JP2018103800A - Cooling structure of heat exchanger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that outside air is hardly delivered to a heat exchanger at a reverse side of a bumper reinforcement, and further that a seal member disposed in front of the heat exchanger is heated by hot air of an engine room so that suction air becomes warm.SOLUTION: A cooling structure of a heat exchanger includes: a heat exchanger installed in the vehicle rear part of a bumper reinforcement; seal members extending from a side face of the heat exchanger toward a front part; and air introducing guides provided on the seal members in order to guide outside air to the heat exchanger. In the cooling structure of the heat exchanger, outside air is caused to flow to the center of the heat exchanger beyond the bumper reinforcement. Furthermore, heat is hardly transferred into the seal members although the seal members are heated by hot air, and thereby preventing temperature of suction air from rising.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a cooling structure for a heat exchanger such as a radiator or a condenser of an air conditioner.

  A radiator used for a cooling device for cooling the engine is disposed in a front portion of the automobile. Further, in recent automobiles, an air conditioner for setting the temperature inside the vehicle to a temperature desired by the passenger is always provided. Therefore, the condenser for cooling the refrigerant of the air conditioner is also arranged in the front part of the vehicle body together with the radiator. In general, a radiator is often arranged in front of and behind a capacitor.

  Heat exchangers such as condensers and radiators exhibit a cooling function when exposed to outside air during travel. Therefore, in order to facilitate the introduction of outside air into the heat exchanger, and to prevent recirculation of the hot air that is supplied to the heat exchanger again from the hot air in the parked engine room, a seal directed forward from the heat exchanger A material is formed (for example, Patent Document 1).

  On the other hand, a bumper for collision is disposed at the front end of the vehicle body, and a bumper reinforcement for reinforcing the bumper is disposed. That is, bumper reinforcement is arranged in front of the heat exchanger.

  In such an arrangement, bumper reinforcement prevents the outside air from hitting the entire surface of the heat exchanger. Therefore, it can be said that the cooling efficiency of the heat exchanger decreases due to the presence of bumper reinforcement. In order to solve such a problem, Patent Document 2 proposes an invention in which a louver structure is provided in a front bumper to create a flow of outside air from below the bumper reinforcement toward the heat exchanger.

JP 2001-080371 A JP 2001-018736 A

  If the flow of the external air which goes to a heat exchanger from the lower side of bumper reinforcement is made like patent document 2, the efficiency of heat exchange will become high. However, in the case of a design in which the distance between the front end of the bumper and the bumper reinforcement is long, the depth of the bumper opening in which the louver is arranged becomes deep, so resin molding cannot be performed. Moreover, it is necessary to prepare a louver as a separate part, which leads to an increase in cost.

  The present invention has been conceived in view of the above problems, and provides a cooling structure capable of introducing outside air to the front surface of a heat exchanger regardless of the distance between the front end of the bumper and the bumper reinforcement.

More specifically, the cooling structure of the heat exchanger according to the present invention is:
A heat exchanger located behind the bumper reinforcement body,
A seal member extending forward from the side surface of the heat exchanger;
An air guide that is provided on the seal member and directs outside air to the heat exchanger is arranged.

In the sealing member according to the present invention,
The wind guide is formed by bending a heat insulating material disposed inside the seal member.

  The seal structure according to the present invention can direct outside air to the heat exchanger behind the bumper reinforcement regardless of the distance between the bumper and the bumper reinforcement, thereby improving the heat exchange efficiency.

  In addition, since the wind guide is formed by bending a heat insulating material disposed inside the seal member, even if the hot air in the engine room returns to the front of the vehicle body when the vehicle is stopped and the seal member itself is heated, the heat exchanger Since the previous air is not easily heated, the temperature of the air sucked into the heat exchanger can be prevented from being increased. Further, since the air guide is produced by bending a part of the heat insulating material, the cost can be reduced.

It is a perspective view which shows the cooling structure of the heat exchanger which concerns on this invention. It is a perspective view which shows an upper side heat insulating material. It is a side view of the cooling structure of the heat exchanger. It is a figure which shows the modification of an air guide.

  Hereinafter, a cooling structure for a heat exchanger according to the present invention will be described with reference to the drawings. The following description exemplifies an embodiment of the present invention, and the present invention is not limited to the following description. Accordingly, the following description can be modified without departing from the spirit of the present invention. In this specification, the arrow Fr indicates the front direction of the vehicle body, and the arrow Rr indicates the rear direction of the vehicle body.

  FIG. 1 is a perspective view of a heat exchanger 30 to which a cooling structure 1 according to the present invention is attached. The heat exchanger 30 is provided in parallel with the condenser 32 and the radiator 34 of the air conditioner. A radiator fan 36 is disposed behind the radiator 34. Here, the description will be continued assuming that the capacitor 32 is on the front side of the vehicle body. A bumper reinforcement 40 is disposed in front of the capacitor 32.

  The seal member 12 extends forward from the side surface of the capacitor 32. The seal member 12 may be disposed at least on the side surface of the capacitor 32. Of course, you may arrange | position also on an upper surface and a lower surface.

  The seal member 12 is made of sheet metal or resin. And the opening 12h is provided in the part in which the bumper reinforcement 40 is arrange | positioned, and the bumper reinforcement 40 is arrange | positioned in the form which penetrates the sealing member 12. FIG.

  The bumper reinforcement 40 can have various shapes. Here, a bumper reinforcement 40 having a hat-shaped cross section is shown. Of course, other shapes may be used.

The seal member 12 has a direction facing the capacitor 32 as “inner side 12i” and the opposite side as “outer side 12o”. A heat insulating material 14 is disposed on the inner side 12 i of the seal member 12. As the heat insulating material 14, a material having a certain degree of heat resistance and processability, such as a polypropylene board, can be suitably used. The heat insulating material 14 is divided into two in the middle of the seal member 12. The upper and lower heat insulating materials 14 are referred to as an upper heat insulating material 14u and a lower heat insulating material 14d, respectively. Each of the heat insulating materials 14 is provided with a trapezoidal turn 14a. This turn 14 a becomes the air guide 16.

  FIG. 2 shows only the upper heat insulating material 14u. The heat insulating material 14 will be described as a rectangular plate-shaped member composed of four sides. In the upper heat insulating material 14u, the lower side 14ut, the upper side 14us, the front side 14uf, and the rear side 14ur are shown in the drawing. The turn 14a is formed by two notches at a substantially central portion of the lower side 14ut, separated by a certain width a. The front cut b is longer than the rear cut c. And the wind guide 16 is formed by folding the notch b and the notch c by the folding line d. In order to fix the folded air guide 16, a fixing member may be further added.

  Referring to FIG. 1 again, the lower heat insulating material 14d is formed in the same manner. However, in the lower heat insulating material 14d, the cut c is shorter than the cut b in the front-rear direction with respect to the upper heat insulating material 14u in FIG. Further, the left heat insulating material 14 as viewed from the front of the vehicle body has been described, but the right heat insulating material 14 can be formed in the same manner.

  The effect | action is demonstrated about the cooling structure 1 of the heat exchanger 30 which has the above structure. Please refer to FIG. FIG. 3 is a side view of the heat exchanger 30 in which the cooling structure 1 is arranged. The outside air Win blown into the vehicle body from the grill surface (not shown) in front of the bumper enters the blow-in opening 12int formed by the left and right seal members 12 (see FIG. 1). The intruding outside air Win is changed in the blowing direction toward the center of the heat exchanger 30 by the air guide 16. Therefore, outside air Win is introduced to the front surface of the heat exchanger 30 beyond the bumper reinforcement 40. The heat exchange efficiency of the heat exchanger 30 is also improved.

  Further, since the air guide 16 is formed by folding back the heat insulating material 14 provided on the inner side 12i (see FIG. 1) of the seal member 12, the heat insulation toward the inner side 12i from the outer side 12o of the seal member 12 of the seal member 12 itself. The nature is getting higher. That is, even if hot air generated in the engine room increases the temperature of the seal member 12, the temperature inside the inner side 12i of the seal member 12 does not increase in the same way. Thereby, the problem that the effectiveness of the heat exchanger 30 is deteriorated when the vehicle body is stopped can be suppressed.

  In addition, since the air guide 16 formed by bending the heat insulating material 14 is formed from the heat insulating material 14 disposed on the inner side 12i of the seal member 12, it may be a single member. However, as shown in FIG. 4, the right and left air guides 16 may be connected by a plate-like member 16 p. With the configuration as shown in FIG. 4, since another member is used as the air guide 16, the number of parts increases, but it is not necessary to fix the heat insulating material 14 in a folded state. Further, since the amount of the outside air Win directed toward the center of the heat exchanger 30 increases, the efficiency of heat exchange is further improved.

  However, as shown in FIG. 4, when the plate-like member 16 p that connects the folded portions of the heat insulating material 14 is arranged up and down, the opening area from the front of the heat exchanger 30 is reduced. Therefore, the plate-like member 16p may be arranged so that the front-rear width is shortened or only one of the upper and lower sides.

  As described above, the cooling structure 1 for the heat exchanger 30 according to the present invention can carry outside air over the bumper reinforcement 40 to the center of the heat exchanger 30 by the air guide 16 and increase the efficiency of heat exchange. Can do. Further, since the air guide 16 is composed of the heat insulating material 14, the sealing member 12 is heated by hot air from the engine room when the vehicle is stopped, and the air temperature on the front surface of the heat exchanger 30 is increased by the heat. The problem of falling is also solved. Further, since the air guide is manufactured by bending a part of the heat insulating material 14, the cost can be reduced.

  In addition, since the heat insulating material 14 is divided into upper and lower parts, it can be installed even after the heat exchanger 30 and the seal member 12 are assembled.

  The present invention can be suitably used for a heat exchanger in which a seal member is disposed in front of a vehicle body.

DESCRIPTION OF SYMBOLS 1 Cooling structure 12 Sealing member 12i Inner side 12o Outer side 12h Opening 12int Blowing inlet 14 Heat insulating material 14a Folding 14u Upper heat insulating material 14ut Lower side 14us Upper side 14uf Front side 14ur Rear side 14d Lower side heat insulating material 16 Wind guide 16p Plate-shaped member 30 Heat exchange 32 Capacitor 34 Radiator 36 Radiator Fan 40 Bumper Info Win

Claims (2)

A heat exchanger located behind the bumper reinforcement body,
A seal member extending forward from the side surface of the heat exchanger;
A cooling structure for a heat exchanger, characterized in that an air guide is provided on the seal member and directs outside air to the heat exchanger.   The cooling structure for a heat exchanger according to claim 1, wherein the air guide is formed by bending a heat insulating material disposed inside the seal member.