Shunt collection box structure and battery pack
By designing the shunt collector box structure and utilizing multiple clearance openings and rotatable baffles, the problems of poor reliability and messy wiring harnesses of the shunt in the battery pack were solved, thereby improving the safety and space utilization of the battery pack.
Patent Information
- Application Number
- CN202422879988.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-25
AI Technical Summary
When the shunt is directly fixed in the battery pack, it suffers from poor reliability, temperature affects measurement results, messy wiring harnesses and easy entry of external impurities leading to short circuits, thus affecting the safety of the battery pack.
Design a shunt collector box structure, including a lower shell and an upper cover, with multiple clearance openings and a rotatable baffle. Utilize elastic elements and snap-fit components to ensure flexible copper busbar connection and prevent external impurities from entering.
It improves the safety and space utilization of the battery pack, reduces wiring clutter, prevents shunt short circuits, and enhances the flexibility and assembly efficiency of the device.
Smart Images

Figure CN223501953U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shunt technology, and in particular to a shunt collector box structure. It also relates to a battery pack equipped with the shunt collector box structure. Background Technology
[0002] With the increasing prominence of energy and environmental issues, new energy vehicles are developing rapidly. As a crucial component of new energy vehicles, the battery pack directly impacts their normal operation. Therefore, battery pack safety testing is of paramount importance. A shunt is an electrical device within the battery pack used to measure current accuracy, and users or testing personnel commonly employ shunts for battery pack safety testing.
[0003] Currently, shunts are generally integrated and installed in shunt acquisition boxes, but sometimes they are placed directly inside the battery pack. If the shunt is directly fixed inside the battery pack with insulating posts, there are safety risks due to the poor reliability of the insulating posts, and the temperature inside the pack can affect the measurement results. When placed in an existing acquisition box, the copper busbars on the shunt are connected to other components of the battery pack, resulting in messy wiring. Furthermore, external impurities and dust can easily enter the box, causing short circuits in the shunt and thus compromising the safety of the battery pack. Utility Model Content
[0004] In view of this, the present invention aims to propose a shunt collector box structure, which is beneficial to improving the safety of the battery pack.
[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:
[0006] A splitter collection box structure includes a lower housing, a splitter body disposed in the lower housing, and an upper cover disposed on the lower housing;
[0007] The side wall of the lower housing and / or the side wall of the upper cover are provided with multiple clearance openings with different opening directions, and each clearance opening is used for the copper busbar connected to the main body of the splitter to pass through.
[0008] The lower housing and / or the upper cover are provided with baffles for blocking the clearance opening, and each baffle is rotatably disposed on the lower housing or the upper cover, or each baffle is connected to the lower housing and / or the upper cover through a breakable connecting unit.
[0009] Furthermore, the sidewall includes a first sidewall located at both ends of the lower housing in the length direction, and a second sidewall located on both sides of the lower housing in the width direction, and each of the first sidewall and each of the second sidewalls is provided with the clearance opening; and / or, each of the baffles is located on the side of the clearance opening closer to the main body of the distributor.
[0010] Furthermore, each of the baffles is mounted on the upper cover via a pivot.
[0011] Furthermore, each of the baffles and the upper cover is provided with an elastic element.
[0012] Furthermore, the elastic element is a torsion spring sleeved on the rotating shaft, with one end of the torsion spring connected to the rotating shaft and the other end of the torsion spring connected to the baffle.
[0013] Furthermore, the main body of the shunt includes a conductive plate and a PCB connector;
[0014] Furthermore, the upper cover is snapped onto the lower housing via a snap-fit assembly; the snap-fit assembly includes a snap-fit groove on the upper cover and a snap-fit protrusion on the housing, the snap-fit protrusion being snapped into the snap-fit groove.
[0015] Furthermore, the upper cover is provided with a snap-fit plate extending downward along the height direction of the lower housing, the snap-fit groove is provided on the snap-fit plate, the lower housing is provided with a snap-fit mating plate corresponding to the snap-fit plate, and the snap-fit protrusion is provided on the snap-fit mating plate.
[0016] Furthermore, the lower housing is provided with a plurality of mounting bases, and each mounting base is provided with an insert; and / or, the main body of the splitter is embedded in the lower housing.
[0017] Compared with the prior art, this utility model has the following advantages:
[0018] The shunt collection box structure described in this utility model, through the setting of multiple avoidance openings, allows other components of the battery pack to be connected to the copper busbar from different directions, which helps to improve the flexibility of the device and reduce the clutter of the wiring. Furthermore, by setting baffles on the upper cover or lower housing, it can prevent impurities, dust, etc. from the outside of the lower housing from entering the lower housing and causing a short circuit in the main body of the shunt, thereby improving the safety of the battery pack.
[0019] Secondly, by providing clearance openings on each of the first and second side walls, copper busbars can pass through, allowing for connection from multiple directions. This enables more efficient use of space and improves space utilization. Furthermore, it accommodates different connection requirements, enhancing the flexibility of the device. The rotating shaft facilitates the rotation of the baffle while ensuring its smooth operation, and the structure is simple and easy to design and implement.
[0020] Furthermore, the inclusion of an elastic element facilitates the baffle's coverage of the clearance opening. The elastic element, a torsion spring, allows for energy storage and release within a relatively small space, enabling the baffle's reset function without consuming excessive space. The snap-fit connection between the lower housing and the upper cover allows for rapid assembly, improving assembly efficiency. The snap-fit grooves and protrusions ensure stable connection between the lower housing and the upper cover while enabling rapid assembly.
[0021] Furthermore, the snap-fit plate and snap-fit mating plate provide stable supports for the snap-fit groove and snap-fit protrusion, respectively, thereby enhancing the stability of the snap-fit structure. The mounting base facilitates the fixation of the lower housing, and the inserts further strengthen the connection of the mounting base. Moreover, the splitter body is embedded in the lower housing, facilitating maintenance and replacement of the splitter body.
[0022] Another objective of this invention is to provide a battery pack having a shunt collector box structure as described above.
[0023] The battery pack and shunt collector structure of this utility model have the same beneficial effects as traditional technologies, and will not be described in detail here. Attached Figure Description
[0024] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:
[0025] Figure 1 This is a schematic diagram of the overall structure of the shunt collector collection box described in an embodiment of the present utility model;
[0026] Figure 2 for Figure 1 An exploded view of the structure;
[0027] Figure 3 This is a schematic diagram of the structure of the copper busbar according to an embodiment of the present utility model;
[0028] Figure 4 This is a schematic diagram of the assembly of the baffle and the top cover according to an embodiment of the present utility model;
[0029] Figure 5 for Figure 4 Enlarged view of the structure shown at point A in the middle;
[0030] Figure 6 This is another assembly diagram of the baffle and the top cover according to an embodiment of the present utility model;
[0031] Figure 7 for Figure 6 Enlarged view of the structure described at point B.
[0032] Explanation of reference numerals in the attached figures:
[0033] 11. Top cover; 111. Clearance opening; 1111. Extension; 112. Baffle; 1121. Rotating shaft; 1122. Torsion spring; 113. Connecting unit; 114. Notch; 12. Lower housing; 121. Fixing base; 122. Insert; 13. First side wall; 14. Second side wall;
[0034] 2. Shunt main body; 21. Conductive board; 22. PCB connector;
[0035] 3. Copper busbar; 31. Connecting end;
[0036] 4. Snap-fit assembly; 41. Snap-fit plate; 411. Snap-fit groove; 42. Snap-fit mating plate; 421. Snap-fit protrusion;
[0037] 51. Nut. Detailed Implementation
[0038] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0039] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" appear, indicating orientation or positional relationship, they 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 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, 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.
[0040] Taking the shunt collector box structure described in this utility model as an example, the directional terms used in the embodiments, such as "up," "down," "left," "right," "front," and "back," are based on... Figure 1 The vertical direction (also known as the height direction or the Z-direction of the entire package), the horizontal direction (also known as the length direction or the Y-direction of the entire package), and the front-back direction (also known as the width direction or the X-direction of the entire package) in the state shown are defined based on the reference.
[0041] Furthermore, in the description of this utility model, unless otherwise explicitly 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 of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model in light of the specific circumstances.
[0042] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0043] Example 1
[0044] This embodiment relates to a shunt collector box structure, which can solve the problems of messy wiring harness arrangement connected to copper busbars and short circuit caused by external impurities entering the housing, thereby improving the safety of the battery pack.
[0045] In terms of overall structure, combined Figures 1 to 7 As shown, the shunt collector collection box structure of this embodiment includes a lower housing 12, a shunt body 2 disposed in the lower housing 12, and an upper cover 11 disposed on the lower housing 12.
[0046] The lower housing 12 and the upper cover 11 have multiple clearance openings 111 with different opening directions on their side walls. Each clearance opening 111 is used for the copper busbar 3 connected to the main body 2 of the splitter to pass through. Furthermore, the lower housing 12 is provided with baffles 112 for blocking the clearance openings 111, and each baffle 112 is rotatably mounted on the lower housing 12.
[0047] It should be understood that in this embodiment, each baffle 112 is disposed on the upper cover 11 to block the corresponding clearance opening 111. In other embodiments, a baffle 112 for blocking the clearance opening 111 is provided on the lower housing 12, and each baffle 112 is rotatably disposed on the lower housing 12. Alternatively, the baffle 112 can be divided into two and rotatably disposed on the lower housing 12 and the upper cover 11, respectively.
[0048] At this time, as described above, the multiple clearance openings 111 allow other components of the battery pack to be connected to the copper busbar 3 from different directions, which improves the flexibility of the device and reduces the clutter of the wiring. Furthermore, the baffle 112 on the upper cover 11 prevents external impurities and dust from entering the lower housing 12 and causing a short circuit in the shunt body 2, thereby improving the safety of the battery pack.
[0049] In the specific structure, both ends of the lower housing 12 and the upper cover 11 along the length direction are provided with three clearance openings 111. In specific implementation, copper busbars 3 are connected to both ends of the shunt body 2, and the connecting ends 31 of the copper busbars 3 pass through the corresponding clearance openings 111 to connect with other components in the battery pack. At this time, rotating the baffle 112 on the upper cover 11 can block the corresponding clearance openings 111, preventing external impurities from entering the interior of the lower housing 12.
[0050] It is worth mentioning that the copper busbar 3 can be a T-shaped copper busbar as in the prior art, with its three connecting ends 31 passing through the corresponding clearance openings 111 to connect with other components in the battery pack, such as cell modules, BDUs, etc. Furthermore, the copper busbar 3 can connect three components simultaneously, or it can connect one or two components according to actual needs, thereby improving the flexibility of the device.
[0051] It should be understood that, in this embodiment, besides rotating the baffle 112 onto the upper cover 11, another preferred implementation is as follows: Figure 6 and Figure 7 As shown, each baffle 112 is connected to the upper cover 11 via a breakable connecting unit 113.
[0052] This design allows for the complete removal of baffle 112 or selective removal of some baffle 112 when connecting other components of the battery pack, depending on the actual number of connections, thereby improving the flexibility of the device. Furthermore, in other embodiments, baffle 112 can also be connected to the lower housing 12 via connecting unit 113, or baffle 112 can be connected to both the lower housing 12 and the upper cover 11 simultaneously via connecting unit 113.
[0053] It should be noted that the connecting unit 113 in this embodiment can be made of rigid plastic in the prior art, and its two ends are respectively connected to the baffle 112 and the upper cover 11, so that when the baffle 112 is repeatedly bent relative to the upper cover 11, the connecting unit 113 will break due to the brittleness of the plastic, thereby realizing the removal of the baffle 112. At the same time, in the specific structure, the number of connecting units 113 can be set to five or six arranged at intervals along the length direction of the baffle 112.
[0054] Based on the above overall introduction, in this embodiment, as a preferred implementation, such as Figure 1 and Figure 2 As shown, the sidewall includes a first sidewall 13 located at both ends of the lower housing 12 in the length direction, and a second sidewall 14 located on both sides of the lower housing 12 in the width direction. Each first sidewall 13 and each second sidewall 14 is provided with a clearance opening 111.
[0055] Here, by opening clearance openings 111 on each of the first sidewalls 13 and each of the second sidewalls 14, the copper busbar 3 can pass through, and can be connected from multiple directions, thereby making more efficient use of space and improving space utilization. At the same time, it can also adapt to different connection requirements and improve the flexibility of the device.
[0056] In the specific structure, each first sidewall 13 is provided with a clearance opening 111, and each second sidewall 14 is provided with two clearance openings 111 arranged at intervals along the length of the lower housing 12. This facilitates the adaptation of the copper busbar 3, enabling all three connecting ends 31 on it to pass through the clearance openings 111.
[0057] It should be noted that the side walls at both ends of the length direction of the lower housing 12 and the side walls at both ends of the length direction of the upper cover 11 can both be referred to as the first side wall 13, and the side walls at both ends of the width direction of the lower housing 12 and the side walls at both ends of the width direction of the upper cover 11 can both be referred to as the second side wall 14.
[0058] Furthermore, as another preferred implementation, such as Figure 1 As shown, each baffle 112 is located on the side of the bypass opening 111 close to the main body 2 of the splitter. In the specific structure, the top of each bypass opening 111 is provided with an outwardly protruding extension 1111. This setting can prevent operators from contacting the exposed part of the copper busbar 3, thereby helping to protect the copper busbar 3.
[0059] Furthermore, in this embodiment, as a preferred implementation, such as Figure 4 and Figure 5 As shown, each baffle 112 is mounted on the upper cover 11 via a pivot 1121. The advantage of this arrangement is that the pivot 1121 facilitates the rotation of the baffle 112 while ensuring the stability of the rotation. Furthermore, the structure is simple and easy to design and implement.
[0060] In a specific implementation, the rotating shaft 1121 extends along the length of the lower housing 12, with both ends connected to the upper cover 11. The rotating shaft 1121 can penetrate the baffle 112 along its length, allowing the baffle 112 to be fitted onto the rotating shaft 1121 and rotate around it. Alternatively, in other embodiments, the baffle 112 has rotating shafts 1121 at both ends, with each shaft 1121 connected to the upper cover 11 and the baffle 112 respectively. In this case, the rotating shaft 1121 does not need to penetrate the baffle 112, thus ensuring the structural strength of the baffle 112.
[0061] Meanwhile, in this embodiment, as a preferred implementation, such as Figure 5As shown, each baffle 112 is provided with an elastic element between itself and the upper cover 11. Here, the elastic element allows the baffle 112 to easily block the clearance opening 111 under its elastic tendency.
[0062] In the specific structure, when the copper busbar 3 is connected to other components of the battery pack, the baffle 112 can rotate away from the corresponding clearance opening 111 to facilitate the connection between the copper busbar 3 and other components of the battery pack. Secondly, after the connection between the copper busbar 3 and other components of the battery pack is released, the baffle 112 rotates towards the corresponding clearance opening 111 under the elastic tendency of the elastic element to block the clearance opening 111.
[0063] Specifically, in this embodiment, as a preferred implementation, it is still as follows: Figure 5 As shown, the elastic element is a torsion spring 1122 sleeved on the rotating shaft 1121. One end of the torsion spring 1122 is connected to the rotating shaft 1121, and the other end of the torsion spring 1122 is connected to the baffle 112. Here, the use of a torsion spring 1122 as the elastic element enables energy storage and release within a relatively small space, thereby achieving the resetting function of the baffle 112 without occupying too much space. At the same time, the torsion spring 1122 has a simple structure and low manufacturing cost, which helps to reduce costs.
[0064] Meanwhile, as a preferred embodiment, the shunt body 2 of this embodiment includes a conductive plate 21 and a PCB plug-in 22 to facilitate the insertion of external wiring harness plugs and realize the acquisition of voltage and temperature channels. It should also be noted that the upper cover 11 of this embodiment has a notch 114 for avoiding the PCB plug-in 22.
[0065] Furthermore, in this embodiment, as a preferred implementation, reference is made to... Figure 1 and Figure 2 As shown, the upper cover 11 is snapped onto the lower housing 12 by the snap-fit assembly 4, thereby facilitating the assembly efficiency of the lower housing 12 and the upper cover 11.
[0066] The snap-fit assembly 4 includes a snap-fit groove 411 on the upper cover 11 and a snap-fit protrusion 421 on the lower housing 12, the snap-fit protrusion 421 snapping into the snap-fit groove 411. Here, the snap-fit groove 411 and the snap-fit protrusion 421 are provided to ensure the connection stability between the lower housing 12 and the upper cover 11 while achieving rapid assembly.
[0067] Furthermore, in this embodiment, as a preferred implementation, such as Figure 2As shown, the upper cover 11 is provided with a snap-fit plate 41 extending downward along the height direction of the lower housing 12. A snap-fit groove 411 is provided on the snap-fit plate 41. The lower housing 12 is provided with a snap-fit mating plate 42 corresponding to the snap-fit plate 41, and a snap-fit protrusion 421 is provided on the snap-fit mating plate 42. Here, by setting the snap-fit plate 41 and the snap-fit mating plate 42, a stable carrier can be provided for the snap-fit groove 411 and the snap-fit protrusion 421 respectively, thereby enhancing the stability of the snap-fit structure.
[0068] In the specific structure, a pair of snap-fit plates 41 are provided on both sides of the upper cover 11 in the width direction. The opening direction of the snap-fit grooves 411 on the two snap-fit plates 41 on each side is perpendicular to the width direction of the upper cover 11. Furthermore, the snap-fit mating plate 42 extends outward along the width direction of the lower shell 12.
[0069] In addition, in other embodiments, a snap-fit plate 41 is provided on each side of the upper cover 11 in the width direction. The opening direction of the snap-fit groove 411 on each snap-fit plate 41 is parallel to the width direction of the upper cover 11. Furthermore, the snap-fit protrusion 421 corresponding to each snap-fit groove 411 can be directly provided on the lower housing 12.
[0070] It should be noted that in this embodiment, the top of the main body 2 of the shunt is provided with a PCB plug-in 22, and the opening of the PCB plug-in 22 is set facing forward. In specific implementation, in order to facilitate the connection between the outside and the PCB plug-in 22, the front side of the upper cover 11 adopts a structure of a pair of snap-fit plates 41, and the rear side of the upper cover 11 adopts a structure of a single snap-fit plate 41. That is, the front side of the upper cover 11 is provided with two snap-fit plates 41 arranged at intervals along the length direction of the lower housing 12. The snap-fit grooves 411 of the two snap-fit plates 41 are arranged opposite to each other. When assembling the upper cover 11 and the lower housing 12, each snap-fit groove 411 snaps into the corresponding snap-fit protrusion 421.
[0071] Meanwhile, a snap-fit plate 41 is provided on the rear side of the upper cover 11, and the snap-fit groove 411 on it is parallel to the width direction of the lower housing 12. Furthermore, the snap-fit protrusion 421 on the rear side of the lower housing 12 is mounted on the lower housing 12 and snaps into the corresponding snap-fit groove 411, thereby completing the assembly of the lower housing 12 and the upper cover 11.
[0072] Through the above design, the upper cover 11 can be limited in the front-back direction, left-right direction and up-down direction to prevent the upper cover 11 from loosening and falling off the lower housing 12, thereby reducing the risk of the copper busbar 3 coming into contact with the outside world, and thus improving the safety of the battery pack.
[0073] In addition, in this embodiment, as a preferred implementation, such as Figure 2As shown, the lower housing 12 is provided with multiple mounting bases 121 for installation, and each mounting base 121 is provided with an insert 122. Here, the mounting bases 121 facilitate the fixing of the lower housing 12.
[0074] In the specific structure, a fixing seat 121 is provided on each side of the lower housing 12 in the width direction, and the two fixing seats 121 are diagonally distributed. The lower housing 12 is fixed to the battery pack by bolts in the prior art. At the same time, the bolts are tightened in the inserts 122 to improve the connection strength of the fixing seats 121. In addition, the number of fixing seats 121 can be designed and adjusted according to actual needs. For example, four can be set and arranged at the four corners of the lower housing 12.
[0075] Furthermore, as another preferred embodiment, the diverter body 2 is embedded in the lower housing 12. This arrangement facilitates the maintenance and replacement of the diverter body 2. It should be noted that, in this embodiment, the bottom of the diverter body 2 is connected to two nuts 51 arranged at intervals along its own length, and the diverter body 2 and the nuts 51 can be connected by adhesive bonding. Of course, in addition to adhesive bonding, other common connection methods can also be used.
[0076] In practice, the lower housing 12 is provided with corresponding insertion holes for each nut 51. The main body 2 of the splitter is fixed in the lower housing 12 by inserting each nut 51 into the corresponding insertion hole.
[0077] In this embodiment, the shunt collector collection box structure is used by first fixing the lower housing 12 into the battery pack and then embedding the shunt body 2 into the lower housing 12. Next, the copper busbar 3 is connected to the shunt body 2, and the upper cover 11 is snapped onto the lower housing 12 through each snap-fit plate 41 and each snap-fit protrusion 421 to complete the assembly.
[0078] At this time, the three connecting ends 31 of the copper busbar 3 pass through the corresponding clearance openings 111. By rotating each baffle 112, the obstruction of the corresponding clearance opening 111 is released, allowing other components of the battery pack to be connected. After the connection with other components of the battery pack is released, each baffle 112 returns to its original position under the influence of the corresponding torsion spring 1122, thus blocking the corresponding clearance opening 111.
[0079] Example 2
[0080] This embodiment relates to a battery pack, which includes the shunt collector collection box structure described in Embodiment 1.
[0081] In this embodiment, the battery pack, by setting the shunt collection box structure as in Embodiment 1, allows the connecting ends 31 of the copper busbar 3 to pass through through multiple clearance openings 111, facilitating connection with other components of the battery pack. This reduces wiring clutter and also prevents external impurities and dust from entering the lower housing 12 through the baffle 112, avoiding short circuits in the shunt body 2 and thus improving the safety of the battery pack.
[0082] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A shunt collector collection box structure, characterized in that: It includes a lower housing, a splitter body disposed in the lower housing, and an upper cover disposed on the lower housing; The side wall of the lower housing and / or the side wall of the upper cover are provided with multiple clearance openings with different opening directions, and each clearance opening is used for the copper busbar connected to the main body of the splitter to pass through. The lower housing and / or the upper cover are provided with baffles for blocking the clearance opening, and each baffle is rotatably disposed on the lower housing or the upper cover, or each baffle is connected to the lower housing and / or the upper cover through a breakable connecting unit.
2. The shunt collector acquisition box structure according to claim 1, characterized in that: The sidewall includes a first sidewall located at both ends of the length direction of the lower housing, and a second sidewall located on both sides of the width direction of the lower housing. Each of the first sidewalls and each of the second sidewalls is provided with the clearance opening. And / or, Each of the baffles is located on the side of the corresponding bypass opening closest to the main body of the splitter.
3. The shunt collector acquisition box structure according to claim 1, characterized in that: Each of the baffles is mounted on the upper cover via a pivot.
4. The shunt collector acquisition box structure according to claim 3, characterized in that: Each of the baffles and the top cover is provided with an elastic element.
5. The shunt collector acquisition box structure according to claim 4, characterized in that: The elastic element is a torsion spring sleeved on the rotating shaft, with one end of the torsion spring connected to the rotating shaft and the other end of the torsion spring connected to the baffle.
6. The shunt acquisition box structure according to claim 1, characterized in that: The main body of the shunt includes a conductive plate and a PCB module.
7. The shunt acquisition box structure according to any one of claims 1 to 6, characterized in that: The upper cover is snapped onto the lower housing via a snap-fit assembly; The snap-fit assembly includes a snap-fit groove on the upper cover and a snap-fit protrusion on the lower housing, wherein the snap-fit protrusion snaps into the snap-fit groove.
8. The shunt collector acquisition box structure according to claim 7, characterized in that: The upper cover is provided with a snap-fit plate extending downward along the height direction of the lower housing, the snap-fit groove is provided on the snap-fit plate, the lower housing is provided with a snap-fit mating plate corresponding to the snap-fit plate, and the snap-fit protrusion is provided on the snap-fit mating plate.
9. The shunt collector acquisition box structure according to claim 8, characterized in that: The lower housing is provided with multiple mounting brackets, and each mounting bracket is provided with an insert; and / or, The main body of the splitter is embedded in the lower housing.
10. A battery pack, characterized in that: The battery pack is provided with a shunt collector box structure as described in any one of claims 1 to 9.