Battery device and power utilization device

Abstract

The invention discloses a battery device and a power utilization device.The battery device comprises a battery single body, at least two conductive parts and a switching assembly, and the conductive parts are electrically connected to the battery single body; the switching assembly comprises a main body, at least two switching bodies and a fixing body, the switching bodies are connected to the main body, each switching body is provided with a connecting face used for being connected with a conductive part, the connecting faces are electrically connected with the conductive parts, planes where the connecting faces of the at least two switching bodies are located intersect, and the fixing body is connected to the main body and provided with an insulating part. The main body is insulated and fixed with a target position through the fixing body. By applying the technical scheme provided by the invention, the switching flexibility and reliability of the conductive piece can be improved.

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] As the energy storage system of new energy vehicles, the battery device needs to use conductive parts to connect the current. In order to ensure the energy density of the battery device, the space reserved for the conductive parts inside the battery device is limited. In the related art, the flexibility and reliability of the connection between conductive parts are poor, which cannot meet the application requirements of the battery device. Summary of the invention

[0003] The present application provides a battery device and an electrical device, which can improve the flexibility and reliability of conductive component switching.

[0004] The present application provides a battery device, which includes a battery cell, a conductive member and an adapter assembly, wherein there are at least two conductive members, which are electrically connected to the battery cell; the adapter assembly includes a main body, an adapter body and a fixed body, wherein there are at least two adapter bodies, which are connected to the main body, and the adapter body has a connecting surface, which is electrically connected to the conductive member, and the planes where the connecting surfaces of at least two adapter bodies are located intersect, and the fixed body is connected to the main body, and the fixed body has an insulating portion, and the main body is insulated and fixed to a target position through the fixed body.

[0005] In the technical solution provided by the present application, the battery device includes a battery cell, a conductive member and an adapter assembly, wherein the battery cell is the basic component unit of the battery device, and its function is to provide electrical energy to the external circuit; there are at least two conductive members, and the conductive members are electrically connected to the battery cell, and their function is to connect the internal circuit of the battery device so that the battery device can work normally; the adapter assembly includes a main body, an adapter body and a fixed body, wherein the adapter body has a connection surface for connecting the conductive member, and the number of adapter bodies is at least two, and each adapter body is connected through the main body adapter. The planes where the connection surfaces of at least two adapter bodies are located intersect, that is, the planes where the connection surfaces of at least two adapter bodies are located are not parallel. In this way, on the one hand, the planes where the connection surfaces of at least two adapters are located intersect, so that the connection surfaces of different adapters can be set at an angle, and the connection surfaces set at an angle can be connected to different conductive parts respectively to achieve the steering between the conductive parts, so that the conductive parts can achieve a large angle steering without bending, twisting or only bending and twisting at a small angle; on the other hand, when the connection surfaces set at an angle are connected to the conductive parts, they can provide different angles of support for the conductive parts, which helps to improve the stability of the connection between the adapter and the conductive parts. The fixed body is connected to the main body, and the fixed body has an insulating part to be insulated and fixed to the target position. In this way, on the one hand, the fixed body can provide a supporting force for the main body, and the supporting force can be transmitted to the conductive part through the adapter to overcome the bending or sagging of the conductive part under the action of its own weight or external force, thereby improving the stability of the long span arrangement of the conductive part; on the other hand, the main body can adjust its own position through the fixed body to improve the flexibility of the arrangement of the adapter assembly. In addition, during the application of the adapter assembly, the heat generated by the current passing through the main body can also be dissipated through the fixed body, which helps to improve the heat dissipation efficiency of the adapter assembly.

[0006] In some embodiments of the present application, planes where connecting surfaces of at least two adapters are located are perpendicular to each other.

[0007] In some embodiments of the present application, the main body extends along a first plane, and a plane where a connecting surface of at least one adapter body is located intersects with the first plane.

[0008] In some embodiments of the present application, the adapter includes at least a first adapter and a second adapter, the plane where the connecting surface of the first adapter is located is the second plane, the plane where the connecting surface of the second adapter is located is the third plane, the second plane and the third plane intersect, and the first plane intersects at least the second plane or the third plane.

[0009] In some embodiments of the present application, the first plane, the second plane, and the third plane are perpendicular to each other.

[0010] In some embodiments of the present application, the first plane is perpendicular to the second plane, and the first plane is parallel to the third plane.

[0011] In some embodiments of the present application, the main body has a first connecting side and a second connecting side, the first adapter is connected to the first connecting side, the second adapter is connected to the second connecting side, and the angle between the first connecting side and the second connecting side is less than or equal to the angle between the second plane and the third plane.

[0012] In some embodiments of the present application, the material of the connection surface of the first adapter is different from the material of the connection surface of the second adapter.

[0013] In some embodiments of the present application, the material of the first adapter body is different from the material of the second adapter body, and the material of one of the first adapter body and the second adapter body is the same as the material of the main body.

[0014] In some embodiments of the present application, the material of the first adapter is the same as that of the main body, the first adapter is integrally connected to the main body, and the second adapter is separately connected to the main body.

[0015] In some embodiments of the present application, the main body extends along a first plane, and an extension direction of the fixing body is perpendicular to the first plane.

[0016] In some embodiments of the present application, one end of the fixed body is connected to the main body, and the insulating part is located at the other end of the fixed body.

[0017] In some embodiments of the present application, the fixed body is connected to the main body via a fastener; or, the fixed body further has a welding portion connected to the insulating portion, and the welding portion is connected to the main body by welding.

[0018] In some embodiments of the present application, each adapter body includes an adapter block and a connecting surface arranged on at least one side of the adapter block, and each adapter body is connected to the main body through the adapter block.

[0019] In some embodiments of the present application, the extension direction of the adapter block is parallel to the plane where the connecting surface is located.

[0020] In some embodiments of the present application, the extension direction of the adapter block is perpendicular to the extension direction of the main body, and along the extension direction of the adapter block, one side of the main body facing the adapter block is connected to the end of the adapter block. In some embodiments of the present application, the adapter block has a first end and a second end disposed opposite to each other, at least one arc segment is formed between the first end and the second end, and one of the first end and the second end is connected to the main body.

[0021] In some embodiments of the present application, the extension direction of the adapter block is perpendicular to the extension direction of the main body. Along the extension direction of the main body, the side of the adapter block facing the main body is connected to the main body, and the side of the adapter block facing away from the main body forms a connecting surface. Along the extension direction of the adapter block, the opposite sides of the adapter block are respectively protruded from the corresponding sides of the main body.

[0022] In some embodiments of the present application, the adapter block includes a first section, a second section and a third section, the first section is connected to the main body, the connecting surface is formed on the second section, the third section is a bending section, and one end of the third section is connected to the first section, and the other end of the third section is connected to the second section.

[0023] In some embodiments of the present application, the main body includes a connecting portion, and the adapter is connected to the main body via the connecting portion.

[0024] In some embodiments of the present application, the extension direction of the connecting portion is perpendicular to the extension direction of the fixing body, and along the extension direction of the connecting portion, one end of the connecting portion facing away from the fixing body is connected to the adapter body.

[0025] In some embodiments of the present application, the battery device further includes a box and a fixing bracket disposed in the box, the fixing bracket is located at a target position, and a target distance is formed between the fixing bracket and an inner wall of the box, and the main body is insulated and fixed to the fixing bracket.

[0026] A second aspect of the present application provides an electrical device, comprising the electrical device and the battery device of the first aspect, wherein the battery device is electrically connected to the electrical device.

[0027] In the technical solution of the embodiment of the present application, since the power-consuming device includes the battery device of the first aspect, the same technical effect is achieved, that is, the flexibility and reliability of the conductive member switching can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred 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: Figure 1 A schematic diagram of the structure of the connection between the adapter assembly and the conductive member provided in an embodiment of the present application (first example); Figure 2 A schematic diagram of a structure of connecting a switching assembly and a conductive member provided in an embodiment of the present application (a second example); Figure 3 A schematic diagram of the structure of the connection between the adapter assembly and the conductive member provided in an embodiment of the present application (third example); Figure 4 A schematic diagram of a structure of connecting a switching assembly and a conductive member provided in an embodiment of the present application (a fourth example); Figure 5 A schematic diagram of a structure of connecting a switching assembly and a conductive member provided in an embodiment of the present application (fifth example); Figure 6A schematic diagram of a structure of connecting a transfer assembly and a conductive member provided in an embodiment of the present application (sixth example); Figure 7 A schematic diagram of the structure of a transfer block on a transfer assembly provided in an embodiment of the present application (first example); Figure 8 A schematic diagram of the structure of a transfer block on a transfer assembly provided in an embodiment of the present application (second example); Fig. 9 A schematic diagram of the structure of a transfer block on a transfer assembly provided in an embodiment of the present application (third example); Fig.10 A schematic diagram of the structure of a transfer block on a transfer assembly provided in an embodiment of the present application (fourth example); Fig.11 A schematic diagram of the structure of a transfer block on a transfer assembly provided in an embodiment of the present application (fifth example); Fig.12 A schematic diagram of the structure of a battery device provided in an embodiment of the present application; Fig.13 for Fig.10 Enlarged view of point A in the middle.

[0029] Description of reference numerals: 1-housing; 2-adapter assembly; 21-main body; 211-first plane; 212-connecting part; 22-adapter body; 22a-first adaptor body; 22a1-second plane; 22b-second adaptor body; 22b1-third plane; 221-adapter block; 2211-connecting surface; 2212-arc segment; 2213-first segment; 2214-second segment; 2215-third segment; 23-fixed body; 231-insulating part; 232-welding part; 3-conductive member; 3a-first conductive member; 3b-second conductive member; 4-fastener; 5-fixed bracket. DETAILED DESCRIPTION

[0030] 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.

[0031] 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 of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions.

[0032] In the description of the embodiments of the present application, the technical terms "first", "second", "third", 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.

[0033] 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.

[0034] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. 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.

[0035] In the description of the embodiments of the present application, the orientation or position relationship indicated by technical terms such as "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the accompanying drawings. They 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, operated or used in a specific orientation. Therefore, they should not be understood as limitations on the embodiments of the present application.

[0036] 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.

[0037] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the technical term "contact" should be understood in a broad sense, and may be direct contact or contact through an intermediate medium layer. It may be contact with essentially no interaction force between the two contacting parties, or it may be contact with interaction force between the two contacting parties.

[0038] Below, this application is described in detail.

[0039] In the embodiments of the present application, for the convenience of describing the direction, refer to Figures 7 to 11 There are directions in the diagram, wherein the first direction is the extension direction of the main body 21, and the second direction is the extension direction of the fixing body 23. It should be noted that the direction marking is only used to describe the present application, but is not used to limit the scope of the present application.

[0040] Battery devices are increasingly used in life and industry. Battery devices are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but are also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, and aerospace and other fields. With the continuous expansion of the application field of battery devices, the market demand is also constantly expanding.

[0041] As the energy storage system of new energy vehicles, the battery device needs to be connected to the current through a conductive member. In order to ensure the energy density of the battery device, the space reserved for the conductive member 3 to be transferred inside the battery device is limited. In the related art, due to the limitation of the internal space of the battery device, the battery cells may be arranged in an irregular manner in the battery device. In order to adapt to the spatial layout, the battery cells or the battery cells and other modules (such as thermal management modules, battery management modules, etc.) need to be transferred at a large angle through conductive members. In the related art, the conductive member needs to have high flexibility to adapt to the large transfer angle through large-angle bending or twisting, and the flexible design of the conductive member will reduce the mechanical strength of the conductive member. In this way, on the one hand, the tolerance of the conductive member to vibration and impact will be reduced, and on the other hand, the stress distribution on the conductive member will be uneven, thereby affecting the reliability of the conductive member. In addition, the conductive member with higher flexibility has higher requirements for installation accuracy, so that its application is limited by the installation space, thereby affecting the flexibility of the conductive member.

[0042] To solve the above problems, refer to Figure 1 , Figure 4 and Fig.12 The present application provides a battery device, which includes a battery cell, a conductive member 3 and an adapter assembly 2, wherein there are at least two conductive members 3, which are electrically connected to the battery cell; the adapter assembly 2 includes a main body 21, an adapter body 22 and a fixed body 23, wherein there are at least two adapter bodies 22, which are connected to the main body 21, and the adapter body 22 has a connecting surface 2211, which is electrically connected to the conductive member 3, and the planes where the connecting surfaces 2211 of at least two adapter bodies 22 are located intersect, and the fixed body 23 is connected to the main body 21, and the fixed body 23 has an insulating portion 231 to be insulated and fixed to the target position.

[0043] In the embodiments of the present application, the battery cell may be a secondary battery, which refers to a battery cell that can be continuously used by activating the active material by charging after the battery cell is discharged. The battery cell may also be a lithium ion battery, a sodium ion battery, a sodium lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium sulfur battery, a magnesium ion battery, a nickel metal hydride battery, a nickel cadmium battery, a lead storage battery, etc., which is not limited in the embodiments of the present application.

[0044] In the embodiment of the present application, each adapter 22 is connected to each other through the main body 21, and the structural design of the main body 21 has various possibilities. For example, the main body 21 can be a block structure, a plate structure, or a rod structure, and the embodiment of the present application does not limit this.

[0045] In the embodiment of the present application, there are many possibilities for the structural design of the adapter 22. For example, the adapter 22 may be a block structure, a plate structure, or a rod structure, and the embodiment of the present application does not limit this.

[0046] In the embodiment of the present application, there are many possible ways to connect the main body 21 and the adapter 22. For example, the main body 21 can be connected to the adapter 22 as one piece or separately. The embodiment of the present application does not limit this.

[0047] In the embodiment of the present application, the function of the connecting surface 2211 on the adapter 22 is to connect to the conductive member 3. Therefore, the structural form of the connecting surface 2211 has many possibilities. For example, the connecting surface 2211 can be a plane or an arc-shaped surface, and the embodiment of the present application does not limit this.

[0048] In the embodiment of the present application, there are many possible ways to connect the connecting surface 2211 on the adapter 22 and the conductive member 3. For example, Figure 1 , Figure 2 and Figure 3 , the connecting surface 2211 on the adapter 22 and the conductive member 3 can be connected by a fastener 4; or, referring to Figure 4 , Figure 5 and Figure 6 The connecting surface 2211 on the adapter 22 and the conductive member 3 may be connected by welding, which is not limited in this embodiment of the present application.

[0049] In the embodiment of the present application, the structure of the conductive member 3 has many possible forms. For example, the conductive member 3 may be a soft bar, which is an electrical connector made of a flexible material (such as copper foil, aluminum foil, composite flexible material, etc.). Alternatively, the conductive member 3 may also be a hard bar, which is an electrical connector made of a rigid material (such as a copper bar, aluminum bar, etc.), and the embodiment of the present application does not limit this.

[0050] In the embodiment of the present application, when the adapter 22 is connected to the conductive member 3, the adapter 22 needs to carry the same or greater current as the conductive member 3. To this end, the thickness of the adapter 22 can be greater than the thickness of the conductive member 3, and the area of ​​the connecting surface 2211 on the adapter 22 can be greater than the area of ​​the connecting surface on the conductive member 3. In this way, the cross-sectional area of ​​the adapter 2 can be increased, and a larger cross-sectional area can reduce resistance, reduce heat generation, and avoid overheating damage, thereby improving the safety of the adapter assembly 2.

[0051] In the technical solution provided by the embodiment of the present application, the battery device includes a battery cell, a conductive member 3 and an adapter assembly 2, wherein the battery cell is the basic component unit of the battery device, and its function is to provide electrical energy to the external circuit; there are at least two conductive members 3, and the conductive members 3 are electrically connected to the battery cell, and their function is to connect the internal circuit of the battery device so that the battery device can work normally; the adapter assembly 2 includes a main body 21, an adapter body 22 and a fixed body 23, wherein the adapter body 22 has a connection surface 2211 for connecting the conductive member 3, the number of the adapter bodies 22 is at least two, and each adapter body 22 is connected through the main body 21. The planes where the connection surfaces 2211 of at least two adapter bodies 22 are located intersect, that is, the planes where the connection surfaces 2211 of at least two adapter bodies 22 are located are not parallel. In this way, on the one hand, the planes where the connection surfaces 2211 of at least two adapters 22 are located intersect, so that the connection surfaces 2211 of different adapters 22 can be set at an angle, and the connection surfaces 2211 set at an angle can be connected to different conductive members 3 respectively to achieve the turning between the conductive members 3, so that the conductive members 3 can achieve a large angle of turning without bending or twisting or only bending or twisting at a small angle; on the other hand, when the connection surfaces 2211 set at an angle are connected to the conductive member 3, they can provide different angles of support for the conductive member 3, which helps to improve the stability of the connection between the adapter 22 and the conductive member 3. The fixing body 23 is connected to the main body 21, and the fixing body 23 has an insulating portion 231 to be insulated and fixed to the target position. In this way, on the one hand, the fixing body 23 can provide support force for the main body 21, and the support force can be transmitted to the conductive member 3 through the adapter 22 to overcome the bending or sagging of the conductive member 3 under its own weight or external force, thereby improving the stability of the long-span arrangement of the conductive member 3; on the other hand, the main body 21 can adjust its position through the fixing body 23 to improve the flexibility of the arrangement of the adapter assembly 2. In addition, during the application of the adapter assembly 2, the heat generated by the current passing through the main body 21 can also be dissipated through the fixing body 23, which helps to improve the heat dissipation efficiency of the adapter assembly 2.

[0052] Compared with the related art, in which large-angle switching mainly relies on the bending or twisting of a single conductive member 3, the battery device provided in the embodiment of the present application includes a switching assembly 2, which includes a main body 21 and a switching body 22, the switching body 22 having a connection surface 2211 for connecting the conductive member 3, and the number of the switching bodies 22 is at least two, each switching body 22 is connected by switching through the main body 21, and the plane where the connection surface 2211 of each switching body 22 is located is set at an angle. When performing large-angle switching, the angled connection surface 2211 on each switching body 22 can be connected to different conductive members 3 respectively, so that each conductive member 3 can be connected at an angle, thereby changing the extension direction of the free end of the conductive member 3, and the free end of the conductive member 3 connected at an angle can be electrically connected to the target object in the corresponding orientation, so as to realize large-angle switching between each battery cell or between a battery cell and other modules (such as a thermal management module, a battery management module, etc.). In the embodiment of the present application, the spatial turning of the free end of the conductive member 3 is mainly achieved by the connection surface 2211 set at an angle, which reduces the need for the conductive member 3 to bend or twist itself, so that the conductive member 3 can achieve a large angle of turning without bending, twisting or only bending or twisting at a small angle. In this way, the demand for flexibility of the conductive member 3 is reduced, so that the reliability of the conductive member 3 can be improved by improving the mechanical strength. In addition, the fact that the conductive member 3 does not bend, twist or only bends or twists at a small angle can also improve the stress distribution on the conductive member 3, thereby improving the reliability of the conductive member 3. In addition, in the embodiment of the present application, the large-angle transition mainly relies on the transition assembly 2 to connect the conductive members 3 at an angle. In this way, when the transition distance is constant, the length of a single conductive member 3 is reduced, so that the conductive member 3 can better adapt to complex spatial layouts, improve installation flexibility, and thus improve space utilization.

[0053] In the embodiment of the present application, the free end of the conductive member 3 refers to an end of the conductive member that is not fixed or constrained, that is, the end of the conductive member 3 that is away from the connecting surface 2211. The free end can move freely within a specific range to electrically connect to the target object in the corresponding orientation.

[0054] In the embodiment of the present application, the angle between the planes where the connection surfaces 2211 of at least two adapter bodies 22 are located has many possibilities. For example, the angle between the planes where the connection surfaces 2211 of at least two adapter bodies 22 are located can be 30°, 45°, or 60°, which is not limited in the embodiment of the present application. Figure 1 , Figure 2 and Figure 3In a possible embodiment of the present application, the planes where the connection surfaces 2211 of at least two transition bodies 22 are located are perpendicular to each other. In this way, on the one hand, the transition between the conductive members 3 whose extension directions are perpendicular to each other can be realized; on the other hand, the vertically arranged connection surfaces 2211 are conducive to forming a uniform electric field, reducing the current gathering caused by the edge effect, thereby reducing the energy loss during the current transmission process.

[0055] Reference Figure 1 , Figure 2 , Figure 4 and Figure 5 In the embodiment of the present application, the main body 21 extends along the first plane 211, and the plane where the connection surface 2211 of at least one adapter 22 is located intersects with the first plane 211. That is, the plane where the connection surface 2211 of at least one adapter 22 is located is set at an angle to the first plane 211. In this way, the adapter 22 can be set at an angle to the main body 21, thereby optimizing the spatial layout of the main body 21 and the adapter 22, which is conducive to reducing the space occupied by the main body 21 and the adapter 22.

[0056] In the embodiment of the present application, there are many possibilities for the number of adapters 22. For example, the number of adapters 22 can be two, three, or five, which is not limited in the embodiment of the present application.

[0057] Reference Figure 1 , Figure 2 and Figure 3 In the embodiment of the present application, the adapter 22 at least includes a first adapter 22a and a second adapter 22b. The plane where the connection surface 2211 of the first adapter 22a is located is the second plane 22a1, and the plane where the connection surface 2211 of the second adapter 22b is located is the third plane 22b1. The second plane 22a1 and the third plane 22b1 intersect, and the first plane 211 at least intersects with the second plane 22a1 or the third plane 22b1. In this way, the second plane 22a1 and the third plane 22b1 are arranged at an angle, and the first plane 211 is arranged at an angle with one of the second plane 22a1 and the third plane 22b1, which optimizes the layout of the main body 21, the first adapter 22a and the second adapter 22b in three-dimensional space, and reduces the space occupied by the main body 21, the first adapter 22a and the second adapter 22b.

[0058] In the embodiment of the present application, there are many possible angles between the second plane 22a1 and the third plane 22b1. For example, the angle between the second plane 22a1 and the third plane 22b1 can be 30°, 45°, or 60°, which is not limited in the embodiment of the present application.

[0059] In the embodiment of the present application, the first plane 211 can be set at an angle with the second plane 22a1. For example, the angle between the first plane 211 and the second plane 22a1 can be 30°, 60°, or 90°, which is not limited in the embodiment of the present application. At the same time, the first plane 211 can be coplanar with the third plane 22b1. In this way, the setting area of ​​the connecting surface 2211 on the second adapter 22b can be increased, thereby increasing the area for the current to pass. In addition, the increase in the setting area of ​​the connecting surface 2211 on the second adapter 22b can increase the contact area between the conductive member 3 and the second adapter 22b, thereby reducing the risk of poor contact due to vibration, impact or thermal expansion and contraction.

[0060] In the embodiment of the present application, the first plane 211 may also be arranged at an angle to the third plane 22b1. For example, the angle between the first plane 211 and the third plane 22b1 may be 30°, 60°, or 90°, which is not limited in the embodiment of the present application. At the same time, the first plane 211 may be coplanar with the second plane 22a1. In this way, the setting area of ​​the connecting surface 2211 of the first adapter 22a may be increased, thereby increasing the area through which the current passes. In addition, the increase in the setting area of ​​the connecting surface 2211 of the first adapter 22a may increase the contact area between the conductive member 3 and the first adapter 22a, thereby reducing the risk of poor contact due to vibration, impact, or thermal expansion and contraction.

[0061] Reference Figure 2 and Figure 5 In a possible embodiment of the present application, the first plane 211, the second plane 22a1 and the third plane 22b1 are perpendicular to each other. In this way, the first switching body 22a and the second switching body 22b can realize the switching between two mutually perpendicular conductive members 3. In addition, the first plane 211, the second plane 22a1 and the third plane 22b1 are perpendicular to each other, which can make the main body 21, the first switching body 22a and the second switching body 22b effectively utilize the three-dimensional space and reduce the occupied space of the switching component 2.

[0062] Reference Figure 1 and Figure 4 In another possible embodiment of the present application, the first plane 211 is perpendicular to the second plane 22a1, and the first plane 211 is parallel to the third plane 22b1. In this way, the connection surface 2211 of the first adapter 22a is perpendicular to the connection surface 2211 of the second adapter 22b, and the connection surface 2211 of the first adapter 22a is in different dimensions from the connection surface 2211 of the second adapter 22b, so that the first adapter 22a and the second adapter 22b can realize the connection between two mutually perpendicular conductive members 3 with different dimensions.

[0063] In the embodiment of the present application, the first adapter 22a and the second adapter 22b can be connected to the same side of the main body 21, or they can be connected to different sides of the main body 21, and the embodiment of the present application does not limit this. In a possible embodiment of the present application, the main body 21 has a first connection side and a second connection side, the first adapter 22a is connected to the first connection side, the second adapter 22b is connected to the second connection side, and the angle between the first connection side and the second connection side is less than or equal to the angle between the second plane and the third plane. Here, the main body 21 is connected to the first adapter 22a and the second adapter 22b through different sides, and the orientation of the connection surface 2211 on the first adapter 22a and the second adapter 22b can be changed. In this way, the first adapter 22a and the second adapter 22b do not need to be bent or twisted or only need to be bent or twisted at a small angle, so that the angle between the connection surfaces 2211 on the first adapter 22a and the second adapter 22b can meet the setting requirements, which helps to improve the stress distribution between the adapter 22 and the main body 21, thereby improving the reliability of the adapter assembly 2.

[0064] In the embodiment of the present application, the angle between the orientation of the first connection side and the orientation of the second connection side may be smaller than the angle between the second plane and the third plane; or, the angle between the orientation of the first connection side and the orientation of the second connection side may also be equal to the angle between the second plane and the third plane. In this case, the side surface of the first adapter 22a facing away from the first connection side may form a connection surface 2211, and the side surface of the second adapter 22b facing away from the second connection side may form a connection surface 2211.

[0065] In the embodiment of the present application, the material of the connection surface 2211 of the first adapter 22a can be the same as the material of the connection surface 2211 of the second adapter 22b, or it can be different from the material of the connection surface 2211 of the second adapter 22b, and the embodiment of the present application does not limit this. In a possible embodiment of the present application, the material of the connection surface 2211 of the first adapter 22a is different from the material of the connection surface 2211 of the second adapter 22b. In this way, the adapter assembly 2 can achieve the connection of conductive parts 3 of different materials. For example, the material of the connection surface 2211 of the first adapter 22a can be aluminum, and the material of the connection surface 2211 of the second adapter 22b can be copper. The material of one of the two conductive parts 3 can be aluminum, and the material of the other can be copper. The first adapter 22a and the second adapter 22b are respectively electrically connected to the conductive member 3 of the same material. Thus, on the one hand, electrochemical corrosion caused by direct contact between different materials can be avoided, and the reliability of the electrical connection between the adapter 22 and the conductive member 3 is improved; on the other hand, the connection surface 2211 of the adapter 22 and the conductive member 3 are made of the same material, so that the two have consistent conductive properties, thereby ensuring the stability and efficiency of current transmission. In addition, the connection surface 2211 of the adapter 22 and the conductive member 3 are made of the same material, so that the thermal expansion coefficients of the connection surface 2211 of the adapter 22 and the conductive member 3 are consistent, reducing stress caused by temperature changes and preventing the connection from loosening or being damaged.

[0066] In the embodiment of the present application, the material of the connection surface 2211 on the first adapter 22a can be the same as the material of the other parts on the first adapter 22a. For example, the material of the first adapter 22a is copper. In this way, on the one hand, the first adapter 22a can have consistent conductivity, thereby improving the stability and efficiency of the current transmission of the first adapter 22a; on the other hand, the first adapter 22a can have uniform mechanical properties, thereby improving the connection reliability between the first adapter 22a and the conductive member 3. The material of the connection surface 2211 on the first adapter 22a can also be different from the material of the other parts on the first adapter 22a. For example, the connection surface 2211 on the first adapter 22a is a copper-plated layer, and the material of the other parts on the first adapter 22a is aluminum. In this way, on the one hand, the weight of the first adapter 22a can be reduced while improving the conductivity of the first adapter 22a; on the other hand, the production cost of the first adapter 22a can be reduced.

[0067] In the embodiment of the present application, the material of the connection surface 2211 on the second adapter 22b can be the same as the material of the other parts on the second adapter 22b. For example, the material of the second adapter 22b is aluminum. In this way, on the one hand, the second adapter 22b can have consistent conductivity, thereby improving the stability and efficiency of the current transmission of the second adapter 22b; on the other hand, the second adapter 22b can have uniform mechanical properties, thereby improving the connection reliability between the second adapter 22b and the conductive member 3. The material of the connection surface 2211 on the second adapter 22b can also be different from the material of the other parts on the second adapter 22b. For example, the connection surface 2211 on the second adapter 22b is a silver-plated layer, and the material of the other parts on the second adapter 22b is copper. In this way, the corrosion resistance and conductivity of the second adapter 22b can be improved.

[0068] In the embodiment of the present application, there are many possibilities for selecting the material of the main body 21. For example, the material of the main body 21 can be the same as the material of the first adapter 22a; or, the material of the main body 21 can be the same as the material of the second adapter 22b; or, the materials of the main body 21, the first adapter 22a and the second adapter 22b are all different.

[0069] In a possible embodiment of the present application, the material of the first adapter 22a is different from the material of the second adapter 22b, and one of the first adapter 22a and the second adapter 22b is the same as the material of the main body 21. Here, the material of the first adapter 22a is different from the material of the second adapter 22b, so that the connection of the conductive parts 3 of different materials can be realized. The material of one of the first adapter 22a and the second adapter 22b is the same as the material of the main body 21. In this way, when processing the adapter assembly 2, the main body 21 and the adapter 22 of the same material can be processed uniformly to reduce the processing cost.

[0070] In a possible embodiment of the present application, the material of the first adapter 22a is the same as that of the main body 21, the first adapter 22a is connected to the main body 21 as a whole, and the second adapter 22b is connected to the main body 21 as a separate body. Here, the material of the first adapter 22a is the same as that of the main body 21, and the first adapter 22a is connected to the main body 21 as a whole. On the one hand, the first adapter and the main body 21 can be processed as a whole by the same material to form an inseparable whole, thereby improving the connection reliability between the first adapter 22a and the main body 21; on the other hand, there is no additional contact surface between the first adapter 22a and the main body 21, thereby reducing the contact resistance and improving the stability of current transmission. The second adapter 22b is connected to the main body 21 as a separate body. On the one hand, the second adapter 22b of different materials, specifications or functions can be replaced according to application requirements to adapt to different application scenarios, thereby improving the flexibility of the design of the adapter assembly 2; on the other hand, it can allow the performance of the second adapter 22b and the main body 21 to be tested separately, thereby improving quality control. In addition, in the event that the second adapter 22b is damaged, the second adapter 22b can be replaced separately, thereby reducing maintenance costs.

[0071] In the embodiment of the present application, when the material of the main body 21 is different from the material of the second adapter body 22b, there are many possible connection forms between the main body 21 and the second adapter body 22b. For example, the main body 21 and the second adapter body 22b can be connected by mortise and tenon, by crimping, or by riveting, and the embodiment of the present application does not limit this.

[0072] In the embodiment of the present application, the function of the fixing body 23 is to fix the main body 21 at the target position. Therefore, the structural design of the fixing body 23 has many possibilities. For example, the fixing body 23 can be a block structure, a plate structure, or a rod structure. The embodiment of the present application does not limit this.

[0073] In the embodiment of the present application, there are many possible relationships between the extension direction of the fixing body 23 and the first plane 211. For example, the extension direction of the fixing body 23 can be set at 60° to the first plane 211. Figure 1 and Figure 7 In a possible embodiment of the present application, the main body 21 extends along the first plane 211, and the extension direction of the fixing body 23 is perpendicular to the first plane 211. Here, the extension direction of the fixing body 23 is perpendicular to the extension direction of the main body 21, so that the fixing body 23 can provide vertical support for the main body 21, and the vertical support can effectively disperse the external force and reduce the bending or twisting of the main body 21, thereby improving the stability and durability of the structure of the adapter assembly 2.

[0074] In the embodiment of the present application, the structural design of the fixing body 23 has various possibilities. For example, the fixing body 23 only includes the insulating portion 231, that is, the fixing body 23 is made of an insulating material as a whole, and the insulating material can be ceramic, rubber, plastic, etc. Figure 4 , Figure 5 and Figure 6 In a possible embodiment of the present application, one end of the fixed body 23 is connected to the main body 21, and the insulating portion 231 is located at the other end of the fixed body 23. In this way, the end of the fixed body 23 connected to the main body 21 can be made of a material with higher mechanical strength (such as metal), which improves the reliability of the connection between the fixed body 23 and the main body 21; the insulating portion 231 is located on the end of the fixed body 23 facing away from the main body 21, which can provide electrical insulation, prevent current leakage on the main body 21, and improve the safety of the adapter assembly 2.

[0075] In the embodiment of the present application, there are many possible ways to connect the main body 21 and the adapter 22. For example, Figure 1 , Figure 2 and Figure 3 , the fixed body 23 is connected to the main body 21 by a fastener 4; or, refer to Figure 4 , Figure 5 and Figure 6 The fixed body 23 also has a welding portion 232 connected to the insulating portion 231, and the welding portion 232 is welded to the main body 21. Here, the fixed body 23 and the main body 21 are connected by the fastener 4, which can facilitate the disassembly and replacement between the fixed body 23 and the main body 21, which is conducive to improving the convenience of maintenance of the adapter assembly 2. The fixed body 23 is welded to the main body 21 through the welding portion 232, so that a seamless structure can be formed between the fixed body 23 and the main body 21, thereby reducing stress concentration and improving the durability of the overall structure.

[0076] In the embodiment of the present application, the material of the welding portion 232 can be steel, aluminum, copper, etc., and the embodiment of the present application does not limit this. In addition, there are many possible ways to connect the welding portion 232 and the insulating portion 231. For example, the welding portion 232 and the insulating portion 231 can be connected by thread, can be connected by crimping, or can be connected by bonding, and the embodiment of the present application does not limit this.

[0077] Reference Figure 1 and Figure 7In the embodiment of the present application, each adapter body 22 includes an adapter block 221 and a connection surface 2211 provided on at least one side of the adapter block 221, and each adapter body 22 is connected to the main body 21 through the adapter block 221. Here, the adapter body 22 includes the adapter block 221, and the connection surface 2211 is formed by at least one side of the adapter block 221. On the one hand, the adapter block 221 has a high mechanical strength and can withstand a large load and stress, which helps to improve the connection reliability between the adapter body 22 and the conductive member 3; on the other hand, the adapter block 221 can provide a larger area for the setting of the connection surface 2211, thereby reducing the contact resistance between the connection surface 2211 and the conductive member 3, so as to improve the current transmission efficiency.

[0078] In the embodiment of the present application, there are many possibilities for the number of connecting surfaces 2211 on the adapter block 221. For example, the number of connecting surfaces 2211 on the adapter block 221 can be one, that is, the connecting surface 2211 is formed on one side of the adapter block 221; or, the number of connecting surfaces 2211 on the adapter block 221 can be two, that is, two connecting surfaces 2211 are respectively formed on both sides of the adapter block 221, and the embodiment of the present application does not impose any restrictions on this.

[0079] In the embodiment of the present application, when the number of connection surfaces 2211 on a single adapter block 221 is two or more, the adapter block 221 provides more options for connecting the conductive member 3, which facilitates connecting the conductive member 3 in different directions or positions, thereby improving the flexibility of the adapter assembly 2 when in use. In addition, even if one connection surface 2211 on the adapter block 221 fails, the other connection surfaces 2211 can still be connected to the conductive member 3, thereby improving the reliability of the adapter assembly 2 when in use.

[0080] In the embodiment of the present application, the extension direction of the adapter block 221 has many possibilities. For example, the extension direction of the adapter block 221 and the plane where the connecting surface 2211 is located can be set at 90 degrees. Figure 7 and Figure 8 In a possible embodiment of the present application, the extension direction of the adapter block 221 is parallel to the plane where the connection surface 2211 is located. In this way, the setting area of ​​the connection surface 2211 on the adapter block 221 can be increased, thereby reducing the contact resistance between the connection surface 2211 and the conductive member 3, so as to improve the current transmission efficiency.

[0081] Reference Figure 7In the embodiment of the present application, the extension direction of the adapter block 221 is perpendicular to the extension direction of the main body 21, and along the extension direction of the adapter block 221, the side of the main body 21 facing the adapter block 221 is connected to the end of the adapter block 221. Here, the extension direction of the adapter block 221 is perpendicular to the extension direction of the main body 21, which can reduce the occupied space of the adapter assembly 2 in the extension direction of the main body 21. Along the extension direction of the adapter block 221, the side of the main body 21 facing the adapter block 221 is connected to the end of the adapter block 221, so that the adapter block 221 can be set no higher than the main body 21 in the extension direction of the adapter block 221. On the one hand, the external force can be applied to the main body 21 more, reducing the direct impact of the external force on the adapter block 221, and improving the stability of the overall structure; on the other hand, the overall height of the main body 21 and the adapter block 221 can be reduced in the extension direction of the adapter block 221, which helps to optimize the space utilization of the adapter assembly 2.

[0082] Reference Figure 7 In the embodiment of the present application, the adapter block 221 and the fixed body 23 are located on the same side of the main body 21, and a connection surface 2211 is formed on the side of the adapter block 221 facing away from the fixed body 23 along the extension direction of the main body 21. In this way, on the one hand, when the connection surface 2211 is connected to the conductive member 3, the interference of the fixed body 23 can be reduced, which provides more space for installation tools and operations and improves the convenience of operation; on the other hand, the connection surface 2211 is located on the side of the adapter block 221 facing away from the fixed body 23, which can reduce the probability of the connection surface 2211 contacting the conductive part on the fixed body 23, which helps to reduce the risk of accidental contact or short circuit and improve the electrical safety of the adapter assembly 2.

[0083] Reference Fig. 9 and Fig.10 In the embodiment of the present application, the adapter block 221 has a first end and a second end that are arranged opposite to each other, at least one arc segment 2212 is formed between the first end and the second end, and one of the first end and the second end is connected to the main body 21. In this way, when arranging the adapter assembly 2, the arc segment 2212 on the adapter block 221 can avoid the surrounding parts, so that the adapter block 221 can better adapt to the limited space and improve the space utilization of the adapter block 221. In addition, the arc segment 2212 on the adapter block 221 can also buffer vibration, which helps to reduce the impact of the connection between the adapter block 221 and the conductive member 3, thereby improving the reliability of the connection between the adapter block 221 and the conductive member 3.

[0084] In the embodiment of the present application, when the adapter block 221 is connected to the main body 21, the adapter block 221 can be connected to the main body 21 through the first end or through the second end, and the embodiment of the present application does not limit this.

[0085] In the embodiment of the present application, the number of arc segments 2212 on the adapter block 221 may be various. Fig. 9 , the number of arc segments 2212 on the adapter block 221 may be one; or, referring to Fig.10 The number of arc segments 2212 on the adapter block 221 may also be two, which is not limited in the embodiment of the present application.

[0086] Reference Figure 8 In the embodiment of the present application, the extension direction of the adapter block 221 is perpendicular to the extension direction of the main body 21. Along the extension direction of the main body 21, the side of the adapter block 221 facing the main body 21 is connected to the main body 21. The side of the adapter block 221 facing away from the main body 21 forms a connection surface 2211. Along the extension direction of the adapter block 221, the opposite sides of the adapter block 221 are respectively protruded from the corresponding sides of the main body 21. In this way, on the one hand, the setting area of ​​the connection surface 2211 on the adapter block 221 can be increased, thereby reducing the contact resistance between the connection surface 2211 and the conductive member 3 to improve the current transmission efficiency; on the other hand, when the connection surface 2211 is connected to the conductive member 3, the interference of the main body 21 can be reduced, providing more space for installation tools and operations, and improving the convenience of operation.

[0087] Reference Fig.11 In the embodiment of the present application, the adapter block 221 includes a first section 2213, a second section 2214 and a third section 2215. The first section 2213 is connected to the main body 21, the connection surface 2211 is formed on the second section 2214, the third section 2215 is a bent section, and one end of the third section 2215 is connected to the first section 2213, and the other end of the third section 2215 is connected to the second section 2214. In this way, when arranging the adapter assembly 2, the second section 2214 on the adapter block 221 can avoid the surrounding components, so that the adapter block 221 can better adapt to the limited space and improve the space utilization of the adapter block 221.

[0088] In the embodiment of the present application, there are many possible ways to connect the adapter 22 and the main body 21. For example, the adapter 22 and the main body 21 can be directly connected. Figure 2 and Figure 5 In a possible embodiment of the present application, the main body 21 includes a connecting portion 212, and the adapter 22 is connected to the main body 21 through the connecting portion 212. Here, the connecting portion 212 can provide additional support and fixation for the adapter 22, thereby enhancing the reliability of the connection between the adapter 22 and the main body 21.

[0089] In the embodiment of the present application, the extension direction of the connection portion 212 is perpendicular to the extension direction of the fixed body 23, and along the extension direction of the connection portion 212, one end of the connection portion 212 facing away from the fixed body 23 is connected to the adapter 22. In this way, the distance between the fixed body 23 and the adapter 22 can be increased along the extension direction of the connection portion 212. On the one hand, the increase in distance can increase the insulation path, reduce the possibility of the fixed body 23 being electrically broken down, and improve the electrical safety of the adapter assembly 2; on the other hand, the increase in distance can increase the heat dissipation space, make it easier to dissipate heat, prevent local overheating, and improve the heat dissipation efficiency of the adapter assembly 2.

[0090] On this basis, refer to Fig.12 and Fig.13 The battery device further includes a box body 1 and a fixing bracket 5 disposed in the box body 1, the fixing bracket 5 is located at a target position, and a target distance is formed between the fixing bracket 5 and the inner wall of the box body 1, and the main body 21 is connected to the fixing bracket 5. Here, the target distance is formed between the fixing bracket 5 and the inner wall of the box body 1, so that a safe distance can be maintained between the main body 21 and the inner wall of the box body 1, thereby improving the electrical safety of the adapter assembly 2.

[0091] In the embodiment of the present application, the main body 21 can be directly connected to the fixing bracket 5, or can be connected to the fixing bracket 5 through the fixing body 23, and the embodiment of the present application does not limit this.

[0092] In the embodiment of the present application, when the main body is connected to the fixed bracket 5 through the fixed body 23, there are many possible connection methods between the fixed body 23 and the fixed bracket 5. For example, the fixed body 23 and the fixed bracket 5 can be connected by a fastener 4, or by welding, or by snap-on connection, and the embodiment of the present application does not limit this.

[0093] Reference Fig.12 and Fig.13 In an embodiment of the present application, at least two conductive members 3 include a first conductive member 3a and a second conductive member 3b, an extension direction of the first conductive member 3a and an extension direction of the second conductive member 3b are arranged at an angle, and the first conductive member 3a and the second conductive member 3b are electrically connected through a switching component 2.

[0094] In the embodiment of the present application, the battery device may include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly may include multiple battery cells, which are connected in series, in parallel or in hybrid connection through a busbar component.

[0095] In some embodiments, a battery cell assembly is generally formed by arranging a plurality of battery cells; as an example, a battery cell assembly may be a battery module, and a battery module is formed by arranging and fixing a plurality of battery cells to form an independent module. As an example, a battery module may be formed by bundling a plurality of battery cells by a cable tie.

[0096] In some embodiments, the battery device may be a battery pack, which includes a case 1 and one or more battery cell assemblies, and the battery cell assemblies are accommodated in the case 1. The battery cell assemblies may also be battery modules, and the battery cell assemblies may be accommodated in the case 1 by fixing the battery modules in the case 1.

[0097] In some embodiments, the battery cell assembly may also be accommodated in the box body 1 by directly fixing a plurality of battery cells to the box body 1 .

[0098] In some embodiments, the box 1 may include a first box and a second box. The first box and the second box are buckled together to form a closed space inside the box 1 to accommodate the battery cell assembly. The closed space here means covered or closed, which may be sealed or unsealed. The first box may be a top cover or a bottom plate.

[0099] In some embodiments, the box body 1 may also include a top cover, a frame and a bottom plate. The top cover and the bottom plate are respectively connected to the frame, so that a closed space is formed inside the box body 1 to accommodate the battery monomer assembly.

[0100] In some embodiments, the box 1 can also be used as a part of the chassis structure of the vehicle. For example, the top cover of the box 1 can become at least a part of the floor of the vehicle, or the frame of the box 1 can become at least a part of the crossbeam and longitudinal beam of the vehicle.

[0101] In addition, an embodiment of the present application further provides an electrical device, which includes an electrical appliance and a battery device, wherein the battery device is electrically connected to the electrical appliance.

[0102] In the embodiments of the present application, the electric device may be, but is not limited to, a mobile phone, a tablet, a laptop computer, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft, etc. Among them, the electric toy may include a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, and an electric airplane toy, etc., and the spacecraft may include an airplane, a rocket, a space shuttle, and a spacecraft, etc.

[0103] In the embodiment of the present application, the electrical device may be an electric vehicle, the electrical appliances may be a drive motor, a control component, an onboard air conditioner, an onboard entertainment system, etc. in the electric vehicle, and the battery device may be arranged on the bottom side of the vehicle body.

[0104] The electric device provided in the embodiment of the present application includes the battery device of the embodiment of the present application, so the electric device also has the same technical effect, that is, the flexibility and reliability of the switching of the conductive member 3 can be improved.

[0105] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application is described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features can be replaced 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 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.

Claims

1. A battery device, characterized in that: include: Battery cells; Conductive members, at least two of which are electrically connected to the battery cells; An adapter assembly, the adapter assembly includes a main body, an adapter body and a fixed body, the adapter bodies are at least two, the adapter body is connected to the main body, the adapter body has a connecting surface, the connecting surface is electrically connected to the conductive member, the planes where the connecting surfaces of at least two adapter bodies are located intersect, the fixed body is connected to the main body, and the fixed body has an insulating portion, and the main body is insulated and fixed to the target position through the fixed body.

2. The battery device according to claim 1, characterized in that: The planes where the connecting surfaces of at least two of the adapter bodies are located are perpendicular to each other.

3. The battery device according to claim 1, characterized in that: The main body extends along a first plane, and a plane where the connecting surface of at least one of the adapters is located intersects with the first plane.

4. The battery device according to claim 3, characterized in that: The adapter body includes at least a first adapter body and a second adapter body, the plane where the connecting surface of the first adapter body is located is a second plane, the plane where the connecting surface of the second adapter body is located is a third plane, the second plane and the third plane intersect, and the first plane at least intersects with the second plane or the third plane.

5. The battery device according to claim 4, characterized in that: The first plane, the second plane and the third plane are perpendicular to each other.

6. The battery device according to claim 4, characterized in that: The first plane is perpendicular to the second plane, and the first plane is parallel to the third plane.

7. The battery device according to claim 4, characterized in that: The main body has a first connection side and a second connection side, the first adapter is connected to the first connection side, the second adapter is connected to the second connection side, and the angle between the first connection side and the second connection side is less than or equal to the angle between the second plane and the third plane.

8. The battery device according to claim 4, characterized in that: A material of the connection surface of the first adapter is different from a material of the connection surface of the second adapter.

9. The battery device according to claim 8, characterized in that: The material of the first adapter body is different from the material of the second adapter body, and the material of one of the first adapter body and the second adapter body is the same as the material of the main body.

10. The battery device according to claim 9, characterized in that: The material of the first adapter is the same as that of the main body. The first adapter is integrally connected to the main body, and the second adapter is separately connected to the main body.

11. The battery device according to claim 1, characterized in that: The main body extends along a first plane, and an extending direction of the fixing body is perpendicular to the first plane.

12. The battery device according to claim 11, characterized in that: One end of the fixed body is connected to the main body, and the insulating part is located at the other end of the fixed body.

13. The battery device according to claim 11, characterized in that: The fixing body is connected to the main body via a fastener; or, the fixing body further comprises a welding portion connected to the insulating portion, and the welding portion is connected to the main body by welding.

14. The battery device according to any one of claims 1 to 13, characterized in that: Each of the adapter bodies includes an adapter block and the connection surface arranged on at least one side of the adapter block, and each of the adapter bodies is connected to the main body through the adapter block.

15. The battery device according to claim 14, characterized in that: The extending direction of the adapter block is parallel to the plane where the connecting surface is located.

16. The battery device according to claim 14, characterized in that: The extension direction of the adapter block is perpendicular to the extension direction of the main body. Along the extension direction of the adapter block, one side of the main body facing the adapter block is connected to the end of the adapter block.

17. The battery device according to claim 14, characterized in that: The adapter block has a first end and a second end that are arranged opposite to each other, at least one arc segment is formed between the first end and the second end, and one of the first end and the second end is connected to the main body.

18. The battery device according to claim 14, characterized in that: The extension direction of the adapter block is perpendicular to the extension direction of the main body. Along the extension direction of the main body, the side of the adapter block facing the main body is connected to the main body, and the side of the adapter block facing away from the main body forms the connecting surface. Along the extension direction of the adapter block, the opposite sides of the adapter block are respectively protruded from the corresponding sides of the main body.

19. The battery device according to claim 14, characterized in that: The adapter block includes a first section, a second section and a third section, the first section is connected to the main body, the connecting surface is formed on the second section, the third section is a bent section, and one end of the third section is connected to the first section, and the other end of the third section is connected to the second section.

20. The battery device according to any one of claims 1 to 13, characterized in that: The main body comprises a connecting portion, and the adapter is connected to the main body via the connecting portion.

21. The battery device according to claim 20, characterized in that The extending direction of the connecting portion is perpendicular to the extending direction of the fixing body. Along the extending direction of the connecting portion, one end of the connecting portion facing away from the fixing body is connected to the adapter body.

22. The battery device according to any one of claims 1 to 13, characterized in that: The battery device further comprises a box body and a fixing bracket arranged in the box body, the fixing bracket is located at the target position, and a target distance is formed between the fixing bracket and the inner wall of the box body, and the main body is insulated and fixed to the fixing bracket.

23. An electrical device, characterized in that: include: Electrical appliances; The battery device according to any one of claims 1 to 22, wherein the battery device is electrically connected to the electrical appliance.

Images