CN206179815U - Total fuse structure of car power supply - Google Patents

Abstract

The utility model discloses a main fuse structure of an automobile power supply, which includes a fuse box body in a cabin and a fuse group, the top of the fuse group is fixedly connected with a plurality of power output terminals, the bottom end of the fuse group is fixedly connected with a bus bar, and one end of the bus bar is provided with a Power input terminal; the engine room fuse box body is provided with a power input terminal installation hole and a power output terminal installation hole, the power input terminal is fixedly connected to the power input terminal installation hole, and the power output terminal is fixedly connected to the power output terminal installation hole. The utility model is fixed on the fuse box of the engine room through the power input end of one end of the bus bar, which is convenient to disassemble and has high integration and reduces the space occupied by the engine room; the power output terminal of the utility model is directly connected to the fuse box of the engine room through the installation hole of the power output terminal The boxes are internally connected, avoiding the arrangement of a power connection line between the two fuse boxes in the prior art, and reducing the cost of the wiring harness.

Description

Main fuse structure of automobile power supply

technical field

The utility model relates to auto parts, in particular to an automobile power main fuse structure.

Background technique

To improve reliability, the car's power supply is distributed using multi-stage fuses. At present, most automobiles use the battery positive main fuse box and the cabin fuse box to realize power distribution, and the battery positive main fuse box and the cabin fuse box are set independently. The aforementioned power distribution method has the following disadvantages: 1) The two fuse boxes need to be fixed and installed separately, which is not only inconvenient to install, but also takes up a large space in the cabin; 2) During the production process of the fuse box, the two fuse boxes need to be molded separately, and the mold cost 3) The connection wires between the two fuse boxes are relatively long, which not only increases the cost of the wiring harness, but also makes wiring harness layout difficult.

Contents of the invention

The purpose of the utility model is to provide a main fuse structure of an automobile power supply, which is easy to install, saves space, and has low production cost.

In order to achieve the above object, the utility model adopts the following technical scheme: a kind of main fuse structure of automobile power supply, including the engine room fuse box body, and also includes a fuse group, the top of the fuse group is fixedly connected with a number of power output terminals, and the fuse group The bottom end is fixedly connected with a bus bar, and one end of the bus bar is provided with a power input terminal; the fuse box body of the engine room is provided with a power input terminal installation hole and a power output terminal installation hole, and the power input terminal is connected to the power input terminal. The terminal mounting holes are fixedly connected, and the power output terminals are fixedly connected to the power output terminal mounting holes.

The utility model is fixed on the fuse box of the engine room through the power input terminal at one end of the bus bar, which is convenient to disassemble and assemble, and has high integration, which reduces the space occupied by the engine room; the power output terminal of the utility model is directly connected to the fuse box of the engine room through the installation hole of the power output terminal. The box is connected inside, avoiding the power connection line between the two fuse boxes in the prior art, and reducing the cost of the wiring harness; the utility model integrates the components of the main power fuse in the fuse box of the engine room through a reasonable layout, and has a structure Simple, complete functions, high integration, small size, easy installation and so on.

Further, the bus bar includes a supporting plate standing sideways at the bottom end of the fuse group and fixedly connected with the fuse group, one end of the supporting plate is connected with a connecting plate perpendicular to the supporting plate, and the connecting plate The power input terminal is connected to the top of the board.

Further, the power input terminal is a flat plate perpendicular to the connecting plate, and a power connection hole is opened on the flat plate.

Further, the power output terminal includes a power supply terminal for high-current electrical equipment, a power supply terminal for a high-current relay, and a fuse box main fuse power supply terminal connected to the inside of the fuse box body.

Further, the outlet direction of the power supply terminal of the high-current relay and the main insurance power supply terminal of the fuse box is opposite to that of the power supply terminal of the high-current electrical equipment.

Further, the fuse box body of the engine room is also provided with a bus bar through hole, and the bus bar is installed in the bus bar through hole.

Further, a first bolt is connected between the power input terminal and the installation hole of the power input terminal.

Further, a mounting base and fastening screws are connected between the power supply terminal of the high-current relay, the main fuse power supply terminal of the fuse box, and the installation hole of the power output terminal.

Furthermore, a second bolt is connected between the power supply terminal of the large current electrical equipment and the installation hole of the power output terminal.

Description of drawings

Fig. 1 is a structural schematic diagram of a main fuse structure of an automobile power supply.

Fig. 2 is a schematic diagram of the connection relationship among the fuse group, the bus bar and the output terminal of the power supply in Fig. 1 .

Fig. 3 is a schematic structural view of the main body of the fuse box in the engine room in Fig. 1 .

Fig. 4 is a schematic diagram of the fixing method of the fuse group, the bus bar and the output terminal of the power supply in Fig. 1 .

Fig. 5 is an exploded view of Fig. 1 .

detailed description

The utility model will be further described in detail below in conjunction with the accompanying drawings to facilitate a clearer understanding of the utility model, but they do not limit the utility model.

As shown in Figure 1, a general fuse structure for an automobile power supply includes a fuse box body 1 in the engine room and a fuse group 2. 30A-250A MEGA or MIDI fuse, the top of the fuse group 2 is fixedly connected with eight power output terminals 3, which are fixed on the base of the binding post, and there are through holes on it, of which four in a row are connected with the fuse box body 1 The internally connected high-current relay power supply terminal 3-1 and fuse box main insurance power supply terminal 3-2 supply power for the fuse box main insurance and high-current relay power supply, and the other row with the opposite wiring direction supplies power for four high-current electrical equipment Terminal 3-3 (as shown in FIG. 2 ) is connected to terminal 11 of the wiring harness to supply power for other high-current electrical equipment.

In the above solution, the bottom end of the fuse group 2 is fixedly connected with a bus bar 4, and the bus bar 4 includes a support plate 4-2 standing sideways on the bottom end of the fuse group 2 and fixedly connected with the fuse group. One end of the supporting plate 4-2 is connected with a connecting plate 4-3 perpendicular to the supporting plate 4-2, the top of the connecting plate 4-3 is connected with the power input terminal 4-1, the power input terminal 4- 1 is a flat plate perpendicular to the connecting plate, and two power connection holes 4-11 are arranged on the flat plate.

In the above scheme, as shown in Fig. 3, two power input terminal installation holes 1-1 and eight power output terminal installation holes 1-2 are provided on the engine room fuse box body 1, and eight power output terminal installation holes 1-2 Arranged in two rows, four in a row, the fuse box body 1 in the engine room is also provided with bus bar via holes 1-3.

In the above solution, as shown in Fig. 4 and Fig. 5, the power input terminal 4-1 and the two power input terminal installation holes 1-1 are fixedly connected at the power connection hole 4-11 through two first bolts 5, the first The bolt 5 is inserted into the installation hole 1-1 of the power input terminal, and is used to locate and fix the entire main power fuse 2 and its upper parts. The power input terminal 4-1 also passes through the power terminal 14 and the power line 10 connected to ensure the reliability of conduction; the eight power output terminals 3 are fixedly connected to the eight power output terminal mounting holes 1-2, among which, the four power supply terminals 3-3 of large-current electrical equipment are connected to a row of four power output terminals The installation holes 1-2 are connected by four second bolts 8, the power supply terminal 3-3 of the high-current electrical equipment is also connected with the wiring harness terminal 11, and the remaining four high-current relay power supply terminals 3-1 and the main insurance power supply terminal of the fuse box 3-2 is connected with the other row of four power output terminal mounting holes 1-2 through four mounting seats 6, and the four fastening screws 7 are fastened respectively, and the mounting seats 6 are connected to the fuse box body of the engine room through the bus bar 9 1 internal connection, the second bolt 8 and the power output terminal installation hole 1-2 and the installation seat 6 and the installation hole 1-2 are all interference fits, because the installation seat 6 and the engine room fuse box bus bar 9 are connected to the engine room fuse box The body 1 is internally fixed, so there is no need for bolt post positioning here, and the installation seat can be used; the entire bus bar 4 is installed in the bus bar through holes 1-3 of the fuse box body 1 in the engine room.

The installation process of the above-mentioned main fuse structure of the automobile power supply is as follows: when installing, first fix the mounting seat 6 and the fuse box bus bar 9 in the engine room fuse box body 1 in sequence, and then snap in the two first bolts 5 and the four fourth bolts. Two bolts 8, and then install the fuse group 2, through the first bolt 5 and the second bolt 8 for positioning, then let the terminals of the power line 10 and the harness terminal 11 pass through the first bolt 5 and the second bolt 8, and install the first Fasten the nut 12 and the second fastening nut 13, and make the fastening screw 7 go through the power output terminal 3, the fuse box bus bar 9 of the engine room and the through holes on the mounting seat 6 for fixing.

The utility model fixes the fuse group 2 on the fuse box body 1 of the engine room through two power terminal posts 14, which is convenient for disassembly and assembly, high in integration, and reduces the occupied space of the engine room; the four terminals of the utility model (large current relay power supply The terminal 3-1 and the fuse box main fuse power supply terminal 3-2) are directly connected to the interior of the engine room fuse box body 1, avoiding the setting of a power connection line between the two fuse boxes, the layout is reasonable, and the cost of the wiring harness is reduced.

Claims (9)

1. A total fuse structure for automobile power supply, comprising a fuse box body (1) in the engine room, characterized in that: it also includes a fuse group (2), and the top of the fuse group (2) is fixedly connected with some power output terminals (3), The bottom end of the fuse group (2) is fixedly connected with a bus bar (4), and one end of the bus bar (4) is provided with a power input terminal (4-1); the fuse box body (1) of the engine room is provided with a power supply The input terminal installation hole (1-1) and the power output terminal installation hole (1-2), the power input terminal (4-1) is fixedly connected with the power input terminal installation hole (1-1), the power supply The output terminal (3) is fixedly connected to the installation hole (1-2) of the power output terminal. 2. The main fuse structure for automobile power supply according to claim 1, characterized in that: the bus bar (4) includes a support plate standing sideways on the bottom end of the fuse group (2) and fixedly connected with the fuse group (4-2), one end of the supporting plate (4-2) is connected with a connecting plate (4-3) perpendicular to the supporting plate (4-2), and the top of the connecting plate (4-3) is connected There is said power input terminal (4-1). 3. The main fuse structure of automobile power supply according to claim 2, characterized in that: the power input terminal (4-1) is a flat plate perpendicular to the connecting plate, and a power connection hole (4-1) is arranged on the flat plate. 11). 4. The main fuse structure of automobile power supply according to claim 1, characterized in that: said power supply output terminal (3) includes a power supply terminal (3-3) of a large current electrical equipment, a power supply terminal (3-1) of a high current relay ) and the main insurance power supply terminal (3-2) of the fuse box connected to the inside of the fuse box body. 5. The main fuse structure of automobile power supply according to claim 4, characterized in that: said high current relay power supply terminal (3-1) and said fuse box total insurance power supply terminal (3-2) are connected with said high current The outlet direction of the power supply terminal (3-3) of the electrical equipment is opposite. 6. The main fuse structure of automobile power supply according to claim 1, characterized in that: the fuse box body (1) of the engine room is also provided with a bus bar via hole (1-3), and the bus bar (4) is installed in the bus bar via holes (1-3). 7. The main fuse structure of automobile power supply according to claim 1, characterized in that: a first bolt (5) is connected between the power input terminal (4-1) and the power input terminal installation hole (1-1) ). 8. The main fuse structure of automobile power supply according to claim 4, characterized in that: said high current relay power supply terminal (3-1) and said fuse box main insurance power supply terminal (3-2) are connected with said power output Mounting seats (6) and fastening screws (7) are connected between the terminal mounting holes (1-2). 9. The main fuse structure of the automobile power supply according to claim 4, characterized in that: a second fuse is connected between the power supply terminal (3-3) of the large-current electrical equipment and the installation hole (1-2) of the power output terminal. Two bolts (8).