WO2021161787A1 - Battery connection system - Google Patents

Abstract

This battery connection system comprises: a main battery; a sub-battery; a first electrical cable that is electrically connected to the main battery; and a plurality of second electrical cables that are connected, by splicing, to the first electrical cable.

Description

Battery connection system

This disclosure relates to a battery connection system.

Patent Documents 1 and 2 describe an electric wire electrically connected to a battery.

Japanese Unexamined Patent Publication No. 2016-13754 JP-A-2017-136925

It is desirable to simplify the wiring of the wires that are electrically connected to the battery.

Therefore, the purpose is to provide a technology that can simplify the wiring of the electric wire electrically connected to the battery.

The battery connection system of the present disclosure includes a main battery, a sub-battery, a first electric wire electrically connected to the main battery, and a plurality of second electric wires splice-connected to the first electric wire. ..

Further, the battery connection system of the present disclosure includes a battery, a first electric wire directly connected to the battery, and a plurality of second electric wires splice-connected to the first electric wire.

According to the present disclosure, it is possible to simplify the wiring of the electric wire electrically connected to the battery.

FIG. 1 is a diagram showing an example of the configuration of a battery connection system. FIG. 2 is a diagram showing an example of how the battery connection system is mounted on the vehicle. FIG. 3 is a schematic partial cross-sectional view showing an example of the splice structure. FIG. 4 is a diagram showing an example of a partial configuration of a battery connection system. FIG. 5 is a diagram showing an example of a partial configuration of a battery connection system. FIG. 6 is a diagram showing an example of a partial configuration of a battery connection system. FIG. 7 is a diagram showing an example of a partial configuration of a battery connection system. FIG. 8 is a diagram showing an example of a partial configuration of a battery connection system.

[Explanation of Embodiments of the present disclosure]
First, embodiments of the present disclosure will be listed and described.

The battery connection system of the present disclosure is as follows.

(1) In a battery connection system including a main battery, a sub-battery, a first electric wire electrically connected to the main battery, and a plurality of second electric wires splice-connected to the first electric wire. be. According to the present disclosure, since a plurality of second electric wires are splice-connected to the first electric wire electrically connected to the main battery, the electric wire electrically connected to the main battery is branched into a plurality of electric wires. can do. Therefore, wiring can be simplified.

(2) The first electric wire may be directly connected to the main battery. In this case, since a plurality of second electric wires are splice-connected to the first electric wire directly connected to the main battery, the main battery is compared with the case where the plurality of second electric wires are directly connected to the main battery. Can be made smaller. Further, the increase / decrease in the number of connection targets for the plurality of second electric wires can be dealt with by changing the wiring member including the first electric wire and the plurality of second electric wires without changing the main battery. Therefore, the number of types of main batteries can be reduced.

(3) A branch box for branching an electric wire electrically connected to the main battery into a plurality of electric wires including the first electric wire may be further provided. In this case, since a plurality of second electric wires are splice-connected to the first electric wire extending from the branch box, the branch box should be made smaller than the case where the plurality of second electric wires extend directly from the branch box. Can be done. Further, it is possible to cope with an increase or decrease in the number of connection targets for the plurality of second electric wires by changing the wiring member including the first electric wire and the plurality of second electric wires without changing the branch box. Therefore, the number of types of branch boxes can be reduced.

(4) The main battery has a first connection terminal including a first positive terminal and a first negative terminal, and the first electric wire is electrically connected to the first positive terminal and the first negative terminal. A third electric wire electrically connected to the third electric wire and a plurality of fourth electric wires splice-connected to the third electric wire may be further provided. In this case, a plurality of electric wires are splice-connected to each of the first electric wire and the third electric wire electrically connected to the first positive terminal and the first negative terminal of the main battery, respectively. As a result, the wiring of the electric wire electrically connected to the first positive terminal can be simplified, and the wiring of the electric wire electrically connected to the first negative terminal can be simplified.

(5) The main battery has a second connection terminal including a second positive terminal and a second negative terminal, and is connected to a fifth electric wire electrically connected to the second positive terminal and the fifth electric wire. A plurality of splice-connected sixth electric wires, a seventh electric wire electrically connected to the second negative terminal, and a plurality of eighth electric wires splice-connected to the seventh electric wire are further provided. May be good. In this case, an electric wire to which a plurality of electric wires are splice-connected is electrically connected to each of the first positive terminal and the second positive terminal of the main battery, and the first negative terminal and the second negative terminal of the main battery. An electric wire in which a plurality of electric wires are splice-connected is electrically connected to each of the negative terminals. As a result, the number of a plurality of electric wires spliced to one electric wire can be reduced. Therefore, the diameter of the one electric wire can be reduced.

(6) The main battery may generate electric power for traveling the vehicle. In this case, it is possible to simplify the wiring of the electric wire electrically connected to the main battery that generates the electric power for traveling the vehicle.

(7) A battery connection system including a battery, a first electric wire directly connected to the battery, and a plurality of second electric wires splice-connected to the first electric wire. According to the present disclosure, since a plurality of second electric wires are splice-connected to the first electric wire directly connected to the battery, the electric wire directly connected to the main battery can be branched into a plurality of electric wires. Therefore, wiring can be simplified. Further, since a plurality of second electric wires are splice-connected to the first electric wire directly connected to the battery, the battery should be made smaller than the case where the plurality of second electric wires are directly connected to the battery. Can be done. Further, the increase / decrease in the number of connection targets for the plurality of second electric wires can be dealt with by changing the wiring member including the first electric wire and the plurality of second electric wires without changing the battery. , The type of battery can be reduced.

(8) The battery has a first connection terminal including a first positive terminal and a first negative terminal, and the first electric wire is directly connected to the first positive terminal and directly connected to the first negative terminal. A third electric wire and a plurality of fourth electric wires spliced to the third electric wire may be further provided. In this case, a plurality of electric wires are splice-connected to each of the first electric wire and the third electric wire directly connected to the first positive terminal and the first negative terminal of the battery, respectively. As a result, the wiring of the electric wire electrically connected to the first positive terminal can be simplified, and the wiring of the electric wire electrically connected to the first negative terminal can be simplified.

(9) The battery has a second connection terminal including a second positive terminal and a second negative terminal, and is splice-connected to the fifth electric wire directly connected to the second positive terminal and the fifth electric wire. A plurality of the sixth electric wires, a seventh electric wire directly connected to the second negative terminal, and a plurality of eighth electric wires spliced to the seventh electric wire may be further provided. In this case, an electric wire to which a plurality of electric wires are splice-connected is directly connected to each of the first positive terminal and the second positive terminal of the battery, and the first negative terminal and the second negative terminal of the battery are respectively connected. On the other hand, an electric wire in which a plurality of electric wires are splice-connected is directly connected. As a result, the number of a plurality of electric wires spliced to one electric wire can be reduced. Therefore, the diameter of the one electric wire can be reduced.

(10) The battery may generate electric power for traveling the vehicle. In this case, it is possible to simplify the wiring of the electric wire electrically connected to the battery that generates the electric power for traveling the vehicle.

(11) Each of the first electric wire and the plurality of second electric wires may be a shielded electric wire. In this case, the wiring of the shielded electric wire can be simplified.

(12) The plurality of second electric wires may be electrically connected to a plurality of equipment mounted on the vehicle. In this case, the wiring of the electric wire electrically connected to the equipment can be simplified.

[Details of Embodiments of the present disclosure]
Specific examples of the battery connection system of the present disclosure will be described below with reference to the drawings. It should be noted that the present disclosure is not limited to these examples, but is indicated by the scope of claims and is intended to include all modifications within the meaning and scope of the claims.

The battery connection system 1 according to the embodiment will be described below. FIG. 1 is a diagram showing an example of the configuration of the battery connection system 1. The battery connection system 1 is mounted on, for example, the vehicle 900, as shown in FIG. The vehicle 900 is, for example, an automobile vehicle. The vehicle 900 may be an EV (Electric Vehicle), an HV (Hybrid Vehicle), or a PHV (Plug-in Hybrid Vehicle).

As shown in FIG. 1, the battery connection system 1 includes, for example, a main battery 2, a sub-battery 3, a power feeding unit 4, a motor 5, an inverter 6, a plurality of equipment 7, and a plurality of wiring members. 8a, 9 and 10 are provided. The equipment 7 is also called an auxiliary machine.

The motor 5 is a motor for traveling the vehicle 900, and is also called a drive motor. The motor 5 is driven by the inverter 6. The rotation of the motor 5 causes the tires of the vehicle 900 to rotate, which enables the vehicle 900 to travel.

The main battery 2 can generate electric power for running the vehicle 900. The main battery 2 is also called a traveling battery or a driving battery. Further, the main battery 2 can generate electric power used by the equipment 7. In other words, the main battery 2 can generate a power source for the equipment 7. The main battery 2 includes, for example, a plurality of battery cells. The output voltage of the main battery 2 is, for example, several hundred V. The output voltage of the main battery 2 may be 200 V or more and 400 V or less. The output voltage of the main battery 2 is not limited to this.

The main battery 2 includes, for example, a plurality of connection terminals 20. Each connection terminal 20 has a positive terminal 21 and a negative terminal 22. The main battery 2 can output the generated voltage (in other words, electric power) from each connection terminal 20. The positive terminal 21 and the negative terminal 22 may be composed of only metal terminals, may be a connector in which metal terminals are housed in a housing, or may have other configurations. The configurations of the positive terminal 21 and the negative terminal 22 may be the same or different.

The sub-battery 3 can generate electric power used by equipment other than the plurality of equipment 7. The sub-battery 3 is called an auxiliary battery or an auxiliary battery. The output voltage (in other words, output power) of the sub-battery 3 is supplied to, for example, a plurality of equipped devices. The plurality of equipment includes, for example, a lamp, an audio device, a wiper drive device, and the like. The sub-battery 3 includes, for example, a plurality of battery cells. The output voltage of the sub-battery 3 is smaller than the output power of the main battery 2. The output voltage of the sub-battery 3 is, for example, 12V. The output voltage of the sub-battery 3 may be 24V or several tens of V. The output voltage of the sub-battery 3 is not limited to this.

The power supply unit 4 is connected to, for example, a quick charging facility capable of quickly charging the main battery 2. The DC voltage output by the quick charging equipment is supplied to the power feeding unit 4. The power feeding unit 4 can output the DC voltage supplied from the quick charging equipment to the main battery 2.

The plurality of equipments 7 are electrically connected to the main battery 2. The plurality of equipment 70 includes, for example, a compressor of an air conditioner, a heater, a solar cell module, and the like. In this example, the plurality of equipment 7 includes equipment 70 and 71. The equipment 70 is, for example, a compressor, and the equipment 71 is, for example, a heater.

The wiring member 8a electrically connects the main battery 2 and the plurality of equipment 7 to each other. The wiring member 9 electrically connects the main battery 2 and the power feeding unit 4 to each other. The wiring member 10 electrically connects the main battery 2 and the inverter 6 to each other. A connection terminal 20a to which the wiring member 8a is electrically connected, a connection terminal 20b to which the wiring member 9 is electrically connected, and a wiring member 10 are electrically connected to the plurality of connection terminals 20 included in the main battery 2. The connection terminal 20c to be connected is included.

The wiring member 9 includes, for example, electric wires 91 and 92. One end of the electric wire 91 is electrically connected to the positive terminal 21 of the connection terminal 20b. In this example, one end of the electric wire 91 is directly connected to the positive terminal 21 of the connection terminal 20b. The other end of the electric wire 91 is electrically connected to the power feeding unit 4. One end of the electric wire 92 is electrically connected to the minus terminal 22 of the connection terminal 20b. In this example, one end of the electric wire 92 is directly connected to the minus terminal 22 of the connection terminal 20b. The other end of the electric wire 92 is electrically connected to the power feeding unit 4.

The DC voltage for quick charging output by the power feeding unit 4 is supplied to the connection terminal 20b of the main battery 2 through the wiring member 9. As a result, the main battery 2 is quickly charged by the DC voltage output by the quick charging equipment. The wiring member 9 may include an exterior member that collectively covers the electric wires 91 and 92. The exterior member may be a corrugated tube or another member.

Each of the electric wires 91 and 92 is, for example, a shielded electric wire. The shielded electric wire of this example includes, for example, a core wire, an internal insulating coating that covers the outer circumference of the core wire, an electromagnetic shield member that covers the outer circumference of the internal insulating coating, and an external insulating coating that covers the outer circumference of the electromagnetic shield member. ing. The electromagnetic shield member suppresses the radiation of electromagnetic waves from the core wire. The electromagnetic shield member is, for example, a braided wire in which a conductive wire such as an aluminum alloy is woven into a tubular shape. The core wire may be composed of one wire or a plurality of wires.

The electric wire 91 has, for example, a connection terminal 91a directly connected to the core wire at one end thereof. Similarly, the electric wire 92 has, for example, a connection terminal 92a directly connected to the core wire at one end thereof. The connection terminals 91a and 92a may be composed of only metal terminals, may be connectors in which metal terminals are housed in a housing, or may have other configurations. The configurations of the connection terminals 91a and 92a may be the same or different.

The connection terminal 91a is directly connected to the positive terminal 21 of the connection terminal 20b of the main battery 2 by fitting or screwing. The connection terminal 92a is directly connected to the minus terminal 22 of the connection terminal 20b of the main battery 2 by fitting or screwing. The electromagnetic shield members of the electric wires 91 and 92 are electrically connected to, for example, the metal outer case of the main battery 2. The outer case of the main battery 2 is electrically connected to, for example, the metal body of the vehicle 900. At least one of the wires 91 and 92 does not have to be a shielded wire.

The wiring member 10 includes, for example, electric wires 101 and 102. One end of the electric wire 101 is electrically connected to the positive terminal 21 of the connection terminal 20c. In this example, one end of the electric wire 101 is directly connected to the positive terminal 21 of the connection terminal 20c. The other end of the electric wire 101 is electrically connected to the inverter 6. One end of the electric wire 102 is electrically connected to the positive terminal 21 of the connection terminal 20c. In this example, one end of the electric wire 102 is directly connected to the positive terminal 21 of the connection terminal 20c. The other end of the electric wire 102 is electrically connected to the inverter 6.

The output voltage output from the connection terminal 20c by the main battery 2 is supplied to the inverter 6 through the wiring member 10. The inverter 6 generates, for example, a three-phase AC voltage based on the supplied voltage. Then, the inverter 6 supplies the generated three-phase AC voltage to the motor 5 to drive the motor 5. As a result, the motor 5 rotates based on the electric power generated by the main battery 2, and the vehicle 900 runs. The wiring member 10 may include an exterior member that collectively covers the electric wires 101 and 102. The exterior member may be a corrugated tube or another member.

Each of the electric wires 101 and 102 is, for example, a shielded electric wire. The electric wire 101 has, for example, a connection terminal 101a directly connected to the core wire at one end thereof. Similarly, the electric wire 102 has, for example, a connection terminal 102a directly connected to the core wire at one end thereof. The connection terminals 101a and 102a may be composed of only metal terminals, may be connectors in which metal terminals are housed in a housing, or may have other configurations. The configurations of the connection terminals 101a and 102a may be the same or different.

The connection terminal 101a is directly connected to the positive terminal 21 of the connection terminal 20c of the main battery 2 by fitting or screwing. The connection terminal 102a is directly connected to the minus terminal 22 of the connection terminal 20c of the main battery 2 by fitting or screwing. The electromagnetic shield members of the electric wires 101 and 102 are electrically connected to, for example, the metal outer case of the main battery 2. At least one of the wires 101 and 102 does not have to be a shielded wire.

The wiring member 8a includes a positive wiring member 81a that electrically connects the equipment 70 and 71 and the positive terminal 21 of the connection terminal 20a of the main battery 2. Further, the wiring member 8a includes a minus side wiring member 82a that electrically connects the equipment 70 and 71 and the minus terminal 22 of the connection terminal 20a.

The positive side wiring member 81a includes a plurality of electric wires 810, 811 and 812. One end of the electric wire 810 is electrically connected to the positive terminal 21 of the connection terminal 20a. In this example, one end of the electric wire 810 is directly connected to the positive terminal 21 of the connection terminal 20a. One ends of the wires 811 and 812 are electrically connected to the other end of the wires 810. In this example, one end of the wires 811 and 812 is splice-connected to the other end of the wire 810. The positive side wiring member 81a has a splice structure 813 in which the electric wires 811 and 812 are splice-connected to the electric wire 810. In the positive side wiring member 81a, it can be said that the electric wire 810 is branched into a plurality of electric wires 811 and 812 by the splice structure 813. The other ends of the wires 811 and 812 are electrically connected to the equipment 70 and 71, respectively.

The minus side wiring member 82a includes a plurality of electric wires 820, 821, 822. One end of the electric wire 820 is electrically connected to the minus terminal 22 of the connection terminal 20a. In this example, one end of the electric wire 820 is directly connected to the minus terminal 22 of the connection terminal 20a. One end of the electric wires 821 and 822 is electrically connected to the other end of the electric wire 820. In this example, one end of the wires 821 and 822 is splice-connected to the other end of the wire 820. The negative side wiring member 82a has a splice structure 823 in which the electric wires 821 and 822 are splice-connected to the electric wire 820. In the minus side wiring member 82a, it can be said that the electric wire 820 is branched into a plurality of electric wires 821 and 822 by the splice structure 823. The other ends of the wires 821 and 822 are electrically connected to the equipment 70 and 71, respectively.

The output voltage output from the connection terminal 20a by the main battery 2 is supplied to the equipment 70 through the wiring member 8a. As a result, the compressor as the equipment 70 can operate using the electric power generated by the main battery 2 as a power source. Further, the output voltage output from the connection terminal 20a by the main battery 2 is supplied to the equipment 71 through the wiring member 8a. As a result, the heater as the equipment 71 can operate using the electric power generated by the main battery 2 as a power source.

Each of the electric wires 810, 811, 812, 820, 821, 822 is, for example, a shielded electric wire. The electric wire 810 includes a connection terminal 810a electrically connected to the core wire at one end thereof. Similarly, the electric wire 820 includes a connection terminal 820a electrically connected to the core wire at one end thereof. The connection terminals 810a and 820a may be composed of only metal terminals, may be connectors in which metal terminals are housed in a housing, or may have other configurations. The configurations of the connection terminals 810a and 820a may be the same or different. The connection terminal 810a is directly connected to the positive terminal 21 of the connection terminal 20a of the main battery 2 by fitting or screwing. The connection terminal 820a is directly connected to the minus terminal 22 of the connection terminal 20a of the main battery 2 by fitting or screwing. The electromagnetic shield members of the electric wires 810 and 820 are electrically connected to, for example, the outer case of the main battery 2. At least one of the wires 810,811,812,820,821,822 does not have to be shielded wires.

The wiring member 8a may include an exterior member that collectively covers the electric wires 810 and 820. Further, the wiring member 8a may include an exterior member that collectively covers the electric wires 811 and 821 connected to the equipment 70. Further, the wiring member 8a may include an exterior member that collectively covers the electric wires 812 and 822 connected to the equipment 71. The exterior member may be a corrugated tube or another member.

<Example of splice structure>
FIG. 3 is a schematic partial cross-sectional view showing an example of the splice structure 813. In FIG. 3, diagonal lines are shown in the cross section. As shown in FIG. 3, the electric wire 810 covers the core wire 810b, the internal insulation coating 810c that covers the outer circumference of the core wire 810b, the electromagnetic shield member 810d that covers the outer circumference of the internal insulation coating 810c, and the outer circumference of the electromagnetic shield member 810d. It has an external insulating coating 810e. At the end of the electric wire 810 on the side opposite to the connection terminal 810a side, the core wire 810b, the internal insulation coating 810c, and the electromagnetic shield member 810d are exposed to the outside.

The electric wire 811 has a core wire 811b, an internal insulating coating 811c covering the outer circumference of the core wire 811b, an electromagnetic shield member 811d covering the outer circumference of the internal insulating coating 811c, and an external insulating coating 811e covering the outer circumference of the electromagnetic shield member 811d. At the end of the electric wire 811 on the side opposite to the equipment 70 side, the core wire 811b, the internal insulation coating 811c, and the electromagnetic shield member 811d are exposed to the outside.

The electric wire 812 has a core wire 812b, an internal insulation coating 812c that covers the outer circumference of the core wire 812b, an electromagnetic shield member 812d that covers the outer circumference of the internal insulation coating 812c, and an external insulation coating 812e that covers the outer circumference of the electromagnetic shield member 812d. At the end of the electric wire 812 on the side opposite to the equipment 71 side, the core wire 812b, the internal insulation coating 812c, and the electromagnetic shield member 812d are exposed to the outside.

As shown in FIG. 3, the splice structure 813 of the positive side wiring member 81a includes a terminal 84, an insulating member 85, an electromagnetic shield pipe 86, a caulking member 87, a waterproof member 88, and binding bands 89a and 89b. To be equipped.

The terminal 84 is made of, for example, a conductive metal plate material. The terminal 84 is crimped to, for example, the core wires 810b, 811b, 812b while enclosing the core wires 810b, 811b, 812b of the electric wires 810, 811 and 812 together. As a result, the core wires 810b, 811b, and 812b are electrically connected to each other. The core wires 810b, 811b, and 812b to which the terminal 84 is crimped may or may not be in contact with each other. The terminal 84 functions as a connecting portion or a connecting member that electrically connects the core wires 810b, 811b, and 812b to each other. The method of connecting the terminal 84 to the core wires 810b, 811b, and 812b is not limited to crimping. The connection method of the terminal 84 may be, for example, welding or another method.

The insulating member 85 is made of, for example, insulating tape or the like. The insulating member 85 covers the outside of the terminal 84 along the circumferential direction of the positive side wiring member 81a (in other words, the direction surrounding the extending direction of the positive side wiring member 81a). The insulating member 85 covers all the exposed portions of the core wires 810b, 811b, and 812b along the circumferential direction of the positive side wiring member 81a.

The electromagnetic shield pipe 86 covers the insulating member 85 and the terminal 84 along the circumferential direction of the positive side wiring member 81a. The electromagnetic shield pipe 86 suppresses the radiation of electromagnetic waves from the core wires 810b, 811b, 812b and the terminals 84 crimped to them. The electromagnetic shield pipe 86 is made of, for example, a material having a constant inner diameter and outer diameter. The electromagnetic shield pipe 86 is made of a metal pipe made of a conductive metal such as an aluminum alloy. The length of the electromagnetic shield pipe 86 along the extending direction of the positive side wiring member 81a is larger than the length of the insulating member 85 along the extending direction. The electromagnetic shield pipe 86 covers all of the insulating member 85 along the circumferential direction of the positive side wiring member 81a.

The electromagnetic shield members 810d, 811d, 812d of the electric wires 810, 811 and 812 are connected to the outer peripheral surface of the electromagnetic shield pipe 86. In this example, a part of the electromagnetic shield members 810d, 811d, and 812d is in contact with a part of the outer peripheral surface of the electromagnetic shield pipe 86 in the circumferential direction.

The caulking member 87 functions as a fixing member for fixing the electromagnetic shield members 810d, 811d, and 812d arranged on the outer peripheral surface of the electromagnetic shield pipe 86 to the outer peripheral surface. The caulking member 87 is made of, for example, a material having a constant inner diameter and outer diameter. The caulking member 87 is composed of a metal pipe made of a conductive metal such as an aluminum alloy. The length of the caulking member 87 along the extending direction of the positive side wiring member 81a is smaller than the length of the electromagnetic shield pipe 86 in the extending direction. The caulking member 87 covers the outer peripheral surface of the electromagnetic shield pipe 86 at substantially the center of the electromagnetic shield pipe 86. The caulking member 87 is, for example, caulked and fixed to the electromagnetic shield pipe 86 so as to sandwich a part of each of the electromagnetic shield members 810d, 811d, and 812d arranged on the outer peripheral surface of the electromagnetic shield pipe 86 with the outer peripheral surface. It is fixed by the connection method such as.

The waterproof member 88 covers the electromagnetic shield pipe 86 and the caulking member 87 along the circumferential direction of the positive side wiring member 81a. The waterproof member 88 has, for example, a resin pipe 88a and rubber stoppers 88b and 88c. The resin pipe 88a covers from the outer circumference of the outer insulating coating 810e of the electric wire 810 extending to one side to the outer circumference of the outer insulating coatings 811e and 812e of the electric wires 811 and 812 extending to the other side with the terminal 84 as the center. The rubber stopper 88b is provided so as to close between the open end on one side of the resin pipe 88a and the outer circumference of the external insulating coating 810e. The rubber stopper 88c is provided so as to close the opening end on the other side of the resin pipe 88a and the outer periphery of the external insulating coatings 811e and 812e.

The binding bands 89a and 89b are members for preventing the rubber stoppers 88b and 89c from slipping. The binding band 89a is fixed to the outer periphery of the outer insulating coating 810e of the electric wire 810 adjacent to the rubber stopper 88b. As a result, the rubber stopper 88b is less likely to slip, and the possibility that the rubber stopper 88b will come off from the resin pipe 88a can be reduced. Further, the binding band 89b is fixed to the outer periphery of the external insulating coatings 811e and 812e of the electric wires 811 and 812 adjacent to the rubber stopper 88c. As a result, the rubber stopper 88c is less likely to slip, and the possibility that the rubber stopper 88c will come off from the resin pipe 88a can be reduced.

In the splice structure 813 as described above, the core wires 810b, 811b, 812b of the electric wires 810, 811 and 812 and the terminals 84 for electrically connecting them are electromagnetically shielded members 810d, 811d, 812d connected to the outer peripheral surface. It is covered with a shield pipe 86. As a result, the emission of electromagnetic waves from the connection portions of the electric wires 810, 811 and 812 can be suppressed with a simple configuration.

Further, in this example, since the electromagnetic shield pipe 86 is made of a material having a constant inner diameter and outer diameter, it has a simpler configuration than, for example, a case where at least one of the inner diameter and the outer diameter is not constant. , The emission of electromagnetic waves from the connection portions of the electric wires 810, 811 and 812 is suppressed.

Further, in this example, since the fixing members for fixing the electromagnetic shield members 810d, 811d, and 812d arranged on the outer peripheral surface of the electromagnetic shield pipe 86 are provided, for example, the electromagnetic shield can be easily performed without performing welding work or the like. The members 810d, 811d, and 812d can be fixed to the outer peripheral surface of the electromagnetic shield pipe 86.

Further, in this example, since the caulking member 87 that is provided so as to surround the outer circumference of the electromagnetic shield pipe 86 and is caulked and fixed to the electromagnetic shield pipe 86 is provided as a fixing member, the electromagnetic shield members 810d and 811d , 812d can be easily fixed to the outer peripheral surface of the electromagnetic shield pipe 86.

Further, in this example, since the caulking member 87 is made of a material having a constant inner diameter and outer diameter, it has a simpler configuration than, for example, a case where at least one of the inner diameter and the outer diameter is not constant. Radiation of electromagnetic waves from the connection portion of the electric wires 810, 811 and 812 is suppressed.

Further, in this example, since the waterproof member 88 that covers the electromagnetic shield pipe 86 is provided, it is possible to prevent the electromagnetic shield pipe 86 and the terminals 84 arranged inside the electromagnetic shield pipe 86 from being exposed to water.

The electromagnetic shield pipe 86 may be made of a material having a constant inner diameter and outer diameter before the caulking member 87 is caulked and fixed, and even if the caulking member 87 is crushed and deformed by caulking and fixing. It may or may not be deformed.

In this example, the splice structure 823 included in the minus side wiring member 82a has the same configuration as the splice structure 813 included in the plus side wiring member 81a. That is, in the structure shown in FIG. 3, the splice structure 823 has a structure in which electric wires 820, 821, and 822 are provided instead of the electric wires 810, 811 and 812, respectively.

Similar to the splice structure 813, the splice structure 823 includes, for example, a terminal 84, an insulating member 85, an electromagnetic shield pipe 86, a caulking member 87, a waterproof member 88, and binding bands 89a and 89b. In the splice structure 823, the core wires of the electric wires 820, 821 and 822 are electrically connected to each other by the terminal 84. Further, the electromagnetic shield members of the electric wires 820, 821 and 822 are fixed to the outer peripheral surface of the electromagnetic shield pipe 86 by the caulking member 87. The resin pipe 88a of the waterproof member 88 covers from the outer circumference of the outer insulating coating of the electric wire 820 extending to one side to the outer circumference of the outer insulating coating of the electric wires 821 and 822 extending to the other side with the terminal 84 as the center. The rubber stopper 88b is provided so as to close between the open end on one side of the resin pipe 88a and the outer circumference of the outer insulating coating of the electric wire 820. The rubber stopper 88c is provided so as to close the opening end on the other side of the resin pipe 88a and the outer periphery of the external insulating coating of the electric wires 821 and 822. The binding band 89a is fixed to the outer periphery of the outer insulating coating of the electric wire 810 adjacent to the rubber stopper 88b. The binding band 89b is fixed to the outer periphery of the outer insulating coating of the electric wires 821 and 822 adjacent to the rubber stopper 88c.

The configurations of the splice structures 813 and 823 are not limited to the above example. For example, the electromagnetic shield pipe 86 is made of a material having a constant inner diameter and outer diameter, but is not limited thereto. For example, the electromagnetic shield pipe 86 may be made of a material in which at least one of the inner diameter and the outer diameter is not constant before the caulking member 87 is caulked and fixed.

Further, the caulking member 87 is made of a material having a constant inner diameter and outer diameter before being crimped and fixed, but the caulking member 87 is not limited to this. For example, the caulking member 87 may be made of a material in which at least one of the inner diameter and the outer diameter is not constant. Further, the shape of the caulking member 87 may be a shape in which a part of the caulking member 87 in the circumferential direction is cut out. For example, the caulking member 87 may be a C-ring having a C-shaped cross section. In this case, the caulking member 87 can be easily assembled.

Further, the electromagnetic shield members 810d, 811d, and 812d of the positive side wiring member 81a may be welded to the outer peripheral surface of the electromagnetic shield pipe 86. Further, the electromagnetic shield member of the negative side wiring member 82a may be welded to the outer peripheral surface of the electromagnetic shield pipe 86. In these cases, the caulking member 87 may or may not be provided. Further, a fixing member different from the caulking member 87 may be provided.

Further, the structure of the waterproof member 88 may be different from the above example. For example, the waterproof member 88 may be composed of a shrinkable tube or the like. Further, the waterproof member 88 may not be provided. Further, the binding bands 89a and 89b may or may not be provided as needed.

In the above example, the electromagnetic shield member is a braided wire, but it may be another member capable of suppressing the radiation of electromagnetic waves. For example, the electromagnetic shield member may be another member such as a metal foil.

Further, although the core wires 810b, 811b, and 812b of the positive side wiring member 81a are electrically connected to each other by the terminal 84, they may be electrically connected to each other by another method. For example, the core wires 810b, 811b, 812b may be electrically connected to each other by connecting the core wires 810b, 811b, 812b to each other by welding. In this case, the welded portion to which the core wires 810b, 811b, and 812b are welded becomes a connecting portion that electrically connects the core wires 810b, 811b, and 812b to each other. Further, the core wires of the electric wires 820, 821 and 822 may be connected to each other by welding. Further, the configurations of the splice structures 813 and 823 may be different from each other.

As described above, in this example, a plurality of electric wires ( electric wires 811 and 812 or electric wires 821 and 822) are splice-connected to the electric wire (electric wire 810 or electric wire 820) electrically connected to the main battery 2. Therefore, the electric wire electrically connected to the main battery 2 can be branched into a plurality of electric wires. Therefore, wiring can be simplified.

Further, in this example, since each of the electric wires 810, 811, 812, 820, 821, 822 is a shielded electric wire, the wiring of the shielded electric wire can be simplified.

Further, in this example, the main battery 2 generates electric power for traveling of the vehicle 900. In this case, it is possible to simplify the wiring of the electric wire electrically connected to the main battery 2 that generates the electric power for traveling of the vehicle 900.

Further, in this example, the electric wires 811 and 812 are electrically connected to the equipment devices 70 and 71 mounted on the vehicle 900, respectively. Further, the electric wires 821 and 822 are electrically connected to the equipment devices 70 and 71 mounted on the vehicle 900, respectively. In this case, the wiring of the electric wire electrically connected to the equipment 7 can be simplified.

Further, in this example, a plurality of electric wires are splice-connected to each of the electric wires 810 and 820 electrically connected to the positive terminal 21 and the negative terminal 22 of the connection terminal 20a of the main battery 2, respectively. As a result, the wiring of the electric wire electrically connected to the positive terminal 21 can be simplified, and the wiring of the electric wire electrically connected to the negative terminal 22 can be simplified.

Further, in this example, a plurality of electric wires ( electric wires 811 and 812 or electric wires 821 and 822) are splice-connected to the electric wire (electric wire 810 or electric wire 820) directly connected to the main battery 2. As a result, the number of terminals of the main battery 2 can be reduced and the size of the main battery 2 can be reduced as compared with the case where a plurality of electric wires are directly connected to the main battery 2. Further, in response to an increase or decrease in the number of connection targets for a plurality of electric wires splice-connected to the electric wire directly connected to the main battery 2, the wiring member (plus side wiring member 81a or minus) without changing the main battery 2 This can be done by changing the side wiring member 82a). As a result, the types of the main battery 2 (in other words, the product number) can be reduced.

FIG. 4 is a diagram showing an example of how four equipments 7 are electrically connected to the main battery 2. In the example of FIG. 4, a wiring member 8b is connected to the main battery 2 instead of the wiring member 8a. The four equipments 7 electrically connected to the main battery 2 include the above-mentioned equipments 70 and 71 and equipments 72 and 73. The equipment 72 is, for example, a solar cell module. The equipment 73 is, for example, an inverter that generates AC (Alternating Current) 100V. The AC100V generated by the equipment 73 is output from, for example, an outlet provided in the interior of the vehicle 900.

The wiring member 8b includes a positive wiring member 81b that electrically connects the equipment 70 to 73 and the positive terminal 21 of the connection terminal 20a of the main battery 2. The positive side wiring member 81b includes electric wires 814 to 818. Each of the electric wires 814 to 818 is, for example, a shielded electric wire. At least one of the wires 814 to 818 does not have to be a shielded wire.

The wiring member 8b further includes a minus side wiring member 82b that electrically connects the equipment 70 to 73 and the minus terminal 22 of the connection terminal 20a. The minus side wiring member 82b includes electric wires 824 to 828. Each of the electric wires 824 to 828 is, for example, a shielded electric wire. At least one of the wires 824 to 828 does not have to be a shielded wire.

One end of the electric wire 814 is electrically connected to the positive terminal 21 of the connection terminal 20a. In this example, one end of the electric wire 814 is directly connected to the positive terminal 21 of the connection terminal 20a. One end of the electric wire 824 is electrically connected to the minus terminal 22 of the connection terminal 20a. In this example, one end of the electric wire 824 is directly connected to the negative terminal 22 of the connection terminal 20a.

The electric wire 814 is provided with a connection terminal 814a electrically connected to the core wire at one end thereof. The electric wire 824 is provided with a connection terminal 824a electrically connected to the core wire at one end thereof. The connection terminals 814a and 824a may be composed of only metal terminals, may be connectors in which metal terminals are housed in a housing, or may have other configurations. The configurations of the connection terminals 814a and 824a may be the same or different.

The connection terminal 814a is directly connected to the positive terminal 21 of the connection terminal 20a of the main battery 2 by fitting or screwing. The connection terminal 824a is directly connected to the minus terminal 22 of the connection terminal 20a by fitting, screwing, or the like. The electromagnetic shield members of the electric wires 814 and 824 are electrically connected to, for example, the outer case of the main battery 2.

One end of the electric wires 815 to 816 is electrically connected to the other end of the electric wire 814. In this example, one end of the wires 815 to 818 is splice-connected to the other end of the wire 814. The positive side wiring member 81b has a splice structure 819 in which electric wires 815 to 818 are splice-connected to the electric wire 814. In the positive side wiring member 81b, it can be said that the electric wire 814 is branched into a plurality of electric wires 815 to 818 by the splice structure 819. The other ends of the electric wires 815 to 818 are electrically connected to the equipment 70 to 73, respectively.

One end of the electric wires 825 to 828 is electrically connected to the other end of the electric wire 824. In this example, one end of the wires 825 to 828 is splice-connected to the other end of the wire 824. The negative side wiring member 82b has a splice structure 829 in which electric wires 825 to 828 are splice-connected to the electric wire 824. In the minus side wiring member 82b, it can be said that the electric wire 824 is branched into a plurality of electric wires 825 to 828 by the splice structure 829. The other ends of the electric wires 825 to 828 are electrically connected to the equipment 70 to 73, respectively.

The output voltage output from the connection terminal 20a by the main battery 2 is supplied to the equipment 70 through the wiring member 8b. Further, the output voltage output from the connection terminal 20a by the main battery 2 is supplied to the equipment 71 through the wiring member 8b.

The electric power generated by the solar cell module as the equipment 72 is supplied to the connection terminal 20a of the main battery 2 through the wiring member 8b. As a result, the main battery 2 can be charged by the electric power generated by the solar cell module as the equipment 72. Further, the output voltage output from the connection terminal 20a by the main battery 2 is supplied to the equipment 73 through the wiring member 8b. As a result, the inverter as the equipment 73 can generate AC100V based on the electric power generated by the main battery 2.

The wiring member 8b may include an exterior member that collectively covers the electric wires 814 and 824. Further, the wiring member 8b may include an exterior member that collectively covers the electric wires 815 and 825 connected to the equipment 70. Further, the wiring member 8b may include an exterior member that collectively covers the electric wires 816 and 826 connected to the equipment 71. Further, the wiring member 8b may include an exterior member that collectively covers the electric wires 817 and 827 connected to the equipment 72. Further, the wiring member 8b may include an exterior member that collectively covers the electric wires 818 and 828 connected to the equipment 73. The exterior member may be a corrugated tube or another member.

The splice structures 819 and 829 have the same structure as the splice structures 813 and 823 described above. Similar to the splice structures 813 and 823, the splice structures 819 and 829 have, for example, a terminal 84, an insulating member 85, an electromagnetic shield pipe 86, a caulking member 87, a waterproof member 88, and a binding band 89a and 89b. And.

In the splice structure 819, the core wires of the electric wires 814 to 818 are electrically connected to each other by the terminal 84. Further, the electromagnetic shield members of the electric wires 814 to 818 are fixed to the outer peripheral surface of the electromagnetic shield pipe 86 by the caulking member 87. The resin pipe 88a of the waterproof member 88 covers from the outer circumference of the outer insulating coating of the electric wire 814 extending to one side to the outer circumference of the outer insulating coating of the electric wires 815 to 818 extending to the other side with the terminal 84 as the center. The rubber stopper 88b is provided so as to close between the open end on one side of the resin pipe 88a and the outer circumference of the outer insulating coating of the electric wire 814. The rubber stopper 88c is provided so as to close the opening end on the other side of the resin pipe 88a and the outer circumference of the outer insulating coating of the electric wires 815 to 818. The binding band 89a is fixed to the outer periphery of the outer insulating coating of the electric wire 814 adjacent to the rubber stopper 88b. The binding band 89b is fixed to the outer periphery of the outer insulating coating of the electric wires 815 to 818 adjacent to the rubber stopper 88c. The configuration of the splice structure 819 is not limited to the above example.

In the splice structure 829, the core wires of the electric wires 824 to 828 are electrically connected to each other by the terminal 84. Further, the electromagnetic shield members of the electric wires 824 to 828 are fixed to the outer peripheral surface of the electromagnetic shield pipe 86 by the caulking member 87. The resin pipe 88a of the waterproof member 88 covers from the outer circumference of the outer insulating coating of the electric wire 824 extending to one side to the outer circumference of the outer insulating coating of the electric wires 825 to 828 extending to the other side, centering on the terminal 84. The rubber stopper 88b is provided so as to close between the open end on one side of the resin pipe 88a and the outer circumference of the outer insulating coating of the electric wire 824. The rubber stopper 88c is provided so as to close the opening end on the other side of the resin pipe 88a and the outer circumference of the outer insulating coating of the electric wires 825 to 828. The binding band 89a is fixed to the outer periphery of the outer insulating coating of the electric wire 824 adjacent to the rubber stopper 88b. The binding band 89b is fixed to the outer periphery of the outer insulating coating of the electric wires 825 to 828 adjacent to the rubber stopper 88c. The configuration of the splice structure 829 is not limited to the above example.

In the example of FIG. 4, the number of equipment 7 is increased from 2 to 4 as compared with the example of FIG. Such an increase in the number of equipped devices 7 can be dealt with by changing the wiring member 8a to the wiring member 8b while keeping the main battery 2 as it is. In other words, with respect to the increase in the equipment 7, the main battery 2 remains as it is, and the positive side wiring member 81a and the negative side wiring member 82a are changed to the positive side wiring member 81b and the negative side wiring member 82b, respectively. Can be handled. Further, when the number of equipment 7 is reduced from 4 to 2, the main battery 2 can be left as it is, and the wiring member 8b can be changed to the wiring member 8a. Therefore, even if the number of equipment 7 is increased or decreased, it is not necessary to replace the main battery 2. Therefore, the types of the main battery 2 (in other words, the product number) can be reduced.

The number of the plurality of equipped devices 7 electrically connected to the main battery 2 may be three or five or more.

Further, when the number of the plurality of equipped devices 7 electrically connected to the main battery 2 is large, a plurality of wiring members for electrically connecting the main battery 2 and the equipped devices 7 may be provided.

FIG. 5 is a diagram showing an example of how six equipments 7 are electrically connected to the main battery 2. In the example of FIG. 5, the plurality of equipments 7 electrically connected to the main battery 2 include equipments 70 to 75. Further, the plurality of connection terminals 20 included in the main battery 2 include connection terminals 20a to 20d.

In the example of FIG. 5, similarly to FIG. 4, the connection terminal 20a and the equipment devices 70 to 73 are electrically connected by the wiring member 8b. Further, the connection terminal 20d and the equipments 74 and 75 are electrically connected by a wiring member 8a.

The connection terminal 810a of the electric wire 810 of the positive side wiring member 81a included in the wiring member 8a is directly connected to the positive terminal 21 of the connection terminal 20d. The ends of the wires 811 and 812 of the positive wiring member 81a on the opposite sides of the splice structure 813 are electrically connected to the equipment 74 and 75, respectively.

The connection terminal 820a of the electric wire 820 of the minus side wiring member 82a included in the wiring member 8a is directly connected to the minus terminal 22 of the connection terminal 20d. The ends of the wires 821 and 822 of the minus side wiring member 82a on the opposite side of the splice structure 823 side are electrically connected to the equipment 74 and 75, respectively.

In the example of FIG. 5, a wiring member 8b electrically connected to the connection terminal 20a of the main battery 2 and a wiring member 8a electrically connected to the connection terminal 20d of the main battery 2 are provided. In this case, an electric wire to which a plurality of electric wires are splice-connected is electrically connected to each of the positive terminals 21 of the connection terminals 20a and 20d, and to each of the negative terminals 22 of the connection terminals 20a and 20d. Therefore, an electric wire in which a plurality of electric wires are splice-connected is electrically connected. As a result, the number of a plurality of electric wires spliced to one electric wire can be reduced. Therefore, the diameter of the one electric wire can be reduced.

For example, in the example of FIG. 4, consider the case where the six equipments 7 and the connection terminals 20a are electrically connected by the wiring member 8b. In this case, it is necessary to splice connect six electric wires to the electric wire 814 connected to the positive terminal 21 and splice connect six electric wires to the electric wire 824 connected to the negative terminal 22. Therefore, the diameters of the electric wires 814 and 824 may increase.

On the other hand, in the example of FIG. 5, four electric wires are splice-connected to the electric wire 814 connected to the positive terminal 21 of the connection terminal 20a, and the electric wire 810 connected to the positive terminal 21 of the connection terminal 20d is connected. Two wires are splice-connected. Further, four electric wires are splice-connected to the electric wire 824 connected to the negative terminal 22 of the connection terminal 20a, and two electric wires are splice-connected to the electric wire 820 connected to the negative terminal 22 of the connection terminal 20d. There is. As a result, the number of a plurality of electric wires spliced to one electric wire can be reduced. Therefore, the diameters of the electric wires 810, 814, 820, and 824 can be reduced.

In the above example, a plurality of electric wires are splice-connected to the electric wire directly connected to the main battery 2, but the electric wire is electrically connected to the main battery 2 extending from the branch box that branches the electric wire into the plurality of electric wires. A plurality of electric wires may be splice-connected to the electric wire. FIG. 6 is a diagram showing an example of a state in which a plurality of electric wires are splice-connected to the electric wires extending from the branch box.

In the example of FIG. 6, the wiring member 16 is electrically connected to the connection terminal 20 of the main battery 2. The wiring member 16 includes electric wires 161 and 162. Each of the wires 162 and 163 is, for example, a shielded wire.

One end of the electric wire 161 is connected to the branch box 15. The other end of the electric wire 161 is electrically connected to the positive terminal 21 of the connection terminal 20. Specifically, of the core wire of the electric wire 161, the portion located at the other end of the electric wire 161 is electrically connected to the positive terminal 21. The portion of the electromagnetic shield member of the electric wire 161 located at the other end of the electric wire 161 is electrically connected to, for example, the metal outer case of the main battery 2.

One end of the electric wire 162 is connected to the branch box 15. The other end of the electric wire 162 is electrically connected to the minus terminal 22 of the connection terminal 20. Specifically, of the core wire of the electric wire 162, the portion located at the other end of the electric wire 162 is electrically connected to the minus terminal 22. The portion of the electromagnetic shield member of the electric wire 162 located at the other end of the electric wire 162 is electrically connected to, for example, the metal outer case of the main battery 2.

One end of the electric wires 810 and 820 of the wiring member 8a connected to the equipment 7 is connected to the branch box 15. One ends of the electric wires 91 and 92 of the wiring member 9 connected to the power feeding unit 4 are connected to the branch box 15. One ends of the electric wires 101 and 102 of the wiring member 10 connected to the inverter 6 are connected to the branch box 15.

The branch box 15 has, for example, a box-shaped metal outer case. In this outer case, for example, a plus side bus bar and a minus side bus bar are provided. The positive bus bar has one end of the core wire of the electric wire 161 electrically connected to the positive terminal 21 of the main battery 2, one end of the core wire of the electric wire 810 of the wiring member 8a, and one end of the core wire of the electric wire 91 of the wiring member 9. And one end of the core wire of the electric wire 101 of the wiring member 10 are electrically connected. The minus side bus bar has one end of the core wire of the electric wire 162 electrically connected to the minus terminal 22 of the main battery 2, one end of the core wire of the electric wire 820 of the wiring member 8a, and one end of the core wire of the electric wire 92 of the wiring member 9. And one end of the core wire of the electric wire 102 of the wiring member 10 are electrically connected. One end of the electromagnetic shield member of the electric wires 91, 92, 101, 102, 161, 162, 810, 820 is electrically connected to, for example, the metal outer case of the branch box 15. The outer case of the branch box 15 is electrically connected to, for example, the metal body of the vehicle 900. The electric wires 91, 92, 101, 102, 161, 162, 162, 820 may be connected to the branch box 15 by a connector, may be screwed, or may be connected by another method.

It can be said that the branch box 15 branches the electric wire 161 electrically connected to the positive terminal 21 of the main battery 2 into a plurality of electric wires 91, 101, 810. Then, a plurality of electric wires 811 and 812 are splice-connected to the electric wire 810 electrically connected to the positive terminal 21 of the main battery 2 extending from the branch box 15.

Further, it can be said that the branch box 15 branches the electric wire 162 electrically connected to the negative terminal 22 of the main battery 2 into a plurality of electric wires 92, 102, 820. Then, a plurality of electric wires 821 and 822 are splice-connected to the electric wire 820 electrically connected to the negative terminal 22 of the main battery 2 extending from the branch box 15. The branch box 15 may be provided with a fuse for preventing an overcurrent from flowing through the electric wires 91, 92, 101, 102 and the like.

As shown in FIG. 7, the electric wires 814 and 824 of the wiring members 8b connected to the plurality of equipment devices 70 to 73 may extend from the branch box 15. In this case, one end of the core wire of the electric wire 814 is electrically connected to the positive bus bar in the branch box 15. Further, one end of the core wire of the electric wire 824 is electrically connected to the minus side bus bar in the branch box 15. Then, one end of the electromagnetic shield member of the electric wires 814 and 824 is electrically connected to, for example, the metal outer case of the branch box 15.

In the example of FIG. 7, the branch box 15 branches the electric wire 161 electrically connected to the positive terminal 21 of the main battery 2 into a plurality of electric wires 91, 101, 814. Then, a plurality of electric wires 815 to 818 are splice-connected to the electric wires 814 extending from the branch box 15. Further, the branch box 15 branches the electric wire 162 electrically connected to the negative terminal 22 of the main battery 2 into a plurality of electric wires 92, 102, 824. Then, a plurality of electric wires 825 to 828 are splice-connected to the electric wires 824 extending from the branch box 15.

Further, as shown in FIG. 8, the electric wires 814 and 824 of the wiring members 8b connected to the plurality of equipment devices 70 to 73 and the electric wires 810 and 820 of the wiring members 8a connected to the plurality of equipment devices 74 and 75. May extend from the branch box 15. In this case, the branch box 15 branches the electric wire 161 electrically connected to the positive terminal 21 of the main battery 2 into a plurality of electric wires 91, 101, 810, 814. Then, a plurality of electric wires are splice-connected to each of the electric wires 810 and 814 extending from the branch box 15. Further, the branch box 15 branches the electric wire 162 electrically connected to the negative terminal 22 of the main battery 2 into a plurality of electric wires 92, 102, 820, 824. Then, a plurality of electric wires are splice-connected to each of the electric wires 820 and 824 extending from the branch box 15.

Even when the branch box 15 is provided, the wiring member 9 may be directly connected to the connection terminal 20 of the main battery 2 as in FIG. Further, even when the branch box 15 is provided, the wiring member 10 may be directly connected to the connection terminal 20 of the main battery 2.

In this way, even when a plurality of electric wires are splice-connected to the electric wire extending from the branch box 15, the same as in the case where the plurality of electric wires are splice-connected to the electric wire directly connected to the main battery 2. The effect of can be obtained.

Further, when a plurality of electric wires are splice-connected to the electric wires extending from the branch box 15, the branch box 15 can be made smaller than the case where the plurality of electric wires extend directly from the branch box 15. Further, it is possible to cope with an increase or decrease in the number of connection targets for a plurality of electric wires splice-connected to the electric wires extending from the branch box 15 by changing the wiring member without changing the branch box 15. Therefore, the number of types of branch boxes 15 (in other words, product numbers) can be reduced. For example, when the number of equipment 7 is increased from 2 shown in FIG. 6 to 4 shown in FIG. 7, the branch box 15 remains as it is, and the positive side wiring member 81a and the negative side wiring member 82a are left as they are. Can be dealt with by changing the above to the plus side wiring member 81b and the minus side wiring member 82b, respectively.

In the above example, the vehicle 900 was an automobile vehicle, but it may be another vehicle. Further, the battery connection system 1 does not have to be mounted on the vehicle. Further, the battery connection system 1 does not have to include the sub-battery 3. In this case, the output voltage of the main battery 2 may be 12V, 24V, or several tens of V.

Further, one end of the electric wire 91 connected to the power feeding unit 4 on the side opposite to the power feeding unit 4 side may be splice-connected to the electric wire 810 together with the electric wires 811 and 812 of the positive side wiring member 81a. Further, one end of the electric wire 92 connected to the power feeding unit 4 on the side opposite to the power feeding unit 4 side may be splice-connected to the electric wire 820 together with the electric wires 821 and 822 of the minus side wiring member 82a.

Further, one end of the electric wire 101 connected to the inverter 6 on the opposite side to the inverter 6 side may be splice-connected to the electric wire 810 together with the electric wires 811 and 812 of the positive side wiring member 81a. Further, one end of the electric wire 102 connected to the inverter 6 on the side opposite to the inverter 6 side may be splice-connected to the electric wire 820 together with the electric wires 821 and 822 of the minus side wiring member 82a.

As described above, the battery connection system has been described in detail, but the above description is an example in all aspects, and this disclosure is not limited thereto. In addition, the various examples described above can be applied in combination as long as they do not contradict each other. And it is understood that innumerable examples not illustrated can be assumed without departing from the scope of this disclosure.

1 Battery connection system 2 Main battery (battery)
3 Sub-battery 4 Power supply 5 Motor 6 Inverter 7 Equipment 8a Wiring member 8b Wiring member 9 Wiring member 10 Wiring member 15 Branch box 16 Wiring member 20 Connection terminal 20a Connection terminal (1st connection terminal)
20b connection terminal 20c connection terminal 20d connection terminal (second connection terminal)
21 Positive terminal (1st positive terminal, 2nd positive terminal)
22 Negative terminal (1st negative terminal, 2nd negative terminal)
70 Equipment equipment 71 Equipment equipment 72 Equipment equipment 73 Equipment equipment 74 Equipment equipment 75 Equipment equipment 81a Positive side wiring member 81b Positive side wiring member 82a Negative side wiring member 82b Negative side wiring member 84 terminal 85 Insulation member 86 Electromagnetic shield pipe 87 Caulking member 88 Waterproof member 88a Resin pipe 88b Rubber stopper 88c Rubber stopper 89a Bundling band 89b Bundling band 91 Electric wire 91a Connection terminal 92 Electric wire 92a Connection terminal 101 Electric wire 101a Connection terminal 102 Electric wire 102a Connection terminal 161 Electric wire 162 Electric wire 810 Electric wire 5 wires)
810a Connection terminal 810b Core wire 810c Internal insulation coating 810d Electromagnetic shield member 810e External insulation coating 811 Electric wire (2nd electric wire, 6th electric wire)
811b Core wire 811c Internal insulation coating 811d Electromagnetic shield member 811e External insulation coating 812 Electric wire (2nd electric wire, 6th electric wire)
812b Core wire 812c Internal insulation coating 812d Electromagnetic shield member 812e External insulation coating 813 Splice structure 814 Electric wire (first electric wire)
814a connection terminal 815 electric wire (second electric wire)
816 electric wire (second electric wire)
817 electric wire (second electric wire)
818 electric wire (second electric wire)
819 Splice structure 820 electric wire (3rd electric wire, 7th electric wire)
820a connection terminal 821 electric wire (4th electric wire, 8th electric wire)
822 electric wire (4th electric wire, 8th electric wire)
823 Splice structure 824 Electric wire (3rd electric wire)
824a connection terminal 825 electric wire (fourth electric wire)
826 electric wire (4th electric wire)
827 electric wire (4th electric wire)
828 electric wire (4th electric wire)
829 Splice structure 900 vehicle

Claims (12)

1. With the main battery
   With the sub battery
   The first electric wire electrically connected to the main battery and
   A battery connection system including a plurality of second electric wires spliced to the first electric wire.
2. The battery connection system according to claim 1.
   A battery connection system in which the first wire is directly connected to the main battery.
3. The battery connection system according to claim 1.
   A battery connection system further comprising a branch box for branching an electric wire electrically connected to the main battery into a plurality of electric wires including the first electric wire.
4. The battery connection system according to any one of claims 1 to 3.
   The main battery has a first connection terminal including a first positive terminal and a first negative terminal.
   The first electric wire is electrically connected to the first positive terminal and is connected to the first positive terminal.
   The third electric wire electrically connected to the first negative terminal and
   A battery connection system further comprising a plurality of fourth electric wires spliced to the third electric wire.
5. The battery connection system according to claim 4.
   The main battery has a second connection terminal including a second positive terminal and a second negative terminal.
   The fifth electric wire electrically connected to the second positive terminal and
   A plurality of sixth electric wires spliced to the fifth electric wire, and
   The 7th electric wire electrically connected to the 2nd negative terminal and
   A battery connection system further comprising a plurality of eighth electric wires spliced to the seventh electric wire.
6. The battery connection system according to any one of claims 1 to 5.
   The main battery is a battery connection system that generates electric power for running a vehicle.
7. With the battery
   The first electric wire directly connected to the battery and
   A battery connection system including a plurality of second electric wires spliced to the first electric wire.
8. The battery connection system according to claim 7.
   The battery has a first connection terminal including a first positive terminal and a first negative terminal.
   The first electric wire is directly connected to the first positive terminal and is connected to the first positive terminal.
   With the third electric wire directly connected to the first negative terminal,
   A battery connection system further comprising a plurality of fourth electric wires spliced to the third electric wire.
9. The battery connection system according to claim 8.
   The battery has a second connection terminal including a second positive terminal and a second negative terminal.
   The fifth electric wire directly connected to the second positive terminal and
   A plurality of sixth electric wires spliced to the fifth electric wire, and
   The 7th electric wire directly connected to the 2nd negative terminal and
   A battery connection system further comprising a plurality of eighth electric wires spliced to the seventh electric wire.
10. The battery connection system according to any one of claims 7 to 9.
    The battery is a battery connection system that generates electric power for traveling a vehicle.
11. The battery connection system according to any one of claims 1 to 10.
    A battery connection system in which each of the first electric wire and the plurality of second electric wires is a shielded electric wire.
12. The battery connection system according to any one of claims 1 to 11.
    A battery connection system in which the plurality of second electric wires are electrically connected to a plurality of equipment mounted on the vehicle.

Images