JP2006027319A - Heat shield plate mounting structure in vehicular heat exchanger - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat shield plate mounting structure in a vehicular heat exchanger allowing easy and rapid mounting of a heat shield plate in a groping manner with a small working space without requiring any separate fastening part, and enhancing the working efficiency and reducing the cost. <P>SOLUTION: This heat shield plate 2 is formed of an elastic material such as rubber, a flange part 5 is folded forward of a vehicle on an upper edge of a radiator core floor 12. A locking groove 8 opened backward of the vehicle is formed in a lower edge of the heat shield plate 2. In the locking groove 8, a lower inner wall surface 82 is formed longer backward of the vehicle than an upper inner wall surface 81. A tapered portion 83 is formed in an opening edge of the lower inner wall surface 82 in the locking groove 8, and a lower edge of the heat shield plate 2 is mounted by attaching and locking the locking groove 8 to the flange part 5. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a heat shield plate mounting structure in a vehicle heat exchanger, and more particularly to a lower edge portion mounting structure of a heat shield plate.

  Conventionally, the hot air in the engine room has flown to the front of the heat exchanger when idling. Therefore, several types of heat shields are set on the outer periphery of the heat exchanger and attached to the radiator core support etc. Therefore, heat insulation was performed (for example, refer to Patent Document 1).

JP 2001-253230 A (specification (3) page, FIG. 1)

However, conventionally, since the heat shield plate as described above has been attached to a radiator core support or the like with clips, bolts, or the like, there have been the following problems.
In other words, since fastening parts such as clips and bolts are required in addition to the heat shield, the cost increases due to the increase in the number of parts, and a predetermined work space is required for fastening with clips and bolts. Therefore, there is a problem that it is difficult to deal with a place where it is difficult to secure this work space.

Moreover, when the flange part is bend | folded and formed in the heat shield board attachment part in a radiator core support, attachment with a clip or a bolt is difficult.
In particular, the lower end edge of the heat shield plate is mounted in a groping state, so mounting with clips or bolts is a difficult task.

  The problem to be solved by the present invention is that the installation of the heat shield plate can be easily and quickly performed in a groping state if there is a small work space without requiring a separate fastening part. Another object of the present invention is to provide a mounting structure for a heat shield plate in a vehicle heat exchanger capable of improving work efficiency and reducing costs.

  In order to solve the above-described problem, the heat shield plate mounting structure in the vehicle heat exchanger according to claim 1 closes the space between the radiator core upper side and the radiator core lower outside the left and right radiator core sides of the radiator core support. A heat shield plate mounting structure in a vehicle heat exchanger mounted in a state, wherein the heat shield plate is made of an elastic material such as rubber, and a flange portion is provided at a front end of the radiator core lower at the front of the vehicle. A locking groove is formed at the lower edge of the heat shield so as to open toward the rear of the vehicle, and the locking groove has an inner wall on the lower side of the inner wall on the upper side. The lower end edge portion of the heat shield plate is attached by attaching and locking the locking groove to the flange portion.

  The mounting structure of the heat shield plate in the vehicle heat exchanger according to claim 2 is the mounting structure of the heat shield plate in the vehicle heat exchanger according to claim 1, wherein the lower inner wall surface of the locking groove is provided. A taper portion is formed at the opening edge portion.

  The mounting structure of the heat shield plate in the vehicle heat exchanger according to claim 3 is the mounting structure of the heat shield plate in the vehicle heat exchanger according to claim 1 or 2, wherein the locking groove is vertically arranged in two stages. The feature is that it is formed.

  In the heat shield plate mounting structure in the vehicle heat exchanger according to claim 1, as described above, the heat shield plate is made of an elastic material such as rubber, and a flange portion is provided on the upper end edge of the radiator core lower. The heat shield plate is bent forward and has a locking groove that opens toward the rear of the vehicle at the lower edge of the heat shield plate, and the heat shield plate is fitted and locked to the flange portion. Since the lower end edge of the frame is attached, it can be attached by a simple operation of attaching and locking the locking groove to the flange, so if there is a little work space, the heat shield plate Can be easily and quickly attached, thereby improving work efficiency.

Further, the locking groove is formed such that the lower inner wall surface of the locking groove is longer toward the rear of the vehicle, so that the locking groove can be easily aligned with the flange portion.
Moreover, since separate fastening parts such as clips and bolts are not required, the cost can be reduced.

  In the mounting structure of the heat shield plate in the vehicle heat exchanger according to claim 2, the taper portion is formed at the opening edge portion of the lower inner wall surface of the locking groove, so that the flange portion is It becomes possible to easily attach the locking groove.

  In the mounting structure of the heat shield plate in the vehicle heat exchanger according to claim 3, since the locking groove is formed in two upper and lower stages, one type of heat shield plate has different specifications. It can be shared with different types of radiator core support, thereby reducing costs.

  Embodiments of the present invention will be described below with reference to the drawings.

The mounting structure of the heat shield plate in the vehicle heat exchanger of the first embodiment corresponds to the invention described in claims 1 and 2.
First, a heat shield mounting structure in the vehicle heat exchanger of the first embodiment will be described with reference to the drawings.

FIG. 1 is a perspective view from the front of the vehicle showing the radiator core support before the heat shield plate is attached, FIG. 2 is a perspective view from the rear of the vehicle showing the main part of the radiator core support before the heat shield plate is attached, and FIG. 4 is a perspective view from the vehicle rear side showing the heat shield plate, and FIG. 5 is a view from the front of the vehicle showing the main part of the heat shield plate mounting structure in the vehicle heat exchanger of the first embodiment. FIG. 6 is a perspective view from the rear of the vehicle showing the main part of the heat shield plate mounting structure, FIG. 7 is an enlarged perspective view of the main part from the rear of the vehicle showing the heat shield plate mounting structure, and FIG. FIG. 9 is an enlarged cross-sectional view taken along line AA in FIG. 7, FIG. 9 is a perspective view showing a mounting method in the heat shield plate mounting structure, and FIG. 10 is a cross-sectional view showing the heat shield plate mounting step.
The mounting structure of the heat shield plate in the vehicle heat exchanger includes a radiator core support 1 and a heat shield plate 2 as main components.

  More specifically, as shown in FIG. 1, the radiator core support 1 includes a radiator core upper 11 extending in the vehicle width direction, a radiator core lower 12 arranged in parallel with the radiator core upper 11, and the radiator core upper 11. And a hood lock stay 13 that connects the substantially central portion of the radiator core 12 in the vertical direction, and radiator core sides 14 and 14 that connect both sides of the radiator core upper 11 and the radiator core lower 12 in the vertical direction; The radiator core upper side 11 and the radiator core upper side parts 15, 15 extending from the both ends of the radiator core 11 toward the vehicle rear side are mainly formed of metal.

And the flange parts 3 and 4 for attaching the said heat-insulating board 2 are each provided in the lower surface side of the said left and right radiator core upper sides 15 and 15, and the outer side of both the left and right radiator core sides 14 and 14.
Further, as shown in FIGS. 2, 8, and 9, a flange portion 5 bent toward the front of the vehicle is formed at the upper end edge of the radiator core lower 12.

As shown in FIGS. 3 and 4, the heat shield plate 2 is made of an elastic material such as rubber, and both the left and right radiator core upper sides 15 and 15 and the radiator core lower 12 and the outside of the left and right radiator core sides 14 and 14. Are formed in a thin plate shape having a width that can be closed between them, and are provided at one position on the upper edge portion facing the flange portion 3 and two positions on the inner edge portion facing the flange portion 4 respectively. 6 is integrally formed.
As shown in FIGS. 1 and 2, the flange portions 3 and 4 corresponding to the positions of the engagement protrusions 6 are formed with engagement holes 7 for engaging the engagement protrusions 6.

  As shown in the detailed enlarged cross-sectional view of FIG. 8, each of the engaging protrusions 6 is formed from the base side to a small-diameter shaft portion 6a having an outer diameter substantially the same as the inner diameter of the engaging hole 7 and the distal end side of the small-diameter shaft portion 6a. A tapered large-diameter engaging portion 6b having an engaging portion k larger in diameter than the inner diameter of the engaging hole 7, and a pulling knob 6c having a diameter smaller than the inner diameter of the engaging hole 7 at the tip of the large-diameter engaging portion 6b. And the shaft center portion of the small diameter shaft portion 6a and the large diameter engagement portion 6b opens to a surface opposite to the protruding direction of the engagement protrusion 6 in the heat shield plate 2. A hollow portion 6d is formed.

  Further, as shown in FIGS. 3, 4, 9, and 10, the heat shield plate 2 has a flange portion 5 that is bent toward the front of the vehicle at the upper end edge of the radiator core lower 12. A locking groove 8 that can be mounted and locked is formed.

  The locking groove 8 is formed by a gap formed between the two protrusions 8 a and 8 b that are integrally formed on the rear surface of the lower end edge of the heat shield plate 2. And since the lower protrusion 8b is formed higher than the upper protrusion 8a, the inner wall 82 below the upper inner wall surface 81 in the locking groove 8 is formed longer toward the rear of the vehicle, and A taper portion 83 is formed at the opening edge of the lower inner wall surface of the locking groove 8.

  Also, three ribs 21 connected upward at the same height as the front end surface of the upper ridge 8a on the rear surface of the heat shield plate 2 above the upper ridge 8a are integrally formed. Is formed.

  Since the first embodiment is configured as described above, when the heat shield plate 2 is attached, first, as shown in FIG. 9, the locking groove 8 formed on the lower edge of the heat shield plate 2 is provided. The lower end edge of the heat shield plate 2 is attached to the radiator core lower 12 by pressing against the flange portion 5 bent toward the front of the vehicle on the upper end edge of the radiator core lower 12 so as to be attached and locked. (See FIGS. 5 and 6).

Further, a procedure for mounting the locking groove 8 to the flange portion 5 will be described based on a cross-sectional view showing the step of FIG.
First, as shown in FIG. 10 (a), the heat shield plate 2 is inserted greatly downward, and then, as shown in FIG. 10 (b), the heat shield plate 2 until the rib 21 abuts against the flange portion 5. When the heat shield plate 2 is slid upward and the lower protrusion 8b comes into contact with the flange portion 5 as shown in FIG. By pressing the lower edge of 2 toward the rear of the vehicle, the locking groove 8 can be attached to the flange portion 5 as shown in FIG.

  Next, in order to attach the upper edge and the inner edge of the heat shield plate 2, the pulling knobs 6 c of the engagement protrusions 6 are inserted into the engagement holes 7 from the vehicle front side of the radiator core support 1. By pulling the pulling knob 6c from the opposite side (rear side of the vehicle) and pulling it, the large-diameter engaging part 6b is drawn into the engaging hole 7 and passed therethrough, thereby making it larger than the opening edge of the engaging hole 7. The diameter engaging portion 6b is engaged and the state is prevented from being pulled out, whereby the upper edge portion and the inner edge portion of the heat shield plate 2 are opposed to the radiator core upper side 15 and the radiator core side 14. It will be in the attached state (refer FIG. 5, 6).

Next, operations and effects of the first embodiment will be described.
In the first embodiment, as described above, the heat shield 2 is made of an elastic material such as rubber, and the flange portion 5 is bent toward the front of the vehicle at the upper end edge of the radiator core lower 12. The lower end edge of the heat shield plate 2 is formed with a locking groove 8 that opens toward the rear of the vehicle. Since it is configured to be mounted, it can be mounted by a simple operation of mounting and locking the locking groove 8 to the flange portion 5, so if there is a little work space, the heat shield plate can be mounted. This can be done easily and quickly, and the work efficiency can be improved.

  Further, the locking groove 8 is formed such that an inner wall surface 82 below the upper inner wall surface 81 is longer toward the rear of the vehicle, so that the locking groove 8 can be easily aligned with the flange portion 5. become.

Further, since the tapered portion 83 is formed at the opening edge portion of the lower inner wall surface 82 in the locking groove 8, the locking groove 8 can be easily attached to the flange portion 5. It becomes like this.
Further, in the first embodiment, as described above, the upper end edge portion of the heat shield plate 2 is simply operated by inserting and pulling the engagement protrusion 6 formed integrally with the heat shield plate 2 into the engagement hole 7. Since the inner edge portion can be attached, the heat shield plate 2 can be easily and quickly attached if there is a small work space, thereby improving the work efficiency.

  Further, a hollow portion 6d communicating with the outside air is formed at the shaft center portion of the small-diameter shaft portion 6a and the large-diameter engagement portion 6b in the engagement protrusion 6, so that the large-diameter engagement portion 6b with respect to the engagement hole 7 is formed. It is possible to increase the engagement strength while facilitating the passage of.

In addition, the hollow portion 6d is communicated with the outside air by opening the hollow portion 6d on the surface of the heat shield plate 2 opposite to the protruding direction of the engaging protrusions 6, so that the molding die Accordingly, it is easy to integrally form the engaging protrusion 6 having the hollow portion 6d and the engaging portion k of the large-diameter engaging portion 6d is easily deformed in a shrinking direction. The joint portion 6b can be passed more easily.
Further, since no separate fastening parts are required to attach the heat shield plate 2, the cost can be reduced.

  Next, another embodiment will be described. In the description of the other embodiments, the same components as those of the first embodiment are not shown, or the same reference numerals are given and the description thereof is omitted, and only the differences are described.

  The second embodiment shows a modification of the apparatus in the first embodiment. As shown in the enlarged cross-sectional view of the main part of FIG. 11, the lower end edge of the heat shield plate 2 has a radiator core lower 12. The first embodiment differs from the first embodiment in that locking grooves 8 and 9 that can be mounted and locked to the flange portion 5 that is bent toward the front of the vehicle are formed in two upper and lower stages. Is.

  In the figure, 9a is the upper ridge constituting the engaging groove 9, 9b is the lower ridge, 91 is the upper inner wall surface, 92 is the lower inner wall surface, 93 is the tapered portion, and 22 is the taper portion. It is a rib that connects between the lower ridge 8b constituting the engagement groove 8 and the upper ridge 9a of the engagement groove 9, and the tip surface of the rib 22 is connected to the tip surface of the upper ridge 9a. It is formed in a continuous state at the same height.

  In the second embodiment, since the locking grooves 8 and 9 are formed in two upper and lower stages, one type of heat shield plate 2 can be shared by two types of radiator core supports having different specifications. As a result, an additional effect that the cost can be reduced can be obtained.

Although the present embodiment has been described above, the present invention is not limited to the above-described embodiment, and design changes and the like within a scope not departing from the gist of the present invention are included in the present invention.
For example, in the embodiment, the example in which the entire radiator core support 1 is made of metal is shown, but the present invention can be applied to the case where the front part or part of the radiator core support 1 is made of resin.
Moreover, the attachment structure of the upper edge part and the inner edge part in the heat shield plate 2 is arbitrary.

It is a perspective view from the vehicle front which shows the radiator core support before the heat shield plate in the heat shield plate attachment structure in the vehicle heat exchanger of the first embodiment. It is a perspective view from the vehicle rear which shows the principal part of the radiator core support before heat shield board attachment. It is a side view which shows a heat shield. It is a perspective view from the vehicle rear which shows a heat shield. It is a perspective view from the vehicle front which shows the principal part of the attachment structure of the heat shield in the heat exchanger for vehicles of Example 1. FIG. It is a perspective view from the vehicle rear which shows the principal part of the attachment structure of the heat shield in the heat exchanger for vehicles of Example 1. FIG. It is a principal part expansion perspective view from the vehicle rear which shows the attachment structure of the heat shield in the heat exchanger for vehicles of Example 1. FIG. It is an expanded sectional view in the AA line of FIG. It is a perspective view which shows the attachment method of a heat shield. It is sectional drawing which shows the attachment process of a heat shield. It is a principal part expanded sectional view which shows the attachment structure of the heat shield in the heat exchanger for vehicles of Example 2. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Radiator core support 11 Radiator core upper 12 Radiator core lower 13 Hood lock stay 14 Radiator core side 15 Radiator core upper side 2 Heat shield plate 21 Rib 22 Rib 3 Flange part 4 Flange part 5 Flange part 6 Engaging protrusion 6a Small diameter shaft part 6b Large-diameter engaging portion 6c Retraction knob 6d Hollow portion 7 Engaging hole 8 Locking groove 8a Upper protrusion 8b Lower protrusion 81 Upper inner wall surface 82 Lower inner wall surface 83 Tapered portion 9 Locking Groove 9a Upper ridge 9b Lower ridge 91 Upper inner wall surface 92 Lower inner wall surface 93 Tapered portion k Engaging portion

Claims (3)

A mounting structure of a heat shield plate in a vehicle heat exchanger that is attached in a state of closing between the radiator core upper side and the radiator core lower outside the left and right radiator core sides in the radiator core support,
The heat shield is made of an elastic material such as rubber,
A flange portion is bent toward the front of the vehicle at the upper edge of the radiator core lower,
A locking groove that opens toward the rear of the vehicle is formed at the lower edge of the heat shield,
The locking groove is formed such that the lower inner wall surface is longer than the upper inner wall surface toward the rear of the vehicle,
A heat shield plate mounting structure in a vehicle heat exchanger, wherein the lower end edge of the heat shield plate is attached by mounting and locking the locking groove to the flange portion.   2. The vehicle heat exchanger according to claim 1, wherein a tapered portion is formed at an opening edge of the lower inner wall surface of the locking groove. 3. Mounting structure of heat shield in exchanger.   The heat shield plate mounting structure for a vehicle heat exchanger according to claim 1 or 2, wherein the locking groove is formed in two upper and lower stages. Mounting structure.

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