Power Supply Module

Abstract

To provide a module for power supply which can shorten a length of a wire material.SOLUTION: A module for power supply includes a module substrate, a power conversion part, a first connector, and a second connector. The module substrate is arranged under the floor of a vehicle. The power conversion part is supported by the module substrate, and converts power supplied from a battery. The first connector is supported by the module substrate, and is connectable with a first wire material for supplying first power output from the power conversion part to a first load part of the vehicle. The second connector is supported by the module substrate, and is connectable with a second wire material for supplying second power output from the power conversion part to a second load part of the vehicle.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] SUMMARY OF THE INVENTION An embodiment of the present invention relates to a power supply module. [Background technology]

[0002] A vehicle power supply system is known that includes a battery and an electrical junction box. In the vehicle power supply system, power from the battery is distributed to multiple loads within the vehicle via the electrical junction box located at the front of the vehicle. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2018-065485 Summary of the Invention [Problem to be solved by the invention]

[0004] A power supply system for a vehicle includes a power converter that converts power supplied from a battery. When such a power converter is disposed at the front or rear of the vehicle, the wiring material provided in the vehicle may become long.

[0005] An embodiment of the present invention provides a power supply module that can reduce the length of wiring material. [Means for solving the problem]

[0006] A power supply module according to one embodiment of the present invention includes a module base, a power conversion unit, and a first power distribution unit and a second power distribution unit; The module base includes a first connector and a second connector, and is disposed under the floor of the vehicle. The module base includes a housing body, which has a front end portion that is the foremost area of ​​the four divided areas when the housing body is divided into four areas in the longitudinal direction of the vehicle, and a rear end portion that is the rearmost area of ​​the four divided areas. The power conversion unit Confined to a containment facility , converting the power supplied by the battery. The first power distribution unit is disposed at the front end of the housing, includes a first switching element, and distributes a portion of the power output from the power conversion unit. The second power distribution unit is disposed at the rear end of the housing, includes a second switching element, and distributes a portion of the power output from the power conversion unit. The first connector is The power distribution unit is disposed at the front end of the housing and distributed by the first power distribution unit.A first wiring material that supplies a first electric power to a first load of the vehicle can be connected to the second connector. The power distribution unit is disposed at the rear end of the housing and distributed by the second power distribution unit. A second wiring member is connectable to supply a second electric power to a second load on the vehicle. [Effects of the Invention]

[0007] According to the power supply module of one embodiment of the present invention, the length of the wiring material can be reduced. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a diagram showing the configuration of a power supply system according to a first embodiment. [Figure 2] FIG. 2 is a side view illustrating the power supply module according to the first embodiment. [Figure 3] FIG. 2 is a block diagram showing the electrical configuration of the power supply module of the first embodiment. [Figure 4] FIG. 2 is a block diagram for explaining details of the power distribution unit of the first embodiment. [Figure 5] FIG. 2 is a cross-sectional view showing an example of an arrangement inside the power supply module of the first embodiment. [Figure 6] FIG. 2 is a cross-sectional view showing an example of an arrangement inside the power supply module of the first embodiment. [Figure 7] FIG. 2 is a perspective view illustrating a power conversion unit and a connector according to the first embodiment. [Figure 8] FIG. 10 is a cross-sectional view showing an example of an arrangement inside a power supply module according to a second embodiment. [Figure 9] FIG. 10 is a side view illustrating a power supply module according to a third embodiment. [Figure 10] FIG. 10 is a side view illustrating a power supply module according to a fourth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, components having the same or similar functions will be assigned the same reference numerals. Duplicate descriptions of those components may be omitted. Furthermore, reference numerals with a distinguishing alphabetical character at the end may omit the alphabetical character at the end if they do not need to be distinguished from each other.

[0010] In this application, terms are defined as follows: "Connection" is not limited to mechanical connection, but can also include electrical connection. In other words, "connection" is not limited to direct connection between two elements to be connected, but can also include connection between two elements via another element interposed therebetween. "Supported" is not limited to support via direct contact, but can also include support via another element interposed therebetween. "High voltage" or "high voltage" means a voltage of 48 V or higher. "Low voltage" or "low voltage" means a voltage less than 48 V. In this application, front, rear, left, and right are defined based on the direction of travel of the vehicle.

[0011] (First embodiment) <1. Vehicle configuration> FIG. 1 is a diagram showing the configuration of a power supply system 1 according to a first embodiment. The power supply system 1 is mounted on a vehicle V. The vehicle V is an electric vehicle such as an EV (Electric Vehicle), an HEV (Hybrid Electric Vehicle), or a PHEV (Plug-in Hybrid Electric Vehicle). The vehicle V is, for example, a four-wheeled vehicle. However, the vehicle V may also be a three-wheeled vehicle or a vehicle with five or more wheels.

[0012] First, the load portion of the vehicle V will be described. As shown in FIG. 1, a vehicle V includes, for example, a front motor 10A, a rear motor 10B, front vehicle components 20, vehicle interior vehicle components 30, and rear vehicle components 40.

[0013] <1.1 Front motor> The front motor 10A is a driving source for driving the front wheels 2A of the vehicle V. The front motor 10A is disposed, for example, forward of the passenger compartment 3 (see FIG. 2) of the vehicle V. The operating voltage of the front motor 10A is, for example, 300V to 400V. The front motor 10A is an example of a "load section." The front motor 10A is an example of a "high-voltage load section" that operates at high voltage.

[0014] <1.2 Rear motor> The rear motor 10B is a driving source for driving the rear wheels 2B of the vehicle V. The rear motor 10B is disposed, for example, rearward of the passenger compartment 3 (see FIG. 2) of the vehicle V. The operating voltage of the rear motor 10B is, for example, 300V to 400V. The rear motor 10B is an example of a "load section." The rear motor 10B is an example of a "high-voltage load section" that operates at a high voltage. Hereinafter, when there is no need to distinguish between the front motor 10A and the rear motor 10B, they will be referred to as "motors 10."

[0015] <1.3 Front vehicle components> The front vehicle components 20 are vehicle components arranged forward of the front seat 4A (see FIG. 2) of the vehicle V. The front vehicle components 20 include, for example, a heat pump 21, left front accessories 22L, right front accessories 22R, and instrument panel accessories 23 (hereinafter referred to as "panel accessories 23").

[0016] The heat pump 21 is a device for conditioning the air inside the vehicle V. The heat pump 21 is an example of a "load unit." The heat pump 21 is an example of a "high-voltage load unit" that operates at high voltage.

[0017] The left front auxiliary equipment 22L is an on-board component located at the left front of the vehicle V. The right front auxiliary equipment 22R is an on-board component located at the right front of the vehicle V. Hereinafter, when there is no need to distinguish between the left front auxiliary equipment 22L and the right front auxiliary equipment 22R, they will be referred to as "front auxiliary equipment 22." The front auxiliary equipment 22 is an example of a "load section." The front auxiliary equipment 22 is an example of a "low-voltage load section" that operates at a low voltage. The front auxiliary equipment 22 includes, for example, a plurality of loads that operate independently of each other. The front auxiliary equipment 22 includes, for example, a headlight 22a and a turn signal 22b as the plurality of loads (see FIG. 4).

[0018] The panel auxiliary equipment 23 is one or more on-board components related to the instrument panel. The panel auxiliary equipment 23 is disposed, for example, in the center of the vehicle V in the width direction (left-right direction). The panel auxiliary equipment 23 is an example of a "load section." The panel auxiliary equipment 23 is an example of a "low-voltage load section" that operates at a low voltage. The panel auxiliary equipment 23 includes, for example, a plurality of loads that operate independently of each other. The panel auxiliary equipment 23 includes, for example, a meter 23a and a navigation device 23b as the plurality of loads (see FIG. 4).

[0019] <1.4 Vehicle interior components> The vehicle interior on-board parts 30 are on-board parts related to the vehicle interior 3. The vehicle interior on-board parts 30 are mounted in an area corresponding to the vehicle interior 3 in the longitudinal direction of the vehicle V. The vehicle interior on-board parts 30 include, for example, first to fourth door accessories 31AL, 31BL, 31AR, 31BR and first and second floor accessories 32FA, 32FB.

[0020] The first door accessories 31AL are vehicle components mounted on the left front door. The second door accessories 31BL are vehicle components mounted on the left rear door. The first door accessories 31AL and the second door accessories 31BL are located at the left end of the vehicle V. The third door accessories 31AR are vehicle components mounted on the right front door. The fourth door accessories 31BR are vehicle components mounted on the right rear door. The third door accessories 31AR and the fourth door accessories 31BR are located at the right end of the vehicle V.

[0021] Hereinafter, when the first to fourth door accessories 31AL, 31BL, 31AR, and 31BR are not distinguished from one another, they will be referred to as "door accessories 31." The door accessories 31 are an example of a "load section." The door accessories 31 are an example of a "low-voltage load section" that operates at low voltage. The door accessories 31 include, for example, a plurality of loads that operate independently of one another. The door accessories 31 include, for example, a power window 31a and a door lock mechanism 31b as the plurality of loads (see FIG. 4).

[0022] The first floor auxiliary equipment 32FA is an on-board component arranged corresponding to the front seat 4A (see FIG. 2) of the vehicle V. The second floor auxiliary equipment 32FB is an on-board component arranged corresponding to the rear seat 4B (see FIG. 2) of the vehicle V. Hereinafter, when the first and second floor auxiliary equipment 32FA, 32FB are not distinguished from each other, they will be referred to as "floor auxiliary equipment 32." The floor auxiliary equipment 32 is an example of a "load section." The floor auxiliary equipment 32 is an example of a "low-voltage load section" that operates at a low voltage. The floor auxiliary equipment 32 includes, for example, a plurality of loads that operate independently of each other. The floor auxiliary equipment 32 includes, for example, a display device 32a and an audio device 32b as the plurality of loads (see FIG. 4).

[0023] <1.5 Rear vehicle components> The rear on-board components 40 are on-board components arranged behind the rear seat 4B (see FIG. 2) of the vehicle V. The rear on-board components 40 include, for example, a charging port 41, a left rear auxiliary device 42L, and a right rear auxiliary device 42R.

[0024] Charging port 41 is an electrical connection portion to which an external charging device can be connected. Charging port 41 is, for example, a charging port that supports 100V or 200V AC power. However, charging port 41 may also be a charging port that supports DC power.

[0025] The left rear auxiliary equipment 42L is an on-board component located at the left rear of the vehicle V. The right rear auxiliary equipment 42R is an on-board component located at the right rear of the vehicle V. Hereinafter, when there is no need to distinguish between the left rear auxiliary equipment 42L and the right rear auxiliary equipment 42R, they will be referred to as "rear auxiliary equipment 42." The rear auxiliary equipment 42 is an example of a "load section." The rear auxiliary equipment 42 is an example of a "low-voltage load section" that operates at a low voltage. The rear auxiliary equipment 42 includes, for example, a plurality of loads that operate independently of each other. The rear auxiliary equipment 42 includes, for example, a tail lamp 42a and a turn signal 42b as the plurality of loads (see FIG. 4).

[0026] <2. Power supply system configuration> Next, the configuration of the power supply system 1 will be described. As shown in Fig. 1, the power supply system 1 includes a power supply module 100 and a plurality of wiring materials 200. The power supply module 100 is a modular component in which a plurality of functional units related to power supply are integrated. The wiring materials 200 are electrical connection components extending between the power supply module 100 and a load unit. The wiring material 200 is, for example, a wire harness, but may also be a cable, a bus bar, or an FPC (Flexible Printed Circuit Board).

[0027] <3. Module base> 2 is a side view for explaining the power supply module 100. The power supply module 100 has a module base 110. The module base 110 is a support member that supports various components included in the power supply module 100.

[0028] The module base 110 includes at least one of one or more housings and one or more base members. In this embodiment, an example will be described in which the module base 110 is formed by one case 111. The case 111 is an example of a "housing."

[0029] In this embodiment, the case 111 is formed in a box shape and has, for example, an upper wall 111a, a lower wall 111b, a front wall 111c, a rear wall 111d, a left wall 111e (see FIG. 1), and a right wall 111f (see FIG. 1).

[0030] The upper wall 111a is a wall portion that extends horizontally. The lower wall 111b is also a wall portion that extends horizontally, like the upper wall 111a. The lower wall 111b is located below the upper wall 111a with a storage space between them. The front wall 111c is a wall portion that extends vertically and horizontally. The front wall 111c connects the front end of the upper wall 111a to the front end of the lower wall 111b. The rear wall 111d is a wall portion that extends vertically and horizontally. The rear wall 111d connects the rear end of the upper wall 111a to the rear end of the lower wall 111b. The left wall 111e is a wall portion that extends vertically and front-to-rear. The left wall 111e connects the left end of the upper wall 111a to the left end of the lower wall 111b. The right wall 111f is a wall portion that extends vertically and front-to-rear. The right wall 111f connects the right end of the upper wall 111a and the right end of the lower wall 111b.

[0031] However, one or more of the upper wall 111a, the lower wall 111b, the front wall 111c, the rear wall 111d, the left wall 111e, and the right wall 111f may be omitted. In this application, the term "housing body" refers to a member that covers the components arranged inside the housing body from two or more directions (for example, three or more directions). A frame body that does not have the upper wall 111a and the lower wall 111b, and a U-shaped member that does not have the upper wall 111a, the lower wall 111b, and the rear wall 111d are each examples of the "housing body."

[0032] As shown in FIG. 2, the case 111 (module base 110) is disposed under the floor of the vehicle V. For example, the vehicle V has a floor member 3a that defines the floor surface of the passenger compartment 3. The case 111 (module base 110) is disposed below the floor member 3a. In this embodiment, the length L1 of the case 111 (module base 110) in the front-to-rear direction is smaller than the distance L2 between the front wheels 2A and the rear wheels 2B.

[0033] As shown in FIG. 1, the case 111 (module base 110) has a front end 110a, a rear end 110b, a left end 110c, and a right end 110d.

[0034] When the vehicle V is viewed from above, the front end 110a is located between the center C1 of the vehicle V in the longitudinal direction and the front end Ea of the vehicle V. When the case 111 (module base 110) is divided into four parts in the longitudinal direction of the vehicle V, the front end 110a is the frontmost area among the four divided parts. When the vehicle V is viewed from above, the rear end 110b is located between the center C1 of the vehicle V in the longitudinal direction and the rear end Eb of the vehicle V. When the case 111 (module base 110) is divided into four parts in the longitudinal direction of the vehicle V, the rear end 110b is the rearmost area among the four divided parts.

[0035] When the vehicle V is viewed from above, the left end portion 110c is located between the center C2 of the vehicle V in the width direction and the left end Ec of the vehicle V. When the case 111 (module base 110) is divided into four parts in the width direction of the vehicle V, the left end portion 110c is the leftmost part of the four divided parts. When the vehicle V is viewed from above, the right end portion 110d is located between the center C2 of the vehicle V in the width direction and the right end Ed of the vehicle V. When the case 111 (module base 110) is divided into four parts in the width direction of the vehicle V, the right end portion 110d is the rightmost part of the four divided parts.

[0036] The case 111 is made of, for example, metal. The case 111 is electrically connected to the ground of the vehicle V. By being electrically connected to the ground, the case 111 functions as an EMI (Electromagnetic Interference) suppression component for the components included in the power supply module 100.

[0037] <4. Components inside the power supply module> 3 is a block diagram showing the electrical configuration of the power supply module 100. The power supply module 100 includes, for example, a high-voltage battery 120, a low-voltage battery 130, an inverter assembly 140, a power distribution unit 150, an ECU (Electronic Control Unit) unit 160, and a control device 170.

[0038] The high-voltage battery 120, the low-voltage battery 130, the inverter assembly 140, the power distribution unit 150, the ECU unit 160, and the control device 170 are supported by the module base 110. In this embodiment, the high-voltage battery 120, the low-voltage battery 130, the inverter assembly 140, the power distribution unit 150, the ECU unit 160, and the control device 170 are housed in a single case 111.

[0039] <4.1 High-voltage battery> The high-voltage battery 120 is a battery capable of supplying high-voltage power of 100 V or more (e.g., 350 V). The high-voltage battery 120 is formed, for example, by electrically connecting a plurality of battery cells in series or in parallel. The high-voltage battery 120 is an example of a "first battery."

[0040] <4.2 Low-voltage battery> The low-voltage battery 130 is a battery capable of supplying low-voltage power of less than 100 V (for example, 12 V). The low-voltage battery 130 is formed, for example, by electrically connecting multiple battery cells in series or parallel. The low-voltage battery 130 is an example of a "second battery."

[0041] <4.3 Inverter assembly> The inverter assembly 140 is a functional unit that converts the power supplied from the high-voltage battery 120. The inverter assembly 140 is an example of a "power conversion unit." The inverter assembly 140 includes, for example, a DC-DC converter 141, a motor inverter 142, a heat pump inverter 143, and a charger converter 144.

[0042] However, the "power conversion unit" referred to in this application only needs to have at least one of the function of converting DC power supplied from the battery into AC power and the function of converting DC power supplied from the battery into another DC power with a different voltage (boosted or stepped-down DC power). The "power conversion unit" referred to in this application may be realized by at least one of the DC-DC converter 141, the motor inverter 142, the heat pump inverter 143, and the charger converter 144.

[0043] (DC-DC converter) The DC-DC converter 141 is a power conversion device that converts DC power of a certain voltage supplied from the high-voltage battery 120 into DC power of a lower voltage than the above voltage. For example, the DC-DC converter 141 converts the high-voltage DC power supplied from the high-voltage battery 120 into low-voltage DC power. In this embodiment, the DC-DC converter 141 converts the high-voltage DC power supplied from the high-voltage battery 120 into two or more types of low-voltage DC power (for example, 12 V DC power and 5 V DC power). The DC-DC converter 141 outputs the obtained low-voltage DC power to the power distribution unit 150. The DC-DC converter 141 is an example of a "first power conversion device."

[0044] (Motor inverter) The motor inverter 142 is a power conversion device that converts DC power supplied from the high-voltage battery 120 into AC power (e.g., three-phase AC). For example, the motor inverter 142 converts high-voltage DC power supplied from the high-voltage battery 120 into high-voltage AC power. The motor inverter 142 outputs the obtained AC power to the motor 10 via a high-voltage connector 181, which will be described later. The motor inverter 142 is an example of a "second power conversion device."

[0045] (heat pump inverter) The heat pump inverter 143 is a power conversion device that converts DC power supplied from the high-voltage battery 120 into AC power (e.g., single-phase AC). For example, the heat pump inverter 143 converts high-voltage DC power supplied from the high-voltage battery 120 into high-voltage AC power. The heat pump inverter 143 outputs the obtained AC power to the heat pump 21 via a high-voltage connector 182, which will be described later. The heat pump inverter 143 is another example of a "second power conversion device."

[0046] (charger converter) Charger converter 144 is a power conversion device that converts externally supplied AC power for charging into DC power. For example, charger converter 144 is electrically connected to charging port 41 via a high-voltage connector 183, which will be described later. Charger converter 144 converts high-voltage AC power supplied from the outside through charging port 41 and high-voltage connector 183 into high-voltage DC power. Charger converter 144 outputs the obtained DC power to high-voltage battery 120.

[0047] 4.4 Power Distribution Unit The power distribution unit 150 is a distribution device that distributes and supplies power supplied to the power distribution unit 150 to a plurality of loads (and / or a plurality of loads) of the vehicle V. In this embodiment, the power distribution unit 150 distributes and supplies low-voltage DC power supplied from the DC-DC converter 141 to a plurality of loads (for example, front accessories 22L, 22R, panel accessories 23, door accessories 31AL, 31BL, 31AR, 31BR, floor accessories 32FA, 32FB, rear accessories 42L, 42R, ECU unit 160, and control device 170).

[0048] In this embodiment, the power distribution unit 150 is connected to the low-voltage battery 130. For example, when an abnormality occurs in the high-voltage battery 120 or the DC-DC converter 141, the power distribution unit 150 distributes and supplies the low-voltage DC power supplied from the low-voltage battery 130 to at least some of the plurality of loads. Furthermore, for example, when starting the vehicle V before starting to drive, the power distribution unit 150 distributes and supplies the low-voltage DC power supplied from the low-voltage battery 130 to at least some of the plurality of loads.

[0049] In this embodiment, the power distribution unit 150 supplies a portion of the distributed power to the front auxiliary devices 22 through a low-voltage connector 191, which will be described later. The power distribution unit 150 supplies a portion of the distributed power to the panel auxiliary devices 23 through a low-voltage connector 192, which will be described later. The power distribution unit 150 supplies a portion of the distributed power to the door auxiliary devices 31 through a low-voltage connector 193, which will be described later (or a low-voltage connector 191, see FIG. 1 ). The power distribution unit 150 supplies a portion of the distributed power to the floor auxiliary devices 32 through a low-voltage connector 194, which will be described later. The power distribution unit 150 supplies a portion of the distributed power to the rear auxiliary devices 42 through a low-voltage connector 195, which will be described later. The power distribution unit 150 supplies a portion of the distributed power to the ECU unit 160 and the control device 170 inside the power supply module 100.

[0050] Next, details of the power distribution unit 150 will be described. 4 is a block diagram for explaining details of power distribution unit 150. Power distribution unit 150 has power distribution sections 151-155.

[0051] The power distribution unit 151 is an electric circuit unit that distributes the power supplied to the power distribution unit 150 to multiple loads included in the front auxiliary equipment 22. The power distribution unit 152 is an electric circuit unit that distributes the power supplied to the power distribution unit 150 to multiple loads included in the panel auxiliary equipment 23. The power distribution unit 153 is an electric circuit unit that distributes the power supplied to the power distribution unit 150 to multiple loads included in the door auxiliary equipment 31. The power distribution unit 154 is an electric circuit unit that distributes the power supplied to the power distribution unit 150 to multiple loads included in the floor auxiliary equipment 32. The power distribution unit 155 is an electric circuit unit that distributes the power supplied to the power distribution unit 150 to multiple loads included in the rear auxiliary equipment 42.

[0052] Each of the power distribution units 151 to 155 has a plurality of power lines PL corresponding to a plurality of loads. A switching element SW (e.g., a relay or a transistor) and a cutoff component F (e.g., a fuse) are provided along each power line PL. The switching element SW switches the state of the power line PL on which the switching element SW is provided between a conductive state and a non-conductive state based on a signal from a control device 170 (described later). The cutoff component F cuts off the power line PL on which the cutoff component F is provided when, for example, the detection result of a voltage sensor, a current sensor, or a temperature sensor (not shown) satisfies a preset condition.

[0053] <4.5 ECU unit> Returning to FIG. 3, the remaining configuration of the power supply module 100 will be described. The ECU unit 160 is a control device that controls the electrical components mounted on the vehicle V. The ECU unit 160 includes, for example, a body ECU 161 and a brake ECU 162. The body ECU 161 is a control device that controls the above-mentioned vehicle components (for example, the front accessories 22, the panel accessories 23, the door accessories 31, the floor accessories 32, and the rear accessories 42). The brake ECU 162 is a control device that controls the brakes of the vehicle V. The ECU unit 160 is an example of a "load section."

[0054] 4.6 Control Device The control device 170 is a control device that controls the power supply module 100. The control device 170 includes, for example, a battery management system. The battery management system controls, for example, the inverter assembly 140 and the power distribution unit 150, thereby controlling the power supply from the power supply module 100 to a plurality of loads. The control device 170 is an example of a "load."

[0055] <5. Connector> Next, returning to FIG. 1, the connector will be described. 1, the power supply module 100 has a plurality of high-voltage connectors 181 to 183 and a plurality of low-voltage connectors 191 to 195. The high-voltage connectors 181 to 183 are connectors compatible with high voltages, and the low-voltage connectors 191 to 195 are connectors compatible with low voltages.

[0056] 5.1 Connector mounting structure 1, a plurality of high-voltage connectors 181-183 and a plurality of low-voltage connectors 191-195 are supported by the case 111 (module base 110). In this application, "the connector is supported by the case," "the connector is provided on the case," and "the connector is disposed at the end of the case" are not limited to cases where the connector is fixed to the outer surface of the case 111, but may also apply to cases where the connector is housed inside the case 111 and exposed to the outside of the case 111 through an opening in the case 111.

[0057] 5.2 Connector layout (Motor connector) As shown in Fig. 1, the multiple high-voltage connectors 181 include a high-voltage connector 181A and a high-voltage connector 181B. The high-voltage connector 181A is a connector that corresponds to the front motor 10A. The high-voltage connector 181A is arranged at the front end portion 110a of the case 111. A wiring material 200A is connected to the high-voltage connector 181A. The wiring material 200A is a wiring material that supplies high-voltage AC power to the front motor 10A.

[0058] On the other hand, the high-voltage connector 181B is a connector that corresponds to the rear motor 10B. The high-voltage connector 181B is arranged at the rear end portion 110b of the case 111. A wiring material 200B is connected to the high-voltage connector 181B. The wiring material 200B is a wiring material that supplies high-voltage AC power from the high-voltage connector 181B to the rear motor 10B.

[0059] (Connector for heat pump) The high-voltage connector 182 is a connector that corresponds to the heat pump 21. The high-voltage connector 182 is arranged at the front end 110a of the case 111. A wiring material 200C is connected to the high-voltage connector 182. The wiring material 200C is a wiring material that supplies high-voltage AC power to the heat pump 21.

[0060] (Charging port connector) High-voltage connector 183 is a connector that corresponds to charging port 41. High-voltage connector 183 is arranged at rear end 110b of case 111. Cabling material 200D is connected to high-voltage connector 183. Cabling material 200D is a cabling material that supplies high-voltage AC power from charging port 41 to high-voltage connector 183.

[0061] (Front auxiliary equipment connector) The plurality of low-voltage connectors 191 include a low-voltage connector 191L ​​and a low-voltage connector 191R. The low-voltage connector 191L ​​is a connector corresponding to the left front auxiliary equipment 22L. The low-voltage connector 191L ​​is disposed at the front end portion 110a of the case 111 and at the left front corner portion of the case 111, which is the left end portion 110c. A wiring material 200E is connected to the low-voltage connector 191L. The wiring material 200E is a wiring material that supplies low-voltage DC power to the left front auxiliary equipment 22L. In this embodiment, the wiring material 200E is a wiring material that supplies power distributed by the power distribution unit 151 electrically in parallel to a plurality of loads included in the left front auxiliary equipment 22L. In this embodiment, the connector 191L ​​is also connected to a wiring material 200G that supplies low-voltage DC power to the door auxiliary equipment 31AL. The wiring material 200G is a wiring material that supplies the power distributed by the power distribution unit 151 electrically in parallel to a plurality of loads included in the door auxiliary devices 31AL.

[0062] The low-voltage connector 191R is a connector corresponding to the right front auxiliary equipment 22R. The low-voltage connector 191R is disposed at the front end 110a of the case 111 and at the right front corner of the case 111, which is the right end 110d. A wiring material 200F is connected to the low-voltage connector 191R. The wiring material 200F supplies low-voltage DC power to the right front auxiliary equipment 22R. In this embodiment, the wiring material 200F supplies the power distributed by the power distribution unit 151 electrically in parallel to multiple loads included in the right front auxiliary equipment 22R. In this embodiment, the connector 191R is also connected to a wiring material 200H that supplies low-voltage DC power to the door auxiliary equipment 31AR. The wiring material 200H supplies the power distributed by the power distribution unit 151 electrically in parallel to multiple loads included in the door auxiliary equipment 31AR.

[0063] (Connector for panel accessories) The low-voltage connector 192 is a connector that corresponds to the panel auxiliary equipment 23. The low-voltage connector 192 is arranged at the front end 110a of the case 111. A wiring material 200G is connected to the low-voltage connector 192. The wiring material 200G is a wiring material that supplies low-voltage DC power to the panel auxiliary equipment 23. In this embodiment, the wiring material 200G is a wiring material that supplies the power distributed by the power distribution unit 152 to multiple loads included in the panel auxiliary equipment 23 electrically in parallel.

[0064] (Door accessory connector) The low-voltage connector 193L is a connector corresponding to the door accessories 31BL. The low-voltage connector 193L is arranged at the left end 110c of the case 111. A wiring material 200I is connected to the low-voltage connector 193L. The wiring material 200I is a wiring material that supplies low-voltage DC power to the door accessories 31BL. In this embodiment, the wiring material 200I is a wiring material that supplies the power distributed by the power distribution unit 153 to multiple loads included in the door accessories 31 electrically in parallel.

[0065] The low-voltage connector 193R is a connector that corresponds to the door accessories 31BR. The low-voltage connector 193R is arranged at the right end 110d of the case 111. A wiring material 200J is connected to the low-voltage connector 193R. The wiring material 200J is a wiring material that supplies low-voltage DC power to the door accessories 31BR. In this embodiment, the wiring material 200J is a wiring material that supplies the power distributed by the power distribution unit 153 electrically in parallel to multiple loads included in the door accessories 31.

[0066] (Connector for floor accessories) The low-voltage connector 194 is a connector that corresponds to the floor auxiliary equipment 32. The low-voltage connector 194 is disposed, for example, in the center of the case 111 in the left-right direction. A wiring material 200K is connected to the low-voltage connector 194. The wiring material 200K is a wiring material that supplies low-voltage DC power to the floor auxiliary equipment 32. In this embodiment, the wiring material 200K is a wiring material that supplies the power distributed by the power distribution unit 154 electrically in parallel to multiple loads included in the floor auxiliary equipment 32.

[0067] (Connector for rear accessories) The plurality of low-voltage connectors 195 include a low-voltage connector 195L and a low-voltage connector 195R. The low-voltage connector 195L is a connector corresponding to the left rear auxiliary equipment 42L. The low-voltage connector 195L is disposed at the rear end 110b of the case 111 and at the left rear corner of the case 111, which is the left end 110c. A wiring material 200M is connected to the low-voltage connector 195L. The wiring material 200M is a wiring material that supplies low-voltage DC power to the left rear auxiliary equipment 42L. In this embodiment, the wiring material 200M is a wiring material that supplies the power distributed by the power distribution unit 155 electrically in parallel to the plurality of loads included in the left rear auxiliary equipment 42L.

[0068] The low-voltage connector 195R is a connector corresponding to the right rear auxiliary equipment 42R. The low-voltage connector 195R is disposed at the rear end 110b of the case 111 and at the right rear corner of the case 111, which is the right end 110d. A wiring material 200N is connected to the low-voltage connector 195R. The wiring material 200N is a wiring material that supplies low-voltage DC power to the right rear auxiliary equipment 42R. In this embodiment, the wiring material 200N is a wiring material that supplies the power distributed by the power distribution unit 155 electrically in parallel to multiple loads included in the right rear auxiliary equipment 42R.

[0069] The various wiring materials 200 described above may include, in addition to the power lines, signal lines for transmitting and receiving signals between the ECU unit 160 and each load section.

[0070] <6. Example of layout inside the power supply module> Next, an example of the layout inside the power supply module 100 will be described. 5 and 6 are diagrams showing an example of an arrangement within the power supply module 100. As shown in Fig. 5, the high-voltage battery 120 includes a first battery unit 121 and a second battery unit 122. The first battery unit 121 and the second battery unit 122 are arranged side by side in the width direction of the vehicle V. A gap S is provided between the first battery unit 121 and the second battery unit 122.

[0071] 5, the low-voltage battery 130, the inverter assembly 140, the ECU unit 160, and the control device 170 are disposed in a gap S between the first battery unit 121 and the second battery unit 122. For example, the inverter assembly 140 is disposed in the center of the power supply module 100 in the longitudinal direction of the vehicle V. When viewed from above, the low-voltage battery 130 is disposed between the inverter assembly 140 and the rear wall 111d of the case 111. When viewed from above, the ECU unit 160 and the control device 170 are disposed between the inverter assembly 140 and the front wall 111c of the case 111.

[0072] In the example shown in FIG. 5, the high-voltage connector 181A is fixed to the front wall 111c of the case 111. An electrical connection member 201 is provided inside the case 111 between the high-voltage connector 181A and the inverter assembly 140. The electrical connection member 201 has, for example, a plurality of (e.g., three) bus bars 201a and a protective member 201b. The bus bars 201a are metal plate members. The plurality of bus bars 201a are arranged side by side in the width direction of the vehicle V. The plurality of bus bars 201a correspond to, for example, the U-phase, V-phase, and W-phase of a three-phase alternating current. The protective member 201b is an insulating member that covers the plurality of bus bars 201a. The protective member 202b electrically insulates the plurality of bus bars 201a from one another. The electrical connection member 201 extends, for example, below the ECU unit 160 and the control device 170.

[0073] On the other hand, the high-voltage connector 181B is fixed to a rear wall 111d of the case 111. An electrical connection member 202 is provided inside the case 111 between the high-voltage connector 181B and the inverter assembly 140. The electrical connection member 202 has, for example, a plurality of bus bars 202a and a protective member 202b. The bus bars 202a are metal plate members. The plurality of bus bars 202a are arranged side by side in the width direction of the vehicle V. The plurality of bus bars 202a correspond to, for example, the U phase, V phase, and W phase of a three-phase alternating current. The protective member 202b is an insulating member that covers the plurality of bus bars 202a. The protective member 202b electrically insulates the plurality of bus bars 202a from one another. The electrical connection member 202 extends, for example, to pass below the low-voltage battery 130.

[0074] As shown in FIG. 6, the power supply module 100 includes an electrical connection member 203. The electrical connection member 203 is connected to the inverter assembly 140. The electrical connection member 203 has, for example, a plurality of (e.g., three) bus bars 203a and a protective member 203b. The bus bars 203a are metal plate members. The plurality of bus bars 203a are arranged side by side in the horizontal direction. The plurality of bus bars 203a extend parallel to one another. The plurality of bus bars 203a correspond, for example, to 12V DC power and 5V DC power output from the DC-DC converter 141 and single-phase AC power output from the heat pump inverter 143, respectively. The protective member 203b is an insulating member that covers the plurality of bus bars 203a. The protective member 203b provides electrical insulation between the plurality of bus bars 203a.

[0075] For example, the electrical connection member 203 extends inside the case 111 so as to follow along a part of the left wall 111e, the rear wall 111d, the right wall 111f, the front wall 111c, and another part of the left wall 111e of the case 111 in that order. For example, the electrical connection member 203 extends so as to pass below the power distribution sections 151 to 155 of the power distribution unit 150 in that order.

[0076] In this embodiment, the power distribution sections 151 to 155 of the power distribution unit 150 are dispersedly arranged inside the case 111. For example, the power distribution sections 151 to 155 of the power distribution unit 150 are attached to the case 111 (module base 110) at a distance from each other.

[0077] In this embodiment, the power distribution unit 150 has a power distribution section 151L and a power distribution section 151R as the power distribution section 151. The power distribution section 151L is arranged at the left front corner of the case 111 so as to be located below the low-voltage connector 191L. The power distribution section 151L is connected to the electrical connection member 203 at the left front corner of the case 111. The power distribution section 151R is arranged at the right front corner of the case 111 so as to be located below the low-voltage connector 191R. The power distribution section 151R is connected to the electrical connection member 203 at the right front corner of the case 111.

[0078] The power distribution unit 152 is disposed at the front end 110a of the case 111 so as to be located below the low-voltage connector 192. The power distribution unit 152 is connected to an electrical connection member 203 at the front end 110a of the case 111.

[0079] The power distribution unit 150 has a power distribution section 153L and a power distribution section 153R as the power distribution section 153. The power distribution section 153L is arranged at the left end 110e of the case 111 so as to be located below the low-voltage connector 193L. The power distribution section 153L is connected to the electrical connection member 203 at the left end 110e of the case 111. The power distribution section 153R is arranged at the right end 110f of the case 111 so as to be located below the low-voltage connector 193R. The power distribution section 155L is connected to the electrical connection member 203 at the right end 110f of the case 111.

[0080] The power distribution unit 154 is disposed in the center of the case 111 in the left-right direction so as to be located below the low-voltage connector 194. The power distribution unit 154 is connected to the electrical connection member 203 in the center of the case 111 in the left-right direction.

[0081] The power distribution unit 150 has a power distribution section 155 that includes a power distribution section 155L and a power distribution section 155R. The power distribution section 155L is disposed at the left rear corner of the case 111 so as to be located below the low-voltage connector 195L. The power distribution section 155L is connected to an electrical connection member 203 at the left rear corner of the case 111. The power distribution section 155R is disposed at the right rear corner of the case 111 so as to be located below the low-voltage connector 195R. The power distribution section 155R is connected to the electrical connection member 203 at the right rear corner of the case 111.

[0082] In this embodiment, the power supply module 100 also has a power distribution section 156 and a connection part 157. Like the power distribution sections 151 to 155, each of the power distribution section 156 and the connection part 157 includes a power line PL, a switching element SW, and an interrupter part F.

[0083] The power distribution unit 156 is a connection component that connects the high-voltage connector 182 and the electrical connection member 203. The power distribution unit 156 is disposed at the front end 110a of the case 111 so as to be located below the high-voltage connector 182. The power distribution unit 156 is connected to the electrical connection member 203 at the front end 110a of the case 111. On the other hand, the connection component 157 is a component that connects the high-voltage connector 183 and the electrical connection member 203. The connection component 157 is disposed at the rear end 110b of the case 111 so as to be located below the high-voltage connector 183. The connection component 157 is connected to the electrical connection member 203 at the rear end 110b of the case 111.

[0084] 7 is a perspective view illustrating the power distribution unit 151 and the connector 191. In this embodiment, the power distribution unit 151 and the low-voltage connector 191 are provided as a single unit. The low-voltage connector 191 is supported by the case 111, for example, by the power distribution unit 151 being fixed to the case 111.

[0085] Power distribution unit 151 has bus bar B connected to electrical connection member 203. When viewed from above, bus bar B overlaps with destination bus bar 203a included in electrical connection member 203. Electrical connection member 203 has an opening OP at a position corresponding to bus bar B, through which destination bus bar 203a is exposed. Bus bar B is connected to destination bus bar 203a via a fastening member BT such as a bolt. The configuration of power distribution unit 151 described above is also the same for power distribution units 152 to 156 and connection part 157.

[0086] <7. Advantages>

[0087] As a comparative example, consider a power supply system including a battery placed under the floor and a power conversion unit that converts the power supplied from the battery. In this comparative example, the power conversion unit is placed in the front of the vehicle. In the configuration of this comparative example, in addition to wiring material connecting the battery placed under the floor and the power conversion unit placed in the front of the vehicle, long wiring material is required to connect each part of the vehicle, including the rear part of the vehicle, to the front part of the vehicle.

[0088] On the other hand, in this embodiment, the power supply module 100 includes a module base 110 arranged under the floor of the vehicle V, a power conversion unit supported by the module base 110, a first connector supported by the module base 110, and a second connector supported by the module base 110. A wiring material 200 that supplies a first power output from the power conversion unit to a first load unit can be connected to the first connector. A wiring material 200 that supplies a second power output from the power conversion unit to a second load unit can be connected to the second connector.

[0089] According to this configuration, the length of the first wiring material can be shortened to a length connecting the first load section and the first connector arranged under the floor of the vehicle. Furthermore, the length of the second wiring material can be shortened to a length connecting the second load section and the second connector arranged under the floor of the vehicle. Therefore, the length of the wiring material can be shortened. Furthermore, according to the above configuration, it is possible to avoid large variations in the length of the first wiring material and the length of the second wiring material. Reducing the variation in the lengths of multiple wiring materials can improve the ease of assembling the wiring materials to the vehicle V. Furthermore, eliminating or reducing wiring materials that cross significantly under the floor can reduce the space required for wiring materials under the floor. Reducing the space required for wiring materials can increase the space within the vehicle V.

[0090] From another perspective, by having a module base 110 placed under the floor of the vehicle V, and a power conversion unit, a first connector, and a second connector each supported by the module base 110, it is possible to provide a general-purpose power supply sharing module 100 that can be easily adapted to multiple vehicle types.

[0091] 6, the power distribution units 151 to 155 are dispersedly arranged inside the case 111. With this configuration, the power distribution units 151 to 155, which are heat-generating components, are dispersedly arranged, thereby preventing heat from concentrating in a certain area. As a result, wiring materials that have been made thick as a countermeasure against heat can be made thinner.

[0092] (Second embodiment) Next, a second embodiment will be described. The second embodiment differs from the first embodiment in that at least a portion of the high-voltage battery 120 is detachably attached to the power supply module 100. Note that the configuration other than that described below is the same as that of the first embodiment.

[0093] 8 is a diagram showing an example of the configuration of a power supply module 100 according to the second embodiment. In this embodiment, a case 111 houses a low-voltage battery 130, an inverter assembly 140, a power distribution unit 150, an ECU unit 160, and a control device 170.

[0094] Meanwhile, each of the first battery unit 121 and the second battery unit 122 is housed in a case 112. The case 112 housing the first battery unit 121 or the second battery unit 122 is detachably attached to the power supply module 100. When the remaining capacity of the first battery unit 121 or the second battery unit 122 becomes low, the first battery unit 121 or the second battery unit 122 is removed from the power supply module 100 together with the case 112. Then, the charged first battery unit 121 or the second battery unit is attached to the power supply module 100 together with the case 112. Even with this configuration, the length of the wiring material can be shortened.

[0095] (Third embodiment) Next, a third embodiment will be described. The third embodiment differs from the first embodiment in that the module base 110 is formed by a plurality of cases 301, 302. Note that the configuration other than that described below is the same as that of the first embodiment.

[0096] Fig. 9 is a side view illustrating a power supply module 100 according to a third embodiment. As shown in Fig. 9, in this embodiment, a module base 110 is formed by a plurality of cases 301, 302. The plurality of cases 301, 302 are arranged, for example, horizontally side by side and placed under the floor of a vehicle V.

[0097] In this embodiment, the high-voltage battery 120, the low-voltage battery 130, the DC-DC converter 141, the motor inverter 142, the heat pump inverter 143, the charger converter 144, the power distribution unit 150, the ECU unit 160, and the control device 170 are housed separately in the multiple cases 301, 302. Even with this configuration, the length of the wiring material can be shortened.

[0098] (Fourth embodiment) Next, a fourth embodiment will be described. The fourth embodiment differs from the first embodiment in that the module base 110 is formed by base members 401 and 402. Note that the configuration other than that described below is the same as that of the first embodiment.

[0099] FIG. 10 is a side view illustrating a power supply module 100 according to a fourth embodiment. As shown in FIG. 10, in this embodiment, a module base 110 is formed by one or more (for example, a plurality of) base members 401, 402. Each of the base members 401, 402 is a plate-shaped member. Each of the base members 401, 402 may be a plate material made of metal or synthetic resin, or may be a board on which an electric circuit is formed. The base members 401, 402 are arranged, for example, horizontally side by side under the floor of the vehicle V.

[0100] The high-voltage battery 120, the low-voltage battery 130, the DC-DC converter 141, the motor inverter 142, the heat pump inverter 143, the charger converter 144, the power distribution unit 150, the ECU unit 160, and the control device 170 are mounted on one or more (e.g., a plurality of) base members 401, 402. Even with this configuration, the length of the wiring material can be shortened.

[0101] Several embodiments have been described above. However, the embodiments are not limited to the above examples. For example, several of the above-described embodiments may be realized in combination with each other.

[0102] <Additional Notes> Below are some power supply modules:

[0103] [1] a module substrate (e.g., module substrate 110) disposed under the floor of a vehicle; a power conversion unit (for example, an inverter assembly 140, a DC-DC converter 141, or a motor inverter 142) supported by the module base and converting power supplied from a battery (for example, a high-voltage battery 120); a first connector (e.g., any one of high-voltage connectors 181A, 181B, 182, 183 and low-voltage connectors 191L, 191R, 192, 193L, 193R, 194, 195L, 195R) supported by the module base and to which a first wiring material (e.g., wiring material 200) can be connected, the first wiring material supplying a first electric power output from the electric power conversion unit to a first load unit of the vehicle (e.g., any one of front motor 10A, rear motor 10B, heat pump 21, left front auxiliary equipment 22L, right front auxiliary equipment 22R, panel auxiliary equipment 23, first to fourth door auxiliary equipment 31AL, 31BL, 31AR, 31BR, first and second floor auxiliary equipment 32FA, 32FB, left rear auxiliary equipment 42L, and right rear auxiliary equipment 42R); a second connector (e.g., any one of high-voltage connectors 181A, 181B, 182, 183 and low-voltage connectors 191L, 191R, 192, 193L, 193R, 194, 195L, 195R) supported by the module base and to which a second wiring material (e.g., wiring material 200) can be connected, the second wiring material supplying the second electric power output from the electric power conversion unit to a second load unit of the vehicle (e.g., any one of front motor 10A, rear motor 10B, heat pump 21, left front auxiliary equipment 22L, right front auxiliary equipment 22R, panel auxiliary equipment 23, first to fourth door auxiliary equipment 31AL, 31BL, 31AR, 31BR, first and second floor auxiliary equipment 32FA, 32FB, left rear auxiliary equipment 42L, and right rear auxiliary equipment 42R); A power supply module comprising: The first power and the second power may have the same voltage or different voltages, and both the first power and the second power may be DC power or both may be AC ​​power.

[0104] According to the configuration [1] above, the length of the first wiring material can be shortened to a length that connects the first load section and the first connector arranged under the floor of the vehicle. Also, the length of the second wiring material can be shortened to a length that connects the second load section and the second connector arranged under the floor of the vehicle. Therefore, the length of the wiring material can be shortened.

[0105] [2]. The power supply module according to [1], The module base includes a housing (e.g., case 111) placed under the floor of the vehicle, the battery and the power conversion unit are housed in the housing, and the first connector and the second connector are supported by the housing.

[0106] According to the configuration [2] above, the battery and the power conversion unit are housed in a single housing, so the battery and the power conversion unit can be placed closer together under the floor of the vehicle than when they are housed in separate housings. The proximity of the battery and the power conversion unit allows the configuration of the electrical connection members between the battery and the power conversion unit to be simplified. The simplification of the configuration of the electrical connection members facilitates the miniaturization of the power supply module.

[0107] [3]. The power supply module according to [1] or [2], The power conversion unit has a first power conversion device (e.g., DC-DC converter 141) that converts the power supplied from the battery into the first power, which is DC power, and a second power conversion device (e.g., motor inverter 142 or heat pump inverter 143) that converts the power supplied from the battery into the second power, which is AC power, and the first connector is a connector that corresponds to the DC power, and the second connector is a connector that corresponds to the AC power.

[0108] According to the configuration [3] above, it is possible to shorten the length of the wiring material both for the wiring material connected to the destination of DC power supply and for the wiring material connected to the destination of AC power supply.

[0109] [4]. The power supply module according to [1] or [2], When the vehicle is viewed from above, the module base has a front end portion (e.g., front end portion 110a) that is located between the longitudinal center of the vehicle and the front end of the vehicle, and a rear end portion (e.g., rear end portion 110b) that is located between the longitudinal center of the vehicle and the rear end of the vehicle, and the first connector is located at the front end portion and the second connector is located at the rear end portion.

[0110] According to the configuration [4] above, the first connector and the second connector are arranged separately at both ends of the module base in the front-to-rear direction, thereby making it possible to further shorten the length of the first wiring material and the second wiring material.

[0111] [5]. The power supply module according to any one of [1] to [4], When the vehicle is viewed from above, the module base has a left end (e.g., left end 110c) that is located between the center of the vehicle's width direction and the left edge of the vehicle, and a right end (e.g., right end 110d) that is located between the center of the vehicle's width direction and the right edge of the vehicle, and the first connector is located at the left end and the second connector is located at the right end.

[0112] According to the configuration [5] above, the first connector and the second connector are arranged separately at both left and right ends of the module base, thereby further shortening the length of the first wiring material and the second wiring material.

[0113] [6]. The power supply module according to any one of [1] to [5], The battery further includes a first battery (e.g., high-voltage battery 120) that is the battery, and a second battery (e.g., low-voltage battery 130) that has a lower supply voltage than the first battery, and the first battery and the second battery are supported on the module base.

[0114] According to the configuration [6] above, for example, the length of the wiring material for the second battery can be reduced compared to when the second battery is disposed in either the front or rear of the vehicle.

[0115] [7]. The power supply module according to any one of [1] to [6], The module further includes a power distribution section (for example, any one of power distribution sections 151 to 155) supported on the module base and distributing the power output from the power conversion section, the first load section includes a plurality of loads, and the first connector is connectable to a first wiring material that supplies the power distributed by the power distribution section to the plurality of loads.

[0116] According to the configuration [7] above, the length of the first wiring material that supplies power to a plurality of loads can be reduced.

[0117] [8] a module substrate (e.g., module substrate 110) disposed under the floor of a vehicle; a power conversion unit (for example, a DC-DC converter 141) supported by the module base and converting power supplied from a battery; a power distribution unit (for example, any one of power distribution units 151 to 155) supported by the module base and distributing the power output from the power conversion unit; a connector (for example, any one of low-voltage connectors 191L, 191R, 192, 193L, 193R, 194, 195L, and 195R) that is supported on the module base and that can be connected to a wiring material that supplies the power distributed by the power distribution unit to a plurality of loads of the vehicle; A power supply module comprising:

[0118] According to the configuration [8] above, the length of the wiring material that supplies power to multiple loads can be shortened to the length required to connect the multiple loads to a connector placed under the floor of the vehicle. [Explanation of symbols]

[0119] 1. Power supply system 10A...Front motor 10B...Rear motor 21...Heat pump 22, 22R, 22L...Front accessories 23...Panel accessories 31, 31AL, 31BL, 31AR, 31BR...Door accessories 32, 32FA, 32FB...Floor accessories 41…Charging port 42, 42L, 42R...Rear accessories 100...Power supply module 110...Module base 111…Case 120...High voltage battery 130...Low voltage battery 140...Inverter assembly 141...DC-DC converter 142...Motor inverter 143...Heat pump inverter 144...Charger converter 150...Power distribution unit 151,152,153,154,155...Power distribution section 181, 182, 183...High-voltage connectors 191, 192, 193, 194, 195...Low voltage connectors

Claims

1. a modular base to be placed under a floor of a vehicle, the modular base including a housing body, the housing body having a front end portion which is the frontmost area of ​​the four divided areas when the housing body is divided into four areas in the longitudinal direction of the vehicle, and a rear end portion which is the rearmost area of ​​the four divided areas; a power conversion unit that is housed in the housing and converts power supplied from a battery; a first power distribution unit disposed at the front end of the housing, including a first switching element, and distributing a portion of the power output from the power conversion unit; a second power distribution unit disposed at the rear end of the housing, including a second switching element, and distributing a portion of the power output from the power conversion unit; a first connector disposed at the front end of the housing and connectable to a first wiring material that supplies the first power distributed by the first power distribution unit to a first load unit of the vehicle; a second connector disposed at the rear end of the housing and connectable to a second wiring material that supplies the second power distributed by the second power distribution unit to a second load unit of the vehicle; A power supply module comprising:

2. A third power distribution unit that is arranged between the first power distribution unit and the second power distribution unit in the longitudinal direction of the vehicle, includes a third switching element, and distributes a portion of the power output from the power conversion unit; a third connector that is arranged between the first connector and the second connector in the longitudinal direction of the vehicle and that can be connected to a third wiring material that supplies the third power distributed by the third power distribution unit to a third load unit of the vehicle; Furthermore, 2. The power supply module according to claim 1.

3. The vehicle further comprises an electrical connection member housed in the housing, at least a portion of which extends in the fore-and-aft direction of the vehicle; the first power distribution unit is connected to the electrical connection member and distributes a portion of the power output from the power conversion unit to the electrical connection member as the first power; the second power distribution unit is connected to the electrical connection member and distributes a portion of the power output from the power conversion unit to the electrical connection member as the second power.

3. The power supply module according to claim 1 or 2.

4. the battery and the power conversion unit are housed in the housing; The first connector and the second connector are supported by the housing.

3. The power supply module according to claim 1 or 2.

5. the power conversion unit includes a first power conversion device that converts the power supplied from the battery into the first power which is DC power, and a second power conversion device that converts the power supplied from the battery into the second power which is AC power, the first connector is a connector compatible with the DC power, The second connector is a connector compatible with the AC power.

3. The power supply module according to claim 1 or 2.

6. When the vehicle is viewed from above, the container has the front end portion disposed between the center of the vehicle in the longitudinal direction and the front end of the vehicle, and the rear end portion disposed between the center of the vehicle in the longitudinal direction and the rear end of the vehicle, the first connector is disposed at the front end; The second connector is disposed at the rear end.

3. The power supply module according to claim 1 or 2.

7. When the vehicle is viewed from above, the container has a left end portion that is disposed between the center of the vehicle in the width direction and the left end of the vehicle, and a right end portion that is disposed between the center of the vehicle in the width direction and the right end of the vehicle, the first connector is disposed at the left end, The second connector is disposed at the right end.

3. The power supply module according to claim 1 or 2.

8. the first load section includes a plurality of loads, the first connector is connectable to the first wiring material that supplies the power distributed by the first power distribution unit to the plurality of loads; 3. The power supply module according to claim 1 or 2.

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