Battery appatatus and electric device

Abstract

Disclosed in the present application are a battery apparatus and an electric device. The battery apparatus comprises a case, battery cells and a locking structure. The case comprises a body and a cover. The body comprises a base plate and a side wall plate surrounding the base plate, wherein the base plate and the side wall plate cooperate to form an accommodating recess, and the cover covers an opening of the accommodating recess. The cover comprises a protruding portion extending towards the side facing away from the body, wherein a mounting cavity is provided within the protruding portion, and the battery cells are mounted within both the mounting cavity and the accommodating recess; a reinforcing rib is provided on the side of the protruding portion facing away from the body. The locking structure is arranged on the cover, and / or the locking structure is arranged on the side of the side wall plate facing away from the accommodating recess. In the battery apparatus, the volume of the case can be increased to accommodate more battery cells, thereby improving the power capacity of the battery apparatus. Moreover, the provision of the reinforcing rib on the protruding portion can provide a reinforcing effect, thereby reducing the risk of damage to the protruding portion caused by collision and impact.

Description

Battery devices and electrical equipment

[0001] Related applications

[0002] This application claims priority to Chinese patent application No. 202520561827.3, 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 devices are installed on electrical equipment. Taking a vehicle as an example, the battery device is usually located at the bottom of the vehicle. Due to the strict requirements on the ground clearance of the battery device, the size of the battery device is limited, which also limits the increase in the battery's capacity. Summary of the Invention

[0005] The main objective of this application is to provide a battery device and electrical equipment that aims to at least improve the technical problem of limited battery capacity.

[0006] To achieve the above objectives, according to some embodiments of this application, this application provides a battery device, including a housing, battery cells, and a locking structure. The housing includes a body and a cover. The body includes a bottom plate and a side panel surrounding the bottom plate. The bottom plate and the side panel are provided with a receiving groove. The cover covers the opening of the receiving groove. The cover includes a protrusion extending toward the side opposite to the body. The protrusion has a mounting cavity. The battery cells are installed in both the mounting cavity and the receiving groove. The side of the protrusion opposite to the body has a reinforcing rib. The locking structure is disposed on the cover; and / or, the locking structure is disposed on the side of the side panel opposite to the receiving groove.

[0007] By incorporating protrusions on the cover, vehicle space can be fully utilized to increase the battery's capacity, and the locking structure facilitates easy installation of the battery on the vehicle. Furthermore, reinforcing ribs on the protrusions strengthen them and reduce the risk of damage from impacts.

[0008] In some embodiments, the number of protrusions is multiple, the multiple protrusions are arranged at intervals along a first direction, and each protrusion extends along a second direction, the first direction being the length direction of the box body, and the second direction being the width direction of the box body.

[0009] By setting multiple protrusions, with the intervals between the protrusions used to avoid crossbeams or other structures, it is beneficial to maximize the volume of the battery device according to the vehicle's spatial structure.

[0010] In some embodiments, the cover further includes a substrate, and the substrate and the protrusion are integrally formed.

[0011] By integrating the substrate and protrusions into a single unit, the manufacturing process is simple, the transition surface is smooth, and the possibility of damage to individual battery cells can be reduced.

[0012] In some embodiments, the locking structure has a mounting hole, and a recess is provided between any two adjacent protrusions. The substrate is provided with the mounting hole corresponding to at least one of the recesses.

[0013] By setting the mounting hole in the recess between two adjacent protrusions, the crossbeam and the mounting hole can be connected by threaded parts to lock the battery device onto the crossbeam. This makes full use of the space in the recess and the top-mounted connection method makes installation more convenient.

[0014] In some embodiments, the interval between any two adjacent protrusions is 250mm to 320mm.

[0015] By setting a reasonable interval between two adjacent protrusions, the risk of interference between the crossbeam and the protrusion can be reduced, and the vehicle space can be fully utilized to increase the volume of the battery device, which in turn helps to further increase the battery capacity.

[0016] In some embodiments, the locking structure includes a connecting plate mounted on the side panel, the connecting plate having threaded holes.

[0017] By setting a connecting plate on the side panel, and using threaded holes on the connecting plate to connect with the beam, specifically the main beam, the battery device can be locked onto the vehicle.

[0018] In some embodiments, the side panel is provided with a locking strip, and the locking structure has a locking groove provided in the connecting plate, the locking groove engaging with the locking strip.

[0019] By setting up a card strip and card slot connection, and adopting a movable connection method, the connection plate can be installed and disassembled easily, and can be installed in the corresponding position as needed, thus improving the flexibility of installation.

[0020] In some embodiments, the card strip extends along a first direction, which is the length direction of the box body.

[0021] By setting the locking strip to extend along the length of the box body, multiple connecting plates can be installed on the locking strip, which can be locked and fixed from different positions, thereby improving the reliability of the connection between the box body and the beam body.

[0022] In some embodiments, there are two card strips, which are arranged at intervals along the height direction of the housing. There are also two card slots, which are respectively disposed on both sides of the connecting plate along the height direction of the housing. The card slots are connected to the card strips one by one.

[0023] By setting the number of card strips and card slots to two, the connecting plate can be fixed from two positions, improving the reliability of the connection.

[0024] In some embodiments, the mounting cavity is in communication with the receiving groove.

[0025] By connecting the receiving cavity and the mounting cavity, it is convenient to install multiple battery cells together, simplifying the assembly process.

[0026] According to some embodiments of this application, this application provides a battery device, including a housing, battery cells, and a locking structure. The housing includes a main body and a cover. The main body includes a bottom plate and side panels surrounding the bottom plate. The bottom plate and side panels are fitted with a receiving groove. The cover covers the opening of the receiving groove. The cover includes a base plate and a protrusion extending away from the main body. The protrusion has a reinforcing rib on the side away from the main body. The base plate and the protrusion are integrally formed. There are multiple protrusions, which are spaced apart along a first direction. Each protrusion extends along a second direction. The first direction is the length direction of the housing, and the second direction is the width direction of the housing. The interval between any two adjacent protrusions is 250mm to 320mm. A mounting cavity is provided within the protrusion. Battery cells are installed in both the mounting cavity and the receiving groove. The mounting cavity and the receiving groove are in communication. The locking structure can be disposed on the cover or side panel. When the locking structure is disposed on the cover, it includes mounting holes, and a recess is provided between any two adjacent protrusions. The base plate is provided with mounting holes corresponding to at least one recess. When the locking structure is disposed on the cover, it includes a connecting plate mounted on the side panel, a threaded hole provided on the connecting plate, and a locking strip provided on the side panel. The locking structure has a slot provided on the connecting plate, and the slot engages with the locking strip. Specifically, there are two locking strips, each extending along a first direction, and the two locking strips are spaced apart along the height direction of the housing. There are also two slots, each located on one side of the connecting plate along the height direction of the housing, and the slots and locking strips are connected one-to-one. This application can increase the volume of the battery device, which is beneficial for increasing the battery capacity.

[0027] According to some embodiments of this application, this application provides an electrical device comprising a beam and a battery device as described above mounted on the beam. The beam has a through hole, and the protrusion passes through the through hole. Specifically, the electrical device can be a vehicle, and the beam can be a support portion of the vehicle, or a vehicle body portion. The battery device provides electrical energy to the vehicle. The through hole formed on the beam allows the protrusion to extend into the vehicle body through the through hole. This fully utilizes the interior space of the vehicle body, increases the volume of the housing, accommodates more battery cells, increases the battery device's capacity, and also helps to improve the overall energy density of the vehicle. Since the electrical device includes any of the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought by any of the above technical solutions, which will not be elaborated further here.

[0028] In some embodiments, the beam body includes a main beam and multiple crossbeams. The number of main beams is two, and the two main beams are arranged in parallel to form an installation space. The multiple crossbeams are arranged along the length direction of the box body. Two adjacent crossbeams cooperate with the two main beams to form a through hole. The protrusion passes through the through hole from the installation space.

[0029] By setting up a beam structure including main beams and cross beams, with protrusions extending from the installation space through through holes, the internal space of the vehicle body can be made more efficient, allowing for the installation of larger boxes, which in turn helps to increase the upper limit of the battery device's capacity.

[0030] In some embodiments, the electrical equipment further includes threaded components, and the locking structure includes mounting holes disposed on the cover. The number of threaded components and mounting holes are equal and they are connected in a one-to-one correspondence. Each threaded component passes through the corresponding crossbeam and is installed in the corresponding mounting hole.

[0031] By setting threaded connections between the crossbeam and the cover, the cover of the battery device can be locked onto the crossbeam, thus connecting the battery device. At the same time, the crossbeam is set in a recessed position, which can save installation space.

[0032] In some embodiments, the electrical equipment further includes a transition plate installed on the main beam, and the locking structure includes a connecting plate disposed on the side panel, the transition plate being connected to the connecting plate.

[0033] The battery pack is secured to the main beam by installing an adapter plate on the main beam and connecting the adapter plate to the connecting plate.

[0034] According to some embodiments of this application, this application provides an electrical device comprising a beam, threaded components, and an adapter plate. The beam includes a main beam and multiple crossbeams. The main beams are arranged in parallel to form an installation space. The multiple crossbeams are arranged along the length of the housing, with adjacent crossbeams cooperating with the two main beams to form through holes. A protrusion passes through the through holes from the installation space. The locking structure includes mounting holes in the cover. The number of threaded components is equal to the number of mounting holes and they are connected one-to-one. Each threaded component passes through a corresponding crossbeam and is installed in a corresponding mounting hole. The locking structure also includes a connecting plate in the side panel, and the adapter plate is connected to the connecting plate. This embodiment can fully utilize vehicle space to accommodate a larger battery device, which is beneficial for increasing the battery's capacity and thus improving the overall vehicle energy density.

[0035] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0036] 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.

[0037] Figure 1 is a schematic diagram of the vehicle structure according to some embodiments of this application;

[0038] Figure 2 is a schematic diagram of the arrangement of individual battery cells inside the battery device housing according to some embodiments of this application;

[0039] Figure 3 is a schematic diagram of the structure of a battery device according to some embodiments of this application;

[0040] Figure 4 is an enlarged structural diagram of point A in Figure 3;

[0041] Figure 5 is a partial structural schematic diagram of the electrical equipment in some embodiments of this application;

[0042] Figure 6 is a partially enlarged structural diagram of Figure 5.

[0043] Reference numerals: 1000, Vehicle; 100, Battery assembly; 200, Control device; 300, Motor; 10, Housing; 11, Cover; 111, Base plate; 112, Protrusion; 113, Reinforcing rib; 114, Recess; 12, Body; 121, Side panel; 122, Locking strip; 20, Battery cell; 30, Locking structure; 31, Mounting hole; 32, Connecting plate; 321, Threaded hole; 322, Slot; 40, Crossbeam; 50, Main beam; 60, Through hole; 70, Installation space; 80, Threaded component; 90, Adapter plate.

[0044] 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

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] Battery units are installed in electrical equipment. Taking a vehicle as an example, for proper weight distribution and safety, battery units are generally located at the bottom of the vehicle. Furthermore, there are strict requirements regarding the battery unit's height from the ground to reduce the risk of collision with the ground or any protruding objects. This limits the size of the battery unit, which in turn determines the number of individual battery cells that can be installed, thus determining the battery's capacity. The battery's capacity directly affects the vehicle's driving range, a key concern for both those skilled in the art and consumers.

[0053] After careful study, the applicant discovered that the vehicle's frame consists of main beams and crossbeams. The crossbeams connect to the main beams at both ends, serving a connecting and reinforcing function, with the battery pack located below the crossbeams. Further research revealed that in some vehicles, after installation, there was still some unused space at the top of the main beam, and a distance between the top of the crossbeam and the main beam. However, due to the crossbeam's placement, interference between the battery pack and the crossbeam forced the battery pack to be placed below the crossbeam, resulting in unusable space. The applicant considered that if this space could be utilized more effectively, and the battery pack size increased, its capacity could be improved.

[0054] To this end, the applicant provides a novel structural design for a battery device. The battery device includes a housing, individual battery cells, and a locking structure. The housing includes a main body and a cover. The main body includes a base plate and side panels surrounding the base plate. The base plate and side panels have a receiving groove that mates with each other. The cover covers the opening of the receiving groove. The cover includes a protrusion extending away from the main body, with a mounting cavity within the protrusion. Both the mounting cavity and the receiving groove contain individual battery cells. A reinforcing rib is provided on the side of the protrusion away from the main body. The locking structure is located on the cover; and / or, the locking structure is located on the side panel away from the receiving groove. This battery device can increase the volume of the housing, thereby increasing the battery's capacity.

[0055] 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.

[0056] 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.

[0057] Please refer to Figure 2, which is a schematic diagram of the arrangement of battery cells inside the battery device housing according to some embodiments of this application. The battery device 100 includes a housing 10 and battery cells 20, with the battery cells 20 housed within the housing 10. The housing 10 provides a cavity for the battery cells 20, and can adopt various structures. In some embodiments, the housing 10 may include a cover 11 and a body 12, with the cover 11 and body 12 overlapping each other, jointly defining a cavity for accommodating the battery cells 20. The body 12 may be a hollow structure with one open end, and the cover 11 may be a plate-like structure, covering the open side of the body 12 so that the cover 11 and body 12 jointly define the cavity; alternatively, both the cover 11 and body 12 may be hollow structures with one open side, with the open side of the cover 11 covering the open side of the body 12. Of course, the housing 10 formed by the cover 11 and body 12 can be of various shapes, such as a cylinder, a cuboid, etc.

[0058] 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.

[0059] 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.

[0060] Referring to FIG3, according to some embodiments of this application, this application provides a battery device 100, including a housing 10, a battery cell 20, and a locking structure 30. The housing 10 includes a body 12 and a cover 11. The body 12 includes a bottom plate and a side plate 121 surrounding the bottom plate. The bottom plate and the side plate 121 are provided with a receiving groove. The cover 11 covers the opening of the receiving groove. The cover 11 includes a protrusion 112 extending toward the side opposite to the body 12. The protrusion 112 is provided with a mounting cavity. The battery cell 20 is installed in both the mounting cavity and the receiving groove. The side of the protrusion 112 opposite to the body 12 is provided with a reinforcing rib 113. The locking structure 30 is provided on the cover 11; and / or, the locking structure 30 is provided on the side plate 121 opposite to the receiving groove.

[0061] The body 12 refers to the bottom portion of the housing 10, and the cover 11 refers to the upper portion of the housing 10. When the battery device 100 is installed on the vehicle 1000, the body 12 is positioned facing the ground, below the cover 11. The body 12 may include a bottom plate and a side plate 121. The side plate 121 is the side of the body 12, which is an annular side surface. It can be a square or circular side plate, depending on the shape of the housing 10, but is generally square. The bottom plate can be the bottom surface of the body 12, located at the bottom end of the housing 10. The body 12 forms a recessed receiving groove, in which a battery cell 20 is placed. The cover 11 covers the opening of the receiving groove to close the opening. In the embodiments of this application, the cover 11 also includes a protrusion 112 extending toward the side opposite to the body 12. A mounting cavity is formed in the protrusion 112, in which a battery cell 20 can be placed. Referring to Figure 5, taking the application of the battery device 100 in a vehicle 1000 as an example, the battery device 100 is generally mounted on a beam. The beam includes two parallel main beams 50 and multiple crossbeams 40 arranged along the length of the main beams 50. The two ends of the crossbeams 40 are connected to the two main beams 50 respectively, and through holes 60 are provided between adjacent crossbeams 40. Generally speaking, the battery device 100 cannot be made too high due to the height limitation of the crossbeams 40. In some vehicle models, the crossbeams 40 cannot be set too high and need to be set lower than the main beams 50. However, there is space above the crossbeams 40. Therefore, in this embodiment, a protrusion 112 is provided on the cover 11. The protrusion 112 can extend into the vehicle body through the through holes 60, making full use of the space inside the vehicle 1000. This increases the volume of the housing 10, which can accommodate more battery cells 20, thus improving the charge of the battery device 100 and increasing the overall energy density of the vehicle. Meanwhile, a locking structure 30 can be provided on the cover 11, or on the side panel 121, or both the cover 11 and the side panel 121 can be provided with a locking structure 30. The battery device 100 can be installed on the beam through the locking structure 30, which facilitates the connection between the battery device 100 and the vehicle.

[0062] Generally, the cover 11 of the battery device 100 is disposed within the mounting space 70 formed by the main beam 50 and the crossbeam 40. The crossbeam 40 can prevent other components of the vehicle body from colliding with the cover 11 from the top surface, and the main beam 50 can prevent other components of the vehicle body from colliding with the battery device 100, the side panel 121, and the cover 11 from the side. In the embodiments of this application, the protrusion 112 extends out from the through hole 60 formed by the main beam 50 and the crossbeam 40 into the interior of the vehicle body. This can make full use of the interior space of the vehicle body, but there is also a risk that the protrusion 112 may easily collide with other components of the vehicle body. Therefore, a reinforcing structure is provided on the surface of the protrusion 112. The reinforcing structure can be a reinforcing rib 113 or a reinforcing plate, which strengthens the protrusion 112 and reduces the possibility of damage to the protrusion 112 due to collision. Specifically, the surface of the protrusion 112 can be the outer surface of the protrusion 112 facing away from the mounting cavity, and the outer surface includes the top surface and the outer side surface.

[0063] By providing a protrusion 112 on the cover 11, the space of the vehicle 1000 can be fully utilized, increasing the power capacity of the battery device 100. Furthermore, the locking structure 30 facilitates the installation of the battery device 100 on the vehicle 1000. Additionally, reinforcing ribs 113 are provided on the protrusion 112 to strengthen it and reduce the risk of damage from impacts.

[0064] Referring to FIG3, in some embodiments, there are multiple protrusions 112, which are arranged at intervals along a first direction, and each protrusion 112 extends along a second direction. The first direction is the length direction of the box 10, and the second direction is the width direction of the box 10.

[0065] It should be noted that the first direction in this application refers to the length direction of the housing 10, which is also the length direction of the main beam 50 referred to below, as shown by arrow X in Figure 3. The width direction refers to the width direction of the housing 10, as shown by arrow Y in Figure 3. The height direction refers to the vertical direction of the housing 10, as shown by arrow Z in Figure 3. The first, second, and third directions are arranged perpendicularly to each other. Multiple protrusions 112 can be provided according to the available space in the vehicle 1000 to maximize the volume of the battery device 100. At the same time, the interval between two adjacent protrusions 112 can be used to avoid the crossbeam 40 or other structures of the vehicle 1000.

[0066] By providing multiple protrusions 112, with the intervals between the protrusions 112 used to avoid the crossbeam 40 or other structures, it is beneficial to maximize the volume of the battery device 100 according to the spatial structure of the vehicle 1000.

[0067] Referring to FIG3, in some embodiments, the cover 11 further includes a substrate 111, and the substrate 111 and the protrusion 112 are integrally formed.

[0068] The substrate 111 is a flat plate, and the protrusion 112 can be considered as being formed by the portion of the substrate 111 protruding in the height direction away from the body 12. Alternatively, the protrusion 112 can be mounted on the substrate 111 after it has been manufactured. Using a one-piece molding process not only simplifies the manufacturing process but also reduces burrs between the substrate 111 and the protrusion 112, resulting in a smoother transition surface and reducing the likelihood of scratches during the installation of the battery cell 20. The one-piece molding process can be achieved through blow molding or die casting.

[0069] By integrally molding the substrate 111 and the protrusion 112, the manufacturing process is simple, the transition surface is smooth, and the possibility of damage to the battery cell 20 can be reduced.

[0070] Referring to FIG3, in some embodiments, the locking structure 30 has a mounting hole 31, and a recess 114 is provided between any two adjacent protrusions 112. The substrate 111 is provided with a mounting hole 31 corresponding to at least one recess 114.

[0071] As described above, the locking structure 30 can be disposed on either the cover 11 or the side panel 121. This embodiment specifically illustrates the locking structure 30 being disposed on the cover 11. The cover 11 has a plurality of protrusions 112, where "a plurality of" can refer to two. The locking structure 30 can be disposed on the substrate 111 between two adjacent protrusions 112, that is, on the recessed position 114. Specifically, the locking structure 30 can be disposed between each pair of adjacent protrusions 112, or it can be disposed on the substrate 111 between some of the pairs of protrusions 112. Those skilled in the art can configure it according to actual needs. Specifically, the locking structure 30 can be a mounting hole 31, which can include multiple sub-holes. When the battery device 100 is mounted on the beam, the protrusion 112 passes through the through hole 60 between two adjacent crossbeams 40, and the crossbeams 40 are located on the recess 114. Since the battery device 100 in this application has a protrusion 112, the overall height of the battery device 100 is relatively large. Therefore, it can be locked on the top of the cover 11. Specifically, the crossbeams 40 and the mounting holes 31 on the cover 11 of the battery device 100 can be connected by threaded parts 80 to hang the battery device 100 on the beam. In this way, the space of the recess 114 can also be fully utilized. Of course, mounting holes 31 can also be provided on the base plate 111 at positions not corresponding to the recess 114, and can also be connected to the crossbeams 40 of the vehicle body by threaded parts 80.

[0072] By setting the mounting hole 31 on the recess 114 between two adjacent protrusions 112, the crossbeam 40 and the mounting hole 31 can be connected by the threaded part 80 to lock the battery device 100 onto the crossbeam 40. This makes full use of the space in the recess 114 and the top-mounted connection method is more convenient for installation.

[0073] In some embodiments, the interval between any two adjacent protrusions 112 is 250mm to 320mm.

[0074] Regarding the spacing between two adjacent protrusions 112, if mounting holes 31 are required in the recessed area 114 between the two protrusions 112, the spacing between the two adjacent protrusions 112 must be large enough to accommodate the crossbeam 40, meaning it needs to be greater than the width of the crossbeam 40. Simultaneously, the position of the protrusions 112 must be carefully considered to avoid interference with the crossbeam 40 and other components of the vehicle body. Based on actual calculations, the width between two adjacent protrusions 112 is set to 250mm to 320mm. This ensures no interference with the crossbeam 40 while allowing for a larger protrusion 112 to facilitate the installation of more battery cells 20. Furthermore, the height of the protrusions 112 in the vertical direction is 120mm to 180mm. Within this range, the height can be set as large as possible to maximize the capacity of the battery device 100, but it should not exceed 180mm, otherwise it may interfere with other components of the vehicle 1000.

[0075] By setting a reasonable interval between two adjacent protrusions 112, the risk of interference between the crossbeam 40 and the protrusions 112 can be reduced, and the vehicle space can be fully utilized to increase the volume of the battery device 100, which in turn helps to further increase the power of the battery device 100.

[0076] Referring to FIG3, in some embodiments, the locking structure 30 includes a connecting plate 32 mounted on the side panel 121, and the connecting plate 32 is provided with a threaded hole 321.

[0077] This embodiment describes an implementation method in which the connecting plate 32 is connected to the beam body by providing a locking structure 30 on the side panel 121. Specifically, the connecting plate 32 can be fixedly installed on the side panel 121, such as by welding; or it can be installed on the side panel 121 by a movable connection, such as by snap-fit ​​or threaded connection. Referring to FIG5, threaded holes 321 are provided on the connecting plate 32 for connection with the beam body. There can be multiple threaded holes 321, and the beam body and the threaded holes 321 can be connected by locking means such as bolts or screws, so that the battery device 100 can be installed on the beam body, specifically, it can be connected to the main beam 50, so that the battery device 100 can be installed on the main beam 50 by side locking.

[0078] It should be noted that although this application describes two separate embodiments illustrating the connection method between the battery device 100 and the beam, namely, top surface locking from the cover 11 and side locking from the side panel 121, those skilled in the art will understand that locking structures 30 can also be provided on both the cover 11 and the side panel 121, so that the cover 11 is locked to the crossbeam 40 while the connecting plate 32 is installed on the main beam 50, achieving simultaneous locking at two positions, thus improving the reliability of the connection.

[0079] Referring to Figure 4, in some embodiments, the side panel 121 is provided with a locking strip 122, and the locking structure 30 has a locking groove 322 provided on the connecting plate 32, the locking groove 322 engaging with the locking strip 122.

[0080] This embodiment describes an example of providing a locking structure 30 on the side panel 121. Regarding the connection method between the locking structure 30 and the side panel 121, it can be a fixed connection, integrally formed during manufacturing, or a movable connection, such as the mating structure of the locking strip 122 and the slot 322. Specifically, the slot 322 is located on the side of the connecting plate 32 facing the side panel 121, and the slot 322 engages with the locking strip 122 to install the connecting plate 32 onto the housing 10. Specifically, regarding the material of the locking strip 122, it can be made of plastic or a metal part with a certain degree of elasticity; when using a metal part, it can be made of the same material as the housing 10. The material of the slot 322 is also that of a metal material with a certain degree of elasticity, such as a thin steel sheet or copper sheet, which facilitates installation and disassembly, and allows the connecting plate 32 to be engaged with the corresponding position when the locking position on the side needs to be changed.

[0081] By setting the card strip 122 to connect with the card slot 322 in a movable connection manner, the installation and disassembly of the connecting plate 32 are facilitated, and the connecting plate 32 can be installed in the corresponding position as needed, thus improving the flexibility of installation.

[0082] Referring to FIG4, in some embodiments, the card strip 122 extends along a first direction, which is the length direction of the box body 10.

[0083] The first direction is the length direction of the housing 10. The locking strip 122 extends along the first direction, and multiple connecting plates 32 can be set on the locking strip 122 for locking the housing 10 from different positions. At the same time, a whole locking strip 122 is set along the length direction of the housing 10, which can adjust the position of the connecting plates 32 on the housing 10. This is suitable for situations where the locking positions are different. For example, although different vehicle types 1000 have the same battery device 100, their specific locking positions with the beam are different. Therefore, the connection between the beam and the battery device 100 can be achieved by adjusting the position of the connecting plates 32.

[0084] By setting the clip 122 to extend along the length of the box body 10, multiple connecting plates 32 can be set on the clip 122 for locking and fixing from different positions, thereby improving the reliability of the connection between the box body 10 and the beam.

[0085] Referring to Figure 4, in some embodiments, there are two card strips 122, which are arranged at intervals along the height direction of the housing 10. There are also two card slots 322, which are respectively disposed on both sides of the connecting plate 32 along the height direction of the housing 10. The card slots 322 are connected to the card strips 122 one by one.

[0086] There are two locking strips 122, which are arranged at intervals along the height direction of the housing 10. The corresponding connecting plate 32 also has two locking slots 322, located on both sides of the connecting plate 32 along the height direction of the housing 10. For example, if the locking strip 122 includes an upper sub-strip and a lower sub-strip, and the locking slot 322 includes an upper sub-slot and a lower sub-slot, then the upper sub-slot engages with the upper sub-strip, and the lower sub-slot engages with the lower sub-strip. Because the battery device 100 is generally heavy and inevitably experiences slight shaking during use, providing two locking positions makes the connection between the connecting plate 32 and the housing 10 more secure.

[0087] By setting the number of card strips 122 and card slots 322 to two, the connecting plate 32 can be fixed from two positions, improving the reliability of the connection.

[0088] In some embodiments, the mounting cavity is in communication with the receiving groove.

[0089] It should be noted that, regarding the setting of the protrusion 112, in one feasible embodiment, the cover 11 can be a complete plate, and then the protrusion 112 is set on the cover 11, specifically by threaded connection or welding. In this case, a battery cell 20 is set in the mounting cavity of the protrusion 112, and a battery cell 20 is also set in the receiving groove. The receiving groove and the mounting cavity are not connected, and the battery cells 20 are installed separately. Of course, some holes can be set for wires to pass through, so that the battery cells 20 in the mounting cavity and the battery cells 20 in the receiving groove can be electrically connected, and both can be connected to the high voltage box of the housing 10. In another feasible embodiment, the protrusion 112 can be formed by a portion of the cover 11 protruding towards the through hole 60. The protrusion 112 is part of the cover 11 and can be integrally formed during the manufacturing of the cover 11, which can simplify the manufacturing process. At this time, the mounting cavity and the receiving slot are connected. When installing the battery cell 20, it can be installed together according to the shape of the mounting cavity and the receiving slot. This way, it is not necessary to install multiple battery cells 20 in two separate times, and it is also more convenient to run wires or set up other electrical components.

[0090] By connecting the receiving cavity and the mounting cavity, it is convenient to install multiple battery cells 20 together, simplifying the assembly process.

[0091] According to some embodiments of this application, this application provides a battery device 100, including a housing 10, a battery cell 20, and a locking structure 30. The housing 10 includes a body 12 and a cover 11. The body 12 includes a bottom plate and a side plate 121 surrounding the bottom plate. The bottom plate and the side plate 121 are provided with a receiving groove. The cover 11 covers the opening of the receiving groove. The cover 11 includes a base plate 111 and a protrusion 112 extending toward the side opposite to the body 12. A reinforcing rib 113 is provided on the side of the protrusion 112 opposite to the body 12. The base plate 111 and the protrusion 112 are integrally formed. There are multiple protrusions 112, which are arranged at intervals along a first direction. Each protrusion 112 extends along a second direction. The first direction is the length direction of the housing 10, and the second direction is the width direction of the housing 10. The interval between any two adjacent protrusions 112 is 250mm to 320mm. A mounting cavity is provided within the protrusion 112, and a battery cell 20 is installed in both the mounting cavity and the receiving groove. The mounting cavity and the receiving groove are connected. The locking structure 30 can be provided on the cover 11 or the side panel 121. When the locking structure 30 is provided on the cover 11, the locking structure 30 includes a mounting hole 31, and a recess 114 is provided between any two adjacent protrusions 112. The base plate 111 is provided with a mounting hole 31 corresponding to at least one recess 114. When the locking structure 30 is provided on the side panel 121, the locking structure 30 includes a connecting plate 32 installed on the side panel 121. The connecting plate 32 is provided with a threaded hole 321, and the side panel 121 is provided with a retaining strip 122. The locking structure 30 has a retaining groove 322 provided on the connecting plate 32, and the retaining groove 322 engages with the retaining strip 122. Specifically, there are two locking strips 122, each extending along a first direction, and the two strips are spaced apart along the height of the housing 10. There are also two locking slots 322, located on opposite sides of the connecting plate 32 along the height of the housing 10, with each slot corresponding to a locking strip 122. The locking structure 30 has a locking slot 322 on the connecting plate 32, which engages with the locking strip 122. This application increases the volume of the battery device 100, which is beneficial for increasing the battery's capacity.

[0092] Referring to Figures 5 and 6, according to some embodiments of this application, this application provides an electrical device. The electrical device includes a beam and a battery device 100, as described above, mounted on the beam. The beam has a through hole 60, and a protrusion 112 passes through the through hole 60. Specifically, the electrical device can be a vehicle 1000, and the beam can be a support portion of the vehicle 1000, or a vehicle body portion. The battery device 100 provides electrical energy to the vehicle 1000. The through hole 60 is formed on the beam, and the protrusion 112 can extend into the vehicle body through the through hole 60. In this way, the internal space of the vehicle body can be fully utilized, while increasing the volume of the housing 10, accommodating more battery cells 20, increasing the capacity of the battery device 100, and also helping to improve the overall energy density of the vehicle. Since the electrical device includes any of the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by any of the above technical solutions, which will not be described in detail here.

[0093] Referring to Figure 5, in some embodiments, the beam body includes a main beam 50 and multiple crossbeams 40. There are two main beams 50, which are arranged in parallel to form an installation space 70. The multiple crossbeams 40 are arranged along the length of the box body 10. Two adjacent crossbeams 40 and two main beams 50 are configured as through holes 60. The protrusion 112 passes through the through hole 60 from the installation space 70.

[0094] Referring to Figure 5, the two main beams 50 are arranged in parallel relative to each other. The extension direction of each main beam 50 is consistent with the length direction of the box 10, as shown by arrow X in Figure 5. The arrangement direction of the two main beams 50 is consistent with the width direction of the box 10. An installation space 70 is provided between the two main beams 50. The battery device 100 is located between the two main beams 50, that is, at least part of it is located within the installation space 70. Multiple crossbeams 40 are arranged along the length of the housing 10, and each crossbeam 40 is arranged along the width of the housing 10, as shown by arrow Y in Figure 5. Each crossbeam 40 is connected to two main beams 50 at both ends. Two adjacent crossbeams 40 and main beams 50 cooperate to form a through hole 60. The body 12 is at least partially disposed within the installation space 70. The protrusion 112 extends from the installation space 70 toward the through hole 60. Specifically, it can extend along the height of the housing 10 toward the through hole 60, as shown by arrow Z in Figure 5. It can be flush with the through hole 60 or pass through the through hole 60. In this way, the space above the crossbeams 40 can be used reasonably to increase the volume of the housing 10, thereby increasing the power of the battery device 100. Here, the power refers to the maximum capacity that the battery device 100 can achieve.

[0095] By setting the beam body including the main beam 50 and the cross beam 40, and the protrusion 112 extending out from the installation space 70 through the through hole 60, the internal space of the vehicle body can be reasonably utilized to set a larger volume box 10, which is conducive to increasing the power of the battery device 100.

[0096] Referring to Figures 5 and 6, in some embodiments, the electrical equipment further includes threaded parts 80, and the locking structure 30 includes mounting holes 31 provided in the cover 11. The number of threaded parts 80 and mounting holes 31 are equal and they are connected in a one-to-one correspondence. Each threaded part 80 passes through the corresponding crossbeam 40 and is installed in the corresponding mounting hole 31.

[0097] This embodiment describes a method for connecting the crossbeam 40 to the cover 11 of the housing 10. Specifically, the cover 11 is provided with mounting holes 31, and there can be multiple mounting holes 31. The crossbeam 40 is also provided with through holes. A threaded component 80 passes through the through holes of the crossbeam 40 and is threadedly connected to the mounting holes 31 to connect the crossbeam 40 and the cover 11 together. In this way, the battery device 100 can be locked from the top of the housing 10, which is equivalent to the battery device 100 being mounted on the crossbeam 40. Multiple through holes can also be provided on a crossbeam 40, and the number of through holes, mounting holes 31, and threaded components 80 are the same and they are connected one-to-one. Specifically, the mounting holes 31 are provided between two adjacent protrusions 112, that is, in the recesses 114, and the crossbeam 40 is also provided in the recesses 114. This can save space and reduce the risk of interference between the crossbeam 40 and the protrusions 112.

[0098] By setting the threaded part 80 to connect the crossbeam 40 and the cover 11, the cover 11 of the battery device 100 can be locked onto the crossbeam 40, thus achieving the connection of the battery device 100. At the same time, the crossbeam 40 is set on the recessed position 114, which can save space.

[0099] Referring to Figures 5 and 6, in some embodiments, the electrical equipment also includes a transition plate 90 installed on the main beam 50, and the locking structure 30 includes a connecting plate 32 disposed on the side panel 121, with the transition plate 90 connected to the connecting plate 32.

[0100] This embodiment describes a method for connecting the main beam 50 to the side panel 121 of the housing 10. Specifically, a connecting plate 32 is provided on the side panel 121, and the connecting plate 32 can be installed on the side panel 121 by a fixed or detachable connection. A transition plate 90 is provided on the main beam 50, and similarly, the transition plate 90 can be installed on the main beam 50 by a fixed or detachable connection. Then, the battery device 100 is installed on the main beam 50 by connecting the transition plate 90 and the connecting plate 32, specifically, the transition plate 90 is installed on the side of the main beam 50. The transition plate 90 and the connecting plate 32 can be detachably connected, for example, by providing holes at corresponding positions on both the connecting plate 32 and the transition plate 90, and connecting the connecting plate 32 and the transition plate 90 by bolts or screws or other locking devices. Of course, it should be noted that the battery device 100 can be side-locked using only the implementation method of this embodiment, or it can coexist with the previous embodiment. While side-locking, a threaded part 80 is provided to lock the cover 11 of the battery device 100 onto the crossbeam 40, and the lock is made from two positions of the housing 10, which makes the connection more reliable.

[0101] The battery device 100 is secured to the main beam 50 by setting an adapter plate 90 installed on the main beam 50 and connecting the adapter plate 90 to the connecting plate 32.

[0102] According to some embodiments of this application, this application provides an electrical device, which includes a beam, threaded parts 80, and an adapter plate 90. The beam includes a main beam 50 and multiple crossbeams 40. There are two main beams 50, which are arranged in parallel to form an installation space 70. The multiple crossbeams 40 are arranged along the length of the box body 10. Two adjacent crossbeams 40 and two main beams 50 are configured as through holes 60. A protrusion 112 passes through the through hole 60 from the installation space 70. The locking structure 30 includes mounting holes 31 provided in the cover body 11. The number of threaded parts 80 is equal to the number of mounting holes 31 and they are connected one-to-one. Each threaded part 80 passes through the corresponding crossbeam 40 and is installed in the corresponding mounting hole 31. The locking structure 30 also includes a connecting plate 32 provided in the side panel 121. The adapter plate 90 is connected to the connecting plate 32. The electrical equipment can be a vehicle 1000. This embodiment can make full use of the vehicle space to set up a larger volume battery device 100, which is conducive to increasing the power of the battery device 100 and thus increasing the energy density of the whole 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, The device includes a housing, individual battery cells, and a locking structure. The housing includes a main body and a cover. The main body includes a bottom plate and side panels surrounding the bottom plate. The bottom plate and the side panels are provided with a receiving groove. The cover covers the opening of the receiving groove. The cover includes a protrusion extending toward the side opposite to the main body. The protrusion has a mounting cavity. The individual battery cells are installed in both the mounting cavity and the receiving groove. The side of the protrusion opposite to the main body has a reinforcing rib. The locking structure is disposed on the cover; and / or, The locking structure is located on the side of the side panel opposite to the receiving groove.

2. The battery device according to claim 1, wherein, The number of protrusions is multiple, and the multiple protrusions are arranged at intervals along a first direction. Each protrusion extends along a second direction, where the first direction is the length direction of the box body and the second direction is the width direction of the box body.

3. The battery device according to claim 2, wherein, The cover also includes a substrate, and the substrate and the protrusion are integrally formed.

4. The battery device according to claim 3, wherein, The locking structure has mounting holes, and a recess is provided between any two adjacent protrusions. The substrate is provided with mounting holes corresponding to at least one of the recesses.

5. The battery device according to claim 3, wherein, The interval between any two adjacent protrusions is 250mm to 320mm.

6. The battery device according to any one of claims 1 to 5, wherein, The locking structure includes a connecting plate installed on the side panel, and the connecting plate is provided with threaded holes.

7. The battery device according to claim 6, wherein, The side panel is provided with a locking strip, and the locking structure has a locking groove provided in the connecting plate, the locking groove engaging with the locking strip.

8. The battery device according to claim 7, wherein, The card strip extends along a first direction, which is the length direction of the box body.

9. The battery device according to claim 8, wherein, The number of the card strips is two, and the two card strips are arranged at intervals along the height direction of the box. The number of the card slots is also two, and the two card slots are respectively set on both sides of the connecting plate along the height direction of the box. The card slots are connected to the card strips one by one.

10. The battery device according to any one of claims 1 to 5, wherein, The mounting cavity is connected to the receiving groove.

11. An electrical appliance, wherein, The electrical equipment includes a beam and a battery device as described in any one of claims 1 to 10, the beam having a through hole, and the protrusion passing through the through hole.

12. The electrical equipment according to claim 11, wherein, The beam body includes a main beam and multiple crossbeams. There are two main beams, which are arranged in parallel to form an installation space. The multiple crossbeams are arranged along the length of the box body. Two adjacent crossbeams cooperate with the two main beams to form a through hole. The protrusion passes through the through hole from the installation space.

13. The electrical equipment according to claim 12, wherein, The electrical equipment also includes threaded components. The locking structure includes mounting holes provided in the cover. The number of threaded components and mounting holes are equal and they are connected in a one-to-one correspondence. Each threaded component passes through the corresponding crossbeam and is installed in the corresponding mounting hole.

14. The electrical equipment according to claim 12 or 13, wherein, The electrical equipment also includes a transition plate installed on the main beam, and the locking structure includes a connecting plate disposed on the side panel, with the transition plate connected to the connecting plate.

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