Battery connecting assembly, high-voltage connecting assembly, battery pack and electric device

Abstract

The utility model discloses a battery connecting assembly, high pressure connecting assembly, battery pack and electric device, wherein, the battery connecting assembly includes connecting piece and adapter, and the connecting piece is suitable for with distribution box electricity is connected, and the one end of adapter is connected with connecting piece electricity, and the other end of adapter is suitable for with high pressure connector connection. The battery connecting assembly of utility model embodiment can reduce the connection difficulty between high pressure connector and distribution box to a certain extent, and guarantees the connection stability between high pressure connector and distribution box.

Description

Technical Field

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

[0002] In a battery pack system, the high-voltage connector is the "bridge" between the battery pack and the electrical device (such as a vehicle). The distribution box is the power distribution unit of the battery pack. The distribution box is responsible for distributing the high-voltage power in the battery pack to various circuits (such as charging circuits and discharging circuits). When the high-voltage connector and the distribution box are connected, a complete high-voltage power transmission path is formed from the battery cell to the external load.

[0003] The distribution box includes connectors, which are typically made of copper or aluminum. The high-voltage connector includes copper terminals. The connectors are connected to the copper terminals to achieve the connection between the high-voltage connector and the distribution box.

[0004] However, the connection between the connector and the copper terminal in the existing technology is difficult, which increases the difficulty of electrical connection between the high-voltage connector and the distribution box and reduces the efficiency of electrical connection. Utility Model Content

[0005] This utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the primary objective of this utility model is to provide a battery connection assembly that reduces the connection difficulty between the high-voltage connector and the distribution box to a certain extent, thus solving the technical problem of the high difficulty in connecting the high-voltage connector and the distribution box in the prior art.

[0006] The second objective of this invention is to provide a high-voltage connection assembly having the aforementioned battery connection components.

[0007] The third objective of this invention is to provide a battery pack having the aforementioned high-voltage connection components.

[0008] The fourth objective of this utility model is to provide an electrical device having the aforementioned battery pack.

[0009] A battery connection assembly according to an embodiment of the present invention includes: a connector adapted to be electrically connected to a distribution box; and an adapter, one end of which is electrically connected to the connector, and the other end of which is adapted to be connected to a high-voltage connector.

[0010] According to the battery connection assembly of this utility model embodiment, by setting the connector to be electrically connected to the distribution box and setting the opposite ends of the adapter to be electrically connected to the connector and the high-voltage connector respectively, it is convenient to realize the cooperative connection between the distribution box and the high-voltage connector using the battery connection assembly. This reduces the connection difficulty between the high-voltage connector and the distribution box to a certain extent, and makes it easier to ensure the connection stability between the high-voltage connector and the distribution box, which is beneficial to improving the working performance of the high-voltage connector and the distribution box.

[0011] In some embodiments, the two opposite ends of the adapter are welded to the connector and the high-voltage connector, respectively.

[0012] In some embodiments, the other end of the adapter is provided with a mating member adapted to connect with the high-voltage connector.

[0013] In some embodiments, the mating member is a connecting hole adapted to connect to the connecting terminal of the high-voltage connector, the connecting terminal having a connecting post, and the connecting hole adapted to accommodate at least a portion of the connecting post so that the other end of the adapter is connected to the high-voltage connector.

[0014] In some embodiments, the connecting hole is provided within a positioning element, and the connecting post is positioned and engaged with the positioning element.

[0015] In some embodiments, the positioning element is one of a positioning protrusion and a positioning groove, and the connecting post is provided with the other of the positioning protrusion and the positioning groove, wherein the positioning protrusion can be positioned and fitted in the positioning groove.

[0016] In some embodiments, the connecting hole is provided within a limiting member, and the connecting post is limited and engaged with the limiting member.

[0017] In some embodiments, the limiting member is disposed on the inner peripheral wall of the connecting hole, and the limiting member is one of a limiting protrusion and a limiting groove. The other of the limiting protrusion and the limiting groove is disposed on the outer peripheral wall of the connecting post, and the limiting protrusion can be limited and fitted in the limiting groove.

[0018] In some embodiments, the connecting post is made of copper, and the adapter and the connector are made of aluminum.

[0019] In some embodiments, the adapter and the connector overlap and engage.

[0020] In some embodiments, the overlap between the adapter and the connector is provided with an overlap protrusion and an overlap groove. The overlap protrusion can overlap and fit within the overlap groove. One of the adapter and the connector is provided with the overlap protrusion, and the other is provided with the overlap groove.

[0021] In some embodiments, both the overlapping protrusions and the overlapping grooves include a plurality of protrusions, the plurality of overlapping protrusions being arranged sequentially at intervals on one of the adapter and the connector, and the plurality of overlapping grooves being arranged sequentially at intervals on the other of the adapter and the connector.

[0022] A high-voltage connection assembly according to an embodiment of the present invention includes: a high-voltage connector; and a battery connection assembly, wherein the battery connection assembly is the aforementioned battery connection assembly, and the battery connection assembly is connected to the high-voltage connector via the adapter.

[0023] According to the embodiments of the present invention, the high-voltage connection assembly, by adopting the aforementioned battery connection assembly, can reduce the assembly difficulty of the high-voltage connection assembly to a certain extent and improve the performance of the high-voltage connection assembly.

[0024] A battery pack according to an embodiment of the present invention includes: a distribution box, which is connected in conjunction with a battery cell; and a high-voltage connection assembly, which is the aforementioned high-voltage connection assembly, and is connected to the distribution box via the connector.

[0025] According to the embodiments of the present invention, by employing the aforementioned high-voltage connection components, the assembly difficulty of the battery pack can be reduced to a certain extent, and the performance of the battery pack can be improved.

[0026] The electrical device according to an embodiment of the present invention includes the aforementioned battery pack.

[0027] According to the embodiments of the present invention, the performance of the electrical device can be improved to a certain extent by using the aforementioned battery pack.

[0028] Additional aspects and advantages of this invention will become apparent from the description which follows, or may be learned by practice of this 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 schematic diagram of a portion of the battery pack structure according to some embodiments of the present invention.

[0031] Figure 2 This is an exploded view of a high-voltage connection assembly according to some embodiments of the present invention.

[0032] Figure 3 This is a schematic diagram of the connecting column in some embodiments of the present invention.

[0033] Figure 4This is a schematic diagram of an adapter according to some embodiments of the present invention.

[0034] Figure 5 This is a schematic diagram of the adapter from another angle in some embodiments of the present invention.

[0035] Figure 6 for Figure 5 Enlarged view of the middle part of the structure.

[0036] Figure 7 This is a schematic diagram of the connectors in some embodiments of the present invention.

[0037] Figure 8 This is a schematic diagram of the connector from another angle in some embodiments of the present invention.

[0038] Figure label:

[0039] 3000, battery pack;

[0040] 2000, High-voltage connection assembly;

[0041] 1000. Battery connection assembly;

[0042] 100. Connector; 110. Overlapping protrusion;

[0043] 200. Adapter; 210. Mating part; 220. Overlap groove;

[0044] 300. Connecting column;

[0045] 410. Positioning protrusion; 420. Positioning groove;

[0046] 510. Limiting protrusion; 520. Limiting groove;

[0047] 1100 High-voltage connector; 1110 Connecting terminal;

[0048] 1200, Distribution Box. 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", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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.

[0051] The battery connection assembly 1000 of this utility model is described below with reference to the accompanying drawings.

[0052] like Figure 1 As shown, the battery connection assembly 1000 according to an embodiment of the present utility model includes: a connector 100 and an adapter 200.

[0053] Among them, such as Figure 1 As shown, connector 100 is adapted to be electrically connected to distribution box 1200. This facilitates the centralized extraction of electrical energy from battery cells (not shown) electrically connected to distribution box 1200, thereby enabling the distribution of electrical energy to external loads (such as motors or chargers).

[0054] It should be noted that the connector 100 is usually a large cross-sectional area metal busbar (such as copper busbar or aluminum busbar) so that the connector 100 can carry a large current of hundreds to thousands of amperes, thereby meeting the power transmission requirements of the battery pack 3000 system.

[0055] In the specific example, connector 100 is an aluminum busbar.

[0056] like Figure 1 As shown, one end of the adapter 200 is electrically connected to the connector 100, and the other end of the adapter 200 is adapted to connect to the high-voltage connector 1100. That is, the opposite ends of the adapter 200 are electrically connected to the connector 100 and the high-voltage connector 1100 respectively, reducing the difficulty of electrical connection between the connector 100 and the high-voltage connector 1100 to a certain extent. Since the connector 100 is adapted to be electrically connected to the distribution box 1200, the electrical connection between the high-voltage connector 1100 and the distribution box 1200 is realized, reducing the connection difficulty between the high-voltage connector 1100 and the distribution box 1200, and helping to ensure the connection stability between the high-voltage connector 1100 and the distribution box 1200, thus ensuring the working performance of the high-voltage connector 1100 and the distribution box 1200.

[0057] Meanwhile, by setting up the adapter 200 to realize the electrical connection between the high-voltage connector 1100 and the distribution box 1200, compared with directly connecting the adapter 100 to the high-voltage connector 1100, it can avoid the high-voltage connector 1100 pulling the distribution box 1200 through the adapter 100 during the connection process to a certain extent, thereby avoiding the displacement of the distribution box 1200 during the connection process. It can also avoid affecting the performance of the battery cells connected to the distribution box 1200 to a certain extent, thereby improving the working performance of the battery pack 3000.

[0058] As can be seen from the above structure, the battery connection assembly 1000 of this utility model realizes the electrical connection between the high-voltage connector 1100 and the distribution box 1200 through the interconnected adapter 200 and connector 100. This not only reduces the connection difficulty between the high-voltage connector 1100 and the distribution box 1200 to a certain extent and ensures the working performance of the high-voltage connector 1100 and the distribution box 1200, but also avoids the impact on the performance of the distribution box 1200 and the battery cells connected to the distribution box 1200 when the high-voltage connector 1100 and the distribution box 1200 are connected, thereby improving the working performance of the battery pack 3000.

[0059] It is understandable that, compared with the prior art, the battery connection assembly 1000 of this application, because it is equipped with an adapter 200 and a connector 100 that are interconnected, can reduce the connection difficulty between the distribution box 1200 and the high-voltage connector 1100 to a certain extent, and can also ensure the performance of the distribution box 1200 and the battery cells to a certain extent.

[0060] In some embodiments, the adapter 200 is made of aluminum, and the shape of the adapter 200 is not specifically limited in this application.

[0061] In a specific example, the adapter 200 of this application is made of materials such as 1060-H24 or 3003-H14.

[0062] It is worth noting that when assembling the battery pack 3000, the distribution box 1200 and the connector 100 can be understood as a single unit. The connector 100 and the high-voltage connector 1100 are fixedly connected by the adapter 200, which can reduce the connection difficulty of the distribution box 1200 and the high-voltage connector 1100 to a certain extent, enhance the feasibility of the battery pack 3000 assembly process, and is more suitable for the mass production line process of the battery pack 3000.

[0063] It should be noted that in the prior art, the distribution box 1200 and the high-voltage connector 1100 inside the battery pack 3000 are usually fixed and electrically connected by bolts. However, after the battery pack 3000 has been working for a period of time, the bolts are prone to loosening due to external impacts or vibrations. This leads to an increase in the contact resistance of the bolts at the connection between the distribution box 1200 and the high-voltage connector 1100, resulting in severe high temperatures during high-power charging and discharging of the battery pack 3000, posing a great safety risk to the electrical device.

[0064] To address the aforementioned issues, in some embodiments, the opposite ends of the adapter 200 are welded to the connector 100 and the high-voltage connector 1100, respectively. This not only enables electrical connection between the connector 100 and the high-voltage connector 1100 but also prevents the opposite ends of the adapter 200 from becoming loose after the battery pack 3000 has been operating for a period of time. This improves the connection quality between the connector 100 and the high-voltage connector 1100, thus solving the problem of easy loosening of bolts in existing technologies that use bolts for fixing.

[0065] It should also be noted that in the prior art, the connection terminal 1110 of the high-voltage connector 1100 is generally formed as a copper terminal. Due to the difference in thermal conductivity and melting point of copper and aluminum, it is difficult to control the parameters during welding, which will affect the welding quality of the adapter 200 and the high-voltage connector 1100.

[0066] Based on this, in some embodiments, the adapter 200 and the high-voltage connector 1100 are fixed together by brazing. That is, the other end of the adapter 200 is electrically connected to the high-voltage connector 1100 by brazing, which not only effectively realizes the electrical connection between the adapter 200 and the high-voltage connector 1100, but also ensures the connection quality between the adapter 200 and the high-voltage connector 1100.

[0067] In some embodiments, the adapter 200 and the connector 100 are fixed together by laser welding to achieve a welded fit between the adapter 200 and the connector 100.

[0068] In some embodiments, combined with Figure 2 , Figure 4 and Figure 5 As shown, the other end of the adapter 200 is provided with a mating part 210, which is adapted to be connected to the high-voltage connector 1100. The mating part 210 can reduce the difficulty of connecting the adapter 200 and the high-voltage connector 1100, so as to realize the connection between the adapter 200 and the high-voltage connector 1100.

[0069] In some embodiments, combined with Figure 1 , Figure 2 and Figure 3 As shown, the mating part 210 is a connecting hole adapted to connect to the connecting terminal 1110 of the high-voltage connector 1100. The connecting terminal 1110 is provided with a connecting post 300, and the connecting hole is adapted to accommodate at least a portion of the connecting post 300, so that the other end of the adapter 200 can be connected to the high-voltage connector 1100. By configuring the connecting hole to accommodate at least a portion of the connecting post 300, the mating connection between the connecting post 300 and the connecting hole is facilitated, thus reducing the connection difficulty between the connecting terminal 1110 and the adapter 200 to a certain extent, thereby reducing the connection difficulty between the high-voltage connector 1100 and the adapter 200.

[0070] In a specific example, the other end of the adapter 200 is welded to the connecting post 300. This ensures the stability of the connection between the other end of the adapter 200 and the connecting post 300 to a certain extent, enables the electrical connection between the adapter 200 and the high-voltage connector 1100, and reduces the difficulty of connecting the adapter 200 and the high-voltage connector 1100.

[0071] Meanwhile, this application avoids using bolts by welding the other end of the adapter 200 to the high-voltage connector 1100 through the connecting post 300, thereby achieving boltless connection. This, to a certain extent, avoids increasing the contact resistance at the connection between the connector 100 and the connecting terminal 1110, and further avoids the occurrence of severe high temperature during high-power charging and discharging of the battery pack 3000, thus ensuring the safety of the battery connection assembly 1000.

[0072] In summary, this application changes the connection between the connector 100 and the connection terminal 1110 from bolt fastening to welding, which simplifies the manufacturing process of the battery connection assembly 1000 to a certain extent, so as to facilitate the mass production of the battery connection assembly 1000. At the same time, the boltless design between the connector 100 and the connection terminal 1110 can also avoid the safety risks caused by bolt loosening after the battery pack 3000 has been working for a long time, thereby improving the safety and durability of the powertrain of the electrical device.

[0073] In some embodiments, the other end of the adapter 200 is brazed to the connecting post 300, which not only effectively realizes the electrical connection between the adapter 200 and the connecting post 300, but also ensures the connection quality between the adapter 200 and the connecting post 300.

[0074] In summary, the adapter 200 is mainly used to fix the connection with the connecting post 300 by brazing, and then fix the connection with the connector 100 by laser welding. This enables the boltless connection between the high-voltage connector 1100 and the distribution box 1200, forming a high-voltage connection between the high-voltage connector 1100 and the distribution box 1200 using a fully welded method.

[0075] In some embodiments, the connecting terminal 1110 and the connecting post 300 are integrally processed or welded to improve the connection strength between the connecting terminal 1110 and the connecting post 300, and facilitate the electrical connection between the adapter 200 and the connecting terminal 1110 using the connecting post 300.

[0076] In a specific example, the connecting terminal 1110 is a copper terminal, and the connecting post 300 is a copper post. The connecting terminal 1110 and the connecting post 300 are made of the same material and are tightly connected. Since electrochemical corrosion may occur when different materials are in contact (such as copper and aluminum contact is prone to oxidation), the above settings can ensure the stability of the conductivity of the connecting terminal 1110 and the connecting post 300 during long-term use to a certain extent.

[0077] In some embodiments, a positioning element is provided within the connecting hole, and the connecting post 300 is positioned and engaged with the positioning element. The positioning element can initially position the adapter 200 and the connecting post 300, which reduces the connection difficulty between the adapter 200 and the connecting post 300 to a certain extent, and can also ensure the positional accuracy of the adapter 200 and the connecting terminal 1110 during assembly to a certain extent.

[0078] In some embodiments, combined with Figure 3 and Figure 5 As shown, the positioning element is one of the positioning protrusion 410 and the positioning groove 420, and the other of the positioning protrusion 410 and the positioning groove 420 is provided on the connecting post 300. The positioning protrusion 410 can be positioned and fitted in the positioning groove 420. This enables rapid positioning of the connecting post 300 and the adapter 200, thereby enabling rapid positioning of the adapter 200 and the connecting terminal 1110 of the high-voltage connector 1100. This ensures that the adapter 200 and the connecting terminal 1110 maintain a certain positional stability during subsequent welding, improving the welding effect and reducing the welding difficulty.

[0079] In some embodiments, the protruding shape of the positioning protrusion 410 matches the recessed shape of the positioning groove 420, which enables the positioning protrusion 410 and the positioning groove 420 to fit tightly together, ensuring the positioning effect of the positioning protrusion 410 and the positioning groove 420.

[0080] It should be noted that the positioning element is one of the positioning protrusion 410 and the positioning groove 420, and the connecting post 300 is provided with the other of the positioning protrusion 410 and the positioning groove 420. It can be understood that when the positioning element is the positioning protrusion 410, the connecting post 300 is provided with the positioning groove 420, or when the positioning element is the positioning groove 420, the connecting post 300 is provided with the positioning groove 420.

[0081] In specific examples, combined Figure 3 and Figure 5 As shown, the positioning component is a positioning protrusion 410, and the connecting post 300 is provided with a positioning groove 420, thereby ensuring the positional accuracy of the positioning and connection between the adapter 200 and the connecting post 300 to a certain extent.

[0082] In some embodiments, the positioning groove 420 is an area for placing brazing flux, so as to fix the adapter 200 and the connecting post 300 together by brazing, thereby reducing the welding difficulty of the adapter 200 and the connecting post 300.

[0083] In some embodiments, a limiting member is provided within the connecting hole, and the connecting post 300 is limited and engaged with the limiting member. The limiting member limits the transition piece 200 and the connecting post 300, thereby preventing the transition piece 200 and the connecting post 300 from shaking or shifting to a certain extent. This ensures the positional stability of the transition piece 200 and the connecting post 300 during assembly and further reduces the welding difficulty of the transition piece 200 and the connecting post 300.

[0084] In some embodiments, combined with Figure 3 , Figure 5 and Figure 6 As shown, a limiting member is provided on the inner peripheral wall of the connecting hole. The limiting member is one of a limiting protrusion 510 and a limiting groove 520. The other limiting protrusion 510 and the limiting groove 520 are provided on the outer peripheral wall of the connecting post 300. The limiting protrusion 510 can be limited and fitted within the limiting groove 520. This achieves a limiting fit between the adapter 200 and the connecting post 300, and allows the adapter 200 and the connecting post 300 to be fixed together by mechanical assembly, thereby ensuring the relative positional stability of the adapter 200 and the connecting post 300 to a certain extent.

[0085] In some embodiments, the shapes of the limiting protrusion 510 and the limiting groove 520 are matched so that the connecting post 300 and the connecting hole can be effectively matched.

[0086] It should be noted that the limiting member is located on the inner peripheral wall of the connecting hole. The limiting member is one of the limiting protrusion 510 and the limiting groove 520. The other of the limiting protrusion 510 and the limiting groove 520 is located on the outer peripheral wall of the connecting post 300. It can be understood that when the limiting member is the limiting protrusion 510 located on the inner peripheral wall of the connecting hole, the limiting groove 520 is located on the outer peripheral wall of the connecting post 300; when the limiting member is the limiting groove 520 located on the inner peripheral wall of the connecting hole, the limiting protrusion 510 is located on the outer peripheral wall of the connecting post 300.

[0087] In specific examples, combined Figure 3 , Figure 5 and Figure 6As shown, the limiting protrusion 510 is provided on the outer peripheral wall of the connecting post 300, and the limiting groove 520 is provided on the inner peripheral wall of the connecting hole, thereby ensuring the limiting fit between the adapter 200 and the connecting post 300 to a certain extent.

[0088] It is worth noting that, by setting the positioning protrusion 410 and positioning groove 420, as well as the limiting protrusion 510 and limiting groove 520, this application ensures the initial positioning and limiting fit between the adapter 200 and the connecting post 300 to a certain extent, so that the adapter 200 and the connecting terminal 1110 can be tightly connected, so as to facilitate the subsequent brazing work of the adapter 200 and the connecting post 300.

[0089] In some embodiments, the connecting post 300 is made of copper, while the adapter 200 and connector 100 are made of aluminum. The connecting post 300 is made of copper to ensure good conductivity, while the adapter 200 and connector 100 are both made of aluminum. This allows the adapter 200 and connector 100 to have a certain level of conductivity while also reducing their cost.

[0090] In some embodiments, combined with Figure 1 and Figure 2 As shown, the adapter 200 and the connector 100 overlap. This not only facilitates welding of the adapter 200 and the connector 100, but also increases the welding area between the adapter 200 and the connector 100, thereby improving the connection quality between the adapter 200 and the connector 100.

[0091] In some embodiments, combined with Figures 2-8 As shown, the overlap between the adapter 200 and the connector 100 is provided with an overlap protrusion 110 and an overlap groove 220. The overlap protrusion 110 can overlap and fit within the overlap groove 220. One of the adapter 200 and the connector 100 is provided with the overlap protrusion 110, and the other is provided with the overlap groove 220. This achieves the overlap fit between the adapter 200 and the connector 100, reduces the difficulty of overlapping the adapter 200 and the connector 100, and also facilitates the limiting fit at the overlap of the adapter 200 and the connector 100, making the relative position of the adapter 200 and the connector 100 stable, which is convenient for subsequent laser welding of the adapter 200 and the connector 100.

[0092] In some embodiments, the protruding shape of the overlapping protrusion 110 and the groove shape of the overlapping groove 220 match each other, which can ensure that the adapter 200 and the connector 100 are accurately aligned and positioned during installation to a certain extent, thereby avoiding misalignment between the adapter 200 and the connector 100 and reducing the difficulty of connecting the adapter 200 and the connector 100.

[0093] It should be noted that one of the adapter 200 and the connector 100 is provided with an overlapping protrusion 110 and the other is provided with an overlapping groove 220. It can be understood that when the adapter 200 is provided with an overlapping protrusion 110, the connector 100 is provided with an overlapping groove 220, or when the adapter 200 is provided with an overlapping groove 220, the connector 100 is provided with an overlapping protrusion 110.

[0094] In some embodiments, combined with Figure 4 and Figure 8 As shown, both the overlapping protrusions 110 and the overlapping grooves 220 include multiple portions. Multiple overlapping protrusions 110 are arranged sequentially at intervals on one of the adapter 200 and the connector 100, and multiple overlapping grooves 220 are arranged sequentially at intervals on the other of the adapter 200 and the connector 100. The cooperation of the multiple spaced overlapping protrusions 110 and the multiple spaced overlapping grooves 220 increases the overlapping area and overlapping strength of the adapter 200 and the connector 100, thereby improving the accuracy of the overlapping positioning and engagement of the adapter 200 and the connector 100 to a certain extent.

[0095] It should be noted that the multiple overlapping protrusions 110 are arranged sequentially at intervals on one of the adapter 200 and the connector 100, and the multiple overlapping grooves 220 are arranged sequentially at intervals on the other of the adapter 200 and the connector 100. This can be understood as follows: when the multiple overlapping protrusions 110 are arranged sequentially at intervals on the adapter 200, the multiple overlapping grooves 220 are arranged sequentially at intervals on the connector 100; or, when the multiple overlapping protrusions 110 are arranged sequentially at intervals on the connector 100, the multiple overlapping grooves 220 are arranged sequentially at intervals on the adapter 200.

[0096] In specific examples, combined Figure 4 and Figure 8 As shown, multiple overlapping protrusions 110 are arranged sequentially and spaced apart on the connector 100. An overlapping groove 220 is formed between two adjacent overlapping protrusions 110 on the connector 100. Multiple overlapping grooves 220 are arranged sequentially and spaced apart on the adapter 200. An overlapping protrusion 110 is formed between two adjacent overlapping grooves 220 on the adapter 200. The overlapping protrusions 110 on the connector 100 overlap and engage within the overlapping grooves 220 on the adapter 200. The overlapping protrusions 110 on the adapter 200 overlap and engage within the overlapping grooves 220 on the connector 100, so that the adapter 200 and the connector 100 are more tightly overlapped and engaged, thereby ensuring the positioning accuracy of the adapter 200 and the connector 100 to a certain extent.

[0097] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0098] The high-voltage connection assembly 2000 of this utility model is described below with reference to the accompanying drawings.

[0099] Combination Figure 1 and Figure 2 As shown, a high-voltage connection assembly 2000 according to an embodiment of the present utility model includes: a high-voltage connector 1100 and a battery connection assembly 1000.

[0100] The battery connection assembly 1000 is the same as described above. The specific structure of the battery connection assembly 1000 will not be elaborated here. The battery connection assembly 1000 is connected to the high-voltage connector 1100 via an adapter 200. This enables the high-voltage connector 1100 and the battery connection assembly 1000 to connect, reducing the connection difficulty to some extent and ensuring the working performance of both.

[0101] According to the embodiments of the present utility model, the high voltage connection assembly 2000, by adopting the aforementioned battery connection assembly 1000, can reduce the assembly difficulty of the high voltage connection assembly 2000 to a certain extent and improve the working performance of the high voltage connection assembly 2000.

[0102] The battery pack 3000 of this utility model is described below with reference to the accompanying drawings.

[0103] like Figure 1 As shown, a battery pack 3000 according to an embodiment of the present utility model includes: a distribution box 1200 and a high-voltage connection assembly 2000.

[0104] The high-voltage connection component 2000 is the same as the aforementioned high-voltage connection component 2000. The specific structure of the high-voltage connection component 2000 will not be detailed here. The high-voltage connection component 2000 is connected to the distribution box 1200 via the connector 100. This enables the high-voltage connection component 2000 and the distribution box 1200 to be connected, reducing the connection difficulty to a certain extent and ensuring the operational performance of both the high-voltage connection component 2000 and the distribution box 1200.

[0105] According to the embodiment of the present utility model, the battery pack 3000, by adopting the aforementioned high-voltage connection component 2000, can reduce the assembly difficulty of the battery pack 3000 to a certain extent and improve the working performance of the battery pack 3000.

[0106] The following describes the electrical device according to an embodiment of the present invention.

[0107] The electrical device according to an embodiment of the present invention includes: a battery pack 3000.

[0108] Among them, battery pack 3000 is the aforementioned battery pack 3000, and the specific structure of battery pack 3000 will not be described in detail here.

[0109] According to the embodiments of the present invention, by employing the aforementioned battery pack 3000, the working performance of the electrical device can be improved to a certain extent.

[0110] It should be noted that the electrical devices mentioned here can include, but are not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, ships, spacecraft, etc.

[0111] Among them, electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys; spacecraft can include airplanes, rockets, space shuttles, and spacecraft; power tools include metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, extrusion drills, concrete vibrators, and electric planers.

[0112] 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.

[0113] Figure 4 The above illustration shows three overlapping grooves 220 for illustrative purposes. However, after reading the above technical solution, a person skilled in the art will obviously understand that applying the solution to one, two, four or more overlapping grooves 220 would also fall within the protection scope of this utility model.

[0114] The specific structures of the battery connection assembly 1000, high-voltage connection assembly 2000, battery pack 3000, and other components of the electrical device according to the embodiments of the present invention, such as high-voltage connector 1100 and distribution box 1200, are known to those skilled in the art and will not be described in detail here.

[0115] In this specification, the terms "embodiment," "example," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are 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.

[0116] 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. A battery connection assembly, characterized in that, include: A connector (100) adapted to be electrically connected to a distribution box (1200); An adapter (200) is provided, one end of which is electrically connected to the connector (100), and the other end of which is adapted to be connected to a high-voltage connector (1100).

2. The battery connection assembly according to claim 1, characterized in that, The two opposite ends of the adapter (200) are respectively welded to the connector (100) and the high-voltage connector (1100).

3. The battery connection assembly according to claim 1, characterized in that, The other end of the adapter (200) is provided with a mating part (210), which is adapted to be connected to the high-voltage connector (1100).

4. The battery connection assembly according to claim 3, characterized in that, The mating part (210) is a connecting hole adapted to connect the connecting terminal (1110) of the high-voltage connector (1100). The connecting terminal (1110) is provided with a connecting post (300). The connecting hole is adapted to accommodate at least a portion of the connecting post (300) so that the other end of the adapter (200) is connected to the high-voltage connector (1100).

5. The battery connection assembly according to claim 4, characterized in that, The connecting hole is provided inside the positioning element, and the connecting post (300) is positioned and engaged with the positioning element.

6. The battery connection assembly according to claim 5, characterized in that, The positioning element is one of a positioning protrusion (410) and a positioning groove (420), and the other of the positioning protrusion (410) and the positioning groove (420) is provided on the connecting column (300). The positioning protrusion (410) can be positioned and fitted in the positioning groove (420).

7. The battery connection assembly according to claim 4, characterized in that, The connecting hole is provided inside the limiting member, and the connecting post (300) is limited and engaged with the limiting member.

8. The battery connection assembly according to claim 7, characterized in that, The limiting member is disposed on the inner peripheral wall of the connecting hole. The limiting member is one of the limiting protrusion (510) and the limiting groove (520). The other of the limiting protrusion (510) and the limiting groove (520) is disposed on the outer peripheral wall of the connecting post (300). The limiting protrusion (510) can be limited and fitted in the limiting groove (520).

9. The battery connection assembly according to claim 4, characterized in that, The connecting post (300) is made of copper, while the adapter (200) and the connecting member (100) are made of aluminum.

10. The battery connection assembly according to claim 1, characterized in that, The adapter (200) and the connector (100) overlap and cooperate.

11. The battery connection assembly according to claim 10, characterized in that, The adapter (200) and the connector (100) have an overlapping protrusion (110) and an overlapping groove (220) at the overlapping point. The overlapping protrusion (110) can overlap and fit in the overlapping groove (220). One of the adapter (200) and the connector (100) has the overlapping protrusion (110), and the other has the overlapping groove (220).

12. The battery connection assembly according to claim 11, characterized in that, Both the overlapping protrusions (110) and the overlapping grooves (220) include multiple ones. The multiple overlapping protrusions (110) are arranged sequentially at intervals on one of the adapter (200) and the connector (100), and the multiple overlapping grooves (220) are arranged sequentially at intervals on the other of the adapter (200) and the connector (100).

13. A high-voltage connection assembly, characterized in that, include: High-voltage connector (1100); A battery connection assembly, wherein the battery connection assembly is the battery connection assembly according to any one of claims 1-12, the battery connection assembly being connected to the high-voltage connector (1100) via the adapter (200).

14. A battery pack, characterized in that, include: A distribution box (1200) is connected in conjunction with a battery cell; A high-voltage connection assembly, wherein the high-voltage connection assembly is the high-voltage connection assembly according to claim 13, and the high-voltage connection assembly is connected to the distribution box (1200) via the connector (100).

15. An electrical appliance, characterized in that, Includes the battery pack according to claim 14.

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