JP2006131135A - Heat exchanging device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To dispense with a slide core of an air guide forming die in a heat exchanging device provided with an air guide for covering a side surface of a heat exchanger. <P>SOLUTION: In this heat exchanging device, the air guide 3 is assembled to the side of a shroud. The air guide 3 has an air guide main body part 31 for covering the side surface of the heat exchanger, an inserting part 32 extending from an end face on a vehicle rear side in the air guide main body part 31 toward the vehicle rear side and inserted into an opening part of the shroud, and a slipping preventing part 33 provided continuously to the inserting part 32 and extending downward. The air guide main body part 31, the inserting part 32 and the slipping prevention part 33 are formed on the same plane. As a result, the air guide 3 can be made to have a structure not to be an undercut in relation to the demolding direction. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vehicle heat exchange device including a shroud and an air guide.

  In general, in a heat exchange device for an automobile, a shroud is disposed in order to efficiently send air to a heat exchanger such as a radiator and increase the cooling efficiency of the heat exchanger. In addition, a heat exchanger whose side surface is covered with an air guide has been proposed (see, for example, Patent Document 1).

  This air guide is fitted to the shroud. Specifically, as shown in FIGS. 18 and 19, the shroud 2 is formed with guide protrusions 2a in the vertical direction along the side portions of the shroud 2, and the guide protrusions 2a are spaced at predetermined intervals in the vertical direction. The engaging protrusion 2b is formed. And the protrusion part 2c is formed in the upper part of the engagement protrusion 2b toward both sides, and the fitting part 2d is formed of this protrusion part 2c.

  On the other hand, on the shroud 2 side of the air guide 3, engagement portions 3a that are slidably engaged with guide protrusions 2a formed on the shroud 2 are formed at predetermined intervals in the vertical direction. The engaging portion 3a is formed by arranging a pair of L-shaped locking projections 3b opposite to each other, and a guide projection 2a formed on the shroud 2 can be fitted between the distal end portions 3c of the locking projection 3b. It is said that.

In another example of the fitting structure of the air guide 3 and the shroud 2, as shown in FIG. 20, the air guide 3 is formed with a guide projection 3d, and the shroud 2 is engaged with the guide projection 3d. An engaging portion 2e is formed.
JP 7-332089 A

  However, in the conventional heat exchange apparatus shown in FIGS. 18 and 19, the space in the locking projection 3 b (the portion in which the guide projection 2 a is fitted) in the air guide 3 with respect to the die release direction “a” of the air guide 3. Because of the undercut, the air guide mold requires a slide core.

  In the conventional heat exchanging device shown in FIG. 20, the groove-like space of the guide projection 3d (the portion in which the engaging portion 2e is fitted) in the air guide 3 with respect to the die release direction A of the air guide 3. On the other hand, since the space in the engagement portion 2e in the shroud 2 (the portion in which the guide projection 3d is fitted) becomes an undercut with respect to the die cutting direction B of the shroud 2, the air guide mold and Any shroud mold requires a slide core.

  The present invention has been made in view of the above points, and an object of the present invention is to eliminate the need for a slide core of an air guide mold in a heat exchange device including an air guide.

  In order to achieve the above object, according to the first aspect of the present invention, a heat exchanger (1) that heat-exchanges the heat medium and outside air to cool the heat medium, and a vehicle rear side of the heat exchanger (1). A blower arranged to generate an air flow, a shroud (2) for covering the outer peripheral side of the blower and guiding the air flow so that the air flow generated by the blower passes through the heat exchanger (1), and a shroud In the vehicle heat exchange device including the flat side air guide (3) that is assembled to the side of (2) and covers the side of the heat exchanger (1), the shroud (2) is in the vehicle front-rear direction. The side air guide (3) has an air guide main body (31) that covers the side surface of the heat exchanger (1), and the vehicle rear side in the air guide main body (31). While extending from the side end face toward the rear of the vehicle, ) Inserted into the insertion portion (32) and a retaining portion (33) provided continuously with the insertion portion (32) and extending downward, the air guide main body portion (31), The part (32) and the retaining part (33) are formed in the same plane.

  According to this, since the air guide main body part, the insertion part, and the retaining part of the side air guide are formed in the same plane, the structure does not cause an undercut in the mold release direction of the side air guide. Therefore, the slide core of the air guide mold can be dispensed with.

  According to a second aspect of the present invention, in the vehicle heat exchange device according to the first aspect, the shroud (2) is a pair of claws extending in parallel from the end surface of the shroud (2) toward the front of the vehicle. It has a part (23), A part of air guide main-body part (31) is inserted between a pair of claw parts (23), It is characterized by the above-mentioned.

  According to this, since the side air guide is held by the pair of claw portions, the side air guide can be prevented from falling down.

  According to a third aspect of the present invention, in the vehicle heat exchange device according to the first or second aspect, the upper air guide (4) is mounted on the upper side of the shroud (2) and covers the upper surface of the heat exchanger (1). ), And both ends of the upper air guide (4) are locked to the side air guide (3).

  According to this, it is possible to regulate the upward escape of the side air guide.

  In addition, the code | symbol in the bracket | parenthesis of each said means shows the correspondence with the specific means as described in embodiment mentioned later.

(First embodiment)
A first embodiment of the present invention will be described. 1 is a perspective view of the heat exchange device according to the first embodiment, FIG. 2 is a front view of the shroud in the heat exchange device of FIG. 1 as viewed from the front of the vehicle, FIG. 3 is a right side view of FIG. 2 is an enlarged view of part A in FIG. 2, FIG. 5 is an enlarged view of part B in FIG. 2, FIG. 6 is a view taken in the direction of arrow C in FIG. FIG. 8 is a right side view of FIG. 7, FIG. 9 is an enlarged view of a portion D in FIG. 8, and FIG. 10 is an enlarged view of an E portion in FIG.

  As shown in FIG. 1, the heat exchanging device includes a radiator 1 that cools cooling water by exchanging heat between cooling water for cooling an internal combustion engine (not shown) of the vehicle and outside air, and a vehicle rear side of the radiator 1. Of the shroud 2 and shroud 2 that are arranged on the outer periphery of the blower (not shown) and that cover the outer peripheral side of the blower and guide the air flow so that the air flow generated by the blower passes through the radiator 1. A flat plate side air guide 3 that covers the side surface of the radiator 1 that is assembled to the side and prevents the airflow from passing through the side of the radiator 1, and is assembled to the upper side of the shroud 2. An upper air guide 4 covering the upper surface is provided. The cooling water corresponds to the heat medium of the present invention, and the radiator 1 corresponds to the heat exchanger of the present invention.

  The shroud 2 is resin-molded by a molding die. As shown in FIGS. 2 and 3, a stay 21 for holding an electric motor (not shown) of a blower, an opening 22 (details will be described later), and a pawl 23 ( Etc. are described in detail.

  Two openings 22 are formed on the left and right sides of the shroud 2 so as to be shifted in the vertical direction, and penetrate the vehicle in the longitudinal direction of the vehicle, that is, in the die cutting direction F of the shroud 2. As shown in FIG. 4, the opening 22 has a shape in which two slits having different dimensions in the vehicle width direction are combined. The width of the upper guide portion 221 is larger than the width of the lower groove portion 222. It is getting wider.

  As shown in FIGS. 2 and 3, the claw portions 23 are formed at three positions on the left and right sides of the shroud 2 so as to be shifted in the vertical direction. Further, as shown in FIGS. 5 and 6, two claw portions 23 are formed at one place, and the pair of claw portions 23 are parallel to the vehicle front side end surface of the shroud 2 from the vehicle front side. It extends to.

  The side air guide 3 is resin-molded by a molding die, and as shown in FIGS. 7 and 8, an air guide main body 31 that covers the side surface of the radiator 1, and an end surface on the vehicle rear side in the air guide main body 31. The insertion portion 32 extending from the vehicle rearward toward the vehicle rear side, the insertion portion 32 and the retaining portion 33 etc. extending downward are integrally formed.

  The air guide main body 31, the insertion part 32, and the retaining part 33 are formed in the same plane. In other words, the air guide main body 31, the insertion portion 32, and the retaining portion 33 are in a positional relationship such that they do not overlap when the side air guide 3 is viewed from the mold release direction G of the side air guide 3. .

  Then, after inserting the insertion portion 32 and the retaining portion 33 of the side air guide 3 into the opening 22 of the shroud 2, the side of the insertion portion 32 reaches the position where the lower end surface 321 contacts the lower end surface 223 of the opening 22. By sliding the air guide 3 downward, the retaining portion 33 is engaged with the shroud 2 and the side air guide 3 is fixed to the shroud 2.

  At the same time, by inserting a part of the air guide main body 31 between the pair of claws 23, the side air guide 3 is held by the pair of claws 23 so that the side air guide 3 is prevented from falling. It has become.

  Here, in order to make it easy to insert the insertion portion 32 and the retaining portion 33 into the opening portion 22 of the shroud 2, the width W1 of the guide portion 221 in the opening portion 22 is the thickness t1 of the insertion portion 32 and the retaining portion 33. The length L1 of the guide portion 221 in the vertical direction is longer than the length L2 of the insertion portion 32 and the retaining portion 33 in the vertical direction.

  Then, after the side air guide 3 is mounted on the shroud 2, the upper side air guide 4 is mounted on the shroud 2. Incidentally, the upper air guide 4 and the shroud 2 are held by resin clips (not shown) which are separate parts.

  Further, in a state where the upper air guide 4 is mounted on the shroud 2, as shown in FIG. 10, the end of the upper air guide 4 in the vehicle width direction is placed on the side air guide 3, The side air guide 3 is prevented from falling upward.

  In the above-described embodiment, the air guide main body 31, the insertion portion 32, and the retaining portion 33 are formed in the same plane, so that an undercut is not generated with respect to the die cutting direction G of the side air guide 3. Therefore, the slide core of the mold for forming the side air guide 3 can be eliminated.

  Further, since the side air guide 3 is held by the pair of claws 23, the side air guide 3 can be prevented from falling.

  Further, since the upper air guide 4 is on the side air guide 3, it is possible to prevent the side air guide 3 from falling upward.

(Second Embodiment)
A second embodiment of the present invention will be described. FIG. 11 is a perspective view of the main part of the heat exchange device according to the second embodiment, and FIG. 12 is an exploded perspective view of the main part of the side air guide and the upper air guide in the heat exchange device of FIG.

  In the first embodiment, the end of the upper air guide 4 in the vehicle width direction is only on the side air guide 3, but in the present embodiment, the side air guide 3 and the upper air guide 4 are connected to each other. It is intended to be combined.

  As shown in FIG. 12, the side air guide 3 is provided with a protrusion 34 at the upper end of the air guide main body 31, and a groove 35 is formed between the air guide main body 31 and the protrusion 34. Yes. Similarly, a protrusion 44 and a groove 45 are formed at the end of the upper air guide 4 in the vehicle width direction. Then, as shown in FIG. 11, the groove 35 of the side air guide 3 and the groove 45 of the upper side air guide 4 are fitted, and the side air guide 3 and the upper side air guide 4 are coupled.

  In the present embodiment, since the side air guide 3 and the upper side air guide 4 are coupled, it is possible to prevent the side air guide 3 and the upper side air guide 4 from colliding with each other due to vehicle vibration or the like to generate abnormal noise. The side air guide 3 can be prevented from coming out upward.

(Third embodiment)
A third embodiment of the present invention will be described. 13 is a side view of the main part of the side air guide in the heat exchange apparatus according to the third embodiment, FIG. 14 is a perspective view of the main part of the upper side air guide in the heat exchange apparatus according to the third embodiment, and FIG. It is a front view which shows the connection part of the upper side air guide and side air guide in the heat exchange apparatus which concerns on 3rd Embodiment.

  In the present embodiment, as in the second embodiment, the side air guide 3 and the upper side air guide 4 are coupled.

  As shown in FIG. 13, a rectangular hole 36 is formed in the side air guide 3 in the vicinity of the upper end portion of the air guide main body 31. The hole 36 penetrates the side air guide 3 in the mold release direction G.

  As shown in FIG. 14, a pawl 46 that can be inserted into the hole 36 of the side air guide 3 protrudes from the end of the upper side air guide 4 in the vehicle width direction.

  Then, as shown in FIG. 15, the side air guide 3 and the upper side air guide 4 are joined by fitting the pawl 46 of the upper side air guide 4 into the hole 36 of the side air guide 3.

  In the present embodiment, since the side air guide 3 and the upper side air guide 4 are coupled, it is possible to prevent the side air guide 3 and the upper side air guide 4 from colliding with each other due to vehicle vibration or the like to generate abnormal noise. The side air guide 3 can be prevented from coming out upward.

(Fourth embodiment)
A fourth embodiment of the present invention will be described. 16A is a front view of the main part of the shroud in the heat exchange apparatus according to the fourth embodiment, FIG. 16B is a left side view of FIG. 16A, and FIG. 17 is the heat according to the fourth embodiment. It is a front view which shows the assembly | attachment part of the shroud and the side air guide in an exchange apparatus.

  In each of the above embodiments, the upper air guide 4 prevents the side air guide 3 from being pulled upward. However, in the present embodiment, the side air guide 3 is also used in a heat exchange apparatus that does not include the upper air guide 4. It is designed to prevent from falling out.

  As shown in FIG. 16, the left and right sides of the shroud 2 are formed with protrusions 24 extending from the front surface of the shroud 2 toward the front of the vehicle.

  As shown in FIG. 17, the side air guide 3 is formed with a concave portion 37 that can be engaged with the projection 24 of the shroud 2 by bending a part of the air guide main body portion 31.

  Since the side air guide 3 is a resin thin plate and can be easily elastically deformed, when the side air guide 3 is mounted on the shroud 2, the vicinity of the concave portion 37 is elastically deformed, and the projection 24 of the shroud 2 and the side The concave portion 37 of the side air guide 3 is engaged.

  In this embodiment, since the protrusion 24 of the shroud 2 and the concave portion 37 of the side air guide 3 are engaged, it is possible to prevent the side air guide 3 from being pulled upward.

1 is a perspective view of a heat exchange device according to a first embodiment of the present invention. It is a front view of the state which looked at the shroud in the heat exchange apparatus of FIG. 1 from the vehicle front. FIG. 3 is a right side view of FIG. 2. It is an enlarged view of the A section of FIG. It is an enlarged view of the B section of FIG. It is C arrow line view of FIG. It is a front view of the state which looked at the side air guide in the heat exchange apparatus of FIG. 1 from the vehicle front. FIG. 8 is a right side view of FIG. 7. It is an enlarged view of the D section of FIG. It is an enlarged view of the E section of FIG. It is a perspective view of the principal part of the heat exchange apparatus which concerns on 2nd Embodiment of this invention. It is a disassembled perspective view of the principal part of the side air guide and upper side air guide in the heat exchange apparatus of FIG. It is a side view of the principal part of the side air guide in the heat exchange apparatus which concerns on 3rd Embodiment of this invention. It is a perspective view of the principal part of the upper side air guide in the heat exchange apparatus which concerns on 3rd Embodiment of this invention. It is a front view which shows the connection part of the upper side air guide and side air guide in the heat exchange apparatus which concerns on 3rd Embodiment of this invention. (A) is a front view of the principal part of the shroud in the heat exchange apparatus which concerns on 4th Embodiment of this invention, (b) is a left view of (a). It is a front view which shows the assembly | attachment part of the shroud and the side air guide in the heat exchange apparatus which concerns on 4th Embodiment of this invention. It is a disassembled perspective view which shows the principal part of the conventional heat exchange apparatus. It is sectional drawing which shows the fitting part of the air guide and shroud in the heat exchange apparatus of FIG. It is sectional drawing which shows the fitting part of the air guide and shroud of another prior art example.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Heat exchanger, 2 ... Shroud, 3 ... Side air guide, 22 ... Opening part, 31 ... Air guide main-body part, 32 ... Insertion part, 33 ... Detachment part.

Claims (3)

A heat exchanger (1) for exchanging heat between the heat medium and outside air to cool the heat medium;
A blower arranged on the vehicle rear side of the heat exchanger (1) to generate an air flow;
A shroud (2) that covers the outer periphery of the blower and guides the airflow so that the airflow generated by the blower passes through the heat exchanger (1);
In the vehicle heat exchange device, comprising a flat side air guide (3) that is assembled to the side of the shroud (2) and covers the side of the heat exchanger (1).
The shroud (2) has an opening (22) penetrating in the vehicle longitudinal direction,
The side air guide (3) includes an air guide main body (31) that covers a side surface of the heat exchanger (1), and an end surface of the air guide main body (31) on the vehicle rear side toward the rear of the vehicle. And has an insertion portion (32) inserted into the opening (22) and a retaining portion (33) provided continuously with the insertion portion (32) and extending downward, The vehicle heat exchange device, wherein the air guide body (31), the insertion part (32), and the retaining part (33) are formed in the same plane. The shroud (2) has a pair of claw portions (23) extending in parallel from the end surface on the vehicle front side of the shroud (2) toward the front of the vehicle, and the air is interposed between the pair of claw portions (23). The vehicle heat exchange device according to claim 1, wherein a part of the guide body (31) is inserted. The upper air guide (4) is provided on the upper side of the shroud (2) and covers the upper surface of the heat exchanger (1). Both ends of the upper air guide (4) are arranged on the side air guide (3). The vehicle heat exchange device according to claim 1, wherein the vehicle heat exchange device is locked to the vehicle.

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