JP5292524B1 - Electric vehicle power control unit - Google Patents

Abstract

  The electric vehicle power control unit includes an electric device and a housing, and is arranged in a motor room. The electric vehicle power control unit includes an attachment member, a cover member, and the electric vehicle power control unit. The attachment member and the cover member form a first space in which the first electric device is accommodated, a second space in which the second electric device is accommodated, and a third space inside the attachment member and the cover member. The height dimension of the third space is lower than the height dimension of the first space and the height dimension of the second space, so that the upper wall portion, the first wall portion, A second space surrounded by two wall portions and opened to the outside. The second wall portion is provided with a quick charging port and a connector, and the connector is provided on the second wall portion. And said 2 electrical device, said connector, a battery and a electrical on or off to contactor connections between, wherein the second space, wherein the contactor is housed.

Description

The present invention relates to a power control unit for an electric vehicle.
This application claims priority on November 14, 2011 based on Japanese Patent Application No. 2011-248172 for which it applied to Japan, and uses the content here.

  Patent Document 1 discloses an electric vehicle in which a converter housing is arranged at the lower rear of an inverter housing, and a connector for quick charging projects forward from the converter housing. Yes.

Japanese Unexamined Patent Publication No. 2011-20622

  Some electric vehicles of this type have a connector for quick charging as described above and a connector for power supply. Such connectors are preferably protected from collisions and the like. Here, in the vehicle according to Patent Document 1, the quick charging connector is surrounded by the inverter casing and the converter casing from behind and from above, so that damage at the time of collision can be prevented.

  However, when adopting the structure as in Patent Document 1, it is assumed that a plurality of highly rigid housings exist in the motor room. Therefore, for example, in a configuration in which a plurality of electric devices such as inverters and converters are provided in one package (provided in a single housing) for the purpose of improving space efficiency and reducing the number of wires, the structure of Patent Document 1 is difficult to apply well. There is a problem.

  Accordingly, the present invention can effectively protect a connector while housing a plurality of electrical devices in a single casing and providing a quick charging connector or a power feeding connector in the casing. An object is to provide a power control unit for an electric vehicle.

As a means for solving the above problems, an aspect of the present invention has the following configuration.
(1) An electric vehicle power control unit according to an aspect of the present invention includes an electric device and a housing that houses the electric device, and the electric vehicle power disposed in a motor room of the electric vehicle. The control unit, wherein the housing includes an attachment member having an attachment surface to which the electric device is attached, and a cover member that is coupled to the attachment member and covers the electric device, and the attachment member and the The cover member includes a first space in which the first electrical device is accommodated, a second space in which the second electrical device is accommodated, and a third space adjacent to the first space and the second space. The first space, the second space, and the third space are formed adjacent to each other. The height dimension of the third space from the mounting surface is set lower than the height dimension of the first space and the height dimension of the second space, and the height dimension of the third space is Since the height dimension of the first space and the height dimension of the second space are lower, the upper wall portion of the cover member that forms the third space, and the first space that forms the first space A fourth space which is surrounded by the first wall portion of the cover member and the second wall portion of the cover member forming the second space and is opened to the outside is formed, and the fourth space is by a first wall portion and the second wall portion, wherein are of the four-way in the planar direction of the mounting surface is surrounded by two-way and mutually at least adjacent to said second wall portion includes a charging port, the power Control unit and electrically A connector to which a power line for passing is provided is provided, and the connector protrudes toward the fourth space and is surrounded by the first wall portion and the second wall portion. The second electrical device is a contactor for turning on or off an electrical connection between the connector and a battery provided outside the power control unit, and the second space includes The contactor is accommodated.

(2) In the electric vehicle power control unit described in (1) above, the connector may be provided on the second wall portion so as to protrude rearward in the vehicle front-rear direction.

(3) In the electric vehicle power control unit described in (1) or (2) above, the first electric device may be a switching module and a capacitor.

(4) above (1) by the power control unit for an electric vehicle according to any one of - (3), wherein the third space, the contactor electrically connected to the charging diode is provided It may be.

(5) In the electric vehicle power control unit according to any one of (1) to (4), an air conditioner fuse may be provided in the third space.

(6) In the electric vehicle power control unit according to another aspect of the present invention, the electric vehicle power control unit includes an electric device and a housing that houses the electric device, and is disposed in a motor room of the electric vehicle. The control unit, wherein the housing includes an attachment member having an attachment surface to which the electric device is attached, and a cover member that is coupled to the attachment member and covers the electric device, and the attachment member and the The cover member includes a first space in which the first electrical device is accommodated, a second space in which the second electrical device is accommodated, and a third space adjacent to the first space and the second space. The first space, the second space, and the third space are formed adjacent to each other. The height dimension of the third space from the mounting surface is set to be lower than the height dimension of the first space and the second space, and the height dimension of the third space is the first space. And an upper wall portion of the cover member that forms the third space, and a first wall portion of the cover member that forms the first space by being lower than a height dimension of the second space. A fourth space that is surrounded by the second wall portion of the cover member that forms the second space and is opened to the outside. The fourth space includes the first wall portion and the second wall. A portion surrounds at least two adjacent sides of the mounting surface in the planar direction, and the second wall portion is electrically connected to the power supply port and the power control unit. Power line A connector to be joined, and the connector protrudes toward the fourth space and is provided on the second wall portion so as to be surrounded by the first wall portion and the second wall portion; 2 electrical device is a power supply device that can supply power from a battery provided outside the power control unit to a vehicle external device electrically connected through the connector and the power supply port, The power feeding device is accommodated in two spaces.

  According to the power control unit for an electric vehicle described in (1) to (6) above, the housing includes the connector provided on the housing while housing the plurality of electric devices in the single housing. It can protect effectively by enclosing with a wall part and a 2nd wall part.

It is a top view of the vehicle front part of the electric vehicle by which the power control unit which concerns on embodiment of this invention is mounted. It is an enlarged top view of the power control unit. It is a side view of the power control unit. It is a perspective view of the power control unit as seen from the right rear. It is a rear view of the power control unit. It is a disassembled perspective view of the said power control unit seen from the right rear. It is a top view of the heat sink housing | casing which is a housing | casing part of the said power control unit. It is a perspective view of the upper case main body which comprises the upper case which is a housing | casing part of the said power control unit. It is a top view of the upper case main body which comprises the upper case which is a housing | casing part of the said power control unit. It is a top view of the vehicle front part of the electric vehicle by which the power control unit which concerns on other embodiment of this invention is mounted. It is an enlarged top view of the power control unit of FIG.

  Hereinafter, embodiments of the present invention will be described. In the drawings used below, the arrow FR indicates the front (traveling direction) of the vehicle, the arrow UP indicates the upper side of the vehicle, and the arrow LH indicates the left side of the vehicle.

  FIG. 1 shows a vehicle front portion of an electric vehicle 1 on which a power control unit according to an embodiment of the present invention is mounted. A left front fender 3 and a right front fender 4 that cover the left and right front wheels 2A and 2B are provided at the front portion of the electric vehicle 1. The left front fender 3 and the right front fender 4 are connected to a dash panel 5 extending in the vehicle width direction at the rear of each, and the left front fender 3, the right front fender 4 and the dash panel 5 are not shown at the front of the vehicle. A motor room 6 is formed to accommodate a driving motor and the like. The motor room 6 is separated from the rear passenger compartment by a dash panel 5.

  Reference numerals 7A and 7B in the figure indicate headlights connected to the front end portions of the left front fender 3 and the right front fender 4. Bumpers (not shown) are provided between the left and right headlights 7A and 7B. The left front fender 3 and the right front fender 4 have left and right charging ports 8A and 8B, respectively. Charging ports 8A and 8B are covered with lids 9A and 9B, respectively, so that they can be opened and closed.

A power control unit (hereinafter, referred to as a PCU (Power Control Unit)) 10 according to the present embodiment that mainly controls the motor is disposed in the center of the motor room 6 in the vehicle width direction.
The PCU 10 has a substantially rectangular shape when viewed from above, and a radiator 11 is disposed in front of the PCU 10. The radiator 11 cools the coolant of the drive train including the motor and the PCU 10 and the coolant of the battery (not shown) by exchanging heat with the outside air that is the traveling wind. Reference numeral 12 in the figure denotes a unit support frame that supports the PCU 10. The PCU 10 is arranged so that its longitudinal direction is along the vehicle width direction, and is supported by the unit support frame 12 so that its left and right side portions are placed on the unit support frame 12. The electric vehicle 1 is a vehicle with a right-hand drive specification, and a symbol H in the figure indicates a handle provided in the passenger compartment.

Hereinafter, the PCU 10 according to the present embodiment will be described in detail.
2 to 6, the PCU 10 includes a housing 21 that houses a plurality of electrical devices. The casing 21 houses a plurality of electric devices such as an inverter (a switching module 25 described later) that converts electric power from the battery from direct current to alternating current, and a control device that controls the inverter. The housing 21 includes an upper case 23 disposed on the upper side and a lower case 24 disposed on the lower side, and a plate-shaped heat sink housing 22 is attached between the upper case 23 and the lower case 24. ing. The heat sink housing 22 is positioned at an intermediate position in the vertical direction of the housing 21, and an outer peripheral portion thereof is exposed to the outside to constitute a part of the outer wall of the housing 21.

  First, the heat sink housing 22 will be described. FIG. 7 shows a top view of the heat sink housing 22. The heat sink housing 22 is made of a material having high thermal conductivity such as an aluminum alloy, and is formed by molding such as die casting. A plurality of electrical devices are fixed to the upper surface of the heat sink housing 22. A plurality of bolt insertion holes 38 penetrating in the vertical direction are formed in the outer peripheral portion of the heat sink casing 22, and the heat sink casing 22, the upper case 23, the lower case 24, Are integrated.

  A switching module 25 that converts a direct current supplied from a battery (not shown) into a three-layer alternating current and supplies it to the motor is installed in a substantially central region on the upper surface of the heat sink housing 22. On the right side of the switching module 25, a minus-side contactor 26 and a plus-side contactor 27 are installed side by side in the vehicle width direction. The minus-side contactor 26 and the plus-side contactor 27 are electrically connected to a diode 28 installed behind the minus-side contactor 26, and are external to the PCU 10 when charging from a relatively high-voltage rapid charging power source. The electrical connection is switched so as to be turned on or off so that a current does not flow suddenly to the battery disposed therein.

  A substrate 31 is installed behind the diode 28. A high voltage cable for heater 32 and a high voltage cable for compressor 33 are connected to the substrate 31. On the substrate 31, a heater fuse 34 and a compressor fuse 35 are provided. The heater high-voltage cable 32 and the compressor high-voltage cable 33 are electrically connected to them. In addition, a heat sink portion (not shown) is provided on the lower surface of the heat sink housing 22 facing the area where the switching module 25 is installed, and the switching module 25 is cooled by the heat sink portion. The heat sink part is composed of, for example, a plurality of fins or a water jacket through which cooling water flows. Here, an air conditioner is configured by a heater, a compressor, and the like (not shown) connected to the heater high-voltage cable 32 and the compressor high-voltage cable 33.

  Hereinafter, the upper case 23 will be described. The upper case 23 is combined with the heat sink casing 22 to form a storage space for the various electric devices installed on the upper surface of the heat sink casing 22. Specifically, FIG. 7 is compared with FIGS. 2 and 3, and as indicated by a broken line in FIGS. 2 and 3, the upper case 23 includes a first space 100 in which the switching module 25 is accommodated, A second space 101 in which the minus-side contactor 26 and the plus-side contactor 27 are accommodated, and a third space 102 in which the diode 28, the heater fuse 34, and the compressor fuse 35 are accommodated are formed. .

  Referring to FIG. 6, the upper case 23 is connected to the outer peripheral portion of the heat sink housing 22 at the lower outer peripheral edge and rises upward, and the upper case body 23 </ b> A constituting the side wall in the upper case 23 and the upper case body 23 </ b> A And a plurality of lids R that constitute a part of the upper wall in the upper case 23.

  8 and 9, in the present embodiment, the upper case body 23A includes the first peripheral wall 231 that forms the first space 100 by surrounding the switching module 25 from the front, rear, left and right of the vehicle, the negative contactor 26, and the positive A second peripheral wall 232 that forms the second space 101 by surrounding the side contactor 27 from the front, rear, left and right of the vehicle, and the third space 102 by surrounding the diode 28, the heater fuse 34, and the compressor fuse 35 from the rear and right sides. A third peripheral wall 233 to be formed.

The second peripheral wall 232 is positioned adjacent to the right side of the substantially front half portion of the first peripheral wall 231, to the right of the approximate second half portion of the first peripheral wall 231, and behind the second peripheral wall 232. The third peripheral wall 233 is located, and the third peripheral wall 233 is located adjacent to the first peripheral wall 231 and the second peripheral wall 232. The right wall portion of the substantially front half portion of the first peripheral wall 231 and the left wall portion of the second peripheral wall 232 are connected to each other, and the height of the second peripheral wall 232 is greater than the height of the first peripheral wall 231. Has been.
Further, the rear wall portion of the third peripheral wall 233 is continuous with the rear wall portion of the first peripheral wall 231 along the vehicle width direction. The right wall portion of the third peripheral wall 233 is continuous with the right wall portion of the second peripheral wall 232 along the vehicle front-rear direction. The height of the third peripheral wall 233 is smaller than the height of the first peripheral wall 231 and the second peripheral wall 232.

  The first peripheral wall 231 opens upward, and a first lid 234, which is one of the lids R, is detachably attached to the upper portion thereof by bolt fastening or the like. The second peripheral wall 232 is also opened upward, and a second lid 235, which is one of the lids R, is detachably attached to the upper portion thereof by bolt fastening or the like. The first space 100 is formed by attaching the first lid 234 to the first peripheral wall 231. The second space 101 is formed by attaching the second lid 235 to the second peripheral wall 232. Here, by removing the first lid 234 and the second lid 235, the internal electrical device can be maintained.

  Further, an upper wall portion 236 that is integral with the third peripheral wall 233 is formed on the upper portion of the third peripheral wall 233, and an opening 237 is formed in a substantially central region of the upper wall portion 236. A third lid 238, which is one of the lids R, is detachably attached to the opening 237 by bolt fastening or the like, thereby forming the third space 102. Here, as with the first lid 234 and the second lid 235 described above, the internal electrical device can be maintained by removing the third lid 238.

  As described above, the second peripheral wall 232 is positioned adjacent to the right side of the substantially front half portion of the first peripheral wall 231, the right side of the approximate second half portion of the first peripheral wall 231, and the second peripheral wall A third peripheral wall 233 is located behind the H.232. Since the third peripheral wall 233 is positioned adjacent to the first peripheral wall 231 and the second peripheral wall 232, the inner first space 100, the second space 101, and the third space 102 are adjacent to each other. It has become. More specifically, as shown in FIG. 2, the first space 100 is adjacent to the second space 101 and the third space 102 in the vehicle width direction, and the second space 101 and the third space 102 are front and rear of the vehicle. Adjacent in direction. That is, in the present embodiment, the second space 101 and the third space 102 are adjacent to each other in a direction shifted by 90 degrees with respect to the direction in which the first space 100 and the second space 101 are adjacent.

  Here, as described above, in the upper case main body 23 </ b> A, the height of the third peripheral wall 233 is smaller than the height of the first peripheral wall 231 and the second peripheral wall 232. Therefore, the height dimension of the third space 102 from the upper surface of the heat sink housing 22 coupled to the upper case 23 is set to be lower than the height dimension of the first space 100 and the second space 101.

  Accordingly, as shown in FIGS. 2 to 4, in the PCU 10, the upper wall portion 236 of the upper case body 23 </ b> A that forms the third space 102 and the upper case body 23 </ b> A that forms the first space 100. The fourth space S surrounded by the right wall portion 231R of the first peripheral wall 231 and the rear wall portion 232B of the second peripheral wall 232 of the upper case main body 23A forming the second space 101 and opened to the outside. (Indicated by a two-dot chain line) is formed. The fourth space S is surrounded from different directions by the right wall portion 231R and the rear wall portion 232B. Specifically, the left side and the front of the fourth space S are surrounded by the right wall portion 231R and the rear wall portion 232B.

  2 to 5, the rear wall portion 232B of the second peripheral wall 232 is provided with a minus connector 46 and a plus connector 47 connected to the minus side contactor 26 and the plus side contactor 27 at the rear thereof. It is provided to face.

  Here, the minus connector 46 and the plus connector 47 protrude rearward toward the fourth space S, and are provided on the rear wall portion 232B so as to be surrounded by the right wall portion 231R and the rear wall portion 232B. . The minus connector 46 and the plus connector 47 are connected to a quick charging cable 30 that is bifurcated. Referring to FIG. 1, in the present embodiment, the left charging port 8A is set as a quick charging port connected to the quick charging power source, and a charging port (not shown) and PCU 10 arranged in the charging port 8A are connected to the quick charging port. It is connected by a cable 30 for use.

  In FIG. 5, reference numeral 39 denotes a capacitor. The capacitor 39 is disposed above the switching module 25 and electrically connected thereto, and smoothes the current supplied to the switching module 25. The capacitor 39 is also accommodated in the first space 100 formed by the heat sink housing 22 and the upper case 23.

As described above, in the PCU 10, the casing 21 includes a heat sink casing 22 that is a mounting member having a mounting surface to which an electrical device is mounted, and an upper that is coupled to the heat sink casing 22 and covers the electrical device. A heat sink housing 22 and an upper case 23, in which a first space 100, a second space 101, and a third space 102 in which an electric device is stored are formed. The first space 100, the second space 101, and the third space 102 are formed adjacent to each other. And the height dimension of the 3rd space 102 from the attachment surface of the electric device of the heat sink housing | casing 22 is set lower than the height dimension of the 1st space 100 and the 2nd space 101, and, thereby, the 3rd space 102 is set. The upper wall portion 236 of the upper case main body 23A forming the first space 100, the right wall portion 231R of the first peripheral wall 231 of the upper case main body 23A forming the first space 100, and the upper case forming the second space 101 A fourth space S that is surrounded by the rear wall portion 232B of the second peripheral wall 232 of the main body 23A and is opened to the outside is formed, and this fourth space S is connected to the right wall portion 231R of the first peripheral wall 231. The second peripheral wall 232 is surrounded by the rear wall portion 232B. Specifically, the left side and the front of the fourth space S are surrounded by the right wall part 231R and the rear wall part 232B.
The rear wall portion 232B of the second peripheral wall 232 has a minus connector 46 to which a quick charging port (charging port 8A) and a quick charging cable 30 for electrically connecting the PCU 10 are coupled. A positive connector 47 is provided. The minus connector 46 and the plus connector 47 protrude toward the fourth space S and are formed on the rear wall portion 232B so as to be surrounded by the right wall portion 231R of the first circumferential wall 231 and the rear wall portion 232B of the second circumferential wall 232. Is provided. In the second space 101, the minus side contactor 26 and the plus side contactor 27 are accommodated.

  In such a PCU 10, an upper case main body 23 </ b> A provided in the casing 21 includes a minus connector 46 and a plus connector 47 for quick charging provided in the casing 21 while housing a plurality of electrical devices in a single casing 21. The connector can be effectively protected by surrounding the right wall portion 231R of the first peripheral wall 231 and the rear wall portion 232B of the second peripheral wall 232 of the upper case body 23A. That is, the minus connector 46 and the plus connector 47 are protected from the external force from the left by the right wall portion 231R of the first peripheral wall 231 and are protected from the external force from the front by the rear wall portion 232B of the second peripheral wall 232.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and can be appropriately changed without departing from the spirit thereof.

  For example, in the above embodiment, the configuration in which the fourth space S is surrounded by the right wall portion 231R of the first peripheral wall 231 and the rear wall portion 232B of the second peripheral wall 232 is surrounded on the left side and the front side. The direction is not limited. Further, depending on the shape of the upper case 23, the fourth space S may be surrounded by not only two sides such as the left side and the front side but also three sides and four sides.

  In this embodiment, an example of a quick charging connector has been described. However, this connector may be a power feeding connector. When the minus connector 48 and the plus connector 49 for feeding are provided, one end of the feeding cable 40 is connected to the connector, and the other end is routed to the feeding port 13A or 13B arranged at an appropriate position of the vehicle. The vehicle external device existing outside the vehicle is electrically connected to the PCU 10 via the power supply port 13A or 13B. In this case, a power feeding device 29 that can supply power from the battery to the vehicle external device is provided in the second space 101 adjacent to the connector.

  According to the power control unit of the electric vehicle according to the present invention, the first wall portion and the second wall portion that the housing includes the connector provided on the housing while the plurality of electric devices are housed in the single housing. It can be effectively protected by enclosing with.

DESCRIPTION OF SYMBOLS 1 Electric vehicle 2A Left front wheel 2B Right front wheel 3 Left front fender 4 Right front fender 5 Dash panel 6 Motor room 7A, 7B Headlight 8A, 8B Charging port 9A, 9B Lid 10 Power control unit (PCU)
11 Radiator 12 Unit Support Frame 13A, 13B Power Feed Port 21 Case 22 Heat Sink Case (Mounting Member)
23 Upper case (cover member)
23A Upper case body 24 Lower case 25 Switching module (first electric device)
26 Negative contactor (second electrical device)
27 Positive contactor (second electrical device)
28 Diode (fast charging diode)
29 Power Supply Device 30 Quick Charging Cable (Power Line)
31 Substrate 32 High voltage cable for heater 33 High voltage cable for compressor 34 Heater fuse (fuse)
35 Compressor fuse (fuse)
38 Bolt insertion hole 39 Capacitor (first electrical device)
40 Power supply cable (power line)
46 Negative connector (connector)
47 Plus connector (connector)
48 Negative connector for power supply (connector)
49 Positive connector (connector) for power supply
100 1st space 101 2nd space 102 3rd space 231 1st surrounding wall 231R Right wall part (1st wall part)
232 2nd surrounding wall 232B Rear wall part (2nd wall part)
233 Third peripheral wall 234 First lid 235 Second lid 236 Upper wall portion 237 Opening portion 238 Third lid H Handle R Lid S Fourth space FR Front of vehicle LH Left of vehicle UP UP of vehicle

Claims (6)

An electric device, and a housing for storing the electric device, the electric vehicle power control unit disposed in a motor room of the electric vehicle,
The housing includes an attachment member having an attachment surface to which the electric device is attached, and a cover member that is coupled to the attachment member and covers the electric device,
The attachment member and the cover member are adjacent to the first space in which the first electric device is accommodated, the second space in which the second electric device is accommodated, the first space, and the second space. A third space that fits,
The first space, the second space, and the third space are formed adjacent to each other.
The height dimension of the third space from the mounting surface is set lower than the height dimension of the first space and the height dimension of the second space,
The upper wall portion of the cover member that forms the third space by the height dimension of the third space being lower than the height dimension of the first space and the height dimension of the second space. And a first wall portion of the cover member that forms the first space and a second wall portion of the cover member that forms the second space, thereby forming a fourth space that is open to the outside. And
The fourth space is surrounded by at least two adjacent ones of the four directions in the plane direction of the mounting surface by the first wall and the second wall.
Wherein the second wall portion, and a charging port, and the power control unit, connector power line for electrically connecting is coupled is provided,
The connector protrudes toward the fourth space and is provided on the second wall portion so as to be surrounded by the first wall portion and the second wall portion,
The second electrical device is a contactor for turning on or off an electrical connection between the connector and a battery provided outside the power control unit;
The contactor is stored in the second space.
A power control unit for an electric vehicle.   The power control unit for an electric vehicle according to claim 1, wherein the connector is provided on the second wall portion so as to protrude rearward in the vehicle front-rear direction.   The power control unit for an electric vehicle according to claim 1, wherein the first electric device is a switching module and a capacitor. Wherein the third space, the power control unit of the electric vehicle according to claim 1, wherein the contactor electrically connected to the charging diode is provided.   The power control unit for an electric vehicle according to any one of claims 1 to 4, wherein a fuse for an air conditioner is provided in the third space. An electric device, and a housing for storing the electric device, the electric vehicle power control unit disposed in a motor room of the electric vehicle,
The housing includes an attachment member having an attachment surface to which the electric device is attached, and a cover member that is coupled to the attachment member and covers the electric device,
The attachment member and the cover member are adjacent to the first space in which the first electric device is accommodated, the second space in which the second electric device is accommodated, the first space, and the second space. A third space that fits,
The first space, the second space, and the third space are formed adjacent to each other.
The height dimension of the third space from the mounting surface is set lower than the height dimension of the first space and the height dimension of the second space,
The upper wall portion of the cover member that forms the third space by the height dimension of the third space being lower than the height dimension of the first space and the height dimension of the second space. And a first wall portion of the cover member that forms the first space and a second wall portion of the cover member that forms the second space, thereby forming a fourth space that is open to the outside. And
The fourth space is surrounded by the first wall portion and the second wall portion by at least two adjacent ones of the four directions in the plane direction of the mounting surface;
The second wall is provided with a connector to which a power line for electrically connecting the power supply port and the power control unit is coupled,
The connector protrudes toward the fourth space and is provided on the second wall portion so as to be surrounded by the first wall portion and the second wall portion,
The second electric device is a power feeding device that can supply power from a battery provided outside the power control unit to a vehicle external device electrically connected through the connector and the power feeding port.
The power supply device is accommodated in the second space.
A power control unit for an electric vehicle.

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