Front body structure

Abstract

To provide a vehicle body front structure which improves cooling efficiency of a heat exchanger.SOLUTION: A vehicle body front structure 1 comprises: a heat exchanger assembly 10 including at least one of heat exchangers 13, 14, 15; an air permeable protector 35 arranged on a front face of a lower part of the heat exchanger assembly; a pair of right and left wind guide members 40 arranged in front of right and left side edges of the heat exchanger assembly and extending vertically and forward; a first seal member 61 sealing gaps between the respective wind guide members and the protector; and a second seal member 62 sealing gaps between the respective wind guide members and the heat exchanger assembly.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a vehicle front body structure. [Background technology]

[0002] In recent years, research and development has been conducted to contribute to energy efficiency so that more people can have access to affordable, reliable, sustainable, and advanced energy. Patent Document 1 discloses a vehicle front structure having a rectangular panel body supported by a vehicle frame, a radiator and an air conditioning condenser supported inside the panel body, and an air guide member extending forward from the panel body. The air guide member guides the wind generated while the vehicle is running to the radiator and the condenser. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 11-129935 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the vehicle front body structure of Patent Document 1, there are gaps between the panel main body and the radiator and condenser, which causes a problem in that the traveling wind guided by the air guide member flows through the gaps between the panel main body and the radiator and condenser.

[0005] 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 front body structure, and to improve energy efficiency by improving the cooling efficiency of the heat exchanger. [Means for solving the problem]

[0006] In order to solve the above problem, one aspect of the present invention is a vehicle body front structure (1) comprising a heat exchanger assembly (10) including at least one heat exchanger (13, 14, 15), a breathable protector (35) provided on the front surface of the lower part of the heat exchanger assembly, a pair of left and right air guide members (40) provided in front of the left and right side edges of the heat exchanger assembly and extending up and down as well as forward, a first sealing member (61) that seals the gap between each of the air guide members and the protector, and a second sealing member (62) that seals the gap between each of the air guide members and the heat exchanger assembly.

[0007] According to this aspect, the traveling wind can be efficiently guided to the heat exchanger assembly, thereby improving the cooling efficiency of the heat exchanger in the vehicle body front structure. Furthermore, improving the cooling efficiency of the heat exchanger can improve energy efficiency.

[0008] In the above aspect, each of the air guide members has a lower abutment portion (50) that abuts against the protector via the first seal member and an upper abutment portion (51) that abuts against the heat exchanger assembly via the second seal member, and the upper abutment portion is preferably positioned offset rearward from the lower abutment portion.

[0009] According to this aspect, the gap between the heat exchanger assembly and the protector and the air guide member can be reduced.

[0010] In the above aspect, the vehicle may further include a bulkhead (2) having a pair of left and right side members (3) extending vertically, an upper member (4) extending left and right and connected to the upper ends of each of the side members, and a lower member (5) extending left and right and connected to the lower ends of each of the side members, the heat exchanger assembly being disposed inside the bulkhead, and the left and right air guide members having fastening portions (42) fastened to the corresponding side members on the left and right.

[0011] According to this aspect, the load applied to the air guide member from the front can be transmitted to the bulkhead, making it possible to make it difficult for the load to be applied to the heat exchanger assembly.

[0012] In the above aspect, the air guide member may have a main body portion (41) extending in the front-rear direction, and the fastening portion may be formed in the shape of a plate facing forward and backward and provided at the rear end of the main body portion.

[0013] According to this aspect, a load applied to the air guide member from the front is efficiently transmitted to the bulkhead via the fastening portion.

[0014] In the above aspect, it is preferable that at least one of the heat exchangers includes a first heat exchanger (13), a second heat exchanger (14) arranged in front of an upper part of the first heat exchanger, and a third heat exchanger (15) arranged in front of a lower part of the first heat exchanger, and the protector is arranged in front of the third heat exchanger.

[0015] According to this aspect, the protector can protect the heat exchanger assembly from foreign objects flying in from the front and below the heat exchanger assembly.

[0016] In the above aspect, it is preferable that gaps between the left and right side portions of the first heat exchanger and the left and right side portions of the second heat exchanger are sealed by third seal members (63).

[0017] According to this aspect, it is possible to prevent the wind generated by running from leaking from the gap between the first heat exchanger and the second heat exchanger.

[0018] In the above aspect, each of the first heat exchanger, the second heat exchanger, and the third heat exchanger has an upstream header (20, 25, 30), a downstream header (21, 26, 31), and a plurality of heat radiation pipes (22, 27, 32) connecting the upstream header and the downstream header, each of the upstream header and the downstream header extending vertically and arranged at intervals on the left and right, the plurality of heat radiation pipes extending horizontally, and each of the upper abutment portions abutting against the upstream header or the downstream header of the second heat exchanger via the second seal member.

[0019] According to this aspect, the wind generated when the vehicle is traveling can be efficiently guided to the heat dissipation pipe. [Effects of the Invention]

[0020] According to the above-described configuration, the cooling efficiency of the heat exchanger in the vehicle body front structure can be improved. Furthermore, by improving the cooling efficiency of the heat exchanger, energy efficiency can be improved. [Brief explanation of the drawings]

[0021] [Figure 1] Perspective view of the front body structure [Figure 2] Front view of the front body structure [Figure 3] Schematic cross-section of the upper part of the front body structure [Figure 4] Schematic cross-section of the lower part of the front body structure [Figure 5] Enlarged cross-sectional view showing the lower left end of the front body structure [Figure 6] A side view of the left air guide member seen from the right side DETAILED DESCRIPTION OF THE INVENTION

[0022] Hereinafter, an embodiment of a vehicle body front structure 1 according to the present invention will be described with reference to the drawings. In this embodiment, the vehicle body front structure 1 constitutes the front part of the body of a four-wheeled automobile. Note that the directions used in the description are based on the driver of the automobile to which the vehicle body front structure 1 according to the present invention is applied.

[0023] As shown in Figures 1 and 2, the vehicle body front structure 1 has a bulkhead 2 and a heat exchanger assembly 10. The bulkhead 2 is located at the front end of the vehicle body front structure 1 and has a generally rectangular shape. The bulkhead 2 has a pair of left and right side members 3 extending vertically, an upper member 4 connected to the upper ends of each of the side members 3, and a lower member 5 connected to the lower ends of each of the side members 3. The upper member 4 is located rearward of the lower member 5, and the bulkhead 2 is tilted rearward.

[0024] An upper air guide member 6 that extends left and right and forward is provided at the lower front end of the upper member 4. The upper air guide member 6 is a member that guides running air from the front of the vehicle toward the heat exchanger assembly 10. The upper air guide member 6 has a flange portion 7 connected to the upper member 4 and a plate portion 8. The flange portion 7 has a surface facing forward and backward, and its rear surface is connected to the upper member 4. The plate portion 8 is connected to the lower end of the flange portion 7 and extends forward.

[0025] A lower air guide member 11 is provided at the lower front end of the lower member 5. The lower air guide member 11 is a member that guides airflow from the front of the vehicle toward the heat exchanger assembly 10. The lower air guide member 11 extends to the left and right and is inclined upward toward the front.

[0026] The heat exchanger assembly 10 is disposed inside the bulkhead 2. The heat exchanger assembly 10 includes heat exchangers 13, 14, and 15. The heat exchangers 13, 14, and 15 are preferably cross-flow heat exchangers. The heat exchangers 13, 14, and 15 include 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 part of the first heat exchanger 13. The third heat exchanger 15 is disposed in front of the lower part of the first heat exchanger 13. A cooling fan 16 having a rotating shaft extending in the front-to-rear direction is provided behind the first heat exchanger 13. The cooling fan 16 rotates to blow air through the heat exchangers 13, 14, and 15, cooling them.

[0027] The first heat exchanger 13 functions as a radiator for the internal combustion engine. The first heat exchanger 13 is connected by piping to a water jacket provided on the internal combustion engine body, a turbocharger, or the like. The first heat exchanger 13 is a device that cools the cooling water for the internal combustion engine (hereinafter referred to as first cooling water) that circulates through the piping. The temperature of the cooling water rises as it circulates through a heat source (for example, a cylinder head) that constitutes the internal combustion engine.

[0028] 3 and 4, the first heat exchanger 13 has a first upstream header 20, a first downstream header 21, and a plurality of first heat radiation pipes 22. The first upstream header 20 and the first downstream header 21 are arranged laterally with a gap between them. The plurality of first heat radiation pipes 22 connect the first upstream header 20 and the first downstream header 21. A plurality of heat radiation fins (not shown) are arranged between the plurality of first heat radiation pipes 22. Cooling water flows from the first upstream header 20 through the plurality of first heat radiation pipes 22 to the first downstream header 21.

[0029] The first upstream header 20 distributes the cooling water that flows in from the internal combustion engine. The first upstream header 20 is a hollow member that extends vertically. The first upstream header 20 is made of metal. The first upstream header 20 is provided on the left side of the first heat exchanger 13. The cooling water that accumulates in the first upstream header 20 flows into multiple first heat radiation pipes 22.

[0030] The plurality of first heat radiation pipes 22 flow the cooling water from the first upstream header 20 to the first downstream header 21. Each of the first heat radiation pipes 22 is a hollow member extending left and right. Each of the first heat radiation pipes 22 is preferably formed to have a thin pipe thickness. The plurality of first heat radiation pipes 22 is preferably formed from an aluminum alloy with high thermal conductivity. The heat of the cooling water flowing through the plurality of first heat radiation pipes 22 is transferred to the plurality of heat radiation fins and released into the air. This cools the cooling water. The cooling water flowing out of the plurality of first heat radiation pipes 22 flows into the first downstream header 21.

[0031] The first downstream header 21 is a hollow member that extends vertically. The first downstream header 21 is made of metal. The first downstream header 21 is provided on the right side of the first heat exchanger 13. The cooled cooling water that accumulates in the first downstream header 21 flows through piping toward the internal combustion engine body.

[0032] The second heat exchanger 14 functions as a condenser for the air conditioning system. The second heat exchanger 14 is connected to the vehicle air conditioner via piping. The second heat exchanger 14 is a device that cools the refrigerant circulating through the piping. The temperature of the refrigerant rises when it is compressed by the air compressor.

[0033] The second heat exchanger 14 has a second upstream header 25, a second downstream header 26, and a plurality of second heat radiation pipes 27. The second upstream header 25 and the second downstream header 26 are arranged at a distance from each other on the left and right. The plurality of second heat radiation pipes 27 connect the second upstream header 25 and the second downstream header 26. A plurality of heat radiation fins (not shown) are arranged between the plurality of second heat radiation pipes 27.

[0034] The refrigerant flows from the second upstream header 25 through the second heat radiation pipes 27 to the second downstream header 26. The configuration in which the second heat exchanger 14 cools the refrigerant is similar to the configuration in which the first heat exchanger 13 cools the first cooling water, and therefore, description thereof will be omitted.

[0035] The third heat exchanger 15 functions as a radiator for the hybrid system. The third heat exchanger 15 is connected by piping to water jackets provided on the electronic control device, the motor, etc. The third heat exchanger 15 is a device that cools the cooling water for the hybrid system (hereinafter referred to as third cooling water) that circulates through the piping. The temperature of the third cooling water rises as it circulates through the electrical components (e.g., the motor) that make up the hybrid system.

[0036] The third heat exchanger 15 has a third upstream header 30, a third downstream header 31, and a plurality of third heat radiation pipes 32. The third upstream header 30 and the third downstream header 31 are arranged laterally at a distance from each other. The plurality of third heat radiation pipes 32 connect the third upstream header 30 and the third downstream header 31. A plurality of heat radiation fins (not shown) are arranged between the plurality of third heat radiation pipes 32.

[0037] The third cooling water flows from the third upstream header 30 through a plurality of third heat radiation pipes 32 to the third downstream header 31. The configuration in which the third heat exchanger 15 cools the third cooling water is similar to the configuration in which the first heat exchanger 13 cools the first cooling water, and therefore a description thereof will be omitted.

[0038] The electric components of the hybrid system have a lower allowable heat resistance temperature than the heat source of the internal combustion engine. Therefore, the third coolant needs to be cooled to a lower temperature than the first coolant. For this reason, the length of the third heat radiation pipe 32 may be longer than the length of the first heat radiation pipe 22.

[0039] As shown in Figures 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 objects (e.g., flying stones) flying from the front and below of the vehicle. The protector 35 is disposed on the lower air guide member 11. The protector 35 is preferably formed in a rectangular shape from a resin material. The protector 35 has a plurality of air vents 36 penetrating from the front to the rear, thereby providing breathability to the protector 35. The plurality of air vents 36 are preferably arranged in a lattice pattern when viewed from the front. A pair of left and right air guide members 40 is provided on both the left and right sides of the protector 35.

[0040] 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. The pair of left and right air guide members 40 are members that guide the 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 provided symmetrically with respect to the central axis of the vehicle in the longitudinal direction. The following describes the air guide member 40 provided on the left side. A description of the air guide member 40 on the right side will be omitted.

[0041] The air guide member 40 is made of a resin material and has a main body portion 41, a fastening portion 42, and a contact portion 43.

[0042] As shown in Figures 1 and 6, the main body portion 41 extends vertically and also forward. The main body portion 41 has a lower main body portion 44 and an upper main body portion 45 arranged above the lower main body portion 44. The lower main body portion 44 forms the lower part of the main body portion 41. The upper main body portion 45 forms the upper part of the main body portion 41. The lower part of the lower main body portion 44 is inclined upward toward the front. The upper part of the upper main body portion 45 is inclined downward toward the front. A recess is formed between the lower main body portion 44 and the upper main body portion 45.

[0043] 3 to 5, the front portion of main body 41 is offset rightward relative to the rear portion of main body 41. A fastening portion 42 is provided on the left side surface of the rear portion of main body 41. A contact portion 43 is provided on the right side surface of the rear portion of main body 41.

[0044] The fastening portion 42 extends leftward from the left side surface of the rear of the main body portion 41. The fastening portion 42 is formed in the shape of a plate facing forward and backward. 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, thereby connecting the air guide member 40 and the bulkhead 2.

[0045] 2 and 6, the contact portion 43 extends rightward from the right side surface of the rear portion of the main body 41. The contact portion 43 has a lower contact portion 50 and an upper contact portion 51 connected to the lower contact portion 50.

[0046] The lower contact portion 50 constitutes the lower part of the contact portion 43. The lower contact portion 50 is disposed at a position corresponding to the lower main body portion 44 in the up-down direction. The lower contact portion 50 has a surface facing forward and backward. The lower contact portion 50 is disposed at a distance from the protector 35.

[0047] The upper contact portion 51 constitutes the upper part of the contact portion 43. The upper contact portion 51 is disposed at a position corresponding to the upper main body portion 45 in the vertical direction. The upper contact portion 51 has a surface facing forward and backward. The upper contact portion 51, the fastening portion 42, and the main body portion 41 form a T-shape in top view (see FIG. 3). The upper contact portion 51 is disposed offset rearward relative to the lower contact portion 50. The lower end of the upper contact portion 51 is connected to the upper end of the lower contact portion 50 via a step portion 52.

[0048] The step portion 52 has a surface that extends in the front-rear direction and faces up and down. The step portion 52 is disposed between the lower main body portion 44 and the upper main 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 connection portion 54 that extends to the right is formed at the upper end of the upper contact portion 51.

[0049] The connecting portion 54 is connected to the upper end of the upper contact portion 51 and 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. This connects the air guide member 40, the upper air guide member 6, and the bulkhead 2.

[0050] As shown in FIGS. 3 to 5, the gaps between the air guide member 40, the heat exchangers 13, 14, and 15, and the protector 35 are sealed by seal members 61, 62, and 63, respectively. The seal members 61, 62, and 63 are made of a flexible rubber material. The seal members 61, 62, and 63 include a first seal member 61, a second seal member 62, and a third seal member 63. The first seal member 61, the second seal member 62, and the third seal member 63 may be made of the same material. Alternatively, the first seal member 61, the second seal member 62, and the third seal member 63 may be made of different materials.

[0051] The first seal member 61 seals the gap between the lower contact portion 50 of the air guide member 40 and the protector 35. The first seal member 61 extends vertically along the lower contact portion 50 and the protector 35. The rear surface of the lower contact portion 50 contacts the front surface of the protector 35 via the first seal member 61.

[0052] The second seal member 62 seals the gap between the upper contact portion 51 of the air guide member 40 and the second upstream header 25 or the second downstream header 26 of the second heat exchanger 14. The second seal member 62 extends vertically along the upper contact portion 51. The rear surface of the upper contact portion 51 of the left air guide member 40 abuts against the second upstream header 25 via the second seal member 62. The rear surface of the upper contact portion 51 of the right air guide member 40 abuts against the second downstream header 26 via the second seal member 62.

[0053] The third seal members 63 seal the gaps between the left and right sides of the first heat exchanger 13 (i.e., the first upstream header 20 or the first downstream header 21) and the left and right sides of the second heat exchanger 14 (i.e., the second upstream header 25 or the second downstream header 26). The third seal members 63 extend vertically 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 abut against the rear portions of the left and right sides of the second heat exchanger 14 via the third seal members 63.

[0054] The effects of the vehicle body front structure 1 according to the present invention will be described below. The vehicle body front structure 1 has at least one 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 part 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 main bodies 41 that extend vertically and forward. The gap between each air guide member 40 and the protector 35 is sealed by a first seal member 61. The gap between each air guide member 40 and the heat exchanger assembly 10 is sealed by a second seal member 62.

[0055] With this configuration, the traveling wind that flows in from the front of the vehicle through the protector 35 is guided to the heat exchanger assembly 10 by the air guide member 40. The gap between the air guide member 40 and the protector 35 is sealed by the first seal member 61, so the traveling wind can be prevented from leaking through the gap. Furthermore, the gap between the air guide member 40 and the heat exchanger assembly 10 is sealed by the second seal member 62, so the traveling wind can be prevented from leaking through the gap. Therefore, the traveling wind can be efficiently guided to the heat exchanger assembly 10. This improves the cooling efficiency of the heat exchangers 13, 14, and 15 in the vehicle body front structure 1. Furthermore, improving the cooling efficiency of the heat exchangers 13, 14, and 15 can improve energy efficiency.

[0056] Each of the air guide members 40 has a lower contact portion 50 and an upper contact portion 51. The lower contact portion 50 contacts the protector 35 via a first seal member 61. The upper contact portion 51 contacts the heat exchanger assembly 10 via a second seal member 62. The upper contact portion 51 is disposed offset rearward from the lower contact portion 50.

[0057] The protector 35 is provided on the front surface of the lower part of the heat exchanger assembly 10. Therefore, the upper part of the heat exchanger assembly 10 is disposed offset rearward relative to the protector 35. By arranging 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. This makes it possible to reduce the gap between the heat exchanger assembly 10 and the protector 35 and the air guide member 40. This allows the vehicle body front structure 1 to be configured compactly.

[0058] The vehicle body front structure 1 has a bulkhead 2. The bulkhead 2 has a pair of left and right side members 3 that extend vertically, an upper member 4, and a lower member 5. The upper member 4 extends left and right and connects to the upper ends of each of the side members 3. The lower member 5 extends left and right and connects to the lower ends of each of the side members 3. The heat exchanger assembly 10 is disposed inside the bulkhead 2. The left and right air guide members 40 have fastening portions 42 that are fastened to the corresponding side members 3 on the left and right.

[0059] As a result, 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 for the load to be applied to the heat exchanger assembly 10.

[0060] The air guide member 40 has a main body portion 41 that extends in the front-rear direction. The fastening portion 42 is formed in the shape of a plate that faces the front-rear direction, and is provided at the rear end of the main body portion 41.

[0061] This increases the contact area between the fastening portion 42 of the air guide member 40 and the bulkhead 2. Therefore, the load applied to the air guide member 40 from the front is efficiently transmitted to the bulkhead 2 via the fastening portion 42. In addition, the traveling wind presses the fastening portion 42 against the bulkhead 2, improving the sealing performance of the first seal member 61 and the second seal member 62. Furthermore, the traveling wind is guided along the main body portion 41 that extends in the front-to-rear direction, so the traveling wind can be efficiently guided to the heat exchanger assembly 10.

[0062] The at least one heat exchanger 13, 14, 15 includes 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 part of the first heat exchanger 13. The third heat exchanger 15 is disposed in front of the lower part of the first heat exchanger 13. A protector 35 is disposed in front of the third heat exchanger 15.

[0063] As a result, the protector 35 is disposed in front of the heat exchanger assembly 10. This allows the heat exchanger assembly 10 to be protected from foreign objects flying in from the front and below the heat exchanger assembly 10. Furthermore, one heat exchanger assembly 10 can be provided with three different heat exchangers 13, 14, and 15.

[0064] The gaps between the left and right side portions of the first heat exchanger 13 and the left and right side portions of the second heat exchanger 14 are sealed by third seal members 63.

[0065] This makes it possible to prevent the wind generated by running from leaking from the gap between the first heat exchanger 13 and the second heat exchanger 14. Therefore, the wind generated by running can be guided to the first heat exchanger 13 efficiently.

[0066] The first heat exchanger 13 has a first upstream header 20, a first downstream header 21, and a plurality of first heat radiation pipes 22. The second heat exchanger 14 has a second upstream header 25, a second downstream header 26, and a plurality of second heat radiation pipes 27. The third heat exchanger 15 has a third upstream header 30, a third downstream header 31, and a plurality of third heat radiation 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 each extend vertically and are spaced apart horizontally. The plurality of first heat radiation pipes 22 extend horizontally and connect the first upstream header 20 and the first downstream header 21. The plurality of second heat radiation pipes 27 extend horizontally and connect the second upstream header 25 and the second downstream header 26. The plurality of third heat dissipation pipes 32 extend laterally and connect the third upstream header 30 and the third downstream header 31. Each of the upper contact portions 51 contacts the second upstream header 25 or the second downstream header 26 of the second heat exchanger 14 via a second seal member 62.

[0067] As a result, the pair of air guide members 40 guide the traveling wind to the multiple heat radiation pipes 22, 27, 32. It is also possible to prevent the traveling wind from leaking from gaps between the air guide members 40 and the upstream headers 20, 25, 30 and the downstream headers 21, 26, 31. Therefore, the traveling wind can be efficiently guided to the heat radiation pipes 22, 27, 32.

[0068] The first heat exchanger 13 is a radiator for the internal combustion engine, the second heat exchanger 14 is a condenser for the air conditioner, and the third heat exchanger 15 is a radiator for the hybrid system.

[0069] This makes it possible to 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.

[0070] Although the specific embodiment has been described above, the present invention is not limited to the above embodiment and can be widely modified. In the above embodiment, the heat exchangers 13, 14, and 15 are of the cross-flow type, but the heat exchangers may be of the down-flow type. In this case, the upstream header and the downstream header extend left and right, and the heat dissipation pipes extend up and down. [Explanation of symbols]

[0071] 1: Front body structure 2: Bulkhead 3: Side member 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 header (upstream header) 21: First downstream header (downstream header) 22: 1st heat dissipation tube (heat dissipation tube) 25: Second upstream header (upstream header) 26: Second downstream header (downstream header) 27:Second heat dissipation tube (heat dissipation tube) 30: Third upstream header (upstream header) 31: Third downstream header (downstream header) 32: Third heat sink (heat sink) 35: Protector 40: Air guide member 41: Main body 42: Fastening part 50: Lower contact part 51: Upper contact part 61: First seal member 62: Second seal member 63: Third seal member

Claims

1. A vehicle body front structure, a heat exchanger assembly including at least one heat exchanger; a breathable protector provided on the front surface of the lower portion of the heat exchanger assembly; a pair of left and right air guide members provided in front of left and right side edges of the heat exchanger assembly and extending vertically and forward; a first seal member that seals a gap between each of the air guide members and the protector; a second seal member that seals a gap between each of the air guide members and the heat exchanger assembly; each of the air guide members has a lower abutment portion that abuts against the protector via the first seal member and an upper abutment portion that abuts against the heat exchanger assembly via the second seal member; The vehicle body front structure, wherein the upper contact portion is disposed offset rearward relative to the lower contact portion.

2. a bulkhead including a pair of left and right side members extending vertically, upper members extending horizontally and connected to upper ends of the side members, and lower members extending horizontally and connected to lower ends of the side members, the heat exchanger assembly is disposed inside the bulkhead; 2. The vehicle front body structure according to claim 1, wherein the left and right air guide members have fastening portions that are fastened to the corresponding left and right side members.

3. The air guide member has a main body portion extending in the front-rear direction, The vehicle front body structure according to claim 2 , wherein the fastening portion is formed in a plate shape facing forward and rearward, and is provided at a rear end of the main body portion.

4. The at least one heat exchanger includes 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 vehicle front body structure according to claim 3 , wherein the protector is disposed in front of the third heat exchanger.

5. 5. The vehicle front body structure according to claim 4, wherein gaps between the left and right side portions of the first heat exchanger and the left and right side portions of the second heat exchanger are sealed by third seal members.

6. each of the first heat exchanger, the second heat exchanger, and the third heat exchanger includes an upstream header, a downstream header, and a plurality of heat radiation pipes connecting the upstream header and the downstream header; The upstream header and the downstream header each extend vertically and are arranged at intervals in the left and right directions, The plurality of heat radiation pipes extend in the left and right directions, The vehicle front body structure according to claim 5 , wherein each of the upper contact portions contacts the upstream header or the downstream header of the second heat exchanger via the second seal member.

7. A vehicle body front structure, a heat exchanger assembly including at least one heat exchanger; a breathable protector provided on the front surface of the lower portion of the heat exchanger assembly; a pair of left and right air guide members provided in front of left and right side edges of the heat exchanger assembly and extending vertically and forward; a first seal member that seals a gap between each of the air guide members and the protector; a second seal member that seals a gap between each of the air guide members and the heat exchanger assembly; The at least one heat exchanger includes 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; A vehicle body front structure, wherein gaps between the left and right side portions of the first heat exchanger and the left and right side portions of the second heat exchanger are sealed by third sealing members.

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