JP2019104303A - Cooler for vehicle - Google Patents

Abstract

To provide a cooler for a vehicle, which can be miniaturized.SOLUTION: A cooler 1 for a vehicle comprises a radiator 2 and an air flow rate controller 3 which comprises an adjustment plate 9 moving in a vertical direction and a guide member 11 for guiding the adjustment plate 9 and controls a rate of air flow flowing toward the radiator 2. The radiator 2 has: a plurality of heat exchanger tubes 4 for coolant which have a lengthwise direction in a longitudinal direction and are arranged at intervals in the vertical direction; and fins 5 each of which is arranged in a ventilation space 7 formed between heat exchanger tubes 4 for coolant adjacent to each other. A plurality of air passage holes 12 comprising long holes having a lengthwise direction in the longitudinal direction and having a breadthwise direction in the vertical direction are formed in the adjustment plate 9 at intervals in the vertical direction. A size in the breadthwise direction of the air passage holes 12 is made equal to or smaller than that in the breadthwise direction of the ventilation spaces 7 between the heat exchanger tubes 4 for coolant adjacent to each other, and a pitch between the heat exchanger tubes 4 for coolant adjacent to each other and that between the air passage holes 12 adjacent to each other are equalized.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vehicle cooling device.

  In this specification and claims, the direction indicated by the arrow X in the drawings (the front of the vehicle on which the vehicle cooling device is mounted) is referred to as the front, and the opposite side is referred to as the rear. In addition, the upper and lower, right and left (upper and lower, right and left in FIG. 2) viewed from the front to the rear are referred to as upper and lower, right and left.

  Conventionally, it is introduced into the engine room through a traveling wind inlet such as a front grille provided at the front end of the vehicle for the purpose of suppressing deterioration in fuel efficiency performance caused by combustion failure due to engine overcooling and increased air resistance of the vehicle. Various structures for adjusting the amount of air are proposed.

  For example, Patent Document 1 includes a radiator and an openable and closable grille shutter that adjusts the flow rate of air taken from an opening provided in front of the radiator and flowing toward the radiator, and the grille shutter is a shutter A vehicle cooling device is described which comprises a support member and a plurality of louvers rotatably mounted on the shutter support member.

  However, in the vehicle cooling device described in Patent Document 1, by rotating the plurality of louvers of the grille shutter, the flow rate of air taken in from the opening provided in front of the radiator and flowing toward the radiator is adjusted. Since the structure of the grille shutter is complicated, the cooling system for the vehicle is enlarged.

JP, 2017-87924, A

  An object of the present invention is to provide a cooling system for a vehicle which can solve the above problems and can be miniaturized.

  The present invention comprises the following aspects in order to achieve the above object.

1) A radiator, and an air flow rate adjustment unit provided in front of the radiator and adjusting the flow rate of air taken toward the radiator from the air intake opening formed on the front side of the radiator in the vehicle A cooling device for a vehicle,
The radiator has a plurality of cooling fluid heat exchange tubes arranged at intervals in a direction perpendicular to the front-rear direction with the longitudinal direction oriented in the same direction, and between adjacent cooling fluid heat exchange tubes. An adjusting plate having a heat exchange core portion including fins disposed in the formed ventilation gap, the air flow rate adjusting portion being formed with a plurality of air passage holes and movable in a surface direction; The guide plate movably guides the adjusting plate, and the adjusting plate is moved in the surface direction along the guide member, so that the amount of air passing through the air passage hole and hitting the fins of the heat exchange core of the radiator is adjusted. Vehicle cooling system being made to be done.

  2) The air flow rate adjusting portion is provided with a pair of guide members arranged at an interval in a state in which the longitudinal direction is in the same direction, and the end of the adjusting plate is movable to the guide member The cooling device for a vehicle according to the above 1), wherein a guide groove is formed to fit into the groove.

  3) The air flow rate adjustment unit is disposed immediately in front of the radiator, and the adjustment plate of the air flow rate adjustment unit is movably provided in the arranging direction of the heat exchanger tubes for coolant, and the guide member is for adjustment The heat exchanger tubes are guided in the direction in which the heat exchange tubes are arranged, and the adjustment plate is such that the longitudinal direction is the longitudinal direction of the heat exchanger tubes for cooling fluid of the radiator and the width direction is the direction in which the heat exchange tubes for cooling fluid A plurality of air passage holes consisting of elongated holes are formed at intervals in the arranging direction of the heat exchanger tubes for cooling fluid, and the dimension in the width direction of the air passage holes of the adjusting plate is the heat for cooling fluid adjacent to the radiator The dimension in the width direction of the ventilation gap between the exchange pipes is equal to or less than the width direction of the ventilation gap, and the pitch between adjacent coolant heat exchange pipes of the radiator and the pitch between adjacent air passage holes of the adjustment plate are the same. The vehicle cooling device according to 1) or 2).

  4) The heat exchange core portion of the radiator is provided between a pair of header tanks disposed at a distance from each other with the longitudinal direction directed to the alignment direction of the heat exchange tubes for coolant, and the heat exchange core portion The vehicle cooling device according to the above 3), wherein both ends of the cooling liquid heat exchange pipe are connected to both header tanks, and the guide member of the air flow rate adjustment unit is provided in the header tank.

  5) A condenser is disposed in front of the radiator, and an air flow rate adjustment unit is disposed immediately in front of the condenser, and the condenser has an interval in a direction perpendicular to the front and back direction with the longitudinal direction oriented in the same direction. A heat exchange core unit comprising a plurality of refrigerant heat exchange tubes disposed in one space and fins disposed in a ventilation gap formed between adjacent refrigerant heat exchange tubes; And the guide member guides the adjusting plate in the arranging direction of the refrigerant heat exchange tubes, and the adjusting plate has a longitudinal direction A plurality of air passage holes formed by elongated holes whose longitudinal direction is directed to the refrigerant heat exchange tubes and whose width direction is directed to the refrigerant heat exchange tubes are arranged at intervals along the refrigerant heat exchange tubes. Formed and adjusting plate The dimension in the width direction of the air passage hole is equal to or less than the dimension in the width direction of the ventilation gap between the adjacent refrigerant heat exchange pipes of the condenser, and the pitch between the adjacent refrigerant heat exchange pipes of the condenser and the adjustment plate The vehicle cooling device according to the above 1) or 2), wherein the pitch between the adjacent air passage holes is the same.

  6) The heat exchange core portion of the condenser is provided between a pair of header tanks disposed at a distance from each other with the longitudinal direction directed to the direction in which the heat exchange tubes for refrigerant are aligned, and The vehicle cooling device according to the above 5), wherein both ends of the refrigerant heat exchange pipe are connected to both header tanks, and the guide member of the air flow rate adjustment unit is provided in the header tank of the condenser.

  According to the vehicle cooling device of the above 1) to 6), the air passage is made by moving the adjusting plate of the air flow rate adjusting portion along the guide member in the surface direction of the adjusting plate (a direction perpendicular to the thickness direction). The amount of air that can pass through the holes and strike the fins of the radiator can be adjusted, so that the radiator can be properly cooled. Therefore, it is possible to prevent the engine coolant from being excessively cooled, and it is possible to prevent a decrease in fuel efficiency performance caused by the engine being cooled too much, and to prevent an increase in air resistance of the vehicle. It is possible to prevent the deterioration of the fuel efficiency performance caused by the increase of the air resistance. The air flow rate adjusting unit includes the adjusting plate provided with a plurality of air passage holes and movable in the surface direction and the guide member for guiding the adjusting plate in a movable manner. This structure is simplified as compared with the structure of the grille shutter described in Patent Document 1, and the vehicle cooling device can be miniaturized.

  According to the vehicle cooling device of the above 2), the configuration of the guide member of the air flow rate adjustment unit is simplified.

  According to the vehicle cooling device of the above 3), by moving the adjusting plate along the guide member in the direction in which the heat exchanger tubes for cooling liquid are arranged, the area of the portion through which the air passes in the air passage hole is changed. The amount of air that hits the fins of the radiator can be adjusted. Therefore, it becomes possible to properly cool the radiator, to prevent the engine coolant from being excessively cooled, and to prevent the deterioration of the fuel efficiency performance caused by the engine being cooled too much. As a result, it is possible to prevent an increase in air resistance of the vehicle, and to prevent a decrease in fuel efficiency performance caused by the increase in air resistance. Then, the adjustment plate of the air flow rate adjustment unit is provided so as to be movable in the direction in which the heat exchange tubes for coolant are arranged, and the guide member guides the adjustment plate in the direction in which the heat exchange tubes for coolant are arranged. The adjusting plate has a plurality of air passage holes, each of which has an elongated hole whose longitudinal direction is in the longitudinal direction of the heat exchanger tube for coolant and the width direction is in the direction of alignment of the heat exchanger tubes for coolant. The heat transfer tubes are formed at intervals in the arranging direction of the heat exchange tubes, and the dimension in the width direction of the air passage holes of the adjusting plate is equal to or less than the dimension in the width direction of the ventilation gap between adjacent coolant heat exchange tubes of the radiator. Since the pitch between adjacent coolant heat exchange tubes of the radiator and the pitch between adjacent air passage holes of the adjustment plate are the same, the structure of the air flow rate adjustment unit is described in Patent Document 1 Simpler than the structure of the grille shutter , It is possible to reduce the size of the vehicle refrigerator.

  According to the vehicle cooling device of the above 4), the guide member of the air flow rate adjustment unit can be easily disposed at a required position, and the space for disposing the guide member can be reduced.

  According to the vehicle cooling device of the above 5), by moving the adjusting plate along the guide member in the direction in which the refrigerant heat exchange tubes are arranged, the area of the air passing hole in the air passing hole is changed. It is possible to adjust the amount of air that hits the fins of the radiator through the ventilation holes in the passage holes and the heat exchange core of the condenser. Therefore, it becomes possible to properly cool the radiator, to prevent the engine coolant from being excessively cooled, and to prevent the deterioration of the fuel efficiency performance caused by the engine being cooled too much. As a result, it is possible to prevent an increase in air resistance of the vehicle, and to prevent a decrease in fuel efficiency performance caused by the increase in air resistance. The adjustment plate of the air flow rate adjustment unit is provided so as to be movable in the arranging direction of the refrigerant heat exchange tubes, and the guide member guides the adjusting plate in the arrangement direction of the refrigerant heat exchange tubes. The plate has a plurality of air passage holes formed by elongated holes whose longitudinal direction is the longitudinal direction of the refrigerant heat exchange tube of the condenser and whose width direction is the direction of alignment of the refrigerant heat exchange tubes. The dimension in the width direction of the air passage holes of the adjusting plate is equal to or less than the dimension in the width direction of the ventilation gap between the adjacent refrigerant heat exchange tubes of the condenser. Since the pitch between the heat exchange tubes for refrigerant and the pitch between the adjacent air passage holes of the adjustment plate are the same, the structure of the air flow rate adjustment unit is compared to the structure of the grille shutter described in Patent Document 1. Simplifies the cooling of the vehicle It is possible to reduce the size of the location.

  According to the vehicle cooling device of the above 6), the guide member of the air flow rate adjustment unit can be easily arranged at a required position, and the space for arranging the guide member can be reduced.

It is a partially cutaway perspective view which shows the whole structure of the cooling device for vehicles of this invention. It is a partially cutaway front view which partially shows the cooling device for vehicles of FIG. It is the AA expanded sectional view of FIG. 2 which abbreviate | omitted one part. FIG. 3 is a view corresponding to FIG. 2 showing the case of reducing the amount of air that hits the fins of the radiator in the vehicle cooling device of FIG. 1; It is a partially cutaway perspective view which shows the whole structure of other embodiment of the cooling device for vehicles of this invention. It is a figure equivalent to FIG. 3 which shows the structure of the principal part of the cooling device for vehicles of FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  In the following description, the term "aluminum" includes aluminum alloys in addition to pure aluminum.

  The same symbols are attached to the same parts and the same parts throughout the drawings.

  FIG. 1 shows the whole construction of a cooling system for a vehicle according to the present invention, and FIGS. 2 to 3 show the construction of the essential parts thereof. In FIG. 2, the illustration of the fins is omitted. Further, FIG. 4 shows a case where the amount of air that hits the fins of the radiator is reduced in the vehicle cooling device of FIG.

  In FIGS. 1 to 3, the vehicle cooling device (1) is provided immediately before the radiator (2) and the radiator (2), and is an air intake opening formed on the front side of the radiator (2) in the vehicle. And an air flow rate adjustment unit (3) for adjusting the flow rate of air taken in from the unit (not shown) and flowing toward the radiator (2).

  The radiator (2) is a flat shape made of a plurality of aluminum members arranged at intervals in the vertical direction which is a direction perpendicular to the longitudinal direction with the longitudinal direction oriented in the lateral direction and the width direction oriented in the longitudinal direction. A heat exchange core (6) comprising a heat exchange pipe (4) for cooling liquid and aluminum corrugated fins (5) disposed between the heat exchange pipes (4) for cooling liquid adjacent to each other; A gap between adjacent cooling fluid heat exchange tubes (4) in which the corrugated fins (5) in the heat exchange core portion (6) are arranged is a ventilation gap (7). The heat exchange core portion (6) has its longitudinal direction directed vertically (in the direction in which the heat exchanger tubes (4) for cooling liquid are lined up) and a pair of aluminum header tanks (8) arranged at intervals in the lateral direction. It is provided between the left and right end portions of the coolant heat exchange pipe (4) and is connected to both header tanks (8).

  The air flow rate adjustment unit (3) has a size that covers the entire heat exchange core portion (6) of the radiator (2) and is provided with an adjustment plate (9) movably provided in the vertical direction, And 9) a guide member (11) for movably guiding in the vertical direction.

  At the adjustment plate (9) of the air flow rate adjustment unit (3), the longitudinal direction is in the left-right direction (longitudinal direction of the coolant heat exchange pipe (4) in the radiator (2)) and the width direction is in the vertical direction (cooling A plurality of air passage holes (12) consisting of elongated holes facing the heat exchange tubes (4) for liquid flow are formed at intervals in the vertical direction. The dimension in the width direction (vertical direction) of the air passage hole (12) of the adjustment plate (9) is the width of the ventilation gap (7) between the adjacent heat transfer tubes (4) for coolant of the radiator (2). The pitch between the adjacent air passage holes (12) of the adjustment plate (9), that is, the distance between the centers of the adjacent air passage holes (12) in the vertical direction is smaller than the dimension of the direction (vertical direction). The pitch between adjacent coolant heat exchange tubes (4), that is, the distance between the centers in the vertical direction of the adjacent coolant heat exchange tubes (4). Then, the adjustment plate (9) is moved in the vertical direction to change the area of the air passage hole (12) through which the air passes, and the corrugated fins of the heat exchange core portion (6) of the radiator (2) The amount of air that hits (5) is adjusted.

  The guide member (11) of the air flow rate adjustment unit (3) is the surface of the header tank (8) of the radiator (2) facing inward in the left-right direction (in the left header tank (8) ) Is provided on the front side of the heat exchange core portion (6) in the left side surface). The guide member (11) is formed with a guide groove (13) which is open on the heat exchange core (6) side and extends in the vertical direction, and both left and right ends of the adjusting plate (9) are of the guide member (11). The guide groove (13) is vertically movably fitted.

  The adjustment plate (9 of the air flow rate adjustment unit (3) is started when traveling of a vehicle equipped with the vehicle cooling device (1) having the above-described configuration is started and air is introduced into the engine room through the traveling wind inlet. By changing the area of the air passage hole (12) through which the air passes by moving the guide member (11) up and down along the guide member (11), the amount of air hitting the corrugated fins (5) of the radiator (2) Adjusted. That is, when it is necessary to properly cool the engine at the time of normal traveling, as shown in FIG. 3, by moving the adjusting plate (9), the entire width of the air passage hole (12) can be 2) Position in the ventilation gap (7) between adjacent coolant heat exchange tubes (4). Then, the area of the portion through which the air hits the corrugated fin (5) in the air passage hole (12) is maximized, and a large amount of air passes through the air passage hole (7) and the corrugated fin (5) of the radiator (2) Hit Therefore, the engine coolant flowing in the coolant heat exchange pipe (4) is appropriately cooled, and the engine is appropriately cooled by the engine coolant.

  On the other hand, when it is necessary to prevent the overcooling of the engine, as shown in FIG. 4, the air passage hole (12) is used as a coolant for the radiator (2) by moving the adjusting plate (9). The coolant heat exchange pipe (4) of the radiator (2) is positioned within the width of the air passage hole (12) at a position corresponding to the heat exchange pipe (4). Then, the area of the portion through which air passes in the air passage hole (12) is minimized, and a large amount of air is prevented from hitting the corrugated fins (5) of the radiator (2). Therefore, it is prevented that the engine coolant flowing in the coolant heat exchange pipe (4) is excessively cooled and the engine is excessively cooled by the engine coolant, and the fuel efficiency performance is reduced due to the engine combustion failure. Is suppressed. Moreover, it is possible to prevent an increase in the air resistance of the vehicle, and it is possible to prevent a decrease in fuel efficiency performance caused by the increase in the air resistance.

  In the embodiment described above, the coolant heat exchange pipe (4) of the radiator (2) is oriented with the longitudinal direction in the left-right direction and spaced in the vertical direction, and the header tank (8) is oriented in the vertical direction The cooling liquid heat exchange tubes (4) of the radiator (2) are directed in the vertical direction and the left and right direction while the direction is directed and the space is arranged in the left and right direction, but the present invention is not limited thereto. The header tanks (8) may be spaced apart in the direction, and the header tanks (8) may be spaced apart in the vertical direction while orienting the longitudinal direction in the lateral direction.

  5 and 6 show another embodiment of the vehicle cooling device according to the present invention.

  5 and 6, the vehicle cooling device (20) is provided immediately before the radiator (2), the condenser (21) provided in front of the radiator (2), the condenser (21), and the vehicle And an air flow control unit (3) for adjusting the flow rate of air taken toward the radiator (2) from the air intake opening formed on the front side of the condenser (21).

  The capacitor (21) is formed of a plurality of aluminum flats arranged at intervals in the vertical direction which is a direction perpendicular to the longitudinal direction with the longitudinal direction oriented in the lateral direction and the width direction oriented in the longitudinal direction. A heat exchange core portion (24) comprising a refrigerant heat exchange pipe (22) and aluminum corrugated fins (23) disposed between adjacent refrigerant heat exchange pipes (22), A gap between adjacent refrigerant heat exchange tubes (22) in which the corrugated fins (23) in the heat exchange core portion (24) are arranged is a ventilation gap (25). The heat exchange core portion (24) has a longitudinal direction directed in the vertical direction (the direction in which the heat exchange tubes (22) for refrigerants are aligned) and a pair of aluminum header tanks (26) arranged at intervals in the lateral direction. The left and right ends of the refrigerant heat exchange pipe (22) are connected to the header tank (26).

  In the case of this embodiment, the size of the adjustment plate (9) of the air flow rate adjustment unit (3) is such that it covers the entire heat exchange core portion (24) of the capacitor (21) In 9), the longitudinal direction is the horizontal direction (longitudinal direction of the refrigerant heat exchange pipe (22) of the condenser (21)) and the width direction is the vertical direction (line direction of the refrigerant heat exchange pipes (22)) A plurality of air passage holes (12) consisting of facing elongated holes are formed at intervals in the vertical direction. The dimension in the width direction (vertical direction) of the air passage hole (12) of the adjustment plate (9) is the width direction of the ventilation gap (25) between the adjacent refrigerant heat exchange tubes (22) of the condenser (21). The pitch between the adjacent air passage holes (12) of the adjustment plate (9), that is, the distance between the centers of the adjacent air passage holes (12) in the vertical direction is equal to the adjacent refrigerant of the condenser (21). It is the same as the pitch between the heat exchange tubes (22), that is, the distance between the centers in the vertical direction of the adjacent refrigerant heat exchange tubes (22). Then, by moving the adjusting plate (9) in the vertical direction, the amount of air that strikes the corrugated fins (23) of the heat exchange core portion (24) of the capacitor (21) is adjusted.

  The guide member (11) of the air flow rate adjustment unit (3) is a surface (in the left header tank (8), the right surface, the right header tank (8 ) Is provided on the front side portion of the heat exchange core portion (24) in the left side surface). The guide member (11) is formed with a guide groove (13) which is open on the heat exchange core (24) side and extends in the vertical direction, and both left and right ends of the adjusting plate (9) are of the guide member (11). The guide groove (13) is vertically movably fitted.

  The adjustment plate (9 of the air flow rate adjustment unit (3) is started when traveling of a vehicle equipped with the cooling system (20) for a vehicle described above is started and air is introduced into the engine room through the traveling wind inlet. Changes the area of the air passage hole (12) through which the air passes by moving the guide member (11) up and down along the guide member (11), and the air gap between the air passage hole (12) and the condenser (21) The amount of air that strikes the corrugated fins (5) of the radiator (2) through (25) is adjusted. That is, when it is necessary to properly cool the engine, by moving the adjusting plate (9), the entire width of the air passage hole (12) can be set to the adjacent refrigerant heat exchange tubes (22 of the condenser (21) ) Located in the ventilation gap (25) between. Then, the area of the portion through which air passes in the air passage hole (12) is maximized, and a large amount of air passes through the air passage hole (12) and the ventilation gap (25) of the condenser (21) to reach the radiator (2). Corrugated fin (5). Therefore, the engine coolant flowing in the refrigerant heat exchange pipe (22) is cooled, and the engine coolant appropriately cools the engine.

  On the other hand, when it is necessary to prevent the overcooling of the engine, the air passage hole (12) can be moved to the refrigerant heat exchange pipe (22) of the condenser (21) by moving the adjusting plate (9). At the corresponding position, the refrigerant heat exchange pipe (22) is positioned within the width of the air passage hole (12). Then, the area of the portion through which air passes in the air passage hole (12) is minimized, and a large amount of air passes through the air passage hole (12) and the ventilation gap (25) of the condenser (21). Hitting the corrugated fins (5) is blocked. Therefore, it is prevented that the engine coolant flowing in the coolant heat exchange pipe (4) is excessively cooled and the engine is excessively cooled by the engine coolant, and the fuel efficiency performance is reduced due to the engine combustion failure. Is suppressed. Moreover, it is possible to prevent an increase in the air resistance of the vehicle, and it is possible to prevent a decrease in fuel efficiency performance caused by the increase in the air resistance.

  The vehicle cooling device according to the present invention is suitably used to improve the fuel efficiency of the vehicle.

(1) (20): Vehicle cooling system
(2): Radiator
(3): Air flow rate adjustment unit
(4): Heat exchange pipe for coolant
(5): Corrugated fin
(6): Heat exchange core
(7): Ventilation gap
(8): Header tank
(9): Adjustment plate
(11): Guide member
(12): Air passage hole
(13): Guide groove
(21): Capacitor
(22): Heat exchange pipe for refrigerant
(23): Corrugated fin
(24): Heat exchange core
(25): Ventilation gap
(26): Header tank

Claims (6)

For a vehicle comprising a radiator, and an air flow rate adjusting unit provided in front of the radiator and adjusting an air flow rate introduced toward the radiator from an air intake opening formed on the front side of the radiator in the vehicle A cooling device,
The radiator has a plurality of cooling fluid heat exchange tubes arranged at intervals in a direction perpendicular to the front-rear direction with the longitudinal direction oriented in the same direction, and between adjacent cooling fluid heat exchange tubes. An adjusting plate having a heat exchange core portion including fins disposed in the formed ventilation gap, the air flow rate adjusting portion being formed with a plurality of air passage holes and movable in a surface direction; The guide plate movably guides the adjusting plate, and the adjusting plate is moved in the surface direction along the guide member, so that the amount of air passing through the air passage hole and hitting the fins of the heat exchange core of the radiator is adjusted. Vehicle cooling system being made to be done. The air flow rate adjusting portion is provided with a pair of guide members arranged at an interval in a state in which the longitudinal direction is in the same direction, and the end of the adjusting plate is movably fitted in the guide member. The vehicle cooling device according to claim 1, wherein a guide groove is formed. The air flow rate adjusting unit is disposed immediately in front of the radiator, and the adjusting plate of the air flow rate adjusting unit is provided movably in the direction in which the heat exchanger tubes for coolant are arranged, and the guide member is heat exchange for the coolant The adjustment plate has a length in which the longitudinal direction is directed to the longitudinal direction of the coolant heat exchange tube of the radiator and the width direction is directed to the direction of alignment of the heat exchanger tubes for coolant. A plurality of air passage holes composed of holes are formed at intervals in the arranging direction of the heat exchanger tubes for cooling fluid, and the dimension in the width direction of the air passage holes of the adjusting plate is the heat exchanger tube for cooling fluid adjacent to the radiator The pitch between the adjacent heat transfer tubes for the coolant and the pitch between the adjacent air passage holes of the adjusting plate are equal to or less than the dimension in the width direction of the ventilation gap between the two. The vehicle cooling device according to 1 or 2. The heat exchange core portion of the radiator is provided between a pair of header tanks disposed at a distance from each other with the longitudinal direction directed to the direction in which the heat exchange tubes for coolant are aligned, and cooling of the heat exchange core portion The vehicle cooling device according to claim 3, wherein both ends of the liquid heat exchange pipe are connected to the two header tanks, and the guide member of the air flow rate adjustment unit is provided in the header tank. A condenser is disposed in front of the radiator and an air flow rate adjustment unit is disposed immediately in front of the condenser, and the condenser is spaced in a direction perpendicular to the front-rear direction with the longitudinal direction oriented in the same direction. Adjustment of the air flow rate adjusting portion having a heat exchange core portion comprising a plurality of refrigerant heat exchange tubes disposed and fins disposed in a ventilation gap formed between adjacent refrigerant heat exchange tubes. The plate is movably provided in the direction in which the refrigerant heat exchange tubes are arranged, and the guide member guides the adjusting plate in the direction in which the refrigerant heat exchange tubes are arranged. A plurality of air passage holes formed by elongated holes whose longitudinal direction faces the longitudinal direction of the refrigerant heat exchange tubes and whose width direction faces the lateral direction of the refrigerant heat exchange tubes are formed at intervals in the linear direction of the refrigerant heat exchange tubes Of the adjustment plate The dimension in the width direction of the air passage hole is equal to or less than the dimension in the width direction of the ventilation gap between the adjacent refrigerant heat exchange pipes of the condenser, and the pitch between the adjacent refrigerant heat exchange pipes of the condenser and the adjustment plate The vehicle cooling device according to claim 1 or 2, wherein the pitch between adjacent air passage holes is the same. The heat exchange core portion of the condenser is provided between a pair of header tanks disposed at a distance from each other in a state where the longitudinal direction is directed to the alignment direction of the refrigerant heat exchange tubes, and for the refrigerant of the heat exchange core portion The vehicle cooling device according to claim 5, wherein both ends of the heat exchange pipe are connected to both header tanks, and the guide member of the air flow rate adjustment unit is provided in the header tank of the condenser.

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