A positive terminal fuse box, assembly, and vehicle for an automotive battery

Abstract

This application discloses a positive terminal fuse box, assembly, and vehicle for an automotive battery, belonging to the field of automotive technology. The positive terminal fuse box includes a box body; a main conductive connecting piece, multiple first mounting slots, and second mounting slots are arranged in a horizontal plane of the box body; the upper end of the main conductive connecting piece is connected to the positive terminal, and the lower end of the main conductive connecting piece is connected to a clip for use with a charging device and a first external wire connecting post; the multiple first mounting slots, second mounting slots, and the positive terminal are on the same horizontal plane; a first conductive connecting post is arranged at the left end of the first mounting slot, and a second external wire connecting post is arranged at the right end of the first mounting slot; the first conductive connecting post is connected to the main conductive connecting piece; a second conductive connecting post is arranged at the upper end of the second mounting slot, and a third external wire connecting post is arranged at the lower end of the second mounting slot; the second conductive connecting post is connected to the main conductive connecting piece through a secondary conductive connecting piece. It does not easily generate a large amount of heat and has a small vertical installation size.

Description

Technical Field

[0001] This application relates to the field of automotive technology, and in particular to a positive terminal fuse box, assembly, and vehicle for an automotive battery. Background Technology

[0002] With the significant increase in automotive electrification, the surge in the number and types of electrical components in vehicles has led to increased power demands in automotive circuits. Furthermore, the increased integration of automotive load circuits necessitates more high-power circuits. The power required for all automotive electrical loads originates from the battery and engine, or the battery and DC-DC converter. Power is then distributed through the fuse box before being connected to the wiring harness to each electrical load. The fuse box not only distributes power but also protects the wiring harness. The fuse box is a crucial component for protecting automotive wiring harnesses.

[0003] The positive fuse box is a common automotive electrical box. Traditional positive fuse boxes typically have multiple fuses arranged in parallel. This results in a large current flowing through the fuse box and into the vehicle's wiring harness after the vehicle starts. When this large current flows through the parallel fuses, it generates a lot of heat at the connection points of the wiring harness, which negatively impacts the heat dissipation of the fuse box and thus affects the safety of the entire vehicle. At the same time, most existing fuse boxes use a vertical arrangement of fuses, which takes up a large vertical space and is not conducive to installation. Summary of the Invention

[0004] This application provides a positive terminal fuse box, assembly, and vehicle for an automotive battery, which can solve the problems of existing fuse boxes easily generating a lot of heat and having large vertical installation dimensions.

[0005] On the one hand, a positive terminal fuse box for automotive batteries is provided, including a box body; a main conductive connecting piece, a plurality of first mounting slots and second mounting slots are provided in the horizontal plane of the box body;

[0006] The upper end of the main conductive connector is connected to the positive terminal, and the lower end of the main conductive connector is connected to the clip that can be used by the charging device clip and the first external wire connection post.

[0007] Multiple first mounting slots, second mounting slots, and positive terminal heads are on the same horizontal plane. A first conductive connecting post is set at the left end of the first mounting slot, and a second external wire connecting post is set at the right end of the first mounting slot. The first conductive connecting post is connected to the main conductive connecting piece. A second conductive connecting post is set at the upper end of the second mounting slot, and a third external wire connecting post is set at the lower end of the second mounting slot. The second conductive connecting post is connected to the main conductive connecting piece through a secondary conductive connecting piece.

[0008] Optionally, multiple first mounting slots are provided on the right side of the horizontal position of the positive terminal head;

[0009] The second mounting slot is located below the horizontal position of the first mounting slot.

[0010] Optionally, a set distance is set between adjacent first mounting slots.

[0011] Optionally, a partition plate is provided between the second mounting slot and the plurality of first mounting slots.

[0012] Optionally, the left side of the second mounting groove, the lower side of the first mounting groove, and the right side of the main conductive connecting piece form a secondary conductive connecting piece passing through area; one end of the secondary conductive connecting piece is connected to the main conductive connecting piece, and the other end of the secondary conductive connecting piece passes through this area and is connected to the second conductive connecting post.

[0013] Optionally, slots for wires to pass through are provided near the first external wire connection post, the second external wire connection post, and the third external wire connection post of the housing.

[0014] Optionally, all conductive connection posts and external wire connection posts are provided with bosses and limiters, and a fuse is installed between the bosses and limiters.

[0015] Optionally, a lid is provided at the top of the box body, and the lid is connected to the box body by a buckle. The buckle is also connected to a clip for connecting to the power supply.

[0016] On the other hand, a positive fuse box assembly for an automotive battery is provided, including the aforementioned positive fuse box for an automotive battery, a second fuse, and a plurality of first fuses. The plurality of first fuses are correspondingly installed in a plurality of first mounting slots, and one end of the first fuse is connected to a first conductive connection post, and the other end of the first fuse is connected to a second external wire connection post. The second fuse is installed in a second mounting slot, and one end of the second fuse is connected to a second conductive connection post, and the other end of the second fuse is connected to a third external wire connection post.

[0017] On the other hand, a vehicle is provided, including the aforementioned positive terminal fuse box for an automotive battery.

[0018] The beneficial effects of the technical solutions provided in this application include at least the following:

[0019] A positive terminal fuse box for automotive batteries features multiple first and second mounting slots within its interior. The first slots accommodate MIDI fuses, while the second slots accommodate MEGA fuses, thus meeting the circuit protection requirements of multi-channel high-power integrated loads with high integration. Power transmission and distribution are achieved using two conductive connecting pieces: a main conductive connecting piece and a secondary conductive connecting piece. This increases the area of ​​the conductive connecting pieces, enlarging the conductor's heat dissipation area and allowing for rapid heat dissipation when large currents pass through, improving the safety and reliability of the power distribution system. The multiple first and second mounting slots and the positive terminal are all on the same horizontal plane, significantly reducing the longitudinal (Z-axis) space required for the fuse box. When the fuse box is later installed above the battery, it increases the horizontal (XY-axis) space available for the battery, facilitating installation on batteries suitable for various vehicle models. Each connecting post is equipped with a boss and a limiter to secure the fuse, improving its reliability. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is an overall explosion diagram of a positive fuse box for an automotive battery provided in an embodiment of this application;

[0022] Figure 2 This is an isometric side view of a positive terminal fuse box for an automotive battery provided in an embodiment of this application;

[0023] Figure 3 This is a top view of a positive terminal fuse box for an automotive battery provided in an embodiment of this application;

[0024] Figure 4 This is a bottom view of a positive terminal fuse box for an automotive battery provided in an embodiment of this application;

[0025] Figure 5 This is a left view of a positive terminal fuse box for an automotive battery provided in an embodiment of this application;

[0026] Figure 6 This is a right view of a positive terminal fuse box for an automotive battery provided in an embodiment of this application;

[0027] Figure 7 This is a front view of a positive terminal fuse box for an automotive battery provided in an embodiment of this application;

[0028] Figure 8 This is a rear view of a positive terminal fuse box for an automotive battery provided in an embodiment of this application.

[0029] 1. Positive terminal marking, 2. Box cover, 3. Clip, 4. Hex head nut, 5. Nut, 6. MIDI fuse, 7. Main conductive connector, 8. Hex head nut, 9. Nut, 10. Clip, 11. Secondary conductive connector, 12. MEGA fuse, 13. Positive terminal, 14. Connecting stud, 15. Shaft, 16. B+ stud power busbar, 17. Bolt, 18. First external wire connector post, 19. Second external wire connector post, 20. Card holder, 21. Box body, 22. Second conductive connector post, 23. Clip. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0031] This application provides a positive fuse box for an automotive battery, which can be installed on the vehicle's battery. The positive fuse box distributes power and then connects the wiring harness to each electrical load.

[0032] Please refer to Figure 1 , Figure 1 This is an exploded view of an automotive battery positive terminal fuse box according to an embodiment of this application. An automotive battery positive terminal fuse box includes a box body 21; a main conductive connecting piece 7, multiple first mounting slots, and second mounting slots are provided in the horizontal plane of the box body 21.

[0033] The upper end of the main conductive connecting piece 7 is connected to the positive terminal 13, and the lower end of the main conductive connecting piece 7 is connected to the clip 10 that can be used by the charging device clip and the first external wire connecting post 18.

[0034] Multiple first mounting slots, second mounting slots, and positive terminal 13 are on the same horizontal plane. A first conductive connecting post is set at the left end of the first mounting slot, and a second external wire connecting post 19 is set at the right end of the first mounting slot. The first conductive connecting post is connected to the main conductive connecting piece 7. A second conductive connecting post 22 is set at the upper end of the second mounting slot, and a third external wire connecting post is set at the lower end of the second mounting slot. The second conductive connecting post 22 is connected to the main conductive connecting piece 7 through the secondary conductive connecting piece 11.

[0035] Among them, multiple first installation slots are set on the right side of the horizontal position of the positive terminal head;

[0036] The main conductive connector 7 is located at the left end of the housing 21. Multiple first mounting slots are arranged side by side along the longitudinal direction of the housing 21. The length direction of the first mounting slot is consistent with the transverse direction of the housing 21. Each first mounting slot can be equipped with a MIDI fuse 6. One end of the MIDI fuse 6 is connected to the first conductive connection post, and the other end of the MIDI fuse 6 is connected to the second external wire connection post 19.

[0037] The second mounting slot is located below the horizontal position of the first mounting slot, and the second mounting slot is arranged along the longitudinal direction of the box body. The length direction of the second mounting slot is consistent with the longitudinal direction of the box body 21. The second conductive connecting post 22 is connected to the end of the second mounting slot near the first mounting slot, and the third external wire connecting post is connected to the end of the second mounting slot away from the first mounting slot. The MEGA fuse 12 can be installed in the second mounting slot. One end of the MEGA fuse 12 is connected to the second conductive connecting post 22, and the other end of the MEGA fuse 12 is connected to the third external wire connecting post.

[0038] The left side of the second mounting groove, the lower side of the first mounting groove, and the right side of the main conductive connecting piece 7 form a secondary conductive connecting piece passing through area; one end of the secondary conductive connecting piece 11 is connected to the main conductive connecting piece 7, and the other end of the secondary conductive connecting piece 11 passes through this area and is connected to the second conductive connecting post 22.

[0039] In this embodiment, the power transmission and distribution requirements are met by using the main conductive connecting piece 7 and the secondary conductive connecting piece 11. This increases the area of ​​the conductive connecting piece and the heat dissipation area of ​​the conductor, allowing heat to dissipate quickly when a large current passes through, thus improving the safety and reliability of the power distribution system. By placing the first mounting slot, the second mounting slot, the main conductive connecting piece 7, and the secondary conductive connecting piece 11 all on the horizontal plane of the housing, the space used in the Z-axis (vertical) direction of the battery positive terminal fuse box is greatly reduced, increasing the use of the XY plane (horizontal plane) of the battery. This facilitates the arrangement and installation of batteries suitable for various vehicle models. By setting the first and second mounting slots and related connecting posts, this embodiment can meet the circuit protection requirements of multiple high-power integrated loads, achieving a high degree of integration.

[0040] In some embodiments, there are three first mounting slots.

[0041] In some embodiments, the positive terminal 13 and the main conductive connecting piece 7 are connected by a B+ stud power busbar 16 and fixed by a hexagonal nut 8 with a torque of 13 N·m.

[0042] In some embodiments, the main conductive connecting piece 7 and the secondary conductive connecting piece 11 are connected by a stud 14 and fastened by a hexagonal head nut 4 with a fastening torque of 13 N·m.

[0043] To facilitate installation and heat dissipation, a set distance is set between adjacent first mounting slots.

[0044] Preferably, the distance is set to 15mm.

[0045] To prevent heat from affecting the MIDI fuse 6 and the MEGA fuse 12, a spacer is provided between the second mounting slot and the multiple first mounting slots.

[0046] To prevent fuses from dislodging and to facilitate fuse installation, bosses and limiters are provided on all conductive connection posts and external wire connection posts. The space between the bosses and limiters is used to install the fuse. When installing a fuse, the fuse is placed in the corresponding mounting slot, with the fuse positioned between the boss and the limiter, and the limiter secures the fuse in place.

[0047] Preferably, the limiting device provided on the first conductive connecting post is a nut 5.

[0048] To facilitate wire harness installation, slots for wires to pass through are provided near the first external wire connection post 18, the second external wire connection post 19, and the third external wire connection post of the box.

[0049] Preferably, a 10.8mm groove is left near the second external wire connection post 19 to provide a connection position for the 25mm power supply wire.

[0050] refer to Figures 2-8 In some embodiments, a lid 2 is provided at the top of the box body 21, and the lid 2 is connected to the box body 21 by a snap fastener 3.

[0051] Preferably, one end of the lid 2 is connected to the box body 21 via a pivot 15, so that the lid 2 can be opened and closed relative to the box body 21.

[0052] The buckle 3 is set on the lid 2, and the corresponding box body 21 is provided with a locking platform 20. The buckle and the locking platform are elastic buckles and elastic locking platforms. When the lid 2 is rotated to close the box body 21, the buckle 3 is fastened to the locking platform 20, so as to achieve a tight connection between the lid 2 and the box body 21.

[0053] For easy identification, a positive electrode mark 1 is provided on the box cover 2, which can be represented by a red cross.

[0054] In addition, the card holder 20 is also connected to a clip 23, which is used to connect to the battery.

[0055] This application provides a positive terminal fuse box for automotive batteries, which is later installed in the space above the battery. When the positive terminal fuse box is installed on the battery, the positive terminal 13 is installed on the battery, and the clip 23 is fixed on the battery. Specifically, the positive terminal 13 is installed above the battery using studs 17 and nuts 9. The first mounting groove is located on the right side of the horizontal position of the positive terminal 13, parallel to the horizontal plane above the battery. This allows for the use of the space above the battery during later installation and facilitates the installation of MIDI (Medium-Density Components). Nut 9 is tightened with a torque of 9 N·m to secure the positive terminal 13. The main conductive connecting piece, the secondary conductive connecting piece, the positive terminal, the mounting grooves, the spacer, and the connecting posts constitute the support of the fuse box. The support and the arrangement of the fuses are mostly located around the horizontal perimeter of the positive terminal, increasing the utilization rate of the XY plane of the battery and reducing the utilization rate of the Z plane, making it suitable for the installation of batteries in various vehicle models.

[0056] Preferably, nut 9 is a hexagonal anti-reverse nut.

[0057] All conductive connectors are made of H65Y2 material and have a matte tin surface treatment.

[0058] The lid 2 is made of PP+T20, and the body 21 is made of PA6+GF15.

[0059] This application provides a battery positive fuse box for automobiles, which adopts a platform-based and universal design scheme. It uses a large-capacity fuse and increases the cross-sectional area through which the current passes. Structurally, this prevents the current from generating a large amount of heat in a short time. It can also be adapted to different power distribution methods and meet the needs of different vehicle models. It is a battery positive fuse box that is easy to install, easy to arrange, and can carry a large current.

[0060] This application embodiment also provides an automotive battery positive terminal fuse box assembly, including the aforementioned automotive battery positive terminal fuse box, a second fuse, and a plurality of first fuses. The plurality of first fuses are correspondingly installed in a plurality of first mounting slots, and one end of the first fuse is connected to a first conductive connection post, and the other end of the first fuse is connected to a second external wire connection post. The second fuse is installed in a second mounting slot, and one end of the second fuse is connected to a second conductive connection post, and the other end of the second fuse is connected to a third external wire connection post.

[0061] The first fuse is a MIDI fuse, and the second fuse is a MEGA fuse.

[0062] This application also provides a vehicle, including the aforementioned automotive battery positive terminal fuse box.

[0063] In this application, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0064] While the specific embodiments of the present invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of the present invention are still within the scope of protection of the present invention.

Claims

1. A positive terminal fuse box for an automotive battery, characterized in that, Includes a housing; a main conductive connecting piece, multiple first mounting slots and second mounting slots are provided in the horizontal plane of the housing; The upper end of the main conductive connector is connected to the positive terminal, and the lower end of the main conductive connector is connected to the clip that can be used by the charging device clip and the first external wire connection post. Multiple first mounting slots, second mounting slots, and positive terminal heads are on the same horizontal plane. A first conductive connecting post is set at the left end of the first mounting slot, and a second external wire connecting post is set at the right end of the first mounting slot. The first conductive connecting post is connected to the main conductive connecting piece. A second conductive connecting post is set at the upper end of the second mounting slot, and a third external wire connecting post is set at the lower end of the second mounting slot. The second conductive connecting post is connected to the main conductive connecting piece through a secondary conductive connecting piece.

2. The positive terminal fuse box for an automotive battery as described in claim 1, characterized in that, Multiple first mounting slots are located on the right side of the horizontal position of the positive terminal head; The second mounting slot is located below the horizontal position of the first mounting slot.

3. The positive terminal fuse box for an automotive battery as described in claim 1, characterized in that, The distance between adjacent first mounting slots is set.

4. The positive terminal fuse box for an automotive battery as described in claim 1, characterized in that, A partition plate is provided between the second mounting slot and the multiple first mounting slots.

5. A positive terminal fuse box for an automotive battery as described in claim 1, characterized in that, The left side of the second mounting groove, the lower side of the first mounting groove, and the right side of the main conductive connecting piece form a secondary conductive connecting piece passing through area; one end of the secondary conductive connecting piece is connected to the main conductive connecting piece, and the other end of the secondary conductive connecting piece passes through this area and is connected to the second conductive connecting post.

6. The positive terminal fuse box for an automotive battery as described in claim 1, characterized in that, The box body is provided with slots for wires to pass through near the first external wire connection post, the second external wire connection post and the third external wire connection post.

7. A positive terminal fuse box for an automotive battery as described in claim 1, characterized in that, All conductive connection posts and external wire connection posts are equipped with bosses and limiters, and fuses are installed between the bosses and limiters.

8. A positive terminal fuse box for an automotive battery as described in claim 1, characterized in that, A lid is installed at the top of the box, and the lid is connected to the box by a buckle. The buckle is also connected to a clip for connecting to the power supply.

9. A positive terminal fuse box assembly for an automotive battery, characterized in that, The invention includes a positive terminal fuse box for an automotive battery, a second fuse, and a plurality of first fuses as described in any one of claims 1-8. The plurality of first fuses are correspondingly installed in a plurality of first mounting slots, and one end of the first fuse is connected to a first conductive connection post, and the other end of the first fuse is connected to a second external wire connection post. The second fuse is installed in a second mounting slot, and one end of the second fuse is connected to a second conductive connection post, and the other end of the second fuse is connected to a third external wire connection post.

10. A vehicle, characterized in that, Includes a positive terminal fuse box for an automotive battery as described in any one of claims 1-8.

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