Fuse module and vehicle power distribution system

Abstract

The utility model discloses a fuse module and a vehicle power distribution system, and relates to the connector technology field, the fuse module comprises a first fuse assembly and a second fuse assembly, the first fuse assembly comprises two first terminal seats and a first fuse main body, and the second fuse assembly comprises two second terminal seats and a second fuse main body. Two ends of the first fuse main body are respectively connected with the two first terminal seats; the second fuse assembly comprises two second terminal seats and a second fuse main body; two ends of the second fuse main body are respectively connected with the two second terminal seats; the extension direction of the first fuse assembly and the second fuse assembly is defined as a first direction, and the first fuse assembly and the second fuse assembly are partially overlapped in the first direction. The fuse module provided by the utility model aims to reduce the occupied area of the fuse module.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a fuse module and an automotive power distribution system. Background Technology

[0002] The PDU (Power Distribution Unit) in an vehicle is a key high-voltage power distribution device in electric and hybrid vehicles. It is mainly used to efficiently manage and distribute the high-voltage electrical energy of the battery system, distributing the high-voltage DC power from the power battery to core components such as the drive motor, air conditioning compressor, and on-board charger, ensuring a stable power supply to each subsystem.

[0003] In existing vehicle power distribution systems, multiple fuse holders are laid out flat, which takes up too much space. Utility Model Content

[0004] The main purpose of this invention is to propose a fuse module and a vehicle power distribution system, which aims to reduce the footprint of the fuse module.

[0005] To achieve the above objectives, the present invention proposes a fuse module comprising a first fuse assembly and a second fuse assembly. The first fuse assembly includes two first terminal blocks and a first fuse body, with both ends of the first fuse body connected to one of the first terminal blocks respectively. The second fuse assembly includes two second terminal blocks and a second fuse body, with both ends of the second fuse body connected to the two second terminal blocks respectively. The extending directions of the first fuse assembly and the second fuse assembly are defined as a first direction, and the first fuse assembly and the second fuse assembly partially overlap in the first direction.

[0006] In one embodiment, the ratio of the length of the portion of the second terminal block located between the two first terminal blocks to the length of the second terminal block is greater than or equal to 0.3 and less than or equal to 0.5.

[0007] In one embodiment, the ratio of the distance between the second terminal block and one of the first terminal blocks to the distance between the second terminal block and another terminal block is greater than or equal to 0.14 and less than or equal to 0.21.

[0008] In one embodiment, the fuse module further includes a third fuse assembly, which includes two third terminal blocks and a third fuse body. The two ends of the third fuse body are respectively connected to the two third terminal blocks. The third fuse assembly is located on the other side of the second fuse assembly away from the first fuse assembly. The third fuse body is arranged parallel to the second fuse body, and a portion of the third terminal block is located between the two second terminal blocks.

[0009] In one embodiment, the first terminal block and the second fuse body partially overlap in the first direction.

[0010] In one embodiment, the first fuse assembly and the second fuse assembly are offset in the vertical direction.

[0011] In one embodiment, the third fuse assembly and the second fuse assembly are offset in the vertical direction.

[0012] In one embodiment, the third fuse assembly and the first fuse assembly are offset in the vertical direction.

[0013] In one embodiment, the fuse module further includes a fourth fuse assembly, which includes two fourth terminal blocks and a fourth fuse body. The two ends of the fourth fuse body are respectively connected to the two fourth terminal blocks. The fourth fuse assembly is located on the side of the second fuse assembly away from the third fuse assembly. The fourth fuse body is located on the same straight line as the first fuse assembly, and a portion of the fourth terminal block is located between the two second terminal blocks.

[0014] The fourth fuse assembly and the first fuse assembly are offset in the vertical direction;

[0015] And / or, the fourth fuse assembly and the second fuse assembly are offset in the vertical direction;

[0016] And / or, the fourth fuse assembly and the third fuse assembly are offset in the vertical direction.

[0017] This utility model also proposes a vehicle power distribution system, including the fuse module described above.

[0018] The technical solution of this utility model adopts a staggered arrangement of the terminal blocks of the fuse assembly, specifically, a second terminal block portion is located between two first terminal blocks, and a first terminal block portion is located between two second terminal blocks. This can reduce the floor space occupied by the fuse assembly, save space, and eliminate the need for additional plastic partitions between two adjacent fuse assemblies with staggered arrangements, thus saving costs. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the structure of an embodiment of the fuse module provided by this utility model;

[0021] Figure 2 A top view of another embodiment of the fuse module provided by this utility model;

[0022] Figure 3 A side view of another embodiment of the fuse module provided by this utility model.

[0023] Explanation of icon numbers:

[0024] 100. Fuse module; 1. First fuse assembly; 11. First terminal block; 12. First fuse body; 2. Second fuse assembly; 21. Second terminal block; 22. Second fuse body; 3. Third fuse assembly; 31. Third terminal block; 32. Third fuse body; 4. Fourth fuse assembly; 41. Fourth terminal block; 42. Fourth fuse body.

[0025] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0027] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0028] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0029] The PDU (Power Distribution Unit) in an vehicle is a key high-voltage power distribution device in electric and hybrid vehicles. It is mainly used to efficiently manage and distribute the high-voltage electrical energy of the battery system, distributing the high-voltage DC power from the power battery to core components such as the drive motor, air conditioning compressor, and on-board charger, ensuring a stable power supply to each subsystem.

[0030] In existing vehicle power distribution systems, multiple fuse holders are laid out flat, which takes up too much space.

[0031] This utility model proposes a fuse module 100 and a vehicle power distribution system, aiming to reduce the footprint of the fuse module 100.

[0032] Please see Figures 1 to 3 In one embodiment of this utility model, the fuse module 100 is applied to a vehicle power distribution system. The fuse module 100 includes a first fuse assembly 1 and a second fuse assembly 2. The first fuse assembly 1 includes two first terminal blocks 11 and a first fuse body 12, with both ends of the first fuse body 12 connected to the two first terminal blocks 11 respectively. The second fuse assembly 2 includes two second terminal blocks 21 and a second fuse body 22, with both ends of the second fuse body 22 connected to the two second terminal blocks 21 respectively. The extending directions of the first fuse assembly 1 and the second fuse assembly 2 are defined as a first direction, and the first fuse assembly 1 and the second fuse assembly 2 partially overlap in the first direction.

[0033] In this embodiment, the first fuse assembly 1 includes a first fuse body 12 and two first terminal blocks 11. The structure and specifications of the first fuse body 12 and the two first terminal blocks 11 are common structures and specifications available on the market. Connecting holes are provided at both ends of the first terminal blocks 11, through which fasteners such as screws can pass to fix the first terminal blocks 11 inside the vehicle PDU. A bolt and nut are provided at the upper end of the first terminal blocks 11. One end of the first fuse body 12 and a terminal are fixed to the first terminal block 11 by the nut, so that the terminal is electrically connected to the first fuse body 12. The terminal is used to connect electrical wires, so that the first fuse body 12 is electrically connected to the electrical wires. It is understood that the structure of the second fuse assembly 2 is the same as that of the first fuse assembly 1. The electrical parameters of the first fuse assembly 1 and the second fuse assembly 2, such as rated voltage or rated current, may be the same or different. The vertical connection direction of the two first terminal blocks 11 is defined as the first direction, and the length direction of the first terminal block 11 is defined as the second direction. A portion of a second terminal block 21 in the second direction is located between the two first terminal blocks 11, that is, a portion of a second terminal block 21 passes through the two first terminal blocks 11 and overlaps with the two first terminal blocks 11 in the first direction. This reduces the floor space occupied by the fuse module 100, allowing for a greater number of fuse assemblies to be installed in a limited space, thereby increasing the rated current and rated voltage of the automotive PDU.

[0034] The technical solution of this utility model adopts a staggered arrangement of the terminal blocks of the fuse assembly. Specifically, a second terminal block 21 is partially located between two first terminal blocks 11, and a first terminal block 11 is partially located between two second terminal blocks 21. This can reduce the floor space occupied by the fuse assembly, save space, and eliminate the need for additional plastic partitions between two adjacent fuse assemblies with staggered arrangements, thus saving costs.

[0035] In an embodiment of this utility model, the ratio of the length of the portion of the second terminal block 21 located between the two first terminal blocks 11 to the length of the second terminal block 21 is greater than or equal to 0.3 and less than or equal to 0.5.

[0036] In this embodiment, the ratio of the length of the portion of the second terminal block 21 located between the two first terminal blocks 11 to the length of the second terminal block 21, that is, the ratio of the length of the overlapping portion of the second terminal block 21 and the first terminal block 11 in the first direction to the overall length of the second terminal block 21, is greater than or equal to 0.3 and less than or equal to 0.5, for example, 0.3, 0.4, 0.5 or any value within the above range. This ratio should not be too small, otherwise the overlapping portion of the second terminal block 21 and the first terminal block 11 in the first direction will be insufficient, occupying a large space; this ratio should also not be too large, otherwise the distance between the first fuse body 12 and the second fuse body 22 will be too small, resulting in a small electrical clearance and causing safety hazards.

[0037] In an embodiment of this utility model, the ratio of the distance between the second terminal block 21 and a first terminal block 11 and the distance between the second terminal block 21 and another terminal block is greater than or equal to 0.14 and less than or equal to 0.21.

[0038] In this embodiment, the ratio of the distance between the second terminal block 21 located between the two first terminal blocks 11 and one of the first terminal blocks 11 to the distance between the second terminal block 21 and the other terminal block is greater than or equal to 0.14 and less than or equal to 0.21, such as 0.14, 0.18, 0.21 or any value within the above range. This ratio should not be too small, otherwise the overlap between the first fuse assembly 1 and the second fuse assembly 2 in the first direction will be insufficient, resulting in a large space occupation. This ratio should also not be too large, otherwise the distance between the first fuse body 12 and the second fuse body 22 will be small, resulting in a small electrical clearance and causing safety hazards.

[0039] In an embodiment of this utility model, the fuse module 100 further includes a third fuse assembly 3. The third fuse assembly 3 includes two third terminal blocks 31 and a third fuse body 32. The two ends of the third fuse body 32 are respectively connected to the two third terminal blocks 31. The third fuse assembly 3 is located on the other side of the second fuse assembly 2 away from the first fuse assembly 1. The third fuse body 32 is arranged parallel to the second fuse body 22. A portion of the third terminal block 31 is located between the two second terminal blocks 21.

[0040] In this embodiment, the third fuse assembly 3 includes a third fuse body 32 and two third terminal blocks 31. The structure and specifications of the third fuse body 32 and the two third terminal blocks 31 are common structures and specifications on the market. The two ends of the third terminal blocks 31 are provided with connection holes, through which fasteners such as screws can pass to fix the third terminal blocks 31 into the vehicle PDU. The upper end of the third terminal blocks 31 is provided with bolts and nuts. One end of the third fuse body 32 and the terminal are fixed to the third terminal blocks 31 by the nuts, so that the terminal is electrically connected to the third fuse body 32. The terminal is used to connect the electrical wire, so that the third fuse body 32 is electrically connected to the electrical wire. The first fuse assembly 1 is located on one side of the second fuse assembly 2, and the third fuse assembly 3 is located on the other side of the second fuse assembly 2. The third fuse assembly 3, the second fuse assembly 2, and the first fuse assembly 1 are arranged in parallel. A portion of the third terminal block 31 is located between the two second terminal blocks 21, that is, a portion of the third terminal block 31 passes between the two second terminal blocks 21 and overlaps with the two second terminal blocks 21 in the second direction. This reduces the floor space occupied by the fuse module 100, allowing for a greater number of fuse assemblies to be installed in a limited space, thereby increasing the rated current and rated voltage of the vehicle PDU.

[0041] In an embodiment of this utility model, the first terminal block 11 and the second fuse body 22 partially overlap in a first direction.

[0042] In this embodiment, the first terminal block 11 and the second fuse body 22 partially overlap in the first direction, that is, the first terminal block 11 is partially located between the two second terminal blocks 21 of the second fuse body 22, which reduces the floor space occupied by the fuse module 100, and allows for the installation of more fuse components in a limited space, thereby increasing the rated current and rated voltage of the vehicle PDU.

[0043] In an embodiment of this utility model, the first fuse assembly 1 and the second fuse assembly 2 are offset in the vertical direction.

[0044] In this embodiment, the horizontal planes of the two first terminal blocks 11 of the first fuse assembly 1 and the two second terminal blocks 21 of the second fuse assembly 2 are vertically offset, that is, the two horizontal planes are not the same horizontal plane, so as to facilitate the wiring operation of the first terminal blocks 11 and the second terminal blocks 21.

[0045] In an embodiment of this utility model, the third fuse assembly 3 and the second fuse assembly 2 are offset in the vertical direction.

[0046] In this embodiment, the horizontal planes of the two third terminal blocks 31 of the third fuse assembly 3 and the two second terminal blocks 21 of the second fuse assembly 2 are vertically offset, that is, the two horizontal planes are not the same horizontal plane, so as to facilitate the wiring operation of the third terminal blocks 31 and the second terminal blocks 21.

[0047] In an embodiment of this utility model, the third fuse assembly 3 and the first fuse assembly 1 are offset in the vertical direction.

[0048] In this embodiment, the horizontal planes of the two third terminal blocks 31 of the third fuse assembly 3 and the two first terminal blocks 11 of the first fuse assembly 1 are vertically offset, meaning the two horizontal planes are not the same, to facilitate wiring operations between the third terminal blocks 31 and the first terminal blocks 11. In a preferred embodiment, the first fuse assembly 1, the second fuse assembly 2, and the third fuse assembly 3 are all vertically offset.

[0049] In an embodiment of this utility model, the fuse module 100 further includes a fourth fuse assembly 4, which includes two fourth terminal blocks 41 and a fourth fuse body 42. The two ends of the fourth fuse body 42 are respectively connected to the two fourth terminal blocks 41. The fourth fuse assembly 4 is located on the other side of the second fuse assembly 2 away from the third fuse assembly 3. The fourth fuse body 42 and the first fuse assembly 1 are located on the same straight line. A portion of the fourth terminal block 41 is located between the two second terminal blocks 21.

[0050] The fourth fuse assembly 4 and the first fuse assembly 1 are offset in the vertical direction;

[0051] And / or, the fourth fuse assembly 4 and the second fuse assembly 2 are offset in the vertical direction;

[0052] And / or, the fourth fuse assembly 4 and the third fuse assembly 3 are offset in the vertical direction.

[0053] In this embodiment, the fourth fuse assembly 4 includes a fourth fuse body 42 and two fourth terminal blocks 41. The structure and specifications of the fourth fuse body 42 and the two fourth terminal blocks 41 are common structures and specifications available on the market. Connecting holes are provided at both ends of the fourth terminal blocks 41, through which fasteners such as screws can pass to fix the fourth terminal blocks 41 inside the vehicle PDU. A bolt and nut are provided at the upper end of the fourth terminal blocks 41. One end of the fourth fuse body 42 and the terminal are fixed to the fourth terminal blocks 41 by the nut, so that the terminal is electrically connected to the fourth fuse body 42. The terminal is used to connect electrical wires, so that the fourth fuse body 42 is electrically connected to the electrical wires. The fourth fuse assembly 4 is located on the other side of the second fuse assembly 2 away from the third fuse assembly 3. The fourth fuse body 42 is on the same straight line as the first fuse assembly 1. A fourth terminal block 41 is located between the two second terminal blocks 21, making the arrangement of the four fuse assemblies more compact and reducing the floor space occupied by the fuse module 100. This allows for the installation of more fuse assemblies in a limited space, thereby increasing the rated current and rated voltage of the vehicle PDU.

[0054] The horizontal planes of the two fourth terminal blocks 41 of the fourth fuse assembly 4 are vertically offset from the horizontal planes of the two first and / or second and / or third terminal blocks 31 of the first fuse assembly 1, meaning the two horizontal planes are not the same, to facilitate wiring operations between the fourth terminal blocks 41 and the first and / or second and / or third terminal blocks 31. In a preferred embodiment, the first fuse assembly 1, the second fuse assembly 2, the third fuse assembly 3, and the fourth fuse assembly 4 are all vertically offset.

[0055] This utility model also proposes a vehicle power distribution system, including the fuse module described above.

[0056] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A fuse module, characterized in that, The fuse module includes: A first fuse assembly, comprising two first terminal blocks and a first fuse body, wherein both ends of the first fuse body are respectively connected to the two first terminal blocks; and The second fuse assembly includes two second terminal blocks and a second fuse body, with both ends of the second fuse body connected to the two second terminal blocks respectively. The extension directions of the first fuse assembly and the second fuse assembly are defined as the first direction, and the first fuse assembly and the second fuse assembly partially overlap in the first direction.

2. The fuse module as described in claim 1, characterized in that, The ratio of the length of the portion of the second terminal block located between the two first terminal blocks to the length of the second terminal block is greater than or equal to 0.3 and less than or equal to 0.

5.

3. The fuse module as described in claim 2, characterized in that, The ratio of the distance between the second terminal block and one of the first terminal blocks to the distance between the second terminal block and another terminal block is greater than or equal to 0.14 and less than or equal to 0.

21.

4. The fuse module as described in any one of claims 1 to 3, characterized in that, The fuse module further includes a third fuse assembly, which includes two third terminal blocks and a third fuse body. The two ends of the third fuse body are respectively connected to the two third terminal blocks. The third fuse assembly is located on the other side of the second fuse assembly away from the first fuse assembly. The third fuse body is arranged parallel to the second fuse body, and a portion of the third terminal block is located between the two second terminal blocks.

5. The fuse module as described in claim 4, characterized in that, The first terminal block and the second fuse body partially overlap in the first direction.

6. The fuse module as described in any one of claims 1 to 3, characterized in that, The first fuse assembly and the second fuse assembly are offset in the vertical direction.

7. The fuse module as described in claim 4, characterized in that, The third fuse assembly and the second fuse assembly are offset in the vertical direction.

8. The fuse module as described in claim 7, characterized in that, The third fuse assembly and the first fuse assembly are offset in the vertical direction.

9. The fuse module as described in claim 5, characterized in that, The fuse module further includes a fourth fuse assembly, which includes two fourth terminal blocks and a fourth fuse body. The two ends of the fourth fuse body are respectively connected to the two fourth terminal blocks. The fourth fuse assembly is located on the other side of the second fuse assembly away from the third fuse assembly. The fourth fuse body is located on the same straight line as the first fuse assembly. A portion of the fourth terminal block is located between the two second terminal blocks. The fourth fuse assembly and the first fuse assembly are offset in the vertical direction; And / or, the fourth fuse assembly and the second fuse assembly are offset in the vertical direction; And / or, the fourth fuse assembly and the third fuse assembly are offset in the vertical direction.

10. A vehicle power distribution system, characterized in that, The vehicle power distribution system includes a fuse module as described in any one of claims 1 to 9.

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