Charging and distribution assembly and vehicle

Abstract

The invention particularly relates to a charging and distribution assembly and a vehicle. The charging and distribution assembly comprises a shell and an upper cover, the shell is provided with a containing cavity, and the upper cover covers the shell and seals the containing cavity. And the cooling water channel is detachably connected with the shell. The cooling water channel protrudes from the bottom wall of the shell to the direction of the upper cover, the containing cavity is at least divided into a first installation area and a second installation area, and the first installation area and the second installation area are respectively used for containing electric devices. The cooling water channel surrounds the first installation area, and the second installation area is located between the cooling water channel and the inner side wall of the shell. The accommodating cavity is divided into the first mounting area and the second mounting area through the cooling water channel, and the electric devices are arranged according to the specific heat dissipation requirements of the electric devices in the power charging and distribution assembly, so that the layout reasonability and flexibility of the parts in the power charging and distribution assembly can be improved, and the utilization rate of the cooling water channel can also be improved; and meanwhile, modularization is realized, integration and application with different systems are easier, and the workload of development and verification is reduced.

Description

Technical Field

[0001] This application relates to the field of new energy vehicle technology, specifically to a charging and distribution assembly and a vehicle. Background Technology

[0002] Electric vehicles (EVs) are vehicles powered by onboard electricity, using electric motors to drive their wheels. They offer good economic efficiency and relatively low environmental pollution, thus their development prospects are widely considered promising. The charging and power distribution system is a crucial component of new energy vehicles, including onboard chargers and DC-DC converters. To improve vehicle lightweighting, integration, and platformization, these components are typically integrated into a single design. During operation, all these electrical components require cooling. To ensure the cooling system's effectiveness, multiple cooling channels are usually integrated into the structural shell, coupled with the shell itself. This results in a complex cooling system structure and manufacturing process, limited component placement, high integration difficulty, complex module layout, and numerous types that are difficult to manage. Furthermore, it negatively impacts heat dissipation efficiency and development costs. Summary of the Invention

[0003] In view of this, this application provides a charging and power distribution assembly and a vehicle to solve the technical problems of complex and variable cooling systems, difficult heat dissipation layout, and high system costs in the prior art.

[0004] In a first aspect, embodiments of this application provide a charging and power distribution assembly, the charging and power distribution assembly comprising: a housing and a top cover, the housing having a receiving cavity, the top cover being disposed on the housing and sealing the receiving cavity; a cooling water channel detachably connected to the housing; wherein the cooling water channel protrudes from the bottom wall of the housing toward the top cover, dividing the receiving cavity into at least a first mounting area and a second mounting area, the first mounting area and the second mounting area being used to house electrical components; the cooling water channel surrounding the first mounting area, and the second mounting area being located between the cooling water channel and the inner sidewall of the housing.

[0005] In this embodiment, the cooling water channel and the housing are detachably connected. Compared to related technologies, where the water channel structure protrudes from the bottom wall of the housing towards the top cover (i.e., the water channel structure and the housing are an integral design), this facilitates the installation and disassembly of the cooling water channel and the housing, and makes it easier to replace or repair the cooling water channel later. Furthermore, it improves the applicability of the cooling water channel. When the housing is damaged or requires dimensional adjustment, only the housing needs to be replaced or adjusted; the cooling water channel can be reused. This reduces the development and verification cycle required for manufacturing the charging and distribution assembly and the difficulty of housing design, thereby reducing the variety of types, increasing scale, and lowering the housing manufacturing cost.

[0006] Meanwhile, the cooling water channels divide the housing into a first mounting area and a second mounting area, allowing the electrical components within the charging and distribution assembly to be housed within these areas respectively. The cooling water channels surround the first mounting area, thus it can accommodate electrical components with high heat dissipation requirements, such as OBC transformer modules, DC-DC transformer modules, and rectifier inductor-capacitor modules. This increases the contact area between the cooling water channels and these components, while simultaneously reducing the channel wall thickness, thereby improving the cooling effect and meeting the higher heat dissipation needs of these components. The second mounting area is located between the cooling water channels and the inner wall of the housing; therefore, it can accommodate electrical components with lower heat dissipation requirements, such as control circuit modules. In summary, by dividing the housing into a first installation area and a second installation area through cooling water channels, and arranging the positions of the electrical components within the charging and distribution assembly according to their specific heat dissipation requirements, the layout rationality of the components within the charging and distribution assembly can be improved. This also increases the utilization rate of the cooling water channels, thereby enhancing the cooling effect, ensuring the safety of the electrical components within the charging and distribution assembly, and improving the design flexibility of the charging and distribution module.

[0007] In one specific embodiment, the cooling water channel includes a connecting part and a cooling part that are interconnected; the housing is provided with a first liquid inlet pipe and a first liquid outlet pipe, and the connecting part is correspondingly provided with a first connecting pipe, which is connected to the first liquid inlet pipe and the first liquid outlet pipe respectively; the cooling part includes a first liquid inlet and a first liquid outlet, and the connecting part is also correspondingly provided with two first connecting ports, which are respectively connected to the two first liquid inlet pipes and the first liquid outlet.

[0008] In one specific embodiment, the first inlet pipe and the first outlet pipe penetrate the bottom wall of the housing; the first connecting pipe is respectively housed in the first inlet pipe and the first outlet pipe, the outer diameter of the first connecting pipe connected to the first inlet pipe is less than or equal to the inner diameter of the first inlet pipe, and the outer diameter of the first connecting pipe connected to the first outlet pipe is equal to the inner diameter of the first outlet pipe; each of the first connecting pipes is fitted with a sealing element.

[0009] In one specific embodiment, the interior of the cooling section includes a first cooling circuit and a second cooling circuit arranged along the height direction of the charging and distribution assembly. The first cooling circuit and the second cooling circuit are independently arranged. The first liquid inlet and the first liquid outlet are provided at both ends of the first cooling circuit and the second cooling circuit.

[0010] In one specific embodiment, the cooling section includes an integrally formed and interconnected first extension and second extension, the first extension extending along the length direction of the charging and distribution assembly, and the second extension extending along the width direction of the charging and distribution assembly; the first extension, the second extension, and the connecting portion form a first mounting area, and the first extension, the second extension, and the connecting portion form a second mounting area between themselves and the inner wall of the housing.

[0011] In one specific embodiment, the cooling section may further include a bending section connecting the first extension and the second extension; the bending radius of the bending section is greater than or equal to twice the thickness of the first extension and / or the second extension.

[0012] In one specific embodiment, the cooling water channel further includes a partition, which is disposed within the first mounting area, and both ends of the partition abut against the first extension and the second extension, respectively.

[0013] In one specific embodiment, the end of the connecting portion away from the cooling portion also has a first mounting portion, and the connecting portion is connected to the bottom wall of the housing through the first mounting portion; the outer wall of the cooling portion away from the connecting portion also has a second mounting portion, and the cooling portion is connected to the top cover through the second mounting portion.

[0014] In one specific embodiment, the charging and power distribution assembly further includes a surface-mount MOSFET disposed on the side of the first extension facing the housing; the charging and power distribution assembly further includes an insulating member disposed between the first extension and the surface-mount MOSFET.

[0015] Secondly, embodiments of this application also provide a vehicle including the charging and distribution assembly described in the above embodiments.

[0016] In this embodiment, by improving the heat dissipation effect of the charging and power distribution assembly during use, the conversion efficiency is improved. At the same time, modularization is achieved, making it easier to integrate with different vehicle systems, thereby improving its stability and safety, and further enhancing the vehicle's safety, reliability and overall vehicle versatility. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A structural diagram of the charging and power distribution assembly provided in this application in a specific embodiment; Figure 2 A structural diagram of the charging and distribution assembly provided in this application in another specific embodiment; Figure 3 A structural diagram of the charging and power distribution assembly provided in this application in yet another specific embodiment; Figure 4 for Figure 3 Schematic diagram of the structure of the shielding cavity and the shell; Figure 5 for Figure 3 Exploded view of the central cooling water passage and shell; Figure 6 for Figure 5 Exploded view of the central cooling water channel; Figure 7 for Figure 6 Top view; Figure 8 for Figure 6 Side view; Figure 9 for Figure 3 A schematic diagram of the structure of the central cooling water channel, surface-mount MOSFET, and shielding plate; Figure 10 for Figure 4 A schematic diagram of the structure of the shielding cavity.

[0019] Figure label: 1-Charging and power distribution assembly; 11-Shell; 111 - Receiving cavity; 112 - First Installation Area; 113 - Second Installation Area; 114 - First inlet pipe; 115 - First outlet pipe; 12-Top cover; 13-Cooling water channel; 131 - Connecting part; 131a - First connecting pipe; 131b - First connection port; 131c - First Installation Section; 132 - Cooling section; 132a - First liquid inlet; 132b - First liquid outlet; 132c - First cooling circuit; 132d - Second cooling circuit; 132e - Second Installation Section; 132f - First extension; 132g - Second extension; 132h - Bending section; 133 - Separator; 14-Shielding plate; 15-Surface mount MOSFET; 16-OBC Transformer; 17-DC-DC transformer; 18-Shielding cavity; 181-Cavity; 182 - Cover plate; 19-Insulating components. Detailed Implementation

[0020] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0021] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0022] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0023] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0024] Electric vehicles (EVs) are vehicles powered by batteries and driven by electric motors. They offer good economic efficiency and relatively low environmental pollution, making their development prospects highly promising. The charging and power distribution system is a crucial component of new energy vehicles, including on-board chargers and DC-DC converters to convert AC power to DC power for charging the battery and supplying the vehicle with low-voltage 12V. To improve vehicle lightweighting, integration, platformization, and economy, these components are typically integrated. During operation, all these electrical components require cooling. To ensure effective cooling, the system usually incorporates multiple cooling channels coupled to the structural shell, leading to complex cooling system structure and manufacturing processes. This also restricts the placement of electrical components, making integration difficult, module layout challenging, and management complex, ultimately impacting heat dissipation efficiency and development costs.

[0025] To solve the above technical problems, such as Figures 1 to 5 As shown in the figure, this application embodiment provides a charging and power distribution assembly 1, including a housing 11 and a top cover 12. The housing 11 has a receiving cavity 111, and the top cover 12 covers the housing 11 and seals the receiving cavity 111. The charging and power distribution assembly 1 also includes a cooling water channel 13, which is detachably connected to the housing 11. The cooling water channel 13 protrudes from the bottom wall of the housing 11 toward the top cover 12, dividing the receiving cavity 111 into at least a first mounting area 112 and a second mounting area 113. The first mounting area 112 and the second mounting area 113 are used to house electrical components. The cooling water channel 13 may surround the first mounting area 112, and the second mounting area 113 may be located between the cooling water channel 13 and the inner sidewall of the housing 11.

[0026] In this embodiment, the cooling water channel 13 is detachably connected to the housing 11. Compared to related technologies, where the water channel structure protrudes from the bottom wall of the housing towards the top cover 12 (i.e., the water channel structure and the housing are an integral design), this facilitates the installation or removal of the cooling water channel 13 and the housing 11, and makes it easier to replace or repair the cooling water channel 13 later. Furthermore, it improves the applicability of the cooling water channel 13. When the housing 11 is damaged or requires dimensional adjustment, only the housing 11 needs to be replaced or adjusted; the cooling water channel 13 can be universally used. This reduces the development and verification cycle required to manufacture the charging and distribution assembly 1 and the difficulty of housing design, thereby reducing the variety of types, increasing scale, and lowering the manufacturing cost of the housing 11.

[0027] Meanwhile, the cooling water channel 13 can divide the receiving cavity 111 into a first mounting area 112 and a second mounting area 113 (e.g. Figure 2(As shown in the dashed box), so that the electrical components within the charging and distribution assembly 1 can be respectively housed in the first mounting area 112 and the second mounting area 113. The cooling water channel 13 surrounds the first mounting area 112, thus the first mounting area 112 can be used to house electrical components with high heat dissipation requirements, such as OBC transformer modules, DC-DC transformer modules, rectifier inductor-capacitor modules, etc., to increase the contact area between the cooling water channel 13 and the aforementioned electrical components, while reducing the channel wall thickness, thereby improving the cooling effect of the cooling water channel 13 on the aforementioned electrical components, and thus meeting the high heat dissipation requirements of the aforementioned electrical components. Meanwhile, the second mounting area 113 is located between the cooling water channel 13 and the inner wall of the housing 11, therefore, the second mounting area 113 can be used to house electrical components with lower heat dissipation requirements, such as control circuit modules, etc. In summary, by dividing the receiving cavity 111 into a first mounting area 112 and a second mounting area 113 through the cooling water channel 13, and arranging the positions of the electrical components in the charging and distribution assembly 1 according to their specific heat dissipation requirements, the layout rationality of the components inside the charging and distribution assembly 1 can be improved, and the utilization rate of the cooling water channel 13 can also be improved to enhance the cooling effect, ensure the safety of the electrical components in the charging and distribution assembly 1, and improve the design flexibility of the charging and distribution module.

[0028] In one specific embodiment, such as Figure 5 and Figure 6 As shown, the cooling water channel 13 may include a connecting portion 131 and a cooling portion 132 that are interconnected. The housing 11 has a first liquid inlet pipe 114 and a first liquid outlet pipe 115. The connecting portion 131 is correspondingly provided with a first connecting pipe 131a, which is connected to the first liquid inlet pipe 114 and the first liquid outlet pipe 115 respectively. The cooling portion 132 may also include a first liquid inlet 132a and a first liquid outlet 132b. The connecting portion 131 is also provided with a first connecting port 131b, which is connected to the first liquid inlet 132a and the first liquid outlet 132b respectively.

[0029] This design allows external coolant to flow through the first inlet pipe 114 into the first connecting pipe 131a, and then through the first connecting port 131b to the first inlet port 132a of the cooling section 132, thus entering the cooling section 132. It can also flow through the first outlet port 132b to the first connecting port 131b, and then through the first connecting pipe 131a to the first outlet pipe 115, enabling the coolant to circulate within the cooling section 132 and thereby cooling the electrical components in the first mounting area 112 and the second mounting area 113.

[0030] In this embodiment, the first connecting pipe 131a and the first connecting port 131b can be arranged in different directions so that the coolant can change its flow direction through the first connecting pipe 131a and the first connecting port 131b. This eliminates the need for the first liquid inlet 132a and the first liquid outlet 132b of the cooling section 132 to be aligned with the first liquid inlet pipe 114 and the first liquid outlet pipe 115, thereby improving the installation flexibility of the cooling water channel 13 and facilitating the layout of the cooling water channel 13.

[0031] In the above embodiments, such as Figure 5 and Figure 6 As shown, the first inlet pipe 114 and the first outlet pipe 115 can penetrate the bottom wall of the housing 11. The first connecting pipe 131a can be accommodated in the first inlet pipe 114 and the first outlet pipe 115 respectively, and the outer diameter of the first connecting pipe 131a can be less than or equal to the inner diameter of the first inlet pipe 114 and / or the first outlet pipe 115.

[0032] With this design, the first liquid inlet pipe 114 and the first liquid outlet pipe 115 penetrate the bottom wall of the housing 11, so that the openings of the first liquid inlet pipe 114 and the first liquid outlet pipe 115 at one end in the receiving cavity 111 face the upper cover. This makes it easier to insert the first connecting pipe 131a into the first liquid inlet pipe 114 and the first liquid outlet pipe 115 when installing the cooling water channel 13, thus reducing the installation difficulty of the cooling water channel 13.

[0033] Meanwhile, a sealing element can also be fitted onto the first connecting pipe 131a. This design can also improve the sealing effect when the first connecting pipe 131a is inserted into the first liquid inlet pipe 114 and / or the first liquid outlet pipe 115, thus preventing coolant leakage.

[0034] In the above embodiments, please also refer to Figure 7 and Figure 8 As shown, the interior of the cooling section 132 may include a first cooling circuit 132c and a second cooling circuit 132d arranged along the height direction of the charging and distribution assembly 1. The first cooling circuit 132c and the second cooling circuit 132d are independently arranged. Both ends of the first cooling circuit 132c and the second cooling circuit 132d are provided with a first liquid inlet 132a and a first liquid outlet 132b.

[0035] This design allows coolant to circulate in all areas of the cooling section 132 along the height of the charging and distribution assembly 1, increasing the contact area between the coolant and the electrical components within the assembly 1 and thus improving the heat dissipation effect of the cooling section 132. Simultaneously, the first cooling circuit 132c and the second cooling circuit 132d are independently configured, allowing the coolant to circulate separately and independently in both circuits. This prevents insufficient external coolant supply pressure from preventing the upper cooling circuit from becoming completely filled with coolant, which would affect the cooling effect of the cooling channel 13 near the upper cover area.

[0036] The first cooling circuit 132c has a first liquid inlet 132a and a first liquid outlet 132b at both ends, and the second cooling circuit 132d also has a first liquid inlet 132a and a first liquid outlet 132b at both ends, so that both the first cooling circuit 132c and the second cooling circuit 132d can be connected to the first connection port 131b of the connecting part 131. Simultaneously, the two first connection ports 131b on the connecting part 131 can extend along the height direction of the charging and distribution assembly, so that the two first liquid inlets 132a and the first liquid outlets 132b of the first cooling circuit 132c and the second cooling circuit 132d can be simultaneously connected to the two first connection ports 131b, allowing the coolant to flow synchronously into the first cooling circuit 132c and the second cooling circuit 132d, and then be discharged after circulation.

[0037] In addition, the interior of the first cooling circuit 132c and the second cooling circuit 132d can also be an integral layered profile that is interconnected, so as to further ensure that the coolant can fill all areas of the cooling section 132.

[0038] In other embodiments, the interior of the cooling section 132 may be divided into three or more independently configured cooling circuits to further improve the uniformity of coolant flow to various regions of the cooling section 132 along the height direction of the charging and distribution assembly 1. In this embodiment, the number of cooling circuits within the cooling section 132 is not limited and can be adjusted adaptively according to actual conditions.

[0039] In the above embodiments, such as Figure 3 and Figure 5 As shown, the cooling section 132 may include an integrally formed and interconnected first extension 132f and second extension 132g. The first extension 132f extends along the length direction of the charging and power distribution assembly 1, and the second extension 132g extends along the width direction of the charging and power distribution assembly 1.

[0040] The first extension 132f, the second extension 132g, and the connecting portion 131 form a first mounting area 112. This design allows the electrical components in the first mounting area 112 to simultaneously contact both the first extension 132f and the second extension 132g, increasing the contact area between the cooling portion 132 and the electrical components in the first mounting area 112. This enhances the cooling effect of the cooling portion 132 on the electrical components in the first mounting area 112, meeting the high heat dissipation requirements of the electrical components in the first mounting area 112. Simultaneously, the first extension 132f and the connecting portion 131, along with the inner wall of the housing 11, form a second mounting area 113. This design allows the electrical components in the second mounting area 113 to contact the first extension 132f, meeting the lower heat dissipation requirements of the electrical components in the second mounting area.

[0041] In the above embodiments, the cooling section 132 may further include a bending section 132h, which connects the first extension 132f and the second extension 132g. The bending radius of the bending section 132h is greater than or equal to twice the thickness of the first extension 132f and / or the second extension 132g.

[0042] In this embodiment, when the coolant circulates within the cooling section 132, the flow direction can be from the first extension 132f connected to the first inlet 132a to the second extension 132g, then through the second extension 132g to the first extension 132f connected to the first outlet 132b, and can be discharged through the first outlet 132b. Therefore, a bend 132h is provided between the first extension 132f and the second extension 132g, and the bend 132h is made to be greater than or equal to twice the thickness of the first extension 132f and / or the second extension 132g. This makes the change in the coolant flow direction more gradual when the coolant flows between the first extension 132f and the second extension 132g, reducing resistance to coolant flow and preventing coolant backflow or incomplete filling within the cooling section 132, thereby further improving the cooling effect of the cooling section 132.

[0043] In this embodiment, the overall structure of the cooling water channel 13 can be U-shaped, and the length of the first extension 132f can be greater than that of the second extension 132g. In other embodiments, the cooling water channel 13 can also have other structural forms. The specific structural form of the cooling water channel 13 is not limited in this application embodiment.

[0044] In the above embodiments, the cooling channel 13 can be integrally bent using an extruded aluminum process. This allows the cooling channel 13 to maintain structural strength while reducing its weight, thereby improving the overall portability of the charging and distribution assembly 1. Furthermore, the thinner thickness of the cooling channel 13 reduces its thermal resistance, improving cooling efficiency. Compared to other structures, extruded aluminum has better thermal conductivity, facilitating the transfer of heat from the internal electrical components of the charging and distribution assembly 1 to the first extension 132f and / or the second extension 132g of the cooling channel 13. Additionally, the reduced cost of extruded aluminum profiles lowers the manufacturing cost of the cooling channel 13.

[0045] In the above embodiments, such as Figure 3 and Figure 8 As shown, the cooling water channel 13 may also have a partition 133, which can be disposed within the first mounting area 112, and both ends of the partition 133 abut against the first extensions 132f on both sides of the cooling water channel 13. This design allows the first mounting area 112 to be divided into multiple mounting sub-areas for installing different electrical components. The partition 133 also provides EMC shielding for the high-frequency electrical components in different mounting sub-areas, preventing mutual interference and radiation from the components during use, thus avoiding damage to the entire vehicle system.

[0046] In this embodiment, the separator 133 can be a metal shielding plate. Along the length of the charging and distribution assembly 1, the OBC transformer 16 and the DC-DC transformer 17 can be installed sequentially in the first installation area 112, and the separator 133 is disposed between the OBC transformer 16 and the DC-DC transformer 17.

[0047] In the above embodiments, such as Figure 5 and Figure 6 As shown, the end of the connecting portion 131 away from the cooling portion 132 may also have a first mounting portion 131c, through which the connecting portion 131 is connected to the bottom wall of the housing 11. The end of the cooling portion 132 away from the connecting portion 131 may also have a second mounting portion 132e, through which the cooling portion 132 is connected to the top cover.

[0048] With this design, a first mounting part 131c and a second mounting part 132e are respectively provided on the connecting part 131 and the cooling part 132. That is, mounting points for connection to the housing 11 are respectively provided at both ends of the cooling water channel 13 along the charging and distribution assembly 1, thereby improving the connection reliability between the cooling water channel 13 and the housing 11. Among them, the first mounting part 131c can be provided at the position of the connecting part 131 facing the first connecting pipe 131a. While ensuring the connection reliability, it can also guide the connection between the first connecting pipe 131a and the first liquid inlet pipe 114 and the first liquid outlet pipe 115 on the housing 11.

[0049] Meanwhile, both the first mounting portion 131c and the second mounting portion 132e may include two mounting points spaced apart along the width direction of the charging and distribution assembly 1, to further improve the connection reliability between the cooling water channel 13 and the housing 11 and prevent the cooling water channel 13 from falling off or deflecting. The first mounting portion 131c and the second mounting portion 132e may be screwed to the housing 11.

[0050] In one specific embodiment, such as Figure 3 , Figure 5 and Figure 9 As shown, the charging and power distribution assembly 1 may also have a surface mount MOSFET 15, which is disposed at one end of the first extension 132f facing the housing 11, and the charging and power distribution assembly 1 may also have an insulating member 19, which is disposed between the first extension 132f and the surface mount MOSFET.

[0051] This design, employing a surface-mount MOSFET 15, eliminates the need for bending leads and manual insertion during soldering, as well as the need for sheet metal clamping structures, resulting in cumbersome, inefficient, and costly installation. In this embodiment, the surface-mount MOSFET 15 eliminates these steps, allowing for automatic placement using a pick-and-place machine, simplifying the installation process and improving efficiency. The surface-mount MOSFET 15 features top-mount heat dissipation, offering good performance and low heat dissipation requirements. Furthermore, positioning the surface-mount MOSFET 15 on the first extension 132f facilitates cooling by the extension, further meeting the heat dissipation needs of the surface-mount MOSFET 15.

[0052] In the above embodiments, an insulating film can be provided between the surface-mount MOSFET 15 and the first extension 132f to ensure the insulation effect between them. In this embodiment, the insulating film can be a polyimide film. Polyimide films have a wide temperature range, meeting the requirements of -269℃ to 260℃, and can withstand high temperatures of 400℃ for short periods. They also possess high strength, high insulation, low node loss, and excellent chemical stability, simultaneously meeting the requirements for high-temperature, high-frequency, and high-reliability applications. By using a polyimide insulating film, the safety of use under high-voltage environments is ensured. Furthermore, a filler process can be added during the preparation of the polyimide insulating film to improve its thermal conductivity, thereby facilitating the transfer of heat from the surface-mount MOSFET 15 to the first extension 132f, further enhancing the heat dissipation effect of the surface-mount MOSFET 15.

[0053] In the above embodiments, the charging and power distribution assembly 1 may also include a shielding plate 14, which is fixedly connected to the bottom wall of the housing 11. The shielding plate 14 may be a PCB board, which has a good insulation and shielding effect and provides insulation and shielding between the surface mount MOSFET 15 and other electrical components in the second mounting area.

[0054] In the above embodiments, such as Figure 3 and Figure 4 As shown, the charging and distribution assembly 1 may also have a shielding cavity 18, which is disposed within the second mounting area 113. The shielding cavity 18 can be detachably connected to the bottom wall of the housing 11, and the electrical components within the second mounting area 113 can be housed within the shielding cavity 18. This design provides protection and electromagnetic shielding for the electrical components within the second mounting area 113, preventing short circuits or other electromagnetic interference during manufacturing and use, thus ensuring their normal function. Specifically, as... Figure 10 As shown, the shielding cavity 18 can be composed of a cavity 181 and a cover plate 182. Electrical components can be housed between the cavity 181 and the cover plate 182. The cover plate 182 further enhances the shielding and protection effect on the electrical components. The shielding cavity 18 can be detachably connected to the housing 11 through the mounting point at the bottom of the cavity 181, which facilitates the installation or replacement of the shielding cavity 18.

[0055] In one specific embodiment, an insulating pad (not shown in the figure) can be provided on the side of the bottom wall of the housing 11 away from the receiving cavity 111. This allows the heat generated by the electrical components to be conducted through the bottom wall of the housing 11 to the insulating pad, thereby further improving the cooling effect on the electrical components inside the receiving cavity 111. The insulating pad can be a composite structure combining a basic insulating substrate and functional thermally conductive fillers, such as a thermally conductive silicone pad made with silicone as the substrate and fillers such as metal oxides and nitrides.

[0056] In one specific embodiment, the top wall of the upper cover 12 may also be provided with a power distribution module, including relays, fuses and connectors arranged at intervals, all of which adopt integrated plug-in components and do not require wiring harness connection.

[0057] This application embodiment also provides a vehicle that may include the charging and power distribution assembly 1 in the above embodiments. By improving the heat dissipation effect of the charging and power distribution assembly 1 during use, the conversion efficiency is improved. At the same time, it is modularized and easier to integrate with different vehicle systems, thereby improving its stability and safety in use, and further improving the vehicle's safety, reliability and universality in use.

[0058] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A charging and distribution assembly, characterized in that, The charging and power distribution assembly includes: A housing and a top cover, wherein the housing has a receiving cavity, and the top cover covers the housing and seals the receiving cavity; Cooling water channels, which are detachably connected to the housing; The cooling water channel protrudes from the bottom wall of the housing toward the top cover, dividing the receiving cavity into at least a first mounting area and a second mounting area, which are used to house electrical components; the cooling water channel surrounds the first mounting area, and the second mounting area is located between the cooling water channel and the inner sidewall of the housing.

2. The charging and distribution assembly according to claim 1, characterized in that, The cooling water channel includes a connecting part and a cooling part that are interconnected; the shell is provided with a first liquid inlet pipe and a first liquid outlet pipe, and the connecting part is provided with two first connecting pipes, which are respectively connected to the first liquid inlet pipe and the first liquid outlet pipe. The cooling section includes a first liquid inlet and a first liquid outlet, and the connecting section is also provided with two first connection ports, which are respectively connected to the first liquid inlet and the first liquid outlet.

3. The charging and distribution assembly according to claim 2, characterized in that, The first inlet pipe and the first outlet pipe penetrate the bottom wall of the housing; The first connecting pipe is respectively housed in the first inlet pipe and the first outlet pipe. The outer diameter of the first connecting pipe connected to the first inlet pipe is less than or equal to the inner diameter of the first inlet pipe, and the outer diameter of the first connecting pipe connected to the first outlet pipe is less than or equal to the inner diameter of the first outlet pipe. Each of the first connecting pipes is fitted with a sealing element.

4. The charging and distribution assembly according to claim 2, characterized in that, The interior of the cooling section includes a first cooling circuit and a second cooling circuit arranged along the height direction of the charging and distribution assembly. The first cooling circuit and the second cooling circuit are independently configured. The first liquid inlet and the first liquid outlet are provided at both ends of the first cooling circuit and the second cooling circuit.

5. The charging and distribution assembly according to any one of claims 1 to 4, characterized in that, The cooling section includes an integrally formed first extension and a second extension that are interconnected. The first extension extends along the length direction of the charging and distribution assembly, and the second extension extends along the width direction of the charging and distribution assembly. The first extension, the second extension, and the connecting portion form the first mounting area, and the first extension, the second extension, and the connecting portion form the second mounting area between themselves and the inner wall of the housing.

6. The charging and distribution assembly according to claim 5, characterized in that, The cooling section may further include a bending section, which connects the first extension and the second extension; The bending radius of the bent portion is greater than or equal to twice the thickness of the first extension and / or the second extension.

7. The charging and distribution assembly according to claim 5, characterized in that, The cooling water channel also has a separator, which is disposed in the first installation area, and the two ends of the separator abut against the first extension and the second extension, respectively.

8. The charging and distribution assembly according to claim 7, characterized in that, The separator is a metal shielding plate. Along the length of the charging and distribution assembly, an OBC transformer and a DC-DC transformer are installed sequentially in the first installation area, and the separator is located between the OBC transformer and the DC-DC transformer.

9. The charging and distribution assembly according to claim 5, characterized in that, The charging and power distribution assembly also includes a surface-mount MOSFET, which is disposed on the side of the first extension facing the housing; The charging and distribution assembly also includes an insulating component disposed between the first extension and the surface-mount MOS transistor.

10. A vehicle, characterized in that, The vehicle includes the charging and power distribution assembly as described in any one of claims 1-9.

Images