Electrical protection device, power domain control assembly, power system and vehicle

Abstract

The utility model discloses an electrical protection device, a power domain control assembly, a power system and a vehicle, and relates to the technical field of vehicles. The electrical protection device comprises a wire holder and a connecting bar group, the connecting bar group comprises a plurality of connecting bars, parts of the connecting bars are embedded in the wire holder, two opposite ends of the connecting bars are first connecting ends, and the two opposite first connecting ends of the connecting bars are respectively constructed into an electric control connecting end and a motor connecting end. Partial structures of the plurality of connecting bars are plastic-coated in the wire holder, and the plurality of connecting bars can be integrated in the wire holder, so that all parts of the electrical protection device are compactly arranged, the size and occupied space of the electrical protection device are reduced, the integration degree of the electrical protection device is improved, and the electrical protection device is convenient to assemble and disassemble. And other parts of the vehicle can be conveniently arranged.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to an electrical protection device, a power domain control assembly, a power system, and a vehicle. Background Technology

[0002] In related technologies, the electrical protection devices in the power domain control assembly have low space utilization and low integration, which does not meet the current demand for high integration, and the cost is high. Therefore, there is an urgent need for a device with a high degree of integration. Utility Model Content

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide an electrical protection device with a high degree of integration, which can improve space utilization and reduce costs.

[0004] This utility model further proposes a power domain control assembly with the above-mentioned electrical protection device.

[0005] This utility model further proposes a power system having the above-mentioned electrical protection device or power domain control assembly.

[0006] This utility model further proposes a vehicle having the above-mentioned power system.

[0007] An electrical protection device according to an embodiment of the present invention is used in a power domain control assembly. The electrical protection device includes: a terminal block and a connecting strip group. The connecting strip group includes multiple connecting strips. Parts of the connecting strips are embedded in the terminal block. Both opposite ends of the connecting strips are first connecting ends. The two opposite first connecting ends of the connecting strips are respectively configured as an electrical control connecting end and a motor connecting end.

[0008] According to the embodiment of the present utility model, the electrical protection device integrates multiple connecting bars into the terminal block by encapsulating the partial structure of multiple connecting bars in plastic, thereby making the components of the electrical protection device compact, reducing the size and space occupied by the electrical protection device, which is beneficial to improving the integration level of the electrical protection device, reducing costs, and facilitating the arrangement of other vehicle components.

[0009] According to some embodiments of the present invention, the terminal block defines a plurality of receiving slots, and the plurality of receiving slots correspond one-to-one with a plurality of first connecting ends, with at least a portion of the first connecting end being received in the corresponding receiving slot.

[0010] According to some embodiments of the present invention, the first connecting end has a first crimping hole.

[0011] According to some embodiments of the present invention, the electrical protection device further includes a fuse, which is disposed on the terminal block and electrically connected to the connection group.

[0012] According to some embodiments of the present invention, the fuse includes: a housing and a first mating part, the first mating part being disposed on the housing, and the terminal block having a second mating part, the second mating part being fitted with the first mating part to assemble the fuse on the terminal block.

[0013] According to some embodiments of the present invention, the first mating part is constructed as a first mating post, the second mating part is constructed as a first mating hole, and the first mating post passes through the first mating hole and is mated with the first mating hole.

[0014] According to some embodiments of the present invention, there are multiple first mating parts, and the multiple first mating parts are distributed at the edge of the cross-section of the shell.

[0015] According to some embodiments of the present invention, the fuse further includes a support portion, which passes through the housing and is connected to the first mating portion.

[0016] According to some embodiments of the present invention, the first mating part is disposed at one end of the housing near the terminal block, one end of the support part is connected to the first mating part, and the other end of the support part is located on the outside of the housing and abuts against the housing.

[0017] According to some embodiments of the present invention, the first mating part has a connecting hole, the connecting hole has an internal thread, and the supporting part has an external thread that mates with the internal thread.

[0018] According to some embodiments of the present invention, the fuse further includes: a plurality of second connecting ends and a plurality of connecting members, wherein the plurality of connecting members correspond one-to-one with the plurality of second connecting ends, the second connecting ends have second crimping holes, and the connecting members pass through the corresponding second crimping holes and are electrically connected to the portion of the connecting bar embedded in the terminal block.

[0019] According to some embodiments of the present invention, the terminal block has a plurality of clearance holes, and a plurality of connectors correspond one-to-one with the plurality of clearance holes, with the connectors passing through the corresponding clearance holes.

[0020] According to some embodiments of the present invention, the fuse further includes a connection port adapted to be electrically connected to a control circuit board, and the fuse is used to cut off the control circuit of the electrical protection device according to the control signal of the control circuit board.

[0021] According to some embodiments of the present invention, there are two sets of connecting groups along a first direction, with the two sets of connecting groups spaced apart, and there are two fuses, which are electrically connected to the two connecting groups respectively.

[0022] According to some embodiments of the present invention, the electrical protection device further includes: a sealing element, the sealing element being disposed on the terminal block, along the second direction, the electrical control connection end being located on one side of the sealing element, and the motor connection end being located on the other side of the sealing element.

[0023] According to some embodiments of the present invention, the connection busbar group includes three connection busbars to form a three-phase electrical connection busbar.

[0024] According to an embodiment of the present invention, the power domain control assembly includes the electrical protection device described in the above embodiment.

[0025] According to the power system of the present invention, the power system includes the electrical protection device of the above embodiment or the power domain control assembly of the above embodiment.

[0026] The vehicle according to an embodiment of the present invention includes the power system described in the above embodiment.

[0027] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0028] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0029] Figure 1 This is a schematic diagram of an electrical protection device according to an embodiment of the present utility model;

[0030] Figure 2 This is an exploded schematic diagram of an electrical protection device according to an embodiment of the present utility model;

[0031] Figure 3 This is a schematic diagram of a fuse according to an embodiment of the present utility model;

[0032] Figure 4 This is a cross-sectional view of a fuse according to an embodiment of the present utility model.

[0033] Figure label:

[0034] Terminal block 1; receiving groove 11; clearance hole 12; protective sleeve 13; fixing nut 14;

[0035] Connecting strip group 2; connecting strip 21; first connecting end 211; first crimping hole 2111;

[0036] Fuse 3; Housing 31; First mating part 32; Connecting hole 321; Support part 33; Second connecting end 34; Second crimping hole 341; Connector 35; Connecting port 36;

[0037] Seal 4;

[0038] Electrical protection device 100. Detailed Implementation

[0039] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0040] The following description, with reference to the accompanying drawings, describes an electrical protection device 100, a power domain control assembly, a power system, and a vehicle according to embodiments of the present invention.

[0041] like Figure 1 and Figure 2 As shown, according to an embodiment of the present utility model, the electrical protection device 100 is used in the power domain control assembly. The electrical protection device 100 includes: a terminal block 1 and a connection group 2. The connection group 2 includes a plurality of connection groups 21. Parts of the connection groups 21 are embedded in the terminal block 1. The two opposite ends of the connection groups 21 are both first connection ends 211. The two opposite first connection ends 211 of the connection groups 21 are respectively configured as an electrical control connection end and a motor connection end.

[0042] The electrical protection device 100 can be used in the power domain control assembly, and the terminal block 1 can be the main body of the electrical protection device 100. The terminal block 1 can be used to fix the connection group 2, which includes multiple connection groups 21. As some embodiments of this utility model, each connection group 2 can include three, four, or five connection groups 21, and the multiple connection groups 21 can be arranged along... Figure 1 and Figure 2 As shown, multiple connecting rows 21 are arranged at intervals in the first direction, and each connecting row 21 is conductive. Each connecting row 21 has two opposing first connecting ends 211, and the two opposing first connecting ends 211 of each connecting row 21 can be connected along... Figure 1 and Figure 2The second-direction spacing arrangement shown allows the two first connection ends 211 to be electrically connected as an electronic control connection end and a motor connection end, respectively. Multiple first connection ends 211 are exposed to facilitate electrical connection between the vehicle's electronic control system and motor via the connection assembly 2. This arrangement also allows the electronic control system and motor to be separated by the electrical protection device 100, reducing oil contamination of the electronic control system on the motor side and ensuring the cleanliness and stable operation of the electronic control system.

[0043] Multiple connectors 21 can be partially encapsulated within the terminal block 1 using injection molding. This encapsulation process protects the connectors 21, improving their durability and insulation performance to ensure safe current transmission and reducing assembly steps. Furthermore, by encapsulating portions of the connectors 21 within the terminal block 1, they can be integrated, reducing the size and space occupied by the electrical protection device 100. This allows for easier placement of other vehicle components, and the integrated design saves on component costs, achieving a lightweight design.

[0044] In the above embodiments, by encapsulating a portion of the structure of multiple connecting bars 21 within the terminal block 1, multiple connecting bars 21 can be integrated into the terminal block 1, so that the components of the electrical protection device 100 are arranged compactly, thereby reducing the volume of the electrical protection device 100 and the space occupied by the electrical protection device 100. This is beneficial to improving the integration level of the electrical protection device 100, reducing costs, and facilitating the arrangement of other vehicle components.

[0045] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the terminal block 1 defines a plurality of receiving slots 11, and the plurality of receiving slots 11 correspond one-to-one with a plurality of first connecting ends 211, with at least a portion of the first connecting ends 211 being received in the corresponding receiving slots 11.

[0046] The terminal block 1 can define multiple receiving slots 11, the number of which is the same as the number of first connecting ends 211 and corresponds one-to-one. At least a portion of each first connecting end 211 is encased in a corresponding receiving slot 11. The receiving slots 11 can protect the first connecting ends 211 to improve their durability and ensure the safety of current transmission. As some embodiments of this application, the receiving slots 11 have openings, and the end face of the first connecting end 211 used for electrical connection is exposed through the openings. This arrangement facilitates the electrical connection of the first connecting end 211 with the corresponding component through the end face, thereby reducing the difficulty of connecting the connecting strip 21 to the corresponding component and improving the ease of use of the connecting strip 21.

[0047] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the first connecting end 211 has a first crimping hole 2111.

[0048] Each of the first connecting ends 211 is provided with a first crimping hole 2111, the axial direction of which can be aligned with the first crimping hole 2111. Figure 1 and Figure 2 The third direction shown is the same, and it is perpendicular to both the first and second directions. When the terminals of the electrical control system and motor abut against the corresponding electrical control connection terminals and motor connection terminals, crimping bolts can be used to crimp them together. This crimping connection method eliminates the need for heating, saving operation time. Furthermore, the crimping connection is reliable, not easily broken, and has good electrical transmission performance, contributing to stable and reliable power transmission.

[0049] In some embodiments of this utility model, such as Figures 1-4 As shown, the electrical protection device 100 also includes a fuse 3, which is located on the terminal block 1 and electrically connected to the connection group 2.

[0050] The fuse 3 can be connected to the terminal block 1 by snap-fit, bolt, etc. The fuse 3 is conductive and can be electrically connected to the connecting busbar 2. Two corresponding first connection terminals 211 of some connecting busbars 21 can be electrically connected via the fuse 3. The fuse 3 can be constructed as an integrated active and passive intelligent fuse component. The fuse 3 can melt when the current is abnormal. Specifically, when the current in the circuit is abnormal, the fuse 3 can automatically melt under high current conditions, or it can actively melt when it receives a control signal. For example, as some embodiments of this utility model, the fuse 3 has an explosive charge. When the current in the circuit is abnormal, the explosive charge can be detonated, and the fuse 3 breaks the circuit under the action of the explosive charge, thereby disconnecting the electrical protection device 100.

[0051] The fuse 3 can protect the electrical protection device 100 and the electrical control system and motor connected to the connecting busbar 2. The electrical protection device 100 proposed in this utility model can achieve a high degree of integration of multiple functions on a single component, so as to meet the market demand for diversified and integrated modular functions, provide a better design solution for the integrated design of electrical protection devices 100 for new energy vehicles, and help enhance market competitiveness.

[0052] In some embodiments of this utility model, such as Figures 1-4 As shown, the fuse 3 includes a housing 31 and a first mating part 32. The first mating part 32 is disposed on the housing 31. The terminal block 1 has a second mating part. The second mating part and the first mating part 32 are fitted together to assemble the fuse 3 on the terminal block 1.

[0053] The second mating part can be assembled with the first mating part 32. As some embodiments of this utility model, one of the first mating part 32 and the second mating part can be constructed as a slot, and the other of the first mating part 32 and the second mating part can be constructed as a hook. The hook and the slot can be snapped together so that the second mating part can be assembled with the first mating part 32 so that the fuse 3 is fixed to the terminal block 1.

[0054] In some other embodiments of this utility model, one of the first mating part 32 and the second mating part can be constructed as a bolt, and the other of the first mating part 32 and the second mating part can be constructed as a mounting hole. The bolt and the mounting hole can be fitted together (e.g., fitted together with a nut) to fix the fuse 3 to the terminal block 1. Compared with the design where the fuse 3 needs to be fixed to the terminal block 1 by other components (e.g., a fixed base), the fuse 3 of this utility model embodiment has a smaller volume and can be integrated into the terminal block 1, resulting in high space utilization and high integration.

[0055] In some embodiments of this utility model, the housing 31 and the first mating part 32 can be separate parts, and the housing 31 and the first mating part 32 can be welded together, bolted together, etc. In other embodiments of this utility model, the housing 31 and the first mating part 32 can be integrally formed. The integrally formed part has better structural strength and can improve the connection stability of the housing 31 and the first mating part 32.

[0056] In some embodiments of this utility model, such as Figures 1-4 As shown, the first mating part 32 is constructed as a first mating post, and the second mating part is constructed as a first mating hole. The first mating post passes through the first mating hole and is mated with the first mating hole.

[0057] The first mating part 32 can be constructed as a first mating post, which can extend along a third direction. The second mating part can be constructed as a first mating hole, which can be parallel to the third direction. The first mating post can be fitted with the first mating hole to assemble the fuse 3 so that it can be fixed to the terminal block 1. This design structure is simple, which can reduce the manufacturing and assembly difficulty, and can make the fuse 3 stably installed on the terminal block 1, reducing the risk of the fuse 3 falling off.

[0058] As some embodiments of this utility model, the first mating post may have an external thread, the first mating hole may have an internal thread, the first mating post may be inserted into the first mating hole, and the first mating post may be threadedly mated with the first mating hole so that the fuse 3 can be fixed to the terminal block 1.

[0059] In some other embodiments of this utility model, the first mating post can be inserted into the first mating hole, and a fixing adhesive can be applied to the first mating hole so that the first mating post and the first mating hole are bonded together so that the fuse 3 can be fixed to the terminal block 1.

[0060] As some other embodiments of this utility model, such as Figure 3 and Figure 4 As shown, the first mating post may have external threads and may be inserted into the first mating hole. The terminal block 1 may include a fixing nut 14, which may be threadedly engaged with the first mating post so that the fuse 3 may be fixed to the terminal block 1.

[0061] As some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the terminal block 1 includes a protective sleeve 13, which is sleeved on the outside of a portion of the fixing nut 14 to protect the fixing nut 14 and the first mating post, and can also reduce the risk of interference between the first mating post, the fixing nut 14 and other parts.

[0062] As some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, there are multiple protective sleeves 13. The number of protective sleeves 13 can be the same as the number of first mating parts 32 and correspond one-to-one. By setting multiple protective sleeves 13, the fixing nut 14 and the first mating post can be protected, and the risk of interference between the first mating post, the fixing nut 14 and other parts can be reduced.

[0063] In some embodiments of this utility model, such as Figures 1-4 As shown, there are multiple first mating parts 32, which are distributed at the edge of the cross-section of the housing 31.

[0064] The first mating part 32 can be multiple, and the number of first mating parts 32 can be two, three, four, etc. These multiple first mating parts 32 can be distributed along the edges of the cross-section of the housing 31. For example, if the cross-section of the housing 31 is rectangular, the number of first mating parts 32 can be four, and the four first mating parts 32 can be distributed at the four corners of the rectangle. This arrangement enhances the connection stability between the fuse 3 and the terminal block 1. Furthermore, this arrangement disperses the multiple first mating parts 32 as much as possible, avoiding stress concentration, and uniformly enhances the structural strength of the housing 31, thereby improving the structural stability of the fuse 3.

[0065] In some embodiments of this utility model, such as Figure 4 As shown, the fuse 3 also includes a support portion 33, which passes through the housing 31 and is connected to the first mating portion 32.

[0066] The support part 33 can be constructed as a rod-shaped member. The support part 33 can pass through the housing 31 and be connected to the first mating part 32. The support part 33 can be threaded or snapped to the first mating part 32. By setting the support part 33, the strength and stability of the first mating part 32 can be enhanced, and the connection strength between the first mating part 32 and the housing 31 can be enhanced. This can reduce the risk of the first mating part 32 breaking and make the overall structure of the fuse 3 more robust and durable.

[0067] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the first mating part 32 is located at one end of the housing 31 near the terminal block 1, one end of the support part 33 is connected to the first mating part 32, and the other end of the support part 33 is located on the outside of the housing 31 and abuts against the housing 31.

[0068] The first mating part 32 can be located at one end of the housing 31 near the terminal block 1. The first mating part 32 can be assembled with the second mating part to fix the fuse 3 to the terminal block 1. One end of the support part 33 can be threaded or snap-fitted to the first mating part 32, and the other end of the support part 33 is located outside the housing 31 and abuts against the housing 31. For example, the support part 33 may include a rod and a head. The head is connected to one end of the rod. The rod can pass through the housing 31. The end of the rod away from the head can be connected to the first mating part 32. The head is located outside the housing 31 and can abut against the housing 31.

[0069] This arrangement allows for a reasonable placement of the first mating part 32 and a shorter length, which not only helps to reduce the size of the fuse 3 but also reduces the risk of breakage of the first mating part 32. Furthermore, this arrangement allows for a reasonable placement of the support part 33, which can be inserted through the entire housing 31, thereby significantly enhancing the structural strength of the housing 31.

[0070] In some embodiments of this utility model, such as Figure 4 As shown, the first mating part 32 has a connecting hole 321 with an internal thread, and the support part 33 has an external thread that mates with the internal thread.

[0071] The first mating part 32 may be provided with a connecting hole 321. The connecting hole 321 has an internal thread and is open towards the support part 33. A portion of the support part 33 can extend into the connecting hole 321. The portion of the support part 33 extending into the connecting hole 321 has an external thread. The internal thread of the connecting hole 321 can be threadedly engaged with the external thread of the support part 33, so that the first mating part 32 and the support part 33 are threadedly connected. This arrangement can make the first mating part 32 and the support part 33 fit tightly, which can significantly enhance the strength and stability of the first mating part 32, significantly reduce the risk of the first mating part 32 breaking, and reduce the difficulty of connecting the first mating part 32 and the support part 33, which is conducive to improving assembly efficiency.

[0072] As some embodiments of this utility model, such as Figure 4 As shown, there can be multiple support parts 33 and multiple first mating parts 32. The number of support parts 33 and the number of first mating parts 32 are the same and correspondingly arranged. Each first mating part 32 has a connecting hole 321. Multiple first mating parts 32 are distributed at the edge of the cross-section of the housing 31 so that multiple corresponding support parts 33 are distributed at the edge of the cross-section of the housing 31. This can uniformly enhance the structural strength of the housing 31 and significantly improve the structural stability of the fuse 3.

[0073] In some embodiments of this utility model, such as Figures 1-4 As shown, the fuse 3 also includes: a plurality of second connection terminals 34 and a plurality of connectors 35, the plurality of connectors 35 corresponding one-to-one with the plurality of second connection terminals 34, the second connection terminal 34 having a second crimping hole 341, the connector 35 passing through the corresponding second crimping hole 341 and being electrically connected to the portion of the connection bar 21 embedded in the terminal block 1.

[0074] In this circuit, the number of connectors 35 and the number of second connection ends 34 are the same and correspond one-to-one. The second connection ends 34 can be constructed as plate-like structures and can have second crimping holes 341. The connectors 35 can be constructed as bolts, screws, etc. The connectors 35 can pass through the corresponding second crimping holes 341 and be electrically connected to the part of the connecting strip 21 embedded in the terminal block 1, so that the corresponding connecting strip 21 is connected through the fuse 3. In other words, this allows the fuse 3 to be connected to the circuit. By setting the connectors 35 and the second connection ends 34, the design of the complex external wires can be simplified, the size of the electrical protection device 100 can be further reduced, and the connectors 35 can play a fixing role, so that the fuse 3 is more stably and reliably fixed to the terminal block 1, reducing the risk of the fuse 3 falling off.

[0075] In some embodiments of this utility model, such as Figure 1 and Figure 2As shown, the terminal block 1 has multiple clearance holes 12, and multiple connectors 35 correspond one-to-one with the multiple clearance holes 12. The connectors 35 pass through the corresponding clearance holes 12.

[0076] The terminal block 1 may have multiple clearance holes 12. The cross-section of the clearance holes 12 may be circular, polygonal, etc. Multiple connectors 35 correspond one-to-one with the multiple clearance holes 12. The connectors 35 pass through the corresponding clearance holes 12. The clearance holes 12 can avoid the connectors 35 passing through the terminal block 1. This structural design is reasonable and can facilitate the connection of the connectors 35 through the corresponding second crimping holes 341 and make the connectors 35 electrically connected to the part of the connecting strip 21 embedded in the terminal block 1, which can reduce the assembly difficulty.

[0077] In some embodiments of this utility model, such as Figures 1-4 As shown, the fuse 3 also includes a connection port 36, which is adapted to be electrically connected to the control circuit board. The fuse 3 is used to cut off the control circuit of the electrical protection device 100 according to the control signal of the control circuit board.

[0078] The connection port 36 can be electrically connected to the control circuit board, which can be electrically connected to the Hall sensor. The Hall sensor can collect the current in the circuit and send a signal to the control circuit board. The fuse 3 can receive the control signal from the control circuit board and cut off the control circuit of the electrical protection device 100, so as to achieve the effect of disconnecting the electrical protection device 100 and protecting the electrical protection device 100.

[0079] As some embodiments of this utility model, the fuse 3 contains explosives. When the current in the circuit is abnormal, the Hall sensor can send a signal to the control circuit board. The fuse 3 can receive the control signal from the control circuit board and detonate the explosives to cut off the control circuit of the electrical protection device 100, so that the fuse 3 has an active melting function. This can significantly improve the safety of the electrical protection device 100, reduce the risk of safety accidents such as explosions and fires, and reduce the risk of damage to components such as motors due to excessive current.

[0080] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, there are two sets of connecting groups 2 along the first direction, with the two sets of connecting groups 2 spaced apart. There are two fuses 3, which are electrically connected to the two connecting groups 2 respectively.

[0081] The connection group 2 can be two groups, which are spaced apart along the first direction. There are two fuses 3, with one corresponding fuse 3 for each connection group 2. The two fuses 3 are electrically connected to the two connection groups 2 respectively. The two fuses 3 can work independently to control whether the two corresponding connection groups 2 are disconnected. By integrating the two connection groups 2 into one, the integration level of the electrical protection device 100 can be improved.

[0082] As some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the electrical protection device 100 has two sets of connection groups 2, and the terminal block 1 can be divided into two parts arranged along a first direction. These two parts can be constructed as a left driving force domain and a right driving force domain. Both the left driving force domain and the right driving force domain can be used to electrically connect the electrical control system and the motor. Specifically, the left driving force domain can be used to electrically connect the electrical control system and the first motor, and the right driving force domain can be used to electrically connect the electrical control system and the second motor. The left driving force domain and the right driving force domain are arranged adjacent to each other, which can further improve the integration level of the electrical protection device 100.

[0083] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the electrical protection device 100 also includes a seal 4, which is disposed on the terminal block 1. Along the second direction, the electrical control connection end is located on one side of the seal 4, and the motor connection end is located on the other side of the seal 4.

[0084] The sealing element 4 can be located on the terminal block 1 along the second direction. The electrical control connection end is located on one side of the sealing element 4, and the motor connection end is located on the other side of the sealing element 4. The sealing element 4 can separate the electrical control connection end and the motor connection end along the second direction, thereby separating the electrical control system and the motor along the second direction to reduce the risk of oil contamination of the electrical control system on the motor side, and to ensure the clean and stable operation of the electrical control system.

[0085] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the connection group 2 includes three connection groups 21 to form a three-phase electrical connection group.

[0086] The connecting busbar group 2 may include three connecting busbars 21, which form a three-phase power busbar. The three-phase power busbar can carry higher power to achieve high-efficiency power supply. The three-phase power busbar can ensure stable and reliable power transmission, reduce energy loss, and improve the reliability and stability of the electrical protection device 100.

[0087] As some embodiments of this utility model, the connecting busbar 21 can be constructed as a copper busbar, that is, the connecting busbar 21 can be made of metallic copper. Copper has advantages such as good conductivity, good corrosion resistance, high plasticity, and high machinability, which can improve the practicality, reliability and stability of the connecting busbar group 2.

[0088] The power domain control assembly according to an embodiment of the present invention includes the electrical protection device 100 described in the above embodiment. By encapsulating a portion of the structure of multiple connecting bars 21 within the terminal block 1, the multiple connecting bars 21 can be integrated within the terminal block 1, making the components of the electrical protection device 100 compact, thereby reducing the volume of the electrical protection device 100 and the space occupied by the electrical protection device 100. This is beneficial for improving the integration level of the electrical protection device 100, reducing costs, and facilitating the arrangement of other vehicle components.

[0089] According to the power system of this utility model embodiment, the power system includes the electrical protection device 100 of the above embodiment or the power domain control assembly of the above embodiment. By encapsulating a portion of the structure of the plurality of connecting bars 21 within the terminal block 1, the plurality of connecting bars 21 can be integrated within the terminal block 1, so that the components of the electrical protection device 100 are arranged compactly, thereby reducing the volume of the electrical protection device 100, reducing the space occupied by the electrical protection device 100, which is beneficial to improving the integration level of the electrical protection device 100, reducing costs, and facilitating the arrangement of other vehicle components.

[0090] The vehicle according to an embodiment of the present invention includes the power system described in the above embodiment. By encapsulating a portion of the structure of the plurality of connecting bars 21 within the terminal block 1, the plurality of connecting bars 21 can be integrated within the terminal block 1, thereby making the components of the electrical protection device 100 compact, reducing the volume of the electrical protection device 100, reducing the space occupied by the electrical protection device 100, which is beneficial to improving the integration level of the electrical protection device 100, reducing costs, and facilitating the arrangement of other vehicle components.

[0091] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0092] In the description of this utility model, "first feature" and "second feature" may include one or more of the features.

[0093] In the description of this utility model, "multiple" means two or more.

[0094] In the description of this utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0095] In the description of this utility model, the terms "above", "over" and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0096] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0097] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An electrical protection device for a power domain control assembly, characterized in that, The electrical protection device includes: A terminal block and a connecting strip assembly, wherein the connecting strip assembly includes multiple connecting strips, a portion of which is embedded in the terminal block, and both opposite ends of the connecting strip are first connecting ends, and the two opposite first connecting ends of the connecting strip are respectively configured as an electrical control connecting end and a motor connecting end.

2. The electrical protection device according to claim 1, characterized in that, The terminal block defines a receiving groove, which corresponds one-to-one with the first connection end, and at least a portion of the first connection end is received in the corresponding receiving groove.

3. The electrical protection device according to claim 1, characterized in that, The first connecting end has a first crimping hole.

4. The electrical protection device according to claim 1, characterized in that, Also includes: A fuse, which is located at the terminal block and electrically connected to the connection group.

5. The electrical protection device according to claim 4, characterized in that, The fuse includes a housing and a first mating part, the first mating part being disposed in the housing, and the terminal block having a second mating part, the second mating part being fitted with the first mating part to assemble the fuse in the terminal block.

6. The electrical protection device according to claim 5, characterized in that, The first mating part is constructed as a first mating post, and the second mating part is constructed as a first mating hole. The first mating post passes through the first mating hole and is mated with the first mating hole.

7. The electrical protection device according to claim 5, characterized in that, There are multiple first mating parts, and the multiple first mating parts are distributed at the edge of the cross-section of the shell.

8. The electrical protection device according to claim 5, characterized in that, The fuse further includes a support portion, which passes through the housing and is connected to the first mating portion.

9. The electrical protection device according to claim 8, characterized in that, The first mating part is located at one end of the housing near the terminal block, one end of the support part is connected to the first mating part, and the other end of the support part is located on the outside of the housing and abuts against the housing.

10. The electrical protection device according to claim 8, characterized in that, The first mating part has a connecting hole with an internal thread, and the supporting part has an external thread that mates with the internal thread.

11. The electrical protection device according to claim 4, characterized in that, The fuse further includes: a plurality of second connection terminals and a plurality of connectors, wherein the plurality of connectors correspond one-to-one with the plurality of second connection terminals, the second connection terminals having second crimping holes, and the connectors passing through the corresponding second crimping holes and electrically connected to the portion of the connection bar embedded in the terminal block.

12. The electrical protection device according to claim 11, characterized in that, The terminal block has multiple clearance holes, and multiple connectors correspond one-to-one with the multiple clearance holes. The connectors are inserted through the corresponding clearance holes.

13. The electrical protection device according to claim 4, characterized in that, The fuse further includes a connection port adapted to be electrically connected to a control circuit board, the fuse being used to cut off the control circuit of the electrical protection device according to a control signal from the control circuit board.

14. The electrical protection device according to any one of claims 4-13, characterized in that, The connection group consists of two groups, which are spaced apart along the first direction. There are two fuses, which are electrically connected to the two connection groups respectively.

15. The electrical protection device according to any one of claims 1-13, characterized in that, Also includes: A sealing element is disposed on the terminal block. Along the second direction, the electrical control connection end is located on one side of the sealing element, and the motor connection end is located on the other side of the sealing element.

16. The electrical protection device according to any one of claims 1-13, characterized in that, The connection busbar group includes three connection busbars to form a three-phase electrical connection busbar.

17. A power domain control assembly, characterized in that, The power domain control assembly includes an electrical protection device according to any one of claims 1-16.

18. A power system, characterized in that, The power system includes the electrical protection device according to any one of claims 1-16 or the power domain control assembly according to claim 17.

19. A vehicle, characterized in that, Includes the power system according to claim 18.

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