Installation limiting device of electric connection assembly

Abstract

The utility model relates to an installation limiting device of an electric connection assembly. The device comprises a plate-shaped main body, wherein the plate-shaped main body is provided with a first hollow area and a second hollow area which are adjacent to each other; the first hollow area is provided with a plurality of first limiting parts, the second hollow area is provided with a second limiting part, and the second limiting part extends in the arrangement direction of the first limiting parts; the second limiting part is communicated with each first limiting part through a third hollow part; wherein the first limiting part is used for limiting a first electric connecting piece of the battery module, the second limiting part is used for limiting a second electric connecting piece of the battery module, the second electric connecting piece is provided with an electric connecting part connected with the first electric connecting piece, and the third limiting part is used for limiting the electric connecting part. According to the scheme provided by the invention, the accuracy of the first electric connector and the second electric connector relative to the mounting position of the power battery can be improved.

Description

Technical Field

[0001] The present application relates to the field of new energy technology, and in particular to an installation limit device for an electrical connection assembly. Background Art

[0002] Aluminum bars and FPC are important electrical connection components in the assembly of power battery modules. They can effectively collect and transmit the current generated by the battery, ensuring that the current flows smoothly between the internal and external circuits of the battery system.

[0003] In the related art, aluminum bars and FPCs are generally integrated into a design through a plastic bracket. In the integrated design, the aluminum bars and FPCs are positioned and welded by limiting the plastic bracket and the battery cell poles. However, in a non-integrated battery structure in which the plastic bracket is eliminated for the aluminum bars and FPCs, it is difficult to position each aluminum bar and FPC at the same time during the welding process. Utility Model Content

[0004] In order to solve or partially solve the problems existing in the related art, the present application provides an installation limit device for an electrical connection assembly, which can improve the accuracy of the installation position of the first electrical connector and the second electrical connector relative to the power battery.

[0005] In a first aspect, the present application provides an installation and limiting device for an electrical connection assembly, comprising:

[0006] A plate-shaped body, wherein the plate-shaped body is provided with a first hollow area and a second hollow area adjacent to each other; the first hollow area is provided with a plurality of first limiting portions, the second hollow area is provided with a second limiting portion, the second limiting portion extending in the arrangement direction of the plurality of first limiting portions; the second limiting portion is connected to each of the first limiting portions via a third hollow portion;

[0007] Among them, the first limiting portion is used to limit the first electrical connector of the battery module, the second limiting portion is used to limit the second electrical connector of the battery module, the second electrical connector is provided with an electrical connecting portion connected to the first electrical connector, and the third limiting portion is used to limit the electrical connecting portion.

[0008] In one implementation, a protective plate is also included, and the second limiting portion is also used to install the protective plate, and the shape of the protective plate matches the second limiting portion; the protective plate is used to prevent welding spatter from falling from the second limiting portion to between the battery cells of the battery module.

[0009] In one implementation, the plate-like body is rectangular, the second limiting portion extends along the length direction of the rectangle, and the multiple first limiting portions are arranged at intervals along the length direction of the rectangle; the length of the second limiting portion is greater than or equal to the sum of the lengths of the multiple first limiting portions.

[0010] In one implementation, multiple groups of the first limiting parts and the second limiting parts are provided on the plate-like body, and the multiple groups of the first limiting parts and the second limiting parts respectively correspond to the multiple groups of battery cells, and the multiple groups of the first limiting parts and the second limiting parts are arranged along an arrangement direction perpendicular to the arrangement direction of the multiple first limiting parts; wherein, the second limiting part in each group is provided with the first limiting part on at least one side along the width direction.

[0011] In one implementation, the first limiting portion is rectangular; adjacent sides of the first limiting portion are respectively used to limit the first electrical connector in different directions; and / or

[0012] The second limiting portion is rectangular, and adjacent sides of the second limiting portion are respectively used to limit the second electrical connector in different directions.

[0013] In one implementation, the third limiting portion is provided at a preset position of adjacent sides of the first limiting portion and the second limiting portion, and both ends of the third limiting portion are connected to the first limiting portion and the second limiting portion respectively.

[0014] In one implementation, the width of the third limiting portion matches the electrical connection portion of the second electrical connector. When the electrical connection portion is accommodated in the third limiting portion, the two outer sides of the electrical connection portion respectively abut against the two inner sides of the third limiting portion.

[0015] In one implementation, the protective plate is detachably connected to the plate-shaped body.

[0016] In one implementation, the plate-shaped body is made of bakelite, and the protective plate is made of PC.

[0017] In one implementation, the first electrical connector is an aluminum bar, the second electrical connector is an FPC, and the electrical connection portion is a nickel sheet on the PFC.

[0018] The technical solution provided by this application may have the following beneficial effects:

[0019] The present application provides an installation limiting device, which includes a plate-shaped body, the plate-shaped body having adjacent first and second hollow areas; the first hollow area having a plurality of first limiting portions, the second hollow area having a second limiting portion, the second limiting portion extending in the arrangement direction of the plurality of first limiting portions; the second limiting portion being connected to each first limiting portion via a third hollow portion; wherein the first limiting portion is used to limit the first electrical connector of the battery module, the second limiting portion is used to limit the second electrical connector of the battery module, the second electrical connector having an electrical connection portion connected to the first electrical connector, and the third limiting portion is used to limit the electrical connection portion. During the electrical connection assembly process of the power battery, the first electrical connector, the second electrical connector and their electrical connection portions can be simultaneously limited, thereby improving the installation position accuracy of the first electrical connector and the second electrical connector relative to the power battery.

[0020] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0022] Figure 1 1 is a schematic structural diagram of an installation limit device for an electrical connection assembly according to an embodiment of the present application;

[0023] Figure 2 1 is a schematic structural diagram of a protective plate of an installation limit device of an electrical connection assembly shown in an embodiment of the present application;

[0024] Figure 3 1 is a schematic structural diagram of an installation limit device for an electrical connection assembly according to another embodiment of the present application;

[0025] Figure 4 It is a partially enlarged schematic diagram of an installation limit device of an electrical connection assembly shown in an embodiment of the present application.

[0026] Reference numerals: 100, plate-shaped main body; 110, first limiting portion; 120, second limiting portion; 130, third limiting portion; 111, first side; 112, second side; 200, protective plate. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. Instead, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0028] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The singular forms "a," "an," and "the" used in this application and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0029] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] In the description of this application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0031] Unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0032] In the related art, aluminum bars and FPCs are generally integrated using a plastic bracket. In this integrated design, the aluminum bars and FPCs are positioned and welded together by limiting the plastic bracket and the battery cell poles. However, in a non-integrated battery structure that eliminates the plastic bracket for the aluminum bars and FPCs, it is difficult to simultaneously position each aluminum bar and FPC during the welding process. To address the above issues, an embodiment of the present application provides an installation limiting device for an electrical connection assembly that can simultaneously limit the position of a first electrical connector and a second electrical connector, thereby improving the accuracy of the installation position of the first and second electrical connectors relative to the power battery.

[0033] The technical solutions of the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0034] Figure 1 1 is a schematic structural diagram of an installation limit device for an electrical connection assembly according to an embodiment of the present application; Figure 2 It is a structural schematic diagram of the protective plate of the installation limit device of the electrical connection assembly shown in the embodiment of the present application.

[0035] See also Figure 1 and Figure 2 The present application provides an installation limit device for an electrical connection assembly, including a plate-shaped main body 100, the plate-shaped main body 100 is provided with adjacent first hollow area and second hollow area; the first hollow area is provided with multiple first limit parts 110, and the second hollow area is provided with a second limit part 120, and the second limit part 120 extends in the arrangement direction of the multiple first limit parts 110; the second limit part 120 is connected to each first limit part 110 through a third limit part 130; wherein, the first limit part 110 is used to limit the first electrical connector of the battery module, the second limit part 120 is used to limit the second electrical connector of the battery module, the second electrical connector is provided with an electrical connection part connected to the first electrical connector, and the third limit part 130 is used to limit the electrical connection part.

[0036] The installation limiting device provided in the present application has a first limiting portion 110, a second limiting portion 120 and a third limiting portion 130 provided on the plate-shaped main body 100. The first limiting portion 110 is used to limit the first electrical connector of the battery module, the second limiting portion 120 is used to limit the second electrical connector of the battery module, and the third limiting portion 130 is used to limit the electrical connector. Therefore, during the assembly process of the power battery electrical connection component, the first electrical connector and the second electrical connector can be limited at the same time, thereby improving the installation position accuracy of the first electrical connector and the second electrical connector relative to the power battery.

[0037] The first limiting portion 110, the second limiting portion 120 and the third limiting portion 130 are through grooves opened on the plate-shaped main body 100 along the thickness direction of the plate-shaped main body 100. The first electrical connector is used to be welded to the pole of the battery cell, and the second electrical connector is used to be welded to the first electrical connector. Before the welding operation, the plate-shaped main body 100 is first placed on the top of the battery cell so that the multiple first limiting portions 110 are aligned one by one with the poles of the multiple battery cells in the vertical direction. After the first electrical connector is inserted into the first limiting portion 110, the first electrical connector can be positioned in the first limiting portion 110, so that the position of the first electrical connector and the battery cell pole will not deviate. After the second electrical connector is placed in the second limiting portion 120, the second electrical connector is limited in the second limiting portion 120, avoiding the position deviation of the second electrical connector. After the electrical connector is placed in the third limiting portion 130, the position deviation of the electrical connector can be avoided. In this way, the first electrical connector, the second electrical connector and their electrical connector can be limited at the same time, which can improve the overall position accuracy of the electrical connector assembly.

[0038] The plate-like body 100 of this embodiment is rectangular, the second limiting portion 120 extends along the length direction Y of the rectangle, and multiple first limiting portions 110 are arranged at intervals along the length direction Y of the rectangle. The length of the second limiting portion 120 is greater than or equal to the sum of the lengths of the multiple first limiting portions 110.

[0039] The shape of the first limiting portion 110 is matched with the shape of the first electrical connector. When the shape of the first electrical connector is a rectangle, the shape of the first limiting portion 110 is also set to a rectangle. After the first electrical connector is placed in the first limiting portion 110, the adjacent sides of the first limiting portion 110 are respectively used to limit the first electrical connector in different directions. For example, two adjacent side edges of the first electrical connector simultaneously abut against two adjacent inner side edges of the first limiting portion 110. For example, the first side edge 111 and the second side edge 112 of the first limiting portion 110 are adjacent, the first side edge 111 limits one side edge of the first electrical connector, and the second side edge 112 limits the other adjacent side edge of the first electrical connector.

[0040] The second limiting portion 120 is rectangular, and the adjacent sides of the second limiting portion 120 are respectively used to limit the second electrical connector in different directions. The length of the second limiting portion 120 is greater than or equal to the sum of the lengths of the plurality of first limiting portions 110.

[0041] In some embodiments, the third limiting portion 130 is disposed at a predetermined position adjacent to the first limiting portion 110 and the second limiting portion 120, with both ends of the third limiting portion 130 connected to the first limiting portion 110 and the second limiting portion 120, respectively. The position of the third limiting portion 130 can be configured to coordinate with the position of the electrical connector on the FPC. The width of the third limiting portion 130 matches the electrical connector of the second electrical connector. When the electrical connector is received in the third limiting portion 130, the outer edge of the electrical connector abuts the inner edge of the third limiting portion 130, preventing the electrical connector from shifting left or right.

[0042] The first electrical connector of the battery module is a rigid conductive component connected to the battery cell; the second electrical connector is a flexible conductive component connected to the first conductive component. For example, the first electrical connector is an aluminum bar, the second electrical connector is an FPC, and the electrical connection portion is a nickel sheet on the PFC, which is used for welding to the aluminum bar. Multiple nickel sheets are provided on the FPC, and multiple first stoppers 110 are used to correspond to the multiple nickel sheets. Multiple nickel sheets extend from the same side of the FPC and can be simultaneously accommodated by multiple first stoppers 110, achieving simultaneous positioning of multiple nickel sheets.

[0043] Figure 3 1 is a schematic structural diagram of an installation limit device for an electrical connection assembly according to another embodiment of the present application; Figure 4 It is a partially enlarged schematic diagram of an installation limit device of an electrical connection assembly shown in an embodiment of the present application.

[0044] See also Figure 3 and Figure 4 In some embodiments, the limiting device of the present application further includes a protective plate 200. In addition to limiting the FPC, the second limiting portion 120 is also used to mount the protective plate 200. The shape of the protective plate 200 matches the second limiting portion 120. When the second limiting portion 120 is configured as a rectangle, the protective plate 200 is also configured as a rectangle. The protective plate 200 can block the area where the second limiting portion 120 is located. Since the battery cells are separated by the blue film, when welding the first electrical connector and the pole, the protective plate 200 can prevent welding spatter from falling into the gaps between the battery cells at the bottom of the plate-shaped body 100 and damaging the blue film, resulting in insulation failure between the battery cells.

[0045] In this embodiment, the protective plate 200 and the plate-like body 100 can be detachably assembled. When welding the first electrical connector, the protective plate can be installed in the second limiting portion 120 to prevent welding spatter from falling. After the welding of the first electrical connector is completed, the protective plate 200 can be removed to avoid affecting the limiting and welding of the FPC.

[0046] In some embodiments, a stepped structure is provided on the inner side of the second stopper 120. When the protective plate 200 is placed on the second stopper 120, the stepped structure can support the side of the protective plate in the vertical direction. At the same time, the inner side of the second stopper 120 can limit the outer side of the protective plate 200, thereby ensuring that the protective plate 200 has better positional stability relative to the plate-shaped body 100. In addition, the bottom of the protective plate is supported by the top of the battery cell, so that the protective plate and the plate-shaped body 100 are substantially in the same plane. This reduces the gap between the protective plate and the plate-shaped body 100, preventing welding spatter from falling through the gap.

[0047] In some embodiments, the plate-shaped body 100 is provided with multiple groups of first limiting portions 110 and second limiting portions 120, and the multiple groups of first limiting portions 110 and second limiting portions 120 are respectively provided corresponding to multiple groups of battery cells, wherein the second limiting portion 120 in each group is provided with a first limiting portion 110 on at least one side along the width direction X, for example, Figure 1 In the example, each set of second limiting portions 120 is provided with first limiting portions 110 on both sides along the width direction X. Multiple sets of first limiting portions 110 and second limiting portions 120 are arranged perpendicular to the arrangement direction of the multiple first limiting portions 110. This allows for limiting the position of the first and second electrical connectors of multiple battery cells during welding. Accordingly, multiple protective plates are also provided, and each of the multiple second limiting portions 120 can accommodate a protective plate 200.

[0048] In some embodiments, the plate-like body 100 can be made of the same material or different materials. When different materials are used, the plate-like body 100 is made of bakelite, which is abbreviated as PF (phenol formaldehyde plastic). During the welding process of the electrical connection components, bakelite has better support strength, insulation, and high temperature resistance. The material of the plate-like body 100 is not limited to bakelite, but can also be other materials with similar properties to bakelite. The material of the protective plate is PC (Polycarbonate), but is not limited to this, and can also be other materials with similar properties to PC.

[0049] The embodiments of the present application have been described above. The above description is illustrative and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to the technology in the market, or to enable other persons skilled in the art to understand the embodiments disclosed herein.

Claims

1. An installation limit device for an electrical connection assembly, characterized in that: include: A plate-shaped body, wherein the plate-shaped body is provided with a first hollow area and a second hollow area adjacent to each other; the first hollow area is provided with a plurality of first limiting portions, the second hollow area is provided with a second limiting portion, the second limiting portion extending in the arrangement direction of the plurality of first limiting portions; the second limiting portion is connected to each of the first limiting portions via a third limiting portion; Among them, the first limiting portion is used to limit the first electrical connector of the battery module, the second limiting portion is used to limit the second electrical connector of the battery module, the second electrical connector is provided with an electrical connecting portion connected to the first electrical connector, and the third limiting portion is used to limit the electrical connecting portion.

2. The installation and limiting device of the electrical connection assembly according to claim 1, characterized in that: It also includes a protective plate, and the second limiting portion is also used to install the protective plate. The shape of the protective plate matches the second limiting portion, and the protective plate is used to prevent welding spatter from falling from the second limiting portion to between the battery cells of the battery module.

3. The installation and limiting device of the electrical connection assembly according to claim 1, characterized in that: The plate-like body is rectangular, the second limiting portion extends along the length direction of the rectangle, and the multiple first limiting portions are arranged at intervals along the length direction of the rectangle; the length of the second limiting portion is greater than or equal to the sum of the lengths of the multiple first limiting portions.

4. The installation and limiting device of the electrical connection assembly according to claim 3, characterized in that: The plate-shaped body is provided with multiple groups of the first limiting parts and the second limiting parts, and the multiple groups of the first limiting parts and the second limiting parts respectively correspond to the multiple groups of battery cells, wherein the second limiting parts in each group are provided with multiple first limiting parts along at least one side of the width direction of the rectangle.

5. The installation and limiting device of the electrical connection assembly according to claim 1, characterized in that: The first limiting portion is rectangular; adjacent sides of the first limiting portion are respectively used to limit the first electrical connector in different directions; and / or The second limiting portion is rectangular, and adjacent sides of the second limiting portion are respectively used to limit the second electrical connector in different directions.

6. The installation and limiting device of the electrical connection assembly according to claim 1, characterized in that: The third limiting portion is provided at a preset position of adjacent sides of the first limiting portion and the second limiting portion, and both ends of the third limiting portion are connected to the first limiting portion and the second limiting portion respectively.

7. The installation and limiting device of the electrical connection assembly according to claim 1, characterized in that: The width of the third limiting portion matches the electrical connection portion of the second electrical connector. When the electrical connection portion is received in the third limiting portion, the outer side of the electrical connection portion abuts against the inner side of the third limiting portion.

8. The installation and limiting device of the electrical connection assembly according to claim 2, characterized in that: The protective plate is detachably connected to the plate-shaped body.

9. The installation and limiting device of the electrical connection assembly according to claim 2, characterized in that: The material of the plate-shaped main body is bakelite, and the material of the protective plate is PC.

10. The installation limiting device of the electrical connection assembly according to any one of claims 1 to 9, characterized in that: The first electrical connector is an aluminum bar, the second electrical connector is an FPC, and the electrical connection portion is a nickel sheet on the PFC.

Images