JP7470549B2 - Power System - Google Patents

Description

The present invention relates to a power supply system.

One example of an invention for power supply within a vehicle is the power supply network disclosed in Patent Document 1. In a first embodiment, this power supply network has a configuration in which power is supplied from a battery in the rear of the vehicle to two fuse-relay blocks in the front, with power being supplied from the battery to one fuse-relay block via the other fuse-relay block, and in a second embodiment, power is supplied directly from the battery to each fuse-relay block.

JP 2003-137044 A

When an electrical device that requires a large current is driven in a power supply line, a voltage drop occurs in the power supply line. If a voltage drop occurs in the power supply line that supplies power, other electrical devices that receive power from the same power line cannot operate stably, and for example, in lights, problems such as reduced brightness, flickering, and blinking may occur.

The present invention has been made in consideration of the above, and aims to provide a technology that can stably supply power to other electrical equipment with a simple configuration, even if there is an electrical equipment through which a large current flows.

To solve the above-mentioned problems and achieve the object, a power supply system according to one embodiment of the present invention includes a first wiring path that supplies power supplied from a power supply to a first electrical component that requires a current equal to or greater than a predetermined current value among a plurality of electrical components of a vehicle, and a second wiring path that supplies power supplied from the power supply to a second electrical component that belongs to a rear lighting system of the vehicle among the plurality of electrical components.

The power supply system according to one aspect of the present invention is characterized in that it includes a distribution unit that is connected to the power supply and distributes the power supplied from the power supply to the first wiring path and the second wiring path.

The power supply system according to one aspect of the present invention is characterized in that the first wiring path runs from the distribution unit to the rear of the vehicle, and the second wiring path has a second right path that runs from the distribution unit through the right part of the vehicle to the right rear, and a second left path that runs from the distribution unit through the left part of the vehicle to the left rear.

The power supply system according to one aspect of the present invention is characterized in that the first wiring path includes a first right path that runs from the distribution unit through the right part of the vehicle to the right rear part, and a first left path that runs from the distribution unit through the left part of the vehicle to the left rear part, and the second wiring path includes a second right path that runs from the distribution unit through the right part of the vehicle to the right rear part, and a second left path that runs from the distribution unit through the left part of the vehicle to the left rear part.

The power supply system according to one aspect of the present invention is characterized in that the first wiring path has a first right path that runs from the distribution unit through the right part of the vehicle to the right rear part, and a first left path that runs from the distribution unit through the left part of the vehicle to the left rear part, and the second wiring path runs from the distribution unit to the center rear part of the vehicle.

The power supply system according to one aspect of the present invention is characterized in that the first wiring path runs from the distribution unit through either the right or left part of the vehicle to the right or left rear part of the vehicle, and the second wiring path runs from the distribution unit to the center rear part of the vehicle.

The power supply system according to one aspect of the present invention includes a distribution unit connected to the power supply and distributing the power supplied from the power supply to a first path leading to the right side of the vehicle and a second path leading to the left side of the vehicle, a first electrical connection box provided on the first path and supplying power to the electrical equipment, and a second electrical connection box provided on the second path and supplying power to the electrical equipment, the first wiring path including a path from the first electrical connection box or the second electrical connection box to the center rear of the vehicle, and the second wiring path including a path from the first electrical connection box to the right rear of the vehicle and a path from the second electrical connection box to the left rear of the vehicle.

The power supply system according to one aspect of the present invention includes a distribution unit connected to the power supply and distributing the power supplied from the power supply to a first path leading to the right part of the vehicle and a second path leading to the left part of the vehicle, a first electrical connection box provided on the first path and supplying power to the electrical equipment, and a second electrical connection box provided on the second path and supplying power to the electrical equipment, the first wiring path including a path from the first electrical connection box to the right rear part of the vehicle and a path from the second electrical connection box to the left rear part of the vehicle, and the second wiring path including a path from the first electrical connection box to the right rear part of the vehicle and a path from the second electrical connection box to the left rear part of the vehicle.

The power supply system according to one aspect of the present invention includes a distribution unit connected to the power supply and distributing the power supplied from the power supply to a first path leading to the right part of the vehicle and a second path leading to the left part of the vehicle, a first electrical connection box provided on the first path and supplying power to the electrical equipment, and a second electrical connection box provided on the second path and supplying power to the electrical equipment, the first wiring path including a path from the first electrical connection box to the right rear part of the vehicle and a path from the second electrical connection box to the left rear part of the vehicle, and the second wiring path leading from the first electrical connection box or the second electrical connection box to the central rear part of the vehicle.

The power supply system according to one aspect of the present invention includes a distribution unit connected to the power supply and distributing the power supplied from the power supply to a first path leading to the right part of the vehicle and a second path leading to the left part of the vehicle, a first electrical connection box provided on the first path and supplying power to the electrical equipment, and a second electrical connection box provided on the second path and supplying power to the electrical equipment, the first wiring path extending from the first electrical connection box to the right rear part of the vehicle or from the second electrical connection box to the left rear part of the vehicle, and the second wiring path extending from the first electrical connection box or the second electrical connection box to the central rear part of the vehicle.

The present invention has the advantage that, even if there is an electrical component through which a large current flows, it is possible to stably supply power to other electrical components with a simple configuration.

FIG. 1 is a diagram showing wiring of a power supply system according to a first embodiment. FIG. 2 is a plan view illustrating the wiring of the power supply system according to the first embodiment. FIG. 3 is a plan view illustrating a schematic arrangement of wiring in a modified example of the first embodiment. FIG. 4 is a plan view showing a schematic arrangement of wiring in the power supply system according to the second embodiment. FIG. 5 is a plan view showing a schematic arrangement of wiring in a power supply system according to the third embodiment. FIG. 6 is a plan view showing a schematic arrangement of wiring in a power supply system according to the fourth embodiment. FIG. 7 is a plan view showing a schematic arrangement of wiring in a power supply system according to a fifth embodiment. FIG. 8 is a plan view showing a schematic arrangement of wiring in a power supply system according to the sixth embodiment. FIG. 9 is a plan view showing a schematic arrangement of wiring in a power supply system according to the seventh embodiment. FIG. 10 is a plan view illustrating the wiring of the power supply system according to the eighth embodiment. FIG. 11 is a plan view showing a schematic arrangement of wiring in a power supply system according to a ninth embodiment. FIG. 12 is a plan view illustrating a wiring arrangement according to a modification of the ninth embodiment.

The following describes in detail an embodiment of the present invention with reference to the drawings. Note that the present invention is not limited to the embodiment described below. In addition, in the drawings, the same or corresponding elements are appropriately designated by the same reference numerals.

[First embodiment]
Fig. 1 is a diagram showing an example of wiring of a power supply system 1A according to a first embodiment of the present invention in a vehicle 2. Fig. 2 is a plan view showing a schematic diagram of wiring of the power supply system 1A in a vehicle 2. In the following description, the forward direction of the vehicle 2 is referred to as the front side, the backward direction of the vehicle 2 is referred to as the rear side, the right side when looking forward from the driver's seat is referred to as the right side, and the left side when looking forward from the driver's seat is referred to as the left side.

The power supply system 1A is a system that supplies power from a secondary battery BAT possessed by the vehicle 2 to multiple electrical components possessed by the vehicle 2. The power supply system 1A has a distribution unit FM, multiple electrical connection boxes, and multiple cables. The secondary battery BAT is a secondary battery that can be repeatedly charged and discharged. The voltage of the secondary battery BAT is, for example, 12V, and it is charged by an alternator (not shown) possessed by the vehicle 2 and supplies power to multiple electrical components. The position of the secondary battery BAT is not limited to the position shown in the figure, and it may be disposed in another position within the vehicle 2.

The electrical equipment to which power is supplied by the power supply system 1A includes, for example, lighting equipment such as headlamps, tail lamps, stop lamps, and turn lamps, equipment around the driver's seat such as a display device, car audio, and an instrument panel, equipment such as power windows, wipers, seat heaters, door locks, electric mirrors, rear defrosters, and rear wipers, actuators, ECUs (Electronic Control Units), and various sensors. Note that in order to prevent the drawing from becoming too complicated, illustration of a plurality of electrical equipment is omitted in FIG. 1. Similarly, in order to prevent the drawing from becoming too complicated, FIG. 2 illustrates electrical equipment 10 ₁ to 10 _n (n is an integer of 2 or more) and electrical equipment 20 ₁ to 20 _m (m is an integer of 2 or more), and omits illustration of other electrical equipment. In addition, in the vehicle 2, communication cables are arranged so that the ECU can communicate with various electrical equipment, but are omitted from illustration in order to prevent the drawing from becoming too complicated.

The power supply system 1A has multiple cables, namely, cable BW, cable RW, cable LW, cable RW1, cable LW1, cable RW11, and cable LW12. These cables are large-diameter cables for supplying power to each electrical component arranged in the vehicle 2. These cables may be, for example, flat electric wires in the form of twisted wires, flat electric wires, round electric wires, or combinations of these electric wires.

The distribution unit FM is connected to the secondary battery BAT via a cable BW. In addition, a cable RW and a cable LW are connected to the distribution unit FM. The cable RW is a cable for supplying power to an electrical junction box arranged on the right side of the vehicle 2, and the cable LW is a cable for supplying power to an electrical junction box arranged on the left side of the vehicle 2. Within the distribution unit FM, the cable RW is electrically connected to the cable BW, and the cable LW is electrically connected to the cable BW. It is preferable that the distribution unit FM is arranged in a position close to the secondary battery BAT.

The power supply system 1A has a number of electrical junction boxes, including electrical junction box FR, electrical junction box FL, electrical junction box MR, electrical junction box ML, electrical junction box CUR, and electrical junction box LP. These electrical junction boxes have terminals to which the aforementioned cables for supplying power are connected, terminals to which cables that connect electrical equipment to the electrical junction boxes and supply power to the electrical equipment are connected, a control unit that controls the power supply to the electrical equipment, a relay circuit, a fuse, a switching circuit, a smoothing circuit, etc. These electrical junction boxes may have a switch function that electrically connects or disconnects the connected cables.

The electrical junction box FR is located on the front right side of the vehicle 2, and is connected to the cable RW. The electrical junction box FR is electrically connected to electrical equipment located, for example, in the front of the vehicle 2, and supplies power supplied from the cable RW to the connected electrical equipment. In addition, the electrical junction box FR is connected to a cable RW1 located on the right side of the vehicle 2. Inside the electrical junction box FR, the cable RW and the cable RW1 are electrically connected.

The electrical connection box FL is located on the front left side of the vehicle 2, and is connected to the cable LW. The electrical connection box FL is electrically connected to electrical equipment located, for example, in the front of the vehicle 2, and supplies power supplied from the cable LW to the connected electrical equipment. In addition, the electrical connection box FL is connected to a cable LW1 located on the left side of the vehicle 2. Inside the electrical connection box FL, the cable LW and the cable LW1 are electrically connected.

The electrical junction box MR is located near the cowl on the right side of the vehicle 2, and is connected to the cable RW1. The electrical junction box MR is electrically connected to electrical equipment located, for example, near the cowl or between the front and rear of the vehicle 2, and supplies power supplied from the cable RW1 to the connected electrical equipment. In addition, the electrical junction box MR is connected to a cable RW11 located on the right side of the vehicle 2. Inside the electrical junction box MR, the cables RW1 and RW11 are electrically connected. The electrical junction box MR is an example of a first electrical junction box.

The electrical junction box ML is located near the cowl on the left side of the vehicle 2, and is connected to the cable LW1. The electrical junction box ML is electrically connected to electrical equipment located, for example, near the cowl or between the front and rear of the vehicle 2, and supplies power provided from the cable LW1 to the connected electrical equipment. In addition, the electrical junction box ML is connected to a cable LW12 located on the left side of the vehicle 2. Within the electrical junction box ML, the cables LW1 and LW12 are electrically connected. The electrical junction box ML is an example of a second electrical junction box.

The electrical junction box CUR is disposed on the right rear side of the vehicle 2, and is connected to a cable RW11. The electrical junction box CUR is electrically connected to n electrical components 10 ₁ to 10 _n disposed, for example, at the rear of the vehicle 2, via a cable EW1, and supplies power supplied from the cable RW11 to the connected electrical components 10 ₁ to 10 _n .

The electrical components 10 ₁ to 10 _n are examples of first electrical components that require a large current equal to or greater than a predetermined current value for operation, such as a rear defroster, a rear wiper, a rear washer, an actuator, etc. The predetermined current value is set according to, for example, the type of vehicle 2 and the number of electrical components included in the vehicle 2. Note that Fig. 2 is a diagram that shows the wiring diagrammatically, and therefore it should be noted that the actual positions of the electrical components 10 ₁ to 10 _n differ from the positions shown in Fig. 2.

The electric junction box LP is disposed on the left rear side of the vehicle 2, and is connected to a cable LW12. The electric junction box LP is electrically connected to m pieces of electric equipment 20 ₁ to 20 _m disposed, for example, at the rear of the vehicle 2, via a cable EW2, and supplies power supplied from the cable LW12 to the connected electric equipment 20 ₁ to 20 _m .

The electrical components 20 ₁ to 20 _m are examples of second electrical components that are lighting systems, such as turn signal lamps, brake lamps, tail lamps, back lamps, license plate lamps, etc. Note that Fig. 2 is a diagram showing the wiring diagrammatically, and therefore the actual positions of the electrical components 20 ₁ to 20 _m may differ from the positions shown in Fig. 2. It is preferable that the lengths of the cables from the electrical junction box LP to each of the electrical components 20 ₁ to 20 _m are the same or have a small difference in length.

The power supply system 1A supplies power to the electrical components 10 ₁ to 10 _n that require a large current to operate from the secondary battery BAT via a cable BW and a distribution box FM, and further via a cable RW, an electrical junction box FR, a cable RW1, an electrical junction box MR, a cable RW11, and an electrical junction box CUR that are arranged on the right side of the vehicle 2. The cable RW, the electrical junction box FR, the cable RW1, the electrical junction box MR, the cable RW11, and the electrical junction box CUR are an example of a first wiring path that supplies power to the first electrical components.

Furthermore, the power supply system 1A supplies power to the electrical components _20-1 to 20- _m , which are the electrical components of the lighting system, from the secondary battery BAT via a cable BW and a distribution box FM, and further via a cable LW, an electrical junction box FL, a cable LW1, an electrical junction box ML, a cable LW12, and an electrical junction box LP that are arranged on the left side of the vehicle 2. The cable LW, the electrical junction box FL, the cable LW1, the electrical junction box ML, the cable LW12, and the electrical junction box LP are an example of a second wiring path that supplies power to the second electrical components.

For example, in a configuration in which power is supplied from a secondary battery BAT in the front of the vehicle 2 to electrical equipment 10 ₁ to electrical equipment 10 _n (first electrical equipment) and electrical equipment 20 ₁ to electrical equipment 20 _m (second electrical equipment) in the rear of the vehicle 2 via the same cable, when the first electrical equipment is driven and a large current flows, a voltage drop occurs, and in the second electrical equipment of the lighting system, phenomena such as a decrease in lamp brightness, flickering, or blinking may occur.

In contrast, in the power supply system 1A, the wiring path for supplying power to the electrical components in the rear of the vehicle 2 is divided into a first wiring path for supplying power to the electrical components 10 ₁ to 10 _n (first electrical components) and a second wiring path for supplying power to the electrical components 20 ₁ to 20 _m (second electrical components). Therefore, even if a voltage drop occurs in the first wiring path due to the first electrical component being driven, the voltage drop in the second wiring path, which is separate from the first wiring path, is suppressed, so that power can be stably supplied to the second electrical component and phenomena such as a decrease in brightness, flickering, and blinking can be suppressed for the second electrical component of the lighting system.

In addition, in the power supply system 1A, the positions of the electrical connection box CUR and the electrical connection box LP may be interchanged, and the electrical connection box CUR may be connected to the electrical connection box ML by a cable to supply power from the electrical connection box ML to the electrical connection box CUR, and the electrical connection box LP may be connected to the electrical connection box MR by a cable to supply power from the electrical connection box MR to the electrical connection box LP.

In the power supply system 1A, the electric junction box LP may be disposed at the center in the left-right direction at the rear of the vehicle 2 as shown in Fig. 3. Fig. 3 is a plan view showing the wiring in a modified example of the power supply system 1A. According to the configuration shown in Fig. 3, even if the length of the cable from the electric junction box LP to each of the electrical components 20 ₁ to 20 _m is minimized, for example, the difference between the length of the cable from the electric junction box LP to the brake lamp on the right side of the vehicle 2, which is the second electrical component of the lighting system, and the length of the cable from the electric junction box LP to the brake lamp on the left side of the vehicle 2, which is the second electrical component of the lighting system, can be shortened, and the difference in brightness between the left and right brake lamps can be reduced.

[Second embodiment]
Next, a second embodiment of the present invention will be described. FIG. 4 is a plan view showing the wiring of the power supply system 1B according to the second embodiment in the vehicle 2. The second embodiment differs from the first embodiment in the wiring for supplying power to the first electrical component and the wiring for supplying power to the second electrical component. Therefore, in the following description, the same components as those in the first embodiment are denoted by the same reference numerals and description is omitted, and differences from the first embodiment will be described. Note that FIG. 4 is a diagram showing the wiring diagram, and therefore the actual positions of the electrical components 10 ₁ to 10 _n and the electrical components 20 ₁ to 20 _m are different from the positions shown in FIG. 4.

The power supply system 1B has a cable LW2 and a cable RW12 instead of the cable RW11. The power supply system 1B also has an electrical connection box LLP and an electrical connection box RLP as electrical connection boxes for supplying power to the second electrical component.

Cable LW2 is connected to the distribution unit FM. Within the distribution unit FM, cable BW and cable LW2 are electrically connected.

The electrical junction box CUR is located in the left-right center at the rear of the vehicle 2, and the electrical junction box CUR, to which the cable LW2 is connected, supplies power from the cable LW2 to the connected electrical components _10-1 to 10 _-n .

The electric junction box LLP is disposed on the left rear part of the vehicle 2, and is connected to a cable LW12. The electric junction box LLP is electrically connected to, for example, electric components _20-1 and 20-2, which are _second electric components of a lighting system disposed on the left rear part of the vehicle 2, by a cable EW21, and supplies power supplied from the cable LW12 to the connected electric components _20-1 and _20-2 .

The electrical connection box MR is connected to a cable RW12 arranged on the right side of the vehicle 2. Inside the electrical connection box MR, the cables RW1 and RW12 are electrically connected.

The electric junction box RLP is disposed on the right rear part of the vehicle 2, and is connected to a cable RW12. The electric junction box RLP is electrically connected to, for example, an electric component 20 _m-1 or an electric component 20 _m , which is a second electric component of a lighting system disposed on the right rear part of the vehicle 2, via a cable EW22, and supplies power supplied from the cable RW12 to the connected electric components 20 _m-1 and 20 _m .

The power supply system 1B supplies power to a first electrical component located at the rear of the vehicle 2 from the secondary battery BAT via a cable BW and a distribution box FM, and further via a cable LW2 and an electrical junction box CUR. The cable LW2 and the electrical junction box CUR are an example of a first wiring path that supplies power to the first electrical component.

The power supply system 1B supplies power to the second electrical equipment located on the left rear part of the vehicle 2 from the secondary battery BAT via the cable BW and the distribution box FM, and further via the cable LW, the electrical connection box FL, the cable LW1, the electrical connection box ML, the cable LW12, and the electrical connection box LLP, which are arranged on the left side of the vehicle 2. The cable LW, the electrical connection box FL, the cable LW1, the electrical connection box ML, the cable LW12, and the electrical connection box LLP are an example of a second wiring path that supplies power to the second electrical equipment, and are an example of a second left path. The power supply system 1B supplies power to the second electrical equipment located on the right rear part of the vehicle 2 from the secondary battery BAT via the cable BW and the distribution box FM, and further via the cable RW, the electrical connection box FR, the cable RW1, the electrical connection box MR, the cable RW12, and the electrical connection box RLP, which are arranged on the right side of the vehicle 2. Cable RW, electrical connection box FR, cable RW1, electrical connection box MR, cable RW12, and electrical connection box RLP are an example of a second wiring path that supplies power to the second electrical component, and are an example of a second right path.

In power supply system 1B, the wiring path that supplies power to the electrical equipment in the rear of vehicle 2 is also divided into a first wiring path that supplies power to the first electrical equipment, and a second wiring path that supplies power to the second electrical equipment. Therefore, even if a voltage drop occurs in the first wiring path due to the first electrical equipment being driven, the voltage drop in the second wiring path, which is separate from the first wiring path, is suppressed, power is supplied stably to the second electrical equipment, and phenomena such as reduced brightness, flickering, and blinking can be suppressed for the second electrical equipment of the lighting system.

In addition, in the power supply system 1B, as shown by the dashed line in FIG. 4, the distribution unit FM and the electrical connection box CUR may be connected by a cable RW2 arranged on the right side of the vehicle 2, and the electrical connection box CUR may supply the power supplied from the cable RW2 to the connected first electrical component. In addition, in the power supply system 1B, the electrical connection box CUR may be arranged on the rear right side of the vehicle 2 or the rear left side of the vehicle 2.

[Third embodiment]
Next, a third embodiment of the present invention will be described. FIG. 5 is a plan view showing the wiring of the power supply system 1C according to the third embodiment in the vehicle 2. The third embodiment differs from the first and second embodiments in the wiring for supplying power to the first and second electrical components. Therefore, in the following description, the same components as those in the first and second embodiments are denoted by the same reference numerals and are not described, and only the characteristic features of the third embodiment will be described. Note that FIG. 5 is a diagram showing the wiring diagram, and therefore the actual positions of the electrical components 10 ₁ to 10 _n and the electrical components 20 ₁ to 20 _m are different from the positions shown in FIG. 5.

Power supply system 1C differs from power supply system 1B in that it has cable RW2. Also, power supply system 1C differs from power supply system 1B in that it has electrical connection box LCUR and electrical connection box RCUR instead of electrical connection box CUR as electrical connection boxes for supplying power to the first electrical component.

Cable RW2 is connected to the distribution unit FM. Within the distribution unit FM, cable BW and cable RW2 are electrically connected.

The electric junction box LCUR is disposed on the left rear part of the vehicle 2, and is connected to a cable LW2. The electric junction box LCUR is electrically connected to, for example, electric components _10-1 and _10-2 , which are first electric components disposed on the left rear part of the vehicle 2, by a cable EW11, and supplies power supplied from the cable LW2 to the connected electric components _10-1 and _10-2 . The cable LW2 is an example of a first left path.

The electric junction box RCUR is disposed on the right rear side of the vehicle 2, and is connected to a cable RW2. The electric junction box RCUR is electrically connected to, for example, the electric component 10 _n-1 or the electric component 10 _n , which is a first electric component disposed on the right rear side of the vehicle 2, via a cable EW12, and supplies power supplied from the cable RW2 to the connected electric components 10 _n-1 or 10 _n . The cable RW2 is an example of a first right path.

The power supply system 1C supplies power to the second electrical equipment via the same second wiring path as the power supply system 1B. The power supply system 1C also supplies power to the first electrical equipment connected to the electrical junction box LCUR from the secondary battery BAT via cable BW and distribution box FM, and further via cable LW2 and electrical junction box LCUR. Cable LW2 and electrical junction box LCUR are an example of a first wiring path that supplies power to the first electrical equipment. The power supply system 1C also supplies power to the first electrical equipment connected to the electrical junction box RCUR from the secondary battery BAT via cable BW and distribution box FM, and further via cable RW2 and electrical junction box RCUR. Cable RW2 and electrical junction box RCUR are an example of a first wiring path that supplies power to the first electrical equipment.

In the power supply system 1C, the wiring path that supplies power to the electrical equipment in the rear of the vehicle 2 is also divided into a first wiring path that supplies power to the first electrical equipment, and a second wiring path that supplies power to the second electrical equipment. Therefore, even if a voltage drop occurs in the first wiring path due to the first electrical equipment being driven, the voltage drop in the second wiring path, which is separate from the first wiring path, is suppressed, power is supplied stably to the second electrical equipment, and phenomena such as reduced brightness, flickering, and blinking can be suppressed for the second electrical equipment of the lighting system.

In addition, in power supply system 1C, there are two first wiring paths that supply power to the first electrical equipment in the rear of vehicle 2. This makes it possible to reduce the diameter of the cable that constitutes the first wiring path compared to power supply system 1A and power supply system 1B, which supply power to the first electrical equipment in the rear of vehicle 2 through a single first wiring path. By reducing the diameter of the cable, the degree of freedom in wiring can be increased.

[Fourth embodiment]
Next, a fourth embodiment of the present invention will be described. FIG. 6 is a plan view showing the wiring of the power supply system 1D according to the fourth embodiment in the vehicle 2. The fourth embodiment differs from the first to third embodiments in the wiring for supplying power to the first electrical component and the wiring for supplying power to the second electrical component. Therefore, in the following description, the same components as those in the first to third embodiments are denoted by the same reference numerals and will not be described, and only the characteristic points of the fourth embodiment will be described. Note that FIG. 6 is a diagram showing the wiring diagram, and therefore the actual positions of the electrical components 10 ₁ to 10 _n and the electrical components 20 ₁ to 20 _m are different from the positions shown in FIG. 6.

Compared to power supply system 1B, power supply system 1D has cable LW11 instead of cable LW2. Cable LW11 is connected to an electrical junction box ML. Inside the electrical junction box ML, cables LW1 and LW11 are electrically connected. In power supply system 1D, the path of cable RW, electrical junction box FR, and cable RW1 is an example of a first path, and the path of cable LW, electrical junction box FL, and cable LW1 is an example of a second path.

The electric junction box CUR is disposed at the center in the left-right direction at the rear of the vehicle 2, and is connected to a cable LW11. The electric junction box CUR is electrically connected to the electric components 10 ₁ to 10 _n , which are the first electric components, by a cable EW1, and supplies power supplied from the cable LW11 to the connected electric components 10 ₁ to 10 _n .

The power supply system 1D supplies power to the first electrical equipment from the secondary battery BAT via cable BW and distribution box FM, and further via cable LW1, electrical connection box ML, cable LW11, and electrical connection box CUR. Cable LW, electrical connection box FL, cable LW1, electrical connection box ML, cable LW11, and electrical connection box CUR are an example of a first wiring path that supplies power to the first electrical equipment. Furthermore, the power supply system 1D supplies power to the second electrical equipment via the same path as the power supply system 1B.

In the power supply system 1D, the power supply path downstream of the electrical connection box ML is divided into a first wiring path that supplies power to a first electrical component located at the rear of the vehicle 2, and a second wiring path that supplies power to a second electrical component of the lighting system located at the rear of the vehicle 2.

Therefore, even if a voltage drop occurs in the cable LW11, which is the first wiring path, due to the operation of the first electrical component, the voltage drop in the cable LW12, which is the second wiring path separate from the first wiring path, is suppressed, power is supplied to the second electrical component stably, and phenomena such as reduced brightness, flickering, and blinking can be suppressed for the second electrical component of the lighting system.

In addition, compared to power supply system 1B, which connects distribution unit FM and electrical connection box CUR with cable LW2, power supply system 1D connects electrical connection box CUR to electrical connection box ML, which is closer to distribution unit FM, so the length of the cable supplying power to electrical connection box CUR can be shortened and the weight of the entire cable can be reduced.

6, the power supply system 1D may be configured such that the electric junction box MR and the electric junction box CUR are connected by a cable RW11 arranged on the right side of the vehicle 2, and the electric junction box CUR supplies the power supplied from the cable RW11 to the connected electric components _10-1 to 10 _-n . Also, in the power supply system 1D, the connection destination of the cable supplying power to the electric junction box CUR may be the electric junction box FL that is closer to the battery BAT than the electric junction box ML, or the electric junction box FR that is closer to the battery BAT than the electric junction box MR.

[Fifth embodiment]
Next, a fifth embodiment of the present invention will be described. FIG. 7 is a plan view showing the wiring of the power supply system 1E according to the fifth embodiment in the vehicle 2. The fifth embodiment differs from the first to fourth embodiments in the wiring for supplying power to the first electrical component and the wiring for supplying power to the second electrical component. Therefore, in the following description, the same components as those in the first to fourth embodiments are denoted by the same reference numerals and description is omitted, and only the characteristic points of the fifth embodiment will be described. Note that FIG. 7 is a diagram showing the wiring diagram, and therefore the actual positions of the electrical components 10 ₁ to 10 _n and the electrical components 20 ₁ to 20 _m are different from the positions shown in FIG. 7.

Compared to power supply system 1C, power supply system 1E has cable RW11 instead of cable RW2, and cable LW11 instead of cable LW2. Cable LW11 is connected to an electrical junction box ML. Inside the electrical junction box ML, cables LW1 and LW11 are electrically connected. Cable RW11 is also connected to an electrical junction box MR. Inside the electrical junction box MR, cables RW1 and RW11 are electrically connected.

The electric junction box LCUR is connected to the cable LW11, and supplies the power supplied from the cable LW11 to the first electric components connected thereto, such as the electric components _10-1 and _10-2 . The electric junction box RCUR is connected to the cable RW11, and supplies the power supplied from the cable RW11 to the first electric components connected thereto, such as the electric components _10-1 and 10 _-n . The cable LW11 is an example of the first left path, and the cable RW11 is an example of the first right path.

The power supply system 1E supplies power to the second electrical equipment through the same second wiring path as in the second embodiment. The power supply system 1E also supplies power to the first electrical equipment connected to the electrical connection box LCUR from the secondary battery BAT via the cable BW and the distribution box FM, and further via the cable LW, the electrical connection box FL, the cable LW1, the electrical connection box ML, the cable LW11, and the electrical connection box LCUR. The cable LW, the electrical connection box FL, the cable LW1, the electrical connection box ML, the cable LW11, and the electrical connection box LCUR are an example of a first wiring path that supplies power to the first electrical equipment. The power supply system 1E also supplies power to the first electrical equipment connected to the electrical connection box RCUR from the secondary battery BAT via the cable BW and the distribution box FM, and further via the cable RW, the electrical connection box FR, the cable RW1, the electrical connection box MR, the cable RW11, and the electrical connection box RCUR. Cable RW, electrical connection box FR, cable RW1, electrical connection box MR, cable RW11, and electrical connection box RCUR are an example of a first wiring path that supplies power to the first electrical component.

In the power supply system 1E, the power supply path downstream of the electrical connection box ML is divided into a first wiring path that supplies power to a first electrical component located in the rear of the vehicle 2, and a second wiring path that supplies power to a second electrical component located in the rear of the vehicle 2. In addition, in the power supply system 1E, the power supply path downstream of the electrical connection box MR is divided into a first wiring path that supplies power to a first electrical component located in the rear of the vehicle 2, and a second wiring path that supplies power to a second electrical component located in the rear of the vehicle 2.

Therefore, in the power supply system 1E, even if a voltage drop occurs in the first wiring path due to the operation of the first electrical component, the voltage drop in the second wiring path, which is separate from the first wiring path, is suppressed, power is supplied stably to the second electrical component, and phenomena such as reduced brightness, flickering, and blinking can be suppressed for the second electrical component of the lighting system.

In addition, in the power supply system 1E, there are two first wiring paths that supply power to the first electrical equipment located at the rear of the vehicle 2. This makes it possible to reduce the diameter of the cable that constitutes the first wiring path compared to the first and second embodiments in which power is supplied to the first electrical equipment located at the rear of the vehicle 2 through a single first wiring path. By reducing the diameter of the cable, the degree of freedom in wiring can be increased.

In the power supply system 1E, the connection destination of the cable that supplies power to the electrical connection box RCUR may be the electrical connection box FR, which is closer to the battery BAT than the electrical connection box MR, and the connection destination of the cable that supplies power to the electrical connection box LCUR may be the electrical connection box FL, which is closer to the battery BAT than the electrical connection box ML.

Sixth Embodiment
Next, a sixth embodiment of the present invention will be described. FIG. 8 is a plan view showing the wiring of the power supply system 1F according to the sixth embodiment in the vehicle 2. The sixth embodiment differs from the first to fifth embodiments in the wiring for supplying power to the first electrical component and the wiring for supplying power to the second electrical component. Therefore, in the following description, the same components as those in the first to fifth embodiments are denoted by the same reference numerals and are not described, and only the characteristic features of the sixth embodiment will be described. Note that FIG. 8 is a diagram showing the wiring diagram, and therefore the actual positions of the electrical components 10 ₁ to 10 _n and the electrical components 20 ₁ to 20 _m are different from the positions shown in FIG. 8.

Power supply system 1F differs from power supply system 1E in that it has an electrical connection box LP instead of the electrical connection box LLP and the electrical connection box RLP.

The electric junction box LP is disposed at the center in the left-right direction at the rear of the vehicle 2, and is connected to a cable LW2. The electric components _20-1 to 20- _m are electrically connected to the electric junction box LP via the cable EW2. The electric junction box LP supplies power supplied from the cable LW2 to the connected electric components _20-1 to 20- _m .

The power supply system 1F supplies power to the first electrical component via the same first wiring path as the power supply system 1E. The power supply system 1F also supplies power to the lighting electrical components 20 ₁ to 20 _m from the secondary battery BAT via a cable BW and a distribution box FM, and further via a cable LW2 and an electrical junction box LP. The cable LW2 and the electrical junction box LP are an example of a second wiring path that supplies power to the second electrical component.

In the power supply system 1E, the wiring path that supplies power to the electrical equipment in the rear of the vehicle 2 is also divided into a first wiring path that supplies power to a first electrical equipment, and a second wiring path that supplies power to a second electrical equipment of the lighting system. Therefore, even if a voltage drop occurs in the first wiring path due to the first electrical equipment being driven, the voltage drop in the second wiring path, which is separate from the first wiring path, is suppressed, power is supplied stably to the second electrical equipment, and phenomena such as reduced brightness, flickering, and blinking can be suppressed for the second electrical equipment of the lighting system.

[Seventh embodiment]
Next, a seventh embodiment of the present invention will be described. FIG. 9 is a plan view showing the wiring of the power supply system 1G according to the seventh embodiment in the vehicle 2. The seventh embodiment differs from the first to sixth embodiments in the wiring for supplying power to the first electrical component and the wiring for supplying power to the second electrical component. Therefore, in the following description, the same components in the seventh embodiment as those in the first to sixth embodiments are given the same reference numerals and are not described, and the following description focuses on the characteristic features of the seventh embodiment. Note that FIG. 9 is a diagram showing the wiring diagram, and therefore the actual positions of the electrical components 10 ₁ to 10 _n and the electrical components 20 ₁ to 20 _m are different from the positions shown in FIG. 9.

Compared to the power supply system 1A of the first embodiment, the power supply system 1G differs in that the cable connected to the electrical connection box LP is cable LW2, and in that cable LW12 is not connected to the electrical connection box ML.

The electric junction box LP is disposed at the center in the left-right direction at the rear of the vehicle 2, and supplies electric power supplied from the cable LW2 to the connected electric components 20 ₁ to 20 _m .

The power supply system 1G supplies power to a first electrical component located at the rear of the vehicle 2 via the same first wiring path as the power supply system 1A. The power supply system 1G also supplies power to a second electrical component of the lighting system located at the rear of the vehicle 2 from the secondary battery BAT via a cable BW and a distribution box FM, and further via a cable LW2 and an electrical junction box LP. The cable LW2 and the electrical junction box LP are an example of a second wiring path that supplies power to the second electrical component.

In the power supply system 1G, the wiring path that supplies power to the electrical equipment in the rear of the vehicle 2 is also divided into a first wiring path that supplies power to a first electrical equipment, and a second wiring path that supplies power to a second electrical equipment of the lighting system. Therefore, even if a voltage drop occurs in the first wiring path due to the first electrical equipment being driven, the voltage drop in the second wiring path, which is separate from the first wiring path, is suppressed, power is supplied stably to the second electrical equipment, and phenomena such as reduced brightness, flickering, and blinking can be suppressed for the second electrical equipment of the lighting system.

In the power supply system 1G, instead of the cable LW2, a cable RW2 that passes through the right side of the vehicle 2 may be used to connect the distribution unit FM and the electrical junction box LP, and power may be supplied to the electrical junction box LP via the cable RW2. Also, in the power supply system 1G, an electrical junction box CUR may be disposed on the left rear side of the vehicle 2, and the electrical junction box ML and the electrical junction box CUR may be connected by a cable LW11, and power may be supplied from the electrical junction box ML to the electrical junction box CUR via the cable LW11.

[Eighth embodiment]
Next, an eighth embodiment of the present invention will be described. FIG. 10 is a plan view showing the wiring of a power supply system 1H according to the eighth embodiment in a vehicle 2. The eighth embodiment differs from the first to seventh embodiments in the wiring for supplying power to the first electrical component and the wiring for supplying power to the second electrical component. Therefore, in the following description, the same components as those in the first to seventh embodiments are denoted by the same reference numerals and description is omitted, and only the characteristic points of the eighth embodiment will be described. Note that FIG. 10 is a diagram showing the wiring diagram, and therefore the actual positions of the electrical components 10 ₁ to 10 _n and the electrical components 20 ₁ to 20 _m are different from the positions shown in FIG. 10.

Compared to power supply system 1E, power supply system 1H differs in that it has an electrical connection box LP instead of the electrical connection box LLP and the electrical connection box RLP, and that the electrical connection box LP is connected to the electrical connection box ML by a cable LW12.

The electric junction box LP is disposed at the center in the left-right direction at the rear of the vehicle 2, and supplies power supplied from the cable LW12 to the connected second electric components, ie, electric components 20 ₁ to 20 _m .

Power supply system 1H supplies power to a first electrical component located in the rear of vehicle 2 via the same first wiring path as power supply system 1E. Power supply system 1H also supplies power to lighting electrical components 20 ₁ to 20 _m located in the rear of vehicle 2 from secondary battery BAT via cable BW and distribution box FM, and further via cable LW, electrical junction box FL, cable LW1, electrical junction box ML, cable LW12, and electrical junction box LP. Cable LW, electrical junction box FL, cable LW1, electrical junction box ML, cable LW12, and electrical junction box LP are an example of a second wiring path that supplies power to a second electrical component.

In power supply system 1H, the wiring path that supplies power to the electrical equipment in the rear of vehicle 2 is also divided into a first wiring path that supplies power to a first electrical equipment, and a second wiring path that supplies power to a second electrical equipment of the lighting system. Therefore, even if a voltage drop occurs in the first wiring path due to the first electrical equipment being driven, the voltage drop in the second wiring path, which is separate from the first wiring path, is suppressed, power is supplied stably to the second electrical equipment, and phenomena such as reduced brightness, flickering, and blinking can be suppressed for the second electrical equipment of the lighting system.

In the power supply system 1H, the electrical connection box MR and the electrical connection box LP may be connected to each other by a cable RW12 connected to the electrical connection box MR instead of the cable LW12, and power may be supplied to the electrical connection box LP via the cable RW12.

[Ninth embodiment]
Next, a ninth embodiment of the present invention will be described. FIG. 11 is a plan view showing the wiring of the power supply system 1J according to the ninth embodiment in the vehicle 2. The ninth embodiment differs from the first to eighth embodiments in the wiring for supplying power to the first electrical component and the wiring for supplying power to the second electrical component. Therefore, in the following description, the same components in the ninth embodiment as those in the first to eighth embodiments are given the same reference numerals and are not described, and the following description focuses on the characteristic features of the ninth embodiment. Note that FIG. 11 is a diagram showing the wiring diagram, and therefore the actual positions of the electrical components 10 ₁ to 10 _n and the electrical components 20 ₁ to 20 _m are different from the positions shown in FIG. 11.

3, the power supply system 1J differs in that it does not have a cable RW11, and an electric junction box CUR is connected to an electric junction box ML by a cable LW11. The electric junction box CUR is disposed on the left rear side of the vehicle 2, and supplies power provided from the cable LW11 to the connected electrical components _10-1 to 10 _-n .

The power supply system 1J supplies power to the first electrical components, ie, electrical components _10-1 to 10 _-n , from the secondary battery BAT via a cable BW and a distribution box FM, and further via a cable LW, an electrical connection box FL, a cable LW1, an electrical connection box ML, a cable LW11, and an electrical connection box CUR. The cable LW, the electrical connection box FL, the cable LW1, the electrical connection box ML, the cable LW11, and the electrical connection box CUR are an example of a first wiring path for supplying power to the first electrical components. In the power supply system 1J, power is supplied to the second electrical components, ie, electrical components _20-1 to 20- _m of the lighting system, via the same second wiring path as the power supply system 1H.

In the power supply system 1J, the wiring path that supplies power to the electrical equipment in the rear of the vehicle 2 is also divided into a first wiring path that supplies power to a first electrical equipment, and a second wiring path that supplies power to a second electrical equipment of the lighting system. Therefore, even if a voltage drop occurs in the first wiring path due to the first electrical equipment being driven, the voltage drop in the second wiring path, which is separate from the first wiring path, is suppressed, power is supplied stably to the second electrical equipment, and phenomena such as reduced brightness, flickering, and blinking can be suppressed for the second electrical equipment of the lighting system.

The configuration in which the electrical junction box CUR and the electrical junction box LP are connected to the same electrical junction box may be as shown in FIG. 12. FIG. 12 is a plan view showing the wiring in a modified example of the power supply system 1J. As shown in FIG. 12, the electrical junction box CUR may be disposed on the right rear side of the vehicle 2, and power may be supplied from the electrical junction box MR to the electrical junction box CUR via a cable RW11, and power may be supplied from the electrical junction box MR to the electrical junction box LP via a cable RW12.

[Modification]
Although the embodiment of the present invention has been described above, the present invention is not limited to the above-mentioned embodiment and can be implemented in various other forms. For example, the above-mentioned embodiment may be modified as follows to implement the present invention. The above-mentioned embodiment and the following modifications may be combined with each other. The present invention also includes configurations in which the components of the above-mentioned embodiments and modifications are appropriately combined. Further effects and modifications can be easily derived by those skilled in the art. Therefore, the broader aspects of the present invention are not limited to the above-mentioned embodiment and modifications, and various modifications are possible.

The voltage of the secondary battery BAT is not limited to 12 V, and may be, for example, 48 V. When the voltage of the secondary battery BAT is 48 V, the diameter of each cable supplying power can be made thinner than when the voltage of the secondary battery BAT is 12 V.

The electrical connection box CUR, electrical connection box LCUR, and electrical connection box RCUR may be configured to supply power to electrical equipment other than electrical equipment that requires a large current of a predetermined value or more to operate, for example, they may be configured to supply power to optional equipment such as an electric sunshade, a power seat, or a heated rear seat.

The electrical connection box LP, the electrical connection box LLP, and the electrical connection box RLP may be configured to supply power to electrical equipment other than the lighting electrical equipment, for example, to various sensors and electrical equipment related to safety equipment located at the rear of the vehicle 2.

In a configuration in which power is supplied to the first electrical component by the electrical connection box LCUR and the electrical connection box RCUR, the first electrical component may be connected to either the electrical connection box LCUR or the electrical connection box RCUR, whichever is easier to route the connecting cable between.

In addition, in a configuration in which power is supplied to the first electrical equipment by the electrical connection box LCUR and the electrical connection box RCUR, the first electrical equipment may be connected to these electrical connection boxes so that the difference between the number of first electrical equipment to which the electrical connection box LCUR supplies power and the number of first electrical equipment to which the electrical connection box RCUR supplies power is small.

In addition, in a configuration in which power is supplied to the first electrical component via the electrical connection LCUR and the electrical connection box RCUR, the first electrical component may be connected to an electrical connection box that corresponds to the rated current of the first electrical component. For example, a first electrical component whose rated current is equal to or greater than a predetermined value may be connected to the electrical connection box LCUR, and a first electrical component whose rated current is less than the predetermined value may be connected to the electrical connection box RCUR.

In the above-described embodiment, the electrical connection box CUR, the electrical connection box LCUR, and the electrical connection box RCUR are configured to supply power to the first electrical component, and the electrical connection box LP, the electrical connection box LLP, and the electrical connection box RLP are configured to supply power to the second electrical component, but each electrical component may be connected to an electrical connection box according to its function. For example, electrical components related to safety equipment such as tail lamps, radar devices, cameras, and air pressure sensors may be connected to the electrical connection box LP, the electrical connection box LLP, or the electrical connection box RLP, while electrical lamps other than tail lamps, electrical components requiring a large current above a predetermined current value, and electrical components related to optional equipment may be connected to the electrical connection box CUR, the electrical connection box LCUR, or the electrical connection box RCUR.

1A, 1B, 1C, 1D, 1E, 1F, 1G, 1H, 1J Power supply system 2 Vehicle 10 ₁ to 10 _n electrical equipment 20 ₁ to 20 _m electrical equipment BAT Secondary battery FM Distribution section FR, FL, MR, ML Electrical junction box CUR, LCUR, RCUR Electrical junction box LP, LLP, RLP Electrical junction box BW, RW, LW Cable RW1, RW2, RW11, RW12 Cable LW1, LW2, LW11, LW12 Cable

Claims (8)

a first wiring path that supplies electric power supplied from a power source to a first electrical component that requires a current equal to or greater than a predetermined current value among a plurality of electrical components included in the vehicle;
a second wiring path that supplies the power supplied from the power source to at least a second electrical component belonging to a lighting system in a rear portion of the vehicle among the plurality of electrical components, and does not supply the power to the first electrical component;
a distribution unit connected to the power source and distributing power supplied from the power source to the first wiring path and the second wiring path;
Equipped with
The first wiring path extends from the distribution unit to a rear portion of the vehicle,
The second wiring path includes a second right path that passes through a right part of the vehicle from the distribution unit to a right rear part, and a second left path that passes through a left part of the vehicle from the distribution unit to a left rear part.
Power supply system. a first wiring path that supplies electric power supplied from a power source to a first electrical component that requires a current equal to or greater than a predetermined current value among a plurality of electrical components included in the vehicle;
a second wiring path that supplies the power supplied from the power source to at least a second electrical component belonging to a rear lighting system of the vehicle among the plurality of electrical components, and does not supply the power to the first electrical component;
a distribution unit connected to the power source and distributing power supplied from the power source to the first wiring path and the second wiring path;
Equipped with
the first wiring path includes a first right path extending from the distribution unit through a right portion of the vehicle to a right rear portion, and a first left path extending from the distribution unit through a left portion of the vehicle to a left rear portion,
The second wiring path includes a second right path that passes through a right part of the vehicle from the distribution unit to a right rear part, and a second left path that passes through a left part of the vehicle from the distribution unit to a left rear part.
Power supply system. a first wiring path that supplies electric power supplied from a power source to a first electrical component that requires a current equal to or greater than a predetermined current value among a plurality of electrical components included in the vehicle;
a second wiring path that supplies the power supplied from the power source to at least a second electrical component belonging to a rear lighting system of the vehicle among the plurality of electrical components, and does not supply the power to the first electrical component;
a distribution unit connected to the power source and distributing power supplied from the power source to the first wiring path and the second wiring path;
Equipped with
the first wiring path includes a first right path extending from the distribution unit through a right portion of the vehicle to a right rear portion, and a first left path extending from the distribution unit through a left portion of the vehicle to a left rear portion,
The second wiring path extends from the distribution section to a central rear portion of the vehicle.
Power supply system. a first wiring path that supplies electric power supplied from a power source to a first electrical component that requires a current equal to or greater than a predetermined current value among a plurality of electrical components included in the vehicle;
a second wiring path that supplies the power supplied from the power source to at least a second electrical component belonging to a rear lighting system of the vehicle among the plurality of electrical components, and does not supply the power to the first electrical component;
a distribution unit connected to the power source and distributing power supplied from the power source to the first wiring path and the second wiring path;
Equipped with
The first wiring path extends from the distribution unit through one of the right part of the vehicle or the left part of the vehicle to the right rear part or the left rear part of the vehicle,
The second wiring path extends from the distribution section to a central rear portion of the vehicle.
Power supply system. a first wiring path that supplies electric power supplied from a power source to a first electrical component that requires a current equal to or greater than a predetermined current value among a plurality of electrical components included in the vehicle;
a second wiring path that supplies the power supplied from the power source to at least a second electrical component belonging to a rear lighting system of the vehicle among the plurality of electrical components, and does not supply the power to the first electrical component;
a distribution unit connected to the power source and distributing power supplied from the power source to a first path leading to a right portion of the vehicle and a second path leading to a left portion of the vehicle;
a first electric connection box provided in the first path and configured to supply electric power to the electrical equipment;
a second electric connection box provided in the second path and configured to supply electric power to the electrical equipment;
Equipped with
the first wiring path includes a path from the first electrical junction box or the second electrical junction box to a central rear portion of the vehicle,
The second wiring path includes a path from the first electric junction box to a right rear part of the vehicle and a path from the second electric junction box to a left rear part of the vehicle.
Power supply system. a first wiring path that supplies electric power supplied from a power source to a first electrical component that requires a current equal to or greater than a predetermined current value among a plurality of electrical components included in the vehicle;
a second wiring path that supplies the power supplied from the power source to at least a second electrical component belonging to a rear lighting system of the vehicle among the plurality of electrical components, and does not supply the power to the first electrical component;
a distribution unit connected to the power source and distributing power supplied from the power source to a first path leading to a right portion of the vehicle and a second path leading to a left portion of the vehicle;
a first electric connection box provided in the first path and configured to supply electric power to the electrical equipment;
a second electric connection box provided in the second path and configured to supply electric power to the electrical equipment;
Equipped with
the first wiring path includes a path from the first electrical junction box to a right rear portion of the vehicle and a path from the second electrical junction box to a left rear portion of the vehicle,
The second wiring path includes a path from the first electric junction box to a right rear part of the vehicle and a path from the second electric junction box to a left rear part of the vehicle.
Power supply system. a first wiring path that supplies electric power supplied from a power source to a first electrical component that requires a current equal to or greater than a predetermined current value among a plurality of electrical components included in the vehicle;
a second wiring path that supplies the power supplied from the power source to at least a second electrical component belonging to a rear lighting system of the vehicle among the plurality of electrical components, and does not supply the power to the first electrical component;
a distribution unit connected to the power source and distributing power supplied from the power source to a first path leading to a right portion of the vehicle and a second path leading to a left portion of the vehicle;
a first electric connection box provided in the first path and configured to supply electric power to the electrical equipment;
a second electric connection box provided in the second path and configured to supply electric power to the electrical equipment;
Equipped with
the first wiring path includes a path from the first electrical junction box to a right rear portion of the vehicle and a path from the second electrical junction box to a left rear portion of the vehicle,
The second wiring path extends from the first electrical junction box or the second electrical junction box to a central rear portion of the vehicle.
Power supply system. a first wiring path that supplies electric power supplied from a power source to a first electrical component that requires a current equal to or greater than a predetermined current value among a plurality of electrical components included in the vehicle;
a second wiring path that supplies the power supplied from the power source to at least a second electrical component belonging to a rear lighting system of the vehicle among the plurality of electrical components, and does not supply the power to the first electrical component;
a distribution unit connected to the power source and distributing power supplied from the power source to a first path leading to a right portion of the vehicle and a second path leading to a left portion of the vehicle;
a first electric connection box provided in the first path and configured to supply electric power to the electrical equipment;
a second electric connection box provided in the second path and configured to supply electric power to the electrical equipment;
Equipped with
the first wiring path extends from the first electrical junction box to a right rear portion of the vehicle or from the second electrical junction box to a left rear portion of the vehicle;
The second wiring path extends from the first electrical junction box or the second electrical junction box to a central rear portion of the vehicle.
Power supply system.

Images