CN116729495A - Front structure of vehicle body - Google Patents

Front structure of vehicle body Download PDF

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Publication number
CN116729495A
CN116729495A CN202310143608.9A CN202310143608A CN116729495A CN 116729495 A CN116729495 A CN 116729495A CN 202310143608 A CN202310143608 A CN 202310143608A CN 116729495 A CN116729495 A CN 116729495A
Authority
CN
China
Prior art keywords
heat exchanger
vehicle body
side header
air guide
header
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202310143608.9A
Other languages
Chinese (zh)
Inventor
川部桂介
深谷昌弘
小岛和也
小泽信二郎
石井大
原田淳也
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Publication of CN116729495A publication Critical patent/CN116729495A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • B62D25/08—Front or rear portions
    • B62D25/082—Engine compartments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00457—Ventilation unit, e.g. combined with a radiator
    • 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
    • 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
    • B60K11/08—Air inlets for cooling; Shutters or blinds therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/06—Sealing strips
    • 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
    • B62D25/08—Front or rear portions
    • B62D25/082—Engine compartments
    • B62D25/084—Radiator supports

Landscapes

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

Abstract

The invention provides a vehicle body front structure. In a vehicle body front structure, the cooling efficiency of a heat exchanger is improved. A vehicle body front structure (1) is provided with: a heat exchanger assembly (10) comprising at least 1 heat exchanger (13, 14, 15); a protector (35) which is provided on the front surface of the lower part of the heat exchanger assembly and has ventilation; a pair of left and right air guide members (40) provided in front of left and right side edges of the heat exchanger assembly, extending up and down and toward the front; a first sealing member (61) that seals a gap between each air guide member and the protector; and a second sealing member (62) that seals the gap between each air guide member and the heat exchanger assembly.

Description

Front structure of vehicle body
Technical Field
The present invention relates to a vehicle body front structure.
Background
In recent years, research and development have been conducted to ensure sustainable and advanced energy use, which contributes to the improvement of energy efficiency, in order to make more people feel suitable and reliable. Patent document 1 discloses a vehicle body front portion structure as follows: the air conditioner includes a rectangular panel body supported by a vehicle body frame, a radiator and a condenser of the air conditioner supported on the inner side of the panel body, and an air guide member extending forward from the panel body. The wind guide member guides the traveling wind to the radiator and the condenser.
Prior art literature
Patent document 1: japanese patent laid-open No. 11-129935
Disclosure of Invention
Problems to be solved by the invention
However, in the vehicle body front portion structure of patent document 1, a gap exists between the panel main body and the radiator and the condenser. Therefore, the traveling wind guided by the wind guide member flows through the gap between the panel body and the radiator and the condenser.
In view of the above background, an object of the present invention is to improve the cooling efficiency of a heat exchanger in a vehicle body front structure. Further, the present invention aims to improve the efficiency of energy by improving the cooling efficiency of a heat exchanger.
Means for solving the problems
In order to solve the above problem, one embodiment of the present invention is a vehicle body front structure (1) comprising: a heat exchanger assembly (10) comprising at least 1 heat exchanger (13, 14, 15); a protector (35) which is provided on the front surface of the lower part of the heat exchanger assembly and has ventilation properties; a pair of left and right air guide members (40) provided in front of left and right side edges of the heat exchanger assembly, extending up and down and extending forward; a first sealing member (61) that seals a gap between each of the air guide members and the protector; and a second sealing member (62) that seals a gap between each of the air guide members and the heat exchanger assembly.
According to this aspect, traveling wind can be efficiently guided to the heat exchanger assembly. In this way, in the vehicle body front structure, the cooling efficiency of the heat exchanger can be improved. In addition, by improving the cooling efficiency of the heat exchanger, an improvement in energy efficiency can be achieved.
In the above aspect, each of the air guide members may include: a lower contact portion (50) that contacts the protector via the first seal member; and an upper contact portion (51) that contacts the heat exchanger assembly via the second seal member, the upper contact portion being disposed so as to be offset rearward with respect to the lower contact portion.
According to this aspect, the clearance between the heat exchanger assembly and the protector and the air guide member can be reduced.
In the above aspect, the separator may further include a separator (2) having: a pair of right and left stringers (3) extending up and down; an upper member (4) extending from left to right and connected to the upper ends of the stringers; and a lower member (5) extending in the left-right direction and connected to the lower ends of the stringers, wherein the heat exchanger assembly is disposed inside the partition plate, and the left-right air guide members have fastening portions (42) fastened to the corresponding stringers in the left-right direction.
According to this aspect, the load applied to the air guide member from the front can be transmitted to the partition plate, and it is difficult to apply a load to the heat exchanger assembly.
In the above aspect, it is preferable that the air guide member has a body portion (41) extending in the front-rear direction, and the fastening portion is formed in a plate shape facing in the front-rear direction and is provided at the rear end of the body portion.
According to this aspect, the load applied to the air guide member from the front is efficiently transmitted to the partition plate via the fastening portion.
In the above aspect, at least 1 of the heat exchangers may include: a first heat exchanger (13); a second heat exchanger (14) disposed in front of the upper part of the first heat exchanger; and a third heat exchanger (15) disposed in front of the lower portion of the first heat exchanger, wherein the protector is disposed in front of the third heat exchanger.
According to this aspect, the protector can protect the heat exchanger assembly from foreign matter flying from the front and lower sides of the heat exchanger assembly.
In the above aspect, a gap between the left and right sides of the first heat exchanger and the left and right sides of the second heat exchanger may be sealed by a third sealing member 63.
According to this aspect, the traveling wind can be prevented from leaking from the gap between the first heat exchanger and the second heat exchanger.
In the above aspect, the first heat exchanger, the second heat exchanger, and the third heat exchanger may each include an upstream side header (20, 25, 30), a downstream side header (21, 26, 31), and a plurality of radiating pipes (22, 27, 32) connecting the upstream side header and the downstream side header, the upstream side header and the downstream side header may extend vertically, respectively, and may be disposed at left and right sides with a gap therebetween, the plurality of radiating pipes may extend laterally, and the upper contact portions may contact the upstream side header or the downstream side header of the second heat exchanger via the second seal member, respectively.
According to this aspect, the traveling wind can be efficiently guided to the radiating pipe.
Effects of the invention
According to the above configuration, in the vehicle body front structure, the cooling efficiency of the heat exchanger can be improved. In addition, by improving the cooling efficiency of the heat exchanger, an improvement in energy efficiency can be achieved.
Drawings
Fig. 1 is a perspective view of a vehicle body front structure.
Fig. 2 is a front view of a vehicle body front structure.
Fig. 3 is a schematic cross-sectional view of an upper portion of a vehicle body front structure.
Fig. 4 is a schematic cross-sectional view of a lower portion of a vehicle body front structure.
Fig. 5 is an enlarged cross-sectional view showing the lower left end of the front structure of the vehicle body.
Fig. 6 is a side view of the left air guide member as viewed from the right side.
Description of the reference numerals
1 vehicle body front portion Structure
2 partition board (bulk head)
3 longitudinal beam
4 upper member
5 lower member
10 Heat exchanger Assembly
13 first heat exchanger (Heat exchanger)
14 second Heat exchanger (Heat exchanger)
15 third Heat exchanger (Heat exchanger)
20 first upstream side header (upstream side header)
21 first downstream side header (downstream side header)
22 first radiating pipe (radiating pipe)
25 a second upstream side header (upstream side header)
26 second downstream side header (downstream side header)
27 second radiating pipe (radiating pipe)
30 third upstream side header (upstream side header)
31 a third downstream side header (downstream side header)
32 third radiating pipe (radiating pipe)
35 protective piece
40 air guiding component
41 main body part
42 fastening portion
50 lower contact portion
51 upper contact portion
61 first sealing member
62 second sealing member
63 third sealing member
Detailed Description
Hereinafter, an embodiment of the vehicle body front portion structure 1 according to the present invention will be described with reference to the drawings. In the present embodiment, the vehicle body front structure 1 constitutes a front portion of a vehicle body of a 4-wheeled motor vehicle. The direction for explanation is based on the driver of the vehicle to which the vehicle body front portion structure 1 of the present invention is applied.
As shown in fig. 1 and 2, the vehicle body front structure 1 includes a bulkhead 2 and a heat exchanger assembly 10. The bulkhead 2 is disposed at the front end portion of the vehicle body front structure 1 and has a substantially rectangular shape. The bulkhead 2 includes a pair of right and left side members 3 extending vertically, upper members 4 connected to the upper ends of the side members 3, and lower members 5 connected to the lower ends of the side members 3. The upper member 4 is disposed on the rear side with respect to the lower member 5, and the separator 2 is in a state of being tilted backward.
An upper air guide member 6 extending leftward and rightward and forwardly is provided at a lower front end of the upper member 4. The upper air guide member 6 guides traveling air from the front of the vehicle toward the heat exchanger assembly 10. The upper air guide member 6 has a flange portion 7 and a plate portion 8 connected to the upper member 4. The flange portion 7 has a front-rear facing surface, and is connected to the upper member 4 at a rear surface. The plate portion 8 is connected to the lower end of the flange portion 7 and extends forward.
A lower air guide 11 is provided at the lower front end of the lower member 5. The lower air guide member 11 guides traveling air from the front of the vehicle toward the heat exchanger assembly 10. The lower air guide 11 extends laterally and is inclined in the forward direction.
The heat exchanger assembly 10 is disposed inside the separator 2. The heat exchanger assembly 10 includes heat exchangers 13, 14, 15. The heat exchangers 13, 14, 15 may be of the cross flow type. The heat exchangers 13, 14, 15 have a first heat exchanger 13, a second heat exchanger 14 and a third heat exchanger 15. The second heat exchanger 14 is disposed in front of the upper portion of the first heat exchanger 13. The third heat exchanger 15 is disposed in front of the lower portion of the first heat exchanger 13. A cooling fan 16 having a rotation axis extending in the front-rear direction is provided behind the first heat exchanger 13. The cooling fan 16 rotates to supply air to the heat exchangers 13, 14, and 15, thereby cooling the heat exchangers 13, 14, and 15.
The first heat exchanger 13 functions as a radiator for an internal combustion engine. The first heat exchanger 13 is connected to a water jacket provided in the engine main body, the supercharger, and the like through a pipe. The first heat exchanger 13 is a device for cooling water for an internal combustion engine (hereinafter referred to as first cooling water) circulated through a pipe. The cooling water is circulated through a heat source (for example, a cylinder head, etc.) constituting the internal combustion engine to raise the temperature.
As shown in fig. 3 and 4, the first heat exchanger 13 has a first upstream side header 20, a first downstream side header 21, and a plurality of first radiating pipes 22. The first upstream header 20 is disposed on the left and right sides with a space from the first downstream header 21. The plurality of first radiating pipes 22 connect the first upstream side header 20 with the first downstream side header 21. A plurality of fins (not shown) are disposed between the plurality of first radiating pipes 22. The cooling water flows from the first upstream side header 20 to the first downstream side header 21 through the plurality of first radiating pipes 22.
The first upstream side header 20 distributes cooling water flowing in from the internal combustion engine. The first upstream side header 20 is a hollow member extending up and down. The first upstream side header 20 is formed of metal. The first upstream side header 20 is provided at the left side portion of the first heat exchanger 13. The cooling water stored in the first upstream header 20 flows into the plurality of first radiating pipes 22.
The plurality of first radiating pipes 22 flow the cooling water from the first upstream side header 20 to the first downstream side header 21. The first radiating pipes 22 are hollow members extending in the left-right direction, respectively. The first radiating pipes 22 may be formed to be thinner in thickness, respectively. The plurality of first radiating pipes 22 may be formed of an aluminum alloy having high thermal conductivity. The heat of the cooling water flowing in the plurality of first radiating pipes 22 is transferred to the plurality of radiating fins and released into the air. Thereby, the cooling water is cooled. The cooling water flowing out of the plurality of first radiating pipes 22 flows into the first downstream side header 21.
The first downstream side header 21 is a hollow member extending up and down. The first downstream side header 21 is formed of metal. The first downstream side header 21 is provided at the right side portion of the first heat exchanger 13. The cooled cooling water stored in the first downstream header 21 flows to the engine main body side through a pipe.
The second heat exchanger 14 functions as a condenser of the air conditioner. The second heat exchanger 14 is connected to an in-vehicle air conditioner by piping. The second heat exchanger 14 is a device for cooling the refrigerant circulating through the pipe. The refrigerant is compressed by the air compressor to rise in temperature.
The second heat exchanger 14 has a second upstream side header 25, a second downstream side header 26, and a plurality of second radiating pipes 27. The second upstream header 25 is disposed on the left and right sides with a gap from the second downstream header 26. The plurality of second radiating pipes 27 connect the second upstream side header 25 with the second downstream side header 26. A plurality of fins (not shown) are disposed between the plurality of second heat radiating pipes 27.
The refrigerant flows from the second upstream side header 25 to the second downstream side header 26 through the plurality of second radiating pipes 27. The configuration of the second heat exchanger 14 for cooling the refrigerant is the same as the configuration of the first heat exchanger 13 for cooling the first cooling water, and therefore, the description thereof will be omitted.
The third heat exchanger 15 functions as a radiator for the hybrid system. The third heat exchanger 15 is connected to a water jacket provided in an electronic control device, a motor, or the like through a pipe. The third heat exchanger 15 is a device for cooling water for a hybrid system (hereinafter referred to as third cooling water) that circulates through a pipe. The third cooling water is circulated through electrical components (e.g., a motor, etc.) constituting the hybrid system to raise the temperature.
The third heat exchanger 15 has a third upstream side header 30, a third downstream side header 31, and a plurality of third radiating pipes 32. The third upstream header 30 is disposed on the left and right sides with a gap from the third downstream header 31. The plurality of third radiating pipes 32 connect the third upstream side header 30 with the third downstream side header 31. A plurality of fins (not shown) are disposed between the plurality of third radiating pipes 32.
The third cooling water flows from the third upstream side header 30 to the third downstream side header 31 through the plurality of third radiating pipes 32. The third heat exchanger 15 cools the third cooling water in the same manner as the first heat exchanger 13 cools the first cooling water, and therefore, the description thereof will be omitted.
The electric components constituting the hybrid system have a lower allowable heat-resistant temperature than the heat source constituting the internal combustion engine. Therefore, the third cooling water needs to be cooled to a lower temperature than the first cooling water. Therefore, the length of the third radiating pipe 32 may be longer than the length of the first radiating pipe 22.
As shown in fig. 1 and 2, a protector 35 is disposed in front of the third heat exchanger 15. The protector 35 is a member for protecting the heat exchangers 13, 14, 15 from foreign matter (e.g., flying stones or the like) flying from the front and lower sides of the vehicle. The protector 35 is disposed on the lower air guide 11. The protector 35 may be formed of a resin material in a rectangular shape. The protector 35 has a plurality of ventilation holes 36 penetrating in the front-rear direction. Thereby, the protector 35 has air permeability. The plurality of ventilation holes 36 may be provided in a lattice-like manner when viewed from the front. A pair of left and right air guide members 40 are provided on both left and right sides of the protector 35.
A pair of left and right air guide members 40 are provided in front of left and right side edges of the heat exchanger assembly 10. The pair of left and right air guide members 40 guide traveling air from the front of the vehicle toward the heat exchanger assembly 10. The pair of left and right air guide members 40 are disposed symmetrically with respect to the vehicle longitudinal center axis. The air guide member 40 provided on the left side will be described below. The explanation of the right air guide 40 is omitted.
The air guide member 40 is formed of a resin material. The air guide member 40 includes a main body 41, a fastening portion 42, and an abutting portion 43.
As shown in fig. 1 and 6, the main body 41 extends up and down and forward. The main body 41 includes a lower main body 44 and an upper main body 45 disposed above the lower main body 44. The lower body portion 44 constitutes a lower portion of the body portion 41. The upper body 45 constitutes an upper portion of the body 41. The lower portion of the lower body 44 is inclined upward toward the front. The upper portion of the upper body 45 is inclined forward and downward. A recess is formed between the lower body portion 44 and the upper body portion 45.
As shown in fig. 3 to 5, the front portion of the main body 41 is offset rightward with respect to the rear portion of the main body 41. A fastening portion 42 is provided on the left side surface of the rear portion of the main body portion 41. An abutment portion 43 is provided on the right side surface of the rear portion of the main body portion 41.
The fastening portion 42 extends leftward from the left side surface of the rear portion of the main body portion 41. The fastening portion 42 is formed in a plate shape facing front and rear. The rear surface of the fastening portion 42 is fastened to the left side member 3. As shown in fig. 1, the fastening portion 42 has an upper fastening portion 48 fastened to an upper portion of the side member 3 and a lower fastening portion 49 fastened to a lower portion of the side member 3. The upper fastening portion 48 and the lower fastening portion 49 are fastened to the side member 3, whereby the air guide member 40 is connected to the bulkhead 2.
As shown in fig. 2 and 6, the abutment portion 43 extends rightward from the right side surface of the rear portion of the main body portion 41. The abutting portion 43 has a lower abutting portion 50 and an upper abutting portion 51 connected to the lower abutting portion 50.
The lower abutment 50 constitutes a lower portion of the abutment 43. The lower contact portion 50 is disposed at a position corresponding to the lower body portion 44 in the up-down direction. The lower abutment 50 has a front-rear facing surface. The lower contact portion 50 is disposed at a distance from the protector 35.
The upper abutment portion 51 constitutes an upper portion of the abutment portion 43. The upper contact portion 51 is disposed at a position corresponding to the upper body portion 45 in the up-down direction. The upper abutment portion 51 has a front-rear facing surface. The upper contact portion 51, the fastening portion 42, and the main body portion 41 have a T-shape in plan view (see fig. 3). The upper contact portion 51 is disposed so as to be offset rearward with respect to the lower contact portion 50. The lower end of the upper abutting portion 51 is connected to the upper end of the lower abutting portion 50 via a stepped portion 52.
The stepped portion 52 has a face extending forward and backward and facing up and down. The stepped portion 52 is disposed between the lower body portion 44 and the upper body portion 45 in the up-down direction. The upper contact portion 51 is disposed at a distance from the second heat exchanger 14. A connecting portion 54 extending rightward is formed at an upper end of the upper contact portion 51.
The connection portion 54 is connected to the upper abutting portion 51 and the upper end of the main body portion 41. The rear surface of the connecting portion 54 is connected to the front surface of the flange portion 7 of the upper air guide member 6. Thereby, the air guide member 40, the upper air guide member 6, and the partition plate 2 are connected.
As shown in fig. 3 to 5, gaps among the air guide member 40, the heat exchangers 13, 14, 15, and the protector 35 are sealed by sealing members 61, 62, 63, respectively. The seal members 61, 62, 63 are formed of a rubber material having flexibility. The sealing members 61, 62, 63 include a first sealing member 61, a second sealing member 62, and a third sealing member 63. The first sealing member 61, the second sealing member 62, and the third sealing member 63 may be formed of the same material. The first sealing member 61, the second sealing member 62, and the third sealing member 63 may be formed of different materials.
The first sealing member 61 seals a gap between the lower contact portion 50 of the air guide member 40 and the protector 35. The first seal member 61 extends up and down along the lower abutment 50 and the protector 35. The rear surface of the lower abutment 50 abuts against the front surface of the protector 35 via the first sealing member 61.
The second seal member 62 seals a gap between the upper contact portion 51 of the air guide member 40 and the second upstream side header 25 or the second downstream side header 26 of the second heat exchanger 14. The second seal member 62 extends up and down along the upper abutting portion 51. The rear surface of the upper contact portion 51 of the left air guide member 40 contacts the second upstream side header 25 via the second seal member 62. The rear surface of the upper contact portion 51 of the right air guide member 40 contacts the second downstream header 26 via the second seal member 62.
The third sealing member 63 seals the gap between the left and right sides of the first heat exchanger 13 (i.e., the first upstream side header 20 or the first downstream side header 21) and the left and right sides of the second heat exchanger 14 (i.e., the second upstream side header 25 or the second downstream side header 26). The third sealing member 63 extends up and down along the left and right sides of the second heat exchanger 14. The front portions of the left and right sides of the first heat exchanger 13 are in contact with the rear portions of the left and right sides of the second heat exchanger 14 via the third seal member 63.
Effects of the vehicle body front portion structure 1 of the present invention will be described below. The vehicle front structure 1 includes at least 1 heat exchanger assembly 10, a breathable protector 35, and a pair of left and right air guide members 40. The protector 35 is provided on the front surface of the lower portion of the heat exchanger assembly 10. The pair of left and right air guide members 40 are provided in front of the left and right side edges of the heat exchanger assembly 10, and have a main body portion 41 extending vertically and forward. The gap between each air guide member 40 and the protector 35 is sealed by the first sealing member 61. The gaps between the respective air guide members 40 and the heat exchanger assembly 10 are sealed by the second sealing members 62.
According to this structure, traveling wind flowing in from the front of the vehicle through the protector 35 is guided to the heat exchanger assembly 10 by the wind guide member 40. Since the gap between the air guide member 40 and the protector 35 is sealed by the first seal member 61, it is possible to suppress leakage of the traveling wind from the gap. Further, since the gap between the air guide member 40 and the heat exchanger assembly 10 is sealed by the second seal member 62, it is possible to suppress leakage of the traveling wind from the gap. Therefore, the traveling wind can be efficiently guided to the heat exchanger assembly 10. In this way, in the vehicle body front portion structure 1, the cooling efficiency of the heat exchangers 13, 14, 15 can be improved. In addition, by improving the cooling efficiency of the heat exchangers 13, 14, 15, an improvement in energy efficiency can be achieved.
The air guide member 40 has a lower abutting portion 50 and an upper abutting portion 51, respectively. The lower contact portion 50 contacts the protector 35 via the first seal member 61. The upper contact portion 51 contacts the heat exchanger assembly 10 via the second seal member 62. The upper contact portion 51 is disposed so as to be offset rearward with respect to the lower contact portion 50.
The protector 35 is provided on the front surface of the lower portion of the heat exchanger assembly 10. Therefore, the upper portion of the heat exchanger assembly 10 is disposed offset rearward with respect to the protector 35. By disposing the upper contact portion 51 as described above, the upper contact portion 51 can be disposed close to the heat exchanger assembly 10, and the lower contact portion 50 can be disposed close to the protector 35. Therefore, the clearance between the heat exchanger assembly 10 and the protector 35 and the air guide member 40 can be reduced. Therefore, the vehicle body front structure 1 can be compactly constructed.
The vehicle body front structure 1 has a bulkhead 2. The bulkhead 2 has a pair of right and left stringers 3 extending up and down, an upper member 4, and a lower member 5. The upper members 4 extend leftward and rightward, and are connected to respective upper ends of the stringers 3. The lower members 5 extend laterally and are connected to the respective lower ends of the stringers 3. The heat exchanger assembly 10 is disposed inside the separator 2. The left and right wind guide members 40 have fastening portions 42 fastened to the corresponding side members 3 in the left and right directions.
Thus, when a load is applied to the air guide member 40 from the front, the load is transmitted to the bulkhead 2 via the fastening portion 42. Therefore, it is possible to make it difficult to apply a load to the heat exchanger assembly 10.
The air guide member 40 has a body portion 41 extending in the front-rear direction. The fastening portion 42 is formed in a plate shape facing the front and rear, and is provided at the rear end of the main body 41.
Thereby, the contact area between the fastening portion 42 of the air guide member 40 and the partition plate 2 becomes large. Therefore, the load applied to the air guide member 40 from the front is efficiently transmitted to the partition plate 2 via the fastening portion 42. Further, since the traveling wind pushes the fastening portion 42 toward the separator 2, the sealability of the first seal member 61 and the second seal member 62 improves. Further, since the traveling wind is guided along the body portion 41 extending in the front-rear direction, the traveling wind can be efficiently guided to the heat exchanger assembly 10.
At least 1 heat exchanger 13, 14, 15 has a first heat exchanger 13, a second heat exchanger 14 and a third heat exchanger 15. The second heat exchanger 14 is disposed in front of the upper portion of the first heat exchanger 13. The third heat exchanger 15 is disposed in front of the lower portion of the first heat exchanger 13. A protector 35 is disposed in front of the third heat exchanger 15.
Thereby, the protector 35 is disposed in front of the heat exchanger assembly 10. Therefore, the heat exchanger assembly 10 can be protected from foreign matter flying from the front and lower sides of the heat exchanger assembly 10. In addition, 3 different heat exchangers 13, 14, 15 can be provided in 1 heat exchanger assembly 10.
Gaps between the left and right sides of the first heat exchanger 13 and the left and right sides of the second heat exchanger 14 are sealed by the third sealing member 63.
This can suppress leakage of the traveling wind from the gap between the first heat exchanger 13 and the second heat exchanger 14. Therefore, the traveling wind can be efficiently guided to the first heat exchanger 13.
The first heat exchanger 13 has a first upstream side header 20, a first downstream side header 21, and a plurality of first radiating pipes 22. The second heat exchanger 14 has a second upstream side header 25, a second downstream side header 26, and a plurality of second radiating pipes 27. The third heat exchanger 15 has a third upstream side header 30, a third downstream side header 31, and a plurality of third radiating pipes 32. The first upstream header 20 and the first downstream header 21, the second upstream header 25 and the second downstream header 26, and the third upstream header 30 and the third downstream header 31 extend vertically, respectively, and are disposed at left and right sides with a gap therebetween. The plurality of first radiating pipes 22 extend rightward and leftward, and connect the first upstream side header 20 with the first downstream side header 21. The plurality of second radiating pipes 27 extend rightward and leftward, and connect the second upstream side header 25 with the second downstream side header 26. The plurality of third radiating pipes 32 extend laterally and connect the third upstream side header 30 to the third downstream side header 31. The upper contact portion 51 contacts the second upstream side header 25 or the second downstream side header 26 of the second heat exchanger 14 via the second seal member 62, respectively.
Thereby, the traveling wind is guided to the plurality of radiating pipes 22, 27, 32 by the pair of wind guiding members 40. In addition, the running wind can be prevented from leaking from the gaps between the wind guide member 40, the upstream side headers 20, 25, 30, and the downstream side headers 21, 26, 31. Therefore, the traveling wind can be efficiently guided to the radiating pipes 22, 27, 32.
The first heat exchanger 13 is a radiator for an internal combustion engine, the second heat exchanger 14 is a condenser for an air conditioner, and the third heat exchanger 15 is a radiator for a hybrid system.
This can improve the cooling efficiency of the radiator for the internal combustion engine, the condenser for the air conditioner, and the radiator for the hybrid system.
The description of the specific embodiments has been completed above, but the present invention is not limited to the above embodiments and can be widely modified and implemented. In the above embodiments, the heat exchangers 13, 14, 15 are of the cross flow type, but the heat exchangers may be of the downflow type. In this case, the upstream header and the downstream header extend laterally, and the radiating pipe extends vertically.

Claims (7)

1. A vehicle body front portion structure, wherein,
the vehicle body front structure includes:
a heat exchanger assembly comprising at least 1 heat exchanger;
a protector provided on a front surface of a lower portion of the heat exchanger assembly and having air permeability;
a pair of left and right air guide members provided in front of left and right side edges of the heat exchanger assembly, extending up and down and toward the front;
a first sealing member that seals a gap between each of the air guide members and the protector; and
and a second sealing member that seals a gap between each of the air guide members and the heat exchanger assembly.
2. The vehicle body front structure according to claim 1, wherein,
each of the air guide members has: a lower abutting portion that abuts against the protector via the first seal member; and an upper abutting portion abutting against the heat exchanger assembly via the second seal member,
the upper contact portion is disposed so as to be offset rearward with respect to the lower contact portion.
3. The vehicle body front structure according to claim 2, wherein,
the vehicle body front structure further has a bulkhead having: a pair of right and left stringers extending up and down; an upper member extending from left to right and connected to upper ends of the stringers; and lower members extending from left to right and connected to respective lower ends of the stringers,
the heat exchanger assembly is disposed inside the separator,
the left and right wind guide members have fastening portions fastened to the corresponding side members in the left and right directions.
4. The vehicle body front structure according to claim 3, wherein,
the wind guide member has a body portion extending in the front-rear direction,
the fastening portion is formed in a plate shape facing front and rear, and is provided at a rear end of the main body portion.
5. The vehicle body front structure according to claim 4, wherein,
at least 1 of the heat exchangers has: a first heat exchanger; a second heat exchanger disposed in front of an upper portion of the first heat exchanger; and a third heat exchanger disposed in front of a lower portion of the first heat exchanger,
the protector is disposed in front of the third heat exchanger.
6. The vehicle body front structure according to claim 5, wherein,
the gap between the left and right sides of the first heat exchanger and the left and right sides of the second heat exchanger is sealed by a third sealing member.
7. The vehicle body front structure according to claim 6, wherein,
the first heat exchanger, the second heat exchanger, and the third heat exchanger each have an upstream side header, a downstream side header, and a plurality of radiating pipes connecting the upstream side header and the downstream side header,
the upstream header and the downstream header extend vertically, are disposed at left and right sides with a space therebetween,
a plurality of the radiating pipes extend left and right,
the upper contact portions are respectively brought into contact with the upstream side header or the downstream side header of the second heat exchanger via the second seal member.
CN202310143608.9A 2022-03-08 2023-02-07 Front structure of vehicle body Pending CN116729495A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022-035191 2022-03-08
JP2022035191A JP2023130735A (en) 2022-03-08 2022-03-08 Vehicle body front structure

Publications (1)

Publication Number Publication Date
CN116729495A true CN116729495A (en) 2023-09-12

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Application Number Title Priority Date Filing Date
CN202310143608.9A Pending CN116729495A (en) 2022-03-08 2023-02-07 Front structure of vehicle body

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JP (1) JP2023130735A (en)
CN (1) CN116729495A (en)

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