Box body, battery device and electric equipment

Abstract

The utility model relates to the technical field of batteries, and particularly discloses a box body, a battery device and electric equipment, the battery device comprises the box body and a battery monomer, the box body comprises a bottom plate and a frame arranged on the peripheral side of the bottom plate, and the frame and the bottom plate are enclosed to form a mounting cavity; the battery monomers are arranged in the mounting cavities; the surface, deviating from the mounting cavity, of at least one of the two opposite side edges of the frame is connected with a protection assembly, the protection assembly forms a groove body structure, and a buffering reinforcing piece is arranged in the groove body structure. The battery device provided by the utility model can improve the structural strength and the side impact resistance.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery technology field especially relates to a box, battery device and electric equipment. BACKGROUND

[0002] The box of the battery pack serves as the structural main body of the whole pack, provides the containing space for the parts in the battery pack, is the mounting carrier of all parts of the whole pack, and bears the mechanical protection function.

[0003] In the related art, the structural strength and the side collision energy absorption capacity of the frame of the box are weak, and the mechanical strength requirements such as vibration, impact, extrusion and collision of the battery pack cannot be met. UTILITY MODEL CONTENT

[0004] The utility model discloses a battery device which aims at solving the problem of low structural strength and low side collision energy absorption capacity of the frame of the box.

[0005] To achieve the above-mentioned purpose, the battery device provided by the utility model comprises a box and a battery monomer, the box comprises a bottom plate and a frame arranged on the side of the bottom plate, the frame and the bottom plate form a mounting cavity, and the battery monomer is arranged in the mounting cavity.

[0006] At least one side of the opposite two sides of the frame is connected with a protection assembly, the protection assembly forms a groove structure, and a buffer reinforcing part is arranged in the groove structure.

[0007] In the battery device of the embodiment, the box can be an upper box structure or a lower box structure, and a mounting cavity with an opening is formed by the bottom plate and the frame, which is not limited here, and the battery monomer is arranged in the mounting cavity. Here, the frame is annular, and at least one of the opposite two sides of the frame deviates from the surface of the mounting cavity, which means that the outer surface of one side of the frame or the outer surfaces of the two sides of the frame deviate from the surface of the mounting cavity. The protection assembly is arranged on the outer surface of at least one side of the frame, and the protection assembly forms a groove structure, which can receive the impact force when the battery device is impacted or bumped from the side and play a certain buffering and protection role through the groove space. Meanwhile, a buffer reinforcing part is arranged in the groove, which is an entity structure with a certain structural strength and a certain deformation capacity to play a buffering role, which can further improve the structural strength of the frame and the side collision energy absorption capacity and improve the protection of the battery device.

[0008] In an embodiment of the utility model, the material of the buffer reinforcing part is a colloid.

[0009] The solidified colloid structure can have good structural strength and a certain buffering capacity, effectively improving the ability of the frame to resist external force.

[0010] In an embodiment of the present application, the colloid is a two-component polyurethane structural adhesive.

[0011] The colloid of this type can be quickly cured, improving processing efficiency.

[0012] In an embodiment of the present application, the viscosity of the colloid is greater than or equal to 2000 cps and less than or equal to 10000 cps.

[0013] The colloid with this viscosity range can have better bonding strength with the protective component, thereby improving the overall structural strength.

[0014] In an embodiment of the present application, the material of the buffer reinforcement is a foamed material.

[0015] The foamed material has good shock absorption performance and a certain strength, effectively improving the energy absorption capacity of the frame side impact.

[0016] In an embodiment of the present application, the foamed material is rigid polyurethane foam plastic.

[0017] This type of foamed material has high structural strength and low material cost, further improving the overall structural strength.

[0018] In an embodiment of the present application, the protective component includes a protective piece and a reinforcing rib, the protective piece is formed by extending the outer surface of at least one side of the frame away from the center of the box, and forms the groove structure;

[0019] The reinforcing rib is arranged in the groove structure and divides the groove structure into at least two filling grooves, and each filling groove is provided with the buffer reinforcement.

[0020] The protective component of this structure can improve the overall structural strength by the arrangement of the reinforcing rib, and divide the groove structure into at least two filling grooves, which can increase the connection area of the buffer reinforcement and the protective piece, and further improve the connection stability.

[0021] In an embodiment of the present application, the protective piece is arranged along the extension direction of the frame, the reinforcing rib is provided in plurality, and the filling groove is provided in plurality, and the materials of the buffer reinforcements filled in at least two of the plurality of filling grooves are different.

[0022] This structure can make the frame have good resistance to external force at each position in the extension direction, and different materials with different strengths and buffering capacities can be selected according to the specific stress, so that the protective component of the battery device is more targeted, and the strength is improved without increasing the weight too much.

[0023] In an embodiment of the utility model, the surface of the buffer reinforcing piece is flush with the plane where the opening of the filling groove is located.

[0024] On the basis of improving structural strength and energy absorption capacity, the overall installation space is not affected.

[0025] In an embodiment of the utility model, the groove depth of the filling groove is H, wherein H is greater than or equal to 5 mm and less than or equal to 50 mm.

[0026] The filling groove in the size range can accommodate sufficient buffer reinforcing pieces, improve side impact energy absorption effect and structural strength, and not excessively increase self-weight and volume.

[0027] In an embodiment of the utility model, the groove bottom of the filling groove is at least partially an inclined surface, and the inclined surface is gradually inclined towards the opening of the filling groove in the direction from the center of the box body to the edge.

[0028] The filling groove of the structure can well adapt to the installation space, and can also better transmit force to the buffer reinforcing piece when side impact occurs, thereby achieving good energy absorption effect.

[0029] In an embodiment of the utility model, at least two mounting portions are arranged at the end of the protection piece away from the frame, and the part of the protection piece between the adjacent two mounting portions is recessed to form an arc-shaped notch towards the frame.

[0030] The mounting portion is used for mounting and fixing the battery device, and the arrangement of the arc-shaped notch can further increase the buffer space of the battery device and improve the energy absorption effect of external force.

[0031] The utility model also provides a box, which comprises a bottom plate and a frame arranged on the periphery of the bottom plate, and the frame and the bottom plate form a mounting cavity.

[0032] At least one of the opposite two side edges of the frame is connected with a protection assembly on the surface away from the mounting cavity, the protection assembly forms a groove structure, and the groove structure is filled with a buffer reinforcing material.

[0033] In the scheme, the box can be an upper box structure or a lower box structure, and a mounting cavity with an opening is formed through the bottom plate and the frame, which is not limited herein. Here, the protection assembly is arranged on the outer surface of at least one side edge of the frame, and the protection assembly forms a groove structure, which can receive impact force when the battery device is subjected to side impact or collision and play a certain buffering and protection role through the space of the groove. Meanwhile, a buffer reinforcing piece is arranged in the groove, which is an entity structure with certain structural strength and deformation capacity and plays a buffering role, which can further improve the structural strength of the frame and the side impact energy absorption capacity and improve the protection of the battery device.

[0034] The utility model discloses still propose a kind of electric equipment, including the battery device as any described above;Or, including the box as described above.

[0035] The application subject protection of battery device. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the embodiment or prior art description will be simply introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the structure shown in these drawings without creative labor.

[0037] Figure 1 It is the structure diagram of electric equipment of the utility model;

[0038] Figure 2 It is partial explosion drawing of battery device of the utility model;

[0039] Figure 3 It is the structure diagram of one embodiment of box of the utility model;

[0040] Figure 4 It is Figure 3 Front view of the box shown in figure;

[0041] Figure 5 It is Figure 4 Sectional view of partial structure along A-A line in it;

[0042] Figure 6 It is Figure 5 Enlarged view of B in it;

[0043] Figure 7 It is Figure 3 Partial structure explosion drawing of the box shown in figure.

[0044] Explanation of reference numerals:

[0045] 100, battery device;10, box;11, first part;12, second part;121, bottom plate;122, frame;123, protection assembly;123a, groove structure;1231, protection piece;1232, reinforcing rib;1233, filling groove;12331, inclined surface;1234, mounting portion;1235, arc-shaped notch;124, buffer reinforcing piece;20, battery monomer;200, controller;300, motor.

[0046] The realization of the utility model, functional characteristics and advantages will be further explained with reference to the drawings combined with embodiments. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of protection of the present application.

[0048] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0049] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixing" and the like should be understood in a broad sense, for example, "fixing" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0050] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel schemes, for example, "A and / or B" includes A scheme, or B scheme, or A and B schemes that meet at the same time. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that those skilled in the art can realize it, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection required by the present application.

[0051] The battery device mentioned in the art can be divided into primary batteries and rechargeable batteries according to whether it can be charged. The common types of rechargeable batteries at present are: lead-acid batteries, nickel-hydrogen batteries and lithium-ion batteries. Lithium-ion batteries are currently widely used in pure electric vehicles and hybrid electric vehicles. The capacity of lithium-ion batteries used for such purposes is relatively low, but has a larger output, charging current and longer service life, but the cost is higher.

[0052] The battery device described in the embodiments of the present application refers to a rechargeable battery. In the following, the embodiments disclosed in the present application will be mainly described by taking a lithium-ion battery as an example. It should be understood that the embodiments disclosed in the present application are applicable to any other appropriate type of rechargeable battery. The battery device mentioned in the embodiments disclosed in the present application can be directly or indirectly applied to an appropriate device to supply power to the device.

[0053] The battery device mentioned in the embodiments disclosed in the present application refers to a single physical module including one or more battery monomers to provide a predetermined voltage and capacity, which can be a battery module or a battery pack. The battery monomer is the basic unit in the battery device, which can be used to make a battery module or a battery pack. The battery module is formed by connecting a certain number of battery monomers in series and / or parallel and placing them in a frame in order to protect the battery monomers from external impact, heat, vibration, etc. The battery pack generally includes a battery module, a battery management system, and a box containing the battery module and the battery management system, and the charging and discharging process of the battery module is monitored and managed through the battery management system.

[0054] The box of the battery pack serves as the main structure of the whole pack, provides a containing space for the parts in the battery pack, is the installation carrier of all parts of the whole pack, and bears the function of mechanical protection. When it is installed on a power consumption device, the box may be in contact with other external components and be squeezed, especially for the battery device used in vehicles. During the driving bumping process of the vehicle, the components in the vehicle close to the box will collide and squeeze the box, causing the battery box to deform and squeeze the battery modules in the battery box.

[0055] In the related art, the structural strength and side collision energy absorption capacity of the frame of the box are weak, and cannot meet the mechanical strength requirements such as vibration, impact, squeezing, and collision of the battery pack.

[0056] Based on the above background, the present application proposes a battery device, which improves the frame of the box in the battery device, sets a protection assembly on the outer surface of the frame, and sets a buffer reinforcement in the groove structure formed by the protection assembly, so as to strengthen the structural strength and buffer and absorb external impact force, thereby improving the ability of the frame to resist side impact.

[0057] The battery device disclosed in the embodiments of the present application can be used in power consumption devices using batteries as power sources or various energy storage systems using batteries as energy storage elements. The power consumption device can be, but is not limited to, a mobile phone, a tablet, a notebook computer, an electric toy, a power tool, an electric vehicle, an electric car, a ship, a spacecraft, etc. Among them, the electric toy can include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric plane toys, etc. The spacecraft can include airplanes, rockets, space shuttles, and spaceships, etc.

[0058] The following embodiments are described with reference to Figure 1 A vehicle is taken as an example to illustrate the use of the power device according to an embodiment of the present application.

[0059] Figure 1 The power device provided by some embodiments of the present application is a vehicle. The vehicle can be a fuel automobile, a gas automobile or a new energy automobile. The new energy automobile can be a pure electric automobile, a hybrid automobile or a range extended automobile, etc. The vehicle is internally provided with a battery device 100. The battery device 100 can be arranged at the bottom, the head or the tail of the vehicle. The battery device 100 can be used for power supply of the vehicle, for example, the battery device 100 can be used as the operating power source of the vehicle. The vehicle can further include a controller 200 and a motor 300. The controller 200 is used to control the battery device 100 to supply power to the motor 300, for example, to meet the power demand of the vehicle during starting, navigation and driving.

[0060] In some embodiments of the present application, the battery device 100 can not only be used as the operating power source of the vehicle, but also be used as the driving power source of the vehicle, to replace or partially replace the fuel or natural gas to provide driving power for the vehicle.

[0061] Reference is made to Figure 2 , Figure 2 An exploded view of the battery device 100 is provided for some embodiments of the present application. The battery device 100 includes a box body 10 and at least two battery monomers 20. The box body 10 is used to provide a containing space for the battery monomers 20. The box body 10 can adopt various structures. In some embodiments, the box body 10 can include a first part 11 and a second part 12. The first part 11 and the second part 12 are mutually covered to jointly define the containing space. The second part 12 can be a hollow structure with one end open. The first part 11 can be a plate structure, which is covered on the open side of the second part 12 to jointly define the containing space with the second part 12. The first part 11 and the second part 12 can also be hollow structures with one side open. The open side of the first part 11 is covered on the open side of the second part 12. Of course, the box body 10 formed by the first part 11 and the second part 12 can have various shapes, such as a cylinder, a cuboid, etc.

[0062] In the battery device 100, the battery cell 20 can be multiple, the multiple battery cells 20 can be connected in series or parallel or mixed connection to form a whole, and the mixed connection means that there are both series connection and parallel connection among the multiple battery cells 20. The battery device 100 can also include other structures, for example, it can also include a current collecting component for realizing the electrical connection between the multiple battery cells 20. The battery cell 20 includes a shell and an electrode assembly, the shell is a closed structure, forms an internal space required by the electrode assembly, and generally includes an end cover and a shell body, the shell body is formed with an accommodating cavity with an opening, the electrode assembly is installed in the accommodating cavity, and the end cover is covered on the opening to seal the accommodating cavity. The specific structure of the end cover and other functional components provided thereon can refer to the existing end cover structure, and will not be repeated here. Of course, the shell also has electrolyte and other components, which will not be repeated here.

[0063] The battery cell 20 can be a secondary battery or a primary battery, and can also be a lithium-sulfur battery, a sodium-ion battery or a magnesium-ion battery, etc. The battery cell 20 can be in the shape of a cylinder, a flat body, a cuboid or other shapes, etc.

[0064] The battery device of the application will be described below with specific embodiments:

[0065] Please refer to Figure 3 、 Figure 6 and Figure 7 In an embodiment of the present application, the battery device 100 includes a box body 10 and a battery cell, the box body 10 includes a bottom plate 121 and a frame 122 provided on the side of the bottom plate 121, the frame 122 and the bottom plate 121 form an installation cavity, and the battery cell is arranged in the installation cavity.

[0066] At least one of the opposite two side edges of the frame 122 is connected with a protection assembly 123 away from the surface of the installation cavity, the protection assembly 123 is formed with a groove structure 123a, and the groove structure 123a is provided with a buffer reinforcing piece 124.

[0067] In the embodiment, the battery device 100 also includes a battery module or a battery cell 20 arranged in the box body 10, and the battery module and the battery cell 20 can refer to the structures described above, which will not be repeated here.

[0068] The box 10 here can be a whole structure forming a closed space, or can be the first part 11 or the second part 12 as described above, the first part 11 being the upper box 10, and the second part 12 being the lower box 10, which is not limited here. Taking the lower box 10 structure of the second part 12 as an example, the box 10 includes a bottom plate 121 and a frame 122. The bottom plate 121 is used to support the battery module or battery monomer 20 and is generally arranged in a rectangular shape. The frame 122 is connected to the periphery of the bottom plate 121 and is used to limit and fix the periphery of the battery module or battery monomer 20. The frame 122 and the bottom plate 121 form an installation cavity with an opening for accommodating at least part of the structure of the battery monomer 20 or the battery module. The frame 122 is arranged in a ring shape and can be a one-piece structure or a split structure, for example, formed by four side edges connected in sequence, which is not limited here. The frame 122 and the bottom plate 121 can be integrally formed, for example, by an integral molding process, which has good structural stability; or they can be separately formed and then connected and assembled through a connecting structure.

[0069] The opposite two side edges of the frame 122 refer to the frame 122 being a rectangular ring shape, having four side edges connected in sequence, and the two opposite side edges being arranged in pairs, one of which is a pair of opposite side edges. At least one surface of one of the two opposite side edges facing away from the installation cavity refers to the outer surface of one of the two opposite side edges or the outer surfaces of both of the two opposite side edges, i.e., the surface facing the external space after the box 10 forms a closed space. At least one of the two outer surfaces of the two side edges is provided with a protection assembly 123, which can be the outer surface of one side edge or the outer surfaces of both side edges.

[0070] The protection assembly 123 refers to a structure that can protect the outside of the frame 122, and its specific structure is not limited, for example, the protection assembly 123 can be a frame structure, a plate structure or a block, etc., as long as it has a groove structure 123a, i.e., the protection assembly 123 is an entity structure that can form a groove structure 123a. The protection assembly 123 and the frame 122 can be detachably connected, fixedly connected, or integrally formed, and when integrally formed, they can be integrally formed by casting to effectively improve the structural strength. The groove structure 123a refers to a cavity structure with an opening, and the opening of the groove structure 123a can face the opening of the installation cavity or face away from the opening of the installation cavity, which is not limited here.

[0071] The buffer reinforcement 124 refers to an entity structure with certain structural strength and certain deformation capacity to play a buffering role. For example, the buffer reinforcement 124 can be rubber, artificial cartilage or high-strength plastic, which is not limited herein. The buffer reinforcement 124 is arranged in the groove structure 123a and can be mounted in a detachable connection manner, such as a buckle connection or an interference fit connection, or in a fixed connection manner, such as adhesion, which is not limited herein. The final form of the buffer reinforcement 124 is a solid state with certain structural strength, but the initial state of the buffer reinforcement 124 in the groove structure 123a is not limited to a solid state but can also be a liquid state. The buffer reinforcement 124 can be arranged towards the bottom plate 121 or away from the bottom plate 121. Of course, the buffer reinforcement 124 can also be arranged towards the direction away from the frame 122, so that the buffer reinforcement 124 can resist or deform in the direction perpendicular to the surface of the frame 122 after the protection assembly 123 receives the impact force, thereby absorbing the lateral impact force and effectively improving the ability of the frame 122 to resist external force.

[0072] In the battery device 100 of the embodiment, the box 10 can be an upper box 10 structure or a lower box 10 structure, and an installation cavity with an opening is formed by the bottom plate 121 and the frame 122, which is not limited herein. The protection assembly 123 is arranged on the outer surface of at least one side of the frame 122, and the protection assembly 123 is formed with a groove structure 123a. When the battery device 100 is subjected to a side impact or a collision, the protection assembly 123 can first receive the impact force and play a certain buffering and protection role through the space of the groove. Meanwhile, the buffer reinforcement 124 is arranged in the groove, which can further improve the structural strength of the frame 122 and the side collision energy absorption capacity and improve the protection of the battery device 100.

[0073] In an embodiment of the utility model, the material of buffer reinforcement 124 is colloid.

[0074] In this embodiment, the state of the colloid is not limited and can be liquid glue or solid glue. The material of the colloid is not limited, for example, polyurethane or acrylate. The buffer reinforcement 124 formed by solidification of the colloid can have good structural strength and certain buffering capacity, effectively improving the ability of the frame 122 to resist external force. Meanwhile, the colloid can be directly adhesively connected with the inner wall surface of the groove structure 123a, without the need for additional connection structure, further simplifying the processing and improving the processing efficiency and structural stability.

[0075] In an embodiment of the utility model, the colloid is a two-component polyurethane structural adhesive.

[0076] In this example, the two-component polyurethane structural adhesive (also known as PU adhesive) is an adhesive containing urethane groups (-NHCOO-) or isocyanate groups (-NCO) in the molecular chain, which is obtained by the reaction of isocyanate and a hydroxyl-containing compound such as polyester, polyether, castor oil or other polyols. This type of glue can be obtained in the prior art and will not be described here. This type of glue has good flexibility, excellent shock resistance, and has the characteristics of impact resistance, wear resistance, high adhesive strength, etc., which can further improve the resistance to side collision of the frame 122; and the glue can be quickly cured by chemical reaction, thereby reducing the waiting time and improving the processing efficiency.

[0077] In an embodiment of the present application, the viscosity of the glue ranges from greater than or equal to 2000 cps to less than or equal to 10000 cps.

[0078] As known, the viscosity of the glue can be divided into Newtonian and non-Newtonian types according to the flowability, in this example, the viscosity of the glue needs to be high, so it is biased towards Newtonian, the specific method for measuring the viscosity of the glue can be determined according to the specific type of glue, and the method for measuring the viscosity can be selected from the existing measurement methods, for example, oscillation or rotation, etc. will not be described here.

[0079] When the glue is a two-component polyurethane structural adhesive, it can be detected by a viscometer, such as a rotary viscometer or a tube viscometer, etc. The specific steps can refer to the existing standard measurement method.

[0080] The viscosity of the glue ranges from greater than or equal to 2000 cps to less than or equal to 10000 cps, for example, greater than or equal to 3000 cps, 4000 cps, 5000 cps, 6000 cps, 7000 cps, 8000 cps, etc. The glue with this viscosity range can have better bonding strength with the protective component 123, thereby improving the overall structural strength.

[0081] In an embodiment of the present application, the material of the buffer reinforcement 124 is a foamed material.

[0082] In this example, the foamed material is a microporous material with countless bubbles inside, and its type is not limited, for example, it can be open / closed cell foam material, it can be medium foaming or high foaming material, it can be rigid or semi-rigid foam plastic, etc. The material of the foamed material can be polyurethane or polystyrene, etc. which is not limited here. The foamed material has good shock absorption performance and certain strength, effectively improving the energy absorption capacity of the frame 122 in side collision.

[0083] In an embodiment of the present application, the foamed material is rigid polyurethane foam plastic.

[0084] In the example, the rigid polyurethane foam is referred to as rigid polyurethane foam, which is mostly closed-cell structure, has good thermal insulation effect, light weight, and large specific strength, so that the structural strength is high, and the overall structural strength is further improved. And the material can be foamed at room temperature, the forming process is simple, and the material cost can be reduced.

[0085] The buffer reinforcement 124 of the colloidal and foamed material can be filled or filled in the groove structure 123a through a liquid or semi-liquid state, has good fluidity, simplifies the process, and is more uniform and comprehensive in contact with the groove structure 123a, so that the connection strength with the inner wall of the groove structure 123a is higher, and the uniformity of the side crash performance of the frame 122 can also be improved.

[0086] Please combine Figures 4 to 7 In an embodiment of the utility model, the protection assembly 123 includes a protection piece 1231 and a reinforcing rib 1232, the protection piece 1231 is formed by the outer surface of the frame 122 extending away from the center of the box body 10 and forms a groove structure 123a;

[0087] The reinforcing rib 1232 is arranged in the groove structure 123a and divides the groove structure 123a into at least two filling grooves 1233, and each filling groove 1233 is provided with a buffer reinforcement 124.

[0088] In the example, the protection piece 1231 can be the same material as the frame 122 and is integrally formed with the frame 122 by casting process, and the box body 10 of the structure can effectively improve the connection strength and overall structural stability. The protection piece 1231 is arranged outwardly from the outer surface of the frame 122, of course, it also has a certain extension length in the height direction of the box body 10, so as to form the groove structure 123a. The groove structure 123a can be formed by the protection piece 1231, or can be formed by the protection piece 1231 and the outer surface of the frame 122. The reinforcing rib 1232 is arranged in a sheet or plate structure and is perpendicular to the bottom wall of the groove structure 123a, which effectively improves the structural strength of the protection piece 1231. The reinforcing rib 1232 is at least partially connected to the bottom wall of the groove structure 123a, for example, it can be connected to the bottom wall and the side wall of the groove structure 123a at the same time, which can further improve the structural strength.

[0089] The reinforcing rib 1232 divides the groove structure 123a into at least two filling grooves 1233, and the two filling grooves 1233 can be arranged in the extension direction of the frame 122 or perpendicular to the surface of the frame 122, which is not limited here.

[0090] The protection assembly 123 of the structure can improve the overall structural strength by arranging the reinforcing ribs 1232, and the at least two filling grooves 1233 can increase the connecting area of the buffer reinforcing member 124 and the protection member 1231, and further improve the connecting stability.

[0091] Please continue to refer to Figure 7 In an embodiment of the present application, the protection member 1231 is arranged along the extension direction of the frame 122, the reinforcing ribs 1232 are multiple, and the filling grooves 1233 are multiple, and the materials of the buffer reinforcing member 124 filled in at least two of the multiple filling grooves 1233 are different.

[0092] In the embodiment, the protection member 1231 has an extension direction in the extension length direction of the frame 122, and in an example, the length of the protection member 1231 is close to the length of one side of the frame 122, so as to comprehensively protect the frame 122. In this way, multiple reinforcing ribs 1232, for example, three or more, are arranged, so as to form multiple filling grooves 1233, for example, four or more, the multiple filling grooves 1233 can be arranged in sequence and adjacent to each other in the length direction of the protection member 1231, and the opening areas of the multiple filling grooves 1233 are substantially the same, so as to effectively improve the uniformity of the strength.

[0093] The materials of the buffer reinforcing member 124 filled in at least two of the multiple filling grooves 1233 are different, which means that the buffer reinforcing member 124 is in a liquid state, can be filled or filled in the filling grooves 1233, and the materials in at least two of the filling grooves 1233 are different, for example, one of the filling grooves 1233 is filled with a colloid, and the other filling groove 1233 is filled with a foaming material. For example, the colloid is filled in the filling groove 1233 at the position where the impact is easy to occur, so as to mainly improve the structural strength, and the foaming material is filled in the filling groove 1233 at other positions, which is light in quality and effectively absorbs energy.

[0094] The structure can make the frame 122 have good resistance to external force at each position in the extension direction, and different materials with different strengths and buffering capacities can be selected according to the specific stress, so that the protection assembly 123 of the battery device 100 is more targeted, and the strength is improved without increasing the weight too much.

[0095] Please refer to Figure 6 In an embodiment of the present application, the surface of the buffer reinforcing member 124 is flush with the plane where the opening of the filling groove 1233 is located.

[0096] In the example, the surface of the buffer reinforcement 124 refers to the surface of the buffer reinforcement 124 exposed after the buffer reinforcement 124 is arranged in the filling groove 1233, that is, the surface of the protective member 1231 facing away from the groove bottom of the filling groove 1233. The plane where the opening of the filling groove 1233 is located refers to the surface in which the opening edges of the filling groove 1233 are all contained. The surface of the buffer reinforcement 124 is flush with the plane where the opening of the filling groove 1233 is located, which means that the buffer reinforcement 124 fills the filling groove 1233 without overflowing.

[0097] The structure can improve the structural strength and energy absorption capacity without affecting the overall installation space.

[0098] In an embodiment of the present application, the groove depth of the filling groove 1233 is H, wherein H is greater than or equal to 5 mm and less than or equal to 50 mm.

[0099] In the example, the groove depth of the filling groove 1233 refers to the straight-line distance between the opening of the filling groove 1233 and the groove bottom of the filling groove 1233. The height of the groove bottom surface of the filling groove 1233 at each position can be the same or different, and the height of the opening edge of the filling groove 1233 can be the same or different. Therefore, the groove depth values at different positions in the filling groove 1233 can be the same or different. The value of the groove depth H at each position is set to be greater than or equal to 5 mm and less than or equal to 50 mm, for example, 6 mm, 10 mm, 20 mm, 30 mm, 40 mm, etc. The filling groove 1233 with the size range can accommodate sufficient buffer reinforcement 124, improve the side impact energy absorption effect and structural strength, and not excessively increase the self-weight and volume.

[0100] Please continue to refer to Figure 6 In an embodiment of the present application, the groove bottom of the filling groove 1233 is at least partially an inclined surface 12331, and the inclined surface 12331 is arranged to be gradually inclined toward the opening of the filling groove 1233 in the direction from the center of the box body 10 to the edge.

[0101] In the example, the groove bottom of the filling groove 1233 includes a horizontal surface parallel to the bottom plate 121 and an inclined surface 12331 inclined relative to the horizontal surface, and the horizontal surface is arranged close to the frame 122, and the inclined surface 12331 is arranged away from the frame 122.

[0102] The arrangement of the inclined surface 12331 can facilitate the filling of the gel or foaming material, and the outer surface of the protective member 1231 can be well adapted to the installation space. At the same time, the inclined surface 12331 can better transmit the force to the buffer reinforcement 124 when side impact occurs, thereby achieving a better energy absorption effect.

[0103] Please continue to refer to Figure 7In an embodiment of the utility model, the end of the protection piece 1231 away from the frame 122 is provided with at least two mounting parts 1234, and the part of the protection piece 1231 between the adjacent two mounting parts 1234 is recessed towards the frame 122 to form an arc-shaped notch 1235.

[0104] In the example, the mounting part 1234 is a hole structure, which can be connected to the internal and external space by a connecting piece, and the connection structure is stable. In other examples, the mounting part 1234 can also be a protrusion or other structure. The arc-shaped notch 1235 is formed between the two mounting parts 1234, which can allow the mounting part 1234 to have a certain energy absorption space and buffering effect in the arrangement direction.

[0105] The mounting part 1234 is used for mounting and fixing the battery device 100, and the setting of the arc-shaped notch 1235 can further increase the buffering space of the battery device 100 and improve the energy absorption effect of external force.

[0106] In an example, two protection assemblies 123 are provided, which are arranged on the two surfaces of the opposite two sides of the frame 122 away from each other. On the one hand, the installation structure stability is improved, and on the other hand, the external force can be buffered and absorbed from both sides, thereby improving the structural strength of the box body 10.

[0107] Optionally, the opening of the groove structure 123a is arranged towards the bottom plate 121. In this way, after filling the buffer reinforcing part 124, the battery device 100 is installed on the electric equipment, and the buffer reinforcing part 124 is located at the bottom, so as not to be exposed and affected by other structures.

[0108] The utility model also provides a kind of box body 10, and the box body 10 includes bottom plate 121 and is arranged on the side of bottom plate 121 frame 122, and frame 122 and bottom plate 121 are enclosed to form installation cavity;

[0109] At least one of the opposite two sides of the frame 122 is connected with the surface of the protection assembly 123 away from the installation cavity, the protection assembly 123 is formed with groove structure 123a, and the groove structure 123a is filled with buffer reinforcing material. The box adopts all the technical solutions of the above-mentioned embodiments, so it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0110] In the scheme, the box 10 can be an upper box 10 structure, or a lower box 10 structure, and a mounting cavity with an opening is formed by the bottom plate 121 and the frame 122, which is not limited here. Here, the protection assembly 123 is arranged on the outer surface of at least one side edge of the frame 122, and the protection assembly 123 is formed with a groove structure 123a, which can receive the impact force when the battery device 100 is impacted or bumped on the side, and play a certain buffering protection role through the space of the groove. At the same time, a buffer reinforcing member 124 is arranged in the groove, which is an entity structure with a certain structural strength and a certain deformation capacity to play a buffering role, which can further improve the structural strength of the frame 122 and improve the side impact energy absorption capacity, and improve the protection of the battery device 100.

[0111] The utility model also proposes a kind of electric equipment, including the battery device 100 as any above;Or, including the box 10 as above. The battery device 100 or box 10 of the electric equipment adopts all technical solutions of the above all embodiments, so it has at least all beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0112] Among them, the electric equipment can be mobile phone, notebook computer, electric car, electric car and energy storage station etc., and the specific type of electric equipment is not limited in the present application. When the electric equipment includes battery device 100, it can provide electric energy through battery device 100.

[0113] The above is only preferred embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made under the utility model concept of the utility model, or direct / indirect application in other related technical fields is included in the patent protection range of the utility model.

Claims

1. A battery device, characterized by, The battery device comprises a box body and a battery cell, the box body comprises a bottom plate and a frame arranged on the periphery of the bottom plate, the frame and the bottom plate form an installation cavity, and the battery cell is arranged in the installation cavity; At least one of the opposite two side edges of the frame is connected with a protection assembly away from the surface of the installation cavity, the protection assembly is formed with a groove structure, and a buffer reinforcing piece is arranged in the groove structure.

2. The battery device of claim 1, wherein The material of the buffer reinforcing piece is a gel.

3. The battery device of claim 2, wherein The gel is a two-component polyurethane structural adhesive.

4. The battery device of claim 3, wherein The viscosity range of the gel is greater than or equal to 2000cps and less than or equal to 10000cps.

5. The battery device of claim 1, wherein The material of the buffer reinforcing piece is a foaming material.

6. The battery device of claim 5, wherein The foaming material is rigid polyurethane foam plastic.

7. The battery device according to any one of claims 1 to 6, wherein The protection assembly comprises a protection piece and a reinforcing rib, the protection piece is formed by extending the outer surface of at least one side edge of the frame away from the center of the box body, and forms the groove structure; The reinforcing rib is arranged in the groove structure and divides the groove structure into at least two filling grooves, and each filling groove is filled with the buffer reinforcing piece.

8. The battery device of claim 7, wherein The protection piece is arranged along the extension direction of the frame, the reinforcing rib is provided in plurality, and the filling groove is provided in plurality, and the materials of the buffer reinforcing pieces in at least two of the plurality of filling grooves are different.

9. The battery device of claim 7, wherein The surface of the buffer reinforcing piece is flush with the plane where the opening of the filling groove is located.

10. The battery device of claim 7, wherein The groove depth of the filling groove is H, wherein H is greater than or equal to 5mm and less than or equal to 50mm.

11. The battery device of claim 7, wherein The groove bottom of the filling groove is at least partially an inclined surface, and the inclined surface is gradually inclined to the opening of the filling groove in the direction from the center of the box body to the edge.

12. The battery device of claim 7, wherein, At least two hanging parts are arranged at the end of the protection piece away from the frame, and the part of the protection piece between the adjacent two hanging parts is recessed to form an arc-shaped notch in the direction of the frame.

13. A case characterized by, The box body comprises a bottom plate and a frame arranged on the periphery of the bottom plate, the frame and the bottom plate form an installation cavity; At least one of the opposite two side edges of the frame is connected with a protection assembly away from the surface of the installation cavity, the protection assembly is formed with a groove structure, and a buffer reinforcing piece is arranged in the groove structure.

14. An electrical device, characterized by The battery device comprises a box body and a battery cell, the box body comprises a bottom plate and a frame arranged on the periphery of the bottom plate, the frame and the bottom plate form an installation cavity, and the battery cell is arranged in the installation cavity; At least one of the opposite two side edges of the frame is connected with a protection assembly away from the surface of the installation cavity, the protection assembly is formed with a groove structure, and a buffer reinforcing piece is arranged in the groove structure. The battery device comprises a box body and a battery cell, the box body comprises a bottom plate and a frame arranged on the periphery of the bottom plate, the frame and the bottom plate form an installation cavity, and the battery cell is arranged in the installation cavity; At least one of the opposite two side edges of the frame is connected with a protection assembly away from the surface of the installation cavity, the protection assembly is formed with a groove structure, and a buffer reinforcing piece is arranged in the groove structure.

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