JP2018079829A - Vehicular cooler structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicular cooler structure capable of suppressing a cooler from deteriorating in cooling performance in the case of a vehicle traveling in tandem with and tracking a preceding vehicle.SOLUTION: A cooler structure 30 of a vehicle 1 includes: an engine-disposing space 9 in a vehicle forward part, the space for accommodating an engine 20; and an airflow rectifying member 10 that has an air guide surface 11 and is disposed on a roof 3a of a cab 3. The structure further includes, as a cooler 31, at least one of a radiator 40 for cooling an engine coolant by a thermal exchange with air, an intercooler 50 for cooling an intake air by a thermal exchange with air, and an air-conditioning condenser 60 for condensing an air-conditioning coolant by a thermal exchange with air, on the air guide surface of the airflow rectifying member.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a cooler structure for a vehicle, and more particularly to a cooler structure for a vehicle having an engine arrangement space in a front portion of the vehicle and having an air rectifying member on a roof of a cab.

  Conventionally, a vehicle having an engine arrangement space in a front portion of the vehicle is known. In general, in such a vehicle, a radiator for cooling engine cooling water by heat exchange with air, an intercooler for cooling intake air by heat exchange with air, and air conditioning as a cooler inside the space for engine arrangement An air conditioning condenser or the like for cooling and condensing the refrigerant for cooling by heat exchange with air is disposed.

  Patent Document 1 is given as a prior art document related to the present invention. This patent document 1 discloses a vehicle having an engine arrangement space in a vehicle front portion, and an air rectifying member that rectifies air on the vehicle front side and guides it on the vehicle rear side on the roof of the cab. The present invention is related to the present invention in that the vehicle is disclosed.

JP 58-48589 A

  By the way, when the vehicle having the engine placement space in the front part of the vehicle travels in the form of running behind the preceding vehicle, a cooler (radiator, intercooler, or air conditioner) in the engine placement space is used. It may be difficult to introduce a sufficient amount of air into the engine placement space to cool the condenser. In this case, there is a possibility that the cooling performance of the cooler arranged in the engine arrangement space is lowered.

  The present invention has been made in view of the above, and an object of the present invention is to suppress a decrease in cooling performance of the cooler when the vehicle is traveling in a row traveling behind the preceding vehicle. It is to provide a vehicle cooler structure that can be used.

  In order to achieve the above object, a vehicle cooler structure according to the present invention includes an engine arrangement space for accommodating an engine in a vehicle front portion, and air that rectifies air on the vehicle front side and guides it to the vehicle rear side. A vehicle cooler structure having an air flow straightening member having a guide surface on the roof of a cab, and as a cooler, a radiator that cools engine coolant by heat exchange with air, and an intake air by heat exchange with air The air guide surface of the air rectifying member is provided with at least one of an intercooler that performs cooling and an air conditioning condenser that cools and condenses the air conditioning refrigerant by heat exchange with air.

According to the present invention, as the cooler, at least one of a radiator, an intercooler, and an air conditioning capacitor is provided on the air guide surface of the air rectifying member, so that the vehicle travels behind the preceding vehicle. Even when traveling, sufficient air can be introduced into the cooler disposed on the air guide surface of the air rectifying member. Thereby, it can suppress that the cooling performance of a cooler falls, when the vehicles are running in the form of running behind the preceding vehicle.

FIG. 1A is a schematic side view schematically showing a side surface of the vehicle, and FIG. 1B is a schematic enlarged side view showing the vicinity of an air rectifying member of the vehicle in an enlarged manner. 2A is a schematic front view of the radiator, FIG. 2B is a schematic front view of the intercooler, and FIG. 2C is a schematic front view of the air conditioning capacitor. FIG. 3A and FIG. 3B are schematic views for explaining the details of the arrangement of the radiator, the intercooler, and the air conditioning capacitor. It is a schematic diagram which shows the arrangement | positioning aspect of the cooler of the cooler structure which concerns on the modification of embodiment.

  Hereinafter, a vehicle cooler structure 30 according to an embodiment of the present invention (hereinafter abbreviated as a cooler structure 30) will be described with reference to the drawings. In addition, regarding the drawings, the configuration is schematically illustrated so as to be easily understood, and the ratios of the thickness, width, length, and the like of each member do not necessarily coincide with the ratios of actual products. First, the configuration of the vehicle 1 to which the cooler structure 30 according to the present embodiment is applied will be described, and then the details of the cooler structure 30 will be described.

  FIG. 1A is a schematic side view schematically showing a side surface of the vehicle 1. In FIG. 1A, a part of the internal structure of the vehicle 1 (for example, the engine 20) is also indicated by a dotted line. FIG. 1B is a schematic enlarged side view showing the vicinity of an air rectifying member 10 described later of the vehicle 1 in an enlarged manner. In addition, in FIG.1 (b), illustration of the intercooler 50 mentioned later is abbreviate | omitted. Further, among the XYZ orthogonal coordinates illustrated in FIGS. 1A and 1B, the X direction is the rear of the vehicle 1, the −X direction is the front of the vehicle 1, and Z The direction is upward (the direction opposite to gravity), and the −Z direction is downward (the direction of gravity).

  As shown in FIGS. 1 (a) and 1 (b), the vehicle 1 according to this embodiment is a commercial vehicle. Specifically, the frame 2, the cab 3 supported by the frame 2, and the luggage compartment portion. 4 and a front wheel 5 and a rear wheel 6. The cab 3 is disposed in the front portion of the vehicle 1. The cargo compartment portion 4 has a space portion 7 between itself and the cab 3 and is disposed on the vehicle rear side of the cab 3. In addition, although the specific shape of the luggage compartment part 4 is not specifically limited, In this embodiment, it has a box shape. Further, the position (the ground height) of the roof 4 a (ceiling part) of the cargo compartment part 4 is higher than the position of the roof 3 a (ceiling part) of the cab 3.

  The cab 3 is provided with a passenger compartment (not shown), and a side glass 8 is provided on a side surface of the passenger compartment. The vehicle 1 has an engine arrangement space 9 in which the engine 20 is accommodated in the front portion of the vehicle. Specifically, the engine placement space 9 according to the present embodiment is formed on the lower side of the passenger compartment of the cab 3 (specifically, on the lower side of the bottom of the passenger compartment). Although the specific kind of engine 20 is not specifically limited, In this embodiment, the diesel engine which uses light oil as a fuel is used as an example.

  Further, a front grill (not shown) is provided on the front surface of the cab 3, and an air inflow opening (not shown) is provided on the front grill. Specifically, the air inflow opening is provided on the front surface of the engine placement space 9. Air (outside air) flows into the engine arrangement space 9 from the air inflow opening.

  The vehicle 1 includes an air rectifying member 10 (that is, an air deflector) on the roof 3 a of the cab 3. The air rectifying member 10 has an air guide surface 11 that rectifies air on the vehicle front side and guides it to the vehicle rear side. Specifically, the air guide surface 11 of the air rectifying member 10 is configured by a surface portion facing the outside (upper side in the drawing) of the air rectifying member 10 and the height increases toward the vehicle rear side. Has a raised shape. By providing such an air rectifying member 10, the air on the front side of the vehicle 1 is rectified by flowing along the air guide surface 11 of the air rectifying member 10, and a portion of the roof 4 a of the cargo compartment portion 4. It can flow smoothly. Thereby, reduction of air resistance at the time of travel of vehicles 1 is aimed at.

  The vehicle 1 includes at least one of a radiator 40, an intercooler 50 (see FIG. 1A), and an air conditioning capacitor 60 (see FIG. 1B) as the cooler 31. As an example of this, the vehicle 1 according to the present embodiment includes all of the radiator 40, the intercooler 50, and the air conditioning capacitor 60 as the cooler 31. Further, the radiator 40, the intercooler 50, and the air conditioning capacitor 60 are disposed on the air guide surface 11 of the air rectifying member 10. The details of the arrangement of the cooler 31 will be described later.

  FIG. 2A is a schematic front view of the radiator 40. The radiator 40 is an engine coolant cooler that cools engine coolant by heat exchange with air. Although the specific structure of such a radiator 40 is not specifically limited, the radiator 40 which concerns on this embodiment has the cooling water inlet part 41, the cooling water outlet part 42, and the thermal radiation part 43 as an example. Have. The heat dissipating part 43 is provided with a plurality of fins. The engine cooling water after cooling the engine 20 passes through the cooling water inlet 41, the heat radiating part 43, and the cooling water outlet 42 in order. The engine cooling water is cooled by heat exchange with air while passing through the heat radiating portion 43. The engine cooling water discharged from the cooling water outlet portion 42 flows into the engine 20 again and is used for cooling the engine 20.

  In the present embodiment, as an example, the cooling water inlet portion 41 is disposed on the X direction side of the heat radiating portion 43 and the cooling water outlet portion 42 is disposed on the −X direction side of the heat radiating portion 43. The arrangement | positioning aspect of the water inlet part 41 and the cooling water outlet part 42 is not limited to this. As another example, the cooling water outlet portion 42 may be disposed on the X direction side of the heat radiating portion 43 and the cooling water inlet portion 41 may be disposed on the −X direction side of the heat radiating portion 43. The cooling water inlet portion 41 and the cooling water outlet portion 42 may be arranged on the Y direction side or the −Y direction side of the heat radiating portion 43, respectively.

  FIG. 2B is a schematic front view of the intercooler 50. The intercooler 50 is an intake air cooler that cools intake air of the engine 20 by heat exchange with air. As an example of this, the intercooler 50 according to the present embodiment cools the intake air after passing through the compressor of the supercharger (that is, intake air after supercharging) by heat exchange with air. Although the specific configuration of such an intercooler 50 is not particularly limited, the intercooler 50 according to the present embodiment includes, as an example, an intake inlet portion 51, a heat radiating portion 53, and an intake outlet portion 52. Have. The heat radiating portion 53 is provided with a plurality of fins. The intake air passes through the intake inlet 51, the heat radiating portion 53, and the intake outlet 52 in order. The intake air is cooled by heat exchange with air while passing through the heat radiating portion 53. The intake air discharged from the intake outlet 52 is sucked into the engine 20.

  When the heat radiating portion 53 of the intercooler 50 is viewed from the front, the intake inlet portion 51 according to this embodiment is disposed on the Y direction side of the heat radiating portion 53, and the intake outlet portion 52 is the −Y direction of the heat radiating portion 53. Arranged on the side. However, the arrangement of the intake inlet 51 and the intake outlet 52 is not limited to this. As another example, for example, the intake inlet portion 51 may be disposed on the −Y direction side of the heat radiating portion 53, and the intake outlet portion 52 may be disposed on the Y direction side of the heat radiating portion 53. 51 and the intake outlet 52 may be arranged on the X direction or −X direction side of the heat radiating part 53, respectively.

  FIG. 2C is a schematic front view of the air conditioning capacitor 60. The air conditioning condenser 60 is a condenser (condenser) that cools and condenses the air conditioning refrigerant of the vehicle 1 by heat exchange with air. The specific configuration of such an air conditioning capacitor 60 is not particularly limited, but the air conditioning capacitor 60 according to the present embodiment includes, as an example, a refrigerant inlet portion 61, a refrigerant outlet portion 62, and a heat radiating portion. 63. The heat radiating portion 63 is provided with a plurality of fins. The air conditioning refrigerant after cooling the passenger compartment by absorbing the heat of the passenger compartment passes through the refrigerant inlet 61, the heat radiating portion 63, and the refrigerant outlet 62 in order. The air-conditioning refrigerant is cooled and condensed by heat exchange with air while passing through the heat radiating unit 63. The air-conditioning refrigerant discharged from the refrigerant outlet 62 is again used for cooling the passenger compartment.

  In addition, when the heat radiating part 63 of the air conditioning capacitor 60 is viewed from the front, the refrigerant inlet 61 according to the present embodiment is arranged on the Y direction side of the heat radiating part 63, and the refrigerant outlet 62 is -Y of the heat radiating part 63. It is arranged on the direction side. However, the arrangement | positioning aspect of the refrigerant | coolant inlet part 61 and the refrigerant | coolant outlet part 62 is not limited to this. As another example, for example, the refrigerant inlet portion 61 may be disposed on the −Y direction side of the heat radiating portion 63, and the refrigerant outlet portion 62 may be disposed on the Y direction side of the heat radiating portion 63, or the refrigerant inlet portion. 61 and the refrigerant | coolant exit part 62 may be arrange | positioned at the X direction or -X direction side of the thermal radiation part 63, respectively.

  In the present embodiment, the volume of the radiator 40 is larger than the volume of the intercooler 50, and the volume of the intercooler 50 is larger than the volume of the air conditioning capacitor 60. However, the order of the volume sizes of the radiator 40, the intercooler 50, and the air conditioning capacitor 60 is not limited to this.

  In the drawings of the present application, piping for the radiator 40 such as piping for introducing the engine cooling water into the radiator 40 and piping for introducing the engine cooling water after passing through the radiator 40 into the engine 20 is omitted. Has been. Also, illustration of an intake pipe for introducing intake air into the intercooler 50 and piping for the intercooler 50 such as an intake pipe for introducing intake air after passing through the intercooler 50 into the engine 20 is omitted. Also, illustration of piping for the air conditioning capacitor 60 such as piping for introducing the air conditioning refrigerant into the air conditioning capacitor 60 and piping for passing the air conditioning refrigerant after passing through the air conditioning capacitor 60 is omitted. Yes.

  FIG. 3A and FIG. 3B are schematic views for explaining details of an arrangement mode of the radiator 40, the intercooler 50, and the air conditioning capacitor 60. Specifically, FIG. 3A schematically shows a state where the air guide surface 11 of the air rectifying member 10 of FIG. 1A is viewed from above, and FIG. 3B is a radiator 40. The state which looked at the air guide surface 11 of the air rectification member 10 in the state which the intercooler 50 and the air conditioning capacitor | condenser 60 are not arrange | positioned from upper direction is typically shown.

  As described above, the radiator 40, the intercooler 50, and the air conditioning capacitor 60 are disposed on the air guide surface 11 of the air rectifying member 10. Specifically, the air guide surface 11 of the air rectifying member 10 according to the present embodiment is provided with a radiator recess 12, an intercooler recess 13, and an air conditioning condenser recess 14, and the radiator 40 is for the radiator. The intercooler 50 is disposed so as to fit into the recess 12, the intercooler 50 is disposed so as to fit into the intercooler recess 13, and the air conditioning capacitor 60 is disposed so as to fit into the air conditioning capacitor recess 14.

More specifically, the radiator 40, the intercooler 50, and the air conditioning capacitor 60 are:
Each radiator is fitted in the radiator recess 12, the intercooler recess 13, and the air conditioning capacitor recess 14 such that the heat dissipating portions face upward.

  The depths of the recesses in the radiator recess 12, the intercooler recess 13 and the air conditioning capacitor recess 14 are set to be equal to or greater than the thicknesses of the radiator 40, the intercooler 50 and the air conditioning capacitor 60, respectively. Thus, the radiator 40, the intercooler 50, and the air conditioning capacitor 60 do not protrude outward from the air guide surface 11 of the air rectifying member 10, and the radiator recess 12, the intercooler recess 13, and the air conditioning capacitor It fits into the recess 14 for use.

  In the present embodiment, the radiator 40 is disposed on the vehicle rear side of the intercooler 50, and the air conditioning capacitor 60 is disposed on the lateral side (Y direction side) of the intercooler 50. However, the arrangement location of the air conditioning capacitor 60 is not limited to this. For example, the air conditioning capacitor 60 may be arranged not on the side of the intercooler 50 but on the side of the radiator 40.

  In addition, the arrangement | positioning aspect of the radiator 40, the intercooler 50, and the air conditioning capacitor | condenser 60 mentioned above is only an illustration of an arrangement | positioning aspect, and the arrangement | positioning aspect of the radiator 40, the intercooler 50, and the air conditioning capacitor | condenser 60 is limited to the content mentioned above. It is not a thing. How to arrange the radiator 40, the intercooler 50, and the air conditioning capacitor 60 on the air guide surface 11 of the air rectifying member 10 takes into account the size of these members, the size of the air guide surface 11, and the like. What is necessary is just to set suitably.

  The operational effects of the present embodiment described above are as follows. First, in the case where the vehicle 1 is traveling in the form of traveling behind the preceding vehicle, it is sufficient for cooling the cooler 31 even when sufficient air is not introduced into the engine placement space 9. An amount of air can flow along the portion of the air guide surface 11 of the air rectifying member 10. Therefore, according to this embodiment, since at least one of the radiator 40, the intercooler 50, and the air conditioning capacitor 60 constituting the cooler 31 is provided on the air guide surface 11 of the air rectifying member 10, the vehicle 1 is preceded. Even when the vehicle is traveling in the form of traveling behind the vehicle, sufficient air can be introduced into the cooler 31 disposed on the air guide surface 11. Thereby, it is possible to suppress the cooling performance of the cooler 31 from being lowered when the vehicle 1 is traveling in a row while traveling behind the preceding vehicle.

  Specifically, according to the present embodiment, since the radiator 40, the intercooler 50, and the air conditioning capacitor 60 are all provided on the air guide surface 11 of the air rectifying member 10, the vehicle 1 travels behind the preceding vehicle. It is possible to effectively suppress the cooling performance of the radiator 40, the intercooler 50, and the air conditioning condenser 60 from being lowered when the platooning is performed.

  By the way, in order to suppress a decrease in cooling performance of the cooler 31 during platooning, the cooler 31 is not disposed on the air guide surface 11 of the air rectifying member 10 as in the present embodiment. A method of arranging the air conditioning capacitor 60 in the engine arrangement space 9 and arranging the radiator 40 in the space portion 7 between the cab 3 and the cargo compartment portion 4 is also conceivable.

In this case, since the radiator 40 having a large volume is arranged outside the engine arrangement space 9, the air flow in the engine arrangement space 9 can be improved, so that the intercooler in the engine arrangement space 9 can be made. 50 and the cooling performance of the air conditioning condenser 60 can be suppressed to some extent. However, in this case, it is necessary to secure a space for disposing the radiator 40 in the space portion 7, and as a result, the volume of the cargo chamber portion 4 may be reduced in order to enlarge the space portion 7.

  On the other hand, according to this embodiment, since the cooler 31 is arranged not on the space portion 7 but on the air guide surface 11 of the air rectifying member 10, it is possible to suppress the volume of the cargo chamber portion 4 from being reduced. However, it can suppress that the cooling performance of the cooler 31 falls.

  Further, according to the present embodiment, the radiator 40 is disposed so as to fit in the radiator recess 12, the intercooler 50 is disposed so as to fit in the intercooler recess 13, and the air conditioning capacitor 60 is disposed in the air conditioning capacitor recess 14. Therefore, the air flow in the air rectifying member 10 can be prevented from being inhibited by the radiator 40, the intercooler 50, and the air conditioning capacitor 60. Thereby, the increase in the air resistance of the vehicle 1 accompanying the radiator 40, the intercooler 50, and the air-conditioning capacitor 60 being disposed on the air guide surface 11 can be suppressed.

(Modification of the embodiment)
In the above-described embodiment, the radiator 40, the intercooler 50, and the air conditioning capacitor 60 are arranged so as to fit into the recesses provided in the air guide surface 11, but are not limited to this arrangement mode. . Drawing 4 is a mimetic diagram showing the arrangement mode of cooler 31a of cooler structure 30a concerning the modification of an embodiment. As illustrated in FIG. 4, the radiator 40, the intercooler 50, and the air conditioning capacitor 60 may be disposed on the air guide surface 11 in an upright state. Specifically, as illustrated in FIG. 4, the radiator 40, the intercooler 50, and the air-conditioning capacitor 60 are configured by a smooth surface (that is, a flat surface) in which no recess is formed. It is arranged in an upright state.

  Even in such an arrangement mode, it is effective that the cooling performance of the radiator 40, the intercooler 50, and the air-conditioning condenser 60 is lowered when the vehicle 1 is traveling in the form of traveling behind the preceding vehicle. Can be suppressed.

  Although the preferred embodiments of the present invention have been described above, the present invention is not limited to such specific embodiments, and various modifications and changes can be made within the scope of the gist of the present invention described in the claims. Is possible.

1 Vehicle 3 Cab 3a Roof (cab roof)
4 Cargo compartment 4a Roof (cargo compartment roof)
DESCRIPTION OF SYMBOLS 9 Engine arrangement space 10 Air rectifying member 11 Air guide surface 12 Radiator recess 13 Intercooler recess 14 Air conditioning condenser recess 20 Engine 30, 30a Vehicle cooler structure 31, 31a Cooler 40 Radiator 50 Intercooler 60 Air conditioning Capacitors

Claims (2)

A cooler for a vehicle having an air rectifying member on the roof of the cab that has an air guide surface that rectifies air on the front side of the vehicle and guides the air on the front side of the vehicle by providing an engine arrangement space for accommodating the engine in the front portion of the vehicle Structure,
As a cooler, a radiator that cools engine coolant by heat exchange with air, an intercooler that cools intake air by heat exchange with air, and an air conditioning condenser that cools and condenses air conditioning refrigerant by heat exchange with air At least one of the above is provided on the air guide surface of the air rectifying member.   The member provided in the air guide surface of the air rectifying member among the radiator, the intercooler, and the air conditioning capacitor is disposed so as to be fitted into a recess provided in the air guide surface. The vehicle cooler structure according to claim 1.

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