JP6527348B2 - Hybrid vehicle - Google Patents

Description

  The present invention relates to a hybrid vehicle equipped with an inverter.

  BACKGROUND In recent years, hybrid vehicles that travel with the driving force of both an engine and a motor have become widespread. An inverter is mounted on the hybrid vehicle, and the inverter converts DC power output from the battery into AC power and supplies the AC power.

  When the inverter is mounted in the engine room or under the floor of the trunk room, a major design change is required from the vehicle body of the engine vehicle that is not equipped with a motor for traveling, which increases the cost. Then, the structure which arrange | positions an inverter under the floor of the compartment which a passenger | crew enters is disclosed (for example, patent document 1). Such an inverter is covered by a cover member for sound insulation and impact protection.

JP 2003-169403 A

  When the inverter is mounted under the floor of the cabin as described above, the cover member may be exposed to salt water or the like. Once salt water infiltrates the inside of the cover member, salt water remains even if the water is drained, so it is necessary to wash the interior of the inverter and the cover member by pouring water or the like. However, in order to wash | clean, it had to remove a cover member and the workability was low.

  Then, this invention aims at providing the hybrid vehicle which can improve workability | operativity in washing | cleaning of an inverter and the inside of a cover member.

In order to solve the above problems, the hybrid vehicle of the present invention covers an inverter mounted in a housing space under a floor of a vehicle compartment, and covers the inverter for sound insulation or shock protection , and around the inverter. A cover member forming a gap at the upper side, a water supply hole formed on the upper side facing the vehicle compartment side of the cover member for guiding water to the gap between the cover member and the inverter, and a cover Of the cover member, which is formed at the lower side of the cover member on the road surface side, and which discharges the water led to the gap, and a portion of the floor surface of the compartment facing the cover member. It is formed, penetrates to the storage space under the floor, faces the service hole used for cleaning work in the storage space and wiring work of electrical components, and the drainage hole from the road surface side, and drains the water discharged from the drainage hole Drain Is provided, extending from the cover member to the front-rear direction of the rear of the vehicle body, includes an under cover for covering the inverter cover member is attached, the water supply hole of a cover member, at a position opposed to the service hole It is characterized in that it can be formed and can be supplied with water from the service hall .

  According to the present invention, the workability in cleaning the inside of the inverter and the cover member can be improved.

FIG. 1 is a side view of a hybrid vehicle. It is an exploded perspective view of an inverter unit. It is a perspective view of the inverter unit attached to the vehicle body. It is an explanatory view for explaining a drainage hole. It is a figure which shows the service hole (penetration hole) formed in the compartment. It is a schematic sectional drawing of a cover member and an inverter.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values and the like shown in this embodiment are merely examples for facilitating the understanding of the invention, and do not limit the present invention unless otherwise specified. In the specification and the drawings, elements having substantially the same functions and configurations will be denoted by the same reference numerals to omit repeated description, and elements not directly related to the present invention will not be illustrated. Do.

  FIG. 1 is a side view of hybrid vehicle 100. As shown in FIG. 1, engine 102, motor 104, and battery 106 are mounted on hybrid vehicle 100. The engine 102 is disposed on the front side in the front-rear direction (left and right direction in FIG. 1) of the vehicle body 100 a, and the motor 104 is disposed behind the engine 102. The battery 106 is disposed on the rear side of the vehicle body 100a.

  Here, in the hybrid vehicle 100, a motor travel mode in which the motor 104 travels with priority over the engine 102 when the remaining amount of the battery 106 is sufficient, and the motor 104 and the engine 102 when the remaining amount of the battery 106 is small. A traveling mode such as an engine combined mode in which the vehicle travels in combination with the vehicle is prepared.

For example, in hybrid vehicle 100, when the traveling mode is selected according to the remaining amount of battery 106 and the engine combined mode is selected, the driving state of engine 102 and motor 104 is switched according to the traveling state, to increase the energy efficiency, it is possible to reduce the exhaust gas such as CO _2.

  In addition, inverter 108 is mounted on hybrid vehicle 100. The inverter 108 is disposed in a storage space L formed under the floor of the passenger compartment 100b in which a passenger enters, and is located between the motor 104 and the battery 106 in the front-rear direction of the vehicle body 100a.

  Then, inverter 108 receives direct current from battery 106, converts the direct current into alternating current, and supplies it to motor 104. Hereinafter, after the structure around the inverter 108 is described in detail, the arrangement of the inverter 108 will be described in detail.

  FIG. 2 is an exploded perspective view of the inverter unit 110. As shown in FIG. As shown in FIG. 2, the inverter unit 110 includes an inverter 108, a cover member 112 (upper cover 114, lower cover 116, rear cover 118), an under cover 122, and a rear cover 124.

  The main body 108 a of the inverter 108 has a substantially rectangular parallelepiped shape, and the cover member 112 shields switching noise and electromagnetic noise generated from the inverter 108 by covering the entire surface of the main body 108 a of the inverter 108.

  The cover member 112 includes an upper cover 114, a lower cover 116, and a rear cover 118. The upper cover 114 and the lower cover 116 have rectangular bottom surfaces 114a and 116a, and side walls 114b and 116b stand from three sides of the bottom surfaces 114a and 116a except the rear surface side in the front-rear direction of the vehicle body 100a. The rear cover 118 is roughly in the form of a flat plate.

  The upper cover 114 covers the upper surface 108b of the main body 108a of the inverter 108, the lower cover 116 covers the bottom surface 108c, and the rear cover 118 covers the rear surface 108d of the vehicle body 100a in the front-rear direction. At this time, the flange of the side wall 114b of the upper cover 114 abuts against the flange of the side wall 116b of the lower cover 116, and covers the side surface 108e of the main body 108a and the front surface 108f of the vehicle body 100a in the front-rear direction.

  FIG. 3 is a perspective view of the inverter unit 110 attached to the vehicle body 100a, as viewed from the road surface side of the floor of the passenger compartment 100b of the vehicle body 100a. The inverter 108 to which the cover member 112 is attached is covered by the under cover 122 and the rear cover 124 as shown in FIG.

  After being covered by these cover members 112, the inverter 108 is installed under the floor of the passenger compartment 100b as described above. At this time, an undercover 122 and a rear cover 124 are provided to protect the inverter 108 because there is a risk that pebbles may collide from the road surface and collide or water may infiltrate. The undercover 122 covers the inverter 108 from the road surface side, and the rear cover 124 covers the inverter 108 from the rear side in the front-rear direction of the vehicle body 100a.

  The undercover 122 is provided with a drain hole 122a, and the water that has entered the inside of the undercover 122 (inverter 108 side) is drained from the drain hole 122a.

  Further, a grounding protector (not shown) having rigidity higher than that of the under cover 122 and the cover member 112 is disposed between the cover member 112 and the under cover 122 to protect the inverter 108 from an impact due to the ground.

  FIG. 4 is an explanatory view for explaining the drainage hole 128, and is a view of the under floor of the passenger compartment 100b of the vehicle body 100a as viewed from the road surface side. However, in FIG. 4, the under cover 122 and the rear cover 124 are removed from the inverter unit 110 for easy understanding.

  As shown in FIG. 4, the drainage hole 128 is a hole formed in the lower cover 116 of the cover member 112 and penetrating the bottom surface 116 a of the lower cover 116. Further, the upper cover 114 is provided with a water supply hole at a portion hidden in FIG. 4 (see FIG. 2).

  FIG. 5 is a view showing a service hole (through hole) 132 formed in the passenger compartment 100b. As shown in FIG. 5, the service hole 132 is formed in a portion of the floor surface 100c of the passenger compartment 100b facing the cover member 112 (upper cover 114), and penetrates to the accommodation space L below the floor. The service hole 132 is used when performing wiring work or the like of the electrical components disposed in the accommodation space L from the side of the passenger compartment 100b.

  The water supply hole 130 is formed in the upper cover 114 at a position facing the service hole 132. The water supply hole 130 is a hole which penetrates the bottom surface 114 a of the upper cover 114.

  FIG. 6 is a schematic cross-sectional view of the cover member 112 and the inverter 108, and shows a cross section taken along line VI-VI of FIG. However, in order to facilitate understanding, the cross-sectional shape of the inverter 108 is not shown in FIG. Moreover, the arrow of a broken line shows the flow of water in FIG. As shown in FIG. 6, the water supply hole 130 is formed in a portion of the upper cover 114 of the cover member 112 located on the opposite side of the drainage hole 128 with the inverter 108 interposed therebetween.

  The water supply hole 130 is formed on the side of the cover member 112 on the vehicle compartment 100 b side (upper side in FIG. 6), and guides water to the gap S between the cover member 112 and the inverter 108. Further, the drain hole 128 is formed at a position on the cover member 112 that is farther from the vehicle compartment 100 b than the water supply hole 130, and drains the water guided to the gap S. The water drained from the drain hole 128 flows out of the undercover 122 through the drain hole 122a.

  When the inverter 108 is mounted under the floor of the passenger compartment 100 b, the cover member 112 may be exposed to salt water or the like, and salt may remain in the gap S. By providing the water supply holes 130 and the drainage holes 128, water can be poured from the water supply holes 130 into the gap S to clean the gap S without removing the cover member 112. Therefore, the workability of cleaning can be improved.

  While the preferred embodiments of the present invention have been described with reference to the accompanying drawings, it is a matter of course that the present invention is not limited to the above-described embodiments, and various modifications in the scope described in the claims. It goes without saying that the modifications also fall within the technical scope of the present invention.

  For example, in the embodiment described above, the case where the service hole 132 faces the cover member 112 has been described, but the service hole 132 may not face the cover member 112. In this case, for example, by pre-installing a water supply pipe for guiding the water supply to the water supply hole 130, water can be easily supplied to the water supply hole 130. However, by making the service hole 132 face the cover member 112 as in the above-described embodiment, the operation of supplying water to the water supply hole 130 via the service hole 132 is further facilitated.

  In the embodiment described above, a configuration in which a part of the water supply hole 130 is opposed to the service hole 132 is taken as an example, but the whole of the water supply hole 130 may be opposed to the service hole 132 The hole 130 may not face the service hole 132 at all. However, by causing at least a part of the water supply hole 130 to face the service hole 132 as in the embodiment described above, the operation of supplying water to the water supply hole 130 via the service hole 132 is further facilitated.

  The present invention is applicable to a hybrid vehicle equipped with an inverter.

L Storage space S Gap 100 hybrid vehicle 100a vehicle body 100b compartment 100c floor surface 108 inverter 112 cover member 128 drainage hole 130 water supply hole 132 service hole (through hole)

Claims (1)

An inverter mounted in a storage space below the floor of the vehicle compartment, of the vehicle body,
A cover member which covers the inverter for sound insulation or impact protection and forms a gap around the inverter;
A water supply hole formed on the upper side of the cover member facing the compartment side and guiding water to the gap between the cover member and the inverter;
A drain hole formed on the lower side of the cover member which is a position away from the vehicle compartment from the water supply hole in the cover member and which is led to the gap and which is formed on the lower side of the cover member. ,
A service hole which is formed on a portion of the floor surface of the casing facing the cover member, penetrates to the accommodation space below the floor, and is used for cleaning work in the accommodation space and wiring work of the electric components ,
The drainage hole is provided with a drainage hole that faces from the road surface side and allows the water discharged from the drainage hole to flow out, extends from the cover member to the rear of the vehicle body in the front-rear direction, and the cover member is attached An undercover covering the inverted inverter;
Equipped with
The said water supply hole is formed in the position which opposes the said service hole among the said cover members, The water supply work can be performed from this service hole .

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