Battery device, energy storage device and power utilization device

Abstract

The embodiment of the utility model provides a battery device, an energy storage device and a power utilization device. The battery device comprises a box body assembly, a battery monomer assembly and an anti-collision assembly, and the battery monomer assembly is arranged in the box body assembly. The anti-collision assembly is arranged outside the box body assembly, and at least part of the anti-collision assembly protrudes out of the outer surface of the box body assembly. The anti-collision assembly extends in the first direction, and a cavity is formed in the anti-collision assembly. The anti-collision assembly is located on at least one side of the box body assembly in the second direction. The first direction intersects with the second direction, and the first direction is the front-back direction of the battery device. At least part of the anti-collision assembly is composed of continuous fibers and a base body, the base body is attached to the continuous fibers, and the extending direction of the continuous fibers is the first direction. According to the battery device provided by the embodiment of the invention, the impact resistance of the box body assembly is improved, a certain buffer space is also favorably provided for the anti-collision assembly, and the impact resistance of the battery device is further improved.

Description

Technical Field

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

[0002] This section is intended to provide a background or context for the embodiments of the present application. No description herein is admitted to be prior art by virtue of its inclusion in this section.

[0003] In new energy vehicles equipped with battery devices, the battery devices can be used to provide power in whole or in part. The box assembly is an important part of the battery device, which plays the role of accommodating and protecting the internal battery monomer assembly. In the development of battery devices, in addition to improving the performance of the battery device, how to improve the impact resistance of the battery device is also an issue that cannot be ignored. Utility Model Content

[0004] In view of this, the embodiments of the present application hope to provide a battery device, an energy storage device and an electrical device, which can improve the impact resistance of the battery device.

[0005] To this end, a first aspect of an embodiment of the present application provides a battery device, including:

[0006] Box components;

[0007] A battery cell assembly, wherein the battery cell assembly is disposed in the box assembly;

[0008] An anti-collision component, the anti-collision component is arranged outside the box component, and at least part of the anti-collision component protrudes from the outer surface of the box component, the anti-collision component extends along a first direction, and the interior of the anti-collision component has a cavity; the anti-collision component is located on at least one side of the box component along a second direction; wherein the first direction intersects with the second direction, and the first direction is the front-rear direction of the battery device;

[0009] At least part of the anti-collision component is constructed of continuous fibers and a matrix, wherein the matrix is ​​attached to the continuous fibers, and an extending direction of the continuous fibers is the first direction.

[0010] The battery device provided in the embodiment of the present application includes a box assembly, a battery cell assembly and an anti-collision assembly. The battery cell assembly is arranged in the accommodating cavity of the box assembly, and the box assembly protects the battery cell assembly. In addition, by arranging the anti-collision assembly on the outer side of at least one side of the box assembly along the second direction, and at least part of the anti-collision assembly protrudes from the outer surface of the box assembly, that is, in the state of being hit from the side, it first contacts the anti-collision assembly, and the anti-collision assembly can absorb the impact energy, thereby playing a certain protective role for the box assembly, improving the impact resistance of the box assembly, and further improving the reliability of the battery device. In addition, by arranging a cavity inside the anti-collision assembly, while reducing the weight of the anti-collision assembly, it is also beneficial to provide a certain buffer space for the anti-collision assembly, further improving the impact resistance of the battery device.

[0011] In addition, by setting at least part of the anti-collision component to be composed of continuous fibers and a matrix, the matrix is ​​attached to the continuous fibers, that is, the anti-collision component can be a composite plate, which has the characteristics of low density, light weight, and high strength, that is, it is beneficial to reduce the weight of the anti-collision component, thereby reducing the weight of the battery device, while improving the structural strength of the anti-collision component. In addition, by setting the extension direction of the continuous fibers to the first direction, that is, the front-rear direction of the battery device, the impact resistance of the anti-collision component is further improved.

[0012] In some embodiments, the box assembly is provided with a groove, and at least a portion of the anti-collision assembly is disposed in the groove.

[0013] In this embodiment, by disposing at least part of the anti-collision component in the groove, the connection reliability between the anti-collision component and the box component is improved, so that the anti-collision component can withstand more impact energy, further improving the impact resistance of the box component.

[0014] In some embodiments, the box assembly includes a box body and a support member, wherein the support member is connected to the box body; and the support member is provided with the groove.

[0015] In this embodiment, by providing the support member with a groove and disposing at least a portion of the anti-collision component in the groove, on the one hand, the assembly of the anti-collision component is facilitated; on the other hand, by the cooperation between the support member and the anti-collision component, that is, when subjected to a side collision, the support member and the anti-collision component are contacted first, and the support member and the anti-collision component can absorb the impact energy at the same time, thereby further improving the impact resistance of the box assembly.

[0016] In some embodiments, the support member and the box body jointly define the groove.

[0017] That is to say, the support member and the box body jointly define a groove, and the anti-collision assembly is arranged between the support member and the box body.

[0018] In some embodiments, the support member and the box body are an integral structure formed by extrusion.

[0019] It is beneficial to reduce parts and improve assembly efficiency. It can make full use of the space on the support member for assembling the anti-collision component, and the support member and the anti-collision component cooperate with each other, that is, when subjected to a side collision, they first contact the support member and the anti-collision component, and the support member and the anti-collision component can absorb the impact energy at the same time, thereby further improving the impact resistance of the box assembly.

[0020] In some embodiments, the anti-collision component includes a first anti-collision member, the groove is provided on a side of the support member away from the box body, and the first anti-collision member is provided in the groove on a side of the support member away from the box body.

[0021] The anti-collision component is provided with a first anti-collision piece, and the first anti-collision piece is arranged in a groove on the side of the support member away from the box body. When subjected to a side collision, the first anti-collision piece located on the outermost side absorbs the impact energy, thereby improving the impact resistance of the box assembly.

[0022] In some embodiments, the anti-collision component includes a second anti-collision member, the top of the support member is provided with the groove, and the second anti-collision member is arranged in the groove at the top of the support member.

[0023] In this embodiment, the anti-collision component is provided with a second anti-collision piece, and the second anti-collision piece is provided in a groove at the top of the support member, which is beneficial to improving the anti-collision range of the box assembly in the height direction, thereby improving the impact resistance of the box assembly.

[0024] In some embodiments, the anti-collision assembly includes a third anti-collision member, and the third anti-collision member is connected to the box body.

[0025] In this embodiment, by connecting the third anti-collision member to the box body, that is, the third anti-collision member can also be set in the area of ​​the box assembly where no support member is set, which is beneficial to improving the anti-collision range of the box assembly, thereby improving the impact resistance of the box assembly.

[0026] In some embodiments, the anti-collision assembly includes an anti-collision piece and a reinforcing rib, the anti-collision piece has the cavity inside, and the reinforcing rib is arranged in the cavity and divides the cavity into a plurality of sub-cavities.

[0027] In this embodiment, the anti-collision component is provided with an anti-collision piece and a reinforcing rib, and the reinforcing rib is provided in the cavity. The reinforcing rib can support the anti-collision piece, thereby improving the structural strength of the anti-collision piece and further improving the impact resistance of the battery device.

[0028] In some embodiments, the anti-collision component includes an anti-collision component and a buffer component. The anti-collision component has the cavity inside, and the buffer component is disposed in the cavity.

[0029] In this embodiment, by arranging a buffer member in the cavity of the anti-collision member, the buffer space of the anti-collision member is not affected and the anti-collision member is also helpful to absorb the impact energy, thereby further improving the impact resistance of the battery device.

[0030] In some embodiments, the anti-collision assembly includes an anti-collision component and a heat insulation component, the anti-collision component has the cavity inside, and the heat insulation component is arranged in the cavity.

[0031] In this embodiment, by arranging a heat insulating member in the cavity of the anti-collision member, the impact resistance of the box assembly is improved while the heat insulating performance of the anti-collision assembly is also improved.

[0032] In some embodiments, the anti-collision component is connected to the box component by adhesive; and / or the anti-collision component is fastened to the box component.

[0033] This connection method is simple, reliable and low-cost.

[0034] In some embodiments, the anti-collision component is a non-metallic part.

[0035] In this embodiment, by configuring the anti-collision component as a non-metallic part, it is helpful to reduce the weight of the anti-collision component, thereby reducing the weight of the battery device.

[0036] In some embodiments, the anti-collision assembly includes a plurality of anti-collision parts, and each of the anti-collision parts is distributed along the height direction of the box assembly.

[0037] In this embodiment, the anti-collision component is configured to include a plurality of anti-collision parts, and the anti-collision parts are distributed along the height direction of the box component. Thus, the anti-collision component can protect the box component in the height direction.

[0038] In some embodiments, the anti-collision component includes an anti-collision piece and a biaxial cloth, the interior of the anti-collision piece has the cavity, and the biaxial cloth is arranged on the surface of the anti-collision piece.

[0039] In this embodiment, by arranging the biaxial cloth on the surface of the anti-collision component, the structural strength of the anti-collision component in the direction perpendicular to the first direction is improved.

[0040] In some embodiments, the anti-collision component includes an anti-collision piece and a triaxial cloth, the anti-collision piece has the cavity inside, and the triaxial cloth is arranged on the surface of the anti-collision piece.

[0041] In this embodiment, the structural strength of the anti-collision component is improved by arranging a triaxial cloth on the surface of the anti-collision component.

[0042] A second aspect of an embodiment of the present application provides an energy storage device, comprising a plurality of the battery devices described above, wherein the battery devices are used to store or provide electrical energy.

[0043] The battery device of the energy storage device provided in the embodiment of the present application includes a box assembly, a battery cell assembly and an anti-collision assembly. The battery cell assembly is arranged in the accommodating cavity of the box assembly, and the box assembly protects the battery cell assembly. In addition, by arranging the anti-collision assembly on the outer side of at least one side of the box assembly along the second direction, and at least part of the anti-collision assembly protrudes from the outer surface of the box assembly, that is, in the state of being hit from the side, it first contacts with the anti-collision assembly, and the anti-collision assembly can absorb the impact energy, thereby playing a certain protective role for the box assembly, improving the impact resistance of the box assembly, and further improving the reliability of the battery device. In addition, by arranging a cavity inside the anti-collision assembly, while reducing the weight of the anti-collision assembly, it is also beneficial to provide a certain buffer space for the anti-collision assembly, further improving the impact resistance of the battery device.

[0044] In addition, by setting the anti-collision component to include continuous fibers and a matrix, the matrix is ​​attached to the continuous fibers, that is, the anti-collision component can be a composite plate, which has the characteristics of low density, light weight, and high strength, that is, it is beneficial to reduce the weight of the anti-collision component, thereby reducing the weight of the battery device, while improving the structural strength of the anti-collision component. In addition, by setting the extension direction of the continuous fibers to the first direction, that is, the front-rear direction of the battery device, the impact resistance of the anti-collision component is further improved.

[0045] A third aspect of an embodiment of the present application provides an electrical device, comprising the battery device described above or the energy storage device described above, wherein the battery device is used to store or provide electrical energy.

[0046] The battery device of the electric device provided in the embodiment of the present application includes a box assembly, a battery cell assembly and an anti-collision assembly. The battery cell assembly is arranged in the accommodating cavity of the box assembly, and the box assembly protects the battery cell assembly. In addition, by arranging the anti-collision assembly on the outer side of at least one side of the box assembly along the second direction, and at least part of the anti-collision assembly protrudes from the outer surface of the box assembly, that is, in the state of being hit from the side, it first contacts with the anti-collision assembly, and the anti-collision assembly can absorb the impact energy, thereby playing a certain protective role for the box assembly, improving the impact resistance of the box assembly, and further improving the reliability of the battery device. In addition, by arranging a cavity inside the anti-collision assembly, while reducing the weight of the anti-collision assembly, it is also beneficial to provide a certain buffer space for the anti-collision assembly, further improving the impact resistance of the battery device.

[0047] In addition, by setting the anti-collision component to include continuous fibers and a matrix, the matrix is ​​attached to the continuous fibers, that is, the anti-collision component can be a composite plate, which has the characteristics of low density, light weight, and high strength, that is, it is beneficial to reduce the weight of the anti-collision component, thereby reducing the weight of the battery device, while improving the structural strength of the anti-collision component. In addition, by setting the extension direction of the continuous fibers to the first direction, that is, the front-rear direction of the battery device, the impact resistance of the anti-collision component is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 A schematic diagram of the structure of a vehicle provided in one embodiment of the present application;

[0049] Figure 2 The schematic diagram of the structure of the box assembly provided in one embodiment of the present application omits the top cover;

[0050] Figure 3 for Figure 2 A top view of

[0051] Figure 4 for Figure 3 Sectional view in the AA direction;

[0052] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0053] Description of Reference Numerals

[0054] 20. Box assembly; 21. Box body; 211. Second box; 22. Support member; 23. Groove; 30. Anti-collision assembly; 31. Cavity; 32. First anti-collision member; 33. Second anti-collision member; 34. Third anti-collision member; 35. Reinforcement rib; 36. Buffer member; 100. Battery device; 200. Controller; 300. Motor; 1000. Vehicle. DETAILED DESCRIPTION

[0055] Unless otherwise specified, all embodiments and optional embodiments of the present application can be combined with each other to form a new technical solution.

[0056] Unless otherwise specified, all technical features and optional technical features of this application can be combined with each other to form a new technical solution.

[0057] In the description of the present application, it should be noted that, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inside", "outside", etc., indicating the orientation or positional relationship, are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply 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 present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. "Vertical" is not strictly vertical, but is within the allowable error range. "Parallel" is not strictly parallel, but is within the allowable error range.

[0058] 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.

[0059] With the development of clean energy, more and more devices use electric energy as driving energy, and then power batteries that can store more electric energy and can be charged and discharged repeatedly are developing rapidly, such as lithium-ion batteries. Among them, power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as aerospace and other fields.

[0060] An embodiment of the present application provides an electrical device, including a battery device according to any embodiment of the present application or an energy storage device according to any embodiment of the present application, wherein the battery device is used to store or provide electrical energy.

[0061] The electrical device may be a vehicle, a mobile phone, a portable device, a laptop computer, a ship, a spacecraft, an electric toy, an electric tool, and the like. The vehicle may be a fuel vehicle, a gas vehicle, or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle, and the like; the spacecraft includes an airplane, a rocket, a space shuttle, and a spacecraft, and the like; the electric toy includes a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, and an electric airplane toy, and the like; the electric tool includes a metal cutting electric tool, a grinding electric tool, an assembly electric tool, and an electric tool for railways, such as an electric drill, an electric grinder, an electric wrench, an electric screwdriver, an electric hammer, an impact drill, a concrete vibrator, and an electric planer, and the like. The embodiments of the present application do not impose any special restrictions on the above-mentioned electrical devices.

[0062] For the convenience of description, the following embodiments are described by taking the electric device as a vehicle as an example.

[0063] Please refer to Figure 1 , a controller 200, a motor 300 and a battery device 100 may be arranged inside the vehicle 1000, and the controller 200 is used to control the battery device 100 to power the motor 300. For example, the battery device 100 may be arranged at the bottom, front or rear of the vehicle 1000. The battery device 100 may be used to power the vehicle 1000. For example, the battery device 100 may be used as an operating power source for the vehicle 1000, for the circuit system of the vehicle 1000, for example, for the working power requirements during the start-up, navigation and operation of the vehicle 1000. In another embodiment of the present application, the battery device 100 may not only be used as an operating power source for the vehicle 1000, but also as a driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0064] An embodiment of the present application provides an energy storage device, including a plurality of battery devices 100 according to any embodiment of the present application, and the battery devices 100 are used to store or provide electrical energy.

[0065] The energy storage device can be used in energy storage power stations, wind power generation systems, solar power generation systems, mobile power systems or temporary power supply systems. The energy storage device can store electrical energy as needed and output electrical energy at an appropriate time. For example, the energy storage device can store electrical energy during low power consumption and provide electrical energy to relevant users or electrical equipment during peak power consumption. The energy storage system provided in the embodiment of the present application can be any power system that requires the use of an energy storage device.

[0066] In some embodiments, the energy storage device is an energy storage container or an energy storage cabinet.

[0067] See also Figure 2 , an embodiment of the present application provides a battery device 100, the battery device 100 includes a box assembly 20, a battery cell assembly and an anti-collision assembly 30. The battery cell assembly is arranged in the box assembly 20. The anti-collision assembly 30 is arranged outside the box assembly 20, and at least part of the anti-collision assembly 30 protrudes from the outer surface of the box assembly 20. The anti-collision assembly 30 extends along a first direction, and the interior of the anti-collision assembly 30 has a cavity 31. The anti-collision assembly 30 is located on at least one side of the box assembly 20 along a second direction. Among them, the first direction intersects with the second direction, and the first direction is the front-to-back direction of the battery device 100.

[0068] The battery device 100 (Battery Apparatus) mentioned in the embodiment 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 multiple battery cells, and the multiple battery cells are connected in series, parallel or mixed through a busbar component.

[0069] In the embodiment of the present application, the battery cell may be a secondary battery. A secondary battery refers to a battery cell that can be continuously used by activating active materials by charging after the battery cell is discharged.

[0070] The battery cell can be a lithium ion battery, a sodium ion battery, a sodium lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium sulfur battery, a magnesium ion battery, a nickel hydrogen battery, a nickel cadmium battery, a lead storage battery, etc., which is not limited in the embodiments of the present application.

[0071] A battery cell generally includes an electrode assembly. The electrode assembly includes a positive electrode, a negative electrode, and a separator, which is arranged between the negative electrode and the positive electrode. During the charge and discharge process of the battery cell, active ions (such as lithium ions) are embedded and released back and forth between the positive electrode and the negative electrode. The separator is arranged between the positive electrode and the negative electrode to prevent the positive and negative electrodes from short-circuiting, while allowing active ions to pass through.

[0072] The electrode assembly may be a wound structure, a laminated structure, or a mixed structure of a wound structure and a laminated structure.

[0073] In some embodiments, a battery cell assembly is generally formed by arranging a plurality of battery cells.

[0074] As an example, the battery cell assembly may be a battery module, which is formed by arranging and fixing a plurality of battery cells to form an independent module. As an example, the battery module may be formed by bundling a plurality of battery cells by a cable tie.

[0075] In some embodiments, the battery device 100 may be a battery pack, which includes a case assembly 20 and one or more battery cell assemblies, wherein the battery cell assembly is accommodated in the case assembly 20 .

[0076] As an example, the battery cell assembly may be a battery module, and the battery cell assembly may be accommodated in the box assembly 20 by fixing the battery module in the box assembly 20 .

[0077] As an example, the battery cell assembly may also be accommodated in the case assembly 20 by directly fixing a plurality of battery cells to the case assembly 20 .

[0078] As an example, see Figure 2 The box assembly 20 may include a box body 21, and the box body 21 may include a first box body (not shown) and a second box body 211. The first box body and the second box body 211 are buckled together to form a closed accommodating cavity inside the box assembly 20 to accommodate the battery monomer assembly. The closed here means covered or closed, which can be sealed or unsealed. The first box body can be a top cover or a bottom plate.

[0079] As an example, the box assembly 20 may 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 accommodation cavity is formed inside the box assembly 20 to accommodate the battery monomer assembly.

[0080] In some embodiments, the box assembly 20 can be used as part of the chassis structure of the vehicle 1000. For example, part of the box assembly 20 can become at least a part of the floor of the vehicle 1000, or part of the box assembly 20 can become at least a part of the cross beam and longitudinal beam of the vehicle 1000.

[0081] See also Figure 3 The anti-collision component 30 extends along a first direction, and the first direction is a front-to-rear direction of the battery device 100 , that is, the anti-collision component 30 extends along the front-to-rear direction of the battery device 100 .

[0082] The anti-collision component 30 is located on at least one side of the box component 20 along the second direction. The anti-collision component 30 may be provided on one side of the box component 20 along the second direction, or on both sides of the box component 20 along the second direction.

[0083] Here, the first direction intersecting the second direction means that the first direction is not parallel to the second direction. Exemplarily, the first direction and the second direction are perpendicular to each other.

[0084] Exemplarily, the first direction is the front-to-back direction of the battery device 100, and the second direction is the left-to-right direction of the battery device 100. Figure 3 and Figure 4 As shown, the first direction is represented by X, the second direction is represented by Y, and the height direction of the battery device 100 is represented by Z.

[0085] See also Figure 3 and Figure 4 The anti-collision component 30 is arranged outside the box component 20, and at least a part of the anti-collision component 30 protrudes from the outer surface of the box component 20. The anti-collision component 30 may be entirely protruded from the outer surface of the box component 20, or a part of the anti-collision component 30 may be protruded from the outer surface of the box component 20. By arranging the anti-collision component 30 to at least partially protrude from the outer surface of the box component 20, when the box component 20 is hit, it can first contact the anti-collision component 30.

[0086] By arranging an anti-collision component 30 at one end of the box component 20, and at least part of the anti-collision component 30 protruding from the outer surface of the box component 20, when the box component 20 is impacted, it can first contact the anti-collision component 30, thereby playing a certain protective role for the box component 20 and improving the impact resistance of the box component 20.

[0087] See also Figure 5 The anti-collision component 30 has a cavity 31 inside. Exemplarily, the extension direction of the cavity 31 is the same as the extension direction of the anti-collision component 30, that is, the cavity 31 also extends along the first direction.

[0088] Here, by providing the cavity 31 inside the anti-collision component 30 , it is beneficial to reduce the weight of the anti-collision component 30 and also beneficial to provide a certain buffer space for the anti-collision component 30 .

[0089] In this way, when the anti-collision component 30 is impacted, the cavity 31 of the anti-collision component 30 can absorb the impact energy, thereby playing a better buffering role for the box component 20 and improving the impact resistance of the box component 20.

[0090] The battery device 100 provided in the embodiment of the present application includes a box assembly 20, a battery cell assembly and an anti-collision assembly 30. The battery cell assembly is arranged in the accommodating cavity of the box assembly 20, and the box assembly 20 plays a protective role on the battery cell assembly. In addition, by arranging the anti-collision assembly 30 on the outer side of at least one side of the box assembly 20 along the second direction, and at least part of the anti-collision assembly 30 protrudes from the outer surface of the box assembly 20, that is, in the state of being hit from the side, it first contacts with the anti-collision assembly 30, and the anti-collision assembly 30 can absorb the impact energy, thereby playing a certain protective role on the box assembly 20, improving the impact resistance of the box assembly 20, and further improving the reliability of the battery device 100. In addition, by arranging the cavity 31 inside the anti-collision assembly 30, while reducing the weight of the anti-collision assembly 30, it is also beneficial to provide a certain buffer space for the anti-collision assembly 30, further improving the impact resistance of the battery device 100.

[0091] In some embodiments, see Figures 4 to 5 The box assembly 20 is provided with a groove 23 , and at least part of the anti-collision assembly 30 is arranged in the groove 23 .

[0092] At least part of the anti-collision component 30 is arranged in the groove 23 means that part of the anti-collision component 30 can be arranged in the groove 23 , or all of the anti-collision component 30 can be arranged in the groove 23 .

[0093] In this embodiment, by disposing at least a portion of the anti-collision component 30 in the groove 23, the connection reliability between the anti-collision component 30 and the box component 20 is improved, so that the anti-collision component 30 can withstand more impact energy, further improving the impact resistance of the box component 20.

[0094] In some embodiments, see Figures 4 to 5 The box assembly 20 includes a box body 21 and a support member 22, and the support member 22 is connected to the box body 21. The support member 22 is provided with a groove 23.

[0095] That is to say, the box body 21 is the main structure of the box assembly 20 and plays a major supporting and containing role.

[0096] It should be noted that the specific structural form of the support member 22 is not limited here.

[0097] Here, the support member 22 protrudes from the outer surface of the box body 21. On the one hand, the support member 22 can be used to support the anti-collision component 30; on the other hand, when subjected to a side collision, the support member 22 is contacted first, and the support member 22 can absorb the impact energy, thereby playing a certain protective role for the box body component 20, improving the impact resistance of the box body component 20, and further improving the reliability of the battery device 100.

[0098] In this embodiment, by providing the support member 22 with a groove 23 and disposing at least a portion of the anti-collision assembly 30 in the groove 23, on the one hand, the assembly of the anti-collision assembly 30 is facilitated; on the other hand, the support member 22 and the anti-collision assembly 30 cooperate with each other, that is, when subjected to a side collision, they first contact the support member 22 and the anti-collision assembly 30, and the support member 22 and the anti-collision assembly 30 can absorb the impact energy at the same time, thereby further improving the impact resistance of the box assembly 20.

[0099] In some embodiments, see Figures 4 to 5 The support member 22 and the box body 21 together define a groove 23 .

[0100] That is, the support member 22 and the box body 21 jointly define a groove 23 , and the anti-collision assembly 30 is disposed between the support member 22 and the box body 21 .

[0101] In some embodiments, see Figure 5 The support member 22 and the box body 21 are an integral structure formed by extrusion.

[0102] Exemplarily, the box assembly 20 is an extruded profile box.

[0103] Here, the groove 23 can be formed while the support member 22 and the box body 21 are an integral structure formed by extrusion, which is conducive to fully utilizing the space where the support member 22 is set in the box assembly 20.

[0104] In this embodiment, by configuring the support member 22 and the box body 21 as an integral structure formed by extrusion, it is beneficial to reduce parts and improve assembly efficiency. The space on the support member 22 can be fully utilized for assembling the anti-collision component 30, and the support member 22 and the anti-collision component 30 cooperate with each other, that is, when subjected to a side collision, they first contact the support member 22 and the anti-collision component 30, and the support member 22 and the anti-collision component 30 can absorb the impact energy at the same time, thereby further improving the impact resistance of the box body component 20.

[0105] It should be noted that the specific structural form of the anti-collision component 30 is not limited here.

[0106] In some embodiments, see Figure 5 The anti-collision assembly 30 includes a plurality of anti-collision parts, and each anti-collision part is distributed along the height direction of the box assembly 20 .

[0107] The multiple mentioned in the embodiments of the present application refers to a number of two or more.

[0108] In this embodiment, the anti-collision component 30 is configured to include a plurality of anti-collision parts, and the anti-collision parts are distributed along the height direction of the box component 20 . Thus, the anti-collision component 30 can protect the box component 20 in the height direction.

[0109] In some embodiments, see Figures 4 to 5 The anti-collision component 30 includes a first anti-collision member 32 . A groove 23 is provided on a side of the support member 22 away from the box body 21 . The first anti-collision member 32 is arranged in the groove 23 on the side of the support member 22 away from the box body 21 .

[0110] Here, the first anti-collision member 32 is disposed in the groove 23 on the side of the support member 22 away from the box body 21 , that is, the first anti-collision member 32 is disposed on the outermost side of the box assembly 20 .

[0111] Exemplarily, the first anti-collision member 32 is disposed at the bottom of the box body 21 .

[0112] In this embodiment, the anti-collision component 30 is provided with a first anti-collision part 32, and the first anti-collision part 32 is arranged in a groove 23 on the side of the support part 22 away from the box body 21. When subjected to a side collision, the first anti-collision part 32 located on the outermost side absorbs the impact energy, thereby improving the impact resistance of the box assembly 20.

[0113] In some embodiments, see Figures 4 to 5The anti-collision component 30 includes a second anti-collision member 33 . A groove 23 is provided at the top of the support member 22 . The second anti-collision member 33 is arranged in the groove 23 at the top of the support member 22 .

[0114] Here, the second anti-collision member 33 is disposed in the groove 23 at the top of the support member 22 , that is, the first anti-collision member 32 is disposed at the topmost side of the support member 22 .

[0115] In this embodiment, the anti-collision component 30 is configured with a second anti-collision member 33, and the second anti-collision member 33 is configured in a groove 23 at the top of the support member 22, which is beneficial to improving the anti-collision range of the box component 20 in the height direction, thereby improving the impact resistance of the box component 20.

[0116] In some embodiments, please refer to Figures 4 to 5 The anti-collision assembly 30 includes a third anti-collision member 34 , and the third anti-collision member 34 is connected to the box body 21 .

[0117] Exemplarily, the third anti-collision member 34 is located above the support member 22 , which is beneficial to improving the anti-collision range of the box assembly 20 in the height direction.

[0118] In this embodiment, by connecting the third anti-collision member 34 to the box body 21, that is, the third anti-collision member 34 can also be set in the area of ​​the box assembly 20 where the support member 22 is not set, it is beneficial to improve the anti-collision range of the box assembly 20, thereby improving the impact resistance of the box assembly 20.

[0119] In some embodiments, see Figures 4 to 5 The anti-collision component 30 includes an anti-collision member and a reinforcing rib 35. The anti-collision member has a cavity 31 inside. The reinforcing rib 35 is arranged in the cavity 31 and divides the cavity 31 into a plurality of sub-cavities.

[0120] Here, the specific number of the reinforcing ribs 35 is not limited, and can be one or more.

[0121] In this embodiment, the anti-collision component 30 is provided with an anti-collision piece and a reinforcing rib 35, and the reinforcing rib 35 is provided in the cavity 31. The reinforcing rib 35 can support the anti-collision piece, thereby improving the structural strength of the anti-collision piece and further improving the impact resistance of the battery device 100.

[0122] In some embodiments, see Figures 4 to 5 The anti-collision component 30 includes an anti-collision component and a buffer component 36 . The anti-collision component has a cavity 31 inside, and the buffer component 36 is arranged in the cavity 31 .

[0123] Here, the specific type of the buffer 36 is not limited, as long as it can play a buffering role.

[0124] Exemplarily, the buffer member 36 is, for example, foam.

[0125] In this embodiment, by disposing a buffer member 36 in the cavity 31 of the anti-collision member, the buffer space of the anti-collision assembly 30 is not affected and the anti-collision member is also helpful to absorb the impact energy, thereby further improving the impact resistance of the battery device 100.

[0126] In some embodiments, see Figures 4 to 5 The anti-collision component 30 includes an anti-collision component and a heat insulation component (not shown in the figure). The interior of the anti-collision component has a cavity 31, and the heat insulation component is arranged in the cavity 31.

[0127] Here, the specific type of the heat insulating member is not limited. The thermal conductivity of the heat insulating member is smaller than the thermal conductivity of the anti-collision member, which is beneficial to improving the thermal insulation performance of the anti-collision assembly 30 .

[0128] In this embodiment, by arranging a heat insulating member in the cavity 31 of the anti-collision member, the impact resistance of the box assembly 20 is improved, and the heat insulating performance of the anti-collision assembly 30 is also improved.

[0129] It should be noted that the connection method between the anti-collision component 30 and the box component 20 is not limited here.

[0130] In some embodiments, see Figure 5 The anti-collision component 30 is connected to the box component 20 by adhesive.

[0131] Here, an adhesive layer may be provided between the anti-collision component 30 and the box component 20 to achieve an adhesive connection between the anti-collision component 30 and the box component 20. The adhesive layer may be an adhesive layer formed by applying glue between the anti-collision component 30 and the box component 20 and solidifying the glue, or may be solid glue, etc.

[0132] Illustratively, the adhesive layer may be at least one of polyurethane, epoxy, and pressure-sensitive adhesive.

[0133] This connection method is simple and has low cost.

[0134] In some embodiments, see Figure 5 The anti-collision component 30 is firmly connected to the box component 20 .

[0135] Exemplarily, the anti-collision assembly 30 and the box assembly 20 are connected by riveting, bolting or screwing.

[0136] This connection method is simple, reliable and low-cost.

[0137] In some embodiments, the anti-collision component 30 is a non-metallic component.

[0138] It can be understood that the sealing of non-metallic parts is smaller than that of metal parts. Therefore, under the size of the box body 21, the non-metallic parts are lighter, which is beneficial to reduce the weight.

[0139] Exemplarily, the non-metallic part may be an injection molded part or a composite part.

[0140] In this embodiment, by configuring the anti-collision component 30 as a non-metallic component, it is helpful to reduce the weight of the anti-collision component 30 , thereby reducing the weight of the battery device 100 .

[0141] In some embodiments, at least a portion of the anti-collision component 30 is constructed of continuous fibers and a matrix, the matrix is ​​attached to the continuous fibers, and the extending direction of the continuous fibers is a first direction.

[0142] Here, the anti-collision component 30 may be entirely constructed of continuous fibers and a matrix, or partially constructed of continuous fibers and a matrix, for example, the anti-collision part is constructed of continuous fibers and a matrix.

[0143] Specifically, the continuous fiber is a flexible long strip structure with a certain width and thickness, but the length can be extended and bent according to actual conditions.

[0144] Exemplarily, the continuous fibers are, for example, continuous glass fibers, and have insulating properties.

[0145] Here, the matrix is, for example, a thermoplastic resin, which has the properties of softening when heated and hardening when cooled, and does not react chemically, and can maintain this property no matter how many times the heating and cooling are repeated. Thermoplastic resins have good toughness, large damage tolerance, good dielectric constant, unlimited storage period, no need for low-temperature storage, and no need for large-scale special equipment such as autoclaves for molding. In particular, they have good recyclability, recoverability, reusability, and environmental friendliness, which adapts to the current development direction of environmentally friendly materials.

[0146] Of course, in other embodiments, the matrix may also be a thermosetting resin.

[0147] In this embodiment, the anti-collision component 30 is configured to include continuous fibers and a matrix, and the matrix is ​​attached to the continuous fibers, that is, the anti-collision component 30 can be a composite plate, which has the characteristics of low density, light weight, and high strength. In other words, it is beneficial to reduce the weight of the anti-collision component 30, thereby reducing the weight of the battery device 100, while improving the structural strength of the anti-collision component 30. In addition, by setting the extension direction of the continuous fibers to the first direction, that is, the front-rear direction of the battery device 100, the impact resistance of the anti-collision component 30 is further improved.

[0148] In some embodiments, the anti-collision assembly 30 includes an anti-collision piece and a biaxial cloth. The interior of the anti-collision piece has a cavity 31 , and the biaxial cloth is disposed on the surface of the anti-collision piece.

[0149] Biaxial fabric is composed of two mutually perpendicular warp and weft yarns. The warp and weft yarns are interwoven into a mesh structure in the horizontal direction and parallel to each other in the vertical direction. Biaxial fabric has good elasticity and wrinkle resistance, and is also relatively soft and comfortable.

[0150] In this embodiment, by arranging a biaxial cloth on the surface of the anti-collision component, the structural strength of the anti-collision component 30 in a direction perpendicular to the first direction is improved.

[0151] In some embodiments, the anti-collision assembly 30 includes an anti-collision piece and a triaxial cloth. The interior of the anti-collision piece has a cavity 31 , and the triaxial cloth is disposed on the surface of the anti-collision piece.

[0152] Triaxial fabric is composed of three mutually perpendicular warp yarns, weft yarns and tension wires. Among them, the warp yarns, weft yarns and tension wires are interwoven into a mesh structure in the horizontal direction and parallel to each other in the vertical direction. Triaxial fabric has better strength and wear resistance, and is also relatively stiff and durable.

[0153] In this embodiment, the structural strength of the anti-collision component 30 is improved by arranging a triaxial cloth on the surface of the anti-collision component.

[0154] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. A battery device, characterized in that: include: Box components; A battery cell assembly, wherein the battery cell assembly is disposed in the box assembly; An anti-collision component, the anti-collision component is arranged outside the box component, and at least part of the anti-collision component protrudes from the outer surface of the box component, the anti-collision component extends along a first direction, and the interior of the anti-collision component has a cavity; the anti-collision component is located on at least one side of the box component along a second direction; wherein the first direction intersects with the second direction, and the first direction is the front-rear direction of the battery device; At least part of the anti-collision component is constructed of continuous fibers and a matrix, wherein the matrix is ​​attached to the continuous fibers, and an extending direction of the continuous fibers is the first direction.

2. The battery device according to claim 1, characterized in that: The box assembly is provided with a groove, and at least a portion of the anti-collision assembly is arranged in the groove.

3. The battery device according to claim 2, characterized in that: The box assembly includes a box body and a support member, and the support member is connected to the box body; The support member is provided with the groove; and / or, The support member and the box body jointly define the groove.

4. The battery device according to claim 3, characterized in that: The support member and the box body are an integral structure formed by extrusion.

5. The battery device according to claim 3, characterized in that: The anti-collision component includes a first anti-collision member, the groove is arranged on a side of the support member away from the box body, and the first anti-collision member is arranged in the groove on a side of the support member away from the box body.

6. The battery device according to claim 3, characterized in that: The anti-collision component includes a second anti-collision member, the top of the support member is provided with the groove, and the second anti-collision member is arranged in the groove at the top of the support member.

7. The battery device according to claim 3, characterized in that: The anti-collision component includes a third anti-collision member, and the third anti-collision member is connected to the box body.

8. The battery device according to any one of claims 1 to 7, characterized in that: The anti-collision component comprises an anti-collision piece and reinforcing ribs. The anti-collision piece has the cavity inside. The reinforcing ribs are arranged in the cavity and divide the cavity into a plurality of sub-cavities.

9. The battery device according to any one of claims 1 to 7, characterized in that: The anti-collision component comprises an anti-collision component and a buffer component. The anti-collision component has the cavity inside, and the buffer component is arranged in the cavity.

10. The battery device according to any one of claims 1 to 7, characterized in that: The anti-collision component comprises an anti-collision component and a heat insulating component. The interior of the anti-collision component has the cavity, and the heat insulating component is arranged in the cavity.

11. The battery device according to any one of claims 1 to 7, characterized in that: The anti-collision component is connected to the box component by adhesive; and / or the anti-collision component is connected to the box component by fastening.

12. The battery device according to claim 1, characterized in that: The anti-collision component is a non-metallic part; and / or, The anti-collision component includes a plurality of anti-collision parts, and each of the anti-collision parts is distributed along the height direction of the box component.

13. The battery device according to claim 1, characterized in that: The anti-collision component comprises an anti-collision piece and a biaxial cloth, the interior of the anti-collision piece has the cavity, and the biaxial cloth is arranged on the surface of the anti-collision piece; and / or, The anti-collision component comprises an anti-collision piece and a triaxial cloth. The interior of the anti-collision piece has the cavity, and the triaxial cloth is arranged on the surface of the anti-collision piece.

14. An energy storage device, characterized in that: The invention comprises a plurality of battery devices according to any one of claims 1 to 13, wherein the battery devices are used to store or provide electrical energy.

15. An electrical device, characterized in that: The invention comprises a battery device according to any one of claims 1 to 13 or an energy storage device according to claim 14, wherein the battery device is used to store or provide electrical energy.

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