Mounting structure for heat exchanger

Abstract

Provided is a mounting structure for a heat exchanger, the mounting structure comprising: a heat exchanger located on the outside in the vehicle width direction of a side member extending in the front-rear direction; and a bracket for fixing the heat exchanger to the side member. The heat exchanger is attached to the bracket by a first mounting unit provided on one side of the heat exchanger in the vehicle width direction and a second mounting unit provided on the other side of the heat exchanger in the vehicle width direction, and the first mounting unit and the second mounting unit are offset in the vertical direction.

Description

Heat exchanger mounting structure

[0001] The present invention relates to a heat exchanger mounting structure for mounting a heat exchanger to a side member of a vehicle.

[0002] In conventional vehicles, in addition to the radiator located in front of the engine, an auxiliary radiator, oil cooler, or other heat exchanger may be located on one of the left and right sides of the vehicle. In this case, a bracket is fixed to a side member of the vehicle frame, and the heat exchanger is attached to this bracket. However, because heat exchangers are usually heavy, there is a problem that it takes time and effort for an operator to manually attach them to the bracket on the side of the vehicle body.

[0003] To address this problem, Patent Document 1 proposes a heat exchanger mounting structure in which a pair of brackets are fixed at a distance from each other in the longitudinal direction of the side member, notched grooves are formed in the pair of brackets for temporary fastening, and mounting members are provided in the notched grooves to mount the heat exchanger.

[0004] Japanese Patent Application Publication No. 2003-285654

[0005] In Patent Document 1, the heat exchanger can be temporarily fixed in the bracket's notch groove and then the worker can attach the heat exchanger to the bracket side using the attachment members, allowing the worker to attach the heat exchanger calmly.However, the attachment strength of the heat exchanger attached to the side member cannot be sufficiently ensured, and vibrations caused by the vehicle being driven may cause the attachment members to loosen or rattle.

[0006] The present invention has been made in consideration of the above circumstances, and aims to provide a heat exchanger mounting structure that can more firmly and stably mount and fix a heat exchanger to a side member.

[0007] The above object of the present invention is achieved by the following configuration: [1] A mounting structure for a heat exchanger, comprising: a heat exchanger arranged on the vehicle width direction outer side of a side member extending in the front-rear direction; and a bracket that fixes the heat exchanger to the side member, wherein the heat exchanger is mounted to the bracket by a first mounting portion provided on a side surface of the heat exchanger on one side in the vehicle width direction and a second mounting portion provided on a side surface of the heat exchanger on the other side in the vehicle width direction, and the first mounting portion and the second mounting portion are positioned offset in the vertical direction. [2] The mounting structure for a heat exchanger according to [1], wherein the first mounting portion is provided on the vehicle width direction outer side of the heat exchanger, the second mounting portion is provided on the vehicle width direction inner side of the heat exchanger, and the first mounting portion is positioned higher than the second mounting portion. [3] The mounting structure for a heat exchanger according to [2], wherein the bracket has: a first bracket attached to the first mounting portion and a third mounting portion provided on the side surface of the side member on the outer side in the vehicle width direction; and a second bracket attached to the second mounting portion and a fourth mounting portion provided on the side surface of the side member on the outer side in the vehicle width direction. [4] The mounting structure for a heat exchanger according to [3], wherein the third mounting portion is arranged higher than the fourth mounting portion. [5] The mounting structure for a heat exchanger according to [3], wherein the second bracket is attached to the side member by a front fourth mounting portion on the front side of the heat exchanger and a rear fourth mounting portion on the rear side of the heat exchanger. [6] The mounting structure for a heat exchanger according to [5], wherein the front fourth mounting portion is arranged higher than the rear fourth mounting portion. [7] The mounting structure for a heat exchanger according to [5] or [6], wherein the front fourth mounting portion, the third mounting portion, and the rear fourth mounting portion are arranged in this order from the front side. [8] The mounting structure for a heat exchanger according to [3], wherein the first bracket extends outward in the vehicle width direction from the third mounting portion and has an inclined portion that inclines toward the heat exchanger on the outer side in the vehicle width direction in a plan view. [9] The mounting structure for a heat exchanger according to [3], wherein the first bracket extends outward in the vehicle width direction from the third mounting portion and has a bent portion that protrudes upward on the center side in the vehicle width direction in a front view.

[10] The mounting structure for a heat exchanger according to [3], wherein the second bracket extends in the front-rear direction along the side member and has a C-shape with a central portion in the front-rear direction protruding toward the heat exchanger.

[11] The mounting structure for a heat exchanger according to [3], wherein the heat exchanger includes a cooling duct that introduces cooling air to the front side, and the cooling duct is attached to the heat exchanger by the first bracket.

[12] The mounting structure for a heat exchanger according to [3], wherein the first bracket includes a first sub-bracket attached to the heat exchanger side and a first main bracket attached to the third mounting portion, and the first sub-bracket is held and fixed by the first main bracket from below.

[13] The mounting structure for a heat exchanger according to any one of [1] to

[12] , wherein the heat exchanger and a continuously variable transmission connected to the heat exchanger are positioned close to one end in the vehicle width direction.

[14] The mounting structure for a heat exchanger according to any one of [1] to

[12] , wherein the heat exchanger is a vertical oil cooler, and the bracket fixes the oil cooler to the side member with the cooling surface of the oil cooler facing forward.

[0008] According to the heat exchanger mounting structure of the present invention, the moment acting on the heat exchanger when the vehicle is running can be reduced with a simple configuration, and the heat exchanger can be fixed to the side member more firmly and stably.

[0009] FIG. 1 is a diagram showing the lower front part of a vehicle body. FIG. 2 is a front perspective view of a main part showing a cooling duct and an attachment mechanism for the cooling duct. FIG. 3 is a rear perspective view of a main part showing a cooling duct and an attachment mechanism for the cooling duct. (A) is a right side view showing the cooling duct and the attachment mechanism, and (B) is an enlarged view of a main part showing a second attachment part. FIG. 4 is a left side view showing the cooling duct and the attachment mechanism. (A) is a front view showing the cooling duct and the attachment mechanism. (B) is a bottom view showing the cooling duct and the attachment mechanism. (A) and (B) are a front perspective view and a rear perspective view of a main part showing the first attachment part. FIG. 5 is a cross-sectional view of a main part showing the attachment part on the side member side.

[0010] Hereinafter, a vehicle front structure according to one embodiment of the present invention will be described with reference to the drawings. This embodiment shows only one example of the present invention, and the present invention is not limited to this embodiment. Various modifications and improvements can be made to this embodiment, and such modifications and improvements can also be included in the present invention.

[0011] In this embodiment, the direction of travel of the vehicle is referred to as "front," and the rear of the vehicle when traveling backward is referred to as "rear." The left side of the vehicle in the direction of travel is simply referred to as "left," and the right side of the vehicle in the direction of travel is simply referred to as "right." Furthermore, the left-right direction and the vehicle width direction are synonymous, and the front-rear direction and the vehicle direction are synonymous.

[0012] 1 is a diagram showing the lower front portion of a vehicle body. A vehicle such as a passenger automobile has an engine room 20 in front of a body frame 10 that constitutes the vehicle. The engine room 20 is provided with an engine 1 mounted in the center and a continuously variable transmission 2 such as a CVT that is disposed on one side of the engine 1. In the example shown in the figure, the continuously variable transmission 2 is installed on the left side of the engine 1.

[0013] 2, the body frame 10 has a pair of left and right side members 11 extending in the fore-and-aft direction, crash cans 12 provided at the front ends of each side member 11 so as to extend forward, and left and right bumper beams 13 connecting the front ends of the pair of crash cans 12. The engine 1 and continuously variable transmission 2 mounted in an engine compartment 20 are arranged to be housed between the pair of left and right side members 11, 11.

[0014] The front of the engine compartment 20 is covered by a front grille 21 and a front bumper 22 provided below the front grille 21. The front bumper 22 has a long main opening 23 formed in the center in the left-right direction. This main opening 23, along with a vent hole (not shown) formed in the center in the left-right direction of the front grille 21, allows airflow introduced from the front of the engine compartment 20 to cool the engine 1 mounted in the engine compartment 20 and a radiator (not shown) located in front of the engine 1. In other words, the airflow introduced from the front of the engine compartment functions as cooling air that cools heat sources such as the engine in the engine compartment. The front bumper 22 also has a rectangular sub-opening 25 that is long in the left-right direction below one of the fog lamps 24, 24 provided laterally outside the main opening 23. In the illustrated example, the sub-opening 25 is located further below the side members 11 that constitute the body frame 10 and is provided only on the left side of the front bumper 22.

[0015] Furthermore, behind the sub-opening 25, on the left-right outside of one of the side members 11, there are provided an oil cooler 30 connected to the continuously variable transmission 2, a cooling duct 40 that introduces airflow to cool the oil cooler 30, and an attachment mechanism 50 for attaching the oil cooler 30 and the cooling duct 40 to the body frame 10.

[0016] The oil cooler 30 is attached and fixed via an attachment mechanism 50 to the outer side surface of the front part of the left side member 11 near the continuously variable transmission 2. The oil cooler 30 is rectangular and arranged upright with its longitudinal direction facing up and down, with its cooling surface 30a for air cooling facing forward. A cooling duct 40 is connected to the front side of the oil cooler 30, and guides the airflow taken in by the sub-opening 25 to the cooling surface 30a located on the rear upper side.

[0017] This allows for simple and short piping connecting the oil cooler 30, which is a heat exchanger, and the continuously variable transmission 2, such as a CVT. Furthermore, by arranging the oil cooler 30 vertically, the left-right width can be made compact, and the airflow guided by the cooling duct 40 to blow upward toward the rear can be efficiently directed against the cooling surface 30a.

[0018] Next, the configuration of the cooling duct 40 will be described with reference to Figures 2 to 7. Figures 2 and 3 are front and rear perspective views of the main parts showing the cooling duct and the mounting mechanism for the cooling duct, Figure 4(A) is a right side view showing the cooling duct and the mounting mechanism, Figure 4(B) is an enlarged view of the main parts, and Figures 5 to 7 are left side, front, and bottom views showing the cooling duct and the mounting mechanism.

[0019] The cooling duct 40 includes a duct front section (first section) 40A having a duct opening 41 at its front end, a duct middle section (second section) 40B extending in the front-to-rear direction and inclined upward toward the rear, and a duct rear section (third section) 40C having a connection opening 43 at its rear end. The cooling duct 40 also includes a duct support section 44 for mounting and fixing the cooling duct 40 to the body frame 10.

[0020] When the vehicle is running, the cooling duct 40 first introduces airflow from the duct opening 41 connected to the sub-opening 25. Next, the duct front section 40A, duct middle section 40B, and duct rear section 40C smoothly guide all of the airflow introduced from the duct opening 41 toward the connecting opening 43 located rearward and above the duct opening 41. The airflow guided to the connecting opening 43 is efficiently supplied to the entire cooling surface 30a of the oil cooler 30 on which the fins and the like are arranged, thereby enabling efficient air-cooling of the oil cooler 30.

[0021] The duct opening 41 is formed in a rectangular shape that is long in the left-right direction to match the sub-opening 25, and is arranged on the left-right end side of the front bumper 22. Specifically, as shown in Figures 2 and 7, the duct opening 41 has, in a plan view or a bottom view, a first duct opening 41a on the inside in the left-right direction that extends in the left-right direction, a second duct opening 41b on the outside in the left-right direction that inclines rearward toward the left-right outside, and a vertical cylindrical portion 45 that is arranged at the boundary between the first duct opening 41a and the second duct opening 41b.

[0022] The cylindrical portion 45 is disposed below the fog lamp 24 in a front view. An optical axis adjustment portion (not shown) that supports the fog lamp 24 so that it can swing left and right is housed inside the cylindrical portion 45. The bottom surface of the cylindrical portion 45 is open so that a tool for adjusting the optical axis of the fog lamp 24 can be inserted.

[0023] As shown in Fig. 7, the upper surface of the duct front section 40A protrudes further forward than the lower surface. Also, as shown in Figs. 2 and 7, the left and right inner sides of the cylindrical section 45 of the duct front section 40A are rectangular in shape with a long side in the left-right direction in plan view, so that their front-to-back widths are approximately the same. Meanwhile, the left and right outer sides of the cylindrical section 45 of the duct front section 40A are triangular in plan view, so that their front-to-back widths gradually narrow toward the left and right outer sides.

[0024] The duct middle section 40B is formed so that the entire section slopes upward toward the rear. The front end of the duct middle section 40B is formed into a rectangular shape that is narrow in the vertical direction and wide in the horizontal direction in accordance with the shape of the sub-opening 25. On the other hand, the rear end of the duct middle section 40B is formed into a rectangular shape that is wide in the vertical direction and narrow in the horizontal direction in accordance with the shape of the front surface of the vertical oil cooler 30.

[0025] Regarding the lateral width of the duct middle portion 40B, the lateral inner surfaces of the duct middle portion 40B are gently inclined outward toward the rear at the front and rear, so that the lateral width of the duct middle portion 40B gradually narrows. The lateral width of the duct middle portion 40B is formed so that it fits within the lateral width of the oil cooler 30 at a midpoint in the fore-and-aft direction. In other words, the lateral width of the duct middle portion 40B extends rearward at a rear portion thereof while remaining substantially unchanged.

[0026] Regarding the vertical width of the duct middle section 40B, the front section of the duct middle section 40B slopes gently upward toward the rear while the vertical width remains almost constant, as shown in Figures 4A and 5. At the rear section of the duct middle section 40B, the lower surface extends rearward in a substantially horizontal state toward the lower part of the oil cooler 30, while the upper surface slopes steeply upward and rearward toward the upper part of the oil cooler 30. In other words, at the rear section of the duct middle section 40B, the vertical width gradually increases toward the rear.

[0027] The duct rear section 40C is formed into a rectangular column shape by extending substantially horizontally from the rear end of the duct middle section 40B toward the rear oil cooler 30. The rear end of the duct rear section 40C has a connection opening 43 whose left-right and up-down widths are approximately the same as or slightly smaller than the cooling surface 30a of the oil cooler 30 in a front view. The duct rear section 43C is attached to the oil cooler 30 side with a slight gap between the connection opening 43 and the oil cooler 30.

[0028] According to the above-described duct opening 41, since the second duct opening 41b is tilted rearward outward in the left and right directions, airflow can be efficiently guided to the duct opening 41 located on the outer left and right direction when the vehicle is traveling. Also, by arranging the cylindrical portion 45 between the first duct opening 41a and the second duct opening 41b, the strength of the duct opening 41 of the cooling duct 40 can be maintained high. Furthermore, the cylindrical portion 45 rectifies the airflows introduced from different angles at the first duct opening 41a and the second duct opening 41b, allowing the airflow to be smoothly taken into the cooling duct 40.

[0029] 7, the above-described duct front portion 40A has an upper surface that protrudes further forward than the lower surface, so that when the vehicle is running, the airflow that blows from the lower side to the upper side can be efficiently guided to the duct opening 41. In other words, the amount of air supplied to the oil cooler 30 via the cooling duct 40 can be increased. Furthermore, the duct openings 41 formed on the left and right ends of the lower front portion of the vehicle body become less noticeable.

[0030] Furthermore, with the cooling duct 40 configured as described above, the duct front section 40A is disposed in the dead space below the bumper beam 13, the duct middle section 40B is inclined upward as a whole while only the left and right inner sections are inclined narrowly to avoid interference with the side member 11, and the duct rear section 40C is connected to the oil cooler 30 supported on the outer surface of the side member 11. As a result, the left outer side surface of the cooling duct 40 extends straight and linearly rearward from the duct opening 41 at the front end to the connection opening 43 at the rear end in a front view, as shown in FIG.

[0031] In other words, it is possible to achieve both a space-efficient and compact arrangement of the cooling duct 40 on the front lateral side of the body frame 10 without protruding outward to the left or right of the body, and a large duct opening 41 for introducing the air flow supplied to the oil cooler 30.

[0032] The duct support portion 44 has a front support portion 44A that supports the front portion of the cooling duct 40 on the body frame 10 side, and a rear support portion 44B that supports the rear end of the cooling duct 40 on the oil cooler 30 side.

[0033] The front support portion 44A is a member that extends upward from the upper surface of the duct middle portion 40B. Fixing pins 46 made of resin or the like are provided on the upper end side of the front support portion 44A to fix the crush can 12 to the left and right outer sides.

[0034] 2, the rear support portion 44B is a pair of upper and lower plate-like members welded to the side surfaces of the oil cooler 30. The rear support portion 44B is formed to protrude at least forward, and is configured so that the forward protruding portion of the rear support portion 44B and the duct rear portion 40C can be fixed by a fixing pin 46 made of resin or the like. In other words, the rear portion of the cooling duct 40 is attached to the oil cooler 30, which is attached and fixed to the side member 11 by an attachment mechanism 50, and is therefore also indirectly supported by the vehicle body frame 10.

[0035] Next, the configuration of the attachment mechanism will be described with reference to Figures 2 to 9. Figures 8(A) and 8(B) are a front perspective view and a rear perspective view of the main part showing the first attachment part, and Figure 9 is a cross-sectional view of the main part showing the attachment part on the side member side.

[0036] The mounting mechanism 50 includes a first bracket 51 that connects the left and right outer side surfaces of the side member 11 to the left and right outer side surfaces of the oil cooler 30, and a second bracket 52 that connects the left and right outer side surfaces of the side member 11 to the left and right inner side surfaces of the oil cooler 30.

[0037] As shown in Figures 2 and 3, the first bracket 51 is a plate-shaped member extending in the left-right direction, and has a first sub-bracket 51B whose one end is attached and fixed to a first attachment portion 53 provided on the upper part of the left and right outer side surfaces of the oil cooler 30, and a first main bracket 51A whose one end is attached and fixed to a third attachment portion 54 provided on the outer side surface of the side member 11.

[0038] The first sub-bracket 51B has a sub-side connecting portion 51B1 attached to the first main bracket 51A side, and is fixed by welding or the like to first mounting portions 53 on the left and right outer side surfaces of the oil cooler 30. The first main bracket 51A has frame-side mounting portions 51A2 that attach its left and right inner ends to the third mounting portion 54 side, and main-side connecting portions 51A1 that attach its left and right outer ends to the first sub-bracket 51B side.

[0039] The first main bracket 51A extends in the left-right direction from the side member 11, passing above and rearward of the oil cooler 30, to the upper left and right outer side surfaces of the oil cooler 30. The first main bracket 51A has a bent portion 55 formed midway in the left-right direction that is convex upward. In addition, the left and right outer sides of the bent portion 55 of the first main bracket 51A have inclined portions 56 that are inclined forward so as to approach the oil cooler in a plan view (see FIGS. 7 and 8A).

[0040] As shown in Figures 2 and 3, the second bracket 52 has a second sub-bracket 52B that is attached and fixed to second mounting portions 57 provided on the left and right inner side surfaces of the oil cooler 30, and a second main bracket 52A that is a plate-shaped member extending in the fore-and-aft direction.

[0041] The second main bracket 52A has a longitudinally intermediate portion attached and fixed to the second sub-bracket 52B side, a front end portion attached and fixed to a front fourth attachment portion 58 provided on the outer left and right side surfaces of the side member 11, and a rear end portion attached and fixed to a rear fourth attachment portion 59 provided on the outer left and right side surfaces of the side member 11.

[0042] Specifically, the second main bracket 52A is bent at its center in the front-to-rear direction so as to protrude in the left-to-right direction from the side member 11 side toward the oil cooler 30 side, thereby forming a main-side connecting portion 52A1 that is attached to the second sub-bracket 52B. In addition, the second main bracket 52A has attached portions 52A2 and 52A3 formed on the front and rear ends thereof that are attached and fixed to fourth attaching portions 58 and 59 on the outer side surface of the side member 11.

[0043] As shown in Figure 4 (B), the second sub-bracket 52B is a plate-shaped member fixed by welding or the like to the second mounting portion 57 on the left and right inner side surfaces of the oil cooler, and by extending to the rear side of the oil cooler 30, a sub-side connecting portion 52B1 is formed which is connected to the main side connecting portion 52A1 of the second main bracket 52A.

[0044] In this case, the first mounting portion 53 on the outer side surface of the oil cooler 30 and the second mounting portion 57 on the inner side surface of the oil cooler 30 are offset in the vertical direction. In other words, the first mounting portion 53 to which the first sub-bracket 51B is attached is located higher in a side view than the second mounting portion 57 to which the second sub-bracket 52B is attached.

[0045] Furthermore, the third mounting portion 54, the front fourth mounting portion 58, and the rear fourth mounting portion 59, which are provided on the outer side surface of the side member 11, are offset in the up-down direction and the front-to-rear direction. Specifically, the vertical positions of the mounting portions 54, 58, 59 are arranged in the following order from top to bottom: third mounting portion 54, front fourth mounting portion 58, rear fourth mounting portion 59. Furthermore, the longitudinal positions of the mounting portions 54, 58, 59 are arranged in the following order from front to front: front fourth mounting portion 58, third mounting portion 54, rear fourth mounting portion 59.

[0046] As shown in FIG. 9 , the brackets 51, 52 are detachably attached to the third mounting portion 54, the front fourth mounting portion 58, and the rear fourth mounting portion 59 provided on the side member 11 side using fixing bolts 47 and nuts 48, and particularly, a vibration-damping elastic member 49 is interposed between the fixing bolt 47 inserted into the side member 11 side and the side member 11.

[0047] In addition, the main side connecting portion 51A1 and the sub side connecting portion 51B1 on the first bracket 51 side, and the main side connecting portion 52A1 and the sub side connecting portion 52B1 on the second bracket 52 side are connected in a detachable configuration using fixing bolts 47 and nuts 48.

[0048] 8(A) and 8(B), the main-side connecting portion 51A1a of the first main bracket 51A is formed with a support piece 60 that supports the first sub-bracket 51B fixed to the side surface of the oil cooler 30. The support piece 60 is formed by bending an extension portion that extends further downward from the lower end side of the main-side connecting portion 51A1 of the first main bracket 51A toward the front.

[0049] This allows the oil cooler 30 to be temporarily placed on the support piece 60 of the first main bracket 51A when attaching the oil cooler 30 to the first main bracket 51A side. This makes it easier to assemble the sub-side connecting portion 51B1 of the first sub-bracket 51B and the main-side connecting portion 51A1 of the first main bracket 51A with bolts.

[0050] The first sub-bracket 51B protrudes forward from the side surface of the oil cooler 30, and thus also functions as a rear support portion 44B for attaching the cooling duct 40 to the oil cooler 30.

[0051] The present invention is not limited to the above-described embodiment, and modifications and improvements can be made as appropriate.

[0052] As described above, this specification discloses the following: (1) A mounting structure for a heat exchanger, comprising: a heat exchanger arranged on the vehicle width direction outer side of a side member extending in the fore-and-aft direction; and a bracket that fixes the heat exchanger to the side member, wherein the heat exchanger is mounted to the bracket by a first mounting portion provided on one side surface of the heat exchanger in the vehicle width direction and a second mounting portion provided on the other side surface of the heat exchanger in the vehicle width direction, and the first mounting portion and the second mounting portion are positioned offset in the vertical direction. This configuration reduces the moment acting on the heat exchanger when the vehicle is traveling, and enables the heat exchanger to be fixed to the side member more firmly and stably.

[0053] (2) The heat exchanger mounting structure according to (1), wherein the first mounting portion is provided on the outer side of the heat exchanger in the vehicle width direction, the second mounting portion is provided on the inner side of the heat exchanger in the vehicle width direction, and the first mounting portion is disposed higher than the second mounting portion. This configuration makes it possible to reduce the moment acting on the heat exchanger mounted and fixed to the side member side with a simple configuration.

[0054] (3) The mounting structure for a heat exchanger according to (1) or (2), wherein the bracket comprises: a first bracket attached to the first mounting portion and a third mounting portion provided on the side surface of the side member on the outer side in the vehicle width direction, and a second bracket attached to the second mounting portion and a fourth mounting portion provided on the side surface of the side member on the outer side in the vehicle width direction. This configuration makes it possible to reduce the moment acting on the heat exchanger attached and fixed to the side member side with a simple configuration.

[0055] (4) The heat exchanger mounting structure according to (3), wherein the third mounting portion is disposed above the fourth mounting portion. This configuration makes it possible to reduce the moment acting on the heat exchanger mounted and fixed to the side member with a simple configuration.

[0056] (5) The heat exchanger mounting structure according to (3) or (4), wherein the second bracket is mounted to the side member by a fourth front mounting portion on the front side of the heat exchanger and a fourth rear mounting portion on the rear side of the heat exchanger. This configuration makes it possible to reduce the moment acting on the heat exchanger mounted and fixed to the side member side with a simple configuration.

[0057] (6) The heat exchanger mounting structure according to (5), wherein the front fourth mounting portion is disposed higher than the rear fourth mounting portion. This configuration makes it possible to reduce the moment acting on the heat exchanger mounted and fixed to the side member with a simple configuration.

[0058] (7) The heat exchanger mounting structure according to (5) or (6), in which the front fourth mounting portion, the third mounting portion, and the rear fourth mounting portion are arranged in this order from the front side. This configuration makes it possible to reduce the moment acting on the heat exchanger mounted and fixed to the side member with a simple configuration.

[0059] (8) The heat exchanger mounting structure according to any one of (3) to (7), wherein the first bracket extends from the third mounting portion outward in the vehicle width direction and has an inclined portion that inclines toward the heat exchanger on the outer side in the vehicle width direction in a plan view. With this configuration, a space can be secured between the rear of the oil cooler and the first bracket.

[0060] (9) The heat exchanger mounting structure according to any one of (3) to (8), wherein the first bracket extends outward in the vehicle width direction from the third mounting portion and has a bent portion that protrudes upward on the center side in the vehicle width direction in a front view. This configuration ensures space behind the oil cooler, and when the vehicle collides with a foreign object, the bent portion of the first bracket bends further to absorb impact.

[0061] (10) The heat exchanger mounting structure according to any one of (3) to (9), wherein the second bracket extends in the front-rear direction along the side member and has a C-shape with a central portion in the front-rear direction protruding toward the heat exchanger. With this configuration, when the vehicle collides with a foreign object, the protruding portion of the second bracket can absorb the impact.

[0062] (11) The heat exchanger mounting structure according to any one of (3) to (10), wherein the heat exchanger includes a cooling duct that introduces cooling air to a front side, and the cooling duct is mounted to the heat exchanger by the first bracket. With this configuration, the first mounting portion can be used as both a component that mounts the heat exchanger to the side member side and a component that mounts the cooling duct to the heat exchanger side, thereby reducing the number of components.

[0063] (12) The heat exchanger mounting structure according to any one of (3) to (11), wherein the first bracket comprises a first sub-bracket attached to the heat exchanger side and a first main bracket attached to the third mounting portion, and the first sub-bracket is held and fixed to the first main bracket from below. According to this configuration, the first bracket can support the heat exchanger while fixing the heat exchanger to the first bracket side, making the heat exchanger mounting work easier.

[0064] (13) The heat exchanger mounting structure according to any one of (1) to (12), wherein the heat exchanger and the continuously variable transmission connected to the heat exchanger are disposed close to one end in the vehicle width direction. With this configuration, the piping between the heat exchanger and the continuously variable transmission can be configured to be simple and short.

[0065] (14) The mounting structure for a heat exchanger according to any one of (1) to (13), wherein the heat exchanger is a vertical oil cooler, and the bracket fixes the oil cooler to the side member with the cooling surface of the oil cooler facing forward. With this configuration, the width of the cooling duct and the oil cooler can be made compact, and the cooling air can be more easily applied to the entire cooling surface of the oil cooler, thereby improving cooling efficiency.

[0066] REFERENCE SIGNS LIST 11 Side member 30 Oil cooler (heat exchanger) 40 Cooling duct 50 Mounting mechanism 51 First bracket 51c Support piece 52 Second bracket 53 First mounting portion 54 Third mounting portion 55 Bent portion (folded portion) 57 Second mounting portion 58 Front fourth mounting portion (fourth mounting portion) 59 Rear fourth mounting portion (fourth mounting portion)

Claims

1. a heat exchanger disposed on the outer side in the vehicle width direction of a side member extending in the front-rear direction; a bracket for fixing the heat exchanger to the side member; A mounting structure for a heat exchanger comprising: the heat exchanger is attached to the bracket by a first attachment portion provided on one side surface of the heat exchanger in the vehicle width direction and a second attachment portion provided on the other side surface of the heat exchanger in the vehicle width direction; the first mounting portion and the second mounting portion are disposed at positions offset in the up-down direction, The bracket is a first bracket attached to the first attachment portion and a third attachment portion provided on a side surface of the side member on an outer side in the vehicle width direction; a second bracket attached to the second attachment portion and a fourth attachment portion provided on a side surface of the side member on the outer side in the vehicle width direction; and The first bracket is attached to the heat exchanger only by the first attachment portion. Heat exchanger mounting structure.

2. the first mounting portion is provided on an outer side of the heat exchanger in a vehicle width direction, the second mounting portion is provided on an inner side of the heat exchanger in a vehicle width direction, The first mounting portion is disposed above the second mounting portion. The heat exchanger mounting structure according to claim 1.

3. (delete)

4. The third mounting portion is disposed above the fourth mounting portion. The heat exchanger mounting structure according to claim 1.

5. the second bracket is attached to the side member by a front-side fourth mounting portion on a front side of the heat exchanger and a rear-side fourth mounting portion on a rear side of the heat exchanger; The heat exchanger mounting structure according to claim 1.

6. The front fourth mounting portion is disposed above the rear fourth mounting portion. The heat exchanger mounting structure according to claim 5.

7. The front fourth mounting portion, the third mounting portion, and the rear fourth mounting portion are arranged in this order from the front side.

7. The heat exchanger mounting structure according to claim 5 or 6.

8. the first bracket extends from the third mounting portion toward the outside in the vehicle width direction, and has an inclined portion that inclines toward the heat exchanger on the outside in the vehicle width direction in a plan view; The heat exchanger mounting structure according to claim 1.

9. the first bracket extends from the third mounting portion outward in a vehicle width direction and has a bent portion that protrudes upward toward a center side in the vehicle width direction in a front view; The heat exchanger mounting structure according to claim 1.

10. The second bracket extends in the front-rear direction along the side member, and has a C-shape with a central portion in the front-rear direction protruding toward the heat exchanger. The heat exchanger mounting structure according to claim 1.

11. the heat exchanger is provided with a cooling duct on the front side for introducing cooling air; the cooling duct is attached to the heat exchanger by the first bracket; The heat exchanger mounting structure according to claim 1.

12. The first bracket includes a first sub-bracket attached to the heat exchanger side and a first main bracket attached to the third mounting portion, and the first sub-bracket is held and fixed to the first main bracket from below. The heat exchanger mounting structure according to claim 1.

13. The heat exchanger and the continuously variable transmission connected to the heat exchanger are disposed near one end in the vehicle width direction. A heat exchanger mounting structure according to any one of claims 1, 2, and 4 to 12.

14. the heat exchanger is a vertical oil cooler, The bracket fixes the oil cooler to the side member with the cooling surface of the oil cooler facing forward. A heat exchanger mounting structure according to any one of claims 1, 2, and 4 to 12.