JP2019038446A - vehicle - Google Patents

Abstract

To inhibit occurence of heat accumulation around a cooling object unit disposed in a space below a seat in a vehicle.SOLUTION: A vehicle in which a space is formed below a seat includes an air intake port, a cooling object unit, a blower, an exhaust duct, and an exhaust port. The air intake port introduces air in a vehicle cabin into a space. The cooling object unit is disposed in the space and houses a cooling object. The blower blows air in the space into the cooling object unit. The exhaust duct exhausts air from the cooling object unit. The exhaust port exhausts air from the exhaust duct to the outside of the space. The blower is located at the vehicle rear side relative to the air intake port. The cooling object unit is located between the air intake port and the blower.SELECTED DRAWING: Figure 3

Description

  This specification discloses the technique regarding a vehicle. In particular, the present invention relates to a vehicle in which a space is formed under a seat and a cooling object is disposed in the space.

  In a vehicle, a cooling target unit containing a cooling target object is disposed in a space under the seat, and air taken into the space under the seat from the passenger compartment is blown to the cooling target unit by a blower to cool the cooling target object. The technology to do is known. As a cooling target object, a converter, an inverter, a charger, a secondary battery, etc. can be considered, for example. In Patent Document 1, a battery pack is disposed as a cooling target unit in a space under the seat from the driver seat to the passenger seat, and air taken into the space under the seat from the passenger compartment is blown to the driver seat side by a blower on the passenger seat side. A technique for blowing air to a battery pack is disclosed.

JP 2014-54864 A

  In the technique of Patent Document 1, the air flow around the cooling target unit arranged in the space under the seat has not been sufficiently studied, and there is a possibility that heat accumulation will occur around the cooling target unit where the air hardly flows. was there. In particular, in the technique of Patent Document 1, air taken into the space under the seat from the rear side of the vehicle is blown into the inside of the cooling target unit by the blower on the passenger seat side. It was difficult for air to flow to the side, and there was a possibility of heat accumulation.

  The technology disclosed in this specification relates to a vehicle in which a space is formed under a seat. The vehicle includes an intake port, a cooling target unit, a blower, an exhaust duct, and an exhaust port. The air intake port introduces air in the passenger compartment into the space. The cooling target unit accommodates a cooling target and is disposed in the space. The blower blows air in the space into the cooling target unit. The exhaust duct exhausts air from the inside of the unit to be cooled. The exhaust port exhausts air out of the space from the exhaust duct. The blower is located on the vehicle rear side from the intake port. The cooling target unit is located between the air inlet and the blower.

  According to the vehicle in the above aspect, since an air flow can be generated between the vehicle front side and the vehicle rear side of the cooling target unit, it is possible to suppress the generation of heat pool around the cooling target unit.

It is explanatory drawing which shows the structure of a vehicle. It is explanatory drawing which shows the external appearance structure of a sheet | seat lower part structure. It is sectional drawing of the sheet | seat lower structure cut | disconnected by the F3-F3 line | wire of FIG.

  FIG. 1 is an explanatory diagram showing the configuration of the vehicle 10. The vehicle 10 is an electric vehicle that generates at least part of the power for driving the driving wheels by using an electric motor. The vehicle 10 is a hybrid vehicle that includes an internal combustion engine in addition to an electric motor as a power source.

  “Front”, “rear”, “upper”, and “lower” in the figure indicate directions when the traveling direction of the vehicle 10 is defined as “front”.

  The vehicle 10 includes a vehicle body 110, a front wheel 152, and a rear wheel 154. The vehicle body 110 constitutes an outer shell of the vehicle 10. The front wheel 152 is a wheel located in front of the vehicle body 110. The rear wheel 154 is a wheel located behind the vehicle body 110.

  The vehicle 10 includes a vehicle interior 120 that is a space for placing an occupant inside the vehicle body 110. The vehicle 10 includes a front seat 132 and a rear seat 134 that are passenger seats in the passenger compartment 120.

  The vehicle 10 includes a seat lower structure 200 below the rear seat 134. The seat substructure 200 defines a space 210 below the rear seat 134. The space 210 is used to cool the object to be cooled using the air in the passenger compartment 120.

  FIG. 2 is an explanatory diagram showing the external configuration of the rear seat 134 and the seat lower structure 200. The seat lower structure 200 includes an intake port 202 and an exhaust port 208.

  The air inlet 202 of the seat lower structure 200 introduces the air in the passenger compartment 120 into the space 210 (arrow IN in FIG. 2). The air inlet 202 is located in front of the seat lower structure 200 and takes air from the front of the seat lower structure 200 into the space 210. The seat lower structure 200 is provided with three air inlets 202. In other words, the intake port 202 is provided in the front partition plate 211 that separates the space 210 from the external space.

  The air outlet 208 of the seat lower structure 200 discharges the air used for cooling the object to be cooled in the space 210 to the outside of the space 210 (arrow EX in FIG. 2). The exhaust port 208 exhausts the interior part 140 provided in the vehicle interior 120. Specifically, the interior part 140 is a trim or a scuff. The seat lower structure 200 is provided with two exhaust ports 208. The two exhaust ports 208 are located on the right side and the left side of the seat lower structure 200, respectively. In other words, the exhaust port 208 is provided in the side partition plate 212 that separates the space 210 from the external space.

  3 is a cross-sectional view of the sheet lower structure 200 cut along the line F3-F3 in FIG. The vehicle 10 includes a cooling target unit 220, a blower 230, and an exhaust duct 240 on the right side and the left side, respectively, as components disposed in the space 210 of the seat lower structure 200.

  The cooling target unit 220 of the vehicle 10 is a container that houses the cooling target 222. The cooling target 222 in FIG. 3 is hatched. The cooling target 222 is a secondary battery, a converter, an inverter, or the like. The cooling target unit 220 is provided in a state of being separated from at least the front, rear, left and right partition plates in the seat lower structure 200 so that air can flow around the cooling target unit 220. The cooling object 222 is provided in a state separated from at least the front, rear, left and right inner walls of the cooling target unit 220 so that air can flow around the cooling object 222.

  The blower 230 of the vehicle 10 is a blower that blows air in the space 210 into the cooling target unit 220. The blower 230 is provided on the vehicle rear side of the cooling target unit 220, and is further located on the vehicle rear side from the air inlet 202. The blower 230 takes in air from the inside in the vehicle width direction (left-right direction) of the vehicle 10 in the space 210.

  The exhaust duct 240 of the vehicle 10 is a pipe that exhausts air from the inside of the cooling target unit 220. The exhaust duct 240 connects between the cooling target unit 220 and the exhaust port 208. The exhaust port 208 exhausts air from the exhaust duct 240 to the outside of the space 210.

  The cooling target unit 220 is located between the air inlet 202 and the blower 230. Line segments L1, L2, and L3 in FIG. 3 are line segments that connect the intake port 202 and the blower 230. The cooling target unit 220 is located on the line segments L1, L2, and L3. The positional relationship with the air inlet 202 is the same not only for the left cooling target unit 220 but also for the right cooling target unit 220.

  The solid arrows in FIG. 3 indicate the flow of air before being taken into the blower 230 in the space 210. The broken-line arrows in FIG. 3 indicate the flow of air taken into the blower 230. The air taken in from the intake port 202 on the front side of the vehicle passes between the two cooling target units 220 in the space 210 and then wraps around the rear side of each cooling target unit 220. A part of the air that has flowed to the rear side of the vehicle is taken into the cooling target unit 220 by the blower 230. The air taken into the cooling target unit 220 is convected through the cooling target unit 220 and then discharged from the exhaust port 208 to the outside of the space 210 through the exhaust duct 240. The air that has not been taken into the cooling target unit 220 on the rear side of the vehicle convects around the cooling target unit 220 to the front side of the vehicle, and then again with the air taken in from the intake port 202. Go around the back of the vehicle.

  According to the technology described above, since an air flow can be generated between the vehicle front side and the vehicle rear side of the cooling target unit 220, the generation of heat pool around the cooling target unit 220 can be suppressed.

  The seat lower structure 200 may be disposed below the front seat 132. The vehicle 10 may include a third row of seats behind the rear seat 134 in addition to the front seat 132 and the rear seat 134.

  The number of intake ports 202 may be two or less, or four or more.

  The exhaust port 208 of the seat lower structure 200 may be exhausted into the passenger compartment 120. The exhaust port 208 may exhaust the outside of the vehicle 10. The number of the exhaust ports 208 may be one, or may be three or more.

  The number of cooling target units 220 may be one, or may be three or more. The cooling target 222 may be an electronic component that generates heat when energized, such as a converter, an inverter, or a charger.

  Although the embodiments have been described in detail above, these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and changes of the above-described embodiment. The technical elements described in this specification or the drawings exhibit technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. Further, the technology described in this specification or the drawings achieves a plurality of objects at the same time, and has technical usefulness by achieving one of the objects.

DESCRIPTION OF SYMBOLS 10 ... Vehicle 110 ... Vehicle body 120 ... Cabin compartment 132 ... Front seat 134 ... Rear seat 152 ... Front wheel 154 ... Rear wheel 200 ... Seat lower structure 202 ... Intake port 208 ... Exhaust port 210 ... Space 211 ... Front partition plate 212 ... Side partition Plate 220 ... Cooling target unit 222 ... Cooling target object 230 ... Blower 240 ... Exhaust duct

Claims (1)

A vehicle with a space under the seat,
An air inlet for introducing the air in the passenger compartment into the space;
A cooling target unit that contains a cooling target and is disposed in the space;
A blower for blowing air in the space into the cooling target unit;
An exhaust duct for discharging air from within the cooling target unit;
An exhaust port for exhausting air out of the space from the exhaust duct;
With
The blower is located on the vehicle rear side from the intake port,
The vehicle to be cooled is located between the air inlet and the blower.

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