Battery device and electric apparatus

Abstract

The present application discloses a battery device and an electric apparatus. The battery device comprises a case, locking structures, and battery cells arranged in the case. The case has a top surface and a bottom surface arranged opposite to each other in the height direction thereof, and a side surface connecting the top surface and the bottom surface; reinforcing ribs are provided on the top surface, and first connection portions are provided on each reinforcing rib; the locking structures are mounted on the side surface or the bottom surface; and second connection portions are further provided on each locking structure. Both the first connection portions and the second connection portions are used for connection to beams of a vehicle, thereby achieving higher connection stability, and improving the torsional rigidity of the entire vehicle.

Description

Battery devices and electrical equipment

[0001] Related applications

[0002] This application claims priority to Chinese patent application No. 202520561829.2, filed on March 28, 2025, entitled "Battery Device and Electrical Equipment", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of battery device technology, and in particular to a battery device and electrical equipment. Background Technology

[0004] Battery units are installed in electrical equipment. Taking a vehicle as an example, the battery unit is typically mounted on the vehicle's structural beams. With increasing customer demands, there is a need for lightweight electric vehicles to improve driving range. However, lighter weight means reducing the use of reinforcing components and connecting parts, or reducing material dimensions, resulting in lower torsional stiffness in the vehicle. Summary of the Invention

[0005] The main purpose of this application is to provide a battery device and electrical equipment that aims to at least improve the technical problem of low torsional stiffness in vehicles.

[0006] To achieve the above objectives, according to some embodiments of this application, this application provides a battery device, including a housing, a locking structure, and a battery cell disposed within the housing. The housing has a top surface and a bottom surface disposed opposite to each other along its height direction, and a side surface connecting the top surface and the bottom surface. A reinforcing rib is provided on the top surface, and a first connecting position is provided on the reinforcing rib. The locking structure is mounted on the side surface or the bottom surface. A second connecting position is also provided on the locking structure.

[0007] By setting first and second connecting positions on the top and bottom surfaces respectively, or on both the top and side surfaces respectively, the battery pack is secured to the vehicle's beam from two dimensions through these connecting positions on two surfaces. This improves the locking strength between the battery pack and the beam, thereby enhancing the overall torsional rigidity of the vehicle. Simultaneously, reinforcing ribs are provided on the top surface, with the first connecting positions located on these ribs, to reduce the risk of damage from excessive loads on the top surface.

[0008] In some embodiments, the first connection position includes a first mounting hole, and there are multiple reinforcing ribs arranged at intervals, with each reinforcing rib having a first mounting hole.

[0009] By setting multiple reinforcing ribs spaced apart and providing a first mounting hole on each reinforcing rib, the connection strength can be improved and damage to the top surface can be reduced.

[0010] In some embodiments, the locking structure includes a tab disposed on the side, the tab including a first connecting plate, a transition plate and a second connecting plate connected in sequence, the first connecting plate being mounted on the side and the second connecting plate being provided with a second connecting position.

[0011] By setting tabs on the side, the battery pack housing and main beam are connected through the tabs, and the battery pack is installed on the main beam, thus achieving the installation and fixation of the battery pack.

[0012] In some embodiments, the side protrudes outward with an extension section, the transition plate extends along the height direction of the housing, the first connecting plate and the second connecting plate are respectively disposed on opposite sides of the transition plate along the extension direction and extend in opposite directions, the first connecting plate is connected to the extension section, and the second connecting position includes a second mounting hole, the central axis of the second mounting hole is disposed along the height direction.

[0013] By providing an extension section on the side of the enclosure, it is easier to install the electrode lugs onto the enclosure, and the connection structure is more stable, which can reduce damage to the strength of the enclosure structure itself. In addition, pointing the second connecting plate horizontally to the top or bottom of the main beam can reduce damage to the strength of the side of the main beam and reduce the space occupied by the side of the main beam.

[0014] In some embodiments, the transition plate extends in a direction perpendicular to the side surface, the first connecting plate and the second connecting plate are respectively disposed on opposite sides of the transition plate in the extending direction, the first connecting plate and the side surface are connected by a locking member, and the second connecting position includes a second mounting hole, the central axis of the second mounting hole being disposed perpendicular to the side surface.

[0015] By setting a transition plate extending in a direction perpendicular to the side, the first connecting plate and the second connecting plate are respectively set on opposite sides of the transition plate along the extension direction, and the second connecting position is set as a second mounting hole in the horizontal direction to connect with the main beam, which is a relatively convenient connection method.

[0016] In some embodiments, the locking structure includes a support member, the support member including a support plate and a transition plate connected to each other, the support plate being disposed on the bottom surface, the transition plate being disposed on the side surface and spaced apart from the side surface, and the transition plate being provided with a second connection position.

[0017] By setting up support components including a support plate and an adapter plate, the support plate is set on the bottom surface for locking, and the adapter plate is used to connect with the vehicle's beam, thereby fixing the support components on the beam and thus achieving the locking of the battery device on the beam.

[0018] In some embodiments, the number of adapter plates is two, and the two adapter plates are respectively connected to both ends of the support plate.

[0019] By setting two adapter plates at both ends of the support plate, the enclosure can be locked from both sides, resulting in more even force distribution and a more secure installation.

[0020] In some embodiments, the support plate includes a groove with a slot and a flange disposed at the edge of the slot. The bottom surface and the flange are connected by a locking attachment. The groove has an energy-absorbing space communicating with the slot, and the slot is disposed facing the bottom surface.

[0021] The tank can deform to absorb some of the energy, thereby reducing the damage that collisions may cause to the tank.

[0022] The battery device is fixed to the support plate by setting a flange to connect with the bottom surface. By setting an energy-absorbing space in the tank, the external impact can be buffered through deformation, thus protecting the battery device.

[0023] In some embodiments, the support plate is spaced apart from the bottom surface.

[0024] By setting a gap between the support plate and the bottom surface, space is reserved for deformation of the support plate, which can provide better protection for the box.

[0025] In some embodiments, the locking structure includes a support member, which includes a support plate, an adapter plate, and a mounting plate connected in sequence. The support plate is disposed on the bottom surface, the adapter plate is connected to the side surface, the mounting plate is connected to the adapter plate, and the mounting plate is provided with a second connection position.

[0026] The support structure comprises a support plate, an adapter plate, and a mounting plate connected in sequence, with a second connection point on the mounting plate. The support plate provides support and connection to the bottom surface, the adapter plate connects to the side of the housing, and the mounting plate connects to the main beam. This embodiment achieves three-sided locking of the housing's side, top, and bottom surfaces, resulting in a more secure connection.

[0027] In some embodiments, the housing includes a body and a cover that closes an opening in the body, the cover having a top surface, the body having a bottom surface, and the sidewalls of the cover and the body cooperating to form the side surface.

[0028] By setting the enclosure to include the main body and a cover plate that closes the opening of the main body, the main body and the cover plate are detachably connected, making installation and disassembly very convenient.

[0029] 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, specific embodiments of this application are given below. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art 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 the structures shown in these drawings without creative effort.

[0031] Figure 1 is a schematic diagram of the vehicle structure according to some embodiments of this application;

[0032] Figure 2 is an exploded structural diagram of a battery device according to some embodiments of this application;

[0033] Figure 3 is a three-dimensional structural schematic diagram of a battery device according to some embodiments of this application;

[0034] Figure 4 is an enlarged structural diagram of point A in Figure 3;

[0035] Figure 5 is a three-dimensional structural schematic diagram of a portion of the vehicle structure according to some embodiments of this application;

[0036] Figure 6 is another perspective structural schematic diagram of a portion of the vehicle structure according to some embodiments of this application;

[0037] Figure 7 is an enlarged structural diagram of point B in Figure 6;

[0038] Figure 8 is another perspective structural schematic diagram of the battery device according to some embodiments of this application;

[0039] Figure 9 is a structural schematic diagram from another perspective of Figure 8;

[0040] Figure 10 is another three-dimensional structural schematic diagram of a portion of the vehicle structure according to some embodiments of this application;

[0041] Figure 11 is another perspective structural schematic diagram of the battery device according to some embodiments of this application;

[0042] Figure 12 is another perspective structural schematic diagram of a portion of the vehicle structure according to some embodiments of this application;

[0043] Figure 13 is an enlarged structural diagram of point C in Figure 12.

[0044] Reference numerals: 1000, Vehicle; 100, Battery assembly; 200, Control device; 300, Motor; 10, Housing; 101, Cover plate; 102, Body; 11, Top surface; 111, Reinforcing rib; 112, First connection position; 1121, First mounting hole; 12, Side; 13, Bottom surface; 14, Extended section; 20, Battery cell; 30, Locking structure; 31, Tab; 311, First connecting plate; 312, Transition plate; 313, Second connecting plate; 32, Second connection position; 33, Support member; 331, Support plate; 3311, Channel; 3312, Flanged edge; 3313, Energy absorption space; 332, Adapter plate; 333, Mounting plate; 40, Crossbeam; 50, Main beam; 60, First threaded component; 70, Second threaded component.

[0045] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0046] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0047] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this embodiment are only used to explain the relative positional relationship and movement of each component in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indicator will also change accordingly.

[0048] Furthermore, the use of terms such as "first," "second," etc., in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0049] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean 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 according to the specific circumstances.

[0050] Furthermore, the technical solutions of the various embodiments of this application can be combined with each other, but only if they are feasible to those skilled in the art. If a combination of technical solutions contradicts each other or cannot be implemented, it should be considered that such a combination does not exist and is not within the scope of protection claimed in this application. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0051] The descriptions of directions such as "up", "down", "front", "back", "left", and "right" in this application are based on the directions shown in the figure and are only used to explain the relative positional relationship between the components in the posture shown in the figure. If the specific posture changes, the directional indication will also change accordingly.

[0052] 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 widely applied in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in aerospace and other fields. With the continuous expansion of power battery applications, market demand is also constantly increasing.

[0053] Battery units are installed in electrical equipment. Taking a vehicle as an example, the battery unit is typically mounted on the vehicle's structural beams. With increasing customer demands, there is a need for lightweight electric vehicles to improve driving range. However, lighter weight means reducing the use of reinforcing components and connecting parts, or reducing material dimensions, resulting in lower torsional stiffness in the vehicle.

[0054] After careful research, the applicant discovered that after the battery device is installed on the beam, due to its large weight, even slight shaking during use will cause significant shaking of the entire vehicle. The loose installation structure of the battery device not only fails to play a positive role in the torsional stiffness of the vehicle, but also the shaking of the battery device will bring a large torque to the beam, making the beam subject to greater stress and prone to deformation and other risks.

[0055] To this end, the applicant provides a new structural design for a battery device, comprising a housing, a locking structure, and individual battery cells disposed within the housing. The housing has a top surface and a bottom surface arranged opposite each other along its height, and a side surface connecting the top and bottom surfaces. A reinforcing rib is provided on the top surface, and a first connecting position is provided on the reinforcing rib. The locking structure is mounted on the side or bottom surface; a second connecting position is also provided on the locking structure. Both the first and second connecting positions are used for connection with the vehicle's beam structure, resulting in higher connection stability and improving the overall torsional rigidity of the vehicle.

[0056] Please refer to Figure 1, which is a structural schematic diagram of a vehicle 1000 provided in some embodiments of this application. The electrical equipment can be the vehicle 1000, which 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 installed 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 control device 200 and a motor 300. The control device 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.

[0057] 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.

[0058] Please refer to Figure 2, which is an exploded structural diagram of a battery device 100 provided in some embodiments of this application. The battery device 100 includes a housing 10 and a battery cell 20, with the battery cell 20 housed within the housing 10. The housing 10 provides a cavity for the battery cell 20, and the housing 10 can adopt various structures. In some embodiments, the housing 10 may include a cover plate 101 and a body 102, with the cover plate 101 and body 102 covering each other, and the cover plate 101 and body 102 together defining a cavity for accommodating the battery cell 20. The body 102 may be a hollow structure with one open end, and the cover plate 101 may be a plate-like structure, with the cover plate 101 covering the open side of the body 102 so that the cover plate 101 and body 102 together define the cavity; alternatively, the cover plate 101 and body 102 may both be hollow structures with one open side, with the open side of the cover plate 101 covering the open side of the body 102. Of course, the box 10 formed by the cover plate 101 and the body 102 can be of various shapes, such as a cylinder, a cuboid, etc.

[0059] In the battery device 100, there can be multiple battery cells 20, which can be connected in series, parallel, or in a mixed configuration. A mixed configuration means that multiple battery cells 20 are connected in both series and parallel connections. Multiple battery cells 20 can be directly connected in series, parallel, or in a mixed configuration, and then the entire assembly of the multiple battery cells 20 is housed within the housing 10. Alternatively, the battery device 100 can also consist of multiple battery cells 20 first connected in series, parallel, or in a mixed configuration to form battery modules, and then these battery modules are connected in series, parallel, or in a mixed configuration to form a whole, which is also housed within the housing 10. 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 20.

[0060] Each battery cell 20 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 20 can be cylindrical, flat, cuboid, or other shapes.

[0061] Referring to Figures 3, 5, and 9, according to some embodiments of this application, this application provides a battery device 100, including a housing 10, a locking structure 30, and a battery cell 20 disposed within the housing 10. The housing 10 has a top surface 11 and a bottom surface 13 disposed opposite to each other along its height direction, and a side surface 12 connecting the top surface 11 and the bottom surface 13. A reinforcing rib 111 is provided on the top surface 11, and a first connecting position 112 is provided on the reinforcing rib 111. The locking structure 30 is installed on the side surface 12 or the bottom surface 13. A second connecting position 32 is also provided on the locking structure 30.

[0062] It should be noted that in the various embodiments of this application, the height direction of the housing 10 refers to the direction perpendicular to the top surface 11 or bottom surface 13 of the housing 10. The height direction of the housing 10 is shown by arrow Z in Figure 3, which is generally the vertical direction when the battery device 100 is in use. The length direction is shown by arrow X in Figure 3, which is also the extension direction of the main beam 50 in the vehicle 1000. The width direction is shown by arrow Y in Figure 3, which is also the extension direction of the crossbeam 40 in the vehicle 1000. Generally speaking, in the use state, when the battery device 100 is installed on the vehicle 1000, the bottom surface 13 is located on the side facing the ground, that is, at the bottom, the top surface 11 is located at the top, and the side surface 12 is the outer surface of the side panel connecting the top surface 11 and the bottom surface 13. The top surface 11, the bottom surface 13 and the side surface 12 form a cavity, and multiple battery cells 20 are disposed in the cavity.

[0063] After careful research, the applicant discovered that previous studies on the torsional stiffness of vehicle 1000 focused on the vehicle frame, which includes beams. To increase the torsional stiffness of vehicle 1000, the applicant considered that the battery unit 100 could be tightly attached to the beams. When testing torsional stiffness, the battery unit 100 and the vehicle frame could be considered as a whole. This would increase the overall weight, which would help improve the torsional stiffness of the vehicle and reduce the risk of deformation of the beams caused by the swaying of the battery unit 100.

[0064] Traditional methods to improve locking strength typically involve adding multiple locking positions to the side 12 of the housing 10. After repeated verification, the applicant found that while this method can improve locking strength to some extent, it still cannot adequately meet the customer's requirements for torsional stiffness, and its effectiveness in practical applications is less than ideal. Therefore, the applicant seeks a method to lock the housing 10 from multiple dimensions. Specifically, a first connecting position 112 can be provided on the top surface 11 of the housing 10, and a second connecting position 32 can be provided on the side 12 or bottom surface 13 of the housing 10. The first connecting position 112 and the second connecting position 32 can be connected to the beam, respectively. This allows the battery device 100 to be installed through at least two locking surfaces or at least two dimensions (top surface 11 and bottom surface 13, or top surface 11 and side surface 12), increasing the locking dimensions of the locking structure 30. This makes the connection between the battery device 100 and the beam more secure, and after the battery device 100 is installed on the beam, there is less room for swaying, which helps improve the torsional stiffness of the vehicle 1000. In a specific application scenario, the beam includes two parallel main beams 50 and crossbeams 40 respectively connected to both ends of the two main beams 50. After the battery device 100 is installed on the beam, the crossbeams 40 are positioned above the top surface 11 of the battery device 100. The top surface 11 of the battery device 100 is hung on the crossbeams 40 via a first connecting position 112. If it can be connected by bolts or screws, the top surface 11 needs to withstand a large tensile force. However, the top surface 11 of a conventional battery device 100 does not need to withstand a large pressure or tensile force, so the strength of a conventional top surface 11 is low. In the embodiments of this application, a reinforcing rib 111 is provided on the top surface 11 to strengthen the structure of the top surface 11, and the first connecting position 112 is located on the reinforcing rib 111, which can reduce the risk of damage to the top surface 11 due to excessive force.

[0065] By providing a first connecting position 112 and a second connecting position 32 on the top surface 11 and the bottom surface 13 respectively, or by providing a first connecting position 112 and a second connecting position 32 on the top surface 11 and the side surface 12 respectively, the battery device 100 is locked to the beam of the vehicle 1000 from two dimensions through connecting positions on two surfaces. This helps to improve the locking strength between the battery device 100 and the beam, thereby improving the torsional rigidity of the entire vehicle. At the same time, a reinforcing rib 111 is provided on the top surface 11, and the first connecting position 112 is provided on the reinforcing rib 111 to reduce the risk of the top surface 11 being damaged by excessive load.

[0066] Referring to FIG3, in some embodiments, the first connection position 112 includes a first mounting hole 1121, and there are multiple reinforcing ribs 111 arranged at intervals, with each reinforcing rib 111 having a first mounting hole 1121.

[0067] The reinforcing ribs 111 may include multiple ribs, which may be spaced apart along the length of the housing 10 or along the width of the housing 10. Taking the arrangement of the reinforcing ribs 111 along the width of the housing 10 as an example, the first mounting hole 1121 is provided on the reinforcing rib 111, which can reduce the risk of damage to the top surface 11 caused by directly mounting it on the top surface 11. Specifically, the first mounting hole 1121 may include multiple sub-holes, which are spaced apart on the reinforcing rib 111.

[0068] By setting multiple reinforcing ribs 111 spaced apart and providing a first mounting hole 1121 on each reinforcing rib 111, it is beneficial to improve the connection strength and reduce damage to the top surface 11.

[0069] Referring to Figures 3 and 4, in some embodiments, the locking structure 30 includes a tab 31 disposed on the side 12. The tab 31 includes a first connecting plate 311, a transition plate 312, and a second connecting plate 313 connected in sequence. The first connecting plate 311 is installed on the side 12, and the second connecting plate 313 is provided with a second connecting position 32.

[0070] When the locking structure 30 is located on the side 12, the locking structure 30 may include tabs 31 installed on the side 12, which are connected to the main beams 50 located on both sides of the battery device 100. Specifically, the tab 31 structure may include a first connecting plate 311, a transition plate 312, and a second connecting plate 313 connected end to end in sequence. The first connecting plate 311 is installed on the side 12, and the specific installation method may be welding, threaded connection, or snap-fit. The second connecting plate 313 is provided with a second connecting position 32, which is used to connect with the main beam 50. In this way, the battery device 100 is installed on the main beam 50 through the tabs 31, which serves to fix the battery device 100.

[0071] By setting tabs 31 on the side 12, and connecting the housing 10 of the battery device 100 and the main beam 50 through the tabs 31, the battery device 100 is installed on the main beam 50, thereby realizing the installation and fixation of the battery device 100.

[0072] Referring to Figures 4, 6, and 7, in some embodiments, the side 12 is provided with an outwardly protruding section 14, the transition plate 312 extends along the height direction of the housing 10, the first connecting plate 311 and the second connecting plate 313 are respectively provided on opposite sides of the transition plate 312 along the extension direction and extend in opposite directions, the first connecting plate 311 is connected to the protruding section 14, and the second connecting position 32 includes a second mounting hole, the central axis of the second mounting hole is set along the height direction.

[0073] As a specific embodiment of the tab 31 structure, the battery device 100 has protruding sections 14 on both sides of its side 12 facing the main beam 50. Alternatively, the battery device 100 has protruding sections 14 on both sides along the width direction of the housing 10. The protruding section 14 can be an outer edge extending from approximately the middle of the side, and can be strip-shaped or plate-shaped. A connecting structure is provided on the protruding section 14 for connecting to the first connecting plate 311. The protruding section 14 mainly facilitates the connection between the first connecting plate 311 and the housing 10. The connection method can be snap-fit, threaded connection, or welding, etc. This application does not specifically limit the connection method. The transition plate 312 can be a vertically arranged plate. A first connecting plate 311 is provided on the top of the transition plate 312. The first connecting plate 311 extends towards the direction of the housing 10 to facilitate connection with the protruding section 14, thereby installing the electrode tab 31 on the housing 10. The second connecting plate 313 extends towards the side away from the housing 10. When the battery device 100 is installed on the vehicle 1000, the second connecting plate 313 extends towards the direction of the main beam 50. A second mounting hole is provided on the second connecting position 32, and the central axis of the second mounting hole is set along the height direction, that is, in the vertical direction. In this way, the second connecting plate 313 can be connected to the top or bottom of the main beam 50. A threaded hole is provided on the top or bottom. The second connecting plate 313 is installed on the main beam 50 by passing the second threaded part 70 through the second mounting hole and the threaded hole, as shown in Figure 6 or Figure 7. The second connecting plate 313 is connected to the bottom of the main beam 50. Setting the threaded hole at the top or bottom of the main beam 50 can reduce the damage to the side strength of the main beam 50.

[0074] By providing an extension section 14 on the side 12 of the housing 10, it is convenient to install the electrode lug 31 onto the housing 10, and the connection structure is more stable, which can reduce damage to the structural strength of the housing 10 itself. In addition, pointing the second connecting plate 313 horizontally to the top or bottom of the main beam 50 can reduce damage to the side strength of the main beam 50 and reduce the space occupied on the side of the main beam 50.

[0075] In some embodiments, the transition plate 312 extends in a direction perpendicular to the side 12, and the first connecting plate 311 and the second connecting plate 313 are respectively disposed on opposite sides of the transition plate 312 in the extending direction. The first connecting plate 311 and the side 12 are connected by a locking member, and the second connecting position 32 includes a second mounting hole, the central axis of which is perpendicular to the side 12.

[0076] As a specific embodiment of the tab 31 structure, the transition plate 312 is arranged perpendicular to the side 12, that is, horizontally, and along the width of the housing 10. The first connecting plate 311 and the second connecting plate 313 are respectively arranged on both sides of the transition plate 312 in the horizontal direction. The first connecting plate 311 and the second connecting plate 313 can be arranged in the height direction, that is, vertically, and can extend in the same direction or in opposite directions. The first connecting plate 311 can be welded to the side 12, snapped together, or detachably connected by bolts or screws. The central axis of the second mounting hole is perpendicular to the side 12, that is, the second mounting hole is horizontally arranged. A threaded hole can be provided on the side of the main beam 50, and the second connecting plate 313 can be installed on the side of the main beam 50 by bolts or screws passing through the second mounting hole and the threaded hole. Of course, a fixing plate can also be installed on the side, with threaded holes provided on the fixing plate, and the second connecting plate 313 can be installed on the fixing plate by bolts or screws.

[0077] The transition plate 312 extends in a direction perpendicular to the side 12. The first connecting plate 311 and the second connecting plate 313 are respectively set on opposite sides of the transition plate 312 along the extension direction. The second connecting position 32 is set as a second mounting hole in the horizontal direction to connect with the main beam 50, which is a convenient connection method.

[0078] Referring to Figures 8-10, in some embodiments, the locking structure 30 includes a support member 33, which includes a support plate 331 and a transition plate 332 connected to each other. The support plate 331 is disposed on the bottom surface 13, and the transition plate 332 is disposed on the side surface 12 and spaced apart from the side surface 12. A second connection position 32 is provided on the transition plate 332.

[0079] When the locking structure 30 is installed on the bottom surface 13, the locking structure 30 includes a support member 33. The support member 33 supports the housing 10 from the bottom surface 13 by connecting with the bottom surface 13, and at the same time fixes the battery device 100. Specifically, the support member 33 includes a support plate 331 and an adapter plate 332. The support plate 331 is used to connect with the bottom surface 13 to install and fix the battery device 100. The adapter plate 332 extends to the side surface 12 of the housing 10. The adapter plate 332 is provided with a second connection position 32, which is used to connect with a beam, specifically a main beam 50. The main beam 50 is provided at the interval between the adapter plate 332 and the side surface 12, so that the adapter plate 332 is installed on the main beam 50. Thus, the bottom surface 13 of the battery device 100 is locked and supported by the connection between the support plate 331 and the bottom surface 13. Of course, there can be multiple support members 33. Multiple support members 33 are arranged at intervals along the length of the housing 10 to support and lock the battery device 100 from multiple positions on the bottom surface 13 of the housing 10.

[0080] By setting the support member 33, which includes a support plate 331 and an adapter plate 332, the support plate 331 is disposed on the bottom surface 13 and locks the bottom surface 13, and the adapter plate is used to connect with the beam of the vehicle 1000, thereby fixing the support member 33 on the beam, thereby realizing the locking of the battery device 100 on the beam.

[0081] In some embodiments, there are two adapter plates 332, which are respectively connected to the two ends of the support plate 331.

[0082] The support plate 331 extends along the width direction of the box body 10 and extends out of both sides of the box body 10 along the width direction. A transition plate 332 is provided at each end of the support plate 331. The transition plate 332 can extend from the support plate 331 along the height direction toward the top surface 11. The transition plate 332 is spaced apart from the side 12. In this way, it can be installed on the two main beams 50 from both sides of the side 12 of the box body 10 through a transition plate 332, which makes the force more symmetrical and the installation more secure.

[0083] By setting two adapter plates 332 at both ends of the support plate 331, the box 10 can be locked from both sides, resulting in more balanced force and a more secure installation.

[0084] Referring to Figure 9, in some embodiments, the support plate 331 includes a groove 3311 with a slot and a flange 3312 disposed on the edge of the slot. The bottom surface 13 is connected to the flange 3312 by a locking attachment. An energy-absorbing space 3313 is formed in the groove 3311. The energy-absorbing space 3313 is connected to the slot, and the slot is disposed facing the bottom surface 13.

[0085] The trough 3311 can be a channel steel, and the flange 3312 can be one or two. When there is one flange 3312, it is set on one side of the trough opening. When there are two flanges 3312, one flange 3312 is set on each side of the trough opening along the extension direction of the trough 3311. The locking accessory can be a screw, bolt or rivet. The locking accessory connects the flange 3312 and the bottom surface 13 and plays the role of installing and fixing the battery device 100. A recessed groove is formed in the trough 3311, which is an energy absorption space 3313. Since the bottom surface 13 of the box 10 is set facing the ground, if there are protrusions on the ground or a car passes through a pothole, it is easy to hit the bottom surface 13. In this embodiment, an energy absorption space 3313 is provided on the trough 3311. When a ground object hits the trough 3311, the trough 3311 can deform and absorb part of the energy, thereby reducing the damage that the collision impact may cause to the box 10.

[0086] By setting the flange 3312 to connect with the bottom surface 13, the battery device 100 is fixed on the support plate 331. By setting the energy absorption space 3313 in the groove 3311, the external impact can be buffered through deformation, thus protecting the battery device 100.

[0087] In some embodiments, the support plate 331 is spaced apart from the bottom surface 13.

[0088] Because the support plate 331 is located below the bottom surface 13, when the battery device 100 is installed on the vehicle 1000, the protrusions on the ground may first collide with the support plate 331. By setting a gap between the support plate 331 and the bottom surface 13, a certain deformation space can be provided for the support plate 331. During the deformation process, the support plate 331 can absorb energy and reduce the impact of collisions. On the other hand, the support plate 331 will not touch the bottom surface 13 of the housing 10 under small deformation, and will not cause damage to the housing 10. Specifically, the support plate 331 may include a groove 3311 and a flange 3312. The flange 3312 is connected to the bottom surface 13 by screws or bolts, and there is still a certain gap between the flange 3312 and the bottom surface 13, thereby achieving the spaced arrangement between the support plate 331 and the bottom surface 13.

[0089] By setting the support plate 331 and the bottom surface 13 at intervals, space is reserved for the deformation of the support plate 331, which can better protect the box 10.

[0090] Referring to Figures 11 to 13, in some embodiments, the locking structure 30 includes a support member 33. The support member 33 includes a support plate 331, a transition plate 332, and a mounting plate 333 connected in sequence. The support plate 331 is disposed on the bottom surface 13, the transition plate 332 is connected to the side surface 12, the mounting plate 333 is connected to the transition plate 332, and a second connection position 32 is provided on the mounting plate 333.

[0091] In this embodiment, the support member 33 includes a support plate 331, a transition plate 332, and a mounting plate 333 connected in sequence. The structure and function of the support plate 331 are similar to those in the previous embodiment, both serving to connect with the bottom surface 13 and provide connection and support to the housing 10. The difference is that the transition plate 332 is not directly used to connect with the beam, but rather to connect with the side 12 of the housing 10. The mounting plate 333 can be a single plate, such as a bent plate, similar to a Z-shaped plate. The mounting plate 333 can be fixedly connected to the transition plate 332 or detachably connected, such as through a threaded connection. The transition plate 332 is provided with a second connection position 32 for connecting with the beam, thereby mounting the battery device 100 onto the main beam 50 via the support member 33.

[0092] The support member 33 comprises a support plate 331, a transition plate 332, and a mounting plate 333 connected in sequence, with a second connection position 32 provided on the mounting plate 333. The support plate 331 provides support and connection to the bottom surface 13, the transition plate 332 connects to the side surface 12 of the housing 10, and the mounting plate 333 connects to the main beam 50. This embodiment achieves three-sided locking of the side surface 12, top surface 11, and bottom surface 13 of the housing 10, resulting in a more secure connection.

[0093] In some embodiments, the housing 10 includes a body 102 and a cover 101 that covers the opening of the body 102. The cover 101 has a top surface 11, the body 102 has a bottom surface 13, and the sidewalls of the cover 101 and the sidewalls of the body 102 cooperate to form a side surface 12.

[0094] The body 102 refers to the bottom part of the housing 10. The body 102 has a receiving groove and an opening. The receiving groove is used to house the battery cell 20. The opening generally faces the top, and the cover plate 101 covers the opening. Specifically, the cover plate 101 and the body 102 can also be connected by screws or the like. The body 102 has a bottom surface 13, which is the side facing the ground. The side wall of the cover plate 101 and the side wall of the body 102 cooperate to form the side surface 12.

[0095] By providing a housing 10 including a main body 102 and a cover plate 101 that covers the opening of the main body 102, the main body 102 and the cover plate 101 are detachably connected, making installation and disassembly very convenient.

[0096] According to some embodiments of this application, this application provides a battery device 100, a housing 10, a locking structure 30, and a battery cell 20 disposed within the housing 10. The housing 10 has a top surface 11 and a bottom surface 13 disposed opposite to each other along its height direction, and a side surface 12 connecting the top surface 11 and the bottom surface 13. A plurality of reinforcing ribs 111 are provided on the top surface 11, and the plurality of reinforcing ribs 111 are arranged at intervals. Each reinforcing rib 111 is provided with a first mounting hole 1121. The first mounting hole 1121 is used to connect with a crossbeam 40 to lock the top surface 11 of the housing 10.

[0097] The locking structure 30 may be a tab 31 mounted on the side 12, which is used to lock onto the side 12 of the housing 10. The tab 31 includes a first connecting plate 311, a transition plate 312, and a second connecting plate 313 connected in sequence. The first connecting plate 311 is mounted on the side 12, and the second connecting plate 313 is provided with a second connecting position 32. In some embodiments, the side 12 has an outwardly protruding extension section 14, the transition plate 312 extends along the height direction of the housing 10, the first connecting plate 311 and the second connecting plate 313 are respectively disposed on opposite sides of the transition plate 312 along the extension direction and extend in opposite directions, the first connecting plate 311 is connected to the extension section 14, and the second connecting position 32 includes a second mounting hole, the central axis of which is arranged along the height direction. In other embodiments, the transition plate 312 extends in a direction perpendicular to the side 12, and the first connecting plate 311 and the second connecting plate 313 are respectively disposed on opposite sides of the transition plate 312 in the extension direction. The first connecting plate 311 and the side 12 are connected by a locking member, and the second connecting position 32 includes a second mounting hole, the central axis of which is perpendicular to the side 12.

[0098] The locking structure 30 can be installed on the support member 33 on the bottom surface 13. In some embodiments, the support member 33 includes a support plate 331 and a transition plate 332 connected to each other. There are two transition plates 332, which are respectively connected to the two ends of the support plate 331. The support plate 331 is disposed on the bottom surface 13, and the transition plate 332 is disposed on the side surface 12. The transition plate 332 is provided with a second connection position 32. The support plate 331 includes a groove 3311 and a flange 3312 disposed on the edge of the groove opening of the groove 3311. The bottom surface 13 and the flange 3312 are connected by a locking attachment. An energy-absorbing space 3313 is formed in the groove 3311, and the groove opening is disposed facing the bottom surface 13. The support plate 331 and the bottom surface 13 are spaced apart. In some other embodiments, the support member 33 includes a support member 33 and a mounting plate 333. The support member 33 includes a support plate 331 and a transition plate 332 connected to each other. The support plate 331 is disposed on the bottom surface 13, the transition plate 332 is connected to the side surface 12, the mounting plate 333 is connected to the transition plate 332, and a second connection position 32 is provided on the mounting plate 333.

[0099] This application has the ability to lock the housing 10 from two dimensions (top surface 11, bottom surface 13 and side surface 12 are each counted as one dimension), so that the battery device 100 is integrated with the beam, which is beneficial to improving the torsional rigidity of the whole vehicle.

[0100] Referring to Figures 5, 7, and 10, according to some embodiments of this application, this application provides an electrical device, which includes a beam and the aforementioned battery device 100. The beam includes a crossbeam 40 and two parallel main beams 50. The two ends of the crossbeam 40 are respectively connected to the two main beams 50. The crossbeam 40 is connected to the top surface 11 through a first threaded part 60 inserted into a first connection position 112. The main beams 50 are connected to the bottom surface 13 or the side surface 12 through a second threaded part 70 inserted into a second connection position 32.

[0101] Two main beams 50 are arranged in parallel along the width of the housing 10, with each main beam 50 located on one side of the housing 10. Each crossbeam 40 is connected to both main beams 50 at both ends. The crossbeams 40 are positioned above the battery device 100 and can have multiple holes. The first connection position 112 can include a first mounting hole 1121, with the holes corresponding to the first mounting holes 1121. A first threaded component 60 passes through the holes and the first mounting holes 1121 to secure the top surface 11 to the crossbeams 40, thus mounting the battery device 100. In one specific embodiment, multiple crossbeams 40 can be arranged along the length of the battery device 100, allowing the top surface 11 of the battery device 100 to be secured from multiple positions. Specifically, a reinforcing rib 111 is provided on the top surface 11, and a first mounting hole 1121 is provided on the reinforcing rib 111. The reinforcing rib 111 strengthens the top surface 11. When the locking structure 30 is provided on the side surface 12, the second threaded part 70 can connect the main beam 50 and the second connecting position 32 to lock the side surface 12 of the battery device 100 onto the main beam 50. When the locking structure 30 is provided on the bottom surface 13, the bottom surface 13 of the battery device 100 can also be locked onto the main beam 50 by connecting the main beam 50 and the second connecting position 32 through the second threaded part 70. The first threaded part 60 and the second threaded part 70 can be screws or bolts, or rivets, etc.

[0102] The beam structure includes a crossbeam 40 and two parallel main beams 50. The two ends of the crossbeam 40 are connected to the two main beams 50 respectively. The crossbeam 40 is connected to the top surface 11 via a first threaded fitting 60 inserted into a first connection position 112. The main beams 50 are connected to the bottom surface 13 or the side surface 12 via a second threaded fitting 70 inserted into a second connection position 32. The battery assembly 100 can be fixedly installed using at least two locking surfaces, allowing the battery assembly 100 and the beam structure to be considered as a single unit, which helps improve the torsional rigidity of the entire vehicle.

[0103] The above description is merely an optional embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the content of the specification and drawings of this application under the concept of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A battery device, wherein, include: A housing and battery cells disposed within the housing; the housing has a top surface and a bottom surface disposed opposite each other along its height direction, and a side surface connecting the top surface and the bottom surface; a reinforcing rib is provided on the top surface, and a first connecting position is provided on the reinforcing rib; and A locking structure is installed on the side or the bottom surface; the locking structure is also provided with a second connecting position.

2. The battery device according to claim 1, wherein, The first connection position includes a first mounting hole, and there are multiple reinforcing ribs arranged at intervals, with each reinforcing rib having the first mounting hole.

3. The battery device according to claim 1, wherein, The locking structure includes a tab disposed on the side. The tab includes a first connecting plate, a transition plate, and a second connecting plate connected in sequence. The first connecting plate is installed on the side, and the second connecting plate is provided with a second connecting position.

4. The battery device according to claim 3, wherein, The side protrudes outward with an extension section. The transition plate extends along the height direction of the housing. The first connecting plate and the second connecting plate are respectively disposed on opposite sides of the transition plate along the extension direction and extend in opposite directions. The first connecting plate is connected to the extension section. The second connecting position includes a second mounting hole. The central axis of the second mounting hole is set along the height direction of the housing.

5. The battery device according to claim 3, wherein, The transition plate extends in a direction perpendicular to the side surface. The first connecting plate and the second connecting plate are respectively disposed on opposite sides of the transition plate along the extension direction. The first connecting plate and the side surface are connected by a locking member. The second connecting position includes a second mounting hole, and the central axis of the second mounting hole is perpendicular to the side surface.

6. The battery device according to claim 1, wherein, The locking structure includes a support member, which includes a support plate and a transition plate connected to each other. The support plate is disposed on the bottom surface, and the transition plate is disposed on the side surface and spaced apart from the side surface. The transition plate is provided with a second connection position.

7. The battery device according to claim 6, wherein, There are two adapter plates, which are respectively connected to both ends of the support plate.

8. The battery device according to claim 6, wherein, The support plate includes a groove with a slot and a flange disposed on the edge of the slot. The bottom surface and the flange are connected by a locking attachment. The groove is provided with an energy-absorbing space communicating with the slot, and the slot is disposed facing the bottom surface.

9. The battery device according to claim 6, wherein, The support plate is spaced apart from the bottom surface.

10. The battery device according to claim 1, wherein, The locking structure includes a support member, which includes a support plate, a transition plate, and a mounting plate connected in sequence. The support plate is disposed on the bottom surface, the transition plate is connected to the side surface, the mounting plate is connected to the transition plate, and the mounting plate is provided with the second connection position.

11. The battery device according to any one of claims 1 to 10, wherein, The enclosure includes a body and a cover that closes the opening of the body. The cover has a top surface, the body has a bottom surface, and the side panels of the cover and the body cooperate to form the side surface.

12. An electrical appliance, wherein, The electrical equipment includes a beam and a battery device as described in any one of claims 1 to 11. The beam includes a crossbeam and two parallel main beams. The two ends of the crossbeam are respectively connected to the two main beams. The crossbeam is connected to the top surface by a first threaded component passing through the first connection position. The main beams are connected to the bottom surface or the side surface by a second threaded component passing through the second connection position.

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