JP2002168588A - Composite heat exchanger for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a composite heat exchanger for a vehicle capable of stably coupling with a small number of components and integrally mounting at the vehicle in the exchange in which a condenser, a radiator and a fan shroud are superposed. SOLUTION: A first stretched part 2 and a second stretched part 3 are provided at a lower end of a shroud body 1 made of a synthetic resin. Lower side mounting pins 4 are integrally projected from their lower surfaces. A first heat exchanger 9 is engaged with and supported to the part 2. A lower surface of a tank 10 of a second heat exchanger 14 is placed on the part 3, and its engaging pin 12 is engaged with a locking hole 13 of the part 3. Further, one end of an upper coupling material 21 is fixed to an upper end of the shroud 5 by a locking means 15, and an upper side tank 6 of the exchanger 9 is engaged with a first part 16 to be engaged. An upper end of the tank 10 of the exchanger 14 is engaged with a part 17 to be engaged, and its engaging pin 12 is inserted into a locking hole 19.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite heat exchanger in which a radiator for a vehicle, a condenser for a car air conditioner, and a fan shroud for wind generation are integrally connected.

[0002]

2. Description of the Related Art A radiator for cooling an engine, a condenser for a car air conditioner, and a shroud for a fan that blows air are respectively fastened and fixed to each other via a plurality of brackets and bolts. Was common. Further, when attaching the shroud to the radiator, it is also known that a plurality of brackets, pins and pin holes are formed at respective lower ends thereof, and they are engaged with each other, and the upper end thereof is used to fasten the shroud and the radiator with bolts. . In order to attach the condenser to the radiator, generally, brackets that match each other are protruded from the respective outer peripheral portions, and the brackets are fastened with bolts.

[0003]

The conventional connection structure of a composite heat exchanger with a shroud has the disadvantage that the number of fastening parts between the three members increases, and assembly and fastening are troublesome. Therefore, an object of the present invention is to provide a composite heat exchanger for a vehicle that has a small number of parts and can easily connect the three members.

[0004]

According to the first aspect of the present invention, a first overhang (2) and a second overhang (2) for mounting a plurality of heat exchangers on a tank are provided at a lower end of a shroud body (1). The overhang (3)
In the thickness direction, each mounting section is distinguished and provided integrally, and a fan shroud (5) made of synthetic resin with a lower mounting pin (4) integrally protruding from its lower surface is separated vertically. A core (8) is provided between the upper tank (6) and the lower tank (7), and the lower surface of the lower tank (7) is the first tank.
A core (11) is provided between a first heat exchanger (9) fitted and supported on the overhang portion (2) and a pair of tanks (10) spaced apart from each other. The lower surface is placed on the second overhang portion (3), and the engagement pin (12) protruding from the lower surface of the tank (10) is engaged with the locking hole (13) of the second overhang portion (3). A second heat exchanger (14) inserted into the first heat exchanger (9), and one end is fixed to an upper end of the fan shroud (5) by fastening means (15). 6) The first fitting portion (16) for fitting the upper surface of the second heat exchanger (14) and the second fitting for fitting the upper ends of both tanks (10) of the second heat exchanger (14).
A fitting portion (17) is provided integrally in the thickness direction to distinguish each fitting section, and an engagement pin (12) protruding from the upper surface of both tanks (10) has a second covering. Lock hole (1) of fitting part (17)
9) and an upper connecting member (21) made of a synthetic resin having an upper mounting pin (20) integrally projecting from the upper surface thereof.

According to a second aspect of the present invention, in the first aspect, a third overhang portion (22) is attached to the first overhang portion (2) or the second overhang portion (3) of the fan shroud (5). ) Are integrally provided, and a third fitted portion (23) is provided integrally with the first fitted portion (16) or the second fitted portion (17) of the upper connecting member (21), and the first heat A radiator for cooling engine cooling water is disposed as an exchanger (9), a condenser for a car cooler is disposed as a second heat exchanger (14), and a third heat exchanger (24) for cooling a supercharged air. A header (25) of the intercooler is a composite heat exchanger for a vehicle supported by the third overhang (22) and the third fitted portion (23).

[0006]

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an exploded perspective view of the composite heat exchanger of the present invention, FIG. 2 is a side view showing an assembled state thereof, and FIG. 3 is an enlarged vertical sectional view of a portion III in FIG. This combined heat exchanger includes a shroud 5, a first heat exchanger 9, a second heat exchanger 14, and an upper connecting member 21. The shroud 5 is made of a synthetic resin injection molded body, and an electric motor (not shown) is attached to the shroud main body 1 via a stay 27 and a motor support 28, and a fan 29 for blast is provided on a rotating shaft of the electric motor. Fixed. At the lower end of the shroud body 1, a first overhang 2 formed in a shallow groove shape,
A second overhang 3 protruding from the side wall in an inverted L-shaped cross section is provided. A pair of locking holes 13 are formed at both ends in the longitudinal direction of the second protrusion 3. Further, stopper portions 18 are integrally formed at both ends in the longitudinal direction of the first overhang portion 2. Further, a pair of lower mounting pins 4 are integrally formed on the lower surface of the first overhang portion 2 and are spaced apart in the longitudinal direction thereof. Next, on the upper end of the shroud body 1, a fastening pin shown in FIGS.

Next, the upper connecting member 21 is made of a synthetic resin injection molded body, is formed in a hat shape in cross section as shown in FIG. A matching groove-shaped first fitted portion 16 is provided, and a second fitted portion 17 is provided at the lower end of the side wall portion in the thickness direction of the shroud main body 1. The second fitted portion 17 is substantially symmetrically aligned with the second overhang portion 3 of the shroud 5. A pair of locking holes 19 are provided at both ends in the longitudinal direction of the second fitted portion 17. In addition, a pair of upper mounting pins 20 are integrally protruded from the upper surface of the first fitted portion 16 and are spaced apart in the longitudinal direction. Further, a flange portion 30 protrudes from the first fitted portion 16 on the side opposite to the second fitted portion 17, and a hole is formed in the upper end of the shroud main body 1 so as to align with the fastening means 15. . As shown in FIG. 3, the fastening means 15 has a slit 31 formed on a diameter line crossing the axis thereof, and saw blade members on both sides of the slit 31 are formed on the slit 31 side so as to be elastically deformable. .

Next, the first overhang portion 2 of the shroud 5 is aligned with the outer periphery of the lower tank 7 of the first heat exchanger 9. Then, both ends in the longitudinal direction of the lower tank 7 abut or approach the stopper portion 18. The first heat exchanger 9 has a pair of upper tanks 6 and a lower tank 7 which are vertically separated from each other,
A core 8 composed of a fin and a tube is provided between them. The first heat exchanger 9 is a radiator for cooling the engine in this example, in which cooling water flows down from the upper tank 6 to the lower tank 7 in each tube. In addition, an inlet / outlet pipe (not shown) is provided in each of the upper tank 6 and the lower tank 7, and a filler neck for water supply is provided, and a pressure cap is fitted to the opening. Next, a pair of locking holes 13 of the second overhang portion 3 are provided with engagement pins projecting from the lower surface of each tank 10 of the second heat exchanger 14.
Match to 12. The second heat exchanger 14 has a pair of tanks 10 separated from each other on the left and right sides, and the core 11 is disposed between them. The core consists of fins and tubes. This second heat exchanger 14 is a condenser for a car cooler,
Refrigerant flows from one tank 10 to the other tank 10 in each tube in the horizontal direction. Tank 10 of second heat exchanger 14
An unillustrated refrigerant inlet / outlet pipe is also connected.

Next, an example of a method of connecting the heat exchangers and the shroud shown in FIG. 1 will be described. First, the lower tank 7 of the first heat exchanger 9 is placed on the first overhang 2 of the shroud 5. Next, a pair of engagement pins 12 protruding from the lower end of the second heat exchanger 14 are engaged with the engagement holes of the second overhang 3 of the shroud 5.
13 so that the lower surface of each tank 10 is supported on the second overhang 3. Next, the upper connecting member 21 is fitted over the respective upper ends of the shroud body 1, the upper tank 6, and the tank 10, and the locking holes of the flange portion 30 are pressed into the fastening means 15. Then, as shown in FIG. 2 and FIG. At the same time, the first fitted portion 16 fits the outer periphery of the upper end of the upper tank 6, the second fitted portion 17 supports the upper end of the tank 10, and the engaging pin 12 is
Fit into 19. Thereby, the shroud 5, the first heat exchanger 9, and the second heat exchanger 14 are integrally connected to each other.

Next, FIG. 4 is a schematic perspective view showing a main part of a second embodiment of the present invention. This embodiment is different from that of FIG. 1 in that an upper connecting member 21 and a shroud 5 are fastened. Means 15
It is. In this example, a pair of bracket portions 32 are integrally protruded from the edge of the flange portion 30 of the upper connecting member 21, and the holes of the bracket portions 32 are aligned with the bolt holes provided at the upper end of the shroud body 1. , Fastening means consisting of screws on them
Numeral 15 is the fastening and fixing. Next, FIG. 5 is a side view showing another embodiment of the present invention.
The difference is that the third heat exchanger 24 is arranged adjacent to the first heat exchanger 9. A pair of headers 25 vertically separated from the third heat exchanger 24 are supported by the third overhang portion 22 of the shroud 5 and the third fitted portion 23 of the upper connecting member 21.

[0011]

According to the first aspect of the present invention, the first overhanging portion 2 and the second overhanging portion 3 are integrally formed at the lower end of the shroud body 1 by distinguishing the placement sections in the thickness direction thereof. And the lower tank 7 and the second heat exchanger 14 of the first heat exchanger 9 are provided respectively.
And the upper connecting member 21 connects the upper end of the shroud body 1, the upper tank 6 of the first heat exchanger 9, and the tank 10 of the second heat exchanger 14 to each other. . Therefore, the shroud 5, the first heat exchanger 9, and the second heat exchanger 14 can be easily connected to each other. Then, it becomes easy to integrally mount the support member of the vehicle via the lower mount pin 4 of the shroud 5 and the upper mount pin 20 of the upper connecting member 21. According to the second aspect of the present invention, the third heat exchanger 24 can be further integrally connected to each other, and a composite heat exchanger with good mountability to a vehicle can be provided.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a composite heat exchanger for a vehicle, showing a first embodiment of the present invention.

FIG. 2 is a side view showing an assembled state of the heat exchanger.

FIG. 3 is an enlarged vertical sectional view of a part III in FIG. 2;

FIG. 4 is a schematic perspective view of a main part of a composite heat exchanger for a vehicle according to a second embodiment of the present invention.

FIG. 5 is a side view of a composite heat exchanger for a vehicle, showing a third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shroud main body 2 1st overhang 3 Second overhang 4 Lower mount pin 5 Shroud 6 Upper tank 7 Lower tank 8 Core 9 First heat exchanger 10 Tank 11 Core 12 Engagement pin 13 Lock hole 14 Second heat exchanger 15 Fastening means 16 First fitted portion 17 Second fitted portion 18 Stopper portion 19 Locking hole 20 Upper mount pin 21 Upper connecting member 22 Third overhang portion 23 Third fitted portion 24 Third heat exchanger 25 Header 26 Reinforcement rib 27 Stay 28 Motor support 29 Fan 30 Flange 31 Slit 32 Bracket

Claims (2)

[Claims] At a lower end of a shroud body (1), a first overhanging portion (2) and a second overhanging portion (3) for mounting tanks of a plurality of heat exchangers are respectively provided in a thickness direction thereof. The mounting section is distinguished and provided integrally, and the lower mounting pin
(4) Fan shroud made of synthetic resin with one piece protruding
(5) and a core (8) between an upper tank (6) and a lower tank (7) which are vertically separated from each other, and the lower surface of the lower tank (7) has the first overhanging portion ( 2) a first heat exchanger (9) fitted to and supported on a core (11) between a pair of tanks (10) spaced apart from each other;
The lower surfaces of both tanks (10) are placed on the second overhang portion (3), and the engagement pins (12) projecting from the lower surfaces of the tanks (10) are provided.
And a second heat exchanger (14) fitted into the locking hole (13) of the second overhanging portion (3), and one end of one end of the fan shroud (5) with a fastening means (1).
5), fixed by the upper tank of the first heat exchanger (9)
(6) and a second fitting portion (1) fitting the upper ends of both tanks (10) of the second heat exchanger (14).
7) are provided integrally in the thickness direction to distinguish the respective fitted sections, and an engaging pin (12) projecting from the upper surface of both tanks (10) is provided with a second fitted portion (17). A) a synthetic resin upper connecting member (21), which is inserted into the locking hole (19) and has an upper mounting pin (20) integrally projecting from the upper surface thereof. . 2. A fan shroud (5) according to claim 1, wherein the first overhang (2) or the second overhang (2) is provided.
A third overhang portion (22) is integrally provided with the overhang portion (3), and the first fitting portion (16) or the second fitting portion (1) of the upper connecting member (21) is provided.
7), a third fitted portion (23) is integrally provided, a radiator for cooling engine cooling water is arranged as a first heat exchanger (9), and a car cooler as a second heat exchanger (14). A condenser is disposed, and a header (25) of an intercooler for supercharging is provided as a third heat exchanger (24).
A composite heat exchanger for a vehicle supported by the fitted portion (23).