Fuse box assembly and vehicle

Abstract

The utility model provides a fuse box assembly and a vehicle. The fuse box assembly comprises a box body, a first confluence protection assembly, a second confluence protection assembly and an isolation switch. Wherein the box body is flatly arranged at the top of the storage battery and is provided with an avoiding hole into which a positive electrode plug of the storage battery extends; the first confluence protection assembly is arranged in the box body, is connected and conducted with the positive pole bolt, and is provided with a first power connection end which extends out of the box body and is bent downwards, and a starting circuit power connection end; the second confluence protection assembly is arranged in the box body, and is provided with a second power connection end which extends out of the box body and is bent downwards, and is also provided with a plurality of functional load power taking ends; the isolating switch is fixed to the first power connection end in a lap joint mode through a positive electrode pin, fixed to the second power connection end in a lap joint mode through a negative electrode pin and suspended on the side of the storage battery, and the isolating switch is used for being switched from a conduction state to a cut-off state when the engine is started. According to the fuse box assembly provided by the utility model, the overall structure compactness of the fuse box assembly and the storage battery can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile electrical parts, and in particular relates to a fuse box assembly and a vehicle. Background Art

[0002] At present, some hybrid models have a 12V driving start function. For these models, it is necessary to add an isolation switch to the positive electrode of the battery. Under normal driving conditions, the isolation switch is in the on state, and the battery normally supplies power to various functional loads of the vehicle, such as the cabin fuse box, instrument fuse box, and luggage fuse box; when the engine needs to be started, the isolation switch is switched to the off state, so that the battery only supplies power to the starter, thereby ensuring that the engine can start normally.

[0003] The existing design scheme is to integrate the isolating switch in the battery positive pole fuse box, so the volume of the fuse box needs to be increased. As a result, due to the limited height space in the cabin, the battery fuse box can only be connected to the battery in a side-mounted manner, which will affect the installation layout of the battery peripheral parts to a certain extent. Especially under the current trend of diversified vehicle configuration functions, the number of fuses in the fuse box continues to increase, resulting in a further increase in the size of the fuse box. Therefore, it is urgent to develop a compact layout plan for the battery positive pole fuse box. Utility Model Content

[0004] The embodiment of the utility model provides a fuse box assembly, which aims to optimize the installation layout of the fuse box assembly on the battery and improve the overall structural compactness of the fuse box assembly and the battery.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: in the first aspect, a fuse box assembly is provided, comprising:

[0006] The box body is flatly mounted on the top of the battery and has a relief hole for the positive electrode plug of the battery to extend into;

[0007] The first confluence protection component is arranged in the box body and connected to the positive electrode plug, and has a first power connection end extending out of the box body and bending downward, and also has a starting circuit power connection end;

[0008] The second confluence protection assembly is disposed in the box body, has a second power connection end extending out of the box body and bending downward, and also has a plurality of functional load power terminals;

[0009] The isolating switch is suspended on the side of the battery by lap-fixing the positive pin with the first power connection terminal and lap-fixing the negative pin with the second power connection terminal. The isolating switch is used to switch from the on state to the off state when starting the engine.

[0010] In combination with the first aspect, in a possible implementation manner, the first confluence protection assembly includes:

[0011] The first bus bar is fixed against the bottom surface of the box body near the avoidance hole, the middle part is connected to the positive electrode plug, one end forms the first power connection end, and the other end forms the first overlap surface;

[0012] The starting protection fuse is arranged in the box body, one end of which is overlapped and connected with the first overlap surface, and the other end is located at the bottom edge of the box body and forms the starting circuit power connection end.

[0013] In some embodiments, the first bus protection assembly also includes a power extraction clamp, which is sleeved and fixed on the positive electrode plug, and the side wall of the power extraction clamp has a conductive arm extending to the bottom of the first bus, and the middle part of the first bus is overlapped and fixed on the conductive arm.

[0014] Exemplarily, the first confluence protection assembly further includes:

[0015] The second bus bar is pressed against the hole wall of the avoidance hole, one end of which extends out of the avoidance hole and is overlapped and fixed to the first overlap surface, and the other end of which extends out of the avoidance hole and is pressed against and fixed to the bottom edge of the box body to form a second overlap surface;

[0016] The battery sensor is arranged on the box body and is overlapped and connected with the second overlapped surface.

[0017] For example, the second confluence protection assembly includes:

[0018] The third bus is fixed to the bottom surface of the box body and is located on the side of the first bus away from the avoidance hole. One end of the third bus forms the second power connection end, and the other end is bent and extended to the side of the first overlap surface to form a third overlap surface.

[0019] The fourth bus bar is fixed to the bottom surface of the box body and overlaps and conducts with the third overlap surface. The fourth bus bar is provided with a DC power supply terminal and a plurality of potential taking terminals.

[0020] A plurality of functional load protection fuses are isolated from each other and distributed on the bottom surface of the box body. One end of each functional load protection fuse is respectively connected to one of the potential taking devices, and the other end forms a functional load power taking terminal.

[0021] In a possible implementation, a plurality of claws extending upward are provided on the bottom surface of the box body, the claws are spaced apart along two side boundaries of the third bus, and the claws are all engaged with the edge of the third bus.

[0022] In some embodiments, the second bus protection assembly also includes a DC conversion protection fuse, which is located between the starting protection fuse and the functional load protection fuse. One end of the DC conversion protection fuse is overlapped and connected with the third overlap surface, and the other end forms a DC power supply end.

[0023] Exemplarily, the box body has a mounting cavity for the top of the battery to be embedded, and two opposite side walls of the box body are provided with downwardly extending buckles, which are used to snap into the convex edges formed on the side walls of the battery.

[0024] For example, a plurality of upwardly protruding support ribs are spaced apart on the bottom surface of the box body, and the first confluence protection assembly and the second confluence protection assembly both rest against the support ribs.

[0025] The beneficial effect of the fuse box assembly provided by the utility model is that: compared with the prior art, in the fuse box assembly of the utility model, the first busbar protection component is connected to the positive electrode of the battery so that the power connection end of the starting circuit is always kept charged, and the second busbar protection component is connected to the first busbar protection component through an isolating switch. When the isolating switch is in the on state, the battery can supply normal power to each functional load unit of the vehicle through each functional load power supply end. When the engine needs to be started, the isolating switch is switched to the off state to cut off the first busbar protection component and the second busbar protection component, so that the battery can be charged through the starting power. The circuit-connecting terminal supplies power to the starter separately, thereby ensuring sufficient power supply to the starter and improving the stability of the engine's driving starting function; by installing the box body flat on the top of the battery, and using the first power connecting terminal and the second power connecting terminal that extend out of the box body and bend downward to connect the positive pin and the negative pin of the disconnector correspondingly, not only can the disconnector be connected to the first bus protection component and the second bus protection component, but the disconnector can also be suspended on the side of the battery, thereby realizing the rational use of the space above and on the side of the battery, improving the compactness of the overall structure, and facilitating the installation layout of the battery peripheral parts in the cabin.

[0026] In a second aspect, an embodiment of the utility model further provides a vehicle, comprising the above-mentioned fuse box assembly.

[0027] The beneficial effect of the vehicle provided by the embodiment of the utility model is that: compared with the prior art, the vehicle of the utility model adopts the above-mentioned fuse box assembly, by installing the box body flat on the top of the battery, and using the first power connection end and the second power connection end that extend out of the box body and bend downward to correspond to the positive pin and the negative pin of the isolating switch, not only can the isolating switch be connected to the first bus protection component and the second bus protection component, but the isolating switch can also be suspended on the side of the battery, thereby realizing the rational use of the space above and on the side of the battery, improving the compactness of the overall structure, and facilitating the installation layout of the battery peripheral parts in the cabin. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A three-dimensional structural schematic diagram of a fuse box assembly provided in an embodiment of the utility model;

[0029] Figure 2A schematic diagram of the exploded structure of the fuse box assembly provided in an embodiment of the utility model;

[0030] Figure 3 A schematic diagram of the top view of the fuse box assembly provided in an embodiment of the utility model;

[0031] Figure 4 A schematic diagram of the split structure of the first confluence protection assembly and the second confluence protection assembly used in the embodiment of the utility model;

[0032] Figure 5 This is a schematic diagram of the three-dimensional structure of the box body used in the embodiment of the utility model.

[0033] In the figure: 10, box body; 11, avoidance hole; 12, claw; 13, installation cavity; 14, buckle; 15, support rib; 20, first bus protection assembly; 201, first power terminal; 202, starting circuit power terminal; 21, first bus bar; 211, first lap joint; 22, starting protection fuse; 23, power hoop; 231, conductive arm; 24, second bus bar; 241, second lap joint; 25, battery sensor; 30. Second bus protection assembly; 301. Functional load power supply terminal; 302. Second power connection terminal; 31. Third bus; 311. Third lap joint; 32. Fourth bus; 321. DC power supply terminal; 322. Potential taking; 33. Functional load protection fuse; 34. DC conversion protection fuse; 40. Isolating switch; 41. Positive pin; 42. Negative pin; 50. Battery; 51. Positive electric plug; 52. Convex edge. DETAILED DESCRIPTION

[0034] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0035] It should be noted that when an element is referred to as being "located on" or "connected to" another element, it may be directly on the other element or indirectly on the other element. It should be understood that the positional relationship indicated by the terms "upper", "lower", "front", "rear", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. The terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present application, the meaning of "multiple" and "several" is two or more, unless otherwise clearly and specifically defined.

[0036] Please also read Figures 1 to 5 Now, the fuse box assembly provided by the utility model is described. The fuse box assembly includes a box body 10, a first convergence protection component 20, a second convergence protection component 30, and an isolating switch 40; wherein the box body 10 is flatly mounted on the top of the battery 50, and has an avoidance hole 11 for the positive electrode plug 51 of the battery 50 to extend into; the first convergence protection component 20 is arranged in the box body 10 and is connected to the positive electrode plug 51 for conduction, has a first power connection end 201 extending out of the box body 10 and bending downward, and also has a starting circuit power connection end 202; the second convergence protection component 30 is arranged in the box body 10, has a second power connection end 302 extending out of the box body 10 and bending downward, and also has a plurality of functional load power terminals 301; the isolating switch 40 is suspended on the side of the battery 50 by lap-connecting and fixing the positive electrode pin 41 with the first power connection end 201 and lap-connecting and fixing the negative electrode pin 42 with the second power connection end 302, and the isolating switch 40 is used to switch from the on state to the off state when starting the engine.

[0037] It should be noted that, in this embodiment, the box body 10 is a flat structure, which is flatly connected to the top surface of the battery 50 to avoid occupying too much height space. At the same time, an avoidance hole 11 is opened on the bottom surface of the box body 10 to allow the positive electrode plug 51 to extend into the box body 10, thereby enabling the first bus protection assembly 20 to be close to the positive electrode plug 51, shortening the power supply distance of the first bus protection assembly 20, thereby reducing the size of the first bus protection assembly 20 and improving the compactness of the structure; it should be understood that the above-mentioned first bus protection assembly 20 and the second bus protection assembly 30 are both a combination structure of a bus copper bus and a fuse, which uses the bus copper bus to allocate the power connection position, and uses the fuse to provide overload protection for each circuit.

[0038] It should be understood that the main body of the isolating switch 40 is a flat structure and extends two conductive plates as the positive pin 41 and the negative pin 42 respectively. These two pins are not only used for connecting electricity but also have a mechanical connection function. The first power connection end 201 and the second power connection end 302 that extend out of the box body 10 and bend downward form a vertical overlap surface to overlap and fix the two pins, thereby making the isolating switch 40 appear to be in a sideways suspended state, thereby avoiding excessive occupation of the space on the side of the battery 50. That is to say, the isolating switch 40 and the box body 10 form an inverted L-shaped buckle mounted on the battery 50. Compared with the existing structure in which the isolating switch 40 is integrated inside the box body 10, by allocating and utilizing the space above and on the side of the battery 50, interference with the normal installation layout of surrounding parts can be avoided.

[0039] In this embodiment, the starting circuit terminal is used to connect the starter, and each functional load power terminal 301 is used to correspond to each functional load unit connected to the vehicle. Since each functional load unit is also equipped with an independent fuse box, each functional load power terminal 301 can specifically be a fuse box connected to each functional load unit, such as a cabin fuse box, an instrument fuse box, a trunk fuse box, etc.

[0040] The working principle of the fuse box assembly provided in this embodiment is as follows: the first busbar protection component 20 is connected to the positive electrode plug 51 of the battery 50 so that the starting circuit power terminal 202 is always energized, and the second busbar protection component 30 is connected to the first busbar protection component 20 through the isolating switch 40. When the isolating switch 40 is in the on state, the battery 50 can normally supply power to each functional load unit of the vehicle through each functional load power supply terminal 301. When it is necessary to start the engine, the isolating switch 40 is switched to the off state to cut off the first busbar protection component 20 and the second busbar protection component 30, so that the battery 50 can supply power to the starter alone through the starting circuit power terminal 202, thereby ensuring sufficient power supply to the starter and improving the stability of the engine driving starting function.

[0041] Compared with the prior art, the fuse box assembly provided in the present embodiment can realize the conductive connection between the isolating switch 40 and the first and second bus protection components 20 and 30, and can also suspend the isolating switch 40 on the side of the battery 50, thereby realizing the rational use of the space above and on the side of the battery 50, improving the compactness of the overall structure, and facilitating the installation layout of the peripheral components of the battery 50 in the engine room.

[0042] In some embodiments, see Figures 1 to 4The first bus protection assembly 20 includes a first bus bar 21 and a drive protection fuse; wherein, the first bus bar 21 is fixed against the bottom surface of the box body 10 near the avoidance hole 11, the middle part is connected to the positive electrode plug 51, one end forms a first power connection terminal 201, and the other end forms a first lap joint 211; the starting protection fuse 22 is arranged in the box body 10, one end is overlapped and connected with the first lap joint 211, and the other end is located at the bottom edge of the box body 10 and forms a starting circuit power connection terminal 202.

[0043] The first bus 21 is fixed against the bottom surface of the box body 10 and close to the positive electrode plug 51, which is conducive to shortening the distance between the first bus 21 and the positive electrode plug 51, thereby facilitating the connection between the first bus 21 and the positive electrode plug 51; one end of the first bus 21 is bent downward to form an L-shaped first power connection end 201, so as to facilitate the overlap and fixation of the positive electrode pin 41; the drive protection fuse can be a plug-in MEGA fuse, one end of which is overlapped on the first overlap surface 211 and fixed by a connecting bolt, and the other end is used as the starting circuit power connection end 202 to supply power to the starter. By mounting the first bus 21 and the drive protection fuse on the bottom surface of the inner cavity of the box body 10, it helps to reduce the height of the box body 10, thereby avoiding excessive occupation of the space above the battery 50 and improving the compactness of the structure.

[0044] As a modified implementation of the first confluence protection assembly 20, please refer to Figure 2 and Figure 4 The first bus protection assembly 20 also includes a power-collecting hoop 23, which is sleeved and fixed on the positive electrode plug 51, and the side wall of the power-collecting hoop 23 has a conductive arm 231 extending to the bottom of the first bus 21, and the middle part of the first bus 21 is overlapped and fixed on the conductive arm 231.

[0045] The power collection hoop 23 can specifically be an open copper hoop connected by a connecting bolt to apply an annular clamping force. The power collection hoop 23 is clamped with the positive electrode plug 51 to ensure the conductivity reliability. On this basis, the conductive arm 231 formed on the side wall of the power collection hoop 23 is extended to the bottom of the first bus 21 and is in contact with the lower surface of the first bus 21 for conductivity, and the conductive arm 231 is fixed to the first bus 21 by the connecting bolt, thereby improving the electrical connection reliability.

[0046] As another variant implementation of the first confluence protection assembly 20, please refer to Figure 3 and Figure 4The first bus protection assembly 20 also includes a second bus bar 24 and a battery sensor 25; wherein, the second bus bar 24 is abutted against the hole wall of the avoidance hole 11, one end of the second bus bar 24 extends out of the avoidance hole 11 and is overlapped and fixed on the first overlap surface 211, and the other end extends out of the avoidance hole 11 and is abutted and fixed on the bottom edge of the box body 10 to form a second overlap surface 241; the battery sensor 25 is arranged in the box body 10 and is overlapped and connected with the second overlap surface 241.

[0047] The first bus 21 is close to the positive electrode plug 51 and is far away from the edge of the box body 10, making it inconvenient to connect an external circuit. Therefore, the second bus 24 is used to lead out the second overlapping surface 241 to the edge of the box body 10, and the second overlapping surface 241 is used to connect the battery sensor 25 (equivalent to the monitoring module of the battery 50, which can collect the voltage, internal resistance, surface temperature, bulging and other operating parameters of the battery 50 in real time and accurately) to monitor the operating status of the battery 50 in real time, so that abnormal problems of the battery 50 can be discovered and handled in time; here, the main part of the second bus 24 is abutted against the hole wall of the avoidance hole 11, and one end is overlapped with the first overlapping surface 211 and fastened by a connecting bolt, and the other end is overlapped with the power connection end of the battery sensor 25 and fastened by a connecting bolt, thereby avoiding reducing space occupancy and improving structural compactness.

[0048] For some possible implementations, see Figure 3 and Figure 4 The second bus protection assembly 30 includes a third bus 31, a fourth bus 32, and a plurality of functional load protection fuses 33; wherein the third bus 31 is fixed against the bottom surface of the box body 10 and is located on the side of the first bus 21 away from the avoidance hole 11, one end of the third bus 31 forms a second power connection end 302, and the other end is bent and extended to the side of the first overlap surface 211 to form a third overlap surface 311; the fourth bus 32 is fixed against the bottom surface of the box body 10 and overlaps and conducts with the third overlap surface 311, and a DC power supply end 321 and a plurality of potential taking 322 are provided on the fourth bus 32; each functional load protection fuse 33 is isolated from each other and distributed on the bottom surface of the box body 10, one end of each functional load protection fuse 33 is overlapped and conducted with one of the potential taking 322, and the other end forms a functional load power taking end 301.

[0049] Due to the existence of the avoidance hole 11, the available space near the positive electrode plug 51 inside the box body 10 is relatively small. Therefore, the fourth bus 32 is arranged in the bottom area of ​​the box body 10 located on the side of the positive electrode plug 51. The available space at this position is large, so it can be ensured that the fourth bus 32 has sufficient area to arrange the potential 322, and the negative electrode pin 42 and the fourth bus 32 are connected by arranging the third bus 31 on the side of the first bus 21, so that each potential 322 can be energized when the isolation switch 40 is in the on state; on this basis, the DC power supply terminal 321 arranged on the fourth bus 32 can be connected to the DC / DC converter. When the isolation switch 40 is switched to the off state when the engine is started, each potential 322 can be powered by the DC / DC converter, thereby avoiding power failure of each functional load unit of the vehicle and affecting the normal operation of the vehicle.

[0050] It should be noted that see Figure 3 The bottom surface of the box body 10 is provided with a plurality of claws 12 extending upward, and each claw 12 is distributed along the two side boundaries of the third bus 31 at intervals, and each claw 12 is engaged with the edge of the third bus 31 .

[0051] Since the space inside the box body 10 on the side of the avoidance hole 11 is limited, and only the two ends of the third bus 31 are used for power connection, and there is no power connection point in the middle, it is not suitable to set a connecting bolt simply for the purpose of fixing, and in order to bypass the avoidance hole 11, the extension distance required for the third bus 31 is relatively long, so claws 12 are provided on the box body 10 to clamp with the two side edges of the third bus 31, thereby ensuring the stable connection of the third bus 31, reducing space occupancy, and improving the compactness of the structure.

[0052] Alternatively, if Figure 3 and Figure 4 As shown, in this embodiment, the second bus protection assembly 30 further includes a DC conversion protection fuse 34, which is located between the starting protection fuse 22 and the functional load protection fuse 33, one end of the DC conversion protection fuse 34 overlaps and conducts with the third overlap surface 311, and the other end forms a DC power supply end 321. The DC conversion protection fuse 34 can provide overload protection for the DC / DC converter, and the DC conversion protection fuse 34 is preferably a plug-in fuse, and overlaps with the fourth overlap surface on the third overlap surface 311 and is fixed by a connecting bolt, thereby improving the compactness of the connection structure.

[0053] Please note that, see Figure 2 and Figure 5In this embodiment, the box body 10 has an installation cavity 13 for the top of the battery 50 to be embedded, and two opposite side walls of the box body 10 are provided with buckles 14 extending downward, and the buckles 14 are used to snap on the convex edge 52 formed on the side wall of the battery 50. It can be understood that both the upper and lower sides of the box body 10 are cavity structures, and the upper cavity is used to install and accommodate the first confluence protection assembly 20 and the second confluence protection assembly 30. The lower cavity structure, i.e., the installation cavity 13, is nested downward on the top of the battery 50, and the two buckles 14 are snapped with the convex edge 52 of the side wall of the battery 50 to achieve a reliable connection between the box body 10 and the battery 50, without the need to set up additional connectors, which can not only avoid the risk of loosening and falling off of the connector, but also improve the convenience of disassembly and assembly of the box body 10.

[0054] like Figure 3 As shown, in order to improve the structural strength of the box body 10 and the connection stability of the first convergence protection assembly 20 and the second convergence protection assembly 30, a plurality of upwardly protruding support ribs 15 are spaced apart on the bottom surface of the box body 10, and the first convergence protection assembly 20 and the second convergence protection assembly 30 are both against the support ribs 15. By providing the support ribs 15 to support the first convergence protection assembly 20 and the second convergence protection assembly 30, the phenomenon of connection instability caused by the first convergence protection assembly 20 and the second convergence protection assembly 30 not being able to completely fit with the bottom surface of the box body 10 can be avoided.

[0055] Based on the same inventive concept, Figures 1 to 5 It is understood that an embodiment of the present application also provides a vehicle, including the above-mentioned fuse box assembly.

[0056] Compared with the prior art, the vehicle provided in this embodiment adopts the above-mentioned fuse box assembly, by flatly mounting the box body 10 on the top of the battery 50, and using the first power connection terminal 201 and the second power connection terminal 302 extending out of the box body 10 and bending downward to correspond to the positive pin 41 and the negative pin 42 of the disconnector 40, not only can the disconnector 40 be connected to the first busbar protection assembly 20 and the second busbar protection assembly 30, but the disconnector 40 can also be suspended on the side of the battery 50, thereby realizing the rational use of the space above and on the side of the battery 50, improving the compactness of the overall structure, and facilitating the installation layout of the peripheral parts of the battery 50 in the cabin.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. The fuse box assembly is characterized in that: include: The box body (10) is flatly mounted on the top of the storage battery (50) and has an escape hole (11) for the positive electrode plug (51) of the storage battery (50) to extend into; A first confluence protection assembly (20) is disposed in the box body (10) and is connected to the positive electrode plug (51) for conduction, and has a first power connection end (201) extending out of the box body (10) and bent downward, and also has a starting circuit power connection end (202); A second convergence protection assembly (30) is disposed in the box body (10), has a second power connection end (302) extending out of the box body (10) and bent downward, and also has a plurality of functional load power supply ends (301); The isolating switch (40) is suspended on the side of the battery (50) by having a positive pin (41) overlapped and fixed with the first power connection terminal (201) and a negative pin (42) overlapped and fixed with the second power connection terminal (302). The isolating switch (40) is used to switch from an on state to an off state when the engine is started.

2. The fuse box assembly according to claim 1, characterized in that: The first confluence protection assembly (20) comprises: A first bus bar (21) is fixed against the bottom surface of the box body (10) near the avoidance hole (11), the middle portion of which is connected to the positive electrode plug (51), one end of which forms the first power connection end (201) and the other end of which forms a first overlap surface (211); A starting protection fuse (22) is arranged in the box body (10), one end of which overlaps with the first overlapping surface (211), and the other end of which is located at the bottom edge of the box body (10) and forms the starting circuit power connection terminal (202).

3. The fuse box assembly according to claim 2, characterized in that: The first busbar protection assembly (20) further comprises a power extraction hoop (23), the power extraction hoop (23) being sleeved and fixed on the positive electrode plug (51), and the side wall of the power extraction hoop (23) having a conductive arm (231) extending to below the first busbar (21), and the middle portion of the first busbar (21) being overlapped and fixed on the conductive arm (231).

4. The fuse box assembly according to claim 2, characterized in that: The first confluence protection assembly (20) further comprises: A second bus bar (24) is pressed against the hole wall of the avoidance hole (11), one end of which extends out of the avoidance hole (11) and is overlapped and fixed to the first overlap surface (211), and the other end of which extends out of the avoidance hole (11) and is pressed against and fixed to the bottom edge of the box body (10) to form a second overlap surface (241); A battery sensor (25) is arranged on the box body (10) and is overlapped and connected with the second overlap surface (241).

5. The fuse box assembly according to claim 2, characterized in that: The second confluence protection assembly (30) comprises: A third busbar (31) is fixed against the bottom surface of the box body (10) and is located on the side of the first busbar (21) away from the avoidance hole (11); one end of the third busbar (31) forms the second power connection end (302), and the other end is bent and extended to the side of the first overlapping surface (211) to form a third overlapping surface (311); A fourth busbar (32) is fixedly attached to the bottom surface of the box body (10) and overlaps the third overlap surface (311); a DC power supply terminal (321) and a plurality of potential points (322) are provided on the fourth busbar (32); A plurality of functional load protection fuses (33) are isolated from each other and distributed on the bottom surface of the box body (10); one end of each functional load protection fuse (33) is respectively connected to one of the potential taking terminals (322) for conduction, and the other end forms the functional load power taking terminal (301).

6. The fuse box assembly according to claim 5, characterized in that: The bottom surface of the box body (10) is provided with a plurality of claws (12) extending upwards, each of the claws (12) is distributed at intervals along the two side boundaries of the third bus (31), and each of the claws (12) is engaged with the edge of the third bus (31).

7. The fuse box assembly according to claim 5, characterized in that: The second bus protection assembly (30) further comprises a DC conversion protection fuse (34), wherein the DC conversion protection fuse (34) is located between the starting protection fuse (22) and the functional load protection fuse (33), and one end of the DC conversion protection fuse (34) is overlapped on the third overlap surface (311), and the other end forms the DC power supply end (321).

8. The fuse box assembly according to claim 1, characterized in that: The box body (10) has an installation cavity (13) for the top of the storage battery (50) to be embedded, and two opposite side walls of the box body (10) are provided with buckles (14) extending downwards, and the buckles (14) are used to buckle the convex edges (52) on the side walls of the storage battery (50).

9. The fuse box assembly according to any one of claims 1 to 8, characterized in that: A plurality of upwardly protruding support ribs (15) are spaced apart on the bottom surface of the box body (10), and the first confluence protection assembly (20) and the second confluence protection assembly (30) both abut against the support ribs (15).

10. A vehicle, characterized in that It comprises a fuse box assembly as described in any one of claims 1 to 9.

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