Integrated fuse box

Abstract

The utility model belongs to the field of automobile parts, and particularly relates to an integrated fuse box. Comprising a body, an upper box body and a lower box body, the lower box body is opened downwards, the body comprises a binding post, a copper guide block, a chip fuse, a slow-melting fuse, a 30A relay and a 70A relay, and internal parts of the body are integrated and modularly arranged in the body; and through the design of the copper guide block, the circuit is divided into two parts, in the energy management of the whole vehicle, functional loops such as steering, braking, door lock and the like which do not work for a long time are distinguished, the total energy of a primary power supply loop is reduced, and the structure of the fuse box is optimized. And more efficient downstream energy management can be carried out, and optimal fuse and wire type selection conditions can be matched.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts, specifically relating to an integrated fuse box and its power distribution circuit. Background Technology

[0002] Currently, the four key requirements for automobiles—electrification, connectivity, intelligence, and sharing—have placed higher demands on the integration of automotive parts. Furthermore, with the rapid development of the logistics industry, competition in the light commercial vehicle market is becoming increasingly fierce. Low-cost design and development of automotive parts are better suited to meet the severe challenges of the market, and the power distribution structure requires a high degree of integration. The overall vehicle electrical system is complex, especially with the market favoring pure electric and hybrid trucks, which have added more electrical appliances to the vehicle. The smaller and shorter front compartment space of light commercial vehicles compared to passenger cars presents even greater challenges to circuit and component design. To meet the functional requirements of various electrical appliances, different demands are needed for fuses and relays, and higher requirements are placed on space, cost, and integration.

[0003] Traditional power distribution systems consist of a first-stage fuse and a second-stage fuse. The battery power line from the DC power supply is connected to the first-stage fuse, and the DC power is then transmitted to the second-stage fuse, forming a first-stage and second-stage power distribution structure. This traditional power distribution circuit requires two fuses, which is severely limited by space and cannot meet cost requirements. Therefore, there is an urgent need for a fuse box and a matching power distribution circuit to solve the above problems. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a fuse box and power distribution circuit with high integration, versatility, and space-saving design for the front compartment, taking into account both cost and space requirements. The specific technical solution is as follows:

[0005] An integrated fuse box is characterized by comprising a main body, an upper box, and a lower box. The lower box opens downwards. The main body includes terminals, a copper conductor, a blade fuse, a slow-blow fuse, a 30A relay, and a 70A relay. The terminals secure four stud fuses to the main body via nuts, distributing the first-stage T30 electrical connection and the second-stage T30 electrical connection of the vehicle's power supply. The blade fuse, slow-blow fuse, 30A relay, and 70A relay are integrated modularly within the main body. The copper conductor is positioned below the stud fuses. A rectangular cavity is provided on one side of the main body, and correspondingly, a rectangular groove is provided on the lower box. The cavity and groove interlock to form the outlet of the fuse terminals. This is used to connect upstream power circuits and downstream electrical equipment or the next level of power distribution; simultaneously, the fuse box provides overall protection for the four terminals.

[0006] Furthermore, the main body and the lower box are interlocked by a locking mechanism to form the inner cavity of the fuse box, and the power supply circuits are interconnected within the inner cavity.

[0007] Furthermore, eight terminals are arranged at intervals inside the fuse box. The first and fifth terminals are assigned to the first-level T30 electrical connection of the vehicle power supply, and the second, third, fourth, sixth, seventh, and eighth terminals are assigned to the second-level T30 electrical connection of the vehicle power supply. The first terminal is connected to the battery, and the fifth terminal is connected to the generator.

[0008] Furthermore, a circular cable outlet is provided at the bottom of the lower box, with a first cable tie hole and a second cable tie hole provided at the cable outlet to fix the downward-facing cable bundle and prevent the cable bundle from shifting due to relative movement.

[0009] Furthermore, the copper conductor block is provided in three parts. The first copper conductor block has four holes, three of which are vertical and one is horizontal, which are connected to the positive terminal of the T15 power supply. After the generator starts working, the circuit of the electrical equipment that is separated is a short-time working circuit, and it is a separate three-way protection circuit that can withstand peak current. The second copper conductor block has four holes in the horizontal direction, and the third copper conductor block has four holes, three of which are vertical and one is horizontal, which are connected to the positive terminal of the T30 power supply. The traditional first-level power supply protection circuit and the second-level power supply protection circuit are retained.

[0010] Furthermore, the relay socket inside the integrated fuse box is configured with 5 connection sockets.

[0011] This utility model has a downward opening in the lower box body, forming a downward wiring space for the fuse box. It is arranged in the Z-axis of the whole vehicle, occupying less space in the X and Y axes. It also adopts a modular design structure, maximizing platform universality and cost savings, and adapting to different configuration requirements.

[0012] This invention utilizes a novel power distribution circuit, including a T30 positive power connector, a T15 positive power connector, a first-stage power supply protection circuit, and a second-stage power supply protection circuit. The first-stage power supply circuit is split via copper conductors, retaining the long-term operating equipment within it. Within the existing fuse box space, the most suitable and cost-effective fuse protection circuit is selected. The separated equipment circuits, which operate for short periods, are matched with fuse protection circuits capable of withstanding peak current. In vehicle energy management, this distinguishes non-long-term operating functional circuits such as steering, braking, and door locks, reducing the total energy of the first-stage power supply circuit and optimizing the fuse box structure. This enables more efficient downstream energy management and allows for optimal fuse and wire selection. Attached Figure Description

[0013] Figure 1 Schematic diagram of the external structure of the fuse box of this utility model;

[0014] Figure 2 An exploded view of the overall structure of the fuse box of this utility model;

[0015] Figure 3 Schematic diagram of the lower body of the fuse box of this utility model;

[0016] Figure 4 A schematic diagram of the structure of the first copper conductor block inside the fuse box of this utility model;

[0017] Figure 5 A schematic diagram of the structure of the second copper conductor block inside the fuse box of this utility model;

[0018] Figure 6 A schematic diagram of the structure of the third copper conductor block inside the fuse box of this utility model;

[0019] Figure 7 Schematic diagram of the fuse box body structure of this utility model;

[0020] Figure 8 This utility model presents a schematic diagram of the structure for removing the relay socket from the fuse box body.

[0021] Figure 9 Schematic diagram of the structure of the fuse box and relay socket of this utility model;

[0022] Figure 10 Schematic diagram of the power distribution circuit design of this utility model;

[0023] Figure label:

[0024] 1-Main body, 2-Upper box, 3-Lower box, 4-Stud fuse, 5-Blade fuse, 6-Slow-blow fuse, 7-70A relay, 8-30A relay, 9-Nut, 10-Cavity, 11-Groove, 12-Cable outlet, 121-First cable tie hole, 122-Second cable tie hole. Detailed Implementation

[0025] 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 protection scope of the present utility model.

[0026] like Figure 1-9As shown, an integrated fuse box includes a main body 1, an upper box 2, and a lower box 3. The lower box 3 opens downwards. The main body 1 includes terminals, copper conductors, a blade fuse 5, a slow-blow fuse 6, a 30A relay 8, and a 70A relay 7. The terminals are secured to four stud fuses 4 by nuts 9, which are distributed to the first-stage T30 electrical connection and the second-stage T30 electrical connection of the vehicle power supply. The blade fuse 5, the slow-blow fuse 6, the 30A relay 8, and the 70A relay 7 are integrated and modularly housed within the main body 1. Figure 7-8 The modular design structure shown maximizes platform universality and cost savings, and adapts to different configuration requirements; the copper conductor block is set below the stud fuse 4; a rectangular cavity is provided on one side of the body 1, and a rectangular groove 11 is provided on the lower box 3, the cavity and the groove 11 are interlocked to form the outlet of the fuse terminal.

[0027] like Figure 1 As shown, the main body and the lower box are fastened together by a locking mechanism.

[0028] The fuse box contains eight terminals spaced apart. The first and fifth terminals are assigned to the first-stage T30 electrical connection of the vehicle power supply, while the second, third, fourth, sixth, seventh, and eighth terminals are assigned to the second-stage T30 electrical connection of the vehicle power supply. The first terminal is connected to the battery, and the fifth terminal is connected to the generator.

[0029] like Figure 3 As shown, the bottom of the lower box 3 is provided with a circular cable outlet 12, and the cable outlet 12 is provided with a first cable tie hole 121 and a second cable tie hole 122.

[0030] like Figure 4-6 As shown, there are three copper conductor blocks. The first copper conductor block has four holes, three of which are vertical and one is horizontal, and is connected to the positive terminal of the T15 power supply. The second copper conductor block has four holes in the horizontal direction, and the third copper conductor block has four holes, three of which are vertical and one is horizontal, and is connected to the positive terminal of the T30 power supply.

[0031] like Figure 9 As shown, the relay socket inside the integrated fuse box is configured with 5 connection sockets.

[0032] like Figure 10 The circuit design is a new power distribution circuit. Based on the traditional power distribution circuit, the original two fuse boxes are merged into one integrated fuse box. Under the new power distribution circuit, more efficient downstream energy management is achieved, and the optimal fuse and wire selection conditions are matched.

[0033] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. An integrated fuse box, characterized in that: The device includes a main body (1), an upper box (2), and a lower box (3). The lower box (3) opens downwards. The main body (1) includes a terminal block, a copper conductor block, a chip fuse (5), a slow-blow fuse (6), a 30A relay (8), and a 70A relay (7). The terminal block is fixed with a nut (9) to four stud fuses (4), which are distributed to the first-stage T30 electrical connection and the second-stage T30 electrical connection of the vehicle power supply. The chip fuse (5), the slow-blow fuse (6), the 30A relay (8), and the 70A relay (7) are integrated and modularly placed inside the main body (1). The copper conductor block is located below the stud fuses (4). A rectangular cavity is provided on one side of the main body (1). Correspondingly, a rectangular groove (11) is provided on the lower box (3). The cavity and the groove (11) are interlocked to form the outlet of the fuse terminal block.

2. The integrated fuse box according to claim 1, characterized in that: The main body and the lower box are locked together by a locking mechanism.

3. An integrated fuse box according to claim 1, characterized in that: The fuse box contains eight terminals spaced apart. The first and fifth terminals are assigned to the first-stage T30 electrical connection of the vehicle power supply, while the second, third, fourth, sixth, seventh, and eighth terminals are assigned to the second-stage T30 electrical connection of the vehicle power supply. The first terminal is connected to the battery, and the fifth terminal is connected to the generator.

4. An integrated fuse box according to claim 1, characterized in that: The bottom of the lower box (3) is provided with a circular cable outlet (12), and the cable outlet (12) is provided with a first cable tie hole (121) and a second cable tie hole (122).

5. An integrated fuse box according to claim 1, characterized in that: The copper conductor block is provided in three parts. The first copper conductor block has four holes, three of which are vertical and one is horizontal, and is connected to the positive terminal of the T15 power supply. The second copper conductor block has four holes in the horizontal direction. The third copper conductor block has four holes, three of which are vertical and one is horizontal, and is connected to the positive terminal of the T30 power supply.

6. An integrated fuse box according to claim 1, characterized in that: The relay socket inside the integrated fuse box is configured with 5 connection sockets.

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