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, an upper cover and a battery monomer group, and the upper cover and the box body are mutually covered to form an accommodating space; a metal layer is arranged on the side, away from the box body, of the upper cover, and / or an alloy layer is arranged on the side, away from the box body, of the upper cover, and a connecting hole is formed in the side, away from the box body, of the upper cover. The battery cell group is accommodated in the accommodation space. According to the scheme provided by the utility model, the connecting holes are formed in the side, deviating from the box body, of the upper cover, so that the cross beam on the whole vehicle is also made of the metal material under the condition that the overall strength of the upper cover is ensured; the upper cover is directly connected with the cross beam on the whole vehicle through the connecting piece, so that the space of the whole vehicle can be fully utilized, and meanwhile, due to the fact that the upper cover is directly connected with the cross beam in a contact mode, the ground clearance of the box body can be increased.

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] Compared with traditional cars, electric cars not only get rid of dependence on oil, but also have the advantages of not emitting polluting gases when in use, thus protecting the urban environment.

[0003] After the battery pack on the battery car in the related art is installed, it will cause the problem of small gap between the battery pack and the ground when the car is driving. Utility Model Content

[0004] In view of the above problems, the present application provides a battery device and an electrical device, which can solve the problem that after the battery pack is installed, the gap between the battery pack and the ground is small.

[0005] In order to solve the above technical problems, in a first aspect, the present application proposes a battery device, comprising:

[0006] Box;

[0007] An upper cover, wherein the upper cover and the box body are covered with each other to form a receiving space; a metal layer is provided on a side of the upper cover away from the box body, and / or an alloy layer is provided on a side of the upper cover away from the box body, and a connection hole is provided on a side of the upper cover away from the box body;

[0008] The battery cell group is accommodated in the accommodation space.

[0009] In the technical solution of the embodiment of the present application, since a metal layer and / or an alloy layer is provided on the upper cover, the overall strength of the upper cover can be improved. Since a connecting hole is provided on the side of the upper cover facing away from the box body, at this time, under the condition that the overall strength of the upper cover is ensured, since the crossbeam on the whole vehicle itself is also made of metal, when the battery device needs to be installed on the beam of the whole vehicle, it is only necessary to directly connect the upper cover to the crossbeam on the whole vehicle through a connecting piece, thereby making full use of the space of the whole vehicle. At the same time, since the upper cover is directly in contact with the crossbeam, the ground clearance of the box body can be improved.

[0010] Moreover, since the upper cover itself has high strength, deformation can be avoided, and there will be no interference friction between the upper cover and the cross beam. At this time, there is no need to set a gap between the upper cover and the cross beam. Therefore, there is no need to lower the height space of the box body to avoid reducing the content of the battery cell group in the box, thereby ensuring the power of the entire battery device.

[0011] In some embodiments, a protrusion is provided on a side of the upper cover away from the box body, and the protrusion is formed by a metal layer and / or an alloy layer;

[0012] The connection hole is arranged on the protrusion. In this way, the depth of the connection hole can be increased, and when the connection piece passes through the crossbeam on the vehicle and extends into the corresponding connection hole, the portion of the connection piece extending into the connection hole can be lengthened, thereby improving the connection effect between the connection piece and the upper cover.

[0013] In some embodiments, a plurality of protrusions are evenly distributed on a side of the upper cover facing away from the box body, and at least two of the connection holes are evenly arranged on each of the protrusions.

[0014] In some embodiments, the battery device further comprises an abutment portion, which is arranged on the side of the box body facing the longitudinal beam. In this way, when the battery device is installed on the integral cross beam, the abutment portion on the box body abuts against the longitudinal beam, thereby preventing the box body from shaking.

[0015] In some embodiments, the thickness of the abutting portion is adjustable, so that the thickness of the abutting portion can be easily adjusted so that the abutting portion can abut against the longitudinal beam.

[0016] In some embodiments, the abutment portion includes a first fixing plate and a second fixing plate sequentially connected along the thickness direction, and a side of the second fixing plate away from the first fixing plate is arranged on a side of the box body facing the longitudinal beam;

[0017] The first fixing plate is clamped to the side of the second fixing plate away from the box body. In this way, the thickness of the abutting portion can be conveniently adjusted by clamping or disassembling the corresponding first fixing plate or second fixing plate.

[0018] In some embodiments, the abutment portion is detachably connected to a side of the box body facing the longitudinal beam, so that it is convenient to disassemble and assemble the abutment portion from the box body.

[0019] In some embodiments, a first hook and / or a first hanging hole is provided on one side of the box body facing the longitudinal beam, so that the box body can be easily mounted on the longitudinal beam to improve the stability of the connection of the entire battery device.

[0020] In a second aspect, the present application proposes an electrical device, including a beam body, a connecting member, and a battery device as described in any one of the embodiments of the present application;

[0021] The beam body comprises a pair of longitudinal beams arranged at intervals and a cross beam arranged between the pair of longitudinal beams; the box body is arranged between the pair of longitudinal beams, and the connecting piece passes through the cross beam and cooperates with the connecting hole;

[0022] The abutting portion on the box body abuts against the longitudinal beam.

[0023] In the technical solution of the embodiment of the present application, when the battery device needs to be installed on the beam body, it is only necessary to directly connect the upper cover and the cross beam through a connecting piece, so that the beam body space can be fully utilized. At the same time, since the upper cover is directly in contact with the cross beam, the ground clearance of the box body can be increased.

[0024] Furthermore, since the abutting portion on the box body abuts against the longitudinal beam, shaking of the box body can be avoided.

[0025] In some embodiments, the electrical device further comprises a flexible pad, and the flexible pad is arranged between the cross beam and the upper cover. In this way, it is possible to prevent the cross beam from damaging the upper cover due to friction after being connected to the upper cover.

[0026] In some embodiments, the electrical device further comprises an elastic pad disposed between the abutment portion and the longitudinal beam. Thus, when the abutment portion abuts the longitudinal beam, the elastic pad is compressed and closely attached to the abutment portion and the longitudinal beam, thereby avoiding a gap between the abutment portion and the longitudinal beam.

[0027] In some embodiments, the longitudinal beam is provided with a second hanging hole and / or a second hook;

[0028] The second hanging hole cooperates with the first hook on the box, and / or the second hook cooperates with the first hanging hole on the box. In this way, the box can be stably connected to the longitudinal beam to improve the stability of the connection between the battery device and the longitudinal beam.

[0029] 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

[0030] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the embodiments below. The accompanying drawings are only for the purpose of illustrating the embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0031] Figure 1 A schematic diagram of the structure of an electric device provided in some embodiments of the present application;

[0032] Figure 2 A schematic diagram of the structure of a battery provided in some embodiments of the present application;

[0033] Figure 3 A schematic diagram of the structure of a battery cell provided in some embodiments of the present application;

[0034] Figure 4 A schematic diagram of the structure of a battery device provided in some embodiments of the present application;

[0035] Figure 5 for Figure 4 The enlarged schematic diagram at A in the middle;

[0036] Figure 6 A schematic diagram of an abutment portion provided in some embodiments of the present application;

[0037] Figure 7 for Figure 4 A top view of

[0038] Figure 8 for Figure 7 The enlarged schematic diagram of point B in FIG.

[0039] Fig. 9 for Figure 7 sectional view of .

[0040] The reference numerals in the specific implementation manner are as follows:

[0041] 1000. Vehicles;

[0042] 100, battery; 200, controller; 300, motor;

[0043] 110, box body; 111, first part; 112, second part; 120, battery cell; 121, housing; 122, end cover; 123, electrode assembly;

[0044] 10. Beam body; 101. Longitudinal beam; 102. Cross beam; 11. Connector; 12. Box body; 13. Upper cover; 131. Protrusion; 14. Flexible pad; 15. Abutment portion; 151. First fixing plate; 1511. First groove; 1512. Second protrusion; 152. Second fixing plate; 1521. First protrusion; 1522. Second groove. DETAILED DESCRIPTION

[0045] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. 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.

[0046] 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.

[0047] 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, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0048] 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.

[0049] 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.

[0050] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0051] 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.

[0052] 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.

[0053] Compared with traditional cars, electric cars not only get rid of dependence on oil, but also have the advantages of not emitting polluting gases when in use, thus protecting the urban environment.

[0054] In the related art, the battery pack of electric vehicles uses a composite material upper cover, with mounting holes set on both sides of the box body, which are connected and locked with the beams on both sides of the vehicle. In this way, it is necessary to ensure that there is a gap between the connecting beams between the battery pack upper cover and the vehicle beams to ensure that the upper cover does not bulge and deform during low-temperature charging or rapid altitude rise, and does not interfere with the vehicle beams.

[0055] However, this will result in a reduction in the ground clearance of the bottom of the battery pack, increasing the risk of scratching the bottom of the battery pack during driving; at the same time, the reserved gap will cause the height space of the battery pack to be reduced, thereby reducing the overall power of the battery pack.

[0056] Based on the above considerations, in order to solve the problem that after the battery pack is installed, the gap between the battery pack and the ground is small, a battery device is designed, which includes a box body, an upper cover and a battery cell group, wherein the upper cover and the box body cover each other to form a accommodating space; a metal layer is provided on the side of the upper cover facing away from the box body, and / or an alloy layer is provided on the side of the upper cover facing away from the box body, and a connecting hole is provided on the side of the upper cover facing away from the box body; the battery cell group is accommodated in the accommodating space.

[0057] In the technical solution of the embodiment of the present application, since a metal layer and / or an alloy layer is provided on the upper cover, the overall strength of the upper cover can be improved. Since a connecting hole is provided on the side of the upper cover facing away from the box body, at this time, under the condition that the overall strength of the upper cover is ensured, since the crossbeam on the whole vehicle itself is also made of metal, when the battery device needs to be installed on the beam of the whole vehicle, it is only necessary to directly connect the upper cover to the crossbeam on the whole vehicle through a connecting piece, thereby making full use of the space of the whole vehicle. At the same time, since the upper cover is directly in contact with the crossbeam, the ground clearance of the box body can be improved.

[0058] Moreover, since the upper cover itself has high strength, deformation can be avoided, and there will be no interference friction between the upper cover and the cross beam. At this time, there is no need to set a gap between the upper cover and the cross beam. Therefore, there is no need to lower the height space of the box body to avoid reducing the content of the battery cell group in the box, thereby ensuring the power of the entire battery device.

[0059] The battery in this application refers to a single physical module that includes one or more battery cells to provide higher voltage and capacity. For example, the battery mentioned in this application may include a battery pack, etc. The battery can be used as a power source or power system for an electrical device, which is conducive to improving the overall performance of the battery and facilitating the promotion of the battery.

[0060] The above-mentioned electrical devices may be, but are not limited to, mobile phones, tablets, laptop computers, electric toys, electric tools, battery cars, electric cars, ships, spacecraft, etc. Among them, electric toys may include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc., and spacecraft may include airplanes, rockets, space shuttles, and spacecraft, etc.

[0061] For the convenience of description, the following embodiments are described by taking a vehicle 1000 as an example of an electrical device according to an embodiment of the present application.

[0062] Please refer to Figure 1 , Figure 1 A schematic diagram of the structure of a vehicle 1000 provided for some embodiments of the present application. 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 100 is provided inside the vehicle 1000, and the battery 100 may be provided at the bottom, head or tail of the vehicle 1000. The battery 100 may be used to power the vehicle 1000, for example, the battery 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 100 to power the motor 300, for example, for starting, navigating and driving the vehicle 1000.

[0063] In some embodiments of the present application, the battery 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.

[0064] Please refer to Figure 2 , Figure 2An exploded view of a battery 100 provided in some embodiments of the present application. The battery 100 includes a box member 110 and a battery cell 120, and the battery cell 120 is contained in the box member 110. Among them, the box member 110 is used to provide a storage space for the battery cell 120, and the box member 110 can adopt a variety of structures. In some embodiments, the box member 110 may include a first part 111 and a second part 112, and the first part 111 and the second part 112 cover each other, and the first part 111 and the second part 112 jointly define a storage space for accommodating the battery cell 120. The second part 112 may be a hollow structure with one end open, and the first part 111 may be a plate-like structure, and the first part 111 covers the open side of the second part 112, so that the first part 111 and the second part 112 jointly define a storage space; the first part 111 and the second part 112 may also be hollow structures with one side open, and the open side of the first part 111 covers the open side of the second part 112. Of course, the box member 110 formed by the first part 111 and the second part 112 can be in various shapes, such as a cylinder, a cuboid, etc.

[0065] In the battery 100, there may be multiple battery cells 120, and the multiple battery cells 120 may be connected in series, in parallel, or in a mixed connection. A mixed connection means that the multiple battery cells 120 are both connected in series and in parallel. The multiple battery cells 120 may be directly connected in series, in parallel, or in a mixed connection, and then the whole formed by the multiple battery cells 120 is accommodated in the box 110; of course, the battery 100 may also be a battery module formed by connecting multiple battery cells 120 in series, in parallel, or in a mixed connection, and then the multiple battery modules are connected in series, in parallel, or in a mixed connection to form a whole, and accommodated in the box 110. The battery 100 may also include other structures, for example, the battery 100 may also include a busbar component for realizing electrical connection between the multiple battery cells 120.

[0066] Each battery cell 120 may be a secondary battery or a primary battery, or a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 120 may be cylindrical, flat, rectangular, or in other shapes.

[0067] like Figure 3 As shown, the battery cell 120 may include a housing, an electrode assembly 123 and an electrode terminal. The housing includes a shell 121 and an end cap 122. The shell 121 has an opening, and the end cap 122 closes the opening to isolate the internal environment of the battery cell 120 from the external environment.

[0068] The shell 121 is a component used to cooperate with the end cap 122 to form the internal environment of the battery cell 120, wherein the formed internal environment can be used to accommodate the electrode assembly 123, the electrolyte and other components. The shell 121 and the end cap 122 can be independent components. The shell 121 can be of various shapes and sizes. Specifically, the shape of the shell 121 can be determined according to the specific shape and size of the electrode assembly 123. The material of the shell 121 can be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc.

[0069] The end cap 122 refers to a component that covers the opening of the shell 121 to isolate the internal environment of the battery cell 120 from the external environment. Without limitation, the shape of the end cap 122 can be adapted to the shape of the shell 121 to match the shell 121. Optionally, the end cap 122 can be made of a material with a certain hardness and strength (such as aluminum alloy), so that the end cap 122 is not easily deformed when squeezed and collided, so that the battery cell 120 can have a higher structural strength and reliability can also be improved. Functional components such as electrode terminals can be provided on the end cap 122. The electrode terminal can be used to electrically connect to the electrode assembly 123 for outputting or inputting electrical energy of the battery cell 120. The material of the end cap 122 can also be a variety of materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and the embodiments of the present application do not impose any special restrictions on this. In some embodiments, an insulating structure may be provided inside the end cap 122, and the insulating structure may be used to isolate the electrical connection components in the housing 121 from the end cap 122 to reduce the risk of short circuit. For example, the insulating structure may be plastic, rubber, or the like.

[0070] The electrode assembly 123 is a component in the battery cell 120 where an electrochemical reaction occurs. One or more electrode assemblies 123 may be included in the housing 121. The electrode assembly 123 is mainly formed by winding or stacking the positive electrode sheet and the negative electrode sheet, and a separator is usually provided between the positive electrode sheet and the negative electrode sheet, and the separator is used to separate the positive electrode sheet and the negative electrode sheet to avoid short circuits between the positive electrode sheet and the negative electrode sheet. The parts of the positive electrode sheet and the negative electrode sheet with active materials constitute the main body of the electrode assembly 123, and the parts of the positive electrode sheet and the negative electrode sheet without active materials each constitute the pole ear. The positive pole ear and the negative pole ear may be located at one end of the main body or at both ends of the main body respectively. During the charge and discharge process of the battery 100, the positive active material and the negative active material react with the electrolyte, and the pole ear connects the electrode terminal to form a current loop. In addition, the electrode assembly 123 may be a winding structure or a laminated structure.

[0071] In some embodiments, the battery cell 120 may also be provided with a pressure relief mechanism for releasing the internal pressure when the internal pressure or temperature of the battery cell 120 reaches a threshold value.

[0072] According to some embodiments of the present application, Figure 4 is a schematic diagram of the structure of the battery device in this application, Figure 5 for Figure 4 The enlarged schematic diagram of point A in the middle. Figure 4 and Figure 5 As shown, the present application provides a battery device, which includes a box body 12, an upper cover 13 and a battery cell group (not marked in the figure), wherein the upper cover 13 and the box body 12 cover each other to form a accommodating space; a metal layer is provided on the side of the upper cover 13 facing away from the box body 12, and / or an alloy layer is provided on the side of the upper cover 13 facing away from the box body 12, and a connecting hole (not marked in the figure) is provided on the side of the upper cover 13 facing away from the box body 12; the battery cell group is accommodated in the accommodating space.

[0073] In this embodiment, the side of the box body 12 facing the upper cover 13 is an open structure, and the upper cover 13 can be connected to the open side of the box body 12 by bolts, buckles, etc. The box body 12 can be square, round, etc., and the specific shape can be determined according to actual conditions, and this embodiment of the specification does not limit this.

[0074] In this embodiment, the upper cover 13 as a whole can be formed by a metal layer and / or an alloy layer, wherein the metal layer can be an aluminum layer, a steel layer, etc., and the alloy layer can be an aluminum alloy, a magnesium alloy, etc. The specific ones can be determined according to actual conditions, and the embodiments of this specification do not limit this.

[0075] In this embodiment, a metal layer may be provided on the side of the upper cover 13 facing away from the box body 12, or an alloy layer may be provided on the side of the upper cover 13 facing away from the box body 12. In the latter case, a metal layer and an alloy layer may be provided on the side of the upper cover 13 facing away from the box body 12. For the convenience of description, the following description will be given by taking the case where a metal layer is provided on the side of the upper cover 13 facing away from the box body 12 as an example.

[0076] During installation, since a metal layer and / or alloy layer is provided on the upper cover 13, the overall strength of the upper cover 13 can be improved. Since a connecting hole is provided on the side of the upper cover 13 facing away from the box body 12, under the condition that the overall strength of the upper cover 13 is ensured, since the cross beam 102 on the beam body 10 itself is also made of metal, when the battery device needs to be installed on the beam body 10, it is only necessary to directly connect the upper cover 13 to the cross beam 102 on the beam body 10 through the connecting piece 11, so that the space of the entire vehicle can be fully utilized. At the same time, since the upper cover 13 is directly in contact with the cross beam 102 and connected, the ground clearance of the box body 12 can be improved.

[0077] Moreover, since the upper cover 13 itself has high strength, deformation can be avoided, and no interference friction will occur between the upper cover 13 and the cross beam 102. At this time, there is no need to set a gap between the upper cover 13 and the cross beam 102. Therefore, there is no need to lower the height space of the box body 12 to avoid reducing the content of the battery cell group in the box body 12, thereby ensuring the power of the entire battery device.

[0078] According to some embodiments of the present application, Figure 7 Combined with Figure 8 , Fig. 9 As shown, a protrusion 131 is provided on the side of the upper cover 13 facing away from the box body 12 , and the protrusion 131 is formed by a metal layer and / or an alloy layer; wherein the connection hole is provided on the protrusion 131 .

[0079] refer to Fig. 9 As shown, the protrusion 131 in this embodiment is integrally formed with the upper cover 13. The protrusion 131 can be formed by a metal layer, an alloy layer, etc. The specific details can be determined according to actual conditions, and this specification embodiment does not limit this.

[0080] Since the protrusion 131 itself is high and a connecting hole is formed on the protrusion 131, the overall depth of the connecting hole can be increased. When the connecting member 11 passes through the beam 102 and extends into the connecting hole, while the overall depth of the connecting hole increases, the portion of the connecting member 11 extending into the connecting hole also becomes longer accordingly. At this time, better support can be provided, reducing the risk of loosening due to vibration or other dynamic loads, thereby improving the stability of the overall connection.

[0081] According to some embodiments of the present application, a plurality of protrusions 131 are evenly distributed on a side of the upper cover 13 facing away from the box body 12 , and at least two connection holes are evenly arranged on each protrusion 131 .

[0082] Since the protrusions 131 are evenly distributed on the upper cover 13, and the connecting holes are evenly distributed on the protrusions 131, when the connecting members 11 pass through the corresponding cross beams 102 and extend into the corresponding connecting holes, each connecting member 11 is subjected to uniform force, thereby avoiding unstable connection caused by excessive or insufficient force on individual connecting members 11, thereby improving the stability and safety of the overall connection.

[0083] According to some embodiments of the present application, Figure 5 Combined with Figure 6 As shown, the battery device further includes an abutment portion 15 , which is disposed on a side of the box body 12 facing the longitudinal beam.

[0084] The abutment portion 15 in this embodiment can be integrally formed with the box body 12, or the abutment portion 15 is connected to the side of the box body 12 facing the longitudinal beam by bolts. The specific details can be determined according to actual conditions, and this embodiment of the specification does not limit this.

[0085] During installation, refer to Figure 5 As shown, when the battery device is installed on the crossbeam 102 , the abutting portion 15 on the box body 12 abuts against the longitudinal beam 101 . At this time, there is no gap between the box body 12 and the longitudinal beam 101 , thereby preventing the box body 12 from shaking relative to the longitudinal beam 101 .

[0086] According to some embodiments of the present application, the thickness of the abutting portion 15 is adjustable.

[0087] The abutting portion 15 in this embodiment can be a plurality of plates bonded together, or a plurality of plates clamped together, and the specific details can be determined according to actual conditions, and this embodiment of the specification does not limit this.

[0088] In this embodiment, since the distance between the box body 12 and the longitudinal beam 101 is uncertain, during installation, the thickness of the abutment portion 15 is adjusted so that the abutment portion 15 can adapt to the distance between the box body 12 and the longitudinal beam 101, thereby ensuring that the abutment portion 15 can abut against the longitudinal beam 101 and preventing the box body 12 from shaking relative to the longitudinal beam 101.

[0089] According to some embodiments of the present application, Figure 6 As shown, the abutment portion 15 includes a first fixing plate 151 and a second fixing plate 152 connected in sequence along the thickness direction, and the side of the second fixing plate 152 away from the first fixing plate 151 is arranged on the side of the box body 12 facing the longitudinal beam; wherein the first fixing plate 151 is clamped to the side of the second fixing plate 152 away from the box body 12.

[0090] The abutment portion 15 in this embodiment may include a plurality of first fixing plates 151 and a plurality of second fixing plates 152, each first fixing plate 151 being provided with a first groove 1511 and a second protrusion 1512 on both sides along the thickness direction, and each second fixing plate 152 being provided with a first protrusion 1521 and a second groove 1522 on both sides along the thickness direction, wherein the first groove 1511 cooperates with the first protrusion 1521, and the second protrusion 1512 cooperates with the second groove 1522.

[0091] The side of the second fixing plate 152 away from the first fixing plate 151 can be connected to the side of the box body 12 facing the longitudinal beam by bolts, and then the first groove 1511 on the first fixing plate 151 is correspondingly inserted into the second protrusion 1512, and so on, so that the overall thickness of the abutting portion 15 can be conveniently adjusted.

[0092] It should be noted that the structure of the abutment portion is only an example, and other structures may be used in other alternative solutions, for example, the abutment portion includes a plurality of plates adsorbed by magnetic force, etc. The present application does not impose any special restrictions on the specific structure of the abutment portion, as long as the above structure can achieve the purpose of the present application.

[0093] According to some embodiments of the present application, the abutting portion 15 is detachably connected to a side of the box body 12 facing the longitudinal beam.

[0094] The abutment portion 15 in this embodiment can be connected to the side of the box body 12 facing the longitudinal beam 101 by means of bolts, clamping, etc. In this way, it is convenient to disassemble and assemble the abutment portion 15 from the box body 12.

[0095] According to some embodiments of the present application, a first hook and / or a first hanging hole (not marked in the figure) is provided on one side of the box body 12 facing the longitudinal beam.

[0096] In this embodiment, a first hook may be provided on the side of the box body 12 facing the longitudinal beam 101, or a first hanging hole may be provided on the side of the box body 12 facing the longitudinal beam 101. In the latter case, a first hook and a first hanging hole may be provided on the side of the box body 12 facing the longitudinal beam 101. For the convenience of description, the following description will be based on the example of providing the first hook on the side of the box body 12 facing the longitudinal beam 101.

[0097] After the box body 12 is installed on the beam body 10, it is connected to the longitudinal beam 101 through the first hook, so that the box body 12 can be stably connected to the beam body 10, thereby improving the stability of the connection of the entire battery device.

[0098] The present application also provides an electrical device, such as Figure 4 As shown, the electrical device includes a beam body 10, a connecting member 11 and a battery device as any one of the embodiments of the present application, wherein the beam body 10 includes a pair of longitudinal beams 101 arranged at intervals and a cross beam 102 arranged between the pair of longitudinal beams; the box body 12 is arranged between the pair of longitudinal beams 101, and the connecting member 11 passes through the cross beam 102 and cooperates with the connecting hole; the abutment portion 15 on the box body 12 abuts against the longitudinal beam 101.

[0099] The specific structure of the battery device in this embodiment refers to the above embodiment and will not be described again here.

[0100] The cross beam 102 in this embodiment may be connected between a pair of longitudinal beams 101 by means of bolts, welding, etc. The specific method may be determined according to actual conditions, and this embodiment of the specification does not limit this.

[0101] In this embodiment, the connecting member 11 can be a hexagon head bolt, a round head bolt, a high-strength bolt, etc. The specific one can be determined according to actual conditions, and this embodiment of the specification does not limit this.

[0102] In the technical solution of the embodiment of the present application, when the battery device needs to be installed on the beam body 10, it is only necessary to directly connect the upper cover 13 and the cross beam 102 through the connecting member 11, so that the space of the beam body 10 can be fully utilized. At the same time, since the upper cover 13 is directly in contact with the cross beam 102, the ground clearance of the box body 12 can be increased.

[0103] Furthermore, since the abutting portion 15 on the box body 12 abuts against the longitudinal beam 101 , the box body 12 can be prevented from shaking.

[0104] According to some embodiments of the present application, Figure 5 As shown, the electrical device further includes a flexible pad 14 , which is disposed between the crossbeam 102 and the upper cover 13 .

[0105] The flexible pad 14 in this embodiment can be a rubber pad, a plastic pad, etc. The specific one can be determined according to actual conditions, and this embodiment of the specification does not limit this.

[0106] In this embodiment, since the flexible pad 14 is disposed between the cross beam 102 and the upper cover 13 , it is possible to prevent the cross beam 102 from damaging the upper cover 13 due to friction after being connected to the upper cover 13 .

[0107] According to some embodiments of the present application, the electrical device further includes an elastic pad (not shown in the figure), wherein the elastic pad is disposed between the abutment portion 15 and the longitudinal beam 101 .

[0108] The elastic pad in this embodiment can be a rubber pad, a silicone pad, etc. The specific one can be determined according to actual conditions, and the embodiments of this specification do not limit this.

[0109] In this embodiment, when the abutting portion 15 abuts against the longitudinal beam 101 , the elastic pad is compressed and closely adheres to the abutting portion 15 and the longitudinal beam 101 , thereby avoiding a gap between the abutting portion 15 and the longitudinal beam 101 and further avoiding the abutting portion 15 from shaking relative to the longitudinal beam 101 .

[0110] According to some embodiments of the present application, a second hanging hole and / or a second hook is provided on the longitudinal beam 101; wherein the second hanging hole cooperates with the first hook on the box body 12, and / or the second hook cooperates with the first hanging hole on the box body 12.

[0111] In this embodiment, a second hanging hole may be provided on the longitudinal beam 101, or a second hook may be provided on the longitudinal beam 101, or a second hanging hole and a second hook may be provided on the longitudinal beam 101. For the convenience of description, the following description will take the case where the second hanging hole is provided on the longitudinal beam 101 as an example.

[0112] During installation, after the box body 12 is installed on the beam body 10, the first hanging hole on the box body 12 is connected to the second hook on the beam body 10, and the first hook on the box body 12 is connected to the second hanging hole on the beam body 10. In this way, the box body 12 can be stably connected to the longitudinal beam 101 to improve the stability of the connection between the battery device and the longitudinal beam 101.

[0113] 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: include: Box; An upper cover, wherein the upper cover and the box body cover each other to form a containing space; A metal layer is provided on a side of the upper cover away from the box body, and / or an alloy layer is provided on a side of the upper cover away from the box body, and a connection hole is provided on a side of the upper cover away from the box body; The battery cell group is accommodated in the accommodation space.

2. The battery device according to claim 1, characterized in that: A protrusion is provided on the side of the upper cover facing away from the box body, and the protrusion is formed by a metal layer and / or an alloy layer; The connecting hole is arranged on the protrusion.

3. The battery device according to claim 2, characterized in that: A plurality of protrusions are evenly distributed on a side of the upper cover away from the box body, and at least two connecting holes are evenly arranged on each of the protrusions.

4. The battery device according to any one of claims 1 to 3, characterized in that: The battery device further includes an abutment portion, which is arranged on a side of the box body facing the longitudinal beam.

5. The battery device according to claim 4, characterized in that: The thickness of the abutting portion is adjustable.

6. The battery device according to claim 5, characterized in that: The abutment portion includes a first fixing plate and a second fixing plate connected in sequence along the thickness direction, and a side of the second fixing plate away from the first fixing plate is arranged on a side of the box body facing the longitudinal beam; The first fixing plate is clamped on a side of the second fixing plate facing away from the box body.

7. The battery device according to claim 4, characterized in that: The abutting portion is detachably connected to a side of the box body facing the longitudinal beam.

8. The battery device according to claim 1, characterized in that: A first hook and / or a first hanging hole is arranged on one side of the box body facing the longitudinal beam.

9. An electrical device, characterized in that: It comprises a beam body, a connecting member and a battery device as claimed in any one of claims 1 to 8; The beam body comprises a pair of longitudinal beams arranged at intervals and a cross beam arranged between the pair of longitudinal beams; the box body is arranged between the pair of longitudinal beams, and the connecting piece passes through the cross beam and cooperates with the connecting hole; The abutting portion on the box body abuts against the longitudinal beam.

10. The electrical device according to claim 9, characterized in that: The electrical device further comprises a flexible pad, and the flexible pad is arranged between the crossbeam and the upper cover.

11. The electrical device according to claim 9, characterized in that: The electrical device further includes an elastic pad, which is arranged between the abutting portion and the longitudinal beam.

12. The electrical device according to claim 9, characterized in that: The longitudinal beam is provided with a second hanging hole and / or a second hook; The second hanging hole cooperates with the first hook on the box body, and / or the second hook cooperates with the first hanging hole on the box body.

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