JP2016159638A - Hybrid vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve workability when cleaning an inverter and the inside of a cover member.SOLUTION: A hybrid vehicle includes: an inverter 108 mounted in a storage space in an underfloor of a cabin in a vehicle body; a cover member 112 for covering the inverter; a water supply hole 130 formed on a cabin side in the cover member to introduce water to a clearance S between the cover member and the inverter; and a water drainage hole 128 formed in a position separated apart from the cabin relative to the water supply hole in the cover member to drain the water introduced into the clearance.SELECTED DRAWING: Figure 6

Description

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

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

  When an inverter is mounted under the floor of an engine room or a trunk room, a significant design change is required from the body of an engine vehicle that does not include a traveling motor, resulting in high costs. Therefore, a configuration in which the inverter is disposed under the floor of the passenger compartment where the passenger enters is disclosed (for example, Patent Document 1). Such an inverter is covered with a cover member for sound insulation and impact protection.

JP 2003-169403 A

  When the inverter is mounted under the floor of the passenger compartment as described above, the cover member may be exposed to salt water or the like. Once the salt water enters the inside of the cover member, the salt content of the salt water remains even if the water is discharged. Therefore, it is necessary to wash the inside of the inverter or the cover member with water. However, in order to clean, the cover member had to be removed, and workability was low.

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

  In order to solve the above-described problems, a hybrid vehicle according to the present invention is formed on the vehicle compartment side of the vehicle body, the inverter mounted in the accommodation space under the floor of the vehicle compartment, the cover member covering the inverter, and the cover member. A water supply hole that guides water to a gap between the cover member and the inverter, and a drain hole that is formed at a position farther from the vehicle compartment than the water supply hole in the cover member and discharges the water guided to the gap. It is characterized by providing.

  You may further provide the through-hole which is formed in the site | part facing a cover member among the floor surfaces of a compartment, and penetrates to the accommodation space under a floor.

  A water supply hole may be formed in the position which opposes a through-hole among cover members.

  According to the present invention, it is possible to improve workability in cleaning the inverter and the cover member.

It is a side view of a hybrid vehicle. It is a disassembled perspective view of an inverter unit. It is a perspective view of the inverter unit attached to the vehicle body. It is explanatory drawing for demonstrating a drain hole. It is a figure which shows the service hole (through-hole) formed in the vehicle interior. 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 shown in the embodiments are merely examples for facilitating understanding of the invention, and do not limit the present invention unless otherwise specified. In the present specification and drawings, elements having substantially the same function and configuration are denoted by the same reference numerals, and redundant description is omitted, and elements not directly related to the present invention are not illustrated. To do.

  FIG. 1 is a side view of hybrid vehicle 100. As shown in FIG. 1, an engine 102, a motor 104, and a battery 106 are mounted on the hybrid vehicle 100. The engine 102 is disposed on the front side of the vehicle body 100a in the front-rear direction (left-right direction in FIG. 1), 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, the hybrid vehicle 100 has a motor travel mode in which the motor 104 runs in preference to 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 for traveling together is prepared.

For example, in the hybrid vehicle 100, when the traveling mode is selected according to the remaining amount of the battery 106 and the engine combined mode is selected, the driving state of the engine 102 and the motor 104 is switched according to the traveling state, It is possible to increase energy efficiency and reduce exhaust gas such as CO ₂ .

  The hybrid vehicle 100 is equipped with an inverter 108. The inverter 108 is disposed in the accommodation space L formed under the floor of the passenger compartment 100b where the passenger enters, and is located between the motor 104 and the battery 106 in the front-rear direction of the vehicle body 100a.

  Inverter 108 receives a direct current from battery 106, converts the direct current to an alternating current, and supplies the alternating current to motor 104. Hereinafter, after the structure around the inverter 108 is described in detail, the arrangement of the inverter 108 is described in detail.

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

  The main body 108a of the inverter 108 has a substantially rectangular parallelepiped shape, and the cover member 112 covers the entire surface of the main body 108a of the inverter 108, thereby shielding switching noise and electromagnetic noise generated from 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, 116a, and side walls 114b, 116b are erected from three sides of the bottom surfaces 114a, 116a excluding the rear surface side in the front-rear direction of the vehicle body 100a. The rear cover 118 has a generally flat plate shape.

  The upper cover 114 covers 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 in the front-rear direction of the vehicle body 100a. At this time, the flange of the side wall 114b of the upper cover 114 and the flange of the side wall 116b of the lower cover 116 come into contact with each other to cover the side surface 108e of the main body 108a and the front surface 108f in the front-rear direction of the vehicle body 100a.

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

  After being covered with the cover member 112, the inverter 108 is installed under the floor of the passenger compartment 100b as described above. At this time, since there is a possibility that pebbles will bounce off the road surface and collide or water may enter, an under cover 122 and a rear cover 124 are provided to protect the inverter 108. The under cover 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 under cover 122 is provided with a drain hole 122a, and water that has entered the inside of the under cover 122 (on the inverter 108 side) is discharged from the drain hole 122a.

  A ground protector (not shown) having a 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 caused by the ground.

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

  As shown in FIG. 4, the drain 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 in 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 under the floor. The service hall 132 is used when performing wiring work of electrical components arranged in the accommodation space L from the passenger compartment 100b side.

  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 that 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 in FIG. However, for easy understanding, the cross-sectional shape of the inverter 108 is not shown in FIG. Moreover, the broken-line arrow in FIG. 6 shows the flow of water. 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 that is located on the opposite side of the drain hole 128 across the inverter 108.

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

  When the inverter 108 is mounted under the floor of the passenger compartment 100b, 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 hole 130 and the drainage hole 128, water can be poured into the gap S from the water supply hole 130 and the gap S can be cleaned without removing the cover member 112. Therefore, it is possible to improve the cleaning workability.

  The preferred embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the above-described embodiments, and various modifications within the scope described in the claims. Needless to say, the modified examples also belong to 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, if a water supply pipe that guides water supply to the water supply hole 130 is installed in advance, the water supply hole 130 can be supplied with water easily. However, the operation of supplying water to the water supply hole 130 through the service hole 132 is further facilitated by causing the service hole 132 to face the cover member 112 as in the above-described embodiment.

  In the above-described embodiment, a configuration in which a part of the water supply hole 130 faces the service hole 132 is taken as an example. However, the whole water supply hole 130 may face the service hole 132, or the water supply The hole 130 may not face the service hole 132 at all. However, as in the above-described embodiment, by making at least a part of the water supply hole 130 face the service hole 132, the operation of supplying water to the water supply hole 130 through the service hole 132 becomes easier.

  The present invention can be used for a hybrid vehicle equipped with an inverter.

L Storage space S Clearance 100 Hybrid vehicle 100a Car body 100b Car room 100c Floor 108 Inverter 112 Cover member 128 Drain hole 130 Water supply hole 132 Service hole (through hole)

Claims (3)

Of the vehicle body, an inverter mounted in the accommodation space under the floor of the passenger compartment,
A cover member covering the inverter;
A water supply hole formed on the vehicle compartment side of the cover member, for guiding water to a gap between the cover member and the inverter;
Of the cover member, a drain hole that is formed at a position farther from the vehicle compartment than the water supply hole, and discharges the water guided to the gap,
A hybrid vehicle comprising: A through hole formed in a portion of the floor surface of the passenger compartment facing the cover member and penetrating to the accommodation space under the floor;
The hybrid vehicle according to claim 1, further comprising:   The hybrid vehicle according to claim 2, wherein the water supply hole is formed at a position facing the through hole in the cover member.

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