Battery device and power utilization device with same

Abstract

The utility model discloses a battery device and a power utilization device with the same, and relates to the technical field of batteries, the battery device comprises a box body, the box body comprises an edge beam, the edge beam comprises a first wall and a second wall which are arranged at an interval in a first direction, the edge beam is provided with a fixing hole, and the fixing hole penetrates through the first wall and the second wall in the first direction; the sleeve piece is arranged in the fixing hole, the sleeve piece is connected with the first wall and / or the second wall in a clamped mode, an assembling hole is formed in the sleeve piece, the assembling hole penetrates through the sleeve piece in the first direction, the sleeve piece comprises a first sleeve and a second sleeve, and the first sleeve and the second sleeve are arranged in the first direction and detachably connected. According to the battery device provided by the invention, the sleeve piece is connected with the edge beam in the clamping manner, and the first sleeve of the sleeve piece is detachably connected with the second sleeve, so that the assembly and fixation of the sleeve piece and the box body are more convenient and rapid, and the assembly efficiency of the battery device is well improved.

Description

Technical Field

[0001] The present application relates to the technical field of batteries, and in particular to a battery device and an electrical device having the same. Background Art

[0002] After the battery device is assembled and arranged in an electrical device such as a vehicle, it needs to have a stable assembly and fixing relationship and a stable fixing state with the vehicle, so that the battery device can operate stably when the vehicle is in different working conditions. With the development and popularization of cost reduction, efficiency improvement, and vehicle lightweighting, the box body in the battery device is processed and manufactured using lighter composite materials or carbon fiber materials, etc., which reduces the weight of the box body, but at the same time reduces the rigidity of the box body at the side beam mounting location. Therefore, a sleeve structure needs to be added at the side beam mounting location to enhance the rigidity of the box body so that the box body can meet the requirements for stable assembly in the vehicle. Currently, the installation and fixing of the sleeve structure on the box body are relatively troublesome and inconvenient, resulting in a low assembly efficiency of the sleeve structure and the box body, and thus a low assembly efficiency of the battery device. Summary of the Utility Model

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. For this reason, the present application provides a battery device, which can make the installation and fixing of the sleeve structure and the box body more convenient and easier, and greatly improve the assembly efficiency of the battery device.

[0004] The present application also provides an electrical device having the above battery device.

[0005] The battery device according to the first aspect of the present application includes: a box body, the box body includes a side beam, the side beam includes a first wall and a second wall arranged at intervals in a first direction, the side beam is provided with a fixing hole, and the fixing hole penetrates through the first wall and the second wall along the first direction; a sleeve member, the sleeve member is arranged in the fixing hole, the sleeve member is clamped with the first wall and / or the second wall, the sleeve member is formed with an assembly hole, the assembly hole penetrates through the sleeve member along the first direction, and is used for passing through a fastener, wherein, the sleeve member includes: a first sleeve and a second sleeve, the first sleeve and the second sleeve are arranged along the first direction and are detachably connected.

[0006] According to the battery device of the present application, by arranging the sleeve member in the fixing hole of the side beam of the box body, it well meets the need for strengthening the rigidity of the box body at the fixing hole of the side beam. The sleeve member is clamped and connected with the first wall and / or the second wall of the side beam, and the first sleeve and the second sleeve of the sleeve member are detachably connected, making the assembly and fixing of the sleeve member and the box body more convenient and fast, thereby greatly improving the assembly efficiency of the battery device.

[0007] In some embodiments of the present application, the first sleeve is inserted through the first wall and is snap-connected to the first wall; and / or, the second sleeve is inserted through the second wall and is snap-connected to the second wall.

[0008] In this embodiment, the first sleeve is snap-connected to the first wall, and the second sleeve is snap-connected to the second wall. The structure is simple, enabling the sleeve member to be more stably and reliably snap-connected to the side beam through the first sleeve and the second sleeve, thereby making the assembly and fixation of the sleeve member and the side beam more stable and reliable. Moreover, to a certain extent, it can enhance the strengthening effect of the sleeve member on the rigidity of the side beam, enabling the box body to be more stably assembled and fixed in the electrical device.

[0009] In some embodiments of the present application, the first sleeve is inserted through the first wall, the second sleeve is inserted through the second wall, and the first sleeve and the second sleeve cooperate with each other to be snap-connected to the first wall or the second wall.

[0010] In this embodiment, the first sleeve and the second sleeve are provided to cooperate with each other to be snap-connected to the first wall or the second wall. The structure is simple, and to a certain extent, it can make the integrity of the first sleeve, the second sleeve, and the side beam better, enabling the sleeve member to be more stably assembled to the side beam of the box body.

[0011] In an embodiment of the present application, the part of the fixing hole on the first wall is the first hole segment, the part of the fixing hole on the second wall is the second hole segment, the first sleeve and the second sleeve cooperate to define a snap groove, and the periphery of the first hole segment or the periphery of the second hole segment is fitted into the snap groove.

[0012] In this embodiment, the first sleeve and the second sleeve cooperate to define a snap groove. The structure is simple, facilitating the formation of the snap groove at the fixing hole of the side beam, enabling the sleeve member to be stably and conveniently snap-connected to the side beam through the first sleeve and the second sleeve.

[0013] In some examples of the present application, a first flange portion protruding radially outward is formed at one end of the first sleeve facing away from the second sleeve, and the first flange portion and one end of the second sleeve facing the first sleeve cooperate to define the snap groove.

[0014] In this embodiment, the first sleeve is provided with a first flange portion that cooperates with one end of the second sleeve facing the first sleeve to define a snap groove. The structure is simple, enabling a snap groove to be formed and snap-connected to the first wall after the first sleeve and the second sleeve are connected and assembled in the fixing hole, making the assembly of the sleeve member and the side beam more convenient, easier, and efficient.

[0015] In an example of the present application, the second sleeve is adhesively connected to the second wall.

[0016] In this embodiment, the second sleeve is adhesively connected to the second wall, which has a simple structure and can improve the connection stability between the second sleeve and the second wall, so that the connection and fixation between the sleeve member and the side beam are more stable and reliable, so that the sleeve member can stably play a role in structural reinforcement, so that the sleeve member can stably improve the structural rigidity of the box at the fixing hole, so that the battery device can be stably assembled and fixed in the electrical device.

[0017] In some embodiments of the present application, a first flange portion protruding radially outward is formed at one end of the first sleeve away from the second sleeve, and a second flange portion protruding radially outward is formed at one end of the second sleeve away from the first sleeve, and the first flange portion and the second flange portion are respectively arranged on both sides of the side beam in the first direction, and the side beam is clamped between the first flange portion and the second flange portion.

[0018] In this embodiment, the first sleeve and the second sleeve are respectively provided with the first flange portion and the second flange portion, so that the side beam is clamped between the first flange portion and the second flange portion. The structure is simple, the sleeve member can be stably and reliably clamped and fixed to the side beam, and the assembly and fixation of the sleeve member and the side beam are more convenient.

[0019] In some embodiments of the present application, the first sleeve is snap-connected or threadedly connected to the second sleeve.

[0020] In this embodiment, the first sleeve and the second sleeve are snap-connected or threadedly connected, which has a simple structure and convenient connection, so that the first sleeve and the second sleeve can be easily assembled on the side beam and stably assembled and fixed to the side beam, thereby reducing the trouble of assembling the sleeve member and the side beam caused by the complexity of the assembly of the sleeve member, making it more convenient and easy to assemble the sleeve member and the side beam, thereby improving the assembly efficiency of the battery device.

[0021] In one embodiment of the present application, one of the first sleeve and the second sleeve is provided with a slot and the other is provided with a claw, and the first sleeve and the second sleeve are connected by being clamped with the slot through the claw.

[0022] In this embodiment, the first sleeve and the second sleeve are connected by clamping claws and the clamping grooves, which has a simple structure and convenient clamping, so that the first sleeve and the second sleeve can be conveniently clamped and fixed.

[0023] In some examples of the present application, the groove extends in a ring shape along the circumference of the sleeve member.

[0024] In this embodiment, the clamping groove is arranged to be annular and extends along the circumference of the sleeve member, so that the first sleeve and the second sleeve can be clamped and connected more conveniently and easily, thereby making the assembly of the sleeve member and the box body more convenient and quick.

[0025] In some examples of the present application, in a direction from the locking groove along the first direction toward the claw, a bottom wall of the locking groove extends inwardly and obliquely along the radial direction of the sleeve member.

[0026] In this embodiment, the bottom wall of the clamping groove is extended inwardly along the radial direction of the sleeve member, which has a simple structure and can well meet the needs of the first sleeve and the second sleeve being clamped together through the clamping claws and the clamping groove.

[0027] In one example of the present application, the inclination angle of the bottom wall is greater than or equal to 15° and less than or equal to 20°.

[0028] In this embodiment, the inclination angle of the bottom wall is set to be greater than or equal to 15° and less than or equal to 20°, so that the slot can form a deeper slot structure along the radial direction of the sleeve member, so that the claw is clamped into the slot and forms a larger clamping fitting area with the wall of the slot, so that the claw and the slot can be stably and reliably clamped and connected, and the risk of the slot being too deep along the radial direction of the sleeve member and the claw being difficult to pass over the outer peripheral surface and breaking can be reduced, so that the claw can be stably clamped into the slot.

[0029] In some examples of the present application, the number of the claws is at least three, and the plurality of claws are arranged at intervals along the circumference of the sleeve member.

[0030] In the present embodiment, at least three clamping claws are provided, which has a simple structure and can enable the first sleeve and the second sleeve to form a stable clamping connection structure in the circumferential direction of the sleeve member, making the clamping connection between the first sleeve and the second sleeve more stable and reliable.

[0031] In some examples of the present application, the first sleeve includes a first flange portion and a first barrel portion, the first barrel portion is provided with the clamping groove, the first flange portion is provided at the end of the first barrel portion facing away from the second sleeve, and the end of the second sleeve facing the first sleeve is provided with the claw, and the claw, the first barrel portion and the first flange portion cooperate to define a clamping groove that is clamped with the first wall.

[0032] In this embodiment, the first sleeve is provided with a first flange portion and a first barrel portion, the first barrel portion is provided with a clamping groove, and the second sleeve is provided with a clamping claw at one end facing the first sleeve, so that the first sleeve and the second sleeve are clamped together at the fixing hole to form a clamping groove and clamped with the first wall. The structure is simple, which is convenient for the first sleeve and the second sleeve to be clamped together at the fixing hole, and the first sleeve and the second sleeve can be clamped with the first wall after being clamped together. In this way, the clamping connection operation of the first sleeve and the second sleeve in the sleeve member can be completed at the same time as the clamping connection operation of the sleeve member and the side beam, thereby greatly simplifying the assembly operation steps of the sleeve member and the side beam, making the assembly of the sleeve member and the side beam more convenient and quick, thereby greatly improving the assembly efficiency of the battery device.

[0033] In some embodiments of the present application, the side beam further includes a filler, the filler is filled between the first wall and the second wall, and the fixing hole penetrates the filler along the first direction.

[0034] In some embodiments of the present application, the box body is a non-metallic part.

[0035] In this embodiment, setting the box body as a non-metallic part can well reduce the weight of the box body, so that the overall weight of the battery device is well reduced, meeting the needs of vehicle lightweighting. To a certain extent, the weight energy density of the battery device can be improved, thereby well improving the performance of the battery device.

[0036] In this embodiment, a filler is provided between the first wall and the second wall. The structure is simple and can play a role in strengthening the structure of the sleeve part and the side beam. Thus, the overall structural stability and reliability are better after the sleeve part and the side beam are assembled, so that the battery device can be assembled into the electrical device more stably.

[0037] According to the electrical device of the second aspect of the present application, it includes: an electrical main body and the battery device according to the first aspect of the present application. The battery device is fixed on the electrical main body through a fastener passing through the assembly hole.

[0038] According to the electrical device of the present application, by providing the battery device of the first aspect above, and by arranging the sleeve part in the fixing hole of the side beam of the box body, the need for rigid strengthening of the box body at the fixing hole of the side beam is well met. The sleeve part is snap-connected to the first wall and / or the second wall of the side beam, and the first sleeve and the second sleeve of the sleeve part are detachably connected, making the assembly and fixation of the sleeve part and the box body more convenient and fast, thereby well improving the assembly efficiency of the battery device.

[0039] The additional aspects and advantages of the present application will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 is a schematic diagram of the electrical device according to an embodiment of the present application;

[0041] Figure 2 is a schematic diagram of the battery device according to an embodiment of the present application;

[0042] Figure 3 is a sectional view of the side beam and the sleeve part after assembly according to an embodiment of the present application;

[0043] Figure 4 is a sectional view of the side beam and the sleeve part before assembly is completed according to an embodiment of the present application;

[0044] Figure 5 is an exploded view of a sleeve member according to an embodiment of the present application;

[0045] Figure 6 is a schematic view of a first sleeve according to an embodiment of the present application;

[0046] Figure 7 is a sectional view of the first sleeve according to an embodiment of the present application;

[0047] Figure 8 is a schematic view of the first sleeve from another angle according to an embodiment of the present application;

[0048] Figure 9 is a schematic view of a second sleeve according to an embodiment of the present application;

[0049] Figure 10 is a sectional view of the second sleeve according to an embodiment of the present application;

[0050] Figure 11 is a schematic view of the second sleeve from another angle according to an embodiment of the present application;

[0051] Figure 12 is a sectional view of the side beam at the fixing hole according to an embodiment of the present application;

[0052] Figure 13 is a sectional view of the side beam and the sleeve member after assembly according to another embodiment of the present application.

[0053] Reference numerals:

[0054] 10, box body; 101, fixing hole; 1011, first hole section; 1012, second hole section;

[0055] 11, side beam; 111, first wall; 112, second wall;

[0056] 20, sleeve member; 201, clamping groove; 202, assembly hole;

[0057] 21, first sleeve; 211, first flange portion; 212, first barrel portion; 2121, card slot;

[0058] 22, second sleeve; 221, clamping claw; 222, second flange portion;

[0059] 100, battery device; 200, motor; 300, controller;

[0060] 1000, electrical device. Detailed implementation manners

[0061] The embodiments of the technical solution of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solution of the present application more clearly, so they are only examples and cannot be used to limit the protection scope of the present application.

[0062] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above description of the drawings are intended to cover non-exclusive inclusion.

[0063] In the description of the embodiments of this application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "a plurality" is more than two, unless otherwise specifically defined.

[0064] Referring to "embodiments" herein means that the specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of this application. The phrase appears in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0065] In the description of the embodiments of this application, the term "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after.

[0066] In the description of the embodiments of this application, the term "a plurality" refers to more than two (including two).

[0067] In the description of the embodiments of this application, the orientation or positional relationship indicated by technical terms such as "length", "upper", "lower", "front", "rear", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of this application.

[0068] In the description of the embodiments of the present application, unless otherwise clearly specified and defined, technical terms such as "installation", "connection", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0069] Currently, from the perspective of the development of the market situation, the application of power battery devices is becoming more and more extensive. Power battery devices are not only used in energy storage power systems such as hydraulic, thermal, wind, and solar power stations, but also widely used in electric transportation means such as electric bicycles, electric motorcycles, and electric vehicles, as well as in multiple fields such as military equipment and aerospace. With the continuous expansion of the application fields of power battery devices, the market demand is also continuously increasing.

[0070] When the box body of the battery device is a composite material part or a carbon fiber material part, the side beams of the box body have poor rigidity, so a sleeve structure needs to be set at the mounting position of the box body to improve its rigidity when assembled and fixed with the electrical device, meeting the need for stable assembly and fixation of the battery device in the electrical device. When the sleeve structure is installed and fixed on the side beam, the bonding and fixing method is usually adopted. Two parts of the sleeve structure are butted and inserted into the fixing holes from both sides of the side beam, and the sleeve structure is adhesively connected to the side beam. In this process, the two parts of the sleeve structure need to be aligned and adjusted to meet the subsequent assembly needs of the box body and the electrical main body. At the same time, when the sleeve structure is adhesively fixed to the side beam, both parts of the sleeve structure need to be bonded, and a long curing time is required after bonding, so that the installation of the sleeve structure on the box body is troublesome and time-consuming, and the assembly efficiency of the battery device is relatively low.

[0071] Based on the above considerations, in order to improve the assembly efficiency of the battery device, the present application designs a battery device. By clamping and fixing the sleeve structure to the box body, the installation and fixation of the sleeve structure and the box body are made more convenient and easier, and the assembly is more efficient, so that the assembly efficiency of the battery device is well improved.

[0072] The battery device (Battery Apparatus) mentioned in the embodiments of the present application may include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly (Battery Cell Assembly) may include a plurality of battery cells, and the plurality of battery cells are connected in series, parallel, or in a hybrid connection through a busbar component.

[0073] In some embodiments, a battery cell assembly is typically formed by arranging multiple battery cells.

[0074] As an example, the battery cell assembly can be a battery module, which is formed by arranging and fixing multiple battery cells into an independent module. As an example, the battery module can be formed by bundling multiple battery cells with cable ties.

[0075] In some embodiments, the battery device can be a battery pack, which includes a box body and one or more battery cell assemblies, and the battery cell assemblies are accommodated in the box body.

[0076] As an example, the battery cell assembly can be a battery module, and the battery cell assembly can be accommodated in the box body by fixing the battery module in the box body.

[0077] As an example, the battery cell assembly can also be accommodated in the box body by directly fixing multiple battery cells to the box body.

[0078] The battery device can be used in an electrical device that uses the battery device as a power source, or in various energy storage systems that use the battery device as an energy storage element. The electrical device can be, but is not limited to, a mobile phone, a tablet computer, a laptop computer, an electric toy, an electric tool, a battery-powered vehicle, an electric vehicle, a ship, a spacecraft, etc. Among them, the electric toy can include stationary or mobile electric toys, such as a game console, an electric vehicle toy, an electric ship toy, and an electric aircraft toy, etc. The spacecraft can include an airplane, a rocket, a space shuttle, and a spaceship, etc.

[0079] For the convenience of description, the following embodiments take the electrical device as a vehicle as an example to introduce the electrical device and the battery device of the present application in detail.

[0080] Refer to Figure 1 as shown Figure 1Schematic diagram of the electrical device 1000 in the embodiment of the present application when the vehicle is used. The vehicle can be a fuel vehicle, a gas vehicle, or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle, etc. The vehicle is provided with a battery device 100, and the battery device 100 can be arranged at the bottom, head, or tail of the vehicle. The battery device 100 can be used for power supply of the vehicle. For example, the battery device 100 can be used as the operating power source of the vehicle. The vehicle may further include a controller 300 and a motor 200. The controller 300 is used to control the battery device 100 to supply power to the motor 200. For example, it is used for the working power requirements during the start, navigation, and driving of the vehicle. In some embodiments of the present application, the battery device 100 can not only be used as the operating power source of the vehicle, but also be used as the driving power source of the vehicle, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle.

[0081] Next, reference is made to Figures 2 - 13 Describe the battery device 100 according to the embodiment of the first aspect of the present application. Figure 2 It is a schematic diagram of the battery device 100 according to the embodiment of the present application; Figure 3 It is a sectional view of the side beam 11 and the sleeve member 20 after assembly according to the embodiment of the present application; Figure 4 It is a sectional view of the side beam 11 and the sleeve member 20 before assembly is completed according to the embodiment of the present application; Figure 5 It is an exploded view of the sleeve member 20 according to the embodiment of the present application; Figure 6 It is a schematic diagram of the first sleeve 21 according to the embodiment of the present application; Figure 7 It is a sectional view of the first sleeve 21 according to the embodiment of the present application; Figure 8 It is a schematic diagram of the first sleeve 21 from another angle according to the embodiment of the present application; Figure 9 It is a schematic diagram of the second sleeve 22 according to the embodiment of the present application; Figure 10 It is a sectional view of the second sleeve 22 according to the embodiment of the present application; Figure 11 It is a schematic diagram of the second sleeve 22 from another angle according to the embodiment of the present application; Figure 12 It is a sectional view of the side beam 11 at the fixing hole 101 according to the embodiment of the present application; Figure 13 It is a sectional view of the side beam 11 and the sleeve member 20 after assembly according to another embodiment of the present application.

[0082] As Figures 2 - 13As shown in the figure, the battery device 100 according to the embodiment of the first aspect of the present application includes: a box body 10 and a sleeve member 20. The box body 10 includes side beams 11. The side beams 11 include a first wall 111 and a second wall 112 arranged at intervals in the first direction. The side beams 11 are provided with fixing holes 101. The fixing holes 101 penetrate through the first wall 111 and the second wall 112 along the first direction. The sleeve member 20 is arranged in the fixing hole 101. The sleeve member 20 is clamped with the first wall 111 and / or the second wall 112. The sleeve member 20 is formed with an assembly hole 202. The assembly hole 202 penetrates through the sleeve member 20 along the first direction and is used for passing through a fastener. Wherein, the sleeve member 20 includes: a first sleeve 21 and a second sleeve 22. The first sleeve 21 and the second sleeve 22 are arranged in the first direction and are detachably connected.

[0083] In this embodiment, the battery device 100 includes a box body 10. Exemplarily, the box body 10 may include a first box body and a second box body. The first box body and the second box body are buckled so that a closed space is formed inside the box body 10 to accommodate the battery cell assembly. Here, "closed" means covered or closed, which may be sealed or non-sealed. The first box body may be a top cover or a bottom plate. Exemplarily, the box body 10 may also include a top cover, a frame and a bottom plate. The top cover and the bottom plate are respectively connected to the frame so that a closed space is formed inside the box body 10 to accommodate the battery cell assembly.

[0084] In this embodiment, the box body 10 may be a composite material part or a carbon fiber material part. The box body 10 may also be an aluminum alloy part, etc., as long as it meets the design and use requirements of the battery device 100.

[0085] The box body 10 includes side beams 11. The side beams 11 are provided with fixing holes 101. The fixing holes 101 penetrate through the side beams 11 along the first direction. The sleeve member 20 is arranged in the fixing hole 101 and is formed with an assembly hole 202. When the whole assembly of the sleeve member 20 and the box body 10 is assembled into a vehicle, the fastener can pass through the assembly hole 202 to fix the box body 10 in the vehicle, so as to assemble the battery device 100 onto the vehicle. The sleeve member 20 can play a role in strengthening the structure, making the side beams 11 of the box body 10 have better rigidity at the fixing holes 101 so as to be assembled with the vehicle more stably and reliably.

[0086] In this embodiment, the side beam 11 includes a first wall 111 and a second wall 112 arranged at intervals in the first direction. The first wall 111 and the second wall 112 can cooperate to form two outer surfaces of the side beam 11 in the first direction respectively. Exemplarily, the side beam 11 can be a structure with a cavity, and the cavity divides the side beam 11 into the first wall 111 and the second wall 112. The fixing hole 101 penetrates through the first wall 111 and the second wall 112. When the sleeve member 20 is assembled with the box body 10, the sleeve member 20 can extend into the fixing hole 101 from the outer surface of the first wall 111 towards the second wall 112, or the sleeve member 20 can also extend into the fixing hole 101 from the outer surface of the second wall 112 towards the first wall 111. The sleeve member 20 is clamped with the first wall 111, and the sleeve member 20 can also be clamped with the second wall 112, or the sleeve member 20 can be clamped with the first wall 111 and the second wall 112 as a whole. Exemplarily, the first sleeve 21 can be provided with a buckle structure, so that after the first sleeve 21 and the second sleeve 22 are fitted into the fixing hole 101, they can be clamped and connected with the first wall 111, or the second sleeve 22 can be provided with a buckle structure, so that after the first sleeve 21 and the second sleeve 22 are fitted into the fixing hole 101, they can be clamped and connected with the second wall 112.

[0087] In this embodiment, the sleeve member 20 is clamped with the first wall 111 and / or the second wall 112. The sleeve member 20 includes a first sleeve 21 and a second sleeve 22. The first sleeve 21 and the second sleeve 22 are arranged along the first direction and are detachably connected. When the sleeve member 20 is assembled into the fixing hole 101, the first sleeve 21 and the second sleeve 22 can extend into the fixing hole 101 from both sides of the side beam 11. For example, the first sleeve 21 can extend into the fixing hole 101 from the outer surface of the first wall 111 towards the second wall 112, and the second sleeve 22 extends into the fixing hole 101 from the outer surface of the second wall 112 towards the first wall 111. The first sleeve 21 and the second sleeve 22 are detachably connected between the first wall 111 and the second wall 112. The first sleeve 21 can be clamped and connected with the first wall 111, or the second sleeve 22 can be clamped and connected with the second wall 112, or the first sleeve 21 can be clamped with the second sleeve 22 and connected to the side beam 11.

[0088] The first sleeve 21 and the second sleeve 22 are detachably connected. For example, the first sleeve 21 and the second sleeve 22 can be clamped and connected or threadedly connected. After the first sleeve 21 and the second sleeve 22 are connected and assembled, the inner through holes of the first sleeve 21 and the second sleeve 22 can cooperate to form an assembly hole 202.

[0089] In the present embodiment, the sleeve member 20 is arranged to be snap-connected with the first wall 111 and / or the second wall 112 of the side beam 11, which has a simple structure. Compared with the adhesive fixation method, the time and operation steps consumed in docking, curing, gluing, etc. when assembling the sleeve member 20 and the box body 10 can be greatly saved and simplified, making the assembly and fixation of the sleeve member 20 and the side beam 11 more convenient and easy, thereby greatly improving the assembly efficiency of the battery device 100.

[0090] In this embodiment, the sleeve member 20 is provided with a first sleeve 21 and a second sleeve 22. The first sleeve 21 and the second sleeve 22 are arranged along a first direction. The structure is simple, and the sleeve member 20 can be conveniently assembled into the fixing hole 101. The first sleeve 21 and the second sleeve 22 are detachably connected, which facilitates the connection and assembly of the first sleeve 21 and the second sleeve 22 in the fixing hole 101, thereby making the assembly and fixation of the sleeve member 20 and the box body 10 more convenient and efficient.

[0091] According to the battery device 100 of the embodiment of the present application, by arranging the sleeve member 20 in the fixing hole 101 of the side beam 11 of the box body 10, the need for strengthening the rigidity of the box body 10 at the fixing hole 101 of the side beam 11 is well met. The sleeve member 20 is snap-connected with the first wall 111 and / or the second wall 112 of the side beam 11, and the first sleeve 21 and the second sleeve 22 of the sleeve member 20 are detachably connected, so that the assembly and fixation of the sleeve member 20 and the box body 10 are more convenient and quick, thereby greatly improving the assembly efficiency of the battery device 100.

[0092] In some embodiments of the present application, reference Figure 3 As shown, the first sleeve 21 can be inserted into the first wall 111 and connected with the first wall 111 by snapping.

[0093] In this embodiment, the first sleeve 21 is penetrated through the first wall 111 and is snap-connected with the first wall 111. By way of example, the first sleeve 21 may be provided with a snap-fit ​​structure. When the first sleeve 21 moves into position in the fixing hole 101, the first sleeve 21 may be snap-connected and fixed to the first wall 111 by itself. The second sleeve 22 extends into the fixing hole 101 from the second wall 112 and is connected to the first sleeve 21, so that the sleeve member 20 is snap-connected to the first wall 111 as a whole. At the same time, the first sleeve 21 and the second sleeve 22 cooperate to form an assembly hole 202 that passes through the side beam 11, and the fastener may pass through the side beam 11 along the first sleeve 21 and the second sleeve 22.

[0094] In this embodiment, the first sleeve 21 is inserted into the first wall 111 and connected with the first wall 111 by snapping. The structure is simple and can well meet the needs of snapping and assembling the sleeve member 20 and the side beam 11 .

[0095] In some embodiments of the present application, reference Figure 3As shown, the second sleeve 22 can be passed through the second wall 112 and is snap-connected to the second wall 112.

[0096] In this embodiment, the second sleeve 22 is passed through the second wall 112 and is snap-connected to the first wall 111. Exemplarily, the second sleeve 22 can be provided with a snap structure. When the second sleeve 22 moves into place in the fixing hole 101, the second sleeve 22 can be self-snap-fixed to the second wall 112. The first sleeve 21 extends from the first wall 111 into the fixing hole 101 and is connected to the second sleeve 22, so that the sleeve member 20 is integrally snap-connected to the second wall 112. At the same time, the first sleeve 21 and the second sleeve 22 cooperate to form an assembly hole 202 penetrating the side beam 11, and the fastener can pass through the side beam 11 along the first sleeve 21 and the second sleeve 22.

[0097] In this embodiment, the second sleeve 22 is passed through the second wall 112 and is snap-connected to the second wall 112, with a simple structure, which can well meet the snap-assembly requirements of the sleeve member 20 and the side beam 11.

[0098] In some embodiments of the present application, referring to Figure 3 As shown, the first sleeve 21 can be passed through the first wall 111 and is snap-connected to the first wall 111. The second sleeve 22 can be passed through the second wall 112 and is snap-connected to the second wall 112.

[0099] In this embodiment, the first sleeve 21 is snap-connected to the first wall 111, and the second sleeve 22 is snap-connected to the second wall 112, with a simple structure, so that the sleeve member 20 can be more stably and reliably snap-connected to the side beam 11 through the first sleeve 21 and the second sleeve 22, thereby making the assembly and fixation of the sleeve member 20 and the side beam 11 more stable and reliable, and can, to a certain extent, improve the strengthening effect of the sleeve member 20 on the rigidity of the side beam 11, so that the box body 10 can be more stably assembled and fixed in the electrical device 1000.

[0100] In some embodiments of the present application, referring to Figure 3 As shown, the first sleeve 21 can be passed through the first wall 111, the second sleeve 22 is passed through the second wall 112, and the first sleeve 21 and the second sleeve 22 cooperate with each other to be snap-connected to the first wall 111 or the second wall 112.

[0101] In this embodiment, the first sleeve 21 cooperates with the second sleeve 22 to be snap-connected to the first wall 111 or the second wall 112. For example, after the first sleeve 21 penetrates through the first wall 111 and the second sleeve 22 penetrates through the second wall 112 and is connected to the first sleeve 21, the first sleeve 21 and the second sleeve 22 can cooperate at the first wall 111 to form a snap groove 201 structure to snap-connect to the first wall 111, or the first sleeve 21 and the second sleeve 22 can cooperate at the second wall 112 to form a snap groove 201 structure to snap-connect to the first wall 111.

[0102] In this embodiment, the first sleeve 21 and the second sleeve 22 are arranged to cooperate with each other to be snap-connected to the first wall 111 or the second wall 112. The structure is simple. To a certain extent, the integrity of the first sleeve 21 and the second sleeve 22 with the side beam 11 can be better, and the sleeve member 20 can be assembled to the side beam 11 of the box body 10 more stably.

[0103] In an embodiment of the present application, as Figure 3 and Figure 12 shown, the part of the fixing hole 101 on the first wall 111 is the first hole section 1011, and the part of the fixing hole 101 on the second wall 112 is the second hole section 1012. The first sleeve 21 and the second sleeve 22 can cooperate to define a snap groove 201, and the circumference of the first hole section 1011 or the circumference of the second hole section 1012 is fitted into the snap groove 201.

[0104] In this embodiment, the first sleeve 21 and the second sleeve 22 cooperate to define a snap groove 201. If the circumference of the first hole section 1011 can be fitted into the snap groove 201, then the first sleeve 21 and the second sleeve 22 cooperate to be snap-connected to the first wall 111. Or if the circumference of the second hole section 1012 can be fitted into the snap groove 201, then the first sleeve 21 and the second sleeve 22 cooperate to be snap-connected to the second wall 112.

[0105] If the circumference of the first hole section 1011 or the circumference of the second hole section 1012 is fitted into the snap groove 201, then the outer diameter of the end of the second sleeve 22 connected to the first sleeve 21 needs to be larger than the outer diameter of the end of the first sleeve 21 that penetrates through the first hole section 1011 and is connected to the second sleeve 22. And the outer diameter of the part of the first sleeve 21 located on the outer surface of the first wall 111 needs to be larger than the outer diameter of its part that penetrates through the first hole section 1011 to meet the assembly requirements of the first sleeve 21 and the second sleeve 22 in the fixing hole 101 and the requirements for forming the snap groove 201. Exemplarily, since the outer diameter of one end of the second sleeve 22 section is larger, the aperture of the corresponding second hole section 1012 needs to be larger than the aperture of the first hole section 1011 to meet the penetration requirements of the second sleeve 22.

[0106] In this embodiment, the first sleeve 21 and the second sleeve 22 cooperate to define a clamping groove 201, which has a simple structure and is convenient for the formation of the clamping groove 201 at the fixing hole 101 of the side beam 11, enabling the sleeve member 20 to be stably and conveniently clamped with the side beam 11 through the first sleeve 21 and the second sleeve 22.

[0107] In some examples of the present application, such as Figure 3 and Figure 4 as shown, a first flange portion 211 protruding radially outward may be formed at one end of the first sleeve 21 facing away from the second sleeve 22, and the first flange portion 211 and one end of the second sleeve 22 facing the first sleeve 21 cooperate to define the clamping groove 201.

[0108] In this embodiment, a first flange portion 211 protruding radially outward is formed at one end of the first sleeve 21 facing away from the second sleeve 22, and the first flange portion 211 and one end of the second sleeve 22 facing the first sleeve 21 cooperate to define the clamping groove 201. Then, the first flange portion 211 can be arranged outside the first hole section 1011 and on the outer surface of the first wall 111 of the side beam 11, and one side surface of the first flange portion 211 facing the first wall 111 can be in contact with the first wall 111. When the sleeve member 20 and the side beam 11 are assembled, one end of the first sleeve 21 without the first flange portion 211 extends into the first hole section 1011 from the outer surface of the first wall 111 and is connected to the second sleeve 22. After the first sleeve 21 and the second sleeve are connected, the first sleeve 21 and the second sleeve 22 can cooperate through the first flange portion 211 and one end of the second sleeve 22 to form the clamping groove 201, and at the same time, the first wall 111 is clamped in the clamping groove 201.

[0109] In this embodiment, the first sleeve 21 is provided with the first flange portion 211 to cooperate with one end of the second sleeve 22 facing the first sleeve 21 to define the clamping groove 201, which has a simple structure. After the first sleeve 21 and the second sleeve 22 are connected and assembled in the fixing hole 101, the clamping groove 201 can be formed and clamped with the first wall 111, making the assembly of the sleeve member 20 and the side beam 11 more convenient, easier, and efficient.

[0110] In an example of the present application, in the first direction, the clamping groove 201 can be in clearance fit with the first wall 111.

[0111] In this embodiment, the clamping groove 201 is in clearance fit with the first wall 111. For example, in the first direction, there may be a gap between one side surface of the first flange portion 211 facing the first wall 111 and the first wall 111, and there may also be a certain gap between the end face of one end of the second sleeve 22 facing the first sleeve 21 and the other side surface of the first wall 111.

[0112] In this embodiment, the snap-fitting groove 201 and the first wall 111 are arranged to be clearance-fitted, so that when the first sleeve 21 and the second sleeve 22 are connected at the first wall 111 and form the snap-fitting groove 201, they can have an assembly gap with the first wall 111 to compensate for dimensional deviations such as manufacturing errors and assembly errors, so that the first sleeve 21 and the second sleeve 22 can stably fit to form the snap-fitting groove 201 and be snap-fitted and fixed to the first wall 111.

[0113] In an example of the present application, the second sleeve 22 and the second wall 112 may be bonded together.

[0114] In this embodiment, the second sleeve 22 is bonded to the second wall 112. After the first sleeve 21 is connected to the second sleeve 22 and forms a snap-fitting groove 201 to be snap-fitted to the first wall 111, the other end of the second sleeve 22 is inserted into the second hole section 1012 of the second sleeve 22. By way of example, the end face of the other end of the second sleeve 22 can be flush with the surface of the second wall 112 facing away from the first wall 111, and the other end of the second sleeve 22 can be bonded and fixed to the second wall 112.

[0115] In the present embodiment, the second sleeve 22 is bonded to the second wall 112, which has a simple structure and can improve the connection stability between the second sleeve 22 and the second wall 112, so that the connection and fixation between the sleeve member 20 and the side beam 11 is more stable and reliable, so that the sleeve member 20 can stably play a role in structural reinforcement, so that the sleeve member 20 can stably improve the structural rigidity of the box body 10 at the fixing hole 101, so that the battery device 100 can be stably assembled and fixed in the electrical device 1000.

[0116] In some embodiments of the present application, reference Figure 13 As shown, the end of the first sleeve 21 away from the second sleeve 22 can be formed with a first flange portion 211 protruding radially outward, and the end of the second sleeve 22 away from the first sleeve 21 can be formed with a second flange portion 222 protruding radially outward, the first flange portion 211 and the second flange portion 222 are respectively arranged on both sides of the side beam 11 in the first direction, and the side beam 11 is clamped between the first flange portion 211 and the second flange portion 222.

[0117] In this embodiment, first flanges 211 and second flanges 222 are respectively formed at the ends of the first sleeve 21 and the second sleeve 22 that are away from each other in the first direction. The first flange 211 and the second flange 222 are respectively located on both sides of the side beam 11 in the first direction. Exemplarily, the first flange 211 may be located outside the first wall 111 of the side beam 11, and the second flange 222 may be located outside the second wall 112 of the side beam 11. When the sleeve member 20 is assembled at the fixing hole 101, the first sleeve 21 and the second sleeve 22 can extend into the fixing hole 101 from both sides of the side beam 11 in the first direction and be connected. After the first sleeve 21 and the second sleeve 22 are connected, the sleeve member 20 forms an integral structure passing through the fixing hole 101. The first flange 211 and the second flange 222 can respectively abut against the first wall 111 and the second wall 112 to enable the sleeve member 20 to be snap-connected to the side beam 11. Exemplarily, the overall length dimension of the first sleeve 21 and the second sleeve 22 in the first direction after connection can match the thickness dimension of the side beam 11 in the first direction, so that after the first sleeve 21 and the second sleeve 22 are assembled and connected, the first flange 211 and the second flange 222 can form a clamping force with the two side surfaces of the side beam 11.

[0118] In this embodiment, the first flange 211 and the second flange 222 are respectively provided on the first sleeve 21 and the second sleeve 22, so that the side beam 11 is clamped between the first flange 211 and the second flange 222. The structure is simple, which can enable the sleeve member 20 to be stably and reliably snap-connected to the side beam 11, and make the assembly and fixation of the sleeve member 20 and the side beam 11 more convenient.

[0119] In an embodiment of the present application, referring to Figure 3 and Figure 13 as shown, the outer diameter of the first flange 211 may be greater than the aperture of the first hole section 1011, the outer diameter of the second flange 222 may be greater than the aperture of the second hole section 1012, the difference between the outer diameter of the first flange 211 and the aperture of the first hole section 1011 may be greater than or equal to 4 mm, and the difference between the outer diameter of the second flange 222 and the aperture of the second hole section 1012 may be greater than or equal to 4 mm.

[0120] In this embodiment, the outer diameter of the first flange 211 is greater than the outer diameter of the first hole section 1011 and the difference is greater than or equal to 4 mm. For example, the difference between the outer diameter of the first flange 211 and the outer diameter of the first hole section 1011 may be 4 mm, 5 mm, 6 mm, 7 mm, etc. The outer diameter of the second flange 222 is greater than the outer diameter of the second hole section 1012 and the difference is greater than or equal to 4 mm. For example, the difference between the outer diameter of the second flange 222 and the outer diameter of the second hole section 1012 may be 4 mm, 5 mm, 6 mm, 7 mm, etc.

[0121] In this embodiment, the outer diameter of the first flange portion 211 is set to be larger than the outer diameter of the first hole section 1011 and the difference is greater than or equal to 4 mm, and the difference between the outer diameter of the second flange portion 222 and the hole diameter of the second hole section 1012 can be greater than or equal to 4 mm. This can enable the first flange portion 211 and the first wall 111 to form a sufficient clamping fit area at the circumference of the first hole section 1011, and enable the second flange portion 222 and the second wall 112 to form a sufficient clamping fit area at the circumference of the second hole section 1012. Thus, the sleeve member 20 and the side beam 11 can be clamped and connected more stably and reliably, and the overall structure at the fixing hole 101 is more stable after the sleeve member 20 and the side beam 11 are assembled, so that the battery device 100 can be assembled and fixed more stably in the vehicle.

[0122] In some embodiments of the present application, the first sleeve 21 and the second sleeve 22 can be clamped and connected or threadedly connected.

[0123] In this embodiment, the first sleeve 21 and the second sleeve 22 are clamped and connected or threadedly connected. For example, when the first sleeve 21 and the second sleeve 22 are clamped and connected, the first sleeve 21 and the second sleeve 22 can respectively extend into the fixing hole 101 of the side beam 11, and the first sleeve 21 and the second sleeve 22 can complete the clamping connection operation by moving along the first direction. Or when the first sleeve 21 and the second sleeve are threadedly connected, the first sleeve 21 and the second sleeve 22 can be connected by fixing one and rotating the other or by rotating each other.

[0124] In this embodiment, clamping and connecting or threadedly connecting the first sleeve 21 and the second sleeve 22 has a simple structure and convenient connection, enabling the first sleeve 21 and the second sleeve 22 to be easily assembled onto the side beam 11 and stably assembled and fixed to the side beam 11. Thus, the trouble caused by the complex assembly of the sleeve member 20 during the assembly of the sleeve member 20 and the side beam 11 can be reduced, making the assembly of the sleeve member 20 and the side beam 11 more convenient and easier, and thus improving the assembly efficiency of the battery device 100.

[0125] In an embodiment of the present application, as Figure 3 and Figure 5 shown, one of the first sleeve 21 and the second sleeve 22 can be provided with a slot 2121 and the other is provided with a claw 221, and the first sleeve 21 and the second sleeve 22 are clamped and connected through the claw 221 and the slot 2121.

[0126] In this embodiment, one of the first sleeve 21 and the second sleeve 22 is provided with a clamping groove 2121 and the other is provided with a clamping claw 221. For example, a clamping groove 2121 can be provided at one end of the first sleeve 21 facing the second sleeve 22, then a clamping claw 221 can be provided at one end of the second sleeve 22 facing the first sleeve 21, or a clamping claw 221 can be provided at one end of the first sleeve 21 facing the second sleeve 22, then a clamping groove 2121 can be provided at one end of the second sleeve 22 facing the first sleeve 21. After the first sleeve 21 and the second sleeve 22 respectively extend into the fixing hole 101 from both sides of the side beam 11 in the first direction, the clamping claw 221 and the clamping groove 2121 on the first sleeve 21 and the second sleeve 22 are clamped in place as the first sleeve 21 and the second sleeve 22 move, so that the first sleeve 21 and the second sleeve 22 are clamped and connected and cooperate to form a clamping groove 201 to be clamped with the first wall 111.

[0127] In this embodiment, the first sleeve 21 and the second sleeve 22 are clamped and connected through the clamping claw 221 and the clamping groove 2121, with a simple structure and convenient clamping, enabling the first sleeve 21 and the second sleeve 22 to be conveniently clamped and fixed.

[0128] In some examples of this application, referring to Figure 6 and Figure 7 as shown, the clamping groove 2121 can extend circumferentially along the sleeve member 20 into a ring shape.

[0129] In this embodiment, the clamping groove 2121 extends circumferentially along the sleeve member 20 into a ring shape. Then, in the circumferential direction of the sleeve member 20, when the clamping claw 221 is arranged at any position of the clamping groove 2121, the clamping claw 221 can cooperate with the clamping groove 2121 for clamping. When the sleeve member 20 and the side beam 11 are assembled, the first sleeve 21 and the second sleeve 22 only need to be inserted into the fixing hole 101 in the first direction and move into place to be stably clamped and connected.

[0130] In this embodiment, by setting the clamping groove 2121 to extend circumferentially along the sleeve member 20 into a ring shape, it is more convenient and easier to clamp and connect the first sleeve 21 and the second sleeve 22, thus making the assembly of the sleeve member 20 and the box body 10 more convenient and fast.

[0131] In some specific embodiments of this application, as Figure 4 and Figure 7 shown, in the direction from the clamping groove 2121 towards the clamping claw 221 in the first direction, the bottom wall of the clamping groove 2121 can extend obliquely inward along the radial direction of the sleeve member 20.

[0132] In this embodiment, the bottom wall of the card slot 2121 extends obliquely inward along the radial direction of the sleeve member 20. Accordingly, a convex structure for mating with the card slot 2121 is formed on the claw 221. When the claw 221 is engaged with the card slot 2121, the convex structure of the claw 221 can be radially inserted into the card slot 2121 along the sleeve member 20. Exemplarily, the claw 221 can have a certain elasticity so that the convex structure of the claw 221 can stably cross the outer peripheral wall surface where the card slot 2121 is located.

[0133] In this embodiment, the bottom wall of the card slot 2121 extends obliquely inward along the radial direction of the sleeve member 20, with a simple structure, which can well meet the need for the first sleeve 21 and the second sleeve 22 to be engaged and connected through the cooperation of the claw 221 and the card slot 2121.

[0134] In an example of the present application, the inclination angle of the bottom wall can be greater than or equal to 15° and less than or equal to 20°.

[0135] In this embodiment, the inclination angle of the bottom wall is greater than or equal to 15° and less than or equal to 20°. For example Figure 7 as shown in the figure, α in the figure represents the inclination angle of the bottom wall, then α can be 15°, 16°, 18°, 19°, 20°, etc.

[0136] In this embodiment, setting the inclination angle of the bottom wall to be greater than or equal to 15° and less than or equal to 20° can make the card slot 2121 form a deeper groove structure along the radial direction of the sleeve member 20, so that when the claw 221 is engaged with the card slot 2121, a larger engagement and cooperation area is formed with the wall surface of the card slot 2121. Thus, the claw 221 and the card slot 2121 can be stably and reliably engaged and connected, and the risk that the card slot 2121 is too deep along the radial direction of the sleeve member 20 and the claw 221 is not easily crossed over the outer peripheral surface and broken can be reduced, so that the claw 221 can be stably engaged with the card slot 2121.

[0137] In some examples of the present application, referring to Figure 9 and Figure 11 as shown, the number of claws 221 can be at least three, and multiple claws 221 are arranged at intervals along the circumferential direction of the sleeve member 20.

[0138] In this embodiment, the number of claws 221 is at least three. For example, the number of claws 221 can be three, four, five, six, seven, etc. Multiple claws 221 are arranged at intervals along the circumferential direction of the first sleeve 21. When the first sleeve 21 and the second sleeve 22 are engaged and connected, multiple claws 221 can be cooperatively engaged with the annular card slot 2121.

[0139] In this embodiment, at least three claws 221 are provided, and the structure is simple, which can form a stable clamping connection structure between the first sleeve 21 and the second sleeve 22 in the circumferential direction of the sleeve member 20, making the clamping connection between the first sleeve 21 and the second sleeve 22 more stable and reliable.

[0140] In some examples of the present application, such as Figure 3 and Figure 4 As shown, the first sleeve 21 may include a first flange portion 211 and a first cylindrical portion 212. The first cylindrical portion 212 is provided with a card slot 2121. The first flange portion 211 is provided at one end of the first cylindrical portion 212 facing away from the second sleeve 22. One end of the second sleeve 22 facing the first sleeve 21 is provided with a claw 221. The claw 221, the first cylindrical portion 212 and the first flange portion 211 cooperate to define a clamping groove 201 for clamping with the first wall 111.

[0141] In this embodiment, the first sleeve 21 includes a first flange portion 211 and a first cylindrical portion 212. The first cylindrical portion 212 is provided with a card slot 2121. One end of the second sleeve 22 facing the first sleeve 21 is provided with a claw 221. When the sleeve member 20 is assembled with the side beam 11, the first cylindrical portion 212 of the first sleeve 21 can extend into the fixing hole 101 from the outside of the first wall 111 of the side beam 11 in the first direction. The first flange portion 211 abuts against the periphery of the first hole section 1011 on the first wall 111. The second sleeve 22 extends into the fixing hole 101 from the outside of the second wall 112 of the side beam 11 in the first direction and is clamped with the card slot 2121 of the first cylindrical portion 212 through the claw 221. After the first sleeve 21 and the second sleeve 22 are clamped and connected, the end surface of the end of the claw 221 facing the first wall 111, the outer peripheral surface of the first cylindrical portion 212 and the surface of the first flange portion 211 facing the first wall 111 cooperate to define a clamping groove 201 for clamping with the first wall 111.

[0142] Exemplarily, the outer diameter dimension of the second sleeve 22 may be larger than the outer diameter dimension of the first cylindrical portion 212. The claw 221 may include a connecting portion and a clamping portion. The connecting portion may extend in the first direction. The clamping portion is connected to one end of the connecting portion facing the first wall 111 and is in clamping cooperation with the card slot 2121. The connecting portion is located radially outside the first cylindrical portion 212, so that the connecting portion of the claw 221 can be arranged along the periphery of the first hole section 1011 of the first wall 111, and cooperate with the first cylindrical portion 212 and the first flange to form a clamping groove 201 for clamping the first wall 111.

[0143] In this embodiment, the first sleeve 21 is provided with a first flange portion 211 and a first barrel portion 212. The first barrel portion 212 is provided with a clamping groove 2121. A claw 221 is provided at one end of the second sleeve 22 facing the first sleeve 21. After the first sleeve 21 and the second sleeve 22 are clamped and connected at the fixing hole 101, a clamping groove 201 is formed to be clamped with the first wall 111. The structure is simple, which is convenient for the clamping and connection of the first sleeve 21 and the second sleeve 22 at the fixing hole 101, and enables the first sleeve 21 and the second sleeve 22 to form a clamping connection with the first wall 111 after the clamping connection. In this way, the clamping connection operation between the first sleeve 21 and the second sleeve 22 in the sleeve member 20 and the clamping connection operation between the sleeve member 20 and the side beam 11 can be completed simultaneously, so that the assembly operation steps of the sleeve member 20 and the side beam 11 can be well simplified, and the assembly of the sleeve member 20 and the side beam 11 is more convenient and rapid, thereby greatly improving the assembly efficiency of the battery device 100.

[0144] In an example of the present application, in the first direction, the gap between the claw 221 and the first wall 111 can be less than or equal to 0.2 mm.

[0145] In this embodiment, the gap between the claw 221 and the first wall 111 is less than or equal to 0.2 mm. For example, the gap between the claw 221 and the first wall 111 can be 0.2 mm, 0.18 mm, 0.15 mm, 0.1 mm, 0.08 mm, 0.07 mm, etc.

[0146] In this embodiment, setting the gap between the claw 221 and the first wall 111 to be less than or equal to 0.2 mm can make the size of the clamping groove 201 formed by the cooperation of the claw 221 and the first sleeve 21 in the first direction more matched with the wall thickness of the first wall 111, so that the sleeve member 20 can be stably clamped to the side beam 11 through the clamping groove 201.

[0147] In some embodiments of the present application, the side beam 11 may further include a filling member, and the filling member is filled between the first wall 111 and the second wall 112, and the fixing hole 101 penetrates the filling member in the first direction.

[0148] In this embodiment, the side beam 11 further includes a filling member, and the filling member is filled between the first wall 111 and the second wall 112. The fixing hole 101 penetrates the filling member in the first direction. After the sleeve member 20 and the side beam 11 are clamped and assembled, the filling member can be filled in the space formed between the first wall 111 and the second wall 112 of the sleeve member 20 and the side beam 11.

[0149] In this embodiment, a filler is provided between the first wall 111 and the second wall 112. The structure is simple and can play a role in strengthening the structure of the sleeve member 20 and the side beam 11, so that the overall structural stability and reliability of the assembled sleeve member 20 and side beam 11 are better, and thus the battery device 100 can be assembled into the electrical device 1000 more stably.

[0150] In some embodiments of the present application, the box body 10 can be a non-metallic member.

[0151] For example, the box body 10 can be a composite material member or a carbon fiber material member, etc.

[0152] In this embodiment, setting the box body 10 as a non-metallic member can well reduce the weight of the box body 10, so that the overall weight of the battery device 100 is well reduced, meeting the need for vehicle lightweighting. To a certain extent, the weight energy density of the battery device 100 can be improved, and thus the performance of the battery device 100 is well improved.

[0153] Next, refer to Figures 1 - 13 Describe the electrical device 1000 according to the embodiment of the second aspect of the present application.

[0154] As Figures 1 - 13 shown, the electrical device 1000 according to the embodiment of the present application includes: an electrical main body and a battery device 100 according to the embodiment of the first aspect of the present application. The battery device 100 is fixed to the electrical main body through a fastener passing through the assembly hole 202.

[0155] Other components and operations of the electrical device 1000 according to the present application are known to those of ordinary skill in the art and will not be described in detail here.

[0156] For the electrical device 1000 according to the embodiment of the present application, by providing the battery device 100 of the above-mentioned first aspect embodiment, and by providing the sleeve member 20 disposed in the fixing hole 101 of the side beam 11 of the box body 10, the need for rigid strengthening of the box body 10 at the fixing hole 101 of the side beam 11 is well met. The sleeve member 20 is snap-connected to the first wall 111 and / or the second wall 112 of the side beam 11, and the first sleeve 21 and the second sleeve 22 of the sleeve member 20 are detachably connected, making the assembly and fixation of the sleeve member 20 and the box body 10 more convenient and rapid, and thus the assembly efficiency of the battery device 100 is well improved.

[0157] Next, will refer to Figures 1 - 13 Describe the electrical device 1000 according to a specific embodiment of the present application.

[0158] As Figures 1 - 13As shown, the electrical device 1000 is a vehicle, which includes a battery device 100, a controller 300, and a motor 200. The controller 300 is used to control the battery device 100 to supply power to the motor 200. The electrical device 1000 includes an electrical main body and the battery device 100. The battery device 100 includes a box body 10 and a sleeve member 20. The box body 10 is a non-metallic member. The box body 10 includes side beams 11, and fixing holes 101 are formed in the side beams 11. The side beams 11 include a first wall 111 and a second wall 112 arranged at intervals in the first direction. The fixing holes 101 penetrate the first wall 111 and the second wall 112 along the first direction to penetrate the side beams 11. The fixing holes 101 respectively form a first hole section 1011 and a second hole section 1012 on the first wall 111 and the second wall 112. The sleeve member 20 can be a metal member or a plastic member with good structural rigidity, etc. The sleeve member 20 includes a first sleeve 21 and a second sleeve 22. The first sleeve 21 includes a first flange portion 211 and a first cylinder portion 212. The first cylinder portion 212 extends into the first hole section 1011. An outer peripheral surface of a part of the first cylinder portion 212 extending out of the first hole section 1011 forms an annular groove 2121 extending circumferentially. The first flange portion 211 is located outside the first wall 111 of the side beam 11 in the first direction. The second sleeve 22 extends into the second hole section 1012 from the outside of the second wall 112 and extends towards the first cylinder portion 212. Three claw members 221 are provided at one end of the second sleeve 22 facing the first cylinder portion 212. The three claw members 221 are arranged at intervals along the circumferential direction of the second sleeve 22. The claw members 221 are snap-connected to the groove 2121. The claw members 221 cooperate with the first cylinder portion 212 and the first flange portion 211 to define a snap groove 201, and the first wall 111 is clamped in the first snap groove 201.

[0159] When the sleeve member 20 is assembled with the side beam 11, the first cylinder portion 212 of the first sleeve 21 can extend into the fixing hole 101 from the outside of the first wall 111 of the side beam 11 in the first direction. The first flange portion 211 abuts against the periphery of the first hole section 1011 on the first wall 111. The second sleeve 22 extends into the fixing hole 101 from the outside of the second wall 112 of the side beam 11 along the first direction and is snap-connected to the groove 2121 of the first cylinder portion 212 through the claw members 221. After the first sleeve 21 and the second sleeve 22 are snap-connected, an end face of one end of the claw member 221 facing the first wall 111 cooperates with the outer peripheral surface of the first cylinder portion 212 and a surface of the first flange portion 211 facing the first wall 111 to define a snap groove 201 for clamping with the first wall 111.

[0160] In this embodiment, by disposing the sleeve member 20 in the fixing hole 101 of the side beam 11 of the box body 10, the need for strengthening the rigidity of the box body 10 at the fixing hole 101 of the side beam 11 is well met. The sleeve member 20 is snap-connected to the side beam 11, and the first sleeve 21 and the second sleeve 22 of the sleeve member 20 are detachably connected, making the assembly and fixation of the sleeve member 20 and the box body 10 more convenient and rapid, thereby greatly improving the assembly efficiency of the battery device 100.

[0161] In other embodiments of the present application, with reference to Figure 13 As shown, the second sleeve 22 may also be provided with a second flange portion 222. The sleeve member 20 can be snap-connected to the side beam 11 through the cooperation of the first flange portion 211 and the second flange portion 222. In this way, the snap connection between the sleeve member 20 and the side beam 11 can be more stable. At this time, the positions of the slot 2121 and the claw 221 in the sleeve member 20 can be flexibly arranged according to needs. A filling member can be disposed between the first wall 111 and the second wall 112 to improve the overall structural strength of the side beam 11 and make the structure of the side beam 11 more stable at the sleeve member 20. The second sleeve 22 can also be adhesively fixed to the second wall 112 to improve the connection stability with the side beam 11.

[0162] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present application, and they should all be covered within the scope of the claims and the description of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery device, characterized in that: include: A box body (10), the box body (10) comprising a side beam (11), the side beam (11) comprising a first wall (111) and a second wall (112) arranged at intervals in a first direction, the side beam (11) being provided with a fixing hole (101), the fixing hole (101) penetrating the first wall (111) and the second wall (112) along the first direction; A sleeve member (20), wherein the sleeve member (20) is disposed in the fixing hole (101), the sleeve member (20) is snap-connected with the first wall (111) and / or the second wall (112), and the sleeve member (20) is formed with an assembly hole (202), wherein the assembly hole (202) passes through the sleeve member (20) along the first direction and is used for inserting a fastener, wherein the sleeve member (20) comprises: a first sleeve (21) and a second sleeve (22), wherein the first sleeve (21) and the second sleeve (22) are arranged along the first direction and are detachably connected.

2. The battery device according to claim 1, characterized in that: The first sleeve (21) is inserted through the first wall (111) and is snap-connected to the first wall (111); and / or the second sleeve (22) is inserted through the second wall (112) and is snap-connected to the second wall (112).

3. The battery device according to claim 1, characterized in that: The first sleeve (21) is inserted through the first wall (111), and the second sleeve (22) is inserted through the second wall (112); the first sleeve (21) and the second sleeve (22) cooperate with each other to be snap-connected with the first wall (111) or the second wall (112).

4. The battery device according to claim 3, characterized in that: The portion of the fixing hole (101) on the first wall (111) is a first hole section (1011), and the portion of the fixing hole (101) on the second wall (112) is a second hole section (1012). The first sleeve (21) and the second sleeve (22) cooperate to define a snap-fit ​​groove (201), and the periphery of the first hole section (1011) or the periphery of the second hole section (1012) fits into the snap-fit ​​groove (201).

5. The battery device according to claim 4, characterized in that: A first flange portion (211) protruding radially outward is formed at one end of the first sleeve (21) facing away from the second sleeve (22), and the first flange portion (211) cooperates with an end of the second sleeve (22) facing the first sleeve (21) to define the clamping groove (201).

6. The battery device according to claim 5, characterized in that: The second sleeve (22) is adhesively connected to the second wall (112).

7. The battery device according to claim 1, characterized in that: A first flange portion (211) protruding radially outward is formed at one end of the first sleeve (21) away from the second sleeve (22), and a second flange portion (222) protruding radially outward is formed at one end of the second sleeve (22) away from the first sleeve (21). The first flange portion (211) and the second flange portion (222) are respectively arranged on both sides of the side beam (11) in the first direction, and the side beam (11) is clamped between the first flange portion (211) and the second flange portion (222).

8. The battery device according to claim 1, characterized in that: The first sleeve (21) and the second sleeve (22) are connected by snapping or threading.

9. The battery device according to claim 8, characterized in that: One of the first sleeve (21) and the second sleeve (22) is provided with a slot (2121) and the other is provided with a claw (221), and the first sleeve (21) and the second sleeve (22) are connected by being clamped with the slot (2121) via the claw (221).

10. The battery device according to claim 9, characterized in that: The clamping groove (2121) extends in a ring shape along the circumference of the sleeve member (20).

11. The battery device according to claim 9, characterized in that: In a direction from the clamping groove (2121) along the first direction toward the clamping claw (221), the bottom wall of the clamping groove (2121) extends inwardly and obliquely along the radial direction of the sleeve member (20).

12. The battery device according to claim 11, characterized in that: The inclination angle of the bottom wall is greater than or equal to 15° and less than or equal to 20°.

13. The battery device according to claim 9, characterized in that: The number of the claws (221) is at least three, and the plurality of claws (221) are arranged at intervals along the circumference of the sleeve member (20).

14. The battery device according to claim 9, characterized in that: The first sleeve (21) comprises a first flange portion (211) and a first barrel portion (212); the first barrel portion (212) is provided with the clamping groove (2121); the first flange portion (211) is provided at an end of the first barrel portion (212) facing away from the second sleeve (22); the second sleeve (22) is provided with the clamping claw (221) at an end facing the first sleeve (21); the clamping claw (221), the first barrel portion (212) and the first flange portion (211) cooperate to define a clamping groove (201) that is clamped with the first wall (111).

15. The battery device according to claim 1, characterized in that: The side beam (11) further comprises a filling piece, the filling piece is filled between the first wall (111) and the second wall (112), and the fixing hole (101) passes through the filling piece along the first direction.

16. The battery device according to claim 1, characterized in that: The box body (10) is a non-metallic part.

17. An electrical device, characterized in that: include: An electrical main body and a battery device according to any one of claims 1 to 16, wherein the battery device is fixed to the electrical main body by a fastener passing through the assembly hole (202).

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