BDU assembly, battery pack and vehicle
By forming the main body part of the BDU component with the housing part, canceling the BDU bracket, and setting a cooling runner in the housing part, the problems of cumbersome assembly and poor heat dissipation of existing BDU components are solved, and more efficient assembly and Heat dissipation effect.
Patent Information
- Application Number
- CN202323532089.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-22
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2033-12-22
AI Technical Summary
The assembly process of existing BDU components is cumbersome, the production efficiency is low, and it is difficult to integrate with the water-cooled system, and the thermal conductivity is low, resulting in poor heat dissipation.
By forming the main body part and the shell part in one piece, the BDU bracket is cancelled, and the die-cast beam, die-cast box or die-cast base plate of the battery pack is directly used as the main body part of the BDU component, integrating the shell part, simplifying the assembly process, and in the shell part Set a cooling runner in the middle to improve heat dissipation effect.
The assembly process of BDU components is simplified, the production assembly efficiency and structural integration of the battery pack box are improved, the heat dissipation effect is enhanced, and the production cost is reduced.
Smart Images
Figure CN222463006U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the field of vehicle technology, and in particular to a BDU assembly, a battery pack and a vehicle. Background Art
[0002] BDU (Battery Disconnect Unit, referred to as BDU) is a short-circuit device for the battery pack. As a device for disconnecting and connecting high voltage electricity in the battery pack of new energy vehicles, it is one of the core components of the battery pack. The existing BDU is usually composed of components such as a lower shell, an upper shell, electrical components and a busbar, among which the BDU lower shell is a separate injection molded component. During installation, it is usually necessary to pre-assemble the BDU components, install the BDU bracket on the battery pack box, and then assemble the BDU to the BDU bracket, which makes the BDU assembly process cumbersome and the production efficiency low. Utility Model Content
[0003] In order to solve the above technical problems, the present disclosure provides a BDU assembly, a battery pack and a vehicle.
[0004] A first aspect of the present disclosure provides a BDU assembly, including a main body and a shell portion, wherein the main body is formed as one of a die-cast beam, a die-cast box body and a die-cast bottom plate of a battery pack, and the shell portion includes a substrate and a surrounding plate, wherein the substrate and the surrounding plate together form an installation space, and at least one of the substrate and the surrounding plate is integrally formed with the main body.
[0005] Optionally, the main body is formed as a die-cast beam of the battery pack, the enclosure is located on the substrate, the substrate is a plate-like structure, the substrate is arranged adjacent to the die-cast beam, and the side edge of the substrate is integrally die-cast with the side wall of the die-cast beam.
[0006] Optionally, the enclosure includes four plate-like structures that are connected and assembled relative to each other, and the enclosure and the base plate are combined to form the installation space for accommodating electrical components.
[0007] Optionally, a plurality of reinforcing ribs are provided between the side wall of the enclosure plate and the side wall of the die-cast beam, and each of the plurality of reinforcing ribs is connected to the side wall of the enclosure plate at one end and to the side wall of the die-cast beam at the other end.
[0008] Optionally, a cold plate cover is further included, wherein a groove is formed on the side of the base plate facing away from the enclosure plate, a limiting boss is provided at the periphery of the groove, the cold plate cover is fixed on the limiting boss to seal the groove, and a cooling channel for the circulation of coolant is formed between the groove and the cold plate cover.
[0009] Optionally, a water inlet and a water outlet connected to the cooling channel are provided on the substrate, the water inlet and the water outlet are arranged opposite to each other and are both located on the side of the substrate facing the enclosure, and the water inlet and the water outlet are arranged away from the enclosure.
[0010] Optionally, a plurality of turbulence bosses are provided at the bottom of the groove, and the plurality of turbulence bosses are arranged in rows and columns with intervals therebetween.
[0011] Optionally, a plurality of mounting points are provided in the mounting space for fixing the electrical components;
[0012] A plurality of cross beams and a plurality of connecting beams are arranged in the installation space. The plurality of cross beams are arranged one-to-one corresponding to the installation points and connected to two opposite inner walls of the enclosure. The connecting beam is connected between each two adjacent installation points.
[0013] Optionally, it also includes a connecting bracket installed in the installation space, and the electrical component includes a strong electric connector, and the strong electric connector is fixed on the connecting bracket and avoids contact with the enclosure.
[0014] Optionally, the main body is formed as a die-cast case or a die-cast bottom plate of the battery pack, the shell portion is located above the die-cast case or the die-cast bottom plate, and the bottom of the substrate of the shell portion is integrally formed with the die-cast case or the die-cast bottom plate.
[0015] A second aspect of the present disclosure provides a battery pack, comprising the BDU assembly as described above.
[0016] A third aspect of the present disclosure provides a vehicle, comprising the battery pack as described above.
[0017] Compared with the prior art, the technical solution provided by the present invention has the following advantages:
[0018] The BDU assembly provided by the present invention includes a main body and a shell body, wherein the main body is formed as one of a die-cast beam, a die-cast case and a die-cast bottom plate of the battery pack, and the shell body includes a substrate and a surround, wherein the substrate and the surround form an installation space, and at least one of the substrate and the surround is formed integrally with the main body. The BDU bracket is eliminated in this structure, and during assembly, there is no need to first fix the BDU bracket on the battery pack case, and then fix the BDU assembly on the battery pack case through the BDU bracket. Instead, one of the die-cast beam, the die-cast case and the die-cast bottom plate of the battery pack is directly used as the main body of the BDU assembly, and at least one of the substrate and the surround is formed integrally with the main body, thereby integrating the shell body into the die-cast beam, the die-cast case or the die-cast bottom plate, reducing the assembly steps between the battery pack case and the BDU assembly, making the assembly process of the BDU assembly simpler and faster, and improving the production assembly efficiency and structural integration of the battery pack case. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.
[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0021] Figure 1 It is a schematic diagram of assembling a BDU component and a battery pack in an embodiment of the present disclosure;
[0022] Figure 2 This is a schematic diagram of the assembly of a BDU component in an embodiment of the present disclosure;
[0023] Figure 3 Schematic diagram of the assembly of a BDU component in an embodiment of the present disclosure Figure 1 ;
[0024] Figure 4 Schematic diagram of the assembly of a BDU component in an embodiment of the present disclosure Figure 2 ;
[0025] Figure 5 The explosion of a BDU component in one embodiment of the present disclosure Figure 1 ;
[0026] Figure 6 The explosion of a BDU component in one embodiment of the present disclosure Figure 2 ;
[0027] Figure 7A top view of a BDU assembly in one embodiment of the present disclosure;
[0028] Figure 8 A bottom view of a BDU assembly in one embodiment of the present disclosure;
[0029] Fig. 9 A top view of a BDU assembly and a battery pack in one embodiment of the present disclosure.
[0030] Reference numerals:
[0031] 1. Electrical components; 11. Fuse; 20. Installation space; 21. Base plate; 22. Enclosure; 23. Reinforcement ribs; 24. Grooves; 25. Limiting bosses; 26. Water inlet; 27. Water outlet; 28. Turbulence bosses; 29. Installation points; 31. Die-cast beams; 32. Die-cast box; 33. Die-cast bottom plate; 4. Cold plate cover; 51. Crossbeam; 52. Connecting beam; 6. Connecting bracket. DETAILED DESCRIPTION
[0032] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.
[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.
[0034] Reference Figures 1 to 9 As shown, some embodiments of the present disclosure provide a BDU assembly, including a main body and a shell portion, the main body is formed as one of a die-cast beam 31, a die-cast box body 32 and a die-cast bottom plate 33 of a battery pack, the shell portion includes a substrate 21 and a surrounding plate 22, the substrate 21 and the surrounding plate 22 enclose an installation space 20, and at least one of the substrate 21 and the surrounding plate 22 is integrally formed with the main body.
[0035] The BDU assembly provided by the present disclosure includes a main body and a shell. The main body is formed as one of the die-cast beam 31, die-cast box body 32 and die-cast bottom plate 33 of the battery pack. The shell includes a base plate 21 and a surrounding plate 22. The base plate 21 and the surrounding plate 22 are enclosed to form an installation space 20. At least one of the base plate 21 and the surrounding plate 22 is integrally formed with the main body. In this structure, the BDU bracket is eliminated, the production cost is reduced, and the integration inside the battery pack is improved, so that during assembly, there is no need to first fix the BDU bracket on the battery pack box and then install the BDU assembly. Instead of being fixed on the battery pack case through a BDU bracket, one of the die-cast beam 31, die-cast case 32 and die-cast bottom plate 33 of the battery pack is directly used as the main body of the BDU assembly, and at least one of the substrate 21 and the enclosure 22 is integrally formed with the main body, so that the shell part is integrated into the die-cast beam 31, die-cast case 32 or die-cast bottom plate 33, reducing the assembly steps between the battery pack case and the BDU assembly, making the assembly process of the BDU assembly simpler and faster, and improving the production assembly efficiency and structural integration of the battery pack case.
[0036] In some embodiments, the die-cast box 32 and the die-cast bottom plate 33 of the battery pack are integrally die-cast, and important components such as battery modules are accommodated inside. In addition, a plurality of die-cast beams 31 are arranged in the die-cast box 32, and the plurality of die-cast beams 31 are arranged at intervals along the length direction of the die-cast box 32. By arranging a plurality of die-cast beams 31 in the die-cast box 32, the structural strength of the die-cast box 32 can be improved, the die-cast box 32 can be prevented from being deformed by extrusion, and the battery mode of the battery module in the die-cast box 32 can be improved. The main body is formed as the die-cast beam 31 of the battery pack, and the shell part is arranged adjacent to the die-cast beam 31. Specifically, the substrate 21 is a horizontally placed flat plate structure, which has four connected side edges, and the substrate 21 is rectangular, so the substrate 21 has two opposite long side edges. The enclosure 22 has four side walls that are enclosed and docked, and the enclosure 22 is rectangular, so the enclosure 22 also has two opposite long side walls. The die-cast beam 31 is a rectangular parallelepiped structure with two opposite long side walls. The extension direction of the base plate 21, the enclosure 22 and the die-cast beam 31 is the same, so the long side edges of the base plate 21, the long side walls of the enclosure 22 and the long side walls of the die-cast beam 31 are all arranged opposite to each other. At least one of the base plate 21 and the enclosure 22 is integrally die-cast with the side wall of the die-cast beam 31, and the long side edges of the base plate 21 and the long side walls of the die-cast beam 31 may be integrally die-cast, or the long side walls of the enclosure 22 and the long side walls of the die-cast beam 31 may be integrally die-cast, or the long side edges of the base plate 21 and the long side walls of the enclosure 22 may be integrally die-cast with the long side walls of the die-cast beam 31. The shell part can be die-casted integrally with the die-cast beam 31, which improves the integration of the battery pack and the BDU assembly, makes the structural form of the BDU assembly flexible, improves the production line assembly efficiency of the battery pack, speeds up the production line rhythm of the battery pack, and the shell part and the die-cast beam 31 are die-casted integrally to improve the structural strength of the BDU assembly. In actual application, at least one of the substrate 21 and the enclosure 22 and the long side wall of the die-cast beam 31 can also be injection molded or forged. The substrate 21, the enclosure 22 and the die-cast beam 31 can also be square, as long as the side wall of at least one of the substrate 21 and the enclosure 22 is integrally molded with the side wall of the die-cast beam 31.
[0037] It should be noted that the BDU assembly includes an electrical component 1, the housing portion can serve as the outer shell structure of the BDU assembly, the substrate 21 and the enclosure 22 enclose an installation space 20, and the electrical component 1 is installed in the installation space 20. Alternatively, the substrate 21 and the enclosure 22 can also serve as the lower shell of the BDU assembly, and an upper shell can be provided above the substrate 21 and the enclosure 22 to form a relatively complete BDU shell with high structural strength.
[0038] In some embodiments, reference Figures 2 to 8As shown, the base plate 21 and the enclosure 22 are both made of metal. The enclosure 22 includes four plate-like structures that are connected and spliced relative to each other. The enclosure 22 is located on the base plate 21 and encloses the base plate 21 to form an installation space 20. The installation space 20 extends in the same direction as the base plate 21. The electrical component 1 is installed in the installation space 20 to ensure the assembly stability of the electrical component 1. In addition, the long side edges of the base plate 21 and the long side walls of the enclosure 22 are integrally die-cast with the long side walls of the die-cast beam 31, thereby ensuring the structural strength between the base plate 21, the enclosure 22 and the die-cast beam 31, so that the main body and the shell of the BDU assembly are more integrated.
[0039] Furthermore, the extension direction of the enclosure 22 is the same as the extension direction of the die-cast beam 31, and the two are arranged opposite to each other and parallel to each other along the extension direction. A plurality of reinforcing ribs 23 are arranged between the long side wall of the enclosure 22 and the long side wall of the die-cast beam 31, and the plurality of reinforcing ribs 23 are arranged parallel to each other and spaced apart along the extension direction of the die-cast beam 31. One end of the plurality of reinforcing ribs 23 is connected to a long side wall of the enclosure 22 facing the die-cast beam 31, and the other end is connected to a long side wall of the die-cast beam 31 facing the enclosure 22. For example, one end of the reinforcing rib 23 is welded and fixed along the height direction of the long side wall of the enclosure 22, and the other end of the reinforcing rib is welded and fixed to the middle and lower part of the long side wall of the die-cast beam 31, thereby increasing the overall strength of the integral die-casting between the main body and the shell body, thereby improving the mechanical strength and service life of the battery pack.
[0040] The existing BDU lower shell is a separate injection-molded component, which is usually difficult to integrate with the water cooling system and has low thermal conductivity. The heat generated by the internal electrical components and busbar is difficult to transfer to the outside quickly, and the heat dissipation is poor. The temperature of the BDU will rise rapidly under extreme working conditions, and in severe cases, the electrical components may overheat and fail.
[0041] In some embodiments, reference Figure 5 and Figure 6As shown, a cold plate cover plate 4 is also included. A groove 24 is formed on the side of the substrate 21 away from the enclosure 22. A limiting boss 25 is arranged at the periphery of the groove 24. The cold plate cover plate 4 is fixed on the limiting boss 25 to cover the groove 24. Specifically, the cold plate cover plate 4 is made of aluminum sheet metal stamping process, and can be welded and fixed on the limiting boss 25 by FSW welding process, so as to form an integral structure with the substrate 21. A cooling channel for the circulation of coolant is formed between the groove 24 and the cold plate cover plate 4. The substrate 21 serves as the upper plate of the water-cooled plate of the cooling channel, and the cold plate cover plate 4 serves as the lower plate of the water-cooled plate of the cooling channel, thereby improving the heat dissipation effect of the BDU assembly, preventing the temperature of the electrical component 1 from being too high, and being able to reduce the weight of the BDU assembly to a certain extent, reduce the cost, and realize the lightweight design of the BDU assembly, so as to improve the energy density of the battery pack having the BDU assembly. At the same time, since the substrate 21 and the cold plate cover 4 are both made of metal materials, their thermal conductivity is much higher than that of plastic materials, so they can further enhance the cooling and heat dissipation effect of the BDU component, ensuring that the heat generated by the electrical components 1 of the BDU component can be dissipated in time, thereby improving the service life and safety of the BDU component.
[0042] Furthermore, the base plate 21 is provided with a water inlet 26 and a water outlet 27 connected to the cooling channel for the coolant to flow in and out. The water inlet 26 and the water outlet 27 are arranged opposite to each other and are both located on the side of the base plate 21 facing the enclosure 22, and the water inlet 26, the water outlet 27 and the base plate 21 are integrally die-casted, which reduces the assembly and welding process of the base plate 21 and reduces the cost. The water inlet 26 and the water outlet 27 are arranged away from the enclosure 22, so that after the coolant flows into the cooling channel from the water inlet 26, it can flow along the length direction of the entire cooling channel until it flows out from the water outlet 27.
[0043] It should be noted that the specific shape of the cooling channel can be flexibly set according to the size of the substrate 21 or the liquid cooling requirement. In principle, the type of coolant is not limited as long as it can cool the electrical component 1. For example, the coolant can be cooling water or the like.
[0044] Furthermore, a plurality of turbulence bosses 28 are provided at the bottom of the groove 24, and the plurality of turbulence bosses 28 are arranged in rows and columns and distributed at intervals. Turbulence is also called turbulent flow. The plurality of turbulence bosses 28 can ensure the uniformity of the coolant flow rate and form turbulence in the cooling channel, thereby improving the heat dissipation effect.
[0045] In some embodiments, reference Figure 7As shown, a plurality of mounting points 29 are provided in the mounting space 20 for fixing the electrical component 1. A plurality of crossbeams 51 and a plurality of connecting beams 52 are provided in the mounting space 20, and the plurality of crossbeams 51 are arranged at intervals along the extension direction of the mounting space 20, and are arranged one by one corresponding to the mounting points 29. The two ends of the crossbeam 51 are respectively connected to the two opposite inner walls of the enclosure 22, and the connecting beam 52 is connected between each two adjacent mounting points 29 along the extension direction of the mounting space 20. By providing the crossbeam 51 and the connecting beam 52, a connection structure can be formed between the plurality of mounting points 29, thereby improving the assembly stability of the electrical component 1 installed on the mounting point 29 to a certain extent.
[0046] In some embodiments, reference Figure 2 and Figure 5 As shown, the BDU assembly also includes a connecting bracket 6, which is installed in the installation space 20. The connecting bracket 6 can be fixed in the installation space 20 by screwing, clamping or riveting. The connecting bracket 6 adopts an injection molding process and has a metal nut embedded in it to fix it in the installation space 20. The electrical component 1 includes important components such as a fuse 11, a relay and a connector. In the actual assembly process, both ends of the fuse 11 are connected to a copper bar. If the fuse 11 is directly installed in the installation space 20, it will be conductive through the enclosure 22, causing electrical safety risks. The fuse 11 can also be called a strong current connector. The fuse 11 is fixed on the connecting bracket 6 and avoids contact with the enclosure 22. The fuse 11 is installed in the installation space 20 through the connecting bracket 6, which can not only realize the electrical connection of the fuse 11, but also prevent the enclosure 22 from being charged or the electrical clearance and creepage distance are insufficient, resulting in electrical safety risks. Other important components such as relays can be fixed to the installation point 29 in the installation space 20 by screwing. When a battery pack fails, the upper shell of the BDU assembly can be opened and removed to expose the installation space 20, so that the damaged electrical component 1 can be directly replaced without removing the BDU assembly from the entire vehicle. That is, the electrical component 1 can be directly replaced on the entire vehicle, reducing labor costs and maintenance costs, speeding up maintenance progress, achieving rapid replacement, and improving disassembly and maintenance efficiency.
[0047] It should be noted that the above embodiment is an exemplary arrangement for the main body being a die-cast beam 31. In actual application, the main body may also be other components. For example, when the main body is formed as a die-cast box 32 or a die-cast bottom plate 33 of a battery pack, the shell is located above the die-cast box 32 or the die-cast bottom plate 33, and the bottom of the substrate 21 of the shell is connected to the die-cast box 32 or the die-cast bottom plate 33, that is, during the production process of the battery pack box, the bottom of the substrate 21 is directly integrated with the die-cast box 32 or the die-cast bottom plate 33, which may be die-casting, injection molding or forging, so that the main body and shell of the BDU assembly can form a whole, thereby improving the assembly efficiency of the battery pack.
[0048] The present disclosure also provides a battery pack, referring to Figure 1 and Fig. 9 As shown, it includes a die-cast box body 32 and the above-mentioned BDU assembly, and directly uses one of the die-cast beam 31, the die-cast box body 32 or the die-cast bottom plate 33 of the battery pack as the main body, and the main body is integrally formed with at least one of the substrate 21 and the enclosure 22, thereby eliminating the BDU bracket, reducing the production cost, improving the internal integration of the battery pack, reducing the assembly steps between the battery pack box body and the BDU assembly, making the assembly process of the BDU assembly simpler and faster, and improving the production assembly efficiency and structural integration of the battery pack box, which will not be described one by one here.
[0049] The present disclosure also provides a vehicle, including the above-mentioned battery pack, which is installed inside the vehicle. Exemplarily, the vehicle is an electric vehicle or a hybrid vehicle, and the battery pack is installed on the bottom surface of the vehicle body. The technical features of the battery pack used in the vehicle can be found in the battery pack in the above-mentioned embodiment, which will not be described here one by one. It should be noted that the battery pack provided by the present disclosure can be used not only in vehicles, but also in ships or other mechanical devices.
[0050] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0051] The above are only specific embodiments of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to these embodiments herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A BDU component, characterized in that: It includes a main body and a shell part, the main body is formed as one of the die-cast beam, die-cast box body and die-cast bottom plate of the battery pack, the shell part includes a base plate and a surrounding plate, the base plate and the surrounding plate together form an installation space, and at least one of the base plate and the surrounding plate is integrally formed with the main body.
2. The BDU assembly according to claim 1, characterized in that: The main body is formed as a die-cast beam of the battery pack, the enclosure is located on the substrate, the substrate is a plate-like structure, the substrate is arranged adjacent to the die-cast beam, and the side edge of the substrate is integrally die-cast with the side wall of the die-cast beam.
3. The BDU assembly according to claim 2, characterized in that: The enclosure includes four plate-like structures that are connected and assembled relative to each other. The enclosure and the base plate are combined to form the installation space for accommodating electrical components.
4. The BDU assembly according to claim 3, characterized in that: A plurality of reinforcing ribs are arranged between the side wall of the enclosure and the side wall of the die-cast beam, and each of the plurality of reinforcing ribs is connected to the side wall of the enclosure at one end and to the side wall of the die-cast beam at the other end.
5. The BDU assembly according to claim 3, characterized in that: It also includes a cold plate cover plate, wherein a groove is formed on the side of the base plate away from the enclosure plate, a limiting boss is arranged at the periphery of the groove, the cold plate cover plate is fixed on the limiting boss to seal the groove, and a cooling channel for the circulation of coolant is formed between the groove and the cold plate cover plate.
6. The BDU assembly according to claim 5, characterized in that: The base plate is provided with a water inlet and a water outlet connected with the cooling channel, the water inlet and the water outlet are arranged opposite to each other and are both located on the side of the base plate facing the enclosure, and the water inlet and the water outlet are arranged away from the enclosure.
7. The BDU assembly according to claim 5, characterized in that: A plurality of turbulence bosses are arranged at the bottom of the groove, and the plurality of turbulence bosses are arranged in rows and columns with intervals.
8. The BDU assembly according to claim 3, characterized in that: A plurality of mounting points are provided in the mounting space for fixing the electrical components; A plurality of cross beams and a plurality of connecting beams are arranged in the installation space. The plurality of cross beams are arranged one-to-one corresponding to the installation points and connected to two opposite inner walls of the enclosure. The connecting beam is connected between each two adjacent installation points.
9. The BDU assembly according to claim 3, characterized in that: It also includes a connecting bracket installed in the installation space, and the electrical components include a strong electric connector, which is fixed on the connecting bracket and avoids contact with the enclosure.
10. The BDU assembly according to claim 1, characterized in that: The main body is formed as a die-cast box or a die-cast bottom plate of the battery pack, the shell part is located above the die-cast box or the die-cast bottom plate, and the bottom of the substrate of the shell part is integrally formed with the die-cast box or the die-cast bottom plate.
11. A battery pack, characterized in that: Comprising the BDU assembly as described in any one of claims 1-10.
12. A vehicle, characterized in that: Comprising the battery pack as claimed in claim 11.