Waste heat structure in vehicular luggage compartment

Abstract

To provide a waste heat structure in a vehicular luggage compartment which can suppress deterioration of housing capacity in the vehicular luggage compartment.SOLUTION: A waste heat structure in a vehicular luggage compartment comprises: a luggage box 10; a heating component; cooling means; a drafter 40; and a duct 50. The luggage box disposed in a cargo chamber of a vehicle includes: a baggage storage part 11 which stores a baggage; and an equipment storage part 12 which has a shallow bottom relative to the baggage storage part to store the vehicle equipment 60. The heating component is disposed in a front side of the vehicle relative to a front part of the luggage box to generate heat when being driven. The cooling means cools the heating component by air. The drafter is disposed at a vehicle body panel 70 facing the luggage box to communicate with outside of the vehicle. Th duct communicates the cooling means with the drafter and is arranged at a lower part of the luggage box. At least a part of the duct is arranged under the equipment storage part of the luggage box.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a heat dissipation structure for a luggage compartment of a vehicle. [Background technology]

[0002] The luggage compartment of a vehicle has a luggage board and a luggage box installed below the luggage board. The luggage box has a luggage storage section for storing luggage and an equipment storage section for storing vehicle equipment such as a jack (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2017-226297 Summary of the Invention [Problem to be solved by the invention]

[0004] In electric vehicles, inverters and other components are installed further forward than the front of the luggage compartment. The inverter is a heat-generating component that generates heat when the vehicle is in operation. The heat-generating component is cooled by air. The vehicle may have a duct that directs the cooling air that has cooled the heat-generating component to the draft cover at the rear of the vehicle.

[0005] If the duct is installed below the luggage storage section of the luggage box, the bottom of the luggage storage section will become higher, which may reduce the storage capacity.

[0006] SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a heat dissipation structure for a luggage compartment of a vehicle that can suppress a decrease in the storage capacity of the luggage storage section. [Means for solving the problem]

[0007] To achieve the above object, the present invention provides a heat dissipation structure for a vehicle trunk, comprising a luggage box, a heat-generating component, a cooling means, a draft cover, and a duct. The luggage box is installed in the trunk of the vehicle and comprises a luggage storage section for storing luggage and a fixture storage section shallower than the luggage storage section for storing vehicle fixtures. The heat-generating component is installed further forward than the front of the luggage box and generates heat when the vehicle is driven. The cooling means cools the heat-generating component with air. The draft cover is installed on a body panel facing the luggage box and communicates with the outside of the vehicle. The duct communicates the cooling means with the draft cover and is located below the luggage box. At least a portion of the duct is disposed below the fixture storage section of the luggage box. [Effects of the Invention]

[0008] According to the heat dissipation structure for a vehicle trunk of the present invention, at least a portion of the duct is disposed below the equipment storage section of the luggage box, so the bottom of the luggage storage section does not become higher, thereby preventing a decrease in the storage capacity of the luggage storage section. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 2 is a schematic perspective view showing the rear portion of the vehicle. [Figure 2] FIG. 2 is a schematic perspective view showing a luggage box. [Figure 3] FIG. 1 is a cross-sectional view showing a luggage box according to an embodiment. [Figure 4] FIG. 10 is a cross-sectional view showing a modified luggage box. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The embodiments shown here are merely examples for embodying the technical concept of the present invention and are not intended to limit the present invention. Therefore, all other embodiments, examples, and operational techniques that can be conceived by those skilled in the art without departing from the spirit of the present invention are included in the scope and spirit of the present invention, as well as in the scope of the inventions set forth in the claims and their equivalents.

[0011] In addition, for the convenience of illustration and ease of understanding, the drawings attached to this specification may be represented schematically with the scale, aspect ratio, shape, etc. appropriately changed from the actual product, but these are merely examples and do not limit the interpretation of the present invention.

[0012] In this specification, ordinal numbers such as "first," "second," etc. may be used. However, unless otherwise specified, these ordinal numbers are used to identify components for the convenience of explanation, and do not specify the number or order.

[0013] <Embodiment> A heat dissipation structure in a luggage compartment for a vehicle according to an embodiment will be described with reference to FIGS. 1, 2, and 3. FIG.

[0014] The heat dissipation structure for a vehicle luggage compartment includes a luggage box (10), a heat-generating component (20), a cooling means (30), a draft cover (40), and a duct (50).

[0015] The luggage box 10 is installed in the trunk of a vehicle and has a luggage storage section 11 for storing luggage, and a fixture storage section 12 that is shallower than the luggage storage section 11 and stores vehicle fixtures 60. The luggage box 10 is installed below an openable and closable luggage board (not shown). The vehicle fixtures 60 include tools, a jack, and the like. As shown in FIG. 3, the luggage box 10 of this embodiment has multiple fixture storage sections 12 (a first fixture storage section 12a and a second fixture storage section 12b in the illustrated example) whose bottoms 13a, 13b have different depths. The bottom 13a of the first fixture storage section 12a is shallower than the bottom 13b of the second fixture storage section 12b. The dimension h1 between the bottom 13a of the first furniture storage section 12a and the lower surface of the luggage box 10 is larger than the dimension h2 between the bottom 13b of the second furniture storage section 12b and the lower surface of the luggage box 10.

[0016] 1, the heat-generating component 20 is installed further forward than the front of the luggage box 10 and generates heat when the vehicle is driven. The heat-generating component 20 is not particularly limited as long as it generates heat when the vehicle is driven and is cooled by cooling air, but an example of the heat-generating component 20 is an inverter mounted on an electric vehicle.

[0017] The cooling means 30 cools the heat-generating component 20 with air. The cooling means 30 has an electric fan and a cooling passage built into a casing that houses the heat-generating component 20. The cooling means 30 applies airflow generated by the fan to the heat-generating component 20 as cooling air, thereby cooling the heat-generating component 20.

[0018] The draft covers 40 are installed on the body panel 70 facing the luggage box 10 and communicate with the outside of the vehicle. The number and locations of the draft covers 40 are not particularly limited, but in this embodiment, they are installed on the body panel 70 at the rear of the vehicle and on the body panel 70 at the side of the vehicle.

[0019] The duct 50 communicates between the cooling means 30 and the draft lid 40, and is set below the luggage box 10. In Fig. 1, the luggage box 10 is indicated by a two-dot chain line, the duct 50 is indicated by a dashed line, and the flow of cooling air (heat exhaust path 80) is indicated by a solid arrow.

[0020] As shown in Fig. 3, the duct 50 is disposed below the equipment storage section 12 of the luggage box 10. With this configuration, the bottom 11a of the luggage storage section 11 of the luggage box 10 does not become higher. Therefore, a decrease in the storage capacity of the luggage storage section 11 can be suppressed.

[0021] The duct 50 of the embodiment is formed by the notch 14 formed in the outer surface of the luggage box 10 and the vehicle body panel 70. Although the duct 50 can be formed from a hollow pipe member, the above configuration eliminates the need to form the duct 50 from a hollow pipe member, thereby reducing costs.

[0022] Although the material for forming the luggage box 10 is not particularly limited, it is preferably formed from a foam material. With this configuration, since the foam material has excellent heat insulating properties, it is possible to suppress temperature increases in the luggage storage area 11 and the equipment storage area 12 even if the duct 50 is disposed below the equipment storage area 12. The foam material can be a foam resin such as polyethylene or polypropylene.

[0023] The duct 50 is disposed at the bottom of the furniture storage section 12 (first furniture storage section 12a) that has the larger dimension (h1, h2) between the bottoms 13a, 13b and the lower surface of the luggage box 10, among the multiple furniture storage sections 12 (first furniture storage section 12a and second furniture storage section 12b). With this configuration, the height dimension of the duct 50 is less likely to be restricted. This allows for greater freedom in designing the duct 50.

[0024] <Modification> FIG. 4 is a cross-sectional view showing a luggage box 10 of a modified example.

[0025] This modified example differs from the embodiment in which the entire duct 50 is disposed below the equipment storage section 12 in that a portion of the duct 50 is disposed below the equipment storage section 12 of the luggage box 10 .

[0026] In a modified example, at least a portion of the duct 50 is disposed below the equipment storage section 12 of the luggage box 10. With this configuration, the portion of the bottom 11a of the luggage storage section 11 that is elevated can be reduced compared to when the entire duct 50 is located below the luggage storage section 11. Therefore, a decrease in the storage capacity of the luggage storage section 11 can be suppressed.

[0027] The above describes embodiments and variations of the heat dissipation structure in a vehicle luggage compartment of the present invention, but the present invention is not limited to the configurations described in the above embodiments and variations, and can be modified as appropriate based on the claims.

[0028] The following embodiments are also included within the scope of the present invention: a heat dissipation structure in a luggage compartment for a vehicle as described in claim 2 having the features of claim 3; a heat dissipation structure in a luggage compartment for a vehicle as described in claim 2 or 3 having the features of claim 4. [Explanation of symbols]

[0029] 10 Luggage Box 11 Luggage compartment 11a bottom 12 Equipment storage area 12a First Equipment Storage Section 12b Second equipment storage area 13a bottom 13b bottom 14 Cutout 20 Heat-generating components 30 Cooling means 40 Draft 50 Duct 60 Vehicle equipment 70 Body Panel 80 Heat dissipation path

Claims

1. a luggage box that is installed in a trunk of a vehicle and has a luggage storage section that stores luggage and a fixture storage section that is shallower than the luggage storage section and stores vehicle fixtures; a heat-generating component that is installed on the vehicle front side relative to a front portion of the luggage box and generates heat when the vehicle is driven; a cooling means for cooling the heat-generating component by air; a draft cover that is installed on a vehicle body panel facing the luggage box and communicates with the outside of the vehicle; a duct that communicates the cooling means with the draft cover and is set in a lower portion of the luggage box, At least a portion of the duct is disposed below the equipment storage section of the luggage box.

2. 2. The heat dissipation structure for a luggage compartment of a vehicle according to claim 1, wherein the duct is formed by a notch formed in an outer surface of the luggage box and the vehicle body panel.

3. The heat dissipation structure for a luggage compartment of a vehicle according to claim 1 , wherein the luggage box is made of a foam material.

4. The luggage box has a plurality of equipment storage sections with different bottom depths, 2. The heat dissipation structure in a vehicle luggage compartment as described in claim 1, wherein at least a portion of the duct is arranged in the lower part of one of the plurality of equipment storage sections that has a larger dimension between the bottom and the lower surface of the luggage box.

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