Connecting bar, electric connector, battery assembly, battery pack and vehicle

Abstract

The utility model provides a connecting bar, an electric connector, a battery assembly, a battery pack and a vehicle. The battery assembly comprises a first battery cell and a second battery cell. The connecting bar comprises a body and a connecting part. The body comprises a positive electrode connecting part and a negative electrode connecting part. The positive electrode connecting part is suitable for being electrically connected to a positive electrode post of the first battery cell; and the negative electrode connecting part is suitable for being electrically connected to a negative electrode post of the second battery cell. The connecting part is conductively connected to the body, and the connecting part is suitable for being electrically connected to the shell of the first battery cell. According to the utility model, the structure of the battery assembly is simplified, and the number of parts is reduced, so that the reduction of production procedures is facilitated, and the assembly efficiency can be improved.

Description

Technical Field

[0001] The utility model generally relates to the technical field of batteries, and more specifically to a connection bar, an electrical connector, a battery assembly, a battery pack and a vehicle. Background Art

[0002] The battery pack in the related art has a battery module, a plastic bracket, a battery connection row and a flexible printed circuit (Flexible Printed Circuit, FPC for short). The FPC includes multiple small circuits and multiple nickel sheets. Each nickel sheet is distributed on opposite sides of the small circuit and is electrically connected to the small circuit. The nickel sheets on both sides of the small circuit are respectively connected to the battery connection row and the battery shell, that is, the function of the FPC is to connect the battery shell and the positive electrode of the battery cell respectively, so that the battery shell belt has the same potential as the positive electrode of the battery cell. During assembly, the plastic bracket is first assembled to the end face of the battery module, and then the battery connection row is inserted into the buckle of the plastic bracket one by one, and then the battery connection row is welded to the pole of the battery cell, and finally the FPC is assembled, and one end of the nickel sheet of the FPC is welded to the connection row, and the other end of the nickel sheet is welded to the battery shell. The assembly process is relatively cumbersome, resulting in low packaging efficiency. Utility Model Content

[0003] A series of simplified concepts are introduced in the utility model content section, which will be further described in detail in the detailed implementation section. The utility model content section does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0004] In order to at least partially solve the above problems, the first aspect of the present invention provides a connection bar suitable for a battery assembly.

[0005] The battery assembly includes a first battery cell and a second battery cell, and the connecting row includes:

[0006] A body, the body comprising a positive electrode connection portion and a negative electrode connection portion, the positive electrode connection portion is suitable for being electrically connected to the positive electrode post of the first battery cell, and the negative electrode connection portion is suitable for being electrically connected to the negative electrode post of the second battery cell; and

[0007] A connecting portion, wherein the connecting portion is conductively connected to the main body, and the connecting portion is suitable for being electrically connected to a shell of the first battery cell.

[0008] According to the connection row of the first aspect of the utility model, by providing a positive connection part for connecting the positive pole of the first battery cell and a negative connection part for connecting the negative pole of the second battery cell on the connection row, and providing a connection part for connecting the shell of the first battery cell, when the connection row is applied to the battery assembly, the potential of the positive pole of the adjacent first battery cell, the negative pole of the second battery cell and the shell of the first battery cell can be kept equal. Compared with the related art that uses FPC alone to realize the function of the connection part, the utility model can simplify the electrical connection structure and realize more functions with fewer parts or components, which helps to improve assembly efficiency, reduce costs and has higher promotion and application value.

[0009] Optionally, the connecting portion is configured to extend outwardly from the body.

[0010] Optionally, the main body and the connecting portion are constructed as an integral piece.

[0011] A second aspect of the utility model provides an electrical connector, the electrical connector comprising:

[0012] Insulation brackets; and

[0013] There are a plurality of the above-mentioned connection rows, each of which is fixed to the insulating support, and adjacent connection rows are spaced apart from each other.

[0014] According to the electrical connector of the second aspect of the utility model, by applying the above-mentioned connection row, the electrical connection structure between the battery cells can be simplified, thereby improving assembly efficiency and reducing costs. By fixing the connection row to the insulating bracket, it is convenient to position each connection row through the insulating bracket, and then it is convenient to use the insulating bracket as a carrier of each connection row to realize assembly connection with each battery cell, which can further improve assembly efficiency.

[0015] Optionally, a plurality of the connection rows are arranged sequentially along the first direction.

[0016] Optionally, the insulating bracket is a plastic bracket, and the plastic bracket and each of the connecting rows are constructed as an integral piece connected as one by injection molding.

[0017] Optionally, the insulating support includes a plurality of vacant portions, the vacant portions penetrate the insulating support, and the vacant portions are arranged corresponding to the connection rows so that the positive electrode connection portion and the negative electrode connection portion can face the outside of the insulating support.

[0018] Optionally, the electrical connector further includes:

[0019] An insulating cover is connected to the insulating support, and the insulating cover is arranged corresponding to the vacant portion to cover the vacant portion.

[0020] A third aspect of the present invention provides a battery assembly, the battery assembly comprising:

[0021] The first battery cell, the second battery cell and the connecting bar; or

[0022] The battery assembly includes a first battery cell, a second battery cell and the above-mentioned electrical connector.

[0023] According to the battery assembly of the third aspect of the utility model, by applying the above-mentioned connecting row or electrical connector, the positive electrode column of the first battery cell, the shell of the first battery cell and the negative electrode column of the second battery cell are electrically connected, which can reduce the number of parts or components and simplify the electrical connection structure between battery cells, thereby helping to reduce costs and improve production efficiency.

[0024] Optionally, the battery assembly further includes a plurality of battery cells, the plurality of battery cells include a first battery cell and a second battery cell, the first battery cell and the second battery cell are alternately arranged in a first direction,

[0025] The positive connection portion of the connection row is electrically connected to the positive electrode column of the first battery cell, the negative connection portion of the connection row is electrically connected to the negative electrode column of the second battery cell, and the connection portion of the connection row is electrically connected to the shell of the first battery cell, so that the potentials of the shell of the first battery cell, the positive electrode column of the first battery cell, and the negative electrode column of the second battery cell are equal.

[0026] Optionally, the positive electrode post of the first battery cell and the negative electrode post of the second battery cell are oriented in the same direction.

[0027] Optionally, the positive pole and the negative pole of the battery cell are respectively located at two ends of the battery cell along a second direction, and the second direction intersects with the first direction.

[0028] Optionally, the connection row is located outside the battery cell in the second direction.

[0029] Optionally, the connecting portion is configured to extend outward from the body along a third direction, and the third direction intersects the first direction and the second direction.

[0030] A fourth aspect of the present invention provides a battery pack, which includes the above-mentioned battery assembly.

[0031] According to the battery pack of the fourth aspect of the utility model, by adopting the above-mentioned battery assembly, the structure of the battery pack can be simplified and the number of parts can be reduced, which helps to reduce the production process, thereby reducing production costs and improving assembly efficiency, and also facilitates the maintenance of the battery pack.

[0032] A fifth aspect of the utility model provides a vehicle, which includes the above-mentioned battery pack.

[0033] According to the vehicle of the fifth aspect of the utility model, by applying the above-mentioned battery pack, it is possible to reduce production costs and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The following drawings of the embodiments of the present invention are used as part of the present invention for understanding the present invention. The drawings show the embodiments of the present invention and their descriptions, and are used to explain the principles of the present invention. In the drawings,

[0035] Figure 1 A three-dimensional view of a battery pack according to a preferred embodiment of the present utility model;

[0036] Figure 2 for Figure 1 An exploded perspective view of the battery pack shown;

[0037] Figure 3 for Figure 1 A three-dimensional view of two battery assemblies in FIG.

[0038] Figure 4 for Figure 1 A schematic diagram of a battery assembly in FIG.

[0039] Figure 5 for Figure 4 A partially exploded perspective view of a battery assembly is shown;

[0040] Figure 6 for Figure 1 An enlarged view of part I in FIG.

[0041] Figure 7 for Figure 4 A partial front view of an FPC end of a battery assembly shown;

[0042] Figure 8 A front view of a connecting bar according to a preferred embodiment of the present utility model;

[0043] Fig. 9 for Figure 8 A left side view of the connecting row shown; and

[0044] Fig.10 It is a front view of the integrated structure of the connecting bar and the insulating bracket according to a preferred embodiment of the utility model.

[0045] Description of reference numerals:

[0046] 100: Battery pack 110: Battery assembly

[0047] 111: Battery cell 111a: Positive pole

[0048] 111b: negative pole 111c: shell

[0049] 111d: first battery cell 111e: second battery cell

[0050] 112: connection row 112a: body

[0051] 112b: positive electrode process hole 112c: negative electrode process hole

[0052] 112d: positive electrode connection portion 112e: negative electrode connection portion

[0053] 112f: Connecting part 113: Insulating bracket

[0054] 113a: Vacant portion 114: Insulation cover

[0055] 115: FPC end 116: BIC end

[0056] 130: Cover 140: Tray

[0057] 150: Power distribution component D1: First direction

[0058] D2: Second direction D3: Third direction DETAILED DESCRIPTION

[0059] In the following description, a large number of specific details are given to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features known in the art are not described.

[0060] In order to fully understand the implementation of the present invention, a detailed structure will be presented in the following description. Obviously, the implementation of the implementation of the present invention is not limited to the specific details familiar to those skilled in the art.

[0061] It should be understood that the purpose of the terms used herein is only to describe specific embodiments and is not intended to limit the present invention, and the singular forms "a", "an" and "said / the" are also intended to include plural forms, unless the context clearly indicates otherwise. When the terms "comprise" and / or "include" are used in this specification, it indicates the presence of the features, integral bodies, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integral bodies, steps, operations, elements, components and / or combinations thereof.

[0062] Ordinal numbers such as "first" and "second" cited in the present invention are merely identifiers and do not have any other meaning, such as a specific order. Moreover, for example, the term "first component" itself does not imply the existence of the "second component", and the term "second component" itself does not imply the existence of the "first component". It should be noted that the terms "vertical", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "inner", "outer" and similar expressions used in the present invention are only for the purpose of explanation and are not limiting.

[0063] In the present utility model, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, it can be "welding", "bolting", "riveting", "bonding", etc. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0064] The "parallel" / "vertical" and similar expressions used in the present invention include an absolute parallel / vertical relationship and a roughly parallel / vertical relationship (for example, a relationship that differs from absolute parallel / vertical by -5° to +5°), which can have the same effect.

[0065] Hereinafter, specific embodiments of the present invention will be described in more detail with reference to the accompanying drawings. These drawings show representative embodiments of the present invention and are not intended to limit the present invention.

[0066] The assembly process of the battery pack of the related technology is: first assemble the plastic bracket to the end face of the battery module; then clip the battery cell connection row into the plastic bracket buckle one by one; then weld the connection row to the battery cell pole; finally assemble the PFC, and weld one end of the FPC nickel sheet to the connection row and the other end to the battery cell shell. Among them, there are multiple small circuits inside the FPC and multiple nickel sheets outside. The nickel sheets are distributed on opposite sides of the FPC. Each small circuit is connected to two nickel sheets located on both sides of the small circuit. The two nickel sheets are respectively connected to the connection row and the outer shell of the battery cell where the positive pole connected to the connection row is located. That is, the function of the FPC is to connect the battery cell shell and the positive pole of the battery cell respectively, so that the battery cell shell belt has the same potential as the positive pole of the battery cell.

[0067] In the related art, when assembling the battery cell assembly, at the FPC end of the battery assembly, first assemble the plastic bracket to the end face of the battery assembly, and clip the connecting bars into the buckles of the plastic bracket one by one. The connecting bar and the plastic bracket are first positioned with buckles, and then the connecting bar and the poles of the battery cell are welded together. Then assemble the PFC. One end of the FPC nickel sheet is welded to the connecting bar, and the other end is welded to the outer shell of the battery cell. Finally, assemble the plastic protective cover to the plastic bracket, and the protective cover and the plastic bracket are connected by buckles. In other words, in the related art, each connecting bar needs to be separately installed on the plastic bracket, and then welded, and the installation steps are relatively cumbersome.

[0068] In order to solve the above defects, the utility model provides a battery assembly and a battery pack having the battery assembly.

[0069] The following will refer to Figures 1 to 10 The example shown describes in detail the connection row 112 according to the utility model, the electrical connector having the connection row 112, the battery assembly 110 having the electrical connector, the battery pack 100 having the battery assembly 110, and the vehicle having the battery pack 100. Among them, the battery assembly 110 can also be called a battery module or a battery pack. The battery assembly 110 may include an FPC terminal 115 and a BIC terminal 116 facing oppositely along the first direction D1. The new structure of the battery assembly 110 is located at the FPC terminal 115 of the battery cell 111 assembly, so the structure of the BIC terminal 116 will not be repeated below. Figures 1 to 6 The example shown has two battery assemblies 110, one of which is described below.

[0070] A connection row according to the utility model is suitable for a battery assembly 110. An embodiment of the battery assembly 110 may include a plurality of battery cells 111 arranged in sequence along a first direction D1. One end 116 of the battery cell 111 along the second direction D2 has a positive pole 111a. The other end 116 of the battery cell 111 along the second direction D2 has a negative pole 111b. The poles of adjacent battery cells 111 on the same side of the second direction D2 are opposite in polarity. The second direction D2 is, for example, perpendicular to the first direction D1. The connection row 112 may include a body 112a and a connection portion 112f. The body 112a may include a positive connection portion 112d and a negative connection portion 112e. The positive connection portion 112d is suitable for being electrically connected to the positive pole 111a of one of the two adjacent battery cells 111. The negative connection portion 112e is suitable for being electrically connected to the negative pole 111b of the other of the two adjacent battery cells 111. The connection portion 112f is connected to the body 112a. The connection portion 112f is suitable for electrically connecting to the shell 111c of the battery cell 111 connected to the positive electrode connection portion 112d. The body 112a is equivalent to the connection bar 112 in the related art, and is also equivalent to the small circuit and a part of the nickel sheet of the FPC, and the connection portion 112f is equivalent to another part of the nickel sheet. By adopting the above technical means, the purpose of integrating the connection bar 112 in the related art with the FPC is achieved.

[0071] According to the connection row of the utility model, by providing a positive connection part 112d and a negative connection part 112e for connecting the poles of adjacent cells 111 on the connection row 112, and providing a connection part 112f on the connection row 112 for connecting the shell 111c of the cell 111 where the positive pole 111a connected to the connection row 112 is located, when the connection row 112 is applied to the battery assembly 110, the potential of the positive pole 111a, the negative pole 111b of two adjacent cells 111 and the shell 111c of the cell 111 where the positive pole 111a is located can be kept equal. Compared with the related art that uses FPC alone to realize the function of the connection part 112f, the utility model can simplify the electrical connection structure and realize more functions with fewer parts or components, which helps to improve assembly efficiency, reduce costs and has higher promotion and application value.

[0072] See also Figure 7For example, the plurality of battery cells 111 may be divided into a first battery cell 111d and a second battery cell 111e. The first battery cell 111d and the second battery cell 111e are alternately arranged in the first direction D1. In adjacent first battery cells 111d and second battery cells 111e, the positive electrode column 111a of the first battery cell 111d and the negative electrode column 111b of the second battery cell 111e are located on the same side of the first direction D1 of the battery assembly 110. The positive electrode connection portion 112d is adapted to be electrically connected to the positive electrode column 111a of the first battery cell 111d. The negative electrode connection portion 112e is adapted to be electrically connected to the negative electrode column 111b of the second battery cell 111e. The connection portion 112f is adapted to be electrically connected to the housing 111c of the first battery cell 111d.

[0073] See also Figures 6 to 10 For example, the connection portion 112f may be configured to extend outward from the body 112a, which can reduce the space occupied by the connection portion 112f corresponding to the body 112a and facilitate the connection between the connection portion 112f and the housing 111c of the battery cell 111.

[0074] See also Figures 8 to 10 Optionally, the connecting portion 112f may be configured as a protrusion extending from the main body 112a along the third direction D3. That is, the connecting portion 112f and the main body 112a are an integral piece.

[0075] See also Figures 6 to 10 For example, the body 112a and the connecting portion 112f are constructed as an integral piece. By making the body 112a and the connecting portion 112f as one piece, the integrity of the body 112a and the connecting portion 112f can be improved, and the strength of the connecting structure of the body 112a and the connecting portion 112f can also be improved.

[0076] exist Figure 8 and Fig. 9 In the example shown, the connection bar 112 is a sheet metal part. The connection bar 112 can be a double-layer sheet metal structure formed by first stamping and then bending. The connection bar 112 has three welding areas. Two of the welding areas are located at the positive electrode connection part 112d and the negative electrode connection part 112e of the body 112a, which are used to weld the poles of the two battery cells 111. The third welding area is located at the connection part 112f, which is used to weld the connection bar 112 to the shell 111c of the battery cell 111.

[0077] See also Figures 4 to 10For example, the positive electrode connection part 112d and the negative electrode connection part 112e are fixedly connected to the pole by a welding process. The main body 112a includes a positive electrode process hole 112b and a negative electrode process hole 112c. The positive electrode process hole 112b is located at the positive electrode connection part 112d, for example, at the center of the positive electrode connection part 112d. The negative electrode process hole 112c is located at the negative electrode connection part 112e, for example, at the center of the negative electrode connection part 112e. The positive electrode process hole 112b and the negative electrode process hole 112c are used to facilitate the laser welding equipment to identify and locate the positive electrode connection part 112d and the negative electrode connection part 112e when laser welding is used between the connecting row 112 and the pole of the battery cell 111.

[0078] See also Figures 1 to 10 The utility model also provides an electrical connector. The electrical connector may include an insulating bracket 113 and a plurality of the above-mentioned connection rows 112. The connection row 112 is fixed to the insulating bracket 113. The plurality of connection rows 112 are arranged in sequence along a first direction D1 on the insulating bracket 113 and are spaced apart from each other. The first direction D1 here is the arrangement direction of the connection row 112 on the insulating bracket 113. When the electrical connector is assembled to the battery cell 111, the first direction D1 is consistent with the arrangement direction of the battery cell 111.

[0079] According to the electrical connector of the utility model, by applying the above-mentioned connection row 112, the electrical connection structure between the battery cells 111 can be simplified, thereby improving assembly efficiency and reducing costs. By fixing the connection row 112 to the insulating bracket 113, it is convenient to position each connection row 112 through the insulating bracket 113, and then it is convenient to use the insulating bracket 113 as a carrier of each connection row 112 to realize assembly connection with each battery cell 111, which can further improve assembly efficiency. By providing the insulating bracket 113, the position of each connection row 112 can be positioned and supported.

[0080] In the related art, the connecting bars need to be installed one by one on the insulating bracket and then welded, which is very inefficient. Figures 4 to 10 In this regard, the insulating bracket 113 of the utility model can be constructed as a plastic bracket. And the plastic bracket and each connecting row 112 are connected as an integral part. The connecting row 112 can be connected as a whole with the plastic bracket during the process of the plastic bracket being made by injection molding or other processes. In this way, the connecting row 112 and the plastic bracket can be integrated together, which is convenient for assembly operations and helps to improve assembly efficiency. The utility model integrates the connecting row 112 with the plastic bracket after optimizing the structure. The integrated structure can realize the direct positioning of the connecting row 112 on the end face of the battery cell 111 through the connection between the plastic bracket and the battery cell 111, and then welded, without the need to install the connecting row 112 one by one, which is beneficial to improving the assembly efficiency of the battery pack 100.

[0081] The embodiment of the utility model integrates the connection bar 112 and the plastic bracket together by integral injection molding. The connection bar 112 and the plastic bracket are assembled to the end 116 of the battery cell 111 as a whole, and then the connection bar 112 is welded, without installing the connection bar 112 one by one. Since there are a large number of connection bars 112 in the entire battery pack 100, the connection bar 112 and the plastic bracket are integrated by integral injection molding, which can greatly save the installation time of the connection bar 112 and greatly improve the packaging efficiency.

[0082] See also Figures 5 to 7 as well as Fig.10 For example, the insulating support 113 may include a plurality of vacant portions 113a. The vacant portions 113a penetrate the insulating support 113 along the second direction D2, and the plurality of vacant portions 113a are respectively arranged corresponding to the positive electrode connection portion 112d and the negative electrode connection portion 112e, so that the positive electrode connection portion 112d and the negative electrode connection portion 112e can face the outside of the insulating support 113 in the second direction D2. The vacant portions 113a here can be understood as being used to accommodate the connection row 112, and to make the positive electrode connection portion 112d and the negative electrode connection portion 112e exposed in the second direction D2, so that the positive electrode connection portion 112d is connected to the positive electrode column 111a of the battery cell 111 and the negative electrode connection portion 112e is connected to the negative electrode column 111b of the battery cell 111.

[0083] See also Figures 4 to 6 In addition, the electrical connector may further include an insulating cover 114. The insulating cover 114 is connected to one side of the insulating bracket 113 along the second direction D2. The insulating cover 114 is arranged corresponding to the vacant portion 113a to cover the vacant portion 113a. In the application state of the electrical connector to the battery assembly 110, the insulating cover 114 is located farther from the battery cell 111 than the insulating bracket 113 in the second direction D2. By adding the insulating cover 114, the positive electrode connection portion 112d and the negative electrode connection portion 112e can be covered to improve the safety of the electrical connector.

[0084] For example, the insulating cover 114 is connected to the insulating bracket 113 in a detachable connection manner such as snap connection, so as to facilitate the maintenance of the battery assembly 110.

[0085] like Figures 4 to 10As shown, the battery assembly according to the utility model may include a battery cell 111 and the above-mentioned connection row 112. Alternatively, the battery assembly may include a battery cell 111 and the above-mentioned electrical connector. The electrical connector here may include the above-mentioned connection row 112. The battery cell 111 is multiple and arranged in sequence along the first direction D1. That is, multiple battery cells 111 are stacked or arranged in a stack along the first direction D1. One end 116 of the battery cell 111 along the second direction D2 has a positive pole 111a. The other end 116 of the battery cell 111 along the second direction D2 has a negative pole 111b. That is, the positive pole 111a and the negative pole 111b of the battery cell 111 are respectively located at the two ends 116 of the battery cell 111 along the second direction D2. The poles of adjacent battery cells 111 on the same side of the second direction D2 have opposite polarities. That is, when the battery cells 111 are stacked along the first direction D1, the poles of the battery cells 111 are arranged alternately in opposite directions. The second direction D2 is perpendicular to the first direction D1. There are multiple connecting rows 112 and they are all located on one side of the battery cell 111 in the second direction D2. Each connecting row 112 connects the poles of two adjacent battery cells 111 so that the battery cells 111 are connected in series. Among them, the shell 111c of the battery cell 111 to which the positive pole 111a is connected by the connecting row 112 is connected to the same connecting row 112. That is, the shell 111c of the battery cell 111 where the positive pole 111a connected to the connecting row 112 is located is conductively connected to the connecting row 112. In this way, the potential of the shell 111c of one battery cell 111 of the two adjacent battery cells 111 and the potential of the positive pole 111a are equal to the potential of the negative pole 111b of the other battery cell 111.

[0086] When the outer contour of the battery cell 111 is a rectangular parallelepiped, a cube, or a three-dimensional shape close to a rectangular parallelepiped or a cube, the first direction D1 can be understood as the thickness direction of the battery cell 111, the second direction D2 can be understood as the length direction of the battery cell 111, and the height direction of the battery cell 111 can be recorded as the third direction D3.

[0087] According to the battery assembly of the utility model, the poles of adjacent cells 111 are connected by the connecting bar 112, and the connecting bar 112 is connected to the shell 111c of the cell 111 where the positive pole 111a is located, which is equivalent to integrating the FPC and the connecting bar 112 of the related art into one part. By adopting the above technical means, the structure of the battery assembly 110 is simplified, the number of parts is reduced, which helps to reduce the production process and thus improve the assembly efficiency.

[0088] See also Figure 7For example, the plurality of battery cells 111 may be divided into a first battery cell 111d and a second battery cell 111e. The first battery cell 111d and the second battery cell 111e are alternately arranged in the first direction D1. In adjacent first battery cells 111d and second battery cells 111e, the positive electrode column 111a of the first battery cell 111d and the negative electrode column 111b of the second battery cell 111e are located on the same side of the first direction D1 of the battery assembly 110. The positive electrode connection portion 112d is adapted to be electrically connected to the positive electrode column 111a of the first battery cell 111d. The negative electrode connection portion 112e is adapted to be electrically connected to the negative electrode column 111b of the second battery cell 111e. The connection portion 112f is adapted to be electrically connected to the housing 111c of the first battery cell 111d.

[0089] In other examples, the shape of the outer contour of the battery cell 111 is not limited to the shapes listed above, for example, it can be cylindrical.

[0090] See also Figures 5 to 8 ,as well as Fig.10 For example, the angle between the center line of the two poles connected by the connecting row 112 and the first direction D1 is not equal to zero. In other words, Figure 7 As shown, the line connecting the center of the positive pole 111a of the first battery cell 111d and the center of the negative pole 111b of the second battery cell 111e is not parallel to the first direction D1. That is, the poles of adjacent battery cells 111 are located at different positions in the height direction, which can increase the distance between the poles of two adjacent battery cells 111 and effectively prevent problems such as short circuits.

[0091] Continue reading Figures 5 to 8 ,as well as Fig.10 For example, a plurality of positive poles 111a located on the same side of the battery assembly 110 are arranged side by side along the first direction D1. A plurality of negative poles 111b located on the same side of the battery assembly 110 are arranged side by side along the first direction D1. Specifically, the battery assembly 110 has an FPC terminal 115 and a BIC terminal 116. The positive poles 111a located at the FPC terminal 115 of the battery assembly 110 are arranged side by side along the first direction D1. The negative poles 111b located at the FPC terminal 115 of the battery assembly 110 are arranged side by side along the first direction D1. The positive poles 111a located at the BIC terminal 116 of the battery assembly 110 are arranged side by side along the first direction D1. The negative poles 111b located at the BIC terminal 116 of the battery assembly 110 are arranged side by side along the first direction D1. The FPC terminal 115 is used to arrange the connection row 112. The BIC terminal 116 is arranged with a battery information collector.

[0092] See also Figures 5 to 8 ,as well as Fig.10For example, the shape and size of each connection row 112 are the same. And the connection rows 112 are arranged in sequence along the first direction D1. By setting the shape and size of each connection row 112 to be the same, unified manufacturing is achieved.

[0093] According to the battery assembly 110 of the utility model, by optimizing the structure of the connection row 112, a connection portion 112f is provided on the connection row 112, which is equivalent to integrating the functions of the connection row 112 and the FPC of the related art. Compared with the related art, while the FPC components here are cancelled, the function of the FPC here is realized by the connection row 112. In this way, the internal components of the battery pack 100 can be reduced while ensuring the function of the battery pack 100, and a welding process between the connection row 112 and the FPC can be reduced, the assembly process is simplified, and the packaging efficiency of the battery pack 100 is improved. Moreover, by adopting methods such as integral injection molding to make each connection row 112 and the insulating bracket 113 into an integrated part, a more complex plastic structure can be realized, while methods such as film layer fixing or hot pressing molding cannot realize a more complex structure. With this structure, there is no need to install the connection row 112 one by one, which further improves the packaging efficiency of the battery pack 100.

[0094] See also Figures 1 to 10 The utility model also provides a battery pack. The battery pack 100 may include a cover body 130, a tray 140, a power distribution assembly 150 and the above-mentioned battery assembly 110. The tray 140 is connected to the cover body 130 to enclose a storage space. The battery assembly 110 is located in the storage space. The power distribution assembly 150 is located in the storage space. The power distribution assembly 150 is electrically connected to the battery assembly 110. The power distribution assembly 150 can also be called a high-voltage power distribution module. According to the battery pack of the utility model, the structure can be simplified and the number of parts can be reduced, which helps to improve assembly efficiency.

[0095] The utility model integrates the connection bar 112 and the FPC together, without the need for the FPC, and changes the structure of the connection bar 112 of the battery cell 111, so that the positive pole 111a of the battery cell 111 and the shell 111c of the battery cell 111 are directly connected together through the connection bar 112. In order to facilitate the installation of the connection bar 112 in the battery assembly 110, multiple connection bars 112 are integrated into the insulating bracket 113 through one-piece injection molding, so that the connection bar 112 and the insulating bracket 113 become a whole. By adopting the battery assembly 110 of the utility model, the separately set FPC is eliminated, the components of the battery assembly 110 are saved, and thus a welding process of the FPC and the connection bar 112 is reduced. The connection bar 112 and the insulating bracket 113 are integrated together, thereby simplifying the assembly process of the connection bar 112 and further improving the packaging efficiency of the battery pack 100.

[0096] The utility model also provides a vehicle. The vehicle here can be a fuel vehicle, a hybrid vehicle, a pure electric vehicle, etc. The vehicle can include the above-mentioned battery pack 100.

[0097] According to the vehicle of the present invention, by applying the above-mentioned battery pack 100, it is possible to reduce production costs and improve production efficiency.

[0098] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art in the technical field of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. Terms such as "setting" appearing in this article may indicate that one component is directly attached to another component, or that one component is attached to another component through an intermediate. Features described in this article in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise specified.

[0099] The utility model has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the utility model to the described embodiments. It can be understood by those skilled in the art that more variations and modifications can be made according to the teachings of the utility model, and these variations and modifications all fall within the scope of the protection claimed by the utility model.

Claims

1. A connection bar, suitable for a battery assembly, characterized in that: The battery assembly includes a first battery cell and a second battery cell, and the connecting row includes: A body, the body comprising a positive electrode connection portion and a negative electrode connection portion, the positive electrode connection portion is suitable for being electrically connected to the positive electrode post of the first battery cell, and the negative electrode connection portion is suitable for being electrically connected to the negative electrode post of the second battery cell; and A connecting portion, wherein the connecting portion is conductively connected to the main body, and the connecting portion is suitable for being electrically connected to a shell of the first battery cell.

2. The connecting bar according to claim 1, characterized in that: The connecting portion is configured to extend outward from the body.

3. The connecting bar according to claim 1, characterized in that: The body and the connecting portion are constructed as an integral piece.

4. An electrical connector, characterized in that: The electrical connector comprises: Insulation brackets; and A plurality of connection bars according to any one of claims 1 to 3, each of the connection bars being fixed to the insulating bracket, and adjacent connection bars being spaced apart from each other.

5. The electrical connector according to claim 4, characterized in that: The plurality of connection rows are arranged in sequence along the first direction.

6. The electrical connector according to claim 4, characterized in that: The insulating bracket is constructed as a plastic bracket, and the plastic bracket and each of the connecting rows are constructed as an integral piece connected as a whole through injection molding.

7. The electrical connector according to any one of claims 4 to 6, characterized in that: The insulating support includes a plurality of vacant portions, the vacant portions passing through the insulating support, and the vacant portions are arranged corresponding to the connection rows so that the positive electrode connection portion and the negative electrode connection portion can face the outside of the insulating support.

8. The electrical connector according to claim 7, characterized in that: The electrical connector further comprises: An insulating cover is connected to the insulating support, and the insulating cover is arranged corresponding to the vacant portion to cover the vacant portion.

9. A battery assembly, characterized in that: The battery assembly comprises: A first battery cell, a second battery cell, and a connecting bar as claimed in any one of claims 1 to 3; or The battery assembly comprises a first battery cell, a second battery cell and an electrical connector according to any one of claims 4 to 8.

10. The battery assembly according to claim 9, characterized in that: The battery assembly further includes a plurality of battery cells, the plurality of battery cells include a first battery cell and a second battery cell, the first battery cell and the second battery cell are alternately arranged in a first direction, The positive connection portion of the connection row is electrically connected to the positive electrode column of the first battery cell, the negative connection portion of the connection row is electrically connected to the negative electrode column of the second battery cell, and the connection portion of the connection row is electrically connected to the shell of the first battery cell, so that the potentials of the shell of the first battery cell, the positive electrode column of the first battery cell, and the negative electrode column of the second battery cell are equal.

11. The battery assembly according to claim 10, characterized in that: The positive pole of the first battery cell and the negative pole of the second battery cell are oriented in the same direction.

12. The battery assembly according to claim 10 or 11, characterized in that: The positive pole and the negative pole of the battery cell are respectively located at two ends of the battery cell along a second direction, and the second direction intersects with the first direction.

13. The battery assembly according to claim 12, characterized in that: The connecting row is located outside the battery core in the second direction.

14. The battery assembly according to claim 13, characterized in that: The connecting portion is configured to extend outward from the body along a third direction intersecting the first direction and the second direction.

15. A battery pack, characterized in that: The battery pack comprises the battery assembly according to any one of claims 9 to 14.

16. A vehicle, characterized in that: The vehicle includes the battery pack of claim 15.

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