WO2017090395A1 - Dispositif de refroidissement pour véhicules - Google Patents

Dispositif de refroidissement pour véhicules Download PDF

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Publication number
WO2017090395A1
WO2017090395A1 PCT/JP2016/082538 JP2016082538W WO2017090395A1 WO 2017090395 A1 WO2017090395 A1 WO 2017090395A1 JP 2016082538 W JP2016082538 W JP 2016082538W WO 2017090395 A1 WO2017090395 A1 WO 2017090395A1
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WO
WIPO (PCT)
Prior art keywords
core
shroud
heat exchanger
fan
fan cover
Prior art date
Application number
PCT/JP2016/082538
Other languages
English (en)
Japanese (ja)
Inventor
健治 大隅
聖統 清松
Original Assignee
いすゞ自動車株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by いすゞ自動車株式会社 filed Critical いすゞ自動車株式会社
Publication of WO2017090395A1 publication Critical patent/WO2017090395A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
    • B60K11/04—Arrangement or mounting of radiators, radiator shutters, or radiator blinds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/20—Floors or bottom sub-units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/10—Guiding or ducting cooling-air, to, or from, liquid-to-air heat exchangers

Definitions

  • the present disclosure relates to a vehicle cooling device including a heat exchanger.
  • a vehicular cooling device includes a radiator that cools engine cooling water with traveling wind, a fan that is provided behind the radiator, and a fan cover that surrounds an outer diameter portion of the fan.
  • a shroud is provided between the radiator and the fan cover to define a ventilation space for guiding the air that has passed through the radiator core to the fan.
  • the present disclosure has been made in view of the above circumstances, and an object thereof is to provide a vehicular cooling device that can smoothly guide air that has passed through the lower end of a radiator core to a fan.
  • a vehicular cooling device includes a heat exchanger that cools a refrigerant by traveling wind, a fan provided behind the heat exchanger, a fan cover that surrounds an outer diameter portion of the fan, A shroud provided between the heat exchanger and the fan cover and defining a ventilation space for guiding the air that has passed through the core of the heat exchanger to the fan, and a front end and an upper end of the fan cover Is disposed at a height position equivalent to the upper end of the rear surface of the core, the front end and the lower end of the fan cover are disposed above the lower end of the rear surface of the core, and the lower end of the rear surface of the core is predetermined from the upper end of the rear surface.
  • the heat exchanger is inclined so as to be positioned at a distance forward, and a curved guide portion that smoothly connects the lower end portion of the rear surface of the core and the lower end portion of the front end of the fan cover to the lower end portion of the shroud.
  • the front end of the shroud is attached to the heat exchanger along the outer peripheral edge of the core, and the rear end of the shroud is connected to the front end of the fan cover.
  • the vehicle cooling device is provided in a cab-over type vehicle, and an upper end portion of the heat exchanger is disposed immediately after a floor panel of the cab of the vehicle.
  • the fan cover has a first length in the front-rear direction, and the distance in the front-rear direction between the front end of the upper end portion of the shroud and the rear end of the upper end portion of the shroud is the first length.
  • the distance in the front-rear direction between the front end of the lower end portion of the shroud and the rear end of the lower end portion of the shroud is longer than the first length.
  • the vehicle cooling device exhibits an excellent effect that the air that has passed through the lower end of the core of the radiator can be smoothly guided to the fan.
  • FIG. 1 is an overall configuration diagram of a vehicular cooling device according to an embodiment of the present disclosure.
  • FIG. 2 is a side view of the vehicle cooling device of FIG. 3 is a cross-sectional view taken along the line III-III in FIG.
  • FIG. 4 is an overall configuration diagram of a conventional vehicle cooling device.
  • 5 is a cross-sectional view taken along the line VV of FIG.
  • FIG. 6 is a side view of a vehicle cooling device according to another embodiment of the present disclosure.
  • front, rear, left and right in the embodiments described later are based on the traveling direction of the vehicle.
  • the front is the front in the vehicle direction
  • the rear is the rear in the vehicle direction.
  • the vehicle (not shown) is a cab over type truck.
  • FIG. 1 shows the overall configuration of the vehicular cooling device 1 according to the present embodiment from an oblique front
  • FIG. 2 shows the left side surface of the vehicular cooling device 1.
  • FIG. 3 shows a III-III cross section of FIG.
  • reference numeral 10 indicates a pair of left and right side members extending in the vehicle front-rear direction
  • reference numeral 11 indicates a cross member spanned in the vehicle width direction at the front ends of the left and right side members 10.
  • the left and right side members 10 are made of channel steel having a U-shaped cross section, and are arranged in parallel so that the grooves face each other.
  • the cross member 11 is also made of channel steel having a U-shaped cross section, and a plurality of vent holes 12 are formed on the front surface portion.
  • Numeral E indicates an engine provided below the rear portion of the cab (not shown). Inside the engine E, an engine internal water channel (not shown) through which engine cooling water flows is provided.
  • the vehicle cooling device 1 is disposed between the left and right side members 10 and between the cross member 11 and the engine E.
  • the vehicular cooling device 1 surrounds a radiator (heat exchanger) 20 that cools engine coolant (refrigerant) with traveling wind, a fan 30 provided behind the radiator 20, and an outer diameter portion of the fan 30. And a fan cover 40.
  • a shroud 50 is provided between the radiator 20 and the fan cover 40.
  • the radiator 20 includes a core 21, an inflow side tank 22 provided at the upper end portion of the core 21 in the vehicle width direction, and a discharge side provided at the lower end portion of the core 21 in the vehicle width direction.
  • the radiator 20 is disposed so as to be inclined (rearly inclined) with respect to the vertical direction so that the lower end of the rear surface of the core 21 is positioned a predetermined distance ahead of the upper end of the rear surface.
  • the predetermined distance here will be described later.
  • the core 21 is formed in the shape of a square plate as a whole, and a plurality of tubes (not shown) for circulating engine cooling water from the inflow side tank 22 to the discharge side tank 23 and a plurality of heat radiations provided between adjacent tubes. Fins (not shown).
  • the inflow side tank 22 and the engine E are connected by a first hose 25 that sends engine cooling water from the water passage in the engine to the radiator 20. Moreover, the discharge side tank 23 and the engine E are connected by the 2nd hose 26 which returns an engine cooling water from the radiator 20 to an engine internal water channel.
  • an inlet 27 is provided that is connected to the first hose 25 and allows the engine coolant to flow into the inflow side tank 22.
  • an outlet 28 for discharging the engine coolant from the discharge side tank 23 is provided on the rear surface of the discharge side tank 23, connected to the second hose 26.
  • the left and right plates 24 have a first bracket 24a provided on the outer side surface in the vehicle width direction and a second bracket 24b provided on the front surface of the lower end.
  • the first bracket 24 a is connected to the upper end surface of the side member 10.
  • the second bracket 24 b is connected to a coupling mechanism 11 a extending rearward from the lower end surface of the cross member 11.
  • the fan 30 is an axial flow fan or a diagonal flow fan, and includes a rotary shaft 31 extending in the front-rear direction and a blade member 32 connected to the front end of the rotary shaft 31 as shown in FIG.
  • the rotary shaft 31 is connected to, for example, a crankshaft (not shown) of the engine E, and is rotationally driven by the driving force of the engine E.
  • the fan cover 40 is a ring-shaped member that opens in the front-rear direction.
  • the front end and the upper end thereof are disposed at a height position equivalent to the upper end of the rear surface of the core 21 of the radiator 20, and the front end and the lower end are higher than the lower end of the rear surface of the core 21. Placed in position.
  • the shroud 50 is a member that partitions and forms a ventilation space for guiding the air that has passed through the core 21 of the radiator 20 to the fan 30.
  • the front end of the shroud 50 is attached to the rear surface of the radiator 20 along the square outer peripheral edge 21 e of the core 21, and the rear end of the shroud 50 is connected to the circular front end of the fan cover 40.
  • the lower end portion 50a of the shroud 50 is disposed at a position where the rear end is higher than the front end. Moreover, since the space
  • the radiator 20 is arranged to be inclined with respect to the vertical direction so that the lower end of the rear surface of the core 21 is positioned a predetermined distance ahead of the upper end of the rear surface. Therefore, the lower end portion 50a of the shroud 50 is formed longer in the front-rear direction by the predetermined distance.
  • the lower end portion of the core 21 and the lower end portion of the front end of the fan cover 40 are smoothly connected to the lower end portion 50a so that the air that has passed through the lower end portion of the core 21 does not substantially collide with the lower end portion 50a.
  • a curved guide 51 is provided.
  • the predetermined distance referred to here is a distance at which the air that has passed through the lower end of the core 21 is smoothly guided by the guide 51 without substantially colliding with the lower end 50a of the shroud 50. means.
  • substantially collision means that the air that has passed through the lower end of the core 21 collides with the inner wall surface of the shroud 50 substantially perpendicularly or remarkably, so that the air smoothly It refers to the state where the slow flow is inhibited.
  • FIG. 4 is a diagram showing the entire configuration of the conventional vehicle cooling device 1 from an oblique front
  • FIG. 5 is a cross-sectional view taken along line VV of FIG.
  • the arrow F shows the flow of the air which passed the lower end part of the core of a radiator.
  • symbol P shows the floor panel arrange
  • symbol Q shows the standing part formed in the intermediate part of the front-back direction of the floor panel P.
  • the radiator 20 is inclined with respect to the vertical direction so that the lower end of the rear surface of the core 21 is positioned a predetermined distance ahead of the upper end of the rear surface. Therefore, in the shroud 50, the lower end portion 50a can be formed longer in the front-rear direction by the predetermined distance.
  • the curved guide portion 51 that smoothly connects the lower end of the rear surface of the core 21 and the lower end of the front end of the fan cover 40 to the lower end 50a. Can be provided.
  • the flow of air at the lower end 50a provided with the guide 51 will be considered in comparison with a conventional example that does not have the guide 51.
  • the rear end of the lower end 50 a ′ of the shroud 50 ′ is higher than the front end, as in the present embodiment,
  • the upper end portion 50b ′ of the shroud 50 ′ is formed short in the front-rear direction.
  • the radiator 20 ′ is slightly inclined to the rear with respect to the vertical direction, but is arranged so that the lower end of the rear surface of the core 21 ′ is positioned in front of the upper end of the rear surface by a predetermined distance in the above-described sense.
  • the lower end 50a 'of the shroud 50' is formed to be short like the upper end 50b '.
  • the curved guide portion 51 as in the present embodiment cannot be provided on the lower end portion 50a 'formed in such a short manner. Therefore, the shape of the lower end portion 50a 'is a shape (face-to-face shape) that rapidly bends upward as it goes rearward. Therefore, a facing portion 51 ′ that faces the core 21 ′ of the radiator 20 ′ is formed at the lower end portion 50 a ′, and a dead space is formed in front of the facing portion 51 ′.
  • the smooth flow of the air F is hindered. Further, the air after the collision tends to stay in the dead space. As a result, the amount of air passing through the core 21 'decreases, the amount of air passing through the core 21' from the fan 30 decreases, the cooling performance of the radiator 20 'decreases, and problems such as deterioration of the fuel consumption of the engine may occur. .
  • the air F that has passed through the lower end of the core 21 of the radiator 20 substantially collides with the lower end 50a of the shroud 50. It is possible to smoothly lead to the fan 30 without any problem.
  • a curved guide portion can be provided at the lower end portion 50 a ′ of the shroud 50 ′ as in the present embodiment.
  • the radiator 20 ′ is restricted by the floor panel P. 'The whole thing cannot be moved forward.
  • the position of the upper end of the radiator 20 is the same, and the length of the lower end 50a in the front-rear direction is increased by rotating at the upper end fulcrum so that only the lower end is moved forward, and
  • the above-mentioned problem is solved by reducing the height difference at the lower end of the shroud.
  • this embodiment is advantageous when the entire radiator cannot be moved forward.
  • radiator 20 is used as a heat exchanger, but as shown in FIG. 6, a configuration in which an intercooler 70 is disposed on the front surface of the radiator 20 may be used.
  • the present invention has an effect that air that has passed through the lower end of the core of the radiator can be smoothly guided to the fan, and is useful for a vehicle cooling device or the like.
  • Vehicle cooling device 20 Radiator (heat exchanger) 21 core 30 fan 40 fan cover 50 shroud 50a lower end 51 guide

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

La présente invention concerne un dispositif (1) de refroidissement pour véhicules, qui comprend : un échangeur (20) de chaleur qui refroidit un fluide frigorigène au moyen d'un courant d'air généré par un mouvement ; un ventilateur (30) qui est disposé à l'arrière de l'échangeur (20) de chaleur ; un carter (40) de ventilateur ; et une enveloppe (50) qui guide, vers le ventilateur, l'air (F) passant à travers un noyau (21) de l'échangeur (20) de chaleur, l'extrémité inférieure avant du carter (40) de ventilateur étant disposée au niveau d'une position au-dessus de l'extrémité inférieure d'une surface arrière du noyau (21), et l'échangeur (20) de chaleur étant disposé en biais de sorte que l'extrémité inférieure de la surface arrière du noyau (21) soit positionnée devant l'extrémité supérieure de sa surface arrière à une distance prescrite, et une partie (51) guidage ayant une forme de surface incurvée de façon à permettre que la partie d'extrémité inférieure de la surface arrière du noyau (21) soit reliée en douceur à la partie d'extrémité inférieure avant du carter (40) de ventilateur est disposée sur une section (50a) d'extrémité inférieure de l'enveloppe (50).
PCT/JP2016/082538 2015-11-27 2016-11-02 Dispositif de refroidissement pour véhicules WO2017090395A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015231829A JP2017095049A (ja) 2015-11-27 2015-11-27 車両用冷却装置
JP2015-231829 2015-11-27

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Publication Number Publication Date
WO2017090395A1 true WO2017090395A1 (fr) 2017-06-01

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WO (1) WO2017090395A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112689576A (zh) * 2018-09-13 2021-04-20 五十铃自动车株式会社 散热器结构

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7100822B2 (ja) * 2018-02-01 2022-07-14 いすゞ自動車株式会社 車両の前部構造
JP2022146213A (ja) * 2021-03-22 2022-10-05 いすゞ自動車株式会社 車両

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57188723A (en) * 1981-05-15 1982-11-19 Toyota Central Res & Dev Lab Inc Radiator cooling unit
JPS60115717U (ja) * 1984-01-17 1985-08-05 ダイハツ工業株式会社 自動車の物入れ装置
JPH09188127A (ja) * 1996-01-10 1997-07-22 Hino Motors Ltd 車両用ヒータの外気取入れ構造
US6189492B1 (en) * 1999-04-07 2001-02-20 Custom Molder, Inc. Automotive fan shroud and method of making
JP2001207848A (ja) * 2000-01-27 2001-08-03 Komatsu Ltd 冷却ファンのシュラウドの構造
JP2006132379A (ja) * 2004-11-04 2006-05-25 Mitsubishi Fuso Truck & Bus Corp ラジエータ・シュラウド構造
US20140182956A1 (en) * 2012-11-15 2014-07-03 Cnh America Llc Air Filter Arrangement for a Work Vehicle
JP2015105051A (ja) * 2013-11-30 2015-06-08 ダイハツ工業株式会社 車両用冷却装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57188723A (en) * 1981-05-15 1982-11-19 Toyota Central Res & Dev Lab Inc Radiator cooling unit
JPS60115717U (ja) * 1984-01-17 1985-08-05 ダイハツ工業株式会社 自動車の物入れ装置
JPH09188127A (ja) * 1996-01-10 1997-07-22 Hino Motors Ltd 車両用ヒータの外気取入れ構造
US6189492B1 (en) * 1999-04-07 2001-02-20 Custom Molder, Inc. Automotive fan shroud and method of making
JP2001207848A (ja) * 2000-01-27 2001-08-03 Komatsu Ltd 冷却ファンのシュラウドの構造
JP2006132379A (ja) * 2004-11-04 2006-05-25 Mitsubishi Fuso Truck & Bus Corp ラジエータ・シュラウド構造
US20140182956A1 (en) * 2012-11-15 2014-07-03 Cnh America Llc Air Filter Arrangement for a Work Vehicle
JP2015105051A (ja) * 2013-11-30 2015-06-08 ダイハツ工業株式会社 車両用冷却装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112689576A (zh) * 2018-09-13 2021-04-20 五十铃自动车株式会社 散热器结构

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