JP2006160086A - Mounting structure for vehicle heat exchanger - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle heat exchanger mounting structure capable of realizing an efficient utilization of a space by reducing a requisite clearance between the heat exchanger and a vehicle body. <P>SOLUTION: The vehicle heat exchanger mounting structure supports a vehicle mounted pin P1 protruded and arranged at the upper part of a radiator 2 with a pair of arms 4f arranged at an upper bracket 4 of a radiator core support upper 1a and a cap 6 having slits 6a that can be engaged with the arms 4f with an insulator 7, and the arms 4f and the cap 6 support the vehicle mounted pin P1 with the insulator 7 so as to restrict oscillation of the radiator 2 in forward, rearward, rightward and leftward directions while allowing the oscillation of the radiator 2 in upward and downward directions. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a mounting structure for a heat exchanger for a vehicle such as an automobile radiator or a condenser.

Conventionally, the mounting structure of a heat exchanger for a vehicle is configured such that a vehicle mounting pin protruding from the lower part of the heat exchanger is inserted and supported through the insulator in the locking hole of the lower bracket of the radiator core support lower, and the upper part of the heat exchanger is A technique for attaching a heat exchanger to a radiator core support by supporting a vehicle mounting pin projecting on a radiator core support upper bracket and cap via an insulator is known (see Patent Document 1).
In such a vehicle heat exchanger mounting structure, vibrations during idling of an automobile are reduced by swinging the heat exchanger in the vertical direction using an insulator provided on a vehicle mounting pin below the heat exchanger as a spring. Functions as a dynamic damper.
JP 2003-279285 A

  However, in the invention described in Patent Document 1, it is necessary to ensure a large necessary clearance between the heat exchanger and the peripheral members when the upper part of the heat exchanger is swung in the front-rear and left-right directions in the up-down direction. In addition, there is a problem that a stable spring constant cannot be obtained as a dynamic damper.

  The present invention has been made to solve the above-described problems, and the object of the present invention is to prevent the heat exchanger and the vehicle body side from being swung in the front-rear and left-right directions. Another object of the present invention is to provide a mounting structure for a vehicle heat exchanger capable of realizing space efficiency by reducing clearance and obtaining a stable spring constant as a dynamic damper.

  In the first aspect of the present invention, the vehicle mounting pin protruding from the upper portion of the heat exchanger is fixed to the upper bracket provided on the radiator core support upper and the upper bracket so as to be detachable. In the mounting structure of a vehicle heat exchanger that is fixed by a cap via an insulator, the insulator includes a cylindrical first annular portion that is supported in a state where the vehicle mounting pin is penetrated, and a radial direction of the first annular portion. An annular second annular portion disposed on the outside and an annular groove opened upward by a connecting portion that connects these annular portions, and the cap is a cylindrical annular locking portion that projects downward from the cap body. And by fitting the annular locking portion of the cap from above into the annular groove of the insulator, the annular locking portion is allowed to swing in the vertical direction of the heat exchanger at the connecting portion. Characterized by suppressing the oscillation of the longitudinal and lateral direction of the heat exchanger.

  According to the first aspect of the present invention, the insulator includes a cylindrical first annular portion that supports the vehicle mounting pin in a state where the vehicle mounting pin is penetrated, and an annular first annular portion that is disposed radially outside the first annular portion. Two annular portions, and an annular groove opened upward by a connecting portion that connects the two annular portions, and the cap includes a cylindrical annular locking portion that protrudes downward from the cap body, and the annular groove of the insulator By fitting the ring-shaped locking part of the cap from above, it is possible to prevent the heat exchanger from swinging in the vertical direction at the connecting part, while suppressing the rocking of the heat exchanger in the front-rear and left-right directions at the ring-shaped locking part. Therefore, it is possible to reduce the necessary clearance between the heat exchanger and the vehicle body side to realize space efficiency, and to obtain a stable spring constant as a dynamic damper.

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

Example 1 will be described below.
1 is an exploded perspective view showing a mounting structure for a vehicle heat exchanger according to a first embodiment of the present invention, FIG. 2 is an enlarged perspective view of an upper bracket, and FIG. 3 is a mounting state of the bracket in line S3-S3 in FIG. 4 is a top view of the cap, FIG. 5 is a front view thereof, FIG. 6 is a rear view thereof, FIG. 7 is a right side view thereof, FIG. 8 is a left side view thereof, and FIG. is there.
FIG. 10 is a top perspective view of the insulator, FIG. 11 is a bottom perspective view thereof, FIG. 12 is a diagram illustrating fixing of the upper bracket, cap, insulator, and radiator, and FIG. 13 is a diagram illustrating mounting of the cap, upper bracket, and radiator. It is.
In the first embodiment, a case where a vehicle heat exchanger is applied to a radiator will be described. Moreover, the same code | symbol is attached | subjected about the symmetrical member in the figure.

First, the overall configuration will be described.
The mounting structure of the vehicle heat exchanger according to the first embodiment mainly includes a radiator core support 1, a radiator 2, and a condenser 3.
The radiator core support 1 includes a radiator core support upper 1a that extends in the vehicle width direction, a radiator core support lower 1b that is parallel to the radiator core support upper 1a, and a hood lock stay that connects the central portions of the two. 1c and radiator core support sides 1d and 1d for connecting both ends of the both.

The radiator core support upper 1a includes an upper center portion 1e formed of a metal square pipe having a closed cross section, and an upper side portion 1f formed of a metal plate member having a U-shaped cross section opened downward, and the radiator The core support lower 1b is integrally formed of a metal square pipe having a closed cross section.
Reinforcing members 1g and 1g for reinforcing the connection between the upper center portion 1e and the upper side portion 1f, hood lock attaching portions 1h, and side member attaching plates 1i and 1i are made of metal.
The hood lock stay 1c and the radiator core support sides 1d and 1d are made of resin, and the upper and lower portions of the hood lock stay 1c and the radiator core support lower 1b wrap around the outer peripheral surface by injection molding with respect to the upper center portion 1e and the radiator core support lower 1b. They are combined and integrated by overmolding the resin.

  The radiator 2 includes tanks 2b and 2b on both the left and right sides of the core 2a, a pair of left and right vehicle mounting pins P1 and P1 projecting upward from the top thereof, and a pair of left and right vehicle mounting pins P2 from the lower portion thereof. , P2 protrudes downward.

  The capacitor 3 is provided with headers 3b, 3b on both left and right sides of the core 3a, a pair of left and right vehicle mounting pins P3, P3 projecting upward, and a lower portion of the pair of left and right vehicle mounting pins P4. , P4 protrudes downward.

The upper bracket 4 serves to support the capacitor 3 and the upper portion of the radiator 2 and is fixed to the radiator core support upper 1a.
Specifically, as shown in FIGS. 2 and 3, the upper bracket 4 is entirely formed of resin and has a mounting board portion 4 a in which left and right bolt holes T 1 and T 1 are formed, and the mounting board portion 4 a. A capacitor support portion 4b extending downward in a substantially U-shaped cross section and a radiator support portion 4c protruding toward the rear of the mounting substrate portion 4a are provided.
The diameters of the bolt holes T1, T1 in the mounting substrate portion 4a in the vehicle width direction are formed to be larger than the screw diameters of the bolts B1, B1 for fastening the upper bracket 4.
A locking hole T3 capable of elastically mounting and supporting the vehicle mounting pin P3 via a cylindrical insulator 9 is formed in the horizontal bottom portion 4d of the capacitor support portion 4b.
Further, a clip pin 4e for temporary fixing is integrally formed on the front surface side of the bottom portion 4d of the capacitor support portion, and a clip pin 4e can be inserted and locked on the lower surface side of the radiator core support upper 1a. A support plate 1j in which a simple engagement hole T4 is formed is provided.
The clip pin 4e is formed in the shape of an arrow. The clip pin 4e is elastically engaged by being inserted into the engagement hole T4 to prevent the clip pin 4e from being pulled out. The size of the engagement hole T4 is set so that it can move in the direction.
Weld nuts U1 and U1 are provided on the rear surface of the radiator core support upper 1a facing the pair of left and right bolt holes T1 and T1.
The radiator support portion 4c is provided with a pair of left and right arm portions 4f, 4f and is formed in a substantially plane U shape that is opened rearward. Hook portions 4g and 4g for wearing are formed.

As shown in FIGS. 4 to 9, the cap 6 is entirely formed of resin, and slits 6 a and 6 a into which the arm portions 4 f and 4 f enter and engage are formed on both the left and right sides.
The slits 6a and 6a are formed with opening portions 6b and 6b from which the hook portions 4g and 4g of the arm portions 4f and 4f protrude, and face the opening portions 6b and 6b. When the hook portions 4g and 4g get over in the approaching process, spring hook portions 6c and 6c are formed which are engaged with the hook portions 4g and 4g.
The spring hook portions 6c, 6c are integrally formed with a required length with the front side of the opening windows 6b, 6b as a base, and are bent and deformed in the vehicle width direction with the base as a fulcrum to exert the spring action. I can do it.

Further, a step portion 11 having a through hole 6e having a size that allows the vehicle mounting pin P1 to pass therethrough is formed in the center of the cap body 6d of the cap 6.
Further, the cap main body 6d is provided with an annular annular locking portion 6f projecting downward.
In addition, there is a reinforcing portion 6h projecting downward in a semi-cylindrical shape having three ribs 6g on the rear side of the cap 6 and having a predetermined gap with the outer periphery of the annular locking portion 6f. Is formed.

As shown in FIGS. 10 and 11, the insulator 7 is formed entirely of an elastic material such as rubber, and is disposed on the outer periphery of the cylindrical first annular portion 7a having a through hole 7f and the first annular portion. An annular second annular portion 7b and a connecting portion 7c that connects both the annular portions are formed, and an annular groove 7d that is opened upward by these three members is formed.
Further, the two annular portions 7a and 7b are partially changed in rigidity depending on the plate thickness and shape as compared with the connecting portion 7c.

  Further, the second annular portion 7b is formed with a flange portion 7e having a diameter increased radially outward, and an annular groove 12 is formed between the flange portion 7e and the connecting portion 7c. The connecting portion 7c is structured to be easily elastically deformed in the vertical direction.

  The lower bracket 5 serves to support the lower side of the radiator 2 and the capacitor 3, and is fixed in a pre-positioned state with respect to the radiator core support lower 1b, and the vehicle mounting pin P2 of the radiator 2 is cylindrical on the upper surface thereof. A mounting hole 5a for elastically mounting and supporting via the shape of the insulator 8 and a mounting hole 5b for elastically mounting and supporting the vehicle mounting pin P4 of the capacitor 3 via the cylindrical insulator 10 are formed. Has been.

Next, attachment of the capacitor 3 and the radiator 2 to the radiator core support will be described.
When attaching the condenser 3 and the radiator 2 to the radiator core support, first, the vehicle mounting pins P4 are inserted and supported in the mounting holes 5b of the lower bracket 5 via the insulator 10 at the lower left and right sides of the condenser 3, respectively.

  Next, the vehicle mounting pins P <b> 3 are inserted and supported in the locking holes T <b> 3 of the capacitor support portion 4 b of the upper bracket 4 via the insulator 9 at the left and right upper portions of the capacitor 3.

  Next, the capacitor 3 is temporarily fixed to the radiator core support 1 by inserting and engaging the clip pin 4e of the upper bracket 4 in the engagement hole T3 of the support plate 1j at the left and right upper portions of the capacitor 3.

  Next, the vehicle mounting pin P <b> 2 is inserted and supported in the mounting hole 5 a of the lower bracket 5 via the insulator 8 at the left and right lower portions of the radiator 2.

Next, after the insulator 7 is attached to the vehicle mounting pin P1 from above at the left and right upper portions of the radiator 2, the cap 6 is attached to the insulator 7 from above, and the radiator 2 is temporarily fixed to the radiator core support 1.
Specifically, as shown in FIGS. 12 and 13, the vehicle mounting pin P1 is made to pass through the through hole 7f of the insulator 7, and the bottom of the first annular portion 7a is connected to the pin plate 13 of the vehicle mounting pin P1. The insulator 7 is mounted on the vehicle mounting pin P1 by press-fitting until it comes into contact.
Next, the vehicle mounting pin P1 is passed through the through hole 6e of the cap 6, and press-fitted until the upper portion 7h of the second annular portion 7b of the insulator 7 contacts the bottom portion 6k of the cap body 6d. The cap 6 is attached to the insulator 7 by fitting the portion 6f into the annular groove 7d.

At this time, the annular locking portion 6f is in a state in which the outer periphery of the first annular portion 7a is fitted over the entire periphery.
Further, the first space W1 is formed between the bottom 6i of the annular locking portion 6f and the connecting portion 7c, and the second space is formed between the upper portion 7h of the first annular portion 7a and the bottom 6j of the step portion 11. A space W2 is formed.

Therefore, the vehicle mounting pin P1 and the first annular portion 7a can be swung in the vertical direction by the connecting portion 7c, and are prevented from swinging in the front-rear and left-right directions by the annular locking portion 6i.
The second annular portion 7b is fitted over the entire outer periphery of the annular locking portion 6f to position the annular locking portion 6f, and before and after the vehicle mounting pin P1 and the first annular portion 7a. It is a resistor against stress in the horizontal direction.

Next, when the radiator 2 is pressed against the upper brackets 4 and 4, the hook 4g of the arm 4f gets over the spring hook 6c of the cap 6 and engages with the spring hook 6c at the left and right upper parts, thereby mounting on the vehicle. The pin P1 is fixed and the radiator 2 is temporarily fixed to the upper centers 4 and 4 via the upper brackets 4 and 4.
The vehicle mounting pins P1 and P1, the insulators 7 and 7, and the caps 6 and 6 are installed after the insulators 7 and 7 and the caps 6 and 6 are first installed, You may make it attach to P1.

  Next, with the capacitor 3 and the radiator 2 temporarily fixed to the radiator core support 1, the bolts B1 inserted through the bolt holes T1 of the mounting board portion 4a at the left and right upper portions thereof are gently screwed into the weld nut U1 of the upper center 1d, respectively. In this state, the upper bracket 4 is moved in the vehicle width direction to adjust the position between the members.

  The position of the radiator 2 and the upper bracket can be adjusted within the range of the bolt holes T1 and T1 of each mounting board portion 4a formed as a long hole in the vehicle width direction, and the capacitor 3 and the upper bracket can be adjusted. The position adjustment with respect to 4 and 4 can be performed within the range of the locking holes T3 and T3 of the respective capacitor support portions 4c which are also formed as long holes in the vehicle width direction.

  After the position adjustment, the bolts B1 and B1 are completely fastened to fix the upper brackets 4 and 4 to the upper center 4d, thereby completing the mounting of the capacitor 3 and the radiator 2.

Next, the operation will be described.
In the vehicle heat exchanger mounting structure thus configured, the vehicle mounting pins P2 and P2 of the radiator 2 are supported via the insulators 8 and 8, so that the radiator 2 is moved up and down using the insulators 8 and 8 as springs. By moving it, it functions as a dynamic damper that reduces vibration when the vehicle is idling.

Here, if the upper part of the radiator 2 swings in the front / rear / left / right direction in addition to the above-described vertical movement, it contacts with peripheral members such as the radiator core support 1, the capacitor 3, and various wiring harnesses. Therefore, it is necessary to ensure a large clearance between the radiator 2 and the peripheral members.
However, in the mounting structure of the vehicle heat exchanger according to the first embodiment, the connecting portion 7c allows the vehicle mounting pin P1 and the first annular portion 7a to swing in the vertical direction, while the annular locking portion 6f mounts the vehicle. The pin P1 and the first annular portion 7a can be prevented from swinging in the front-rear and left-right directions. In other words, the radiator 2 can be prevented from swinging in the front-rear and left-right directions while allowing the radiator 2 to swing up and down. The clearance between 2 and the peripheral member can be made smaller than before, and the space in the engine room can be made more efficient.
Moreover, the displacement of the insulator 7 when the radiator 2 swings in the vertical direction can be allowed in the first space W1 and the second space W2.

Next, the effect will be described.
As described above, in the vehicle heat exchanger mounting structure according to the first embodiment, the pair of arm portions 4f provided on the upper bracket 4 of the radiator core support upper 1a and the arm portions 4f In the mounting structure of the vehicle heat exchanger that supports the vehicle mounting pin P1 protruding from the upper portion of the radiator 2 by the cap 6 having the engageable slit 6a via the insulator 7, the insulator 7 is connected to the vehicle mounting pin P1. A cylindrical first annular portion 7a that supports the first annular portion 7a, an annular second annular portion 7b that is disposed radially outside the first annular portion 7a, and the annular portions 7a and 7b. The cap 6 is provided with an annular groove 7d opened upward by a connecting portion 7c. The cap 6 includes a cap body 6d having a through hole 6e that allows the vehicle mounting pin P1 to penetrate, and the cap body 6d. The cylindrical annular locking portion 6f projecting downward from the upper side of the radiator 7 and the annular locking portion 6f of the cap 6 fitted into the annular groove 7d of the insulator 7 from above is allowed to swing the radiator 2 in the vertical direction. However, in order to suppress the swing of the radiator 2 in the front / rear / right / left direction, the front / rear / left / rear swing of the vehicle mounting pin P1 is performed by the annular locking portion 6f via the first annular portion 7a, in other words, the front / rear left / right of the radiator 2. As a result, it is possible to suppress the swinging of the direction, thereby reducing the required clearance between the radiator 2 and the vehicle body side to realize space efficiency and obtaining a stable spring constant as a dynamic damper.

A first space W1 is formed between the bottom 6i of the annular locking portion 6f and the connecting portion 7c, and a second space is formed between the upper portion 7g of the first annular portion 7a and the bottom 6j of the step portion 11. While W2 is formed, since the upper portion 7h of the second annular portion 7b and the bottom portion 6k of the cap body 6d are brought into contact with each other, the annular locking portion 6f of the cap 6 is fitted into the annular groove 7d of the insulator 7 from above. At this time, the upper portion 7h of the second annular portion 7b and the bottom portion 6k of the cap main body 6d come into contact with each other, and both can be positioned and fixed appropriately.
In addition, the displacement of the insulator 7 due to the vertical swing of the vehicle mounting pin P1 can be allowed in the first space W1 and the second space W2, thereby allowing the radiator 2 to swing in the vertical direction. 2 can be prevented from swinging in the front-rear and left-right directions.

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 the scope not departing from the gist of the present invention are included in the present invention.
For example, in the first embodiment, the case where the mounting structure of the vehicle heat exchanger is applied to the radiator has been described. However, the structure may be applied to a condenser, and the radiator and the condenser are integrally formed. It may be applied to a vessel.
Further, in the first embodiment, the radiator 2 and the capacitor 3 are fixed to the upper bracket 4, but both may be fixed by individual brackets.

It is a disassembled perspective view which shows the attachment structure of the heat exchanger for vehicles of Example 1 of this invention. It is an expansion perspective view of an upper bracket. It is sectional drawing explaining the mounting state of the bracket in the S3-S3 line of FIG. It is a top view of a cap. It is a front view of a cap. It is a rear view of a cap. It is a right view of a cap. It is a left view of a cap. It is a top perspective view of a cap. It is a top perspective view of an insulator. It is a bottom perspective view of an insulator. It is a figure explaining fixation of an upper bracket, a cap, an insulator, and a radiator. It is a figure explaining fixation of a cap, an upper bracket, and a radiator.

Explanation of symbols

B1 Bolt P1, P3 Vehicle mounting pin P2, P4 Vehicle mounting pin T1 Bolt hole T3 Locking hole T4 Engaging hole U1 Weld nut 1 Radiator core support 1a Radiator core support upper 1b Radiator core support lower 1c Hood lock stay 1d Radiator core support Side 1e Upper center portion 1f Upper side portion 1g Reinforcing member 1h Hood lock mounting portion 1i Side member mounting plate 1j Support plate 2 Radiator 2a, 3a Core portion 2b Tank 3 Capacitor 3b Header 4 Upper bracket 4a Mounting base 4b Capacitor support 4c Radiator Support portion 4d Bottom side portion 4e Clip pin 4f Arm portion 5 Lower bracket 5a, 5b Mounting hole 6 Cap 6a Slit 6b Opening portion 6c Spring hook portion 6d Cap body 6e Through hole 6f Annular Stop portion 6g Rib 6h Reinforcement portion 6i Bottom portion 6j (Step portion) Bottom portion 6k (Step portion) Bottom portion 7, 8, 9, 10 Insulator 7a First annular portion 7b Second annular portion 7c Connection Part 7d Annular groove 7e Flange part 7f Through hole 7g Upper part 7h (of the first annular part) Upper part 11 (of the second annular part) 11 Step part 12 Groove 13 Pin plate

Claims (1)

A vehicle mounting pin protruding from the top of the heat exchanger is supported via an insulator by a pair of arm portions provided on the upper bracket of the radiator core support upper and a cap having a slit engageable with the arm portions. In the mounting structure of the vehicle heat exchanger,
The insulator includes a cylindrical first annular portion that supports the vehicle mounting pin in a penetrating state, an annular second annular portion that is disposed radially outside the first annular portion, and both the annular portions. An annular groove opened upward by a connecting portion to be connected,
The cap includes a cylindrical annular locking portion protruding downward from the cap body,
By fitting the annular locking portion of the cap from above into the annular groove of the insulator, the connecting portion allows swinging of the heat exchanger in the vertical direction, while the annular locking portion is in the front / rear / left / right direction of the heat exchanger. The vehicle heat exchanger mounting structure is characterized in that swinging of the vehicle is suppressed.

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