between the protrusion and the frame body, strengthens the structural rigidity between them and improves the structural stability of the battery device.

[0008] In some embodiments, each battery cell includes a pressure relief mechanism, with at least a portion of the pressure relief mechanism located on at least one surface of two adjacent battery packs facing each other. This design, placing the pressure relief mechanism on the surfaces of two adjacent battery packs facing each other, allows gas to be ejected laterally in the event of thermal runaway, reducing the risk of top-mounted ejection and improving the reliability of the battery device.

[0009] In some embodiments, the battery device further includes a protective element disposed between two adjacent battery packs, and the projection of the protective element along a first direction covers at least a portion of the pressure relief mechanism. This design, with the protective element positioned between two adjacent battery packs, reduces the risk of the pressure relief mechanism directly spraying into adjacent battery packs, further improving the reliability of the battery device.

[0010] In some embodiments, the housing further includes a positioning member disposed on at least one side of the blocking member along a first direction, forming a slot with the blocking member, into which the protective member is engaged. This design, utilizing the slot, stably secures the protective member to the base, achieving stable and quick installation of the protective member, reducing the possibility of it shaking. Furthermore, it ensures the blocking members are close together, reducing the space occupied between adjacent battery packs and increasing the storage space for the battery packs within the housing.

[0011] In some embodiments, the height of the blocking component protruding from the base is greater than the height of the positioning component protruding from the base. This design, with the blocking component and the positioning component having different heights, allows the blocking component to better block the flow of electrolyte; at the same time, the relatively shorter positioning component reduces material usage while still achieving the snap-fit ​​of the protective component; it also reduces the space occupied along the height direction of the housing.

[0012] In some embodiments, the protective element is a mica sheet. This design allows the protective element to have better temperature resistance, thereby providing better protection against thermal runaway, reducing the likelihood of thermal runaway spreading to adjacent battery packs, and further improving the reliability of the battery device.

[0013] In some embodiments, the battery pack further includes a support, and the battery cells are configured as cylindrical structures, with at least some of the battery cells spaced apart on the support along a second direction. This design reduces the likelihood of electrolyte leakage from the cylindrical battery into adjacent battery packs, thereby improving the reliability of the cylindrical battery device.

[0014] Secondly, this application provides an electrical device that includes the battery device described above. Attached Figure Description

[0015] Figure 1 The diagram shows the structural features of a vehicle provided in some embodiments of this application.

[0016] Figure 2 Exploded views of battery devices provided in some embodiments of this application.

[0017] Figure 3 This is a partial structural exploded view of a battery device provided in some embodiments of this application.

[0018] Figure 4 This is a top view of the internal structure of a battery device provided in some embodiments of this application.

[0019] Figure 5 for Figure 4 A cross-sectional view of the structure along the AA direction.

[0020] Figure 6 for Figure 5 Enlarged view of the structure at point B in the middle circle.

[0021] 1000, Vehicle; 100, Battery Unit; 200, Controller; 300, Motor; 10, Battery Pack; 11, Battery Cell; 12, Bracket; 13, Pressure Relief Mechanism; 20, Housing; 201, First Part; 202, Second Part; 21, Base; 22, Frame Structure; 221, Frame Body; 222, Protrusion; 23, Blocking Component; 24, Reinforcing Component; 25, Positioning Component; 251, Slot; 26, Protective Component; X, First Direction; Y, Second Direction. Detailed Implementation

[0022] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0023] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms 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.

[0024] Furthermore, where the terms "first" and "second" appear, these terms are 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 at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0027] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0028] Currently, judging from market trends, the application of power batteries is becoming increasingly widespread. Power batteries are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but also extensively used in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace. With the continuous expansion of power battery applications, market demand is also constantly increasing.

[0029] Battery devices typically consist of multiple rows of individual cells to meet the voltage and capacity requirements of the battery output. However, if there is an electrolyte leak in one row of cells, the electrolyte can easily flow to cells in adjacent rows, causing the cells in the two adjacent rows to become connected, thereby reducing the reliability of the battery device.

[0030] Based on this, and addressing the problem in traditional battery devices where electrolyte leakage can easily connect adjacent battery cells, this application provides a battery device with a blocking member extending in a second direction on the base. When electrolyte leakage occurs in a battery cell, the blocking member can prevent a portion of the electrolyte from flowing directly into adjacent battery cells along a first direction. Since both ends of the blocking member are connected to the frame structure, there is no gap between the ends of the blocking member and the frame structure, preventing electrolyte from bypassing the ends of the blocking member and flowing into adjacent battery cells. This design effectively reduces the probability of electrolyte leakage flowing into adjacent battery cells, thereby reducing the possibility of leakage connecting battery cells in two adjacent battery cells and improving the reliability of the battery device.

[0031] The battery cells disclosed in this application can be used, but are not limited to, in electrical equipment such as vehicles, ships, or aircraft. A power system for such electrical equipment can be constructed using battery cells and battery devices disclosed in this application.

[0032] This application provides an electrical device that uses a battery as a power source. The electrical device can be, but is not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, 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.

[0033] For ease of explanation, the following embodiments will be described using a vehicle 1000 as an example of an electrical device according to an embodiment of this application.

[0034] Please refer to Figure 1 , Figure 1This is a schematic diagram of the structure of a vehicle 1000 provided in some embodiments of this application. The vehicle 1000 can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. A battery device 100 is provided inside the vehicle 1000, and the battery device 100 can be located at the bottom, front, or rear of the vehicle 1000. The battery device 100 can be used to power the vehicle 1000; for example, the battery device 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 device 100 to supply power to the motor 300, for example, to meet the power needs of the vehicle 1000 during starting, navigation, and driving.

[0035] In some embodiments of this application, the battery device 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.

[0036] Please refer to Figure 2 , Figure 2 This is an exploded view of a battery device 100 provided in some embodiments of this application. The battery device 100 includes a housing 20 and a battery cell 11, with the battery cell 11 housed within the housing 20. The housing 20 provides a receiving space for the battery cell 11, and the housing 20 can adopt various structures. In some embodiments, the housing 20 may include a first portion 201 and a second portion 202, which overlap each other, and together define a receiving space for accommodating the battery cell 11. The second portion 202 may be a hollow structure with one open end, and the first portion 201 may be a plate-like structure, with the first portion 201 covering the open side of the second portion 202 so that the first portion 201 and the second portion 202 together define the receiving space; alternatively, the first portion 201 and the second portion 202 may both be hollow structures with one open side, with the open side of the first portion 201 covering the open side of the second portion 202. Of course, the box 20 formed by the first part 201 and the second part 202 can be of various shapes, such as cylinder, cuboid, etc.

[0037] In the battery device 100, there can be multiple battery cells 11, which can be connected in series, parallel, or in a mixed manner. A mixed connection means that multiple battery cells 11 are connected in both series and parallel configurations. Multiple battery cells 11 can be directly connected in series, parallel, or in a mixed manner, and then the entire assembly of the multiple battery cells 11 is housed within the housing 20. Alternatively, the battery device 100 can also consist of multiple battery cells 11 first connected in series, parallel, or in a mixed manner to form battery modules, and then these battery modules are connected in series, parallel, or in a mixed manner to form a whole, which is also housed within the housing 20. The battery device 100 may also include other structures; for example, it may include a busbar component for electrical connection between the multiple battery cells 11.

[0038] Each battery cell 11 can be a secondary battery or a primary battery; it can also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited to these. The battery cell 11 can be cylindrical, flat, cuboid, or other shapes.

[0039] According to some embodiments of this application, please refer to Figure 3 This application provides a battery device 100, which includes a housing 20, a plurality of battery packs 10, and a blocking member 23. The housing 20 includes a base 21 and a frame structure 22 surrounding the base 21. The plurality of battery packs 10 are disposed on the base 21 and distributed sequentially along a first direction X, and each battery pack 10 includes a single battery cell 11 distributed along a second direction Y intersecting the first direction X. The blocking member 23 protrudes from the base 21 and is located between two adjacent battery packs 10. The blocking member 23 extends along the second direction Y, and its two ends are respectively connected to the frame structure 22.

[0040] The housing 20 refers to a structure that provides a closed environment for the battery cell 11. It may include a first part 201 and a second part 202, which overlap each other and together define a receiving space for accommodating the battery cell 11. In some examples, the second part 202 may include a base 21 and a frame structure 22 surrounding the base 21; that is, the second part 202 may be a hollow structure with one end open.

[0041] The base 21 refers to the structure within the housing 20 that provides support for the battery packs 10, which can be distributed above the base 21. The frame structure 22 refers to the structure surrounding each battery pack 10. When the frame structure 22 surrounds the base 21, the frame structure 22 and the base 21 can enclose a space of a certain depth, which facilitates the housing of the battery packs 10 within the housing 20.

[0042] In the battery pack 10, multiple battery cells 11 can be distributed. The battery cells 11 can be arranged in one or more rows along the height direction of the housing 20. In each row, the battery cells 11 are distributed sequentially along the second direction Y. The shape of the battery cells 11 can be various, such as, but not limited to, square or cylindrical. Specifically, in some examples, the battery cells 11 in the battery pack 10 are cylindrical batteries, and are distributed in at least two rows along the height direction of the housing 20. In each row, the battery cells 11 are distributed along the second direction Y, and the second direction Y, the first direction X, and the height direction are perpendicular to each other.

[0043] Furthermore, the blocking member 23 protrudes from the base 21, so that even if electrolyte leaks in one of the battery packs 10, the protruding blocking member 23 can prevent the leaked electrolyte from flowing directly to the battery cells 11 in the adjacent battery pack 10. Since the blocking member 23 extends along the second direction Y and its two ends are connected to the frame structure 22, there is no gap between the two ends of the blocking member 23, and the leaked electrolyte cannot bypass the ends of the blocking member 23 and enter the adjacent battery pack 10.

[0044] The end of the blocking member 23 extends onto the frame structure 22, making the blocking member 23 and the frame structure 22 integrally connected. This prevents leaked electrolyte from bypassing the end of the blocking member 23 and flowing into the adjacent battery pack 10. The connection between the blocking member 23 and the frame structure 22 can be, but is not limited to, bolted connection, snap-fit, adhesive bonding, welding, etc., or it can be integrally formed.

[0045] Furthermore, the number of blocking members 23 can be determined according to the number of battery packs 10. For example, there may be multiple blocking members 23, all of which are distributed at intervals along the first direction X and are respectively placed between two adjacent battery packs 10.

[0046] This design effectively reduces the probability of electrolyte leakage flowing to adjacent battery cells 11, thereby reducing the possibility of leakage connecting battery cells 11 in two adjacent battery packs 10 and improving the reliability of the battery device 100.

[0047] Optionally, according to some embodiments of this application, please refer to Figure 3 The frame structure 22 includes a frame body 221 and a protrusion 222. The frame body 221 surrounds the base 21, and the protrusion 222 protrudes from the base 21 and is located on at least one side of the battery pack 10 along the second direction Y. The end of the blocking member 23 is connected to the frame body 221 and / or the protrusion 222.

[0048] The frame body 221 refers to the outer ring structure of the frame structure 22, which can surround the outer periphery of each battery pack 10. The protrusion 222 refers to the structure that protrudes from the base 21 and is located on at least one side of the battery pack 10 along the second direction Y, so as to prevent the leaked electrolyte from continuing to flow along the second direction Y.

[0049] The protrusion 222 can be disposed on one side of the battery pack 10 along the second direction Y, or on both sides of the battery pack 10 along the second direction Y. When the protrusion 222 is disposed on one side of the battery pack 10 along the second direction Y, one end of the blocking member 23 can be connected to the protrusion 222, and the other end can be connected to the frame body 221; when the protrusion 222 is disposed on both sides of the battery pack 10 along the second direction Y, both ends of the blocking member 23 can be connected to the corresponding protrusion 222.

[0050] For specific examples, please refer to Figure 3 The protrusions 222 are located on opposite sides of each battery pack 10 along the second direction Y, and the two ends of the blocking member 23 extend to the corresponding protrusions 222.

[0051] This design introduces the frame body 221 and the protrusion 222, so that the end of the blocking member 23 can be connected to the protrusion 222 or the frame body 221, thereby reducing the probability of leaked electrolyte flowing into the adjacent battery pack 10 and improving the reliability of the battery device 100.

[0052] Optionally, according to some embodiments of this application, please refer to Figure 3 The frame structure 22 also includes a reinforcing member 24, which is connected between the protrusion 222 and the frame body 221.

[0053] The reinforcing member 24 refers to the structure connecting the protrusion 222 and the frame body 221, which can enhance the structural strength between the protrusion 222 and the frame body 221. There can be one or more reinforcing members 24 on the same protrusion 222. When there are multiple reinforcing members 24, all reinforcing members 24 can be distributed at intervals along the first direction X.

[0054] With this design, a reinforcing member 24 is provided between the protrusion 222 and the frame body 221, which can strengthen the structural strength between the protrusion 222 and the frame body 221 and improve the structural stability of the battery device 100.

[0055] Optionally, according to some embodiments of this application, please refer to Figure 3 Each battery cell 11 includes a pressure relief mechanism 13, and at least a portion of the pressure relief mechanism 13 is located on at least one surface of two adjacent battery packs 10 facing each other.

[0056] The pressure relief mechanism 13 refers to the structure that can be opened or destroyed when the internal pressure of the battery cell 11 exceeds the threshold, so that the battery cell 11 can release pressure to the outside. There are various design positions of the pressure relief mechanism 13 in the battery cell 11. For example, the pressure relief mechanism 13 can be set at the top, bottom or side of the battery cell 11.

[0057] Meanwhile, the pressure relief mechanism 13 of the battery cell 11 can be positioned facing or away from the base 21, or facing the frame structure 22. When the pressure relief mechanism 13 of the battery cell 11 faces the base 21, if the battery device 100 experiences thermal runaway, the internal air pressure of the battery cell 11 can be ejected towards the bottom; when the pressure relief mechanism 13 of the battery cell 11 faces the frame structure 22, the internal air pressure of the battery cell 11 can be ejected towards the side. Both of these configurations can reduce the probability of passenger injury caused by high-temperature flames or gases being ejected towards the passenger compartment during thermal runaway.

[0058] In addition, it is easy to understand that a certain gap can be maintained between two adjacent battery packs 10, so that there is a certain amount of venting space between the two adjacent battery packs 10, which makes the venting smooth.

[0059] This design places the pressure relief mechanism 13 on the surfaces of two adjacent battery packs 10 facing each other, so that in the event of thermal runaway, the gas is ejected to the side, reducing the risk of top ejection and improving the reliability of the battery device 100.

[0060] Optionally, according to some embodiments of this application, please refer to Figure 4 and Figure 5 The battery device 100 also includes a protective member 26, which is disposed between two adjacent battery packs 10, and the projection of the protective member 26 along the first direction X can cover at least part of the pressure relief mechanism 13.

[0061] When a cell 11 in one of the battery packs 10 experiences thermal runaway, because the pressure relief mechanism 13 is located on the surfaces of the two adjacent battery packs 10 facing each other, the cell 11 will release pressure towards the adjacent battery pack 10, making the cell 11 in the adjacent battery pack 10 prone to failure as well. Therefore, a protective element 26 is provided between the two adjacent battery packs 10 to reduce the direct pressure release from the pressure relief mechanism 13 towards the adjacent battery packs 10.

[0062] The protective component 26 located between two adjacent battery packs 10 can be fixed to the base 21 or the frame structure 22; of course, it can also be fixed to the inner wall of the housing 20 facing the base 21. For example, the housing 20 includes a first part 201 and a second part 202. The second part 202 includes the base 21 and the frame structure 22. The first part 201 covers the end of the frame structure 22 away from the base 21. In this case, the protective component 26 can also be fixed to the first part 201.

[0063] Furthermore, the connection method of the protective component 26 within the housing 20 can be, but is not limited to, bolt connection, snap-fit, welding, or bonding. To achieve effective protection, in some examples, the height of the protective component 26 can be higher than the height of each pressure relief mechanism 13. Simultaneously, to reduce the space occupied in the vertical direction, the height of the protective component 26 can be less than the height of the battery pack 10, so that the protective component 26 does not protrude beyond the battery pack 10 along the vertical direction of the housing 20.

[0064] With this design, a protective element 26 is placed between two adjacent battery packs 10, which can reduce the risk of the pressure relief mechanism 13 directly spraying into the adjacent battery packs 10, and further improve the reliability of the battery device 100.

[0065] Optionally, according to some embodiments of this application, please refer to Figure 6 The housing 20 also includes a positioning member 25, which is located on at least one side of the blocking member 23 along the first direction X, and forms a slot 251 between the positioning member 25 and the blocking member 23, and the protective member 26 is inserted into the slot 251.

[0066] It is known that a slot 251 is formed between the positioning member 25 and the blocking member 23. Using the slot 251, the protective member 26 is stably locked on the base 21, which not only achieves stable and quick installation of the protective member 26, but also makes the blocking member 23 close together, reducing the space occupied between two adjacent battery packs 10, which is conducive to increasing the storage space of the battery pack 10 in the housing 20.

[0067] The positioning component 25 can be fixed to the base 21 or to one side of the blocking component 23. Furthermore, the positioning component 25 can be connected to the base 21 or the blocking component 23 in various ways, such as, but not limited to, bolt connection, snap-fit, adhesive bonding, welding, etc.

[0068] Furthermore, the positioning element 25 can extend along the second direction Y, and its two ends extend to the frame structure 22 respectively. Of course, there can also be multiple positioning elements 25, with multiple positioning elements 25 distributed at intervals along the second direction Y, and each positioning element 25 forming a slot 251 with the blocking element 23, so that the same protective element 26 can be locked in each slot 251.

[0069] This design, using the slot 251, stably secures the protective component 26 to the base 21, not only achieving stable and quick installation of the protective component 26 and reducing the possibility of the protective component 26 shaking, but also making the blocking component 23 close together, reducing the space occupied between two adjacent battery packs 10, which is conducive to increasing the storage space of the battery pack 10 in the housing 20.

[0070] Optionally, according to some embodiments of this application, please refer to Figure 6 The height of the blocking member 23 protruding on the base 21 is greater than the height of the positioning member 25 protruding on the base 21.

[0071] The height of the blocking component 23 is greater than that of the positioning component 25, which can better block the flow of electrolyte. The relatively shorter positioning component 25 reduces the amount of material used while still allowing the protective component 26 to engage; at the same time, it also reduces the space occupied along the height direction of the housing 20.

[0072] To facilitate understanding of the height of the blocking member 23 protruding on the base 21 and the height of the positioning member 25 protruding on the base 21, Figure 6 For example, the height of the protrusion of the blocking member 23 on the base 21 can be [missing information]. Figure 6 The height represented by h1 is the height of the protrusion of the positioning component 25 on the base 21. Figure 6 h2 represents the height.

[0073] In other examples, the height of the blocking member 23 protruding on the base 21 may be equal to the height of the positioning member 25 protruding on the base 21.

[0074] This design, with the blocking component 23 and the positioning component 25 having different heights, allows the blocking component 23 to better block the flow of electrolyte. At the same time, the relatively short positioning component 25 reduces material usage while still allowing the protective component 26 to snap into place. It also reduces the space occupied along the height of the housing 20.

[0075] According to some embodiments of this application, the protective element 26 may optionally be a mica plate.

[0076] This design enables the protective component 26 to have better temperature resistance, thereby providing better protection against thermal runaway, reducing the probability of thermal runaway spreading to adjacent battery packs 10, and further improving the reliability of the battery device 100.

[0077] Optionally, according to some embodiments of this application, please refer to Figure 3 The battery pack 10 also includes a support 12, and the battery cells 11 are constructed as cylindrical structures, with at least some of the battery cells 11 spaced apart on the support 12 along the second direction Y.

[0078] As can be seen, the battery cell 11 in this embodiment is a cylindrical battery. Each battery cell 11 is integrated onto the support 12. The battery cells 11 can be arranged in a single row or multiple rows on the support 12. For example, the battery cells 11 can be designed in two rows along the height direction of the housing 20 on the support 12, with the battery cells 11 in each row spaced apart along the second direction Y. Furthermore, when the battery cell 11 includes a pressure relief mechanism 13, the pressure relief mechanism 13 can be located at the bottom of the battery cell 11.

[0079] This design reduces the likelihood of electrolyte leakage from the cylindrical battery flowing into adjacent battery packs 10, thereby improving the reliability of the cylindrical battery device 100.

[0080] According to some embodiments of this application, this application provides an electrical device, which includes the battery device 100 of any of the above.

[0081] According to some embodiments of this application, please refer to Figures 3 to 6 This application provides a battery device 100, which includes a housing 20, battery packs 10, a protective member 26, a positioning member 25, and a blocking member 23. The housing 20 includes a base 21 and a frame structure 22 surrounding the base 21. Multiple battery packs 10 are disposed on the base 21 along a first direction X. The blocking member 23 is disposed on the base 21 and located between two adjacent battery packs 10, with both ends connected to the frame structure 22. The positioning member 25 is disposed on one side of the blocking member 23 and forms a slot 251 with the blocking member 23. The protective member 26 is engaged in the slot 251 and is positioned between two adjacent battery packs 10.

[0082] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0083] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A battery device, characterized in that, The battery device includes: The housing (20) includes a base (21) and a frame structure (22) surrounding the base (21); Multiple battery packs (10) are disposed on the base (21) and distributed sequentially along a first direction (X), and each battery pack (10) includes battery cells (11) distributed along a second direction (Y) intersecting the first direction (X); A blocking member (23) protrudes from the base (21) and is located between two adjacent battery packs (10). The blocking member (23) extends along the second direction (Y), and both ends of the blocking member (23) are respectively connected to the frame structure (22).

2. The battery device according to claim 1, characterized in that, The frame structure (22) includes a frame body (221) and a protrusion (222). The frame body (221) surrounds the base (21), and the protrusion (222) protrudes from the base (21) and is located on at least one side of the battery pack (10) along the second direction (Y). The end of the blocking member (23) is connected to the frame body (221) and / or the protrusion (222).

3. The battery device according to claim 2, characterized in that, The frame structure (22) also includes a reinforcing member (24), which is connected between the protrusion (222) and the frame body (221).

4. The battery device according to any one of claims 1-3, characterized in that, Each of the battery cells (11) includes a pressure relief mechanism (13), at least a portion of which is located on at least one surface of two adjacent battery packs (10) facing each other.

5. The battery device according to claim 4, characterized in that, The battery device further includes a protective member (26) which is spaced between two adjacent battery packs (10), and the projection of the protective member (26) along the first direction (X) can cover at least part of the pressure relief mechanism (13).

6. The battery device according to claim 5, characterized in that, The housing (20) further includes a positioning member (25), which is disposed on at least one side of the blocking member (23) along the first direction (X) and forms a slot (251) with the blocking member (23), and the protective member (26) is inserted into the slot (251).

7. The battery device according to claim 6, characterized in that, The height of the blocking member (23) protruding on the base (21) is greater than the height of the positioning member (25) protruding on the base (21).

8. The battery device according to claim 5, characterized in that, The protective component (26) is a mica plate.

9. The battery device according to any one of claims 1-3, characterized in that, The battery pack (10) also includes a support (12), and the battery cells (11) are constructed as cylindrical structures, with at least some of the battery cells (11) spaced apart on the support (12) along the second direction (Y).

10. An electrical appliance, characterized in that, The electrical equipment includes the battery device according to any one of claims 1-9.

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