Battery device and electric device

Abstract

The embodiment of the utility model provides a battery device and a power utilization device. The battery device includes: a case; the battery monomer group cluster is arranged in the box body and is adhered to the bottom of the box body, and the battery monomer group cluster comprises at least two battery monomer groups which are sequentially arranged along a first direction; the glue blocking film is arranged between two adjacent battery monomer groups in the battery monomer group cluster, and the glue blocking film is constructed to form an accommodating space; and the electrical part is arranged in the accommodating space. The electrical part is directly arranged in the box body and is positioned in the area for accommodating the battery monomer group, and an electrical part mounting space does not need to be isolated independently through a cross beam and a longitudinal beam, so that the internal structure of the battery device is simplified, and the utilization rate of the internal space of the box body is improved; and the accommodating space for accommodating the electrical part is formed by arranging the glue blocking film, so that the structural glue can be prevented from overflowing to the mounting area of the electrical part in the assembly process, and the problems that the structural glue pollutes the electrical part or influences the assembly of the electrical part and the like are solved.

Description

Technical Field

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

[0002] In order to prevent structural adhesive overflowing during the assembly of battery cells from affecting electrical components and other parts, longitudinal beams and cross beams are usually used to isolate independent installation areas, which leads to a complex internal structure of the battery device and low space utilization. Utility Model Content

[0003] Some embodiments of the present application provide a battery device and an electrical device to alleviate the problem of complex internal structure of the battery device.

[0004] Some embodiments of the present application provide a battery device comprising: a box body; a battery cell cluster disposed in the box body and bonded to the bottom of the box body, the battery cell cluster comprising at least two battery cell groups arranged sequentially along a first direction; a barrier film disposed between two adjacent battery cell groups in the battery cell cluster, the barrier film being constructed to form a accommodating space; and electrical components disposed in the accommodating space.

[0005] In the above embodiment, the electrical components are directly arranged in the box and are located in the area for accommodating the battery cell group. There is no need to separately isolate the electrical component installation space through crossbeams and longitudinal beams, which simplifies the internal structure of the battery device and improves the utilization rate of the internal space of the box. In addition, by providing a blocking film to form a accommodating space for accommodating electrical components, it is possible to prevent the structural adhesive from overflowing into the installation area of ​​the electrical components during the assembly process, thereby alleviating the problem that the structural adhesive may contaminate the electrical components or affect their assembly.

[0006] In some embodiments, the adhesive film includes: a supporting portion on which the electrical component is arranged; and side portions located on both sides of the supporting portion in the width direction, the side portions are connected to the supporting portion and extend upward from the supporting portion, and the electrical component is located between the two side portions.

[0007] In the above embodiment, the two side portions and the supporting portion of the adhesive blocking film make the adhesive blocking film as a whole have a U-shaped structure, which has higher structural strength and is not easy to deform compared to the form of only sticking a flat adhesive blocking part on the side of the electrical component; in addition, in the process of applying structural adhesive to install the battery cell group, the U-shaped adhesive blocking film can guide the overflow glue to be concentrated between the adhesive blocking film and the adjacent battery cell group, and can allow the battery cell group to have a certain overflow glue height, thereby improving the overall strength of the battery device.

[0008] In some embodiments, the side portion extends upward from the supporting portion in a range of 30 mm to 40 mm.

[0009] In the above embodiment, the side of the adhesive blocking film is folded upward from the supporting portion and extends to a height of 30 mm to 40 mm; this height range has been verified by engineering. While ensuring the adhesive blocking performance, it also provides a reasonable space for the normal overflow of the structural adhesive, allowing the battery cell group to form a stable adhesive overflow height during the assembly process, thereby enhancing the bonding strength between the battery cell group and the box, and further improving the overall structural strength and long-term reliability of the battery device.

[0010] In some embodiments, the adhesive blocking film further includes a reinforcing portion provided at a connection between the supporting portion and the side portion.

[0011] In the above embodiment, the reinforcement portion is provided in this area, which can significantly improve the structural strength and deformation resistance of the adhesive retaining film.

[0012] In some embodiments, the battery device further includes: a bracket disposed below the adhesive film and configured to support the adhesive film.

[0013] In the above embodiment, the bracket is arranged between the bottom of the adhesive film and the bottom of the box, forming an effective support structure for the adhesive film, enhancing the bearing capacity and structural rigidity of the adhesive film, and improving its stability under stress, thereby significantly reducing the risk of displacement or deformation of the adhesive film.

[0014] In some embodiments, the bracket includes: a support plate on which the adhesive blocking film is disposed; and support portions disposed on two opposite sides of the support plate and extending toward the bottom of the box.

[0015] In the above embodiment, the setting of the support part forms a certain spatial distance between the support plate and the bottom surface of the box body, so that there is a gap between the adhesive blocking film and the bottom of the box body. Therefore, the possibility of the adhesive blocking film directly contacting the structural adhesive potting area can be reduced, and the direct force of the structural adhesive on the adhesive blocking film is reduced when the structural adhesive overflows under pressure, thereby preventing the adhesive blocking film from being deformed due to uneven force.

[0016] In some embodiments, the bracket further includes: a positioning member, which passes through the support plate and the adhesive film in sequence from a side close to the bottom of the box body and is configured to position the electrical component.

[0017] In the above embodiment, one end of the positioning member is located on the side of the support plate adjacent to the bottom of the box body, and the other end of the positioning member passes through the support plate and the adhesive film from bottom to top, extending to the installation position of the electrical component for assembling and positioning the electrical component.

[0018] In some embodiments, the battery device further includes: an adhesive member disposed between the adhesive film and the bracket.

[0019] In the above embodiment, an adhesive member is provided on the bottom area of ​​the adhesive blocking film, and the adhesive blocking film is fixed to the bracket via the adhesive member.

[0020] In some embodiments, an extension dimension of the adhesive blocking film along the first direction is greater than an extension dimension of the bracket along the first direction.

[0021] In the above embodiment, the extension length of the adhesive film along the first direction is greater than the corresponding size of the bracket, so that the adhesive film can completely cover the setting area of ​​the bracket in the first direction. This structure can reduce the interference or obstruction of the bracket to the battery cell group during the assembly of the battery cell group, thereby improving the smoothness and feasibility of the assembly of the battery cell group.

[0022] In some embodiments, the number of the battery cell clusters is at least two, and the at least two battery cell clusters are sequentially arranged in the box along a second direction, and the second direction intersects with the first direction.

[0023] In the above embodiment, by arranging multiple battery cell clusters in the box, not only the energy density of the battery device is improved, but also modular expansion design is supported, which facilitates flexible configuration of the battery system capacity according to actual needs.

[0024] In some embodiments, the battery device further includes: a partition beam disposed between two adjacent battery cell clusters and extending along the first direction, wherein the partition beam is connected to the box.

[0025] In the above embodiment, the length extension direction of the partition beam is consistent with the first direction, and the two ends of the partition beam in the first direction are fixedly connected to the box body respectively. The partition beam is used to structurally separate and spatially position two adjacent battery cell clusters, which not only realizes the physical isolation between the battery cell clusters, but also plays a role in supporting, positioning and strengthening the box structure, which helps to improve the assembly accuracy and structural stability of the battery cell clusters.

[0026] In some embodiments, the battery device further includes: a bracket, a first end of which is connected to the partition beam, and a second end of which is connected to the box body, and the adhesive blocking film is provided on the bracket.

[0027] In the above embodiment, the bracket can realize effective support by utilizing the spatial layout between the partition beam and the box body, which not only improves the installation rigidity of the adhesive retaining film, but also prevents the adhesive retaining film from deflecting or collapsing during the structural adhesive potting process.

[0028] In some embodiments, the adhesive blocking film is made of an electrically insulating thin film material.

[0029] In the above embodiment, the adhesive barrier film is made of an electrically insulating film material, occupies little space, is non-conductive, and can isolate the side of the battery cell group from the installation area of ​​the electrical components. This material selection not only satisfies the adhesive barrier film's function of restricting the flow of structural adhesive during assembly, but also provides protection in terms of electrical safety. It is suitable for application scenarios where the distance between electrical components and battery cell groups is small, and helps to improve the space utilization of the battery device.

[0030] Some embodiments of the present application further provide an electrical device comprising the above-mentioned battery device.

[0031] The electrical device includes a battery device and accordingly has the beneficial effects of the battery device.

[0032] Based on the above technical solution, this application has at least the following beneficial effects:

[0033] In some embodiments, the electrical components are directly disposed in the box and are located in the area for accommodating the battery cell group. There is no need to separately isolate the electrical component installation space through crossbeams and longitudinal beams, which simplifies the internal structure of the battery device and improves the utilization rate of the internal space of the box. By providing a blocking film to form a accommodating space for accommodating electrical components, the structural adhesive can be prevented from overflowing into the installation area of ​​the electrical components during the assembly process, thereby alleviating problems such as the structural adhesive contaminating the electrical components or affecting their assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without creative work.

[0035] Figure 1 is a schematic structural diagram of a vehicle disclosed in some embodiments of the present application;

[0036] Figure 2 is a schematic diagram of the exploded structure of a battery device disclosed in some embodiments of the present application;

[0037] Figure 3 This is a schematic diagram of the structure of a battery device box disclosed in some embodiments of the present application;

[0038] Figure 4 This is a schematic structural diagram of a battery device box disclosed in some other embodiments of the present application;

[0039] Figure 5 This is a schematic diagram of the exploded structure of a glue-blocking film and a bracket disclosed in some embodiments of the present application;

[0040] Figure 6 This is a schematic structural diagram of a glue-blocking film disclosed in some embodiments of the present application;

[0041] Figure 7 is a schematic structural diagram of a bracket disclosed in some embodiments of the present application;

[0042] Figure 8 is a bottom-up schematic diagram of a glue-blocking film disclosed in some embodiments of the present application;

[0043] Figure 9 is a partial cross-sectional schematic diagram of a battery device disclosed in some embodiments of the present application;

[0044] Figure 10 This is a schematic structural diagram of a rubber-blocking film disposed on a bracket disclosed in some embodiments of the present application.

[0045] In the drawings, the drawings are not drawn to scale.

[0046] Marking instructions: 1-box; 11-first box; 12-second box; 2-battery cell cluster; 21-battery cell group; 3-blocking film; 3a-accommodating space; 31-supporting part; 32-side; 33-reinforcement part; 34-avoidance hole; 4-electrical parts; 5-bracket; 51-support plate; 52-support part; 53-positioning part; 54-connecting part; 55-avoidance part; 6-adhesive part; 7-partition beam; 100-battery device; 200-vehicle; 201-axle; 202-wheel; 203-motor; 204-controller. DETAILED DESCRIPTION

[0047] The following detailed description of the embodiments of the present application is provided in conjunction with the accompanying drawings and examples. The following detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of the present application, but are not intended to limit the scope of the present application, that is, the present application is not limited to the described embodiments.

[0048] In the description of this application, it should be noted that, unless otherwise specified, "multiple" means more than two; the terms "upper", "lower", "left", "right", "inside", "outside", etc., indicating directions or positional relationships, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on this application. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. "Vertical" is not strictly perpendicular, but is within the allowable error range. "Parallel" is not strictly parallel, but is within the allowable error range.

[0049] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of this application. In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0050] As the market evolves, the application of battery devices is becoming increasingly widespread. Currently, battery devices are not only used in energy storage power systems such as hydropower, thermal power, wind power, and solar power plants, but are also widely used in electric vehicles such as electric motorcycles and electric vehicles, as well as in a variety of other fields. This shows that battery devices can not only serve as power sources for electrical devices, but can also serve as energy storage components in various energy storage systems.

[0051] refer to Figure 1 In some embodiments, the battery device serves as a power source for an electrical device, which is a vehicle 200. The vehicle 200 may be a fuel vehicle, a gas vehicle, or a new energy vehicle. The new energy vehicle may be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle.

[0052] A battery device 100 is installed inside vehicle 200. Battery device 100 can be located at the bottom, front, or rear of vehicle 200. Battery device 100 can be used to power vehicle 200. For example, battery device 100 can serve as an operating power source for vehicle 200. Vehicle 200 also includes an axle 201, wheels 202 connected to axle 201, a motor 203, and a controller 204. Motor 203 is used to drive axle 201, and controller 204 is used to control the operation of motor 203. Battery device 100 can be used to provide power to motor 203 and other components of the vehicle.

[0053] Therefore, the battery device 100 can not only serve as an operating power source for the vehicle 200 , but also serve as a driving power source for the vehicle 200 , replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 200 .

[0054] refer to Figure 2In some embodiments, the battery device 100 includes a housing 1 and a battery cell group 21, which is housed within the housing 1. The housing 1 includes a first housing 11 and a second housing 12, which cover each other and together define a storage space for the battery cell group 21. The second housing 12 can be a hollow structure with one end open, and the first housing 11 can be a plate-shaped structure, with the first housing 11 covering the open side of the second housing 12, so that the first housing 11 and the second housing 12 together define a storage space. The first housing 11 and the second housing 12 can also be hollow structures with one end open, with the open side of the first housing 11 covering the open side of the second housing 12. Of course, the housing 1 formed by the first housing 11 and the second housing 12 can have various shapes, such as a cylinder or a rectangular parallelepiped.

[0055] There may be multiple battery cell groups 21, and these groups may be connected in series, in parallel, or in a hybrid configuration. A hybrid configuration refers to a combination of series and parallel connections within the multiple battery cell groups 21. The multiple battery cell groups 21 may be connected in series, in parallel, or in a hybrid configuration, and then the entire battery cell group 21 is housed within the housing 1. Alternatively, the battery device 100 may be constructed by first connecting multiple battery cell groups 21 in series, in parallel, or in a hybrid configuration to form a battery device module. The multiple battery device modules are then connected in series, in parallel, or in a hybrid configuration to form a single unit housed within the housing 1. A battery cell group 21 includes multiple battery cells.

[0056] In some embodiments, the battery device 100 further includes electrical components 4. The electrical components 4 include a high-voltage box, a battery management system, or various detection components.

[0057] The high-voltage box is a key connection point between the high-voltage positive and negative electrodes of the battery unit 100 and other high-voltage electrical equipment in the vehicle, enabling the distribution of high-voltage electrical energy. The high-voltage box can also be used for on / off control of high-voltage circuits, overcurrent / short-circuit protection, status monitoring, and signal acquisition.

[0058] In order to achieve the fixation of the battery cell group and the box body, structural adhesive is usually applied to the bottom of the box body, and the battery cell group is pressed onto it. During the assembly process, the structural adhesive is squeezed and overflows in the circumferential direction of the battery cell group. In order to prevent the structural adhesive overflowing from the battery cell group area from contaminating the electrical components or affecting their installation and normal operation, in some related technologies, cross beams and longitudinal beams are used to isolate an independent area at the front or rear end of the box body for accommodating electrical components. However, this solution requires the additional provision of structural beams to form an isolation area, which complicates the structure around the electrical components and increases their occupied space in the box body, which is not conducive to the overall lightweighting of the system and the improvement of space utilization.

[0059] Based on this, some embodiments of the present application provide a battery device and an electrical device to alleviate problems such as the complex internal structure and low space utilization of the battery device.

[0060] refer to Figure 3 and Figure 4 In some embodiments, the battery device 100 includes:

[0061] Box 1;

[0062] A battery cell cluster 2 is disposed in the box body 1 and bonded to the bottom of the box body 1. The battery cell cluster 2 includes at least two battery cell groups 21 arranged in sequence along a first direction X.

[0063] A blocking film 3 is provided between two adjacent battery cell groups 21 in the battery cell cluster 2, and the blocking film 3 is configured to form an accommodating space 3a; and

[0064] The electrical components 4 are arranged in the accommodating space 3a.

[0065] In the above embodiment, the electrical component 4 is directly arranged in the box body 1 and is located in the area for accommodating the battery cell group 21. There is no need to separately isolate the electrical component installation space through crossbeams and longitudinal beams; and by providing a glue blocking film 3 to form an accommodating space 3a for accommodating the electrical component 4, it is possible to prevent the structural adhesive from overflowing into the installation area of ​​the electrical component 4 during the assembly process, thereby alleviating the problem that the structural adhesive contaminates the electrical component or affects its assembly. The embodiment of the present disclosure not only improves the convenience of assembling electrical components, but also significantly simplifies the internal structure of the battery device 100, improves the utilization rate of the internal space of the box body 1, and reduces the overall manufacturing and assembly costs.

[0066] In some embodiments, the electrical component 4 is disposed between two adjacent battery cell groups 21 in the middle region of the battery cell cluster 2 .

[0067] In the above embodiment, the electrical component 4 is centrally placed, which not only optimizes the space utilization inside the battery device 100, but also reduces the need for additional isolation structures, thereby simplifying the overall structure and reducing costs; and placing the electrical component 4 in the central area helps to balance the overall weight distribution of the battery cell cluster, thereby improving the stability and assembly efficiency of the system.

[0068] refer to Figure 5 and Figure 6 In some embodiments, the adhesive film 3 includes:

[0069] A supporting portion 31 on which the electrical components 4 are mounted; and

[0070] The side portions 32 are located on both sides of the supporting portion 31 in the width direction. The side portions 32 are connected to the supporting portion 31 and extend upward from the supporting portion 31 . The electrical component 4 is located between the two side portions 32 .

[0071] In the above embodiment, the two side portions 32 and the supporting portion 31 of the adhesive blocking film 3 make the adhesive blocking film 3 as a whole have a U-shaped structure. Compared with the form of only pasting a flat adhesive blocking piece on the side of the electrical component, the adhesive blocking film 3 with a U-shaped structure of the present application has higher structural strength and is not easy to deform; in addition, in the process of applying structural adhesive to install the battery cell group 21, the adhesive blocking film 3 with a U-shaped structure can guide the overflow glue to be concentrated between the adhesive blocking film 3 and the adjacent battery cell group 21, and can allow the battery cell group 21 to have a certain overflow glue height, thereby improving the overall strength of the battery device 100.

[0072] In the above embodiment, since the overflowing glue will continue to generate squeezing pressure on the glue blocking film 3 during the curing process, the U-shaped glue blocking film 3 can reduce the situation where the electrical components are difficult to assemble or cannot be assembled due to the occupation of the electrical component installation area due to deflection and tilting, compared with the flat-plate glue blocking parts. The U-shaped glue blocking film 3 has higher structural rigidity and self-supporting ability, can effectively resist the lateral pressure caused by the overflowing glue, avoid deflection or collapse, thereby ensuring the integrity of the electrical component installation space and improving assembly efficiency.

[0073] In the above embodiment, the two side portions 32 are arranged along the first direction X at intervals.

[0074] In some embodiments, an angle greater than zero is formed between the side portion 32 and the supporting portion 31. Optionally, the angle is 90 degrees.

[0075] In the above embodiment, the two side portions 32 of the U-shaped adhesive blocking film 3 are connected to the supporting portion 31 in the form of a 90° flange. On the one hand, this structure can effectively prevent the structural adhesive from overflowing into the installation area of ​​the electrical component 4. On the other hand, it helps to limit the overflowed structural adhesive between the adhesive blocking film 3 and the adjacent battery cell group 21, allowing the battery cell group 21 to have a certain adhesive overflow height, thereby improving the overall structural strength of the battery device 100.

[0076] In some embodiments, the side portion 32 extends upward from the supporting portion 31 by a length ranging from 30 mm to 40 mm.

[0077] In the above embodiment, the adhesive blocking film 3 adopts a U-shaped structure, and its two side portions 32 are folded upward and extended from the supporting portion 31, with an extension height of 30 mm to 40 mm; this height range has been verified by engineering, and while ensuring the adhesive blocking performance, it also provides a reasonable space for the normal overflow of the structural adhesive, which can prevent the structural adhesive from overflowing into the electrical component area and affecting the assembly and function of the electrical component 4; and it can also allow the battery cell group 21 to form a stable adhesive overflow height during the assembly process, thereby enhancing the bonding strength between the battery cell group 21 and the box body 1, and further improving the overall structural strength and long-term use reliability of the battery device 100.

[0078] In some embodiments, the adhesive film 3 further includes:

[0079] The reinforcement portion 33 is provided at the connection between the supporting portion 31 and the side portion 32 .

[0080] In the above embodiment, the connection area between the supporting portion 31 and the side portion 32 forms a corner, and the reinforcement portion 33 is provided at the corner area.

[0081] During the process of applying the structural adhesive and installing the battery cell group 21, the adhesive film 3 will be subjected to continuous lateral pressure from the adhesive, especially in the corner area of ​​the U-shaped structure, where stress concentration is more likely to occur. Based on this, the present application provides a reinforcement portion 33 in this area, which can significantly improve the structural strength and deformation resistance of the adhesive film 3.

[0082] In addition, the reinforcement portion 33 is provided in the connection area between the supporting portion 31 and the side portion 32, which can also enhance the overall bearing capacity of the adhesive blocking film 3, reduce the adhesive blocking film 3 from being offset or collapsed due to force, and then invade the installation space of the electrical components, causing assembly difficulties. Therefore, the reinforcement structure not only improves the adhesive blocking performance, but also significantly improves the assembly convenience and process stability of the electrical components.

[0083] In some embodiments, a plurality of reinforcing portions 33 are disposed at the connection between each side portion 32 and the supporting portion 31 , and the reinforcing portions 33 are sequentially disposed along the second direction Y.

[0084] Optionally, the reinforcement portion 33 includes a local reinforcement rib or a thickening structure.

[0085] refer to Figure 5 and Figure 7 In some embodiments, the battery device 100 further includes:

[0086] The bracket 5 is disposed below the adhesive film 3 and is configured to support the electrical component 4 located in the accommodating space 3 a.

[0087] In the above embodiment, the bracket 5 is disposed between the bottom of the adhesive film 3 and the bottom of the housing 1. The accommodation space 3a formed by the adhesive film 3 houses the electrical components 4. Therefore, the bracket 5 constitutes an effective support structure for the electrical components 4. During the application of structural adhesive and installation of the battery cell pack 21, the adhesive film 3 is subjected to pressure from multiple directions and is prone to deformation, displacement, or collapse. Therefore, by providing the bracket 5 to support the adhesive film 3, the bearing capacity and structural rigidity of the adhesive film 3 can be enhanced, and its stability under stress can be improved, thereby significantly reducing the risk of displacement or deformation of the adhesive film 3.

[0088] In addition, the matching design between the bracket 5 and the adhesive film 3 can improve the positioning accuracy of the adhesive film 3 during the assembly process, and also help maintain its original posture, ensuring that the spatial integrity of the electrical component installation area is not affected as much as possible. Therefore, by setting the bracket 5, while improving the adhesive blocking performance of the adhesive film 3, it also improves the assembly convenience of the electrical components and the stability of the manufacturing process.

[0089] During the placement of the battery pack 21 into the housing 1, the structural adhesive at the bottom of the housing 1 overflows upward due to the downward pressure from the battery pack 21. Due to differences in the fluidity and pressure of the structural adhesive, the overflow height can vary significantly between different battery packs 21. If the overflow height is high, the structural adhesive may flow into the electrical component installation area, covering the component's mounting and positioning structures or occupying installation space. This can prevent accurate installation of the component or require manual cleanup, impacting assembly efficiency and product consistency.

[0090] To address the above issues, this application proposes an assembly sequence: before installing the battery pack 21 into the housing 1, pre-install the bracket 5 at the designated location and install the adhesive film 3 on the bracket 5; then, place the battery pack 21 into the housing 1 and secure it with adhesive, and finally install the electrical components 4. This assembly sequence effectively isolates the overflow path of the structural adhesive using the adhesive film 3, preventing it from invading the electrical component installation area, thereby ensuring smooth electrical component assembly.

[0091] In some embodiments, the support 5 comprises:

[0092] A support plate 51 on which a blocking film 3 is disposed; and

[0093] The support portions 52 are disposed on two opposite sides of the support plate 51 and extend toward the bottom of the box body 1 .

[0094] In the above embodiment, the two opposite sides of the support plate 51 are two opposite sides arranged along the first direction X, and the support portions 52 on the two opposite sides may be symmetrically arranged.

[0095] In the above embodiment, the support plate 51 is used to support the adhesive film 3, and the support parts 52 are respectively connected to the opposite sides of the support plate 51 and extend toward the bottom of the box body 1, and can extend to the vicinity of the bottom of the box body 1 or contact the bottom of the box body 1.

[0096] The setting of the support portion 52 forms a certain spatial distance between the support plate 51 and the bottom surface of the box body 1, so that there is a gap between the adhesive blocking film 3 and the bottom of the box body 1. Therefore, it can reduce the possibility of the adhesive blocking film 3 directly contacting the structural adhesive potting area, and reduce the direct force of the structural adhesive on the adhesive blocking film 3 when the structural adhesive is pressurized and overflows, thereby preventing the adhesive blocking film 3 from being deformed due to uneven force.

[0097] Furthermore, the support plate 51 and the support portion 52 enable the bracket 5 to form an inverted U-shaped structure, which can provide good support rigidity for the adhesive film 3, improve its stability during assembly, and further enhance the sealing performance and anti-deformation ability of the adhesive film 3.

[0098] In some embodiments, the distance between the support plate 51 and the bottom of the box body 1 ranges from 10 mm to 15 mm.

[0099] In some embodiments, the support plate 51 is a plate-like structure with a flat surface, and the supporting portion 31 of the adhesive blocking film 3 is a film-like structure with a flat surface. The supporting portion 31 of the adhesive blocking film 3 is placed on the support plate 51, and the supporting portion 31 is supported by the support plate 51, thereby improving the overall structural strength of the adhesive blocking film 3.

[0100] In some embodiments, the support 5 further comprises:

[0101] The positioning member 53 passes through the support plate 51 and the adhesive film 3 in sequence from a side close to the bottom of the box body 1 and is configured to position the electrical component 4 .

[0102] In the above embodiment, one end of the positioning member 53 is located on the side of the support plate 51 adjacent to the bottom of the box body 1, and the other end of the positioning member 53 passes through the support plate 51 and the adhesive film 3 from bottom to top, and extends to the installation position of the electrical component 4, for assembling and positioning the electrical component 4.

[0103] The introduction of the positioning member 53 not only realizes the precise positioning of the electrical component 4 in the box 1 , but also reduces the process complexity brought about by the reliance on additional positioning structures in related assembly technologies.

[0104] In some embodiments, the positioning member 53 includes a positioning bolt.

[0105] In some embodiments, two positioning members 53 are provided at one end of the bracket 5 in the second direction Y, and the two positioning members 53 are spaced apart along the first direction X. Two positioning members 53 are also provided at the other end of the bracket 5 in the second direction Y, and the two positioning members 53 are spaced apart along the first direction X.

[0106] In some embodiments, the adhesive blocking film 3 is provided with an escape hole 34 for allowing the positioning member 53 to pass through. Optionally, the escape hole 34 includes a circular hole or a U-shaped hole.

[0107] In some embodiments, a plurality of avoidance portions 55 are provided on the bracket 5 , and the avoidance portions 55 are used to adapt to structural parts of the electrical component 4 to avoid corresponding structural parts on the electrical component 4 .

[0108] In some embodiments, the structures and sizes of the avoidance portions 55 may be different, and the structures and sizes of the avoidance portions 55 are adapted to the structural parts on the electrical component 4 .

[0109] In some embodiments, the avoidance portion 55 includes structures such as a hollow groove, a groove, and a protrusion. Optionally, the shape of the avoidance portion 55 includes a circle or an ellipse.

[0110] refer to Figure 8 In some embodiments, the battery device 100 further includes:

[0111] The adhesive member 6 is disposed between the adhesive blocking film 3 and the bracket 5 .

[0112] In the above embodiment, the adhesive member 6 is provided at the bottom area of ​​the adhesive blocking film 3 , and the adhesive blocking film 3 is fixed to the bracket 5 via the adhesive member 6 .

[0113] The adhesive component 6 is pasted on the supporting portion 31 of the adhesive film 3 in a large-area pasting manner. Compared with the point pasting method, the bonding area is larger and the force is evenly distributed. During the structural adhesive encapsulation process, the ability of the adhesive film 3 to resist lateral pressure can be improved, and the adhesive film 3 can be prevented from debonding, offset or deformation, thereby improving the controllability of the structural adhesive overflow path and further improving the convenience and reliability of the assembly of the electrical component 4.

[0114] In some embodiments, two adhesive members 6 are spaced apart on one side of the adhesive barrier film 3 adjacent to the bottom of the box 1 . The two adhesive members 6 are spaced apart along the first direction X, and the length of each adhesive member 6 extends in the same direction as the second direction Y. In some embodiments, two adhesive members 6 are spaced apart and attached to the bottom of the supporting portion 31 .

[0115] refer to Figure 9 and Figure 10 In some embodiments, the extension dimension of the adhesive film 3 along the first direction X is greater than the extension dimension of the bracket 5 along the first direction X.

[0116] In the above embodiment, the extension length of the adhesive film 3 along the first direction X is greater than the corresponding size of the bracket 5, so that the adhesive film 3 can completely cover the installation area of ​​the bracket 5 in the first direction X. This structure can reduce the interference or obstruction of the bracket 5 on the battery cell group 21 during the assembly process of the battery cell group 21, thereby improving the smoothness and feasibility of the assembly of the battery cell group 21.

[0117] In some embodiments, the projection area of ​​the adhesive blocking film 3 on the bottom of the box body 1 is larger than the projection area of ​​the bracket 5 on the bottom of the box body 1 , thereby ensuring that the bracket 5 is located within the contour range below the adhesive blocking film 3 .

[0118] In some embodiments, the adhesive film 3 includes two side portions 32 spaced apart along the first direction X, and the bracket 5 includes two support portions 52 spaced apart along the first direction X. Each side portion 32 is closer to the battery cell group 21 on the same side relative to the support portion 52 on the same side of the bracket 5.

[0119] In some embodiments, a distance S is provided between the side portion 32 of the adhesive blocking film 3 and the supporting portion 52 of the bracket 5 along the first direction X. Optionally, the distance S is in a range of 3 mm to 5 mm.

[0120] refer to Figure 3 and Figure 4 In some embodiments, the number of the battery cell clusters 2 is at least two, and the at least two battery cell clusters 2 are sequentially arranged in the box 1 along the second direction Y, where the second direction Y intersects the first direction X.

[0121] In the above embodiment, by arranging multiple battery cell clusters 2 in the housing 1, not only the energy density of the battery device 100 is improved, but also modular expansion design is supported, which facilitates flexible configuration of the battery system capacity according to actual needs.

[0122] In the above embodiment, the number of battery cell clusters 2 is two, three, or more, and each battery cell cluster 2 includes two, three, or more battery cell groups 21. The battery cell clusters 2 are arranged sequentially along the second direction Y, and the battery cell groups 21 within each battery cell cluster 2 are vaguely arranged along the first direction X.

[0123] In some embodiments, the first direction X intersects the second direction Y, the second direction Y intersects the third direction Z, and the first direction X intersects the third direction Z. Alternatively, the first direction X is perpendicular to the second direction Y, the first direction X is perpendicular to the third direction Z, and the second direction Y is perpendicular to the third direction Z. The third direction Z is consistent with the height direction of the battery device 100, or the third direction Z is consistent with the direction from the bottom of the box 1 to the adhesive film 3.

[0124] In some embodiments, a blocking film 3 is provided between two adjacent battery cell groups 21 of each battery cell cluster 2 , and an electrical component 4 is provided in the accommodation space 3 a formed by each blocking film 3 . Optionally, the blocking film 3 is provided in the middle of the battery cell cluster 2 .

[0125] In some embodiments, the battery device 100 further includes a separation beam 7 . The separation beam 7 is disposed between two adjacent battery cell clusters 2 and extends along the first direction X. The separation beam 7 is connected to the box 1 .

[0126] In the above embodiment, the length extension direction of the partition beam 7 is consistent with the first direction X, and the two ends of the partition beam 7 located in the first direction X are respectively fixedly connected to the box body 1. The partition beam 7 is used to structurally separate and spatially position two adjacent battery cell clusters 2, which not only realizes the physical isolation between the battery cell clusters 2, but also plays a role in supporting, positioning and strengthening the box structure, which helps to improve the assembly accuracy and structural stability of the battery cell clusters 2.

[0127] In some embodiments, the battery device 100 further includes:

[0128] The bracket 5 has a first end connected to the partition beam 7 and a second end connected to the box body 1 . The adhesive film 3 is disposed on the bracket 5 .

[0129] In the above embodiment, the bracket 5 has a first end and a second end that are oppositely arranged in the second direction Y, wherein the first end of the bracket 5 is connected to the partition beam 7, and the second end of the bracket 5 is fixedly connected to the box body 1, and the adhesive film 3 is installed on the top of the bracket 5 or the corresponding supporting surface.

[0130] In the above embodiment, the bracket 5 can achieve effective support by utilizing the spatial layout between the partition beam 7 and the box body 1, which not only improves the installation rigidity of the adhesive film 3, but also prevents the adhesive film 3 from deflecting or collapsing during the structural adhesive potting process.

[0131] In an embodiment where three or more battery cell clusters 2 are provided within the housing 1, a partition beam 7 is provided between each adjacent battery cell cluster 2. A retaining film 3 is provided between a pair of adjacent battery cell groups 21 within each battery cell cluster 2, and an electrical component 4 is provided within the accommodation space 3a formed by each retaining film 3. Each retaining film 3 is supported by a bracket 5. The bracket 5 located between two adjacent partition beams 7 has its ends in the second direction Y connected to the adjacent partition beams 7 in a one-to-one correspondence. The bracket 5 located on the outermost side has its ends in the second direction Y fixedly connected to the partition beam 7 and the housing 1.

[0132] In some embodiments, the box body 1 includes a bottom and a circumferential side beam arranged around the bottom. The first end of the outermost bracket 5 is connected to the partition beam 7, and the second end of the bracket 5 is fixedly connected to the circumferential side beam of the box body 1.

[0133] In some embodiments, the bracket 5 includes a connecting portion 54 , which is provided at both ends of the bracket 5 in the second direction Y. The connecting portion 54 at the end of the bracket 5 is used to connect to the partition beam 7 or the circumferential side beam of the box body 1 .

[0134] Optionally, the connecting portion 54 at the end of the bracket 5 is welded to the partition beam 7 or the circumferential side beam of the box body 1 .

[0135] In some embodiments, the adhesive blocking film 3 is made of an electrically insulating thin film material.

[0136] In the above embodiment, the adhesive blocking film 3 is made of an electrically insulating film material, for example, flexible insulating materials such as polycarbonate (PC), polyethylene terephthalate (PET), polyimide (PI) or polypropylene (PP).

[0137] In the above embodiment, the adhesive blocking film 3 is made of an electrically insulating film material, occupies a small space, is non-conductive, and can isolate the side of the battery cell group 21 from the installation area of ​​the electrical component 4. This material selection not only satisfies the adhesive blocking film 3 to restrict the flow of structural adhesive during the assembly process, but also provides protection in terms of electrical safety. It is suitable for application scenarios where the distance between the electrical component 4 and the battery cell group 21 is small, and helps to improve the space utilization of the battery device 100.

[0138] In some embodiments, side portions 32 are provided around the supporting portion 31 of the adhesive blocking film 3 , and all side portions 32 form a closed structure to prevent the structural adhesive from overflowing into the accommodating space 3 a , thereby ensuring the sealing property.

[0139] In some embodiments, the adhesive blocking film 3 may be provided with avoidance structures such as hollow grooves, recesses, and protrusions to accommodate the electrical components 4 and the battery cell group 21 .

[0140] The assembly sequence of the battery device 100 is as follows: first, the bracket 5 is installed in the box 1, and the adhesive film 3 is fixed on the bracket 5; then, the battery cell group 21 is sequentially assembled on both sides of the adhesive film 3 along the first direction X; finally, the electrical component 4 is placed in the receiving space 3a enclosed by the adhesive film 3 to complete the assembly.

[0141] The electrical components 4 are placed in the middle area of ​​the battery cell cluster 2 and share the installation space with the battery cell group 21. There is no need to isolate a separate electrical component space through crossbeams and longitudinal beams, which not only simplifies the overall structural design but also improves the box space utilization.

[0142] The adhesive film 3 adopts a U-shaped structure. Compared with a flat structure, the U-shaped structure has higher mechanical strength and deformation resistance, and can better withstand the pressure of structural adhesive. At the same time, a bracket 5 and a positioning member 53 are added to the bottom of the box body 1 to provide a stable installation foundation for the electrical components 4.

[0143] The adhesive film 3 is made of polycarbonate (PC), which has excellent electrical insulation properties. By placing the adhesive film 3 between the battery pack 21 and the electrical components 4, physical and electrical isolation is achieved between the two, significantly reducing the risk of short circuits within the battery device 100.

[0144] In addition, the glue blocking film 3 also has good sealing and structural strength, which can effectively block the flow path of the foam glue and prevent it from overflowing into the electrical component area during the assembly process, thereby reducing the problem of electrical components 4 being unable to be normally assembled into the box due to glue overflow, and improving the overall assembly efficiency.

[0145] Some embodiments of the present disclosure further provide an electrical device, which includes the battery device 100 in any of the above embodiments.

[0146] In some embodiments, the battery device includes a vehicle 200 .

[0147] The electrical device includes the battery device 100 and accordingly has the beneficial effects of the battery device 100 .

[0148] Based on the above-mentioned embodiments of the present disclosure, in the absence of explicit negation or conflict, the technical features of one embodiment may be beneficially combined with one or more other embodiments.

[0149] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and components may be substituted with equivalents without departing from the scope of the present application. In particular, the various technical features described in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A battery device, characterized in that: include: Box (1); A battery cell cluster (2) is arranged in the box (1) and bonded to the bottom of the box (1), the battery cell cluster (2) comprising at least two battery cell groups (21) arranged in sequence along a first direction (X); A blocking film (3) is provided between two adjacent battery cell groups (21) in the battery cell group cluster (2), and the blocking film (3) is configured to form a receiving space (3a); and The electrical component (4) is arranged in the accommodating space (3a).

2. The battery device according to claim 1, wherein: The adhesive blocking film (3) comprises: a supporting portion (31) on which the electrical component (4) is disposed; and The side portions (32) are located on both sides of the supporting portion (31) in the width direction, the side portions (32) are connected to the supporting portion (31) and extend upward from the supporting portion (31), and the electrical component (4) is located between the two side portions (32).

3. The battery device according to claim 2, characterized in that The side portion (32) extends upward from the supporting portion (31) in a size range of 30 mm to 40 mm.

4. The battery device according to claim 2, wherein: The adhesive blocking film (3) further comprises: The reinforcing portion (33) is provided at the connection between the supporting portion (31) and the side portion (32).

5. The battery device according to claim 1, wherein: The battery device further comprises: A bracket (5) is provided below the adhesive blocking film (3) and is configured to support the electrical component (4) located in the accommodating space (3a).

6. The battery device according to claim 5, wherein: The bracket (5) comprises: a support plate (51) on which the adhesive blocking film (3) is disposed; and The support portion (52) is provided on two opposite sides of the support plate (51) and extends toward the bottom of the box body (1).

7. The battery device according to claim 6, characterized in that The bracket (5) further comprises: A positioning member (53) passes through the support plate (51) and the adhesive film (3) in sequence from a side close to the bottom of the box body (1) and is configured to position the electrical member (4).

8. The battery device according to claim 5, characterized in that The battery device further comprises: An adhesive component (6) is provided between the adhesive blocking film (3) and the bracket (5).

9. The battery device according to claim 5, characterized in that The extension dimension of the adhesive blocking film (3) along the first direction (X) is greater than the extension dimension of the bracket (5) along the first direction (X).

10. The battery device according to claim 1, wherein: The number of the battery cell clusters (2) is at least two, and the at least two battery cell clusters (2) are sequentially arranged in the box (1) along a second direction (Y), and the second direction (Y) intersects with the first direction (X).

11. The battery device according to claim 10, characterized in that The battery device further comprises: A partition beam (7) is provided between two adjacent battery cell clusters (2) and extends along the first direction (X); the partition beam (7) is connected to the box body (1).

12. The battery device according to claim 11, wherein: The battery device further comprises: A bracket (5) has a first end connected to the partition beam (7) and a second end connected to the box body (1); and the adhesive blocking film (3) is provided on the bracket (5).

13. The battery device according to any one of claims 1 to 12, characterized in that: The adhesive blocking film (3) is made of an electrically insulating thin film material.

14. An electrical device, characterized in that: Comprising the battery device according to any one of claims 1 to 13.

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