Electrical connection assembly, battery assembly, and electrical device

Abstract

The utility model discloses a kind of electric connection assembly, battery assembly and electric equipment, the electric connection assembly includes: insulating support and electric connector, the electric connector is fixed to the support, the electric connector is electrically connected with at least one battery cell, and the electric connector is also electrically connected with external element. Thus, by fixing the electric connector to the support, the support can support the electric connector, improve the structural stability of the electric connector, and can enhance the connection stability between the electric connector and the battery cell, so that the battery cell is not prone to open circuit or short circuit, and improve reliability.

Description

Technical Field

[0001] This utility model relates to the field of batteries, and in particular to an electrical connection component, a battery component, and an electrical device. Background Technology

[0002] With the development of the new energy industry, home energy storage products are gaining increasing support from users. Since home energy storage products are related to home safety, designing safe and reliable home energy storage products has become an important issue. Among related technologies, home energy storage products include battery cells; however, the connection structure between the battery cells and external components is often unstable, leaving room for improvement. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an electrical connection assembly that can improve the structural stability of the electrical connector and enhance the connection stability between the electrical connector and the battery cell, so that the battery cell is less prone to open circuits or short circuits.

[0004] An electrical connection assembly according to an embodiment of the present invention includes: an insulating support member; an electrical connector fixed to the support member, the electrical connector being electrically connected to at least one battery cell, and the electrical connector also being electrically connected to an external component.

[0005] According to the embodiment of the present utility model, the electrical connection assembly, by fixing the electrical connector to the support member, enables the support member to support the electrical connector, thereby improving the structural stability of the electrical connector and enhancing the connection stability between the electrical connector and the battery cell, so that the battery cell is less likely to experience open circuits or short circuits, thus improving reliability.

[0006] According to some embodiments of the present invention, the electrical connection assembly includes a connecting piece and a lead-out piece. The connecting piece is used to electrically connect at least two of the battery cells, and the lead-out piece is adapted to electrically connect with a portion of the battery cells. The lead-out piece extends beyond the edge of the support member to be adapted to electrically connect with external components.

[0007] According to some embodiments of the present invention, in the electrical connection assembly, the side of the support member facing the battery cell is a first side and the other side is a second side. The electrical connection member is fixed to the first side of the support member, and the second side of the support member is provided with a clearance hole for exposing the electrical connection member.

[0008] According to some embodiments of the present invention, the electrical connection assembly is welded to the battery cell.

[0009] According to some embodiments of the present invention, the battery cell is provided with a plug-in piece, the electrical connector is provided with a mounting hole, the electrical connector is provided with a plug-in portion located in the clearance hole, the plug-in portion forms a plug-in space communicating with the mounting hole, and the plug-in piece passes through the mounting hole and is plugged into the plug-in space.

[0010] According to some embodiments of the present invention, the plug portion has elastic pieces located on opposite sides of the mounting hole, and the plug space is defined between the two elastic pieces of the plug portion.

[0011] The electrical connection assembly according to some embodiments of the present invention further includes: a protective cover plate, the protective cover plate being connected to the support member and located on the second side of the support member, the protective cover plate being used to cover the plug portion.

[0012] According to some embodiments of the present invention, in the electrical connection assembly, the protective cover plate is provided with a fixing block on the side facing the support member, and the fixing block is provided on the side of the two elastic pieces of the plug portion facing away from each other and abuts against the elastic pieces for limiting.

[0013] According to some embodiments of the present invention, in the electrical connection assembly, at least a portion of the fixing block extends obliquely away from the elastic sheet in a direction away from the support member.

[0014] According to some embodiments of the present invention, in the electrical connection assembly, the support member is provided with a first snap-fit ​​portion, and the protective cover is provided with a second snap-fit ​​portion, wherein the first snap-fit ​​portion and the second snap-fit ​​portion are snap-fitted together.

[0015] The electrical connection assembly according to some embodiments of the present invention further includes an information sampling element, which is disposed on a first side of the support member and electrically connected to the electrical connection element.

[0016] The electrical connection assembly according to some embodiments of the present invention further includes a heat insulation sheet, which is connected to the support member and is used to insulate the information sampling member from the battery cell.

[0017] The electrical connection assembly according to some embodiments of the present invention further includes a sampling connector, which is disposed on the second side of the support member. The support member is provided with a connection hole, and the information sampling element passes through the connection hole and is connected to the sampling connector.

[0018] According to some embodiments of the present invention, in the electrical connection assembly, the support member is provided with a sampling fixing part, which is fixedly connected to the sampling connector.

[0019] According to some embodiments of the present invention, in the electrical connection assembly, the information sampling element is integrally formed on the surface of the support element by a laser direct forming process.

[0020] The electrical connection assembly according to some embodiments of the present invention further includes a temperature sensor connected to the electrical connection member, and the information sampling member is electrically connected to the temperature sensor.

[0021] According to some embodiments of the present invention, in the electrical connection assembly, the support member is provided with a support rib, and the support rib is matched with the battery cell for limiting.

[0022] According to some embodiments of the present invention, the support member and the electrical connector are integrally injection molded.

[0023] This utility model also proposes a battery assembly.

[0024] A battery assembly according to an embodiment of the present invention includes: a battery cell and an electrical connection assembly according to any of the above embodiments, wherein the battery cell is electrically connected to the electrical connection assembly.

[0025] This utility model also proposes an electrical device.

[0026] The electrical device according to an embodiment of the present invention includes: a battery assembly according to any of the above embodiments.

[0027] The battery assembly, the electrical device, and the electrical connection assembly have the same advantages over the prior art, and will not be repeated here.

[0028] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0029] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0030] Figure 1 This is a top view of a battery assembly according to an embodiment of the present utility model;

[0031] Figure 2 yes Figure 1 An exploded view of the battery assembly shown;

[0032] Figure 3 yes Figure 2 An exploded view of the electrical connection assembly shown;

[0033] Figure 4 yes Figure 1Sectional view at point AA;

[0034] Figure 5 yes Figure 4 A magnified view of a section at point B in the middle;

[0035] Figure 6 This is a top view of a battery assembly according to another embodiment of the present invention;

[0036] Figure 7 yes Figure 6 An exploded view of the battery assembly shown;

[0037] Figure 8 yes Figure 6 Sectional view at CC;

[0038] Figure 9 yes Figure 8 A magnified view of a section at point D;

[0039] Figure 10 yes Figure 6 An exploded view of the electrical connection assembly shown;

[0040] Figure 11 yes Figure 3 A partial schematic diagram of the support member shown.

[0041] Figure label:

[0042] Battery assembly 100;

[0043] Cell 1; Terminal post 11; Welding boss 12; Connector 13;

[0044] Electrical connection assembly 2; electrical connector 21; connecting piece 211; lead-out piece 212; mounting hole 213; insertion part 214; elastic piece 2141; insertion space 2142;

[0045] Support member 22; First side 22a of the support member; Second side 22b of the support member; Clearance hole 221; Support rib 222; Locking hole 223; Sampling fixing part 224; Connecting hole 225;

[0046] Information sampling component 23; heat insulation sheet 24; sampling connector 25;

[0047] Temperature sensor 26; Protective cover 27; Fixing block 271; Buckle 272; Limiting space 273;

[0048] 3. Shell 3; end plate 31; edge pull plate 32; middle pull plate 33. Detailed Implementation

[0049] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0050] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0051] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0052] Hereinafter, with reference to the accompanying drawings, an electrical connection component 2 according to an embodiment of the present invention will be described.

[0053] like Figures 1-11 As shown, the electrical connection assembly 2 according to an embodiment of the present invention includes: an insulating support member 22 and an electrical connection member 21. The electrical connection member 21 is fixed to the support member 22, the electrical connection member 21 is electrically connected to at least one battery cell 1, and the electrical connection member 21 is also electrically connected to an external component.

[0054] First, such as Figures 1-3 As shown, the electrical connection assembly 2 includes a support member 22 and an electrical connector 21. The support member 22 can be made of insulating materials such as rubber or plastic. The electrical connector 21 is fixed to the support member 22, such as by adhesive bonding, hot pressing, or integral molding.

[0055] The device may be configured to connect an electrical connector 21 to at least one battery cell 1, and may also be configured to connect the electrical connector 21 to an external component. For example, multiple battery cells 1 may be connected in series via the electrical connector 21, and the electrical connector 21 may be connected to an external component, so that multiple battery cells 1 can be charged and discharged together.

[0056] According to the embodiment of the present utility model, the electrical connection assembly 2 fixes the electrical connector 21 to the support member 22, so that the support member 22 can support the electrical connector 21, thereby improving the structural stability of the electrical connector 21 and enhancing the connection stability between the electrical connector 21 and the battery cell 1, so that the battery cell 1 is less likely to have an open circuit or short circuit, thus improving reliability.

[0057] In some embodiments of this utility model, the electrical connector 21 includes a connecting piece 211 and a lead-out piece 212. The connecting piece 211 is used to electrically connect at least two battery cells 1, and the lead-out piece 212 is adapted to electrically connect with a portion of the battery cells 1. The lead-out piece 212 extends out of the edge of the support member 22 to be adapted to electrically connect with external components.

[0058] For example, refer to Figures 1-3 As shown, the electrical connector 21 includes a connecting piece 211 and a lead-out piece 212. The connecting piece 211 and the lead-out piece 212 are made of a metal with good electrical conductivity, such as silver, copper, aluminum, etc. The connecting piece 211 and the lead-out piece 212 are spaced apart. The connecting piece 211 is used to electrically connect at least two battery cells 1. The lead-out piece 212 is adapted to electrically connect with a portion of the battery cells 1. The lead-out piece 212 extends out of the edge of the support member 22 to be adapted to electrically connect with external components.

[0059] For example, multiple connecting pieces 211 can be provided. The connecting pieces 211 are used to electrically connect the terminals 11 of adjacent batteries to connect multiple battery cells 1 in series. The terminals 11 of the two battery cells 1 located at the ends are electrically connected to the lead-out piece 212 respectively. The lead-out piece 212 extends out of the edge of the support member 22 to be suitable for electrical connection with external components, so that multiple battery cells 1 can be charged and discharged through the lead-out piece 212.

[0060] It is understandable that by fixing the connecting piece 211 and the lead-out piece 212 together on the support member 22, the connecting piece 211 and the lead-out piece 212 can be integrated into one unit, reducing the number of structural parts of the battery assembly 100, which helps to reduce assembly steps, reduce the assembly difficulty of the battery assembly 100, and improve the assembly efficiency of the battery assembly 100.

[0061] In addition, since the positions of the connecting piece 211 and the lead piece 212 relative to the support member 22 remain fixed, there is no need to manually adjust the positions of the connecting piece 211 and the lead piece 212 during the installation of the electrical connection assembly 2. Only manual assembly is required when the lead piece 212 is connected to the external components, which greatly reduces the probability of short circuit in the battery assembly 100 during the assembly process.

[0062] In some embodiments of this utility model, such as Figures 2-5 As shown, the side of the support member 22 facing the battery cell 1 can be designated as the first side 22a and the other side as the second side 22b. The electrical connector 21 can be fixed to the first side 22a of the support member 22, and a clearance hole 221 is provided on the second side 22b of the support member 22. The clearance hole 221 is arranged opposite to the terminal post 11 of the battery cell 1 and is used to expose the electrical connector 21.

[0063] It is understandable that by placing the electrical connector 21 on the first side 22a of the support member 22 and providing a clearance hole 221 on the second side 22b of the support member 22, both sides of the electrical connector 21 can be exposed, which can prevent the support member 22 from obstructing the installation of the electrical connector 21, reduce the installation difficulty of the electrical connection assembly 2, and facilitate the observation of the installation status of the electrical connector 21, so as to ensure that the electrical connector 21 can be installed in place and improve the structural stability of the battery assembly 100.

[0064] In some embodiments of this utility model, the electrical connector 21 is welded to the battery cell 1. Specifically, as shown... Figures 4-5 As shown, a welding boss 12 can be provided on the pole post 11 of the battery cell 1, and the electrical connector 21 is supported on the welding boss 12. The electrical connector 21 and the welding boss 12 can be welded together by through-welding through the clearance hole 221.

[0065] The above settings can improve the connection stability between the electrical connector 21 and the battery cell 1, simplify the structure of the electrical connector 21, reduce the processing difficulty of the electrical connection assembly 2, and improve the practicality of the electrical connection assembly 2.

[0066] In some embodiments of this utility model, the battery cell 1 is provided with a plug-in piece 13, the electrical connector 21 is provided with a mounting hole 213, the electrical connector 21 is provided with a plug-in portion 214 located in the clearance hole 221, the plug-in portion 214 forms a plug-in space 2142 communicating with the mounting hole 213, and the plug-in piece 13 passes through the mounting hole 213 and is plugged into the plug-in space 2142.

[0067] For example, refer to Figures 6-9As shown, a connector 13 can be provided on the terminal 11 of the battery cell 1. The connector 13 protrudes outward, and the electrical connector 21 has a mounting hole 213 corresponding to the connector 13. The mounting hole 213 penetrates the electrical connector 21 along its thickness direction. The side of the electrical connector 21 away from the battery cell 1 has a plug-in portion 214, which is located inside the clearance hole 221. A plug-in space 2142 is formed inside the plug-in portion 214, and the plug-in space 2142 communicates with the mounting hole 213. The connector 13 can penetrate the mounting hole 213 and be plugged into the plug-in space 2142 to connect the electrical connector 21 to the terminal 11 of the battery cell 1.

[0068] The above settings simplify the installation steps of the electrical connection component 2, reduce the installation difficulty of the electrical connection component 2, and make the electrical connection component 2 detachable from the battery cell 1, which is conducive to subsequent maintenance and improves the practicality of the electrical connection component 2.

[0069] Of course, this utility model is not limited to this; the plug-in piece 13 and the mounting hole 213 can also be configured to have an interference fit. This eliminates the need for the plug-in part 214, simplifying the structure of the electrical connection assembly 2 and reducing costs.

[0070] In some embodiments of this utility model, such as Figure 9 As shown, the plug-in portion 214 has two elastic pieces 2141 located on opposite sides of the mounting hole 213. A plug-in space 2142 is defined between the two elastic pieces 2141, and the plug-in piece 13 is inserted into the plug-in space 2142 to be fixed between the two elastic pieces 2141. This simplifies the structure of the plug-in portion 214 and improves the installation stability of the electrical connection assembly 2.

[0071] In some embodiments of this utility model, such as Figures 6-9 As shown, the electrical connection assembly 2 of this utility model embodiment further includes: a protective cover plate 27, which is connected to the support member 22 and located on the second side 22b of the support member 22. The protective cover plate 27 is used to cover the plug-in portion 214.

[0072] The above-mentioned design can prevent external structures from squeezing or damaging the plug-in portion 214, which helps to ensure the structural stability of the plug-in portion 214, improves the connection stability between the electrical connection component 2 and the battery cell 1, and improves the structural stability of the battery assembly 100.

[0073] In some embodiments of this utility model, such as Figures 9-10As shown, a fixing block 271 can be provided on the side of the protective cover plate 27 facing the support member 22. The protective cover plate 27 is provided with two fixing blocks 271 for each plug part 214. The two fixing blocks 271 are respectively provided on the side of the two elastic pieces 2141 of the plug part 214 away from each other. A limiting space 273 is formed between the two fixing blocks 271. The plug part 214 extends into the limiting space 273, and the side of the two elastic pieces 2141 away from each other is respectively abutted against the fixing block 271 for limiting.

[0074] With the above settings, when the battery assembly 100 is impacted, the fixed block 271 can support the elastic sheet 2141 to prevent the elastic sheet 2141 from deforming and causing unstable connection between the electrical connection assembly 2 and the cell 1, thereby improving the reliability of the battery assembly 100.

[0075] In some embodiments of this utility model, such as Figure 9 As shown, at least a portion of the fixing block 271 extends obliquely away from the elastic sheet 2141 in a direction away from the support member 22, so as to construct the limiting space 273 as an flared shape. As a result, the insertion part 214 can be easily extended into the limiting space 273, reducing the difficulty of installing the protective cover 27.

[0076] In some embodiments of this utility model, such as Figure 10 As shown, a first snap-fit ​​portion can be provided on the support member 22, and a second snap-fit ​​portion can be provided on the protective cover plate 27. The first snap-fit ​​portion and the second snap-fit ​​portion are snapped together to detachably connect the protective cover plate 27 and the support member 22. This reduces the installation difficulty of the protective cover plate 27, facilitates the assembly difficulty of the electrical connection assembly 2, and makes subsequent maintenance easier.

[0077] In some embodiments of this utility model, such as Figure 10 As shown, one of the first and second latching portions can be configured as a latching hole 223, and the other as a latch 272, with the latch 272 engaging with the latching hole 223. Exemplarily, the first latching portion can be configured as a latching hole 223, and the second latching portion as a latch 272; or, the first latching portion can be configured as a latch 272, and the second latching portion as a latching hole 223. This invention does not limit the scope of the application. This simplifies the structure of the electrical connection assembly 2.

[0078] In some embodiments of this utility model, such as Figure 10 As shown, the first snap-fit ​​portion and the plug-in portion 214 can be positioned close together. This makes the fit between the fixing block 271 and the plug-in portion 214 more stable, improving the structural stability of the plug-in portion 214.

[0079] In some embodiments of this utility model, such as Figures 2-3 As shown, the electrical connection component 2 of this utility model embodiment also includes an information sampling component 23. The information sampling component 23 is disposed on the first side 22a of the support component 22 and is electrically connected to the electrical connection component 21. The information sampling component 23 can be used to collect the voltage of the cell 1 in order to monitor the status of the battery assembly 100 in real time.

[0080] It is understandable that by setting the information sampling component 23 on the support component 22, an integrated design can be achieved, which helps to reduce the number of structural components of the battery component 100, reduce the assembly difficulty of the battery component 100, and improve the assembly efficiency of the battery component 100.

[0081] In some embodiments of this utility model, such as Figure 3 As shown, the electrical connection assembly 2 of this embodiment further includes a heat insulation sheet 24. The heat insulation sheet 24 is located on the first side 22a of the support member 22 and is connected to the support member 22. The heat insulation sheet 24 is used to insulate and separate the information sampling member 23 from the battery cell 1. Specifically, the heat insulation sheet 24 can be made of insulating and heat-insulating materials such as mica and ceramics.

[0082] With the above settings, the heat insulation sheet 24 can be used to protect the information sampling component 23, so as to prevent the high-temperature electrolyte from being sprayed directly onto the information sampling component 23 when the battery cell 1 experiences thermal runaway. This helps to delay thermal runaway, reduce damage to the battery assembly 100, and improve the practicality of the electrical connection component 2.

[0083] In some embodiments of this utility model, such as Figure 11 As shown, the electrical connection assembly 2 of this utility model embodiment also includes a sampling connector 25. The sampling connector 25 is disposed on the second side 22b of the support member 22. The support member 22 is provided with a connection hole 225. The information sampling member 23 passes through the connection hole 225 and is connected to the sampling connector 25.

[0084] It is understandable that by setting up the sampling connector 25, the information sampling component 23 can be electrically connected to the management unit of the battery assembly 100 through the sampling connector 25. The management unit can obtain the information of the cell 1 and control the working state of the battery assembly 100 according to the information. Furthermore, by setting the sampling connector 25 to be located on the second side 22b of the support member 22, the sampling connector 25 can be easily connected to the management unit, reducing the assembly difficulty of the battery assembly 100.

[0085] In some embodiments of this utility model, such as Figure 11As shown, a sampling fixing part 224 can be provided on the support member 22. The sampling fixing part 224 is made of metal material and is fixedly connected to the sampling connector 25. For example, the sampling fixing part 224 can be glued or welded to the sampling connector 25. This provides stable support for the sampling connector 25 and improves the installation stability of the sampling connector 25.

[0086] In some embodiments of this invention, the information sampling component 23 can be integrally formed onto the surface of the support component 22 using a laser direct forming process, i.e., the information sampling component 23 is formed by laser encapsulation on the surface of the support component 22. This allows for a wireless design, avoiding messy wiring and difficulties in securing wires, and reducing the processing difficulty of the electrical connection component 2.

[0087] In some embodiments of this utility model, such as Figure 3 As shown, the electrical connection assembly 2 of this embodiment further includes a temperature sensor 26, which is connected to the electrical connector 21. The information sampling component 23 is electrically connected to the temperature sensor 26. It should be noted that the temperature sensor 26 and the electrical connector 21 can be connected by welding.

[0088] Specifically, multiple temperature sensors 26 can be configured, with some temperature sensors 26 connected to the connecting piece 211 and other temperature sensors 26 connected to the lead-out piece 212. The information sampling unit 23 is electrically connected to multiple temperature sensors 26 respectively, so that the information sampling unit 23 can monitor the temperature of multiple battery cells 1 simultaneously.

[0089] It is understandable that by placing the temperature sensor 26 on the electrical connector 21, an integrated design can be achieved, which helps to simplify the structure of the battery pack 100 and reduce the assembly difficulty of the battery pack 100.

[0090] In some embodiments of this utility model, such as Figures 3-5 As shown, a support rib 222 can be provided on the first side 22a of the support member 22, and the support rib 222 is used to limit the engagement with the battery cell 1. This can improve the installation stability of the electrical connection assembly 2 and improve the structural stability of the battery assembly 100.

[0091] Furthermore, such as Figure 3 As shown, the structure of the supporting rib 222 can be designed to separate the unconnected terminals 11 of adjacent cells 1. This avoids short circuits between adjacent cells 1 and improves the safety of the battery assembly 100.

[0092] In some embodiments of this utility model, the support member 22 and the electrical connector 21 can be integrally injection molded. This reduces the processing difficulty of the electrical connector assembly 2, improves the structural stability of the electrical connector assembly 2, and enhances the reliability of the battery assembly 100.

[0093] This utility model also proposes a battery assembly 100.

[0094] like Figure 1 As shown, the battery assembly 100 according to an embodiment of the present utility model includes: a battery cell 1 and an electrical connection assembly 2 according to any of the above embodiments, wherein the battery cell 1 is electrically connected to the electrical connection 21.

[0095] According to the embodiment of the present utility model, the battery assembly 100 has good reliability of electrical connection components, which improves the practicality of the battery assembly 100.

[0096] In some embodiments of this utility model, such as Figures 1-2 As shown, the battery assembly 100 can be a battery module. The battery module includes multiple cells 1, a housing 3, and an electrical connection assembly 2. The housing 3 includes an end plate 31, an edge pull plate 32, and a middle pull plate 33. The housing 3 has end plates 31 at both ends along its length and edge pull plates 32 on both sides along its width. The end plates 31 are connected to the middle pull plates 33 on both sides along the vertical direction. The middle pull plates 33 are used to fix the end plates 31 and the edge pull plates 32 together. The end plates 31, the middle pull plates 33, and the edge pull plates 32 can jointly define an installation space with an open opening.

[0097] The battery cell 1 is installed in the installation space. The battery cell 1 is divided into at least two groups, arranged sequentially along the width of the housing 3. Multiple cells 1 in each group are arranged sequentially along the length of the housing 3. Adjacent groups of cells 1 are separated by epoxy boards, allowing one group of cells 1 to be evenly supported on the other group when the battery assembly 100 is placed on its side. Silicone buffer pads are provided between adjacent cells 1 in the same group to ensure expansion gaps between adjacent cells 1. Buffer foam is provided between the cell 1 and the end plate 31 to absorb dimensional tolerances of the battery, preventing the edge pull plate 32 and the middle pull plate 33 from failing to engage. A terminal post 11 is provided on the side of the battery cell 1 facing the open opening. An electrical connection assembly 2 is located at the open opening of the housing 3 and is used to close the open opening. The electrical connection assembly 2 is electrically connected to the terminal posts 11 of multiple cells 1, allowing multiple cells 1 to jointly supply power to the outside. This improves the design rationality of the battery module.

[0098] This utility model also proposes an electrical device.

[0099] The electrical device according to an embodiment of the present invention includes a battery assembly 100 according to any of the above embodiments. It should be noted that the electrical device can be a new energy vehicle, a hybrid vehicle, a drone, or other similar device.

[0100] According to the embodiments of the present invention, the electrical connection components of the electrical equipment have good reliability, which improves the practicality of the battery assembly 100 and helps to enhance the product competitiveness of the electrical equipment.

[0101] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0102] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An electrical connection assembly (2), characterized in that, include: Insulated support (22); Electrical connector (21) is fixed to the support (22), the electrical connector (21) is electrically connected to at least one battery cell (1), and the electrical connector (21) is also electrically connected to an external component.

2. The electrical connection assembly (2) according to claim 1, characterized in that, The electrical connector (21) includes a connecting piece (211) and a lead-out piece (212). The connecting piece (211) is used to electrically connect at least two of the battery cells (1), and the lead-out piece (212) is adapted to electrically connect with a portion of the battery cells (1). The lead-out piece (212) extends out of the edge of the support (22) to be adapted to electrically connect with external components.

3. The electrical connection assembly (2) according to claim 1, characterized in that, The support member (22) has a first side (22a) facing the battery cell (1) and a second side (22b) on the other side. The electrical connector (21) is fixed to the first side (22a) of the support member (22). The second side (22b) of the support member (22) is provided with a clearance hole (221) exposing the electrical connector (21).

4. The electrical connection assembly (2) according to claim 3, characterized in that, The electrical connector (21) is welded to the battery cell (1).

5. The electrical connection assembly (2) according to claim 3, characterized in that, The battery cell (1) is provided with a plug-in piece (13), the electrical connector (21) is provided with a mounting hole (213), the electrical connector (21) is provided with a plug-in portion (214) located in the clearance hole (221), the plug-in portion (214) forms a plug-in space (2142) communicating with the mounting hole (213), and the plug-in piece (13) passes through the mounting hole (213) and is plugged into the plug-in space (2142).

6. The electrical connection assembly (2) according to claim 5, characterized in that, The plug portion (214) has elastic pieces (2141) located on opposite sides of the mounting hole (213), and the plug space (2142) is defined between the two elastic pieces (2141) of the plug portion (214).

7. The electrical connection assembly (2) according to claim 6, characterized in that, Also includes: A protective cover (27) is connected to the support member (22) and located on the second side (22b) of the support member (22). The protective cover (27) is used to cover the insertion part (214).

8. The electrical connection assembly (2) according to claim 7, characterized in that, The protective cover (27) is provided with a fixing block (271) on the side facing the support member (22). The fixing block (271) is provided on the side of the two elastic pieces (2141) of the insertion part (214) facing away from each other and is limited and abutted against the elastic pieces (2141).

9. The electrical connection assembly (2) according to claim 8, characterized in that, At least a portion of the fixing block (271) extends obliquely away from the elastic sheet (2141) in a direction away from the support (22).

10. The electrical connection assembly (2) according to claim 7, characterized in that, The support member (22) is provided with a first snap-fit ​​part, and the protective cover plate (27) is provided with a second snap-fit ​​part, and the first snap-fit ​​part and the second snap-fit ​​part are snap-fitted together.

11. The electrical connection assembly (2) according to any one of claims 3-10, characterized in that, It also includes an information sampling component (23), which is disposed on the first side (22a) of the support (22) and electrically connected to the electrical connector (21).

12. The electrical connection assembly (2) according to claim 11, characterized in that, It also includes a heat insulation sheet (24), which is connected to the support member (22) and is used to insulate the information sampling member (23) from the battery cell (1).

13. The electrical connection assembly (2) according to claim 12, characterized in that, It also includes a sampling connector (25), which is located on the second side (22b) of the support member (22). The support member (22) is provided with a connection hole (225), and the information sampling member (23) passes through the connection hole (225) and is connected to the sampling connector (25).

14. The electrical connection assembly (2) according to claim 13, characterized in that, The support member (22) is provided with a sampling fixing part (224), which is fixedly connected to the sampling connector (25).

15. The electrical connection assembly (2) according to claim 11, characterized in that, The information sampling component (23) is integrally formed on the surface of the support component (22) by laser direct forming process.

16. The electrical connection assembly (2) according to claim 11, characterized in that, It also includes a temperature sensor (26), which is connected to the electrical connector (21), and the information sampling device (23) is electrically connected to the temperature sensor (26).

17. The electrical connection assembly (2) according to claim 1, characterized in that, The support member (22) is provided with a support rib (222), which is in a limiting fit with the battery cell (1).

18. The electrical connection assembly (2) according to claim 1, characterized in that, The support member (22) and the electrical connector (21) are integrally injection molded.

19. A battery assembly (100), characterized in that, include: The battery cell (1) and the electrical connection assembly (2) according to any one of claims 1-18, wherein the battery cell (1) is electrically connected to the electrical connection member (21).

20. An electrical appliance, characterized in that, include: The battery assembly (100) according to claim 19.

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