JP2017094788A - Vehicular sub junction box set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve sharing of design for a vehicular junction box (JB).SOLUTION: A vehicular SJB set 200 includes: a traveling sub junction box (SJB)10 mounted with a main relay 12 turning a power supply cable run 15 from a battery to a load ON/OFF; a first charging SJB50 mounted with a first charging relay 52 turning a first charging cable run 55 performing charging from an AC external power source to the battery ON/OFF; and a second charging SJB30 mounted with a second charging relay 32 turning a second charging cable run 35 performing charging from a DC external power source to the battery ON/OFF, connects the first charging SJB50 to the traveling SJB10, or sequentially connects the second charging SJB30 and the first charging SJB50 to the traveling SJB10, and constitutes one vehicular JB. The second charging SJB30 has a through-cable run 39 electrically connecting the traveling SJB10 and the first charging SJB50.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a structure of a vehicle sub-junction set that is connected to form one vehicle junction box.

  In recent years, many hybrid vehicles using an engine and a motor generator as drive sources have been used. The hybrid vehicle is mounted with a power storage device such as a capacitor or a battery that supplies driving power to the motor generator and charges regenerative power from the motor generator.

  A hybrid vehicle requires a system main relay for turning on / off a power supply circuit between the power storage device and the motor generator, and a fuse for protecting the battery when an overcurrent or overvoltage occurs. These relays and fuses are mounted on a vehicle by being attached to a junction box that electrically connects each terminal of the relays and fuses and the end of the cable of the power supply circuit (for example, see Patent Document 1).

  In addition, vehicles have been diversified. For example, even one vehicle type uses a key to activate the vehicle and another uses a push switch. Since the power supply system that starts the vehicle by the key does not perform controller control, it has a circuit configuration that uses only a switch. However, in the case that the vehicle is started by the push switch, a relay for controlling the signal of the push switch is used. Circuit configuration. As described above, even if one vehicle type is used, there are cases where a relay is used in the start circuit of the vehicle and no relay is necessary.

  Therefore, a junction box having a basic circuit capable of operating the electrical components of the vehicle, a sub junction box having a circuit for starting the vehicle by a key, and a sub junction box having a circuit for starting the vehicle by a push switch, And a method of changing the sub junction box attached to the junction box according to the specification of the vehicle has been proposed (for example, see Patent Document 2).

JP 2004-282822 A JP 2009-165328 A

  By the way, in recent years, a plug-in hybrid vehicle has appeared that can charge a battery for driving a vehicle with a home AC power source or a DC power source such as a quick charger to enable long-distance electric running. For this reason, hybrid vehicles are charged from standard specifications that do not require external charging, AC charging specifications that allow charging from AC external power supplies such as household AC power supplies, and both AC external power supplies and DC external power supplies such as quick chargers. As with the AC / DC charging specifications that can be used, several types of specifications have appeared even in one vehicle type depending on whether external charging is possible and the type of external power supply.

  A junction box used in such a hybrid vehicle has, for example, a connector for inserting a relay or a fuse on one side, a connector for inserting a power cable on the other side, and a relay-side connector and a power cable inside. Many are configured to arrange internal wiring for connecting to the side connector. In the junction box, the position of the connector and the arrangement of the internal wiring differ depending on the number and capacity of relays to be attached. For this reason, conventionally, it has been necessary to individually design junction boxes having different wiring arrangements and shapes depending on whether external charging is possible or not, and it has been difficult to share the design.

  Accordingly, an object of the present invention is to share the design of a vehicle junction box even when the types of external charging power sources are different.

  The vehicle sub-junction box set according to the present invention includes a traveling sub-junction box to which a main relay for turning on / off a power supply circuit from a vehicle driving battery to a load is attached, and charging the battery from a first external power source. A first charging sub-junction box to which a first charging relay for turning on / off a first charging circuit to be performed is attached, and a second charging for turning on / off a second charging circuit for performing rapid charging from the second external power source to the battery. A second charging sub-junction box to which a relay is attached, and the first charging sub-junction box is connected to the traveling sub-junction box, or the second charging sub-junction box and the second 1 charging sub junction box Are connected in order to form a vehicular junction box, and the second charging sub-junction box electrically connects the traveling sub-junction box and the first charging sub-junction box. It has the penetration electric circuit connected to this.

  In the present invention, the vehicle junction box can be configured according to the type of the external charging power source by combining the traveling sub junction box, the first charging sub junction box, and the second charging sub junction box. Even when the type of charging power source is different, the design of the junction box for vehicles can be shared.

It is a top view which shows the sub junction box set in embodiment of this invention. This figure shows a state in which a relay and a limiting resistor are attached to each sub-chunk box. It is an elevation view which shows the sub junction box set in embodiment of this invention. This figure shows a state in which a relay and a limiting resistor are attached to each sub-chunk box. It is a systematic diagram which shows the vehicle power supply system at the time of comprising the junction box mounted in the vehicle which can charge a battery with alternating current external power supply or direct current external power supply combining the sub junction box set shown in FIG. FIG. 4 is an explanatory diagram showing a current flow when the vehicle power supply system shown in FIG. FIG. 4 is an explanatory diagram showing a current flow during charging of the vehicle power supply system shown in FIG. 3. It is explanatory drawing which shows the power supply system for vehicles at the time of comprising the junction box mounted in the vehicle which can charge a battery with alternating current external power supply combining the sub junction box set to which the relay shown in FIG. 1 and the limiting resistance were attached. . It is a top view which shows the junction box set in other embodiment of this invention. This figure shows a state in which a relay and a limiting resistor are attached to each sub-chunk box. It is a systematic diagram which shows the power supply system for vehicles at the time of comprising the junction box mounted in the vehicle which can charge a battery with an alternating current external power supply combining the junction box set shown in FIG. It is a systematic diagram which shows the power supply system for vehicles at the time of comprising the other junction box mounted in the vehicle which can charge a battery with alternating current external power supply combining the junction box set shown in FIG.

  Hereinafter, a vehicle sub-junction box set 200 according to an embodiment of the present invention will be described with reference to the drawings. 1 and 2 conceptually show the plane, elevation and internal structure of each sub-junction box 10, 30, 50. FIG.

  As shown in FIGS. 1 and 2, the vehicle sub-junction box set 200 of this embodiment turns on the power supply circuit 15 from the vehicle driving main battery 81 shown in FIG. 3 to a load 84 such as an inverter or a motor. A traveling sub-junction box 10 to which the main relay 12 to be turned off is attached, and a first charging circuit 55 for charging the main battery 81 from an AC external power source 91 such as a household AC power source as the first external power source shown in FIG. The main battery 81 is charged from the first charging sub-junction box 50 to which the first charging relay 52 for turning on and off is attached and the DC external power source 101 such as the quick charger as the second external power source shown in FIG. A second charging sub-junction box to which a second charging relay 32 for turning on / off the second charging circuit 35 is attached. It has 0 and, the.

  As shown in FIG. 3, when the second charging sub-junction box 30 and the first charging sub-junction box 50 are sequentially connected to the traveling sub-junction box 10, the main battery 81 is connected by the DC external power supply 101 or the AC external power supply 91. A junction box 201 for a plug-in hybrid vehicle having a specification for charging can be configured. 3, the main relay 12, the main precharge relay 63, the main limiting resistor 62, the first charging relay 52, the first precharging relay 73, the first limiting resistor 72, and the second charging relay 32 are attached to the junction box 201. A power supply system 901 when a battery 81, a load 84, a DC external power supply 101, a charger 96, and an AC external power supply 91 are connected is shown. As shown in FIG. 6, when the traveling sub-junction box 10 and the first charging sub-junction box 50 are connected, a junction box 202 for a plug-in hybrid vehicle having a specification in which the main battery 81 is charged by the AC external power source 91 is provided. Can be configured. 6, the main relay 12, the main precharge relay 63, the main limiting resistor 62, the first charging relay 52, the first precharge relay 73, and the first limiting resistor 72 are attached to the junction box 202, the main battery 81, the load 84, A power supply system 902 is shown in a state where a charger 96 and an AC external power supply 91 are connected.

  Hereinafter, the details of the travel sub junction box 10, the first charging sub junction box 50, and the second charging sub junction box 30 will be described with reference to FIGS.

  As shown in FIGS. 1A and 2A, the traveling sub-junction box 10 is a box-shaped rectangular parallelepiped having a thickness t and a width D, and has four side surfaces 11a, 11b, 11c, and 11d. ing. On the upper surface 11e of the traveling sub-junction box 10, connectors C11 and C12 into which the terminals of the main relay 12 are inserted, connectors C13 and C14 into which the terminals of the main precharge relay 63 are inserted, and a connector C15 into which the terminals of the main limiting resistor 62 are inserted. , C16 are arranged. FIGS. 1A and 2A show a state in which the terminals of the main relay 12, the main precharge relay 63, and the main limiting resistor 62 are inserted into the connectors C11 to C16.

  As shown in FIG. 2A, between the load 84 and the battery cable connecting terminal 20 into which the terminal 83 of the cable 82 from the main battery 81 shown in FIG. The load cable connection terminal 21 into which the terminal 86 of the cable 85 is inserted is arranged. As shown in FIG. 3, the first terminal 16 and the second terminal 18 are arranged on the side surface 11 d to which the second charging sub junction box 30 is connected. Further, the side surface 11d is provided with two square concave portions 22, and a central portion of the concave portion 22 is provided with a hole 23 into which a fastening bolt is inserted.

  Inside the traveling sub-junction box 10, a battery-side internal electrical path 13 that connects between the battery cable connection terminal 20 and a connector C <b> 11 into which one terminal of the main relay 12 is inserted, a load cable connection terminal 21, and the main relay 12. A load-side internal circuit 14 that connects the connector C12 into which the other terminal is inserted is disposed. The battery-side internal circuit 13 and the load-side internal circuit 14 constitute a power supply circuit 15 that supplies power from the main battery 81 to the load 84 shown in FIG.

  Further, in the traveling sub-junction box 10, a first terminal internal electric circuit 17 that connects the first terminal 16 and the battery side internal electric circuit 13, a second terminal 18 that connects the load side internal electric circuit 14 and the second terminal 18. A terminal internal electric circuit 19, an internal electric wire 61 connecting between the battery-side internal electric circuit 13 and a connector C15 into which one terminal of the main limiting resistor 62 is inserted, and a connector C16 into which the other terminal of the main limiting resistor 62 is inserted An internal electric wire 67 that connects between the connector C13 into which one terminal of the main precharge relay 63 is inserted, and an internal that connects between the connector C14 into which the other terminal of the main precharge relay 63 is inserted and the load-side internal circuit 14 An electric wire 64 is arranged.

  As shown in FIGS. 1C and 2C, the first charging sub-junction box 50 is a box-shaped rectangular parallelepiped having a thickness t and a width D, like the traveling sub-junction box 10, and has four side surfaces. 51a, 51b, 51c, 51d. On the upper surface 51e of the first charging sub-junction box 50, connectors C51 and C52 into which terminals of the first charging relay 52 are inserted, connectors C53 and C54 into which terminals of the first precharge relay 73 are inserted, and a first limiting resistor 72 Connectors C55 and C56 into which these terminals are inserted are arranged. FIGS. 1B and 2B show a state where the terminals of the first charging relay 52, the first precharge relay 73, and the first limiting resistor 72 are inserted into the connectors C51 to C56. .

  As shown in FIG. 2C, the first charging cable connection terminal 56 into which the terminal 98 of the cable 97 from the charger 96 shown in FIG. 3 is inserted is arranged on the lower surface 51f of the first charging sub-junction box 50. ing. As shown in FIGS. 3 and 5, the first connector 57 is disposed on the side surface 51 a connected to the traveling sub-junction box 10 and the second charging sub-junction box 30. Further, two convex portions 24 that fit into the concave portions 22 are provided at positions corresponding to the two concave portions 22 provided on the side surface 11d of the traveling sub junction box 10 on the side surface 51a. A hole 25 into which a bolt is inserted is provided.

  Inside the first charging sub-junction box 50, a first charging-side internal electric circuit 53 that connects between the first charging cable connection terminal 56 and a connector C51 into which one terminal of the first charging relay 52 is inserted, A first connection-side internal electric circuit 54 that connects between one connector 57 and a connector C52 into which the other terminal of the first charging relay 52 is inserted is disposed. The first charging side internal electric circuit 53 and the first connection side internal electric circuit 54 constitute a first charging electric circuit 55 for charging the main battery 81 from the AC external power source 91 shown in FIG.

  Further, in the first charging sub-junction box 50, an internal electric wire 71 connecting the connector C55 into which one terminal of the first limiting resistor 72 is inserted and the first charging side internal electric circuit 53, and a first limiting An internal electric wire 79 connecting between the connector C56 into which the other terminal of the resistor 72 is inserted and the connector C53 into which one terminal of the first precharge relay 73 is inserted, and the other terminal of the first precharge relay 73 are inserted. An internal electric wire 74 that connects between the connector C54 and the first connection side internal electric circuit 54 is disposed.

  As shown in FIGS. 1B and 2B, the second charging sub-junction box 30 is a box type having a thickness t and a width D, like the traveling sub-junction box 10 and the first charging sub-junction box 50. Which has four side surfaces 31a, 31b, 31c and 31d. Connectors C31 and C32 into which the terminals of the second charging relay 32 are inserted are arranged on the upper surface 31e of the second charging sub-junction box 30. FIG. 1 shows a state where the terminals of the second charging relay 32 are inserted into the connectors C31 and C32.

  2B, the second charging cable connection terminal 40 into which the terminal 106 of the cable 105 from the DC external power source 101 shown in FIG. 3 is inserted is disposed on the lower surface 31f of the second charging sub-junction box 30. Has been. As shown in FIG. 3, the second connector 36 and the third connector 37 are arranged on the side surface 31 a connected to the traveling sub junction box 10. Further, two convex portions 24 fitted into the concave portions 22 are provided at positions corresponding to the two concave portions 22 provided on the side surface 11d of the traveling sub junction box 10 on the side surface 31a. A hole 25 into which a bolt is inserted is provided.

  As shown in FIGS. 1 (b) and 2 (b), on the side opposite to the side surface 31a, on the side surface 31d to which the first charging sub-junction box 50 is connected as shown in FIG. Is provided. Further, the side surface 31d is provided with two concave portions 22 like the side surface 11d of the traveling sub junction box 10, and a central portion of the concave portion 22 is provided with a hole 23 into which a fastening bolt is inserted.

  Inside the second charging sub-junction box 30, a second charging-side internal electrical path 33 that connects between the second charging cable connection terminal 40 and a connector C31 into which one terminal of the second charging relay 32 is inserted, 2 has a second connection side internal electric circuit 34 for connecting between the connector 36 and a connector C32 into which the other terminal of the second charging relay 32 is inserted. The second charging side internal electric circuit 33 and the second connection side internal electric circuit 34 constitute a second charging electric circuit 35 for charging the main battery 81 from the DC external power source 101 shown in FIG.

  The second charging sub-junction box 30 has a second charging sub-junction box 30 connected to a third connector 37 provided on the side surface 11a and a fourth connector 38 provided on the side surface 11d. A through electric circuit 39 penetrating the inside is provided.

  The third connector 37 and the second connector 36 of the second charging sub junction box 30 are respectively inserted into the first terminal 16 and the second terminal 18 provided on the side surface 11d of the traveling sub junction box 10 configured as described above. The convex portion 24 provided on the side surface 31a of the second charging sub-junction box 30 is fitted into the concave portion 22 provided on the side surface 11d of the traveling sub-junction box 10 so that the positions of the holes 23 and the holes 25 are aligned with each other. Insert and tighten. Next, the 4th connector 38 provided in the side 31d of the 2nd charge subjunction box 30 and the 1st connector 57 provided in the side 51a of the 1st charge subjunction box 50 are connected, and the 2nd charge subjunction is connected. The convex portion 24 provided on the side surface 51a of the first charging sub-junction box 50 is fitted into the concave portion 22 provided on the side surface 31d of the box 30, and the fastening bolts are inserted by aligning the positions of the holes 23 and 25. And tighten. As described above, when the second charging sub-junction box 30 and the first charging sub-junction box 50 are sequentially connected to the traveling sub-junction box 10, the main battery 81 is charged by the AC external power source 91 and the DC external power source 101 as shown in FIG. The junction box 201 for the plug-in hybrid vehicle having the specifications to be configured can be configured.

  Further, as shown in FIG. 3, the terminal 83 of the cable 82 from the main battery 81 is inserted into the battery cable connection terminal 20 of the traveling sub junction box 10, and the terminal of the cable 85 between the load 84 and the load 84 is connected to the load cable connection terminal 21. 86, the terminal 106 of the cable 105 from the DC external power source 101 such as a quick charger is inserted into the second charging cable connection terminal 40 of the second charging sub-junction box 30, and the first charging of the first charging sub-junction box 50 is performed. The terminal 98 of the cable 97 from the charger 96 is inserted into the cable connection terminal 56. A charging connector 93 of a charging cable 92 of an AC external power supply 91 such as a household AC power supply is inserted into an AC external power supply connection terminal 94 attached to the vehicle, and a charging cable of the DC external power supply 101 is connected to a DC external power supply connection terminal 104. The charging connector 103 of 102 is inserted. Thus, a power supply system 901 that charges the main battery 81 by the AC external power supply 91 and the DC external power supply 101 is configured.

  The operation of the power supply system 901 will be briefly described with reference to FIGS. As shown in FIG. 4, when the AC external power supply 91 and the DC external power supply 101 are not connected, the vehicle turns on the main precharge relay 63 and the main limiting resistor as shown by the arrow R <b> 1 in FIG. 4. The capacitor of the inverter (included in the load 84) is charged through 62, and when charging of the capacitor is completed, the main relay 12 is turned on to connect the main battery 81 and the load 84, and the power of the main battery 81 is changed to R2 in FIG. As shown in FIG. 4, the vehicle is driven by supplying it to the inverter of the load 84 and the motor generator for driving the vehicle. Further, the regenerative electric power while the vehicle is traveling is charged from the load 84 to the main battery 81 through the main relay 12, as indicated by an arrow R2 in FIG.

  When an AC external power source 91 such as a household AC power source is connected, AC power of the AC external power source 91 is converted from AC to DC by a charger 96 and also converted to a voltage that can charge the main battery 81. . When the first charging relay 52 is turned on, the converted DC power is supplied from the charger 96 to the first charging relay 52, the first connection side internal circuit 54, and the first connector 57, as shown by an arrow R6 in FIG. Through the fourth connector 38 of the second charging sub-junction box 30. Then, as indicated by an arrow R5 in FIG. 5, the AC power enters the third connector 37 of the second charging subjunction box 30 through the through connector 39 from the fourth connector 38, and travels from the third connector 37 to the traveling subjunction. The first terminal 16 of the box 10 is entered, and the main battery 81 is charged from the first terminal 16 through the first terminal internal electric circuit 17 and the battery side internal electric circuit 13. When the main battery 81 is charged from the AC external power supply 91, the first precharge relay 73 is turned on and the first charge relay 52 is turned on as shown by an arrow R7 in FIG. Charging of the main battery 81 is started with a small current through the limiting resistor 72, and then the first charging relay 52 is turned on to charge the main battery 81 with a large current as shown by an arrow R6 in FIG. Also good.

  When the DC external power supply 101 such as a quick charger is connected and the second charging relay 32 is turned on, the DC power of the DC external power supply 101 is supplied from the DC external power supply 101 to the second charge as shown by an arrow R4 in FIG. It enters the second terminal 18 of the traveling sub-junction box 10 through the relay 32, the second connection side internal electric circuit 34, and the second connector 36. When the main relay 12 is turned on, the DC power rapidly charges the main battery 81 through the second terminal 18, the second terminal internal circuit 19, the main relay 12, and the battery side internal circuit 13. During the quick charging, a current larger than the current when the main battery 81 is charged by the AC external power source 91 such as a household AC power source flows through the second charging circuit 35. When charging the main battery 81 from the DC external power source 101, before turning on the main relay 12, the main precharge relay 63 is turned on with a small current through the main limiting resistor 62 as shown by an arrow R3 in FIG. Charging of the main battery 81 may be started, and then the main relay 12 may be turned on so that the main battery 81 is rapidly charged with a large current as indicated by an arrow R4 in FIG.

  In the vehicle sub-junction box set 200 of this embodiment, a second charging sub-junction box 30 in which a large amount of charging power from the DC external power supply 101 flows adjacently is connected to the traveling sub-junction box 10 connected to the main battery 81 and rapidly connected. The distance of the electric path through which a large current flows during charging can be shortened, and heat generation of the junction box 201 when the main battery 81 is rapidly charged by the DC external power source 101 can be suppressed. Further, the vehicle sub-junction box set 200 of the present embodiment includes the second charging sub-junction box 30 by arranging the third connector 37, the fourth connector 38, and the through-electric path 39 in the second charging sub-junction box 30. Even when connected between the traveling sub-junction box 10 and the first charging sub-junction box 50, the main battery 81 can be charged from the first charging sub-junction box 50 via the traveling sub-junction box 10.

  Further, as shown in FIG. 6, the first connector 57 of the first charging sub-junction box 50 is inserted into the first terminal 16 provided on the side surface 11 d of the traveling sub-junction box 10, and When the convex portion 24 provided on the side surface 51a of the first charging sub-junction box 50 is fitted into the provided concave portion 22 and the fastening bolts are inserted and tightened with the positions of the hole 23 and the hole 25, FIG. A junction box 202 for a plug-in hybrid vehicle having a specification for charging the main battery 81 with an AC external power source 91 as shown in FIG.

  As described with reference to FIG. 3, when the main battery 81 and the load 84 are connected to the traveling sub junction box 10 and the charger 96 and the AC external power source 91 are connected to the first charging sub junction box 50, the AC A power supply system 902 that charges the main battery 81 is configured by the external power supply 91. The operation when the vehicle is started, traveled, and regenerated by the power supply system 902 is the same as the operation of the power supply system 901 described with reference to FIG. 4, and the main battery 81 is charged by the AC external power supply 91. In the operation of the power supply system 901 described with reference to FIG. 5, the DC power for charging converted by the charger 96 does not pass through the through-electric path 39 of the second charging subjunction box 30, The only difference is that the main battery 81 is charged from the first connector 57 of the charging sub-junction box 50 through the first terminal 16 and the first terminal internal electric path 17 of the traveling sub-junction box 10.

  Further, the traveling sub-junction box 10 alone can be used as a junction box for a hybrid vehicle of a normal specification that does not perform external charging.

  As described above, the vehicle sub-junction box set 200 according to the present embodiment can determine whether or not the external charging power source is available by changing the connection and combination without changing the design of the sub-junction boxes 10, 30, and 50. Or since the junction box for vehicles according to the kind of external power source can be constituted, even when the kind of external charging power source differs, the design of the junction box for vehicles can be shared.

  Next, a vehicle sub-junction box set 300 according to another embodiment of the present invention will be described with reference to FIGS. Parts similar to those of the embodiment described with reference to FIG. 1 to FIG.

  As shown in FIG. 7, the vehicle sub-junction box set 300 of the present embodiment includes a traveling precharge sub-junction box 320, a traveling sub-junction box 310, a second charging sub-junction box 30, a first charging sub-junction box 350, The first precharge sub junction box 360 is configured.

  The traveling precharge sub junction box 320 is obtained by dividing the main precharge relay 63 and the main limiting resistor 62 of the traveling sub junction box 10 described with reference to FIGS. 1 to 6 as separate sub junction boxes. The traveling sub-junction box 310 is configured such that the main relay 12 portion of the traveling sub-junction box 10 described with reference to FIGS. 1 to 6 is another sub-junction box. The first precharge sub-junction box 360 is different from the first pre-charge relay 73 of the first charge sub-junction box 50 described with reference to FIGS. The first charging sub-junction box 350 is divided as a junction box, and the first charging relay 52 portion of the first charging sub-junction box 50 described with reference to FIGS. 1 to 6 is another sub-junction box. It is what.

  As shown in FIG. 7A, the traveling precharge sub-junction box 320 is a box-shaped rectangular parallelepiped having a thickness t and a width D, and has four side surfaces 321a, 321b, 321c, and 321d. On the upper surface 321e of the traveling precharge sub-junction box 320, connectors C13 and C14 into which the terminals of the main precharge relay 63 are inserted and connectors C15 and C16 into which the terminals of the main limiting resistor 62 are inserted are arranged. FIG. 7A shows a state where the terminals of the main precharge relay 63 and the main limiting resistor 62 are inserted into the connectors C13 to C16.

  A first pre-connector 65 and a second pre-connector 66 are disposed on the side surface 321d to which the traveling sub junction box 310 is connected. Also, the side surface 321d is provided with two rectangular recesses 22 similar to those provided on the side surface 11d of the traveling sub-junction box 10 described with reference to FIGS. Is provided.

  Inside the first precharge sub-junction box 360, there are an internal electric wire 361 connecting the first preconnector 65 and the connector C15, an internal electric wire 67 connecting the connector C16 and the connector C13, and a second preconnector 66. An internal electric wire 364 that connects the connector C14 is disposed.

  As shown in FIG. 7B, the traveling sub-junction box 310 is a box-shaped rectangular parallelepiped having a thickness t and a width D, and has four side surfaces 311a, 311b, 311c, and 311d. Connectors C12 and C13 into which the terminals of the main relay 12 are inserted are arranged on the upper surface 311e of the traveling sub junction box 310. Further, the battery cable connection terminal 20 and the load cable connection terminal 21 are arranged on the lower surface 311f. FIG. 7B shows a state where the terminals of the main relay 12 are inserted into the connectors C11 and C12.

  A first pre-terminal 26 and a second pre-terminal 28 are arranged on the side surface 311a to which the traveling precharge sub junction box 320 is connected. Also, the side surface 311a is provided with two convex portions 24 similar to those provided on the side surface 31a of the second charging sub-junction box 30 described with reference to FIGS. Are provided with holes 25.

  The traveling sub-junction box 310 has an internal wire 27 that connects the first pre-terminal 26 and the battery-side internal circuit 13, and an internal wire 29 that connects the second pre-terminal 28 and the load-side internal circuit 14. Is arranged. Except for the above, the configuration is the same as that of the traveling sub-junction box 10 described with reference to FIGS.

  As shown in FIG. 7C, the second charging sub-junction box 30 is the same as that described with reference to FIGS.

  As shown in FIG. 7E, the first precharge sub-junction box 360 is a box-shaped rectangular parallelepiped having a thickness t and a width D, and has four side surfaces 361a, 361b, 361c, and 361d. On the upper surface 361e of the first precharge sub junction box 360, connectors C53 and C54 into which the terminals of the first precharge relay 73 are inserted and connectors C55 and C56 into which the terminals of the first limiting resistor 72 are inserted are arranged. . FIG. 7E shows a state where the terminals of the first precharge relay 73 and the first limiting resistor 72 are inserted into the connectors C53 to C56.

  A third pre-connector 75 and a fourth pre-connector 76 are disposed on the side surface 361a to which the first charging sub junction box 350 is connected. Also, the side surface 361a is provided with two rectangular recesses 22 similar to those provided on the side surface 11d of the traveling sub-junction box 10 described with reference to FIGS. Is provided.

  Inside the first precharge sub-junction box 360, there are an internal electric wire 371 connecting the third preconnector 75 and the connector C55, an internal electric wire 79 connecting the connector C56 and the connector C53, and a fourth preconnector 76. An internal electric wire 374 that connects the connector C54 is disposed.

  As shown in FIG. 7D, the first charging sub-junction box 350 is a box-shaped rectangular parallelepiped having a thickness t and a width D, and has four side surfaces 351a, 351b, 351c, and 351d. Connectors C51 and C52 into which the terminals of the first charging relay 52 are inserted are arranged on the upper surface 351e of the first charging sub-junction box 350. A first charging cable connection terminal 56 is disposed on the lower surface 351f. FIG. 7D shows a state in which the terminals of the first charging relay 52 are inserted into the connectors C51 and C52.

  A third pre-terminal 58 and a fourth pre-terminal 59 are arranged on the side surface 351d to which the first precharge sub junction box 360 is connected. Further, the side surface 351a connected to the side surface 351d and the second charging sub junction box 30 is the same as that provided on the side surface 31a of the second charging sub junction box 30 described with reference to FIGS. The two convex portions 24 are provided, and the convex portion 24 is provided with a hole 25.

  The first charging sub-junction box 350 includes an internal electric wire 77 connecting the third pre-terminal 58 and the first charging-side internal electric circuit 53, a fourth pre-terminal 59, and the first connecting-side internal electric circuit 54. An internal electric wire 78 for connecting is disposed. Except for the above, the configuration is the same as that of the first charging sub junction box 50 described with reference to FIGS.

  Of the vehicle sub-junction box set 300 configured as described above, as shown in FIG. 8, when the traveling precharge sub-junction box 320, the traveling sub-junction box 310, and the first charging sub-junction box 350 are connected in order, A junction box 301 for a plug-in hybrid vehicle having a specification for charging the main battery 81 from the AC external power source 91 without a limiting resistor can be configured.

  Further, as shown in FIG. 9, when the traveling sub-junction box 310 and the first charging sub-junction box 350 are connected in order, the main battery 81 and the load 84 can be connected without limiting resistance, and the AC external power supply 91 without limiting resistance. Thus, a junction box 302 for a plug-in hybrid vehicle having a specification for charging the main battery 81 can be configured.

  Further, when the traveling precharge sub-junction box 320, the traveling sub-junction box 310, the second charging sub-junction box 30, the first charging sub-junction box 350, and the first pre-charging sub-junction box 360 are connected in this order, refer to FIG. A junction box similar to the junction box 201 for a plug-in hybrid vehicle having a specification capable of charging the main battery 81 with either the AC external power source 91 or the DC external power source 101 described above can be configured. When the junction box 320, the traveling sub junction box 310, the first charging sub junction box 350, and the first precharge sub junction box 360 are connected in this order, FIG. It is possible to construct a junction box having the same function as the junction box 202 described with reference to.

  As described above, the vehicular sub-junction box set 300 according to the present embodiment changes the connection and combination without changing the design of each sub-junction box 320, 310, 30, 350, 360. Since the vehicle junction box can be configured in accordance with the availability of the external charging power source or the type of the external power source and the necessity of the limiting resistor, the vehicle sub-junction box set 200 described with reference to FIGS. More types of junction boxes can be configured. Thereby, even when the type or specification of the external charging power source is different, the design of the vehicle junction box can be shared.

  In each embodiment described above, in the traveling sub-junction boxes 10 and 310, the second terminal 18 is connected to the load-side internal circuit 14, and when the main battery 81 is charged by the DC external power source 101, the main relay 12. However, it is also possible to connect the second terminal 18 to the battery side internal circuit 13 and charge the main battery 81 from the DC external power source 101 without passing through the main relay 12. Alternatively, the first terminal 16 may be connected to the load-side internal circuit 14 and charged through the main relay 12 when the main battery 81 is charged by the AC external power supply 91.

  10,310 Traveling sub-junction box, 11a-11d, 31a-31d, 51a-51d, 311a-311d, 321a-321d, 351a-351d, 361a-361d Side, 11e, 31e, 51e, 311e, 321e, 351e, 361e Upper surface, 11f, 31f, 51f, 311f, 351f Lower surface, 12 main relay, 13 battery side internal circuit, 14 load side internal circuit, 15 power supply circuit, 16 first terminal, 17 first terminal internal circuit, 18 second terminal , 19 Second terminal internal electric circuit, 20 Battery cable connection terminal, 21 Load cable connection terminal, 22 Recess, 23, 25 hole, 24 Projection, 26 First pre-terminal, 27, 29, 61, 64, 67, 71, 74, 77, 78, 79, 361, 364, 371, 374 Internal electric wire, 28 Second pre-terminal, 30 Second charging sub junction box, 32 Second charging relay, 33 Second charging side internal circuit, 34 Second connection side internal circuit, 35 Second charging circuit, 36 Second connector, 37 3rd connector, 38 4th connector, 39 Through electrical circuit, 40 2nd charging cable connection terminal, 50, 350 1st charging sub junction box, 52 1st charging relay, 53 1st charging side internal electrical circuit, 54 1st connection Side internal circuit, 55 1st charging circuit, 56 1st charging cable connection terminal, 57 1st connector, 58 3rd preterminal, 59 4th preterminal, 62 main limiting resistor, 63 main precharge relay, 65 1st preconnector , 66 Second pre-connector, 72 First limiting resistor, 73 First pre-charge relay, 75 Third pre-connector , 76 4th pre-connector, 81 main battery, 82, 85, 97, 105 cable, 83, 86, 98, 106 terminal, 84 load, 91 AC external power supply, 92, 102 charging cable, 93, 103 charging connector, 94 AC external power supply connection terminal, 96 charger, 101 DC external power supply, 104 DC external power supply connection terminal, 200, 300 Subjunction box set for vehicle, 201, 202, 301, 302 junction box, 320 travel precharge sub junction box, 360 First precharge sub-junction box, 901, 902 power supply system, C11-C16, C31, C32, C51-C56 connectors, R1-R7 arrows.

Claims (1)

A traveling sub-junction box to which a main relay for turning on / off a power supply circuit from a battery for driving a vehicle to a load is attached;
A first charging sub-junction box to which a first charging relay for turning on / off a first charging circuit for charging the battery from a first external power source is attached;
A second charging sub-junction box to which a second charging relay for turning on and off a second charging circuit for performing rapid charging from the second external power source to the battery is attached;
The first charging sub-junction box is connected to the traveling sub-junction box, or the second charging sub-junction box and the first charging sub-junction box are sequentially connected to the traveling sub-junction box. A sub-junction box set for vehicles constituting a junction box,
The second charging sub-junction box has a through-circuit that electrically connects the traveling sub-junction box and the first charging sub-junction box;
Sub-junction box set for vehicles.

Images