JP2010018151A - Vehicular heat exchanger - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular heat exchanger capable of enhancing the cooling performance by effectively using a dead space on the rear side of a vehicle of a vehicular bumper, and capable of preventing any adverse effect on a condenser by high-temperature air passing through an intercooler. <P>SOLUTION: The heat exchanger comprises a pair of tanks 3a, 3b arranged with the predetermined spacing therebetween, and a core part 3c having a plurality of tubes 3k, 8 with both ends thereof being communicated with and connected to the tanks 3a, 3b. The core part 3c has an air-cooling unit 3i for cooling the cooling refrigerant in the tube 3k through the heat exchange with low-temperature air, and a water-cooling unit 3j for cooling the cooling refrigerant in the tube 8 through the heat exchange with low-temperature water. The water-cooling unit 3j is arranged at the superposing position in the vertical height on the rear side of the vehicle of a bumper armature 15 of a vehicle 1. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an air-water cooled vehicle heat exchanger.

2. Description of the Related Art Conventionally, a plurality of heat exchangers such as an intercooler, a condenser, and a radiator are juxtaposed along the vehicle front-rear direction in a vehicle engine room (see Patent Document 1).
JP 2007-331452 A

However, in recent years, the cooling performance required for heat exchangers tends to be high, and there is a problem that it is becoming difficult to cope with the conventional cooling structure.
In particular, the intercooler is required to have high cooling performance for the purpose of improving both exhaust gas and engine output.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a vehicle heat exchanger that can effectively improve a cooling performance by effectively using a dead space on the vehicle rear side of a vehicle bumper. Is to provide.
Another object of the present invention is to prevent adverse effects on the capacitor due to high-temperature wind that has passed through the intercooler.

  According to the first aspect of the present invention, in the heat exchanger, the core includes a pair of tanks arranged at a predetermined interval and a core portion having a plurality of tubes connected to the tanks corresponding to both ends. The air cooling unit for cooling the tube cooling medium with low-temperature air and the water cooling unit for cooling the tube cooling medium with the low-temperature water for cooling are provided, and the water cooling unit is installed on the vehicle bumper. It arrange | positions in the position where an up-down direction height overlaps on the vehicle rear side.

  According to the fifth aspect of the present invention, in the vehicle heat exchanger in which a condenser is arranged in parallel on the vehicle rear side of the intercooler, the air that prevents the wind that has passed through the core portion of the intercooler from hitting the supercooling portion of the condenser. A guide is provided.

In the first aspect of the present invention, an air cooling part that cools the cooling medium of the tube by heat exchange with low-temperature air and a water cooling part that cools the cooling medium of the tube by heat exchange with low-temperature water are provided in the core part. The water cooling unit is arranged at a position where the height in the vertical direction overlaps on the vehicle rear side of the bumper of the vehicle.
Thereby, the cooling performance can be improved by effectively utilizing the dead space on the vehicle rear side of the bumper of the vehicle.

  Further, in the invention described in claim 5, since the air guide that prevents the wind that has passed through the core portion of the intercooler from hitting the supercooling portion of the condenser is provided, Adverse effects can be prevented.

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

Example 1 will be described below.
The vehicle front-rear direction and the vehicle width direction will be described as the front-rear direction and the left-right direction.
FIG. 1 is a schematic diagram of a vehicle in which the vehicle heat exchanger according to the first embodiment is adopted, FIG. 2 is a rear view of the intercooler according to the first embodiment, and FIG. 3 is a cross-sectional view illustrating the inside of the tank according to the first embodiment. is there.

4 is a sectional view taken along line S4-S4 of FIG. 2, FIG. 5 is an exploded view (a) and a perspective view (b) showing the case of the first embodiment, FIG. 6 is a front view of the capacitor of the first embodiment, and FIG. Is a rear perspective exploded view of the radiator and the fan shroud, and FIG. 8 is a perspective view thereof.
FIG. 9 is a diagram for explaining the vehicle mounted state of the intercooler, the condenser, and the radiator (the fan shroud is omitted), and FIG. 10 is a diagram for explaining the cooling circuit of the first embodiment.

First, the overall configuration will be described.
As shown in FIG. 1, in the invention of the first embodiment, an intercooler 3 (corresponding to a heat exchanger in claims), a condenser 4, a radiator 5, a fan shroud 6, and an engine are entered into the engine room 2 of the vehicle 1 from the front. 7 are mounted in order.

As shown in FIG. 2, the intercooler 3 includes a pair of an upstream tank 3a and a downstream tank 3b disposed at a predetermined interval on the left and right, a core portion 3c disposed between the tanks 3a and 3b, and the like. Is provided.
As shown in FIGS. 3 and 4, each of the tanks 3a and 3b is formed in a container shape opened to the core portion 3c side, and the opening side outer peripheral edge portion thereof corresponds to a tube plate 3e via a seal member 3d. , Fixed to 3f by caulking.
An input pipe 3g projecting in a cylindrical shape rearward is formed on the upper rear surface of the tank 3a so as to communicate with the tank 3a. On the other hand, a rear cylinder projecting rearward is formed on the rear upper portion of the tank 3b. The output pipe 3h is formed in communication with the tank 3b.
The core portion 3c is provided with an upper air-cooling portion 3i occupying 3/4 of the core size (A1 range in the figure) and a lower water-cooling portion 3j occupying 1/4 (A2 range in the drawing).

  The air-cooling part 3i has a plurality of flat tubular tubes 3k (only nine are shown in the first embodiment) whose both ends are inserted and fixed to the corresponding tube plates 3e and 3f, respectively, and an adjacent tube 3k has a wave-like top. It is composed of a plurality of corrugated fins 3m (only nine are shown in the first embodiment).

  The water cooling section 3j includes a plurality of flat tubes 8 (only three are shown in the first embodiment) whose both ends are inserted and fixed to the corresponding tube plates 3e and 3f, and the tubes 8 are tube plates 3e and 3f. And a case 9 that surrounds the case 9 and an input pipe 10 and an output pipe 11 that project downward from the left and right ends of the case 9 in a state of communicating with the case 9.

As shown in FIG. 5, the case 9 includes upper and lower first divided bodies 11 a and second divided bodies 11 b that are fitted to each other and formed into a cylindrical shape.
The first divided body 11a has a substantially U-shaped cross section that opens downward and extends in the left-right direction, and extends rearward from the opposite side wall of the substantially U-shaped cross section of the main body 12. A flat air guide 13 is provided.
In addition, flat plate-like insertion portions 14 project in the left-right direction at both left and right ends of the main body 12.

The 2nd division body 11b has the substantially U-shaped cross section opened upwards, and is extended in the left-right direction.
Then, the cylindrical case 9 can be formed by fitting the opposing wall portions of the substantially U-shaped cross sections of the two divided bodies 11a and 11b together and assembling them.

  Case 9 has both insertion portions 14 of first divided body 11a inserted and fixed into corresponding tube plates 3e and 3f, respectively, and both left and right end surfaces of both divided bodies 11 and 12 are in close contact with tube plates 3e and 3f. Thus, the inside of the case 9 is sealed in a state of surrounding the tube 8.

In the intercooler 3, all the constituent members except the resin tanks 3a and 3b (both of the seal members 3d) are made of aluminum, and at least one side of the joint portions of the constituent members is brazed. (Clad sheet) is provided, and these are preliminarily assembled and then heat-treated in a heating furnace to be brazed and joined.
At this time, by inserting and fixing the respective insertion portions 14 of the first divided body 11a of the case 9 into the corresponding tube plates 3e and 3f, the first divided body 11a can be temporarily assembled in a correctly positioned state.
On the other hand, the second divided body 11b is fitted to the first divided body 11a from below the tube 8, and heat-treated in a state where the second divided body 11b is pressed and supported on the first divided body 11a side by a brazing jig (not shown), It can join in the state which contact | adhered favorably with respect to the division body 11a.
Further, the adhesion between the main body 12 of the first divided body 11a and the fins 3n (see FIGS. 3 and 4) joined to the main body 12, and the adjacent fins 3m (both of the fins 3n) and the waved tops of the tubes 3k It is possible to improve the adhesion of the film and to achieve good bonding.

Although the tanks 3a and 3b of the first embodiment are made of resin, they may be made of aluminum and brazed to the core portion 3c.
The case 9 may be fixed by welding to the tube plates 3e, 3f or the tanks 3a, 3b made of aluminum in a subsequent process.

As shown in FIG. 6, the capacitor 4 includes a pair of an upstream tank 4a and a downstream tank 4b disposed at a predetermined interval on the left and right sides, and a core portion 4c disposed between the tanks 4a and 4b. Is provided.
The upstream tank 4a is divided into three chambers R1, R3, and R6 by four divide plates D1 interposed therein.
The upstream tank 4a is provided with a connector 4e having an input port 4d connected to the chamber R1, and the connector 4e is provided with an output port 4g connected to the chamber R6 via a connection pipe 4f. ing.

On the other hand, the downstream tank 4b is divided into three chambers R2, R4, and R5 by four divider plates D2 interposed therein.
The downstream tank 4b is provided with a columnar receiver tank 4j connected to the chamber R4 and the chamber R5 through connecting pipes 4h and 4i.

The core portion 4c includes a plurality of flat tubular tubes 4k that are inserted and fixed in the tanks 4a and 4b, and corrugated plate-like fins 4m in which corrugated top portions are joined to the adjacent tubes 4k.
Further, both ends in the stacking direction of the tubes 4k and the fins 4m of the core 4c are connected and reinforced by a pair of reinforcements 4n and 4o in which both ends are inserted and fixed to the corresponding tanks 4a and 4b, respectively.
As a result, the core portion 4c includes an upper evaporation portion 4p (A3 range in the figure) composed of tubes 4k and fins 4m communicating with the chambers R1 to R4 on the upstream side of the receiver tank 4j, and the downstream side of the receiver tank 4j. A lower supercooling section 4q (A4 range in the figure) composed of tubes 4k and fins 4m communicating with the chambers R5 and R6 is provided.

In addition, the capacitor 4 is made of aluminum for all the constituent members, and a brazing material (clad sheet) is provided on at least one side of the joint portions of the constituent members. After these are temporarily assembled, It is heat-treated in a heating furnace and brazed. The receiver tank 4j is mounted after heat treatment according to the internal structure.
Further, the length in the left-right direction of the core size of the core portion 4 of the capacitor 4 is shorter than the core portion 3c of the intercooler 3, and the length in the vertical direction is longer than that of the core portion 3c.

As shown in FIGS. 7 and 8, a fan shroud 6 is mounted on the rear surface of the radiator 5.
The radiator 5 is a so-called downflow type in which a pair of an upstream tank 5a and a downstream tank 5b arranged at predetermined intervals in the vertical direction, and a core portion 5c arranged between the tanks 5a and 5b are provided. A radiator is used.

Each of the tanks 5a and 5b is formed in a container shape opened to the core portion 5c side, and the outer peripheral edge portion on the opening side is a tube plate 5e corresponding to the core portion 5c via a seal member 5d (see FIG. 9). , And fixed with caulking in close contact with 5f.
A fixing portion 5h having a screw hole 5g is formed on the rear surface of the tank 5a so as to be separated from the left and right and integrally formed with the tank 5a. On the one side in the longitudinal direction, the tank 5a communicates with the inside of the tank 5a. An input pipe 5i that integrally protrudes in a cylindrical shape is formed.
On the other hand, a fixed portion 5k having an insertion hole 5j opened in the vertical direction is formed on the rear surface of the tank 5b so as to be separated from the left and right and integrally formed with the tank 5b, and at a position diagonally opposite to the input pipe 5i. An output pipe 5m is formed so as to integrally project rearward in a cylindrical shape in communication with the inside of the tank 5b.

The core portion 5c includes a plurality of flat tubular tubes 5n whose both ends are inserted and fixed to the corresponding tube plates 5e and 5f, and corrugated plate-like fins 5o in which the corrugated tops are joined to the adjacent tubes 5n. It is configured.
Further, both ends in the stacking direction of the tubes 5n and the fins 5o of the core 5c are connected and reinforced by a pair of reinforcements 5p and 5q in which both ends are inserted and fixed to the corresponding tube plates 5e and 5f, respectively.

  Further, in the radiator 5, all the constituent members except for the resin tanks 5a and 5b (both of the sealing members 5d) are made of aluminum, and at least one of these joint portions is a brazing material (brazing sheet). These are preliminarily assembled and then heat-treated in a heating furnace to be brazed and joined.

Note that both tanks 5a and 5b may be made of aluminum and brazed to the core portion 5c.
Further, a so-called cross-flow type radiator having a core portion 5c between tanks arranged at predetermined intervals on the left and right may be employed.
Further, the length in the left-right direction in the core size of the core part 5 c of the radiator 5 is shorter than the core part 3 c of the intercooler 3 and longer than the core part 4 of the capacitor 4.
On the other hand, the length of the radiator 5 in the vertical direction is longer than the core portion 3 c of the intercooler 3 and somewhat longer than the core portion 4 of the capacitor 4.

The fan shroud 6 is formed in a substantially rectangular shape having a size that covers the core portion 5c of the radiator 5 and opened forward, and a shroud ring portion 6b that protrudes rearward in a cylindrical shape is formed on the rear shroud wall 6a. The fan 6c (illustrated for simplicity) is accommodated in the shroud ring portion 6b.
A plate-like fixing portion 6e provided with an insertion hole 6d at a position matching the corresponding screw hole 5g of the upstream tank 5a of the radiator 5 is provided on the upper portion of the peripheral wall of the fan shroud 6 while projecting upward. At the bottom of the peripheral wall, a plate-like fixing portion 6f that can be inserted and fixed in the insertion hole 5j of the corresponding fixing portion 5k of the downstream tank 5b of the radiator 5 from the upper side protrudes downward.

  Then, as shown in FIG. 8, the fan shroud 6 is disposed behind the radiator 5, and the fixing portion 6 f of the fan shroud 6 is inserted into the insertion hole 5 j of the fixing portion 5 k of the radiator 5 from above, and then the fan shroud 6. The bolt B1 is inserted into the screw hole 5g of the fixing part 5h of the radiator 5 from the insertion hole 6d of the fixing part 6f and screwed together so that both of them can be fixed.

As shown in FIGS. 1 and 9, the vehicle 1 according to the first embodiment includes a bumper armature 15 (corresponding to a bumper of the vehicle 1) that is made of a metal and has a hollow square cross section. A part of a resin bumper fascia 16 is disposed so as to cover the armature 15 from the front.
In addition, a grill-like upper opening 17 formed integrally with the bumper fascia 16 is formed above the bumper armature 15, while a grill-like lower opening 18 is formed below.

  The intercooler 3, the condenser 4, and the radiator 5 (both of the fan shroud 6) are mounted on the engine room 2 of the vehicle 1 via a radiator core support (not shown). At this time, the air cooling unit 3i (A1 in the figure) of the intercooler 3 is mounted. (Range) is arranged at a position facing the upper opening 17, while the water cooling part 3 j (A2 range in the figure) is arranged close to the position where the vertical height overlaps behind the bumper armature 15.

Further, the rear end of the air guide 13 of the water cooling unit 3j is arranged at a position that becomes a boundary between the evaporation unit 4p (A3 range in the drawing) and the supercooling unit 4q (A4 range in the drawing) of the core 4c of the condenser 4. Thus, the gap between the intercooler 3 and the condenser 4 is partitioned vertically by the air guide 13.
Note that the lower end of the capacitor 4 is disposed at a position lower than the intercooler 3, and the lower end of the radiator 5 is disposed at a position lower than the capacitor 4.

Next, the operation will be described.
<Operation of intercooler, radiator and fan>
As shown in FIG. 10, the intercooler 3 and the radiator 5 are used as components of an engine cooling circuit C1 and a turbocharger gas circuit C2.
Specifically, the engine 7 is a so-called turbocharged engine, and in the engine cooling circuit C1, high-temperature engine cooling water around 80 ° C. discharged from a water jacket (not shown) of the engine 7 is first connected to a connecting pipe. It is introduced into the radiator 5 through 19a.

As shown in FIG. 6, the engine coolant that has flowed into the upstream tank 5a from the connection pipe 19a via the input pipe 5i of the radiator 5 passes through the tubes 5n of the core portion 5c and flows into the downstream tank 5b. Between the upper opening 17 and the lower opening 18, the vehicle traveling wind passing through the core portion 5c or the forced wind by the fan 6c (shown by the broken line arrow in FIG. 9) is heat-exchanged and cooled to around 60 ° C.
Next, the engine coolant flowing into the downstream tank 5b is discharged from the output pipe 5m of the downstream tank 5b, and then passes through the thermostat 19e and the pump 19f via the connection pipes 19b to 19d shown in FIG. It is returned to the engine 7 again and circulates.

  Moreover, a part of engine cooling water which distribute | circulates the connection pipe 19b is introduce | transduced into the intercooler 3 via the connection pipe 19g.

Next, the engine coolant flowing into the case 9 from the connection pipe 19g through the input pipe 10 of the intercooler 3 flows in the case 9 in the longitudinal direction and is discharged from the output pipe 11, and then the connection pipe 19h. Through the connecting pipe 19b.
In addition, although illustration is abbreviate | omitted, the non-return valve which prevents that engine cooling water flows backward to the case 9 side is interposed by the connection pipe 19h.

  Further, while the temperature of the engine cooling water is low, the thermostat 19e is closed so that the entire amount of the engine cooling water flows from the connection pipe 19a to the bypass connection pipe 19i without bypassing the radiator 5 and the case 9. It circulates between the engine 7.

In the turbocharger gas circuit C2, the intake air introduced from an air cleaner (not shown) is first introduced into the compressor 19m of the turbocharger 19k through the connecting pipe 19j, and is pressurized and heated to 180 ° C. to 200 ° C.
Next, the intake air pressurized and heated by the compressor 19m is introduced into the intercooler 3 through the connection pipe 19n.

Next, part of the intake air that has flowed into the upstream tank 3a of the intercooler 3 from the connection pipe 19n passes through the upper opening 17 while flowing into the downstream tank 3b via the tube 3k of the air cooling section 3i. It is cooled by exchanging heat with the vehicle running wind or the forced wind of the fan 6c (shown by the broken arrow in FIG. 9).
On the other hand, the remaining part of the intake air flowing into the upstream tank 3a is cooled by exchanging heat with the engine coolant in the case 9 while flowing into the downstream tank 3b via the tube 8 of the water cooling section 3j. The
At this time, since the flow direction of the engine coolant and the intake air is in a convection relationship, heat exchange can be performed efficiently.

Next, the intake air in the downstream tank 3b cooled to 60 ° C. by the air cooling unit 3i and the water cooling unit 3j is discharged from the output pipe 3h, and then is connected to the engine 7 by the connection pipe 19o (intake manifold) shown in FIG. To an intake port (not shown).
Thereby, the supercharging efficiency of the engine 7 can be increased and the engine output can be improved.
Finally, exhaust gas discharged from an exhaust port (not shown) of the engine 7 is introduced into the turbocharger 19k through a connecting pipe 19p (exhaust manifold) and drives the turbine 19q. It is discharged outside the car through the main muffler.

<Capacitor operation>
The capacitor | condenser 4 is used as a component of the refrigeration circuit for vehicle interior air conditioning.
Since the vehicle interior air conditioning refrigeration circuit is the same as known, detailed description of each component is omitted, but the air conditioning compressor, condenser 4, evaporator and the like are vapor compression refrigeration circuits connected in a ring shape. .

As shown in FIG. 6, the flow medium (CO ₂ or HFC-134a or the like) of about 60 ° C. flowing into the chamber R1 of the upstream tank 4a from the air conditioning compressor side via the input port 4d of the connector 4e The vehicle running wind passing through the core portion 4c from the upper opening 17 and the lower opening 18 while forced through the respective tubes 4k of the core portion 4c while turning the chambers R2 and R3 in this order or forced by the fan 6c After heat exchange with wind (illustrated by broken line arrows in FIG. 9), the air flows into the chamber R4.

  Next, the flow medium in the chamber R4 flows into the receiver tank 4j from the connection pipe 4h and is gas-liquid separated by an internal structure (not shown), and then flows into the chamber R5 from the connection pipe 4i.

  Next, the liquid circulation medium in the chamber R5 passes through the core portion 4c from the upper opening 17 and the lower opening 18 while flowing through the tubes 4k corresponding to the chambers R5 and R6 of the core portion 4c. Or by heat exchange with the forced air (illustrated by broken line arrows in FIG. 9) by the fan 6c, it is supercooled to about 45 ° C. and flows into the chamber R6.

  Finally, the distribution medium in the chamber R6 is discharged from the output port 4g of the connector 4e to the evaporator side (not shown) through the connection pipe 4f.

<Intercooler water cooling>
Here, in recent years, intake air has been on the trend of high pressure and high temperature for the purpose of coexistence of improvement of exhaust gas considering environment (decrease of unburned gas and harmful components in exhaust gas) and improvement of engine output. If the target air temperature is set to 180 ° C. to 200 ° C. (previously around 140 ° C., increased by up to 42%), the conventional intercooler has a low cooling performance and cannot meet the cooling specification requirements. .
In addition, when the core part of the intercooler is placed on the rear side of the bumper armature, it has been found that a tube that is not exposed to wind is generated, leading to a decrease in cooling performance, and the intercooler is placed above the bumper armature or It is necessary to arrange at a position offset downward.
As a result, there is a problem that a dead space is generated on the rear side of the bumper armature, and the design freedom of the layout of the peripheral members is reduced.

  Furthermore, when the high-temperature wind that has passed through the intercooler hits the supercooling portion of the capacitor, the supercooling portion is heated to a high temperature, which may reduce the cooling performance of the capacitor.

For these problems, as described above, the intercooler 3 of the first embodiment cools the intake air with the vehicle running wind or the forced wind of the fan 6c and at the same time with the engine cooling water in the case 9, It functions as an air-water cooled heat exchanger, which can greatly improve the cooling performance of the intercooler 3 to satisfy high cooling specification requirements, and thus achieve both improvement of exhaust gas and improvement of engine output.
Further, since the engine cooling water of the engine cooling circuit C1 is circulated in the case 9, it can be realized with a simple and inexpensive system and is easy to implement.

  In addition, since the water-cooling part 3j is arranged at the position where the vertical height overlaps behind the bumper armature 15, the dead space behind the bumper armature 15 can be used effectively and at the same time, the design flexibility of the setting layout of the peripheral members is expanded. it can.

Further, the air guide 14 of the water cooling unit 3j can prevent high-temperature wind passing through the air cooling unit 3i of the intercooler 3 from hitting the supercooling unit 4q of the condenser 4.
In addition, the air that has passed through the lower opening 18 can be efficiently cooled by being guided to the supercooling portion 4q by the air guide 14, and the cooling performance of the capacitor 4 can be prevented from being lowered due to the high temperature of the supercooling portion 4q.

Although depending on the temperature condition of the engine cooling water introduced into the intercooler 3, if the cooling performance of the water cooling unit 3j is calculated to be three times that of the air cooling unit 3i, the intercooler 3 of the first embodiment uses the conventional air cooling type intercooler. It can be expected to improve the cooling performance by 1.5 times that of the cooler, and can cope with an increase in the intake air target temperature of up to 42% of the conventional maximum.
Further, the distribution of the range of the water cooling part 3j and the air cooling part 3i of the core part 3c can be set as appropriate. However, in order to make the engine cooling circuit C1 function stably and enable practical use, the water cooling part 3j Is set to about 1/4 of the core portion 3c.
That is, if the distribution of the range of the water cooling part 3j in the core part 3c is set too large, the burden on the engine cooling circuit C1 increases.
As a result, the radiator 5 is increased in size, the engine cooling water cannot be used, and a dedicated cooling circuit (sub-radiator, pump, piping, etc.) needs to be newly provided separately, making practical adoption difficult. .

Next, the effect will be described.
As described above, in the invention of the first embodiment, a pair of tanks 3a, 3b arranged at a predetermined interval, and a plurality of tubes 3k, both ends of which are connected to the corresponding tanks 3a, 3b, respectively. In the heat exchanger provided with the core portion 3c having 8, the core portion 3c has an air cooling portion 3i that cools the cooling medium of the tube 3k by exchanging heat with low-temperature air, and cools the cooling medium of the tube 8 with low-temperature water and heat. Since the water cooling part 3j for replacement and cooling is provided, and the water cooling part 3j is arranged at the position where the vertical height overlaps on the vehicle rear side of the bumper armature 15 of the vehicle 1, the dead space on the vehicle rear side of the bumper armature 15 of the vehicle 1 is arranged. Can be used effectively to improve the cooling performance.

  Further, the condenser 4 is arranged in parallel behind the heat exchanger, and the water cooling part 3j is arranged at a position where the vertical height overlaps on the vehicle front side of the supercooling part 4q of the condenser 4, so that the air cooling part 3i of the intercooler 3 is provided. The passing high temperature wind can be prevented from hitting the supercooling portion 4q of the capacitor 4, and the supercooling portion 4q can be prevented from being heated to lower the cooling performance of the capacitor 4.

  Moreover, since the heat exchanger is the intercooler 3, the cooling performance of the intercooler 3, which is particularly urgently required to improve the cooling performance, can be improved.

  In addition, since the air guide 13 that prevents the wind that has passed through the core portion 4c of the intercooler 3 from hitting the supercooling portion 4q of the condenser 4 is provided, the capacitor 4 is moved to the condenser 4 by the hot wind that has passed through the core portion 4c of the intercooler 3. Can prevent adverse effects.

Example 2 will be described below.
In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, the description thereof will be omitted, and only the differences will be described in detail.

  FIG. 11 is a diagram illustrating an air guide according to the second embodiment.

As shown in FIG. 11, in the second embodiment, the water-cooling portion 3j of the intercooler 3 described in the first embodiment is omitted, and the whole air-cooling portion 3i is used. In addition, near the lower ends of both tube plates 3e and 3f, A flat plate-shaped air guide 20 is provided so as to be inclined toward the boundary between the evaporation section 4p and the supercooling section 4q of the condenser 4.
The left and right ends of the air guide 13 are fixed to the corresponding tube plates 3e and 3f by welding (not shown).

  Therefore, in the second embodiment, it is possible to prevent the high temperature wind (see the broken line arrow) passing through the air cooling part 3i of the intercooler 3 from hitting the supercooling part 4q of the condenser 4 with the air guide 13, and the supercooling part 4q is heated to a high temperature. Thus, it is possible to prevent the cooling performance of the capacitor 4 from deteriorating.

  Moreover, compared with the case where a partition part is provided in the capacitor | condenser 4 side, the capacitor | condenser 4 can be made into a common component with respect to the vehicle model which does not mount the intercooler 3, and becomes suitable.

Although the embodiments have been described above, the present invention is not limited to the above-described embodiments, 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, the vertical position of the water cooling part of the intercooler can be set in accordance with the bumper armature. For example, the air cooling part may be arranged over the lower opening or both the upper opening and the lower opening.
Similarly, the rear end position of the air guide can be set in accordance with the position of the boundary between the condenser evaporation section and the supercooling section.

Moreover, the structure of the detailed site | part of the structural member mentioned above can be set suitably, for example, as shown in FIG. 12, you may make it comprise and assemble the case 9 by the four division bodies 30-33.
It is also conceivable to apply air-cooling of the intercooler to the oil cooler.

1 is a schematic diagram of a vehicle in which a vehicle heat exchanger of Example 1 is employed. It is a rear view of the intercooler of Example 1. 2 is a cross-sectional view illustrating the inside of a tank according to Embodiment 1. FIG. It is sectional drawing in the S4-S4 line | wire of FIG. It is the exploded view (a) and perspective view (b) which show the case of Example 1. FIG. 3 is a front view of the capacitor of Example 1. FIG. It is a rear perspective exploded view of a radiator and a fan shroud. It is a back perspective view of a radiator and a fan shroud. It is a figure explaining the vehicle mounting state of an intercooler, a capacitor | condenser, and a radiator (a fan shroud is abbreviate | omitted). It is a figure explaining the cooling circuit of Example 1. FIG. It is a figure explaining the air guide of Example 2. FIG. It is a figure explaining the case of another Example.

Explanation of symbols

B1 Bolt C1 Engine cooling circuit C2 Turbocharger gas circuit D1, D2 Divide plate 1 Vehicle 2 Engine room 3 Intercooler 3a Upstream tank 3b Downstream tank 3c Core part 3d Seal member 3e, 3f Tube plate 3g Input pipe 3h Output pipe 3i Air cooling section 3j Water cooling section 3k Tube 3m, 3n Fin 4 Capacitor 4a Upstream tank 4b Downstream tank 4c Core section 4d Input port 4e Connector 4f, 4h, 4i Connection pipe 4g Output port 4j Receiver tank 4k Tube 4n, 4o Reinforce 4p Evaporating section 4q Subcooling section 5 Radiator 5a Upstream tank 5b Downstream tank 5c Core section 5d Seal member 5e, 5f Tube plate 5g Screw hole 5h, 5k Fixing section 5i Input pipe 5j Insertion hole 5m Output pipe 5n Tube 5o Fin 5p, 5q Reinforce 6 Fan shroud 6a Shroud wall 6b Shroud ring part 6c Fan 6d Insertion hole 6e, 6f Fixing part 7 Engine 8 Tube 9 Case 10 Input pipe 11 Output pipe 11a First divided body 11b Second divided body 12 Main body 13 Air guide 14 Insertion part 15 Bumper armature 16 Bumper fascia 17 Upper opening part 18 Lower opening parts 19a, 19b, 19c, 19d, 19g, 19h, 19i, 19j, 19n, 19o, 19p, 19q, 19r Connecting pipe 19e Thermostat 19f Pump 19k Turbocharger 19m Compressor 20 Air guide

Claims (5)

A pair of tanks arranged at predetermined intervals;
In a heat exchanger comprising a core portion having a plurality of tubes that are connected to the corresponding tanks at both ends, respectively.
In the core part, an air cooling part that cools the tube cooling medium with low-temperature air and cools it, and a water cooling part that heats and cools the tube cooling medium with low-temperature water are provided,
The vehicle heat exchanger according to claim 1, wherein the water cooling unit is disposed at a position where the height in the vertical direction overlaps on the vehicle rear side of the bumper of the vehicle. The vehicle heat exchanger according to claim 1, wherein
A condenser is juxtaposed on the vehicle rear side of the heat exchanger,
The vehicle heat exchanger is characterized in that the water cooling part is arranged at a position where the vertical height overlaps on the vehicle front side of the supercooling part of the condenser. The vehicle heat exchanger according to claim 2,
A vehicle heat exchanger characterized in that the heat exchanger is an intercooler. In the vehicle heat exchanger according to claim 3,
A vehicle heat exchanger comprising an air guide for preventing wind passing through a core portion of the intercooler from hitting a supercooling portion of a condenser. In the vehicle heat exchanger in which the condenser is arranged in parallel on the vehicle rear side of the intercooler,
A vehicle heat exchanger comprising an air guide for preventing wind passing through a core portion of the intercooler from hitting a supercooling portion of a condenser.

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