Shunt assembly and battery pack

Abstract

This application relates to the field of battery technology and provides a shunt assembly and a battery pack. The shunt assembly of this application includes a mounting base, a shunt and a cover disposed on the mounting base, a connector and a copper busbar connected to the shunt, and a protective cover connected to the copper busbar. The cover is disposed on the connector, and the protective cover is disposed on at least a portion of the copper busbar. By providing a mounting base, and mounting the shunt and cover on the mounting base, as well as the connector and copper busbar connected to the shunt, and with the protective cover covering at least a portion of the copper busbar, and the cover disposing of the connector, the shunt assembly of this application can achieve protection for the shunt and copper busbar, thereby reducing the probability of electric shock and improving the safety performance of the shunt assembly.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a shunt assembly and battery pack. Background Technology

[0002] Shunts are widely used in the current measurement range of instruments, and can be used for backflow, current limiting, current sharing, and sampling detection of power supplies in communication systems, electronic devices, and automated control systems. A key characteristic of the shunt itself is a low-resistance element with a sampling terminal. However, traditional shunt designs pose a risk of electric shock to personnel, hindering the improvement of shunt safety performance. Utility Model Content

[0003] In view of this, this application aims to provide a splitter assembly to improve the safety of the splitter assembly.

[0004] To achieve the above objectives, the technical solution of this application is implemented as follows: A splitter assembly includes a mounting base, a splitter and a cover disposed on the mounting base, a connector and a copper busbar connected to the splitter, and a protective cover connected to the copper busbar. The cover is disposed over the connector, and the shield is disposed over at least a portion of the copper busbar.

[0005] Furthermore, the splitter and the copper busbar are fixed to the mounting base by the same fastener; a connecting cylinder is provided inside the protective cover, and the connecting cylinder is interference-fitted onto the fastener.

[0006] Furthermore, the protective cover is provided with a snap-fit ​​structure, and the protective cover is snapped onto the copper busbar through the snap-fit ​​structure; and / or, the connector is located in the middle of the shunt, and the copper busbar consists of two copper busbars located on opposite sides of the connector.

[0007] Furthermore, one side of the protective cover is provided with a through hole for the copper busbar to pass through, and the snap-fit ​​structure includes a buckle located at one end of the through hole, and a snap-fit ​​claw with one end connected to the protective cover and the other end extending into the through hole; the snap-fit ​​claw and the buckle are respectively snapped onto two opposite sides of the copper busbar in the thickness direction.

[0008] Furthermore, the mounting base is provided with a mounting groove and a limiting structure located within the mounting groove; the diverter is disposed within the mounting groove, and the limiting structure is used to limit the displacement of the diverter within the mounting groove.

[0009] Furthermore, the limiting structure includes limiting ribs disposed on two opposite sides of the splitter in the first direction, the limiting ribs abutting against the splitter to limit the displacement of the splitter in the first direction; and / or, the limiting structure includes limiting protrusions disposed on two opposite sides of the splitter in the second direction, the limiting protrusions abutting against the splitter to limit the displacement of the splitter in the second direction.

[0010] Furthermore, the mounting base is provided with a baffle and a connecting post on one side of the mounting groove. The cover includes a top plate, side plates on two opposite sides of the top plate, and a rear plate between the two side plates. The rear plate is located above the baffle. The top plate is detachably connected to the connecting post. The two side plates abut against the distributor.

[0011] Furthermore, a recessed platform is formed on the side of the top plate near the rear plate, and the top plate is screwed to the connecting column by bolts passing through the recessed platform.

[0012] Furthermore, the mounting base is provided with a support protrusion located on the other side of the mounting groove, and the support protrusion is correspondingly provided with the side plates on both sides; each side plate is provided with a notch adapted to the support protrusion, and the support protrusion is located in the notch.

[0013] Compared with related technologies, this application has the following advantages: (1) The shunt assembly described in this application, by setting a mounting base, and setting a shunt and a cover on the mounting base, as well as a connector and a copper busbar connected to the shunt, the copper busbar is connected to a protective cover, the protective cover is placed on at least part of the copper busbar, and the cover is placed on the connector, can achieve protection for the shunt and the copper busbar, which is conducive to reducing the probability of electric shock to personnel and improving the safety performance of the shunt assembly.

[0014] (2) The shunt and the copper busbar are fixed to the mounting base with the same fastener. This ensures a reliable connection between the shunt, the copper busbar and the mounting base. The structure is simple and easy to implement, and it can reduce the number of fasteners, reduce costs and improve assembly efficiency. By providing a connecting cylinder inside the cover, which is interference-fitted onto the fastener, the structural strength of the fastener can be used to improve the stability of the cover.

[0015] (3) By providing a snap-fit ​​structure on the cover, the cover is snapped onto the copper busbar, which makes the cover easy to install and ensures a reliable connection between the cover and the copper busbar. The connector is located in the middle of the splitter, and the copper busbars are located on two opposite sides of the connector, which helps to improve the sampling accuracy of the splitter and also helps to ensure the reliability of the splitter assembly.

[0016] (4) By providing a through hole for the copper busbar to pass through on one side of the shield, and making the snap-fit ​​structure include a buckle at one end of the through hole and a snap-fit ​​claw with one end connected to the shield and the other end extending into the through hole, and the snap-fit ​​claw and buckle are respectively snapped on two opposite sides in the thickness direction of the copper busbar, the displacement of the shield in the third direction can be restricted, the shield can be prevented from falling off due to vibration or impact, personnel can be prevented from contacting the shunt or copper busbar, the probability of electric shock can be reduced, and the safety performance of the shunt assembly can be improved. At the same time, the snap-fit ​​structure is simple and easy to install, which helps to reduce installation time.

[0017] (5) By setting a mounting groove on the mounting base and a limiting structure located in the mounting groove to limit the displacement of the shunt in the mounting groove, and placing the shunt in the mounting groove, the installation reliability of the shunt can be improved, and the shunt can also be protected to prevent electric shock to personnel, which is conducive to improving the safety performance of the shunt assembly.

[0018] (6) The limiting structure includes limiting ribs on two opposite sides of the first direction of the splitter. The limiting ribs abut against the splitter to limit the displacement of the splitter in the first direction. The limiting structure also includes limiting protrusions on two opposite sides of the second direction of the splitter. The limiting protrusions abut against the splitter to limit the displacement of the splitter in the second direction. This can effectively prevent the splitter from displacing or loosening due to vibration or impact, which is beneficial to improving the reliability of the splitter assembly. At the same time, its simple structure makes it easy to design and manufacture, and it is also beneficial to control production costs.

[0019] (7) By setting a baffle and a connecting post on one side of the mounting slot on the mounting base, the cover includes a top plate, two side plates on opposite sides of the top plate, and a rear plate between the two side plates. The rear plate is located above the baffle, and the top plate is detachably connected to the connecting post. The two side plates abut against the splitter respectively. This can limit and shield the splitter while protecting the connector, which is beneficial to improving the safety performance of the splitter assembly and the reliability of the splitter assembly.

[0020] (8) The top plate has a recessed platform on the side near the rear plate. The top plate is connected to the connecting column by bolts passing through the recessed platform. This ensures the reliability of the connection between the cover and the mounting base, and also facilitates installation and disassembly. At the same time, the recessed platform design can hide the bolt head and prevent the bolt from being damaged by external force, which is conducive to improving the reliability of the distributor assembly.

[0021] (9) By setting a support protrusion on the mounting base on the other side of the mounting groove and corresponding to the two side plates, and providing a notch on each side plate that is adapted to the support protrusion, the support protrusion is located in the notch, which can improve the support strength of the top plate, which is conducive to further improving the protection capability of the connector and improving the reliability of the shunt assembly.

[0022] Another object of this application is to provide a battery pack having a shunt assembly as described above.

[0023] The battery pack described in this application, by incorporating the shunt assembly as described above, improves the safety and reliability of the battery pack, thereby enhancing its market competitiveness. Attached Figure Description

[0024] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the shunt assembly described in the embodiments of this application; Figure 2 This is a cross-sectional view of the shunt assembly described in the embodiments of this application; Figure 3 This is the mating structure of the mounting base and the cover as described in the embodiments of this application; Figure 4 This is the mating structure of the shunt and connector described in the embodiments of this application; Figure 5 This is a schematic diagram of the mounting base described in the embodiments of this application; Figure 6 for Figure 5 A schematic diagram of the installation structure shown from another perspective; Figure 7 This is a schematic diagram of the structure of the cover described in the embodiment of this application; Figure 8 This is a schematic diagram of the structure of the protective cover described in the embodiment of this application; Figure 9 This is a schematic diagram of the protective cover described in an embodiment of this application from another perspective; Explanation of reference numerals in the attached figures: 100. Mounting base; 101. Main body; 1011. Mounting groove; 1012. Limiting structure; 10121. Limiting rib; 10122. Limiting protrusion; 1013. Connecting column; 10131. First reinforcing rib; 10132. Second reinforcing rib; 1014. Baffle; 10141. Baffle body; 10142. Baffle secondary plate; 1015. Support protrusion; 102. Protruding part; 1021. First part; 10211. First cavity; 1022. Connecting part; 10221. Second cavity; 1023. First reinforcing rib; 103. Weight reduction groove; 1031. Second reinforcing rib; 1032. Third reinforcing rib; 200, Diverter; 201, Connecting protrusion; 202, First connecting hole; 300. Cover body; 301. Top plate; 302. Side plate; 3021. Notch; 303. Rear plate; 304. Sloping platform; 3041. Second clearance hole; 3042. Fourth reinforcing rib; 400, Copper busbar; 500, Protective cover; 501, Connecting cylinder; 5011, Cylinder body; 5012, Connecting plate; 502, Snap-fit ​​structure; 5021, Buckle; 5022, Snap-fit ​​claw; 503, Through hole; 504, Opening; 600, Fastener; 700, Bolt; 800, Connector; 801, Mounting plate; 8011, First clearance hole; 802, Connector body. Detailed Implementation

[0025] To make the technical solution and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0027] Furthermore, it should be noted that in the description of this application, if terms such as "upper," "lower," "inner," or "outer" appear, indicating orientation or positional relationship, these are based on the orientation or positional 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, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, if terms such as "first" or "second" appear, they are also used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] Furthermore, in the description of this application, unless otherwise expressly defined, the terms "installation," "connection," "joining," and "connector" 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application in light of the specific circumstances.

[0029] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0030] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0031] An embodiment of the first aspect of this application provides a shunt assembly, which is typically used for current detection, and the shunt assembly of this embodiment, through its innovative structural design, can improve the safety performance of the shunt.

[0032] In related technologies, shunts are widely used in the current measurement range of instruments. They can be used for backflow, current limiting, current sharing, and sampling detection of power supplies in communication systems, electronic devices, and automated control systems. The main characteristic of the shunt body is that it is a low-resistance device with a sampling terminal. However, in traditional shunt designs, components such as the shunt busbar are exposed, posing a risk of electric shock to personnel and hindering the improvement of shunt safety performance.

[0033] In view of this, in order to overcome the shortcomings of the related technology, the shunt assembly of this embodiment combines... Figures 1 to 9 The overall design includes a mounting base 100, a splitter 200 and a cover 300 mounted on the mounting base 100, a connector 800 and a copper busbar 400 connected to the splitter 200, and a protective cover 500 connected to the copper busbar 400. The cover 300 covers the connector 800, and the protective cover 500 covers at least a portion of the copper busbar 400.

[0034] Therefore, by setting up a mounting base 100, and on the mounting base 100, a shunt 200 and a cover 300, as well as a connector 800 and a copper busbar 400 connected to the shunt 200, with a protective cover 500 connected to the copper busbar 400, the protective cover 500 covering at least a portion of the copper busbar 400, and the cover 300 covering the connector 800, protection for the shunt 200 and the copper busbar 400 can be achieved, which helps to reduce the probability of electric shock to personnel and improve the safety performance of the shunt assembly.

[0035] Based on the above overview, specifically, the connector 800 of this embodiment can adopt the relevant structure found in existing connectors 800. In one exemplary embodiment, reference can be made to... Figures 1 to 9 As shown, the connector 800 described above includes a mounting plate 801 and a connector body 802.

[0036] The mounting plate 801 is provided with a first clearance hole 8011, and the splitter 200 is provided with a connecting protrusion 201. The connecting protrusion 201 can pass through the first clearance hole 8011 on the mounting plate 801 and connect with the connector 800, thereby realizing the electrical connection between the splitter 200 and the connector 800. The connecting protrusion 201 is cylindrical and located in the middle of the splitter 200, extending in the thickness direction of the splitter 200, and there are two protrusions spaced apart along the length direction of the splitter 200. Of course, there can be three or more connecting protrusions 201, and their position and number can be adjusted adaptively, which is not limited here.

[0037] The diverter 200 in this embodiment is elongated in shape and has first connection holes 202 on both sides for connecting to the mounting base 100. It is made entirely of copper, and its thickness is preferably 2-4 mm to ensure the structural strength of the diverter 200. Of course, its thickness and material can also be adjusted accordingly.

[0038] Furthermore, it is worth mentioning that the mounting base 100 in this embodiment can be made of PA6, i.e. polyamide 6, which is well known to those skilled in the art, and can be integrally injection molded by injection molding. This not only improves the overall structural strength and reliability of the mounting base 100, but also makes the mounting base 100 easier to design and manufacture.

[0039] Additionally, it should be noted that the first direction in this embodiment is the width direction of the mounting base 100 in this embodiment, the second direction in this embodiment is the length direction of the mounting base 100 in this embodiment, and the third direction in this embodiment is the thickness direction of the mounting base 100 in this embodiment.

[0040] Combination Figures 1 to 4As shown, in some exemplary embodiments, the splitter 200 and the copper busbar 400 are fixed to the mounting base 100 by the same fastener 600. A connecting cylinder 501 is provided inside the cover 500, and the connecting cylinder 501 is interference-fitted onto the fastener 600. The advantage of this arrangement is that it ensures a reliable connection between the splitter 200, the copper busbar 400, and the mounting base 100, while maintaining a simple structure for easy implementation, reducing the number of fasteners 600, lowering costs, and improving assembly efficiency. Furthermore, by providing the connecting cylinder 501 inside the cover 500, and by interference-fitting the connecting cylinder 501 onto the fastener 600, the structural strength of the fastener 600 enhances the stability of the cover 500.

[0041] In specific implementation, the mounting base 100 of this embodiment includes an elongated main body 101 and a protruding portion 102 located on the side of the main body 101 away from the connector 800, for wrapping and connecting to the fastener 600. The protruding portion 102 includes a cylindrical first portion 1021 extending along the thickness direction of the mounting base 100, and a connecting portion 1022 for connecting the first portion 1021 and the mounting base 100. The connecting portion 1022 is generally hexagonal prism-shaped, and its diameter is larger than that of the first portion 1021. Between the connecting portion 1022 and the first portion 1021, a plurality of first reinforcing ribs 1023 are spaced apart in the circumferential direction of the first portion 1021. This ensures the structural strength of the connecting portion 1022 and the first portion 1021 while also facilitating demolding of the mounting base 100.

[0042] Furthermore, the hollow design of the protruding portion 102 is used to accommodate the fastener 600. It includes a first cavity 10211 and a second cavity 10221, the shape of which conforms to the first portion 1021 and the connecting portion 1022. The inner wall of the first cavity 10211 is also provided with threads for engaging with the fastener 600 to connect the distributor 200, the copper busbar 400, and the mounting base 100. A chamfer is also provided between the first cavity 10211 and the second cavity 10221, which guides the fastener 600, facilitating its entry into the first cavity 10211, and also facilitates the demolding of the mounting base 100, thus simplifying the manufacturing of the mounting base 100. The fastener 600 in this embodiment can be a bolt 700, well-known to those skilled in the art; however, other fasteners 600 well-known to those skilled in the art, such as screws, can also be used.

[0043] In addition, the mounting base 100 of this embodiment has a weight-reducing groove 103 on the same side of the main body 101 as the protruding portion 102, and a second reinforcing rib 1031 is provided between the two side walls of the weight-reducing groove 103, and the second reinforcing rib 1031 extends along the first direction. The main body 101 also has a third reinforcing rib 1032, which is located between the connecting portion 1022 and the side wall of the weight-reducing groove 103, and is used to enhance the structural strength of the connecting portion 1022 and the main body 101.

[0044] Combination Figure 1 , Figure 3 , Figure 8 as well as Figure 9 As shown, in some exemplary embodiments, the shield 500 is provided with a snap-fit ​​structure 502, through which the shield 500 is snapped onto the copper busbar 400. This facilitates installation of the shield 500 while ensuring a reliable connection between the shield 500 and the copper busbar 400. Positioning the connector 800 in the middle of the shunt 200, with two copper busbars 400 located on opposite sides of the connector 800, improves the sampling accuracy of the shunt 200 and enhances the reliability of the shunt assembly.

[0045] In specific implementation, the copper busbar 400 of this embodiment has a mounting hole at the end connected to the shunt 200. Furthermore, other related structures of the copper busbar 400 can be found in the structures of copper busbars 400 well-known to those skilled in the art, and will not be described in detail here.

[0046] Combination Figure 8 as well as Figure 9 As shown, in some exemplary embodiments, the shield 500 has a through hole 503 on one side for the copper busbar 400 to pass through. The snap-fit ​​structure 502 includes a snap fastener 5021 located at one end of the through hole 503, and a snap-fit ​​claw 5022 connected at one end to the shield 500 and extending into the through hole 503 at the other end. The snap-fit ​​claw 5022 and the snap fastener 5021 are respectively snapped onto two opposite sides of the copper busbar 400 in the thickness direction.

[0047] This design limits the displacement of the shield 500 in the third direction, preventing it from falling off due to vibration or impact, thus preventing personnel from contacting the shunt 200 or copper busbar 400, reducing the probability of electric shock, and improving the safety performance of the shunt assembly. At the same time, the snap-fit ​​structure 502 is simple and easy to install, reducing installation time and consequently lowering production costs.

[0048] In specific implementation, the protective cover 500 of this embodiment includes a cover body, a connecting cylinder 501 disposed inside the cover body and cooperating with the fastener 600, and a snap-fit ​​structure 502 disposed on one side of the protective cover 500. The connecting cylinder 501 includes a cylindrical body 5011 connected to the cover body and extending in a third direction, and a connecting plate 5012 disposed inside the cylindrical body 5011 and extending radially towards the center of the cylindrical body 5011. Multiple connecting plates 5012 are arranged circumferentially around the cylindrical body 5011. When the cylindrical body 5011 is fitted onto the fastener 600, the connecting plate 5012 deforms, connecting the fastener 600 and the connecting cylinder 501, thereby achieving an interference fit of the connecting cylinder 501 onto the fastener 600.

[0049] The aforementioned protective cover 500 also has an opening 504 above the through hole 503 for accommodating the deformable latching claw 5022. When the latching structure 502 is latched onto the copper busbar 400, the latching claw 5022 extends into the through hole 503 and is thus squeezed by the copper busbar 400 passing through the through hole 503, resulting in deformation in the third direction. At this time, the opening 504 can accommodate the deformed latching claw 5022. Simultaneously, the design of the opening 504 also facilitates the forming of the latching claw 5022, thereby simplifying the production of the protective cover 500.

[0050] Combination Figure 5 as well as Figure 6 As shown, in some exemplary embodiments, the mounting base 100 is provided with a mounting groove 1011 and a limiting structure 1012 located within the mounting groove 1011. The shunt 200 is disposed within the mounting groove 1011, and the limiting structure 1012 is used to limit the displacement of the shunt 200 within the mounting groove 1011. In this way, the installation reliability of the shunt 200 can be improved, while also protecting the shunt 200 from electric shock, which is beneficial to improving the safety performance of the shunt assembly.

[0051] In a specific implementation, the mounting groove 1011 of this embodiment is located on the side of the main body 101 of the mounting base 100 that contacts the shunt 200, and is used to accommodate the shunt 200. The sidewall of the mounting groove 1011 can shield the shunt 200, preventing personnel from contacting the shunt 200, thereby helping to prevent electric shock and improving the safety performance of the shunt assembly.

[0052] Combining 1 to Figure 6As shown, in some exemplary embodiments, the limiting structure 1012 includes limiting ribs 10121 disposed on two opposite sides of the diverter 200 in the first direction, the limiting ribs 10121 abutting against the diverter 200 to limit the displacement of the diverter 200 in the first direction. The limiting structure 1012 also includes limiting protrusions 10122 disposed on two opposite sides of the diverter 200 in the second direction, the limiting protrusions 10122 abutting against the diverter 200 to limit the displacement of the diverter 200 in the second direction.

[0053] The advantage of this design is that it effectively prevents the splitter 200 from shifting or loosening due to vibration or impact, thus improving the reliability of the splitter assembly. At the same time, its simple structure facilitates design and manufacturing, helps control production costs, and enhances market competitiveness.

[0054] In specific implementation, the limiting ribs 10121 of this embodiment are disposed on the mounting base 100, extending along the first direction, and are arranged in multiple sets at intervals in the second direction. Each set includes limiting ribs 10121 disposed on two opposite sides of the diverter 200 in the first direction. Preferably, two sets are arranged at intervals in the second direction, which can prevent the diverter 200 from displacing in the first direction due to impact or vibration, while also making the mounting base 100 easy to manufacture without adding too much weight. Of course, there can also be three sets, four sets or more, but this may increase manufacturing costs and structural weight.

[0055] In this embodiment, the limiting protrusion 10122 is disposed on the mounting base 100, extends along the second direction, and is provided in multiple sets at intervals in the first direction. Each set includes limiting protrusions 10122 disposed on two opposite sides of the diverter 200 in the second direction. Preferably, two sets are provided at intervals in the first direction. This design can prevent the diverter 200 from shifting in the second direction due to impact or vibration, facilitates the manufacture of the mounting base 100, and does not significantly increase the weight. Of course, if three, four, or more sets are used, although stability can be improved, manufacturing costs and structural weight will increase.

[0056] Combination Figure 3 as well as Figure 5 As shown, in some exemplary embodiments, the mounting base 100 is provided with a baffle 1014 and a connecting post 1013 located on one side of the mounting groove 1011. The cover 300 includes a top plate 301, side plates 302 located on two opposite sides of the top plate 301, and a rear plate 303 located between the two side plates 302. The rear plate 303 is located above the baffle 1014. The top plate 301 is detachably connected to the connecting post 1013, and the two side plates 302 respectively abut against the distributor 200.

[0057] In this way, while limiting and shielding the shunt 200, the connector 800 can also be protected, which is conducive to improving the safety performance and reliability of the shunt assembly.

[0058] In specific implementation, the aforementioned baffle 1014 is generally U-shaped, including a baffle body 10141, which is located on one side of the mounting groove 1011 and extends along the length of the mounting groove 1011, extending in a third direction. Baffle plates 10142 are located at both ends of the baffle body 10141 and extend in a second direction. The aforementioned connecting posts 1013 are multiple posts spaced apart in the second direction. Preferably, two connecting posts 1013 are spaced apart in the second direction to avoid occupying too much space while ensuring a reliable connection between the cover 300 and the connecting posts 1013.

[0059] In addition, the connecting column 1013 and the baffle plate 10142, as well as the two connecting columns 1013, are provided with a first reinforcing rib 10131, and the connecting column 1013 and the mounting base 100 are also provided with a second reinforcing rib 10132, thereby further improving the structural strength of the connecting column 1013, which is conducive to further improving the connection reliability between the cover 300 and the connecting column 1013.

[0060] Combination Figure 3 , Figure 5 , Figure 7 As shown, in some exemplary embodiments, the top plate 301 has a recessed countersunk platform 304 on the side near the rear plate 303. The top plate 301 is screwed to the connecting post 1013 by bolts 700 passing through the countersunk platform 304. This ensures reliable connection between the cover 300 and the mounting base 100 while facilitating installation and disassembly. Furthermore, the design of the countersunk platform 304 conceals the bolt heads, preventing damage to the bolts 700 due to external forces and improving the reliability of the distributor assembly.

[0061] In specific implementation, the recessed platform 304 is provided with a plurality of second clearance holes 3041 at intervals along the second direction in the middle portion for bolts 700 to pass through. Preferably, there are two second clearance holes 3041 at intervals along the second direction in the middle portion of the recessed platform 304, so as to achieve a reliable connection between the cover 300 and the mounting base 100 without weakening the structural strength of the top plate 301. At the same time, a fourth reinforcing rib 3042 is also provided between the two side walls in the middle portion of the recessed platform 304. The fourth reinforcing rib 3042 is located between the two second clearance holes 3041 to further strengthen the structural strength of the recessed platform 304 and enhance the reliability of the connection.

[0062] The bolt 700 mentioned above can be any bolt 700 known to those skilled in the art. Of course, it can also be any other fastener commonly used by those skilled in the art, such as screws, as long as it can reliably connect the cover 300 and the mounting base 100. It will not be elaborated here.

[0063] Combination Figure 3 , Figure 5 as well as Figure 7 As shown, in some exemplary embodiments, the mounting base 100 has a support protrusion 1015 located on the other side of the mounting groove 1011, and the support protrusion 1015 is correspondingly disposed with the two side plates 302. Each side plate 302 has a notch 3021 adapted to the arrangement of the support protrusion 1015, and the support protrusion 1015 is located within the notch 3021. In this way, the support strength of the top plate 301 can be improved, which is beneficial to further improve the protection capability of the connector 800 and improve the reliability of the shunt assembly.

[0064] In specific installation, firstly, the distributor 200 is installed into the mounting groove 1011 of the mounting base 100, ensuring that the limiting rib 10121 and the limiting protrusion 10122 abut against the distributor 200. Then, the cover 300 is connected to the mounting base 100, with the side plates 302 on both sides of the cover 300 abutting against the distributor 200, thus completing the installation of the distributor 200 and the mounting base 100. Next, the fastener 600 is passed through the mounting holes on the distributor 200 and the copper busbar 400, and then screwed onto the mounting base 100, thus completing the reliable connection of the distributor 200, the copper busbar 400, and the mounting base 100. Finally, the copper busbar 400 is passed through the through hole 503 provided on the protective cover 500 for the copper busbar 400 to pass through. At this time, the snap-fit ​​structure 502 snaps the protective cover 500 and the copper busbar 400 together, and the connecting cylinder 501 is sleeved on the fastener 600 to complete the installation of the splitter assembly.

[0065] It is worth noting that, regarding the shunt assembly of this embodiment, based on the above exemplary implementations, in specific implementation, as a preferred embodiment, it is still composed of... Figures 1 to 9 As shown, it may include, for example, a mounting base 100, a splitter 200 and a cover 300 disposed on the mounting base 100, a connector 800 and a copper busbar 400 connected to the splitter 200, and a protective cover 500 connected to the copper busbar 400. The cover 300 covers the connector 800, and the protective cover 500 covers at least a portion of the copper busbar 400. The shunt 200 and the copper busbar 400 are fixed to the mounting base 100 by the same fastener 600. A connecting cylinder 501 is provided inside the protective cover 500, and the connecting cylinder 501 is interference-fitted onto the fastener 600. The protective cover 500 is provided with a snap-fit ​​structure 502, and the protective cover 500 is snapped onto the copper busbar 400 by the snap-fit ​​structure 502. The connector 800 is located in the middle of the shunt 200, and there are two copper busbars 400 located on opposite sides of the connector 800.

[0066] The protective cover 500 has a through hole 503 on one side for the copper busbar 400 to pass through. The snap-fit ​​structure 502 includes a buckle 5021 located at one end of the through hole 503 and a snap-fit ​​claw 5022 connected at one end to the protective cover 500 and extending into the through hole 503 at the other end. The snap-fit ​​claw 5022 and the buckle 5021 are respectively snapped onto two opposite sides of the copper busbar 400 in the thickness direction. The mounting base 100 has a mounting groove 1011 and a limiting structure 1012 located in the mounting groove 1011. The splitter 200 is located in the mounting groove 1011, and the limiting structure 1012 is used to limit the displacement of the splitter 200 in the mounting groove 1011. The limiting structure 1012 includes limiting ribs 10121 disposed on two opposite sides of the diverter 200 in the first direction. The limiting ribs 10121 abut against the diverter 200 to limit the displacement of the diverter 200 in the first direction. The limiting structure 1012 also includes limiting protrusions 10122 disposed on two opposite sides of the diverter 200 in the second direction. The limiting protrusions 10122 abut against the diverter 200 to limit the displacement of the diverter 200 in the second direction.

[0067] The mounting base 100 is provided with a baffle 1014 and a connecting post 1013 located on one side of the mounting groove 1011. The cover 300 includes a top plate 301, side plates 302 located on two opposite sides of the top plate 301, and a rear plate 303 located between the two side plates 302. The rear plate 303 is located above the baffle 1014. The top plate 301 is detachably connected to the connecting post 1013, and the two side plates 302 abut against the distributor 200. A recessed platform 304 is formed on the side of the top plate 301 near the rear plate 303. The top plate 301 is screwed to the connecting post 1013 by bolts 700 passing through the recessed platform 304. The mounting base 100 is provided with a support protrusion 1015 located on the other side of the mounting groove 1011, and the support protrusion 1015 is correspondingly provided with the two side plates 302. Each side plate 302 is provided with a notch 3021 adapted to the support protrusion 1015, and the support protrusion 1015 is located in the notch 3021.

[0068] In the preferred embodiment of the above-mentioned splitter assembly, the specific configuration and arrangement of the mounting base 100, the splitter 200, the cover 300, etc. can still be referred to the descriptions in the above-mentioned exemplary embodiments. Furthermore, in this preferred embodiment, the beneficial effects brought about by the design of the mounting base 100, the splitter 200, and the cover 300, etc., can also be referred to the descriptions in the above-mentioned exemplary embodiments.

[0069] The shunt assembly of this embodiment adopts the above design. By setting a mounting base 100, and mounting a shunt 200 and a cover 300 on the mounting base 100, as well as a connector 800 and a copper busbar 400 connected to the shunt 200, the copper busbar 400 is connected to a protective cover 500, the protective cover 500 covers at least part of the copper busbar 400, and the cover 300 covers the connector 800, which can realize the protection of the shunt 200 and the copper busbar 400, which helps to reduce the probability of electric shock to personnel and improve the safety performance of the shunt assembly.

[0070] An embodiment of the second aspect of this application provides a battery pack in which a shunt assembly as described in the embodiment of the first aspect above is provided.

[0071] The battery pack of this embodiment, by setting the shunt assembly as described in the first aspect above, helps to improve the safety and reliability of the battery pack, thereby enhancing the market competitiveness of the battery pack.

[0072] The above descriptions are merely some embodiments of this application and are not intended to limit this application. The technical features or structures in the foregoing different embodiments can be arbitrarily combined to form other specific technical solutions as needed. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of the claims of this application.

Claims

1. A shunt assembly, characterized in that: Includes a mounting base, a splitter and a cover disposed on the mounting base, a connector and a copper busbar connected to the splitter, and a protective cover connected to the copper busbar; The cover is disposed over the connector, and the shield is disposed over at least a portion of the copper busbar.

2. The shunt assembly according to claim 1, characterized in that: The current splitter and the copper busbar are fixed to the mounting base by the same fastener; The protective cover is provided with a connecting cylinder, which is interference-fitted onto the fastener.

3. The shunt assembly according to claim 1, characterized in that: The protective cover is provided with a snap-fit ​​structure, and the protective cover is snapped onto the copper busbar through the snap-fit ​​structure; and / or, The connector is located in the middle of the shunt, and the copper busbars are two located on opposite sides of the connector.

4. The shunt assembly according to claim 3, characterized in that: The protective cover has a through hole on one side for the copper busbar to pass through. The snap-fit ​​structure includes a buckle located at one end of the through hole and a snap-fit ​​claw with one end connected to the protective cover and the other end extending into the through hole. The locking claw and the latch are respectively engaged on two opposite sides in the thickness direction of the copper busbar.

5. The shunt assembly according to any one of claims 1 to 4, characterized in that: The mounting base is provided with a mounting groove and a limiting structure located within the mounting groove; The distributor is disposed in the mounting groove, and the limiting structure is used to limit the displacement of the distributor in the mounting groove.

6. The shunt assembly according to claim 5, characterized in that: The limiting structure includes limiting ribs disposed on two opposite sides of the distributor in the first direction, the limiting ribs abutting against the distributor to limit the displacement of the distributor in the first direction; and / or, The limiting structure includes limiting protrusions on two opposite sides of the splitter in the second direction. The limiting protrusions abut against the splitter to limit the displacement of the splitter in the second direction.

7. The shunt assembly according to claim 5, characterized in that: The mounting base is provided with a baffle and a connecting post on one side of the mounting groove. The cover includes a top plate, side plates on two opposite sides of the top plate, and a rear plate between the two side plates. The rear plate is located above the baffle, the top plate is detachably connected to the connecting column, and the side plates on both sides abut against the splitter.

8. The shunt assembly according to claim 7, characterized in that: The top plate has a recessed platform on the side near the rear plate, and the top plate is screwed to the connecting column by bolts passing through the recessed platform.

9. The shunt assembly according to claim 7, characterized in that: The mounting base is provided with a support protrusion located on the other side of the mounting groove, and the support protrusion is correspondingly arranged with the side plates on both sides; Each of the side plates is provided with a notch adapted to the support protrusion, and the support protrusion is located within the notch.

10. A battery pack, characterized in that: The battery pack is provided with a shunt assembly as described in any one of claims 1 to 9.

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