Battery device and electric device

Abstract

The utility model discloses a battery device and a power utilization device. The battery device comprises a box body and a single battery, the box body comprises a box body and a hanging structure, the box body comprises a bottom wall and a side wall, the side wall is arranged on the periphery of the bottom wall in a surrounding mode, the side wall and the bottom wall jointly define a containing cavity, and the single battery is contained in the containing cavity; the mounting structure is arranged outside the box body and comprises a first part and a second part, the first part is connected with the second part, the first part is connected with the side wall, and the second part is connected with the bottom wall. According to the mounting structure, the mounting structure is connected with the different sides of the box body at the same time, the connecting area of the mounting structure and the box body can be increased, the connecting strength of the mounting structure and the box body is improved, on the other hand, the mounting structure is stressed in multiple areas, the risk that local stress of the mounting structure is too large is reduced, and the mounting structure is not prone to loosening and deformation.

Description

Technical Field

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

[0002] The battery device includes a box body. The box body is usually provided with a mounting structure, and the box body can be fixed on the electrical device through the mounting structure. The related art provides a box body, in which the mounting structure and the box body have low connection strength, and the mounting structure is prone to loosening and deformation. Utility Model Content

[0003] In view of the above problems, the present application provides a battery device and an electrical device, which can improve the connection strength between the mounting structure and the box body and reduce the risk of loosening and deformation between the mounting structure and the box body.

[0004] In order to solve the above-mentioned technical problems, a technical solution adopted in the present application is to provide a battery device, which includes a box body and a battery cell. The box body includes a box body main body and a mounting structure, and the box body main body includes a bottom wall and a side wall. The side wall is arranged around the periphery of the bottom wall and defines a receiving cavity together with the bottom wall, and the battery cell is accommodated in the receiving cavity; the mounting structure is arranged outside the box body, and the mounting structure includes a first part and a second part, the first part is connected to the second part, the first part is connected to the side wall, and the second part is connected to the bottom wall.

[0005] In the battery device of the above structure, the mounting structure is connected to the side wall and the bottom wall of the box body at the same time, which can increase the connection area between the mounting structure and the box body and improve the connection strength between the mounting structure and the box body. On the other hand, the mounting structure is subjected to stress in multiple areas, which reduces the risk of excessive local stress on the mounting structure, and the mounting structure is not prone to loosening or deformation.

[0006] In a possible embodiment, the mounting structure includes: a first mounting member, the first mounting member includes a first section and a second section, the first section is connected to the second section, the first section is connected to the side wall of the box body, and the second section is connected to the bottom wall of the box body; wherein a portion of the first section is recessed toward the side wall to form a groove; and a second mounting member, the second mounting member is arranged in the groove, one side of the second mounting member is connected to the side wall, and the other side of the second mounting member is connected to the first mounting member.

[0007] In the above structure, the first section is recessed to form a groove. The groove design makes the first section of the first mounting component not a flat structure. The first section has a groove as a multi-section bent structure, which can increase the structural strength of the first mounting component. At the same time, the second mounting component is arranged in the groove. The first section of the first mounting component is also connected to the side wall of the box body through the second mounting component. The second mounting component serves as a structural reinforcement component, which increases the connection points between the first mounting component and the side wall, and further improves the connection strength between the mounting structure and the box body.

[0008] In a possible embodiment, the mounting structure also includes: a third mounting member, the third mounting member is connected to the first mounting member, and the third mounting member is located outside the groove; wherein, the first mounting member also includes a third section, the third section is connected to one end of the first section away from the second section, the third mounting member includes a fourth section, the fourth section is spaced apart from the third section, and the third section and the fourth section have fixing holes; a fixing device, the two sides of the fixing device are respectively fixed to the fixing holes of the third section and the fourth section, and the fixing device is used to fix the battery device to the electrical device through a fixing member.

[0009] As mentioned above, the third mounting member is provided to connect the first mounting member, which increases the strength of the mounting structure. On the other hand, the two sides of the fixing device are respectively fixed to the third section of the first mounting member and the fourth section of the third mounting member, so that the fixing strength of the fixing device is higher, and the battery device can be fixed to the electrical device through the fixing device.

[0010] In a possible implementation, the third mounting component further includes: a fifth section, the fifth section being connected to the fourth section, the fifth section being connected to the outside of the bottom of the groove; a sixth section, the sixth section being connected to one end of the fifth section away from the fourth section, the sixth section being connected to the second section of the first mounting component.

[0011] As mentioned above, the fifth section and the sixth section of the third mounting component are connected to the first mounting component, which can increase the strength of the mounting structure.

[0012] In a possible implementation manner, the first section and the third section of the first mounting component are arranged at an angle.

[0013] As mentioned above, the first section and the third section are bent, which can increase the structural strength of the first section and the third section.

[0014] In a possible implementation manner, the first mounting component, the second mounting component, and the third mounting component are respectively integrally formed structures.

[0015] As described above, the first mounting part, the second mounting part, and the third mounting part each have good integrity, and each mounting part has no connection parts and parting lines, so the mounting structure is beautiful and has higher structural strength.

[0016] In a possible implementation, the first mounting member is spot-welded to the second mounting member, the first mounting member is spot-welded to the third mounting member, the first mounting member is spot-welded to the box body, and the second mounting member is spot-welded to the box body.

[0017] As mentioned above, the spot welding connection has the advantage of a small heat area, and the deformation of the mounting structure and the box body is small during the welding process.

[0018] In a possible implementation manner, a via is provided on the mounting structure.

[0019] As mentioned above, the vias can facilitate the spot welding operation and can also discharge the heat and smoke during the spot welding process. In addition, the vias also facilitate the passage of the electrophoresis liquid in the subsequent electrophoresis process.

[0020] In a possible implementation manner, a first bent edge is disposed on one or more sides of the first mounting component, and a second bent edge is disposed on one or more sides of the third mounting component.

[0021] As mentioned above, the first bent edge plays a structural reinforcement role for the first mounting member, and the second bent edge plays a structural reinforcement role for the third mounting member.

[0022] In a possible embodiment, the box body includes a frame, the frame includes side walls and a first bottom plate, the side walls are arranged around the accommodating cavity, the first bottom plate is connected to the side walls and extends toward the accommodating cavity relative to the side walls, the box body also includes a second bottom plate, the second bottom plate is connected to the first bottom plate, the bottom wall includes the first bottom plate and the second bottom plate, wherein the first part is connected to the side wall, and the second part is connected to the first bottom plate.

[0023] As described above, the first part and the second part of the mounting structure are both connected to the frame, and the structural stability is better.

[0024] In a possible implementation, the frame is an integral stamped frame, and the integral stamped frame is integrally formed.

[0025] The one-piece stamped frame has better integrity, high strength, and does not require welding.

[0026] In order to solve the above technical problem, another technical solution adopted by the present application is to provide an electrical device, which includes a battery device, and the battery device is the above-mentioned battery device, and the battery device is used to provide electrical energy.

[0027] In the above-mentioned electrical device, the mounting structure is connected to the side wall and the bottom wall of the box body at the same time, which can increase the connection area between the mounting structure and the box body and improve the connection strength between the mounting structure and the box body. On the other hand, the mounting structure is subjected to stress in multiple areas, which reduces the risk of excessive local stress on the mounting structure, and the mounting structure is not prone to loosening or deformation.

[0028] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 is a schematic structural diagram of a vehicle according to one or more embodiments;

[0031] Figure 2 A schematic diagram of a bottom view of a box body in a battery device according to some embodiments;

[0032] Figure 3 is a schematic diagram of a top view of a box body in a battery device according to other embodiments;

[0033] Figure 4 is a schematic structural diagram of a battery cell according to some embodiments;

[0034] Figure 5 for Figure 2 Structural diagram of the mounting structure in the box;

[0035] Figure 6 for Figure 5 A schematic structural diagram of a second mounting component in the mounting structure;

[0036] Figure 7 for Figure 5 A schematic structural diagram of a first mounting component in the mounting structure from a first perspective;

[0037] Figure 8 for Figure 5 A schematic structural diagram of a first mounting component in the mounting structure from a second viewing angle;

[0038] Fig. 9 for Figure 5A schematic structural diagram of the third mounting component in the mounting structure from a first-person perspective;

[0039] Fig.10 for Figure 5 Schematic diagram of the structure of the third mounting component in the mounting structure from the second perspective.

[0040] Among them, 1000, vehicle; 200, controller; 300, motor; 100, battery device; 110, battery cell; 120, box; 20, box body; 21, side wall; 22, bottom wall; 30, mounting structure; 23, accommodating cavity; 31, first part; 32, second part; 410, first mounting member; 411, first section; 412, second section; 413, third section; 414, first bent edge; 420, second mounting member; 430, third mounting member; 431, fourth section; 432, fifth section; 433, sixth section; 434, second bent edge; 44, through hole; 45, fixing device; 211, frame; 212, first bottom plate; 220, second bottom plate. DETAILED DESCRIPTION

[0041] The following is a detailed description of the embodiments of the technical solution of the present application. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0043] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, unless otherwise clearly and specifically defined, the term "multiple" refers to more than two (including two), similarly, "multiple groups" refers to more than two (including two), and "multiple pieces" refers to more than two (including two).

[0044] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0045] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0046] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0047] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like 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 a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0048] At present, from the perspective of market development, batteries are being used more and more widely. 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 military equipment and aerospace and other fields. With the continuous expansion of battery application areas, the market demand is also constantly expanding.

[0049] The battery device includes a box body. The box body is usually provided with a mounting structure, and the box body can be fixed on the electrical device through the mounting structure. The related art provides a box body, in which the mounting structure and the box body have low connection strength, and the mounting structure is prone to loosening and deformation.

[0050] Based on the above considerations, in order to solve the technical problems in the prior art that the connection strength between the mounting structure and the box body is low, and the mounting structure and the box body are prone to loosening and deformation, the present application proposes a battery device and an electrical device. The mounting structure of the battery device includes a first part and a second part, and the first part and the second part are respectively connected to the side wall and the bottom wall of the box body, which can improve the connection strength between the mounting structure and the box body.

[0051] For the convenience of description, the following embodiments are described by taking a vehicle as an example of an electrical device in an embodiment of the present application.

[0052] Please refer to Figure 1 , Figure 1 is a schematic diagram of the structure of a vehicle according to one or more embodiments.

[0053] The vehicle 1000 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, etc. A battery device 100 is provided inside the vehicle 1000, and the battery device 100 may be provided at the bottom, head or tail 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. The vehicle 1000 may also include a controller 200 and a motor 300, and the controller 200 is used to control the battery device 100 to power the motor 300, for example, for starting, navigating and driving the vehicle 1000.

[0054] In some embodiments of the present application, the battery device 100 can not only serve as an operating power source for the vehicle 1000, but also serve 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.

[0055] In order to improve the performance of the electrical device, the present application provides a battery device, please refer to Figure 2 and Figure 3 ; Figure 2 A schematic diagram of a bottom view of a box body in a battery device according to some embodiments; Figure 3 Schematic diagram of a top view of a box structure in a battery device according to other embodiments.

[0056] In some embodiments, the battery device 100 includes a box body 120. The box body 120 includes a box body 20 and a mounting structure 30. The box body 20 includes a bottom wall 22 and a side wall 21. The side wall 21 is arranged around the periphery of the bottom wall 22 and defines a receiving cavity 23 together with the bottom wall 22. The battery cell 110 is received in the receiving cavity 23. The mounting structure 30 is arranged outside the box body 20. The mounting structure 30 includes a first portion 31 and a second portion 32. The first portion 31 is connected to the second portion 32, the first portion 31 is connected to the side wall 21, and the second portion 32 is connected to the bottom wall 22.

[0057] The box 120 is used to protect the battery cell 110 and provide a sealed and electrically isolated environment for the battery cell 110. The box 120 has a receiving cavity 23, and the battery cell 110 is disposed in the receiving cavity 23. Figure 4 , Figure 4 Schematic diagram of the structure of a battery cell according to some embodiments. In this embodiment, the box body 120 is a rectangular body. In some other embodiments, the box body 120 can also be a cylinder, a triangular prism, an irregular polygon, etc. Among them, the first part 31 and the second part 32 of the mounting structure 30 are an integrated structure. In other embodiments, the first part 31 and the second part 32 can also be connected by screws, rivets or welding. In this embodiment, the mounting structure 30 is welded to the box body 20. In some other embodiments, the mounting structure 30 and the box body 20 can also be connected by screws, screws, rivets and other methods. In addition, the first part 31 and the second part 32 are connected to the side wall 21 and the bottom wall 22 of the box body 20, so that the mounting structure 30 is also bent, which can improve the strength of the mounting structure 30. In some embodiments, the box body 120 also includes a box cover (not shown), which is arranged on the box body 20 and is configured to open or cover the accommodating cavity 23.

[0058] Through the above structure, the mounting structure 30 is connected to the side wall 21 and the bottom wall 22 of the box body 20 at the same time, which can increase the connection area between the mounting structure 30 and the box body 20, and improve the connection strength between the mounting structure 30 and the box body 20. On the other hand, the mounting structure 30 is stressed in multiple areas, which reduces the risk of excessive stress on the mounting structure 30 locally, and the mounting structure 30 is not prone to loosening or deformation. In addition, the mounting structure 30 composed of the first part 31 and the second part 32 is bent, and the bent mounting structure 30 has higher strength.

[0059] See also Figure 5 and Figure 6 , Figure 5 for Figure 2 Structural diagram of the mounting structure in the box. Figure 6 for Figure 5Schematic diagram of the structure of the second mounting member in the mounting structure. In some embodiments, the mounting structure 30 includes a first mounting member 410 and a second mounting member 420. The first mounting member 410 includes a first section 411 and a second section 412, the first section 411 is connected to the second section 412, the first section 411 is connected to the side wall 21 of the box body 20, and the second section 412 is connected to the bottom wall 22 of the box body 20; wherein a portion of the first section 411 is recessed away from the side wall 21 to form a groove; the second mounting member 420 is disposed in the groove, one side of the second mounting member 420 is connected to the side wall 21, and the other side of the second mounting member 420 is connected to the first mounting member 410.

[0060] In the present embodiment, the first mounting member 410 and the second mounting member 420 are respectively an integrally formed structure, which can be manufactured by stamping, injection molding, etc. In some other embodiments, the sections of the first mounting member 410 and the sections of the second mounting member 420 can also be welded. A groove is formed on the first section 411, and the groove makes the first section 411 in the shape of a bent plate, which has a stronger ability to resist deformation and can withstand greater gravity. In the present embodiment, the groove is approximately a rectangular body, and in some other embodiments, the groove can also be a cylinder, an irregular polygon, etc. Among them, the second mounting member 420 is used to connect the bottom of the groove on the first section 411 of the first mounting member 410 to the box body 20. While the anti-deformation ability of the mounting structure 30 is improved by the groove, the mounting structure 30 and the box body 20 have a larger connection area. In this embodiment, the first mounting member 410 and the second mounting member 420 are fixed together by welding. In other embodiments, the first mounting member 410 and the second mounting member 420 can be fixed together by welding and fixing with a fixing member at the same time. The fixing member can be a rivet, a screw, etc.

[0061] As mentioned above, the groove can increase the structural strength of the first mounting component 410. At the same time, the second mounting component 420 is arranged in the groove. The first section 411 of the first mounting component 410 is also connected to the side wall 21 of the box body 20 through the second mounting component 420. The second mounting component 420 serves as a structural reinforcement, which increases the connection area between the first mounting component 410 and the side wall 21, and further improves the connection strength between the mounting structure 30 and the box body 20.

[0062] In some embodiments, the mounting structure 30 also includes a third mounting component 430, which is connected to the first mounting component 410 and is located outside the groove; wherein the first mounting component 410 also includes a third section 413, which is connected to one end of the first section 411 away from the second section 412, and the third mounting component 430 includes a fourth section 431, which is spaced apart from the third section 413, and the third section 413 and the fourth section 431 have fixing holes; a fixing device 45, wherein both sides of the fixing device 45 are respectively fixed on the fixing holes of the third section 413 and the fourth section 431, and the fixing device 45 is used to fix the battery device 100 on the electrical device through a fixing component.

[0063] The third mounting member 430 is connected to the first mounting member 410, and the third mounting member 430 can increase the strength of the first mounting member 410. In addition, the third mounting member 430 and the first mounting member 410 are used to fix the fixing device 45. In this embodiment, the third section 413 of the first mounting member 410 and the fourth section 431 of the third mounting member 430 are parallel to each other, and the two sides of the fixing device 45 are respectively fixed to the fixing holes of the third section 413 and the fourth section 431. The fixing of the two sides of the fixing device 45 can improve the fixing strength, wherein the two sides of the fixing device 45 can be welded to the fixing holes of the third section 413 and the fourth section 431, and the two sides of the fixing device 45 can also be clamped and fixed to the fixing holes of the third section 413 and the fourth section 431. In this embodiment, the fixing device 45 is a sleeve, so that the battery device 100 can be fixed to the electrical device by bolts.

[0064] As mentioned above, the third mounting member 430 is provided to connect the first mounting member 410, thereby increasing the strength of the mounting structure 30. On the other hand, the two sides of the fixing device 45 are respectively fixed to the third section 413 of the first mounting member 410 and the fourth section 431 of the third mounting member 430, thereby making the fixing strength of the fixing device 45 higher. The battery device 100 can be fixed to the electrical device through the fixing device 45.

[0065] See also Fig. 9 and Fig.10 , Fig. 9 for Figure 5 A schematic structural diagram of the third mounting component in the mounting structure from a first-person perspective; Fig.10 for Figure 5 Schematic diagram of the structure of the third mounting member in the mounting structure from a second perspective. In some embodiments, the third mounting member 430 further includes: a fifth section 432, the fifth section 432 is connected to the fourth section 431, and the fifth section 432 is connected to the outside of the bottom of the groove; and a sixth section 433, the sixth section 433 is connected to the fifth section 432, and the sixth section 433 is connected to the second section 412 of the first mounting member 410.

[0066] The fifth section 432 is connected to the outside of the groove bottom, and the fifth section 432 can increase the strength of the first section 411 of the first mounting member 410. The sixth section 433 is connected to the second section 412 of the first mounting member 410, and the sixth section 433 can increase the strength of the second section 412 of the first mounting member 410.

[0067] As mentioned above, the fifth section 432 and the sixth section 433 of the third mounting component 430 are connected to the first mounting component 410 , which can increase the strength of the mounting structure 30 .

[0068] See also Figure 7 and Figure 8 , Figure 7 for Figure 5 A schematic structural diagram of a first mounting component in the mounting structure from a first perspective; Figure 8 for Figure 5 Schematic diagram of the structure of the first mounting member in the mounting structure from a second viewing angle. In some embodiments, the first section 411 and the third section 413 of the first mounting member 410 are arranged at an angle.

[0069] The first section 411 of the first mounting member 410 is used to connect to the side wall 21 of the box body 20, and the third section 413 of the first mounting member 410 is used to fix the fixing device 45. In this embodiment, the third section 413 of the first mounting member 410 is parallel to the horizontal direction. This setting makes the sleeve fixed on the third section 413 perpendicular to the horizontal direction. This setting enables the mounting structure 30 to withstand greater gravity after the battery device 100 is fixed to the electrical device through the sleeve. Among them, the angle between the first section 411 and the third section 413 can be 90 degrees, 85 degrees, 110 degrees, etc.

[0070] As mentioned above, the first section 411 and the third section 413 are bent, and the bent mounting structure 30 has a stronger ability to resist deformation.

[0071] In some embodiments, the first mounting component 410 , the second mounting component 420 , and the third mounting component 430 are integrally formed structures.

[0072] The first mounting member 410, the second mounting member 420, and the third mounting member 430 are respectively integrally formed structures, which can improve the overall strength of the mounting structure 30. The manufacturing method may be stamping, injection molding, etc. In other embodiments, the first mounting member 410, the second mounting member 420, and the third mounting member 430 may also be manufactured by profile welding.

[0073] As described above, the first mounting member 410 , the second mounting member 420 , and the third mounting member 430 have good integrity, and each mounting member has no connection parts and parting lines, so the mounting structure 30 is beautiful and has higher structural strength.

[0074] In some embodiments, the first mounting member 410 is spot-welded to the second mounting member 420 , the first mounting member 410 is spot-welded to the third mounting member 430 , the first mounting member 410 is spot-welded to the box body 20 , and the second mounting member 420 is spot-welded to the box body 20 .

[0075] The heating area of ​​the spot welding process is smaller, the deformation of the mounting structure 30 can be smaller, and the spot welding connection is not easy to damage the coating on the surface of the mounting structure 30, and the integrity of the mounting structure 30 and the box body 20 is better after welding. In other embodiments, the mounting parts, the mounting structure 30 and the box body 20 can also be connected by arc welding, stirring welding, bolts, screws and other methods. In other embodiments, the mounting parts, the mounting structure 30 and the box body 20 are connected by spot welding, and at the same time, the mounting parts, the mounting structure 30 and the box body 20 are also reinforced by screws, bolts and the like.

[0076] As mentioned above, the spot welding connection has the advantage of a small heat area, and the deformation of the mounting structure 30 and the box body 20 is small during the welding process.

[0077] In some embodiments, a via 44 is disposed on the mounting structure 30 .

[0078] Among them, the fifth section 432 of the third mounting part 430 and the first section 411 of the first mounting part 410 are both provided with a through hole 44. In the present embodiment, the number of the through hole 44 on the third mounting part 430 and the first mounting part 410 is one. In some other embodiments, the number of the through holes 44 on the third mounting part 430 and the first mounting part 410 can also be multiple. On the one hand, the through hole 44 can be used for the welding head of the spot welding device to pass through, and for the heat and smoke in the spot welding process to be discharged. On the other hand, the through hole 44 is also used for the subsequent electrophoresis to make a coating on the surface of the mounting structure 30, so as to facilitate the flow of the electrophoretic liquid, so that the coating on the surface of the mounting structure 30 can be dense and uniform.

[0079] As mentioned above, the via hole 44 can facilitate the spot welding operation and can also discharge the heat and smoke during the spot welding process. In addition, the via hole 44 is also convenient for the passage of the electrophoresis liquid in the subsequent electrophoresis process.

[0080] In some embodiments, a first bent edge 414 is disposed on one or more sides of the first mounting component 410 , and a second bent edge 434 is disposed on one or more sides of the third mounting component 430 .

[0081] The first curved edge 414 plays a structural reinforcement role for the first mounting member 410, reducing the risk of deformation of the first mounting member 410. The second curved edge 434 plays a structural reinforcement role for the second mounting member 420, reducing the risk of deformation of the second mounting member 420. In this embodiment, the first section 411 and the third section 413 of the first mounting member 410 are both provided with the first curved edge 414. The first curved edge 414 is provided on both sides of the first section 411 and the third section 413. In some other embodiments, the first curved edge 414 can also be provided on one side of the first section 411 and the third section 413. In this embodiment, the second curved edge 434 is provided on both the third section 413 and the fifth section 432 of the third mounting member 430. Similarly, the second curved edge 434 can be provided on one or more sides of the third section 413 and the fifth section 432. In this embodiment, the angle between the first curved edge 414 and the first section 411 or the third section 413 is 90 degrees, and the angle between the second curved edge 434 and the third section 413 or the fifth section 432 is 90 degrees. In other embodiments, the angles can also be acute or obtuse at reasonable angles.

[0082] As mentioned above, the first curved edge 414 plays a structural reinforcement role for the first mounting member 410 , and the second curved edge 434 plays a structural reinforcement role for the third mounting member 430 .

[0083] In some embodiments, the box body 20 includes a frame 211, the frame 211 includes a side wall 21 and a first bottom plate 212, the side wall 21 is arranged around the accommodating cavity 23, the first bottom plate 212 is connected to the side wall 21, and extends toward the accommodating cavity 23 relative to the side wall 21, the box body 20 also includes a second bottom plate 220, the first bottom plate 212 is connected to the second bottom plate 220, the bottom wall 22 includes the first bottom plate 212 and the second bottom plate 220, wherein the first part 31 is connected to the side wall 21, and the second part 32 is connected to the first bottom plate 212.

[0084] The bottom wall 22 includes a first bottom plate 212 and a second bottom plate 220. The side wall 21 of the frame 211 and the first bottom plate 212 are an integrated structure. After the first part 31 and the second part 32 of the mounting structure 30 are respectively connected to the side wall 21 and the first bottom plate 212 of the integrated structure, the mounting structure 30 and the frame 211 have better integrity. In some other embodiments, the second bottom plate 220 can also be a heat exchange plate to perform thermal management on the battery device 100 through the second bottom plate.

[0085] In some embodiments, the frame 211 is an integral stamped frame, and the integral stamped frame is integrally formed.

[0086] In the present embodiment, the integral stamped frame is made by cutting, bending, and stamping a metal sheet. Stamping refers to applying an external force to the metal sheet to cause it to undergo plastic deformation and have a specific shape. In the present embodiment, the integral stamped frame is formed by stamping once. Compared with the method of welding multiple profiles to form a frame, the integral stamped frame has better integrity and higher strength. The mounting structure 30 is more stable after being fixed on the integral stamped frame. As described above, the integral stamped frame has better integrity and high strength, and does not require welding.

[0087] The present application also provides an electric device, which includes a battery device 100. It should be noted that the battery device 100 in this embodiment is the battery device 100 described in the above embodiment, and will not be described in detail here.

[0088] As described above, the mounting structure 30 in the battery device 100 is connected to different sides of the box body 20 at the same time, which can increase the connection area between the mounting structure 30 and the box body 20 and improve the connection strength between the mounting structure 30 and the box body 20. On the other hand, the mounting structure 30 is stressed in multiple areas, which reduces the risk of excessive local stress on the mounting structure 30, and the mounting structure 30 is not prone to loosening or deformation.

[0089] Finally, in a specific application scenario, the problem of low connection strength between the mounting structure 30 of the existing battery device 100 and the box body 20 is addressed. The battery device 100 of the present application includes a box body 120 and a battery cell 110. The box body 120 includes a box body 20. The box body 20 includes a bottom wall 22 and a side wall 21. The side wall 21 is arranged around the periphery of the bottom wall 22, and together with the bottom wall 22, defines a receiving cavity 23, and the battery cell 110 is received in the receiving cavity 23. The first part 31 of the mounting structure 30 is connected to the side wall 21, and the second part 32 is connected to the bottom wall 22. The mounting structure 30 includes: a first mounting member 410, the first mounting member 410 includes a first section 411 and a second section 412, the first section 411 is connected to the side wall 21 of the box body 20, and the second section 412 is connected to the bottom wall 22 of the box body 20; wherein the first section 411 is formed with a groove. The second mounting member 420 is arranged in the groove, and the mounting structure 30 further includes a third mounting member 430, and the third mounting member 430 is located outside the groove; wherein, the first mounting member 410 further includes a third section 413, and the third section 413 is connected to the first section 411, and the third mounting member 430 includes a fourth section 431, and the fourth section 431 is arranged at intervals from the third section 413, and the third section 413 and the fourth section 431 have fixing holes; a fixing device 45, and the two sides of the fixing device 45 are respectively fixed on the fixing holes of the third section 413 and the fourth section 431, and the fixing device 45 is used to fix the battery device 100 on the electrical device through the fixing member. The third mounting member 430 further includes: a fifth section 432, and the fifth section 432 is connected to the fourth section 431, and the fifth section 432 is connected to the outside of the groove bottom; a sixth section 433, and the sixth section 433 is connected to the fifth section 432, and the sixth section 433 is connected to the second section 412 of the first mounting member 410. The first mounting member 410 is spot-welded to the second mounting member 420, the first mounting member 410 is spot-welded to the third mounting member 430, the first mounting member 410 is spot-welded to the box body 20, and the second mounting member 420 is spot-welded to the box body 20. A through hole 44 is provided on the mounting structure 30. The box body 20 includes a frame 211, the frame 211 includes a side wall 21 and a first bottom plate 212, the side wall 21 is arranged around the accommodating cavity 23, the first bottom plate 212 is connected to the side wall 21, and extends relative to the side wall 21 toward the accommodating cavity 23, the box body 20 also includes a second bottom plate 220, the second bottom plate 220 is connected to the first bottom plate 212, the bottom wall 22 includes the first bottom plate 212 and the second bottom plate 220, wherein the first portion 31 is connected to the side wall 21, and the second portion 32 is connected to the first bottom plate 212.

[0090] Through the above method, the mounting structure 30 is connected to the side wall 21 and the bottom wall 22 of the box body 20 at the same time, which can increase the connection area between the mounting structure 30 and the box body 20 and improve the connection strength between the mounting structure 30 and the box body 20. On the other hand, the mounting structure 30 is stressed in multiple areas, which reduces the risk of excessive local stress on the mounting structure 30, and the mounting structure 30 is not prone to loosening or deformation.

[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A battery device, characterized in that: The battery device comprises a box body and a battery cell, wherein the box body comprises: A box body, the box body comprising a bottom wall and side walls, the side walls being arranged around the periphery of the bottom wall and defining together with the bottom wall a receiving cavity, the battery cell being received in the receiving cavity; The mounting structure is arranged outside the box body, and the mounting structure includes a first part and a second part, the first part is connected to the second part, the first part is connected to the side wall, and the second part is connected to the bottom wall.

2. The battery device according to claim 1, characterized in that: The mounting structure includes: A first mounting member, the first mounting member comprises a first section and a second section, the first section is connected to the second section, the first section is connected to the side wall of the box body, and the second section is connected to the bottom wall of the box body; wherein a portion of the first section is recessed away from the side wall to form a groove; A second mounting member, wherein the second mounting member is disposed in the groove, one side of the second mounting member is connected to the side wall, and the other side of the second mounting member is connected to the first mounting member.

3. The battery device according to claim 2, characterized in that: The mounting structure also includes: a third mounting member, the third mounting member being connected to the first mounting member and being located outside the groove; wherein the first mounting member further comprises a third section, the third section being connected to an end of the first section away from the second section, the third mounting member comprising a fourth section, the fourth section being spaced apart from the third section, and the third section and the fourth section having fixing holes; A fixing device, both sides of which are fixed to the fixing holes of the third section and the fourth section respectively, and the fixing device is used to fix the battery device to the electrical device through a fixing piece.

4. The battery device according to claim 3, characterized in that: The third mounting component also includes: A fifth section, the fifth section is connected to the fourth section, and the fifth section is connected to the outside of the bottom of the groove; The sixth section is connected to an end of the fifth section away from the fourth section, and the sixth section is connected to the second section of the first mounting component.

5. The battery device according to claim 3, characterized in that: The first section and the third section of the first mounting member are arranged at an angle.

6. The battery device according to claim 3, characterized in that: The first mounting component, the second mounting component and the third mounting component are respectively integrally formed structures.

7. The battery device according to claim 3, characterized in that: The first mounting part is spot-welded to the second mounting part, the first mounting part is spot-welded to the third mounting part, the first mounting part is spot-welded to the box body, and the second mounting part is spot-welded to the box body.

8. The battery device according to claim 1, characterized in that: The mounting structure is provided with a via.

9. The battery device according to claim 3, characterized in that: One or more sides of the first mounting component are provided with a first bent edge, and one or more sides of the third mounting component are provided with a second bent edge.

10. The battery device according to claim 1, characterized in that: The box body includes a frame, which includes side walls and a first bottom plate, the side walls are arranged around the accommodating cavity, the first bottom plate is connected to the side walls and extends toward the accommodating cavity relative to the side walls, the box body also includes a second bottom plate, the second bottom plate is connected to the first bottom plate, the bottom wall includes the first bottom plate and the second bottom plate, wherein the first part is connected to the side walls, and the second part is connected to the first bottom plate.

11. The battery device according to claim 10, characterized in that: The frame is an integrated stamped frame.

12. An electrical device, characterized in that: The electrical device comprises the battery device according to any one of claims 1 to 11, and the battery device is used to provide electrical energy.

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